.extras-header {
  padding: 48px 0 24px;
}

.extras-header h1 {
  font-size: 2.5rem;
  margin-bottom: 8px;
}

.extras-subtitle {
  font-size: 1.125rem;
  opacity: 0.7;
  margin-bottom: 4px;
}

.extras-meta {
  font-size: 0.8125rem;
  opacity: 0.5;
}

.extras-meta a { color: var(--color-secondary); }

/* ---- about ---- */

.os-badge {
  display: inline-block;
  font-family: monospace;
  font-size: 0.75rem;
  padding: 4px 12px;
  border: 1px solid var(--color-accent);
  border-radius: 4px;
  color: var(--color-secondary);
  margin-bottom: 16px;
  letter-spacing: 0.03em;
}

.about-tagline {
  font-style: italic;
  opacity: 0.7;
  font-size: 0.9375rem;
}

.about-mission, .about-stats, .about-depts, .about-stack {
  padding: 24px 0;
}

.about-mission h2, .about-stats h2, .about-depts h2, .about-stack h2,
.now-section h2, .uses-section h2, .lab-section h2, .colophon-section h2 {
  font-size: 1.25rem;
  margin-bottom: 12px;
  color: var(--color-primary);
}

.about-mission p { margin-bottom: 8px; }

.stat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.stat-card {
  background: #fff;
  border-radius: 12px;
  padding: 20px;
  text-align: center;
  border: 1px solid rgba(45, 106, 79, 0.1);
}

.stat-value {
  display: block;
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-primary);
}

.stat-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  opacity: 0.6;
}

.about-dept-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.about-dept-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  background: #fff;
  border-radius: 8px;
  border-left: 3px solid var(--dept-color);
}

.about-dept-fun {
  display: block;
  font-size: 0.8125rem;
  font-style: italic;
  opacity: 0.6;
}

.stack-list {
  list-style: none;
}

.stack-list li {
  padding: 8px 0;
  border-bottom: 1px solid rgba(45, 106, 79, 0.08);
}

/* ---- now + uses ---- */

.now-section, .uses-section { padding: 16px 0; }
.now-section ul, .uses-section ul { padding-left: 20px; }
.now-section li, .uses-section li { padding: 4px 0; }

/* ---- lab ---- */

.lab-section { padding: 24px 0; }

.lab-card {
  background: #fff;
  border-radius: 12px;
  padding: 20px;
  margin-bottom: 12px;
  border: 1px solid rgba(45, 106, 79, 0.1);
}

.lab-card h3 { margin-bottom: 6px; }
.lab-card p { font-size: 0.9375rem; opacity: 0.8; margin-bottom: 8px; }

.lab-card-graduated { opacity: 0.7; }

.lab-status {
  display: inline-block;
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 2px 8px;
  border-radius: 4px;
}

.lab-status-active {
  background: rgba(45, 106, 79, 0.1);
  color: var(--color-primary);
}

.lab-status-graduated {
  background: rgba(45, 106, 79, 0.05);
  color: var(--color-secondary);
}

/* ---- colophon ---- */

.colophon-section { padding: 16px 0; }
.colophon-section ol { padding-left: 20px; }
.colophon-section li { padding: 4px 0; }

/* ---- changelog ---- */

.changelog-timeline {
  padding: 24px 0;
}

.changelog-entry {
  display: flex;
  align-items: baseline;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid rgba(45, 106, 79, 0.08);
}

.changelog-date {
  font-family: monospace;
  font-size: 0.8125rem;
  color: var(--color-secondary);
  white-space: nowrap;
  min-width: 100px;
}

.changelog-type {
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 2px 8px;
  border-radius: 4px;
  white-space: nowrap;
}

.changelog-type-launched { background: var(--color-primary); color: var(--color-bg); }
.changelog-type-added { background: rgba(45, 106, 79, 0.1); color: var(--color-primary); }
.changelog-type-fixed { background: rgba(45, 106, 79, 0.05); color: var(--color-secondary); }
.changelog-type-removed { background: rgba(27, 67, 50, 0.06); color: var(--color-text); }

.changelog-text { flex: 1; }

/* ---- connect ---- */

.connect-links {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 24px 0;
}

.connect-card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px;
  background: #fff;
  border-radius: 12px;
  border: 1px solid rgba(45, 106, 79, 0.1);
  text-decoration: none;
  color: var(--color-text);
  transition: transform 0.15s;
}

.connect-card:hover {
  transform: translateY(-2px);
  text-decoration: none;
}

.connect-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background: var(--color-primary);
  color: var(--color-bg);
  border-radius: 12px;
  font-size: 1.25rem;
  font-weight: 700;
  flex-shrink: 0;
}

.connect-card span {
  display: block;
  font-size: 0.875rem;
  opacity: 0.7;
}

/* ---- responsive ---- */

@media (max-width: 1023px) {
  .stat-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 767px) {
  .stat-grid { grid-template-columns: repeat(2, 1fr); }
  .changelog-entry { flex-direction: column; gap: 4px; }
}