:root{--bg-cosmic:#070913;--card-bg:#12182bbf;--card-border:#6366f140;--board-bg:#0f1425d9;--cell-bg:#1e294573;--text-primary:#f8fafc;--text-secondary:#94a3b8;--accent-cyan:#38bdf8;--accent-purple:#a855f7;--accent-pink:#ec4899;--content-max-width:450px;--board-size:clamp(280px, min(var(--content-max-width), calc(100vw - 32px), calc(100dvh - 240px)), 450px);--grid-gap:clamp(8px, 2.2vw, 14px);--tile-size:calc((var(--board-size) - (var(--grid-gap) * 5.5)) / 4)}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent;-webkit-user-select:none;user-select:none;scrollbar-width:thin;scrollbar-color:#a855f780 #0f142599;margin:0;padding:0}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:#0f142580;border-radius:9999px}::-webkit-scrollbar-thumb{background:linear-gradient(#a855f7b3,#38bdf8b3);border:1px solid #0f142599;border-radius:9999px;box-shadow:0 0 8px #a855f766}::-webkit-scrollbar-thumb:hover{background:linear-gradient(#a855f7f2,#38bdf8f2);box-shadow:0 0 12px #38bdf8b3}html,body{width:100%;max-width:100vw;overflow-x:hidden}body{background-color:var(--bg-cosmic);color:var(--text-primary);justify-content:center;align-items:center;min-height:100dvh;font-family:Outfit,-apple-system,BlinkMacSystemFont,sans-serif;display:flex}body.theme-luna,body{background-color:#070913;background-image:radial-gradient(80% 50% at 50% -20%,#6366f159,#0000),radial-gradient(circle at 10% 80%,#a855f733,#0000 40%),radial-gradient(circle at 90% 85%,#38bdf82e,#0000 40%);background-attachment:fixed}body.theme-classic{background-color:#0f172a;background-image:radial-gradient(80% 50% at 50% -20%,#4f46e566,#0000),radial-gradient(circle at 15% 85%,#9333ea40,#0000 45%),radial-gradient(circle at 85% 85%,#0ea5e938,#0000 45%),linear-gradient(#0f172a 0%,#1e1b4b 50%,#0f172a 100%);background-attachment:fixed}body.theme-dark_classic{background-color:#09090b;background-image:radial-gradient(80% 50% at 50% -20%,#d9770659,#0000),radial-gradient(circle at 10% 80%,#b4530940,#0000 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