/* Desert Ant Labs shared demo visual system.
 *
 * Reusable across product demo pages (uhm-demo, clear-demo, future).
 * Loads lib/ds/styles.css for the brand tokens, then layers demo-specific
 * primitives on top. Classes (not utilities), so a page composes them in
 * markup without a build step.
 */

:root {
  /* Tunable demo-layer aliases on top of the design-system tokens. */
  --pad-page: clamp(1.25rem, 4vw, 4.5rem);
  --gap-card: clamp(3rem, 7vw, 7rem);

  /* Demo display sizes. Large; the brand voice carries. */
  --size-eyebrow: var(--text-2xs);
  --size-meta:    var(--text-2xs);
  --size-body:    var(--text-md);
  --size-lead:    var(--text-xl);
  --size-h3:      var(--text-3xl);
  --size-h2:      var(--text-5xl);
  --size-h1:      var(--text-7xl);
  --size-stat:    var(--text-5xl);

  color-scheme: light;
}

html, body { margin: 0; padding: 0; }

body {
  background: var(--bg-canvas);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: var(--size-body);
  line-height: var(--leading-normal);
  -webkit-font-smoothing: antialiased;
}

a { color: var(--text-accent); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }

/* ─────────── Layout primitives ─────────── */

.page {
  max-width: var(--container-xl);
  margin: 0 auto;
  padding: var(--pad-page);
}

.card {
  position: relative;
  padding: clamp(3rem, 6vw, 5rem) 0;
  border-bottom: var(--border-hair) solid var(--border-subtle);
}
.card:last-of-type { border-bottom: 0; }

/* Optional right-aligned variant for eyebrow secondary content. */
.eyebrow .right { margin-left: auto; color: var(--text-muted); }

/* Stat block: big serif number, mono caption. */
.stat-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: clamp(1.25rem, 3vw, 3rem);
  border-top: var(--border-hair) solid var(--border-subtle);
  padding-top: 1.5rem;
}
.stat {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.stat .num {
  font-family: var(--font-display);
  font-weight: var(--weight-regular);
  font-size: clamp(1.75rem, 3vw, 2.75rem);
  line-height: var(--leading-none);
  letter-spacing: var(--tracking-tight);
  color: var(--text-primary);
  font-variant-numeric: tabular-nums;
}
.stat .num.accent { color: var(--text-accent); font-style: italic; }
.stat .label {
  font-family: var(--font-mono);
  font-size: var(--size-meta);
  color: var(--text-muted);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
}

/* Meta row: small mono labels. */
.meta {
  font-family: var(--font-mono);
  font-size: var(--size-meta);
  color: var(--text-muted);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
}

/* Bar comparator: two stacked rows with rounded bars. */
.bar-compare {
  display: grid;
  grid-template-columns: minmax(120px, 0.7fr) 1fr auto;
  align-items: center;
  gap: clamp(0.75rem, 2vw, 1.75rem);
  margin: 1rem 0;
}
.bar-compare .lbl {
  display: flex; flex-direction: column;
}
.bar-compare .lbl .who { font-weight: var(--weight-semibold); font-size: 1.05rem; }
.bar-compare .lbl .where {
  font-family: var(--font-mono); font-size: 0.78rem;
  color: var(--text-muted); letter-spacing: var(--tracking-wide); text-transform: uppercase;
}
.bar-compare .track {
  height: 14px; border-radius: var(--radius-full); background: var(--bg-sunken);
  overflow: hidden; position: relative;
}
.bar-compare .fill {
  height: 100%; border-radius: var(--radius-full);
  background: var(--text-primary);
}
.bar-compare .fill.accent { background: var(--accent); }
.bar-compare .val {
  font-family: var(--font-mono);
  font-weight: var(--weight-semibold); font-size: 1.05rem;
  font-variant-numeric: tabular-nums;
  min-width: 4ch;
  text-align: right;
}
.bar-compare .val.accent { color: var(--text-accent); }

/* Pill button: file picker, model toggle, etc. */
.pill {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.55rem 1rem;
  border-radius: var(--radius-full);
  border: var(--border-hair) solid var(--border-default);
  background: var(--bg-surface);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  cursor: pointer;
  transition: var(--transition-colors);
}
.pill:hover { background: var(--bg-sunken); }
.pill.active {
  background: var(--accent);
  color: var(--accent-contrast);
  border-color: var(--accent);
}
.pill.ghost { color: var(--text-muted); }
.pill:disabled { opacity: 0.4; cursor: not-allowed; }

/* Compact app links: shown in the CTA. */
.app-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
}
.app-link {
  display: inline-flex;
  flex-direction: column;
  gap: 4px;
  padding: var(--space-3) var(--space-5);
  border: var(--border-hair) solid var(--border-subtle);
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: var(--transition-colors);
}
.app-link:hover {
  border-color: var(--accent);
  background: var(--bg-raised);
  text-decoration: none;
}
.app-link .name {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: var(--weight-regular);
  color: var(--text-primary);
  letter-spacing: var(--tracking-tight);
}
.app-link .platforms {
  font-family: var(--font-mono);
  font-size: var(--text-2xs);
  color: var(--text-muted);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
}

/* Footer: brand and page count. */
.brand-footer {
  display: flex;
  justify-content: space-between;
  padding: 1rem 0;
  border-top: var(--border-hair) solid var(--border-subtle);
  font-family: var(--font-mono);
  font-size: var(--size-meta);
  color: var(--text-muted);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
}

/* Credits: sits above the brand footer. */
.credits {
  padding: 1rem 0 0.6rem;
  font-family: var(--font-mono);
  font-size: var(--size-meta);
  color: var(--text-muted);
  letter-spacing: var(--tracking-wide);
  line-height: 1.7;
}
.credits .credits-label {
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
  margin-right: 0.6rem;
  color: var(--text-muted);
}
.credits a {
  color: var(--text-secondary);
  border-bottom: var(--border-hair) solid var(--border-subtle);
}
.credits a:hover {
  color: var(--text-accent);
  border-bottom-color: var(--text-accent);
  text-decoration: none;
}

/* Inline link inside flowing prose. */
.inline-link {
  color: inherit;
  border-bottom: var(--border-hair) solid currentColor;
  text-decoration: none;
}
.inline-link:hover {
  color: var(--text-accent);
  border-bottom-color: var(--text-accent);
  text-decoration: none;
}