:root{color-scheme:dark;font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;line-height:1.5}*{box-sizing:border-box;margin:0;padding:0}html,body,#root{width:100%;height:100%;overflow:hidden;background:#0a0a1a;color:#fafafa}.menu{width:100%;height:100vh;display:flex;align-items:center;justify-content:center;background:radial-gradient(ellipse at center,#1a1a3e,#0a0a1a 70%)}.menu-card{text-align:center;padding:3rem 4rem;border:1px solid rgba(255,255,255,.08);border-radius:1rem;background:#0006;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}.menu-title{font-size:3rem;font-weight:800;letter-spacing:.08em;background:linear-gradient(135deg,#22d3ee,#6366f1,#f43f5e);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:.5rem}.menu-sub{color:#ffffff80;font-size:1rem;margin-bottom:2rem}.controls{display:flex;flex-direction:column;gap:.5rem;margin-bottom:2rem}.control-row{display:flex;align-items:center;justify-content:center;gap:1rem;font-size:.9rem;color:#fff9}kbd{display:inline-block;min-width:70px;padding:.25rem .5rem;font-family:ui-monospace,monospace;font-size:.8rem;text-align:center;color:#22d3ee;background:#22d3ee14;border:1px solid rgba(34,211,238,.2);border-radius:.375rem}.play-btn{padding:.85rem 3rem;font-size:1.1rem;font-weight:700;letter-spacing:.12em;color:#fff;background:linear-gradient(135deg,#6366f1,#8b5cf6);border:none;border-radius:.5rem;cursor:pointer;transition:transform .15s,box-shadow .15s}.play-btn:hover{transform:translateY(-2px);box-shadow:0 8px 30px #6366f166}.play-btn:active{transform:translateY(0)}.game-canvas{display:block;width:100%;height:100%;cursor:crosshair}