body{background:#f4f6fb}.trainer{max-width:420px;margin:60px auto;font-family:system-ui;text-align:center}.selectors{display:flex;gap:8px;justify-content:center;margin-bottom:10px}.progress{height:6px;background:#ddd;border-radius:3px;margin-bottom:20px}.bar{height:100%;background:#6366f1}.card{background:#fff;padding:32px;border-radius:18px;box-shadow:0 20px 40px rgba(0,0,0,.1)}.kana{font-size:120px;margin-bottom:20px;cursor:pointer}input{width:100%;padding:12px;font-size:18px;border-radius:8px;border:1px solid #ddd;text-align:center}.feedback{margin-top:10px;font-weight:600}.answer{margin-top:8px;color:#666}.buttons{margin-top:16px}.buttons button{margin:4px;padding:8px 16px;border-radius:8px;border:none;background:#eee;cursor:pointer}.stats{margin-top:16px;display:flex;justify-content:center;gap:14px;color:#888}