/* ============================================
   SPEARHEAD DEVLOG — MAIN STYLES
   Dark editorial, Warhammer-adjacent, Medium-clean
   ============================================ */

:root {
  --bg:          #0e0e0f;
  --bg-card:     #161618;
  --bg-hover:    #1c1c1f;
  --border:      #2a2a2e;
  --border-light:#333338;

  --text-primary:   #e8e6e1;
  --text-secondary: #9b9791;
  --text-muted:     #5c5a56;

  --accent:       #c0392b;
  --accent-light: #e74c3c;
  --accent-glow:  rgba(192, 57, 43, 0.15);

  --font-display: 'Playfair Display', Georgia, serif;
  --font-body:    'Source Serif 4', Georgia, serif;
  --font-mono:    'JetBrains Mono', monospace;

  --max-w: 1140px;
  --gutter: 24px;
  --radius: 4px;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 18px;
  line-height: 1.7;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

/* ── SCROLLBAR ── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border-light); border-radius: 3px; }

/* ============================================
   NAV
   ============================================ */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--gutter);
  height: 60px;
  background: rgba(14, 14, 15, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-size: 1.1rem;
  letter-spacing: 0.01em;
  transition: opacity 0.2s;
}
.nav-brand:hover { opacity: 0.8; }

.brand-icon {
  font-size: 1.3rem;
  color: var(--accent-light);
  line-height: 1;
}

.brand-text em {
  font-style: italic;
  color: var(--text-secondary);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-link {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-secondary);
  transition: color 0.2s;
  padding-bottom: 2px;
}
.nav-link:hover,
.nav-link.active {
  color: var(--text-primary);
}
.nav-link.active {
  border-bottom: 1px solid var(--accent);
}

/* ============================================
   HERO
   ============================================ */
.hero {
  padding: 80px var(--gutter) 0;
  max-width: var(--max-w);
  margin: 0 auto;
}

.hero-inner {
  max-width: 680px;
}

.hero-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-light);
  margin-bottom: 20px;
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 5vw, 3.8rem);
  font-weight: 700;
  line-height: 1.12;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin-bottom: 20px;
}
.hero-title em {
  font-style: italic;
  color: var(--accent-light);
}

.hero-sub {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.65;
  max-width: 560px;
}

.hero-rule {
  margin-top: 60px;
  height: 1px;
  background: linear-gradient(to right, var(--accent) 0%, var(--border) 40%, transparent 100%);
}

/* ============================================
   MAIN LAYOUT
   ============================================ */
.main-layout {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 56px var(--gutter) 80px;
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 64px;
  align-items: start;
}

/* ============================================
   POSTS SECTION
   ============================================ */
.section-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 36px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}

.section-title {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 400;
  color: var(--text-primary);
}

.post-count {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
  letter-spacing: 0.06em;
}

/* ── POST CARDS ── */
.posts-grid {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.post-card {
  display: grid;
  grid-template-columns: 1fr;
  padding: 28px 0;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  transition: background 0.15s;
  text-decoration: none;
  color: inherit;
}
.post-card:hover { background: none; }
.post-card:hover .post-card-title { color: var(--accent-light); }
.post-card:first-child { padding-top: 0; }

.post-card-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 10px;
}

.post-card-tag {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent-light);
  border: 1px solid var(--accent);
  padding: 2px 7px;
  border-radius: 2px;
}

.post-card-date {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
}

.post-card-title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.01em;
  margin-bottom: 8px;
  transition: color 0.2s;
}

.post-card-excerpt {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.post-card-footer {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 14px;
}

.post-card-readtime {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-muted);
}

.post-card-video-badge {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 5px;
}
.post-card-video-badge::before {
  content: '▶';
  color: var(--accent-light);
  font-size: 0.6rem;
}

/* ── FEATURED CARD (first post) ── */
.post-card.featured {
  padding: 32px 28px;
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  margin-bottom: 8px;
}
.post-card.featured .post-card-title { font-size: 1.9rem; }

/* ── LOADING STATE ── */
.loading-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  padding: 60px 0;
  color: var(--text-muted);
  font-size: 0.9rem;
  font-family: var(--font-mono);
}

.loading-spinner {
  width: 28px;
  height: 28px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* ── EMPTY STATE ── */
.empty-state {
  text-align: center;
  padding: 80px 20px;
  color: var(--text-muted);
}
.empty-state h3 {
  font-family: var(--font-display);
  font-size: 1.4rem;
  margin-bottom: 12px;
  color: var(--text-secondary);
}

/* ============================================
   SIDEBAR
   ============================================ */
.sidebar {
  display: flex;
  flex-direction: column;
  gap: 24px;
  position: sticky;
  top: 84px;
}

.sidebar-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
}

.sidebar-heading {
  font-family: var(--font-mono);
  font-size: 0.80rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.sidebar-card p {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 12px;
}

.sidebar-link {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent-light);
  transition: opacity 0.2s;
}
.sidebar-link:hover { opacity: 0.75; }

.tag-list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  padding: 3px 9px;
  background: var(--bg-hover);
  border: 1px solid var(--border-light);
  border-radius: 2px;
  color: var(--text-secondary);
}

/* ============================================
   FOOTER
   ============================================ */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 28px var(--gutter);
}

.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
}

.footer-divider { color: var(--border-light); }

.footer-back {
  color: var(--text-secondary);
  transition: color 0.2s;
}
.footer-back:hover { color: var(--accent-light); }

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 900px) {
  .main-layout {
    grid-template-columns: 1fr;
    gap: 48px;
  }
  .sidebar { position: static; }
}

@media (max-width: 600px) {
  .hero { padding-top: 48px; }
  .hero-title { font-size: 2rem; }
  .post-card.featured { padding: 20px; }
  .post-card.featured .post-card-title { font-size: 1.5rem; }
  .nav-links { gap: 16px; }
}