:root{--bg: #0b1020;--panel: #121a31;--panel-2: #0e1528;--ink: #e7ecf6;--muted: #8a98b8;--accent: #4cc6c0;--accent-2: #ffb454;--danger: #ff5d6c;--line: #24304f}*{box-sizing:border-box}html,body{margin:0;height:100%}body{background:radial-gradient(1200px 800px at 50% -10%,#16204a 0%,var(--bg) 55%);color:var(--ink);font:15px/1.5 system-ui,-apple-system,Segoe UI,Roboto,sans-serif;-webkit-user-select:none;user-select:none;touch-action:none}#app{min-height:100%;display:flex;align-items:center;justify-content:center;padding:16px}.screen{width:100%;max-width:480px}.home{text-align:center}.logo{font-size:38px;margin:8px 0 2px;letter-spacing:.5px;background:linear-gradient(90deg,var(--accent),var(--accent-2));-webkit-background-clip:text;background-clip:text;color:transparent}.tagline{color:var(--muted);margin:0 auto 18px;max-width:380px}.tagline em{color:var(--accent);font-style:normal;font-weight:600}.menu{display:flex;flex-direction:column;gap:10px;margin:0 auto;max-width:320px}.btn{appearance:none;border:1px solid var(--line);background:var(--panel);color:var(--ink);border-radius:12px;padding:12px 14px;cursor:pointer;display:flex;flex-direction:column;align-items:stretch;gap:2px;text-align:left;transition:transform .06s ease,border-color .15s ease,background .15s ease}.btn:hover{border-color:var(--accent)}.btn:active{transform:translateY(1px)}.btn.primary{background:linear-gradient(180deg,#18324a,#122843);border-color:#2a557a}.btn-title{font-weight:700;font-size:16px}.btn-sub{color:var(--muted);font-size:12px}.levelgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(90px,1fr));gap:8px;margin-top:6px}.levelcard{border:1px solid var(--line);background:var(--panel-2);color:var(--ink);border-radius:10px;padding:10px 8px;cursor:pointer;text-align:center}.levelcard:hover{border-color:var(--accent)}.levelcard .n{font-weight:700}.levelcard .s{color:var(--muted);font-size:11px}.section-h{color:var(--muted);font-size:12px;text-transform:uppercase;letter-spacing:1px;margin:18px 0 6px}.game{display:flex;flex-direction:column;gap:10px;align-items:center}.hud{width:100%;max-width:480px;display:flex;align-items:center;justify-content:space-between;gap:8px}.hud .pill{background:var(--panel);border:1px solid var(--line);border-radius:999px;padding:6px 12px;font-weight:600}.hud .pill b{color:var(--accent-2)}.hud .name{color:var(--muted);font-size:13px}.linkbtn{background:none;border:none;color:var(--muted);cursor:pointer;padding:6px;font-size:13px}.linkbtn:hover{color:var(--accent)}.boardwrap{position:relative}canvas{display:block;border-radius:14px;border:1px solid var(--line);background:var(--panel-2);box-shadow:0 10px 40px #0006}.overlay{position:absolute;inset:0;display:flex;flex-direction:column;gap:8px;align-items:center;justify-content:center;border-radius:14px;background:#070b18d1;backdrop-filter:blur(2px);text-align:center;padding:16px}.overlay h2{margin:0;font-size:28px}.overlay h2.win{color:var(--accent)}.overlay h2.lose{color:var(--danger)}.overlay p{color:var(--muted);margin:0}.overlay .row{display:flex;gap:8px;margin-top:8px}.overlay .btn{flex-direction:row;align-items:center;justify-content:center;padding:10px 16px}.help{color:var(--muted);font-size:12px;text-align:center;max-width:460px}.dpad{display:grid;grid-template-columns:repeat(3,52px);grid-template-rows:repeat(2,52px);gap:6px;margin-top:4px}.dpad button{border:1px solid var(--line);background:var(--panel);color:var(--ink);border-radius:10px;font-size:20px;cursor:pointer}.dpad button:active{background:#1a2647}.dpad .u{grid-column:2;grid-row:1}.dpad .l{grid-column:1;grid-row:2}.dpad .d{grid-column:2;grid-row:2}.dpad .r{grid-column:3;grid-row:2}.toast{position:fixed;bottom:24px;left:50%;transform:translate(-50%);background:var(--panel);border:1px solid var(--accent);padding:8px 14px;border-radius:10px}