:root {
  --primary: #0d9488;
  --primary-dark: #0f766e;
  --accent: #0d9488;
  --accent-soft: #ccfbf1;
  --sidebar-bg: #0f172a;
  --sidebar-text: #cbd5e1;
  --sidebar-active: #134e4a;
  --ink: #0f172a;
  --muted: #64748b;
  --surface: #f1f5f9;
  --card: #ffffff;
  --success: #059669;
  --danger: #dc2626;
  --warning: #d97706;
  --border: #e2e8f0;
  --shadow: 0 4px 24px rgba(15, 23, 42, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
  background: var(--surface);
  color: var(--ink);
  line-height: 1.5;
}

a {
  color: var(--primary);
  text-decoration: none;
}

.admin-header {
  background: var(--card);
  border-bottom: 1px solid var(--border);
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.admin-header-left {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.admin-nav {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.admin-nav a {
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--muted);
  background: #f1f5f9;
}

.admin-nav a.active,
.admin-nav a:hover {
  color: var(--primary);
  background: #eef2ff;
}

.admin-container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 24px;
}

.admin-container-wide {
  max-width: 1200px;
}

.admin-header h1 {
  margin: 0;
  font-size: 1.25rem;
}

.admin-header-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--muted);
  font-size: 0.9rem;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.stat-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 18px;
}

.stat-card .label {
  color: var(--muted);
  font-size: 0.85rem;
  margin-bottom: 6px;
}

.stat-card .value {
  font-size: 1.75rem;
  font-weight: 800;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
}

.card-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  font-weight: 700;
}

.table-wrap {
  overflow-x: auto;
}

.presence-cell {
  min-width: 160px;
}

.presence-details summary {
  align-items: center;
  cursor: pointer;
  display: flex;
  gap: 8px;
  white-space: nowrap;
}

.presence-details-label {
  color: var(--muted);
  font-size: 0.8rem;
}

.presence-list-wrap {
  margin-top: 10px;
  max-width: min(560px, 75vw);
  overflow-x: auto;
}

.presence-list {
  font-size: 0.8rem;
  min-width: 500px;
}

.presence-list th,
.presence-list td {
  padding: 8px 10px;
  white-space: nowrap;
}

.coord-edit-cell {
  min-width: 180px;
  white-space: nowrap;
}

.coord-edit {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.coord-edit label {
  align-items: center;
  color: var(--muted);
  display: flex;
  font-size: 0.75rem;
  font-weight: 600;
  gap: 6px;
}

.coord-edit label span {
  flex: 0 0 28px;
}

.coord-edit input {
  border: 1px solid var(--border);
  border-radius: 8px;
  font: inherit;
  font-size: 0.85rem;
  min-width: 120px;
  padding: 6px 8px;
  width: 100%;
}

.dt-container {
  padding: 16px;
}

.dt-container .dt-layout-row {
  align-items: center;
  gap: 12px;
  margin: 0 0 14px;
}

.dt-container .dt-layout-row:last-child {
  margin: 14px 0 0;
}

.dt-container .dt-input {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--ink);
  font: inherit;
  min-height: 36px;
}

.dt-container .dt-search input {
  margin-left: 8px;
  min-width: 190px;
  padding: 6px 10px;
}

.dt-container .dt-length select {
  margin: 0 6px;
  padding: 4px 28px 4px 8px;
}

.dt-container .dt-info {
  color: var(--muted);
  font-size: 0.85rem;
}

.dt-container .dt-paging .dt-paging-button {
  border-radius: 8px !important;
  color: var(--ink) !important;
  min-width: 36px;
}

.dt-container .dt-paging .dt-paging-button.current,
.dt-container .dt-paging .dt-paging-button.current:hover {
  background: var(--primary) !important;
  border-color: var(--primary) !important;
  color: #fff !important;
}

.dt-container .dt-paging .dt-paging-button:hover {
  background: var(--accent-soft) !important;
  border-color: var(--primary) !important;
  color: var(--primary-dark) !important;
}

.dt-container .table-wrap {
  overflow-x: auto;
}

@media (max-width: 640px) {
  .dt-container .dt-layout-row {
    align-items: stretch;
    flex-direction: column;
  }

  .dt-container .dt-layout-cell {
    text-align: left !important;
  }

  .dt-container .dt-search input {
    margin: 6px 0 0;
    width: 100%;
  }
}

table {
  width: 100%;
  border-collapse: collapse;
}

th,
td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}

th {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted);
  background: #fafafa;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: none;
  border-radius: 10px;
  padding: 10px 16px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
}

.btn-primary:hover {
  background: var(--primary-dark);
}

.btn-success {
  background: var(--success);
  color: #fff;
}

.btn-danger {
  background: var(--danger);
  color: #fff;
}

.btn-secondary {
  background: #e2e8f0;
  color: var(--ink);
}

.btn-sm {
  padding: 6px 10px;
  font-size: 0.85rem;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.alert {
  padding: 12px 16px;
  border-radius: 10px;
  margin-bottom: 16px;
}

.alert-success {
  background: #ecfdf5;
  color: #065f46;
  border: 1px solid #a7f3d0;
}

.alert-error {
  background: #fef2f2;
  color: #991b1b;
  border: 1px solid #fecaca;
}

.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.login-card {
  width: 100%;
  max-width: 420px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 32px;
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.08);
}

.login-card h1 {
  margin: 0 0 8px;
  font-size: 1.5rem;
}

.login-card p {
  margin: 0 0 24px;
  color: var(--muted);
}

.lyrics-preview {
  white-space: pre-wrap;
  background: #f8fafc;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px;
  max-height: 420px;
  overflow: auto;
  font-family: inherit;
}

.meta-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 12px;
  margin-bottom: 20px;
}

.meta-item {
  background: #f8fafc;
  border-radius: 10px;
  padding: 12px;
}

.meta-item .label {
  color: var(--muted);
  font-size: 0.8rem;
  margin-bottom: 4px;
}

.empty-state {
  padding: 40px 20px;
  text-align: center;
  color: var(--muted);
}

.page-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 20px;
}

.page-title {
  margin: 0 0 4px;
  font-size: 1.5rem;
}

.page-subtitle {
  margin: 0;
  color: var(--muted);
}

.form-card .card-body,
.review-actions-card .card-body,
.danger-card .card-body {
  padding: 20px;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.form-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-field-full {
  grid-column: 1 / -1;
}

.form-field label {
  font-weight: 600;
  font-size: 0.92rem;
}

.form-field input[type="text"],
.form-field input[type="file"],
.form-field select,
.form-field textarea {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 12px;
  font: inherit;
  background: #fff;
}

.form-field textarea {
  resize: vertical;
  min-height: 120px;
}

.form-field textarea.monospace {
  font-family: Consolas, "Courier New", monospace;
  font-size: 0.9rem;
}

.field-hint {
  margin: 0;
  color: var(--muted);
  font-size: 0.85rem;
}

.required {
  color: var(--danger);
}

.form-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
}

.filter-form .filter-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr auto;
  gap: 12px;
  align-items: end;
}

.filter-actions {
  display: flex;
  align-items: flex-end;
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 8px;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 700;
}

.badge-success {
  background: #ecfdf5;
  color: #065f46;
}

.badge-warning {
  background: #fffbeb;
  color: #92400e;
}

.badge-info {
  background: #eef2ff;
  color: #3730a3;
}

.badge-muted {
  background: #f1f5f9;
  color: #475569;
}

.media-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}

.audio-preview {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 10px;
  padding: 12px;
  background: #f8fafc;
  border: 1px solid var(--border);
  border-radius: 10px;
}

.audio-preview audio {
  width: 100%;
}

.checkbox-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
}

.checkbox-group {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.review-actions-card {
  margin-bottom: 20px;
  border-color: #fcd34d;
}

.youtube-preview-card {
  background: #f8fafc;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px;
}

.youtube-preview-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 10px;
}

.youtube-preview-id {
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 600;
}

.youtube-embed-wrap {
  position: relative;
  width: 100%;
  padding-top: 56.25%;
  border-radius: 10px;
  overflow: hidden;
  background: #0f172a;
}

.youtube-embed-wrap iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.youtube-preview-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.youtube-preview-cell {
  min-width: 0;
}

.quick-inline-form {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 12px;
  align-items: end;
}

.danger-card {
  margin-top: 20px;
  border-color: #fecaca;
}

.pagination-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 16px;
  border-top: 1px solid var(--border);
}

.pagination-info {
  color: var(--muted);
  font-size: 0.9rem;
}

.error-list {
  margin: 0;
  padding-left: 18px;
}

.btn.disabled {
  opacity: 0.5;
  pointer-events: none;
}

@media (max-width: 640px) {
  .admin-header {
    flex-direction: column;
    align-items: flex-start;
  }

  th,
  td {
    padding: 10px 12px;
  }

  .form-grid,
  .filter-form .filter-grid,
  .quick-inline-form {
    grid-template-columns: 1fr;
  }

  .page-header {
    flex-direction: column;
  }
}

/* --- Modern admin shell --- */
.admin-shell {
  display: flex;
  min-height: 100vh;
}

.admin-sidebar {
  width: 260px;
  flex-shrink: 0;
  background: var(--sidebar-bg);
  color: var(--sidebar-text);
  display: flex;
  flex-direction: column;
  padding: 20px 16px;
  position: sticky;
  top: 0;
  height: 100vh;
  z-index: 40;
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 10px 24px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  margin-bottom: 16px;
}

.sidebar-logo {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: var(--accent);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  font-weight: 800;
}

.sidebar-brand strong {
  display: block;
  color: #fff;
  font-size: 0.95rem;
}

.sidebar-brand span {
  font-size: 0.75rem;
  color: #94a3b8;
}

.sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: 4px;
  flex: 1;
}

.sidebar-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 10px;
  color: var(--sidebar-text);
  font-weight: 600;
  font-size: 0.92rem;
  transition: background 0.15s, color 0.15s;
}

.sidebar-link svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
  flex-shrink: 0;
}

.sidebar-link:hover,
.sidebar-link.active {
  background: var(--sidebar-active);
  color: #fff;
}

.nav-badge {
  margin-left: auto;
  background: var(--danger);
  color: #fff;
  font-size: 0.72rem;
  font-weight: 800;
  padding: 2px 7px;
  border-radius: 999px;
  min-width: 20px;
  text-align: center;
}

.sidebar-footer {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 16px;
}

.sidebar-user {
  font-size: 0.8rem;
  color: #94a3b8;
  margin-bottom: 10px;
  word-break: break-all;
}

.btn-block {
  width: 100%;
}

.admin-main {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.admin-topbar {
  background: var(--card);
  border-bottom: 1px solid var(--border);
  padding: 14px 24px;
  display: flex;
  align-items: center;
  gap: 12px;
  position: sticky;
  top: 0;
  z-index: 30;
}

.sidebar-toggle {
  display: none;
  border: none;
  background: var(--surface);
  border-radius: 10px;
  padding: 8px;
  cursor: pointer;
}

.sidebar-toggle svg {
  width: 22px;
  height: 22px;
  fill: var(--ink);
  display: block;
}

.topbar-title h1 {
  margin: 0;
  font-size: 1.25rem;
}

.breadcrumb {
  font-size: 0.85rem;
  color: var(--muted);
  margin-top: 2px;
}

.breadcrumb a {
  color: var(--accent);
}

.sidebar-backdrop {
  display: none;
}

.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 14px;
  margin-bottom: 28px;
}

.kpi-grid-compact {
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
}

.kpi-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 16px 18px;
  box-shadow: var(--shadow);
}

.kpi-card.kpi-warning {
  border-color: #fcd34d;
  background: linear-gradient(180deg, #fffbeb 0%, #fff 100%);
}

.kpi-card.kpi-success {
  border-color: #6ee7b7;
  background: linear-gradient(180deg, #ecfdf5 0%, #fff 100%);
}

.kpi-card.kpi-danger {
  border-color: #fca5a5;
  background: linear-gradient(180deg, #fef2f2 0%, #fff 100%);
}

.kpi-label {
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 600;
  margin-bottom: 6px;
}

.kpi-value {
  font-size: 1.85rem;
  font-weight: 800;
  line-height: 1.1;
}

.kpi-value-sm {
  font-size: 1rem;
}

.kpi-meta {
  margin-top: 6px;
  font-size: 0.78rem;
  color: var(--muted);
}

.section-block {
  margin-bottom: 32px;
}

.section-title {
  margin: 0 0 14px;
  font-size: 1.05rem;
  font-weight: 800;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
}

.feature-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 20px;
  box-shadow: var(--shadow);
  color: inherit;
  transition: transform 0.15s, box-shadow 0.15s, border-color 0.15s;
  display: block;
}

.feature-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(15, 23, 42, 0.12);
  border-color: var(--accent);
}

.feature-card-static {
  cursor: default;
}

.feature-card-static:hover {
  transform: none;
  border-color: var(--border);
}

.feature-icon {
  font-size: 1.6rem;
  margin-bottom: 10px;
}

.feature-card h3 {
  margin: 0 0 8px;
  font-size: 1rem;
}

.feature-card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.45;
}

.feature-badge {
  display: inline-block;
  margin-top: 12px;
  background: #fef3c7;
  color: #92400e;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 999px;
}

.feature-meta {
  display: inline-block;
  margin-top: 12px;
  font-size: 0.78rem;
  color: var(--muted);
  font-weight: 600;
}

.activity-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
}

.card-link {
  float: right;
  font-size: 0.82rem;
  font-weight: 600;
}

.activity-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.activity-list li {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
}

.activity-list li:last-child {
  border-bottom: none;
}

.activity-list strong {
  display: block;
  font-size: 0.9rem;
  margin-bottom: 4px;
}

.activity-meta {
  display: block;
  font-size: 0.78rem;
  color: var(--muted);
}

.quick-links {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 14px 18px;
  font-size: 0.88rem;
  color: var(--muted);
}

.quick-links code {
  background: var(--surface);
  padding: 2px 6px;
  border-radius: 6px;
  font-size: 0.82rem;
}

.quick-sep {
  margin: 0 8px;
  color: var(--border);
}

.status-pill {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 700;
}

.status-ok {
  background: #ecfdf5;
  color: #065f46;
}

.status-off {
  background: #fef2f2;
  color: #991b1b;
}

.status-warn {
  background: #fffbeb;
  color: #92400e;
}

.admin-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.admin-tab {
  padding: 8px 16px;
  border-radius: 999px;
  background: var(--card);
  border: 1px solid var(--border);
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--muted);
}

.admin-tab.active,
.admin-tab:hover {
  background: var(--accent-soft);
  border-color: var(--accent);
  color: var(--accent);
}

.admin-page-header h2 {
  margin: 0 0 6px;
  font-size: 1.35rem;
}

.admin-page-header p {
  margin: 0 0 20px;
  color: var(--muted);
}

.admin-empty {
  padding: 32px;
  text-align: center;
  color: var(--muted);
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
}

.admin-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 24px;
  box-shadow: var(--shadow);
}

.admin-dl {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 12px 20px;
  margin: 0 0 24px;
}

.admin-dl dt {
  font-weight: 700;
  color: var(--muted);
  font-size: 0.85rem;
}

.admin-dl dd {
  margin: 0;
}

.admin-muted {
  color: var(--muted);
}

.admin-pre {
  white-space: pre-wrap;
  background: var(--surface);
  border-radius: 10px;
  padding: 12px;
}

.admin-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

.admin-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
}

.admin-table th,
.admin-table td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

.admin-table th {
  background: #f8fafc;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted);
}

.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: linear-gradient(135deg, #0f172a 0%, #134e4a 50%, #0f766e 100%);
}

.login-card {
  width: 100%;
  max-width: 420px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 36px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.25);
}

.login-card .login-logo {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: var(--accent);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 16px;
}

@media (max-width: 900px) {
  .admin-sidebar {
    position: fixed;
    left: 0;
    top: 0;
    transform: translateX(-100%);
    transition: transform 0.2s ease;
  }

  .admin-shell.sidebar-open .admin-sidebar {
    transform: translateX(0);
  }

  .admin-shell.sidebar-open .sidebar-backdrop {
    display: block;
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.5);
    z-index: 35;
  }

  .sidebar-toggle {
    display: inline-flex;
  }
}

/* ---- Lyrics version review ---- */

.badge-danger {
  background: #fef2f2;
  color: #991b1b;
}

.version-review-header {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.version-review-header h2 {
  margin: 0;
  font-size: 1rem;
}

.version-review-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.version-review-warning {
  margin: 0 0 14px;
  padding: 10px 12px;
  border-radius: 8px;
  background: #fffbeb;
  color: #92400e;
  font-size: 0.85rem;
}

.lyrics-diff-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.lyrics-diff-title {
  display: flex;
  gap: 8px;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: #475569;
}

.version-review-changes {
  margin-top: 18px;
  border: 1px solid #e2e8f0;
  border-radius: 8px;
  padding: 10px 12px;
}

.version-review-changes summary {
  cursor: pointer;
  font-weight: 600;
  font-size: 0.85rem;
}

.diff-list {
  list-style: none;
  margin: 10px 0 0;
  padding: 0;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.82rem;
}

.diff-line {
  display: flex;
  gap: 8px;
  padding: 2px 6px;
  border-radius: 4px;
  white-space: pre-wrap;
  word-break: break-word;
}

.diff-marker {
  flex: 0 0 auto;
  font-weight: 700;
  opacity: 0.7;
}

.diff-added {
  background: #ecfdf5;
  color: #065f46;
}

.diff-removed {
  background: #fef2f2;
  color: #991b1b;
}

.version-review-siblings {
  margin-top: 18px;
}

.version-review-siblings h3 {
  margin: 0 0 8px;
  font-size: 0.85rem;
}

.version-review-siblings ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 6px;
}

.version-review-siblings li {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  font-size: 0.85rem;
}

.version-review-siblings .muted {
  color: #64748b;
}

@media (max-width: 900px) {
  .lyrics-diff-row {
    grid-template-columns: 1fr;
  }
}