:root{--bg-primary: #1a1e24;--bg-secondary: #1d2229;--bg-tertiary: #252b33;--bg-panel: #1f252d;--bg-card: #222831;--bg-sunken: #181d24;--bg-input: #151b22;--bg-hover: rgba(123, 200, 210, .07);--bg-overlay: rgba(25, 30, 38, .9);--bg-c-perspective-comment: rgba(30, 24, 14, .92);--bg-mirror-header: linear-gradient(180deg, rgba(27, 33, 40, .98) 0%, rgba(27, 33, 40, .92) 100%);--bg-mirror-badge: rgba(24, 29, 36, .78);--bg-mirror-meta: rgba(27, 32, 38, .72);--bg-timeline-bar: rgba(25, 30, 37, .88);--bg-timeline-future: rgba(12, 18, 26, .35);--accent-cyan: #7bc8d2;--accent-cyan-dim: #5fa9b3;--accent-cyan-border: rgba(123, 200, 210, .9);--tp-border: #ffffff48;--accent-amber: #ffbf00;--accent-pink: #ff6495;--accent-green: #00ff9f;--accent-red: #ff6464;--accent-purple: #b97aff;--c-perspective: #e8e8e8;--text-primary: #bcc8d0;--text-secondary: #99a6af;--text-muted: #7d8a94;--card-dimmed-opacity: .38;--card-dimmed-brightness: .92;--border-dim: rgba(123, 200, 210, .13);--border-active: rgba(123, 200, 210, .4);--graph-grid-line: rgba(123, 200, 210, .04);--graph-provenance-edge: var(--accent-purple);--font-display: "Outfit", sans-serif;--font-body: "Inter", sans-serif;--sp-xs: .375rem;--sp-sm: .75rem;--sp-md: 1.25rem;--sp-lg: 2rem;--sp-xl: 3rem;--shadow-sm: 0 2px 8px rgba(0,0,0,.4);--shadow-md: 0 4px 16px rgba(0,0,0,.5);--shadow-lg: 0 8px 32px rgba(0,0,0,.6);--card-shadow-rest: 0 2px 12px rgba(255, 255, 255, .1);--card-shadow-hover: 0 6px 24px rgba(255, 255, 255, .2);--card-shadow-dragging: 0 12px 36px rgba(255, 255, 255, .3);--radius-sm: 4px;--radius-md: 8px;--radius-lg: 12px;--glow-cyan: 0 0 12px rgba(127, 255, 255, .25);--glow-cyan-strong: 0 0 24px rgba(127, 255, 255, .5);--glow-amber: 0 0 16px rgba(232, 232, 232, .4);--glow-pink: 0 0 12px rgba(255, 100, 149, .4);--shadow-mirror-indicator: 0 0 8px rgba(0, 255, 159, .8);--shadow-timeline-committed: 0 0 6px rgba(127, 255, 255, .6);--border-mirror-badge: rgba(255, 191, 0, .5);--border-mirror-meta: rgba(255, 191, 0, .25);--border-timeline-active: rgba(127, 255, 255, .3);--timeline-edit-tick: rgba(127, 255, 255, .3);--tx-fast: .15s ease;--tx-med: .25s ease;--tx-slow: .4s ease;--sidebar-left-w: 220px;--sidebar-right-w: 360px;--timeline-bar-height: 52px;color-scheme:dark}:root[data-theme=light]{--bg-primary: #d7dfe8;--bg-secondary: #d3dce6;--bg-tertiary: #c9d4e0;--bg-panel: #d7e1ec;--bg-card: #e2e9f2;--bg-sunken: #ced8e4;--bg-input: #c4cfdb;--bg-hover: rgba(63, 111, 151, .08);--bg-overlay: rgba(225, 233, 242, .92);--bg-c-perspective-comment: rgba(236, 230, 221, .94);--bg-mirror-header: linear-gradient(180deg, rgba(220, 229, 239, .98) 0%, rgba(211, 221, 232, .95) 100%);--bg-mirror-badge: rgba(233, 226, 216, .95);--bg-mirror-meta: rgba(228, 221, 210, .9);--bg-timeline-bar: rgba(219, 228, 238, .92);--bg-timeline-future: rgba(42, 73, 113, .1);--accent-cyan: #3f6197;--accent-cyan-dim: #566a9a;--accent-cyan-border: rgba(63, 98, 151, .9);--tp-border: #173e7452;--accent-amber: #9a6700;--accent-pink: #9d4c72;--accent-green: #147a5a;--accent-red: #b44b5b;--accent-purple: #7c3aed;--c-perspective: #041e42;--text-primary: #041e42;--text-secondary: #1f3a68;--text-muted: #4b5f84;--card-dimmed-opacity: .58;--card-dimmed-brightness: .97;--border-dim: rgba(63, 111, 151, .16);--border-active: rgba(63, 111, 151, .32);--graph-grid-line: rgba(63, 111, 151, .1);--graph-provenance-edge: var(--accent-purple);--shadow-sm: 0 2px 8px rgba(18, 35, 63, .08);--shadow-md: 0 8px 24px rgba(18, 35, 63, .14);--shadow-lg: 0 18px 48px rgba(18, 35, 63, .16);--card-shadow-rest: 0 2px 12px rgba(0, 0, 0, .5);--card-shadow-hover: 0 6px 24px rgba(0, 0, 0, .6);--card-shadow-dragging: 0 12px 36px rgba(0, 0, 0, .7);--glow-cyan: 0 0 12px rgba(23, 61, 116, .14);--glow-cyan-strong: 0 0 24px rgba(23, 61, 116, .22);--glow-amber: 0 0 14px rgba(154, 103, 0, .16);--glow-pink: 0 0 12px rgba(157, 76, 114, .14);--shadow-mirror-indicator: 0 0 8px rgba(20, 122, 90, .28);--shadow-timeline-committed: 0 0 6px rgba(23, 61, 116, .28);--border-mirror-badge: rgba(154, 103, 0, .35);--border-mirror-meta: rgba(154, 103, 0, .22);--border-timeline-active: rgba(23, 61, 116, .28);--timeline-edit-tick: rgba(23, 61, 116, .22);color-scheme:light}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html,body,#root{width:100%;height:100dvh;overflow:hidden;background:var(--bg-primary);color:var(--text-primary);font-family:var(--font-body);font-size:14px;line-height:1.5}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:var(--bg-secondary)}::-webkit-scrollbar-thumb{background:var(--accent-cyan-dim)}h1,h2,h3,h4,h5,h6{font-family:var(--font-display);font-weight:700;letter-spacing:.02em;line-height:1.2}h1{font-size:2.5rem}h2{font-size:1.875rem}h3{font-size:1.5rem}h4{font-size:1.25rem}h5{font-size:1.1rem}button{font-family:var(--font-body);font-size:.8rem;cursor:pointer;border:none;background:none;color:inherit;transition:var(--tx-fast)}button:focus-visible{outline:1px solid var(--accent-cyan);outline-offset:2px}.btn-primary{background:transparent;color:var(--accent-cyan-dim);border:1px solid var(--accent-cyan-border);padding:var(--sp-xs) var(--sp-sm);font-family:var(--font-display);font-size:.875rem;font-weight:600;letter-spacing:.04em;border-radius:var(--radius-sm);box-shadow:var(--shadow-sm);transition:var(--tx-fast)}.btn-primary:hover,.btn-primary:focus-visible{background:transparent;color:var(--accent-cyan);border-color:var(--accent-cyan);box-shadow:var(--shadow-md),var(--glow-cyan)}.btn-ghost{color:var(--text-secondary);padding:var(--sp-xs) var(--sp-sm);border:1px solid;font-size:.75rem;border-radius:var(--radius-sm);transition:var(--tx-fast)}.btn-ghost:hover{color:var(--text-primary)}.btn-danger{color:var(--accent-red);border:1px solid var(--accent-red);padding:var(--sp-xs) var(--sp-sm);font-family:var(--font-display);font-size:.75rem;font-weight:600;letter-spacing:.04em;border-radius:var(--radius-sm)}.btn-danger:hover{background:var(--accent-red);color:var(--bg-primary)}input,textarea,select{font-family:var(--font-body);font-size:.85rem;background:var(--bg-secondary);color:var(--text-primary);border:1px solid var(--border-dim);border-radius:var(--radius-sm);padding:var(--sp-xs) var(--sp-sm);outline:none;transition:border-color var(--tx-fast);width:100%}input:focus,textarea:focus,select:focus{border-color:var(--accent-cyan);box-shadow:var(--glow-cyan)}input::placeholder,textarea::placeholder{color:var(--text-muted)}.gradient-text{background:linear-gradient(90deg,var(--accent-cyan),var(--accent-cyan-dim));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.glassmorphism{background:var(--bg-overlay);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px)}@keyframes pulse-cyan{0%,to{box-shadow:var(--glow-cyan)}50%{box-shadow:var(--glow-cyan-strong)}}@keyframes pulse-amber{0%,to{box-shadow:0 0 12px #e8e8e84d}50%{box-shadow:0 0 28px #e8e8e899,0 0 48px #e8e8e833}}@keyframes dash-flow{to{stroke-dashoffset:-20}}@keyframes blink{0%,to{opacity:1}50%{opacity:0}}@keyframes fade-in{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}@keyframes slide-in-left{0%{transform:translate(-16px);opacity:0}to{transform:translate(0);opacity:1}}@keyframes node-appear{0%{opacity:0;transform:scale(.6)}to{opacity:1;transform:scale(1)}}@keyframes tp-hex-idle-spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}@keyframes tp-hex-hover-spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.folder-gate{display:flex;align-items:center;justify-content:center;min-height:100dvh;background:var(--bg-primary);font-family:var(--font-body)}.folder-gate{position:relative}.folder-gate-theme-toggle{position:absolute;top:12px;right:12px;display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:6px}.folder-gate-inner{display:flex;flex-direction:column;align-items:center;gap:var(--sp-md);max-width:480px;width:100%;padding:var(--sp-xl) var(--sp-lg);text-align:center}.folder-gate-loading{font-family:var(--font-display);font-size:1.5rem;font-weight:600;color:var(--accent-cyan);letter-spacing:.04em;animation:blink 1.4s ease-in-out infinite}@keyframes blink{0%,to{opacity:1}50%{opacity:.3}}.folder-gate-title{font-family:var(--font-display);font-size:2.5rem;font-weight:700;color:var(--accent-cyan);letter-spacing:.03em;margin:0 0 var(--sp-sm);text-shadow:var(--glow-cyan)}.folder-gate-subtitle{font-size:.85rem;color:var(--text-primary);margin:0;letter-spacing:.04em}.folder-gate-body{font-size:.78rem;color:var(--text-secondary);line-height:1.7;margin:0}.folder-gate-body code,.folder-gate-dir{font-family:var(--font-body);color:var(--accent-cyan);background:#7fffff12;padding:.1em .4em;border-radius:2px}.folder-gate-hint{font-size:.72rem;color:var(--text-muted);border:1px solid var(--border-dim);border-radius:var(--radius-sm);padding:var(--sp-sm) var(--sp-md);line-height:1.6;margin:0}.folder-gate-btn{width:100%;padding:var(--sp-sm) var(--sp-md);font-size:1rem;letter-spacing:.08em}.folder-gate-btn-ghost{font-size:.78rem;color:var(--text-muted);background:none;border:none;cursor:pointer;text-decoration:underline;padding:0;font-family:var(--font-body);transition:color var(--tx-fast)}.folder-gate-btn-ghost:hover{color:var(--text-secondary)}.folder-gate-note{font-size:.68rem;color:var(--text-muted);margin:0;line-height:1.5}.folder-gate-error{font-size:.78rem;color:var(--accent-red);margin:0;word-break:break-word}.page-manager{display:flex;flex-direction:column;height:100%;overflow:hidden}.pm-header{display:flex;align-items:center;justify-content:space-between;padding:var(--sp-sm) var(--sp-sm);border-bottom:1px solid var(--border-dim);flex-shrink:0}.pm-header-actions{display:flex;align-items:center;gap:4px}.pm-title{font-family:var(--font-display);font-size:1rem;font-weight:600;letter-spacing:.04em;color:var(--text-secondary);cursor:pointer;-webkit-user-select:none;user-select:none}.pm-new-btn{width:24px;height:24px;display:flex;align-items:center;justify-content:center;color:var(--accent-cyan-dim);font-size:1.2rem;border:1px solid var(--accent-cyan-border);border-radius:var(--radius-sm);box-shadow:var(--shadow-sm);transition:var(--tx-fast)}.pm-new-btn:hover,.pm-new-btn:focus-visible{background:transparent;color:var(--accent-cyan);border-color:var(--accent-cyan);box-shadow:var(--shadow-md),var(--glow-cyan);text-shadow:0 0 10px rgba(127,255,255,.45)}.pm-create-row{padding:var(--sp-xs) var(--sp-sm);border-bottom:1px solid var(--border-dim);flex-shrink:0}.pm-create-input,.pm-edit-input{background:var(--bg-tertiary);color:var(--text-primary);border:1px solid var(--accent-cyan);border-radius:var(--radius-sm);padding:3px var(--sp-xs);font-size:.8rem;width:100%;font-family:var(--font-body)}.pm-list{flex:1;overflow-y:auto;list-style:none;padding:var(--sp-xs) 0}.pm-item{display:flex;align-items:center;gap:var(--sp-xs);padding:6px var(--sp-sm);cursor:pointer;transition:background var(--tx-fast);position:relative;min-height:34px}.pm-item:hover{background:var(--bg-tertiary)}.pm-item.active{background:#7fffff12;border-left:3px solid var(--accent-cyan)}.pm-item.selected{background:#7fffff0a;border-left:3px solid var(--accent-cyan-dim)}.pm-item--drop-target{background:#7fffff24!important;outline:1px dashed var(--accent-cyan);outline-offset:-2px}.pm-item-expand-btn{display:flex;align-items:center;justify-content:center;width:16px;height:16px;flex-shrink:0;background:none;border:none;padding:0;cursor:pointer;border-radius:var(--radius-sm);transition:var(--tx-fast)}.pm-item-expand-btn:hover{background:#7fffff14}.pm-item-expand-btn--leaf{cursor:default;pointer-events:none}.pm-item-icon{color:var(--text-muted);font-size:.65rem;flex-shrink:0}.pm-item.active .pm-item-expand-btn .pm-item-icon{color:var(--accent-cyan)}.pm-item .pm-item-icon--published,.pm-item.active .pm-item-icon--published{color:#f59e0b}.pm-item--child{border-left:1px solid var(--border-dim)}.pm-item--child:last-of-type{border-bottom-left-radius:var(--radius-sm)}.pm-item-name{flex:1;font-size:.9rem;color:var(--text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.pm-item-actions{display:none;gap:2px}.pm-item:hover .pm-item-actions{display:flex}.pm-action-btn{width:20px;height:20px;display:flex;align-items:center;justify-content:center;font-size:.7rem;color:var(--text-muted);border:1px solid transparent;border-radius:var(--radius-sm);transition:var(--tx-fast)}.pm-action-btn:hover{color:var(--accent-cyan);border-color:var(--border-active)}.pm-delete-btn:hover{color:var(--accent-red)!important;border-color:var(--accent-red)!important}.pm-empty{padding:var(--sp-md) var(--sp-sm);color:var(--text-muted);font-size:.75rem;text-align:center}.pm-footer{border-top:1px solid var(--border-dim);padding:var(--sp-sm);padding-bottom:calc(var(--sp-sm) + var(--timeline-clearance, 0px));flex-shrink:0;transition:padding-bottom var(--tx-fast);display:flex;flex-direction:column;gap:6px}.pm-help-btn{width:100%;justify-content:center;letter-spacing:.08em;opacity:.9;font-size:.7rem}.pm-help-btn:hover{opacity:1}.pm-change-folder-btn{width:100%;justify-content:center;letter-spacing:.08em;opacity:.9;font-size:.7rem}.pm-change-folder-btn:hover{opacity:1}.media-card-host{position:absolute;top:0;left:0;transform-origin:top left}.media-card{position:relative;width:140px;min-height:88px;background:var(--bg-card);border:1px solid var(--cluster-color, var(--accent-cyan));border-radius:var(--radius-sm);color:var(--text-primary);cursor:grab;-webkit-user-select:none;user-select:none;transition:min-height .15s ease,box-shadow .15s ease,border-color .15s ease,width .15s ease;box-shadow:var(--card-shadow-rest);animation:node-appear .2s ease-out;display:flex;flex-direction:column;overflow:hidden;z-index:10;touch-action:none}.media-card:after{content:"";position:absolute;inset:-2px;border:1px solid rgba(255,191,0,calc(var(--mirror-overlay-alpha, 0) * .7));box-shadow:0 0 14px rgba(255,191,0,calc(var(--mirror-overlay-alpha, 0) * .45));pointer-events:none;opacity:var(--mirror-overlay-alpha, 0)}.media-card:hover,.media-card.expanded{min-height:160px;width:200px;box-shadow:var(--card-shadow-hover);z-index:20;border-color:var(--cluster-color, var(--accent-cyan))}.media-card.dragging{cursor:grabbing;z-index:100;box-shadow:var(--card-shadow-dragging);opacity:.92}.card-accent-bar{height:3px;background:var(--cluster-color, var(--accent-cyan));flex-shrink:0;opacity:.8}.card-header{display:flex;align-items:center;gap:4px;padding:4px 6px 2px;flex-shrink:0}.card-type-icon{font-size:.7rem;color:var(--cluster-color, var(--accent-cyan));line-height:1}.card-type-label{font-family:var(--font-display);font-size:.6rem;letter-spacing:.1em;color:var(--text-muted)}.card-thumbnail{height:50px;overflow:hidden;flex-shrink:0}.card-thumbnail img{width:100%;height:100%;object-fit:cover;opacity:.7}.card-title{font-family:var(--font-body);font-size:.7rem;font-weight:700;line-height:1.3;padding:4px 6px;color:var(--text-primary);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;flex-shrink:0}.media-card.expanded .card-title{-webkit-line-clamp:3}.card-snippet{font-size:.65rem;color:var(--text-secondary);padding:0 6px 4px;line-height:1.4;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;flex:1;animation:fade-in .1s ease-out}.card-status-dot{position:absolute;top:6px;right:6px;width:6px;height:6px;border-radius:50%;background:var(--cluster-color, var(--accent-cyan));animation:pulse-cyan 2s ease-in-out infinite}.card-cross-session-indicator{position:absolute;top:5px;right:18px;min-width:12px;height:12px;border-radius:999px;border:1px solid color-mix(in srgb,var(--accent-cyan-dim) 60%,transparent);color:var(--accent-cyan-dim);background:color-mix(in srgb,var(--accent-cyan-dim) 14%,transparent);font-family:var(--font-display);font-size:.53rem;line-height:1;display:inline-flex;align-items:center;justify-content:center;padding:0 3px}.card-staged-edit-badge{position:absolute;top:5px;left:5px;min-width:14px;height:14px;padding:0 4px;border-radius:999px;border:1px solid color-mix(in srgb,var(--accent-purple, #b794f4) 65%,transparent);background:color-mix(in srgb,var(--accent-purple, #b794f4) 22%,var(--bg-card, transparent));color:var(--accent-purple, var(--text-primary));font-family:var(--font-display);font-weight:700;font-size:.62rem;line-height:1;display:inline-flex;align-items:center;justify-content:center;pointer-events:none;animation:staged-edit-pulse 2.4s ease-in-out infinite}@keyframes staged-edit-pulse{0%,to{box-shadow:0 0 color-mix(in srgb,var(--accent-purple, #b794f4) 32%,transparent)}50%{box-shadow:0 0 0 4px color-mix(in srgb,var(--accent-purple, #b794f4) 0%,transparent)}}.card-staged-edit-badge--processing{animation:none;padding:0;background:color-mix(in srgb,var(--accent-purple, #b794f4) 10%,var(--bg-card, transparent))}.card-staged-edit-spinner{display:block;width:10px;height:10px;border-radius:50%;border:1.5px solid color-mix(in srgb,var(--accent-purple, #b794f4) 28%,transparent);border-top-color:var(--accent-purple, var(--text-primary));animation:staged-edit-spin .9s linear infinite}@keyframes staged-edit-spin{to{transform:rotate(360deg)}}.card-incoming-changes-indicator{position:absolute;top:5px;right:28px;min-width:12px;height:12px;border-radius:999px;border:1px solid color-mix(in srgb,var(--accent-amber) 60%,transparent);color:var(--accent-amber);background:color-mix(in srgb,var(--accent-amber) 14%,transparent);font-family:var(--font-display);font-size:.53rem;line-height:1;display:inline-flex;align-items:center;justify-content:center;padding:0 3px;cursor:pointer}.card-bloom-caret{position:absolute;left:calc(100% + 6px);top:50%;transform:translateY(-50%);width:20px;height:20px;display:flex;align-items:center;justify-content:center;background:var(--bg-card);border:1px solid var(--cluster-color, var(--accent-cyan));border-radius:50%;color:var(--cluster-color, var(--accent-cyan));font-size:.75rem;line-height:1;cursor:pointer;opacity:1;transition:transform .2s ease,background .15s ease;z-index:25;padding:0}.card-bloom-caret:hover{background:color-mix(in srgb,var(--cluster-color, var(--accent-cyan)) 20%,transparent)}.card-bloom-caret.active{background:color-mix(in srgb,var(--cluster-color, var(--accent-cyan)) 30%,transparent);transform:translateY(-50%) rotate(90deg)}.media-card.dimmed{opacity:var(--card-dimmed-opacity);filter:saturate(.88) brightness(var(--card-dimmed-brightness));pointer-events:none;transition:opacity .2s ease,filter .2s ease}.card-mirror-overlay{position:absolute;left:6px;bottom:6px;display:flex;flex-direction:column;gap:2px;pointer-events:none}.card-mirror-badge{font-family:var(--font-display);font-size:.6rem;font-weight:600;letter-spacing:.04em;color:var(--accent-amber);border:1px solid var(--border-mirror-badge);background:var(--bg-mirror-badge);border-radius:var(--radius-sm);padding:1px 4px;width:fit-content}.card-mirror-meta{display:flex;gap:4px;font-size:.55rem;color:var(--text-secondary);background:var(--bg-mirror-meta);border:1px solid var(--border-mirror-meta);padding:1px 4px}.media-card.multi-selected{box-shadow:0 0 0 2px var(--accent-cyan),0 0 14px #7fffff73;outline:none}.cp-comment{position:absolute;top:0;left:0;width:180px;background:var(--bg-c-perspective-comment);border:1px solid var(--c-perspective);box-shadow:var(--glow-amber);padding:8px 10px;pointer-events:auto;z-index:20;transform-origin:top left;animation:cp-fade-in .35s ease-out forwards;cursor:grab;-webkit-user-select:none;user-select:none}.cp-comment.dragging{cursor:grabbing;z-index:30}.cp-comment.dimmed{opacity:.3}@keyframes cp-fade-in{0%{opacity:0}to{opacity:1}}.cp-comment-header{display:flex;align-items:center;gap:4px}.cp-comment-icon{color:var(--c-perspective);font-size:.85rem;line-height:1}.cp-comment-label{font-family:var(--font-display);font-size:.8rem;letter-spacing:.08em;color:var(--c-perspective);flex:1}.cp-comment-regen,.cp-comment-collapse{background:none;border:none;color:var(--text-muted);cursor:pointer;font-size:.7rem;line-height:1;padding:0;font-family:inherit}.cp-comment-regen{font-size:1rem}.cp-comment-regen:hover,.cp-comment-collapse:hover{color:var(--text-secondary)}.cp-comment-regen:disabled{opacity:.4;cursor:default}.cp-comment-body{font-family:var(--font-body);font-size:.68rem;color:var(--text-secondary);line-height:1.45;margin:0;max-height:0;overflow:hidden;transition:max-height .25s ease,margin-top .25s ease}.cp-comment:hover 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var(--tx-fast)}.hero-unsplash-thumb:hover:not(:disabled){border-color:var(--accent-cyan);box-shadow:var(--glow-cyan)}.hero-unsplash-thumb:disabled{opacity:.5;cursor:not-allowed}.hero-unsplash-thumb img{width:100%;height:100%;object-fit:cover;opacity:.85;display:block}.hero-error{font-size:.75rem;color:var(--accent-red);font-family:var(--font-display);padding:0 var(--sp-sm) var(--sp-xs);margin:0}.pdf-viewer-root{display:flex;flex-direction:column;align-items:center;width:100%;height:100%;overflow:auto;padding:16px 0;box-sizing:border-box}.pdf-viewer-status,.pdf-viewer-error{font-family:var(--font-mono, monospace);font-size:13px;color:var(--text-muted, #888);padding:24px;text-align:center}.pdf-viewer-error{color:var(--accent-danger, #c45)}.pdf-viewer-pages{display:flex;flex-direction:column;align-items:center;gap:12px;width:100%}.pdf-viewer-page{background:#fff;box-shadow:0 1px 4px 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18%,transparent)}.detail-backlink-title{font-size:.74rem;max-width:220px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.detail-backlink-session{font-family:var(--font-display);font-size:.66rem;color:var(--accent-cyan-dim);letter-spacing:.05em;text-transform:uppercase}.detail-footer-actions{display:flex;align-items:center;gap:var(--sp-xs);flex-wrap:wrap;justify-content:flex-end}.detail-footer-btn{min-width:84px;height:30px;display:inline-flex;align-items:center;justify-content:center;padding:0 10px;border:1px solid;border-radius:var(--radius-sm);background:transparent;font-family:var(--font-display);font-size:.75rem;font-weight:600;letter-spacing:.04em;transition:box-shadow var(--tx-fast),border-color var(--tx-fast),color var(--tx-fast),opacity var(--tx-fast)}.detail-footer-btn--accent{color:var(--accent-cyan);border-color:color-mix(in srgb,var(--accent-cyan) 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var(--text-primary))}.staged-edit-card-apply:hover,.staged-edit-card-apply:focus-visible{background:color-mix(in srgb,var(--accent-purple, #b794f4) 18%,transparent)}.card-move-ghost{position:fixed;z-index:9999;display:flex;align-items:center;gap:var(--sp-xs);padding:4px 10px;background:var(--bg-secondary);border:1px solid var(--accent-cyan);border-radius:var(--radius-sm);color:var(--accent-cyan);font-family:var(--font-display);font-size:.75rem;letter-spacing:.04em;text-transform:uppercase;box-shadow:var(--shadow-md),0 0 14px #7fffff73;pointer-events:none;-webkit-user-select:none;user-select:none}.card-move-ghost-icon{font-size:.85rem}.media-card.move-source{opacity:.4;transition:opacity 80ms linear}.media-card.card-nest-target{outline:2px solid var(--accent-cyan);outline-offset:3px;box-shadow:0 0 16px #7fffff66;transition:outline 80ms linear,box-shadow 80ms linear}.toast-stack{position:fixed;bottom:var(--sp-md, 1rem);right:var(--sp-md, 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currentColor;color:inherit;cursor:pointer;font-family:var(--font-display);font-size:.7rem;letter-spacing:.06em;text-transform:uppercase;padding:2px 8px;border-radius:var(--radius-sm);flex-shrink:0;opacity:.85}.toast-action:hover{opacity:1}@keyframes help-pulse{0%,to{opacity:1;transform:scale(1)}50%{opacity:.45;transform:scale(.85)}}@keyframes help-blink{0%,to{opacity:1}50%{opacity:0}}.help-backdrop{position:fixed;inset:0;background:#000000b8;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:1200;display:flex;align-items:center;justify-content:center;padding:var(--sp-md);animation:help-backdrop-in .12s ease-out}@keyframes help-backdrop-in{0%{opacity:0}to{opacity:1}}.help-modal{width:min(920px,calc(100vw - 2rem));height:min(640px,calc(100dvh - 2rem));background:var(--bg-secondary);border:1px solid var(--border-active);border-radius:var(--radius-md);box-shadow:var(--shadow-lg),var(--glow-cyan);display:flex;flex-direction:column;overflow:hidden;animation:help-modal-in .15s ease-out}@keyframes help-modal-in{0%{opacity:0;transform:translateY(8px) scale(.98)}to{opacity:1;transform:translateY(0) scale(1)}}.help-header{display:flex;align-items:center;justify-content:space-between;padding:var(--sp-sm) var(--sp-md);border-bottom:1px solid var(--border-dim);flex-shrink:0;background:var(--bg-tertiary)}.help-header__title{display:inline-flex;align-items:center;gap:6px;font-family:var(--font-display);font-size:.78rem;font-weight:700;letter-spacing:.08em;color:var(--accent-cyan)}.help-header__icon{width:14px;height:14px;flex-shrink:0}.help-header__close{font-size:.78rem;padding:var(--sp-xs) var(--sp-sm);color:var(--text-muted);line-height:1}.help-header__close:hover{color:var(--text-primary)}.help-body{flex:1;display:flex;overflow:hidden;min-height:0}.help-nav{width:200px;flex-shrink:0;border-right:1px solid var(--border-dim);background:var(--bg-tertiary);overflow-y:auto;padding:var(--sp-sm) 0}.help-nav__list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:2px}.help-nav__item{display:flex;align-items:center;gap:var(--sp-sm);width:100%;padding:7px var(--sp-md);background:none;border:none;border-left:2px solid transparent;cursor:pointer;text-align:left;color:var(--text-secondary);transition:background .1s,color .1s,border-color .1s}.help-nav__item:hover{background:color-mix(in oklab,var(--accent-cyan) 6%,transparent);color:var(--text-primary)}.help-nav__item--active{border-left-color:var(--accent-cyan);background:color-mix(in oklab,var(--accent-cyan) 10%,transparent);color:var(--accent-cyan)}.help-nav__num{font-family:var(--font-display);font-size:.62rem;font-weight:700;color:var(--text-muted);flex-shrink:0;letter-spacing:.04em}.help-nav__item--active .help-nav__num{color:color-mix(in oklab,var(--accent-cyan) 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2rem);flex-direction:column}.help-nav{width:100%;height:auto;border-right:none;border-bottom:1px solid var(--border-dim);overflow-x:auto;overflow-y:hidden;padding:var(--sp-xs) 0}.help-nav__list{flex-direction:row;padding:0 var(--sp-sm)}.help-nav__item{flex-direction:column;align-items:center;gap:2px;padding:5px var(--sp-sm);border-left:none;border-bottom:2px solid transparent;white-space:nowrap}.help-nav__item--active{border-left-color:transparent;border-bottom-color:var(--accent-cyan)}.help-nav__num{display:none}}.notebook-page{--timeline-clearance: 0px;display:flex;width:100%;height:100dvh;overflow:hidden;background:var(--bg-primary);position:relative}.notebook-page--timeline-open{--timeline-clearance: calc(var(--timeline-bar-height) + var(--sp-sm))}.notebook-sidebar-left{width:var(--sidebar-left-w);flex-shrink:0;border-right:1px solid var(--border-dim);display:flex;flex-direction:column;overflow:hidden;background:var(--bg-secondary);transition:width .2s ease,border-color .2s ease}.notebook-sidebar-left.collapsed{width:0;border-right-color:transparent}.sidebar-toggle-btn{background:none;border:none;color:var(--text-muted);cursor:pointer;font-size:1rem;line-height:1;padding:2px 4px;flex-shrink:0}.sidebar-toggle-btn:hover{color:var(--text-primary)}.notebook-canvas-area{flex:1;display:flex;flex-direction:column;overflow:hidden;position:relative;padding-bottom:var(--timeline-clearance);transition:padding-bottom var(--tx-fast)}.notebook-topbar{display:flex;align-items:center;justify-content:space-between;padding:var(--sp-sm) var(--sp-md);background:var(--bg-secondary);flex-shrink:0;gap:var(--sp-sm)}.notebook-topbar-left{display:flex;align-items:center;gap:var(--sp-sm);min-width:0}.notebook-title{font-family:var(--font-display);font-size:1.25rem;font-weight:700;letter-spacing:.02em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.notebook-topbar-right{display:flex;align-items:center;gap:var(--sp-sm);flex-shrink:0;flex-wrap:wrap;justify-content:flex-end}.topbar-btn{white-space:nowrap;font-size:.85rem!important}.topbar-insights-btn{display:inline-flex;align-items:center;gap:6px}.topbar-add-menu{position:relative;display:inline-block}.topbar-add-menu-pop{position:absolute;top:calc(100% + 6px);right:0;min-width:200px;background:var(--bg-panel);border:1px solid var(--border-active);box-shadow:0 4px 16px #00000080;z-index:1000;display:flex;flex-direction:column;padding:4px 0}.topbar-add-menu-item{background:none;border:none;color:var(--text-secondary);font-family:var(--font-body);font-size:.9rem;text-align:left;padding:8px 14px;cursor:pointer;width:100%}.topbar-add-menu-item:hover,.topbar-add-menu-item:focus-visible{background:#7fffff12;color:var(--accent-cyan)}.topbar-insights-dot{width:7px;height:7px;border-radius:50%;background:var(--accent-amber);display:inline-block;flex-shrink:0}.topbar-btn:not(:disabled):hover,.topbar-btn:not(:disabled):focus-visible{box-shadow:var(--shadow-md),var(--glow-cyan)}.topbar-btn-amber{color:var(--accent-amber);border-color:color-mix(in oklab,var(--accent-amber) 65%,transparent);background:transparent}.topbar-btn-amber:hover,.topbar-btn-amber:focus-visible{color:var(--accent-amber);border-color:var(--accent-amber);box-shadow:var(--shadow-md),var(--glow-amber)}.topbar-icon-btn{padding:var(--sp-xs);display:flex;align-items:center;justify-content:center;flex-shrink:0;aspect-ratio:1}.btn-ghost.active{color:var(--accent-cyan);border-color:var(--border-active)}.notebook-sidebar-right{width:var(--sidebar-right-w);flex-shrink:0;border-left:1px solid var(--border-dim);display:flex;flex-direction:column;overflow:hidden;background:var(--bg-secondary);animation:slide-in-left .15s ease-out}.notebook-thought-partner-host{position:fixed;left:0;right:0;bottom:var(--timeline-clearance);width:100%;height:min(52dvh,460px);border-top:1px solid var(--border-dim);background:var(--bg-secondary);box-shadow:0 -10px 28px #00000047;overflow:hidden;z-index:1010;animation:slide-in-up .18s ease-out}.notebook-thought-partner-toggle{position:fixed;left:calc(var(--sidebar-left-w) + var(--sp-md));bottom:calc(var(--sp-md) + var(--timeline-clearance));transition:left .25s ease,bottom .25s ease;z-index:1011;width:46px;height:46px;padding:0;border-radius:999px;display:grid;place-items:center;border-color:var(--tp-border);background:var(--bg-overlay);color:var(--text-primary);box-shadow:var(--shadow-sm);-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.notebook-page--sidebar-hidden .notebook-thought-partner-toggle{left:var(--sp-md)}.notebook-thought-partner-toggle:hover,.notebook-thought-partner-toggle:focus-visible{border-color:var(--accent-cyan-dim);box-shadow:var(--shadow-md),var(--glow-cyan)}.notebook-thought-partner-icon{width:20px;height:20px;transition:transform var(--tx-fast)}.notebook-thought-partner-toggle:not(.active) .notebook-thought-partner-icon{transform-origin:50% 50%;animation:tp-hex-idle-spin 12s linear infinite}.notebook-thought-partner-toggle:not(.active):hover .notebook-thought-partner-icon,.notebook-thought-partner-toggle:not(.active):focus-visible .notebook-thought-partner-icon{animation:tp-hex-hover-spin .65s ease-in-out 1}.notebook-thought-partner-toggle.active{color:var(--text-primary);border-color:var(--border-active);box-shadow:var(--shadow-sm)}.notebook-thought-partner-toggle.active:hover,.notebook-thought-partner-toggle.active:focus-visible{color:var(--accent-cyan);border-color:var(--accent-cyan);box-shadow:var(--shadow-md),var(--glow-cyan);text-shadow:0 0 10px rgba(127,255,255,.45)}.notebook-thought-partner-toggle.active:hover .notebook-thought-partner-icon,.notebook-thought-partner-toggle.active:focus-visible .notebook-thought-partner-icon{transform:rotate(90deg)}.notebook-thought-partner-toggle.is-open{display:none}@keyframes slide-in-up{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.canvas-loading,.canvas-empty{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:var(--sp-md)}.loading-text{font-family:var(--font-display);font-size:1.25rem;font-weight:500;color:var(--accent-cyan-dim);animation:blink 1.4s ease-in-out infinite}.empty-hint{font-family:var(--font-display);font-size:1.25rem;font-weight:600;color:var(--text-secondary)}.empty-sub{color:var(--text-muted);font-size:.85rem;margin-top:-var(--sp-sm)}@media (max-width: calc(64rem - 1px)){.notebook-thought-partner-toggle{left:var(--sp-sm);bottom:calc(var(--sp-sm) + var(--timeline-clearance))}}@media(prefers-reduced-motion:reduce){.notebook-thought-partner-toggle:not(.active) .notebook-thought-partner-icon,.notebook-thought-partner-toggle:not(.active):hover .notebook-thought-partner-icon,.notebook-thought-partner-toggle:not(.active):focus-visible .notebook-thought-partner-icon{animation:none}}.publish-picker-popover{position:absolute;top:calc(100% + 6px);right:0;z-index:300;background:var(--bg-panel);border:1px solid var(--border-dim);border-radius:var(--radius-md);box-shadow:0 8px 24px color-mix(in srgb,var(--bg-base) 50%,transparent);padding:10px;min-width:220px;display:flex;flex-direction:column;gap:6px}.publish-picker-label{font-family:var(--font-display);font-size:.6rem;letter-spacing:.08em;color:var(--text-muted);margin:0 0 4px}.publish-picker-option{display:flex;flex-direction:column;gap:2px;padding:8px 10px;border:1px solid var(--border-dim);border-radius:var(--radius-sm);background:transparent;cursor:pointer;text-align:left;transition:border-color .15s,background .15s}.publish-picker-option:hover,.publish-picker-option.active{background:color-mix(in srgb,var(--accent-amber) 8%,var(--bg-card));border-color:color-mix(in srgb,var(--accent-amber) 45%,transparent)}.publish-picker-title{font-family:var(--font-display);font-size:.65rem;letter-spacing:.08em;color:var(--accent-amber)}.publish-picker-desc{font-size:.7rem;color:var(--text-muted)}.notebook-page{--mobile-sidebar-width: min(82vw, 320px);--topbar-btn-size-md: .78rem;--topbar-btn-size-sm: .72rem}@media (max-width: calc(80rem - 1px)){.notebook-topbar-right{gap:var(--sp-xs)}.notebook-topbar .topbar-btn{font-size:var(--topbar-btn-size-md)}.notebook-sidebar-right{width:min(44vw,340px)}}@media (max-width: calc(64rem - 1px)){.notebook-page{overflow-x:hidden}.notebook-page:not(.notebook-page--sidebar-hidden) .notebook-thought-partner-toggle{left:calc(var(--mobile-sidebar-width) + var(--sp-sm))}.notebook-sidebar-left{position:absolute;left:0;top:0;bottom:0;width:var(--mobile-sidebar-width);z-index:45;border-right:1px solid var(--border-dim);box-shadow:var(--shadow-lg);transition:transform var(--tx-fast),border-color var(--tx-fast)}.notebook-sidebar-left.collapsed{width:var(--mobile-sidebar-width);transform:translate(-100%);border-right-color:transparent}.notebook-topbar{flex-wrap:wrap;align-items:flex-start;padding:var(--sp-sm);row-gap:var(--sp-xs)}.notebook-topbar-left,.notebook-topbar-right{width:100%}.notebook-topbar-right{justify-content:flex-start}.notebook-title{font-size:1.05rem;max-width:calc(100vw - 88px)}.notebook-sidebar-right{position:absolute;left:0;right:0;bottom:var(--timeline-bar-height);width:100%;height:min(56dvh,520px);z-index:35;border-left:none;border-top:1px solid var(--border-dim);box-shadow:0 -12px 30px #00000047;animation:slide-in-up .15s ease-out}.publish-picker-popover{right:auto;left:0;width:min(72vw,260px)}}@media (max-width: calc(40rem - 1px)){.notebook-title{max-width:calc(100vw - 98px);font-size:.96rem}.notebook-topbar .topbar-btn{font-size:var(--topbar-btn-size-sm);padding:.26rem .44rem}.topbar-icon-btn{padding:.3rem}.publish-picker-popover{width:min(88vw,260px)}}