@import"https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap";:root{--primary: #1A365D;--primary-light: #2C5282;--primary-dark: #102a4e;--accent: #dc2626;--accent-hover: #b91c1c;--bg-body: #f8fafc;--bg-white: #ffffff;--bg-section: #eff6ff;--text-main: #0f172a;--text-light: #475569;--text-white: #ffffff;--shadow-sm: 0 1px 2px 0 rgb(0 0 0 / .05);--shadow-md: 0 4px 6px -1px rgb(0 0 0 / .1), 0 2px 4px -2px rgb(0 0 0 / .1);--shadow-lg: 0 10px 15px -3px rgb(0 0 0 / .1), 0 4px 6px -4px rgb(0 0 0 / .1);--radius: 6px;--container-width: 1200px}*{box-sizing:border-box;margin:0;padding:0}body{font-family:Inter,sans-serif;background-color:var(--bg-body);color:var(--text-main);line-height:1.6;-webkit-font-smoothing:antialiased}button{cursor:pointer;font-family:inherit}.container{max-width:var(--container-width);margin:0 auto;padding:0 1.5rem}h1,h2,h3,h4,h5,h6{color:var(--primary);line-height:1.2;font-weight:700;letter-spacing:-.01em}a{text-decoration:none;color:inherit;transition:color .2s}.btn{display:inline-flex;align-items:center;justify-content:center;padding:.75rem 1.5rem;border-radius:var(--radius);font-weight:600;transition:all .2s ease;border:none;font-size:1rem}.btn-primary{background-color:var(--accent);color:var(--text-white)}.btn-primary:hover{background-color:var(--accent-hover);transform:translateY(-1px)}.btn-secondary{background-color:var(--primary);color:var(--text-white)}.btn-secondary:hover{background-color:var(--primary-light)}.btn-outline{background-color:transparent;border:2px solid #cbd5e1;color:var(--text-main)}.btn-outline:hover{border-color:var(--primary);color:var(--primary);background-color:#fff}input,select,textarea{width:100%;padding:.75rem;border:1px solid #cbd5e1;border-radius:var(--radius);font-family:inherit;font-size:1rem;margin-bottom:1rem}input:focus,select:focus,textarea:focus{outline:2px solid var(--primary-light);border-color:transparent}label{display:block;font-weight:500;margin-bottom:.5rem;color:var(--text-main)}*{box-sizing:border-box}.demo-page{background-color:#fff;min-height:100vh;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Inter,sans-serif;color:#1a1a1a;line-height:1.6}.hero-section{padding:100px 24px 80px;background:linear-gradient(180deg,#f9fafb,#fff);border-bottom:1px solid #e5e7eb}.hero-content{max-width:1000px;margin:0 auto;text-align:center}.hero-badge{display:inline-block;padding:6px 16px;background:#f3f4f6;color:#4b5563;font-size:13px;font-weight:600;letter-spacing:.5px;text-transform:uppercase;border-radius:4px;margin-bottom:24px}.hero-title{font-size:56px;font-weight:700;line-height:1.1;color:#111827;margin:0 0 24px;letter-spacing:-.02em}.hero-subtitle{font-size:20px;color:#6b7280;max-width:700px;margin:0 auto 48px;line-height:1.6}.hero-stats{display:flex;justify-content:center;align-items:center;gap:32px;padding:32px;background:#fff;border:1px solid #e5e7eb;border-radius:8px;max-width:600px;margin:0 auto;box-shadow:0 1px 3px #0000000a}.stat-item{text-align:center}.stat-value{font-size:36px;font-weight:700;color:#06c;margin-bottom:4px}.stat-label{font-size:13px;color:#6b7280;font-weight:500}.stat-divider{font-size:28px;color:#d1d5db}.content-section{padding:80px 24px;max-width:1200px;margin:0 auto}.section-header{text-align:center;margin-bottom:56px}.section-title{font-size:40px;font-weight:700;color:#111827;margin:0 0 16px;letter-spacing:-.01em}.section-description{font-size:18px;color:#6b7280;margin:0}.problem-section{background:#fafafa;border-top:1px solid #e5e7eb;border-bottom:1px solid #e5e7eb}.problem-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:32px}.problem-card{background:#fff;padding:32px;border:1px solid #e5e7eb;border-radius:8px;box-shadow:0 1px 2px #0000000a}.problem-icon{font-size:32px;margin-bottom:16px}.problem-title{font-size:20px;font-weight:600;color:#111827;margin:0 0 12px}.problem-text{font-size:15px;color:#6b7280;line-height:1.6;margin:0}.communication-diagram{max-width:700px;margin:0 auto 64px;text-align:center}.diagram-image{width:100%;height:auto;border-radius:8px;background:#fafafa;padding:32px;border:1px solid #e5e7eb;box-shadow:0 1px 3px #0000000a}.diagram-caption{margin-top:16px;font-size:15px;color:#6b7280;font-style:italic}.solution-steps{display:flex;flex-direction:column;gap:40px;max-width:800px;margin:0 auto}.solution-step{display:flex;gap:24px;align-items:flex-start}.step-number{flex-shrink:0;width:48px;height:48px;background:#06c;color:#fff;border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:20px;font-weight:700}.step-content{flex:1}.step-title{font-size:20px;font-weight:600;color:#111827;margin:0 0 8px}.step-text{font-size:15px;color:#6b7280;line-height:1.6;margin:0}.demo-section{background:#f9fafb;border-top:1px solid #e5e7eb;padding-bottom:100px}.highlight-indicator{padding:2px 6px;border-radius:3px;font-weight:600}.highlight-indicator.red{color:#dc2626;background:#fee2e2}.highlight-indicator.blue{color:#2563eb;background:#dbeafe}.demo-container{width:100%;max-width:1400px;display:flex;flex-direction:column;gap:1rem;margin:0 auto}.demo-container.admin-mode{flex-direction:row;gap:20px;align-items:flex-start}.admin-dock{width:300px;background:#1e293b;border:1px solid #334155;border-radius:8px;color:#fff;padding:15px;box-shadow:0 4px 12px #0000004d;flex-shrink:0}.dock-header h3{margin:0 0 10px;font-size:1.1rem;color:#60a5fa}.tabs{display:flex;gap:5px;margin-bottom:15px}.tabs button{flex:1;background:#334155;border:none;color:#cbd5e1;padding:8px;font-size:.8rem;cursor:pointer;border-radius:4px;transition:all .2s}.tabs button.active{background:#06c;color:#fff}.tool-group{display:flex;flex-direction:column;gap:12px}.form-row{display:flex;flex-direction:column;gap:4px}.form-row label{font-size:.8rem;color:#94a3b8}.form-row input,.form-row select{background:#0f172a;border:1px solid #334155;color:#fff;padding:8px;border-radius:4px}.selection-status{background:#000;padding:8px;font-size:.85rem;color:#fff;border-radius:4px;margin-bottom:5px}.action-btn{background:#22c55e;color:#fff;border:none;padding:10px;border-radius:4px;cursor:pointer;font-weight:700;margin-top:10px;transition:background .2s}.action-btn:hover{background:#16a34a}.action-btn:disabled{background:#475569;cursor:not-allowed}.export-btn{background:#06c;color:#fff;border:none;padding:12px;border-radius:4px;cursor:pointer;font-weight:700;width:100%;transition:background .2s}.export-btn:hover{background:#0052a3}.help-text{font-size:.8rem;color:#94a3b8;line-height:1.4;text-align:center}.file-tag{font-size:.75rem;color:#64748b;margin-top:2px;overflow:hidden;text-overflow:ellipsis}.app-window{background-color:#fff;border:1px solid #e5e7eb;border-radius:8px;min-height:700px;display:flex;flex-direction:column;box-shadow:0 4px 6px -1px #0000001a,0 2px 4px -1px #0000000f;overflow:hidden}.app-header{height:64px;border-bottom:1px solid #e5e7eb;display:flex;align-items:center;padding:0 24px;background-color:#fafafa;justify-content:space-between;gap:24px}.app-brand{display:flex;align-items:center;gap:12px;font-size:18px;font-weight:600;color:#111827;flex-shrink:0}.brand-text{white-space:nowrap}.logo-circle{width:36px;height:36px;background:#06c;color:#fff;border-radius:6px;display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;flex-shrink:0}.logo-circle.small{width:28px;height:28px;font-size:12px}.playback-controls{flex:1;max-width:600px;display:flex;align-items:center;gap:12px}.save-btn{height:36px;padding:0 16px;border-radius:6px;border:1px solid #d1d5db;background:#fff;color:#374151;font-size:13px;font-weight:600;cursor:pointer;transition:all .2s;white-space:nowrap;display:flex;align-items:center;gap:6px}.save-btn:hover{background:#f3f4f6;border-color:#9ca3af}.save-btn.saved{background:#ecfdf5;border-color:#34d399;color:#059669}.demo-toast{position:absolute;top:80px;left:50%;transform:translate(-50%);background:#111827;color:#fff;padding:10px 20px;border-radius:20px;font-size:14px;font-weight:500;box-shadow:0 4px 12px #00000026;z-index:1000;animation:slideDownFade .3s ease-out}@keyframes slideDownFade{0%{opacity:0;transform:translate(-50%,-10px)}to{opacity:1;transform:translate(-50%)}}.main-play{width:36px;height:36px;border-radius:6px;border:none;background:#06c;color:#fff;display:flex;align-items:center;justify-content:center;font-size:14px;cursor:pointer;flex-shrink:0;transition:background .2s}.main-play:hover{background:#0052a3}.scrubber-container{flex:1;display:flex;align-items:center;gap:10px}.time-val{font-family:SF 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#0003}.legend{display:flex;gap:16px;align-items:center;font-size:13px;color:#6b7280;flex-shrink:0}.legend-item{display:flex;align-items:center;gap:6px}.dot{width:8px;height:8px;border-radius:50%;display:inline-block}.dot.red{background-color:#dc2626}.dot.blue{background-color:#2563eb}.app-body{display:flex;flex:1;overflow:hidden;background:#fafafa}.panel{padding:24px;overflow-y:auto}.panel-label{font-size:12px;font-weight:600;text-transform:uppercase;letter-spacing:.05em;color:#6b7280;margin-bottom:16px}.narrative-panel{flex:2;border-right:1px solid #e5e7eb;background:#fff}.narrative-text{white-space:pre-wrap;font-size:15px;line-height:1.7;color:#374151;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}.highlight{cursor:pointer;border-radius:2px;transition:all .15s;position:relative;padding:1px 2px;font-weight:500}.highlight.red{color:#dc2626;background:#dc262614}.highlight.red:hover,.highlight.red.playing{background:#dc262626}.highlight.blue{color:#2563eb;background:#2563eb14}.highlight.blue:hover{background:#2563eb26}.speech-bubble{position:absolute;bottom:115%;left:50%;transform:translate(-50%);background:#1f2937;border:1px solid #374151;border-radius:6px;padding:12px 16px;width:280px;z-index:100;box-shadow:0 10px 25px #0003;cursor:default;animation:fadeIn .2s ease-out}.bubble-content{color:#f3f4f6;font-size:13px;line-height:1.5}.bubble-arrow{position:absolute;bottom:-5px;left:50%;transform:translate(-50%) rotate(45deg);width:10px;height:10px;background:#1f2937;border-bottom:1px solid #374151;border-right:1px solid #374151}@keyframes fadeIn{0%{opacity:0;transform:translate(-50%) translateY(8px)}to{opacity:1;transform:translate(-50%) translateY(0)}}.del-btn{margin-left:4px;background:#ef4444;color:#fff;border:none;border-radius:50%;width:18px;height:18px;font-size:12px;cursor:pointer;display:inline-flex;align-items:center;justify-content:center}.editor-overlay{height:100%;display:flex;flex-direction:column}.editor-hint{background:#06c;color:#fff;padding:8px;font-size:13px;text-align:center;margin-bottom:12px;border-radius:4px}.raw-text-editor{width:100%;height:100%;background:#fafafa;color:#374151;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;font-size:15px;line-height:1.7;border:1px solid #e5e7eb;padding:16px;resize:none;border-radius:4px}.notes-panel{flex:1;max-width:350px;background-color:#fff}.notes-list{display:flex;flex-direction:column;gap:0}.note-item{display:flex;justify-content:space-between;align-items:center;padding:12px 0;border-bottom:1px solid #e5e7eb}.note-item:last-child{border-bottom:none}.note-time{color:#6b7280;font-family:SF Mono,Monaco,Consolas,monospace;font-size:13px;font-weight:500;min-width:45px}.note-label{color:#374151;flex:1;margin:0 12px;font-size:14px}.note-actions{display:flex;gap:6px;align-items:center}.play-mini{width:28px;height:28px;border-radius:4px;border:1px solid #d1d5db;background:transparent;color:#6b7280;display:flex;align-items:center;justify-content:center;font-size:10px;cursor:pointer;transition:all .2s}.play-mini:hover{background:#f3f4f6;border-color:#9ca3af}.play-mini.active{background:#dc2626;border-color:#dc2626;color:#fff}.edit-mini,.del-mini{background:none;border:none;cursor:pointer;font-size:14px;color:#9ca3af;padding:4px;transition:color .2s}.edit-mini:hover{color:#06c}.del-mini:hover{color:#dc2626}.btn-row{display:flex;gap:8px}.cancel-btn{background:#6b7280;color:#fff;border:none;padding:10px;border-radius:4px;cursor:pointer;font-weight:700;transition:background .2s}.cancel-btn:hover{background:#4b5563}.cta-section{background:#fff;border-top:1px solid #e5e7eb}.cta-card{max-width:600px;margin:0 auto;text-align:center;padding:48px 32px;background:#fafafa;border:1px solid #e5e7eb;border-radius:8px}.cta-title{font-size:32px;font-weight:700;color:#111827;margin:0 0 16px}.cta-text{font-size:16px;color:#6b7280;margin:0 0 32px;line-height:1.6}.cta-button{display:inline-block;padding:14px 32px;background:#06c;color:#fff;text-decoration:none;border-radius:6px;font-weight:600;font-size:16px;transition:all .2s;border:none;cursor:pointer}.cta-button:hover{background:#0052a3;transform:translateY(-1px);box-shadow:0 4px 12px #0066cc4d}.cta-note{margin:16px 0 0;font-size:14px;color:#9ca3af}.demo-footer{background:#fafafa;border-top:1px solid #e5e7eb;padding:40px 24px}.footer-content{max-width:1200px;margin:0 auto;display:flex;justify-content:space-between;align-items:center}.footer-brand{display:flex;align-items:center;gap:10px;font-size:16px;font-weight:600;color:#374151}.footer-links{display:flex;align-items:center;gap:16px;font-size:14px}.footer-links a{color:#6b7280;text-decoration:none;transition:color .2s}.footer-links a:hover{color:#06c}.footer-divider{color:#d1d5db}@media(max-width:1024px){.hero-title{font-size:42px}.hero-subtitle{font-size:18px}.section-title{font-size:32px}.app-window{min-height:600px}}@media(max-width:768px){.hero-section{padding:60px 20px 50px}.hero-title{font-size:32px}.hero-subtitle{font-size:16px}.hero-stats{flex-direction:column;gap:20px}.stat-divider{transform:rotate(90deg)}.content-section{padding:50px 20px}.section-title{font-size:28px}.problem-grid{grid-template-columns:1fr}.communication-diagram{margin-bottom:48px}.diagram-image{padding:20px}.solution-step{flex-direction:column;gap:16px}.app-header{flex-wrap:wrap;height:auto;padding:16px;gap:12px}.legend{width:100%;justify-content:center}.playback-controls{width:100%;max-width:none}.app-body{flex-direction:column}.narrative-panel{border-right:none;border-bottom:1px solid #e5e7eb}.notes-panel{max-width:none}.footer-content{flex-direction:column;gap:16px;text-align:center}.demo-container.admin-mode{flex-direction:column}.admin-dock{width:100%}}@media(max-width:480px){.hero-title{font-size:28px}.section-title{font-size:24px}.app-window{min-height:500px}.panel{padding:16px}}#root{width:100%;margin:0;padding:0}*{margin:0;padding:0;box-sizing:border-box}body{margin:0;padding:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Inter,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}