:root{font-family:Inter,system-ui,sans-serif;color:#e8eef7;background:#0b1220}body{margin:0}.wrap{width:min(520px,92vw);margin:3rem auto}.panel{background:#151e30;border:1px solid #2a3a55;border-radius:14px;padding:1.5rem}.score{font-size:3rem;font-weight:800;margin:.5rem 0 1rem}button{border:0;border-radius:10px;padding:.7rem 1rem;margin-right:.5rem;margin-bottom:.5rem;background:#3b82f6;color:#fff;font-weight:700;cursor:pointer}button.secondary{background:#22c55e;color:#052e16}button.ghost{background:#334155}.muted{color:#9db0cc}.back{color:#93c5fd}