:root{--primary: #4a5568;--danger: #e53e3e;--success: #38a169;--card-bg: #ffffff;--text-primary: #1a202c;--text-secondary: #718096;--border: #e2e8f0;--bg-light: #f7fafc;--shadow: 0 1px 3px rgba(0, 0, 0, .1)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,sans-serif;background:var(--bg-light);color:var(--text-primary);line-height:1.5;min-height:100vh;padding:16px}.container{max-width:1600px;margin:0 auto;height:calc(100vh - 32px);display:flex;flex-direction:column}header{display:flex;justify-content:space-between;align-items:center;padding:16px 24px;background:var(--card-bg);border:1px solid var(--border);border-radius:8px;margin-bottom:16px}header h1{font-size:1.5rem;font-weight:600;color:var(--text-primary);margin:0}.header-controls{display:flex;align-items:center;gap:16px}.status-badge{display:inline-flex;align-items:center;gap:8px;padding:6px 12px;background:var(--bg-light);border:1px solid var(--border);border-radius:6px;font-size:.85rem;font-weight:500}.ngrok-info{padding:6px 12px;background:var(--bg-light);border:1px solid var(--border);border-radius:6px;font-size:.8rem;color:var(--text-secondary)}.ngrok-info small{font-family:Courier New,monospace}.toggle-switch{display:inline-flex;align-items:center;gap:8px;cursor:pointer;-webkit-user-select:none;user-select:none}.toggle-switch input[type=checkbox]{position:relative;width:44px;height:24px;-webkit-appearance:none;-moz-appearance:none;appearance:none;background:var(--border);border-radius:12px;outline:none;cursor:pointer;transition:background .3s}.toggle-switch input[type=checkbox]:checked{background:var(--primary)}.toggle-switch input[type=checkbox]:disabled{opacity:.5;cursor:not-allowed}.toggle-switch input[type=checkbox]:before{content:"";position:absolute;width:20px;height:20px;border-radius:50%;background:#fff;top:2px;left:2px;transition:transform .3s;box-shadow:0 2px 4px #0003}.toggle-switch input[type=checkbox]:checked:before{transform:translate(20px)}.toggle-label{font-size:.85rem;font-weight:500;color:var(--text-primary)}.toggle-group{margin-bottom:12px;padding:12px;background:var(--bg-light);border-radius:6px}.debug-only{display:none}.status-dot{width:8px;height:8px;border-radius:50%;background:var(--success);animation:pulse 2s infinite}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}.main-content{display:grid;grid-template-columns:320px 1fr;gap:16px;flex:1;overflow:hidden}.main-content.three-panel{grid-template-columns:260px minmax(360px,1fr) minmax(520px,1.35fr)}.panel{background:var(--card-bg);border-radius:8px;padding:20px;border:1px solid var(--border);display:flex;flex-direction:column;overflow-y:auto;gap:16px}.panel-title{font-size:1.25rem;font-weight:600;color:var(--text-primary);margin:0 0 8px;padding-bottom:12px;border-bottom:2px solid var(--border)}.help-point-panel{background:linear-gradient(to bottom,#fff5f5 0%,var(--card-bg) 10%)}.operator-panel{background:linear-gradient(to bottom,#f0f9ff 0%,var(--card-bg) 10%)}.media-player-panel{background:linear-gradient(to bottom,#f0fdf4 0%,var(--card-bg) 10%);overflow-x:hidden;overflow-y:auto}.media-player-panel--live .media-settings-navigator{display:none}.media-player-panel--live .translation-settings{grid-column:1 / -1}.media-player-panel--live .video-container,.media-player-panel--live .captions-only-container{flex:1;min-height:280px}.media-settings{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.media-player-panel .media-player-info{margin-bottom:0;grid-column:1 / -1}.media-player-panel .card{padding:12px}.translation-settings{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:8px 10px;align-items:end}.translation-settings .input-group{margin-bottom:0}.translation-settings .toggle-group{margin:0;padding:8px 10px}.translation-settings .toggle-label{font-size:.8rem}.translation-settings .translation-notice{grid-column:1 / 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fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.transcription-line.partial{opacity:.7;font-style:italic}.transcription-line .timestamp{display:none}.transcription-line .text{color:#fff;line-height:1.4;text-shadow:0 2px 4px rgba(0,0,0,.5)}.transcription-line .text-confirmed{color:#fff;font-weight:500}.transcription-line .text-unconfirmed{color:#ffffffb3;font-style:italic;text-shadow:0 2px 4px rgba(0,0,0,.5)}.ws-status{display:flex;align-items:center;gap:6px;margin-top:8px;font-size:.75rem;color:var(--text-secondary)}.ws-dot{width:6px;height:6px;border-radius:50%;background:#cbd5e0}.ws-dot.connected{background:var(--success);animation:pulse 2s infinite}.bsl-player-placeholder{width:100%;height:100%;background:#1a202c;display:flex;align-items:center;justify-content:center}.placeholder-content{text-align:center;color:#ffffff80}.placeholder-icon{font-size:3rem;display:block;margin-bottom:12px;opacity:.5}.placeholder-content p{font-size:.9rem;margin:0}.bsl-video{background:#000}.bsl-video:before,.bsl-video:after{display:none!important;content:none!important}.video-container video.bsl-video:before,.video-container video.bsl-video:after{display:none!important;content:none!important}.bsl-video::-webkit-media-controls-start-playback-button{display:none!important;opacity:0!important;visibility:hidden!important}.bsl-video[networkState="2"]:before,.bsl-video[networkState="3"]:before,.bsl-video[readyState="0"]:before,.bsl-video[readyState="1"]:before,.bsl-video[readyState="2"]:before{display:none!important;content:none!important}.bsl-video:not([src]):before{display:none!important}.video-container:before,.video-container:after{display:none!important}@media(max-width:1280px){.main-content.three-panel{grid-template-columns:240px minmax(320px,1fr) minmax(420px,1.2fr)}.media-settings{grid-template-columns:1fr}.translation-settings{grid-template-columns:1fr;gap:10px}.fetch-transcript-card{grid-template-columns:1fr}.fetch-transcript-card .btn{width:100%}}@media(max-width:768px){.main-content{grid-template-columns:1fr}.video-section{min-height:400px}}@keyframes spin{to{transform:rotate(360deg)}}.loading:after{content:"";display:inline-block;width:16px;height:16px;border:2px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;animation:spin .6s linear infinite;margin-left:8px}.translation-controls{display:flex;flex-direction:column;gap:12px;padding:12px;background:var(--bg-light);border-radius:6px;margin-bottom:12px}.language-select-group{display:flex;flex-direction:column;gap:6px}.language-select{width:100%;padding:10px 12px;font-size:.9rem;border:1px solid var(--border);border-radius:6px;background:var(--card-bg);cursor:pointer;transition:border-color .2s}.language-select:focus{outline:none;border-color:var(--primary)}.language-badge{display:inline-block;padding:2px 6px;font-size:.65rem;font-weight:600;background:var(--primary);color:#fff;border-radius:4px;margin-right:8px;text-transform:uppercase;letter-spacing:.5px}.translation-notice{display:none;padding:8px 12px;font-size:.8rem;color:#744210;background:#fffbeb;border:1px solid #fcd34d;border-radius:6px;margin-top:8px}.caption-translated{border-left-color:var(--success)!important}.caption-translated .language-badge{background:var(--success)}.original-text-line{margin-top:6px;padding-top:6px;border-top:1px dashed var(--border);font-size:.85rem;color:var(--text-secondary);font-style:italic}.captions-display .original-text-line{display:block}.show-original-toggle{display:flex;align-items:center;gap:8px;padding-top:8px;border-top:1px solid var(--border);margin-top:4px}.show-original-toggle input[type=checkbox]{width:16px;height:16px;cursor:pointer}.show-original-toggle label{font-size:.85rem;color:var(--text-primary);cursor:pointer}