:root {
  --paper: #f6f3ec;
  --ink: #1d1b19;
  --muted: #6d675f;
  --line: #d9d2c4;
  --frame: #1d1b19;
  --ok: #02873a;
  --bad: #c0281a;
  --mono: ui-monospace, "SF Mono", "Cascadia Mono", Menlo, Consolas, monospace;
  color-scheme: light;
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--paper); color: var(--ink); }
body {
  font: 16px/1.5 var(--mono);
  min-height: 100dvh;
  display: grid;
  grid-template-rows: auto 1fr auto;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 16px;
}
header { display: flex; flex-wrap: wrap; align-items: baseline; gap: 8px 24px; padding: 28px 0 18px; border-bottom: 2px solid var(--frame); }
h1 {
  margin: 0; font-size: clamp(2.6rem, 7vw, 4.2rem); line-height: 0.9; letter-spacing: -0.04em; font-weight: 800;
  /* the title itself is made of pixels */
  background: linear-gradient(90deg, #e50000 0 20%, #e59500 20% 40%, #02be01 40% 60%, #0083c7 60% 80%, #820080 80%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.tag { margin: 0; color: var(--muted); flex: 1 1 240px; }
.stats { display: flex; gap: 22px; margin: 0; flex-wrap: wrap; }
.stats div { display: grid; }
.stats dt { font-size: 0.72rem; color: var(--muted); }
.stats dd { margin: 0; font-size: 1.35rem; font-weight: 700; font-variant-numeric: tabular-nums; }

main { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 32px; padding: 28px 0; align-items: start; }
.stage { position: relative; width: min(100%, 72vh); aspect-ratio: 1; border: 3px solid var(--frame); box-shadow: 8px 8px 0 var(--frame); background: #fff; }
#board, #overlay { position: absolute; inset: 0; width: 100%; height: 100%; }
#board { image-rendering: pixelated; image-rendering: crisp-edges; }
#overlay { cursor: crosshair; touch-action: manipulation; }
.badge { position: absolute; top: 10px; left: 10px; background: var(--frame); color: var(--paper); padding: 2px 8px; font-size: 0.8rem; }

.tools { display: grid; gap: 18px; }
.palette { display: grid; grid-template-columns: repeat(8, 1fr); gap: 6px; }
.swatch { aspect-ratio: 1; border: 2px solid var(--frame); border-radius: 0; padding: 0; cursor: pointer; }
.swatch[aria-checked="true"] { outline: 3px solid var(--frame); outline-offset: 2px; transform: translateY(-2px); }
.swatch:focus-visible { outline: 3px solid #0083c7; outline-offset: 2px; }
.cool { display: grid; gap: 6px; font-size: 0.86rem; color: var(--muted); }
.cool-track { height: 10px; border: 2px solid var(--frame); background: #fff; }
.cool-fill { height: 100%; width: 100%; background: var(--frame); transform-origin: left; }
.coords { margin: 0; font-size: 0.86rem; color: var(--muted); min-height: 1.5em; }
.actions button {
  font: inherit; font-weight: 700; background: var(--paper); color: var(--ink); border: 2px solid var(--frame);
  box-shadow: 4px 4px 0 var(--frame); padding: 8px 14px; cursor: pointer;
}
.actions button:active { transform: translate(2px, 2px); box-shadow: 2px 2px 0 var(--frame); }
.actions button:disabled { opacity: 0.5; cursor: progress; }
.feed { list-style: none; margin: 0; padding: 0; display: grid; gap: 4px; font-size: 0.82rem; color: var(--muted); }
.feed li { display: flex; align-items: center; gap: 8px; }
.feed i { width: 12px; height: 12px; border: 1px solid var(--frame); display: inline-block; }

.setup { padding: 48px 0; max-width: 640px; }
.setup pre { background: #fff; border: 2px solid var(--frame); padding: 14px; overflow-x: auto; }

footer { border-top: 2px solid var(--frame); padding: 14px 0 22px; font-size: 0.82rem; color: var(--muted); }
.dep { font-weight: 700; color: var(--ink); }
.dep::before { content: "●"; margin-right: 4px; color: var(--line); }
.dep.ok::before { color: var(--ok); }
.dep.bad::before { color: var(--bad); }
.by { display: block; margin-top: 4px; }
a { color: inherit; }

@media (max-width: 820px) {
  main { grid-template-columns: minmax(0, 1fr); }
  .stage { width: 100%; }
  .feed { display: none; }
}
@media (prefers-reduced-motion: reduce) { .cool-fill { transition: none !important; } }