@font-face{font-family:Pyramid Pixel;src:local("Courier New")}:root{color-scheme:dark;font-family:Pyramid Pixel,ui-monospace,monospace;background:#210704;color:#fff0a0;font-synthesis:none}*{box-sizing:border-box}html,body{width:100%;min-width:760px;height:100%;min-height:560px;margin:0;overflow:hidden;background:radial-gradient(circle at 50% 110%,#7e1c05 0 18%,transparent 48%),linear-gradient(#210704,#3a0c05 65%,#1b0503)}body:before{position:fixed;inset:0;content:"";pointer-events:none;opacity:.18;background-image:linear-gradient(90deg,transparent 49%,#f7a914 50%,transparent 51%),linear-gradient(transparent 49%,#f7a914 50%,transparent 51%);background-size:96px 96px;-webkit-mask-image:linear-gradient(to bottom,transparent,#000);mask-image:linear-gradient(to bottom,transparent,#000)}.game-shell{position:relative;z-index:1;display:grid;width:100%;height:100%;place-items:center;padding:28px}.game-frame{position:relative;display:grid;width:min(calc(100vw - 72px),calc((100vh - 72px) * 16 / 9));aspect-ratio:16 / 9;overflow:hidden;border:8px solid #f6a914;outline:4px solid #7b1c06;background:#4a1006;box-shadow:0 0 0 4px #fff0a0,0 0 0 10px #4a1006,0 28px 80px #000b}.game-frame:after{position:absolute;inset:0;content:"";pointer-events:none;opacity:.09;background:repeating-linear-gradient(to bottom,transparent 0 3px,#210704 3px 4px);mix-blend-mode:multiply}canvas{width:100%;height:100%;image-rendering:pixelated;image-rendering:crisp-edges;outline:none;cursor:crosshair}.boot-message{position:absolute;inset:0;display:grid;place-items:center;color:#fff0a0;font-size:clamp(14px,2vw,24px);letter-spacing:.08em;background:#4a1006}.boot-message[hidden]{display:none}.screen-reader-help{position:fixed;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}@media(prefers-reduced-motion:reduce){.game-frame:after{display:none}}