/* Blog index page styles — extends styles.css */

.blog-section { padding: 36px 0 56px; position: relative; z-index: 1; }

.blog-head {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: end;
  margin-bottom: 36px;
}
@media (max-width: 860px) { .blog-head { grid-template-columns: 1fr; gap: 18px; } }

.blog-head h1 {
  font-size: clamp(40px, 6vw, 64px);
  line-height: 1.02;
  letter-spacing: -0.03em;
  margin: 0;
  font-weight: 400;
}
.blog-head h1 em {
  font-style: normal;
  color: var(--ink-3);
  font-weight: 400;
}
.blog-head .lead {
  color: var(--ink-2);
  font-size: 15.5px;
  line-height: 1.55;
  max-width: 460px;
}

/* Category filter chips */
.cat-bar {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 28px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line-soft);
}
.cat-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--ink-2);
  font-size: 13px;
  cursor: pointer;
  transition: all 140ms;
  font-family: "Geist", sans-serif;
}
.cat-chip:hover { color: var(--ink); border-color: var(--ink-3); }
.cat-chip.active {
  background: var(--ink);
  color: var(--bg);
  border-color: var(--ink);
}
.cat-chip .count {
  font-family: "Geist Mono", monospace;
  font-size: 11px;
  color: var(--ink-4);
  background: var(--surface-2);
  padding: 1px 6px;
  border-radius: 999px;
  border: 1px solid var(--line-soft);
}
.cat-chip.active .count {
  color: var(--bg);
  background: color-mix(in oklab, var(--bg), transparent 80%);
  border-color: transparent;
}

/* Featured (first) article */
.featured-card {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 0;
  background: var(--surface);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: 32px;
  text-decoration: none;
  color: inherit;
  transition: border-color 160ms, transform 160ms;
}
.featured-card:hover { border-color: var(--accent-edge); transform: translateY(-2px); }
@media (max-width: 860px) { .featured-card { grid-template-columns: 1fr; } }

.featured-thumb {
  position: relative;
  min-height: 320px;
  background:
    radial-gradient(60% 80% at 30% 30%, color-mix(in oklab, var(--accent), transparent 70%), transparent 60%),
    radial-gradient(50% 70% at 80% 80%, color-mix(in oklab, var(--accent), transparent 84%), transparent 60%),
    var(--surface-2);
  overflow: hidden;
}
.featured-thumb::after {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 32px 32px;
  mask-image: radial-gradient(60% 60% at 50% 50%, black, transparent);
  opacity: 0.6;
}
.featured-thumb .thumb-mark {
  position: absolute;
  top: 24px; left: 24px;
  font-family: "Geist Mono", monospace;
  font-size: 11px;
  color: var(--ink-3);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  z-index: 1;
}
.featured-thumb .thumb-glyph {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  z-index: 1;
}
.featured-thumb .thumb-glyph svg {
  width: 110px; height: 110px;
  color: var(--accent);
  opacity: 0.85;
  filter: drop-shadow(0 8px 24px var(--accent-edge));
}

.featured-body {
  padding: 36px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 14px;
}
.featured-body .meta-row {
  display: flex; align-items: center; gap: 12px;
  font-family: "Geist Mono", monospace;
  font-size: 11.5px;
  color: var(--ink-3);
  letter-spacing: 0.04em;
}
.featured-body .cat-tag {
  padding: 3px 8px;
  border-radius: 6px;
  background: var(--accent-soft);
  border: 1px solid var(--accent-edge);
  color: var(--ink);
  text-transform: uppercase;
  font-size: 10.5px;
}
.featured-body h2 {
  font-size: clamp(24px, 2.5vw, 32px);
  line-height: 1.18;
  letter-spacing: -0.02em;
  margin: 0;
  font-weight: 500;
  text-wrap: balance;
}
.featured-body p {
  color: var(--ink-2);
  font-size: 15px;
  line-height: 1.55;
  margin: 0;
  max-width: 52ch;
}
.featured-body .read-more {
  display: inline-flex; align-items: center; gap: 8px;
  color: var(--accent);
  font-size: 13.5px;
  margin-top: 6px;
  font-weight: 500;
}

/* Grid of remaining posts */
.posts-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
@media (max-width: 980px) { .posts-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .posts-grid { grid-template-columns: 1fr; } }

.post-card {
  background: var(--surface);
  border: 1px solid var(--line-soft);
  border-radius: 14px;
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
  transition: border-color 160ms, transform 160ms;
}
.post-card:hover { border-color: var(--accent-edge); transform: translateY(-2px); }

.post-thumb {
  position: relative;
  height: 160px;
  background:
    radial-gradient(70% 80% at 30% 30%, color-mix(in oklab, var(--accent), transparent 80%), transparent 60%),
    var(--surface-2);
  border-bottom: 1px solid var(--line-soft);
  overflow: hidden;
}
.post-thumb::after {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 24px 24px;
  mask-image: radial-gradient(50% 60% at 50% 50%, black, transparent);
  opacity: 0.5;
}
.post-thumb .glyph {
  position: absolute; inset: 0; display: grid; place-items: center; z-index: 1;
}
.post-thumb .glyph svg {
  width: 56px; height: 56px;
  color: var(--accent);
  opacity: 0.9;
  filter: drop-shadow(0 4px 12px var(--accent-edge));
}
.post-thumb .post-num {
  position: absolute;
  top: 12px; right: 14px;
  font-family: "Geist Mono", monospace;
  font-size: 10.5px;
  color: var(--ink-3);
  letter-spacing: 0.08em;
  z-index: 1;
}

.post-body {
  padding: 18px 18px 20px;
  display: flex; flex-direction: column;
  gap: 8px;
  flex: 1;
}
.post-body .meta-row {
  display: flex; align-items: center; gap: 10px;
  font-family: "Geist Mono", monospace;
  font-size: 10.5px;
  color: var(--ink-3);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.post-body .cat-tag {
  padding: 2px 7px;
  border-radius: 5px;
  background: var(--surface-2);
  border: 1px solid var(--line);
  font-size: 10px;
  color: var(--ink-2);
}
.post-body h3 {
  font-size: 16.5px;
  line-height: 1.28;
  letter-spacing: -0.012em;
  margin: 4px 0 0;
  font-weight: 500;
  text-wrap: balance;
}
.post-body p {
  color: var(--ink-3);
  font-size: 13.5px;
  line-height: 1.5;
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.post-body .read-more {
  margin-top: auto;
  padding-top: 12px;
  display: inline-flex; align-items: center; gap: 6px;
  color: var(--ink-2);
  font-size: 12.5px;
  font-weight: 500;
}
.post-card:hover .post-body .read-more { color: var(--accent); }

.empty-state {
  text-align: center;
  padding: 80px 20px;
  color: var(--ink-3);
  font-size: 14px;
  border: 1px dashed var(--line);
  border-radius: 14px;
  background: var(--surface);
}

/* Newsletter strip */
.newsletter-strip {
  margin-top: 56px;
  padding: 28px;
  background: var(--surface);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-lg);
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 28px;
  align-items: center;
  position: relative;
  overflow: hidden;
}
.newsletter-strip::before {
  content: "";
  position: absolute; inset: 0;
  background: radial-gradient(60% 80% at 100% 50%, color-mix(in oklab, var(--accent), transparent 88%), transparent 60%);
  pointer-events: none;
}
@media (max-width: 760px) { .newsletter-strip { grid-template-columns: 1fr; } }
.newsletter-strip h3 {
  margin: 0 0 6px;
  font-size: 22px;
  letter-spacing: -0.015em;
  font-weight: 500;
}
.newsletter-strip p { margin: 0; color: var(--ink-3); font-size: 13.5px; line-height: 1.55; }
.newsletter-form {
  display: flex; gap: 8px;
  position: relative;
}
.newsletter-form input {
  flex: 1;
  padding: 12px 14px;
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: 10px;
  color: var(--ink);
  font-family: inherit;
  font-size: 14px;
}
.newsletter-form input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.newsletter-form button {
  padding: 12px 18px;
  background: var(--ink);
  color: var(--bg);
  border: none;
  border-radius: 10px;
  font-weight: 500;
  font-size: 13.5px;
  cursor: pointer;
  font-family: inherit;
}