/* Navigation */
.site-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.5rem;
  max-width: var(--max-width);
  margin: 0 auto;
  z-index: 100;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.nav-logo {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary) !important;
  text-decoration: none !important;
}

.nav-motto {
  font-style: italic;
  font-size: 0.8rem;
  color: var(--text-accent);
  border-left: 1px solid var(--border-primary);
  padding-left: 1rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.nav-links a {
  color: var(--text-secondary);
  font-size: 0.9rem;
}
.nav-links a.active { color: var(--text-accent); }

/* Theme toggle */
.theme-toggle {
  background: var(--bg-card);
  border: var(--border-width) solid var(--border-primary);
  border-radius: var(--border-radius);
  color: var(--text-accent);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 700;
  padding: 0.3em 0.7em;
  cursor: pointer;
  letter-spacing: 0.08em;
  transition: all var(--transition-speed) ease;
}
.theme-toggle:hover {
  border-color: var(--text-accent);
  background: var(--bg-secondary);
}

/* Hero */
.hero-section {
  padding: 4rem 0 2rem;
  text-align: center;
  position: relative;
  z-index: 2;
}

.hero-title {
  font-size: clamp(2.5rem, 8vw, 4rem);
  margin-bottom: 0.5rem;
  position: relative;
  text-shadow: 0 0 20px var(--bg-primary), 0 0 40px var(--bg-primary);
}

.hero-subtitle {
  color: var(--text-muted);
  font-size: 1rem;
  letter-spacing: 0.15em;
  text-transform: lowercase;
  text-shadow: 0 0 12px var(--bg-primary), 0 0 24px var(--bg-primary);
}

/* Post grid */
.post-grid {
  display: grid;
  gap: 1.5rem;
  padding: 1.5rem 0 3rem;
}

.post-card {
  background: var(--bg-card);
  border: var(--border-width) solid var(--border-primary);
  border-radius: var(--border-radius);
  padding: 1.5rem;
  transition: all var(--transition-speed) ease;
}
.post-card a {
  color: inherit;
  text-decoration: none;
  display: block;
}

.post-card-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
  font-family: var(--font-mono);
}

.post-card-category {
  color: var(--text-accent);
  text-transform: lowercase;
}

.post-card-title {
  font-size: 1.3rem;
  margin-bottom: 0.5rem;
  line-height: 1.3;
}

.post-card-summary {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 0.75rem;
}

.post-card-tags {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
}

.tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  padding: 0.15em 0.5em;
  border: 1px solid var(--border-primary);
  border-radius: 3px;
  color: var(--text-muted);
}

/* Category bar */
.category-bar {
  display: flex;
  gap: 0.5rem;
  padding: 0.5rem 0;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.category-btn {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  padding: 0.4em 1em;
  background: transparent;
  border: var(--border-width) solid var(--border-primary);
  border-radius: var(--border-radius);
  color: var(--text-secondary);
  cursor: pointer;
  white-space: nowrap;
  transition: all var(--transition-speed) ease;
  text-transform: lowercase;
}
.category-btn:hover { border-color: var(--text-accent); color: var(--text-accent); }
.category-btn.active { border-color: var(--text-accent); color: var(--text-accent); background: var(--glow-color); }

/* What's Next */
.whats-next {
  padding: 1.5rem 0;
  position: relative;
  z-index: 2;
}
.whats-next-label {
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: 0.75rem;
  text-shadow: 0 0 8px var(--bg-primary), 0 0 16px var(--bg-primary);
}

.whats-next-card {
  background: var(--bg-card);
  border: var(--border-width) solid var(--border-accent);
  border-radius: var(--border-radius);
  padding: 1.5rem;
  position: relative;
  overflow: hidden;
  z-index: 2;
}

/* Brutalist theme: solid background so card punches through particles */
.theme-brutalist .whats-next-card {
  background: var(--bg-card);
}

.whats-next-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.8rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
  margin-bottom: 0.5rem;
}
.whats-next-status {
  color: var(--text-accent);
  font-weight: 700;
}

.whats-next-title { font-size: 1.2rem; margin-bottom: 0.5rem; }
.whats-next-title-blurred { filter: blur(4px); user-select: none; }
.whats-next-summary { color: var(--text-secondary); font-size: 0.9rem; margin-bottom: 0.75rem; }
.whats-next-summary-blurred { filter: blur(3px); user-select: none; }

/* Footer */
.site-footer {
  text-align: center;
  padding: 2rem 1.5rem;
  color: var(--text-muted);
  font-size: 0.8rem;
  font-family: var(--font-mono);
}

/* Responsive */
@media (max-width: 600px) {
  .hero-section { padding: 2.5rem 0 1.5rem; }
  .hero-title { font-size: 2rem; }
  .post-card { padding: 1.2rem; }
  .site-nav { padding: 0.75rem 1rem; }
}