*{box-sizing:border-box}body{margin:0;background:#0e2029;color:#eff9f5;font:16px system-ui,Segoe UI,sans-serif}.demo{background:#f5d696;color:#382a13;text-align:center;padding:9px 8px;font-size:11px;font-weight:800;letter-spacing:.5px}main{width:min(100%,440px);margin:auto;padding:20px}header{display:flex;justify-content:space-between;align-items:center;margin-bottom:30px}a{color:#b4d5ce;font-size:12px}.brand{font-size:22px;font-weight:800}.brand span{color:#2bd4a2}.eyebrow{font-size:11px;font-weight:800;letter-spacing:1.5px;color:#84cdbb}h1{font-size:37px;line-height:1.1;letter-spacing:-1px;margin:12px 0}h2{margin:0;font-size:27px}.intro{color:#b7cbd1;line-height:1.6;font-size:14px}.wallet{display:flex;justify-content:space-between;align-items:center;background:#19353d;padding:18px;border:1px solid #32515a;border-radius:16px;margin:24px 0 12px}.wallet small{display:block;color:#b5d1ce;font-size:12px}.wallet strong{font-size:34px}.wallet label{font-size:12px}select{display:block;margin-top:6px;padding:10px 18px;border-radius:8px;font:inherit;background:#edf9f3;color:#112c30;border:0;min-height:48px}.fine{font-size:11px;color:#9eb9c2;line-height:1.6}.game-list{display:grid;gap:12px;margin:25px 0}.game-card{display:grid;grid-template-columns:48px 1fr;gap:14px;text-align:left;background:#18303b;border:1px solid #36505b;border-radius:16px;padding:18px;color:inherit}.game-card b{font-size:18px}.game-card small{display:block;color:#adcad0;font-size:12px;margin-top:7px;line-height:1.4}.game-icon{font-size:30px}.game-card:hover{background:#24444d;border-color:#2bd4a2}.game-card:focus-visible,button:focus-visible,canvas:focus-visible{outline:3px solid #ffe0a0;outline-offset:3px}button{font:inherit;cursor:pointer;min-height:48px;border:0;border-radius:10px;background:#2bd4a2;color:#082e28;font-weight:750;padding:12px}button:disabled{opacity:.5;cursor:default}.round-heading{display:flex;align-items:center;justify-content:space-between}#time{font-size:24px;color:#f5d696;font-variant-numeric:tabular-nums}#instructions{font-size:13px;color:#b9cfd3;line-height:1.5;min-height:40px}.arena{position:relative;width:100%;max-width:360px;margin:auto;border-radius:18px;overflow:hidden;background:#163840;box-shadow:0 16px 35px #0003}canvas{display:block;width:100%;height:auto;touch-action:none}#notice{min-height:24px;text-align:center;font-size:14px;color:#f5d696}#controls{display:flex;gap:8px;justify-content:center}#controls button{flex:1;max-width:125px;font-size:13px}.toolbar{display:flex;gap:10px;margin:14px 0}.toolbar button{flex:1;background:#294651;color:#d7edf0}#tiles{position:absolute;inset:20% 5% 14%;display:grid;grid-template-columns:repeat(4,1fr);gap:8px}#tiles button{min-width:0;min-height:48px;padding:0;background:#bcd1ef;color:#10293b;font-size:23px;box-shadow:0 4px 0 #061a2466}#tiles button.open{background:#ffe4a3}#tiles button.matched{background:#2bd4a2;opacity:.85}#overlay{position:absolute;inset:0;background:#102630ed;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:24px;text-align:center;gap:18px}#overlay p{line-height:1.5;color:#bbd8d5}#overlay button{width:100%}#back{background:#314b57;color:#e9f6f8}details{font-size:12px;color:#b4ccd1;margin:24px 0}summary{cursor:pointer;padding:14px 0}#history p{padding:12px;background:#18333d;border-radius:8px;line-height:1.7}[hidden]{display:none!important}@media(max-width:350px){main{padding:12px}h1{font-size:32px}#tiles{gap:5px}#tiles button{font-size:19px}}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto}}
# phone play area touch handling
.arena,#canvas{touch-action:none;overscroll-behavior:contain}.arcade-play-head{height:44px;margin-bottom:6px!important}.arcade-play-head a{min-height:44px!important;font-size:12px!important}.game-list .game-card{min-height:78px;align-items:center;padding:13px 15px}.game-list .game-card small{line-height:1.35}.game-list .game-icon{font-size:30px;width:46px;height:46px;display:grid;place-items:center}.game-card:active,#controls button:active,#tiles button:active{transform:scale(.98)}#play .arena{min-height:250px}#play #canvas{max-height:52dvh}#tiles button{touch-action:manipulation;min-width:44px;min-height:44px}@media(max-width:380px){main{padding:12px}.demo{padding:8px 5px;font-size:9px}#play .arena{min-height:210px}#play #canvas{max-height:46dvh}.round-heading h2{font-size:21px}.round-heading strong{font-size:24px}.toolbar button,#controls button{min-height:52px}}