/* ===========================================
   DARK MODE TOGGLE - Floating Action Button
   =========================================== */

/* Light Theme Variables (Default) */
:root {
  --bg-primary: #f5f5f5;
  --bg-secondary: #ffffff;
  --bg-tertiary: #f8f9fa;
  --text-primary: #333333;
  --text-secondary: #666666;
  --text-muted: #888888;
  --border-color: #e0e0e0;
  --border-light: #f0f0f0;
  --accent-color: #054634;
  --accent-hover: #0a5a42;
  --shadow-light: rgba(0, 0, 0, 0.1);
  --shadow-medium: rgba(0, 0, 0, 0.15);
  --shadow-heavy: rgba(0, 0, 0, 0.25);
  --success-color: #28a745;
  --warning-color: #ffc107;
  --error-color: #dc3545;
  --info-color: #17a2b8;
}

/* Dark Theme Variables */
[data-theme="dark"] {
  --bg-primary: #1a1a1a;
  --bg-secondary: #2a2a2a;
  --bg-tertiary: #333333;
  --text-primary: #e0e0e0;
  --text-secondary: #b0b0b0;
  --text-muted: #888888;
  --border-color: #404040;
  --border-light: #555555;
  --accent-color: #054634;
  --accent-hover: #0a5a42;
  --shadow-light: rgba(0, 0, 0, 0.3);
  --shadow-medium: rgba(0, 0, 0, 0.4);
  --shadow-heavy: rgba(0, 0, 0, 0.6);
  --success-color: #40c057;
  --warning-color: #ffd43b;
  --error-color: #fa5252;
  --info-color: #339af0;
}

/* ===========================================
   DARK MODE FAB STYLING
   =========================================== */

.dark-mode-fab {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  border: none;
  background: var(--bg-secondary);
  color: var(--accent-color);
  box-shadow: 0 4px 12px var(--shadow-medium);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 10001;
  outline: none;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}

.dark-mode-fab:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 20px var(--shadow-heavy);
  background: var(--accent-color);
  color: white;
}

.dark-mode-fab:active {
  transform: scale(0.95);
  transition-duration: 0.1s;
}

.dark-mode-fab:focus-visible {
  outline: 2px solid var(--accent-color);
  outline-offset: 2px;
}

/* Icon animation */
.fab-icon {
  transition: transform 0.3s ease;
  display: inline-block;
}

.dark-mode-fab:hover .fab-icon {
  transform: rotate(15deg);
}

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

@media (max-width: 768px) {
  .dark-mode-fab {
    bottom: 16px;
    right: 16px;
    width: 48px;
    height: 48px;
    font-size: 20px;
  }
}

@media (max-width: 480px) {
  .dark-mode-fab {
    bottom: 12px;
    right: 12px;
    width: 44px;
    height: 44px;
    font-size: 18px;
  }
}

/* ===========================================
   DARK THEME APPLICATION
   =========================================== */

/* Apply dark theme to common elements */
[data-theme="dark"] body {
  background: var(--bg-primary);
  color: var(--text-primary);
}

[data-theme="dark"] .app-sidebar {
  background: var(--bg-secondary);
  color: var(--text-primary);
}

[data-theme="dark"] .sticky-header-container,
[data-theme="dark"] .menu-bar {
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
}

[data-theme="dark"] .header {
  background: var(--accent-color);
}

[data-theme="dark"] .nav-link {
  color: var(--text-primary);
}

[data-theme="dark"] .nav-link:hover,
[data-theme="dark"] .nav-link.active {
  background: var(--bg-tertiary);
}

[data-theme="dark"] .user-profile,
[data-theme="dark"] .sidebar-close-btn {
  border-color: var(--border-color);
}

[data-theme="dark"] .program-card,
[data-theme="dark"] .coordinator-card,
[data-theme="dark"] .dept-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
}

[data-theme="dark"] .program-card:hover,
[data-theme="dark"] .coordinator-card:hover,
[data-theme="dark"] .dept-card:hover {
  background: var(--bg-tertiary);
  box-shadow: 0 4px 12px var(--shadow-medium);
}

[data-theme="dark"] h1, [data-theme="dark"] h2, [data-theme="dark"] h3,
[data-theme="dark"] h4, [data-theme="dark"] h5, [data-theme="dark"] h6 {
  color: var(--text-primary);
}

[data-theme="dark"] p, [data-theme="dark"] span, [data-theme="dark"] div {
  color: var(--text-primary);
}

[data-theme="dark"] .status, [data-theme="dark"] .program-details,
[data-theme="dark"] .coordinator-info, [data-theme="dark"] .dept-info {
  color: var(--text-secondary);
}

[data-theme="dark"] .search-container input {
  background: var(--bg-secondary);
  border-color: var(--border-color);
  color: var(--text-primary);
}

[data-theme="dark"] .search-container input::placeholder {
  color: var(--text-muted);
}

[data-theme="dark"] .search-container input:focus {
  border-color: var(--accent-color);
  box-shadow: 0 0 0 3px rgba(74, 222, 128, 0.1);
}

[data-theme="dark"] .create-btn,
[data-theme="dark"] .search-btn {
  background: var(--accent-color);
  color: white;
}

[data-theme="dark"] .create-btn:hover,
[data-theme="dark"] .search-btn:hover {
  background: var(--accent-hover);
}

[data-theme="dark"] .tab-container {
  border-color: var(--border-color);
}

[data-theme="dark"] .tab {
  background: var(--bg-secondary);
  color: var(--text-primary);
  border-color: var(--border-color);
}

[data-theme="dark"] .tab.active {
  background: var(--accent-color);
  color: white;
}

[data-theme="dark"] .pagination button {
  background: var(--accent-color);
  color: white;
}

[data-theme="dark"] .pagination button:hover {
  background: var(--accent-hover);
}

[data-theme="dark"] .pagination button:disabled {
  background: var(--bg-tertiary);
  color: var(--text-muted);
}

/* Form elements */
[data-theme="dark"] input, [data-theme="dark"] textarea, [data-theme="dark"] select {
  background: var(--bg-secondary);
  border-color: var(--border-color);
  color: var(--text-primary);
}

[data-theme="dark"] input:focus, [data-theme="dark"] textarea:focus, [data-theme="dark"] select:focus {
  border-color: var(--accent-color);
  box-shadow: 0 0 0 3px rgba(74, 222, 128, 0.1);
}

/* Modal overlays and content */
[data-theme="dark"] .modal, [data-theme="dark"] .modal-content {
  background: var(--bg-secondary);
  color: var(--text-primary);
}

[data-theme="dark"] .modal-content {
  border: 1px solid var(--border-color);
}

/* Links */
[data-theme="dark"] a {
  color: var(--accent-color);
}

[data-theme="dark"] a:hover {
  color: var(--accent-hover);
}

/* Tables */
[data-theme="dark"] table, [data-theme="dark"] th, [data-theme="dark"] td {
  border-color: var(--border-color);
}

[data-theme="dark"] th {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

[data-theme="dark"] tr:nth-child(even) {
  background: var(--bg-tertiary);
}

/* Notifications */
[data-theme="dark"] .note {
  background: var(--bg-tertiary);
  border-left-color: var(--accent-color);
}

[data-theme="dark"] .note.high {
  border-left-color: var(--error-color);
  background: rgba(250, 82, 82, 0.1);
}

[data-theme="dark"] .note.medium {
  border-left-color: var(--warning-color);
  background: rgba(255, 212, 59, 0.1);
}

[data-theme="dark"] .header-nav {
  background: var(--bg-secondary);
}

[data-theme="dark"] .nav-dropdown-content {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  box-shadow: 0 4px 12px var(--shadow-medium);
}

[data-theme="dark"] .nav-dropdown-toggle {
  color: var(--text-primary);
}

[data-theme="dark"] .nav-dropdown-toggle:hover {
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
}

/* Article cards */
[data-theme="dark"] .article-card {
  background: var(--bg-secondary);
  border-color: var(--border-color);
  color: var(--text-primary);
}

[data-theme="dark"] .article-card:hover {
  border-color: var(--accent-color);
  box-shadow: 0 4px 12px var(--shadow-medium);
}

[data-theme="dark"] .article-card h4 {
  color: var(--text-primary);
}

[data-theme="dark"] .article-card p {
  color: var(--text-secondary);
}

/* Articles section */
[data-theme="dark"] .articles-section {
  background: var(--bg-primary);
  color: var(--text-primary);
}

[data-theme="dark"] .articles-section h3 {
  color: var(--text-primary);
}

/* No programs message */
[data-theme="dark"] .no-programs {
  background: var(--bg-secondary);
  color: var(--text-muted);
  border: 1px solid var(--border-color);
}

/* Dropdown content links */
[data-theme="dark"] .nav-dropdown-content a {
  color: var(--text-primary);
}

[data-theme="dark"] .nav-dropdown-content a:hover {
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
}

/* Footer */
[data-theme="dark"] .footer {
  background: #000000;
  color: var(--text-primary);
}

[data-theme="dark"] .footer-left,
[data-theme="dark"] .footer-right {
  color: var(--text-secondary);
}

/* Program Modals */
[data-theme="dark"] .program-modal-overlay {
  background: rgba(0, 0, 0, 0.8);
}

[data-theme="dark"] .program-modal {
  background: var(--bg-secondary);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

[data-theme="dark"] .program-modal-header {
  background: var(--bg-tertiary);
  border-bottom: 1px solid var(--border-color);
}

[data-theme="dark"] .program-modal-header h3 {
  color: var(--text-primary);
}

[data-theme="dark"] .program-modal-close {
  color: var(--text-primary);
  background: var(--bg-tertiary);
}

[data-theme="dark"] .program-modal-close:hover {
  background: var(--border-color);
}

[data-theme="dark"] .program-modal-content {
  background: var(--bg-secondary);
}

[data-theme="dark"] .program-modal-body {
  color: var(--text-primary);
}

[data-theme="dark"] .program-modal-body p {
  color: var(--text-secondary);
}

[data-theme="dark"] .program-modal-body strong {
  color: var(--text-primary);
}

/* Modal carousel */
[data-theme="dark"] .modal-carousel-arrow {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

[data-theme="dark"] .modal-carousel-arrow:hover {
  background: var(--accent-color);
  color: white;
}

[data-theme="dark"] .modal-thumbs img {
  border: 1px solid var(--border-color);
}

[data-theme="dark"] .modal-thumbs img.active {
  border-color: var(--accent-color);
}

/* Confirmation Modals */
[data-theme="dark"] .confirm-modal-overlay {
  background: rgba(0, 0, 0, 0.8);
}

[data-theme="dark"] .confirm-modal {
  background: var(--bg-secondary);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

[data-theme="dark"] .confirm-modal-header {
  background: var(--bg-tertiary);
  border-bottom: 1px solid var(--border-color);
}

[data-theme="dark"] .confirm-modal-header h3 {
  color: var(--text-primary);
}

[data-theme="dark"] .confirm-modal-body {
  color: var(--text-primary);
}

[data-theme="dark"] .confirm-modal-body p {
  color: var(--text-secondary);
}

[data-theme="dark"] .confirm-modal-footer {
  background: var(--bg-tertiary);
  border-top: 1px solid var(--border-color);
}

[data-theme="dark"] .confirm-modal-footer .btn-secondary {
  background: var(--bg-secondary);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

[data-theme="dark"] .confirm-modal-footer .btn-secondary:hover {
  background: var(--bg-tertiary);
}

[data-theme="dark"] .confirm-modal-footer .btn-primary {
  background: var(--accent-color);
  color: white;
}

[data-theme="dark"] .confirm-modal-footer .btn-primary:hover {
  background: var(--accent-hover);
}

/* Coordinator Modals */
[data-theme="dark"] .modal-overlay {
  background: rgba(0, 0, 0, 0.8);
}

[data-theme="dark"] .modal {
  background: var(--bg-secondary);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

[data-theme="dark"] .modal-header {
  background: var(--bg-tertiary);
  border-bottom: 1px solid var(--border-color);
}

[data-theme="dark"] .modal-header h2 {
  color: var(--text-primary);
}

[data-theme="dark"] .modal-close {
  color: var(--text-primary);
  background: var(--bg-tertiary);
}

[data-theme="dark"] .modal-close:hover {
  background: var(--border-color);
}

[data-theme="dark"] .modal-body {
  color: var(--text-primary);
}

[data-theme="dark"] .modal-footer {
  background: var(--bg-tertiary);
  border-top: 1px solid var(--border-color);
}

[data-theme="dark"] .modal-footer .btn-secondary {
  background: var(--bg-secondary);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

[data-theme="dark"] .modal-footer .btn-secondary:hover {
  background: var(--bg-tertiary);
}

[data-theme="dark"] .modal-footer .btn-primary {
  background: var(--accent-color);
  color: white;
}

[data-theme="dark"] .modal-footer .btn-primary:hover {
  background: var(--accent-hover);
}

/* Image Modals */
[data-theme="dark"] .image-modal {
  background: rgba(0, 0, 0, 0.9);
}

[data-theme="dark"] .image-modal-content {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
}

[data-theme="dark"] .image-modal-close {
  color: var(--text-primary);
  background: var(--bg-tertiary);
}

[data-theme="dark"] .image-modal-close:hover {
  background: var(--border-color);
}

/* About Pages Content */
[data-theme="dark"] .content-card {
  background: var(--bg-secondary);
  border-left-color: var(--accent-color);
  color: var(--text-primary);
}

[data-theme="dark"] .content-section h3 {
  color: var(--text-primary);
}

[data-theme="dark"] .sidebar-card {
  border-bottom-color: var(--border-color);
}

[data-theme="dark"] .sidebar-card .category-info h4 {
  color: var(--text-primary);
}

[data-theme="dark"] .sidebar-card .category-info p {
  color: var(--text-secondary);
}

[data-theme="dark"] .sidebar-card:hover h4 {
  color: var(--accent-color);
}

[data-theme="dark"] .sidebar-card.active h4 {
  color: var(--accent-color);
}

/* Loading and status messages */
[data-theme="dark"] .loading-message {
  color: var(--text-secondary);
}

/* About Pages Content Text */
[data-theme="dark"] .content-text {
  color: var(--text-primary) !important;
}

[data-theme="dark"] .content-text h4 {
  color: var(--text-primary) !important;
}

[data-theme="dark"] .content-text p {
  color: var(--text-secondary) !important;
}

[data-theme="dark"] .division-item h4 {
  color: var(--text-primary) !important;
}

[data-theme="dark"] .division-item p {
  color: var(--text-secondary) !important;
}
[data-theme="dark"] .placeholder,
[data-theme="dark"] .loading {
  background: var(--bg-tertiary);
  color: var(--text-muted);
}

/* Ensure proper contrast for accessibility */
[data-theme="dark"] .required::after {
  color: var(--error-color);
}

[data-theme="dark"] .error-message {
  background: rgba(250, 82, 82, 0.1);
  border-color: var(--error-color);
  color: var(--text-primary);
}

[data-theme="dark"] .success-message {
  background: rgba(64, 192, 87, 0.1);
  border-color: var(--success-color);
  color: var(--text-primary);
}

/* Animation for theme transitions */
* {
  transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

/* Reduce motion for users who prefer it */
@media (prefers-reduced-motion: reduce) {
  *,
  .dark-mode-fab,
  .fab-icon {
    transition: none !important;
  }

  .dark-mode-fab:hover {
    transform: none !important;
  }
}