/* ============================================================
   OVERDIGITAL.AI — Design System
   Aesthetic: Dark editorial, typographically-led, AI-forward
   Fonts: Syne (display) + Lora (body) + JetBrains Mono (code)
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Syne:wght@400;500;600;700;800&family=Lora:ital,wght@0,400;0,500;0,600;1,400;1,500&family=JetBrains+Mono:wght@400;500&display=swap');

/* ── Variables ─────────────────────────────────────────────── */
:root {
  --bg:        #0a0a0a;
  --bg-2:      #111111;
  --bg-3:      #1a1a1a;
  --bg-4:      #222222;
  --border:    #222222;
  --border-2:  #2e2e2e;
  --text:      #e8e8e8;
  --text-2:    #999999;
  --text-3:    #555555;
  --accent:    #00d4ff;
  --accent-dim: rgba(0, 212, 255, 0.12);
  --accent-glow: rgba(0, 212, 255, 0.25);
  --red:       #ff4444;
  --yellow:    #f5a623;
  --green:     #00c853;

  --font-display: 'Syne', sans-serif;
  --font-body:    'Lora', Georgia, serif;
  --font-mono:    'JetBrains Mono', 'Fira Code', monospace;

  --radius:    4px;
  --radius-lg: 8px;
  --max-w:     1200px;
  --prose-w:   720px;

  --transition: 0.18s ease;
}

[data-theme="light"] {
  --bg:        #fafaf8;
  --bg-2:      #f2f2ef;
  --bg-3:      #e8e8e4;
  --bg-4:      #dededa;
  --border:    #ddddd8;
  --border-2:  #ccccca;
  --text:      #111111;
  --text-2:    #555555;
  --text-3:    #999999;
  --accent:    #0099cc;
  --accent-dim: rgba(0, 153, 204, 0.1);
  --accent-glow: rgba(0, 153, 204, 0.2);
}

/* ── Reset ─────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.7;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: background var(--transition), color var(--transition);
}

img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { cursor: pointer; border: none; background: none; font: inherit; color: inherit; }
input, textarea, select { font: inherit; color: inherit; }
::selection { background: var(--accent); color: #000; }

/* ── Utilities ─────────────────────────────────────────────── */
.container  { width: 100%; max-width: var(--max-w); margin: 0 auto; padding: 0 24px; }
.sr-only    { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; }

/* ── Noise texture overlay ─────────────────────────────────── */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.03'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 0;
  opacity: 0.4;
}

/* ════════════════════════════════════════════════════════════
   HEADER
   ════════════════════════════════════════════════════════════ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 10, 10, 0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  transition: background var(--transition);
}

[data-theme="light"] .site-header {
  background: rgba(250, 250, 248, 0.88);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}

.site-logo {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 8px;
}

.site-logo-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  display: inline-block;
  box-shadow: 0 0 8px var(--accent-glow);
  animation: pulse-dot 3s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; box-shadow: 0 0 8px var(--accent-glow); }
  50%       { opacity: 0.6; box-shadow: 0 0 2px var(--accent-glow); }
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.site-nav a {
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-2);
  padding: 6px 12px;
  border-radius: var(--radius);
  transition: color var(--transition), background var(--transition);
}

.site-nav a:hover,
.site-nav a.active {
  color: var(--text);
  background: var(--bg-3);
}

.header-controls {
  display: flex;
  align-items: center;
  gap: 8px;
}

.theme-toggle {
  width: 36px;
  height: 36px;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-2);
  transition: color var(--transition), background var(--transition);
}

.theme-toggle:hover { color: var(--text); background: var(--bg-3); }

.theme-toggle svg { width: 16px; height: 16px; }

.mobile-menu-btn {
  display: none;
  width: 36px;
  height: 36px;
  border-radius: var(--radius);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  color: var(--text-2);
}

.mobile-menu-btn span {
  display: block;
  width: 18px;
  height: 1.5px;
  background: currentColor;
  transition: transform 0.2s, opacity 0.2s;
}

.mobile-menu-btn.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.mobile-menu-btn.open span:nth-child(2) { opacity: 0; }
.mobile-menu-btn.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* ════════════════════════════════════════════════════════════
   HOMEPAGE HERO
   ════════════════════════════════════════════════════════════ */
.hero {
  padding: 80px 0 64px;
  border-bottom: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}

.hero::after {
  content: '';
  position: absolute;
  top: -40%;
  right: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, var(--accent-dim) 0%, transparent 70%);
  pointer-events: none;
}

.hero-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.hero-label::before {
  content: '';
  display: block;
  width: 24px;
  height: 1px;
  background: var(--accent);
}

.hero-headline {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 6vw, 5rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.0;
  color: var(--text);
  max-width: 14ch;
  margin-bottom: 24px;
}

.hero-tagline {
  font-size: 1.125rem;
  color: var(--text-2);
  max-width: 480px;
  line-height: 1.6;
  margin-bottom: 48px;
}

.hero-featured {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
  padding-top: 48px;
  border-top: 1px solid var(--border);
}

.hero-featured-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.hero-featured-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-3);
}

.hero-featured-title {
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 2.5vw, 2rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin-bottom: 12px;
  color: var(--text);
  transition: color var(--transition);
}

.hero-featured-title:hover { color: var(--accent); }

.hero-featured-excerpt {
  color: var(--text-2);
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 20px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.hero-featured-img {
  border-radius: var(--radius-lg);
  aspect-ratio: 16/10;
  object-fit: cover;
  width: 100%;
  border: 1px solid var(--border);
}

.hero-featured-img-placeholder {
  border-radius: var(--radius-lg);
  aspect-ratio: 16/10;
  background: var(--bg-3);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-3);
  letter-spacing: 0.08em;
}

/* ════════════════════════════════════════════════════════════
   CATEGORY FILTER PILLS
   ════════════════════════════════════════════════════════════ */
.filter-bar {
  padding: 24px 0;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.filter-pill {
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 6px 14px;
  border-radius: 100px;
  border: 1px solid var(--border);
  color: var(--text-2);
  transition: all var(--transition);
  white-space: nowrap;
}

.filter-pill:hover {
  border-color: var(--border-2);
  color: var(--text);
  background: var(--bg-3);
}

.filter-pill.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #000;
  font-weight: 600;
}

/* ════════════════════════════════════════════════════════════
   POST GRID
   ════════════════════════════════════════════════════════════ */
.section-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  padding: 40px 0 24px;
}

.section-title {
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-3);
}

.posts-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: 40px;
}

.post-card {
  background: var(--bg);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: background var(--transition);
  position: relative;
}

.post-card:hover { background: var(--bg-2); }

.post-card-image {
  border-radius: var(--radius);
  aspect-ratio: 16/9;
  object-fit: cover;
  width: 100%;
  margin-bottom: 4px;
}

.post-card-image-placeholder {
  border-radius: var(--radius);
  aspect-ratio: 16/9;
  background: var(--bg-3);
  width: 100%;
  margin-bottom: 4px;
}

.post-card-meta {
  display: flex;
  align-items: center;
  gap: 10px;
}

.category-badge {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  padding: 3px 8px;
  background: var(--accent-dim);
  border-radius: 3px;
}

.post-date {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-3);
  letter-spacing: 0.04em;
}

.post-card-title {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.3;
  color: var(--text);
  transition: color var(--transition);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.post-card:hover .post-card-title { color: var(--accent); }

.post-card-excerpt {
  font-size: 0.875rem;
  color: var(--text-2);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  flex: 1;
}

.post-card-arrow {
  color: var(--text-3);
  font-size: 0.8rem;
  align-self: flex-end;
  transition: color var(--transition), transform var(--transition);
}

.post-card:hover .post-card-arrow {
  color: var(--accent);
  transform: translate(3px, -3px);
}

/* ════════════════════════════════════════════════════════════
   PAGINATION
   ════════════════════════════════════════════════════════════ */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  padding: 40px 0;
}

.pagination a,
.pagination span {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  color: var(--text-2);
  transition: all var(--transition);
}

.pagination a:hover { border-color: var(--border-2); color: var(--text); background: var(--bg-3); }
.pagination .current { background: var(--accent); border-color: var(--accent); color: #000; font-weight: 600; }
.pagination .ellipsis { border: none; color: var(--text-3); }
.pagination .prev, .pagination .next { width: auto; padding: 0 12px; gap: 6px; font-size: 0.75rem; letter-spacing: 0.05em; }

/* ════════════════════════════════════════════════════════════
   ARTICLE PAGE
   ════════════════════════════════════════════════════════════ */
.article-header {
  padding: 64px 0 48px;
  border-bottom: 1px solid var(--border);
}

.article-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-3);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 32px;
}

.article-breadcrumb a { transition: color var(--transition); }
.article-breadcrumb a:hover { color: var(--text-2); }
.article-breadcrumb span { color: var(--text-3); }

.article-meta-top {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.article-title {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 4vw, 3.25rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
  color: var(--text);
  max-width: var(--prose-w);
  margin-bottom: 20px;
}

.article-excerpt {
  font-size: 1.125rem;
  color: var(--text-2);
  line-height: 1.6;
  max-width: var(--prose-w);
  margin-bottom: 24px;
  font-style: italic;
}

.article-date-byline {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-3);
  letter-spacing: 0.04em;
}

.article-featured-image {
  width: 100%;
  max-width: var(--prose-w);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  margin-top: 40px;
  aspect-ratio: 16/7;
  object-fit: cover;
}

/* Article body prose */
.article-body {
  padding: 48px 0;
}

.prose {
  max-width: var(--prose-w);
  font-size: 1.0625rem;
  line-height: 1.8;
  color: var(--text);
}

.prose h1, .prose h2, .prose h3, .prose h4, .prose h5, .prose h6 {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
  color: var(--text);
  margin-top: 2.5em;
  margin-bottom: 0.75em;
}

.prose h1 { font-size: 2rem; }
.prose h2 { font-size: 1.5rem; border-bottom: 1px solid var(--border); padding-bottom: 0.5em; }
.prose h3 { font-size: 1.2rem; }
.prose h4 { font-size: 1rem; color: var(--text-2); }
.prose h5, .prose h6 { font-size: 0.9rem; color: var(--text-2); font-style: italic; }

.prose p { margin-bottom: 1.5em; }

.prose a { color: var(--accent); border-bottom: 1px solid var(--accent-dim); transition: border-color var(--transition); }
.prose a:hover { border-color: var(--accent); }

.prose strong { font-weight: 600; color: var(--text); }
.prose em { font-style: italic; }

.prose ul, .prose ol {
  margin-bottom: 1.5em;
  padding-left: 1.5em;
}

.prose ul { list-style: none; }
.prose ul li { position: relative; padding-left: 0.5em; margin-bottom: 0.5em; }
.prose ul li::before {
  content: '—';
  position: absolute;
  left: -1.2em;
  color: var(--accent);
  font-family: var(--font-mono);
}

.prose ol { list-style: decimal; }
.prose ol li { margin-bottom: 0.5em; padding-left: 0.25em; }

.prose blockquote {
  border-left: 3px solid var(--accent);
  margin: 2em 0;
  padding: 1em 1.5em;
  background: var(--bg-2);
  border-radius: 0 var(--radius) var(--radius) 0;
  font-style: italic;
  color: var(--text-2);
}

.prose blockquote p { margin-bottom: 0; }

.prose code {
  font-family: var(--font-mono);
  font-size: 0.85em;
  background: var(--bg-3);
  color: var(--accent);
  padding: 0.15em 0.4em;
  border-radius: 3px;
  border: 1px solid var(--border);
}

.prose pre {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5em;
  overflow-x: auto;
  margin: 2em 0;
  position: relative;
}

.prose pre code {
  background: none;
  border: none;
  padding: 0;
  font-size: 0.875rem;
  color: var(--text);
  line-height: 1.6;
}

.prose hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 3em 0;
}

.prose img {
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  width: 100%;
  margin: 2em 0;
}

.prose table {
  width: 100%;
  border-collapse: collapse;
  margin: 2em 0;
  font-size: 0.9rem;
}

.prose th {
  font-family: var(--font-display);
  font-weight: 600;
  text-align: left;
  padding: 10px 14px;
  border-bottom: 2px solid var(--border-2);
  color: var(--text-2);
  font-size: 0.8rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.prose td {
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
}

.prose tr:last-child td { border-bottom: none; }

/* Post tags */
.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 32px 0;
  border-top: 1px solid var(--border);
  max-width: var(--prose-w);
}

.tag-chip {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  padding: 5px 10px;
  border: 1px solid var(--border);
  border-radius: 3px;
  color: var(--text-2);
  transition: all var(--transition);
}

.tag-chip:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-dim);
}

/* Related posts */
.related-posts {
  padding: 48px 0;
  border-top: 1px solid var(--border);
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 24px;
}

/* ════════════════════════════════════════════════════════════
   ARCHIVE PAGE
   ════════════════════════════════════════════════════════════ */
.archive-header {
  padding: 56px 0 32px;
  border-bottom: 1px solid var(--border);
}

.page-title {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3.5vw, 2.75rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--text);
  margin-bottom: 12px;
}

.page-subtitle {
  color: var(--text-2);
  font-size: 0.95rem;
  max-width: 520px;
}

/* Search bar */
.archive-search {
  padding: 24px 0;
  border-bottom: 1px solid var(--border);
}

.search-form {
  display: flex;
  gap: 8px;
  max-width: 480px;
}

.search-input {
  flex: 1;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px 14px;
  font-family: var(--font-display);
  font-size: 0.875rem;
  color: var(--text);
  transition: border-color var(--transition);
  outline: none;
}

.search-input::placeholder { color: var(--text-3); }
.search-input:focus { border-color: var(--accent); }

.search-btn {
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px 16px;
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--text);
  transition: all var(--transition);
}

.search-btn:hover { background: var(--bg-4); border-color: var(--border-2); }

/* Archive list */
.archive-list {
  padding: 24px 0;
}

.archive-item {
  display: grid;
  grid-template-columns: 120px 1fr auto;
  gap: 20px;
  align-items: baseline;
  padding: 16px 0;
  border-bottom: 1px solid var(--border);
  transition: background var(--transition);
}

.archive-item:hover { background: var(--bg-2); margin: 0 -24px; padding: 16px 24px; }

.archive-item-date {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-3);
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.archive-item-title {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--text);
  transition: color var(--transition);
  line-height: 1.4;
}

.archive-item:hover .archive-item-title { color: var(--accent); }

.archive-item-cat {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-3);
  white-space: nowrap;
}

/* ════════════════════════════════════════════════════════════
   ARCHIVE ARTICLE — Banner
   ════════════════════════════════════════════════════════════ */
.archive-banner {
  background: var(--bg-2);
  border-bottom: 1px solid var(--border);
  padding: 12px 0;
}

.archive-banner-inner {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-3);
  letter-spacing: 0.04em;
}

.archive-banner-icon {
  width: 20px;
  height: 20px;
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: 3px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.6rem;
  flex-shrink: 0;
}

.archive-banner a { color: var(--accent); transition: opacity var(--transition); }
.archive-banner a:hover { opacity: 0.8; }

/* ════════════════════════════════════════════════════════════
   TAG PAGE
   ════════════════════════════════════════════════════════════ */
.tag-header {
  padding: 56px 0 32px;
  border-bottom: 1px solid var(--border);
}

.tag-display {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
}

.tag-hash {
  font-family: var(--font-mono);
  font-size: 2rem;
  color: var(--accent);
  font-weight: 400;
}

.tag-name {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2.5rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--text);
}

/* ════════════════════════════════════════════════════════════
   FOOTER
   ════════════════════════════════════════════════════════════ */
.site-footer {
  margin-top: auto;
  border-top: 1px solid var(--border);
  padding: 48px 0 32px;
  background: var(--bg-2);
}

.footer-inner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 48px;
  margin-bottom: 40px;
}

.footer-brand p {
  color: var(--text-2);
  font-size: 0.875rem;
  line-height: 1.6;
  max-width: 320px;
  margin-top: 10px;
}

.footer-links {
  display: flex;
  gap: 48px;
}

.footer-links-group h4 {
  font-family: var(--font-display);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-3);
  margin-bottom: 14px;
}

.footer-links-group ul {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-links-group a {
  font-size: 0.875rem;
  color: var(--text-2);
  transition: color var(--transition);
}

.footer-links-group a:hover { color: var(--text); }

.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-copy {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-3);
  letter-spacing: 0.04em;
}

/* ════════════════════════════════════════════════════════════
   BUTTONS & LINKS
   ════════════════════════════════════════════════════════════ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 10px 18px;
  border-radius: var(--radius);
  border: 1px solid transparent;
  transition: all var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: var(--accent);
  color: #000;
  border-color: var(--accent);
}

.btn-primary:hover { opacity: 0.88; }

.btn-secondary {
  background: transparent;
  color: var(--text-2);
  border-color: var(--border);
}

.btn-secondary:hover {
  border-color: var(--border-2);
  color: var(--text);
  background: var(--bg-3);
}

.read-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  transition: gap var(--transition);
}

.read-more:hover { gap: 10px; }
.read-more::after { content: '→'; }

/* ════════════════════════════════════════════════════════════
   404 / 500 ERROR PAGES
   ════════════════════════════════════════════════════════════ */
.error-page {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 80px 24px;
  text-align: center;
}

.error-code {
  font-family: var(--font-mono);
  font-size: clamp(5rem, 15vw, 10rem);
  font-weight: 400;
  color: var(--bg-4);
  line-height: 1;
  display: block;
  margin-bottom: 8px;
  letter-spacing: -0.05em;
}

.error-title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

.error-message {
  color: var(--text-2);
  font-size: 0.95rem;
  max-width: 360px;
  margin: 0 auto 32px;
}

/* ════════════════════════════════════════════════════════════
   ADMIN NOTICE (shared pages with admin context)
   ════════════════════════════════════════════════════════════ */
.admin-bar {
  background: #1a0a00;
  border-bottom: 1px solid #3a1a00;
  padding: 8px 0;
}

.admin-bar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--yellow);
  letter-spacing: 0.06em;
}

.admin-bar a { color: var(--yellow); text-decoration: underline; }

/* ════════════════════════════════════════════════════════════
   EMPTY STATES
   ════════════════════════════════════════════════════════════ */
.empty-state {
  text-align: center;
  padding: 80px 24px;
  color: var(--text-3);
}

.empty-state-icon {
  font-size: 2.5rem;
  margin-bottom: 16px;
  opacity: 0.4;
}

.empty-state h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-2);
  margin-bottom: 8px;
}

.empty-state p { font-size: 0.875rem; line-height: 1.6; }

/* ════════════════════════════════════════════════════════════
   SCROLL TO TOP
   ════════════════════════════════════════════════════════════ */
.scroll-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 40px;
  height: 40px;
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-2);
  opacity: 0;
  transform: translateY(12px);
  transition: all var(--transition);
  pointer-events: none;
  z-index: 50;
}

.scroll-top.visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.scroll-top:hover { color: var(--text); border-color: var(--border-2); }

/* ════════════════════════════════════════════════════════════
   ANIMATIONS
   ════════════════════════════════════════════════════════════ */
@keyframes fade-up {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

.anim-fade-up {
  animation: fade-up 0.5s ease forwards;
}

.anim-delay-1 { animation-delay: 0.05s; opacity: 0; }
.anim-delay-2 { animation-delay: 0.1s;  opacity: 0; }
.anim-delay-3 { animation-delay: 0.15s; opacity: 0; }
.anim-delay-4 { animation-delay: 0.2s;  opacity: 0; }

/* ════════════════════════════════════════════════════════════
   RESPONSIVE
   ════════════════════════════════════════════════════════════ */
@media (max-width: 1024px) {
  .posts-grid { grid-template-columns: repeat(2, 1fr); }
  .related-grid { grid-template-columns: repeat(2, 1fr); }
  .hero-featured { grid-template-columns: 1fr; }
  .hero-featured-img, .hero-featured-img-placeholder { display: none; }
}

@media (max-width: 768px) {
  .site-nav { display: none; }
  .site-nav.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 60px;
    left: 0;
    right: 0;
    background: var(--bg-2);
    border-bottom: 1px solid var(--border);
    padding: 16px;
    gap: 4px;
    z-index: 99;
  }
  .site-nav.open a { width: 100%; }
  .mobile-menu-btn { display: flex; }

  .posts-grid { grid-template-columns: 1fr; }
  .related-grid { grid-template-columns: 1fr; }
  .hero { padding: 48px 0 40px; }

  .archive-item { grid-template-columns: 90px 1fr; }
  .archive-item-cat { display: none; }

  .footer-inner { grid-template-columns: 1fr; gap: 32px; }
  .footer-links { flex-wrap: wrap; gap: 32px; }
  .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }

  .scroll-top { bottom: 20px; right: 20px; }
}

@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .section-header { flex-direction: column; gap: 12px; }
  .post-card { padding: 20px; }
  .article-title { font-size: 1.75rem; }
}


/* ══════════════════════════════════════════════════════════════
   ANIMATIONS — Scroll reveal, word-rise, ripple, header compact
   ══════════════════════════════════════════════════════════════ */

/* ── Keyframes ──────────────────────────────────────────────── */
@keyframes word-rise {
  from { transform: translateY(100%); opacity: 0; }
  to   { transform: translateY(0);    opacity: 1; }
}

@keyframes ripple-out {
  to { transform: scale(3); opacity: 0; }
}

@keyframes fade-up {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fade-left {
  from { opacity: 0; transform: translateX(-20px); }
  to   { opacity: 1; transform: translateX(0); }
}

@keyframes fade-in {
  from { opacity: 0; }
  to   { opacity: 1; }
}

/* ── Scroll-reveal base states (hidden until JS reveals) ───── */
@media (prefers-reduced-motion: no-preference) {
  .reveal-up {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s cubic-bezier(0.22, 1, 0.36, 1),
                transform 0.6s cubic-bezier(0.22, 1, 0.36, 1);
  }

  .reveal-up.revealed {
    opacity: 1;
    transform: translateY(0);
  }

  .reveal-left {
    opacity: 0;
    transform: translateX(-18px);
    transition: opacity 0.5s cubic-bezier(0.22, 1, 0.36, 1),
                transform 0.5s cubic-bezier(0.22, 1, 0.36, 1);
  }

  .reveal-left.revealed {
    opacity: 1;
    transform: translateX(0);
  }

  .reveal-prose {
    opacity: 0;
    transform: translateY(10px);
    transition: opacity 0.45s ease,
                transform 0.45s cubic-bezier(0.22, 1, 0.36, 1);
  }

  .reveal-prose.revealed {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ── Reduced motion: reveal immediately ─────────────────────── */
@media (prefers-reduced-motion: reduce) {
  .reveal-up, .reveal-left, .reveal-prose {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }
}

/* ── Header compact mode ─────────────────────────────────────── */
.site-header {
  transition: padding 0.3s cubic-bezier(0.22, 1, 0.36, 1),
              box-shadow 0.3s ease,
              background 0.3s ease;
}

.site-header.header--compact {
  padding-top: 8px;
  padding-bottom: 8px;
  box-shadow: 0 1px 0 var(--border), 0 4px 24px rgba(0,0,0,0.3);
  background: color-mix(in srgb, var(--bg) 92%, transparent);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}