/* ─────────────────────────────────────
   CatVerse Lab – Shared Stylesheet
   Used by: blog list, blog post, and
   any other server-rendered page
───────────────────────────────────── */

:root {
  --cream: #fbf1e0;
  --cream-dark: #f0e3c8;
  --cream-mid: #f5e9ce;
  --warm-brown: #5c3d1e;
  --soft-brown: #a0714a;
  --light-brown: #c9956a;
  --accent-terracotta: #c96a3a;
  --accent-sage: #7a9e7e;
  --accent-sage-light: #b8d4bb;
  --text-primary: #2e1f0e;
  --text-secondary: #7a5c3a;
  --text-muted: #b09070;
  --white: #ffffff;
  --font-display: 'DM Serif Display', Georgia, serif;
  --font-body: 'DM Sans', system-ui, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background-color: var(--cream);
  color: var(--text-primary);
  overflow-x: hidden;
}

/* ── NAV ── */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 5vw;
  height: 68px;
  background: rgba(251,241,224,0.88);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(160,113,74,0.12);
}
.nav-logo {
  display: flex; align-items: center; gap: 10px;
  text-decoration: none;
}
.nav-logo img {
  width: 36px; height: 36px; border-radius: 10px;
  object-fit: cover;
}
.nav-logo-text {
  font-family: var(--font-display);
  font-size: 1.25rem;
  color: var(--warm-brown);
  letter-spacing: -0.01em;
}
.nav-links {
  display: flex; align-items: center; gap: 2rem;
  list-style: none;
}
.nav-links a {
  font-size: 0.875rem; font-weight: 400;
  color: var(--text-secondary);
  text-decoration: none;
  letter-spacing: 0.01em;
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--warm-brown); }

/* ── PAGE HERO (blog list + post) ── */
.page-hero {
  padding: 120px 5vw 60px;
  max-width: 860px;
  margin: 0 auto;
}
.page-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 4vw, 3.2rem);
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--warm-brown);
  margin-bottom: 0.75rem;
}
.page-hero h1 em { font-style: italic; color: var(--accent-terracotta); }
.page-hero-sub {
  font-size: 1rem; font-weight: 300;
  line-height: 1.7; color: var(--text-secondary);
  max-width: 520px;
}
.badge {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--accent-sage-light);
  color: var(--accent-sage);
  font-size: 0.72rem; font-weight: 500;
  padding: 5px 14px;
  border-radius: 100px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 1.25rem;
}

/* ── BLOG GRID (list page) ── */
.blog-grid-container {
  max-width: 860px;
  margin: 0 auto;
  padding: 0 5vw 100px;
}
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
  background: transparent;
  border-radius: 0;
  overflow: visible;
}

/* ── POST CARD ── */
.post-card {
  background: var(--cream-dark);
  border-radius: 20px;
  border: 1px solid rgba(160,113,74,0.12);
  text-decoration: none;
  display: block;
  overflow: hidden;
  transition: background 0.2s, transform 0.25s, box-shadow 0.25s;
}
.post-card:hover {
  background: var(--cream-mid);
  text-decoration: none;
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(92,61,30,0.1);
}

/* Card cover image */
.post-card-cover {
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
}
.post-card-cover img {
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.4s ease;
}
.post-card:hover .post-card-cover img {
  transform: scale(1.04);
}
.post-card-cover--placeholder {
  background: var(--cream-mid);
  border-bottom: 1px solid rgba(160,113,74,0.08);
}

.post-card-inner {
  padding: 1.5rem 1.75rem 2rem;
}
.post-card-meta {
  font-size: 0.75rem; font-weight: 400;
  color: var(--text-muted);
  letter-spacing: 0.03em;
  margin-bottom: 0.6rem;
  text-transform: uppercase;
}
.post-card-title {
  font-family: var(--font-display);
  font-size: 1.2rem; font-weight: 400;
  color: var(--warm-brown);
  line-height: 1.3;
  letter-spacing: -0.01em;
  margin-bottom: 0.75rem;
}
.post-card-excerpt {
  font-size: 0.875rem; font-weight: 300;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 1.25rem;
}
.post-card-read {
  font-size: 0.8rem; font-weight: 500;
  color: var(--accent-terracotta);
  letter-spacing: 0.01em;
}
.blog-empty {
  padding: 3rem;
  font-size: 1rem; font-weight: 300;
  color: var(--text-muted);
  text-align: center;
}

/* ── BLOG POST: cover image below hero ── */
.post-cover-wrap {
  max-width: 720px;
  margin: 0 auto 0;
  padding: 0 5vw;
}
.post-cover-img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: 20px;
  display: block;
  box-shadow: 0 8px 32px rgba(92,61,30,0.12);
}

/* ── BLOG POST (single page) ── */
.post-hero { padding-bottom: 40px; }
.post-date-display {
  font-size: 0.82rem; font-weight: 300;
  color: var(--text-muted);
  letter-spacing: 0.03em;
  text-transform: uppercase;
  margin-top: 0.5rem;
}
.post-container {
  max-width: 720px;
  margin: 0 auto;
  padding: 2.5rem 5vw 100px;
}
.post-body {
  font-size: 1rem; font-weight: 300;
  line-height: 1.85;
  color: var(--text-secondary);
}

/* Post body typography */
.post-body h2 {
  font-family: var(--font-display);
  font-size: 1.5rem; font-weight: 400;
  color: var(--warm-brown);
  letter-spacing: -0.01em;
  margin: 2.5rem 0 0.75rem;
}
.post-body h3 {
  font-family: var(--font-display);
  font-size: 1.15rem; font-weight: 400;
  color: var(--warm-brown);
  margin: 2rem 0 0.5rem;
}
.post-body p { margin-bottom: 1.25rem; }
.post-body strong { color: var(--warm-brown); font-weight: 500; }
.post-body em { font-style: italic; }
.post-body a {
  color: var(--accent-terracotta);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  transition: opacity 0.2s;
}
.post-body a:hover { opacity: 0.75; }
.post-body ul, .post-body ol {
  padding-left: 1.5rem;
  margin-bottom: 1.25rem;
}
.post-body li { margin-bottom: 0.5rem; }
.post-body hr {
  border: none;
  border-top: 1px solid rgba(160,113,74,0.18);
  margin: 2.5rem 0;
}
.post-body blockquote {
  border-left: 3px solid var(--accent-terracotta);
  padding: 0.75rem 1.25rem;
  margin: 1.5rem 0;
  background: var(--cream-dark);
  border-radius: 0 10px 10px 0;
  font-style: italic;
  color: var(--soft-brown);
}
.post-body code {
  font-family: monospace;
  font-size: 0.88em;
  background: var(--cream-dark);
  padding: 2px 6px;
  border-radius: 4px;
  color: var(--warm-brown);
}

/* Inline images inside post body */
.post-body img {
  width: 100%;
  border-radius: 16px;
  display: block;
  margin: 2rem 0;
  box-shadow: 0 4px 20px rgba(92,61,30,0.1);
  object-fit: cover;
}
.post-body img + em {
  display: block;
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: -1.25rem;
  margin-bottom: 2rem;
  font-style: normal;
}

/* Post navigation */
.post-footer-nav {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(160,113,74,0.15);
}
.back-link {
  font-size: 0.875rem; font-weight: 400;
  color: var(--text-secondary);
  text-decoration: none;
  letter-spacing: 0.01em;
  transition: color 0.2s;
}
.back-link:hover { color: var(--warm-brown); }

/* ── FOOTER ── */
.footer {
  border-top: 1px solid rgba(160,113,74,0.15);
  padding: 32px 5vw;
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 1rem;
}
.footer .logo-txt {
  font-family: var(--font-display);
  font-size: 1rem; color: var(--warm-brown);
}
.footer-links {
  display: flex; gap: 1.5rem; list-style: none;
}
.footer-links a {
  font-size: 0.8rem; font-weight: 300;
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.2s;
}
.footer-links a:hover { color: var(--warm-brown); }
.footer .copy {
  font-size: 0.78rem; color: var(--text-muted); font-weight: 300;
}

/* ── RESPONSIVE ── */
@media (max-width: 600px) {
  .nav-links { display: none; }
  .blog-grid { grid-template-columns: 1fr; }
  .footer { flex-direction: column; text-align: center; }
  .post-cover-wrap { padding: 0 4vw; }
  .post-cover-img { border-radius: 14px; }
}