/* The Variant publication styles */
@import url('/css/tokens.css');

.variant-index__kicker {
  font-family: var(--font-family-mono, 'JetBrains Mono', monospace);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-brand-primary);
  margin: 0 0 8px;
}

.variant-index__feed {
  margin-top: 12px;
  font-size: 0.95rem;
}

.variant-area-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  margin: 24px 0 32px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--color-border-subtle);
}

.variant-area-nav a {
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  color: var(--color-text-secondary);
}

.variant-area-nav a[aria-current='page'] {
  color: var(--color-brand-primary);
}

.variant-filters {
  margin-bottom: 28px;
}

.variant-filters__group {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 12px;
}

.variant-filter-btn {
  font: inherit;
  font-size: 0.875rem;
  padding: 8px 14px;
  border-radius: 999px;
  border: 1px solid var(--color-border-subtle);
  background: var(--color-surface);
  color: var(--color-text-primary);
  cursor: pointer;
}

.variant-filter-btn.is-active,
.variant-filter-btn[aria-pressed='true'] {
  background: var(--color-brand-primary);
  color: #fff;
  border-color: var(--color-brand-primary);
}

.variant-filter-btn:focus-visible {
  outline: 2px solid var(--color-brand-primary);
  outline-offset: 2px;
}

.variant-filters__status {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  margin: 8px 0 0;
}

.variant-card-list {
  display: grid;
  gap: 24px;
}

.variant-card {
  padding: 20px 0;
  border-bottom: 1px solid var(--color-border-subtle);
}

.variant-card.is-hidden {
  display: none;
}

.variant-card__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  font-size: 0.8rem;
  color: var(--color-text-secondary);
  margin: 0 0 8px;
}

.variant-card__type {
  font-weight: 600;
  color: var(--color-brand-primary);
}

.variant-card__title {
  font-family: var(--font-family-display, 'Source Serif 4', serif);
  font-size: clamp(1.25rem, 3vw, 1.6rem);
  margin: 0 0 8px;
  line-height: 1.25;
}

.variant-card__title a {
  color: var(--color-text-primary);
  text-decoration: none;
}

.variant-card__title a:hover {
  color: var(--color-brand-primary);
}

.variant-card__dek {
  margin: 0;
  color: var(--color-text-secondary);
  max-width: 65ch;
}

.variant-empty {
  color: var(--color-text-secondary);
  font-style: italic;
}

.variant-breadcrumb {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  margin-bottom: 24px;
}

.variant-breadcrumb a {
  color: var(--color-brand-primary);
  text-decoration: underline;
  text-underline-offset: 0.12em;
}

.variant-breadcrumb a:hover {
  text-decoration: underline;
}

.variant-sample-banner {
  background: #fff8e6;
  border: 1px solid #e6c200;
  border-radius: 8px;
  padding: 12px 16px;
  margin-bottom: 20px;
  font-size: 0.9rem;
}

.variant-post__header {
  margin-bottom: 32px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--color-border-subtle);
}

.variant-post__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  margin: 0 0 12px;
}

.variant-post__type {
  font-weight: 700;
  color: var(--color-brand-primary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-size: 0.75rem;
}

.variant-post__header h1 {
  font-family: var(--font-family-display, 'Source Serif 4', serif);
  font-size: clamp(1.75rem, 4vw, 2.4rem);
  line-height: 1.15;
  margin: 0 0 12px;
}

.variant-post__dek {
  font-size: 1.1rem;
  color: var(--color-text-secondary);
  max-width: 65ch;
  margin: 0 0 12px;
}

.variant-post__byline {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  margin: 0;
}

.variant-research-banner {
  background: #eef4f8;
  border-left: 4px solid var(--color-brand-primary);
  padding: 16px 20px;
  margin-bottom: 28px;
  border-radius: 0 8px 8px 0;
  font-size: 0.95rem;
  line-height: 1.55;
}

.variant-post__body h2 {
  font-family: var(--font-family-display, 'Source Serif 4', serif);
  font-size: 1.35rem;
  margin: 32px 0 12px;
  color: var(--color-brand-primary);
}

.variant-post__body h3 {
  font-size: 1.05rem;
  margin: 24px 0 8px;
}

.variant-post__body p,
.variant-post__body li {
  max-width: 68ch;
  line-height: 1.65;
}

.variant-post__body ul {
  padding-left: 1.25rem;
  margin: 0 0 16px;
}

.variant-post__body a,
.variant-post__body .variant-cite {
  text-decoration: underline;
  text-underline-offset: 0.12em;
}

.variant-cite {
  font-family: var(--font-family-mono, 'JetBrains Mono', monospace);
  font-size: 0.85em;
  white-space: nowrap;
}

.variant-faq {
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid var(--color-border-subtle);
}

.variant-faq .faq-item {
  margin-bottom: 20px;
}

.variant-faq .faq-q {
  font-weight: 700;
  margin: 0 0 6px;
}

.variant-faq .faq-a {
  margin: 0;
  color: var(--color-text-secondary);
}

.variant-crosslinks {
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid var(--color-border-subtle);
}

.variant-crosslinks__heading {
  font-size: 1.1rem;
  margin: 0 0 12px;
}

.variant-crosslinks__links {
  margin: 0 0 20px;
  font-size: 0.95rem;
}

.variant-cta-btn {
  display: inline-block;
  background: var(--color-brand-primary);
  color: #fff;
  font-weight: 700;
  padding: 12px 22px;
  border-radius: 10px;
  text-decoration: none;
  font-size: 1rem;
}

.variant-cta-btn:hover {
  filter: brightness(1.05);
}

@media (max-width: 640px) {
  .variant-filters__group {
    gap: 6px;
  }

  .variant-filter-btn {
    padding: 10px 12px;
  }
}