:root{color-scheme:light;--bg: #ffffff;--bg-accent: linear-gradient(180deg, #ffffff 0%, #fbfcff 100%);--panel: rgba(255, 255, 255, .97);--panel-strong: #ffffff;--text: #1e2430;--muted: #6c7280;--border: rgba(120, 128, 145, .22);--shadow: 0 24px 70px rgba(31, 41, 55, .13);--primary: #2f6fed;--primary-soft: rgba(47, 111, 237, .12);--success: #dff7e7;--success-text: #14633d;--danger: #c32845;--drop: #5b7cfa;--hover: rgba(30, 36, 48, .06);--space-1: 4px;--space-2: 8px;--space-3: 12px;--space-4: 16px;--space-5: 20px;--space-6: 24px;--space-7: 28px;--radius-sm: 10px;--radius-md: 14px;--radius-lg: 18px;--radius-xl: 24px;--radius-pill: 999px;--font-size-caption: .76rem;--font-size-sm: .86rem;--font-size-body: .95rem;--font-size-title: 1.4rem;--line-height-body: 1.55;--view-max-width: 860px}*{box-sizing:border-box}body{margin:0;min-width:320px;min-height:100vh;background:var(--bg-accent);color:var(--text);font-family:Plus Jakarta Sans,Segoe 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var(--border)}.editor-panel{padding:18px;background:linear-gradient(180deg,#fffcf7f7,#ffffffd6)}.empty-state-panel{padding:28px}.panel-head{display:flex;justify-content:space-between;align-items:flex-start;gap:12px;margin-bottom:18px}.compact-head{margin-bottom:10px}.eyebrow{margin:0;color:var(--muted);font-size:.77rem;text-transform:uppercase;letter-spacing:.12em}.panel h2,.panel h3{margin:4px 0 0}.book-hierarchy-map{margin-top:8px;padding:10px 12px;border-radius:14px;background:#ffffffa3;border:1px solid rgba(120,128,145,.16)}.book-hierarchy-map p{margin:0 0 6px;font-size:.84rem;color:var(--muted);font-weight:600}.book-hierarchy-map pre{margin:0;white-space:pre;overflow-x:auto;font-family:IBM Plex Mono,SFMono-Regular,Menlo,Monaco,Consolas,Liberation Mono,Courier New,monospace;font-size:.77rem;line-height:1.38;color:var(--text)}.book-model-caption{margin:2px 0 0;color:var(--muted);font-size:.84rem}.ghost-button,.search-button,.primary-button,.notebook-pill,.tool-chip{border:1px solid 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rgba(91,124,250,.35)}@keyframes dropPulse{0%{opacity:.62;transform:scaleX(.98)}to{opacity:1;transform:scaleX(1)}}.editor-column{min-width:0}.editor-focus .editor-panel,.editor-zen .editor-panel{max-width:1180px;margin:0 auto}.editor-zen .editor-header-row{border-bottom:1px solid rgba(120,128,145,.12);padding-bottom:14px}.editor-toolbar{display:flex;flex-wrap:wrap;gap:10px;padding:6px;background:#ffffffad;border-radius:20px}.toolbar-group{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.toolbar-group-advanced{opacity:.96}.toolbar-more-toggle{display:none}.editor-header-row{display:flex;justify-content:flex-end;align-items:center;gap:16px;padding:10px 10px 6px}.shortcut-help{margin:8px 0 0;color:#6c7280c7;font-size:.78rem}.view-toggle{display:inline-flex;gap:4px;padding:4px;border-radius:999px;background:#1e243012}.view-toggle-button{border:0;border-radius:999px;background:transparent;color:var(--muted);padding:7px 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span{display:inline-block;margin-left:8px;color:var(--muted);font-size:.84rem}.summary-search-result-item p{margin:6px 0 0;color:var(--muted)}.editor-surface h1{margin:10px 0 14px;font-size:clamp(2rem,4vw,3.5rem);line-height:1.02;font-family:Lora,Georgia,serif;font-weight:600;letter-spacing:-.01em}.editor-title-input{width:100%;border:0;background:transparent;color:var(--text);font-size:clamp(1.7rem,3.5vw,2.8rem);line-height:1.1;font-family:Lora,Georgia,serif;font-weight:600;letter-spacing:-.01em;padding:0;margin:8px 0 10px;caret-color:var(--primary)}.book-page-meta-row{display:flex;align-items:center;gap:12px;margin-bottom:6px;font-size:12px;font-weight:500;color:var(--muted);letter-spacing:0}.book-page-meta-row.compact{font-size:var(--font-size-caption)}.book-page-meta-row span+span:before{content:"·";margin-right:12px;opacity:.5}.book-page-kind{font-weight:600;font-size:11px;text-transform:uppercase;letter-spacing:.07em;color:var(--primary);background:var(--primary-soft);padding:3px 8px;border-radius:6px}.restore-message-inline{margin:-2px 0 14px;color:var(--primary);font-size:.84rem;font-weight:700}.page-loading-state{display:flex;align-items:center;gap:14px;max-width:560px;margin:70px auto;padding:18px 20px;border:1px solid rgba(120,128,145,.14);border-radius:18px;background:var(--panel-strong);color:var(--text)}.page-loading-state p{margin:2px 0 0;color:var(--muted);font-size:.92rem}.page-loading-dot{width:12px;height:12px;flex-shrink:0;border-radius:50%;background:var(--primary);box-shadow:0 0 0 8px #2f6fed1f}.document-stats-row{display:flex;flex-wrap:wrap;gap:10px;margin:-6px 0 14px;color:var(--muted);font-size:.86rem}.document-stats-row span{padding-right:10px;border-right:1px solid rgba(120,128,145,.22)}.document-stats-row span:last-child{border-right:0}.empty-notebook-view{display:flex;flex-direction:column;align-items:center;gap:22px;padding:48px 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