/* ============================================================================
   XIBO CMS MODERN THEME - OTS Signs
   Dark Mode Override - Component Styling
   ============================================================================ */

/* Force dark mode */
:root {
  --color-primary: #3b82f6;
  --color-primary-dark: #1d4ed8;
  --color-primary-light: #60a5fa;
  --color-primary-lighter: #dbeafe;
  --color-secondary: #7c3aed;
  --color-success: #10b981;
  --color-warning: #f59e0b;
  --color-danger: #ef4444;
  --color-info: #0ea5e9;
  
  --color-background: #0f172a;
  --color-surface: #1e293b;
  --color-surface-elevated: #334155;
  --color-border: #475569;
  --color-border-light: #1e293b;
  --color-text-primary: #f1f5f9;
  --color-text-secondary: #cbd5e1;
  --color-text-tertiary: #94a3b8;
  --color-text-inverse: #0f172a;
  
  color-scheme: dark;
}

html,
body {
  background-color: var(--color-background);
  color: var(--color-text-primary);
}

/* ============================================================================
   SHELL LAYOUT - SIDEBAR + MAIN
   ============================================================================ */

.ots-shell {
  display: flex;
  min-height: 100vh;
}

.ots-sidebar {
  position: fixed;
  left: 0;
  top: 0;
  width: 250px;
  height: 100vh;
  background-color: var(--color-surface);
  border-right: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  z-index: 1000;
}

.ots-main {
  flex: 1;
  margin-left: 250px;
  display: flex;
  flex-direction: column;
}

.ots-content {
  flex: 1;
  padding: 32px;
  overflow-y: auto;
}

.ots-footer {
  border-top: 1px solid var(--color-border);
  padding: 16px 32px;
  background-color: var(--color-surface-elevated);
  text-align: center;
}

/* Responsive sidebar */
@media (max-width: 768px) {
  .ots-sidebar {
    transform: translateX(-100%);
    transition: transform var(--transition-base);
    width: 280px;
  }

  .ots-sidebar.active {
    transform: translateX(0);
    box-shadow: 2px 0 8px rgba(0, 0, 0, 0.3);
  }

  .ots-main {
    margin-left: 0;
  }
}

/* ============================================================================
   SIDEBAR STYLES
   ============================================================================ */

.sidebar-header {
  padding: 24px 16px;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-link {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--color-text-primary);
  text-decoration: none;
  font-weight: 600;
  font-size: 18px;
}

.brand-icon {
  font-size: 28px;
}

.sidebar-content {
  flex: 1;
  padding: 12px 0;
  overflow-y: auto;
}

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

.sidebar-nav li {
  display: block;
}

.nav-section-divider {
  padding: 12px 16px 8px;
  margin-top: 8px;
  border-top: 1px solid var(--color-border);
}

.nav-label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--color-text-tertiary);
  letter-spacing: 0.05em;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: all var(--transition-fast);
  position: relative;
}

.nav-item:hover {
  color: var(--color-text-primary);
  background-color: rgba(59, 130, 246, 0.1);
}

.nav-item.active {
  color: var(--color-primary);
  background-color: rgba(59, 130, 246, 0.15);
  border-left: 3px solid var(--color-primary);
  padding-left: 13px;
}

.nav-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

.nav-text {
  font-size: 14px;
  font-weight: 500;
}

.sidebar-footer {
  border-top: 1px solid var(--color-border);
  padding: 16px;
  background-color: rgba(59, 130, 246, 0.05);
}

.sidebar-user {
  display: flex;
  align-items: center;
  gap: 12px;
}

.user-avatar-lg {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, #3b82f6, #7c3aed);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 16px;
  flex-shrink: 0;
}

.user-details {
  min-width: 0;
}

.user-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.user-role {
  color: var(--color-text-tertiary);
  white-space: nowrap;
}

/* ============================================================================
   TOPBAR STYLES
   ============================================================================ */

.ots-topbar {
  background-color: var(--color-surface-elevated);
  border-bottom: 1px solid var(--color-border);
  padding: 12px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: 70px;
}

.topbar-left {
  display: flex;
  align-items: center;
  gap: 16px;
  flex: 1;
}

.topbar-toggle {
  display: none;
  width: 40px;
  height: 40px;
  padding: 0;
  border: none;
  background-color: transparent;
  color: var(--color-text-primary);
  cursor: pointer;
  border-radius: 6px;
  transition: background-color var(--transition-fast);
}

.topbar-toggle:hover {
  background-color: var(--color-surface);
}

.topbar-toggle .icon {
  width: 24px;
  height: 24px;
}

.topbar-title h1 {
  margin: 0;
  font-size: 24px;
  font-weight: 600;
  color: var(--color-text-primary);
}

.topbar-title p {
  margin: 0;
  font-size: 14px;
  color: var(--color-text-secondary);
}

.topbar-right {
  display: flex;
  align-items: center;
  gap: 24px;
}

.topbar-search {
  position: relative;
  width: 280px;
  display: flex;
  align-items: center;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  padding: 8px 12px;
}

.topbar-search .search-icon {
  color: var(--color-text-tertiary);
  flex-shrink: 0;
  margin-right: 8px;
}

.topbar-search .search-input {
  flex: 1;
  background: none;
  border: none;
  color: var(--color-text-primary);
  font-size: 14px;
  outline: none;
}

.topbar-search .search-input::placeholder {
  color: var(--color-text-tertiary);
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.topbar-btn {
  width: 40px;
  height: 40px;
  padding: 0;
  border: none;
  background-color: transparent;
  color: var(--color-text-secondary);
  cursor: pointer;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.topbar-btn:hover {
  background-color: var(--color-surface);
  color: var(--color-text-primary);
}

.topbar-btn .icon {
  width: 20px;
  height: 20px;
}

.user-btn {
  padding: 2px;
}

.avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, #3b82f6, #7c3aed);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 14px;
}

.avatar-sm {
  width: 32px;
  height: 32px;
  font-size: 13px;
}

.dropdown {
  position: relative;
}

.dropdown-menu,
.dropdown-right {
  position: absolute;
  top: 100%;
  right: 0;
  margin-top: 8px;
  background-color: var(--color-surface-elevated);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
  list-style: none;
  padding: 8px 0;
  min-width: 160px;
  display: none;
  z-index: 1001;
}

.dropdown.active .dropdown-menu,
.dropdown:focus-within .dropdown-menu {
  display: block;
}

.dropdown-menu li {
  display: block;
}

.dropdown-menu li a {
  display: block;
  padding: 10px 16px;
  color: var(--color-text-primary);
  text-decoration: none;
  font-size: 14px;
  transition: background-color var(--transition-fast);
}

.dropdown-menu li a:hover {
  background-color: var(--color-surface);
}

/* ============================================================================
   DASHBOARD PAGE
   ============================================================================ */

.dashboard-page {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.page-header {
  margin-bottom: 16px;
}

.page-header h1 {
  margin: 0 0 8px;
  font-size: 32px;
  font-weight: 700;
}

.page-header .text-muted {
  margin: 0;
  font-size: 16px;
  color: var(--color-text-secondary);
}

/* KPI Section */
.kpi-section {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.kpi-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 20px;
  transition: all var(--transition-base);
}

.kpi-card:hover {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 1px var(--color-primary);
}

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

.kpi-label {
  margin: 0;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.kpi-icon-box {
  width: 40px;
  height: 40px;
  border-radius: 6px;
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.2), rgba(124, 58, 237, 0.2));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
}

.kpi-body {
  margin-bottom: 12px;
}

.kpi-number {
  font-size: 32px;
  font-weight: 700;
  color: var(--color-text-primary);
  line-height: 1;
  margin-bottom: 4px;
}

.kpi-meta {
  font-size: 13px;
  color: var(--color-text-secondary);
}

.kpi-footer {
  display: flex;
  align-items: center;
  gap: 8px;
  padding-top: 12px;
  border-top: 1px solid var(--color-border);
}

/* Badges */
.badge {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 4px;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.badge-success {
  background-color: rgba(16, 185, 129, 0.2);
  color: #a7f3d0;
}

.badge-danger {
  background-color: rgba(239, 68, 68, 0.2);
  color: #fca5a5;
}

.badge-info {
  background-color: rgba(14, 165, 233, 0.2);
  color: #7dd3fc;
}

.badge-secondary {
  background-color: rgba(124, 58, 237, 0.2);
  color: #d8b4fe;
}

/* Dashboard Panels */
.dashboard-panels {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.panel {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  overflow: hidden;
}

.panel-full {
  grid-column: 1 / -1;
}

.panel-header {
  padding: 20px;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.panel-header h3 {
  margin: 0;
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text-primary);
}

.link-secondary {
  color: var(--color-primary);
  text-decoration: none;
  font-size: 13px;
  font-weight: 500;
  transition: color var(--transition-fast);
}

.link-secondary:hover {
  color: var(--color-primary-light);
}

.panel-body {
  padding: 20px;
}

.empty-state-compact {
  text-align: center;
  padding: 20px 0;
}

.empty-state-compact p {
  margin: 0 0 16px;
  color: var(--color-text-secondary);
}

/* Quick Actions */
.quick-actions-grid {
  margin-top: 32px;
}

.section-title {
  margin: 0 0 16px;
  font-size: 18px;
  font-weight: 600;
  color: var(--color-text-primary);
}

.action-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
}

.action-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 24px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  text-decoration: none;
  color: var(--color-text-primary);
  transition: all var(--transition-base);
  cursor: pointer;
}

.action-card:hover {
  border-color: var(--color-primary);
  background-color: rgba(59, 130, 246, 0.05);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.action-icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
}

.action-label {
  font-size: 14px;
  font-weight: 600;
  text-align: center;
}

/* ============================================================================
   TWO-COLUMN LAYOUT (Displays, Media)
   ============================================================================ */

.two-column-layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 24px;
  height: calc(100vh - 130px);
}

.left-panel {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  display: flex;
  flex-direction: column;
  overflow-y: auto;
}

.content-panel {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.folder-tree {
  padding: 8px 0;
}

.folder-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 16px;
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.folder-item:hover {
  background-color: var(--color-surface-elevated);
  color: var(--color-text-primary);
}

.folder-item.active {
  background-color: rgba(59, 130, 246, 0.15);
  color: var(--color-primary);
}

.folder-icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.folder-name {
  font-size: 14px;
  font-weight: 500;
}

.content-toolbar {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 8px;
}

.search-wrapper {
  flex: 1;
  position: relative;
  display: flex;
  align-items: center;
  background-color: var(--color-surface-elevated);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  padding: 8px 12px;
}

.search-icon {
  color: var(--color-text-tertiary);
  margin-right: 8px;
  flex-shrink: 0;
}

.search-field {
  flex: 1;
  background: none;
  border: none;
  color: var(--color-text-primary);
  font-size: 14px;
  outline: none;
  padding: 0;
}

.search-field::placeholder {
  color: var(--color-text-tertiary);
}

.toolbar-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.stat-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 12px;
}

.stat-box {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  padding: 12px;
  text-align: center;
}

.stat-label {
  font-size: 12px;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 8px;
}

.stat-value {
  font-size: 24px;
  font-weight: 700;
  color: var(--color-text-primary);
}

.text-success {
  color: #10b981;
}

.text-danger {
  color: #ef4444;
}

/* ============================================================================
   TABLES
   ============================================================================ */

.table-wrapper {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  overflow-x: auto;
}

.table {
  width: 100%;
  border-collapse: collapse;
  margin: 0;
  font-size: 14px;
}

.table thead {
  background-color: var(--color-surface-elevated);
  border-bottom: 1px solid var(--color-border);
}

.table thead th {
  padding: 12px 16px;
  text-align: left;
  font-weight: 600;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-size: 12px;
}

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

.table tbody tr:hover {
  background-color: var(--color-surface-elevated);
}

.table tbody td {
  padding: 12px 16px;
  color: var(--color-text-primary);
}

.table-striped tbody tr:nth-child(even) {
  background-color: rgba(59, 130, 246, 0.02);
}

/* ============================================================================
   MEDIA LIBRARY
   ============================================================================ */

.media-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
  padding: 16px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 8px;
}

.media-item {
  background-color: var(--color-surface-elevated);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  overflow: hidden;
  cursor: pointer;
  transition: all var(--transition-base);
}

.media-item:hover {
  border-color: var(--color-primary);
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.2);
  transform: translateY(-4px);
}

.media-thumbnail {
  position: relative;
  width: 100%;
  padding-bottom: 75%;
  overflow: hidden;
  background-color: var(--color-border);
}

.media-thumbnail img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.media-type-badge {
  position: absolute;
  top: 8px;
  right: 8px;
  background-color: rgba(0, 0, 0, 0.6);
  color: white;
  padding: 4px 8px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
}

.media-info {
  padding: 12px;
}

.media-name {
  margin: 0 0 4px;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.media-size {
  margin: 0;
  color: var(--color-text-tertiary);
}

/* ============================================================================
   BUTTONS
   ============================================================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 16px;
  border: none;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

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

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

.btn-outline {
  background-color: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-text-primary);
}

.btn-outline:hover {
  background-color: var(--color-surface);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.btn-sm {
  padding: 6px 12px;
  font-size: 13px;
}

.btn-ghost {
  background-color: transparent;
  color: var(--color-text-secondary);
  padding: 0;
}

.btn-ghost:hover {
  color: var(--color-text-primary);
}

/* ============================================================================
   UTILITY CLASSES
   ============================================================================ */

.text-muted {
  color: var(--color-text-secondary);
}

.text-tertiary {
  color: var(--color-text-tertiary);
}

.text-xs {
  font-size: 12px;
}

.text-sm {
  font-size: 14px;
}

.form-control {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  color: var(--color-text-primary);
  padding: 8px 12px;
  border-radius: 6px;
  font-size: 14px;
}

.form-control::placeholder {
  color: var(--color-text-tertiary);
}

.form-control:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

/* ============================================================================
   RESPONSIVE
   ============================================================================ */

@media (max-width: 768px) {
  .ots-topbar {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
    height: auto;
    padding: 12px 16px;
  }

  .topbar-right {
    width: 100%;
    flex-direction: column;
  }

  .topbar-search {
    width: 100%;
  }

  .two-column-layout {
    grid-template-columns: 1fr;
    height: auto;
  }

  .left-panel {
    max-height: 300px;
  }

  .dashboard-panels {
    grid-template-columns: 1fr;
  }

  .kpi-section {
    grid-template-columns: 1fr;
  }

  .action-cards {
    grid-template-columns: 1fr;
  }

  .media-grid {
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  }

  .ots-content {
    padding: 16px;
  }

  .ots-footer {
    padding: 12px 16px;
  }
}

/* Transition variable fallback */
:root {
  --transition-fast: 150ms ease-in-out;
  --transition-base: 200ms ease-in-out;
  --transition-slow: 300ms ease-in-out;
}