/* Design System — Dev-only reference page styling.
 * Minimal CSS for swatch grids, placeholder boxes, and code labels.
 */

@layer components {
  .ds-section {
    padding-block: var(--block-space-l);

    & + .ds-section {
      border-block-start: 1px solid var(--color-border);
    }

    & > h2 {
      margin-block-end: var(--block-space);
    }

    & > p {
      color: var(--color-ink-muted);
      margin-block-end: var(--block-space);
    }
  }

  .ds-subsection {
    margin-block-start: var(--block-space-l);

    & > h3 {
      margin-block-end: var(--block-space-s);
    }
  }

  /* Color swatches */
  .ds-swatch-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(min(100%, 10rem), 1fr));
    gap: var(--inline-space);
  }

  .ds-swatch {
    display: flex;
    flex-direction: column;
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--color-border);
  }

  .ds-swatch__color {
    height: 4rem;

    /* Brand color swatches */
    &.ds-bg-flare { background: oklch(var(--lch-flare)); }
    &.ds-bg-golden { background: oklch(var(--lch-golden)); }
    &.ds-bg-uv { background: oklch(var(--lch-uv)); }
    &.ds-bg-laser { background: oklch(var(--lch-laser)); }

    /* Surface swatches */
    &.ds-bg-canvas { background: var(--color-canvas); }
    &.ds-bg-surface { background: var(--color-surface); }
    &.ds-bg-ink { background: var(--color-ink); }
    &.ds-bg-ink-muted { background: var(--color-ink-muted); }
    &.ds-bg-border { background: var(--color-border); }

    /* Semantic swatches */
    &.ds-bg-link { background: var(--color-link); }
    &.ds-bg-positive { background: var(--color-positive); }
    &.ds-bg-negative { background: var(--color-negative); }
    &.ds-bg-warning { background: var(--color-warning); }
    &.ds-bg-accent { background: var(--color-accent); }
  }

  .ds-swatch__label {
    padding: var(--block-space-s) var(--inline-space-s);
    font-size: 0.8125rem;
    background: var(--color-surface);

    & code {
      display: block;
      color: var(--color-ink-muted);
      font-size: 0.75rem;
      margin-block-start: 0.125rem;
    }
  }

  /* Placeholder boxes for layout demos */
  .ds-placeholder {
    background: color-mix(in oklch, var(--color-accent) 15%, var(--color-surface));
    border: 1px dashed color-mix(in oklch, var(--color-accent) 40%, transparent);
    border-radius: var(--radius);
    padding: var(--block-space) var(--inline-space);
    text-align: center;
    font-size: 0.875rem;
    color: var(--color-ink-muted);
    min-height: 3rem;
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .ds-placeholder--tall {
    min-height: 6rem;
  }

  /* Inline code label beneath components */
  .ds-code {
    display: block;
    font-size: 0.75rem;
    color: var(--color-ink-muted);
    margin-block-start: var(--block-space-s);
  }

  /* Spacing demo boxes */
  .ds-spacing-demo {
    display: flex;
    align-items: center;
    gap: var(--inline-space);
    margin-block: var(--block-space-s);
  }

  .ds-spacing-box {
    background: color-mix(in oklch, var(--color-link) 20%, var(--color-surface));
    border-radius: var(--radius-sm);

    /* Inline spacing sizes */
    &.ds-inline-s { width: 0.5ch; height: 1.5rem; }
    &.ds-inline { width: 1ch; height: 1.5rem; }
    &.ds-inline-l { width: 2ch; height: 1.5rem; }

    /* Block spacing sizes */
    &.ds-block-s { width: 4rem; height: 0.5rem; }
    &.ds-block { width: 4rem; height: 1rem; }
    &.ds-block-l { width: 4rem; height: 2rem; }

    /* Touch target */
    &.ds-touch {
      width: var(--touch-min);
      height: var(--touch-min);
      border-radius: var(--radius);
    }
  }

  .ds-spacing-label {
    font-size: 0.8125rem;
    color: var(--color-ink-muted);
    min-width: 10rem;
  }

  /* Radius demo */
  .ds-radius-demo {
    display: flex;
    flex-wrap: wrap;
    gap: var(--inline-space-l);
  }

  .ds-radius-box {
    width: 5rem;
    height: 5rem;
    background: var(--color-surface);
    border: 2px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    color: var(--color-ink-muted);

    &.ds-radius-sm { border-radius: var(--radius-sm); }
    &.ds-radius-default { border-radius: var(--radius); }
    &.ds-radius-lg { border-radius: var(--radius-lg); }
    &.ds-radius-pill { border-radius: var(--radius-pill); }
  }

  /* Form inputs narrow container */
  .ds-form-container {
    max-width: 28rem;
  }

  /* Banner spacing between siblings */
  .ds-banner-gap {
    margin-block-start: var(--block-space-s);
  }

  /* Component showcase row */
  .ds-showcase {
    display: flex;
    flex-wrap: wrap;
    align-items: start;
    gap: var(--inline-space-l);
    margin-block: var(--block-space);
  }

  .ds-showcase-item {
    & > span.ds-code {
      display: block;
    }
  }

  /* Progress bar demo swatch */
  .ds-progress-bar {
    height: 0.5rem;
    border-radius: var(--radius-sm);
    background: linear-gradient(to right, oklch(var(--lch-flare)), oklch(var(--lch-golden)));
  }

  /* Frame loading demo container */
  .ds-frame-demo {
    display: block;
    position: relative;
    min-height: 6rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: var(--block-space) var(--inline-space);
  }
}