/* === Enhanced User Panel Styles === */

/* --- Space Logo Theme CSS Variables --- */
:root {
  /* Core Space Colors */
  --space-deep-blue: #0B1426;
  --space-navy: #162447;
  --space-purple: #1F4E79;
  --space-cosmic: #2E86AB;
  --space-stellar: #A23B72;
  --space-nebula: #F18F01;
  --space-aurora: #C73E1D;
  --space-starlight: #E8F4FD;
  --space-silver: #B8C5D6;
  --space-glow: #00D4FF;
  --space-accent: #FF6B9D;
  
  /* Primary Theme Colors */
  --primary-gradient-start: var(--space-glow);
  --primary-gradient-end: var(--space-cosmic);
  --primary-color: var(--space-glow);
  --primary-color-dark: var(--space-cosmic);
  --primary-color-light: rgba(0, 212, 255, 0.15);
  --secondary-color: var(--space-silver);
  --secondary-color-light: rgba(22, 36, 71, 0.3);
  --secondary-color-dark: var(--space-navy);
  --accent-color: var(--space-accent);
  --success-color: #4caf50;
  --danger-color: var(--space-aurora);
  --warning-color: var(--space-nebula);
  --info-color: var(--space-glow);
  
  /* Text Colors */
  --text-color: var(--space-starlight);
  --text-color-muted: var(--space-silver);
  --text-color-white: var(--space-starlight);
  --link-color: var(--space-glow);
  --link-hover-color: var(--space-accent);
  
  /* Background & Surface */
  --bg-color: linear-gradient(135deg, var(--space-deep-blue) 0%, var(--space-navy) 40%, var(--space-purple) 100%);
  --surface-color: rgba(22, 36, 71, 0.4);
  --border-color: rgba(232, 244, 253, 0.2);
  --input-border-color: rgba(232, 244, 253, 0.3);
  --input-focus-border-color: var(--space-glow);
  --input-focus-box-shadow: 0 0 0 4px rgba(0, 212, 255, 0.2);
  
  /* Typography */
  --font-family-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-family-display: 'Orbitron', 'Inter', sans-serif;
  
  /* Border Radius */
  --border-radius-sm: 8px;
  --border-radius-md: 12px;
  --border-radius-lg: 20px;
  --border-radius-xl: 24px;
  
  /* Shadows */
  --shadow-sm: 0 4px 15px rgba(11, 20, 38, 0.2);
  --shadow-md: 0 8px 32px rgba(0, 212, 255, 0.15);
  --shadow-lg: 0 20px 60px rgba(11, 20, 38, 0.4);
  --shadow-glow: 0 0 30px rgba(0, 212, 255, 0.3);
  
  /* Transitions */
  --transition-base: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fast: all 0.2s ease;
  --mobile-nav-width: 300px;
}

/* --- Dark Mode Variables --- */
[data-theme="dark"] {
  --primary-color: #4d9eff;
  --primary-color-dark: #3588eb;
  --primary-color-light: #1a2b42;
  --secondary-color: #8892b0;
  --secondary-color-light: #1e2139;
  --secondary-color-dark: #a8b2d1;
  --accent-color: #64ffda;
  --success-color: #4caf50;
  --danger-color: #f44336;
  --warning-color: #ff9800;
  --info-color: #2196f3;
  --text-color: #e2e8f0;
  --text-color-muted: #94a3b8;
  --text-color-white: #ffffff;
  --link-color: var(--primary-color);
  --link-hover-color: var(--primary-color-dark);
  --bg-color: #0f1419;
  --surface-color: #1a202c;
  --border-color: #2d3748;
  --input-border-color: #4a5568;
  --input-focus-border-color: var(--primary-color);
  --input-focus-box-shadow: 0 0 0 0.2rem rgba(77, 158, 255, 0.25);
  --shadow-sm: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.3);
  --shadow-md: 0 0.5rem 1rem rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 1rem 3rem rgba(0, 0, 0, 0.6);
}

/* --- Dark Mode Toggle Button --- */
.theme-toggle {
  display: none !important;
  visibility: hidden !important;
  opacity: 0 !important;
  pointer-events: none !important;
}

.theme-toggle:hover {
  transform: scale(1.1);
  box-shadow: var(--shadow-lg);
}

.theme-toggle:active {
  transform: scale(0.95);
}

.theme-toggle .theme-icon {
  transition: var(--transition-base);
}

/* Small Theme Toggle Button */
.theme-toggle-small {
  width: 36px;
  height: 36px;
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
  color: white;
  font-size: 0.9rem;
  margin-left: auto;
  position: relative;
  z-index: 100;
}

.theme-toggle-small:hover {
  background: rgba(0, 198, 255, 0.3);
  border-color: rgba(0, 198, 255, 0.6);
  transform: scale(1.1);
}

.theme-toggle-small .theme-icon {
  transition: all 0.3s ease;
  position: absolute;
}

/* Theme toggle icon visibility */
.theme-toggle-small .sun-icon {
  display: inline-block; /* Default show sun icon */
}

.theme-toggle-small .moon-icon {
  display: none;
}

/* Light mode - show sun icon only */
[data-theme="light"] .theme-toggle-small .sun-icon,
:root:not([data-theme]) .theme-toggle-small .sun-icon {
  display: inline-block !important;
}

[data-theme="light"] .theme-toggle-small .moon-icon,
:root:not([data-theme]) .theme-toggle-small .moon-icon {
  display: none !important;
}

/* Dark mode - show moon icon only */
[data-theme="dark"] .theme-toggle-small .moon-icon {
  display: inline-block !important;
}

[data-theme="dark"] .theme-toggle-small .sun-icon {
  display: none !important;
}

/* Dark Mode Theme Styles */
[data-theme="dark"] {
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%) !important;
  color: #e8f4f8 !important;
}

[data-theme="dark"] body {
  background: linear-gradient(135deg, #0a0e27 0%, #1a1a2e 50%, #16213e 100%) !important;
  color: #e8f4f8 !important;
}

[data-theme="dark"] .user-main-header,
[data-theme="dark"] .user-header {
  background: linear-gradient(135deg, #0f1419 0%, #1a2332 100%) !important;
  border-bottom: 1px solid rgba(56, 239, 125, 0.3) !important;
}

[data-theme="dark"] .user-container,
[data-theme="dark"] .user-page-container {
  background: linear-gradient(135deg, #0a0e27 0%, #1a1a2e 50%, #16213e 100%) !important;
  color: #e8f4f8 !important;
}

[data-theme="dark"] .user-main-content {
  background: transparent !important;
  color: #e8f4f8 !important;
}

[data-theme="dark"] .podcast-card,
[data-theme="dark"] .video-card,
[data-theme="dark"] .card {
  background: rgba(26, 41, 128, 0.15) !important;
  border: 1px solid rgba(56, 239, 125, 0.3) !important;
  color: #e8f4f8 !important;
}

[data-theme="dark"] .theme-toggle-small {
  background: rgba(56, 239, 125, 0.15) !important;
  border-color: rgba(56, 239, 125, 0.4) !important;
  color: #e8f4f8 !important;
}

[data-theme="dark"] .theme-toggle-small:hover {
  background: rgba(56, 239, 125, 0.3) !important;
  border-color: rgba(56, 239, 125, 0.7) !important;
}

[data-theme="dark"] .desktop-nav a,
[data-theme="dark"] .mobile-nav a {
  color: #e8f4f8 !important;
}

[data-theme="dark"] .desktop-nav a:hover,
[data-theme="dark"] .mobile-nav a:hover {
  color: #38ef7d !important;
}

[data-theme="dark"] .brand-text {
  color: #e8f4f8 !important;
}

/* Light Mode Theme Styles (default) */
[data-theme="light"] {
  background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
  color: #212529;
}

[data-theme="light"] .user-header {
  background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
  border-bottom: 1px solid rgba(0, 123, 255, 0.2);
}

/* Admin theme toggle - COMPLETELY HIDDEN */
.admin-theme-toggle {
  display: none !important;
  visibility: hidden !important;
  opacity: 0 !important;
  pointer-events: none !important;
}

/* --- Mobile Theme Toggle --- */
@media (max-width: 768px) {
  .theme-toggle {
    display: none !important;
  }
}

/* --- Dark Mode Adjustments for Existing Elements --- */
[data-theme="dark"] .hero-login-form,
[data-theme="dark"] .hero-welcome {
  background: rgba(26, 32, 44, 0.9);
  border: 1px solid var(--border-color);
}

[data-theme="dark"] .login-form input {
  background: var(--surface-color);
  border-color: var(--input-border-color);
  color: var(--text-color);
}

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

[data-theme="dark"] .alert-danger {
  background-color: rgba(244, 67, 54, 0.1);
  border-color: rgba(244, 67, 54, 0.3);
  color: #ff6b6b;
}

[data-theme="dark"] .modern-video-card,
[data-theme="dark"] .content-card,
[data-theme="dark"] .feature-card,
[data-theme="dark"] .podcast-card,
[data-theme="dark"] .category-card {
  background: var(--surface-color);
  border-color: var(--border-color);
}

[data-theme="dark"] .modern-video-card:hover,
[data-theme="dark"] .content-card:hover,
[data-theme="dark"] .feature-card:hover,
[data-theme="dark"] .podcast-card:hover,
[data-theme="dark"] .category-card:hover {
  box-shadow: var(--shadow-lg);
}

/* Dark mode for form elements */
[data-theme="dark"] input[type="text"],
[data-theme="dark"] input[type="search"],
[data-theme="dark"] input[type="email"],
[data-theme="dark"] input[type="password"],
[data-theme="dark"] textarea,
[data-theme="dark"] select {
  background: var(--surface-color);
  border-color: var(--input-border-color);
  color: var(--text-color);
}

[data-theme="dark"] input[type="text"]:focus,
[data-theme="dark"] input[type="search"]:focus,
[data-theme="dark"] input[type="email"]:focus,
[data-theme="dark"] input[type="password"]:focus,
[data-theme="dark"] textarea:focus,
[data-theme="dark"] select:focus {
  border-color: var(--input-focus-border-color);
  box-shadow: var(--input-focus-box-shadow);
}

/* Dark mode for status badges and tags */
[data-theme="dark"] .tag,
[data-theme="dark"] .category-tag,
[data-theme="dark"] .unit-tag {
  background: var(--primary-color-light);
  color: var(--primary-color);
  border-color: var(--primary-color);
}

[data-theme="dark"] .content-meta .category {
  background: var(--primary-color-light);
  color: var(--primary-color);
}

/* Dark mode for audio player */
[data-theme="dark"] .custom-audio-player {
  background: var(--surface-color);
  border-color: var(--border-color);
}

[data-theme="dark"] .progress-bar {
  background: var(--border-color);
}

[data-theme="dark"] .progress-fill {
  background: var(--primary-color);
}

[data-theme="dark"] .control-btn {
  background: var(--secondary-color-light);
  color: var(--text-color);
  border-color: var(--border-color);
}

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

/* Dark mode for pagination */
[data-theme="dark"] .pagination-nav,
[data-theme="dark"] .modern-pagination-nav {
  border-color: var(--border-color);
}

[data-theme="dark"] .page-item .page-link,
[data-theme="dark"] .modern-page-link {
  background: var(--surface-color);
  border-color: var(--border-color);
  color: var(--text-color);
}

[data-theme="dark"] .page-item:hover .page-link,
[data-theme="dark"] .modern-page-item:hover .modern-page-link {
  background: var(--primary-color);
  color: white;
}

[data-theme="dark"] .page-item.active .page-link,
[data-theme="dark"] .modern-page-item.active .modern-page-link {
  background: var(--primary-color);
  border-color: var(--primary-color);
  color: white;
}

/* Dark mode for mobile navigation */
[data-theme="dark"] .mobile-nav {
  background: var(--surface-color);
  border-color: var(--border-color);
}

[data-theme="dark"] .mobile-nav-header {
  border-color: var(--border-color);
}

/* Dark mode for video/podcast tabs */
[data-theme="dark"] .tab-nav {
  background: var(--surface-color);
  border-color: var(--border-color);
}

[data-theme="dark"] .tab-nav .tab-btn {
  background: transparent;
  color: var(--text-color-muted);
  border-color: var(--border-color);
}

[data-theme="dark"] .tab-nav .tab-btn.active,
[data-theme="dark"] .tab-nav .tab-btn:hover {
  background: var(--primary-color);
  color: white;
  border-color: var(--primary-color);
}

/* Dark mode for language selector */
[data-theme="dark"] .language-selector {
  background: var(--surface-color);
  border-color: var(--border-color);
  color: var(--text-color);
}

[data-theme="dark"] .language-selector:hover {
  background: var(--secondary-color-light);
}

[data-theme="dark"] .language-badge {
  background: var(--primary-color-light);
  color: var(--primary-color);
}

/* Dark mode for flipbook integration */
[data-theme="dark"] .flipbook-container {
  background: var(--surface-color);
  border-color: var(--border-color);
}

[data-theme="dark"] .flipbook-loading {
  background: var(--surface-color);
  color: var(--text-color);
}

/* Dark mode overrides for page headers and text elements */
[data-theme="dark"] .page-header {
  background: linear-gradient(135deg, var(--surface-color), var(--secondary-color-light));
}

[data-theme="dark"] .page-header h1 {
  color: var(--text-color);
}

[data-theme="dark"] .page-header p {
  color: var(--text-color-muted);
}

[data-theme="dark"] .filter-controls {
  background: var(--surface-color);
}

[data-theme="dark"] .filter-form .form-group i {
  color: var(--text-color-muted);
}

[data-theme="dark"] .filter-form .form-group input,
[data-theme="dark"] .filter-form .form-group select {
  background-color: var(--surface-color);
  border-color: var(--border-color);
  color: var(--text-color);
}

[data-theme="dark"] .filter-form .form-group input:focus,
[data-theme="dark"] .filter-form .form-group select:focus {
  background-color: var(--surface-color);
  border-color: var(--primary-color);
}

[data-theme="dark"] .button-filter {
  background-color: var(--primary-color);
}

[data-theme="dark"] .button-filter:hover {
  background-color: var(--primary-color-dark);
}

[data-theme="dark"] .podcast-card {
  background: var(--surface-color);
  border-color: var(--border-color);
}

[data-theme="dark"] .podcast-card-link:hover .podcast-card {
  border-color: var(--primary-color);
}

[data-theme="dark"] .podcast-card-category {
  background-color: var(--primary-color-light);
  color: var(--primary-color);
}

[data-theme="dark"] .podcast-card-title {
  color: var(--text-color);
}

[data-theme="dark"] .podcast-card-meta {
  color: var(--text-color-muted);
}

[data-theme="dark"] .podcast-card-description {
  color: var(--text-color);
}

[data-theme="dark"] .no-results {
  background: var(--surface-color);
}

[data-theme="dark"] .no-results i {
  color: var(--text-color-muted);
}

[data-theme="dark"] .no-results h2 {
  color: var(--text-color);
}

[data-theme="dark"] .no-results p {
  color: var(--text-color-muted);
}

[data-theme="dark"] .category-card {
  background: var(--surface-color);
  border-color: var(--border-color);
}

[data-theme="dark"] .category-card:hover {
  border-color: var(--primary-color);
}

[data-theme="dark"] .category-card-icon {
  color: var(--primary-color);
  background: var(--primary-color-light);
}

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

[data-theme="dark"] .category-card-description {
  color: var(--text-color-muted);
}

[data-theme="dark"] .category-card-count {
  color: var(--primary-color);
  background-color: var(--primary-color-light);
}

[data-theme="dark"] .profile-sidebar {
  background-color: var(--surface-color);
}

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

[data-theme="dark"] .profile-avatar-card .avatar-icon {
  color: var(--primary-color);
}

[data-theme="dark"] .profile-avatar-card h2 {
  color: var(--text-color);
}

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

[data-theme="dark"] .profile-join-date {
  color: var(--text-color-muted);
}

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

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

[data-theme="dark"] .profile-nav-link.active {
  background-color: var(--primary-color-light);
  color: var(--primary-color);
  border-left-color: var(--primary-color);
}

[data-theme="dark"] .profile-section-card {
  background-color: var(--surface-color);
}

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

[data-theme="dark"] .profile-form label {
  color: var(--text-color);
}

[data-theme="dark"] .profile-form input[type="text"],
[data-theme="dark"] .profile-form input[type="email"],
[data-theme="dark"] .profile-form input[type="password"] {
  background-color: var(--surface-color);
  border-color: var(--border-color);
  color: var(--text-color);
}

[data-theme="dark"] .profile-form input:focus {
  border-color: var(--primary-color);
}

[data-theme="dark"] .profile-form input:disabled {
  background-color: var(--secondary-color-light);
}

[data-theme="dark"] .profile-form small {
  color: var(--text-color-muted);
}

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

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

/* Additional dark mode overrides for modern video elements */
[data-theme="dark"] .modern-videos-hero {
  color: var(--text-color);
}

[data-theme="dark"] .modern-videos-hero-content h1 {
  color: var(--text-color);
}

[data-theme="dark"] .modern-videos-hero-content p {
  color: var(--text-color-muted);
}

[data-theme="dark"] .modern-videos-filters {
  background: var(--surface-color);
}

[data-theme="dark"] .modern-videos-search-input,
[data-theme="dark"] .modern-videos-filter-group select {
  background-color: var(--surface-color);
  border-color: var(--border-color);
  color: var(--text-color);
}

[data-theme="dark"] .modern-videos-search-input:focus,
[data-theme="dark"] .modern-videos-filter-group select:focus {
  border-color: var(--primary-color);
}

[data-theme="dark"] .modern-videos-filter-btn {
  background-color: var(--primary-color);
}

[data-theme="dark"] .modern-videos-filter-btn:hover {
  background-color: var(--primary-color-dark);
}

[data-theme="dark"] .modern-video-title {
  color: var(--text-color);
}

[data-theme="dark"] .modern-video-meta {
  color: var(--text-color-muted);
}

[data-theme="dark"] .modern-video-category {
  background-color: var(--primary-color-light);
  color: var(--primary-color);
}

[data-theme="dark"] .modern-video-uploader,
[data-theme="dark"] .modern-video-views {
  color: var(--text-color-muted);
}

[data-theme="dark"] .modern-video-desc {
  color: var(--text-color);
}

[data-theme="dark"] .modern-video-error-content h2 {
  color: var(--text-color);
}

[data-theme="dark"] .modern-video-error-content p {
  color: var(--text-color-muted);
}

[data-theme="dark"] .modern-video-description h3 {
  color: var(--text-color);
}

[data-theme="dark"] .modern-video-description p {
  color: var(--text-color);
}

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

[data-theme="dark"] .modern-section-count {
  color: var(--text-color-muted);
}

[data-theme="dark"] .modern-chapter-title {
  color: var(--text-color);
}

[data-theme="dark"] .modern-comment-author {
  color: var(--text-color);
}

[data-theme="dark"] .modern-comment-date {
  color: var(--text-color-muted);
}

[data-theme="dark"] .modern-comment-content {
  color: var(--text-color);
}

[data-theme="dark"] .modern-empty-state h3 {
  color: var(--text-color);
}

[data-theme="dark"] .modern-empty-state p {
  color: var(--text-color-muted);
}

[data-theme="dark"] .modern-login-prompt p {
  color: var(--text-color);
}

[data-theme="dark"] .modern-dashboard-welcome h1 {
  color: var(--text-color);
}

[data-theme="dark"] .modern-welcome-text p {
  color: var(--text-color-muted);
}

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

[data-theme="dark"] .modern-stat-content p {
  color: var(--text-color-muted);
}

[data-theme="dark"] .modern-section-title h2 {
  color: var(--text-color);
}

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

[data-theme="dark"] .modern-category-content p {
  color: var(--text-color-muted);
}

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

[data-theme="dark"] .modern-action-content p {
  color: var(--text-color-muted);
}

/* Dark mode for podcast player elements */
[data-theme="dark"] .podcast-title {
  color: var(--text-color);
}

[data-theme="dark"] .podcast-description h3 {
  color: var(--text-color);
}

[data-theme="dark"] .podcast-description p {
  color: var(--text-color);
}

[data-theme="dark"] .sidebar-card h3 {
  color: var(--text-color);
}

[data-theme="dark"] .detail-item .label {
  color: var(--text-color-muted);
}

[data-theme="dark"] .detail-item .value {
  color: var(--text-color);
}

[data-theme="dark"] .time-display {
  color: var(--text-color);
}

[data-theme="dark"] .no-audio-message {
  color: var(--text-color-muted);
}

/* Dark mode for basic elements */
[data-theme="dark"] body {
  background-color: var(--bg-color);
  color: var(--text-color);
}

[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-color);
}

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

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

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

[data-theme="dark"] .section-header h1 {
  color: var(--text-color);
}

[data-theme="dark"] .section-header p {
  color: var(--text-color-muted);
}

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

[data-theme="dark"] .card,
[data-theme="dark"] .card-header,
[data-theme="dark"] .card-body {
  background-color: var(--surface-color);
  border-color: var(--border-color);
  color: var(--text-color);
}

[data-theme="dark"] .video-info-primary h1 {
  color: var(--text-color);
}

[data-theme="dark"] .auth-container h2 {
  color: var(--text-color);
}

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

/* Dark mode for main header */
[data-theme="dark"] .user-main-header {
  background-color: var(--surface-color);
  border-bottom-color: var(--border-color);
}

[data-theme="dark"] .user-logo a {
  color: var(--primary-color);
}

[data-theme="dark"] .user-main-nav ul li a {
  color: var(--text-color-muted);
}

[data-theme="dark"] .user-main-nav ul li a:hover,
[data-theme="dark"] .user-main-nav ul li a.active {
  color: var(--primary-color);
}

[data-theme="dark"] .user-main-nav ul li a.active::after {
  background-color: var(--primary-color);
}

[data-theme="dark"] .user-search-bar input[type="search"] {
  background-color: var(--surface-color);
  border-color: var(--input-border-color);
  color: var(--text-color);
}

[data-theme="dark"] .user-search-bar input[type="search"]:focus {
  border-color: var(--input-focus-border-color);
  box-shadow: var(--input-focus-box-shadow);
}

[data-theme="dark"] .user-search-bar button {
  background-color: var(--secondary-color-light);
  border-color: var(--input-border-color);
  color: var(--text-color-muted);
}

[data-theme="dark"] .user-search-bar button:hover {
  background-color: var(--primary-color-light);
  color: var(--primary-color);
}

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

[data-theme="dark"] .mobile-nav-close {
  color: var(--text-color-muted);
}

[data-theme="dark"] .mobile-nav-header span {
  color: var(--text-color);
}

[data-theme="dark"] .mobile-search-bar input[type="search"] {
  background-color: var(--surface-color);
  border-color: var(--input-border-color);
  color: var(--text-color);
}

[data-theme="dark"] .mobile-search-bar button {
  background-color: var(--secondary-color-light);
  border-color: var(--input-border-color);
  color: var(--text-color-muted);
}

[data-theme="dark"] .mobile-nav ul li a {
  color: var(--text-color);
  border-bottom-color: var(--border-color);
}

[data-theme="dark"] .mobile-nav ul li a:hover,
[data-theme="dark"] .mobile-nav ul li a.active {
  background-color: var(--primary-color-light);
  color: var(--primary-color);
}

/* Dark mode for podcast and video header info */
[data-theme="dark"] .video-info-primary h1,
[data-theme="dark"] .podcast-header-info h1 {
  color: var(--text-color);
}

/* Fix modern videos hero with hardcoded colors */
[data-theme="dark"] .modern-videos-hero-content h1 {
  color: var(--text-color);
}

[data-theme="dark"] .modern-videos-hero-content p {
  color: var(--text-color-muted);
}

/* Dark mode for dashboard sections */
[data-theme="dark"] .modern-dashboard-section {
  background: var(--surface-color);
  border-color: var(--border-color);
}

[data-theme="dark"] .modern-section-header {
  border-bottom-color: var(--border-color);
}

[data-theme="dark"] .modern-section-title h2 {
  color: var(--text-color);
}

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

[data-theme="dark"] .modern-section-link:hover {
  color: var(--primary-color-dark);
}

/* Dark mode for dashboard video grid */
[data-theme="dark"] .modern-video-card {
  background: var(--surface-color);
  border-color: var(--border-color);
}

[data-theme="dark"] .modern-video-title {
  color: var(--text-color);
}

[data-theme="dark"] .modern-video-meta {
  color: var(--text-color-muted);
}

/* Dark mode for dashboard categories grid */
[data-theme="dark"] .modern-category-card {
  background: var(--surface-color);
  border-color: var(--border-color);
}

[data-theme="dark"] .modern-category-card:hover {
  background: var(--primary-color-light);
}

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

[data-theme="dark"] .modern-category-content p {
  color: var(--text-color-muted);
}

[data-theme="dark"] .modern-category-arrow {
  color: var(--text-color-muted);
}

/* Dark mode for dashboard actions grid */
[data-theme="dark"] .modern-action-card {
  background: var(--surface-color);
  border-color: var(--border-color);
}

[data-theme="dark"] .modern-action-card:hover {
  background: var(--primary-color-light);
}

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

[data-theme="dark"] .modern-action-content p {
  color: var(--text-color-muted);
}

/* Dark mode for empty states */
[data-theme="dark"] .modern-empty-state {
  color: var(--text-color-muted);
}

[data-theme="dark"] .modern-empty-state i {
  color: var(--text-color-muted);
}

[data-theme="dark"] .modern-empty-state h3 {
  color: var(--text-color);
}

[data-theme="dark"] .modern-empty-state p {
  color: var(--text-color-muted);
}

/* --- Base & Reset --- */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
/* Space Theme Base Styles */
@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;500;600;700;800;900&family=Inter:wght@300;400;500;600;700&display=swap');

body {
  font-family: var(--font-family-sans);
  background: 
    radial-gradient(ellipse at 80% 20%, var(--space-stellar) 0%, transparent 50%),
    radial-gradient(ellipse at 20% 80%, var(--space-cosmic) 0%, transparent 50%),
    linear-gradient(135deg, var(--space-deep-blue) 0%, var(--space-navy) 40%, var(--space-purple) 100%);
  background-attachment: fixed;
  color: var(--text-color);
  line-height: 1.6;
  font-size: 16px;
  margin: 0;
  padding: 0;
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
}

/* Space Particles Background */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: 
    radial-gradient(2px 2px at 20px 30px, var(--space-glow), transparent),
    radial-gradient(2px 2px at 40px 70px, var(--space-accent), transparent),
    radial-gradient(1px 1px at 90px 40px, var(--space-nebula), transparent),
    radial-gradient(1px 1px at 130px 80px, var(--space-starlight), transparent),
    radial-gradient(2px 2px at 160px 30px, var(--space-glow), transparent);
  background-repeat: repeat;
  background-size: 200px 100px;
  opacity: 0.2;
  z-index: 1;
  pointer-events: none;
  animation: sparkle 25s linear infinite;
}

@keyframes sparkle {
  from {
    transform: translateX(0);
  }
  to {
    transform: translateX(200px);
  }
}
body.no-scroll {
  overflow-y: hidden;
}

a {
  color: var(--link-color);
  text-decoration: none;
  transition: var(--transition-base);
}
a:hover {
  color: var(--link-hover-color);
  text-decoration: underline;
}
img {
  max-width: 100%;
  height: auto;
  display: block;
}
h1,
h2,
h3,
h4,
h5,
h6 {
  margin-top: 0;
  margin-bottom: 0.75rem;
  font-weight: 500;
  line-height: 1.2;
  color: var(--secondary-color-dark);
}
h1 {
  font-size: 2.25rem;
}
h2 {
  font-size: 1.875rem;
}
h3 {
  font-size: 1.5rem;
}
h4 {
  font-size: 1.125rem;
}
p {
  margin-bottom: 1rem;
}

/* --- Layout Containers --- */
.user-page-container {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}
.user-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 1rem;
  width: 100%;
}

/* Header flex layout for hamburger left, logo center/left, dark mode right */
.header-flex-container {
  display: flex;
  align-items: center;
  width: 100%;
}
.user-logo {
  flex: 1 1 auto;
  display: flex;
  align-items: center;
}
.header-controls {
  margin-left: auto;
  display: flex;
  align-items: center;
}
.mobile-nav-toggle {
  margin-right: 0.75rem;
  margin-left: 0;
  order: 0;
  z-index: 1101;
}
@media (max-width: 768px) {
  .mobile-nav-toggle {
    display: flex !important;
    width: 44px;
    height: 44px;
    font-size: 1.2rem;
    border-radius: 50%;
    background: var(--surface-color, #1a202c);
    box-shadow: var(--shadow-md, 0 0.5rem 1rem rgba(0,0,0,0.4));
    align-items: center;
    justify-content: center;
    border: 2px solid var(--border-color, #2d3748);
    color: var(--text-color, #fff);
    transition: background 0.2s, box-shadow 0.2s, color 0.2s;
  }
  .mobile-nav-toggle:hover {
    background: var(--primary-color, #9c27b0);
    color: #fff;
    box-shadow: var(--shadow-lg, 0 1rem 3rem rgba(0,0,0,0.6));
  }
}

.user-main-header {
  background: linear-gradient(135deg, 
    rgba(22, 36, 71, 0.4) 0%, 
    rgba(31, 78, 121, 0.3) 50%, 
    rgba(46, 134, 171, 0.2) 100%
  );
  backdrop-filter: blur(25px);
  border-bottom: 2px solid rgba(0, 212, 255, 0.3);
  box-shadow: 
    0 8px 32px rgba(11, 20, 38, 0.4),
    0 4px 16px rgba(0, 212, 255, 0.2),
    inset 0 1px 0 rgba(232, 244, 253, 0.1);
  position: sticky;
  top: 0;
  z-index: 1000;
  padding: 1rem 0;
  position: relative;
}

/* Removed animations and effects for cleaner look */

.user-logo a {
  color: var(--text-color-white);
  font-size: 1.5rem;
  font-weight: 700;
  text-decoration: none;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
  transition: all 0.3s ease;
}

.user-main-nav {
  display: flex;
  align-items: center;
}

.user-main-nav ul {
  display: flex;
  gap: 1rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.user-main-nav ul li a {
  color: var(--space-starlight);
  text-decoration: none;
  padding: 0.8rem 1.5rem;
  border-radius: var(--border-radius-md);
  transition: all 0.15s ease; /* Faster transition */
  font-size: 0.95rem;
  font-weight: 500;
  backdrop-filter: blur(15px);
  border: 2px solid rgba(232, 244, 253, 0.2);
  background: rgba(22, 36, 71, 0.3);
  position: relative;
  z-index: 100;
  cursor: pointer;
  display: inline-block;
}

/* Removed complex ::before animation that causes flickering */

.user-main-nav ul li a:hover,
.user-main-nav ul li a.active {
  color: var(--space-starlight);
  background: linear-gradient(135deg, 
    rgba(0, 212, 255, 0.3) 0%, 
    rgba(255, 107, 157, 0.2) 100%
  );
  border-color: var(--space-glow);
  box-shadow: 0 4px 15px rgba(0, 212, 255, 0.3); /* Simplified shadow */
  transform: translateY(-1px); /* Reduced movement */
}

/* Click state for instant feedback */
.user-main-nav ul li a:active {
  transform: translateY(0px);
  transition: none;
}

/* Theme toggle button */
.theme-toggle {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: white;
  margin-left: 1rem;
}

.theme-toggle:hover {
  background: rgba(255, 255, 255, 0.2);
}

/* Mobile navigation */
.mobile-nav-toggle {
  color: var(--text-color-white);
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.2);
  padding: 0.6rem;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.3s ease;
  display: none;
  backdrop-filter: blur(10px);
}

.mobile-nav-toggle:hover {
  background: rgba(255, 255, 255, 0.25);
}

.mobile-nav {
  background: linear-gradient(135deg, rgba(26, 41, 128, 0.95) 0%, rgba(38, 208, 206, 0.85) 50%, rgba(26, 41, 128, 0.95) 100%);
  border-left: 1px solid rgba(255, 255, 255, 0.2);
  position: fixed;
  top: 0;
  right: 0;
  width: var(--mobile-nav-width);
  max-width: 85%;
  height: 100vh;
  z-index: 1040;
  transform: translateX(100%);
  transition: transform 0.3s ease;
  backdrop-filter: blur(20px);
  box-shadow: -10px 0 30px rgba(0, 0, 0, 0.3);
}

@media (max-width: 768px) {
  .mobile-nav-toggle {
    display: block;
  }
  
  .user-main-nav {
    display: none;
  }
  
  .user-main-header {
    margin: 0 0.5rem 1rem 0.5rem;
  }
  
  .header-flex-container {
    padding: 0.5rem;
  }
}

/* --- Home Page Specific Styles --- */
.home-hero-section {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-color-dark) 100%);
  color: white;
  padding: 4rem 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.home-hero-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="50" cy="50" r="1" fill="white" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
  opacity: 0.3;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 800px;
  margin: 0 auto;
  padding: 0 1rem;
}

.hero-content h1 {
  font-size: 3rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: white;
}

.hero-content > p {
  font-size: 1.25rem;
  margin-bottom: 2rem;
  opacity: 0.9;
}

.hero-login-form {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border-radius: var(--border-radius-lg);
  padding: 2rem;
  margin-top: 2rem;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.hero-login-form h3 {
  color: white;
  margin-bottom: 1rem;
}

.login-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.login-form .form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.login-form label {
  color: white;
  font-weight: 500;
  font-size: 0.9rem;
}

.login-form input {
  padding: 0.75rem;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: var(--border-radius-md);
  background: rgba(255, 255, 255, 0.1);
  color: white;
  font-size: 1rem;
  transition: var(--transition-base);
}

.login-form input::placeholder {
  color: rgba(255, 255, 255, 0.7);
}

.login-form input:focus {
  outline: none;
  border-color: rgba(255, 255, 255, 0.8);
  background: rgba(255, 255, 255, 0.2);
}

.login-form .btn {
  background: white;
  color: var(--primary-color);
  border: none;
  padding: 0.75rem 1.5rem;
  border-radius: var(--border-radius-md);
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-base);
  margin-top: 0.5rem;
}

.login-form .btn:hover {
  background: var(--secondary-color-light);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.login-note {
  margin-top: 1rem;
  font-size: 0.9rem;
  opacity: 0.8;
  color: white;
}

.hero-welcome {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border-radius: var(--border-radius-lg);
  padding: 2rem;
  margin-top: 2rem;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.hero-welcome h3 {
  color: white;
  margin-bottom: 1rem;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  justify-content: center;
  margin-top: 1.5rem;
}

.hero-actions .btn {
  padding: 0.75rem 1.5rem;
  border-radius: var(--border-radius-md);
  font-weight: 600;
  text-decoration: none;
  transition: var(--transition-base);
  border: 2px solid transparent;
}

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

.hero-actions .btn-secondary {
  background: rgba(255, 255, 255, 0.2);
  color: white;
  border-color: rgba(255, 255, 255, 0.3);
}

.hero-actions .btn-outline {
  background: transparent;
  color: white;
  border-color: rgba(255, 255, 255, 0.5);
}

.hero-actions .btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* Features Section */
.features-section {
  padding: 4rem 0;
  background: var(--surface-color);
}

.features-section h2 {
  text-align: center;
  margin-bottom: 3rem;
  color: var(--secondary-color-dark);
}

.features-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.feature-card {
  text-align: center;
  padding: 2rem;
  border-radius: var(--border-radius-lg);
  background: var(--surface-color);
  box-shadow: var(--shadow-sm);
  transition: var(--transition-base);
  border: 1px solid var(--border-color);
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.feature-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 1.5rem;
  background: var(--primary-color-light);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-color);
  font-size: 2rem;
}

.feature-card h3 {
  margin-bottom: 1rem;
  color: var(--secondary-color-dark);
}

.feature-card p {
  color: var(--text-color-muted);
  line-height: 1.6;
}

/* Recent Content Section */
.recent-content-section {
  padding: 4rem 0;
  background: var(--bg-color);
}

.recent-content-section h2 {
  text-align: center;
  margin-bottom: 3rem;
  color: var(--secondary-color-dark);
}

.content-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.content-card {
  background: var(--surface-color);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition-base);
  border: 1px solid var(--border-color);
}

.content-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.content-thumbnail {
  position: relative;
  height: 200px;
  overflow: hidden;
}

.content-thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.placeholder-thumbnail {
  width: 100%;
  height: 100%;
  background: var(--secondary-color-light);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-color-muted);
  font-size: 3rem;
}

.content-info {
  padding: 1.5rem;
}

.content-info h3 {
  margin-bottom: 0.5rem;
  font-size: 1.25rem;
  color: var(--secondary-color-dark);
}

.content-meta {
  display: flex;
  gap: 1rem;
  margin-bottom: 1rem;
  font-size: 0.9rem;
  color: var(--text-color-muted);
}

.content-meta .category {
  background: var(--primary-color-light);
  color: var(--primary-color);
  padding: 0.25rem 0.5rem;
  border-radius: var(--border-radius-sm);
  font-weight: 500;
}

.content-excerpt {
  margin-bottom: 1rem;
  color: var(--text-color-muted);
  line-height: 1.5;
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.9rem;
  border-radius: var(--border-radius-md);
  background: var(--primary-color);
  color: white;
  text-decoration: none;
  display: inline-block;
  transition: var(--transition-base);
}

.btn-sm:hover {
  background: var(--primary-color-dark);
  color: white;
  text-decoration: none;
}

/* Alert Styles */
.alert {
  padding: 1rem;
  border-radius: var(--border-radius-md);
  margin-bottom: 1rem;
  border: 1px solid transparent;
}

.alert-danger {
  background-color: #f8d7da;
  border-color: #f5c6cb;
  color: #721c24;
}

/* Responsive Design for Home Page */
@media (min-width: 768px) {
  .hero-content h1 {
    font-size: 3.5rem;
  }
  
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .content-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 992px) {
  .features-grid {
    grid-template-columns: repeat(4, 1fr);
  }
  
  .content-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .hero-login-form,
  .hero-welcome {
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
  }
}

@media (min-width: 1200px) {
  .content-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* --- Header --- */
.user-main-header {
  background: linear-gradient(135deg, #8b1bab, #4c0677);
  padding: 1rem 0;
  position: relative;
  z-index: 100;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  border-radius: 0 0 20px 20px;
  margin: 0 1rem 1rem 1rem;
}
.user-main-header .header-flex-container {
  /* Renamed for clarity */
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.user-logo a {
  color: var(--text-color-white);
  font-size: 1.5rem;
  font-weight: 700;
  text-decoration: none;
  background: linear-gradient(to right, #ffffff, #e0e0e0);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Desktop Navigation & Search */
.desktop-nav {
  display: none;
} /* Hidden by default, shown on larger screens */
.desktop-search {
  display: none; /* Hidden by default */
}

.user-main-nav ul {
  list-style: none;
  display: flex;
  gap: 1.25rem; /* Adjusted gap */
}
.user-main-nav ul li a {
  color: rgba(255, 255, 255, 0.9);
  text-decoration: none;
  padding: 0.5rem 1rem;
  border-radius: 0.5rem;
  transition: all 0.3s ease;
  position: relative;
}
.user-main-nav ul li a:hover,
.user-main-nav ul li a.active {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.1);
}
.user-main-nav ul li a.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 50%;
  transform: translateX(-50%);
  width: 20px;
  height: 2px;
  background: #ffffff;
  border-radius: 2px;
}
.user-search-bar input[type="search"] {
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--input-border-color);
  border-radius: var(--border-radius-md) 0 0 var(--border-radius-md);
  font-size: 0.9rem;
  min-width: 200px; /* Adjusted */
  transition: var(--transition-base);
}
.user-search-bar input[type="search"]:focus {
  outline: none;
  border-color: var(--input-focus-border-color);
  box-shadow: var(--input-focus-box-shadow);
}
.user-search-bar button {
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--input-border-color);
  border-left: none;
  background-color: var(--secondary-color-light);
  border-radius: 0 var(--border-radius-md) var(--border-radius-md) 0;
  cursor: pointer;
  color: var(--text-color-muted);
  transition: var(--transition-base);
}
.user-search-bar button:hover {
  background-color: #e2e6ea;
}
.user-search-bar button i {
  font-size: 0.9rem;
}

/* Mobile Navigation Toggle */
.mobile-nav-toggle {
  color: var(--text-color-white);
  background: rgba(255, 255, 255, 0.1);
  border: none;
  padding: 0.5rem;
  border-radius: 0.5rem;
  cursor: pointer;
  transition: all 0.3s ease;
}

.mobile-nav-toggle:hover {
  background: rgba(255, 255, 255, 0.2);
}

/* Mobile Navigation Panel */
.mobile-nav {
  background: linear-gradient(135deg, #8b1bab, #4c0677);
  border-left: 1px solid rgba(255, 255, 255, 0.1);
  position: fixed;
  top: 0;
  right: 0;
  width: var(--mobile-nav-width);
  max-width: 85%;
  height: 100vh;
  box-shadow: -2px 0 10px rgba(0, 0, 0, 0.1);
  transform: translateX(100%);
  transition: transform 0.3s ease-in-out;
  z-index: 1040;
  display: flex;
  flex-direction: column;
  padding-bottom: 1rem; /* Space for last items */
}
.mobile-nav.open {
  transform: translateX(0);
}
.mobile-nav-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}
.mobile-nav-header span {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-color-white);
}
.mobile-nav-close {
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--text-color-muted);
  cursor: pointer;
  padding: 0.25rem;
}
.mobile-search-bar {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}
.mobile-search-bar form {
  display: flex;
}
.mobile-search-bar input[type="search"] {
  flex-grow: 1;
  padding: 0.6rem 0.8rem;
  font-size: 0.9rem;
  border: 1px solid var(--input-border-color);
  border-radius: var(--border-radius-md) 0 0 var(--border-radius-md);
}
.mobile-search-bar button {
  padding: 0.6rem 0.8rem;
  border: 1px solid var(--input-border-color);
  border-left: none;
  background-color: var(--secondary-color-light);
  border-radius: 0 var(--border-radius-md) var(--border-radius-md) 0;
  color: var(--text-color-muted);
}
.mobile-nav ul {
  list-style: none;
  padding: 0;
  margin: 0;
  flex-grow: 1;
  overflow-y: auto; /* Scroll if many items */
}
.mobile-nav ul li a {
  display: block;
  padding: 1.2rem 1.5rem;
  color: rgba(255, 255, 255, 0.95);
  text-decoration: none;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  border-radius: 15px;
  margin: 0.3rem 1rem;
  font-weight: 500;
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  position: relative;
  overflow: hidden;
}

.mobile-nav ul li a::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  transition: left 0.5s ease;
  pointer-events: none;
  z-index: -1;
}

.mobile-nav ul li a:hover::before {
  left: 100%;
}

.mobile-nav ul li a:hover,
.mobile-nav ul li a.active {
  background: rgba(255, 255, 255, 0.2);
  color: #ffffff;
  transform: translateX(5px);
  box-shadow: 0 4px 15px rgba(255, 255, 255, 0.3);
  border-color: rgba(255, 255, 255, 0.3);
}

/* Simplified mobile nav without animations */
.mobile-nav ul li:last-child a {
  border-bottom: none;
}
.mobile-nav-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease-in-out, visibility 0.3s ease-in-out;
  z-index: 1035;
}
.mobile-nav-overlay.open {
  opacity: 1;
  visibility: visible;
}

/* --- Main Content Area --- */
.user-main-content {
  flex-grow: 1;
  padding: 1.5rem 0; /* Adjusted padding */
}

/* --- Section Header --- */
.section-header {
  margin-bottom: 2rem; /* Adjusted */
  text-align: center;
}
.section-header h1 {
  font-size: 1.75rem; /* Adjusted for mobile */
  margin-bottom: 0.5rem;
}
.section-header p {
  font-size: 1rem; /* Adjusted */
  color: var(--text-color-muted);
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 500;
  padding: 0.75rem 1.25rem; /* Increased padding for touch */
  font-size: 0.9375rem;
  line-height: 1.5;
  border-radius: var(--border-radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: var(--transition-base);
  text-decoration: none;
  white-space: nowrap;
}
/* Other button styles (.btn-primary, etc.) remain the same */

/* --- Cards (General) --- */
.card,
.profile-card,
.dashboard-stat-card,
.dashboard-widget,
.content-filters,
.auth-container {
  margin-bottom: 1.25rem; /* Adjusted */
}
.card-header,
.profile-card h2,
.dashboard-widget h2 {
  padding: 0.875rem 1.25rem; /* Adjusted */
  font-size: 1.125rem; /* Adjusted */
}
.card-body,
.profile-card .profile-form,
.dashboard-widget .widget-content {
  padding: 1.25rem; /* Adjusted */
}

/* --- Video/Podcast Listing Page --- */
.video-grid,
.podcast-grid {
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); /* Adjusted minmax */
  gap: 1.25rem; /* Adjusted */
}
.video-card-content h3,
.podcast-card-content h3 {
  font-size: 1rem; /* Adjusted */
}

/* Content Filters */
.content-filters {
  padding: 1.25rem;
  margin-bottom: 1.5rem;
}
.content-filters form {
  gap: 1rem;
}
.content-filters .form-group {
  min-width: 100%; /* Stack on mobile */
}
@media (min-width: 576px) {
  /* Adjust stacking for slightly larger screens */
  .content-filters .form-group {
    min-width: calc(50% - 0.5rem); /* Two columns */
  }
  .content-filters .form-group:last-of-type {
    /* Allow button to take full width or align */
    min-width: auto;
  }
}
@media (min-width: 768px) {
  .content-filters .form-group {
    min-width: 200px; /* Revert to original for larger screens */
  }
}

/* --- Video/Podcast Player Page --- */
.video-player-container,
.podcast-player-container {
  flex-direction: column; /* Stack on mobile by default */
  gap: 1.5rem;
}
.video-sidebar-area,
.podcast-sidebar-content {
  min-width: auto; /* Allow full width */
  max-height: none;
}
.video-info-primary h1,
.podcast-header-info h1 {
  font-size: 1.5rem; /* Adjusted */
}
.pdf-viewer-wrapper iframe {
  min-height: 400px; /* Adjust for mobile */
}

/* --- Footer --- */
.user-main-footer {
  padding: 1.25rem 0;
  font-size: 0.8125rem; /* 13px */
}

/* --- My Profile Page --- */
.profile-grid {
  grid-template-columns: 1fr; /* Stack on mobile */
  gap: 1.5rem;
}

/* --- Auth Pages --- */
.auth-container {
  padding: 1.5rem;
  max-width: 100%;
}
.auth-container h2 {
  font-size: 1.5rem;
}

/* --- Alerts --- */
.alert {
  padding: 0.875rem 1rem;
  font-size: 0.9rem;
}

/* --- User Dashboard --- */
.dashboard-stats-grid,
.dashboard-content-area {
  grid-template-columns: 1fr; /* Stack on mobile */
  gap: 1.25rem;
}
.dashboard-stat-card p {
  font-size: 1.5rem;
}

/* --- Responsive Adjustments --- */

/* Small devices (landscape phones, 576px and up) */
@media (min-width: 576px) {
  .user-container {
    padding: 0 20px;
  }
  .section-header h1 {
    font-size: 2rem;
  }
  .section-header p {
    font-size: 1.125rem;
  }
  .video-grid,
  .podcast-grid {
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
  }
}

/* Medium devices (tablets, 768px and up) */
@media (min-width: 768px) {
  .user-logo a {
    font-size: 1.75rem;
  }
  .mobile-nav-toggle {
    display: none;
  } /* Hide hamburger */
  .desktop-nav {
    display: flex;
  } /* Show desktop nav */
  .desktop-search {
    display: block;
  }
  .user-main-header .header-flex-container {
    flex-wrap: nowrap; /* Prevent wrapping of logo, nav, search */
  }
  .user-main-nav {
    order: 0; /* Reset order */
    width: auto;
    margin-top: 0;
  }
  .user-search-bar {
    width: auto;
    margin-top: 0;
    margin-left: 1.5rem; /* Space between nav and search */
  }
  .video-player-container,
  .podcast-player-container {
    flex-direction: row; /* Side-by-side layout */
  }
  .video-main-area {
    flex: 3;
  }
  .video-sidebar-area {
    flex: 1;
    min-width: 300px;
  }
  .podcast-main-content {
    flex: 2;
  }
  .podcast-sidebar-content {
    flex: 1;
    min-width: 300px;
  }
  .profile-grid {
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  }
  .dashboard-stats-grid {
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  }
  .dashboard-content-area {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  }
}

/* Large devices (desktops, 992px and up) */
@media (min-width: 992px) {
  .user-main-nav ul {
    gap: 1.5rem;
  }
  .user-search-bar input[type="search"] {
    min-width: 220px;
  }
}

/* Extra large devices (large desktops, 1200px and up) */
@media (min-width: 1200px) {
  /* Any specific styles for very large screens */
}

/* --- Pagination (existing, ensure it's responsive) --- */
.pagination-nav {
  display: flex;
  justify-content: center;
  margin-top: 2.5rem;
  padding-bottom: 1rem;
  flex-wrap: wrap; /* Allow wrapping on small screens */
}
.pagination-list {
  display: flex;
  list-style: none;
  padding: 0;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-sm);
  overflow: hidden; /* Clips border-radius */
  flex-wrap: wrap; /* Allow page items to wrap */
}
.page-item .page-link {
  display: block;
  padding: 0.6rem 0.9rem; /* Adjusted padding */
  font-size: 0.9rem; /* Adjusted font size */
  color: var(--primary-color);
  background-color: var(--surface-color);
  border: 1px solid var(--border-color);
  border-left: none;
  transition: var(--transition-base);
  text-decoration: none;
  font-weight: 500;
}
.page-item:first-child .page-link {
  border-left: 1px solid var(--border-color);
}
.page-item:hover .page-link {
  background-color: var(--primary-color-light);
  color: var(--primary-color-dark);
}
.page-item.active .page-link {
  z-index: 1;
  color: #fff;
  background-color: var(--primary-color);
  border-color: var(--primary-color);
}
.page-item.disabled .page-link {
  color: var(--text-color-muted);
  pointer-events: none;
  cursor: default;
  background-color: var(--secondary-color-light);
}

/* --- Modern Videos Page Styles --- */
.modern-videos-hero {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-color-dark) 100%);
  color: #fff;
  padding: 3rem 0 2rem 0;
  text-align: center;
  margin-bottom: 0;
}
.modern-videos-hero-content h1 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--text-color-white);
}
.modern-videos-hero-content p {
  font-size: 1.15rem;
  color: var(--text-color-white);
  opacity: 0.95;
}

.modern-videos-filters {
  background: var(--surface-color);
  box-shadow: var(--shadow-sm);
  padding: 1.5rem 0 1rem 0;
  display: flex;
  justify-content: center;
  align-items: center;
  border-bottom: 1px solid var(--border-color);
}
.modern-videos-filter-form {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: center;
  width: 100%;
  max-width: 900px;
  justify-content: center;
}
.modern-videos-filter-group {
  display: flex;
  flex-direction: column;
  min-width: 200px;
}
.modern-videos-search-input,
.modern-videos-category-select {
  padding: 0.7rem 1rem;
  border: 1px solid var(--input-border-color);
  border-radius: var(--border-radius-md);
  font-size: 1rem;
  background: var(--bg-color);
  color: var(--text-color);
  transition: var(--transition-base);
}
.modern-videos-search-input:focus,
.modern-videos-category-select:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: var(--input-focus-box-shadow);
}
.modern-videos-filter-btn {
  padding: 0.7rem 1.5rem;
  font-size: 1rem;
  border-radius: var(--border-radius-md);
  font-weight: 600;
  background: var(--primary-color);
  color: #fff;
  border: none;
  transition: var(--transition-base);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.modern-videos-filter-btn:hover {
  background: var(--primary-color-dark);
}

.modern-videos-section {
  padding: 2.5rem 0 3rem 0;
  background: var(--bg-color);
  min-height: 60vh;
}
.modern-videos-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  max-width: 1200px;
  margin: 0 auto;
}
@media (min-width: 600px) {
  .modern-videos-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (min-width: 900px) {
  .modern-videos-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}
@media (min-width: 1200px) {
  .modern-videos-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.modern-video-card {
  background: var(--surface-color);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: var(--transition-base);
  border: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  min-height: 100%;
}
.modern-video-link {
  color: inherit;
  text-decoration: none;
  display: flex;
  flex-direction: column;
  height: 100%;
}
.modern-video-thumbnail-wrapper {
  position: relative;
  width: 100%;
  aspect-ratio: 16/9;
  background: var(--secondary-color-light);
  overflow: hidden;
}
.modern-video-thumbnail {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.3s cubic-bezier(.4,2,.6,1);
}
.modern-video-play-overlay {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,0.25);
  color: #fff;
  font-size: 2.5rem;
  opacity: 0;
  transition: opacity 0.2s;
  pointer-events: none;
}
.modern-video-card:hover .modern-video-thumbnail {
  transform: scale(1.05);
}
.modern-video-card:hover .modern-video-play-overlay {
  opacity: 1;
}
.modern-video-info {
  padding: 1.2rem 1rem 1rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.modern-video-title {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--secondary-color-dark);
  margin-bottom: 0.2rem;
  line-height: 1.3;
}
.modern-video-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  font-size: 0.95rem;
  color: var(--text-color-muted);
  margin-bottom: 0.2rem;
}
.modern-video-meta i {
  margin-right: 0.25em;
}
.modern-video-category {
  background: var(--primary-color-light);
  color: var(--primary-color);
  padding: 0.15rem 0.5rem;
  border-radius: var(--border-radius-sm);
  font-weight: 500;
}
.modern-video-uploader {
  color: var(--accent-color);
}
.modern-video-views {
  color: var(--secondary-color-dark);
}
.modern-video-desc {
  color: var(--text-color-muted);
  font-size: 0.98rem;
  margin-top: 0.2rem;
  min-height: 2.2em;
}

.modern-videos-empty {
  text-align: center;
  color: var(--text-color-muted);
  margin: 3rem 0 2rem 0;
  font-size: 1.2rem;
}
.modern-videos-empty i {
  font-size: 3rem;
  margin-bottom: 1rem;
  color: var(--primary-color);
}

/* Modern Pagination */
.modern-pagination-nav {
  display: flex;
  justify-content: center;
  margin-top: 2.5rem;
}
.modern-pagination-list {
  display: flex;
  gap: 0.5rem;
  list-style: none;
  padding: 0;
}
.modern-page-item {
  display: inline-block;
}
.modern-page-link {
  display: block;
  padding: 0.6rem 1.1rem;
  border-radius: var(--border-radius-md);
  background: var(--surface-color);
  color: var(--primary-color);
  font-weight: 500;
  border: 1px solid var(--border-color);
  text-decoration: none;
  transition: var(--transition-base);
}
.modern-page-item.active .modern-page-link,
.modern-page-link:hover {
  background: var(--primary-color);
  color: #fff;
  border-color: var(--primary-color);
}
.modern-page-item.disabled .modern-page-link {
  pointer-events: none;
  opacity: 0.5;
  background: var(--secondary-color-light);
  color: var(--text-color-muted);
}

/* Accessibility: visually hidden for screen readers */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  border: 0;
}

/* === Modern Video Player Styles === */

/* Video Player Page Layout */
.modern-video-player-page {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  max-width: 1400px;
  margin: 0 auto;
  padding: 2rem 1rem;
}

@media (min-width: 1200px) {
  .modern-video-player-page {
    grid-template-columns: 2fr 1fr;
    gap: 3rem;
  }
}

/* Error and Message States */
.modern-video-error {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 60vh;
  text-align: center;
}

.modern-video-error-content {
  max-width: 500px;
  padding: 3rem 2rem;
}

.modern-video-error-content i {
  font-size: 4rem;
  color: var(--danger-color);
  margin-bottom: 1rem;
}

.modern-video-error-content h2 {
  font-size: 2rem;
  margin-bottom: 1rem;
  color: var(--secondary-color-dark);
}

.modern-video-error-content p {
  font-size: 1.1rem;
  color: var(--text-color-muted);
  margin-bottom: 2rem;
}

.modern-video-message {
  margin-bottom: 2rem;
}

.modern-video-message .alert {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem 1.5rem;
  border-radius: var(--border-radius-lg);
  border: none;
  font-weight: 500;
}

.modern-video-message .alert i {
  font-size: 1.2rem;
}

/* Main Video Section */
.modern-video-main {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

/* Video Player Container */
.modern-video-player-container {
  background: var(--surface-color);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.modern-video-iframe-container {
  position: relative;
  width: 100%;
  padding-bottom: 56.25%; /* 16:9 aspect ratio */
}

.modern-video-iframe-container iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: none;
}

.modern-video-player {
  position: relative;
  width: 100%;
  background: #000;
}

.modern-video-player video {
  width: 100%;
  height: auto;
  display: block;
  border-radius: var(--border-radius-lg);
}

.modern-video-fallback {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 3rem 2rem;
  text-align: center;
  color: var(--text-color-muted);
}

.modern-video-fallback i {
  font-size: 3rem;
  color: var(--warning-color);
  margin-bottom: 1rem;
}

.modern-video-fallback p {
  font-size: 1.1rem;
  margin-bottom: 1.5rem;
}

.modern-video-unavailable {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 4rem 2rem;
  text-align: center;
  background: var(--surface-color);
  border-radius: var(--border-radius-lg);
  color: var(--text-color-muted);
}

.modern-video-unavailable i {
  font-size: 4rem;
  color: var(--secondary-color);
  margin-bottom: 1rem;
}

.modern-video-unavailable h3 {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
  color: var(--secondary-color-dark);
}

/* Video Information */
.modern-video-info {
  background: var(--surface-color);
  border-radius: var(--border-radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-md);
}

.modern-video-header {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.modern-video-title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--secondary-color-dark);
  line-height: 1.3;
  margin: 0;
}

.modern-video-stats {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.modern-video-views,
.modern-video-date {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-color-muted);
  font-size: 0.9rem;
}

.modern-video-views i,
.modern-video-date i {
  color: var(--primary-color);
}

.modern-video-meta {
  display: flex;
  gap: 2rem;
  margin-bottom: 1.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border-color);
  flex-wrap: wrap;
}

.modern-video-author,
.modern-video-category {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-color-muted);
  font-size: 0.95rem;
}

.modern-video-author i,
.modern-video-category i {
  color: var(--primary-color);
}

.modern-video-description h3 {
  font-size: 1.2rem;
  margin-bottom: 1rem;
  color: var(--secondary-color-dark);
}

.modern-video-description p {
  color: var(--text-color);
  line-height: 1.7;
  margin: 0;
}

/* Sidebar */
.modern-video-sidebar {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.modern-video-section {
  background: var(--surface-color);
  border-radius: var(--border-radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-md);
}

.modern-section-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border-color);
}

.modern-section-header i {
  color: var(--primary-color);
  font-size: 1.2rem;
}

.modern-section-header h3 {
  font-size: 1.3rem;
  margin: 0;
  color: var(--secondary-color-dark);
  flex: 1;
}

.modern-section-count {
  background: var(--primary-color);
  color: white;
  padding: 0.25rem 0.75rem;
  border-radius: 1rem;
  font-size: 0.8rem;
  font-weight: 600;
}

/* Chapters */
.modern-chapters-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.modern-chapter-item {
  border-radius: var(--border-radius-md);
  overflow: hidden;
  transition: var(--transition-base);
}

.modern-chapter-item:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.modern-chapter-link {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: 1rem;
  background: var(--secondary-color-light);
  color: var(--text-color);
  text-decoration: none;
  transition: var(--transition-base);
}

.modern-chapter-link:hover {
  background: var(--primary-color-light);
  color: var(--primary-color-dark);
  text-decoration: none;
}

.modern-chapter-time {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: var(--text-color-muted);
}

.modern-chapter-time i {
  color: var(--primary-color);
}

.modern-chapter-title {
  font-weight: 500;
  font-size: 0.95rem;
}

/* External link styling */
.modern-chapter-link .modern-chapter-time i {
  color: var(--primary-color);
}

/* Comments */
.modern-comments-container {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.modern-comments-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

/* === MOBILE HAMBURGER MENU & MOBILE OPTIMIZATION === */

/* Mobile Hamburger Button */
.mobile-hamburger {
  display: none;
  flex-direction: column;
  justify-content: space-around;
  width: 44px;
  height: 44px;
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 8px;
  cursor: pointer;
  padding: 10px;
  z-index: 1001;
  transition: all 0.3s ease;
  position: relative;
}

.hamburger-line {
  width: 22px;
  height: 3px;
  background: white;
  border-radius: 2px;
  transition: all 0.3s ease;
  transform-origin: center;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.4);
  margin: 2px 0;
}

.mobile-hamburger:hover {
  background: rgba(0, 198, 255, 0.2);
  border-color: rgba(0, 198, 255, 0.4);
}

.mobile-hamburger:hover .hamburger-line {
  background: #00c6ff;
  box-shadow: 0 0 8px rgba(0, 198, 255, 0.5);
}

/* Hamburger Animation */
.mobile-hamburger.active .hamburger-line:nth-child(1) {
  transform: rotate(45deg) translate(6px, 6px);
}

.mobile-hamburger.active .hamburger-line:nth-child(2) {
  opacity: 0;
}

.mobile-hamburger.active .hamburger-line:nth-child(3) {
  transform: rotate(-45deg) translate(6px, -6px);
}

/* Mobile Navigation Menu */
.mobile-nav {
  position: fixed;
  top: 0;
  right: -100%;
  width: 320px;
  height: 100vh;
  background: linear-gradient(135deg, rgba(26, 41, 128, 0.98) 0%, rgba(30, 32, 60, 0.98) 100%);
  backdrop-filter: blur(20px);
  z-index: 1000;
  transition: right 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: -10px 0 30px rgba(0, 0, 0, 0.3);
  overflow-y: auto;
}

.mobile-nav.open {
  right: 0;
}

.mobile-nav-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 24px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(0, 0, 0, 0.2);
}

.mobile-nav-header h3 {
  color: white;
  margin: 0;
  font-size: 1.2rem;
  font-weight: 600;
}

.mobile-nav-close {
  background: none;
  border: none;
  color: white;
  font-size: 24px;
  cursor: pointer;
  padding: 8px;
  border-radius: 50%;
  transition: all 0.3s ease;
}

.mobile-nav-close:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: rotate(90deg);
}

.mobile-nav-list {
  list-style: none;
  padding: 20px 0;
  margin: 0;
}

.mobile-nav-list li {
  margin: 0;
}

.mobile-nav-list a {
  display: flex;
  align-items: center;
  gap: 15px;
  padding: 16px 24px;
  color: rgba(255, 255, 255, 0.9);
  text-decoration: none;
  font-size: 1.1rem;
  font-weight: 500;
  transition: all 0.3s ease;
  border-left: 4px solid transparent;
}

.mobile-nav-list a:hover,
.mobile-nav-list a.active {
  background: rgba(0, 198, 255, 0.15);
  color: #00c6ff;
  border-left-color: #00c6ff;
  transform: translateX(8px);
}

.mobile-nav-list a i {
  font-size: 1.2rem;
  min-width: 20px;
}

.mobile-nav-list a.logout-link {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  margin-top: 20px;
  color: #ff6b6b;
}

.mobile-nav-list a.logout-link:hover {
  background: rgba(255, 107, 107, 0.15);
  color: #ff8a80;
  border-left-color: #ff6b6b;
}

/* Mobile Navigation Overlay */
.mobile-nav-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
}

.mobile-nav-overlay.open {
  opacity: 1;
  visibility: visible;
}

/* Prevent scroll when mobile menu is open */
body.mobile-nav-open {
  overflow: hidden;
}

/* === MOBILE RESPONSIVE OPTIMIZATIONS === */

  /* Header optimizations for mobile */
  @media (max-width: 768px) {
    .mobile-hamburger {
      display: flex !important;
      order: 1;
      background: rgba(255, 255, 255, 0.2) !important;
      border: 1px solid rgba(255, 255, 255, 0.4) !important;
      min-width: 44px;
      min-height: 44px;
      margin-right: 16px;
    }
    
    .mobile-hamburger:hover {
      background: rgba(0, 198, 255, 0.3) !important;
      border-color: rgba(0, 198, 255, 0.6) !important;
    }
    
    .user-main-nav.desktop-nav {
      display: none !important;
    }
    
    .user-main-header {
      padding: 12px 0;
      margin: 0 8px 16px 8px;
      border-radius: 0 0 16px 16px;
    }
    
    .header-flex-container {
      padding: 12px 20px;
      gap: 16px;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }
    
    .user-logo {
      order: 2;
      flex: 1;
      display: flex;
      justify-content: flex-start;
    }
    
    .theme-toggle-small {
      order: 3;
      width: 32px;
      height: 32px;
      font-size: 0.85rem;
      margin-left: 0;
    }
  
  .brand-text {
    font-size: 1.4rem;
  }
  
  .brand-logo, .space-logo {
    height: 36px !important;
  }
  
  /* Make content area more mobile-friendly */
  .user-container {
    padding: 0 12px;
  }
  
  .user-main-content {
    padding: 16px 0;
  }
  
  /* Optimize cards and grid layouts for mobile */
  .podcasts-grid,
  .modern-videos-grid {
    grid-template-columns: 1fr;
    gap: 16px;
    padding: 16px 0;
  }
  
  .modern-content-card,
  .modern-video-card {
    margin: 0 8px;
    padding: 16px;
  }
  
  /* Better button sizing for mobile */
  .btn, .button {
    min-height: 44px;
    padding: 12px 20px;
    font-size: 1rem;
  }
  
  /* Improve form elements for mobile */
  input, select, textarea {
    min-height: 44px;
    font-size: 16px; /* Prevents zoom on iOS */
  }
  
  /* Hero section optimization */
  .hero-section {
    margin: 8px;
    padding: 24px 16px;
    border-radius: 16px;
  }
  
  .hero-content {
    flex-direction: column;
    gap: 16px;
  }
  
  .hero-right h1 {
    font-size: 1.8rem;
    text-align: center;
  }
  
  .search-form {
    flex-direction: column;
    gap: 12px;
  }
  
  .search-input-wrapper,
  .category-select-wrapper {
    flex: 1;
    min-width: 100%;
  }
}

/* Extra small mobile devices */
@media (max-width: 480px) {
  .mobile-nav {
    width: 100%;
    right: -100%;
  }
  
  .user-container {
    padding: 0 8px;
  }
  
  .brand-text {
    font-size: 1.2rem;
  }
  
  .hero-right h1 {
    font-size: 1.6rem;
  }
  
  .modern-content-card,
  .modern-video-card {
    margin: 0 4px;
    padding: 12px;
  }
}