:root{--bg: #1a1d29;--panel: #222636;--ink: #e8ecf5;--accent: #ffd24a;--good: #5fd97a;--bad: #ef5d6b;--muted: #8b93ab}*{box-sizing:border-box}html,body{margin:0;height:100%;background:var(--bg);color:var(--ink);font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;-webkit-user-select:none;user-select:none}#app{min-height:100%;display:flex;flex-direction:column;align-items:center;gap:12px;padding:12px}h1{margin:4px 0 0;font-size:22px;letter-spacing:2px;color:var(--accent)}.sub{margin:0;color:var(--muted);font-size:12px}.hud{display:flex;gap:16px;flex-wrap:wrap;justify-content:center;background:var(--panel);padding:8px 14px;border-radius:10px;font-size:14px;min-width:320px}.hud b{color:var(--accent)}canvas{background:#2b6e3f;border-radius:12px;box-shadow:0 8px 30px #00000073;touch-action:none;max-width:96vw;height:auto}.controls{display:flex;gap:8px;flex-wrap:wrap;justify-content:center}button{background:var(--panel);color:var(--ink);border:1px solid #38405a;border-radius:10px;padding:10px 16px;font-size:15px;cursor:pointer}button.primary{background:var(--accent);color:#1a1d29;font-weight:700;border:none}button:active{transform:translateY(1px)}.overlay{position:relative;text-align:center;background:var(--panel);padding:14px 18px;border-radius:12px;max-width:420px}.overlay h2{margin:0 0 6px;color:var(--accent)}.hint{color:var(--muted);font-size:12px;text-align:center;max-width:460px}