/* ============================================================
   BLOG — Archive + Article typography
   PAM/ISTANBUL
   ============================================================ */

/* ---------- AI Studio accent styles ---------- */

/* Eyebrow label "PAM AI STUDIO" pulsing dot */
.blog-hero__meta .ai-eyebrow {
  color: var(--accent);
  font-weight: 700;
  letter-spacing: 0.22em;
  display: inline-flex;
  align-items: center;
  gap: 0.4em;
}
.blog-hero__meta .ai-eyebrow::before {
  content: "●";
  animation: ai-pulse 2s ease-in-out infinite;
}
@keyframes ai-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.25; }
}

/* Hero horizontal rule with gradient */
.blog-hero::after {
  content: "";
  display: block;
  margin-top: clamp(2rem, 4vh, 3.5rem);
  height: 1px;
  background: linear-gradient(90deg, var(--accent), transparent);
  opacity: 0.5;
}

/* Section heading highlight */
.blog-hero__title .hl {
  color: var(--accent);
  font-style: italic;
}

/* Post cards tagged AI: accent border + green tint */
.post-card[data-category="ai"] {
  border: 1px solid var(--accent);
  background: linear-gradient(135deg, rgba(var(--accent-rgb), 0.04) 0%, transparent 60%);
}

/* AI-LAB category badge */
.post-card__cat {
  /* base style kept; AI-LAB gets accent color via data-category on parent */
}
.post-card[data-category="ai"] .post-card__cat {
  color: var(--accent);
  border-color: var(--accent);
}

/* ---------- Blog Hero ---------- */
.blog-hero {
  padding: clamp(8rem, 14vh, 14rem) var(--sp-6) clamp(3rem, 6vh, 6rem);
  border-bottom: 1px solid var(--line);
  border-left: 3px solid var(--accent);
  position: relative;
}

.blog-hero__meta {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-muted);
  margin-bottom: var(--sp-4);
  display: flex;
  gap: var(--sp-4);
  flex-wrap: wrap;
}

.blog-hero__meta .acid { color: var(--accent); }

.blog-hero__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(3.2rem, 11vw, 10rem);
  line-height: 0.92;
  letter-spacing: -0.035em;
  margin-bottom: var(--sp-5);
  text-transform: uppercase;
}

.blog-hero__title .it {
  font-style: italic;
  font-weight: 400;
  color: var(--accent);
}

.blog-hero__title .stroke {
  -webkit-text-stroke: 1px var(--ink);
  color: transparent;
}

.blog-hero__lead {
  font-family: var(--font-body, 'Space Grotesk', sans-serif);
  font-size: clamp(1rem, 1.3vw, 1.25rem);
  line-height: 1.55;
  color: var(--ink-muted);
  max-width: 58ch;
  font-weight: 300;
}

/* ---------- Post Grid (archive) ---------- */
.blog-grid {
  padding: clamp(3rem, 6vh, 6rem) var(--sp-6) clamp(5rem, 10vh, 10rem);
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: var(--sp-5) var(--sp-4);
  border-bottom: 1px solid var(--line);
}

.blog-grid__index {
  grid-column: 1 / 3;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-muted);
  position: sticky;
  top: calc(var(--sp-6) + 3rem);
  align-self: start;
}

.blog-grid__list {
  grid-column: 3 / 13;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--sp-5) var(--sp-5);
}

.post-card {
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
  padding: var(--sp-5) 0;
  border-top: 1px solid var(--line);
  text-decoration: none;
  color: var(--ink);
  transition: transform .4s ease, opacity .3s ease;
}

.post-card:hover { transform: translateY(-4px); }
.post-card:hover .post-card__title { color: var(--accent); }

.post-card__meta {
  display: flex;
  gap: var(--sp-3);
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-muted);
}

.post-card__cat {
  color: var(--accent);
}

.post-card__sep { opacity: 0.4; }

.post-card__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.5rem, 2.4vw, 2.1rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
  transition: color .3s ease;
}

.post-card__excerpt {
  font-family: var(--font-body, 'Space Grotesk', sans-serif);
  font-size: 0.98rem;
  line-height: 1.55;
  color: var(--ink-muted);
  font-weight: 300;
  max-width: 55ch;
}

.post-card__cta {
  margin-top: var(--sp-2);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink);
  display: inline-flex;
  gap: 0.5rem;
  align-items: center;
}

.post-card__cta::after {
  content: '→';
  color: var(--accent);
}

/* Featured first card (span both cols) */
.post-card--featured {
  grid-column: 1 / -1;
  padding: var(--sp-6) 0;
}

.post-card--featured .post-card__title {
  font-size: clamp(2.2rem, 4.4vw, 4rem);
  max-width: 18ch;
}

.post-card--featured .post-card__excerpt {
  font-size: 1.1rem;
  max-width: 58ch;
}

/* ---------- Article page ---------- */
.article {
  padding: clamp(7rem, 12vh, 11rem) var(--sp-6) clamp(4rem, 8vh, 8rem);
  max-width: 1280px;
  margin: 0 auto;
}

.article__backlink {
  display: inline-flex;
  gap: 0.5rem;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-muted);
  text-decoration: none;
  margin-bottom: var(--sp-5);
  transition: color .3s ease;
}

.article__backlink::before { content: '←'; color: var(--accent); }
.article__backlink:hover { color: var(--accent); }

.article__meta {
  display: flex;
  gap: var(--sp-4);
  flex-wrap: wrap;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-muted);
  padding-bottom: var(--sp-3);
  border-bottom: 1px solid var(--line);
  margin-bottom: var(--sp-5);
}

.article__meta .cat { color: var(--accent); }

.article__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.4rem, 6vw, 5rem);
  line-height: 0.98;
  letter-spacing: -0.03em;
  margin-bottom: var(--sp-5);
  max-width: 18ch;
}

.article__lead {
  font-family: var(--font-body, 'Space Grotesk', sans-serif);
  font-size: clamp(1.15rem, 1.6vw, 1.5rem);
  line-height: 1.5;
  color: var(--ink);
  font-weight: 300;
  max-width: 60ch;
  margin-bottom: var(--sp-7);
  padding-bottom: var(--sp-6);
  border-bottom: 1px solid var(--line);
}

.article__body {
  max-width: 65ch;
  margin: 0 auto;
  font-family: var(--font-body, 'Space Grotesk', sans-serif);
  font-size: 1.05rem;
  line-height: 1.75;
  color: var(--ink);
  font-weight: 300;
}

.article__body > * + * { margin-top: 1.4em; }

.article__body p {
  color: var(--ink);
}

.article__body p strong { color: var(--ink); font-weight: 600; }
.article__body p em { font-style: italic; color: var(--accent); }

.article__body h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.6rem, 2.6vw, 2.3rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-top: 2.4em;
  margin-bottom: 0.6em;
  padding-top: 1.2em;
  border-top: 1px solid var(--line);
}

.article__body h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.2rem, 1.8vw, 1.5rem);
  line-height: 1.2;
  letter-spacing: -0.015em;
  margin-top: 2em;
  margin-bottom: 0.5em;
  color: var(--ink);
}

.article__body h4 {
  font-family: var(--font-mono);
  text-transform: uppercase;
  font-size: 0.8rem;
  letter-spacing: 0.2em;
  color: var(--accent);
  margin-top: 2em;
  margin-bottom: 0.5em;
}

.article__body ul,
.article__body ol {
  padding-left: 1.4em;
  color: var(--ink-muted);
}

.article__body li {
  margin-bottom: 0.6em;
  padding-left: 0.4em;
}

.article__body li::marker { color: var(--accent); }

.article__body blockquote {
  margin: 2em 0;
  padding: 1.5em 1.8em;
  border-left: 2px solid var(--accent);
  background: rgba(213, 255, 62, 0.04);
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.2rem;
  line-height: 1.4;
  color: var(--ink);
}

.article__body a {
  color: var(--accent);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.article__body code {
  font-family: var(--font-mono);
  font-size: 0.88em;
  background: rgba(255,255,255,0.06);
  padding: 0.15em 0.4em;
  border-radius: 2px;
}

.article__body table {
  width: 100%;
  border-collapse: collapse;
  margin: 2em 0;
  font-family: var(--font-mono);
  font-size: 0.82rem;
}

.article__body th,
.article__body td {
  text-align: left;
  padding: 0.9em 1em;
  border-bottom: 1px solid var(--line);
}

.article__body th {
  color: var(--accent);
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-size: 0.72rem;
}

.article__body td {
  color: var(--ink-muted);
  vertical-align: top;
}

/* Article footer navigation */
.article__foot {
  max-width: 65ch;
  margin: var(--sp-7) auto 0;
  padding-top: var(--sp-5);
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  gap: var(--sp-4);
  flex-wrap: wrap;
}

.article__foot a {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-muted);
  text-decoration: none;
  transition: color .3s ease;
}

.article__foot a:hover { color: var(--accent); }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .blog-grid { grid-template-columns: 1fr; }
  .blog-grid__index { position: static; grid-column: 1; margin-bottom: var(--sp-2); }
  .blog-grid__list { grid-column: 1; grid-template-columns: 1fr; gap: var(--sp-3); }
  .post-card--featured { grid-column: 1; }
  .article__body { font-size: 1rem; line-height: 1.7; }
  .article__body table { font-size: 0.75rem; }
  .article__body th, .article__body td { padding: 0.6em 0.5em; }
}