/* ============================================================================
   References Index Page (/references/)
   Small landing page that lists every reference page as a card. Uses the
   site's shared CSS variables so dark/light theme switching is automatic.
   ========================================================================== */

.references-index {
  padding: var(--space-2xl) 0 var(--space-3xl);
}

.references-index__container {
  max-width: 64rem;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.references-index__hero {
  margin-bottom: var(--space-xl);
}
.references-index__eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.75rem;
  color: var(--c-accent);
  margin: 0 0 var(--space-sm);
  font-weight: 600;
}
.references-index__title {
  font-size: clamp(1.75rem, 1.4rem + 1.5vw, 2.5rem);
  margin: 0 0 var(--space-md);
  line-height: 1.15;
  color: var(--c-text);
}
.references-index__lede {
  font-size: 1.05rem;
  line-height: 1.65;
  color: var(--c-text);
  margin: 0;
  max-width: 50rem;
}

.references-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 22rem), 1fr));
  gap: var(--space-lg);
}

.references-card {
  display: contents;
}

.references-card__link {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-lg);
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--border-radius);
  text-decoration: none;
  color: inherit;
  transition: border-color var(--transition-fast),
              transform var(--transition-fast),
              box-shadow var(--transition-fast);
}
.references-card__link:hover,
.references-card__link:focus-visible {
  border-color: var(--c-accent-border);
  transform: translateY(-2px);
  box-shadow: 0 6px 18px var(--c-card-shadow);
  outline: none;
}

.references-card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 3rem;
  height: 3rem;
  background: var(--c-surface-alt);
  border: 1px solid var(--c-border-light);
  border-radius: var(--border-radius);
  flex-shrink: 0;
}
.references-card__icon img {
  width: 1.75rem;
  height: 1.75rem;
}

.references-card__body {
  min-width: 0;
}
.references-card__title {
  margin: 0 0 0.35rem;
  font-size: 1.15rem;
  line-height: 1.3;
  color: var(--c-text);
}
.references-card__blurb {
  margin: 0 0 0.55rem;
  font-size: 0.9rem;
  line-height: 1.5;
  color: var(--c-text-muted);
  /* clamp blurb to 3 lines so card heights stay roughly aligned */
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.references-card__meta {
  margin: 0;
  font-size: 0.8rem;
  color: var(--c-text-faint);
  font-variant-numeric: tabular-nums;
}
.references-card__meta strong {
  color: var(--c-accent);
}
.references-card__meta time {
  font-variant-numeric: tabular-nums;
}

.references-card__cta {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--c-accent);
  white-space: nowrap;
  align-self: center;
  flex-shrink: 0;
}

/* Small screens — collapse to single column, hide cta arrow (whole card clickable). */
@media (max-width: 640px) {
  .references-card__link {
    grid-template-columns: auto 1fr;
    grid-template-areas:
      "icon body"
      "icon cta";
    padding: var(--space-md);
  }
  .references-card__icon { grid-area: icon; align-self: start; }
  .references-card__body { grid-area: body; }
  .references-card__cta  { grid-area: cta; justify-self: start; }
}