:root{--bg-primary: #0a0a0f;--bg-secondary: #12121a;--bg-card: rgba(255, 255, 255, .04);--bg-card-hover: rgba(255, 255, 255, .07);--border-color: rgba(255, 255, 255, .08);--text-primary: #f0f0f5;--text-secondary: #8888a0;--text-muted: #55556a;--accent: #6c5ce7;--accent-glow: rgba(108, 92, 231, .3);--success: #00e676;--success-glow: rgba(0, 230, 118, .2);--warning: #ffab40;--warning-glow: rgba(255, 171, 64, .2);--danger: #ff5252;--danger-glow: rgba(255, 82, 82, .2);--font: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;--radius: 12px;--radius-sm: 8px;--radius-lg: 16px}*{margin:0;padding:0;box-sizing:border-box}body{font-family:var(--font);background:var(--bg-primary);color:var(--text-primary);overflow:hidden;height:100vh;width:100vw}.screen{display:none;width:100vw;height:100vh}.screen.active{display:flex}#setup-screen{align-items:center;justify-content:center;background:radial-gradient(ellipse at 50% 30%,rgba(108,92,231,.08) 0%,transparent 60%),var(--bg-primary)}.setup-container{text-align:center;max-width:700px;padding:40px;animation:fadeInUp .6s ease-out}@keyframes fadeInUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}.logo-icon{font-size:56px;margin-bottom:12px;animation:pulse 2s ease-in-out infinite}@keyframes pulse{0%,to{transform:scale(1)}50%{transform:scale(1.08)}}.logo-title{font-size:48px;font-weight:800;letter-spacing:-1.5px;margin-bottom:8px}.accent{color:var(--accent)}.logo-subtitle{color:var(--text-secondary);font-size:16px;font-weight:400;margin-bottom:40px}.features-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-bottom:36px}.feature-card{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius);padding:24px 16px;transition:all .3s ease;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.feature-card:hover{background:var(--bg-card-hover);border-color:var(--accent);transform:translateY(-2px);box-shadow:0 8px 30px var(--accent-glow)}.feature-icon{font-size:28px;margin-bottom:10px}.feature-card h3{font-size:14px;font-weight:600;margin-bottom:6px}.feature-card p{font-size:12px;color:var(--text-secondary);line-height:1.4}.exercise-select{margin-bottom:28px}.exercise-select label{display:block;font-size:13px;color:var(--text-secondary);margin-bottom:10px;text-transform:uppercase;letter-spacing:1px;font-weight:500}.exercise-buttons{display:flex;gap:12px;justify-content:center}.exercise-btn{background:var(--bg-card);border:2px solid var(--border-color);border-radius:var(--radius);padding:14px 28px;color:var(--text-primary);font-family:var(--font);font-size:15px;font-weight:500;cursor:pointer;transition:all .25s ease;display:flex;align-items:center;gap:8px}.exercise-btn:hover{border-color:var(--accent)}.exercise-btn.active{border-color:var(--accent);background:#6c5ce71f;box-shadow:0 0 20px var(--accent-glow)}.exercise-emoji{font-size:20px}.start-button{background:linear-gradient(135deg,var(--accent),#a855f7);border:none;border-radius:var(--radius);padding:16px 48px;color:#fff;font-family:var(--font);font-size:17px;font-weight:600;cursor:pointer;transition:all .3s ease;display:inline-flex;align-items:center;gap:10px}.start-button:hover{transform:translateY(-2px);box-shadow:0 8px 30px var(--accent-glow)}.start-button:active{transform:translateY(0)}.btn-icon{font-size:20px}.camera-note{margin-top:14px;font-size:12px;color:var(--text-muted)}.coach-layout{display:flex;width:100vw;height:100vh}.video-area{flex:1;background:#000;position:relative;display:flex;align-items:center;justify-content:center}.video-container{position:relative;width:100%;height:100%}#webcam{position:absolute;top:0;left:0;width:100%;height:100%;object-fit:cover;transform:scaleX(-1)}#pose-canvas{position:absolute;top:0;left:0;width:100%;height:100%;transform:scaleX(-1)}.rep-overlay{position:absolute;top:20px;left:20px;background:#000000a6;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:var(--radius);padding:14px 22px;text-align:center;z-index:10;border:1px solid rgba(255,255,255,.1)}.rep-count{font-size:42px;font-weight:800;line-height:1;color:var(--accent)}.rep-label{font-size:11px;color:var(--text-secondary);letter-spacing:2px;font-weight:600;margin-top:4px}.score-overlay{position:absolute;top:20px;right:20px;background:#000000a6;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:var(--radius);padding:14px 22px;text-align:center;z-index:10;border:1px solid rgba(255,255,255,.1);transform:scaleX(-1)}.score-value{font-size:42px;font-weight:800;line-height:1;color:var(--success);transition:color .3s ease}.score-value.warning{color:var(--warning)}.score-value.danger{color:var(--danger)}.score-label{font-size:11px;color:var(--text-secondary);letter-spacing:2px;font-weight:600;margin-top:4px}.exercise-label{position:absolute;bottom:20px;left:20px;background:#6c5ce7cc;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:var(--radius-sm);padding:8px 18px;font-size:13px;font-weight:700;letter-spacing:2px;z-index:10}.voice-indicator{position:absolute;bottom:20px;right:20px;background:#000000b3;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:20px;padding:8px 16px;font-size:12px;color:var(--accent);display:flex;align-items:center;gap:8px;z-index:10;transform:scaleX(-1);transition:opacity .3s ease}.voice-indicator.hidden{opacity:0;pointer-events:none}.voice-wave{width:16px;height:16px;border-radius:50%;background:var(--accent);animation:voicePulse .8s ease-in-out infinite}@keyframes voicePulse{0%,to{transform:scale(1);opacity:1}50%{transform:scale(1.3);opacity:.6}}.dashboard{width:380px;min-width:380px;height:100vh;background:var(--bg-secondary);border-left:1px solid var(--border-color);overflow-y:auto;padding:20px;display:flex;flex-direction:column;gap:16px}.dashboard::-webkit-scrollbar{width:4px}.dashboard::-webkit-scrollbar-thumb{background:var(--border-color);border-radius:2px}.dashboard-header{display:flex;justify-content:space-between;align-items:center;padding-bottom:12px;border-bottom:1px solid var(--border-color)}.dashboard-header h2{font-size:20px;font-weight:700}.stop-button{background:#ff525226;border:1px solid rgba(255,82,82,.3);border-radius:var(--radius-sm);padding:6px 14px;color:var(--danger);font-family:var(--font);font-size:12px;font-weight:600;cursor:pointer;transition:all .2s ease}.stop-button:hover{background:#ff525240}.panel{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius);padding:16px;transition:border-color .3s ease}.panel.highlight{border-color:var(--danger);box-shadow:0 0 15px var(--danger-glow)}.panel-title{font-size:13px;font-weight:600;color:var(--text-secondary);margin-bottom:12px;display:flex;align-items:center;gap:6px;text-transform:uppercase;letter-spacing:.5px}.panel-icon{font-size:15px}.alerts-list{display:flex;flex-direction:column;gap:8px;max-height:120px;overflow-y:auto}.alert-item{padding:8px 12px;border-radius:var(--radius-sm);font-size:13px;font-weight:500;display:flex;align-items:center;gap:8px;animation:slideIn .3s ease-out}@keyframes slideIn{0%{opacity:0;transform:translate(-10px)}to{opacity:1;transform:translate(0)}}.alert-item.danger{background:#ff52521f;color:var(--danger);border:1px solid rgba(255,82,82,.2)}.alert-item.warning{background:#ffab401f;color:var(--warning);border:1px solid rgba(255,171,64,.2)}.alert-item.success{background:#00e6761f;color:var(--success);border:1px solid rgba(0,230,118,.2)}.alert-placeholder,.chain-placeholder{color:var(--text-muted);font-size:13px;font-style:italic}.kinetic-chain{display:flex;flex-direction:column;gap:8px}.chain-item{display:flex;flex-direction:column;gap:4px;padding:10px 12px;border-radius:var(--radius-sm);background:#ff525214;border-left:3px solid var(--danger);animation:slideIn .3s ease-out}.chain-symptom{font-size:13px;font-weight:600;color:var(--danger)}.chain-arrow{font-size:11px;color:var(--text-muted)}.chain-cause{font-size:12px;color:var(--warning);font-weight:500}.chain-fix{font-size:11px;color:var(--text-secondary);font-style:italic;margin-top:2px}.fatigue-chart{width:100%;height:120px;border-radius:var(--radius-sm);background:#0003}.fatigue-prediction{margin-top:8px;font-size:12px;color:var(--text-secondary)}.fatigue-prediction.danger{color:var(--danger);font-weight:600}.asymmetry-bars{display:flex;flex-direction:column;gap:10px}.asymmetry-row{display:flex;flex-direction:column;gap:4px}.asymmetry-label{font-size:12px;color:var(--text-secondary);display:flex;justify-content:space-between}.asymmetry-bar-track{height:8px;background:#ffffff0f;border-radius:4px;overflow:hidden;position:relative}.asymmetry-bar-center{position:absolute;left:50%;top:0;width:2px;height:100%;background:var(--text-muted)}.asymmetry-bar-fill{position:absolute;top:0;height:100%;border-radius:4px;transition:all .4s ease}.ai-summary{font-size:13px;line-height:1.6;color:var(--text-secondary)}.ai-summary strong{color:var(--text-primary)}.coach-status{position:absolute;bottom:60px;right:20px;background:#000000b3;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:20px;padding:6px 14px;font-size:11px;font-weight:500;color:var(--text-secondary);z-index:10;transform:scaleX(-1);transition:all .3s ease}.coach-status--connected{color:var(--success);border:1px solid rgba(0,230,118,.3)}.coach-status--connecting{color:var(--warning);border:1px solid rgba(255,171,64,.3);animation:pulse 1.5s ease-in-out infinite}.coach-status--disconnected{color:var(--text-muted);border:1px solid var(--border-color)}.coach-status--fallback{color:var(--warning);border:1px solid rgba(255,171,64,.3)}.dashboard-controls{display:flex;gap:8px;align-items:center}.mute-button{background:#6c5ce726;border:1px solid rgba(108,92,231,.3);border-radius:var(--radius-sm);padding:6px 12px;color:var(--accent);font-family:var(--font);font-size:12px;font-weight:600;cursor:pointer;transition:all .2s ease}.mute-button:hover{background:#6c5ce740}.mute-button.muted{background:#ff525226;border-color:#ff52524d;color:var(--danger)}.hidden{display:none!important}