/* ============================================================================
   blog.css — blog index, author profile, and article page styles.
   Loads after brand.css (tokens) + styles.css (shared components).
   ========================================================================== */

/* ---- Shared: avatars ----------------------------------------------------- */
.avatar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 999px;
  background: #eef4ff;
  color: var(--c-primary);
  font-weight: 800;
  font-size: 0.9rem;
  letter-spacing: 0.02em;
  flex: none;
  overflow: hidden;
}
.avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 999px;
}
.avatar--lg { width: 96px; height: 96px; font-size: 1.75rem; }

/* ---- Blog index ---------------------------------------------------------- */
.blog-hero {
  background: linear-gradient(180deg, var(--c-subtle), var(--c-surface));
  border-bottom: 1px solid var(--c-border);
  padding: var(--space-12) 0 var(--space-10);
}
/* Listing-page headline: smaller than the marketing-hero h1 so the title
   and lede read as one block instead of a billboard over a blank band. */
.blog-hero h1 {
  max-width: 30ch;
  margin-bottom: var(--space-4);
  font-size: clamp(2rem, 3.6vw, 3rem);
  line-height: 1.12;
  letter-spacing: -0.02em;
  text-wrap: balance;
}
.blog-hero .lede {
  max-width: 42rem;
  font-size: 1.125rem;
  color: var(--c-muted);
  margin: 0;
}

.blog-section { padding: var(--space-12) 0; }
.blog-section--subtle { background: var(--c-subtle); }
.blog-section__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}
.blog-section__head h2 { margin: 0; font-size: clamp(1.5rem, 2.4vw, 2rem); }

/* Featured (latest) post: a wide two-column card. */
.post-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  transition: border-color 0.15s ease, box-shadow 0.15s ease,
    transform 0.15s ease;
}
.post-card--clickable { cursor: pointer; }
.post-card--clickable .post-card__title a::after {
  content: "";
  position: absolute;
  inset: 0;
}
.post-card:hover {
  border-color: var(--c-primary);
  box-shadow: 0 14px 34px rgba(15, 23, 42, 0.08);
  transform: translateY(-2px);
}
.post-card--featured {
  padding: var(--space-8);
  border-width: 2px;
}
.post-card__kicker {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  align-items: center;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--c-muted);
  margin: 0;
}
.post-card__kicker .flag { color: var(--c-primary); }
.post-card__title { margin: 0; font-size: 1.25rem; line-height: 1.25; }
.post-card--featured .post-card__title { font-size: clamp(1.5rem, 2.6vw, 2.125rem); }
.post-card__title a { color: var(--c-ink); text-decoration: none; }
.post-card__title a:hover { color: var(--c-primary); }
.post-card__desc { margin: 0; color: var(--c-muted); }
.post-card__byline {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-top: auto;
  padding-top: var(--space-3);
  font-size: 0.875rem;
  color: var(--c-body);
}
.post-card__byline .avatar { width: 36px; height: 36px; font-size: 0.8rem; }
.post-card__byline a { position: relative; z-index: 1; color: var(--c-ink); font-weight: 700; text-decoration: none; }
.post-card__byline a:hover { color: var(--c-primary); }
.post-card__byline .when { color: var(--c-muted); }

.post-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(18rem, 1fr));
  gap: var(--space-5);
}

.blog-pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-5);
  margin-top: var(--space-8);
}
.blog-pagination__link {
  font-weight: 700;
  color: var(--c-ink);
  text-decoration: none;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  padding: var(--space-2) var(--space-4);
  transition: border-color 0.15s ease, color 0.15s ease;
}
.blog-pagination__link:hover { border-color: var(--c-primary); color: var(--c-primary); }
.blog-pagination__status { color: var(--c-muted); font-size: 0.9rem; }

/* Author strip on the index. */
.author-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(15rem, 1fr));
  gap: var(--space-5);
}
.author-tile {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  text-decoration: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.author-tile:hover {
  border-color: var(--c-primary);
  box-shadow: 0 10px 26px rgba(15, 23, 42, 0.07);
}
.author-tile h3 { margin: 0; font-size: 1.05rem; color: var(--c-ink); }
.author-tile .role { font-size: 0.85rem; color: var(--c-muted); }

/* ---- Author profile page ------------------------------------------------- */
.author-hero {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  flex-wrap: wrap;
  padding: var(--space-8) 0 var(--space-6);
  border-bottom: 1px solid var(--c-border);
  margin-bottom: var(--space-8);
}
.author-hero h1 { margin: 0 0 var(--space-1); font-size: clamp(2rem, 4vw, 3rem); }
.author-hero .role {
  display: block;
  font-weight: 700;
  color: var(--c-primary);
  margin-bottom: var(--space-2);
}
.author-hero .bio { max-width: 40rem; color: var(--c-body); margin: 0; }
.author-hero .links { margin-top: var(--space-2); font-size: 0.9rem; }

.author-posts .post-card + .post-card { margin-top: var(--space-4); }

/* ---- Article page -------------------------------------------------------- */
.article-header { margin-bottom: var(--space-6); }
.article-header .eyebrow { margin-bottom: var(--space-2); }
.article-header h1 { font-size: clamp(2rem, 4.5vw, 3rem); }

.byline {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-3);
  font-size: 0.9rem;
  color: var(--c-muted);
  margin: 0 0 var(--space-6);
}
.byline a { color: var(--c-ink); font-weight: 700; text-decoration: none; }
.byline a:hover { color: var(--c-primary); }
.byline .dot { color: var(--c-border); }

.article-hero-img {
  width: 100%;
  border-radius: var(--radius-lg);
  border: 1px solid var(--c-border);
  margin-bottom: var(--space-8);
  background: var(--c-subtle);
}

.prose h2 { font-size: 1.6rem; margin-top: var(--space-10); }
.prose h3 { margin-top: var(--space-8); }
.prose p, .prose li { font-size: 1.0625rem; }
.prose li { margin-bottom: var(--space-2); }
.prose blockquote {
  margin: var(--space-6) 0;
  padding: var(--space-2) var(--space-5);
  border-left: 3px solid var(--c-primary);
  color: var(--c-muted);
}
.prose code {
  background: var(--c-subtle);
  border: 1px solid var(--c-border);
  border-radius: 4px;
  padding: 0.1em 0.35em;
  font-size: 0.9em;
}

/* Author bio card at the end of an article. */
.author-card {
  display: flex;
  gap: var(--space-4);
  align-items: flex-start;
  background: var(--c-subtle);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  margin: var(--space-10) 0;
}
.author-card h2 {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.075em;
  text-transform: uppercase;
  color: var(--c-muted);
  margin: 0 0 var(--space-2);
}
.author-card .name { font-weight: 800; color: var(--c-ink); text-decoration: none; }
.author-card .name:hover { color: var(--c-primary); }
.author-card .role { font-size: 0.85rem; color: var(--c-muted); margin: 0 0 var(--space-2); }
.author-card p { margin: 0; font-size: 0.95rem; }

.related { border-top: 1px solid var(--c-border); padding-top: var(--space-8); }
.related h2 { font-size: 1.4rem; }
.related ul { list-style: none; margin: 0; padding: 0; }
.related li { margin-bottom: var(--space-4); }
.related h3 { margin: 0 0 var(--space-1); font-size: 1.05rem; }
.related .when { font-size: 0.85rem; color: var(--c-muted); }

@media (max-width: 40rem) {
  .blog-hero { padding: var(--space-8) 0 var(--space-6); }
  .blog-hero h1 { max-width: none; }
  .post-card--featured { padding: var(--space-6); }
}