:root{color:#f6f2df;background:radial-gradient(circle at top,#5fd3e02b,#0000 32%),radial-gradient(circle at bottom,#ffa04b29,#0000 36%),linear-gradient(#02060d 0%,#0b1520 52%,#1b1009 100%);font-family:IBM Plex Mono,SFMono-Regular,Menlo,Monaco,Consolas,Liberation Mono,monospace}*{box-sizing:border-box}html,body,#app{width:100%;min-height:100%;margin:0}body{min-height:100vh}.shell{place-items:center;min-height:100vh;padding:24px;display:grid}.stage{aspect-ratio:4/3;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);background:linear-gradient(#ffffff0a,#ffffff04),#03080fb3;border-radius:28px;place-items:center;width:min(96vw,1120px);padding:clamp(10px,1.4vw,18px);display:grid;box-shadow:0 28px 80px #0006,inset 0 0 0 1px #add8ff17}.game-canvas{max-width:100%;max-height:100%;image-rendering:crisp-edges;border-radius:20px;display:block;box-shadow:0 0 0 1px #bce4ff14,0 18px 32px #00000059}