:root{--bg-gradient: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);--panel-bg: rgba(255, 255, 255, .05);--panel-border: rgba(255, 255, 255, .1);--text-primary: #f8fafc;--text-secondary: #94a3b8;--accent-color: #3b82f6;--accent-gradient: linear-gradient(135deg, #3b82f6, #8b5cf6);--success-color: #10b981;--border-radius: 16px}*{box-sizing:border-box;margin:0;padding:0}body{font-family:Inter,sans-serif;background:var(--bg-gradient);color:var(--text-primary);min-height:100vh;display:flex;justify-content:center;align-items:center}.app-container{width:90%;max-width:1200px;margin:2rem auto;display:flex;flex-direction:column;gap:2rem}.header{text-align:center}.header h1{font-size:3rem;font-weight:800;margin-bottom:1.5rem;background:var(--accent-gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;animation:slideInDown .8s ease-out}.pedagogy-card{background:var(--panel-bg);border:1px solid var(--panel-border);border-radius:var(--border-radius);padding:1.5rem;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);box-shadow:0 4px 30px #0000001a;max-width:800px;margin:0 auto;text-align:left;animation:fadeIn 1s ease-out}.pedagogy-card h2{font-size:1.5rem;margin-bottom:.75rem;color:#e2e8f0}.pedagogy-card p{color:var(--text-secondary);line-height:1.6}.main-content{display:flex;flex-direction:column;gap:2rem}@media (min-width: 768px){.main-content{flex-direction:row;align-items:flex-start}}.column{flex:1;display:flex;flex-direction:column;gap:2rem}.panel{background:var(--panel-bg);border:1px solid var(--panel-border);border-radius:var(--border-radius);padding:1.5rem;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);box-shadow:0 4px 30px #0000001a;animation:slideInUp .8s ease-out}.panel h2{font-size:1.5rem;margin-bottom:1rem;color:#e2e8f0}.webcam-wrapper{width:100%;aspect-ratio:4/3;background-color:#000;border-radius:calc(var(--border-radius) - 4px);overflow:hidden;position:relative;display:flex;justify-content:center;align-items:center}.webcam-wrapper canvas{width:100%;height:100%;object-fit:cover}.loading{position:absolute;color:var(--text-secondary);font-weight:600;animation:pulse 1.5s infinite}.bars-container{display:flex;flex-direction:column;gap:1rem}.bar-row{display:flex;flex-direction:column;gap:.5rem}.bar-label-container{display:flex;justify-content:space-between;font-size:1.5rem;font-weight:700;margin-bottom:.25rem}.bar-track{width:100%;height:24px;background:#ffffff1a;border-radius:12px;overflow:hidden}.bar-fill{height:100%;background:var(--accent-gradient);width:0%;transition:width .3s ease,background .3s ease;border-radius:12px}.challenge-panel{text-align:center;border:2px solid rgba(139,92,246,.3);position:relative;overflow:hidden}.challenge-panel p{color:var(--text-secondary);margin-bottom:1rem}.challenge-target{font-size:1.25rem;margin-bottom:1.5rem}.highlight{font-weight:800;color:#fff;background:var(--accent-gradient);padding:.25rem .75rem;border-radius:8px;margin-left:.5rem;display:inline-block}.btn{background:var(--accent-gradient);color:#fff;border:none;padding:.75rem 1.5rem;border-radius:8px;font-size:1rem;font-weight:600;cursor:pointer;transition:transform .2s ease,box-shadow .2s ease;font-family:Inter,sans-serif}.btn:hover{transform:translateY(-2px);box-shadow:0 4px 15px #3b82f666}.btn:active{transform:translateY(0)}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideInDown{0%{opacity:0;transform:translateY(-20px)}to{opacity:1;transform:translateY(0)}}@keyframes slideInUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@keyframes pulse{0%{opacity:.6}50%{opacity:1}to{opacity:.6}}.samples-preview{margin-top:1rem;padding-top:1rem;border-top:1px solid var(--panel-border);text-align:center}.sample-image{margin-top:1rem;max-width:150px;border-radius:var(--border-radius);box-shadow:0 4px 15px #0003}.camera-controls{margin-bottom:1rem;text-align:center}.dropdown{padding:.5rem;border-radius:8px;background:#00000080;color:#fff;border:1px solid var(--panel-border);font-family:Inter,sans-serif;width:100%;max-width:300px}.training-classes{margin-top:2rem;border-top:1px solid var(--panel-border);padding-top:1.5rem;text-align:center}.training-desc{font-size:.95rem;margin-bottom:1.5rem}.classes-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(120px,1fr));gap:1rem}.class-card{display:flex;flex-direction:column;align-items:center;gap:.5rem;background:#0003;padding:.5rem;border-radius:var(--border-radius);border:1px solid rgba(255,255,255,.05)}.class-card img{width:100%;max-width:150px;aspect-ratio:1;object-fit:cover;border-radius:calc(var(--border-radius) - 4px);box-shadow:0 4px 10px #0000004d}.class-card span{font-weight:600;font-size:.9rem;color:#e2e8f0}