:root{color-scheme:dark}*{box-sizing:border-box}body{margin:0;min-height:100vh;display:grid;place-items:center;background:radial-gradient(circle at 50% 0%,#1a1420,#08080c 70%);color:#e6e6ea;font-family:system-ui,-apple-system,Segoe UI,sans-serif}main{text-align:center;padding:1rem;display:flex;flex-direction:column;height:100vh;width:100vw}h1{flex:0 0 auto;margin:0 0 .6rem;font-size:clamp(1.5rem,5vw,2.75rem);letter-spacing:.35em;font-weight:800;color:#e8462b;text-shadow:0 0 24px rgba(232,70,43,.45)}.stage{position:relative;flex:1 1 auto;min-height:0;aspect-ratio:1024 / 640;max-width:100%;margin:0 auto;border-radius:10px;overflow:hidden;box-shadow:0 14px 50px #000000a6;background:#12102a}.stage canvas{position:absolute;top:0;right:0;bottom:0;left:0;display:block;width:100%;height:100%;touch-action:none}#game{z-index:1}#game3d{z-index:0}.hint{flex:0 0 auto;color:#8a8a95;font-size:.85rem;margin-top:.85rem}main:fullscreen h1,main:fullscreen .hint{display:none}main:fullscreen .stage{border-radius:0;box-shadow:none}