:root{ --bg:#0b0c10; --panel:#111319; --text:#e6e6e6; --muted:#a6aab5; --brand:#6ee7b7; --border:#24283a; --card:#151826; --accent:#60a5fa; }
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--text);font:16px/1.6 system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Cantarell,Noto Sans}
a{color:inherit;text-decoration:none}
.header{background:#111319;padding:12px}
.container{max-width:1100px;margin:auto;padding:20px}
.brand{font-weight:800;display:flex;align-items:center;gap:8px}
.logo{background:var(--brand);padding:6px 10px;border-radius:8px;color:#000;font-weight:900}
.card{border:1px solid var(--border);background:#0f1422;border-radius:12px;padding:16px;margin:12px 0}
.row{display:flex;gap:12px;flex-wrap:wrap;align-items:center}
.muted{color:var(--muted)} .small{font-size:14px}
.btn{padding:10px 14px;border-radius:10px;border:1px solid var(--border);background:#141827;color:#fff;cursor:pointer}
.btn:hover{transform:translateY(-1px)}
.btn.primary{background:var(--accent);border-color:transparent}
.grid{display:grid;gap:12px;grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}
.gamecard{display:block;border:1px solid var(--border);background:#0f1422;border-radius:12px;padding:12px}
.gamecard:hover{filter:brightness(1.08)}
.table{width:100%;border-collapse:collapse;border:1px solid var(--border);border-radius:12px;overflow:hidden}
.table th,.table td{padding:8px 10px;border-bottom:1px solid var(--border);text-align:left}
.center{text-align:center}
.board{display:grid;gap:10px;margin-top:12px}
.tile{height:72px;display:grid;place-items:center;border:1px solid var(--border);border-radius:12px;background:#0f1422;font-size:28px;cursor:pointer;user-select:none;transition:transform .08s ease}
.tile.revealed{background:#182036}
.tile.matched{background:#16301e;border-color:#1f5133}
@media (min-width:980px){ .board{grid-template-columns:repeat(8,1fr)} }
@media (max-width:979px){ .board{grid-template-columns:repeat(6,1fr)} }
@media (max-width:720px){ .board{grid-template-columns:repeat(4,1fr)} .tile{height:64px;font-size:24px} }