.changelog-page {
  padding-top: calc(var(--header-h, 64px) + var(--space-16));
  padding-bottom: var(--space-24);
  min-height: 100vh;
}

.changelog-hero {
  margin-bottom: var(--space-16);
}

.changelog-hero__title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 800;
  color: var(--color-text);
  margin: var(--space-3) 0 var(--space-4);
  line-height: 1.1;
}

.changelog-hero__sub {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  max-width: 480px;
  padding-bottom: var(--space-6);
}

.changelog-feed {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.changelog-entry {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: var(--space-8);
  padding-bottom: var(--space-16);
}

.changelog-entry__aside {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  padding-top: var(--space-1);
  position: relative;
}

.changelog-entry__version {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--color-primary-light, #3b82f6);
  letter-spacing: 0.04em;
}

.changelog-entry__date {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-top: var(--space-1);
  cursor: default;
}

.changelog-entry__line {
  width: 1px;
  flex: 1;
  background: var(--color-border);
  margin-top: var(--space-4);
  align-self: stretch;
}

.changelog-entry__body {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg, 12px);
  background: var(--color-surface, #111114);
  overflow: hidden;
  transition: border-color 0.2s;
}

/* Header row — always visible, acts as the toggle */
.changelog-entry__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-8);
  cursor: pointer;
  user-select: none;
}

.changelog-entry__header:hover .changelog-entry__chevron {
  color: var(--color-text);
}

.changelog-entry__header-left {
  flex: 1;
  min-width: 0;
}

.changelog-entry__chevron {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin-top: 6px;
  flex-shrink: 0;
  transition: transform 0.25s ease, color 0.2s;
}

/* Collapsed state */
[data-collapsed="true"] .changelog-entry__chevron {
  transform: rotate(180deg);
}

[data-collapsed="true"] .changelog-entry__content {
  display: none;
}

/* Expandable content area */
.changelog-entry__content {
  padding: 0 var(--space-8) var(--space-8);
}

.changelog-entry__badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 10px;
  border-radius: var(--radius-full, 9999px);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: var(--space-4);
}

.changelog-entry__badge--initial {
  background: rgba(37, 99, 235, 0.12);
  color: var(--color-primary-light, #3b82f6);
  border: 1px solid rgba(37, 99, 235, 0.25);
}

.changelog-entry__badge--update {
  background: rgba(16, 185, 129, 0.12);
  color: #34d399;
  border: 1px solid rgba(16, 185, 129, 0.25);
}

.changelog-entry__badge--hotfix {
  background: rgba(249, 115, 22, 0.12);
  color: #fb923c;
  border: 1px solid rgba(249, 115, 22, 0.25);
}

.changelog-entry__badge--beta {
  background: rgba(139, 92, 246, 0.12);
  color: #a78bfa;
  border: 1px solid rgba(139, 92, 246, 0.25);
}

.changelog-entry__title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-3);
}

.changelog-entry__desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.65;
  margin-bottom: 0;
  max-width: 580px;
}

.changelog-entry__groups {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
  padding-top: var(--space-6);
  margin-top: var(--space-6);
  border-top: 1px solid var(--color-border);
}

.changelog-group__label {
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
  margin-bottom: var(--space-3);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.changelog-group__label i {
  font-size: 0.7rem;
  opacity: 0.7;
}

.changelog-group__list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.changelog-group__list li {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.5;
}

.changelog-group__list li::before {
  content: "";
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--color-primary-light, #3b82f6);
  flex-shrink: 0;
}

.nav__active {
  color: var(--color-primary-light, #3b82f6) !important;
}

@media (max-width: 640px) {
  .changelog-entry {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }

  .changelog-entry__aside {
    flex-direction: row;
    align-items: center;
    gap: var(--space-3);
  }

  .changelog-entry__line {
    display: none;
  }

  .changelog-entry__header {
    padding: var(--space-6);
  }

  .changelog-entry__content {
    padding: 0 var(--space-6) var(--space-6);
  }
}