:root{--bg:#0d0d0d;--surface:#1a1a1a;--surface-hover:#262626;--accent:#b0ff2b;--text-main:#f0f0f0;--text-secondary:#a0a0a0;--radius:16px;color:var(--text-main);background-color:var(--bg);-webkit-font-smoothing:antialiased;font-family:Inter,system-ui,-apple-system,sans-serif;line-height:1.5}*{box-sizing:border-box;margin:0;padding:0}body{min-height:100vh;padding:0;padding-bottom:env(safe-area-inset-bottom);margin:0}#root{width:100%}.container{max-width:600px;margin:0 auto;padding:20px 20px 80px}.header{text-align:center;margin-bottom:24px}.header h1{background:linear-gradient(135deg,#fff,#888);-webkit-text-fill-color:transparent;-webkit-background-clip:text;margin-bottom:16px;font-size:28px;font-weight:800}.day-selector{flex-wrap:wrap;justify-content:center;gap:10px;margin-bottom:32px;display:flex}.day-btn{background:var(--surface);color:var(--text-main);cursor:pointer;border:1px solid #333;border-radius:30px;flex:1;min-width:100px;max-width:140px;padding:12px 24px;font-size:16px;font-weight:600;transition:all .3s}.day-btn.active{background:var(--accent);color:#000;border-color:var(--accent);box-shadow:0 0 15px #b0ff2b4d}.block-title{color:var(--accent);border-bottom:1px solid #333;align-items:center;gap:8px;margin-top:32px;margin-bottom:16px;padding-bottom:8px;font-size:22px;font-weight:700;display:flex}.exercise-card{background:var(--surface);border-radius:var(--radius);border:1px solid #2a2a2a;flex-direction:column;gap:12px;margin-bottom:16px;padding:16px;transition:transform .2s,opacity .3s,border-color .2s;display:flex}.exercise-card:hover{border-color:#444}.exercise-card.done{opacity:.5;border-color:#333;transform:scale(.98)}.ex-header{justify-content:space-between;align-items:flex-start;gap:12px;display:flex}.ex-info{flex:1}.ex-title{margin-bottom:4px;font-size:18px;font-weight:700}.ex-reps{color:var(--accent);background:#b0ff2b1a;border-radius:6px;padding:2px 8px;font-size:14px;font-weight:600;display:inline-block}.ex-desc{color:var(--text-secondary);background:#0003;border-radius:8px;margin-top:4px;padding:12px;font-size:14px}.ex-footer{justify-content:space-between;align-items:center;margin-top:8px;display:flex}.btn-yt{color:#ff4e4e;background:#ff00001a;border-radius:20px;align-items:center;gap:8px;padding:8px 16px;font-size:14px;font-weight:600;text-decoration:none;transition:background .2s,transform .2s;display:inline-flex}.btn-yt:hover{background:#f003;transform:scale(1.02)}.btn-yt svg{fill:currentColor;width:16px;height:16px}.checkbox-wrapper{cursor:pointer;-webkit-user-select:none;user-select:none;align-items:center;gap:8px;display:flex}.checkbox{appearance:none;cursor:pointer;background:var(--bg);border:2px solid #444;border-radius:8px;outline:none;width:28px;height:28px;transition:all .2s;position:relative}.checkbox:checked{background:var(--accent);border-color:var(--accent)}.checkbox:checked:after{content:"✓";color:#000;font-size:18px;font-weight:700;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}.checkbox-label{color:var(--text-secondary);font-size:14px;font-weight:600}.checkbox:checked+.checkbox-label{color:var(--accent)}.progress-bar{background:#333;border-radius:3px;width:100%;height:6px;margin-bottom:24px;overflow:hidden}.progress-fill{background:var(--accent);height:100%;transition:width .3s}.reset-btn{color:var(--text-secondary);cursor:pointer;background:0 0;border:1px solid #333;border-radius:20px;width:100%;margin-top:40px;padding:8px 16px;font-size:14px;transition:all .2s}.reset-btn:hover{color:#fff;background:#222}.ex-gif-container{background:#0000004d;border-radius:8px;width:100%;margin-top:8px;overflow:hidden}.ex-gif{width:100%;height:auto;display:block}