:root{--bg-primary: #0f0f0f;--bg-secondary: #1a1a1a;--bg-tertiary: #252525;--bg-elevated: #2a2a2a;--bg-hover: #333333;--text-primary: #ffffff;--text-secondary: #a0a0a0;--text-tertiary: #666666;--accent: #625df5;--accent-hover: #7571f7;--accent-light: rgba(98, 93, 245, .15);--red: #ef4444;--red-hover: #f87171;--red-light: rgba(239, 68, 68, .15);--green: #22c55e;--green-light: rgba(34, 197, 94, .15);--yellow: #eab308;--yellow-light: rgba(234, 179, 8, .15);--border: #333333;--border-light: #444444;--radius-sm: 6px;--radius-md: 10px;--radius-lg: 14px;--radius-xl: 20px;--radius-full: 9999px;--shadow: 0 4px 24px rgba(0, 0, 0, .4);--shadow-lg: 0 8px 40px rgba(0, 0, 0, .6);--font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-mono: "SF Mono", "Fira Code", monospace;--transition: .15s ease;--transition-slow: .25s ease}*{margin:0;padding:0;box-sizing:border-box}html,body,#root{height:100%;width:100%;overflow:hidden}body{font-family:var(--font-sans);background:var(--bg-primary);color:var(--text-primary);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--border);border-radius:var(--radius-full)}::-webkit-scrollbar-thumb:hover{background:var(--border-light)}.app{display:flex;flex-direction:column;height:100vh;overflow:hidden}.app-header{display:flex;align-items:center;justify-content:space-between;padding:12px 24px;border-bottom:1px solid var(--border);background:var(--bg-secondary);flex-shrink:0;z-index:10}.app-header-left{display:flex;align-items:center;gap:12px}.app-logo{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;letter-spacing:-.02em}.app-logo svg{color:var(--accent)}.app-header-right{display:flex;align-items:center;gap:12px}.app-main{flex:1;overflow:hidden;display:flex;flex-direction:column}.nav-tabs{display:flex;gap:2px;background:var(--bg-tertiary);border-radius:var(--radius-md);padding:3px}.nav-tab{display:flex;align-items:center;gap:6px;padding:6px 14px;border:none;background:none;color:var(--text-secondary);font-size:13px;font-weight:500;cursor:pointer;border-radius:var(--radius-sm);transition:var(--transition)}.nav-tab:hover{color:var(--text-primary);background:var(--bg-hover)}.nav-tab.active{color:var(--text-primary);background:var(--bg-elevated)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:8px 16px;border:none;border-radius:var(--radius-md);font-size:13px;font-weight:500;font-family:var(--font-sans);cursor:pointer;transition:var(--transition);white-space:nowrap;text-decoration:none}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover:not(:disabled){background:var(--accent-hover)}.btn-danger{background:var(--red);color:#fff}.btn-danger:hover:not(:disabled){background:var(--red-hover)}.btn-ghost{background:transparent;color:var(--text-secondary);border:1px solid var(--border)}.btn-ghost:hover:not(:disabled){color:var(--text-primary);border-color:var(--border-light);background:var(--bg-hover)}.btn-icon{width:36px;height:36px;padding:0;border-radius:var(--radius-md)}.btn-lg{padding:12px 24px;font-size:15px;border-radius:var(--radius-lg)}.btn-sm{padding:5px 10px;font-size:12px}.recorder-page{display:flex;height:100%;overflow:hidden}.recorder-main{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:32px;position:relative;overflow:hidden}.recorder-sidebar{width:300px;border-left:1px solid var(--border);background:var(--bg-secondary);display:flex;flex-direction:column;flex-shrink:0;overflow-y:auto}.sidebar-section{padding:20px;border-bottom:1px solid var(--border)}.sidebar-section-title{font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.05em;color:var(--text-tertiary);margin-bottom:12px}.source-options{display:flex;flex-direction:column;gap:6px}.source-option{display:flex;align-items:center;gap:10px;padding:10px 12px;border:1px solid var(--border);border-radius:var(--radius-md);background:transparent;color:var(--text-secondary);font-size:13px;cursor:pointer;transition:var(--transition);font-family:var(--font-sans);text-align:left;width:100%}.source-option:hover{border-color:var(--border-light);color:var(--text-primary)}.source-option.active{border-color:var(--accent);background:var(--accent-light);color:var(--text-primary)}.toggle-row{display:flex;align-items:center;justify-content:space-between;padding:8px 0}.toggle-label{font-size:13px;color:var(--text-secondary)}.toggle{position:relative;width:40px;height:22px;background:var(--bg-tertiary);border-radius:var(--radius-full);border:none;cursor:pointer;transition:var(--transition);flex-shrink:0}.toggle.active{background:var(--accent)}.toggle:after{content:"";position:absolute;top:3px;left:3px;width:16px;height:16px;background:#fff;border-radius:50%;transition:var(--transition)}.toggle.active:after{transform:translate(18px)}.preview-container{position:relative;width:100%;max-width:900px;aspect-ratio:16 / 9;background:var(--bg-secondary);border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--border)}.preview-container video{width:100%;height:100%;object-fit:contain}.preview-placeholder{display:flex;flex-direction:column;align-items:center;justify-content:center;width:100%;height:100%;gap:16px;color:var(--text-tertiary)}.preview-placeholder svg{width:64px;height:64px;opacity:.3}.preview-placeholder p{font-size:14px}.webcam-pip{position:absolute;bottom:16px;right:16px;width:180px;height:135px;border-radius:var(--radius-lg);overflow:hidden;border:2px solid var(--border);background:var(--bg-primary);cursor:move;z-index:5;box-shadow:var(--shadow)}.webcam-pip video{width:100%;height:100%;object-fit:cover;transform:scaleX(-1)}.webcam-pip-close{position:absolute;top:4px;right:4px;width:22px;height:22px;border-radius:50%;background:#0009;border:none;color:#fff;display:flex;align-items:center;justify-content:center;cursor:pointer;font-size:12px;opacity:0;transition:var(--transition)}.webcam-pip:hover .webcam-pip-close{opacity:1}.countdown-overlay{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:#000000b3;z-index:20;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.countdown-number{font-size:120px;font-weight:700;color:#fff;animation:countdownPulse 1s ease-in-out infinite}@keyframes countdownPulse{0%{transform:scale(.5);opacity:0}50%{transform:scale(1.1);opacity:1}to{transform:scale(1);opacity:.8}}.recording-controls{display:flex;align-items:center;gap:12px;margin-top:24px}.record-btn{width:56px;height:56px;border-radius:50%;border:3px solid var(--red);background:transparent;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:var(--transition);position:relative}.record-btn:hover{border-color:var(--red-hover)}.record-btn-inner{width:24px;height:24px;border-radius:50%;background:var(--red);transition:var(--transition)}.record-btn.recording .record-btn-inner{width:20px;height:20px;border-radius:4px}.recording-timer{font-size:18px;font-weight:600;font-variant-numeric:tabular-nums;min-width:70px}.recording-indicator{width:8px;height:8px;border-radius:50%;background:var(--red);animation:blink 1s infinite}.recording-indicator.paused{animation:none;background:var(--yellow)}@keyframes blink{0%,to{opacity:1}50%{opacity:.3}}.editor-page{display:flex;flex-direction:column;height:100%;overflow:hidden}.editor-top{flex:1;display:flex;align-items:center;justify-content:center;padding:24px;min-height:0}.editor-video-container{position:relative;max-width:800px;width:100%;aspect-ratio:16 / 9;background:#000;border-radius:var(--radius-lg);overflow:hidden}.editor-video-container video{width:100%;height:100%;object-fit:contain}.editor-bottom{flex-shrink:0;background:var(--bg-secondary);border-top:1px solid var(--border);padding:20px 24px}.editor-controls{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}.editor-controls-left,.editor-controls-right{display:flex;align-items:center;gap:12px}.trim-container{position:relative;width:100%;height:48px;background:var(--bg-tertiary);border-radius:var(--radius-md);overflow:hidden}.trim-bar{position:absolute;top:0;bottom:0;background:var(--accent-light);border-left:3px solid var(--accent);border-right:3px solid var(--accent)}.trim-handle{position:absolute;top:0;bottom:0;width:12px;cursor:ew-resize;z-index:2;display:flex;align-items:center;justify-content:center}.trim-handle:after{content:"";width:3px;height:20px;background:var(--accent);border-radius:2px}.trim-handle-left{left:-6px}.trim-handle-right{right:-6px}.trim-playhead{position:absolute;top:0;bottom:0;width:2px;background:#fff;z-index:3;pointer-events:none}.trim-progress{position:absolute;top:0;bottom:0;left:0;background:#ffffff0d}.trim-time-labels{display:flex;justify-content:space-between;margin-top:6px;font-size:11px;color:var(--text-tertiary);font-variant-numeric:tabular-nums}.title-input-group{display:flex;align-items:center;gap:8px;margin-bottom:16px}.title-input{flex:1;background:var(--bg-tertiary);border:1px solid var(--border);border-radius:var(--radius-md);padding:10px 14px;color:var(--text-primary);font-size:15px;font-weight:500;font-family:var(--font-sans);outline:none;transition:var(--transition)}.title-input:focus{border-color:var(--accent)}.upload-overlay{position:fixed;inset:0;background:#000c;display:flex;align-items:center;justify-content:center;z-index:100;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.upload-modal{background:var(--bg-secondary);border-radius:var(--radius-xl);padding:40px;width:420px;max-width:90vw;text-align:center;border:1px solid var(--border);box-shadow:var(--shadow-lg)}.upload-modal h3{font-size:18px;font-weight:600;margin-bottom:8px}.upload-modal p{font-size:13px;color:var(--text-secondary);margin-bottom:24px}.progress-bar-container{width:100%;height:6px;background:var(--bg-tertiary);border-radius:var(--radius-full);overflow:hidden;margin-bottom:12px}.progress-bar{height:100%;background:var(--accent);border-radius:var(--radius-full);transition:width .2s ease}.progress-text{font-size:13px;color:var(--text-secondary);font-variant-numeric:tabular-nums}.upload-success{text-align:center}.upload-success-icon{width:64px;height:64px;margin:0 auto 16px;background:var(--green-light);border-radius:50%;display:flex;align-items:center;justify-content:center;color:var(--green)}.share-link-container{display:flex;gap:8px;margin-top:16px}.share-link-input{flex:1;background:var(--bg-tertiary);border:1px solid var(--border);border-radius:var(--radius-md);padding:10px 14px;color:var(--text-primary);font-size:12px;font-family:var(--font-mono);outline:none}.library-page{padding:24px;overflow-y:auto;height:100%}.library-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px}.library-header h2{font-size:20px;font-weight:600}.library-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:16px}.video-card{background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius-lg);overflow:hidden;transition:var(--transition);cursor:pointer}.video-card:hover{border-color:var(--border-light);transform:translateY(-2px);box-shadow:var(--shadow)}.video-card-thumbnail{aspect-ratio:16 / 9;background:var(--bg-tertiary);display:flex;align-items:center;justify-content:center;position:relative;overflow:hidden}.video-card-thumbnail img{width:100%;height:100%;object-fit:cover}.video-card-thumbnail .play-icon{position:absolute;width:48px;height:48px;background:#0009;border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;opacity:0;transition:var(--transition)}.video-card:hover .play-icon{opacity:1}.video-card-info{padding:14px}.video-card-title{font-size:14px;font-weight:500;margin-bottom:4px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.video-card-meta{font-size:12px;color:var(--text-tertiary);display:flex;align-items:center;gap:8px}.video-card-actions{display:flex;gap:6px;padding:0 14px 14px}.auth-button{display:flex;align-items:center;gap:8px}.auth-avatar{width:28px;height:28px;border-radius:50%;border:2px solid var(--border)}.auth-name{font-size:13px;font-weight:500}.error-toast{position:fixed;bottom:24px;left:50%;transform:translate(-50%);background:var(--red);color:#fff;padding:12px 20px;border-radius:var(--radius-md);font-size:13px;font-weight:500;z-index:200;display:flex;align-items:center;gap:8px;box-shadow:var(--shadow-lg);animation:slideUp .3s ease;max-width:90vw}@keyframes slideUp{0%{transform:translate(-50%) translateY(20px);opacity:0}to{transform:translate(-50%) translateY(0);opacity:1}}.shortcuts-panel{padding:20px}.shortcut-row{display:flex;align-items:center;justify-content:space-between;padding:6px 0;font-size:12px}.shortcut-keys{display:flex;gap:4px}.shortcut-key{padding:2px 6px;background:var(--bg-tertiary);border:1px solid var(--border);border-radius:4px;font-size:11px;font-family:var(--font-mono);color:var(--text-secondary)}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:60px 20px;text-align:center;color:var(--text-tertiary)}.empty-state svg{width:48px;height:48px;margin-bottom:16px;opacity:.4}.empty-state p{font-size:14px;margin-bottom:8px}.transcription-panel{background:var(--bg-tertiary);border-radius:var(--radius-md);padding:12px;font-size:13px;color:var(--text-secondary);max-height:150px;overflow-y:auto;line-height:1.5;white-space:pre-wrap}.trim-dimmed{position:absolute;top:0;bottom:0;background:#00000080;z-index:1;pointer-events:none}.countdown-config{display:flex;align-items:center;justify-content:center;gap:12px;padding:8px 0 4px}.countdown-value{font-size:15px;font-weight:600;font-variant-numeric:tabular-nums;min-width:28px;text-align:center;color:var(--text-primary)}.spinning{animation:spin 1s linear infinite;display:block}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}@media(max-width:900px){.recorder-page{flex-direction:column}.recorder-sidebar{width:100%;border-left:none;border-top:1px solid var(--border);flex-direction:row;overflow-x:auto;overflow-y:hidden}.sidebar-section{min-width:200px;border-bottom:none;border-right:1px solid var(--border)}.library-grid{grid-template-columns:repeat(auto-fill,minmax(240px,1fr))}}@media(max-width:640px){.app-header{padding:10px 16px}.recorder-main{padding:16px}.webcam-pip{width:120px;height:90px}.recording-controls{gap:8px}.library-page{padding:16px}}