:root{--bg-app: #f7f5f0;--bg-page: #fdfcf9;--bg-surface: #f2efe9;--bg-elevated: #ffffff;--text-primary: #1c1b18;--text-secondary: #57534e;--text-muted: #78716c;--border-subtle: #e5e0d8;--border-strong: #d6cfc2;--accent-primary: #1d4ed8;--accent-soft: #eff6ff;--success-color: #15803d;--success-soft: #dcfce7;--warn-color: #b45309;--warn-soft: #fef3c7;--danger-color: #b91c1c;--danger-soft: #fee2e2;--font-serif: "Newsreader", Georgia, "Times New Roman", serif;--font-sans: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;--font-mono: "JetBrains Mono", monospace}[data-theme=dark]{--bg-app: #121316;--bg-page: #181a1f;--bg-surface: #1f2229;--bg-elevated: #242830;--text-primary: #eceae4;--text-secondary: #a8a29e;--text-muted: #78716c;--border-subtle: #2b2f38;--border-strong: #3b404c;--accent-primary: #60a5fa;--accent-soft: #1e293b;--success-color: #4ade80;--success-soft: #143321;--warn-color: #fbbf24;--warn-soft: #332711;--danger-color: #f87171;--danger-soft: #3b1818}*{box-sizing:border-box}body{margin:0;background-color:var(--bg-app);color:var(--text-primary);font-family:var(--font-sans);line-height:1.5;-webkit-font-smoothing:antialiased}.reader-topbar{position:sticky;top:0;z-index:40;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:8px 18px;background:var(--bg-page);border-bottom:1px solid var(--border-subtle);font-size:13px}.topbar-left,.topbar-right{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.brand-mark{font-family:var(--font-serif);font-weight:600;font-size:18px;letter-spacing:-.02em;padding:0 4px}.book-selector{background:var(--bg-surface);color:var(--text-primary);border:1px solid var(--border-subtle);border-radius:6px;padding:5px 8px;font-size:12.5px;font-weight:500}.reading-pos-pill{background:var(--bg-surface);color:var(--text-secondary);padding:4px 8px;border-radius:999px;font-family:var(--font-mono);font-size:11.5px}.reader-search-input{width:240px;padding:5px 10px;border-radius:6px;border:1px solid var(--border-subtle);background:var(--bg-surface);color:var(--text-primary);font-size:12.5px}.btn-quiet{background:var(--bg-surface);color:var(--text-primary);border:1px solid var(--border-subtle);border-radius:6px;padding:5px 10px;font-size:12px;font-weight:500;cursor:pointer;transition:background .15s ease}.btn-quiet:hover:not(:disabled){border-color:var(--border-strong)}.btn-quiet.active-toggle{background:var(--accent-soft);border-color:var(--accent-primary);color:var(--accent-primary)}.btn-primary{background:var(--accent-primary);color:#fff;border:none;border-radius:6px;padding:6px 13px;font-size:12.5px;font-weight:600;cursor:pointer}.btn-primary:disabled{opacity:.5;cursor:not-allowed}.anchor-pill{background:var(--accent-soft);color:var(--accent-primary);border:1px solid transparent;border-radius:999px;padding:3px 9px;font-family:var(--font-mono);font-size:11px;cursor:pointer}.anchor-pill:hover{border-color:var(--accent-primary)}.reader-workspace{display:flex;min-height:calc(100vh - 49px)}.toc-sidebar{width:265px;flex-shrink:0;background:var(--bg-page);border-right:1px solid var(--border-subtle);padding:16px 12px;overflow-y:auto;max-height:calc(100vh - 49px);position:sticky;top:49px}.toc-book-meta h2{font-family:var(--font-serif);font-size:16px;margin:0 0 4px}.toc-book-meta p{font-size:11.5px;color:var(--text-secondary);margin:0 0 14px}.toc-list{list-style:none;padding:0;margin:0}.toc-item button{width:100%;display:flex;align-items:baseline;gap:6px;text-align:left;background:transparent;border:none;color:var(--text-secondary);padding:5px 6px;border-radius:5px;font-size:12px;cursor:pointer}.toc-item.level-1 button{font-weight:600;color:var(--text-primary);margin-top:6px}.toc-item.level-2 button{padding-left:14px}.toc-item.level-3 button{padding-left:24px;font-size:11.5px}.toc-item.toc-active button{background:var(--accent-soft);color:var(--accent-primary);font-weight:600}.toc-num{font-family:var(--font-mono);font-size:11px;opacity:.75}.toc-title{flex:1}.toc-page{font-family:var(--font-mono);font-size:10.5px;opacity:.6}.book-scroll-container{flex:1;max-width:1180px;margin:0 auto;padding:24px 28px 80px}.prequestions-banner{background:var(--bg-page);border:1px solid var(--border-subtle);border-left:3px solid var(--accent-primary);border-radius:8px;padding:16px 20px;margin-bottom:24px}.prequestions-header h3{font-family:var(--font-serif);font-size:18px;margin:6px 0 4px}.prequestions-header p{font-size:12.5px;color:var(--text-secondary);margin:0 0 12px}.prequestion-item{border-top:1px solid var(--border-subtle);padding-top:10px;margin-top:10px}.pq-top-line{display:flex;align-items:baseline;gap:8px}.pq-number{font-family:var(--font-mono);font-weight:600;font-size:12px;color:var(--accent-primary)}.pq-text{flex:1;font-size:13.5px;font-weight:500;margin:0}.pq-guess-row{display:flex;align-items:center;gap:10px;margin-top:6px}.pq-guess-row input{flex:1;padding:6px 10px;border-radius:6px;border:1px solid var(--border-subtle);background:var(--bg-surface);color:var(--text-primary);font-size:13px}.pq-saved-indicator{font-size:11.5px;color:var(--success-color);font-weight:500}.book-page-sheet{background:var(--bg-page);border:1px solid var(--border-subtle);border-radius:10px;padding:36px 32px;box-shadow:0 2px 12px #00000008;transition:filter .25s ease}.book-page-blurred{filter:blur(11px);-webkit-user-select:none;user-select:none;pointer-events:none}.book-section-heading{border-bottom:1px solid var(--border-subtle);padding-bottom:18px;margin-bottom:24px;max-width:680px}.section-running-head{display:flex;justify-content:space-between;font-family:var(--font-mono);font-size:11.5px;color:var(--text-muted);text-transform:uppercase;letter-spacing:.04em;margin-bottom:8px}.book-section-heading h1{font-family:var(--font-serif);font-size:26px;font-weight:600;line-height:1.25;margin:0}.sec-num{color:var(--text-secondary);margin-right:6px}.paragraph-with-margin{display:grid;grid-template-columns:minmax(0,660px) minmax(240px,320px);gap:28px;align-items:start;margin-bottom:18px;padding:6px 0;border-radius:6px;transition:background-color .3s ease}.paragraph-with-margin.anchor-flash{background-color:var(--warn-soft)}.book-prose-col{position:relative;padding-left:38px}.page-gutter-num{position:absolute;left:0;top:4px;font-family:var(--font-mono);font-size:10.5px;color:var(--text-muted)}.book-paragraph-text{font-family:var(--font-serif);font-size:18px;line-height:1.68;margin:0;color:var(--text-primary)}.kind-derivation .book-paragraph-text{border-left:2px solid var(--border-strong);padding-left:14px}.kind-example .book-paragraph-text{background:var(--bg-surface);padding:14px 16px;border-radius:8px;font-size:16.5px}.book-equation-block{background:var(--bg-surface);border:1px solid var(--border-subtle);border-radius:8px;padding:12px 18px;margin:6px 0}.eq-caption{font-size:12px;color:var(--text-secondary);font-weight:500;margin-bottom:4px}.eq-math-row{display:flex;align-items:center;justify-content:space-between;overflow-x:auto}.eq-label-num{font-family:var(--font-mono);font-size:12px;color:var(--text-secondary);margin-left:12px}.paragraph-hover-tools{opacity:0;transition:opacity .15s ease;margin-top:4px}.book-prose-col:hover .paragraph-hover-tools{opacity:1}.btn-margin-note-trigger{background:transparent;border:none;color:var(--text-muted);font-size:11px;cursor:pointer;padding:0}.btn-margin-note-trigger:hover{color:var(--accent-primary)}.book-margin-col{display:flex;flex-direction:column;gap:10px;font-size:12.5px}.margin-resurfaced-guess,.margin-self-explain-card,.margin-highlight-card,.margin-note-card,.margin-note-composer{background:var(--bg-surface);border:1px solid var(--border-subtle);border-radius:8px;padding:10px 12px}.margin-resurfaced-guess.has-guess{border-left:3px solid var(--success-color)}.margin-card-top{display:flex;align-items:center;justify-content:space-between;font-size:11px;color:var(--text-secondary);margin-bottom:5px}.stub-pill{font-family:var(--font-mono);font-size:10.5px;font-weight:600;color:var(--accent-primary)}.stub-next-tag{background:var(--warn-soft);color:var(--warn-color);font-family:var(--font-mono);font-size:10px;font-weight:600;padding:1px 6px;border-radius:4px;text-transform:uppercase}.margin-pq-question,.margin-card-question{font-weight:500;margin:0 0 6px;color:var(--text-primary)}.margin-your-guess{background:var(--bg-elevated);padding:6px 8px;border-radius:5px}.margin-your-guess p{margin:2px 0 0;font-style:italic}.margin-self-explain-card textarea,.margin-note-composer textarea{width:100%;border:1px solid var(--border-subtle);border-radius:5px;padding:6px;font-size:12px;background:var(--bg-elevated);color:var(--text-primary);margin-bottom:6px}.margin-card-actions{display:flex;gap:6px}.margin-feedback-box,.margin-reveal-box{margin-top:8px;padding-top:6px;border-top:1px dashed var(--border-strong);font-size:11.5px}.margin-feedback-box ul{margin:4px 0 0;padding-left:16px}.margin-highlight-card blockquote{margin:0;padding-left:8px;border-left:2px solid var(--warn-color);font-family:var(--font-serif);font-style:italic}.between-sections-instruments{margin-top:32px;display:flex;flex-direction:column;gap:28px}.instrument-card{background:var(--bg-page);border:1px solid var(--border-subtle);border-radius:10px;padding:22px 24px}.instrument-header{display:flex;justify-content:space-between;align-items:flex-start;gap:16px;flex-wrap:wrap;border-bottom:1px solid var(--border-subtle);padding-bottom:14px;margin-bottom:16px}.instrument-badge{display:inline-block;font-family:var(--font-mono);font-size:11px;font-weight:600;color:var(--accent-primary);text-transform:uppercase;letter-spacing:.03em}.instrument-title{font-family:var(--font-serif);font-size:20px;margin:4px 0}.instrument-subtitle{font-size:13px;color:var(--text-secondary);margin:0}.instrument-meta-actions{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.cert-badge{border-radius:999px;padding:4px 10px;font-family:var(--font-mono);font-size:11px;font-weight:600;border:1px solid transparent;cursor:pointer}.cert-pass{background:var(--success-soft);color:var(--success-color)}.cert-fail{background:var(--danger-soft);color:var(--danger-color)}.certificate-drawer,.spec-editor-panel{background:var(--bg-surface);border:1px solid var(--border-subtle);border-radius:8px;padding:12px 16px;margin-bottom:16px;font-size:12px}.certificate-drawer-header,.spec-editor-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}.certificate-trace-list{font-family:var(--font-mono);font-size:11px;margin:0;padding-left:18px}.spec-formula-row{display:flex;align-items:center;gap:10px;margin-top:6px}.spec-formula-row label{width:140px;font-family:var(--font-mono);font-size:11.5px}.spec-formula-row input{flex:1;padding:5px 8px;font-family:var(--font-mono);font-size:12px;border:1px solid var(--border-subtle);border-radius:5px;background:var(--bg-elevated);color:var(--text-primary)}.verification-blocked-banner{background:var(--danger-soft);border:1px solid var(--danger-color);color:var(--danger-color);padding:18px 20px;border-radius:8px}.verification-blocked-banner h4{margin:0 0 6px;font-size:16px}.lab-controls-bar{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;background:var(--bg-surface);padding:10px 14px;border-radius:8px;margin-bottom:16px;font-size:12.5px}.predict-toggle-label{display:flex;align-items:center;gap:8px;cursor:pointer}.prediction-gate-card{background:var(--warn-soft);border:1px solid var(--warn-color);border-radius:8px;padding:12px 16px;margin-bottom:16px;display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap}.prediction-gate-buttons{display:flex;gap:8px}.btn-predict{background:var(--bg-elevated);color:var(--text-primary);border:1px solid var(--warn-color);border-radius:6px;padding:5px 11px;font-weight:600;font-size:12px;cursor:pointer}.prediction-feedback-pill{display:flex;justify-content:space-between;align-items:center;padding:9px 14px;border-radius:8px;margin-bottom:14px;font-size:12.5px}.pred-correct{background:var(--success-soft);color:var(--success-color)}.pred-mismatch{background:var(--accent-soft);color:var(--accent-primary)}.lab-main-grid{display:grid;grid-template-columns:290px 1fr;gap:24px;align-items:start}.lab-sliders-col h4{margin:0 0 12px;font-size:14px}.slider-row{margin-bottom:14px}.slider-label-line{display:flex;justify-content:space-between;font-size:12.5px;margin-bottom:4px}.slider-val-badge{font-family:var(--font-mono);font-weight:600;color:var(--accent-primary)}.slider-row input[type=range]{width:100%}.slider-range-hints{display:flex;justify-content:space-between;font-size:10.5px;color:var(--text-muted)}.lab-readouts-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:10px;margin-bottom:14px}.readout-box{background:var(--bg-surface);border:1px solid var(--border-subtle);border-radius:8px;padding:10px 12px;display:flex;flex-direction:column;gap:3px}.readout-label{font-size:11px;color:var(--text-secondary)}.readout-value{font-family:var(--font-mono);font-size:18px;color:var(--text-primary)}.readout-value small{font-size:12px;color:var(--accent-primary)}.lab-svg-wrapper{background:var(--bg-surface);border:1px solid var(--border-subtle);border-radius:8px;padding:12px}.lab-chart-svg{width:100%;height:auto;display:block}.chart-legend{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;font-size:11.5px;margin-top:6px}.legend-item{display:flex;align-items:center;gap:6px}.legend-swatch{width:12px;height:3px;display:inline-block}.lab-scope-footnote{font-size:11.5px;color:var(--text-secondary);margin:14px 0 0}.recall-prompt-bar{display:flex;justify-content:space-between;align-items:center;font-size:12.5px;margin-bottom:6px}.recall-textarea{width:100%;padding:12px;border-radius:8px;border:1px solid var(--border-strong);background:var(--bg-elevated);color:var(--text-primary);font-family:var(--font-serif);font-size:16px;line-height:1.5}.recall-action-row{display:flex;gap:10px;margin-top:10px}.recall-side-by-side{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:20px;padding-top:16px;border-top:1px solid var(--border-subtle)}.recall-col h4{margin:0 0 10px;font-size:14px}.recall-reader-prose{background:var(--bg-surface);padding:12px;border-radius:8px;font-family:var(--font-serif);font-size:15.5px;margin:0 0 10px}.recall-coverage-chips{display:flex;gap:6px;flex-wrap:wrap}.cov-chip{font-family:var(--font-mono);font-size:11px;padding:3px 8px;border-radius:999px}.cov-covered{background:var(--success-soft);color:var(--success-color)}.cov-partial{background:var(--warn-soft);color:var(--warn-color)}.cov-gap{background:var(--danger-soft);color:var(--danger-color)}.key-ideas-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:10px}.key-idea-item{display:flex;gap:10px;background:var(--bg-surface);padding:10px 12px;border-radius:8px;border-left:3px solid var(--border-strong);font-size:13px}.key-idea-item.status-covered{border-left-color:var(--success-color)}.key-idea-item.status-gap{border-left-color:var(--danger-color)}.key-idea-marker{font-family:var(--font-mono);font-weight:700;font-size:12px}.key-idea-body p{margin:0 0 4px}.matched-phrase{display:block;color:var(--text-secondary);font-style:italic;margin-bottom:6px}.summary-gate-details{margin-top:16px;background:var(--bg-surface);padding:10px 14px;border-radius:8px;font-size:13px}.summary-gate-body textarea{width:100%;margin:8px 0;padding:8px;border-radius:6px;border:1px solid var(--border-subtle);background:var(--bg-elevated);color:var(--text-primary)}.summary-comparison-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:10px}.map-builder-forms{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:12px}.map-form-inline{display:flex;gap:6px;flex-wrap:wrap}.map-form-inline input,.map-form-inline select{padding:5px 8px;border-radius:6px;border:1px solid var(--border-subtle);background:var(--bg-surface);color:var(--text-primary);font-size:12px}.map-canvas-container{background:var(--bg-surface);border:1px solid var(--border-subtle);border-radius:8px;padding:10px}.retrieval-map-svg{width:100%;height:auto;max-height:360px}.map-diff-overlay{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:16px;padding-top:14px;border-top:1px solid var(--border-subtle);font-size:12.5px}.map-diff-col ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:8px}.diff-item-matched,.diff-item-missing{display:flex;justify-content:space-between;align-items:center;background:var(--bg-surface);padding:7px 10px;border-radius:6px}.data-to-chart-card{background:var(--bg-surface);border:1px solid var(--border-subtle);border-radius:8px;padding:12px 14px;margin:8px 0}.data-chart-header{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:8px;font-size:12.5px;margin-bottom:10px}.data-chart-controls{display:flex;gap:6px;align-items:center}.book-table-scroll{overflow-x:auto}.book-table{width:100%;border-collapse:collapse;font-size:12px}.book-table th,.book-table td{padding:6px 8px;border-bottom:1px solid var(--border-subtle);text-align:left}.table-bar-row{display:flex;align-items:center;gap:10px;margin-bottom:6px;font-size:12px}.table-bar-label{width:170px}.table-bar-track{flex:1;height:12px;background:var(--border-subtle);border-radius:999px;overflow:hidden}.table-bar-fill{height:100%;background:var(--accent-primary)}.stubs-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}.stub-panel{background:var(--bg-surface);border:1px solid var(--border-subtle);border-radius:8px;padding:14px 16px;font-size:12.5px}.stub-panel-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:6px}.stub-desc{color:var(--text-secondary);margin:0 0 10px}.book-map-mini-nodes{display:grid;grid-template-columns:1fr 1fr;gap:8px}.book-map-node{display:flex;flex-direction:column;text-align:left;padding:7px 9px;border-radius:6px;border:1px solid var(--border-subtle);background:var(--bg-elevated);color:var(--text-primary);font-size:11.5px;cursor:pointer}.book-map-node.node-active{border-color:var(--accent-primary);background:var(--accent-soft)}.teachback-log{max-height:130px;overflow-y:auto;display:flex;flex-direction:column;gap:6px;margin-bottom:8px}.tb-bubble{padding:6px 9px;border-radius:6px;background:var(--bg-elevated);font-size:12px}.teachback-form{display:flex;gap:6px}.teachback-form input,.transfer-pin-row input,.stub-panel textarea{width:100%;padding:6px 8px;border-radius:6px;border:1px solid var(--border-subtle);background:var(--bg-elevated);color:var(--text-primary);font-size:12px}.transfer-pin-row{display:flex;align-items:center;gap:8px;margin-bottom:8px}.revisit-queue-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:8px}.revisit-queue-item{display:flex;justify-content:space-between;align-items:center;background:var(--bg-elevated);padding:8px 10px;border-radius:6px}.revisit-meta{display:block;color:var(--text-secondary)}.pdf-viewer-container{background:var(--bg-page);border:1px solid var(--border-subtle);border-radius:10px;padding:16px;margin-bottom:24px}.pdf-toolbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}.pdf-toolbar-group{display:flex;align-items:center;gap:8px}.pdf-canvas-stage{display:flex;justify-content:center;overflow-x:auto;background:var(--bg-surface);padding:12px;border-radius:8px}.pdf-page-canvas{max-width:100%;height:auto;box-shadow:0 4px 16px #0000001f}.prompt-log-drawer{background:var(--bg-elevated);border-bottom:2px solid var(--border-strong);padding:16px 24px}.drawer-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:12px}.prompt-log-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(340px,1fr));gap:12px}.prompt-log-card{background:var(--bg-surface);border:1px solid var(--border-subtle);border-radius:8px;padding:10px 12px;font-size:12px}.prompt-log-meta{display:flex;gap:8px;flex-wrap:wrap;font-size:11px;color:var(--text-secondary);margin-bottom:6px}.prompt-log-code{font-family:var(--font-mono);font-size:11px;background:var(--bg-page);padding:6px 8px;border-radius:5px}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#00000080;z-index:60;display:flex;align-items:center;justify-content:center;padding:24px}.modal-card{background:var(--bg-page);border:1px solid var(--border-strong);border-radius:10px;padding:20px 24px;width:100%;max-width:920px}.export-columns{display:grid;grid-template-columns:1fr 1fr;gap:16px}.export-columns textarea{width:100%;font-family:var(--font-mono);font-size:11.5px;padding:10px;border-radius:6px;border:1px solid var(--border-subtle);background:var(--bg-surface);color:var(--text-primary)}.reader-mode-bar{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-bottom:14px;padding:8px 14px;background:var(--bg-page);border:1px solid var(--border-subtle);border-radius:8px}.reader-scope-group,.reader-nav-group{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.scope-label{font-family:var(--font-mono);font-size:11.5px;color:var(--text-secondary);font-weight:600}.book-section-block+.book-section-block{margin-top:42px;padding-top:32px;border-top:2px solid var(--border-subtle)}.section-bottom-nav{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-top:28px;padding-top:18px;border-top:1px solid var(--border-subtle)}.book-inline-highlight{background-color:var(--warn-soft);color:inherit;border-bottom:2px solid var(--warn-color);padding:1px 2px;border-radius:3px}.highlight-tool-cursor .book-prose-col{cursor:text}.selection-toast-pill{position:fixed;bottom:22px;right:24px;z-index:55;display:flex;align-items:center;gap:10px;background:var(--bg-elevated);color:var(--text-primary);border:1px solid var(--border-strong);box-shadow:0 6px 20px #00000024;padding:8px 14px;border-radius:999px;font-size:12.5px;font-weight:500}.btn-toast-highlight{background:var(--warn-soft);color:var(--warn-color);border:1px solid var(--warn-color);border-radius:999px;padding:3px 10px;font-size:11.5px;font-weight:600;cursor:pointer}@media (max-width: 1024px){.paragraph-with-margin{grid-template-columns:1fr;gap:10px}.book-margin-col{padding-left:38px}.lab-main-grid,.recall-side-by-side,.map-diff-overlay,.stubs-grid,.export-columns{grid-template-columns:1fr}}.jump-to-top-fab{position:fixed;bottom:26px;right:26px;z-index:50;display:flex;align-items:center;gap:5px;background:var(--text-primary);color:var(--bg-elevated);border:1px solid var(--border-strong);border-radius:999px;padding:8px 14px;font-family:var(--font-sans);font-size:13px;font-weight:600;box-shadow:0 4px 16px #00000038;cursor:pointer;transition:transform .15s ease,box-shadow .15s ease,background .15s ease}.jump-to-top-fab:hover{transform:translateY(-2px);box-shadow:0 6px 22px #0000004d;background:var(--accent-primary);color:#fff}.jump-to-top-arrow{font-size:15px;line-height:1}.jump-to-top-label{letter-spacing:.02em}.interactive-map-svg{-webkit-user-select:none;user-select:none;touch-action:none}.map-canvas-hints{display:flex;gap:12px;flex-wrap:wrap;align-items:center;font-size:11.5px;color:var(--text-secondary);padding:4px 6px 8px}.map-selected-bar{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;background:var(--accent-soft);border:1px solid var(--accent-primary);border-radius:8px;padding:8px 12px;margin-bottom:12px;font-size:12.5px}.map-selected-meta{display:flex;align-items:center;gap:8px}.map-selected-label{font-weight:600;color:var(--text-primary)}.map-selected-actions,.map-inline-edit-wrap{display:flex;align-items:center;gap:6px}.map-inline-edit-wrap input{padding:4px 8px;font-size:12px;border-radius:4px;border:1px solid var(--border-strong);background:var(--bg-elevated);color:var(--text-primary)}.map-connecting-banner{display:flex;justify-content:space-between;align-items:center;gap:12px;background:var(--warn-soft);border:1px solid var(--warn-color);color:var(--warn-color);border-radius:8px;padding:8px 14px;margin-bottom:12px;font-size:12.5px}.btn-danger-quiet{color:var(--danger-color)!important}.btn-danger-quiet:hover{background:var(--danger-soft)!important;border-color:var(--danger-color)!important}.map-node-group{transition:transform .05s linear}.map-node-group:hover rect{stroke-width:2.5px}.node-selected rect{stroke-width:3px}.node-connecting-source rect{stroke-dasharray:4 2;animation:pulse-border 1.5s infinite}.node-target-candidate rect{stroke-dasharray:4 2}.map-edge-group:hover line{stroke-width:3.5px}.ref-missing-node-group:hover rect{fill:#fde68a}@keyframes pulse-border{0%{stroke-opacity:1}50%{stroke-opacity:.4}to{stroke-opacity:1}}.settings-drawer-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#00000073;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);z-index:100;display:flex;justify-content:flex-end;animation:fadeIn .15s ease-out}.settings-drawer-panel{width:100%;max-width:460px;height:100%;background:var(--bg-page);border-left:1px solid var(--border-strong);box-shadow:-8px 0 32px #00000029;display:flex;flex-direction:column;animation:slideInRight .2s cubic-bezier(.16,1,.3,1);overflow:hidden}.settings-drawer-header{padding:18px 24px;border-bottom:1px solid var(--border-subtle);display:flex;justify-content:space-between;align-items:flex-start;background:var(--bg-surface)}.settings-drawer-header h2{font-family:var(--font-serif);font-size:20px;margin:0 0 4px;color:var(--text-primary)}.settings-drawer-header p{font-size:12.5px;color:var(--text-secondary);margin:0}.settings-drawer-content{flex:1;overflow-y:auto;padding:20px 24px 40px;display:flex;flex-direction:column;gap:20px}.settings-card{background:var(--bg-surface);border:1px solid var(--border-subtle);border-radius:10px;padding:16px;display:flex;flex-direction:column;gap:12px}.settings-card-header{display:flex;align-items:flex-start;gap:10px}.settings-card-icon{font-size:18px;line-height:1.2}.settings-card-header h3{font-size:14px;font-weight:600;margin:0 0 2px;color:var(--text-primary)}.settings-card-header p{font-size:12px;color:var(--text-secondary);margin:0}.settings-scope-grid{display:grid;grid-template-columns:1fr;gap:8px}.settings-scope-option{background:var(--bg-elevated);border:1px solid var(--border-subtle);border-radius:8px;padding:10px 14px;text-align:left;cursor:pointer;display:flex;flex-direction:column;gap:2px;transition:border-color .15s ease,background .15s ease}.settings-scope-option:hover{border-color:var(--border-strong)}.settings-scope-option.selected{border-color:var(--accent-primary);background:var(--accent-soft)}.settings-scope-option strong{font-size:13px;color:var(--text-primary)}.settings-scope-option span,.settings-scope-option small{font-size:11.5px;color:var(--text-secondary)}.settings-api-key-box{display:flex;flex-direction:column;gap:8px;padding-top:4px}.settings-key-label{display:flex;justify-content:space-between;align-items:center;font-size:12px;font-weight:500;color:var(--text-primary)}.settings-key-help-link{font-size:11px;color:var(--accent-primary);text-decoration:underline;text-underline-offset:2px}.settings-key-input-row{display:flex;align-items:center;gap:6px}.settings-key-input{flex:1;font-family:monospace;font-size:12px}.settings-key-save-btn{background:var(--accent-primary);color:#fff;border-radius:6px;padding:6px 12px;font-weight:500}.settings-key-status{font-size:11.5px;line-height:1.4}.status-badge-ok{color:#10b981;font-weight:500}.status-badge-info{color:var(--text-secondary)}.settings-book-select{width:100%;padding:8px 10px;font-size:13px}.settings-upload-btn{display:block;text-align:center;margin-top:6px;padding:8px;border-radius:6px;font-weight:500}.settings-hint{display:block;font-size:11px;color:var(--text-muted);margin-top:4px}.settings-search-row{display:flex;gap:8px}.settings-search-input{flex:1;width:100%;padding:8px 12px;font-size:13px}.settings-actions-grid{display:grid;grid-template-columns:1fr;gap:8px}.settings-action-tile{display:flex;align-items:center;gap:12px;padding:10px 14px;border-radius:8px;background:var(--bg-elevated);text-align:left;border:1px solid var(--border-subtle);cursor:pointer}.settings-action-tile:hover{border-color:var(--border-strong)}.action-tile-icon{font-size:18px}.settings-action-tile strong{display:block;font-size:13px;color:var(--text-primary)}.settings-action-tile small{display:block;font-size:11px;color:var(--text-secondary)}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideInRight{0%{transform:translate(100%)}to{transform:translate(0)}}.shortcuts-modal-card{max-width:820px}.shortcuts-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:22px;margin-top:16px}.shortcuts-group h4{font-family:var(--font-serif);font-size:15px;font-weight:600;margin:0 0 10px;padding-bottom:6px;border-bottom:1px solid var(--border-subtle);color:var(--text-primary)}.shortcut-row{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:5px 0;font-size:12.5px}.shortcut-keys{display:flex;align-items:center;gap:4px;font-family:var(--font-mono);font-size:11px}.shortcut-keys kbd{background:var(--bg-surface);color:var(--text-primary);border:1px solid var(--border-strong);box-shadow:0 1.5px #00000026;border-radius:4px;padding:2px 7px;font-family:var(--font-mono);font-size:11px;font-weight:600;min-width:20px;text-align:center;display:inline-block}.shortcut-desc{color:var(--text-secondary);font-size:12px;text-align:right}.showcase-modal-card{max-width:980px;width:95%;min-height:540px;display:flex;flex-direction:column;padding:24px 28px;border-radius:14px}.showcase-header{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--border-subtle);padding-bottom:14px;margin-bottom:18px}.showcase-header-left{display:flex;align-items:center;gap:12px}.showcase-step-indicator{font-family:var(--font-mono);font-size:11.5px;color:var(--text-secondary);background:var(--bg-surface);padding:3px 8px;border-radius:999px;border:1px solid var(--border-subtle)}.showcase-close-btn{font-size:12px}.showcase-body-grid{display:grid;grid-template-columns:1.1fr .95fr;gap:28px;align-items:center;flex:1;padding:6px 0 16px}.showcase-info-col{display:flex;flex-direction:column;gap:16px}.showcase-title-row{display:flex;align-items:flex-start;gap:14px}.showcase-step-icon{font-size:32px;line-height:1}.showcase-title-row h2{font-family:var(--font-serif);font-size:24px;margin:0 0 4px;line-height:1.25;color:var(--text-primary)}.showcase-subtitle{font-size:13.5px;color:var(--text-secondary);line-height:1.45;margin:0}.showcase-bullets-list{display:flex;flex-direction:column;gap:12px}.showcase-bullet-item{display:flex;gap:10px;align-items:flex-start;background:var(--bg-surface);border:1px solid var(--border-subtle);border-radius:8px;padding:10px 14px}.showcase-bullet-dot{width:7px;height:7px;border-radius:50%;background:var(--accent-primary);margin-top:5px;flex-shrink:0}.showcase-bullet-content{flex:1}.showcase-bullet-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:2px}.showcase-bullet-head strong{font-size:13px;color:var(--text-primary)}.showcase-bullet-head kbd{background:var(--bg-elevated);border:1px solid var(--border-strong);border-radius:4px;padding:1px 6px;font-family:var(--font-mono);font-size:10.5px;font-weight:600;box-shadow:0 1px #00000026}.showcase-bullet-content p{margin:0;font-size:12px;color:var(--text-secondary);line-height:1.45}.showcase-action-wrap{margin-top:4px}.showcase-interactive-btn{width:100%;padding:9px 16px;font-size:13px;font-weight:600;text-align:center}.showcase-preview-col{display:flex;justify-content:center}.showcase-mockup-frame{width:100%;background:var(--bg-surface);border:1px solid var(--border-strong);border-radius:10px;overflow:hidden;box-shadow:0 8px 24px #00000014}.showcase-mockup-topbar{display:flex;align-items:center;gap:6px;background:var(--bg-elevated);padding:8px 12px;border-bottom:1px solid var(--border-subtle)}.mockup-dot{width:9px;height:9px;border-radius:50%}.mockup-dot.red{background:#ef4444}.mockup-dot.yellow{background:#f59e0b}.mockup-dot.green{background:#10b981}.mockup-tag{font-family:var(--font-mono);font-size:10.5px;color:var(--text-secondary);margin-left:8px}.showcase-mockup-canvas{padding:16px;min-height:260px;display:flex;align-items:center;justify-content:center}.mockup-stage{width:100%}.mockup-philosophy{display:flex;flex-direction:column;gap:12px}.mockup-banner{background:var(--accent-soft);color:var(--accent-primary);border:1px solid var(--accent-primary);border-radius:6px;padding:6px 10px;font-family:var(--font-mono);font-size:11px;font-weight:600;text-align:center}.mockup-flow-row{display:flex;align-items:center;gap:8px}.mockup-flow-card{flex:1;background:var(--bg-elevated);border:1px solid var(--border-subtle);border-radius:8px;padding:10px 8px;text-align:center}.flow-step-num{display:inline-block;width:18px;height:18px;line-height:18px;border-radius:50%;background:var(--accent-primary);color:#fff;font-size:10px;font-weight:700;margin-bottom:4px}.mockup-flow-card h4{margin:2px 0 3px;font-size:11.5px;color:var(--text-primary)}.mockup-flow-card p{margin:0;font-size:10px;color:var(--text-secondary);line-height:1.3}.flow-arrow{color:var(--text-muted);font-weight:700;font-size:14px}.mockup-reading{display:grid;grid-template-columns:1.4fr 1fr;gap:10px}.mockup-prose-block{background:var(--bg-elevated);border:1px solid var(--border-subtle);border-radius:6px;padding:10px;font-family:var(--font-serif);font-size:11.5px;line-height:1.4}.mockup-label-p{font-family:var(--font-mono);font-size:9.5px;color:var(--accent-primary);display:block;margin-bottom:3px}.mockup-inline-crop{margin-top:8px;background:var(--bg-surface);border:1px dashed var(--border-strong);border-radius:4px;padding:6px;font-family:var(--font-sans);font-size:10px;text-align:center}.mockup-crop-box{margin-top:4px;padding:12px;background:#fff;border:1px solid var(--border-subtle);color:var(--text-secondary);font-family:var(--font-mono);font-size:9px}.mockup-margin-block{display:flex;flex-direction:column;gap:8px}.mockup-margin-card{background:var(--bg-elevated);border:1px solid var(--border-subtle);border-radius:6px;padding:6px 8px;font-size:10.5px}.mockup-margin-card.highlight{border-left:3px solid var(--warn-color)}.mockup-margin-card.note{border-left:3px solid var(--accent-primary)}.m-card-badge{font-family:var(--font-mono);font-size:9px;font-weight:600;display:block;margin-bottom:2px;color:var(--text-muted)}.mockup-margin-card p{margin:0;font-size:10px;color:var(--text-primary)}.mockup-prequestions{display:flex;flex-direction:column;gap:10px}.mockup-pq-box{background:var(--bg-elevated);border:1px solid var(--accent-primary);border-left:3px solid var(--accent-primary);border-radius:6px;padding:10px}.pq-badge{font-family:var(--font-mono);font-size:9.5px;font-weight:600;color:var(--accent-primary)}.pq-q{font-size:11px;font-weight:600;margin:4px 0 6px}.pq-input-mock{background:var(--bg-surface);border:1px solid var(--border-subtle);border-radius:4px;padding:5px 8px;font-size:10.5px;font-style:italic;color:var(--text-secondary)}.mockup-pq-resurface{background:var(--bg-elevated);border:1px solid var(--success-color);border-radius:6px;padding:8px 10px}.resurface-tag{font-family:var(--font-mono);font-size:9px;font-weight:600;color:var(--success-color);display:block;margin-bottom:3px}.resurface-bubble strong{font-size:10.5px}.resurface-match{margin:2px 0 0;font-size:10px;color:var(--success-color);font-weight:500}.mockup-recall-map{display:flex;flex-direction:column;gap:12px}.mockup-map-nodes{display:flex;align-items:center;justify-content:space-between;gap:6px}.m-node{background:var(--bg-elevated);border:1.5px solid var(--accent-primary);border-radius:6px;padding:8px 10px;font-size:10.5px;font-weight:600;text-align:center}.m-arrow{font-family:var(--font-mono);font-size:9px;color:var(--accent-primary)}.mockup-diff-pill{display:flex;gap:8px;justify-content:center}.diff-check{background:var(--success-soft);color:var(--success-color);font-family:var(--font-mono);font-size:10px;font-weight:600;padding:3px 8px;border-radius:999px}.diff-gap{background:var(--warn-soft);color:var(--warn-color);font-family:var(--font-mono);font-size:10px;font-weight:600;padding:3px 8px;border-radius:999px}.mockup-lab{background:var(--bg-elevated);border:1px solid var(--border-subtle);border-radius:6px;padding:12px;display:flex;flex-direction:column;gap:10px}.mockup-lab-header{display:flex;justify-content:space-between;align-items:center;font-family:var(--font-mono);font-size:10.5px}.mockup-cert-pass{background:var(--success-soft);color:var(--success-color);padding:2px 6px;border-radius:4px;font-weight:600;font-size:9.5px}.mockup-slider-row label{display:flex;justify-content:space-between;font-size:10.5px;margin-bottom:4px}.mockup-slider-bar{height:6px;background:var(--border-subtle);border-radius:999px;overflow:hidden}.mockup-slider-fill{height:100%;background:var(--accent-primary)}.mockup-gate-row{display:flex;align-items:center;gap:8px;font-size:10.5px}.m-btn-pred{background:var(--warn-soft);border:1px solid var(--warn-color);color:var(--warn-color);border-radius:4px;padding:2px 7px;font-weight:600;font-size:10px}.mockup-shortcuts{display:flex;flex-direction:column;gap:8px}.shortcuts-showcase-row{display:flex;align-items:center;gap:10px;background:var(--bg-elevated);border:1px solid var(--border-subtle);border-radius:6px;padding:6px 10px;font-size:11px}.shortcuts-showcase-row kbd{background:var(--bg-surface);border:1px solid var(--border-strong);border-radius:4px;padding:1px 6px;font-family:var(--font-mono);font-size:10px;font-weight:600}.showcase-footer{display:flex;justify-content:space-between;align-items:center;border-top:1px solid var(--border-subtle);padding-top:16px;margin-top:8px}.showcase-step-dots{display:flex;gap:8px;align-items:center}.showcase-dot{width:10px;height:10px;border-radius:50%;border:none;background:var(--border-strong);cursor:pointer;transition:transform .15s ease,background .15s ease;padding:0}.showcase-dot.completed{background:var(--accent-soft);border:1.5px solid var(--accent-primary)}.showcase-dot.active{width:22px;border-radius:999px;background:var(--accent-primary)}.showcase-nav-btns{display:flex;gap:10px}@media (max-width: 820px){.showcase-body-grid{grid-template-columns:1fr}.showcase-preview-col{display:none}}
