:root{--bg-base: #0d1117;--bg-surface: #161b22;--bg-elevated: #1c2130;--bg-hover: #21273a;--border: #21262d;--border-muted: #30363d;--text-primary: #e6edf3;--text-secondary: #8b949e;--text-muted: #6e7681;--accent: #2563eb;--accent-hover: #3b82f6;--accent-dim: rgba(37, 99, 235, .18);--success: #22c55e;--success-dim: rgba(34, 197, 94, .15);--error: #ef4444;--error-dim: rgba(239, 68, 68, .15);--warning: #f59e0b;--warning-dim: rgba(245, 158, 11, .15);--radius-sm: 4px;--radius: 8px;--radius-lg: 12px;--font-mono: "JetBrains Mono", "Fira Code", "Cascadia Code", monospace}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}body{background:var(--bg-base);color:var(--text-primary);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Inter,sans-serif;font-size:14px;line-height:1.6;min-height:100vh}#root,.app-shell{display:flex;flex-direction:column;min-height:100vh}.app-content{max-width:1100px;width:100%;margin:0 auto;padding:32px 24px;flex:1}.banner{background:linear-gradient(90deg,#0f172a,#1e2d4a,#0f172a);border-bottom:1px solid var(--border);padding:10px 24px;display:flex;align-items:center;gap:12px;font-size:12.5px;color:var(--text-secondary)}.banner-logo{font-weight:700;color:var(--accent-hover);letter-spacing:.04em}.banner-logo-img{height:28px;border-radius:6px}.banner a{color:var(--accent-hover);text-decoration:none;font-weight:500}.banner a:hover{text-decoration:underline}.banner-sep{color:var(--border-muted)}.nav{background:var(--bg-surface);border-bottom:1px solid var(--border);padding:0 24px;display:flex;align-items:center;gap:0}.nav-brand{font-size:15px;font-weight:700;color:var(--text-primary);letter-spacing:-.01em;padding:16px 0;margin-right:32px;display:flex;align-items:center;gap:8px}.nav-brand span{color:var(--accent-hover)}.nav-links{display:flex;gap:0}.nav-link{padding:18px 16px;color:var(--text-secondary);font-size:13.5px;font-weight:500;cursor:pointer;border-bottom:2px solid transparent;transition:color .15s,border-color .15s;-webkit-user-select:none;user-select:none}.nav-link:hover{color:var(--text-primary)}.nav-link.active{color:var(--text-primary);border-bottom-color:var(--accent)}.card{background:var(--bg-surface);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden}.card-header{padding:16px 20px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between}.card-title{font-size:14px;font-weight:600;color:var(--text-primary)}.card-body{padding:20px}.table-wrap{overflow-x:auto}table{width:100%;border-collapse:collapse}th{text-align:left;padding:10px 16px;font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.06em;color:var(--text-muted);border-bottom:1px solid var(--border);white-space:nowrap}td{padding:12px 16px;border-bottom:1px solid var(--border);color:var(--text-primary);font-size:13.5px}tr:last-child td{border-bottom:none}tr.clickable{cursor:pointer}tr.clickable:hover td,tr.expanded td{background:var(--bg-hover)}.badge{display:inline-flex;align-items:center;gap:5px;padding:2px 8px;border-radius:20px;font-size:11.5px;font-weight:500}.badge-success{background:var(--success-dim);color:var(--success)}.badge-error{background:var(--error-dim);color:var(--error)}.badge-warning{background:var(--warning-dim);color:var(--warning)}.badge-muted{background:var(--bg-elevated);color:var(--text-muted)}.badge-accent{background:var(--accent-dim);color:var(--accent-hover)}.dot{width:6px;height:6px;border-radius:50%;background:currentColor;display:inline-block}.dot-pulse{animation:pulse 1.4s ease-in-out infinite}@keyframes pulse{0%,to{opacity:1}50%{opacity:.35}}.form-group{margin-bottom:18px}.form-label{display:block;font-size:12.5px;font-weight:600;color:var(--text-secondary);margin-bottom:6px;text-transform:uppercase;letter-spacing:.05em}.form-input,.form-select{width:100%;background:var(--bg-base);border:1px solid var(--border-muted);border-radius:var(--radius-sm);color:var(--text-primary);font-size:13.5px;padding:8px 12px;outline:none;transition:border-color .15s}.form-input:focus,.form-select:focus{border-color:var(--accent)}.form-input[disabled],.form-select[disabled]{opacity:.5;cursor:not-allowed}.form-hint{font-size:11.5px;color:var(--text-muted);margin-top:4px}.btn{display:inline-flex;align-items:center;gap:6px;padding:7px 14px;border-radius:var(--radius-sm);font-size:13px;font-weight:500;cursor:pointer;border:1px solid transparent;transition:background .15s,border-color .15s,opacity .15s;white-space:nowrap}.btn:disabled{opacity:.45;cursor:not-allowed}.btn-primary{background:var(--accent);color:#fff;border-color:var(--accent)}.btn-primary:hover:not(:disabled){background:var(--accent-hover);border-color:var(--accent-hover)}.btn-secondary{background:var(--bg-elevated);color:var(--text-primary);border-color:var(--border-muted)}.btn-secondary:hover:not(:disabled){background:var(--bg-hover)}.btn-ghost{background:transparent;color:var(--text-secondary);border-color:transparent}.btn-ghost:hover:not(:disabled){color:var(--text-primary);background:var(--bg-elevated)}.btn-sm{padding:4px 10px;font-size:12px}.drop-zone{border:2px dashed var(--border-muted);border-radius:var(--radius);padding:28px 20px;text-align:center;cursor:pointer;transition:border-color .15s,background .15s}.drop-zone:hover,.drop-zone.dragging{border-color:var(--accent);background:var(--accent-dim)}.drop-zone-text{color:var(--text-secondary);font-size:13px}.drop-zone-text strong{color:var(--text-primary)}.upload-panel{padding:20px 24px;background:var(--bg-elevated);border-top:1px solid var(--border)}.upload-panel-inner{display:grid;grid-template-columns:1fr 1fr;gap:20px;align-items:start}@media (max-width: 640px){.upload-panel-inner{grid-template-columns:1fr}}.segments-list{display:flex;flex-direction:column;gap:8px}.segment-item{display:flex;gap:12px;align-items:flex-start;padding:10px 12px;background:var(--bg-elevated);border-radius:var(--radius-sm);border-left:3px solid var(--accent)}.segment-time{font-family:var(--font-mono);font-size:11.5px;color:var(--text-muted);white-space:nowrap;padding-top:1px;min-width:120px}.segment-text{color:var(--text-primary);font-size:13.5px}.settings-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}@media (max-width: 700px){.settings-grid{grid-template-columns:1fr}}.settings-section-title{font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.07em;color:var(--text-muted);margin-bottom:16px}.text-muted{color:var(--text-muted)}.text-secondary{color:var(--text-secondary)}.text-error{color:var(--error)}.text-success{color:var(--success)}.text-mono{font-family:var(--font-mono)}.mt-12{margin-top:12px}.mt-20{margin-top:20px}.mt-32{margin-top:32px}.gap-12{gap:12px}.flex{display:flex}.items-center{align-items:center}.justify-between{justify-content:space-between}.page-heading{font-size:22px;font-weight:700;color:var(--text-primary);letter-spacing:-.02em;margin-bottom:6px}.page-sub{color:var(--text-secondary);font-size:13.5px;margin-bottom:28px}.empty-state{padding:48px 24px;text-align:center;color:var(--text-muted)}.empty-state-icon{font-size:36px;margin-bottom:12px}.empty-state-title{font-size:15px;font-weight:600;color:var(--text-secondary);margin-bottom:6px}.alert{padding:12px 16px;border-radius:var(--radius-sm);font-size:13px;margin-bottom:20px}.alert-error{background:var(--error-dim);color:var(--error);border:1px solid rgba(239,68,68,.3)}.alert-success{background:var(--success-dim);color:var(--success);border:1px solid rgba(34,197,94,.3)}.alert-info{background:var(--accent-dim);color:var(--accent-hover);border:1px solid rgba(37,99,235,.3)}.spinner{width:16px;height:16px;border:2px solid var(--border-muted);border-top-color:var(--accent);border-radius:50%;animation:spin .7s linear infinite;display:inline-block}@keyframes spin{to{transform:rotate(360deg)}}.waveform-canvas{width:100%;height:56px;display:block;background:var(--bg-base);border-radius:var(--radius-sm);border:1px solid var(--border)}.timeline-bar-wrap{margin-bottom:16px}.timeline-bar-label{font-size:11.5px;color:var(--text-muted);margin-bottom:4px}.timeline-bar{position:relative;height:10px;border-radius:5px;overflow:hidden}.timeline-bar-dataset{position:absolute;top:0;right:0;bottom:0;left:0;background:var(--bg-elevated);border:1px solid var(--border-muted);border-radius:5px}.timeline-bar-audio{position:absolute;top:0;bottom:0;background:var(--accent);border-radius:5px;opacity:.75}.radio-group{display:flex;flex-direction:column;gap:6px}.radio-label{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-primary);cursor:pointer;-webkit-user-select:none;user-select:none}.radio-label input[type=radio]{accent-color:var(--accent)}.readonly-notice{display:flex;align-items:center;gap:8px;color:var(--text-muted);font-size:12.5px;padding:10px 14px;background:var(--bg-elevated);border-radius:var(--radius-sm);border:1px solid var(--border);margin-bottom:20px}