@font-face{font-family:Material Symbols Outlined;font-style:normal;font-weight:100 700;src:url(/fonts/MaterialSymbolsOutlined.woff2) format("woff2");font-display:swap}.material-symbols-outlined{font-family:Material Symbols Outlined;font-weight:400;font-style:normal;font-size:24px;line-height:1;letter-spacing:normal;text-transform:none;display:inline-block;white-space:nowrap;word-wrap:normal;direction:ltr;font-feature-settings:"liga";-webkit-font-feature-settings:"liga";-webkit-font-smoothing:antialiased}:root{--primary-50: #e3f2fd;--primary-100: #bbdefb;--primary-200: #90caf9;--primary-300: #64b5f6;--primary-400: #42a5f5;--primary-500: #0047AB;--primary-600: #003d99;--primary-700: #003380;--primary-800: #002966;--primary-900: #001f4d;--accent-purple: #7c4dff;--accent-pink: #ff4081;--accent-orange: #ff9100;--accent-green: #00e676;--neutral-50: #fafafa;--neutral-100: #f5f5f5;--neutral-200: #eeeeee;--neutral-300: #e0e0e0;--neutral-400: #bdbdbd;--neutral-500: #9e9e9e;--neutral-600: #757575;--neutral-700: #616161;--neutral-800: #424242;--neutral-900: #212121;--dark-bg-primary: #0a0e27;--dark-bg-secondary: #151b3d;--dark-bg-tertiary: #1e2749;--dark-surface: #252d52;--dark-surface-elevated: #2d3659;--success: #00e676;--warning: #ffc107;--error: #ff5252;--info: #2196f3;--spacing-xs: 4px;--spacing-sm: 8px;--spacing-md: 16px;--spacing-lg: 24px;--spacing-xl: 32px;--spacing-2xl: 48px;--radius-sm: 4px;--radius-md: 8px;--radius-lg: 12px;--radius-xl: 16px;--radius-full: 9999px;--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .1), 0 2px 4px -1px rgba(0, 0, 0, .06);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .1), 0 4px 6px -2px rgba(0, 0, 0, .05);--shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, .1), 0 10px 10px -5px rgba(0, 0, 0, .04);--glass-bg: rgba(255, 255, 255, .1);--glass-border: rgba(255, 255, 255, .2);--glass-blur: blur(10px);--font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto", "Oxygen", "Ubuntu", sans-serif;--font-mono: "SF Mono", "Monaco", "Inconsolata", "Fira Code", monospace;--transition-fast: .15s cubic-bezier(.4, 0, .2, 1);--transition-base: .25s cubic-bezier(.4, 0, .2, 1);--transition-slow: .35s cubic-bezier(.4, 0, .2, 1);--bg-primary: var(--dark-bg-primary);--bg-secondary: var(--dark-bg-secondary);--bg-tertiary: var(--dark-bg-tertiary);--surface: var(--dark-surface);--surface-elevated: var(--dark-surface-elevated);--text-primary: #ffffff;--text-secondary: rgba(255, 255, 255, .7);--text-tertiary: rgba(255, 255, 255, .5);--border-color: rgba(255, 255, 255, .1)}@media(prefers-color-scheme:dark){:root{--bg-primary: var(--dark-bg-primary);--bg-secondary: var(--dark-bg-secondary);--bg-tertiary: var(--dark-bg-tertiary);--surface: var(--dark-surface);--surface-elevated: var(--dark-surface-elevated);--text-primary: #ffffff;--text-secondary: rgba(255, 255, 255, .7);--text-tertiary: rgba(255, 255, 255, .5);--border-color: rgba(255, 255, 255, .1)}}@media(prefers-color-scheme:light){:root{--bg-primary: #ffffff;--bg-secondary: var(--neutral-50);--bg-tertiary: var(--neutral-100);--surface: #ffffff;--surface-elevated: #ffffff;--text-primary: var(--neutral-900);--text-secondary: var(--neutral-700);--text-tertiary: var(--neutral-500);--border-color: var(--neutral-200)}}*{margin:0;padding:0;box-sizing:border-box}html,body{width:100%;height:100%;overflow:hidden}body{font-family:var(--font-sans);background:var(--bg-primary);color:var(--text-primary);line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}#root{width:100%;height:100%}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:var(--bg-secondary);border-radius:var(--radius-full)}::-webkit-scrollbar-thumb{background:var(--primary-500);border-radius:var(--radius-full);transition:background var(--transition-base)}::-webkit-scrollbar-thumb:hover{background:var(--primary-600)}::selection{background:var(--primary-500);color:#fff}:focus-visible{outline:2px solid var(--primary-500);outline-offset:2px}.glass{background:var(--glass-bg);-webkit-backdrop-filter:var(--glass-blur);backdrop-filter:var(--glass-blur);border:1px solid var(--glass-border)}.gradient-primary{background:linear-gradient(135deg,var(--primary-500) 0%,var(--primary-700) 100%)}.gradient-accent{background:linear-gradient(135deg,var(--accent-purple) 0%,var(--accent-pink) 100%)}.text-gradient{background:linear-gradient(135deg,var(--primary-400) 0%,var(--accent-purple) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@keyframes slideIn{0%{transform:translate(-100%)}to{transform:translate(0)}}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}.animate-fade-in{animation:fadeIn var(--transition-base) ease-out}.animate-slide-in{animation:slideIn var(--transition-slow) ease-out}.animate-pulse{animation:pulse 2s cubic-bezier(.4,0,.6,1) infinite}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--spacing-sm);padding:var(--spacing-sm) var(--spacing-lg);border:none;border-radius:var(--radius-lg);font-family:var(--font-sans);font-size:14px;font-weight:500;cursor:pointer;transition:all var(--transition-base);-webkit-user-select:none;user-select:none;-webkit-tap-highlight-color:transparent}.btn:active{transform:scale(.98)}.btn-primary{background:var(--primary-500);color:#fff}.btn-primary:hover{background:var(--primary-600);box-shadow:var(--shadow-lg)}.btn-glass{background:var(--glass-bg);-webkit-backdrop-filter:var(--glass-blur);backdrop-filter:var(--glass-blur);border:1px solid var(--glass-border);color:var(--text-primary)}.btn-glass:hover{background:#ffffff26}.card{background:var(--surface);border-radius:var(--radius-xl);padding:var(--spacing-lg);box-shadow:var(--shadow-md);transition:all var(--transition-base)}.card:hover{box-shadow:var(--shadow-xl);transform:translateY(-2px)}.card-glass{background:var(--glass-bg);-webkit-backdrop-filter:var(--glass-blur);backdrop-filter:var(--glass-blur);border:1px solid var(--glass-border)}.input{width:100%;padding:var(--spacing-md);background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:var(--radius-md);color:var(--text-primary);font-family:var(--font-sans);font-size:14px;transition:all var(--transition-base)}.input:focus{outline:none;border-color:var(--primary-500);box-shadow:0 0 0 3px #0047ab1a}@media(max-width:768px){:root{--spacing-lg: 20px;--spacing-xl: 28px}body{font-size:14px}.btn{min-height:44px;padding:var(--spacing-md) var(--spacing-lg)}}@media(hover:none)and (pointer:coarse){.btn:hover,.card:hover{transform:none}}.phase-manager-v2{position:relative;width:100%;min-height:80px;background:var(--bg-secondary, #1a1a2e);border-radius:8px;padding:8px;display:flex;flex-direction:column;gap:4px;outline:none}.phase-row{position:relative;height:32px;background:#ffffff0d;border-radius:4px;display:flex;align-items:center}.phase-row[data-depth="0"]{height:36px}.phase-row[data-depth="1"]{height:28px;margin-left:12px}.phase-row[data-depth="2"]{height:24px;margin-left:24px}.phase-block{position:absolute;height:100%;border-radius:4px;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:box-shadow .2s,transform .1s;min-width:40px;overflow:hidden}.phase-block:hover{box-shadow:0 0 0 2px #ffffff4d;z-index:10}.phase-block.selected{box-shadow:0 0 0 2px #fff,0 4px 12px #0000004d;z-index:20}.phase-label{padding:0 8px;color:#fff;font-size:12px;font-weight:500;text-shadow:0 1px 2px rgba(0,0,0,.5);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.phase-label input{background:#00000080;border:1px solid rgba(255,255,255,.3);border-radius:4px;color:#fff;font-size:12px;padding:2px 6px;width:80px}.phase-label input:focus{outline:none;border-color:#3b82f6}.resize-handle{position:absolute;top:0;bottom:0;width:8px;cursor:ew-resize;background:transparent;z-index:5}.resize-handle.left{left:0}.resize-handle.right{right:0}.resize-handle:hover,.phase-block.selected .resize-handle{background:#ffffff4d}.phase-controls{position:absolute;top:-32px;left:50%;transform:translate(-50%);display:flex;gap:4px;background:#1e1e1e;padding:4px;border-radius:6px;box-shadow:0 4px 12px #00000080}.control-btn{width:24px;height:24px;border:none;border-radius:4px;background:transparent;color:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background .2s}.control-btn:hover{background:#fff3}.control-btn.delete:hover{background:#f44336}.control-btn .material-symbols-outlined{font-size:16px}.color-picker-popup{position:absolute;top:-70px;left:50%;transform:translate(-50%);background:#1e1e1e;padding:8px;border-radius:8px;box-shadow:0 4px 20px #00000080;display:grid;grid-template-columns:repeat(4,1fr);gap:4px;z-index:100}.color-option{width:24px;height:24px;border-radius:50%;border:2px solid transparent;cursor:pointer;transition:transform .2s,border-color .2s}.color-option:hover{transform:scale(1.2);border-color:#fff}.add-phase-btn{position:absolute;right:4px;top:50%;transform:translateY(-50%);width:24px;height:24px;border:none;border-radius:4px;background:#ffffff1a;color:#ffffff80;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .2s}.add-phase-btn:hover{background:#3b82f6;color:#fff}.add-phase-btn .material-symbols-outlined{font-size:18px}.add-between-btn{position:absolute;top:50%;transform:translateY(-50%);width:20px;height:20px;border:none;border-radius:50%;background:#3b82f6;color:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center;opacity:0;transition:opacity .2s;z-index:30}.phase-row:hover .add-between-btn{opacity:1}.empty-hint{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;padding:20px;color:#ffffff80}.empty-hint .material-symbols-outlined{font-size:32px}.empty-hint p{font-size:14px;margin:0}.magnet-indicator{position:absolute;top:0;bottom:0;width:3px;background:gold;pointer-events:none}.magnet-indicator.left{left:0}.magnet-indicator.right{right:0}.phase-block.dragging{opacity:.7;cursor:grabbing}@media(max-width:768px){.phase-row{height:28px}.phase-label{font-size:10px}.phase-controls{top:auto;bottom:-36px}}.comment-marker-list{position:absolute;inset:0;pointer-events:none;z-index:50}.comment-marker{position:absolute;bottom:0;transform:translate(-50%);cursor:pointer;pointer-events:auto;z-index:51}.comment-marker.active{z-index:52}.marker-pin{width:28px;height:28px;border-radius:50% 50% 50% 0;background:var(--marker-color);display:flex;align-items:center;justify-content:center;box-shadow:0 2px 8px #0003;transform:rotate(-45deg);transform-origin:center;border:2px solid white;transition:transform .15s ease}.comment-marker:hover .marker-pin,.comment-marker.active .marker-pin{transform:rotate(-45deg) scale(1.15)}.marker-avatar{width:18px;height:18px;border-radius:50%;transform:rotate(45deg);object-fit:cover}.marker-initial{font-size:12px;font-weight:700;color:#fff;transform:rotate(45deg)}.marker-line{position:absolute;left:50%;top:28px;width:2px;height:calc(100% - 28px);background:linear-gradient(to bottom,var(--marker-color) 0%,transparent 100%);transform:translate(-50%);opacity:.6}.comment-marker:hover .marker-line,.comment-marker.active .marker-line{opacity:1}.comment-preview{position:absolute;bottom:100%;left:50%;transform:translate(-50%);min-width:120px;max-width:200px;background:var(--surface);border-radius:var(--radius-md);box-shadow:var(--shadow-lg);padding:8px 12px;margin-bottom:8px;animation:fadeIn .15s ease}.comment-preview:after{content:"";position:absolute;top:100%;left:50%;transform:translate(-50%);border:6px solid transparent;border-top-color:var(--surface)}.preview-header{display:flex;align-items:center;gap:6px;margin-bottom:4px}.preview-username{font-size:11px;font-weight:600;color:var(--text-primary)}.preview-text{font-size:12px;color:var(--text-secondary);line-height:1.4;word-break:break-word}@keyframes fadeIn{0%{opacity:0;transform:translate(-50%) translateY(4px)}to{opacity:1;transform:translate(-50%) translateY(0)}}@media(max-width:768px){.marker-pin{width:24px;height:24px}.marker-avatar{width:14px;height:14px}.marker-initial{font-size:10px}.comment-preview{min-width:100px;max-width:150px;padding:6px 10px}}.comment-input-container{background:var(--surface);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);padding:12px 16px;animation:slideUp .2s ease}@keyframes slideUp{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.comment-input-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}.comment-user-info{display:flex;align-items:center;gap:8px}.comment-user-avatar{width:24px;height:24px;border-radius:50%;object-fit:cover}.comment-user-avatar.placeholder{background:var(--primary-500);color:#fff;display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700}.comment-username{font-size:13px;font-weight:600;color:var(--text-primary)}.comment-timestamp{display:flex;align-items:center;gap:4px;font-size:12px;color:var(--text-secondary);background:var(--bg-secondary);padding:4px 8px;border-radius:var(--radius-full)}.comment-timestamp .material-symbols-outlined{font-size:14px}.comment-form{display:flex;flex-direction:column;gap:10px}.comment-textarea{width:100%;padding:10px 12px;border:1px solid var(--border-color);border-radius:var(--radius-md);background:var(--bg-primary);color:var(--text-primary);font-size:13px;line-height:1.5;resize:none;transition:border-color .15s ease}.comment-textarea:focus{outline:none;border-color:var(--primary-500)}.comment-textarea::placeholder{color:var(--text-tertiary)}.comment-actions{display:flex;justify-content:flex-end;gap:8px}.comment-btn{display:flex;align-items:center;gap:4px;padding:8px 16px;border-radius:var(--radius-md);font-size:13px;font-weight:600;cursor:pointer;transition:all .15s ease;border:none}.comment-btn.cancel{background:var(--bg-secondary);color:var(--text-secondary)}.comment-btn.cancel:hover{background:var(--bg-tertiary)}.comment-btn.submit{background:var(--primary-500);color:#fff}.comment-btn.submit:hover:not(:disabled){background:var(--primary-600)}.comment-btn.submit:disabled{opacity:.5;cursor:not-allowed}.comment-btn .material-symbols-outlined{font-size:16px}@media(max-width:768px){.comment-input-container{padding:10px 12px}.comment-textarea{font-size:14px}.comment-btn{padding:8px 12px;font-size:12px}}.waveform-display{position:relative;width:100%;height:100%;background:linear-gradient(135deg,#6b7c3e,#8a9a5e);border-radius:var(--radius-lg);overflow:hidden}.waveform-container{width:100%;height:100%;cursor:pointer;transition:opacity var(--transition-base)}.waveform-empty,.waveform-error,.waveform-loading{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;padding:var(--spacing-lg);text-align:center;color:var(--text-secondary);background:var(--surface);border-radius:var(--radius-lg)}.waveform-empty .material-symbols-outlined,.waveform-error .material-symbols-outlined{font-size:48px;margin-bottom:var(--spacing-sm);opacity:.5;color:var(--text-tertiary)}.waveform-empty p,.waveform-error p{font-size:14px;margin:var(--spacing-sm) 0;color:var(--text-secondary)}.waveform-loading{position:absolute;inset:0;background:#6b7c3ee6;z-index:10}.loading-spinner{width:48px;height:48px;border:4px solid rgba(255,255,255,.2);border-top-color:#fff;border-radius:50%;animation:spin 1s linear infinite;margin-bottom:var(--spacing-md)}.waveform-loading p{font-size:14px;color:#ffffffe6}.phase-labels{position:absolute;top:0;left:0;right:0;height:32px;display:flex;pointer-events:none}.phase-label{position:absolute;top:0;height:100%;border-left:2px solid;padding-left:8px;pointer-events:none;display:flex;align-items:center}.phase-label-text{font-size:12px;font-weight:600;color:#fff;background:#0009;padding:2px 6px;border-radius:4px;white-space:nowrap;text-shadow:0 1px 2px rgba(0,0,0,.8)}.waveform-controls{position:absolute;top:15px;right:15px;display:flex;gap:8px;z-index:20}.control-btn{width:40px;height:40px;border-radius:50%;background:#ffffff1a;border:1px solid rgba(255,255,255,.2);color:#fff;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .2s;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.control-btn:hover{background:#fff3;transform:scale(1.05)}.control-btn.active{background:var(--primary);border-color:var(--primary);box-shadow:0 0 10px #0047ab80}.comment-input-overlay{position:absolute;top:50%;transform:translate(-50%,-120%);z-index:100;min-width:300px}.phase-manager-overlay{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:90%;max-width:600px;max-height:85vh;overflow-y:auto;background:#141423f2;border:1px solid rgba(255,255,255,.1);border-radius:12px;padding:24px;z-index:9999;box-shadow:0 20px 50px #00000080;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);scrollbar-width:thin;scrollbar-color:rgba(255,255,255,.3) transparent}.waveform-empty .btn,.waveform-error .btn{margin-top:var(--spacing-md)}@media(max-width:768px){.waveform-empty .material-symbols-outlined,.waveform-error .material-symbols-outlined{font-size:48px}.waveform-empty p,.waveform-error p{font-size:14px}.phase-label-text{font-size:10px}.waveform-controls{top:10px;right:10px}.control-btn{width:32px;height:32px}.control-btn .material-symbols-outlined{font-size:18px}.phase-manager-overlay{top:40px;left:50%;transform:translate(-50%);width:95%;max-height:calc(100% - 50px)}}@keyframes slideDown{0%{opacity:0;transform:translate(-50%,-10px)}to{opacity:1;transform:translate(-50%)}}.cursor-overlay{position:absolute;top:0;left:0;width:100%;height:100%;pointer-events:none;z-index:1000;overflow:hidden}.cursor-indicator{position:absolute;display:flex;align-items:flex-start;gap:4px;transition:left .05s ease-out,top .05s ease-out;transform:translate(-2px,-2px)}.cursor-indicator.mobile{transform:translate(-50%,-50%)}.cursor-indicator .cursor-svg{filter:drop-shadow(0 1px 2px rgba(0,0,0,.3))}.cursor-indicator .material-symbols-outlined{font-size:24px;color:var(--cursor-color);filter:drop-shadow(0 1px 2px rgba(0,0,0,.3));animation:pulse 2s infinite}.cursor-name{font-size:11px;font-weight:600;color:#fff;background:var(--cursor-color);padding:2px 6px;border-radius:4px;white-space:nowrap;box-shadow:0 1px 3px #0003;margin-top:16px}.cursor-indicator.mobile .cursor-name{margin-top:0;margin-left:4px}@keyframes pulse{0%,to{opacity:1;transform:scale(1)}50%{opacity:.7;transform:scale(1.1)}}@media(max-width:768px){.cursor-indicator.desktop{display:none}}.cursor-avatar{position:absolute;left:18px;top:18px;width:16px;height:16px;border-radius:50%;border:1px solid white;box-shadow:0 1px 3px #0000004d}.cursor-indicator.idle{opacity:.4;transition:opacity .5s ease}.cursor-indicator.idle .cursor-name{background:#80808099}:root{--toolbar-bg: #1a1a2e;--toolbar-bg-glass: rgba(26, 26, 46, .95);--toolbar-border: rgba(255, 255, 255, .08);--tool-active-bg: rgba(99, 102, 241, .2);--tool-active-border: #6366f1;--tool-hover-bg: rgba(255, 255, 255, .08);--tooltip-bg: #16213e;--glow-color: rgba(99, 102, 241, .4);--transition-fast: .15s cubic-bezier(.4, 0, .2, 1);--transition-smooth: .25s cubic-bezier(.4, 0, .2, 1);--transition-spring: .3s cubic-bezier(.34, 1.56, .64, 1)}.whiteboard-container{position:relative;width:100%;height:100%;background:var(--bg-secondary, #f5f5f5);overflow:hidden}.toolbar-wrapper{position:absolute;top:20px;left:20px;display:flex;flex-direction:column;gap:12px;z-index:100}.main-toolbar{background:var(--toolbar-bg-glass);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-radius:16px;padding:10px;display:flex;flex-direction:column;align-items:center;gap:4px;box-shadow:0 8px 32px #0000004d,0 0 1px #ffffff1a inset;border:1px solid var(--toolbar-border);width:52px}.tool-btn{position:relative;width:36px;height:36px;border-radius:10px;background:transparent;border:none;display:flex;align-items:center;justify-content:center;cursor:pointer;color:#fff9;transition:transform var(--transition-spring),background var(--transition-fast),color var(--transition-fast),box-shadow var(--transition-smooth);overflow:visible}.tool-btn:hover{color:#fff;background:var(--tool-hover-bg);transform:scale(1.08)}.tool-btn.active{color:#fff;background:var(--tool-active-bg);box-shadow:0 0 0 2px var(--tool-active-border),0 0 20px var(--glow-color)}.tool-btn.active:before{content:"";position:absolute;left:-10px;top:50%;transform:translateY(-50%);width:3px;height:20px;background:linear-gradient(180deg,#6366f1,#8b5cf6);border-radius:2px;animation:indicatorGlow 2s ease-in-out infinite alternate}@keyframes indicatorGlow{0%{box-shadow:0 0 8px var(--glow-color)}to{box-shadow:0 0 16px var(--glow-color)}}.tool-btn .material-symbols-outlined{font-size:22px;transition:transform var(--transition-spring)}.tool-btn:hover .material-symbols-outlined{transform:scale(1.05)}.tool-btn:active{transform:scale(.95)}.tool-btn[data-tooltip]{position:relative}.tool-btn[data-tooltip]:after{content:attr(data-tooltip);position:absolute;left:100%;top:50%;transform:translateY(-50%) translate(8px);padding:8px 14px;background:var(--tooltip-bg);color:#fff;font-size:13px;font-weight:500;white-space:nowrap;border-radius:8px;opacity:0;visibility:hidden;transition:opacity var(--transition-smooth),transform var(--transition-smooth);pointer-events:none;box-shadow:0 4px 16px #0000004d;z-index:1000;letter-spacing:.3px}.tool-btn[data-tooltip]:before{content:"";position:absolute;left:calc(100% + 4px);top:50%;transform:translateY(-50%);border:6px solid transparent;border-right-color:var(--tooltip-bg);opacity:0;visibility:hidden;transition:opacity var(--transition-smooth),transform var(--transition-smooth);z-index:1001}.tool-btn[data-tooltip]:hover:after,.tool-btn[data-tooltip]:hover:before{opacity:1;visibility:visible;transform:translateY(-50%) translate(12px)}.tool-btn[data-tooltip]:hover:before{transform:translateY(-50%) translate(8px)}.sub-menu{position:absolute;left:64px;background:var(--toolbar-bg-glass);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-radius:14px;padding:10px;display:flex;flex-direction:column;gap:6px;box-shadow:0 8px 32px #0000004d,0 0 1px #ffffff1a inset;border:1px solid var(--toolbar-border);min-width:52px;transform-origin:left center;animation:subMenuSlideIn var(--transition-smooth) ease-out}@keyframes subMenuSlideIn{0%{opacity:0;transform:translate(-8px) scale(.95)}to{opacity:1;transform:translate(0) scale(1)}}.sub-menu:before{content:"";position:absolute;left:-6px;top:14px;border:6px solid 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var(--spacing-md)}.app-title{font-size:18px}.app-main{padding:var(--spacing-xs);gap:var(--spacing-xs)}.top-section{min-height:80px;max-height:100px}.top-section.collapsed{min-height:28px;height:28px}.whiteboard-section{flex:2;min-height:60vh}.phase-section{max-height:200px}.player-section{max-height:80px}}@media(max-width:768px)and (orientation:landscape){.top-section{min-height:60px;max-height:80px}.whiteboard-section{min-height:50vh}.phase-section{max-height:none}}@media(max-width:480px){.app-header{flex-direction:row;justify-content:space-between}.app-title{font-size:16px}.app-badge{font-size:10px;padding:2px var(--spacing-sm)}}