:root{color-scheme:dark;font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;background:radial-gradient(circle at top,rgba(52,152,219,.28),transparent 35%),linear-gradient(180deg,#09111a,#05080c);color:#f4f7fb}*{box-sizing:border-box}body{margin:0;min-height:100vh;background:transparent}.page-shell{min-height:100vh;padding:32px 16px 40px;display:grid;gap:24px;justify-items:center}.page-header{text-align:center}.eyebrow{margin:0 0 8px;font-size:.8rem;letter-spacing:.24em;text-transform:uppercase;color:#7edcff}.page-header h1{margin:0;font-size:clamp(2.4rem,4vw,4rem)}.subtitle{margin:10px 0 0;color:#f4f7fbb8}.game-shell{width:min(100%,1320px)}.game-frame{width:100%;min-height:720px;display:grid;place-items:center;padding:16px;border:1px solid rgba(126,220,255,.2);border-radius:24px;background:#030a12b8;box-shadow:0 30px 80px #00000059;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.game-frame canvas{width:100%;max-width:1280px;height:auto;border-radius:16px}@media(max-width:900px){.page-shell{padding-top:20px}.game-frame{min-height:0;padding:10px;border-radius:18px}}