*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}body{background:#0d0d0d;color:#f0f0f0;font-family:system-ui,-apple-system,sans-serif;min-height:100vh}.screen{min-height:100vh;padding:20px}.card{background:#1a1a1a;border-radius:12px;padding:20px;border:1px solid #2a2a2a;margin-bottom:16px}.btn-primary{background:#4acda8;color:#000;border-radius:8px;padding:12px 24px;font-weight:500;cursor:pointer;border:none;font-size:16px;min-height:44px;min-width:44px;transition:opacity .2s}.btn-primary:hover{opacity:.9}.btn-primary.btn-saved{background:#2a2a2a;color:#4acda8}.btn-secondary{background:transparent;color:#f0f0f0;border:1px solid #f0f0f0;border-radius:8px;padding:12px 24px;font-weight:500;cursor:pointer;font-size:16px;min-height:44px;min-width:44px;margin-top:12px}.btn-secondary:hover{background:#ffffff1a}.top-bar{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px}.top-bar h1{font-size:28px;font-weight:700;color:#4acda8}.lang-switcher{display:flex;align-items:center;gap:4px}.lang-btn{background:transparent;color:#888;border:none;cursor:pointer;font-size:14px;padding:6px 10px;border-radius:4px;min-height:44px;min-width:44px;display:flex;align-items:center;justify-content:center}.lang-btn.active{color:#4acda8;font-weight:700}.lang-sep{color:#444}.home-screen{max-width:600px;margin:0 auto}.cards-container{margin-bottom:24px}.card h2{font-size:22px;margin-bottom:12px;color:#4acda8}.exercise-list{list-style:none;margin-bottom:16px}.exercise-list li{padding:4px 0;color:#ccc;font-size:15px}.history-link{display:block;text-align:center;color:#888;text-decoration:none;font-size:14px;padding:12px}.history-link:hover{color:#4acda8}.workout-screen{padding:0;display:flex;flex-direction:column;height:100vh}.workout-top-bar{display:flex;justify-content:space-between;align-items:center;padding:12px 16px;background:#000c;z-index:5}.exercise-label{color:#fff;font-size:18px}.exercise-label strong{color:#4acda8}.set-info{color:#888;font-size:14px;margin-left:8px}.camera-container{position:relative;flex:1;overflow:hidden;background:#000}.camera-video{display:none}.camera-canvas{width:100%;height:100%;object-fit:cover}.feedback-banner{position:absolute;top:20px;left:50%;transform:translate(-50%);min-width:200px;text-align:center;border-radius:8px;padding:20px 40px;z-index:10;font-size:72px;font-weight:900}.banner-error{background:#c62828;color:#fff}.banner-rep{background:#0e5c3a;color:#fff}.banner-info{background:#333;color:#fff}.workout-bottom-bar{display:flex;align-items:center;justify-content:space-between;padding:16px;background:#000c;z-index:5}.rep-counter{display:flex;align-items:baseline}.rep-count{font-size:72px;font-weight:700;color:#4acda8;line-height:1}.rep-target{font-size:28px;color:#666;margin-left:4px}.rep-count.pulse{animation:pulse .3s ease-out}@keyframes pulse{0%{transform:scale(1)}50%{transform:scale(1.2)}to{transform:scale(1)}}.timer-display{font-size:48px;font-weight:700;color:#4acda8}.workout-next-btn{font-size:16px}.summary-screen{max-width:600px;margin:0 auto}.summary-duration{font-size:20px;color:#888;margin-bottom:20px}.summary-results{margin-bottom:24px}.summary-card h3{color:#4acda8;margin-bottom:8px}.summary-card p{color:#ccc;font-size:15px}.summary-error{color:#e24b4a!important;font-size:13px!important;margin-top:4px}.session-score{text-align:center;margin-bottom:20px}.score-number{font-size:80px;font-weight:800;line-height:1}.score-label{font-size:14px;color:#888;margin-top:4px;text-transform:uppercase;letter-spacing:1px}.summary-card-row{display:flex;justify-content:space-between;align-items:center}.exercise-score{font-size:24px;font-weight:700;border:2px solid;border-radius:8px;padding:2px 10px;min-width:44px;text-align:center}.posture-instruction{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);background:#000000b3;color:#fff;font-size:80px;font-weight:900;padding:40px 60px;border-radius:16px;text-align:center;z-index:10;display:none}.muscle-recommendations{margin:20px 0}.muscle-section{background:#1a1a1a;border-radius:12px;padding:16px;margin-bottom:12px}.muscle-section.release{border-left:3px solid #FFA726}.muscle-section.strengthen{border-left:3px solid #4ACDA8}.muscle-section h3{font-size:15px;margin-bottom:12px;color:#fff}.muscle-icon{margin-right:6px}.muscle-item{display:flex;justify-content:space-between;align-items:center;padding:6px 0;border-bottom:1px solid #2a2a2a}.muscle-item:last-child{border-bottom:none}.muscle-name{font-size:14px;color:#ccc}.muscle-priority{font-size:12px;font-weight:700;color:#e24b4a;background:#e24b4a26;padding:2px 8px;border-radius:10px}.posture-btn{width:100%;margin-bottom:16px;border-color:#7c4dff;color:#7c4dff}.btn-ai{background:#7c4dff;margin-bottom:12px;width:100%}.btn-ai:hover{opacity:.9}.ai-result{display:none;background:#1a1a2e;border:1px solid #7C4DFF;border-radius:12px;padding:16px;margin-bottom:16px;color:#e0e0e0;font-size:15px;line-height:1.5;white-space:pre-wrap}
