/* Shared styles for the public Spark WebGPU demo pages. */
:root {
  color-scheme: dark;
  --fg: #e8e8ee;
  --dim: #a0a0b0;
  --panel: rgba(12, 12, 18, 0.72);
  --accent: #8ab4ff;
}
html,
body {
  margin: 0;
  height: 100%;
  background: #000;
  color: var(--fg);
  font: 13px / 1.4 system-ui, -apple-system, "Segoe UI", sans-serif;
}
canvas {
  display: block;
  touch-action: none;
  outline: none;
}
a {
  color: var(--accent);
}
.hud {
  position: fixed;
  top: 10px;
  left: 10px;
  max-width: min(440px, calc(100vw - 280px));
  background: var(--panel);
  padding: 10px 12px;
  border-radius: 8px;
  backdrop-filter: blur(6px);
}
.hud h1 {
  font-size: 16px;
  margin: 0 0 4px;
}
.hud h1 a {
  color: var(--dim);
  text-decoration: none;
  font-weight: normal;
  margin-right: 6px;
}
.hud p {
  margin: 0;
  color: var(--dim);
}
.hud .stats {
  margin-top: 6px;
  white-space: pre-wrap;
  font: 12px ui-monospace, Menlo, monospace;
  color: var(--fg);
}
.credits {
  position: fixed;
  left: 10px;
  bottom: 8px;
  right: 10px;
  color: var(--dim);
  font-size: 11px;
  text-shadow: 0 0 3px #000, 0 0 2px #000;
  pointer-events: none;
}
.credits a {
  pointer-events: auto;
}
.nogpu {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  background: #0a0a10;
  z-index: 10;
  text-align: center;
}
.nogpu div {
  max-width: 520px;
}
.nogpu h2 {
  margin: 0 0 8px;
  font-size: 20px;
}
.nogpu p {
  color: var(--dim);
  margin: 6px 0;
}
.banner {
  position: fixed;
  bottom: 34px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 5;
  max-width: calc(100vw - 48px);
  background: #5a3a00e0;
  color: #fff;
  padding: 6px 12px;
  border-radius: 6px;
  font-size: 12px;
}
@media (max-width: 640px) {
  .hud {
    max-width: calc(100vw - 40px);
  }
  .lil-gui.root {
    max-height: 45vh;
  }
}