/* Compatibility layer: keep legacy admin classes usable inside AdminLTE 4 */
.container { max-width: 100%; }
.card { margin-bottom: 1rem; }
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 0.75rem;
  margin-bottom: 1rem;
}
.stat-card { padding: 1rem; }
.stat-label { display: block; font-size: 0.85rem; color: #6c757d; }
.stat-value { display: block; font-size: 1.5rem; font-weight: 600; }
.stat-note { display: block; font-size: 0.75rem; }
.data-table { width: 100%; }
.data-table th, .data-table td { padding: 0.5rem; border-top: 1px solid #dee2e6; }
.form label { display: block; margin-bottom: 0.75rem; }
.form input[type="text"],
.form input[type="password"],
.form input[type="number"],
.form input[type="email"],
.form select,
.form textarea {
  display: block;
  width: 100%;
  padding: 0.375rem 0.75rem;
  border: 1px solid #ced4da;
  border-radius: 0.375rem;
}
.btn { display: inline-block; }
.login-page .login-box { width: 400px; max-width: 100%; }
.env-badge {
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  padding: 0.35rem 0.55rem;
  border: 1px solid currentColor;
}
.env-production { background: #dc3545; color: #fff; border-color: #bd2130; }
.env-staging { background: #fd7e14; color: #fff; }
.env-development, .env-dev { background: #0dcaf0; color: #000; }
.env-test { background: #6c757d; color: #fff; }
.env-local { background: #212529; color: #fff; }
.badge-healthy { background: #198754; color: #fff; }
.badge-degraded { background: #ffc107; color: #212529; }
.badge-offline { background: #dc3545; color: #fff; }
.badge-maintenance { background: #0d6efd; color: #fff; }
.badge-unknown { background: #6c757d; color: #fff; }
.badge-active { background: #198754; color: #fff; }
.badge-expired { background: #dc3545; color: #fff; }
.muted { color: #6c757d; }
.admin-nav { display: none; }
.key-once-box {
  background: #fff3cd;
  border: 1px solid #ffeeba;
  padding: 1rem;
  border-radius: 0.375rem;
  margin-bottom: 1rem;
  word-break: break-all;
}

/* Legacy .tab-bar → Bootstrap-like nav tabs */
.tab-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.15rem;
  margin: 0 0 1.25rem;
  padding: 0;
  list-style: none;
  border-bottom: 1px solid var(--bs-border-color, #dee2e6);
}

.tab-bar .tab {
  display: inline-block;
  margin-bottom: -1px;
  padding: 0.65rem 1.1rem;
  color: var(--bs-secondary-color, #6c757d);
  text-decoration: none !important;
  border: 0;
  border-bottom: 2px solid transparent;
  background: transparent;
  font-weight: 500;
  line-height: 1.25;
  border-radius: 0;
}

.tab-bar .tab:hover {
  color: var(--bs-body-color, #212529);
  border-bottom-color: var(--bs-border-color, #dee2e6);
}

.tab-bar .tab.active {
  color: var(--bs-primary, #0d6efd);
  border-bottom-color: var(--bs-primary, #0d6efd);
  font-weight: 600;
}

.tab-bar-nested {
  margin-top: -0.5rem;
  margin-bottom: 1.25rem;
}

.tab-bar-nested .tab {
  padding: 0.5rem 0.9rem;
  font-size: 0.9rem;
}

/* Playlist / announcer package cover grids (Music, Menu Music, Announcers) */
.playlist-grid,
.announcer-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.25rem;
  margin-top: 1rem;
}

.playlist-card {
  display: block;
  color: inherit;
  text-decoration: none;
  padding: 0;
  overflow: hidden;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.playlist-card:hover {
  transform: translateY(-2px);
  color: inherit;
}

.playlist-cover,
.announcer-photo {
  aspect-ratio: 1;
  background: var(--bs-secondary-bg, #e9ecef);
  overflow: hidden;
}

.playlist-cover img,
.announcer-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.playlist-cover-placeholder {
  width: 100%;
  height: 100%;
  min-height: 8rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  color: var(--bs-secondary-color, #6c757d);
  background: linear-gradient(
    135deg,
    var(--bs-secondary-bg, #e9ecef),
    var(--bs-tertiary-bg, #f8f9fa)
  );
}

.playlist-meta,
.announcer-meta {
  padding: 1rem;
}

.playlist-meta h3,
.announcer-meta h3 {
  font-size: 1rem;
  margin-bottom: 0.25rem;
}

.announcer-card {
  padding: 0;
  overflow: hidden;
}

@media (max-width: 991.98px) {
  .playlist-grid,
  .announcer-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 575.98px) {
  .playlist-grid,
  .announcer-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 767.98px) {
  .app-content-header h1 {
    font-size: 1.4rem;
  }
}