:root{--bg: #0e1116;--panel: #171c24;--line: #283242;--ink: #eef3fa;--dim: #8fa0b5;--accent: #4a8cc0;--ok: #5fcf8e;--bad: #e06a52}*{box-sizing:border-box}html,body{margin:0;height:100%}body{background:radial-gradient(1000px 600px at 50% -10%,#15202c,var(--bg));color:var(--ink);font-family:system-ui,-apple-system,Segoe UI,sans-serif;display:flex;justify-content:center;-webkit-user-select:none;user-select:none}#app{width:100%;max-width:640px;padding:12px 12px 28px}header{text-align:center;margin-bottom:4px}h1{margin:0;font-size:24px;letter-spacing:2px;font-weight:800;color:var(--accent)}.sub{margin:2px 0 0;color:var(--dim);font-size:12px}.bar{display:flex;gap:8px;justify-content:center;flex-wrap:wrap;align-items:center;margin:9px 0}.seg{display:inline-flex;background:var(--panel);border:1px solid var(--line);border-radius:999px;overflow:hidden}.seg button{background:none;border:none;color:var(--dim);padding:6px 13px;font:600 13px system-ui;cursor:pointer}.seg button.active{background:var(--accent);color:#07121b}.btn{background:var(--panel);border:1px solid var(--line);color:var(--ink);padding:7px 14px;border-radius:999px;font:700 13px system-ui;cursor:pointer}.btn:hover{border-color:var(--accent)}.question{text-align:center;margin:8px auto;max-width:560px;font-size:16px;font-weight:700;background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:12px 16px}.question .label{color:var(--accent)}.statbar{display:flex;justify-content:space-between;max-width:560px;margin:0 auto 6px;color:var(--dim);font-size:13px;font-weight:600}.statbar .time.low{color:var(--bad)}.status{text-align:center;min-height:20px;margin:6px 0;color:var(--dim);font-size:13px;font-weight:600}.status.ok{color:var(--ok)}.status.bad{color:var(--bad)}.stage{position:relative;display:flex;justify-content:center}canvas{width:100%;max-width:600px;height:auto;display:block;border-radius:10px;background:#0a0d12;box-shadow:0 14px 36px #0000008c;touch-action:none;cursor:pointer}.overlay{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:#080b10c7;border-radius:10px;backdrop-filter:blur(3px)}.overlay.hidden{display:none}.card{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:22px 26px;text-align:center;max-width:380px}.card h2{margin:0 0 6px;font-size:24px;color:var(--accent)}.card p{margin:6px 0;color:var(--dim);font-size:14px}.card .big{font-size:30px;font-weight:800;color:var(--ink)}.card .row{display:flex;gap:8px;justify-content:center;margin-top:14px;flex-wrap:wrap}.hint{text-align:center;color:var(--dim);font-size:12px;margin-top:10px}