/*
 * Design-system page only. Re-enables scrolling/selection that the game
 * stylesheet locks down, and adds documentation layout. Uses tokens only.
 */

html.ds,
body.ds {
  height: auto;
  min-height: 100%;
  overflow: auto;
  user-select: text;
  background: var(--scene-bg);
}

.ds code {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.88em;
  color: var(--primary-20);
}

.ds-header,
.ds-main,
.ds-footer {
  width: min(1040px, 100% - 48px);
  margin-inline: auto;
}

.ds-header { padding: 56px 0 8px; }
.ds-header-inner {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
  padding: 40px 44px 36px;
}
.ds-header .title-xl { margin: 6px 0 12px; }
.ds-header .subtitle { margin: 0; max-width: 520px; }
.ds-link-btn { display: inline-block; text-decoration: none; text-align: center; margin-top: 0; }

.ds-main { padding: 24px 0 40px; }
.ds-section { margin: 56px 0; }
.ds-h2 {
  margin: 0 0 6px;
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--primary-75);
}
.ds-lede { margin: 0 0 22px; font-size: 14px; line-height: 1.55; color: var(--contrast-10); max-width: 62ch; }
.ds-lede code { color: var(--primary-75); }

/* Swatches */
.ds-swatches {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 14px;
}
.ds-swatch {
  appearance: none;
  font: inherit;
  text-align: left;
  padding: 0;
  cursor: pointer;
  background: var(--panel-bg);
  border: 1px solid var(--panel-line);
  border-radius: 2px;
  overflow: hidden;
  color: var(--text-hi);
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  transition: box-shadow 0.08s ease;
}
.ds-swatch:hover,
.ds-swatch:focus-visible { outline: none; box-shadow: 0 0 0 3px var(--primary-50); }
.ds-chip { height: 72px; border-bottom: 1px solid var(--panel-line); }
.ds-swatch-body { padding: 10px 12px 12px; }
.ds-swatch-name { font-size: 13px; font-weight: 600; }
.ds-swatch-val { font-size: 12px; color: var(--text-lo); font-variant-numeric: tabular-nums; margin-top: 2px; word-break: break-all; }
.ds-swatch-desc { font-size: 12px; color: var(--text-lo); margin-top: 6px; line-height: 1.4; }

/* Typography */
.ds-type { padding: 28px 32px; }
.ds-type-row {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 20px;
  align-items: baseline;
  padding: 14px 0;
  border-top: 1px solid color-mix(in srgb, var(--panel-line) 45%, transparent);
}
.ds-type-row:first-of-type { border-top: 0; }
.ds-type-row .title-xl,
.ds-type-row .subtitle,
.ds-type-row .steps { margin: 0; }
.ds-meta { font-size: 12px; color: var(--text-lo); font-variant-numeric: tabular-nums; }
.ds-num-lg { font-size: 24px; font-weight: 700; line-height: 1.15; font-variant-numeric: tabular-nums; }
.ds-num-md { font-size: 20px; font-weight: 700; line-height: 1.15; color: var(--primary); font-variant-numeric: tabular-nums; }

/* Panels */
.ds-panels,
.ds-assets { display: flex; flex-wrap: wrap; gap: 40px; align-items: flex-end; }
.ds-fig { margin: 0; display: flex; flex-direction: column; align-items: center; gap: 12px; }
.ds-fig figcaption { font-size: 12px; color: var(--contrast-10); }
.ds-fig figcaption code { color: var(--contrast-10); }
.ds-row figcaption,
.ds-asset figcaption,
.ds-asset figcaption code { color: var(--text-lo); }
.ds-panel-demo { padding: 14px 26px; }
.ds-panel-lg { padding: 40px 56px; }

/* Buttons */
.ds-row { display: flex; flex-wrap: wrap; gap: 40px; padding: 28px 32px; margin-bottom: 18px; }
.ds-row .cta-btn { margin-top: 0; }

.cta-btn.ds-force-hover { --stroke-w: 4px; --tl-radius: 12px; }
.cta-btn.ds-force-hover::before,
.cta-btn.ds-force-active::before { visibility: visible; }
.cta-btn.ds-force-active { --stroke-w: 4px; --tl-radius: 12px; --stroke-c: var(--secondary); color: var(--secondary); }
.padbtn.ds-force-pad-hover { box-shadow: 0 0 0 3px var(--secondary-20); }

/* Feedback on night bg */
.ds-night {
  display: flex;
  flex-wrap: wrap;
  gap: 56px;
  align-items: center;
  padding: 36px 40px;
  background: radial-gradient(120% 140% at 50% 100%, #4a3468 0%, #1c2150 45%, var(--scene-bg) 100%);
  border: 1px solid #1c2150;
  border-radius: 2px;
}
.ds-go {
  font-weight: 800;
  letter-spacing: -0.01em;
  font-size: 72px;
  line-height: 1;
  color: var(--primary-75);
  text-shadow: 0 0 40px rgba(212, 154, 106, 0.8), 0 4px 0 var(--primary-20);
}
.pickup-popup.ds-static { position: static; transform: none; animation: none; }
.ds-bar { margin: 0; }

/* Assets */
.ds-asset { padding: 28px 36px 18px; }
.ds-asset .root { display: none; }

.ds-footer { padding: 24px 0 48px; color: var(--contrast-10); }

.ds-toast {
  position: fixed;
  left: 50%;
  bottom: 24px;
  transform: translate(-50%, 12px);
  padding: 10px 18px;
  background: var(--panel-bg);
  border: 1px solid var(--panel-line);
  border-radius: 2px;
  font-size: 13px;
  color: var(--text-hi);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.15s ease, transform 0.15s ease;
}
.ds-toast.show { opacity: 1; transform: translate(-50%, 0); }

@media (max-width: 640px) {
  .ds-header-inner { padding: 32px 26px 28px; }
  .ds-type { padding: 20px; }
  .ds-type-row { grid-template-columns: 1fr; gap: 6px; }
}

@media (prefers-reduced-motion: reduce) {
  .ds-toast, .ds-swatch { transition: none; }
}