.workspace-panel{flex:1 1 120px;min-height:80px;overflow:auto;padding:0 3px 10px;color:var(--ink)}.workspace-panel-body{animation:workspace-panel-arrive .19s var(--ease) both}.workspace-panel h3{font-size:12px;line-height:1.4;font-weight:600;margin:6px 0}.workspace-panel p{font-size:11px;line-height:1.55;color:var(--muted);margin:0}.workspace-empty-art{height:76px;position:relative;display:grid;place-items:center;margin:6px 0}.empty-sheet{width:51px;height:61px;position:absolute;border:1px solid var(--line);border-radius:7px;background:var(--sidebar)}.sheet-back{transform:translate(12px,-2px) rotate(12deg);background:var(--surface-soft)}.sheet-front{display:flex;flex-direction:column;align-items:flex-start;padding:9px;gap:5px;transform:rotate(-7deg);background:linear-gradient(145deg,var(--surface),var(--surface-soft));box-shadow:var(--shadow-sm)}.sheet-front svg{color:var(--ink)}.sheet-front i{width:100%;height:2px;background:var(--line);border-radius:2px}.sheet-front i:last-child{width:65%}.empty-link{position:absolute;inset-inline-start:calc(50% + 17px);bottom:2px;width:25px;height:25px;display:grid;place-items:center;background:var(--surface);border:1px solid var(--line);border-radius:8px}.is-sketch .sheet-front{transform:rotate(-3deg)}.is-sketch .sheet-back{transform:translate(6px,-3px) rotate(6deg)}.workspace-sample-rows{list-style:none;margin:0;padding:0}.workspace-sample-rows li{display:flex;align-items:center;gap:7px;padding:9px 0;border-bottom:1px solid var(--line);animation:workspace-panel-arrive .19s var(--ease) both}.workspace-row-icon{display:grid;place-items:center;width:27px;height:30px;flex-shrink:0;border-radius:5px;background:var(--surface-soft);color:var(--muted)}.workspace-sample-rows li>div{min-width:0}.workspace-sample-rows strong{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:11px;font-weight:500}.workspace-sample-rows small{display:block;color:var(--muted);font-size:9px;margin-top:3px}.agent-preview{margin:0 -3px 12px}.agent-wheel{display:block;width:100%;height:112px;padding:0;position:relative;overflow:hidden;perspective:420px;border:0;border-radius:8px;background:transparent;cursor:pointer}.workspace-panel .agent-wheel:is(:hover,:active):not(:disabled){background:transparent;box-shadow:none}.agent-wheel:before{content:"";position:absolute;inset:10px 16px;background:radial-gradient(ellipse at center,color-mix(in srgb,var(--ink) 6%,transparent),transparent 66%);pointer-events:none}.agent-mark{position:absolute;left:calc(50% - 32px);top:24px;width:64px;height:64px;display:grid;place-items:center;opacity:.24;transition:transform 1.1s cubic-bezier(.22,.68,.2,1),opacity 1.1s ease;pointer-events:auto}.agent-mark[data-front=true]{opacity:1}.agent-mark[data-back=true]{opacity:0;pointer-events:none}.agent-mark span{width:48px;height:48px;display:block;transform:scale(.65);transition:transform 1.1s cubic-bezier(.22,.68,.2,1)}.agent-mark[data-front=true] span{transform:scale(1.12)}.agent-glyph i{display:block;width:100%;height:100%;background:var(--ink);-webkit-mask-size:contain;mask-size:contain;-webkit-mask-position:center;mask-position:center;-webkit-mask-repeat:no-repeat;mask-repeat:no-repeat;transform:translate(0) rotate(0) scale(1);transition:transform .42s var(--ease)}.agent-mark:not([data-back=true]):hover{opacity:1}.agent-mark[data-provider=gemini]:hover i,.agent-wheel:focus-visible .agent-mark[data-front=true][data-provider=gemini] i{transform:scale(1.14) rotate(12deg)}.agent-mark[data-provider=openai]:hover i,.agent-wheel:focus-visible .agent-mark[data-front=true][data-provider=openai] i{transform:rotate(30deg)}.agent-mark[data-provider=claude]:hover i,.agent-wheel:focus-visible .agent-mark[data-front=true][data-provider=claude] i{transform:scale(1.12) rotate(-15deg)}.agent-mark[data-provider=grok]:hover i,.agent-wheel:focus-visible .agent-mark[data-front=true][data-provider=grok] i{transform:translate(3px,-4px) rotate(-12deg)}.agent-wheel-caption{display:flex;justify-content:center;min-height:20px;font-size:13px;font-weight:600;letter-spacing:-.015em}.agent-wheel-caption>span{text-align:center;animation:agent-name-arrive .7s var(--ease) both}@keyframes agent-name-arrive{0%{opacity:0;transform:translateY(3px)}to{opacity:1;transform:translateY(0)}}.workspace-panel button:focus-visible{outline:2px solid var(--muted);outline-offset:2px}@keyframes workspace-panel-arrive{0%{opacity:0;translate:0 4px}to{opacity:1;translate:0 0}}@media(prefers-reduced-motion:reduce){.workspace-panel-body,.workspace-sample-rows li,.agent-wheel-caption>span{animation:none}.agent-mark,.agent-mark span{transition:none}}.workspace-panel{display:flex;flex-direction:column;border-top:0}.workspace-sidebar .sidebar-book-card,.workspace-sidebar .sidebar-footer{flex-shrink:0}.workspace-panel{padding-bottom:12px}.workspace-panel-body{flex-shrink:0;margin-block-start:auto;padding-block-start:12px;text-align:center}.workspace-panel-body:has(.workspace-sample-rows){text-align:start}.workspace-panel-action{width:100%;height:30px;display:flex;align-items:center;justify-content:center;gap:6px;margin-top:12px;padding:0 8px;border-radius:6px;background:var(--brand);color:var(--primary-text);font-size:11px;font-weight:550;border:1px solid var(--line)}.workspace-panel-action:disabled{opacity:.65;cursor:not-allowed}.workspace-panel{margin-block-start:-12px;padding-block-start:24px;mask-image:linear-gradient(to bottom,transparent,#000 24px);-webkit-mask-image:linear-gradient(to bottom,transparent,#000 24px)}.workspace-profile-copy{display:flex;flex-direction:column;align-items:flex-start;gap:3px;min-width:0}.workspace-sidebar .local-workspace{height:auto;min-height:53px}.workspace-preview-toggle{display:flex;align-items:center;gap:4px;padding:2px 0;border:0;border-radius:3px;color:var(--muted);background:transparent;font-size:9px;line-height:1.25}.workspace-preview-toggle:hover,.workspace-preview-toggle[aria-pressed=true]{color:var(--ink);background:transparent}.workspace-preview-toggle:focus-visible{outline:2px solid var(--muted);outline-offset:2px}@media(prefers-reduced-motion:reduce){.agent-wheel .agent-mark i{transition:none;transform:none!important}}.auth-page{position:relative;isolation:isolate;min-height:100%;height:100%;overflow:auto;background:var(--canvas);color:var(--ink);display:flex;flex-direction:column}.auth-backdrop{position:fixed;inset:0;z-index:-1;pointer-events:none}.auth-backdrop .ambient-ribbons{opacity:.36}.auth-backdrop canvas{pointer-events:none}.auth-header{display:flex;align-items:center;justify-content:space-between;padding:24px 40px;gap:16px}.auth-preferences{display:flex;align-items:center;gap:14px}.auth-theme{display:flex;border:1px solid var(--line);padding:3px;border-radius:7px;background:var(--surface)}.auth-theme button{width:30px;height:30px;display:grid;place-items:center;background:none;color:var(--muted);border:0;border-radius:4px}.auth-theme button[aria-pressed=true]{background:var(--surface-soft);color:var(--ink)}.auth-layout{width:min(1040px,calc(100% - 80px));margin:auto;display:grid;grid-template-columns:1.2fr 1fr;align-items:center;gap:90px;padding:40px 0 64px}.auth-cover{align-self:stretch;display:flex;flex-direction:column;justify-content:center}.auth-book-art{height:280px;position:relative;perspective:1000px;display:grid;place-items:center}.auth-book{width:160px;height:216px;position:relative;transform:rotateY(-24deg) rotate(-9deg);animation:auth-book-arrive 1s var(--ease) both}.auth-book-pages{position:absolute;inset:7px -12px 3px 6px;border-radius:2px 12px 12px 3px;background:repeating-linear-gradient(#f0eee9 0 2px,#dfdcd4 2px 3px);box-shadow:14px 20px 35px #0002}.auth-book-cover{position:absolute;inset:0;border-radius:3px 11px 11px 3px;background:linear-gradient(120deg,#373940,#16171c);box-shadow:inset 8px 0 #090a0d55,inset 9px 0 #ffffff0b,0 24px 45px #0002;display:flex;flex-direction:column;align-items:center;padding:48px 24px 24px;gap:24px;border:1px solid #ffffff15}.auth-book-cover>img:first-child{width:52px;height:52px;filter:brightness(0) invert(1);opacity:.8}.auth-book-cover .brand-wordmark{width:85px;height:auto;filter:brightness(0) invert(1)}.auth-book-cover>span{font-size:10px;color:#aaa;letter-spacing:.2em;margin-top:auto}.auth-orbit{position:absolute;width:320px;height:160px;border:1px solid var(--line);border-radius:50%;transform:rotate(-30deg);opacity:.65}.auth-orbit.orbit-two{width:360px;height:200px;transform:rotate(35deg)}.auth-satellite{position:absolute;width:14px;height:14px;background:var(--surface);box-shadow:var(--shadow-sm);border:1px solid var(--line);border-radius:4px}.satellite-one{top:37px;inset-inline-start:16%}.satellite-two{bottom:50px;inset-inline-end:10%;width:22px;height:22px}.auth-cover-copy{max-width:370px;margin:24px auto 0}.auth-cover h1{font-size:40px;font-weight:500;letter-spacing:-1.8px;line-height:1.12;margin:0 0 18px;text-wrap:balance}.auth-cover p{color:var(--muted);font-size:15px;line-height:1.6;max-width:300px;margin:0}.auth-card{max-width:390px;width:100%;padding:8px 0}.auth-eyebrow{font-size:10px;letter-spacing:.13em;color:var(--muted)}.auth-card h2{font-size:27px;letter-spacing:-.8px;line-height:1.15;font-weight:550;margin:18px 0 12px}.auth-intro{color:var(--muted);font-size:13px;line-height:1.5;min-height:40px;margin:0 0 24px}.auth-intro strong{font-weight:500;color:var(--ink);display:inline-block;margin-top:5px}.auth-card form{display:flex;flex-direction:column}.auth-card label{font-size:12px;margin-bottom:7px;margin-top:12px}.auth-input{display:flex;align-items:center;gap:10px;background:var(--surface);border:1px solid var(--line);border-radius:7px;padding:0 12px;color:var(--muted);height:42px}.auth-input:focus-within{outline:none;border-color:color-mix(in srgb,var(--ink) 45%,var(--line));box-shadow:0 0 0 2px color-mix(in srgb,var(--ink) 6%,transparent)}.auth-page .auth-input input:focus-visible{outline:none;box-shadow:none}.auth-page .auth-code:focus-visible{outline:none;border-color:color-mix(in srgb,var(--ink) 45%,var(--line));box-shadow:0 0 0 2px color-mix(in srgb,var(--ink) 6%,transparent)}.auth-input input{width:100%;min-width:0;color:var(--ink);background:none;border:0;outline:none;padding:0;font:inherit;height:100%}.auth-code{font:500 25px var(--font-ui);letter-spacing:.35em;width:100%;height:54px;padding:8px 12px;text-align:center;background:var(--surface);border:1px solid var(--line);border-radius:7px;color:var(--ink)}.auth-submit{display:flex;align-items:center;justify-content:center;gap:10px;margin-top:16px;height:42px;border:0;border-radius:7px;background:var(--brand);color:var(--primary-text);font:500 13px var(--font-ui)}.auth-submit:hover{background:var(--brand-hover)}.auth-submit:disabled{opacity:.55;cursor:wait}.auth-password-toggle{display:block;margin:12px auto 0;padding:2px 0;background:none;border:0;color:var(--muted);font-size:11px}.auth-password-toggle:hover{color:var(--ink);background:transparent}.auth-divider{display:flex;align-items:center;gap:12px;color:var(--muted);font-size:11px;margin:20px 0}.auth-divider:before,.auth-divider:after{content:"";height:1px;flex:1;background:var(--line)}.auth-providers{display:grid;gap:8px}.auth-providers button{height:38px;display:flex;align-items:center;justify-content:center;gap:10px;border:1px solid var(--line);border-radius:7px;background:var(--surface);color:var(--ink);opacity:.6;cursor:not-allowed}.auth-providers small{font-size:9px;color:var(--muted);margin-inline-start:auto}.auth-providers button>span:first-child,.auth-providers svg{margin-inline-end:auto}.google-letter{font-size:17px;font-weight:700}.auth-unified{font-size:11px;line-height:1.5;color:var(--muted);margin:16px 0 0}.auth-privacy{display:flex;align-items:center;gap:7px;color:var(--muted);font-size:10px;line-height:1.5;margin:28px 0 0}.auth-error{color:var(--danger);font-size:12px;line-height:1.5;margin:12px 0 0}.auth-message{color:var(--muted);font-size:12px}.auth-secondary{display:flex;flex-direction:column;align-items:center;gap:12px;margin-top:18px}.auth-secondary button{border:0;background:none;color:var(--muted);display:flex;align-items:center;gap:7px;font-size:12px}.auth-secondary button:disabled{opacity:.45}.auth-footer{padding:20px 40px;display:flex;justify-content:space-between;gap:20px;color:var(--muted);font-size:10px}.auth-footer a{color:inherit;text-decoration:none}.auth-step{animation:auth-step-in .28s var(--ease)}.auth-spinner{animation:auth-spin 1s linear infinite}.auth-transition{position:fixed;inset:0;z-index:1000;background:var(--canvas);display:flex;align-items:center;justify-content:center;flex-direction:column;gap:18px;color:var(--muted);font-size:13px}.auth-transition img{filter:var(--auth-logo-filter,none)}:root[data-theme=dark] .auth-transition img{filter:brightness(0) invert(1)}.auth-transition-leaving{pointer-events:none;animation:auth-transition-away .42s var(--ease) both}.signed-workspace{height:100%;animation:auth-step-in .42s var(--ease)}.auth-session-error{position:fixed;bottom:24px;left:50%;transform:translate(-50%);background:var(--surface);padding:10px 16px;color:var(--danger);border-radius:8px}@keyframes auth-step-in{0%{opacity:0;transform:translateY(8px);filter:blur(2px)}to{opacity:1;transform:none;filter:none}}@keyframes auth-book-arrive{0%{opacity:0;transform:rotateY(-40deg) rotate(-12deg) translateY(16px)}to{opacity:1;transform:rotateY(-24deg) rotate(-9deg)}}@keyframes auth-transition-away{0%,25%{opacity:1}to{opacity:0;filter:blur(4px);transform:scale(1.025)}}@keyframes auth-spin{to{transform:rotate(360deg)}}@media(max-width:800px){.auth-layout{gap:35px;width:calc(100% - 48px);grid-template-columns:1fr 1fr}.auth-cover h1{font-size:32px}.auth-book-art{height:240px}.auth-orbit{width:240px}.auth-orbit.orbit-two{width:265px}.auth-header{padding:20px 24px}}@media(max-width:600px){.auth-layout{display:block;width:min(360px,calc(100% - 40px));padding:20px 0 40px}.auth-cover{display:none}.auth-header{padding:18px 20px}.auth-preferences{gap:6px}.auth-theme{display:none}.auth-card{padding:0}.auth-footer{padding:16px 20px}.auth-card h2{font-size:28px}}@media(prefers-reduced-motion:reduce){.auth-step,.auth-book,.auth-transition-leaving,.signed-workspace,.auth-spinner{animation:none}.auth-transition-leaving{display:none}}.sync-status-control{position:relative;display:inline-flex;min-width:0}.sync-status-control>.save-status{display:flex;gap:6px;align-items:center;min-height:30px;border:0;background:none;color:var(--muted);font:inherit;font-size:11px;padding:0 5px;white-space:nowrap}.sync-status-control.warning>.save-status{color:var(--ink)}.sync-status-control.error>.save-status{color:var(--danger)}.sync-status-control .sync-status-popover{position:absolute;inset-inline-end:0;top:calc(100% + 7px);width:min(280px,80vw);padding:12px;z-index:200;white-space:normal;font-size:12px;line-height:1.4}.sync-status-popover p{color:var(--muted);margin:8px 0}.sync-status-popover small{display:block;color:var(--muted);font-size:10px}.sync-status-popover button{display:flex;gap:6px;align-items:center;margin-top:10px;border:0;border-radius:4px;background:var(--surface-soft);color:var(--ink);padding:6px 8px;font-size:11px}.account-signout{flex-shrink:0}.library-cloud-status{position:absolute;inset-inline-end:70px;top:10px;z-index:120}.workspace-profile-copy .account-name{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:140px}.library-user .account-copy{font-size:11px;color:var(--muted)}@media(max-width:600px){.sync-status-control>.save-status{font-size:10px;max-width:140px;overflow:hidden}.sync-status-control>.save-status span{overflow:hidden;text-overflow:ellipsis}.library-cloud-status{inset-inline-end:55px}}.library-user .account-email{font-size:10px;color:var(--muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}@media(max-width:600px){.library-layer .library-sheet .library-header{justify-content:flex-start;padding-inline-start:50px}.library-cloud-status .save-status{max-width:min(140px,calc(100vw - 220px))}}.library-sheet .storage-notices{position:absolute;inset-inline-end:12px;max-width:min(380px,calc(100% - 24px))}.auth-page .auth-submit:hover:not(:disabled),.auth-page .auth-submit:focus-visible{background:var(--brand-hover);color:var(--primary-text)}.auth-page .auth-submit:disabled{background:var(--brand);color:var(--primary-text);opacity:.55;cursor:wait}.auth-page .auth-providers button:disabled{background:var(--surface);color:var(--ink);opacity:.58;cursor:not-allowed}.library-user>div>span:first-child{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}:root{--book-rule: #8f805f24;--book-inner-connector: #b8ad8e;--book-inner-connector-active: #8f805f;--library-cover-background: radial-gradient(ellipse at 5% 10%,#727272 0,transparent 58%),radial-gradient(ellipse at 90% 30%,#5c5c5c 0,transparent 65%),linear-gradient(145deg,#404040,#292929 65%);--library-cover-veil: linear-gradient(transparent 25%,rgba(12,12,12,.75));--library-cover-ink: #ffffff;--library-cover-control: #18181870;--library-cover-control-hover: #181818b0;--library-cover-border: #ffffff16;--library-cover-ring: #ffffff20;--library-cover-orbit: #e5e5e588;--library-cover-orbit-glow: #e5e5e55a;--canvas: #f7f7f8;--surface: #ffffff;--surface-soft: #eeeeF0;--sidebar: #f3f3f4;--ink: #18191c;--muted: #73767e;--line: #dedfe3;--brand: #191a1e;--brand-hover: #34363d;--accent: #8c909b;--sage: #e6e7e9;--peach: #eeeff1;--periwinkle: #dfe1e7;--selection: #747b8c;--selection-soft: rgba(110, 118, 137, .12);--danger: #b44848;--font-latin: "Geist Variable";--font-arabic: "Noto Sans Arabic";--font-ui: var(--font-latin), var(--font-arabic), sans-serif;--font-weight-ui: 450;--font-weight-body: 500;--font-display: var(--font-ui);--line-ui: 1.25;--line-body: 1.4;--control-height: 30px;--space-1: 4px;--space-2: 8px;--space-3: 12px;--space-4: 16px;--radius-sm: 5px;--radius-node: 8px;--radius-panel: 10px;--radius-dialog: 12px;--node-shadow: 0 3px 8px #171b2810, 0 8px 22px #171b2809;--node-hover-glow: 0 0 14px 2px #6e7a9620;--node-selected-glow: 0 0 10px 2px #7486b34d, 0 0 26px 6px #7486b329;--shadow-sm: 0 1px 3px #10121a08;--shadow-panel: 0 8px 24px #10121a12, 0 1px 3px #10121a08;--shadow-dialog: 0 24px 80px #080a1433;--motion-book-slide: .4s;--motion-book-library-slide: .5s;--motion-book-settle: .16s;--book-motion-blur: 1.2px;--motion-fast: .13s;--motion-scrollbar: .24s;--scrollbar-thumb: #73767e88;--motion-layout: .19s;--ease: cubic-bezier(.2, .7, .25, 1);--grid-base-rgb: 128, 131, 140;--grid-base-alpha: .4;--grid-dot: rgba(var(--grid-base-rgb), var(--grid-base-alpha));--grid-active-rgb: 24, 26, 32;--grid-hover-exponent: 1.25;--grid-active-alpha: 1;--ambient-start: rgba(32, 32, 32, .48);--ambient-middle: rgba(52, 52, 52, .5);--ambient-end: rgba(76, 76, 76, .52);--ambient-mint: rgba(42, 42, 42, .48);--ambient-gold: rgba(64, 64, 64, .48);--ambient-rose: rgba(26, 26, 26, .48);--ambient-opacity: .56;--ambient-height: 34%;--ambient-bottom: -4%;--ambient-cycle-a: 14s;--ambient-cycle-b: 19s;--connector: #bfc2ca;--connector-label: #636773;--connector-label-hover: #08090b;--connector-text-halo: #ffffff;--page-icon-shadow: 0 1px 1px #00000026;--header: rgba(255, 255, 255, .98);--overlay: rgba(16, 18, 24, .32);--page-rule: #e6e7ea;--primary-text: #ffffff;--focus-text: #454b59;--sheen: rgba(255, 255, 255, .3)}:root[data-theme=dark]{--scrollbar-thumb: #b3b8c580;--library-cover-background: radial-gradient(ellipse at 5% 10%,#497c80 0,transparent 58%),radial-gradient(ellipse at 90% 30%,#67528d 0,transparent 65%),linear-gradient(145deg,#25464c,#252735 65%);--library-cover-veil: linear-gradient(transparent 25%,rgba(9,12,18,.75));--library-cover-ink: #ffffff;--library-cover-control: #14182070;--library-cover-control-hover: #141820b0;--library-cover-border: #ffffff16;--library-cover-ring: #ffffff20;--library-cover-orbit: #d7e9ea88;--library-cover-orbit-glow: #c9e5e55a;--canvas: #101114;--surface: #191a1e;--surface-soft: #25262c;--sidebar: #15161a;--ink: #f0f1f4;--muted: #999da8;--line: #2e3038;--brand: #eceef4;--brand-hover: #ffffff;--accent: #bec3cf;--selection: #b7bdcd;--selection-soft: rgba(185, 193, 215, .13);--danger: #ef9b9b;--grid-base-rgb: 196, 201, 214;--grid-base-alpha: .34;--grid-active-rgb: 255, 255, 255;--ambient-start: rgba(112, 85, 226, .8);--ambient-middle: rgba(114, 137, 239, .84);--ambient-end: rgba(100, 201, 231, .88);--ambient-mint: rgba(88, 216, 160, .82);--ambient-gold: rgba(241, 181, 88, .82);--ambient-rose: rgba(236, 103, 176, .82);--connector: #545862;--connector-label: #b0b4be;--connector-label-hover: #ffffff;--connector-text-halo: #101114;--page-icon-shadow: 0 1px 2px #00000066;--header: rgba(21, 22, 26, .98);--overlay: rgba(0, 0, 0, .58);--page-rule: #30323a;--primary-text: #17181c;--focus-text: #d3d7e2;--node-shadow: 0 4px 10px #00000030, 0 10px 26px #00000020;--node-hover-glow: 0 0 16px 2px #d8e0ff1f;--node-selected-glow: 0 0 12px 2px #e2e8ff6b, 0 0 30px 6px #c6d3ff30;--shadow-sm: 0 1px 4px #00000024, inset 0 1px 0 #ffffff05;--shadow-panel: 0 8px 28px #00000040, inset 0 1px 0 #ffffff08;--shadow-dialog: 0 24px 80px #00000080;--sheen: rgba(255, 255, 255, .65)}@font-face{font-family:Geist Variable;font-style:normal;font-weight:100 900;font-display:swap;src:url(/assets/geist-normal-BgDaEnEv.woff2) format("woff2")}@font-face{font-family:Geist Variable;font-style:italic;font-weight:100 900;font-display:swap;src:url(/assets/geist-italic-dTnRTFFJ.woff2) format("woff2")}@font-face{font-family:Noto Sans Arabic;font-style:normal;font-weight:400;font-display:swap;src:url(/assets/noto-sans-arabic-400-BYh-Sgrn.ttf) format("truetype")}@font-face{font-family:Noto Sans Arabic;font-style:normal;font-weight:500;font-display:swap;src:url(/assets/noto-sans-arabic-500-Cwdoruw7.ttf) format("truetype")}@font-face{font-family:Noto Sans Arabic;font-style:normal;font-weight:600;font-display:swap;src:url(/assets/noto-sans-arabic-600-CKoc69HY.ttf) format("truetype")}@font-face{font-family:Noto Sans Arabic;font-style:normal;font-weight:700;font-display:swap;src:url(/assets/noto-sans-arabic-700-DAA5l-On.ttf) format("truetype")}@property --scrollbar-current{syntax: "<color>"; inherits: true; initial-value: transparent;}*{--scrollbar-current: transparent;scrollbar-width:thin;scrollbar-color:var(--scrollbar-current) transparent}*:hover,*:focus-visible,*[data-scroll-active]{--scrollbar-current: var(--scrollbar-thumb)}:where(.scroll-surface,.help-modal,.page-scroll,.library-panel,.library-content,.book-library,.sidebar-books,.search-results,.header-search-results,.emoji-grid,.bn-select,textarea){transition:--scrollbar-current var(--motion-scrollbar) ease}@supports selector(::-webkit-scrollbar){*{scrollbar-width:auto;scrollbar-color:auto}*::-webkit-scrollbar{width:10px;height:10px}*::-webkit-scrollbar-track,*::-webkit-scrollbar-corner{background:transparent}*::-webkit-scrollbar-thumb{min-height:28px;min-width:28px;border:3px solid transparent;border-radius:999px;background-color:var(--scrollbar-current);background-clip:padding-box}*::-webkit-scrollbar-thumb:hover{background-color:var(--muted)}}@media(prefers-reduced-motion:reduce){:root{--motion-scrollbar: 0ms}}@media(forced-colors:active){*{scrollbar-color:auto!important;--scrollbar-current: CanvasText}}*{box-sizing:border-box}html,body,#root{width:100%;height:100%;margin:0}body{font-family:var(--font-ui);color:var(--ink);font-size:13px;-webkit-font-smoothing:antialiased;overflow:hidden;font-weight:var(--font-weight-ui);line-height:var(--line-ui)}button,input,textarea,select{font:inherit}button{border:0;background:none;color:inherit;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;gap:8px;transition:background var(--motion-fast),color var(--motion-fast),box-shadow var(--motion-fast);white-space:nowrap}button:disabled{opacity:.3;cursor:default}button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible,[tabindex]:focus-visible{outline:2px solid var(--selection);outline-offset:3px}input,textarea{color:inherit}input,textarea,select{border:1px solid var(--line);border-radius:7px;padding:6px 8px;background:var(--surface)}input::placeholder,textarea::placeholder{color:#a7a7a7}button:hover:not(:disabled){background:var(--surface-soft)}kbd{font:11px var(--font-ui);padding:3px 5px;border:1px solid var(--line);border-radius:4px;background:#fff;box-shadow:0 1px 0 var(--line)}.app-shell{height:100%;background:var(--canvas);--rail-width: 0px}.topbar{position:fixed;top:0;left:var(--rail-width);right:0;z-index:30;height:48px;display:flex;align-items:center;gap:12px;background:#fffffff5;border:0;border-radius:0;padding:0 16px;box-shadow:none;border-bottom:1px solid var(--line)}.brand-lockup{display:flex;align-items:center;gap:0;font-size:22px;font-weight:650;letter-spacing:-.9px;flex-shrink:0}.brand-wordmark{display:block;width:auto;height:1em;flex:0 0 auto}.header-divider{width:1px;height:29px;background:var(--line)}.book-switch{display:flex;flex-direction:column;gap:4px;min-width:0}.book-switch-button{padding:0;font-size:12px;font-weight:550;justify-content:flex-start;max-width:320px;overflow:hidden;text-overflow:ellipsis;gap:7px}.book-switch-button:hover{background:none!important;color:var(--selection)}.book-dot{width:7px;height:7px;border-radius:50%;background:#aaa;flex-shrink:0}.workspace-label{font-size:8px;letter-spacing:1.4px;color:var(--muted);margin-left:15px;font-weight:550}.header-right{margin-left:auto;display:flex;align-items:center;gap:6px}.save-status{font-size:11px;color:var(--muted);display:flex;gap:7px;align-items:center;margin-right:4px}.status-dot{height:5px;width:5px;border-radius:100%;background:#979797}.save-status.error{color:var(--danger)}.save-status.error .status-dot{background:var(--danger)}.icon-button{width:var(--control-height);height:var(--control-height);border-radius:var(--radius-sm);flex-shrink:0;padding:0}.icon-button.active{background:var(--selection-soft);color:var(--selection)}.outline-button{height:var(--control-height);border:1px solid var(--line);border-radius:var(--radius-sm);padding:0 9px;font-size:12px}.canvas{position:absolute;inset:0;overflow:clip;background-image:radial-gradient(circle,#d3d3d3 1px,transparent 1px);touch-action:none;-webkit-user-select:none;user-select:none;cursor:default}.canvas.panning{cursor:grab}.canvas.panning:active{cursor:grabbing}.canvas-caption{position:absolute;left:calc(var(--rail-width) + 16px);top:56px;display:flex;flex-direction:column;gap:4px;pointer-events:none;z-index:1;color:var(--muted);font-size:10px}.eyebrow{font-size:9px;letter-spacing:1.9px;font-weight:600;color:#949494}.caption-separator{margin:0 4px;color:#c2c2c2}.book-world{position:absolute;left:0;top:0;transform-origin:0 0;will-change:transform}.connections{position:absolute;overflow:visible;top:0;left:0;pointer-events:none}.connection-line{fill:none;stroke:#d5d5d5;stroke-width:1.8;transition:d var(--motion-layout) var(--ease),stroke .1s ease,stroke-width .1s ease}.connection-hit{fill:none;stroke:transparent;stroke-width:20;pointer-events:stroke;cursor:pointer}.connection:hover .connection-line,.connection.is-hovered .connection-line,.connection.chosen .connection-line{stroke:var(--selection);stroke-width:2.4}.edge-label{position:absolute;transform:translate(-50%,-50%);border-radius:5px;padding:3px 6px;color:var(--muted);background:var(--canvas);font-size:12px;line-height:var(--line-ui);white-space:normal;z-index:1;cursor:grab;transition:opacity var(--motion-layout) var(--ease),left var(--motion-layout) var(--ease),top var(--motion-layout) var(--ease)}.edge-label:hover,.edge-label.chosen{background:#eee;color:var(--brand)}.node{position:absolute;left:0;top:0;display:flex;align-items:center;border:1px solid transparent;border-radius:var(--radius-node);padding:10px 14px;line-height:var(--line-ui);transition:transform var(--motion-layout) var(--ease),opacity var(--motion-layout) var(--ease),translate var(--motion-layout) var(--ease),scale var(--motion-layout) var(--ease),filter var(--motion-layout) var(--ease),box-shadow var(--motion-fast),min-height var(--motion-layout),background var(--motion-fast);box-shadow:var(--node-shadow);opacity:1;translate:0 0;scale:1;filter:none;cursor:default}.node:hover{box-shadow:var(--node-shadow),var(--node-hover-glow)}.node.selected{box-shadow:var(--node-shadow),var(--node-selected-glow)}.node-content{display:flex;align-items:center;gap:7px;width:100%;pointer-events:none}.node-title{flex:1;min-width:0;overflow-wrap:anywhere;white-space:pre-wrap;pointer-events:auto;cursor:text}.node-title-editor{position:relative}.node-title-mirror{display:block;visibility:hidden;pointer-events:none}.node-title-input{position:absolute;inset:0;height:100%;margin:0;font-family:inherit;letter-spacing:inherit;white-space:pre-wrap;overflow-wrap:anywhere;display:block;width:100%;min-width:0;flex:1;border:0;outline:0!important;background:transparent;padding:0;line-height:inherit;color:inherit;font-weight:inherit;font-size:inherit;text-align:inherit;resize:none;border-radius:0;pointer-events:auto;overflow:hidden;-webkit-user-select:text;user-select:text}.node-icon-window{position:absolute;inset:0;pointer-events:none;z-index:2;clip-path:inset(0 round var(--radius-node));transition:clip-path .18s var(--ease)}.page-indicator{position:absolute;right:-4px;top:50%;width:48px;height:48px;transform:translateY(-50%) rotate(-16deg);margin:0;padding:0;font-size:46px;line-height:1;color:inherit;background:transparent;border-radius:12px;pointer-events:auto;opacity:var(--page-silhouette-opacity, .14);z-index:0;transition:opacity var(--motion-fast),transform .18s var(--ease)}.page-indicator.is-emoji{--page-silhouette-opacity: .34;--page-silhouette-hover-opacity: .5}.node:hover .page-indicator,.node:focus-within .page-indicator{background:transparent!important;box-shadow:none;opacity:var(--page-silhouette-hover-opacity, .3);transform:translateY(-50%) rotate(-7deg) scale(1.04)}.node .page-indicator:hover{opacity:.65}.page-indicator{cursor:pointer}.page-indicator:focus-visible{outline:2px solid currentColor;outline-offset:3px;opacity:.6}.node-title{position:relative;z-index:1}.node-drag{position:absolute;left:-29px;top:50%;transform:translateY(-50%);width:23px;height:30px;color:#8a8a8a;border-radius:5px;cursor:grab}.node-add{position:absolute;right:-36px;top:50%;transform:translateY(-50%);background:var(--selection);color:#fff;width:23px;height:23px;border-radius:50%;z-index:3}.node-add:hover{background:var(--brand)!important}.resize-handle{position:absolute;right:-8px;top:0;bottom:-7px;width:16px;background:transparent;border:0;cursor:ew-resize;z-index:4;touch-action:none}.resize-handle:after{content:"";position:absolute;right:1px;bottom:0;width:12px;height:12px;background:var(--canvas);border:2px solid var(--selection);border-radius:50%;opacity:0;pointer-events:none;transition:opacity var(--motion-fast)}.node:hover .resize-handle:after,.node.selected .resize-handle:after,.resize-handle:focus-visible:after{opacity:1}.fold-button{position:absolute;left:calc(100% + 8px);right:auto;top:50%;transform:translateY(-50%);width:30px;height:30px;padding:0;border:0;background:transparent;color:var(--ink);border-radius:50%;z-index:5;opacity:1;cursor:pointer}.fold-button:hover{background:transparent}.fold-badge{display:flex;align-items:center;justify-content:center;min-width:26px;height:26px;padding:0 3px;border-radius:50%;border:1px solid var(--line);background:var(--canvas);color:var(--muted);font-size:11px;font-weight:500;line-height:1;font-variant-numeric:tabular-nums;box-shadow:var(--shadow-sm);transition:background var(--motion-fast) var(--ease),color var(--motion-fast) var(--ease),border-color var(--motion-fast) var(--ease),box-shadow var(--motion-fast) var(--ease),transform var(--motion-fast) var(--ease)}.fold-button.is-empty .fold-badge{color:color-mix(in srgb,var(--muted) 72%,var(--canvas))}.fold-button:hover .fold-badge,.fold-button:focus-visible .fold-badge{background:var(--surface-soft);color:var(--ink);border-color:var(--accent);box-shadow:var(--node-hover-glow)}.fold-button:active .fold-badge{transform:scale(.92)}.fold-button:before{content:"";position:absolute;inset:-3px -3px -3px -8px}.fold-button.fold-left:before{inset:-3px -8px -3px -3px}.node.drop-inside{outline:4px solid var(--selection);outline-offset:7px}.node.drop-before:before,.node.drop-after:after{content:"";position:absolute;left:-8px;right:-8px;height:3px;background:var(--selection);border-radius:3px}.node.drop-before:before{top:-12px}.node.drop-after:after{bottom:-12px}.selection-box{position:absolute;background:var(--selection-soft);border:1px solid var(--selection);border-radius:4px;pointer-events:none}.floating-ribbon{position:absolute;display:flex;align-items:center;width:max-content;flex-wrap:wrap;transform-origin:top left;gap:3px;min-height:40px;border:1px solid #dcdcdc;background:#fff;padding:5px;border-radius:8px;box-shadow:var(--shadow-panel);z-index:10;animation:none}.floating-ribbon select{width:67px;padding:6px 3px;font-size:12px;border:0;background:transparent;outline-offset:0}.ribbon-separator{width:1px;height:18px;background:var(--line);margin:0 2px}.page-open-button{height:28px;border-radius:5px;background:var(--brand);color:#fff;font-size:12px;padding:0 9px;margin-left:3px}.page-open-button:hover{background:var(--brand-hover)!important}.text-color{position:relative;display:grid;place-items:center;width:28px;height:28px;cursor:pointer}.text-color>span{position:absolute;bottom:3px;width:14px;height:2px;border-radius:2px}.text-color input{position:absolute;width:100%;height:100%;opacity:0;cursor:pointer}.color-anchor{position:relative}.color-square{width:20px;height:20px;display:block;border-radius:3px;border:1px solid color-mix(in srgb,var(--ink) 22%,transparent)}.bold-letter{font-family:var(--font-ui);font-size:19px;font-weight:750;line-height:1}.color-anchor .icon-button{position:relative}.selection-count{position:absolute;top:-24px;left:0;font-size:10px;color:var(--selection);font-weight:600}.popover{background:var(--surface);border:1px solid var(--line);border-radius:8px;box-shadow:var(--shadow-panel);z-index:50;animation:menu-in .13s ease-out}.color-picker{position:absolute;top:36px;left:0;padding:10px;width:188px}.popover-label{display:block;font-size:11px;color:var(--muted);letter-spacing:0;margin-bottom:8px}.swatches{display:grid;grid-template-columns:repeat(4,1fr);gap:6px}.swatches button{width:32px;height:26px;border:1px solid rgba(0,0,0,.08);border-radius:4px}.custom-color{display:flex;align-items:center;justify-content:space-between;font-size:11px;margin-top:8px}.custom-color input{width:40px;height:26px;padding:2px;cursor:pointer}.bottom-left{position:fixed;bottom:14px;left:calc(var(--rail-width) + 18px);display:flex;align-items:center;gap:10px;z-index:20}.help-button{justify-content:flex-start;gap:9px;color:#868686;font-size:11px;padding:0}.help-button:hover{background:none!important;color:var(--brand)}.shortcut-hint{display:flex;align-items:center;gap:10px;color:var(--muted);font-size:9px}.shortcut-pair{display:inline-flex;align-items:center;gap:5px;white-space:nowrap}.bottom-left .shortcut-key{display:inline-flex;align-items:center;justify-content:center;height:24px;min-width:27px;padding:0 6px 1px;margin:0;border:1px solid var(--line);border-bottom-width:2px;border-radius:5px;background:var(--surface);color:var(--ink);box-shadow:inset 0 -1px 0 var(--surface-soft),0 1px 2px #0000000a;font:500 10px/1 var(--font-ui)}.bottom-left .shortcut-all{min-width:44px;gap:4px}.bottom-left .shortcut-key{cursor:pointer;transition:transform .13s var(--ease),background .13s var(--ease),box-shadow .13s var(--ease)}.bottom-left .shortcut-key:hover{background:var(--surface-soft)}.bottom-left .shortcut-key:active{transform:translateY(1px);box-shadow:none}.bottom-left .shortcut-key:focus-visible{outline:2px solid var(--muted);outline-offset:3px}@media(prefers-reduced-motion:reduce){.bottom-left .shortcut-key{transition:none}}.app-menu .book-delete-action{color:var(--danger)}.app-menu .book-delete-action:hover{color:var(--danger);background:color-mix(in srgb,var(--danger) 10%,transparent)}.canvas-tools,.zoom-tools,.history-tools{display:flex;align-items:center;background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow-sm);border-radius:11px;padding:5px;gap:2px}.canvas-tools{position:fixed;bottom:14px;left:calc(50% + var(--rail-width) / 2);transform:translate(-50%);z-index:20;box-shadow:var(--shadow-panel)}.canvas-tools>.active{background:var(--brand);color:#fff}.add-idea{font-size:11px;padding:0 10px;height:34px;border-radius:6px}.bottom-right{position:fixed;bottom:14px;right:16px;display:flex;gap:6px;z-index:20}.zoom-level{width:42px;font-size:11px;color:#858585;height:30px;border-radius:5px}.zoom-tools .icon-button,.history-tools .icon-button{width:29px}.menu-anchor{position:relative}.app-menu{position:absolute;right:0;top:36px;min-width:196px;padding:4px}.app-menu button{width:100%;justify-content:flex-start;font-size:12px;border-radius:6px;padding:7px 8px;gap:8px;min-height:30px}.app-menu hr{border:0;border-top:1px solid var(--line);margin:5px}.library-panel{position:fixed;top:60px;left:calc(var(--rail-width) + 12px);bottom:70px;width:270px;background:#fffffffa;border:1px solid var(--line);border-radius:10px;padding:12px;z-index:25;box-shadow:var(--shadow-panel);display:flex;flex-direction:column;overflow:auto;animation:menu-in .16s ease-out}.panel-heading{display:flex;align-items:center;justify-content:space-between}.panel-heading>span{font-size:9px;letter-spacing:1.5px;color:var(--muted);font-weight:600}.library-panel h2{font-family:var(--font-display);font-size:19px;font-weight:600;letter-spacing:-.5px;margin:8px 0 14px}.library-book{justify-content:flex-start;padding:8px;gap:8px;border-radius:6px;white-space:normal;text-align:start}.library-book>span{flex:1;font-size:12px;font-weight:550}.library-book small{display:block;font-size:10px;color:var(--muted);margin-top:2px;font-weight:400}.library-book.current{background:#f1f1f1}.new-book{margin-top:10px;border:1px dashed #d6d6d6;border-radius:6px;padding:8px;font-size:12px}.library-foot{margin-top:auto;padding-top:16px;display:flex;gap:8px;color:#9a9a9a;font-size:10px;line-height:var(--line-body)}.toast{position:fixed;bottom:91px;left:50%;transform:translate(-50%);background:var(--brand);color:#f4f4f4;padding:12px 18px;box-shadow:var(--shadow-panel);border-radius:10px;z-index:150;font-size:12px;display:flex;align-items:center;gap:10px;max-width:80vw;animation:menu-in .15s}.storage-notices{position:fixed;top:64px;right:16px;z-index:200;width:350px;max-width:calc(100vw - 32px);display:grid;gap:8px}.storage-notice{display:flex;gap:10px;padding:14px;border:1px solid var(--line);border-radius:var(--radius-panel);background:var(--surface);color:var(--ink);box-shadow:var(--shadow-panel);animation:storage-notice-in .14s var(--ease)}.storage-notice-icon{flex:none;margin-top:1px;color:var(--muted)}.storage-notice-content{min-width:0;flex:1}.storage-notice h2{margin:0 0 5px;font-size:13px;font-weight:600;line-height:1.3}.storage-notice p{margin:0;color:var(--muted);font-size:12px;line-height:1.45;overflow-wrap:anywhere}.storage-notice-actions{display:flex;justify-content:flex-end;flex-wrap:wrap;gap:6px;margin-top:12px}.storage-notice-actions button{min-height:30px;display:inline-flex;align-items:center;justify-content:center;gap:5px;padding:5px 8px;border-radius:5px;background:var(--surface-soft);color:var(--ink);font:inherit;font-size:11px}.storage-notice-actions .storage-primary{background:var(--ink);color:var(--surface)}.storage-notice-actions button:disabled{opacity:.55;cursor:wait}@keyframes storage-notice-in{0%{opacity:0;transform:translateY(-12px)}to{opacity:1;transform:translateY(0)}}@media(prefers-reduced-motion:reduce){.storage-notice{animation:none}}.small-modal-backdrop,.search-backdrop{position:fixed;inset:0;background:#202f2438;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:flex;justify-content:center;align-items:center;z-index:80;padding-top:14vh}.small-modal{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-dialog);padding:22px;width:400px;box-shadow:var(--shadow-dialog)}.small-modal h2{font-family:var(--font-display);font-weight:600;font-size:22px;margin:8px 0 16px;letter-spacing:-.6px}.small-modal p{font-size:13px;line-height:var(--line-body);color:var(--muted)}.small-modal input{width:100%;margin-bottom:14px}.primary-button{padding:8px 12px;background:var(--brand);color:#fff;border-radius:6px;font-size:12px;width:100%;min-height:32px}.primary-button:hover{background:var(--brand-hover)!important}.modal-actions{display:flex;justify-content:flex-end;gap:6px}.modal-actions button{padding:7px 10px;border-radius:7px;font-size:12px}.danger-button{color:#fff;background:var(--danger)}.danger-button:hover{background:#4f4f4f!important}.help-modal{position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-dialog);box-shadow:var(--shadow-dialog);padding:22px;width:520px;max-height:90vh;overflow:auto}.help-modal>.icon-button{position:absolute;right:16px;top:16px}.help-modal h2{font-family:var(--font-display);font-size:23px;font-weight:600;letter-spacing:-.7px;margin:8px 0}.help-modal>p{color:var(--muted);font-size:12px;margin-bottom:16px}.shortcut-list{display:flex;flex-direction:column;gap:8px}.shortcut-list>div{display:flex;align-items:center;gap:12px;font-size:12px}.shortcut-list kbd{min-width:145px;box-shadow:none;background:var(--canvas);border:0;font-size:10px;padding:5px 8px}.help-foot{margin-top:16px;border-top:1px solid var(--line);padding-top:12px;color:var(--muted);font-size:11px;line-height:var(--line-body)}.search-backdrop{align-items:flex-start;padding-top:19vh}.search-dialog{width:480px;background:var(--surface);border:1px solid var(--line);border-radius:10px;box-shadow:var(--shadow-dialog);overflow:hidden}.search-input{display:flex;align-items:center;padding:8px 12px;gap:8px;border-bottom:1px solid var(--line)}.search-input input{border:0;outline:0;flex:1;font-size:14px;padding:6px 0}.search-results{max-height:400px;overflow:auto;padding:5px}.search-results>button{width:100%;justify-content:flex-start;text-align:start;padding:8px;border-radius:5px;gap:8px;white-space:normal;font-size:12px}.search-results>button>span:nth-child(2){flex:1}.search-results small{display:block;color:var(--muted);font-size:10px;margin-top:2px}.result-dot{display:block;width:14px;height:14px;border-radius:4px;border:1px solid #ddd}.search-results p{font-size:12px;color:var(--muted);padding:16px}.loading-screen{height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;background:var(--canvas)}.loading-screen h1{font-size:25px;letter-spacing:-1px}.loading-screen p{font-size:13px;color:var(--muted)}.page-backdrop{position:fixed;inset:0;background:#18251d52;-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px);z-index:100;display:flex;align-items:center;justify-content:center;padding:35px}.node-page{width:880px;height:min(900px,90vh);background:var(--surface);border:1px solid rgba(255,255,255,.7);border-radius:var(--radius-dialog);box-shadow:var(--shadow-dialog);display:flex;flex-direction:column;overflow:hidden;animation:page-in .19s var(--ease);outline:0!important}.node-page.full{width:calc(100vw - 40px);height:calc(100vh - 40px)}.page-top{height:42px;min-height:42px;padding:0 14px;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line)}.page-crumb{display:flex;align-items:center;gap:9px;color:var(--muted);font-size:11px;min-width:0}.page-crumb span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:300px}.page-actions{display:flex;gap:4px}.page-actions button{width:30px;height:30px;border-radius:6px;color:#8d8d8d}.page-scroll{overflow:auto;flex:1;overscroll-behavior:contain}.page-cover{height:140px;position:relative;overflow:hidden;background-size:cover;background-position:center}.cover-sage{background:linear-gradient(120deg,#e6e6e6,#c7c7c7)}.cover-clay{background:linear-gradient(110deg,#dbdbdb,#a3a3a3)}.cover-sky{background:linear-gradient(110deg,#e4e4e4,#bcbcbc)}.cover-lilac{background:linear-gradient(110deg,#e1e1e1,#b8b8b8)}.cover-sand{background:linear-gradient(110deg,#ececec,#c5c5c5)}.cover-art{position:absolute;inset:-40px;background:radial-gradient(ellipse at 20% 150%,rgba(255,255,255,.32) 0 43%,transparent 43.3%),radial-gradient(ellipse at 90% -40%,rgba(255,255,255,.25) 0 48%,transparent 48.3%);transform:rotate(-6deg)}.cover-image .cover-art{display:none}.page-cover>button{position:absolute;right:20px;bottom:15px;padding:7px 10px;border-radius:6px;background:#ffffffd9;font-size:11px;opacity:0}.page-cover:hover>button{opacity:1}.page-content{position:relative;max-width:780px;margin:auto;padding:64px 48px 32px}.page-content.has-cover{padding-top:24px}.page-icon-row{position:relative;margin-bottom:5px}.has-cover.has-page-icon .page-icon-row{margin-top:-56px;margin-bottom:6px}.no-page-icon .page-icon-row{margin:0}.no-page-icon .icon-picker{top:34px}.big-page-icon{display:grid;place-items:center;width:64px;height:64px;font-size:48px;border-radius:8px;position:relative;color:#a4a4a4;line-height:1}.big-page-icon:hover{background:var(--surface-soft)!important}.page-meta-actions{display:flex;gap:6px;margin:8px 0 10px}.page-meta-actions button{font-size:11px;color:#979797;padding:4px 5px;border-radius:4px}.page-title{display:block;field-sizing:content;min-height:1.15em;font-size:30px;line-height:1.15;font-weight:650;letter-spacing:-1px;border:0;padding:0;width:100%;resize:none;background:transparent;outline:none!important;border-radius:0;overflow:hidden}.page-subtitle{font-size:11px;color:#a1a1a1;display:flex;align-items:center;gap:6px;margin-top:12px}.tiny-dot{width:4px;height:4px;border-radius:50%;background:#a3a3a3}.page-divider{height:1px;background:#ececec;margin:16px 0}.page-content .bn-container{font-family:var(--font-ui);--bn-colors-editor-text: var(--ink);--bn-colors-editor-background: #fff}.page-content .bn-editor{font-weight:var(--font-weight-body);padding:0;font-size:14px;line-height:var(--line-body);background:transparent}.page-content .bn-block-content[data-content-type=heading]{font-size:22px!important;letter-spacing:-.4px}.page-content .bn-block-outer{margin-bottom:2px;line-height:var(--line-body)}.icon-picker{position:absolute;left:0;top:70px;width:244px;padding:10px;z-index:10}.emoji-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:4px}.emoji-grid button{font-size:23px;width:34px;height:34px;border-radius:5px}.icon-picker input{font-size:11px;width:100%;margin:14px 0 6px}.icon-picker>button{font-size:11px;padding:8px 5px;color:var(--muted)}.cover-picker{background:var(--canvas);border:1px solid var(--line);padding:10px;border-radius:10px;margin-bottom:20px}.cover-choices{display:flex;gap:8px;margin-bottom:12px}.cover-choices button{width:65px;height:38px;border:1px solid #ffffff88;border-radius:6px}.cover-picker>button,.upload-button{display:inline-flex;align-items:center;gap:7px;padding:7px 9px;border:1px solid var(--line);border-radius:6px;font-size:10px;margin-right:7px;background:#fff;cursor:pointer}.upload-button input{display:none}.editor-loading,.error-card{background:var(--surface);padding:35px;border-radius:16px;box-shadow:var(--shadow-dialog);color:var(--muted);font-size:13px}.error-card{max-width:450px;line-height:var(--line-body)}.editor-loading{display:flex;flex-direction:column;align-items:center;gap:15px}.error-card button{border:1px solid var(--line);padding:8px 14px;border-radius:7px}@starting-style{.node{opacity:0;translate:var(--node-enter-x, -12px) 0;scale:.985;filter:blur(2px)}.connection,.edge-label{opacity:0}}.node-add,.floating-ribbon{opacity:1;translate:0 0;scale:1;filter:none;transition:opacity .13s var(--ease),translate .13s var(--ease),scale .13s var(--ease),filter .13s var(--ease),left var(--motion-layout) var(--ease),top var(--motion-layout) var(--ease)}.floating-ribbon{transition:opacity .13s var(--ease),translate .13s var(--ease),scale .13s var(--ease),filter .13s var(--ease)}.node-add.is-leaving,.floating-ribbon.is-leaving{opacity:0;translate:0 3px;scale:.96;filter:blur(1px);pointer-events:none}@starting-style{.node-add,.floating-ribbon{opacity:0;translate:0 3px;scale:.96;filter:blur(1px)}}.node.is-exiting{opacity:0;translate:var(--node-exit-x, 0px) var(--node-exit-y, 0px);scale:.985;filter:blur(2px);pointer-events:none}.connection{transition:opacity var(--motion-layout) var(--ease)}.connection.is-exiting,.edge-label.is-exiting{opacity:0;pointer-events:none}.connection.is-exiting .connection-hit{pointer-events:none}.node.is-exiting .fold-button{visibility:hidden}@keyframes menu-in{0%{opacity:0;translate:0 5px}to{opacity:1;translate:0 0}}@keyframes page-in{0%{opacity:0;transform:translateY(12px) scale(.99)}to{opacity:1;transform:translateY(0) scale(1)}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{transition:none!important;animation:none!important}}.page-content .bn-editor:focus-visible{outline:none!important}.canvas{background-image:radial-gradient(circle,var(--grid-dot) var(--grid-radius, .78px),transparent var(--grid-radius, .78px))}.ambient-background{position:absolute;inset:auto -20px -20px;width:calc(100% + 40px);height:var(--ambient-height);bottom:var(--ambient-bottom);opacity:var(--ambient-opacity);-webkit-mask-image:linear-gradient(to bottom,transparent,#000 28%,#000 100%);mask-image:linear-gradient(to bottom,transparent,#000 28%,#000 100%);pointer-events:none;z-index:0;contain:strict}.book-world{z-index:2}.canvas-caption{z-index:3}.selection-box{z-index:4}.topbar{background:var(--header)}.connection-line{stroke:var(--connector)}.floating-ribbon{background:var(--surface);border-color:var(--line)}.library-panel{background:var(--surface)}.library-book.current{background:var(--selection-soft)}.page-open-button,.primary-button,.canvas-tools>.active,.toast{background:var(--brand);color:var(--primary-text)}.page-open-button:hover,.primary-button:hover{background:var(--brand-hover)!important}.page-backdrop,.small-modal-backdrop,.search-backdrop{background:var(--overlay)}.node-page{border-color:var(--line)}.page-divider{background:var(--page-rule)}.page-content .bn-container{--bn-colors-editor-text: var(--ink);--bn-colors-editor-background: var(--surface)}.page-content .bn-editor{color:var(--ink)}[data-theme=dark] .edge-label{color:#b3b3b3}[data-theme=dark] .edge-label:hover,[data-theme=dark] .edge-label.chosen{background:#353535;color:var(--ink)}[data-theme=dark] .save-status,[data-theme=dark] .workspace-label,[data-theme=dark] .help-button,[data-theme=dark] .shortcut-hint,[data-theme=dark] .zoom-level,[data-theme=dark] .page-subtitle,[data-theme=dark] .page-meta-actions button{color:var(--muted)}[data-theme=dark] .eyebrow{color:#ababab}[data-theme=dark] .node{border-color:transparent}[data-theme=dark] .node-add{background:var(--selection);color:var(--canvas)}[data-theme=dark] .node-drag{color:var(--muted)}[data-theme=dark] kbd{background:var(--surface-soft);border-color:var(--line);color:var(--ink)}[data-theme=dark] .shortcut-list kbd{background:var(--surface-soft)}[data-theme=dark] .big-page-icon:hover{background:var(--surface-soft)!important}[data-theme=dark] .cover-sage{background:linear-gradient(120deg,#4b4b4b,#707070)}[data-theme=dark] .cover-clay{background:linear-gradient(110deg,#454545,#5f5f5f)}[data-theme=dark] .cover-sky{background:linear-gradient(110deg,#414141,#646464)}[data-theme=dark] .cover-lilac{background:linear-gradient(110deg,#414141,#686868)}[data-theme=dark] .cover-sand{background:linear-gradient(110deg,#484848,#676767)}[data-theme=dark] .cover-art{opacity:.35}[data-theme=dark] .page-cover>button,[data-theme=dark] .cover-picker>button,[data-theme=dark] .upload-button{background:var(--surface);color:var(--ink)}[data-theme=dark] .swatches button{color:#343434}@media(prefers-reduced-motion:reduce){.ambient-background{opacity:calc(var(--ambient-opacity) * .85)}}.canvas.has-depth-grid{background-image:none}.depth-grid{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;z-index:1;contain:strict}.workspace-sidebar{position:fixed;inset:0 auto 0 0;width:208px;z-index:35;display:flex;flex-direction:column;background:var(--sidebar);border-right:1px solid var(--line);padding:0 10px 10px}.sidebar-brand{display:flex;align-items:center;justify-content:space-between;height:48px;min-height:48px;gap:4px}.sidebar-brand .brand-lockup{font-size:20px;letter-spacing:-.8px}.sidebar-brand .icon-button{width:24px}.brand-mark{display:block;width:28px;height:28px;flex:0 0 auto}.brand-lockup{gap:6px}[data-theme=dark] .brand-mark,[data-theme=dark] .brand-wordmark{filter:brightness(0) invert(1)}[data-theme=dark] .brand-lockup{color:#fff}.sidebar-create{margin:12px 0 10px;justify-content:flex-start;padding:7px 10px;font-weight:550}.sidebar-nav,.sidebar-footer{display:flex;flex-direction:column;gap:2px}.sidebar-nav>button,.sidebar-footer>button,.sidebar-books>button{width:100%;min-height:30px;padding:6px 8px;gap:8px;justify-content:flex-start;border-radius:5px;font-size:12px;text-align:start}.sidebar-nav kbd,.nav-count{margin-left:auto;font-size:10px;color:var(--muted)}.sidebar-nav kbd{padding:1px 4px;box-shadow:none}.sidebar-section-label{margin:20px 8px 6px;font-size:10px;font-weight:600;letter-spacing:.5px;color:var(--muted)}.sidebar-books{overflow:auto;flex:1}.sidebar-books>button{margin-bottom:2px}.sidebar-books>button.current{background:var(--surface-soft);color:var(--ink)}.sidebar-books svg{flex-shrink:0;color:var(--muted)}.sidebar-books span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.sidebar-books small{margin-left:auto;color:var(--muted);font-size:10px}.sidebar-footer{padding-top:10px;color:var(--muted)}.local-workspace{display:flex;align-items:center;gap:8px;border-top:1px solid var(--line);padding:12px 4px 2px;margin-top:8px;color:var(--ink);font-size:11px}.local-workspace small{display:block;margin-top:2px;color:var(--muted);font-size:10px}.sidebar-scrim{display:none}.book-switch-button{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;min-width:0}.canvas-tools,.zoom-tools,.history-tools{padding:4px;border-radius:8px}.canvas-tools .add-idea{font-size:12px}.small-modal,.help-modal,.search-dialog,.floating-ribbon{max-width:calc(100vw - 24px)}.color-picker{width:289px;padding:12px}.palette-section+.palette-section{margin-top:8px}.palette-label{display:block;font-size:11px;margin-bottom:6px;color:var(--muted)}.swatches{display:grid;grid-template-columns:repeat(8,1fr);gap:5px}.swatches button{width:28px;height:28px;border:1px solid var(--line);border-radius:5px;padding:0}.swatches button[aria-pressed=true]{outline:1px solid var(--selection);outline-offset:2px}.swatches button:hover{box-shadow:0 0 0 2px var(--selection-soft)}.palette-hint{margin:12px 0 0;padding-top:8px;border-top:1px solid var(--line);font-size:10px;line-height:1.3;color:var(--muted)}.primary-button,.page-open-button{position:relative;overflow:hidden}.primary-button:after,.page-open-button:after{content:"";position:absolute;inset:0;background:linear-gradient(110deg,transparent 25%,var(--sheen) 50%,transparent 75%);transform:translate(-150%);pointer-events:none}.primary-button:hover:after,.page-open-button:hover:after{transform:translate(150%);transition:transform .65s ease}body{--mantine-font-family: var(--font-ui);--mantine-font-family-headings: var(--font-ui);--mantine-font-family-monospace: var(--font-ui)}body .bn-container,body .bn-container *{font-family:var(--font-ui)}body .bn-container{--bn-font-family: var(--font-ui)}body .mantine-Menu-dropdown,body .mantine-Popover-dropdown{padding:4px;border-radius:8px;font-family:var(--font-ui)}body .mantine-Menu-item{padding:6px 8px;min-height:28px;font-size:12px;line-height:1.25}body .bn-suggestion-menu{padding:4px;gap:2px}body .bn-suggestion-menu-item{min-height:32px;padding:5px 8px}body .bn-suggestion-menu-item-title{font-size:12px;line-height:1.25}body .bn-suggestion-menu-item-subtitle{font-size:10px;line-height:1.3}body .bn-toolbar{padding:4px;gap:2px}.page-content .bn-block-content{padding:2px 0}.page-content .bn-block-content[data-content-type=heading][data-level="2"]{font-size:19px!important}.page-content .bn-block-content[data-content-type=heading][data-level="3"]{font-size:16px!important}@media(min-width:900px){.app-shell.sidebar-open{--rail-width: 208px}}@media(max-width:1100px){.save-status,.shortcut-hint{display:none}.book-switch-button{max-width:210px}}@media(max-width:899px){.sidebar-scrim{display:block;position:fixed;inset:0;z-index:34;background:var(--overlay);border-radius:0}.sidebar-scrim:hover{background:var(--overlay)!important}.topbar{padding:0 10px;gap:8px}.brand-lockup{font-size:20px}.canvas-caption{top:56px;left:10px}.library-panel{left:12px;top:60px}}@media(max-width:650px){.header-right{gap:2px}.header-right .outline-button,.topbar>.book-switch{display:none}.bottom-left{display:flex;left:12px;bottom:62px}.bottom-left .shortcut-hint{display:none}.canvas-tools{left:12px;transform:none}.history-tools{display:flex;position:fixed;right:12px;bottom:62px}.bottom-right{right:12px;gap:4px}.page-backdrop{padding:10px}.node-page{height:calc(100vh - 20px)}.page-content{padding:40px 30px 24px}.page-title{font-size:26px}.page-crumb span{max-width:160px}.help-modal{padding:20px}.shortcut-list{gap:7px}.shortcut-list>div{font-size:11px;gap:8px}.shortcut-list kbd{min-width:120px;font-size:9px}}body .bn-container{--bn-colors-menu-text: var(--ink);--bn-colors-menu-background: var(--surface);--bn-colors-hovered-background: var(--surface-soft);--bn-colors-hovered-text: var(--ink);--bn-colors-tooltip-background: var(--surface-soft);--bn-colors-tooltip-text: var(--ink);--bn-colors-border: var(--line);--bn-colors-shadow: #00000018;--bn-border: 1px solid var(--line);--bn-shadow-medium: var(--shadow-panel)}body .bn-mantine .bn-suggestion-menu{padding:4px}body .bn-mantine .bn-suggestion-menu-item{height:auto;min-height:32px;padding:5px 8px;border-radius:5px}body .bn-mantine .bn-suggestion-menu-label{padding:5px 8px;font-size:10px;line-height:1.25;color:var(--muted)}body .bn-mantine .bn-mt-suggestion-menu-item-title{font-size:12px;line-height:1.25}body .bn-mantine .bn-mt-suggestion-menu-item-subtitle{font-size:10px;line-height:1.3;color:var(--muted)}body .bn-mantine .bn-mt-suggestion-menu-item-section[data-position=left]{padding:4px;margin-right:7px}body .bn-mantine .bn-toolbar{min-height:30px;padding:4px}@media(max-width:430px){.floating-ribbon .selection-count{display:none}.brand-lockup{font-size:18px}.topbar{gap:4px}}.current-book-title{display:flex;align-items:center;gap:8px;font-size:12px;font-weight:550;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:440px}.sidebar-section-label{display:flex;justify-content:space-between}@media(max-width:1100px){.current-book-title{max-width:240px}}.edge-label,.edge-label:hover,.edge-label.chosen,[data-theme=dark] .edge-label,[data-theme=dark] .edge-label:hover,[data-theme=dark] .edge-label.chosen{background:transparent;color:var(--ink);font-size:12px;font-weight:450;padding:2px 4px;cursor:text;overflow-wrap:anywhere;white-space:pre-wrap;text-align:center;text-shadow:none;-webkit-text-stroke:3px var(--connector-text-halo);paint-order:stroke fill}.edge-inline{display:grid}.edge-inline textarea,.edge-input-mirror{grid-area:1 / 1;font:inherit;line-height:inherit;white-space:pre-wrap;overflow-wrap:anywhere;min-width:0;padding:0;margin:0}.edge-input-mirror{visibility:hidden}.edge-inline textarea{width:100%;height:100%;resize:none;overflow:hidden;background:transparent;color:inherit;border:0;text-align:center;text-shadow:inherit;-webkit-text-stroke:inherit;paint-order:stroke fill;outline:none;border-radius:0}.edge-inline:focus-within{box-shadow:0 2px 0 var(--selection)}.edge-placement{position:absolute;transform:translate(-50%);z-index:8;display:flex;align-items:center;gap:2px;padding:4px;background:var(--surface);border:1px solid var(--line);border-radius:8px;box-shadow:var(--shadow-panel)}.edge-placement>button{height:28px;padding:0 8px;font-size:11px;border-radius:4px}.edge-placement>button[aria-pressed=true]{background:var(--surface-soft);color:var(--ink)}.sidebar-theme-switch{position:relative;isolation:isolate;display:flex;gap:2px;padding:3px;margin:8px 0 0;border:1px solid var(--line);border-radius:7px;background:var(--surface-soft)}.sidebar-theme-switch:before{content:"";position:absolute;left:3px;top:3px;bottom:3px;width:calc((100% - 10px)/2);border-radius:4px;background:var(--surface);box-shadow:var(--shadow-sm);transform:translate(calc(var(--theme-index) * (50% + 2px)));transition:transform .21s var(--ease);pointer-events:none}.sidebar-theme-switch>button{position:relative;flex:1;min-width:0;height:28px;padding:0 3px;gap:0;font-size:10px;border-radius:4px;color:var(--muted);background:transparent;transition:flex .21s var(--ease),color .13s}.sidebar-theme-switch>button svg{flex-shrink:0}.sidebar-theme-switch>button span{max-width:0;opacity:0;overflow:hidden;white-space:nowrap;transform:translate(-3px);margin-left:0;transition:max-width .21s var(--ease),opacity .13s,transform .21s var(--ease),margin .21s var(--ease)}.sidebar-theme-switch>button[aria-pressed=true]{flex:2;color:var(--ink)}.sidebar-theme-switch>button[aria-pressed=true] span{max-width:48px;opacity:1;transform:translate(0);margin-left:5px}.sidebar-theme-switch>button:hover{color:var(--ink);background:transparent}.page-icon-art{display:inline-flex;align-items:center;justify-content:center;filter:grayscale(1);animation:page-silhouette-reveal .18s var(--ease) both}@keyframes page-silhouette-reveal{0%{opacity:0;transform:translateY(6px) rotate(-14deg) scale(.8)}to{opacity:1;transform:none}}@media(prefers-reduced-motion:reduce){.sidebar-theme-switch:before,.sidebar-theme-switch>button,.sidebar-theme-switch>button span,.page-indicator{transition:none}.page-icon-art{animation:none}.node:hover .page-indicator,.node:focus-within .page-indicator{transform:translateY(-50%) rotate(-16deg)}}.edge-width-handle{position:absolute;right:calc(-30px / var(--view-zoom));top:50%;transform:translateY(-50%);width:calc(26px / var(--view-zoom));height:calc(28px / var(--view-zoom));padding:0;border-radius:calc(6px / var(--view-zoom));border:calc(1px / var(--view-zoom)) solid var(--line);cursor:ew-resize;touch-action:none;background:var(--surface);color:var(--ink);box-shadow:var(--shadow-sm)}.edge-width-handle svg{width:calc(16px / var(--view-zoom));height:calc(16px / var(--view-zoom));pointer-events:none}.edge-width-handle:hover:not(:disabled),.edge-width-handle:focus-visible{background:var(--brand);color:var(--primary-text);border-color:var(--brand)}.edge-placement>.icon-button{width:28px;padding:0}.node,.node-title,.node-title-text{cursor:grab}.node.drag-source{opacity:.3;box-shadow:none}.drag-origin{position:absolute;pointer-events:none;border-radius:var(--radius-node);border:1px dashed var(--selection);background:var(--selection-soft);opacity:.45}.node-drag-ghost{position:absolute;left:0;top:0;z-index:12;pointer-events:none;padding:10px 14px;border-radius:var(--radius-node);font-size:14px;line-height:1.25;opacity:.78;box-shadow:var(--shadow-panel);overflow-wrap:anywhere}.drag-caption{position:absolute;top:calc(100% + 8px);left:0;min-width:180px;max-width:300px;padding:5px 8px;border-radius:5px;background:var(--surface);color:var(--ink);font-size:11px;line-height:1.25;box-shadow:var(--shadow-sm)}.canvas-tools>.icon-button.active:hover:not(:disabled){background:var(--brand-hover);color:var(--primary-text);box-shadow:0 0 0 1px color-mix(in srgb,var(--brand) 18%,transparent)}.node-dragging,.node-dragging .node,.node-dragging .node-title,.node-dragging .node-title-text{cursor:grabbing}.canvas.box-selecting{cursor:crosshair}.resize-guides{position:absolute;inset:0;pointer-events:none;z-index:8}.resize-guides svg{position:absolute;overflow:visible;width:1px;height:1px}.resize-guides path{fill:none;stroke:var(--ink);stroke-width:1.2;vector-effect:non-scaling-stroke}.resize-guides .snap-edge{stroke-dasharray:4 4}.snap-reference{position:absolute;border-radius:var(--radius-node);box-shadow:0 0 0 1px var(--selection),var(--node-hover-glow)}.sidebar-books>button{cursor:grab;touch-action:none}.sidebar-books>button:active{cursor:grabbing}.sidebar-books>button.book-drag-placeholder{opacity:.35;box-shadow:inset 0 2px var(--ink);background:var(--selection-soft)}.book-drag-ghost{position:fixed;display:flex;align-items:center;gap:8px;padding:6px 8px;min-height:30px;z-index:200;pointer-events:none;opacity:.88;background:var(--surface);color:var(--ink);border:1px solid var(--line);border-radius:5px;box-shadow:var(--shadow-panel);font-size:12px}.book-drag-ghost svg{flex-shrink:0}.book-drag-ghost span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.book-drag-ghost small{margin-left:auto;color:var(--muted);font-size:10px}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}.node-add,[data-theme=dark] .node-add{width:24px;height:24px;padding:0;gap:4px;border-radius:6px;border:1px solid var(--line);background:var(--surface);color:var(--ink);box-shadow:var(--shadow-sm);white-space:nowrap;overflow:visible}.node-add.has-shortcut{width:64px;padding:0 6px}.node-add kbd{display:inline-flex;align-items:center;gap:2px;padding:0;border:0;background:transparent;color:var(--muted);pointer-events:none;font:inherit;font-size:9px;line-height:1;white-space:nowrap}.node-add:hover,.node-add:hover kbd{color:var(--primary-text)}.node-add-right{left:calc(100% + 8px);right:auto}.node-add-left{right:calc(100% + 8px);left:auto}.node-add-below{top:calc(100% + var(--caption-space, 0px) + 8px);bottom:auto;left:50%;right:auto;transform:translate(-50%)}.fold-button.fold-left{left:auto;right:calc(100% + 8px)}.node:has(>.fold-button:not(.fold-left))>.node-add-right{left:calc(100% + 44px)}.node:has(>.fold-button.fold-left)>.node-add-left{right:calc(100% + 44px)}.node-add:before{content:"";position:absolute;inset:-4px -9px;z-index:-1}.node-add-below:before{inset:-9px -4px -4px}.floating-ribbon:before{content:"";position:absolute;top:100%;left:0;right:0;height:8px}.node-page-arrow{position:absolute;right:6px;top:50%;z-index:3;width:28px;height:28px;padding:0;border-radius:6px;background:transparent;color:inherit;box-shadow:none;border:0;cursor:pointer;opacity:0;transform:translate(-3px,-50%);pointer-events:none;transition:opacity .13s var(--ease),transform .13s var(--ease)}.node:hover .node-page-arrow,.node:focus-within .node-page-arrow{opacity:.65;transform:translateY(-50%);pointer-events:auto}.node .node-page-arrow:hover,.node .node-page-arrow:focus-visible{opacity:1;background:transparent;box-shadow:none;transform:translate(1px,calc(-50% - 1px))}.node .node-page-arrow:active{transform:translateY(-50%) scale(.93)}@media(prefers-reduced-motion:reduce){.node-page-arrow,.node-icon-window{transition:none}}.node-caption{position:absolute;left:-1px;top:calc(100% + 4px);width:calc(100% + 2px);height:16px;overflow:hidden;color:var(--muted);text-align:start;font:450 10px/16px var(--font-ui);white-space:nowrap;cursor:default}.caption-track{display:flex;width:max-content;gap:24px}.caption-track>span{flex:none}.node-caption.is-overflowing .caption-track{animation:caption-scroll var(--caption-duration) linear infinite;animation-play-state:paused}.node-caption.is-overflowing.is-in-view .caption-track{animation-play-state:running}.node-caption.is-overflowing.is-in-view:hover .caption-track,.node-caption.is-overflowing.is-in-view:focus .caption-track{animation-play-state:paused}@keyframes caption-scroll{to{transform:translate(calc(var(--caption-sign,-1) * var(--caption-distance)))}}.node-caption{cursor:text}.node-caption.is-editing{overflow:visible}.node-caption input{display:block;width:100%;height:16px;padding:0;margin:0;font:inherit;color:var(--ink);background:transparent;border:0;border-radius:0;outline:none!important;box-shadow:none}@media(prefers-reduced-motion:reduce){.node-caption.is-overflowing .caption-track{animation:none;display:block;width:100%}.node-caption .caption-track>span:first-child{display:block;overflow:hidden;text-overflow:ellipsis}.node-caption .caption-track>span+span{display:none}}.tool-shift-hint{position:absolute;right:calc(100% + 10px);top:50%;transform:translateY(-50%);display:flex;align-items:center;gap:3px;white-space:nowrap;font:500 10px/1 var(--font-ui);color:var(--muted);pointer-events:none}.tool-shift-hint.is-held{color:var(--ink)}@media(max-width:900px){.canvas-tools{left:68px;transform:none}}.page-loading{animation:page-content-in .13s var(--ease)}.page-loading .page-top{color:var(--muted);font-size:12px}.page-loading .page-scroll{overflow:hidden}.skeleton-content{width:100%}.skeleton-block{position:relative;overflow:hidden;background:var(--surface-soft);border-radius:5px;height:12px}.skeleton-block:after{content:"";position:absolute;inset:0;transform:translate(-100%);opacity:.35;background:linear-gradient(90deg,transparent,var(--sheen),transparent);animation:skeleton-sweep 1.4s ease-in-out infinite alternate}.skeleton-icon{width:54px;height:54px;border-radius:12px;margin-bottom:24px}.skeleton-title{width:65%;height:30px;margin-bottom:14px}.skeleton-subtitle{width:44%;height:10px}.skeleton-paragraph{display:grid;gap:12px;margin-bottom:26px}.skeleton-paragraph .skeleton-block:nth-child(2){width:92%}.skeleton-paragraph .skeleton-block:last-child{width:72%}.skeleton-card{height:86px;width:100%;margin-bottom:26px}.skeleton-cover{height:140px;border-radius:0}.node-page:not(.page-loading)>.page-scroll{animation:page-content-in .16s var(--ease)}@keyframes skeleton-sweep{to{transform:translate(100%)}}@keyframes page-content-in{0%{opacity:0}to{opacity:1}}.book-title-anchor{position:relative;display:flex;align-items:center;gap:6px;min-width:0}.book-icon{display:inline-flex;align-items:center;justify-content:center;width:18px;height:18px;flex-shrink:0;font-size:16px;line-height:1}.book-icon-button{display:grid;place-items:center;width:28px;height:28px;border-radius:5px;flex-shrink:0}.book-title-anchor .current-book-title{padding:5px 2px;border-radius:4px;text-align:start}.book-title-anchor .icon-picker{top:35px}.book-title-input{font-size:12px;font-weight:550;width:clamp(120px,25vw,360px);height:28px;padding:4px 6px}.book-rename-tip{position:absolute;top:40px;left:30px;display:flex;align-items:center;gap:12px;width:max-content;max-width:220px;padding:10px 12px;border:1px solid var(--line);border-radius:8px;color:var(--ink);background:var(--surface);box-shadow:var(--shadow-panel);font-size:11px;animation:book-tip-in .16s var(--ease);z-index:20}.book-rename-tip:before{content:"";position:absolute;top:-5px;left:20px;width:8px;height:8px;background:var(--surface);border-left:1px solid var(--line);border-top:1px solid var(--line);transform:rotate(45deg)}.book-rename-tip button{display:grid;place-items:center;padding:2px;color:var(--muted)}.book-world{animation:book-arrive .22s var(--ease);transition:opacity .19s var(--ease),filter .19s var(--ease)}.sidebar-books>button{touch-action:none;transition:opacity .19s var(--ease),translate .19s var(--ease),background .13s}@starting-style{.sidebar-books>button{opacity:0;translate:-8px 0}}.book-world.book-removing{opacity:0;filter:blur(2px);pointer-events:none}.sidebar-books>button.book-removing{opacity:0;translate:-12px 0;pointer-events:none}.confirm-backdrop{padding-top:0;animation:book-arrive .13s var(--ease)}.confirm-delete{animation:book-tip-in .16s var(--ease)}.delete-symbol{display:grid;place-items:center;width:38px;height:38px;border-radius:10px;color:var(--danger);background:color-mix(in srgb,var(--danger) 9%,transparent)}@keyframes book-arrive{0%{opacity:0}to{opacity:1}}@keyframes book-tip-in{0%{opacity:0;transform:translateY(5px) scale(.98)}to{opacity:1;transform:none}}@media(max-width:900px){.topbar>.book-switch{display:block;min-width:0}.book-title-anchor .current-book-title{max-width:160px}}.book-title-anchor{gap:4px}.book-icon-button{width:24px;height:26px}.book-title-anchor .current-book-title,.book-name-editor{font:550 12px/1.25 var(--font-ui);letter-spacing:normal;max-width:440px}.book-name-editor{position:relative;display:inline-grid;min-width:70px}.book-name-editor>span{visibility:hidden;padding:5px 2px;white-space:pre;overflow:hidden}.book-name-editor .book-title-input{position:absolute;inset:0;width:100%;height:100%;margin:0;padding:5px 2px;border:0;border-radius:0;background:transparent;color:inherit;font:inherit;letter-spacing:inherit;outline:none!important;box-shadow:none!important;border-bottom:1px solid color-mix(in srgb,var(--ink) 14%,transparent)}@media(max-width:1100px){.book-name-editor{max-width:240px}}@media(max-width:900px){.book-name-editor{max-width:160px}}.anonymous-avatar{width:28px;height:28px;flex-shrink:0;display:grid;place-items:center;border-radius:50%;border:1px solid var(--line);color:var(--muted);background:var(--surface-soft)}.icon-picker .emoji-grid{grid-template-columns:repeat(6,minmax(0,1fr));gap:2px;max-height:222px;overflow-y:auto;scrollbar-width:thin;padding:2px 0}.icon-picker .emoji-grid button{width:100%;height:32px;min-width:0;padding:0;font-size:21px;display:grid;place-items:center;border-radius:4px}.icon-picker .emoji-grid button[aria-pressed=true]{background:var(--selection-soft);box-shadow:inset 0 0 0 1px var(--selection)}.icon-picker input:not([type=file]){margin:8px 0;height:28px}.icon-picker-actions{display:flex;gap:4px;border-top:1px solid var(--line);padding-top:6px}.icon-picker-actions button{flex:1;gap:5px;font-size:11px;height:28px;padding:3px 4px;border-radius:4px}.icon-upload-error{color:var(--danger);font-size:11px;line-height:1.4;margin:2px 0 8px}.uploaded-icon{display:block;object-fit:contain;flex-shrink:0;-webkit-user-select:none;user-select:none;border-radius:2px}.book-title-anchor{min-width:0}.current-book-title{min-width:0;text-overflow:clip}.scrolling-book-name{display:block;flex:1;min-width:0;overflow:hidden;white-space:nowrap;text-overflow:clip!important}.scrolling-book-name .book-name-track{display:block;width:max-content;max-width:none;overflow:visible;white-space:nowrap;text-overflow:clip}.scrolling-book-name.overflows .book-name-track{animation:book-name-sway var(--name-duration) linear infinite alternate;animation-play-state:paused}.scrolling-book-name.overflows.in-view .book-name-track{animation-play-state:running}.book-drag-ghost .book-name-track,.book-drag-placeholder .book-name-track{animation-play-state:paused!important}.sidebar-books small{flex-shrink:0}.sidebar-books>button.current{background:color-mix(in srgb,var(--ink) 12%,var(--sidebar));box-shadow:inset 3px 0 var(--ink);font-weight:600}.sidebar-books>button.current:hover{background:color-mix(in srgb,var(--ink) 16%,var(--sidebar))}.sidebar-books>button.current svg,.sidebar-books>button.current small{color:var(--ink)}@keyframes book-name-sway{0%,15%{transform:translate(0)}85%,to{transform:translate(calc(-1 * var(--name-travel)))}}.page-caption-row{display:flex;align-items:center;gap:7px}.page-caption{flex:1;min-width:0;padding:0;margin:0;border:0;border-radius:0;background:transparent;box-shadow:none!important;outline:none!important;color:inherit;font:inherit;line-height:inherit}.page-caption::placeholder{color:inherit;opacity:.8}@media(prefers-reduced-motion:reduce){.scrolling-book-name.overflows .book-name-track{transform:none}}.lightbulb-emoji{display:inline-block;filter:sepia(.65) saturate(2.4) hue-rotate(-12deg) brightness(.95)}.page-indicator.is-lightbulb{--page-silhouette-opacity: .56;--page-silhouette-hover-opacity: .72}.node .page-indicator.is-lightbulb:hover{opacity:.85}.icon-picker input.icon-search{margin:0 0 8px;border:0;border-bottom:1px solid var(--line);border-radius:0;background:transparent;outline:none;box-shadow:none;padding:4px 2px}.icon-picker input.icon-search:focus{border-bottom-color:var(--muted);outline:none;box-shadow:none}.icon-search-empty{color:var(--muted);font-size:11px;margin:12px 0}.cover-control{position:relative;display:inline-flex}.cover-control>button{display:inline-flex;align-items:center;gap:6px}.cover-control .cover-picker{position:absolute;top:calc(100% + 8px);left:0;width:244px;max-width:calc(100vw - 36px);z-index:30;padding:10px;margin:0;background:var(--surface);border-radius:8px}.cover-picker:before{content:"";position:absolute;width:8px;height:8px;top:-5px;left:22px;transform:rotate(45deg);background:var(--surface);border-top:1px solid var(--line);border-left:1px solid var(--line)}.cover-picker .cover-choices{display:grid;grid-template-columns:repeat(5,1fr);gap:5px;margin:0 0 8px}.cover-picker .cover-choices button{width:100%;height:30px;padding:0}.cover-picker .cover-choices button[aria-pressed=true]{outline:1px solid var(--selection);outline-offset:2px}.cover-upload-hint{font-size:11px;line-height:1.4;color:var(--muted);margin:8px 0}.cover-picker-actions{display:flex;gap:4px;border-top:1px solid var(--line);padding-top:6px}.cover-picker-actions button,.cover-picker .cover-reposition-action{display:inline-flex;align-items:center;justify-content:center;gap:5px;font-size:11px;height:28px;padding:3px 4px;border:0;border-radius:4px;background:transparent;margin:0}.cover-picker-actions button{flex:1}.cover-picker .cover-reposition-action{width:100%;margin-top:4px}.page-cover{overflow:visible}.cover-visual{position:absolute;inset:0;overflow:hidden}.cover-visual>img{width:100%;height:100%;object-fit:cover;display:block;-webkit-user-select:none;user-select:none}.cover-control.on-cover{position:absolute;right:20px;bottom:14px;z-index:12}.cover-control.on-cover>button{background:var(--surface);color:var(--ink);padding:6px 8px;border-radius:5px;font-size:11px;opacity:0;transition:opacity .13s}.page-cover:hover .on-cover>button,.page-cover:focus-within .on-cover>button,.on-cover>button[aria-expanded=true]{opacity:1}.on-cover .cover-picker{left:auto;right:0}.on-cover .cover-picker:before{left:auto;right:22px}.repositioning .cover-visual{cursor:grab;touch-action:none}.repositioning .cover-visual:active{cursor:grabbing}.cover-position-controls{position:absolute;right:14px;bottom:12px;display:flex;align-items:center;gap:6px;padding:4px;background:var(--surface);color:var(--ink);border-radius:6px;box-shadow:var(--shadow-menu);font-size:11px;z-index:13}.cover-position-controls>span{padding:0 5px;color:var(--muted)}.cover-position-controls button{padding:4px 7px;border-radius:4px}.cover-position-controls button:last-child{background:var(--ink);color:var(--surface)}.table-cell-palette{padding:6px}.cell-palette-heading{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:6px}.cell-palette-utilities{display:flex;align-items:center;gap:6px}.table-cell-palette .cell-neutral{display:inline-flex;align-items:center;justify-content:center;width:24px;height:24px;border:1px solid var(--line);border-radius:4px;padding:0}.cell-palette-heading .popover-label{margin:0}.table-cell-palette .cell-reset{display:inline-flex;align-items:center;justify-content:center;width:24px;height:24px;padding:4px;border-radius:4px;color:var(--muted)}.table-cell-palette .cell-reset:hover{color:var(--ink);background:var(--surface-soft)}.bn-table-cell-handle .color-square{width:16px;height:16px;border-radius:3px}.page-body-editor .bn-editor [data-content-type=table] .tableWrapper{padding:0;overflow:visible;max-width:100%;min-width:0;width:min(100%,calc(var(--page-table-width,100%) + 1px))}.page-body-editor .bn-editor [data-content-type=table] table{width:var(--page-table-width,auto)!important}.page-body-editor .tableWrapper-inner{overflow:auto;max-height:min(65dvh,640px);scrollbar-width:none}.page-body-editor .tableWrapper-inner::-webkit-scrollbar{display:none}.page-table-chrome{position:absolute;inset:0;pointer-events:none;-webkit-user-select:none;user-select:none;z-index:21}.table-overflow-fade{position:absolute;pointer-events:none;transition:opacity .12s ease}.table-overflow-fade.at-left,.table-overflow-fade.at-right{top:0;bottom:0;width:min(24px,12%)}.table-overflow-fade.at-top,.table-overflow-fade.at-bottom{left:0;right:0;height:min(24px,12%)}.table-overflow-fade.at-left{left:0;background:linear-gradient(to right,var(--surface),transparent)}.table-overflow-fade.at-right{right:0;background:linear-gradient(to left,var(--surface),transparent)}.table-overflow-fade.at-top{top:0;background:linear-gradient(to bottom,var(--surface),transparent)}.table-overflow-fade.at-bottom{bottom:0;background:linear-gradient(to top,var(--surface),transparent)}.table-overlay-scrollbar{position:absolute;pointer-events:none;touch-action:none;border-radius:5px;outline:none;opacity:0;transition:opacity .12s ease}.tableWrapper:hover .table-overlay-scrollbar,.table-overlay-scrollbar:focus-visible,.table-overlay-scrollbar.is-dragging{opacity:1;pointer-events:auto}.table-overlay-scrollbar.is-x{left:20px;right:20px;height:12px;cursor:ew-resize}.table-overlay-scrollbar.is-y{top:20px;bottom:20px;width:12px;cursor:ns-resize}.table-overlay-scrollbar.at-top{top:0}.table-overlay-scrollbar.at-bottom{bottom:0}.table-overlay-scrollbar.at-left{left:0}.table-overlay-scrollbar.at-right{right:0}.table-overlay-thumb{position:absolute;display:block;border-radius:3px;background:color-mix(in srgb,var(--muted) 68%,transparent);transition:background-color .1s ease;pointer-events:none}.table-overlay-scrollbar.is-x .table-overlay-thumb{left:0;top:2px;height:3px}.table-overlay-scrollbar.is-y .table-overlay-thumb{top:0;left:2px;width:3px}.table-overlay-scrollbar.at-bottom .table-overlay-thumb{top:auto;bottom:2px}.table-overlay-scrollbar.at-right .table-overlay-thumb{left:auto;right:2px}.table-overlay-scrollbar:is(:hover,:focus-visible,.is-dragging) .table-overlay-thumb{background:var(--muted)}.table-overlay-scrollbar:focus-visible{outline:2px solid var(--selection);outline-offset:-1px}.table-corner-add{position:absolute;pointer-events:auto;display:grid;place-items:center;width:16px;height:16px;padding:0;border:1px solid var(--line);border-radius:4px;color:var(--muted);background:var(--surface);box-shadow:var(--shadow-sm)}.table-corner-add:hover,.table-corner-add:focus-visible{color:var(--ink);background:var(--surface-soft)}.table-corner-add:after{content:"";position:absolute;inset:-4px}.table-corner-add.at-top-left{top:-8px;left:-8px}.table-corner-add.at-top-right{top:-8px;right:-8px}.table-corner-add.at-bottom-left{bottom:-8px;left:-8px}.table-corner-add.at-bottom-right{bottom:-8px;right:-8px}body .table-corner-menu{padding:4px;background:var(--surface);color:var(--ink);border:1px solid var(--line);border-radius:7px;box-shadow:var(--shadow-panel)}body .table-corner-menu [role=menuitem]{min-height:28px;padding:5px 8px;font-size:12px;color:var(--ink)}body .table-corner-menu [role=menuitem]:hover{background:var(--surface-soft)}@media(hover:none){.tableWrapper:focus-within .table-overlay-scrollbar{opacity:1;pointer-events:auto}}@media(prefers-reduced-motion:reduce){.table-overlay-thumb,.table-overlay-scrollbar,.table-overflow-fade{transition:none}}.book-world.is-resizing .connection-line,.book-world.is-resizing .connection-label-line,.book-world.is-resizing .edge-label,.book-world.is-resizing .node{transition:none}.canvas-tools .add-idea{padding-left:4px;padding-right:8px}.canvas-tools .ribbon-separator{margin-inline:3px}.shortcuts-backdrop{padding:12px}.shortcuts-backdrop .help-modal{width:620px;max-height:min(82vh,780px);padding:22px}.shortcut-list kbd{flex:0 0 180px;min-width:0;white-space:normal}.shortcut-list>div{align-items:center}@media(max-width:600px){.shortcuts-backdrop .help-modal{padding:18px 14px}.shortcut-list kbd{flex-basis:125px}}.page-presence.is-closing .page-backdrop{animation:page-backdrop-out .17s ease both;pointer-events:none}.page-presence.is-closing .node-page{animation:page-out .17s var(--ease) both}@keyframes page-out{to{opacity:0;transform:translateY(8px) scale(.985)}}@keyframes page-backdrop-out{to{opacity:0}}.workspace-sidebar{transform:translate(-100%);opacity:0;visibility:hidden;transition:transform .24s cubic-bezier(.22,1,.36,1),opacity .18s ease,visibility 0s .24s}.sidebar-open .workspace-sidebar{transform:translate(0);opacity:1;visibility:visible;transition-delay:0s}.sidebar-scrim{opacity:0;visibility:hidden;pointer-events:none;transition:opacity .2s ease,visibility 0s .24s}.sidebar-open .sidebar-scrim{opacity:1;visibility:visible;pointer-events:auto;transition-delay:0s}.topbar,.canvas-tools,.bottom-left{transition:left .24s cubic-bezier(.22,1,.36,1)}.brand-space{display:block;flex:0 0 142px;height:28px}.brand-transition{position:fixed;top:10px;left:14px;z-index:36;pointer-events:none;transform:translate(44px);transition:transform .28s cubic-bezier(.22,1.12,.36,1)}.brand-transition .brand-lockup{font-size:20px}@media(max-width:899px){.brand-transition{transform:translate(34px)}}@media(prefers-reduced-motion:reduce){.workspace-sidebar,.sidebar-scrim,.topbar,.canvas-tools,.bottom-left,.brand-transition{transition:none!important}}.shortcuts-backdrop .shortcut-list>div:first-child{padding-right:30px}.page-view-controls{display:flex;gap:2px;padding-left:5px;border-left:1px solid var(--line)}.has-open-page .topbar{z-index:110}.page-presence{position:fixed;inset:48px 0 0;z-index:100;pointer-events:none;animation:page-presence-in .22s var(--ease) both}.page-presence .page-backdrop{inset:48px 0 0;padding:0;background:transparent;-webkit-backdrop-filter:none;backdrop-filter:none;pointer-events:none}.page-presence .page-backdrop:before{content:"";position:absolute;inset:0;background:var(--overlay);-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px);opacity:1;pointer-events:auto;transition:opacity .24s var(--ease)}.page-presence.is-docked .page-backdrop:before{opacity:0;pointer-events:none;-webkit-backdrop-filter:none;backdrop-filter:none}.page-presence .node-page{position:fixed;top:calc(48px + (100dvh - 48px)/20);left:50%;transform:translate(-50%);width:min(880px,calc(100vw - 32px));height:calc((100dvh - 48px)*.9);pointer-events:auto;animation:none;transition:left .24s var(--ease),top .24s var(--ease),width .24s var(--ease),height .24s var(--ease),transform .24s var(--ease),border-radius .24s var(--ease),box-shadow .24s var(--ease)}.page-presence.is-docked .node-page{left:calc(100% - var(--page-panel-width));top:48px;transform:none;width:var(--page-panel-width);height:calc(100dvh - 48px);border-radius:0;border-width:0 0 0 1px;box-shadow:-8px 0 28px #00000012}.page-presence.is-docked .page-content{padding:38px 28px 28px}.page-presence.is-docked .page-content.has-cover{padding-top:24px}.page-presence.is-docked .page-title{font-size:27px}.page-presence.is-docked .page-crumb{gap:5px}.page-presence.is-docked .page-crumb>span:last-child,.page-presence.is-docked .page-crumb>svg:nth-last-child(2){display:none}.page-presence.is-docked .page-top{padding-left:16px;padding-right:10px;gap:8px}.page-presence.is-docked .page-actions{flex-shrink:0;gap:1px}.page-presence .page-scroll{min-width:0}.page-presence .page-content{transition:padding .24s var(--ease)}.page-presence .page-body-editor{min-height:140px}.page-presence .page-scroll{animation:page-switch-in .18s var(--ease)}.page-panel-resize{position:absolute;inset:0 auto 0 0;width:8px;z-index:40;cursor:col-resize;touch-action:none;outline:none}.page-panel-resize:after{content:"";position:absolute;left:1px;top:0;bottom:0;width:2px;background:var(--selection);opacity:0;transition:opacity .13s}.page-panel-resize:hover:after,.page-panel-resize:focus-visible:after,.is-resizing .page-panel-resize:after{opacity:.7}.page-presence.is-resizing .node-page{transition:none}.resizing-page-panel{cursor:col-resize;-webkit-user-select:none;user-select:none}@media(min-width:901px){.canvas-tools{left:calc(50% + var(--rail-width)/2 - var(--page-panel-space,0px)/2)}}.bottom-right{right:calc(16px + var(--page-panel-space,0px));transition:right .24s var(--ease)}.page-presence.is-closing{animation:page-presence-out .22s var(--ease) both}.page-presence.is-closing .page-backdrop,.page-presence.is-closing .node-page{animation:none;pointer-events:none}.page-presence.is-closing .page-backdrop:before{pointer-events:none}@keyframes page-presence-in{0%{opacity:0}to{opacity:1}}@keyframes page-presence-out{to{opacity:0}}@keyframes page-switch-in{0%{opacity:0;translate:0 6px}to{opacity:1;translate:0 0}}@media(max-width:600px){.page-presence.is-docked .page-content{padding-inline:20px}.page-presence.is-docked .page-title{font-size:24px}.has-page-panel .bottom-right{right:8px;bottom:5px;z-index:10}.canvas-tools{left:68px}}@media(prefers-reduced-motion:reduce){.page-presence,.page-presence .node-page,.page-presence .page-scroll{animation:none!important}.page-presence .node-page,.page-presence .page-backdrop:before,.page-presence .page-content,.bottom-right{transition:none!important}}.page-presence.is-closing .node-page{animation:page-frame-out .22s var(--ease) both}@keyframes page-frame-out{to{translate:12px 0}}.page-presence.is-docked .page-meta-actions .cover-picker{left:-100px}.page-presence.is-docked .page-meta-actions .cover-picker:before{left:122px}.resizing-page-panel .canvas-tools,.resizing-page-panel .bottom-right{transition:none}.panel-empty-content{display:grid;place-items:center;flex:1;padding:32px;text-align:center;color:var(--muted);animation:panel-empty-in .18s var(--ease) both}.panel-empty-content>div{margin-top:-80px}.panel-empty-art{margin-bottom:16px}.panel-empty-content h2{margin:0 0 7px;font-size:16px;font-weight:550;color:var(--ink)}.panel-empty-content p{margin:0;font-size:12px;line-height:1.5}.page-presence.is-docked .node-page>.page-scroll{transform-origin:right center;animation:page-from-right .26s var(--ease) both}.page-presence.is-switching-to-empty .node-page>.page-scroll{animation:page-to-right .2s var(--ease) both}.page-presence.is-switching-to-page .node-page>.page-scroll{animation:page-switch-away .1s ease both}@keyframes page-from-right{0%{opacity:0;transform:perspective(1100px) translate(24px) rotateY(3deg)}to{opacity:1;transform:none}}@keyframes page-to-right{to{opacity:0;transform:perspective(1100px) translate(24px) rotateY(3deg)}}@keyframes page-switch-away{to{opacity:0}}@keyframes panel-empty-in{0%{opacity:0}to{opacity:1}}.has-open-page .brand-transition{z-index:111}.brand-transition .brand-lockup{color:var(--ink)}@media(prefers-reduced-motion:reduce){.panel-empty-content,.page-presence.is-docked .node-page>.page-scroll{animation:none!important}}.create-page-button{display:inline-flex;align-items:center;gap:6px;margin-top:18px;padding:7px 12px;border-radius:6px;background:var(--brand);color:var(--primary-ink, #fff);font-size:12px}.create-page-button:hover{background:var(--brand-hover)}[data-theme=dark] .create-page-button{color:var(--canvas)}.page-presence.is-docked.is-closing .node-page{animation:page-panel-out .22s var(--ease) both}@keyframes page-panel-out{to{transform:translate(28px);opacity:0}}@media(prefers-reduced-motion:reduce){.page-presence.is-docked.is-closing .node-page{animation:none}}.confirm-backdrop{z-index:140;padding:20px}.confirm-delete{max-width:100%}.trash-backdrop{z-index:125;padding:12px;animation:panel-empty-in .16s var(--ease)}.trash-backdrop.is-closing{opacity:0;transition:opacity .18s var(--ease);pointer-events:none}.trash-dialog{width:620px;max-height:min(82vh,780px);padding:22px;animation:book-tip-in .18s var(--ease)}.trash-dialog h2{margin:0 32px 8px 0;font-size:18px}.trash-dialog .trash-description{margin:0 30px 20px 0;font-size:12px}.trash-list{display:flex;flex-direction:column;gap:6px}.trash-row{display:flex;align-items:center;gap:10px;padding:10px;border:1px solid var(--line);border-radius:7px;transition:opacity .16s var(--ease),transform .16s var(--ease)}.trash-row.is-leaving{opacity:0;transform:translate(12px)}.trash-row>svg{color:var(--muted);flex-shrink:0}.trash-item-text{flex:1;min-width:0}.trash-item-text strong{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:12px;font-weight:550}.trash-item-text small{display:block;margin-top:4px;color:var(--muted);font-size:10px}.trash-row button{display:inline-flex;gap:5px;align-items:center;padding:6px;border-radius:5px;font-size:11px}.trash-empty{text-align:center;color:var(--muted);padding:45px 10px}.trash-empty h3{color:var(--ink);font-size:14px;font-weight:550}.trash-empty p,.trash-error{font-size:12px}.trash-error{color:var(--danger)!important}.share-menu{min-width:210px}.share-menu button:disabled{cursor:not-allowed;opacity:.45}@media(prefers-reduced-motion:reduce){.trash-backdrop,.trash-dialog,.trash-row{animation:none!important;transition:none!important}}.page-start-prompt:hover:not(:disabled){background:transparent}.confirm-backdrop.is-closing{opacity:0;transition:opacity .14s var(--ease);pointer-events:none}.confirm-backdrop.is-closing .confirm-delete{transform:translateY(4px) scale(.98);transition:transform .14s var(--ease)}@media(prefers-reduced-motion:reduce){.confirm-backdrop,.confirm-delete{animation:none!important;transition:none!important}}.ambient-smoke{transform:none!important;transition:none}.ambient-smoke>canvas{position:absolute;inset:0;width:100%;height:100%}.ambient-fallback{position:absolute;inset:0;background:linear-gradient(110deg,var(--ambient-start),var(--ambient-middle),var(--ambient-end),var(--ambient-mint),var(--ambient-gold),var(--ambient-rose));background-size:220% 180%;-webkit-mask-image:radial-gradient(ellipse 48% 61% at 8% 88%,#000a,transparent 94%),radial-gradient(ellipse 39% 48% at 60% 66%,#0008,transparent 92%),radial-gradient(ellipse 33% 76% at 98% 93%,#000a,transparent 95%);mask-image:radial-gradient(ellipse 48% 61% at 8% 88%,#000a,transparent 94%),radial-gradient(ellipse 39% 48% at 60% 66%,#0008,transparent 92%),radial-gradient(ellipse 33% 76% at 98% 93%,#000a,transparent 95%);transform-origin:50% 0%;animation:ambient-fallback-drift 12s linear infinite,ambient-fallback-color 41s ease-in-out infinite alternate}.ambient-smoke[data-renderer=fluid] .ambient-fallback{display:none}@keyframes ambient-fallback-drift{0%{transform:translateY(8%) scale(1.08);opacity:0}18%{opacity:1}75%{opacity:1}to{transform:translateY(-18%) scale(.84);opacity:0}}@keyframes ambient-fallback-color{0%{background-position:18% 67%}23%{background-position:78% 34%}49%{background-position:42% 89%}76%{background-position:91% 61%}to{background-position:28% 12%}}.ambient-smoke[data-motion=paused] .ambient-fallback{animation-play-state:paused}@media(prefers-reduced-motion:reduce){.ambient-fallback{animation:none}}.page-start-prompt{position:absolute;inset:0;width:100%;min-height:24px;z-index:2;padding:0;border:0;background:transparent;cursor:text}.page-body-editor[data-empty-page=true] .bn-block-content:after{content:var(--empty-page-label, "Click to start typing")!important}.edge-label.is-selected{outline:1px dashed var(--selection);outline-offset:3px}.bulk-edge-placement .selection-count{white-space:nowrap;padding:0 6px}.connection-hit:focus{outline:none}.connection:has(.connection-hit:focus-visible) .connection-line{stroke:var(--selection);stroke-width:2.4}.edge-curved-label{cursor:text;pointer-events:auto;outline:none}.edge-curved-label text{font-family:var(--font-ui);font-size:12px;font-weight:450;fill:var(--ink);stroke:var(--connector-text-halo);stroke-width:3px;stroke-linejoin:round;paint-order:stroke fill}.edge-curved-label.is-selected text,.edge-curved-label:focus-visible text{text-decoration:underline;text-decoration-color:var(--selection)}.connector-text-path{transition:d var(--motion-layout) var(--ease)}.book-world.is-resizing .connector-text-path{transition:none}.edge-placement{max-width:calc(100vw - 24px)}.edge-placement .ribbon-separator{height:20px;margin:0 3px}.page-body-editor{position:relative}.page-block-controls{position:absolute;z-index:25;display:flex;gap:0;opacity:0;pointer-events:none;transition:opacity .1s ease}.page-block-controls[data-visible=true],.page-block-controls:focus-within{opacity:1;pointer-events:auto}.page-block-controls button{width:22px;height:24px;min-width:0;padding:0;display:grid;place-items:center;border-radius:4px;color:var(--muted);background:transparent}.page-block-controls button[data-block-grip]{cursor:grab}.page-block-controls button[data-block-grip]:active{cursor:grabbing}.page-body-editor .bn-block-content{border-radius:4px;box-shadow:5px 0 0 transparent,-5px 0 0 transparent;transition:background-color .1s ease,box-shadow .1s ease,font-size .18s var(--ease)}.page-body-editor .bn-block-outer{border-radius:4px;transition:margin .2s,background-color .1s ease,box-shadow .1s ease}.page-body-editor [data-page-block-selected] .bn-block-content,.page-body-editor .bn-block-content[data-content-type=divider].ProseMirror-selectednode,.page-body-editor .ProseMirror-selectednode>.bn-block-content[data-content-type=divider]{background-color:var(--selection-soft)!important;box-shadow:5px 0 0 var(--selection-soft),-5px 0 0 var(--selection-soft)}.page-body-editor [data-page-block-selected]:has(>.bn-block>.bn-block-group){background-color:var(--selection-soft);box-shadow:5px 0 0 var(--selection-soft),-5px 0 0 var(--selection-soft)}.page-body-editor [data-page-block-selected]:has(>.bn-block>.bn-block-group) .bn-block-content{background-color:transparent!important;box-shadow:none}.page-body-editor [data-page-block-selected]:has(>.bn-block>.bn-block-group) .bn-block:has(>.bn-react-node-view-renderer>[data-content-type=callout]){background-color:transparent}.page-body-editor [data-page-block-selected] .bn-block-group>.bn-block-outer:before{border-left-color:transparent!important}.page-body-editor .bn-block-content[data-content-type=divider]>hr{outline:none!important;border-radius:0}@media(prefers-reduced-motion:reduce){.page-body-editor :is(.bn-block-content,.bn-block-outer){transition:none}}.page-body-editor[data-block-selection=true] .ProseMirror-selectednode{outline:none!important}.page-body-editor[data-block-selection=true] ::selection{background:transparent}.is-block-selecting,.is-block-selecting *{-webkit-user-select:none!important;user-select:none!important;cursor:crosshair!important}.page-block-marquee{position:fixed;z-index:230;pointer-events:none;background:var(--selection-soft);border:1px solid var(--selection);border-radius:2px}.page-block-toolbar{position:fixed;z-index:220;display:flex;align-items:center;gap:2px;padding:4px;background:var(--surface);color:var(--ink);border:1px solid var(--line);border-radius:8px;box-shadow:var(--shadow-panel);flex-wrap:wrap;animation:block-tools-in .1s ease}.page-block-toolbar button{display:grid;place-items:center;width:26px;height:28px;padding:0;border-radius:4px}.page-block-toolbar select{font:inherit;font-size:11px;color:var(--ink);background:var(--surface);border:0;max-width:90px;height:28px}.block-selection-count{color:var(--muted);font-size:11px;white-space:nowrap;padding:0 5px}.page-block-drag-preview{font-weight:var(--font-weight-body);pointer-events:none;z-index:240;position:fixed;left:-10000px;top:0;padding:0;background:transparent;color:var(--ink);opacity:.8;font-family:var(--font-ui)}@keyframes block-tools-in{0%{opacity:0}to{opacity:1}}@media(prefers-reduced-motion:reduce){.page-block-controls{transition:none}.page-block-toolbar{animation:none}}.page-body-editor .bn-block-content:is([data-content-type=bulletListItem],[data-content-type=numberedListItem]):before{font-weight:600}.page-body-editor .bn-block-content[data-content-type=bulletListItem]:before{-webkit-text-stroke:.35px currentColor}.page-body-editor .bn-block-content[data-content-type=checkListItem]>div:has(>input){display:flex;align-items:center;height:1.4em}.page-body-editor .bn-block-content[data-content-type=checkListItem]>div>input{appearance:none;width:17px;height:17px;flex:0 0 17px;padding:0;min-width:17px;min-height:17px;margin:0 7px 0 4px;border:2px solid var(--muted);border-radius:3px;background:transparent;cursor:pointer;display:grid;place-content:center;transition:background-color .1s ease,border-color .1s ease}.page-body-editor .bn-block-content[data-content-type=checkListItem]>div>input:after{content:"";width:8px;height:5px;border:solid var(--primary-text);border-width:0 0 2px 2px;transform:translateY(-1px) rotate(-45deg);opacity:0}.page-body-editor .bn-block-content[data-content-type=checkListItem]>div>input:hover{border-color:var(--ink)}.page-body-editor .bn-block-content[data-content-type=checkListItem]>div>input:checked{background:var(--brand);border-color:var(--brand)}.page-body-editor .bn-block-content[data-content-type=checkListItem]>div>input:checked:after{opacity:1}.page-body-editor .bn-block-content[data-content-type=checkListItem]>div>input:focus-visible{outline:2px solid var(--selection);outline-offset:3px}.page-body-editor .bn-block-content[data-content-type=checkListItem][data-checked=true]>.bn-inline-content{opacity:.55;text-decoration:line-through}@media(prefers-reduced-motion:reduce){.page-body-editor .bn-block-content[data-content-type=checkListItem]>div>input{transition:none}}.page-block-drop-line{position:fixed;z-index:230;height:2px;background:var(--selection);pointer-events:none}.is-block-dragging [data-page-block-selected]{opacity:.35}.page-presence.is-docked .page-content{padding-left:52px}@media(max-width:650px){.page-presence .page-content{padding-left:52px}}.page-block-drag-preview .bn-block-content:is([data-content-type=bulletListItem],[data-content-type=numberedListItem]):before{content:var(--page-drag-marker)!important}.page-content .bn-block-group .bn-block-group>.bn-block-outer:not([data-prev-depth-changed]):before{border-left:1px solid var(--bn-colors-side-menu);pointer-events:none;transition:none}.page-content .bn-block:has(>.bn-block-content>div>.bn-toggle-wrapper)>.bn-block-group{display:block!important;margin-left:12px;padding-left:20px;interpolate-size:allow-keywords;height:auto;overflow:clip;overflow-clip-margin:5px;opacity:1;visibility:inherit;transition:height .18s var(--ease),opacity .18s var(--ease),visibility 0s}.page-content .bn-block:has(>.bn-block-content>div>.bn-toggle-wrapper[data-show-children=false])>.bn-block-group{display:block!important;height:0;opacity:0;visibility:hidden;interactivity:inert;pointer-events:none;transition:height .18s var(--ease),opacity .18s var(--ease),visibility 0s .18s}.page-content .bn-block-content:has(>div>.bn-toggle-wrapper)>div{width:100%}.page-content .bn-toggle-wrapper{align-items:flex-start;width:100%;gap:4px}.page-content .bn-toggle-wrapper>.bn-inline-content{flex:1;min-width:0}.page-content .bn-toggle-button{flex:0 0 28px;width:28px;height:28px;padding:3px;font:inherit;margin-block-start:calc((1lh - 28px)/2);align-self:flex-start;align-items:center;justify-content:center;color:var(--muted);border-radius:4px;transition:transform .18s var(--ease),background-color .1s,color .1s}.page-content .bn-toggle-button>svg{width:22px;height:22px;margin-left:-2px}.page-content .bn-toggle-button:focus-visible{outline:2px solid var(--accent);outline-offset:1px}.page-content .bn-toggle-button:hover{color:var(--ink)}.page-content .bn-toggle-add-block-button{font-size:13px;line-height:1.4;margin-left:32px;padding:3px 5px;color:var(--muted)}.page-content .bn-toggle-empty{interpolate-size:allow-keywords;height:auto;overflow:clip;opacity:1;visibility:inherit;transition:height .18s var(--ease),opacity .18s var(--ease),visibility 0s}.page-content .bn-toggle-empty[data-shown=false]{height:0;opacity:0;visibility:hidden;pointer-events:none;transition:height .18s var(--ease),opacity .18s var(--ease),visibility 0s .18s}@media(prefers-reduced-motion:reduce){.page-content .bn-toggle-empty,.page-content .bn-toggle-empty[data-shown=false],.page-content .bn-toggle-button,.page-content .bn-block:has(>.bn-block-content>div>.bn-toggle-wrapper)>.bn-block-group{transition:none!important}.page-content .bn-toggle-add-block-button{animation:none}}.page-body-editor .bn-block:has(>.bn-react-node-view-renderer>[data-content-type=callout]){--callout-background: transparent;margin:4px 0;padding:12px;border:1px solid color-mix(in srgb,var(--ink) 24%,transparent);border-radius:7px;background:var(--callout-background);transition:background-color .12s ease,border-color .12s ease}.page-body-editor [data-content-type=callout]{background:transparent}.page-callout-row{display:flex;width:100%;align-items:flex-start;gap:8px;position:relative}.page-callout-text{flex:1;min-width:0}.page-callout-row:has(.callout-emoji:not(.is-empty))>.page-callout-text{position:relative;top:1px}.page-callout-icon{flex:0 0 24px;margin-block-start:calc((1lh - 24px)/2)}.callout-emoji{display:grid;place-items:center;width:24px;height:24px;padding:0;font-size:20px;border-radius:4px}.page-callout-icon:has(.is-empty){width:0;flex-basis:0}.page-callout-icon:has(.is-empty) .callout-emoji{position:absolute;right:20px;top:-8px;font-size:14px;background:var(--surface)}.page-callout-row:has(.is-empty){gap:0}.page-callout-actions{position:absolute;right:-8px;top:-8px}.page-callout-actions button{width:24px;height:24px;display:grid;place-items:center;padding:0;background:var(--surface);border-radius:4px}.page-callout-actions,.callout-emoji.is-empty{opacity:0;transition:opacity .1s ease}.bn-block:has(>.bn-react-node-view-renderer>[data-content-type=callout]):is(:hover,:focus-within)>.bn-react-node-view-renderer :is(.page-callout-actions,.callout-emoji.is-empty){opacity:1}.page-body-editor .bn-block:has(>.bn-react-node-view-renderer>[data-content-type=callout])>.bn-block-group{margin-left:32px}body .callout-icon-picker{width:280px;padding:8px;background:var(--surface);color:var(--ink);border:1px solid var(--line)}.callout-icon-picker input{width:100%;padding:6px 8px;font:inherit;font-size:12px;margin-bottom:6px}.callout-icon-picker .emoji-grid{max-height:200px;overflow:auto}.callout-icon-picker .emoji-grid button{font-size:22px}.callout-remove-icon{width:100%;padding:6px;margin-top:6px;font-size:12px}body .callout-color-menu{background:var(--surface);color:var(--ink);border:1px solid var(--line)}.callout-color-swatch{display:block;width:16px;height:16px;border:1px solid var(--line);border-radius:3px;background:var(--callout-background,transparent)}.page-body-editor [data-content-type=quote] blockquote,.page-block-drag-preview [data-content-type=quote] blockquote{color:inherit;border-left:3px solid var(--ink);padding:2px 0 2px 14px;font-size:1.04em;font-style:normal;line-height:1.5}.page-body-editor [data-content-type=quote]{color:var(--ink)}.page-block-type-select{max-width:160px}.page-block-toolbar .page-block-type-select button{width:auto;display:flex;min-width:0;padding:4px 7px;font-size:12px}.page-block-type-select .bn-select{max-height:min(420px,65vh);overflow-y:auto;background:var(--surface);color:var(--ink);border:1px solid var(--line);box-shadow:var(--shadow-panel)}.page-block-type-select .bn-select button{width:100%;text-align:start}@media(prefers-reduced-motion:reduce){.page-body-editor .bn-block:has(>.bn-react-node-view-renderer>[data-content-type=callout]),.page-callout-actions,.callout-emoji.is-empty{transition:none}}.page-body-editor .bn-block:has(>.bn-react-node-view-renderer>[data-content-type=callout][data-background-color=gray]),.callout-color-swatch[data-color=gray],.page-body-editor [data-content-type][data-background-color=gray]{--callout-background:rgba(120,120,130,.09)}[data-theme=dark] .page-body-editor .bn-block:has(>.bn-react-node-view-renderer>[data-content-type=callout][data-background-color=gray]),[data-theme=dark] .callout-color-swatch[data-color=gray],[data-theme=dark] .page-body-editor [data-content-type][data-background-color=gray]{--callout-background:rgba(180,180,195,.1)}.page-body-editor .bn-block:has(>.bn-react-node-view-renderer>[data-content-type=callout][data-background-color=brown]),.callout-color-swatch[data-color=brown],.page-body-editor [data-content-type][data-background-color=brown]{--callout-background:rgba(146,102,72,.12)}[data-theme=dark] .page-body-editor .bn-block:has(>.bn-react-node-view-renderer>[data-content-type=callout][data-background-color=brown]),[data-theme=dark] .callout-color-swatch[data-color=brown],[data-theme=dark] .page-body-editor [data-content-type][data-background-color=brown]{--callout-background:rgba(180,140,110,.14)}.page-body-editor .bn-block:has(>.bn-react-node-view-renderer>[data-content-type=callout][data-background-color=red]),.callout-color-swatch[data-color=red],.page-body-editor [data-content-type][data-background-color=red]{--callout-background:rgba(215,78,78,.11)}[data-theme=dark] .page-body-editor .bn-block:has(>.bn-react-node-view-renderer>[data-content-type=callout][data-background-color=red]),[data-theme=dark] .callout-color-swatch[data-color=red],[data-theme=dark] .page-body-editor [data-content-type][data-background-color=red]{--callout-background:rgba(215,110,110,.15)}.page-body-editor .bn-block:has(>.bn-react-node-view-renderer>[data-content-type=callout][data-background-color=orange]),.callout-color-swatch[data-color=orange],.page-body-editor [data-content-type][data-background-color=orange]{--callout-background:rgba(216,145,83,.14)}[data-theme=dark] .page-body-editor .bn-block:has(>.bn-react-node-view-renderer>[data-content-type=callout][data-background-color=orange]),[data-theme=dark] .callout-color-swatch[data-color=orange],[data-theme=dark] .page-body-editor [data-content-type][data-background-color=orange]{--callout-background:rgba(224,165,112,.14)}.page-body-editor .bn-block:has(>.bn-react-node-view-renderer>[data-content-type=callout][data-background-color=yellow]),.callout-color-swatch[data-color=yellow],.page-body-editor [data-content-type][data-background-color=yellow]{--callout-background:rgba(201,179,65,.15)}[data-theme=dark] .page-body-editor .bn-block:has(>.bn-react-node-view-renderer>[data-content-type=callout][data-background-color=yellow]),[data-theme=dark] .callout-color-swatch[data-color=yellow],[data-theme=dark] .page-body-editor [data-content-type][data-background-color=yellow]{--callout-background:rgba(207,193,103,.13)}.page-body-editor .bn-block:has(>.bn-react-node-view-renderer>[data-content-type=callout][data-background-color=green]),.callout-color-swatch[data-color=green],.page-body-editor [data-content-type][data-background-color=green]{--callout-background:rgba(107,166,139,.14)}[data-theme=dark] .page-body-editor .bn-block:has(>.bn-react-node-view-renderer>[data-content-type=callout][data-background-color=green]),[data-theme=dark] .callout-color-swatch[data-color=green],[data-theme=dark] .page-body-editor [data-content-type][data-background-color=green]{--callout-background:rgba(144,195,173,.13)}.page-body-editor .bn-block:has(>.bn-react-node-view-renderer>[data-content-type=callout][data-background-color=blue]),.callout-color-swatch[data-color=blue],.page-body-editor [data-content-type][data-background-color=blue]{--callout-background:rgba(112,158,213,.14)}[data-theme=dark] .page-body-editor .bn-block:has(>.bn-react-node-view-renderer>[data-content-type=callout][data-background-color=blue]),[data-theme=dark] .callout-color-swatch[data-color=blue],[data-theme=dark] .page-body-editor [data-content-type][data-background-color=blue]{--callout-background:rgba(145,179,219,.14)}.page-body-editor .bn-block:has(>.bn-react-node-view-renderer>[data-content-type=callout][data-background-color=purple]),.callout-color-swatch[data-color=purple],.page-body-editor [data-content-type][data-background-color=purple]{--callout-background:rgba(169,136,200,.14)}[data-theme=dark] .page-body-editor .bn-block:has(>.bn-react-node-view-renderer>[data-content-type=callout][data-background-color=purple]),[data-theme=dark] .callout-color-swatch[data-color=purple],[data-theme=dark] .page-body-editor [data-content-type][data-background-color=purple]{--callout-background:rgba(185,159,211,.14)}.page-body-editor .bn-block:has(>.bn-react-node-view-renderer>[data-content-type=callout][data-background-color=pink]),.callout-color-swatch[data-color=pink],.page-body-editor [data-content-type][data-background-color=pink]{--callout-background:rgba(211,137,167,.14)}[data-theme=dark] .page-body-editor .bn-block:has(>.bn-react-node-view-renderer>[data-content-type=callout][data-background-color=pink]),[data-theme=dark] .callout-color-swatch[data-color=pink],[data-theme=dark] .page-body-editor [data-content-type][data-background-color=pink]{--callout-background:rgba(216,155,180,.14)}.page-body-editor .bn-block:has(>.bn-react-node-view-renderer>[data-content-type=callout])>.bn-block-group>.bn-block-outer:before{border-left:none!important}.page-body-editor .bn-block:has(>.bn-react-node-view-renderer>[data-content-type=callout][data-emoji=""])>.bn-block-group{margin-left:0}.page-body-editor [data-content-type=quote],.page-body-editor [data-content-type][data-background-color]{background:var(--callout-background,transparent)}.page-body-editor [data-content-type=callout][data-background-color]{background:transparent}.page-body-editor [data-page-block-selected]:has(>.bn-block>.bn-react-node-view-renderer>[data-content-type=callout]){background:transparent;box-shadow:none}.page-body-editor [data-page-block-selected]>.bn-block:has(>.bn-react-node-view-renderer>[data-content-type=callout]){background:var(--selection-soft)!important;border-color:var(--selection)}.page-body-editor [data-page-block-selected]>.bn-block:has(>.bn-react-node-view-renderer>[data-content-type=callout]) .bn-block-content{background:transparent!important;box-shadow:none}.page-body-editor [data-callout-title-selected] .page-callout-text{background:var(--selection-soft);border-radius:4px;box-shadow:4px 0 0 var(--selection-soft),-4px 0 0 var(--selection-soft)}.page-body-editor [data-style-type=backgroundColor]{border-radius:3px;padding-block:1px;box-decoration-break:clone;-webkit-box-decoration-break:clone}.page-text-color-icon{font-size:18px;line-height:1;border-bottom:2px solid currentColor}.page-body-editor [data-style-type=backgroundColor][data-value=gray]{background-color:#8c919b38}.page-body-editor [data-style-type=backgroundColor][data-value=brown]{background-color:#ad795345}.page-body-editor [data-style-type=backgroundColor][data-value=red]{background-color:#e9696945}.page-body-editor [data-style-type=backgroundColor][data-value=orange]{background-color:#eba1544d}.page-body-editor [data-style-type=backgroundColor][data-value=yellow]{background-color:#e6cc4852}.page-body-editor [data-style-type=backgroundColor][data-value=green]{background-color:#66bf8c47}.page-body-editor [data-style-type=backgroundColor][data-value=blue]{background-color:#6da5eb47}.page-body-editor [data-style-type=backgroundColor][data-value=purple]{background-color:#af89e447}.page-body-editor [data-style-type=backgroundColor][data-value=pink]{background-color:#e58bb647}.page-body-editor .bn-block:has(>.bn-block-content[data-background-color]){background:transparent}.edge-label,[data-theme=dark] .edge-label{color:var(--connector-label)}.edge-curved-label text{fill:var(--connector-label)}.edge-label{transition:opacity var(--motion-layout) var(--ease),left var(--motion-layout) var(--ease),top var(--motion-layout) var(--ease),color .1s ease,filter .1s ease}.edge-curved-label text{transition:fill .1s ease,filter .1s ease}.edge-label.is-hovered,[data-theme=dark] .edge-label.is-hovered{color:var(--connector-label-hover);filter:drop-shadow(0 0 2px color-mix(in srgb,var(--connector-label-hover) 30%,transparent))}.edge-curved-label.is-hovered text{fill:var(--connector-label-hover);filter:drop-shadow(0 0 2px color-mix(in srgb,var(--connector-label-hover) 30%,transparent))}.page-top:has(.page-navigation){gap:10px;flex-shrink:0}.page-top:has(.page-navigation) .page-actions{flex-shrink:0}.page-navigation{display:flex;align-items:center;gap:4px;min-width:0;flex:1;font-size:11px}.page-navigation button{height:28px;padding:0 7px;border-radius:5px;font:inherit;color:var(--muted);white-space:nowrap;transition:background-color .13s var(--ease),color .13s var(--ease)}.page-navigation button:hover:not(:disabled){background:var(--surface-soft);color:var(--ink)}.page-navigation button:disabled{color:var(--muted);opacity:.45;cursor:default}.page-navigation button:focus-visible{outline:2px solid var(--selection);outline-offset:-2px}.page-nav-path{display:flex;align-items:center;gap:3px;overflow-x:auto;min-width:0;width:100%;scrollbar-width:none;overscroll-behavior-x:contain}.page-nav-path::-webkit-scrollbar{display:none}.page-nav-separator{flex-shrink:0;color:var(--muted)}.page-navigation .page-nav-crumb{display:block;flex-shrink:0;max-width:190px;overflow:hidden;text-overflow:ellipsis}.page-navigation .page-nav-crumb[aria-current=page]{color:var(--ink);font-weight:600}.page-navigation .page-nav-crumb[aria-expanded=true]{background:var(--surface-soft);color:var(--ink)}.page-nav-menu{position:fixed;z-index:260;display:flex;flex-direction:column;padding:0;color:var(--ink);background:transparent;border:0;border-radius:0;box-shadow:none;font:12px/1.3 var(--font-ui);overflow:visible;animation:page-nav-menu-in .13s var(--ease)}.page-nav-menu button{font:inherit;min-height:30px;border-radius:5px;padding:5px 7px;color:var(--muted);justify-content:flex-start}.page-nav-menu button:hover:not(:disabled),.page-nav-menu button:focus-visible{background:var(--surface-soft);color:var(--ink)}.page-nav-menu button:focus-visible{outline:2px solid var(--selection);outline-offset:-2px}.page-nav-menu button:disabled{opacity:.45;cursor:default}.page-nav-back,.page-nav-branch{flex:0 0 30px;justify-content:center!important}.page-nav-menu-list{overflow-y:auto;min-height:0;overscroll-behavior:contain;scrollbar-width:thin;scrollbar-color:var(--accent) transparent}.page-nav-row{display:flex;gap:2px;border-radius:5px}.page-nav-open{flex:1;min-width:0}.page-nav-open>span{flex:1;text-align:start;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.page-nav-open>svg{flex-shrink:0}.page-nav-menu .page-nav-open[aria-current=page]{color:var(--ink);font-weight:600;background:var(--selection-soft)}.page-nav-empty{padding:8px;color:var(--muted);margin:0}@keyframes page-nav-menu-in{0%{opacity:0;transform:translateY(-3px)}to{opacity:1;transform:translateY(0)}}@media(prefers-reduced-motion:reduce){.page-nav-menu{animation:none}}.page-top:has(.page-navigation){flex-wrap:nowrap}.page-navigation .page-nav-crumb{max-width:min(190px,100%)}.page-presence.is-docked .page-top:has(.page-navigation){gap:6px}@media(max-width:600px){.page-top:has(.page-navigation){gap:6px;padding-inline:10px}.page-top .page-actions{gap:1px}}@media(prefers-reduced-motion:reduce){.page-navigation button{transition:none}}@media(max-width:899px){.page-view-controls{display:none}.page-presence.is-centered .node-page{top:48px;left:0;transform:none;width:100vw;height:calc(100dvh - 48px);border-radius:0;border-width:0}}.page-nav-wheel{position:relative;flex-shrink:0;isolation:isolate}.page-nav-wheel:before{content:"";position:absolute;top:var(--wheel-center,50%);left:0;right:0;height:34px;transform:translateY(-50%);background:var(--surface-soft);border-radius:5px;box-shadow:inset 0 1px color-mix(in srgb,var(--ink) 5%,transparent),inset 0 -1px color-mix(in srgb,var(--ink) 5%,transparent);pointer-events:none;z-index:-1}.page-nav-menu-list{height:var(--wheel-height,180px);padding-block:calc((var(--wheel-height,180px) - 36px)/2);scroll-snap-type:y proximity;scrollbar-width:none;-webkit-mask-image:linear-gradient(to bottom,transparent,#000 16%,#000 84%,transparent);mask-image:linear-gradient(to bottom,transparent,#000 16%,#000 84%,transparent)}.page-nav-menu-list::-webkit-scrollbar{display:none}.page-nav-row{height:36px;align-items:center;scroll-snap-align:center;transform:perspective(480px) rotateX(var(--wheel-tilt,0deg)) scale(var(--wheel-scale,1));opacity:var(--wheel-opacity,1);transform-origin:center}.page-nav-row button{min-height:30px;max-height:34px}.page-nav-row[data-wheel-origin=true] .page-nav-open:not(:disabled){color:var(--ink);font-weight:600}.page-nav-menu .page-nav-open[aria-current=page]{background:transparent}@media(prefers-reduced-motion:reduce){.page-nav-row{transform:none}.page-nav-menu-list{scroll-snap-type:none}}.page-nav-menu{-webkit-user-select:none;user-select:none}.page-nav-menu button{text-shadow:0 1px 3px var(--surface),0 -1px 3px var(--surface)}.page-nav-menu button:hover:not(:disabled),.page-nav-menu button:focus-visible{background:transparent}.page-nav-menu button:focus-visible{outline:1px solid var(--selection)}.page-nav-menu .page-nav-back{position:absolute;left:0;top:50%;transform:translateY(-50%);width:26px;min-height:28px;padding:4px;z-index:1}.page-nav-menu.has-back .page-nav-wheel{margin-left:28px}.page-nav-branch{opacity:0;transition:opacity .13s var(--ease)}.page-nav-row:hover .page-nav-branch,.page-nav-row:focus-within .page-nav-branch{opacity:1}@media(hover:none){.page-nav-branch{opacity:1}}@media(prefers-reduced-motion:reduce){.page-nav-branch{transition:none}}.page-nav-menu .page-nav-open[data-has-page=false]{color:var(--muted)}.page-nav-menu .page-nav-open[data-has-page=false]:hover,.page-nav-menu .page-nav-open[data-has-page=false]:focus-visible{color:var(--ink)}.book-navigation{flex:0 1 auto;min-width:0}.book-navigation .page-nav-path{padding:0}.book-back-button{display:grid;place-items:center;flex-shrink:0;width:28px;height:28px;border-radius:5px;color:var(--muted)}.book-back-button:disabled{opacity:.45;cursor:default;background:transparent}.page-nav-open:disabled{opacity:.4;cursor:default}.workspace-sidebar .sidebar-footer{margin-top:auto}.current-book-title .book-switch-chevron{flex-shrink:0;margin-left:5px;color:var(--muted);transition:transform .15s var(--ease)}.current-book-title[aria-expanded=true] .book-switch-chevron{transform:rotate(180deg)}.page-nav-menu.book-switch-menu{padding:6px;border:1px solid var(--line);border-radius:12px;background:var(--surface);box-shadow:var(--shadow-panel);overflow:hidden}.book-switch-heading{display:flex;align-items:center;justify-content:space-between;padding:6px 8px 10px;color:var(--muted);font-size:11px;font-weight:550}.book-switch-heading>span:last-child{font-variant-numeric:tabular-nums}.book-switch-menu .page-nav-wheel:before{display:none}.book-switch-menu .page-nav-menu-list{height:auto;max-height:var(--book-list-height,360px);padding:0;scroll-snap-type:none;-webkit-mask-image:none;mask-image:none;scrollbar-width:thin}.book-switch-menu .page-nav-menu-list::-webkit-scrollbar{display:block;width:4px}.book-switch-menu .page-nav-menu-list::-webkit-scrollbar-thumb{border-radius:4px;background:var(--line)}.book-switch-menu .page-nav-row{height:auto;margin-bottom:3px;transform:none;opacity:1}.book-switch-menu .page-nav-row:last-child{margin-bottom:0}.book-switch-menu .page-nav-open{display:flex;align-items:center;gap:10px;width:100%;min-height:62px;max-height:none;padding:10px;border:1px solid transparent;border-radius:8px;text-shadow:none;color:var(--ink);font-weight:450;transition:background .13s var(--ease),border-color .13s var(--ease)}.book-switch-menu .page-nav-open:hover:not(:disabled),.book-switch-menu .page-nav-open:focus-visible{background:var(--surface-soft)}.book-switch-menu .page-nav-open[aria-current=page]{background:var(--surface-soft);border-color:var(--line)}.book-switch-menu .page-nav-open>.book-choice-icon{flex:0 0 32px;width:32px;height:32px;display:grid;place-items:center;overflow:visible;border:1px solid var(--line);background:var(--surface);border-radius:8px}.book-switch-menu .page-nav-open>.book-choice-copy{display:flex;flex-direction:column;gap:5px;min-width:0}.book-choice-title{font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.book-choice-detail{color:var(--muted);font-size:10px;font-weight:450}.book-switch-menu .page-nav-open>.book-choice-status{flex:0 0 auto;display:flex;align-items:center;gap:3px;font-size:9px;font-weight:550;padding:3px 5px;border-radius:4px;background:var(--surface);color:var(--ink)}.book-switch-menu .page-nav-open>.book-choice-go{flex:0 0 auto;display:flex;color:var(--muted);opacity:0}.book-choice-go svg{transform:rotate(-90deg)}.book-switch-menu .page-nav-open:hover>.book-choice-go,.book-switch-menu .page-nav-open:focus-visible>.book-choice-go{opacity:1}@media(prefers-reduced-motion:reduce){.current-book-title .book-switch-chevron,.book-switch-menu .page-nav-open{transition:none}}.sidebar-book-card{margin:8px 0 12px;min-width:0}.sidebar-book-cover{position:relative;height:156px;border-radius:12px;background:radial-gradient(ellipse at 5% 10%,#497c80 0,transparent 58%),radial-gradient(ellipse at 90% 30%,#67528d 0,transparent 65%),linear-gradient(145deg,#25464c,#252735 65%);background-size:cover;background-position:center;box-shadow:inset 0 0 0 1px #ffffff16;color:#fff}.sidebar-book-cover:after{content:"";position:absolute;inset:0;background:linear-gradient(transparent 25%,#090c12bf);border-radius:inherit;pointer-events:none}.sidebar-book-orbit{position:absolute;inset:0;overflow:hidden;border-radius:inherit;pointer-events:none}.sidebar-book-orbit:before,.sidebar-book-orbit:after{content:"";position:absolute;width:180px;height:180px;border:1px solid #ffffff20;border-radius:50%;top:-66px;right:-38px;box-shadow:0 0 0 25px #ffffff06,0 0 0 50px #ffffff05;transform:rotate(-25deg) scaleX(.72)}.sidebar-book-orbit:after{width:9px;height:9px;top:60px;right:30px;background:#d7e9ea88;border:0;box-shadow:0 0 22px #c9e5e55a}.has-image .sidebar-book-orbit{display:none}.sidebar-book-cover .book-title-anchor{position:absolute;bottom:13px;left:10px;right:10px;z-index:2;gap:5px}.sidebar-book-cover .book-icon-button{color:#fff;background:#ffffff14;border-radius:6px;width:27px;height:29px}.sidebar-book-cover .book-navigation{flex:1}.sidebar-book-cover .current-book-title{display:flex;align-items:center;width:100%;max-width:none;color:#fff;font-size:13px;font-weight:650}.sidebar-book-cover .book-navigation .current-book-title:is(:hover,:focus-visible,[aria-expanded=true]){background:#ffffff12;color:#fff}.sidebar-book-cover .current-book-title .book-switch-chevron{color:#fff;margin-left:auto}.sidebar-book-cover .book-name-editor{color:#fff;min-width:0;flex:1}.sidebar-book-cover .book-title-input{color:#fff}.sidebar-book-cover .icon-picker{color:var(--ink);top:36px;left:-10px}.book-cover-tools{position:absolute;z-index:2;top:8px;right:8px;display:flex;gap:3px}.book-cover-tools button{display:flex;align-items:center;gap:4px;min-height:25px;padding:4px 6px;color:#fff;border-radius:5px;background:#14182070;font-size:10px;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.book-cover-tools button:hover{background:#141820b0}.book-cover-error{color:var(--danger);font-size:11px;margin:6px}.sidebar-footer .sidebar-create.primary-button{color:var(--primary-text);background:var(--brand);justify-content:center;margin:0 0 9px}.header-book-label{display:flex;align-items:center;gap:7px;min-width:0;font-size:12px}.header-book-label>span:last-child{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:300px}.header-search{position:relative;flex-shrink:1;min-width:0}.header-search-field{display:flex;align-items:center;gap:7px;width:240px;height:31px;border:1px solid var(--line);border-radius:7px;background:var(--surface);padding:0 7px;color:var(--muted)}.header-search-field input{flex:1;width:0;min-width:0;border:0;padding:0;background:transparent;outline:none;box-shadow:none;color:var(--ink);font:12px var(--font-ui)}.header-search-field>button{display:grid;place-items:center;width:22px;height:24px;padding:0;border-radius:4px}.header-search-popover{position:absolute;top:calc(100% + 8px);left:0;width:min(380px,calc(100vw - 24px));background:var(--surface);border:1px solid var(--line);border-radius:10px;box-shadow:var(--shadow-panel);overflow:hidden}.header-search-summary{padding:11px 12px;font-size:10px;color:var(--muted);border-bottom:1px solid var(--line)}.header-search-results{max-height:min(420px,calc(100dvh - 110px));overflow:auto;padding:5px;overscroll-behavior:contain}.header-search-results>button{display:flex;width:100%;gap:9px;align-items:flex-start;text-align:start;padding:9px;border-radius:6px;font-size:12px}.header-search-results>button[aria-selected=true]{background:var(--surface-soft)}.header-search-results>button>svg{flex-shrink:0;color:var(--muted);margin-top:2px}.header-search-results>button>span{flex:1;min-width:0}.header-search-results strong{display:block;font-weight:600;overflow-wrap:anywhere}.header-search-results small{display:block;color:var(--muted);font-size:10px;margin-top:4px}.search-snippet{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;color:var(--muted);font-size:11px;line-height:1.4;margin-top:5px}.header-search-results p{padding:10px;color:var(--muted);font-size:12px;line-height:1.5;margin:0}@media(max-width:700px){.header-book-label>span:last-child{max-width:110px}.topbar:has(.header-search.is-open) .header-book-label{display:none}.header-search-field{width:min(240px,calc(100vw - 150px))}.header-search-popover{position:fixed;top:47px;left:8px;right:8px;width:auto}.topbar:has(.header-search.is-open) .save-status{display:none}}.sidebar-book-cover:not(.has-image){background:var(--library-cover-background);color:var(--library-cover-ink);box-shadow:inset 0 0 0 1px var(--library-cover-border)}.sidebar-book-cover:not(.has-image):after{background:var(--library-cover-veil)}.sidebar-book-cover:not(.has-image) .current-book-title,.sidebar-book-cover:not(.has-image) .current-book-title .book-switch-chevron,.sidebar-book-cover:not(.has-image) .book-name-editor,.sidebar-book-cover:not(.has-image) .book-title-input{color:var(--library-cover-ink)}.sidebar-book-cover:not(.has-image) .book-cover-tools button{background:var(--library-cover-control);color:var(--library-cover-ink)}.sidebar-book-cover:not(.has-image) .book-cover-tools button:hover{background:var(--library-cover-control-hover)}.sidebar-book-cover:not(.has-image) .sidebar-book-orbit:before{border-color:var(--library-cover-ring)}.sidebar-book-cover:not(.has-image) .sidebar-book-orbit:after{background:var(--library-cover-orbit)}.sidebar-book-cover:not(.has-image) .sidebar-book-orbit:after{box-shadow:0 0 22px var(--library-cover-orbit-glow)}.node.central-book{padding:0;min-height:0;background:none;border:0;box-shadow:none;overflow:visible;color:var(--ink);border-radius:14px;isolation:isolate}.node.central-book:is(:hover,.selected){background:none;box-shadow:none}.book-perspective{position:absolute;inset:0;perspective:950px}.book-object{position:absolute;inset:0;transform-style:preserve-3d;transform-origin:right center;transform:rotateX(var(--book-rx,0deg)) rotateY(var(--book-ry,0deg));transition:transform .18s var(--ease)}.book-back-cover{position:absolute;inset:5px -2px 3px 8px;border-radius:4px 10px 10px 4px;background:color-mix(in srgb,var(--book-cover-color,#292a30) 78%,#000);box-shadow:inset 0 0 0 1px #ffffff18,0 12px 24px #00000025;transform:translateZ(-8px)}.book-cover{position:absolute;inset:0;display:flex;flex-direction:column;align-items:flex-start;padding:23px 24px 20px 30px;border-radius:6px 13px 13px 6px;color:var(--book-cover-ink,#eceef3);background:var(--book-cover-background,#292a30);box-shadow:inset 0 1px #fff2,inset 0 0 0 1px #ffffff12,0 5px 12px #00000020;transform:translateZ(12px)}.book-spine{position:absolute;inset:0 auto 0 0;width:14px;background:linear-gradient(90deg,#11121650,#ffffff0c 50%,#00000028 85%,transparent);border-radius:6px 0 0 6px}.book-cover-top{display:flex;align-items:center;gap:7px;color:color-mix(in srgb,var(--book-cover-ink,#eceef3) 72%,transparent)}.book-cover-top>span:last-child{font-size:8px;font-weight:550;letter-spacing:1.6px}.book-title{display:-webkit-box;-webkit-line-clamp:4;-webkit-box-orient:vertical;overflow:hidden;text-align:var(--book-text-align,left);font:650 17px/1.28 var(--font-ui);color:inherit;padding:0;margin:0;width:100%;max-width:100%;overflow-wrap:anywhere;white-space:pre-wrap}.central-book .book-title:is(:hover,:active){background:transparent!important;color:inherit;box-shadow:none}.book-title-input{width:100%;height:84px;background:#ffffff0a;border:1px solid #ffffff36;border-radius:4px;resize:none;margin:0;text-align:var(--book-text-align,left);color:inherit;font:650 16px/1.3 var(--font-ui)}.book-cover-rule{position:absolute;right:22px;bottom:24px;width:23px;height:1px;background:color-mix(in srgb,var(--book-cover-ink) 30%,transparent)}.central-book.selected .book-cover{box-shadow:inset 0 0 0 1px #ffffff26,var(--node-selected-glow)}.book-interior{position:absolute;inset:7px 0 8px 15px;border-radius:1px 8px 8px 1px;background:linear-gradient(90deg,#bfc0b6 0,#e9eae1 12%,#e8e9df 85%,#e2e3d9);box-shadow:inset 0 1px #ffffff70,1px 1px #bfc0b5,2px 2px #dadbd2;transform:translateZ(0);pointer-events:none}.book-cover{transform-origin:left center;transition:transform var(--book-close-duration,.48s) cubic-bezier(.2,.7,.2,1),box-shadow .25s;backface-visibility:hidden}.book-open-right .book-cover{transform-origin:left center;transform:translateZ(12px) rotateY(-40deg)}.book-open-left .book-cover{transform-origin:right center;transform:translateZ(12px) rotateY(40deg)}.book-open-top .book-cover{transform-origin:center bottom;transform:translateZ(12px) rotateX(-34deg)}.book-open-bottom .book-cover{transform-origin:center top;transform:translateZ(12px) rotateX(34deg)}.book-inner-light{position:absolute;inset:-8px;border-radius:14px;pointer-events:none;opacity:0;transform:translateZ(.5px);background:radial-gradient(ellipse at var(--book-light-x,65%) var(--book-light-y,50%),#fff4cfed 0,#fff3cc99 12%,#fff0bb36 27%,transparent 53%);filter:blur(9px);transition:opacity .42s var(--ease)}.book-inner-light.is-open{opacity:.85}.book-open-left{--book-light-x:10%}.book-open-top{--book-light-x:50%;--book-light-y:10%}.book-open-bottom{--book-light-x:50%;--book-light-y:90%}.book-inner-branches{position:absolute;inset:0;width:100%;height:100%;overflow:hidden;pointer-events:none;z-index:1;transform:none}.book-inner-branches path{fill:none;stroke:var(--book-inner-connector);stroke-width:1.4;stroke-linecap:round;transition:d var(--motion-layout) var(--ease),stroke .1s,stroke-width .1s}.book-inner-branches path.is-highlighted{stroke:var(--book-inner-connector-active);stroke-width:1.8}.book-port{position:absolute;display:flex;align-items:center;gap:6px;z-index:4;min-height:28px}.book-port-right{left:calc(100% + 12px);top:50%;transform:translateY(-50%)}.book-port-right.is-empty{left:calc(100% + 15px);top:50%;transform:translateY(-50%)}.book-port-left{right:calc(100% + 15px);top:50%;transform:translateY(-50%);flex-direction:row-reverse}.book-port-top{bottom:calc(100% + 15px);left:50%;transform:translate(-50%)}.book-port-bottom{top:calc(100% + 19px);left:50%;transform:translate(-50%)}.book-side-summary{display:flex;align-items:center;gap:7px}.book-port-left .book-side-summary{flex-direction:row-reverse}.book-category-count{display:grid;place-items:center;flex:none;min-width:25px;height:25px;padding:0 5px;border:1px solid var(--line);border-radius:50%;background:var(--canvas);color:var(--muted);font-size:10px;font-variant-numeric:tabular-nums;transition:color .13s,border-color .13s}.book-category-count:hover,.book-category-count:focus-visible{color:var(--ink);border-color:var(--muted)}.book-category-title{max-width:112px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;background:transparent;color:var(--muted);padding:3px 0;text-align:start;font-size:11px}.book-category-title:hover{color:var(--ink);background:transparent}.book-port-tools{position:absolute;display:flex;gap:3px;top:100%;left:0;padding:3px 0;opacity:0;pointer-events:none;transition:opacity .13s}.book-port-left .book-port-tools{left:auto;right:0}.book-port-tools button{width:24px;height:24px;border-radius:5px;display:grid;place-items:center;color:var(--muted);background:var(--canvas)}.book-port-tools button:hover{color:var(--ink);background:var(--surface-soft)}.book-port.is-empty .book-port-tools{position:static;padding:0}.central-book:is(:hover,.selected,:focus-within) .book-port.is-empty .book-port-tools,.book-port:is(:hover,:focus-within,.is-editing,.is-drop) .book-port-tools{opacity:1;pointer-events:auto}.book-port.is-drop .book-category-count,.book-port.is-drop .book-side-add{outline:1px solid var(--accent);color:var(--ink)}.book-category-input{width:135px;height:28px;padding:3px 6px;font-size:11px;background:var(--surface);color:var(--ink);border:1px solid var(--accent);border-radius:5px}.node-add-top{left:50%;top:auto;bottom:calc(100% + 44px);transform:translate(-50%)}.node-add-bottom{left:50%;top:calc(100% + var(--caption-space,0px) + 44px);transform:translate(-50%)}.node-add-beside{left:calc(100% + 8px);top:50%;transform:translateY(-50%)}.node.branch-top .fold-button{left:50%;right:auto;top:-25px;transform:translate(-50%,-50%)}.node.branch-bottom .fold-button{left:50%;right:auto;top:calc(100% + var(--caption-space,0px) + 25px);transform:translate(-50%,-50%)}@media(prefers-reduced-motion:reduce){.book-object,.book-cover,.book-inner-light,.book-inner-branches path,.book-category-count,.book-port-tools{transition:none}.book-object{transform:none}}@media(hover:none){.book-port-tools{opacity:1;pointer-events:auto}}@property --book-float-y{syntax:"<length>"; inherits:true; initial-value:0px;}.central-book{animation:book-hover-float 5s ease-in-out infinite}.book-float{position:absolute;inset:0;transform-style:preserve-3d;transform:translateY(var(--book-float-y))}@keyframes book-hover-float{0%,to{--book-float-y:0px}50%{--book-float-y:-12px}}.book-pages-layer{z-index:0;pointer-events:none}.book-cover-layer{z-index:2;pointer-events:none}.book-cover-layer .book-cover{pointer-events:auto}.book-interior:before{content:"";position:absolute;inset:18px 7px 18px 20px;background:repeating-linear-gradient(to bottom,transparent 0 17px,var(--book-rule) 17px 18px);pointer-events:none}.central-book.is-motion-paused{animation-play-state:paused}@media(prefers-reduced-motion:reduce){.central-book{animation:none;--book-float-y:0px}}.book-category-count{min-width:20px;width:20px;height:20px;padding:0;font-size:10px;color:var(--muted);border-color:color-mix(in srgb,var(--muted) 30%,transparent)}.book-port:before{content:"";position:absolute;inset:-10px -8px;z-index:-1}.book-port-right .book-port-tools{left:-2px}.central-book:is(:hover,:focus-within) .book-port-tools{opacity:1;pointer-events:auto}.book-title-group{position:relative;z-index:1;width:100%;margin:auto 0;min-width:0}.book-title-group .node-caption{position:relative;left:auto;top:auto;width:100%;margin-top:9px;color:color-mix(in srgb,var(--book-cover-ink) 75%,transparent);text-align:var(--book-text-align,left)}.book-title-group .node-caption input{color:var(--book-cover-ink);text-align:var(--book-text-align,left)}.book-title-group .caption-track{min-width:100%}.book-title-group .caption-track>span{min-width:100%;text-align:var(--book-text-align,left)}.book-palette-label{font-size:11px;color:var(--muted);margin:0 0 7px;line-height:1.25}.book-open-page{display:flex;align-items:center;gap:6px;min-height:28px;font-size:10px;color:var(--book-cover-ink);opacity:.8;padding:2px 0}.central-book .book-open-page:is(:hover,:active){color:var(--book-cover-ink);opacity:1;background:transparent;box-shadow:none}@starting-style{.node.branch-left{opacity:1;translate:0 0;scale:1;filter:none}.connection.rear-branch,.edge-label.rear-branch{opacity:1}}.sidebar-book-details{position:relative;padding:12px 4px 0}.sidebar-book-details .book-title-anchor{gap:7px;align-items:flex-start}.sidebar-book-details .book-icon-button{width:28px;height:30px;background:transparent;border:0;box-shadow:none}.sidebar-book-details .book-icon-button:is(:hover,:active){background:transparent;box-shadow:none;color:var(--ink)}.sidebar-book-details .current-book-title{flex:1;min-width:0;max-width:none;height:auto;min-height:30px;white-space:normal;overflow-wrap:anywhere;font-size:15px;font-weight:650;line-height:1.3;padding:5px 0}.sidebar-book-details .current-book-title:hover{background:transparent}.sidebar-book-details .book-name-editor{flex:1;min-width:0;font-size:15px;font-weight:650}.sidebar-book-details .book-description-input{display:block;width:100%;min-height:48px;max-height:180px;margin:9px 0 0;padding:6px;border:1px solid transparent;border-radius:6px;background:transparent;color:var(--muted);font:12px/1.5 var(--font-ui);resize:vertical;field-sizing:content;transition:background .14s,border-color .14s}.sidebar-book-details .book-description-input::placeholder{color:var(--muted);opacity:.75}.sidebar-book-details .book-description-input:hover{background:var(--surface-soft)}.sidebar-book-details .book-description-input:focus{background:var(--surface);border-color:var(--line);color:var(--ink);outline:none;box-shadow:none}.book-description-limit{display:block;text-align:right;padding:3px 6px 0;color:var(--muted);font-size:9px;opacity:0}.book-description-input:focus+.book-description-limit{opacity:1}.sidebar-navigation-controls{display:flex;align-items:center;gap:2px;flex-shrink:0}.sidebar-navigation-controls .book-back-button{display:grid;place-items:center;width:24px;height:28px;padding:0}.sidebar-brand .brand-space{flex:1;min-width:0}.brand-transition{transform:translate(72px)}.sidebar-open .brand-transition{transform:translate(0)}@media(max-width:899px){.brand-transition{transform:translate(62px)}.sidebar-open .brand-transition{transform:translate(0)}}.book-cover-tools{opacity:0;pointer-events:none;transition:opacity .15s var(--ease)}.sidebar-book-cover:hover .book-cover-tools,.sidebar-book-cover:focus-within .book-cover-tools{opacity:1;pointer-events:auto}@media(hover:none){.book-cover-tools{opacity:1;pointer-events:auto}}@media(prefers-reduced-motion:reduce){.book-cover-tools{transition:none}}.sidebar-book-details .current-book-title{justify-content:flex-start}.sidebar-book-details .book-description-input{resize:none}.sidebar-book-cover{background-color:var(--sidebar)}.sidebar-book-cover:after,.sidebar-book-cover:not(.has-image):after{background:linear-gradient(to bottom,transparent 28%,color-mix(in srgb,var(--sidebar) 16%,transparent) 48%,color-mix(in srgb,var(--sidebar) 70%,transparent) 78%,var(--sidebar) 100%)}.sidebar-book-cover{box-shadow:none}.sidebar-book-cover:not(.has-image){box-shadow:none}.sidebar-book-cover:before{content:"";position:absolute;inset:0;border:1px solid var(--library-cover-border);border-radius:inherit;pointer-events:none;-webkit-mask-image:linear-gradient(#000 15%,transparent 85%);mask-image:linear-gradient(#000 15%,transparent 85%)}.sidebar-book-details{margin-top:-52px;padding:8px 7px 0;z-index:3}.sidebar-book-details .book-description-input{margin-top:4px;color:var(--ink);font-weight:450}.sidebar-book-cover{-webkit-mask-image:linear-gradient(#000 0 68%,transparent 100%);mask-image:linear-gradient(#000 0 68%,transparent 100%)}.local-workspace small.local-save-error{color:var(--danger)}.book-details-actions{display:flex;align-items:center;justify-content:flex-end;gap:4px;min-height:28px;margin-top:4px}.book-details-actions .book-description-limit{padding:0;margin-right:auto;opacity:0}.is-editing .book-details-actions .book-description-limit{opacity:1}.book-details-actions button{display:grid;place-items:center;width:25px;height:25px;border-radius:5px;color:var(--muted)}.book-details-actions .book-details-confirm{color:var(--primary-text);background:var(--brand)}.book-upload-row{display:flex;gap:7px;align-items:center;padding-bottom:9px}.book-upload-button{display:flex;align-items:center;justify-content:center;gap:7px;flex:1;min-height:31px;padding:6px 9px;border:1px solid var(--line);border-radius:6px;font-size:12px;background:var(--surface-soft)}.book-cover-actions{position:relative;width:100%}.book-cover-preview-button{position:relative;display:block;width:100%;height:64px;padding:0;overflow:hidden;border-radius:6px;background:var(--surface-soft)}.book-cover-preview-button>img{width:100%;height:100%;object-fit:cover;display:block}.book-cover-options-icon{position:absolute;right:7px;top:50%;transform:translateY(-50%);display:grid;place-items:center;width:27px;height:27px;border-radius:5px;background:var(--surface);color:var(--ink);box-shadow:0 1px 5px #0002}.book-cover-preview-button:hover .book-cover-options-icon{background:var(--surface-soft)}.book-cover-action-menu{position:absolute;right:0;top:calc(100% + 5px);z-index:5;min-width:158px;padding:4px;background:var(--surface);color:var(--ink);border:1px solid var(--line);border-radius:7px;box-shadow:var(--shadow-panel)}.book-cover-action-menu button{display:flex;align-items:center;gap:8px;width:100%;min-height:30px;padding:5px 7px;border-radius:4px;font-size:12px;text-align:start}.book-cover-action-menu button:is(:hover,:focus-visible){background:var(--surface-soft)}.book-cover-action-menu button svg{flex-shrink:0;color:var(--muted)}.book-cover-picker>.palette-section{border-top:1px solid var(--line);padding-top:10px}.book-upload-error{margin:0 0 9px;font-size:11px;line-height:1.4;color:var(--danger)}.has-custom-cover .book-title-group .node-caption,.has-custom-cover .book-cover-top{color:var(--book-cover-ink)}.central-book .book-open-page.is-icon-only{position:absolute;right:17px;bottom:17px;width:30px;height:30px;justify-content:center;padding:0;border-radius:5px}.header-search{width:30px;height:31px;flex:0 0 auto;transition:width .22s var(--ease)}.header-search.is-open{width:240px}.header-search .header-search-field{position:absolute;inset:0;width:100%;opacity:0;visibility:hidden;transform:translate(5px);transition:opacity .15s ease,transform .22s var(--ease),visibility 0s .18s}.header-search.is-open .header-search-field{opacity:1;visibility:visible;transform:translate(0);transition-delay:0s}.header-search-trigger{position:absolute;inset:0;transition:opacity .12s ease,transform .18s var(--ease),visibility 0s}.header-search.is-open .header-search-trigger{opacity:0;visibility:hidden;transform:scale(.85)}.header-search-popover{opacity:0;transform:translateY(-5px) scale(.985);transform-origin:top left;transition:opacity .15s ease,transform .18s var(--ease)}.header-search.is-open .header-search-popover{opacity:1;transform:none}@starting-style{.header-search.is-open .header-search-popover{opacity:0;transform:translateY(-5px) scale(.985)}}@media(max-width:700px){.header-search.is-open{width:min(240px,calc(100vw - 150px))}}@media(prefers-reduced-motion:reduce){.header-search,.header-search .header-search-field,.header-search-trigger,.header-search-popover{transition:none;transform:none}}.sidebar-book-details .book-name-editor .book-title-input{border:0;box-shadow:none}.sidebar-book-details.is-editing .book-description-input{resize:vertical;max-height:240px}.sidebar-book-details .book-description-input[readonly]{cursor:text}.sidebar-book-details .book-description-input[readonly]:focus{background:transparent;border-color:transparent}.header-back{position:fixed;left:12px;top:10px;z-index:36;display:grid;place-items:center;width:24px;height:28px;padding:0}.brand-transition{left:100px;transform:translate(calc(-50% + 30px));transition:transform .28s cubic-bezier(.22,1,.36,1)}.sidebar-open .brand-transition{transform:translate(-50%)}.has-open-page .header-back{z-index:111}.topbar{gap:8px}.topbar>.brand-space{flex-basis:170px}@media(max-width:899px){.topbar>.brand-space{flex-basis:176px}}@media(max-width:899px){.sidebar-open .topbar{left:208px}.sidebar-open .header-search.is-open{flex-shrink:1;max-width:calc(100% - 38px)}}@media(max-width:899px){.sidebar-open:not(.has-open-page) .topbar{z-index:36}}.topbar>.header-search.is-open{flex-shrink:1}.sidebar-brand .icon-button{width:30px}.sidebar-open .topbar{padding-left:11px}.sidebar-toggle-space{display:block;width:30px;height:30px;flex:0 0 30px}.sidebar-toggle-motion{position:fixed;z-index:36;left:41px;top:9px;width:30px;height:30px;transition:left .24s cubic-bezier(.22,1,.36,1),background-color .15s}.sidebar-open .sidebar-toggle-motion{left:167px}.has-open-page .sidebar-toggle-motion{z-index:111}@media(prefers-reduced-motion:reduce){.sidebar-toggle-motion{transition:none}}.book-library{height:100dvh;overflow:auto;color:var(--ink);background:radial-gradient(ellipse at 10% 0%,color-mix(in srgb,var(--ink) 4%,transparent),transparent 50%),var(--canvas);animation:library-enter .26s var(--ease) both}.library-header{min-height:56px;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 24px;border-bottom:1px solid var(--line);background:var(--sidebar)}.library-header .brand-lockup{font-size:20px}.library-header-actions{display:flex;align-items:center;gap:10px}.library-appearance{display:flex;gap:2px;padding:2px;background:var(--surface-soft);border-radius:7px}.library-appearance .icon-button{width:27px;height:27px}.library-appearance button[aria-pressed=true]{background:var(--surface);color:var(--ink);box-shadow:0 1px 4px #0001}.library-content{max-width:980px;margin:auto;padding:24px 24px 40px}.library-heading{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:14px}.library-heading h1{display:flex;align-items:center;gap:9px;margin:0;font-size:25px;font-weight:650;letter-spacing:-.6px}.library-heading h1>span{font-size:12px;font-weight:500;letter-spacing:0;min-width:22px;height:22px;display:grid;place-items:center;border:1px solid var(--line);border-radius:50%;color:var(--muted)}.library-heading p{margin:5px 0 0;font-size:12px;color:var(--muted)}.library-create{flex-shrink:0;width:auto;min-height:34px;display:flex;align-items:center;gap:7px;padding:7px 11px;border-radius:7px;font-size:12px}.library-create svg{transition:transform .22s var(--ease)}.library-create[aria-expanded=true] svg{transform:rotate(45deg)}.library-create:active{transform:scale(.96)}.library-search{display:flex;align-items:center;gap:8px;padding:0 10px;height:33px;color:var(--muted);border:1px solid var(--line);border-radius:7px;background:var(--surface);margin-bottom:4px}.library-search:focus-within{border-color:var(--muted)}.library-search input{width:100%;min-width:0;flex:1;background:none;border:0;box-shadow:none;outline:none;padding:0;font:12px var(--font-ui);color:var(--ink)}.library-search button{width:22px;height:24px;display:grid;place-items:center}.library-composer{display:grid;grid-template-rows:0fr;opacity:0;transition:grid-template-rows .22s var(--ease),opacity .18s}.library-composer.is-open{grid-template-rows:1fr;opacity:1}.library-composer>div{min-height:0;overflow:hidden}.library-composer form{display:flex;align-items:center;gap:8px;padding:10px;margin:8px 0 6px;border:1px solid var(--line);border-radius:9px;background:var(--surface)}.library-composer form>svg{color:var(--muted);flex-shrink:0}.library-composer input{flex:1;min-width:0;background:none;border:0;box-shadow:none;padding:4px;color:var(--ink);font:500 13px var(--font-ui)}.library-composer .primary-button{width:auto;flex-shrink:0;display:flex;gap:5px;align-items:center;padding:6px 9px;min-height:30px;font-size:12px;border-radius:5px}.library-list{display:flex;flex-direction:column}.library-card-slot{display:grid;grid-template-rows:1fr;opacity:1;transition:grid-template-rows .25s var(--ease),opacity .18s}.library-card-slot>div{min-height:0;overflow:visible}.library-card-slot.is-leaving>div{overflow:hidden}.library-card-slot.is-leaving{grid-template-rows:0fr;opacity:0;pointer-events:none}.library-card{position:relative;margin:18px 4px 4px;border-radius:12px;height:142px;color:#f5f6fa;box-shadow:0 5px 14px #00000018;animation:library-card-enter .32s var(--ease) var(--card-delay) both;transition:transform .22s var(--ease),box-shadow .22s;isolation:isolate}.library-card:hover{transform:translateY(-2px);box-shadow:0 8px 22px #0003}.library-card:has(:focus-visible){outline:2px solid var(--ink);outline-offset:2px}.library-card-art{position:absolute;inset:0;overflow:hidden;border-radius:inherit;background:var(--library-cover-background);background-size:cover;background-position:center;z-index:-1}.library-card-art:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,#10121718,#101217b8 26%,#101217ad 72%,#10121766);border-radius:inherit;box-shadow:inset 0 0 0 1px #ffffff14}.library-card-orbit{position:absolute;width:260px;height:260px;top:-200px;right:10%;border:1px solid #ffffff18;border-radius:50%;box-shadow:0 0 0 28px #ffffff04,0 0 0 60px #ffffff03}.library-card-art.has-image .library-card-orbit{display:none}.library-card-icon{position:absolute;right:28px;bottom:-25px;width:124px;height:124px;font-size:110px;display:grid;place-items:center;filter:grayscale(1);opacity:.14;transform:rotate(-16deg);z-index:1;pointer-events:none;transition:transform .28s var(--ease),opacity .22s}.library-card-icon img{width:116px;height:116px;object-fit:contain}.library-card:hover .library-card-icon{transform:rotate(-9deg) translateY(-3px);opacity:.18}.library-card-open{position:absolute;inset:0;display:flex;align-items:center;gap:12px;width:100%;padding:18px 48px 18px 146px;text-align:start;color:inherit;border-radius:inherit}.library-card-open:hover:not(:disabled),.library-card-open:active{background:transparent;color:inherit}.library-card-copy{display:flex;flex:1;flex-direction:column;min-width:0;gap:7px}.library-card-title{font-size:20px;line-height:1.3;font-weight:650;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;text-align:start}.library-card-caption{white-space:normal;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;color:#e6e7ed;font-size:12px;line-height:1.5;text-align:start}.library-card-meta{display:flex;flex-wrap:wrap;gap:10px;align-items:center;color:#c6c9d1;font-size:10px}.library-card-meta>span{display:inline-flex;align-items:center;gap:4px}.library-card-meta .library-recent{color:#f0f1f5}.library-recent:before{content:"";width:4px;height:4px;border-radius:50%;background:currentColor;margin-inline-end:2px}.library-open-arrow{flex-shrink:0;opacity:.65;transition:transform .2s var(--ease),opacity .2s}.library-card:hover .library-open-arrow{opacity:1;transform:translate(2px,-2px)}.library-card-delete{position:absolute;right:10px;top:10px;width:27px;height:27px;display:grid;place-items:center;color:#e4e6ec;background:#10121748;border-radius:5px;opacity:0;transform:translateY(-3px);transition:opacity .16s,transform .18s var(--ease),background .16s}.library-card:is(:hover,:focus-within) .library-card-delete{opacity:1;transform:none}.library-card-delete:hover{background:#101217c0;color:#fff}.library-book{position:absolute;left:22px;bottom:12px;width:100px;height:144px;perspective:500px;transform:rotate(-3deg);transition:transform .28s var(--ease);pointer-events:none}.library-book-pages{position:absolute;inset:5px -3px 1px 5px;border-radius:2px 7px 7px 2px;background:repeating-linear-gradient(to bottom,#e8e6da 0 2px,#c7c6bd 2px 3px);border:2px solid var(--library-book-base);box-shadow:0 8px 12px #0005}.library-book-face{position:absolute;inset:0;display:flex;flex-direction:column;justify-content:space-between;padding:12px 10px 12px 15px;border-radius:3px 7px 7px 3px;background:var(--library-book-fill);color:var(--library-book-ink);transform-origin:left center;transform:rotateY(-12deg);box-shadow:inset 0 1px #fff3,inset 0 0 0 1px #fff1,1px 3px 8px #0003;transition:transform .28s var(--ease)}.library-book-binding{position:absolute;inset:0 auto 0 0;width:8px;border-radius:3px 0 0 3px;background:linear-gradient(90deg,#0005,#fff1 45%,#0002 85%,transparent)}.library-book-face>span[dir]{white-space:normal;font-size:11px;line-height:1.45;font-weight:650;overflow:hidden;display:-webkit-box;-webkit-line-clamp:5;-webkit-box-orient:vertical;overflow-wrap:anywhere;text-align:start}.library-book-icon{display:flex;align-items:center;width:14px;height:14px;font-size:14px;line-height:1;flex-shrink:0}.library-book-icon img{width:14px;height:14px;object-fit:contain}.library-book-face>i{width:17px;height:1px;opacity:.4;background:currentColor;align-self:flex-end}.library-card:hover .library-book{transform:rotate(-4deg) translateY(-4px)}.library-card:hover .library-book-face{transform:rotateY(-23deg)}.library-card-slot.is-leaving .library-card{transform:translate(14px) scale(.97)}.library-card.is-opening{transform:scale(1.015);box-shadow:0 0 0 1px #fff4,0 12px 30px #0003}.library-card.is-opening .library-book-face{transform:rotateY(-42deg)}.book-library.is-opening{animation:library-exit .21s ease both;pointer-events:none}.library-empty{text-align:center;padding:40px 12px;color:var(--muted)}.library-empty h2{font-size:17px;color:var(--ink);margin:12px 0 6px}.library-empty p{font-size:12px;margin:0 0 10px}.library-empty button{font-size:12px;padding:7px 11px;border:1px solid var(--line);border-radius:6px}.app-shell.is-entering-book{animation:library-enter .23s var(--ease) both}@keyframes library-enter{0%{opacity:0;filter:blur(3px)}to{opacity:1;filter:none}}@keyframes library-exit{to{opacity:0;filter:blur(2px)}}@keyframes library-card-enter{0%{opacity:0;translate:0 10px;scale:.985}to{opacity:1;translate:0 0;scale:1}}@media(hover:none){.library-card-delete{opacity:1;transform:none}}@media(max-width:600px){.library-header{padding:10px 14px}.library-header .save-status{display:none}.library-header-actions{gap:6px}.library-content{padding:18px 12px 28px}.library-heading{gap:8px}.library-heading h1{font-size:22px}.library-heading p{font-size:11px;max-width:200px}.library-card{height:140px}.library-card-open{padding:14px 28px 14px 106px;gap:4px}.library-card-title{font-size:17px}.library-book{left:13px;width:78px;height:126px;bottom:20px}.library-book-face{padding:10px 7px 10px 12px}.library-book-face>span[dir]{font-size:10px}.library-card-meta{font-size:9px;gap:7px}.library-open-arrow{width:15px}.library-card-icon{right:10px}.library-create{padding:7px 9px}}@media(prefers-reduced-motion:reduce){.book-library,.library-card,.app-shell.is-entering-book{animation:none!important}.book-library *{transition:none!important;scroll-behavior:auto!important}.library-card:hover,.library-card.is-opening,.library-card:hover .library-book{transform:none}}.header-back{color:var(--ink);opacity:1;border-radius:5px;transition:background-color .13s ease}.header-back:hover{opacity:1}.header-back svg{transition:transform .18s var(--ease)}.header-back:hover svg{transform:scale(1.06)}.header-back:active svg{transform:scale(.94)}@media(prefers-reduced-motion:reduce){.header-back,.header-back svg{transition:none}.header-back:hover svg,.header-back:active svg{transform:none}}.app-shell.is-returning-travel{pointer-events:none}.app-shell .brand-transition{transition:left .36s var(--ease),top .36s var(--ease),transform .28s var(--ease)}.brand-transition .brand-mark,.brand-transition .brand-wordmark{transition:transform .36s var(--ease)}.app-shell.is-returning-travel .brand-transition{left:50vw;top:20px;transform:translate(-50%)}.app-shell.is-returning-travel .brand-mark{transform:translate(37.7px) scale(1.4286);transform-origin:top center}.app-shell.is-returning-travel .brand-wordmark{transform:translate(-17px,42px)}.app-shell.is-returning-travel>:not(.brand-transition){opacity:0;transition:opacity .2s ease}.book-library{animation:none}.library-header{position:relative;min-height:104px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;padding:20px 24px;border-bottom:0;background:transparent}.library-brand{grid-column:2;align-self:start}.library-brand .brand-lockup{flex-direction:column;gap:6px}.library-brand .brand-mark{width:40px;height:40px}.library-brand .brand-wordmark{height:20px}.library-user{grid-column:1;display:flex;align-items:center;gap:9px;min-width:0;animation:library-chrome-enter .32s var(--ease) both}.library-user>svg{flex-shrink:0;color:var(--muted)}.library-user>div{display:flex;flex-direction:column;gap:4px;min-width:0}.library-user>div>span:first-child{font-size:12px;font-weight:550}.library-user .save-status{font-size:10px}.library-header-actions{grid-column:3;justify-self:end;max-width:100%;gap:8px;animation:library-search-enter .36s var(--ease) both}.library-header .library-search{width:200px;max-width:calc(100vw - 120px);margin:0;transition:width .2s var(--ease),border-color .15s}.library-content{padding-top:8px;animation:library-chrome-enter .32s var(--ease) both}.library-heading{flex-direction:column;gap:12px;text-align:center;margin-bottom:12px}.library-heading h1{justify-content:center}.library-heading p{max-width:none}.library-content>.library-appearance{display:flex;width:max-content;margin:24px auto 0}.library-composer form{max-width:560px;margin:8px auto 12px}@keyframes library-chrome-enter{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}@keyframes library-search-enter{0%{opacity:0;transform:translate(-12px) scaleX(.92)}to{opacity:1;transform:none}}@media(max-width:700px){.library-header{grid-template-columns:1fr 1fr;gap:16px 10px;padding:20px 14px 12px}.library-brand{grid-column:1 / -1;grid-row:1;justify-self:center}.library-user{grid-column:1;grid-row:2}.library-header-actions{grid-column:2;grid-row:2}.library-header .library-search{width:150px}.library-user .save-status{display:flex}}@media(max-width:420px){.library-user>div>span:first-child{font-size:10px}.library-user{gap:5px}.library-header .library-search{width:120px}}@media(prefers-reduced-motion:reduce){.app-shell .brand-transition,.brand-transition .brand-mark,.brand-transition .brand-wordmark{transition:none!important}.library-user,.library-header-actions,.library-content{animation:none!important}}.brand-transition,.library-brand{view-transition-name:workspace-brand}.sidebar-open .workspace-sidebar{view-transition-name:workspace-sidebar}.central-book .book-perspective{view-transition-name:canvas-book-cover}.library-header-search.is-open{width:220px}.library-header-search .header-search-field{transform:translate(-5px)}.library-header-search.is-open .header-search-field{transform:none}.library-card{animation-duration:.42s}@keyframes library-card-enter{0%{opacity:0;translate:0 32px;scale:.985}to{opacity:1;translate:0 0;scale:1}}html[data-book-navigation] .book-library.is-opening,html[data-book-navigation] .app-shell.is-entering-book{animation:none}html[data-book-navigation] .library-card.is-opening,html[data-book-navigation] .library-card.is-opening .library-book-face{transform:none}.book-library.native-arrival .library-card,.book-library.native-arrival .library-content{animation:none}html[data-book-navigation] .central-book{animation-play-state:paused}html[data-book-navigation] .workspace-sidebar{transition:none}::view-transition-group(workspace-brand){animation-duration:.48s;animation-timing-function:cubic-bezier(.22,1,.36,1)}::view-transition-old(workspace-sidebar){animation:library-sidebar-out .48s var(--ease) both}::view-transition-new(workspace-sidebar){animation:library-sidebar-in .48s var(--ease) both}::view-transition-new(root){animation:library-view-in .42s 60ms var(--ease) both}@keyframes library-view-out{to{opacity:0}}@keyframes library-view-in{0%{opacity:0;transform:translateY(24px)}to{opacity:1;transform:none}}@keyframes library-sidebar-out{to{transform:translate(-100%);opacity:0}}@keyframes library-sidebar-in{0%{transform:translate(-100%);opacity:0}to{transform:none;opacity:1}}html[data-book-navigation] .app-shell .book-perspective{animation:none}@media(max-width:700px){.library-header-search.is-open{width:min(220px,calc(100vw - 195px))}}@media(prefers-reduced-motion:reduce){::view-transition-group(*),::view-transition-image-pair(*),::view-transition-old(*),::view-transition-new(*),.app-shell .book-perspective{animation:none!important}}.library-layer{position:fixed;inset:0;z-index:120;isolation:isolate;--library-width:clamp(560px,58vw,760px)}.library-backdrop{position:absolute;inset:0;background:#090b1030;animation:library-backdrop-in .42s ease both}.library-sheet{position:absolute;inset:0 auto 0 0;width:var(--library-width);outline:none;border-right:1px solid var(--line);box-shadow:12px 0 38px #0002;background:var(--sidebar);overflow:hidden;view-transition-name:workspace-sidebar;animation:library-rail-expand .48s var(--ease) both}.library-sheet .book-library{height:100%;display:flex;flex-direction:column;overflow:hidden;background:var(--sidebar);animation:none}.library-layer.is-closing{pointer-events:none}.library-layer.is-closing .library-sheet{animation:library-rail-contract .42s var(--ease) both}.library-layer.is-closing .library-backdrop{animation:library-backdrop-out .42s ease both}.library-sheet .library-header{position:relative;display:flex;align-items:center;justify-content:center;flex:0 0 48px;min-height:48px;padding:0 48px;border:0;gap:0}.library-sheet .library-brand{align-self:auto;view-transition-name:workspace-brand}.library-sheet .library-brand .brand-lockup{flex-direction:row;gap:6px}.library-sheet .library-brand .brand-mark{width:28px;height:28px}.library-sheet .library-brand .brand-wordmark{height:20px}.library-dismiss,.library-logout{position:absolute;top:9px;width:30px;height:30px;z-index:2}.library-dismiss{right:11px}.library-logout{left:11px;view-transition-name:library-logout;animation:library-logout-enter .42s var(--ease) both}.library-logout:disabled{color:var(--muted);opacity:.65;background:none;cursor:default}.library-sheet .library-content{flex:1 1 auto;min-height:0;width:100%;max-width:none;margin:0;overflow:auto;overscroll-behavior:contain;padding:14px 18px 20px;view-transition-name:library-shelf}.library-sheet .library-heading{flex-direction:row;text-align:start;gap:10px;margin-bottom:8px}.library-sheet .library-heading h1{justify-content:flex-start;font-size:23px}.library-sheet .library-heading p{font-size:11px}.library-sheet .library-card{height:136px}.library-sheet .library-book{width:88px;height:137px;left:18px}.library-sheet .library-card-open{padding-inline-start:124px;padding-inline-end:38px}.library-sheet .library-card-title{font-size:18px}.library-sheet .library-card-meta{gap:8px}.library-footer{flex:0 0 auto;padding:8px 18px 12px;background:var(--sidebar)}.library-footer .library-header-actions{display:flex;justify-content:flex-end;align-items:center;gap:8px;max-width:none;animation:none;margin:0;margin-inline-start:auto;flex-shrink:0}.library-footer .library-header-search.is-open{width:min(280px,calc(100vw - 90px))}.library-footer .sidebar-theme-switch{width:220px;max-width:100%;margin:0;view-transition-name:workspace-appearance}.library-footer .sidebar-theme-switch>button{height:30px;font-size:11px}.library-footer-row{position:relative;display:flex;align-items:center;gap:12px;margin-top:8px;padding-top:9px;border-top:1px solid var(--line)}.library-footer .library-user{display:flex;align-items:center;gap:8px;margin:0;padding:0 4px;animation:none;view-transition-name:workspace-user;transition:opacity .16s var(--ease)}.library-footer .library-user>svg{flex-shrink:0}.library-footer .library-user>div>span:first-child{font-size:11px}.library-footer .library-user .save-status{display:flex;font-size:10px}.sidebar-open .workspace-sidebar .sidebar-theme-switch{view-transition-name:workspace-appearance}.sidebar-open .workspace-sidebar .local-workspace{view-transition-name:workspace-user}.app-shell.has-library .brand-transition,.app-shell.has-library .workspace-sidebar,.app-shell.has-library .book-perspective,.app-shell.has-library .sidebar-theme-switch,.app-shell.has-library .local-workspace{view-transition-name:none}.app-shell.has-library .central-book{animation-play-state:paused}.app-shell.is-shelving-book .book-cover{transition-duration:.22s}.app-shell.is-shelving-book .central-book{animation-play-state:paused}.app-shell.has-library :is(.book-world,.canvas-caption,.canvas-tools,.bottom-left,.bottom-right){visibility:hidden;pointer-events:none}.library-layer.is-standalone{--library-width:100vw}.library-layer.is-standalone .library-sheet{border:0;box-shadow:none}.library-layer.native-arrival .library-sheet,.library-layer.native-arrival .library-logout{animation:none}@keyframes library-rail-expand{0%{width:var(--library-origin-width)}to{width:var(--library-width)}}@keyframes library-rail-contract{0%{width:var(--library-width)}to{width:var(--library-origin-width);opacity:0}}@keyframes library-logout-enter{0%{opacity:0;transform:translate(-24px)}to{opacity:1;transform:none}}@keyframes library-backdrop-in{0%{opacity:0}to{opacity:1}}@keyframes library-backdrop-out{0%{opacity:1}to{opacity:0}}::view-transition-group(workspace-sidebar),::view-transition-group(workspace-appearance),::view-transition-group(workspace-user){animation-duration:.48s;animation-timing-function:cubic-bezier(.22,1,.36,1)}::view-transition-image-pair(workspace-sidebar){overflow:clip}::view-transition-old(workspace-sidebar),::view-transition-new(workspace-sidebar){height:100%;object-fit:none;object-position:left top;animation:library-view-out .18s ease both}::view-transition-new(workspace-sidebar){animation:library-backdrop-in .18s ease both}::view-transition-new(workspace-sidebar):only-child{animation:library-rail-reveal .48s var(--ease) both}::view-transition-new(library-shelf){animation:library-view-in .42s 40ms var(--ease) both}::view-transition-old(library-shelf){animation:library-view-out .16s ease both}::view-transition-new(library-logout){animation:library-logout-enter .42s var(--ease) both}::view-transition-old(library-logout){animation:library-view-out .16s ease both}::view-transition-old(root){animation:library-view-out .18s ease both}::view-transition-new(root){animation:library-backdrop-in .18s ease both}@keyframes library-rail-reveal{0%{clip-path:inset(0 100% 0 0)}to{clip-path:inset(0)}}@media(max-width:899px){.library-layer{--library-width:100vw}.library-sheet{border:0;box-shadow:none}.library-backdrop{display:none}}@media(max-width:600px){.library-sheet .library-content{padding:12px 12px 18px}.library-footer{padding:8px 12px 10px}.library-sheet .library-heading h1{font-size:21px}.library-sheet .library-heading p{max-width:180px}.library-sheet .library-heading{gap:6px}.library-sheet .library-card-open{padding-inline-start:100px;padding-inline-end:26px}.library-sheet .library-book{left:12px;width:72px;height:124px;bottom:18px}.library-sheet .library-card-title{font-size:16px}.library-sheet .library-card-meta{gap:6px;font-size:9px}}@media(prefers-reduced-motion:reduce){.library-sheet,.library-backdrop,.library-logout,.library-layer.is-closing .library-sheet,.library-layer.is-closing .library-backdrop{animation:none!important}::view-transition-group(*),::view-transition-image-pair(*),::view-transition-old(*),::view-transition-new(*){animation:none!important}}::view-transition-group(canvas-book-cover){z-index:1;animation:none}::view-transition-group(workspace-sidebar){z-index:2}::view-transition-group(library-shelf){z-index:3}::view-transition-group(library-book-cover){z-index:4;animation:none}::view-transition-group(workspace-brand),::view-transition-group(workspace-appearance),::view-transition-group(workspace-user),::view-transition-group(library-logout){z-index:5}::view-transition-old(workspace-appearance),::view-transition-new(workspace-appearance),::view-transition-old(workspace-user),::view-transition-new(workspace-user){height:100%;object-fit:none;object-position:left bottom}html[data-book-navigation=canvas]::view-transition-group(workspace-sidebar),html[data-book-navigation=canvas]::view-transition-group(workspace-brand),html[data-book-navigation=canvas]::view-transition-group(workspace-appearance),html[data-book-navigation=canvas]::view-transition-group(workspace-user){animation-delay:var(--motion-book-slide)}html[data-book-navigation=canvas]::view-transition-old(workspace-sidebar){animation:library-view-out .48s var(--motion-book-slide) ease both}html[data-book-navigation=canvas]::view-transition-new(workspace-sidebar){animation:library-backdrop-in .18s var(--motion-book-slide) ease both}::view-transition-old(canvas-book-cover){animation:canvas-cover-away var(--motion-book-slide) var(--ease) both}::view-transition-new(canvas-book-cover){animation:canvas-cover-home var(--motion-book-slide) var(--motion-book-slide) var(--ease) both,canvas-cover-settle var(--motion-book-settle) calc(var(--motion-book-slide) * 2) ease-out forwards}::view-transition-old(library-book-cover){animation:shelf-cover-away var(--motion-book-slide) var(--ease) both}::view-transition-new(library-book-cover){animation:shelf-cover-home var(--motion-book-slide) var(--motion-book-slide) var(--ease) both,shelf-cover-settle var(--motion-book-settle) calc(var(--motion-book-slide) * 2) ease-out forwards}html[data-book-navigation=library]{--motion-book-slide:var(--motion-book-library-slide)}@keyframes canvas-cover-away{0%{filter:blur(0)}35%{filter:blur(var(--book-motion-blur))}to{transform:translate(var(--canvas-cover-travel));filter:blur(var(--book-motion-blur))}}@keyframes canvas-cover-home{0%{transform:translate(var(--canvas-cover-travel));opacity:0;filter:blur(var(--book-motion-blur))}8%{opacity:1}65%{filter:blur(.4px)}to{transform:translate(6px,-2px);opacity:1;filter:blur(0)}}@keyframes shelf-cover-away{0%{filter:blur(0)}35%{filter:blur(var(--book-motion-blur))}to{transform:translate(var(--shelf-cover-travel));opacity:0;filter:blur(var(--book-motion-blur))}}@keyframes shelf-cover-home{0%{transform:translate(var(--shelf-cover-travel));opacity:0;filter:blur(var(--book-motion-blur))}8%{opacity:1}65%{filter:blur(.4px)}to{transform:translate(-4px,-1px);opacity:1;filter:blur(0)}}@keyframes canvas-cover-settle{0%{transform:translate(6px,-2px)}55%{transform:translate(-2px)}to{transform:none}}@keyframes shelf-cover-settle{0%{transform:translate(-4px,-1px)}55%{transform:translate(1px)}to{transform:none}}@media(prefers-reduced-motion:reduce){::view-transition-old(canvas-book-cover),::view-transition-new(canvas-book-cover),::view-transition-old(library-book-cover),::view-transition-new(library-book-cover){animation:none!important}}.header-back{view-transition-name:workspace-library-button}.sidebar-toggle-motion,.library-dismiss{view-transition-name:workspace-panel-toggle}.app-shell.has-library .header-back,.app-shell.has-library .sidebar-toggle-motion{visibility:hidden;view-transition-name:none}::view-transition-group(workspace-library-button){z-index:6;animation:none}::view-transition-group(workspace-panel-toggle){z-index:6;animation-duration:.48s;animation-timing-function:cubic-bezier(.22,1,.36,1)}::view-transition-old(workspace-panel-toggle),::view-transition-new(workspace-panel-toggle){height:100%;object-fit:none;object-position:center;animation-duration:var(--motion-book-slide)}html[data-book-navigation=canvas]::view-transition-group(workspace-panel-toggle){animation-delay:var(--motion-book-slide)}::view-transition-old(workspace-library-button),::view-transition-old(library-logout){animation:library-control-away var(--motion-book-slide) var(--ease) both}::view-transition-new(workspace-library-button),::view-transition-new(library-logout){animation:library-logout-enter var(--motion-book-slide) var(--motion-book-slide) var(--ease) both}@keyframes library-control-away{to{opacity:0;transform:translate(-36px)}}@media(prefers-reduced-motion:reduce){::view-transition-group(workspace-panel-toggle),::view-transition-old(workspace-panel-toggle),::view-transition-new(workspace-panel-toggle),::view-transition-old(workspace-library-button),::view-transition-new(workspace-library-button),::view-transition-old(library-logout),::view-transition-new(library-logout){animation:none!important}}.book-cover-top .book-icon{font-size:17px;letter-spacing:0}.book-cover-top .book-icon img{width:17px;height:17px;object-fit:contain}.book-page-icon-window{z-index:0;clip-path:inset(0 round 6px 13px 13px 6px)}.book-cover-top,.book-open-page{position:relative;z-index:1}@media(max-width:540px){.library-footer-row.is-searching .library-user{opacity:0;pointer-events:none}.library-footer-row.is-searching .library-header-actions{position:absolute;inset-inline:0;bottom:0;width:100%;margin-inline-start:0}.library-footer-row.is-searching .library-header-search.is-open{flex:1;width:auto;min-width:0}}@media(prefers-reduced-motion:reduce){.library-footer .library-user{transition:none}}.central-book .book-page-icon-window .page-indicator{inset:auto -4px 8px auto;transform:rotate(-16deg)}.central-book:is(:hover,:focus-within) .book-page-icon-window .page-indicator{transform:rotate(-7deg) scale(1.04)}@media(prefers-reduced-motion:reduce){.central-book:is(:hover,:focus-within) .book-page-icon-window .page-indicator{transform:rotate(-16deg)}}.book-cover .book-open-page{align-self:flex-end}.book-rotation{position:absolute;left:50%;top:50%;width:208px;height:288px;transform:translate(-50%,-50%) rotate(var(--book-angle,0deg));transform-style:preserve-3d;transition:transform var(--book-turn-duration,.52s) var(--ease)}.central-book .book-cover{padding:0}.book-cover-content{position:absolute;left:50%;top:50%;width:var(--book-content-width,208px);height:var(--book-content-height,288px);display:flex;flex-direction:column;align-items:flex-start;padding:23px 24px 20px 30px;transform:translate(-50%,-50%) rotate(var(--book-counter-angle,0deg));transition:transform var(--book-turn-duration,.52s) var(--ease),width var(--book-turn-duration,.52s) var(--ease),height var(--book-turn-duration,.52s) var(--ease)}.central-book[data-turning]{transition:width var(--book-turn-duration,.52s) var(--ease),height var(--book-turn-duration,.52s) var(--ease),transform var(--book-turn-duration,.52s) var(--ease)}.central-book[data-turning] .book-port{pointer-events:none;opacity:0}.book-direction-dial{flex:none;width:30px;height:30px;color:var(--muted);border-radius:5px;cursor:pointer;-webkit-user-select:none;user-select:none;transition:color .13s,background .13s}.book-direction-dial:is(:hover,:focus-visible){color:var(--ink);background:var(--surface-soft)}.book-direction-dial[aria-expanded=true]{color:var(--ink);background:var(--surface-soft)}.book-direction-dial:focus-visible{outline:1px solid var(--accent);outline-offset:2px}.book-direction-dial svg{width:30px;height:30px;fill:none;stroke:currentColor;stroke-width:1.4}.book-direction-dial svg>circle,.book-direction-dial .dial-ticks{opacity:.4}.book-direction-dial g{transform-origin:15px 15px;transition:transform .18s var(--ease)}.book-direction-dial .dial-needle{stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}.book-direction-dial .dial-hub{fill:var(--surface)}@media(prefers-reduced-motion:reduce){.book-rotation,.book-cover-content,.central-book[data-turning],.book-direction-dial,.book-direction-dial g{transition:none}}.central-book:is([data-direction=top],[data-direction=bottom]) .book-interior:before{background:repeating-linear-gradient(to right,transparent 0 17px,var(--book-rule) 17px 18px)}.book-direction-anchor{position:relative;flex:none;width:30px;height:30px;z-index:7}.book-direction-dial{display:grid;place-items:center;position:relative;z-index:2;padding:0;touch-action:none;transition:transform .22s var(--ease),color .13s,background .13s}.book-direction-anchor.is-expanded .book-direction-dial{transform:scale(1.2);background:var(--surface);border-radius:50%;color:var(--ink)}.book-direction-menu{position:absolute;left:50%;top:50%;z-index:1;width:134px;height:134px;display:grid;grid-template:repeat(3,34px)/repeat(3,34px);gap:4px;padding:10px;border:2px solid color-mix(in srgb,var(--ink) 40%,transparent);border-radius:50%;background:var(--surface);box-shadow:0 0 0 1px color-mix(in srgb,var(--ink) 5%,transparent),var(--shadow-panel);opacity:0;transform:translate(-50%,-50%) scale(.22);pointer-events:none;transition:transform .24s var(--ease),opacity .16s}.book-direction-anchor.is-expanded .book-direction-menu{opacity:1;transform:translate(-50%,-50%) scale(1);pointer-events:auto}.book-direction-menu .direction-choice{display:grid;place-items:center;padding:0;border-radius:50%;color:var(--muted);transition:background .13s,color .13s,transform .13s}.book-direction-menu .direction-choice:is(:hover,:focus-visible){color:var(--ink);background:var(--surface-soft)}.book-direction-menu .direction-choice[aria-checked=true]{color:var(--primary-text);background:var(--brand)}.book-direction-menu .direction-choice:focus-visible{outline:1px solid var(--accent);outline-offset:2px}.book-direction-menu .direction-choice:active{transform:scale(.92)}.direction-top{grid-area:1/2}.direction-left{grid-area:2/1}.direction-right{grid-area:2/3}.direction-bottom{grid-area:3/2}@media(prefers-reduced-motion:reduce){.book-direction-menu,.book-direction-dial,.book-direction-menu .direction-choice{transition:none}}.book-sparks{position:absolute;inset:7px 0 8px 15px;overflow:hidden;border-radius:1px 8px 8px 1px;pointer-events:none;opacity:0;transform:translateZ(.7px);transition:opacity .42s var(--ease)}.book-sparks.is-open{opacity:1}.book-sparks i{position:absolute;border-radius:50%;background:#fffdf0;box-shadow:0 0 4px 1px #fff1b0,0 0 10px #ffe595;opacity:0;animation:book-spark var(--spark-duration) ease-in-out var(--spark-delay) infinite;animation-play-state:paused}.book-sparks.is-open i{animation-play-state:running}.book-sparks .is-star{border-radius:0;background:transparent;box-shadow:none;filter:drop-shadow(0 0 3px #ffe58a)}.book-sparks .is-star:before,.book-sparks .is-star:after{content:"";position:absolute;inset:0;background:#fffdf0;border-radius:50%;transform:scaleX(.24)}.book-sparks .is-star:after{transform:scaleY(.24)}.central-book.is-motion-paused .book-sparks i{animation-play-state:paused}@keyframes book-spark{0%,18%,to{opacity:0;transform:translateY(3px) scale(.55)}40%{opacity:var(--spark-strength)}65%{opacity:.2;transform:translateY(-3px) scale(1.15)}80%{opacity:0;transform:translateY(-5px) scale(.7)}}@media(prefers-reduced-motion:reduce){.book-sparks{transition:none}.book-sparks i{animation:none;opacity:.25}.book-sparks i:nth-child(2n){display:none}}.book-library{--shelf-short:100px;--shelf-long:144px;--shelf-left:22px;--shelf-bottom:12px}.library-sheet .book-library{--shelf-short:88px;--shelf-long:137px;--shelf-left:18px}.book-library .library-book{--shelf-width:var(--shelf-short);--shelf-height:var(--shelf-long);width:var(--shelf-width);height:var(--shelf-height);left:calc(var(--shelf-left) + (var(--shelf-long) - var(--shelf-width))/2);bottom:calc(var(--shelf-bottom) + (var(--shelf-long) - var(--shelf-height))/2);padding:0}.book-library .library-book:is([data-direction=top],[data-direction=bottom]){--shelf-width:var(--shelf-long);--shelf-height:var(--shelf-short)}.library-book-rotation{position:absolute;left:50%;top:50%;width:var(--shelf-short);height:var(--shelf-long);transform:translate(-50%,-50%) rotate(var(--shelf-angle));transform-style:preserve-3d}.book-library .library-book-face{padding:0}.library-book-content{position:absolute;left:50%;top:50%;width:var(--shelf-width);height:var(--shelf-height);padding:12px 10px 12px 15px;display:flex;flex-direction:column;justify-content:space-between;gap:6px;transform:translate(-50%,-50%) rotate(var(--shelf-counter-angle))}.library-book-content>span[dir]{white-space:normal;font-size:11px;line-height:1.35;font-weight:650;overflow:hidden;display:-webkit-box;-webkit-line-clamp:4;-webkit-box-orient:vertical;overflow-wrap:break-word;text-align:start}.library-book-content>i{width:17px;height:1px;opacity:.4;background:currentColor;align-self:flex-end;flex-shrink:0}.library-book:is([data-direction=top],[data-direction=bottom]) .library-book-content{padding:9px 12px;gap:4px}.library-book:is([data-direction=top],[data-direction=bottom]) .library-book-content>span[dir]{-webkit-line-clamp:2}.book-library .library-card-open{padding-inline-start:calc(var(--shelf-left) + var(--shelf-long) + 18px)}@media(max-width:600px){.book-library,.library-sheet .book-library{--shelf-short:72px;--shelf-long:124px;--shelf-left:12px;--shelf-bottom:18px}.library-book-content{padding:10px 7px 10px 12px}.library-book-content>span[dir]{font-size:10px}.book-library .library-card-open{padding-inline-start:calc(var(--shelf-left) + var(--shelf-long) + 12px)}}.book-inner-branches{overflow:visible;clip-path:inset(0);transform:translateY(var(--book-float-y))}.book-stationary-branches{transform:translateY(calc(-1 * var(--book-float-y)))}.central-book .book-title-input{border:0;border-radius:0;padding:0;background:transparent;outline:none;box-shadow:none;font:650 17px/1.28 var(--font-ui)}.appearance-language-row{display:flex;align-items:center;gap:6px;direction:ltr;width:100%}.appearance-language-row .sidebar-theme-switch{flex:1 1 88px;min-width:0;margin:0;direction:ltr}.workspace-sidebar .appearance-language-row .sidebar-theme-switch button span{display:none}.workspace-sidebar .appearance-language-row .sidebar-theme-switch button{padding:0;min-width:0}.language-picker{display:flex;align-items:center;flex:0 1 auto;min-width:0;padding:3px;gap:2px;border:1px solid var(--line);border-radius:7px;background:var(--surface-soft)}.language-picker button{height:28px;min-width:0;padding:0 6px;gap:4px;font-size:10px;border-radius:5px;color:var(--muted)}.language-picker button svg{flex-shrink:0}.language-picker button span{max-width:65px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.language-picker button.active{background:var(--surface);color:var(--ink);box-shadow:var(--shadow-sm)}.workspace-sidebar .language-picker button{padding:0 4px}.workspace-sidebar .language-picker button svg{display:none}.workspace-sidebar .language-picker button span{max-width:44px}.library-footer .appearance-language-row{justify-content:flex-start}.library-footer .appearance-language-row .sidebar-theme-switch{flex:0 1 220px}.language-wheel{position:fixed;z-index:500;color:var(--ink);filter:drop-shadow(0 5px 12px #0003);animation:language-wheel-in .18s var(--ease)}.language-wheel:before{content:"";position:absolute;inset:calc(50% - 18px) 0 auto;height:36px;border-radius:6px;background:var(--surface-soft);border:1px solid var(--line);pointer-events:none}.language-wheel-list{height:100%;overflow:auto;overscroll-behavior:contain;padding-block:72px;scrollbar-width:none;scroll-snap-type:y proximity;-webkit-mask-image:linear-gradient(transparent,#000 22% 78%,transparent);mask-image:linear-gradient(transparent,#000 22% 78%,transparent);perspective:500px}.language-wheel-list::-webkit-scrollbar{display:none}.language-wheel-list button{width:100%;height:36px;flex-shrink:0;padding:0 12px;justify-content:space-between;font-size:13px;scroll-snap-align:center;transform:rotateX(var(--wheel-tilt,0deg)) scale(var(--wheel-scale,1));opacity:var(--wheel-opacity,1);background:var(--surface);border-radius:5px}.language-wheel-list button[aria-selected=true]{font-weight:650}.language-wheel-list button:focus-visible{outline:1px solid var(--selection);outline-offset:-2px}@keyframes language-wheel-in{0%{opacity:0;scale:.94}to{opacity:1;scale:1}}.page-direction-control{position:relative}.node-page .page-title,.node-page .page-caption{text-align:var(--page-align-start);unicode-bidi:plaintext}.node-page .bn-inline-content,.node-page :is(td,th)>p{unicode-bidi:plaintext}.node-page :is(.bn-block-content,td,th):not([data-text-alignment]),.node-page [data-text-alignment=left]{text-align:var(--page-align-start)!important}.node-page [data-text-alignment=right]{text-align:var(--page-align-end)!important}.node-page .page-content[data-direction-motion=out]{animation:page-direction-out .14s ease both;pointer-events:none}.node-page .page-content[data-direction-motion=in]{animation:page-direction-in .26s var(--ease) both}.node-page[dir=ltr]{--page-direction-shift:-18px;--page-align-start:left;--page-align-end:right}.node-page[dir=rtl]{--page-direction-shift:18px;--page-align-start:right;--page-align-end:left}@keyframes page-direction-out{to{opacity:0;translate:var(--page-direction-shift) 0}}@keyframes page-direction-in{0%{opacity:0;translate:var(--page-direction-shift) 0}to{opacity:1;translate:0 0}}.node-page[dir=rtl] .bn-block-group .bn-block-group{margin-left:0;margin-right:var(--indent-size,24px)}.node-page[dir=rtl] .bn-block-group .bn-block-group>.bn-block-outer:before{left:auto;right:-12px;border-left:0;border-right:1px solid var(--bn-colors-side-menu)}.node-page[dir=rtl] .bn-block:has(>.bn-block-content>div>.bn-toggle-wrapper)>.bn-block-group{margin-left:0;margin-right:12px;padding-left:0;padding-right:20px}.node-page[dir=rtl] .bn-block:has(>.bn-react-node-view-renderer>[data-content-type=callout])>.bn-block-group{margin-left:0;margin-right:32px}.node-page[dir=rtl] .bn-block:has(>.bn-react-node-view-renderer>[data-content-type=callout][data-emoji=""])>.bn-block-group{margin-right:0}.node-page[dir=rtl] .bn-block:has(>.bn-react-node-view-renderer>[data-content-type=callout])>.bn-block-group>.bn-block-outer:before{border-right:0!important}.node-page[dir=rtl] .page-callout-actions{right:auto;left:-8px}.node-page[dir=rtl] .page-callout-icon:has(.is-empty) .callout-emoji{right:auto;left:20px}.page-presence.is-docked .node-page[dir=rtl] .page-content{padding-left:28px;padding-right:52px}@media(max-width:650px){.page-presence .node-page[dir=rtl] .page-content{padding-left:20px;padding-right:52px}}html[dir=rtl] .workspace-sidebar{inset:0 0 0 auto;border-right:0;border-left:1px solid var(--line);transform:translate(100%)}html[dir=rtl] .sidebar-open .workspace-sidebar{transform:translate(0)}html[dir=rtl] .topbar{left:0;right:var(--rail-width)}html[dir=rtl] .sidebar-open .topbar{padding-left:16px;padding-right:11px}html[dir=rtl] .header-right{margin-left:0;margin-right:auto}html[dir=rtl] .header-back{left:auto;right:12px}html[dir=rtl] .sidebar-toggle-motion{left:auto;right:41px;transition:right .24s var(--ease),background-color .15s}html[dir=rtl] .sidebar-open .sidebar-toggle-motion{right:167px}html[dir=rtl] .brand-transition{left:auto;right:100px;transform:translate(calc(50% - 30px))}html[dir=rtl] .sidebar-open .brand-transition{transform:translate(50%)}.brand-lockup{direction:ltr}html[dir=rtl] .library-sheet{inset:0 0 0 auto;border-right:0;border-left:1px solid var(--line)}html[dir=rtl] .library-dismiss{right:auto;left:11px}html[dir=rtl] .library-logout{left:auto;right:11px}html[dir=rtl] .book-library .library-book{left:auto;right:calc(var(--shelf-left) + (var(--shelf-long) - var(--shelf-width))/2)}html[dir=rtl] .library-card-delete{right:auto;left:10px}html[dir=rtl] .library-card-icon{right:auto;left:18px}html[dir=rtl] .library-open-arrow{right:auto;left:16px}html[dir=rtl] .header-search-popover{left:auto;right:0;transform-origin:top right}html[dir=rtl] .header-search-results>button{text-align:start}html[dir=rtl] .app-menu{right:0;left:auto}html[dir=rtl] .page-presence.is-docked .node-page{left:0;border-width:0 1px 0 0;box-shadow:8px 0 28px #00000012}html[dir=rtl] .page-panel-resize{inset:0 0 0 auto}html[dir=rtl] .page-panel-resize:after{left:auto;right:1px}html[dir=rtl] .page-nav-menu .page-nav-back{left:auto;right:0}html[dir=rtl] .page-nav-menu.has-back .page-nav-wheel{margin-left:0;margin-right:28px}html[dir=rtl] .page-navigation>svg,html[dir=rtl] .page-nav-back svg,html[dir=rtl] .page-nav-row>svg:last-child{transform:scaleX(-1)}html[dir=rtl] .book-cover-tools{right:auto;left:8px}html[dir=rtl] .book-details-actions .book-description-limit{margin-right:0;margin-left:auto}html[dir=rtl] .book-description-limit{text-align:start}html[dir=rtl] .book-cover-action-menu{right:auto;left:0}html[dir=rtl] .book-cover-action-menu button{text-align:start}html[dir=rtl] .canvas-caption{left:auto;right:calc(var(--rail-width) + 14px)}.book-world,.connections{direction:ltr}html{--language-exit:-40px}html[dir=rtl]{--language-exit:40px}html[data-language-motion=out] :is(.workspace-sidebar,.topbar,.brand-transition,.header-back,.sidebar-toggle-motion,.library-sheet){animation:language-chrome-out .22s ease both!important;pointer-events:none}html[data-language-motion=in] :is(.workspace-sidebar,.topbar,.brand-transition,.header-back,.sidebar-toggle-motion,.library-sheet){animation:language-chrome-in .28s var(--ease) both!important}@keyframes language-chrome-out{to{translate:var(--language-exit) 0;opacity:0}}@keyframes language-chrome-in{0%{translate:var(--language-exit) 0;opacity:0}to{translate:0 0;opacity:1}}@media(max-width:899px){html[dir=rtl] .sidebar-open .topbar{left:0;right:208px}}@media(max-width:700px){html[dir=rtl] .header-search-popover{left:8px;right:8px}}@media(prefers-reduced-motion:reduce){html[data-language-motion] :is(.workspace-sidebar,.topbar,.brand-transition,.header-back,.sidebar-toggle-motion,.library-sheet),.node-page .page-content[data-direction-motion],.language-wheel{animation:none!important}}.language-wheel-list{padding-block:var(--wheel-padding,72px)}html[data-language-motion=out] :is(.workspace-sidebar,.library-sheet){animation:language-rail-out .22s ease both!important}html[data-language-motion=in] :is(.workspace-sidebar,.library-sheet){animation:language-rail-in .28s var(--ease) both!important}html{--language-rail-exit:-100%}html[dir=rtl]{--language-rail-exit:100%}@keyframes language-rail-out{to{translate:var(--language-rail-exit) 0;opacity:0}}@keyframes language-rail-in{0%{translate:var(--language-rail-exit) 0;opacity:0}to{translate:0 0;opacity:1}}@media(prefers-reduced-motion:reduce){html[data-language-motion] :is(.workspace-sidebar,.library-sheet){animation:none!important}}.node-page[dir=rtl] .bn-block-content:is([data-content-type=bulletListItem],[data-content-type=numberedListItem]):before{padding-right:0;padding-left:4px;direction:ltr;unicode-bidi:isolate}.node-page[dir=rtl] [data-content-type=quote] blockquote{border-left:0;border-right:3px solid var(--ink);padding-left:0;padding-right:1em}.node-page[dir=rtl] .bn-toggle-wrapper[data-show-children=false] .bn-toggle-button>svg{transform:scaleX(-1)}.node-page[dir=rtl] .bn-toggle-add-block-button{margin-left:0;margin-right:32px}.node-page[dir=rtl] .bn-block-outer[data-prev-depth-change]{margin-left:0;margin-right:calc(10px * var(--x))}.node-page[dir=rtl] .bn-block-outer[data-prev-depth-change] .bn-block-outer[data-prev-depth-change]{margin-right:0}html[dir=rtl] .page-view-controls{padding-left:0;padding-right:5px;border-left:0;border-right:1px solid var(--line)}html[dir=rtl] .book-title-anchor .current-book-title{text-align:start}html[dir=rtl] .sidebar-footer>button{text-align:start}html[dir=rtl] .page-presence.is-docked .node-page>.page-scroll{transform-origin:left center}html[dir=rtl] .page-presence.is-docked.is-closing .node-page{animation:page-panel-out-rtl .22s var(--ease) both}@keyframes page-panel-out-rtl{to{translate:-32px 0;opacity:0}}.node-page [data-content-type=codeBlock],.node-page .bn-inline-content code,.node-page .katex{direction:ltr;unicode-bidi:isolate}.node-page [data-content-type=codeBlock]{text-align:left}.page-direction-control{display:flex;align-items:center;gap:2px;flex-shrink:0}.page-direction-control button[aria-pressed=true]{background:var(--surface-soft);color:var(--ink)}.library-preferences-row{position:relative;display:flex;align-items:center;gap:8px;min-height:38px}.library-preferences-row .appearance-language-row{width:auto;flex:1 1 auto;gap:8px;min-width:0;transition:opacity .15s var(--ease)}.library-footer .sidebar-theme-switch{flex:1 1 auto;width:auto}.library-footer .sidebar-theme-switch:before{width:calc((100% - 12px)/3);transform:translate(calc(var(--theme-index) * (100% + 2px)))}.library-footer .sidebar-theme-switch>button{flex:1;height:30px;padding:0 12px;gap:5px}.library-footer .sidebar-theme-switch>button span{max-width:none;opacity:1;transform:none;margin:0}.library-footer .language-picker{flex:0 0 auto;gap:2px;padding:3px}.library-footer .language-picker button{height:30px;padding:0 12px;font-size:11px;min-width:64px;flex:1}.library-footer .language-picker button span{max-width:none}.library-archive-button{gap:6px;padding:0 8px;height:30px;white-space:nowrap;font-size:11px}.library-footer .library-header-actions{gap:4px}.language-wheel.wheel-ltr{padding-left:30px}.language-wheel.wheel-rtl{padding-right:30px}.language-wheel.wheel-ltr:before{left:30px}.language-wheel.wheel-rtl:before{right:30px}.language-wheel-arrows{position:absolute;top:50%;transform:translateY(-50%);display:flex;flex-direction:column;gap:3px}.wheel-ltr .language-wheel-arrows{left:0}.wheel-rtl .language-wheel-arrows{right:0}.language-wheel-arrows button{width:26px;height:26px;padding:0;background:var(--surface);color:var(--ink);border:1px solid var(--line);border-radius:5px}.language-wheel-arrows button:disabled{opacity:.3}.library-footer .appearance-language-row .sidebar-theme-switch{flex:0 0 auto;width:276px}.library-footer .sidebar-theme-switch>button span,.library-footer .language-picker button span{flex-shrink:0}.library-footer .language-picker button{min-width:80px}.library-preferences-row,.library-footer-row,.library-preferences-row .appearance-language-row{flex-wrap:nowrap}.library-footer .library-user{min-width:0}.library-footer .library-user>div{min-width:0}.library-footer .library-user>div>span{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}@media(max-width:620px){.library-preferences-row .appearance-language-row{display:flex;gap:6px}.library-footer .appearance-language-row .sidebar-theme-switch{flex:1.4 1 0;width:auto;min-width:0}.library-footer .language-picker{flex:1 1 0;min-width:0}.library-footer .sidebar-theme-switch>button,.library-footer .language-picker button{min-width:0;padding:0 4px;gap:3px;font-size:10px}.library-footer .sidebar-theme-switch>button span,.library-footer .language-picker button span{min-width:0;flex-shrink:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.library-footer-row{gap:6px}}@media(max-width:420px){.library-footer .sidebar-theme-switch>button svg{display:none}}.language-picker{position:relative}.language-feedback{position:absolute;inset-inline-start:0;bottom:calc(100% + 6px);max-width:280px;width:max-content;font-size:11px;line-height:1.4;color:var(--muted);pointer-events:none}.language-feedback:empty{display:none}.language-picker[aria-busy=true]{cursor:progress}.language-picker[aria-busy=true]:after{content:"";position:absolute;bottom:1px;inset-inline:10px;height:2px;border-radius:2px;background:var(--ink);opacity:.45;animation:language-loading .85s ease-in-out infinite alternate;pointer-events:none}@keyframes language-loading{0%{opacity:.15;scale:.35 1}to{opacity:.6;scale:1 1}}html[data-language-motion=fade-out] :is(.workspace-sidebar,.topbar,.brand-transition,.header-back,.sidebar-toggle-motion,.library-sheet){animation:language-copy-out .1s ease both!important;pointer-events:none}html[data-language-motion=fade-in] :is(.workspace-sidebar,.topbar,.brand-transition,.header-back,.sidebar-toggle-motion,.library-sheet){animation:language-copy-in .16s var(--ease) both!important}@keyframes language-copy-out{to{opacity:0;translate:0 3px}}@keyframes language-copy-in{0%{opacity:0;translate:0 -3px}to{opacity:1;translate:0 0}}@media(prefers-reduced-motion:reduce){.language-picker[aria-busy=true]:after,html[data-language-motion] :is(.workspace-sidebar,.topbar,.brand-transition,.header-back,.sidebar-toggle-motion,.library-sheet){animation:none!important}}.node-caption input{text-align:inherit}.node-caption:not(.is-overflowing) .caption-track{width:100%}.node-caption:not(.is-overflowing) .caption-track>span{width:100%;text-align:inherit}.node-caption[dir=rtl]{--caption-sign:1}.node-caption[dir=ltr]{--caption-sign:-1}:root{--interface-align-start:left;--interface-align-end:right}html[dir=rtl]{--interface-align-start:right;--interface-align-end:left}.node-title,.node-title-input,.book-title,.book-title-input,.caption-track>span,.library-card-title,.library-card-caption,.library-book-content>span[dir],.current-book-title,.book-description,.book-description-input{unicode-bidi:plaintext}.library-card-title,.library-card-caption,.library-book-content>span[dir],.book-title-anchor .current-book-title,.book-name-editor .book-title-input,.book-description,.book-description-input,.library-composer input,.header-search-field input{text-align:var(--interface-align-start)}.node-caption{text-align:var(--interface-align-start)}.book-title-group .node-caption{text-align:var(--book-text-align)}.node-page [data-content-type=codeBlock],.node-page [data-content-type=codeBlock] .bn-inline-content{direction:ltr;unicode-bidi:isolate;text-align:left!important}.canvas-utility{display:flex;align-items:center;flex-shrink:0}@media(max-width:1200px){.bottom-left .shortcut-hint{display:none}}.sidebar-book-card{position:relative}.book-cover-topbar{position:absolute;z-index:5;top:8px;left:8px;right:8px;display:flex;align-items:center;justify-content:space-between;gap:4px}.book-cover-topbar .book-cover-tools{position:static;min-width:0}.book-cover-topbar .book-cover-tools button{padding:4px;gap:3px;font-size:9px;white-space:nowrap}.sidebar-book-card:hover .book-cover-tools,.sidebar-book-card:focus-within .book-cover-tools,.sidebar-book-card.is-editing .book-cover-tools{opacity:1;pointer-events:auto}.book-details-toolbar{flex-shrink:0;margin:0;min-height:28px;padding:2px;border-radius:7px;background:var(--surface);box-shadow:0 2px 8px #00000018}.book-details-toolbar .book-details-confirm:is(:hover,:focus-visible){background:var(--brand-hover);color:var(--primary-text)}.book-details-toolbar .book-details-confirm:active{background:var(--brand);color:var(--primary-text);transform:scale(.94)}.book-details-toolbar button:disabled{opacity:.45;cursor:wait}.book-details-count{min-height:16px}.workspace-sidebar{padding-bottom:12px}.workspace-sidebar .sidebar-footer{gap:0}.workspace-sidebar .workspace-switch{margin:0;flex-shrink:0}.workspace-sidebar .workspace-switch>button{height:30px}.workspace-sidebar .local-workspace{height:41px;flex-shrink:0;padding:9px 4px 0;margin-top:8px}.library-footer-row{min-height:41px}@media(max-width:700px){.workspace-sidebar{padding-bottom:10px}}.workspace-switch.is-workspace>button[aria-pressed=true] span{max-width:80px;text-overflow:ellipsis}.workspace-switch>button:focus-visible{outline:2px solid var(--muted);outline-offset:1px}::view-transition-old(workspace-appearance){animation:workspace-mode-out .18s ease both}::view-transition-new(workspace-appearance){animation:workspace-mode-in .23s .1s ease both}@keyframes workspace-mode-out{to{opacity:0}}@keyframes workspace-mode-in{0%{opacity:0}to{opacity:1}}@media(prefers-reduced-motion:reduce){::view-transition-group(workspace-appearance),::view-transition-old(workspace-appearance),::view-transition-new(workspace-appearance){animation:none}}.sidebar-open .workspace-sidebar .workspace-switch>button,.library-footer .workspace-switch>button{view-transition-name:var(--switch-slot-name)}.app-shell.has-library .workspace-switch>button{view-transition-name:none}::view-transition-group(workspace-mode-0),::view-transition-group(workspace-mode-1),::view-transition-group(workspace-mode-2){animation-duration:.48s;animation-timing-function:cubic-bezier(.22,1,.36,1)}::view-transition-old(workspace-appearance),::view-transition-new(workspace-appearance){width:100%;height:100%;object-fit:fill}::view-transition-old(workspace-mode-0),::view-transition-new(workspace-mode-0),::view-transition-old(workspace-mode-1),::view-transition-new(workspace-mode-1),::view-transition-old(workspace-mode-2),::view-transition-new(workspace-mode-2){width:100%;height:100%;object-fit:none;object-position:center;animation-duration:.24s}@media(prefers-reduced-motion:reduce){::view-transition-group(workspace-mode-0),::view-transition-group(workspace-mode-1),::view-transition-group(workspace-mode-2),::view-transition-old(workspace-mode-0),::view-transition-new(workspace-mode-0),::view-transition-old(workspace-mode-1),::view-transition-new(workspace-mode-1),::view-transition-old(workspace-mode-2),::view-transition-new(workspace-mode-2){animation:none}}