*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { text-size-adjust: 100%; }
body {
  min-height: 100%;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: var(--body-size);
  line-height: calc(var(--body-leading) / var(--body-size));
}
img, canvas, svg { display: block; max-width: 100%; }
button, input, select, textarea { font: inherit; color: inherit; background: none; border: 0; }
a { color: var(--sec); text-decoration: none; }
:lang(hi) { font-family: var(--font-devanagari); }
h1 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--h1-size);
  line-height: calc(var(--h1-leading) / var(--h1-size));
  letter-spacing: var(--h1-track);
  color: var(--navy);
}
.caption {
  font-size: var(--caption-size);
  line-height: calc(var(--caption-leading) / var(--caption-size));
  color: var(--sec);
}
.wrap {
  width: min(100% - (2 * var(--page-pad)), var(--content-max));
  margin-inline: auto;
  padding-block: var(--space-4);
}
.stack { display: flex; flex-direction: column; gap: var(--space-3); }
.grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--gutter-m);
}
.glass { background: var(--glass); backdrop-filter: blur(var(--blur)); }
button, input, select, textarea, summary, .skip-link {
  min-height: var(--touch-min);
  min-width: var(--touch-min);
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: var(--control-min);
  min-width: var(--touch-min);
  padding-inline: var(--space-4);
  border-radius: var(--radius-pill);
  background: var(--navy);
  color: var(--on-accent);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--cta-size);
  line-height: calc(var(--cta-leading) / var(--cta-size));
}
.skip-link {
  position: absolute;
  left: var(--page-pad);
  top: var(--space-3);
  z-index: 22;
  padding: var(--space-2) var(--space-3);
  background: var(--surface);
  color: var(--ink);
  transform: translateY(-150%);
}
.skip-link:focus { transform: none; }
/* TODO: ring thickness and offset are not in the sources. Colour is --action. */
:focus-visible { outline-style: solid; outline-color: var(--action); }
.viewer {
  position: relative;
  width: 100%;
  max-width: var(--page-mobile);
  aspect-ratio: 1;
  background: var(--sky-ground);
}
.viewer canvas { width: 100%; height: 100%; }
.viewer:not(.is-live) canvas { display: none; }
.viewer [data-fallback] { padding: var(--space-3); }
.viewer.is-live [data-fallback] {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}
@media (min-width: 1024px) {
  body {
    font-size: var(--body-size-d);
    line-height: calc(var(--body-leading-d) / var(--body-size-d));
  }
  h1 {
    font-size: var(--h1-size-d);
    line-height: calc(var(--h1-leading-d) / var(--h1-size-d));
  }
  .grid { grid-template-columns: repeat(12, minmax(0, 1fr)); gap: var(--gutter-d); }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}
/* TODO: no reduced-transparency fill is specified. Opaque --surface stands in. */
@media (prefers-reduced-transparency: reduce) {
  .glass { backdrop-filter: none; background: var(--surface); }
}