:root{--bg-color:#0a0a0a;--dark-bg:#111111;--medium-bg:#1a1a1a;--light-bg:#252525;--border-color:#2a2a2a;--text-color:#ffffff;--text-muted:#888888;--accent-color:#B80000;--accent-light:#D32F2F;--success-color:#22c55e;--warning-color:#f59e0b;--danger-color:#ef4444;--info-color:#3b82f6;--pose-color:#22c55e;--face-color:#3b82f6}*{margin:0;padding:0;box-sizing:border-box}html,body{width:100%;height:100%;font-family:'Inter',-apple-system,BlinkMacSystemFont,sans-serif;background:var(--bg-color);color:var(--text-color);overflow-x:hidden}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:var(--dark-bg);border-radius:3px}::-webkit-scrollbar-thumb{background:var(--border-color);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}#loading-screen{position:fixed;top:0;left:0;width:100%;height:100%;background:var(--bg-color);display:flex;flex-direction:column;justify-content:center;align-items:center;z-index:9999;transition:opacity 0.5s ease,visibility 0.5s ease}#loading-screen.hidden{opacity:0;visibility:hidden;pointer-events:none}.loading-logo{width:120px;margin-bottom:30px;animation:pulse 2s ease-in-out infinite}@keyframes pulse{0%,100%{opacity:0.5;transform:scale(0.98)}50%{opacity:1;transform:scale(1)}}.loading-text{font-size:14px;color:var(--text-muted);text-transform:uppercase;letter-spacing:2px}.loading-subtext{font-size:11px;color:var(--text-muted);margin-top:10px;opacity:0.7}.loading-bar-container{width:250px;height:3px;background:var(--border-color);margin:20px 0;border-radius:2px;overflow:hidden}.loading-bar{height:100%;background:var(--accent-color);width:0%;transition:width 0.3s ease}.header{display:flex;align-items:center;justify-content:space-between;padding:15px 30px;background:var(--dark-bg);border-bottom:1px solid var(--border-color)}.header-left{display:flex;align-items:center;gap:20px}.header-logo{height:30px}.header-title{font-size:18px;font-weight:600}.header-title span{color:var(--accent-color)}.back-btn{display:flex;align-items:center;gap:8px;padding:8px 16px;background:var(--medium-bg);border:1px solid var(--border-color);color:var(--text-color);text-decoration:none;font-size:13px;border-radius:6px;transition:all 0.3s ease}.back-btn:hover{background:var(--light-bg);border-color:var(--accent-color)}.main-container{display:flex;height:calc(100vh - 61px);overflow:hidden}.video-panel{flex:1;display:flex;flex-direction:column;padding:20px;gap:15px;min-width:0}.video-container{position:relative;flex:1;background:var(--dark-bg);border:1px solid var(--border-color);border-radius:12px;overflow:hidden;display:flex;align-items:center;justify-content:center}#video-element,#upload-video{width:100%;height:100%;object-fit:contain;display:none}#video-element.mirror{transform:scaleX(-1)}#detection-canvas{position:absolute;top:0;left:0;width:100%;height:100%;pointer-events:none}#detection-canvas.mirror{transform:scaleX(-1)}.video-placeholder{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:15px;color:var(--text-muted)}.video-placeholder i{font-size:60px;opacity:0.5}.video-placeholder p{font-size:14px}.controls{display:flex;gap:10px;flex-wrap:wrap;flex-shrink:0}.control-btn{display:flex;align-items:center;gap:8px;padding:12px 20px;background:var(--medium-bg);border:1px solid var(--border-color);color:var(--text-color);font-size:13px;font-weight:500;border-radius:8px;cursor:pointer;transition:all 0.3s ease}.control-btn:hover{background:var(--light-bg);border-color:var(--accent-color)}.control-btn.active{background:var(--accent-color);border-color:var(--accent-color)}.control-btn:disabled{opacity:0.5;cursor:not-allowed}.control-btn i{font-size:16px}#file-input{display:none}.toggle-controls{display:flex;gap:15px;padding:10px 0}.toggle-item{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--text-muted)}.toggle-item input[type="checkbox"]{width:16px;height:16px;accent-color:var(--accent-color)}.toggle-item.pose-toggle input[type="checkbox"]:checked{accent-color:var(--pose-color)}.toggle-item.face-toggle input[type="checkbox"]:checked{accent-color:var(--face-color)}.stats-panel{width:380px;min-width:380px;max-width:380px;background:var(--dark-bg);border-left:1px solid var(--border-color);display:flex;flex-direction:column;overflow:hidden}.stats-header{padding:20px;border-bottom:1px solid var(--border-color);flex-shrink:0}.stats-title{font-size:11px;color:var(--accent-color);text-transform:uppercase;letter-spacing:2px;margin-bottom:5px}.stats-subtitle{font-size:18px;font-weight:600}.stats-content{flex:1;overflow-y:auto;overflow-x:hidden;padding:20px;scrollbar-gutter:stable;contain:layout style}.summary-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:25px}.summary-card{background:var(--medium-bg);border:1px solid var(--border-color);border-radius:10px;padding:15px;text-align:center;contain:layout style paint}.summary-card.full-width{grid-column:span 2}.summary-icon{font-size:24px;margin-bottom:8px}.summary-icon.pose{color:var(--pose-color)}.summary-icon.face{color:var(--face-color)}.summary-icon.activity{color:var(--warning-color)}.summary-icon.info{color:var(--info-color)}.summary-value{font-size:28px;font-weight:700;margin-bottom:4px;min-width:40px;display:inline-block}.summary-label{font-size:11px;color:var(--text-muted);text-transform:uppercase;letter-spacing:1px}.activity-card{background:var(--medium-bg);border:1px solid var(--border-color);border-radius:10px;padding:20px;margin-bottom:20px}.activity-title{font-size:11px;color:var(--text-muted);text-transform:uppercase;letter-spacing:1px;margin-bottom:10px}.activity-value{font-size:24px;font-weight:700;color:var(--warning-color);transition:color 0.3s ease}.activity-value.sleep-warning{color:#fff;font-weight:800}.activity-card.sleep-alert{background:var(--danger-color);border-color:var(--danger-color);animation:panic-pulse 0.5s ease-in-out infinite}.activity-card.sleep-alert .activity-title{color:rgba(255,255,255,0.9)}.activity-card.sleep-alert .activity-confidence{color:rgba(255,255,255,0.8)}@keyframes panic-pulse{0%,100%{background:var(--danger-color);transform:scale(1);box-shadow:0 0 0 0 rgba(239,68,68,0.7)}50%{background:#dc2626;transform:scale(1.02);box-shadow:0 0 20px 5px rgba(239,68,68,0.5)}}.activity-confidence{font-size:12px;color:var(--text-muted);margin-top:5px}.face-activity-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:20px}.face-activity-item{background:var(--medium-bg);border:1px solid var(--border-color);border-radius:8px;padding:12px;text-align:center;transition:all 0.2s ease}.face-activity-item.active{border-color:var(--face-color);background:rgba(59,130,246,0.1)}.face-activity-item i{font-size:20px;margin-bottom:6px;color:var(--text-muted)}.face-activity-item.active i{color:var(--face-color)}.face-activity-item .label{font-size:10px;color:var(--text-muted);text-transform:uppercase;letter-spacing:0.5px}.face-activity-item.active .label{color:var(--face-color)}.section-title{font-size:12px;color:var(--text-muted);text-transform:uppercase;letter-spacing:1px;margin-bottom:12px}.keypoints-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-bottom:20px}.keypoint-item{display:flex;align-items:center;justify-content:space-between;padding:8px 12px;background:var(--medium-bg);border:1px solid var(--border-color);border-radius:6px;font-size:11px}.keypoint-name{color:var(--text-muted)}.keypoint-score{font-weight:600;color:var(--pose-color)}.keypoint-score.low{color:var(--danger-color)}.face-info{padding:15px;background:var(--medium-bg);border:1px solid var(--border-color);border-radius:8px;margin-bottom:20px}.face-info-row{display:flex;justify-content:space-between;padding:8px 0;border-bottom:1px solid var(--border-color)}.face-info-row:last-child{border-bottom:none}.face-info-label{font-size:12px;color:var(--text-muted)}.face-info-value{font-size:12px;font-weight:600;color:var(--face-color)}.fps-display{position:absolute;top:15px;left:15px;background:rgba(0,0,0,0.7);padding:8px 12px;border-radius:6px;font-size:12px;font-family:monospace;z-index:10}.fps-value{color:var(--success-color);font-weight:600}.status-indicator{display:flex;align-items:center;gap:8px;padding:10px 15px;background:var(--medium-bg);border-radius:8px;margin-bottom:20px}.status-dot{width:10px;height:10px;border-radius:50%;background:var(--text-muted);flex-shrink:0}.status-dot.active{background:var(--success-color);animation:blink 1s infinite}@keyframes blink{0%,100%{opacity:1}50%{opacity:0.5}}.status-text{font-size:12px;color:var(--text-muted)}.model-status{padding:15px;background:var(--medium-bg);border:1px solid var(--border-color);border-radius:8px;margin-bottom:20px}.model-status-title{font-size:11px;color:var(--text-muted);text-transform:uppercase;letter-spacing:1px;margin-bottom:8px}.model-status-value{font-size:13px;color:var(--warning-color)}.model-status-value.loaded{color:var(--success-color)}.model-status-value.error{color:var(--danger-color)}.model-status-detail{font-size:11px;color:var(--text-muted);margin-top:5px}.detection-legend{display:flex;gap:15px;margin-bottom:20px}.legend-item{display:flex;align-items:center;gap:6px;font-size:11px;color:var(--text-muted)}.legend-dot{width:10px;height:10px;border-radius:50%}.legend-dot.pose{background:var(--pose-color)}.legend-dot.face{background:var(--face-color)}.mobile-activity-status{display:none}.mobile-activity-row{display:flex;align-items:center;gap:12px;padding:10px 12px;background:var(--dark-bg);border-radius:10px;border:1px solid var(--border-color)}.mobile-body-activity{display:flex;align-items:center;gap:8px;padding-right:12px;border-right:1px solid var(--border-color);min-width:90px}.mobile-activity-icon{width:32px;height:32px;display:flex;align-items:center;justify-content:center;background:rgba(34,197,94,0.15);border-radius:8px;color:var(--pose-color);font-size:16px}.mobile-activity-info{display:flex;flex-direction:column}.mobile-activity-label{font-size:9px;color:var(--text-muted);text-transform:uppercase;letter-spacing:0.5px}.mobile-activity-value{font-size:11px;font-weight:600;color:var(--text-color);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:60px}.mobile-activity-value.sleep-warning{color:#ef4444;animation:pulse 1s ease-in-out infinite}.mobile-face-grid{display:flex;gap:6px;flex:1;justify-content:flex-end}.mobile-face-item{width:28px;height:28px;display:flex;align-items:center;justify-content:center;background:#1a1a1a;border-radius:6px;border:1px solid #333;color:#555;font-size:12px;transition:all 0.2s ease}.mobile-face-item.active{background:#22c55e;border-color:#22c55e;color:#000}@media (max-width:900px){.main-container{flex-direction:column;height:auto;min-height:calc(100vh - 61px);overflow-y:auto}.stats-panel{width:100%;min-width:100%;max-width:100%;border-left:none;border-top:1px solid var(--border-color)}.video-panel{min-height:50vh;padding:15px}.video-container{min-height:300px}.stats-content{max-height:none;padding:15px}.keypoints-grid{grid-template-columns:1fr}.summary-grid{grid-template-columns:repeat(2,1fr);gap:10px}.face-activity-grid{grid-template-columns:repeat(3,1fr);gap:8px}}@media (max-width:600px){.mobile-activity-status{display:block}.video-panel{min-height:auto;height:calc(100vh - 60px);max-height:calc(100vh - 60px);overflow:hidden;padding:8px;gap:8px}.video-container{flex:1;min-height:0;border-radius:8px}.stats-panel{display:none}.header{flex-direction:column;gap:12px;padding:12px 15px}.header-left{width:100%;justify-content:center;gap:12px}.header-logo{height:24px}.header-title{font-size:14px}.back-btn{padding:6px 12px;font-size:12px}.fps-display{top:8px;left:8px;padding:5px 8px;font-size:10px}.controls{justify-content:center;gap:8px}.control-btn{flex:1;justify-content:center;min-width:0;padding:10px 12px;font-size:12px;gap:6px}.control-btn span{display:none}.control-btn i{font-size:18px}.toggle-controls{flex-direction:row;justify-content:center;gap:15px;flex-wrap:wrap}.toggle-item{font-size:11px}.stats-header{padding:15px}.stats-title{font-size:10px}.stats-subtitle{font-size:16px}.stats-content{padding:12px}.summary-grid{grid-template-columns:repeat(2,1fr);gap:8px;margin-bottom:15px}.summary-card{padding:12px 8px;border-radius:8px}.summary-icon{font-size:20px;margin-bottom:6px}.summary-value{font-size:22px}.summary-label{font-size:9px}.activity-card{padding:15px;margin-bottom:15px}.activity-value{font-size:20px}.face-activity-grid{grid-template-columns:repeat(3,1fr);gap:6px;margin-bottom:15px}.face-activity-item{padding:10px 6px}.face-activity-item i{font-size:16px;margin-bottom:4px}.face-activity-item .label{font-size:8px}.section-title{font-size:11px;margin-bottom:10px}.keypoints-grid{gap:6px}.keypoint-item{padding:6px 10px;font-size:10px}.face-info{padding:12px}.face-info-row{padding:6px 0}.face-info-label,.face-info-value{font-size:11px}.status-indicator{padding:8px 12px;margin-bottom:15px}.status-text{font-size:11px}.model-status{padding:12px;margin-bottom:15px}.detection-legend{gap:12px;margin-bottom:15px}.legend-item{font-size:10px}}@media (max-width:380px){.face-activity-grid{grid-template-columns:repeat(2,1fr)}.summary-value{font-size:18px}.header-title{font-size:12px}}