/* ── Changelog Page ───────────────────────────────────── */
.changelog-page {
  padding-bottom: 2rem;
}
.changelog-heading-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}
.changelog-heading-row .section-title {
  margin: 0;
}
.changelog-telegram {
  background: var(--gradient-primary);
  border-radius: var(--radius);
  padding: 1rem 1.1rem;
  margin-bottom: 1rem;
  color: var(--accent-ink);
  box-shadow: 0 4px 16px var(--accent-dim);
}
.changelog-telegram-inner {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.changelog-telegram-icon-wrap {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(27, 20, 32, 0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--accent-ink);
}
.changelog-telegram-icon-wrap svg {
  width: 20px;
  height: 20px;
}
.changelog-telegram-body {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
}
.changelog-telegram-title {
  font-size: 0.88rem;
  font-weight: 700;
  color: inherit;
}
.changelog-telegram-subtitle {
  font-size: 0.75rem;
  color: inherit;
  opacity: 0.75;
}
.changelog-telegram-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.4rem 1rem;
  border-radius: var(--radius-sm);
  background: var(--accent-ink);
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 700;
  text-decoration: none;
  white-space: nowrap;
  flex-shrink: 0;
  transition:
    transform var(--transition-speed),
    box-shadow var(--transition-speed);
}
.changelog-telegram-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}
.changelog-telegram-hint {
  display: block;
  text-align: center;
  font-size: 0.65rem;
  color: inherit;
  opacity: 0.65;
  margin-top: 0.5rem;
}
.changelog-content {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}
.changelog-day {
  background: var(--bg-surface);
  border: 1px solid var(--border-hairline);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color var(--transition-speed);
}
.changelog-day:hover {
  border-color: var(--border-hairline-strong);
}
.changelog-day-heading {
  margin: 0;
}
.changelog-day-toggle {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  width: 100%;
  padding: 0.85rem 1rem;
  background: transparent;
  border: 0;
  color: inherit;
  font: inherit;
  text-align: left;
  cursor: pointer;
  transition: background var(--transition-speed);
}
.changelog-day-toggle:hover {
  background: var(--surface-tint);
}
.changelog-date {
  flex: 1 1 auto;
  min-width: 0;
  font-size: 1.85rem;
  font-weight: 400;
  line-height: 1;
  letter-spacing: 0.03em;
  color: var(--text-secondary);
}
.changelog-day-meta {
  flex: 0 0 auto;
  font-family: var(--font-stack);
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-muted);
  white-space: nowrap;
}
.changelog-day-chevron {
  display: flex;
  flex: 0 0 auto;
  color: var(--text-muted);
  transition: transform 0.2s var(--ease);
}
.changelog-day.open .changelog-day-chevron {
  transform: rotate(180deg);
}
.changelog-day-body {
  padding: 0.9rem 1rem 1rem;
  border-top: 1px solid var(--border-hairline);
}
.changelog-day-body[hidden] {
  display: none;
}
.changelog-date-day {
  font-size: 1.2em;
  letter-spacing: 0.05em;
  color: hsl(var(--date-hue, 28) 68% 70%);
}
:root[data-theme="light"] .changelog-date-day {
  color: hsl(var(--date-hue, 28) 62% 34%);
}
.changelog-bundle {
  margin-bottom: 0.65rem;
}
.changelog-bundle:last-child {
  margin-bottom: 0;
}
.changelog-bundle-name {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 0.35rem;
}
.changelog-app {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.3rem 0.3rem 0.3rem 0.75rem;
  font-size: 0.82rem;
  border-radius: var(--radius-sm);
  transition: background var(--transition-speed);
}
.changelog-app--clickable {
  cursor: pointer;
}
.changelog-app--clickable:hover {
  background: var(--surface-tint);
}
.changelog-app-name {
  font-weight: 500;
}

/* ── Diff Page (app-centric) ──────────────────────────── */
.diff-page {
  padding-bottom: 2rem;
}
.diff-app-search {
  position: relative;
  margin-bottom: 1.25rem;
}
.diff-app-search-icon {
  position: absolute;
  left: 10px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  pointer-events: none;
  opacity: 0.5;
  display: flex;
  align-items: center;
}
.diff-app-search-input {
  width: 100%;
  background: var(--bg-surface);
  border: 1px solid var(--border-hairline);
  border-radius: var(--radius-sm);
  padding: 0.55rem 0.75rem 0.55rem 2rem;
  color: var(--text-primary);
  font-family: var(--font-stack);
  font-size: 0.88rem;
  outline: none;
  transition: border-color var(--transition-speed);
}
.diff-app-search-input::placeholder {
  color: var(--text-muted);
}
.diff-app-search-input:focus {
  border-color: var(--text-muted);
}
.diff-app-search-dropdown {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  right: 0;
  z-index: 20;
  background: var(--bg-surface);
  border: 1px solid var(--border-hairline-strong);
  border-radius: var(--radius-sm);
  max-height: 280px;
  overflow-y: auto;
  display: none;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.25);
}
.diff-app-search-dropdown.open {
  display: block;
}
.diff-app-search-item {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.45rem 0.7rem;
  cursor: pointer;
  transition: background var(--transition-speed);
}
.diff-app-search-item:hover {
  background: var(--bg-surface-inner);
}
.diff-app-search-suggestion {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.5rem 0.7rem;
  font-size: 0.82rem;
  color: var(--text-muted);
  flex-wrap: wrap;
}
/* ── Diff suggestions ────────────────────────────────── */
.diff-suggestions {
  margin-top: 1rem;
}
.diff-suggestions-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.6rem;
}
.diff-suggestions-title {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.diff-suggestions-refresh {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border: 1px solid var(--border-hairline);
  border-radius: var(--radius-sm);
  background: var(--bg-surface-inner);
  color: var(--text-muted);
  cursor: pointer;
  transition:
    color var(--transition-speed),
    border-color var(--transition-speed),
    transform 0.3s ease;
}
.diff-suggestions-refresh:hover {
  color: var(--text-primary);
  border-color: var(--border-hairline-strong);
}
.diff-suggestions-refresh:active {
  transform: rotate(180deg);
}
.diff-suggestions-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 0.5rem;
}
.diff-suggestion-card {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.55rem 0.65rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-hairline);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition:
    border-color var(--transition-speed),
    background var(--transition-speed);
}
.diff-suggestion-card:hover {
  border-color: var(--border-hairline-strong);
  background: var(--bg-surface-inner);
}
.diff-suggestion-card .app-icon {
  width: 28px;
  height: 28px;
}
.diff-suggestion-card .app-icon--fallback {
  width: 28px;
  height: 28px;
  font-size: 0.7rem;
}
.diff-suggestion-info {
  display: flex;
  flex-direction: column;
  gap: 0.05rem;
  min-width: 0;
  flex: 1;
}
.diff-suggestion-name {
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.diff-suggestion-meta {
  font-size: 0.65rem;
  color: var(--text-muted);
}
.diff-result {
  margin-top: 0.5rem;
}
.diff-app-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border-hairline);
}
.diff-app-header .app-icon {
  width: 40px;
  height: 40px;
}
.diff-app-header-info {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
}
.diff-app-header-name {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0;
}
.diff-app-header-pkg {
  font-size: 0.72rem;
  font-family: var(--mono-stack);
  color: var(--text-muted);
}
.diff-bundle-group {
  margin-bottom: 1rem;
}
.diff-bundle-group-title {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  padding: 0 0.15rem;
  margin-bottom: 0.5rem;
}
.diff-bundle-section {
  margin-bottom: 1.25rem;
}
.diff-bundle-section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  padding: 0.5rem 0.65rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-hairline);
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
  cursor: pointer;
  user-select: none;
}
.diff-bundle-section-header:focus-visible {
  outline: 2px solid var(--state-info);
  outline-offset: -2px;
}
.diff-bundle-section-side {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-shrink: 0;
}
.diff-bundle-section-toggle {
  display: flex;
  align-items: center;
  color: var(--text-muted);
  transition: transform var(--transition-speed);
}
.diff-bundle-section.collapsed .diff-bundle-section-toggle {
  transform: rotate(-90deg);
}
.diff-bundle-section.collapsed .diff-bundle-section-header {
  border-radius: var(--radius-sm);
}
.diff-bundle-section.collapsed .diff-bundle-patches {
  display: none;
}
.diff-bundle-section-info {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  flex-wrap: wrap;
  min-width: 0;
}
.diff-bundle-section-avatar {
  width: 20px;
  height: 20px;
  border-radius: 4px;
  object-fit: cover;
  flex-shrink: 0;
}
.diff-bundle-section-avatar--fallback {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--text-muted);
  color: var(--bg-void);
  font-size: 0.6rem;
  font-weight: 700;
}
.diff-bundle-section-name {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-primary);
}
.diff-bundle-section-count {
  font-size: 0.68rem;
  font-weight: 600;
  color: var(--text-muted);
  flex-shrink: 0;
}
.diff-bundle-patches {
  border: 1px solid var(--border-hairline);
  border-top: none;
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
  overflow: hidden;
}
.diff-patch-row {
  padding: 0.45rem 0.65rem;
  border-bottom: 1px solid var(--border-hairline);
  transition: background var(--transition-speed);
}
.diff-patch-row:last-child {
  border-bottom: none;
}
.diff-patch-row:hover {
  background: var(--bg-surface-inner);
}
.diff-patch-row-header {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  flex-wrap: wrap;
}
.diff-patch-row-name {
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-primary);
}
.diff-patch-shared-badge {
  font-size: 0.55rem;
  font-weight: 700;
  padding: 0.08rem 0.3rem;
  border-radius: 4px;
  background: var(--state-info-dim);
  color: var(--state-info);
  max-width: 12rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.diff-patch-row-desc {
  font-size: 0.72rem;
  color: var(--text-muted);
  margin: 0.15rem 0 0;
  line-height: 1.35;
}
.diff-patch-row-meta {
  margin-top: 0.2rem;
}
.diff-patch-versions {
  font-size: 0.65rem;
  font-family: var(--mono-stack);
  color: var(--text-muted);
}
.diff-empty {
  font-size: 0.82rem;
  color: var(--text-muted);
  text-align: center;
  padding: 1rem;
  font-style: italic;
}