body{background:#0f1115;color:#eaf0ff;font-family:system-ui,Segoe UI,Roboto,Pretendard,Apple SD Gothic Neo,sans-serif;margin:0}
.wrap{max-width:1000px;margin:24px auto;padding:0 16px;text-align:center}
.panel{background:#171a21;border:1px solid #2a2f3a;border-radius:16px;padding:16px}
.controls{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;margin-bottom:10px}
button,select{background:#11141a;color:#eaf0ff;border:1px solid #2a2f3a;border-radius:10px;padding:8px 10px}
canvas{background:linear-gradient(180deg,#232a36,#1e2531);border-radius:12px;width:100%;max-width:900px;display:block;margin:12px auto}
#status{font-weight:700;margin-top:6px}
#timer{margin-top:6px;font-weight:700;letter-spacing:.5px;color:#ffb020}
#thinking{color:#4f8cff;font-style:italic;font-weight:bold;margin-top:4px}