/* Letterbox shell. The canvas is sized entirely from JS (render.js resize()) so that every
   game pixel maps to an integer number of DEVICE pixels -- see the note in render.js. */

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: #0a0a12;
  color: #e8f4ff;
  font-family: "Trebuchet MS", "Segoe UI", system-ui, sans-serif;
}

body {
  display: grid;
  place-items: center;
}

#stage {
  position: relative;
  line-height: 0;          /* kills the inline-element descender gap under the canvas */
}

#view {
  display: block;
  image-rendering: pixelated;          /* belt and braces; JS already guarantees integer scale */
  image-rendering: crisp-edges;
  background: #0a0a12;
}

/* DOM screens (title, select, shop, level-up, pause, summary) overlay the canvas and are
   positioned/scaled to match it exactly; render.js sets --scale and the pixel box. */
#screens {
  position: absolute;
  inset: 0;
  line-height: normal;
  pointer-events: none;
}

#screens > * { pointer-events: auto; }

.fatal {
  max-width: 44rem;
  margin: 4rem auto;
  padding: 2rem;
  line-height: 1.5;
  background: #141425;
  border: 2px solid #3a6bd0;
  border-radius: 8px;
}
.fatal h1 { margin-top: 0; color: #77b4ff; }
.fatal pre {
  background: #0a0a12;
  padding: 0.6rem 0.9rem;
  border-radius: 4px;
  border-left: 3px solid #5fd35f;
  overflow-x: auto;
}
.fatal code { color: #ffd166; }