/* ===== Admin Layout Styles ===== */

html.admin {
  font-size: var(--font-size-sm);
}

.admin-header-bar {
  background: var(--color-bg-elevated);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(12px);
  background: rgba(255, 255, 255, 0.9);
}

.admin-header-content {
  max-width: 1400px;
  margin: 0 auto;
  padding: var(--space-md) var(--space-xl);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.admin-logo-link {
  text-decoration: none;
  color: inherit;
  display: flex;
  align-items: center;
  gap: var(--space-md);
  transition: opacity var(--transition-fast);
}

.admin-logo-link:hover {
  opacity: 0.8;
}

.admin-logo-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
}

.admin-logo-icon svg {
  width: 22px;
  height: 22px;
  color: white;
}

.admin-logo-text-container {
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.admin-logo-text {
  margin: 0;
  font-size: 1.375rem;
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.2;
}

.admin-logo-tagline {
  font-size: 0.75rem;
  color: var(--color-text-secondary);
  font-weight: 500;
}

.admin-nav {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  flex: 1;
  margin-left: var(--space-xl);
}

.admin-nav-item {
  display: flex;
  align-items: center;
  padding: var(--space-sm) var(--space-md);
  text-decoration: none;
  color: var(--color-text-secondary);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  font-size: 0.9375rem;
  font-weight: 500;
  position: relative;
}

.admin-nav-item:hover {
  color: var(--color-text);
  background: var(--color-bg);
}

.admin-nav-item-active {
  color: var(--color-primary);
  background: var(--color-primary-subtle);
}

.admin-nav-item-active:hover {
  color: var(--color-primary-dark);
}

.admin-header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  margin-left: var(--space-lg);
}

.admin-nav-link {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  text-decoration: none;
  color: var(--color-text);
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-fast);
  font-size: 0.9375rem;
  font-weight: 500;
}

.admin-nav-link:hover {
  background: var(--color-bg);
}

.admin-user-menu {
  display: flex;
  align-items: center;
}

.admin-main-content {
  max-width: 1400px;
  margin: 0 auto;
  padding: var(--space-lg);
  width: 100%;
  min-height: calc(100vh - 80px);
}

/* ===== Admin Dashboard Styles ===== */

.admin-dashboard {
  padding: 0;
}

.admin-header {
  margin-bottom: var(--space-lg);
}

.admin-header h1 {
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-text);
  margin: 0;
}

.admin-content {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.admin-chart-section {
  background: var(--color-bg-elevated);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-border-light);
}

.admin-chart-section h2 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-text);
  margin: 0 0 var(--space-lg) 0;
}

.chart-container {
  width: 100%;
  min-height: 300px;
}

.admin-users-section {
  background: var(--color-bg-elevated);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-border-light);
}

.admin-users-section h2 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-text);
  margin: 0 0 var(--space-md) 0;
}

.admin-users-table-wrapper {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  width: 100%;
}

.admin-users-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9375rem;
}

.admin-users-table thead {
  background: var(--color-bg);
  border-bottom: 2px solid var(--color-border);
}

.admin-users-table th {
  text-align: left;
  padding: var(--space-sm) var(--space-md);
  font-weight: 600;
  color: var(--color-text);
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.admin-users-table tbody tr {
  border-bottom: 1px solid var(--color-border-light);
  transition: background-color var(--transition-fast);
}

.admin-users-table tbody tr:hover {
  background: var(--color-bg);
}

.admin-users-table tbody tr:last-child {
  border-bottom: none;
}

.admin-users-table td {
  padding: var(--space-sm) var(--space-md);
  color: var(--color-text);
  vertical-align: middle;
}

.user-cell {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.user-avatar-small {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--color-border);
  flex-shrink: 0;
}

.user-name {
  font-weight: 500;
  color: var(--color-text);
}

.admin-users-table td:last-child {
  color: var(--color-text-secondary);
  font-size: 0.875rem;
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .admin-header-content {
    padding: var(--space-md);
    flex-wrap: wrap;
    gap: var(--space-md);
  }

  .admin-nav {
    margin-left: var(--space-md);
    order: 3;
    width: 100%;
    justify-content: flex-start;
  }

  .admin-header-actions {
    flex-wrap: wrap;
    gap: var(--space-md);
    margin-left: auto;
  }

  .admin-nav-link span {
    display: none;
  }

  .admin-main-content {
    padding: var(--space-md);
  }

  .admin-dashboard {
    padding: 0;
  }

  .admin-chart-section,
  .admin-users-section {
    padding: var(--space-lg);
  }

  .admin-users-table {
    font-size: 0.875rem;
  }

  .admin-users-table th,
  .admin-users-table td {
    padding: var(--space-sm) var(--space-md);
  }

  .user-avatar-small {
    width: 32px;
    height: 32px;
  }
}

/* ===== Admin Forms ===== */
.admin-form {
  background: var(--color-bg-elevated);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-border-light);
}

.admin-form-group {
  margin-bottom: var(--space-lg);
}

.admin-label {
  display: block;
  margin-bottom: var(--space-sm);
  font-weight: 600;
  font-size: 0.9375rem;
  color: var(--color-text);
}

.admin-input,
.admin-textarea {
  width: 100%;
  padding: var(--space-md) var(--space-lg);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  transition: all var(--transition-fast);
}

.admin-textarea {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  line-height: 1.6;
}

.admin-input:hover,
.admin-textarea:hover {
  border-color: var(--color-text-muted);
}

.admin-input:focus,
.admin-textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  background: var(--color-bg-elevated);
  box-shadow: 0 0 0 4px var(--color-primary-subtle);
}

.admin-help-text {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  margin-top: var(--space-xs);
}

.admin-help-text code {
  background: var(--color-bg);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-primary);
}

.admin-checkbox-label {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  cursor: pointer;
  font-weight: 500;
  color: var(--color-text);
}

.admin-checkbox {
  width: 18px;
  height: 18px;
  cursor: pointer;
}

.admin-form-actions {
  display: flex;
  gap: var(--space-md);
  margin-top: var(--space-xl);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--color-border-light);
}

/* ===== Admin Buttons ===== */
.admin-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-xl);
  font-size: 0.9375rem;
  font-weight: 600;
  font-family: var(--font-sans);
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: all var(--transition-fast);
}

.admin-button-primary {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: white;
  box-shadow: 0 4px 14px rgba(99, 102, 241, 0.25);
}

.admin-button-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(99, 102, 241, 0.35);
}

.admin-button-secondary {
  background: var(--color-bg);
  color: var(--color-text);
  border: 2px solid var(--color-border);
}

.admin-button-secondary:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: var(--color-primary-subtle);
}

/* ===== Admin Tables ===== */
.admin-table-wrapper {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  width: 100%;
}

.admin-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9375rem;
  background: var(--color-bg-elevated);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-border-light);
}

.admin-table thead {
  background: var(--color-bg);
  border-bottom: 2px solid var(--color-border);
}

.admin-table th {
  text-align: left;
  padding: var(--space-sm) var(--space-md);
  font-weight: 600;
  color: var(--color-text);
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.admin-table tbody tr {
  border-bottom: 1px solid var(--color-border-light);
  transition: background-color var(--transition-fast);
}

.admin-table tbody tr:hover {
  background: var(--color-bg);
}

.admin-table tbody tr:last-child {
  border-bottom: none;
}

.admin-table td {
  padding: var(--space-sm) var(--space-md);
  color: var(--color-text);
  vertical-align: middle;
}

/* ===== Admin Links ===== */
.admin-link {
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 500;
  transition: color var(--transition-fast);
}

.admin-link:hover {
  color: var(--color-primary-dark);
  text-decoration: underline;
}

.admin-link-danger {
  color: var(--color-error);
}

.admin-link-danger:hover {
  color: #dc2626;
}

.admin-actions {
  display: flex;
  gap: var(--space-md);
}

/* ===== Admin Badges ===== */
.admin-badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.admin-badge-success {
  background: var(--color-success-subtle);
  color: var(--color-success);
}

.admin-badge-secondary {
  background: var(--color-bg);
  color: var(--color-text-secondary);
  border: 1px solid var(--color-border);
}

.admin-badge-info {
  background: var(--color-info-subtle);
  color: var(--color-info);
}

.admin-badge-error {
  background: var(--color-error-subtle);
  color: var(--color-error);
}

.admin-keywords {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.admin-keyword-tag {
  display: inline-block;
  padding: 4px 12px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  color: var(--color-text);
}

/* ===== Admin Tabs ===== */
.admin-section .tabs {
  margin-top: var(--space-md);
}

.admin-section .tabs-header {
  border-bottom-color: var(--color-border);
}

.admin-section .tab-button {
  padding: var(--space-sm) var(--space-md);
  font-size: 0.9375rem;
}

.admin-section .tab-panel {
  padding-top: var(--space-md);
}

/* ===== Admin Sections ===== */
.admin-section {
  background: var(--color-bg-elevated);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-border-light);
}

.admin-section h2 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-text);
  margin: 0 0 var(--space-md) 0;
}

.admin-code-block {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  overflow-x: auto;
}

.admin-code-block pre {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--color-text);
  white-space: pre-wrap;
  word-wrap: break-word;
}

.admin-code-block code {
  font-family: var(--font-mono);
}

.admin-code-block-scrollable {
  max-height: 600px;
  overflow-y: auto;
  overflow-x: hidden;
}

.admin-definition-list {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-sm) var(--space-lg);
}

.admin-definition-list dt {
  font-weight: 600;
  color: var(--color-text);
}

.admin-definition-list dd {
  margin: 0;
  color: var(--color-text-secondary);
}

.admin-alert {
  padding: var(--space-md);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-lg);
}

.admin-alert-error {
  background: var(--color-error-subtle);
  border: 1px solid var(--color-error);
  color: var(--color-error);
}

.admin-alert h3 {
  margin: 0 0 var(--space-sm) 0;
  font-size: 1rem;
  font-weight: 600;
}

.admin-alert ul {
  margin: 0;
  padding-left: var(--space-lg);
}

/* ===== Admin Search ===== */
.admin-search-form {
  margin-bottom: 0;
}

.admin-search-group {
  display: flex;
  gap: var(--space-md);
  align-items: flex-start;
}

.admin-search-input {
  flex: 1;
  max-width: 500px;
}

/* ===== Admin Video Styles ===== */
.admin-video-title {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.admin-video-thumbnail {
  width: 80px;
  height: 60px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  flex-shrink: 0;
}

.admin-video-thumbnail-large {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-md);
}

.admin-code {
  background: var(--color-bg);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--color-primary);
  border: 1px solid var(--color-border-light);
}