/* ======================================================================
   BrainSAIT Theme System - Brain CWA UI
   Colors: Black/White base + Vibrant Navy Blue (#1e40af) secondary
   ====================================================================== */

/* CSS Custom Properties (Variables) */
:root {
  /* Base Colors */
  --color-white: #ffffff;
  --color-black: #000000;
  --color-navy: #1e40af;
  --color-navy-light: #3b82f6;
  --color-navy-dark: #1e3a8a;
  
  /* Gray Scale */
  --color-gray-50: #f9fafb;
  --color-gray-100: #f3f4f6;
  --color-gray-200: #e5e7eb;
  --color-gray-300: #d1d5db;
  --color-gray-400: #9ca3af;
  --color-gray-500: #6b7280;
  --color-gray-600: #4b5563;
  --color-gray-700: #374151;
  --color-gray-800: #1f2937;
  --color-gray-900: #111827;
  
  /* Accent Colors */
  --color-green: #10b981;
  --color-green-light: #34d399;
  --color-red: #ef4444;
  --color-orange: #f59e0b;
  --color-purple: #8b5cf6;
  --color-blue: var(--color-navy);
  
  /* Typography */
  --font-inter: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', Consolas, 'Liberation Mono', monospace;
  
  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  
  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 300ms ease;
  --transition-slow: 500ms ease;
  
  /* Z-Index Scale */
  --z-dropdown: 1000;
  --z-modal: 1050;
  --z-toast: 1100;
  --z-loading: 1200;
}

/* Light Theme (Default) */
[data-theme="light"] {
  --bg-primary: var(--color-white);
  --bg-secondary: var(--color-gray-50);
  --bg-tertiary: var(--color-gray-100);
  --bg-accent: var(--color-navy);
  
  --text-primary: var(--color-gray-900);
  --text-secondary: var(--color-gray-600);
  --text-tertiary: var(--color-gray-400);
  --text-accent: var(--color-navy);
  --text-inverse: var(--color-white);
  
  --border-primary: var(--color-gray-200);
  --border-secondary: var(--color-gray-300);
  --border-accent: var(--color-navy);
  
  --shadow-color: rgb(0 0 0 / 0.1);
}

/* Dark Theme */
[data-theme="dark"] {
  --bg-primary: var(--color-gray-900);
  --bg-secondary: var(--color-gray-800);
  --bg-tertiary: var(--color-gray-700);
  --bg-accent: var(--color-navy-light);
  
  --text-primary: var(--color-white);
  --text-secondary: var(--color-gray-300);
  --text-tertiary: var(--color-gray-500);
  --text-accent: var(--color-navy-light);
  --text-inverse: var(--color-gray-900);
  
  --border-primary: var(--color-gray-700);
  --border-secondary: var(--color-gray-600);
  --border-accent: var(--color-navy-light);
  
  --shadow-color: rgb(0 0 0 / 0.3);
}

/* Reset and Base Styles */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  line-height: 1.15;
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-inter);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  transition: background-color var(--transition-normal), color var(--transition-normal);
}

/* Utility Classes */
.font-inter { font-family: var(--font-inter); }
.font-mono { font-family: var(--font-mono); }
.antialiased { -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }

.hidden { display: none !important; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }

/* Loading Screen */
.loading-screen {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: var(--z-loading);
  transition: opacity var(--transition-slow), visibility var(--transition-slow);
}

.loading-screen.hidden {
  opacity: 0;
  visibility: hidden;
}

.loading-content {
  text-align: center;
  animation: fadeInUp 0.8s ease-out;
}

.brain-logo {
  position: relative;
  margin-bottom: var(--space-6);
  display: inline-block;
}

.brain-icon {
  font-size: 4rem;
  position: relative;
  z-index: 2;
  animation: pulse 2s infinite;
}

.pulse-ring {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 120px;
  height: 120px;
  border: 2px solid var(--color-navy);
  border-radius: 50%;
  animation: pulseRing 2s infinite;
}

.loading-title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-2);
}

.loading-subtitle {
  font-size: 1rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-8);
}

.loading-bar {
  width: 200px;
  height: 4px;
  background: var(--bg-tertiary);
  border-radius: var(--radius-sm);
  overflow: hidden;
  margin: 0 auto;
}

.loading-progress {
  height: 100%;
  background: linear-gradient(90deg, var(--color-navy), var(--color-navy-light));
  border-radius: var(--radius-sm);
  animation: loadingProgress 2s infinite;
}

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 72px;
  background: var(--bg-primary);
  border-bottom: 1px solid var(--border-primary);
  backdrop-filter: blur(10px);
  z-index: 100;
  transition: all var(--transition-normal);
}

.nav-container {
  max-width: 1440px;
  margin: 0 auto;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--space-6);
}

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

.brand-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  color: var(--text-primary);
  transition: transform var(--transition-fast);
}

.brand-logo:hover {
  transform: scale(1.02);
}

.brand-logo .brain-icon {
  font-size: 2rem;
  animation: gentlePulse 3s infinite;
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.brand-main {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
}

.brand-sub {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-accent);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.nav-link {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-lg);
  text-decoration: none;
  color: var(--text-secondary);
  font-weight: 500;
  transition: all var(--transition-fast);
  position: relative;
}

.nav-link:hover {
  color: var(--text-accent);
  background: var(--bg-secondary);
  transform: translateY(-1px);
}

.nav-link.active {
  color: var(--text-accent);
  background: var(--bg-secondary);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 50%;
  transform: translateX(-50%);
  width: 20px;
  height: 2px;
  background: var(--color-navy);
  border-radius: var(--radius-sm);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.theme-toggle,
.language-toggle {
  position: relative;
  width: 40px;
  height: 40px;
  border: none;
  border-radius: var(--radius-lg);
  background: var(--bg-secondary);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
}

.theme-toggle:hover,
.language-toggle:hover {
  background: var(--bg-tertiary);
  color: var(--text-accent);
  transform: scale(1.05);
}

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

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

[data-theme="dark"] .theme-toggle .moon-icon {
  display: block;
}

.language-toggle {
  font-size: 0.75rem;
  font-weight: 600;
}

.language-toggle .lang-ar {
  display: none;
}

[dir="rtl"] .language-toggle .lang-en {
  display: none;
}

[dir="rtl"] .language-toggle .lang-ar {
  display: block;
}

.user-menu {
  position: relative;
}

.user-avatar {
  width: 40px;
  height: 40px;
  border: none;
  border-radius: 50%;
  background: var(--bg-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
  position: relative;
  overflow: hidden;
}

.user-avatar:hover {
  transform: scale(1.05);
  box-shadow: 0 0 0 3px var(--color-navy-light);
}

.user-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.user-status {
  position: absolute;
  bottom: 2px;
  right: 2px;
  width: 12px;
  height: 12px;
  background: var(--color-green);
  border: 2px solid var(--bg-primary);
  border-radius: 50%;
}

.user-dropdown {
  position: absolute;
  top: calc(100% + var(--space-2));
  right: 0;
  min-width: 220px;
  background: var(--bg-primary);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: var(--space-2);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all var(--transition-fast);
  z-index: var(--z-dropdown);
}

.user-menu.active .user-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.user-info {
  padding: var(--space-3);
  border-bottom: 1px solid var(--border-primary);
  margin-bottom: var(--space-2);
}

.user-name {
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-1);
}

.user-email {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.dropdown-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  width: 100%;
  padding: var(--space-2) var(--space-3);
  border: none;
  background: none;
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.875rem;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.dropdown-item:hover {
  background: var(--bg-secondary);
  color: var(--text-primary);
}

.dropdown-divider {
  height: 1px;
  background: var(--border-primary);
  margin: var(--space-2) 0;
}

.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  width: 40px;
  height: 40px;
  border: none;
  background: none;
  cursor: pointer;
  padding: var(--space-2);
}

.mobile-menu-toggle span {
  width: 100%;
  height: 2px;
  background: var(--text-secondary);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

/* Main Content */
.main-content {
  margin-top: 72px;
  min-height: calc(100vh - 72px);
  padding: var(--space-8) var(--space-6);
  max-width: 1440px;
  margin-left: auto;
  margin-right: auto;
}

.content-section {
  display: none;
  animation: fadeInUp 0.5s ease-out;
}

.content-section.active {
  display: block;
}

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-8);
  flex-wrap: wrap;
  gap: var(--space-4);
}

.section-title {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: var(--space-1);
}

.section-subtitle {
  font-size: 1.125rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-4);
}

.subsection-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-6);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  border: 1px solid transparent;
  border-radius: var(--radius-lg);
  font-size: 0.875rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

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

.btn-primary:hover:not(:disabled) {
  background: var(--color-navy-dark);
  border-color: var(--color-navy-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow-lg);
}

.btn-secondary {
  background: var(--bg-secondary);
  color: var(--text-primary);
  border-color: var(--border-primary);
}

.btn-secondary:hover:not(:disabled) {
  background: var(--bg-tertiary);
  border-color: var(--border-secondary);
  transform: translateY(-1px);
}

/* Stats Grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-6);
  margin-bottom: var(--space-12);
}

.stat-card {
  background: var(--bg-primary);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  display: flex;
  align-items: center;
  gap: var(--space-4);
  transition: all var(--transition-fast);
  position: relative;
  overflow: hidden;
}

.stat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-navy), var(--color-navy-light));
}

.stat-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl);
  border-color: var(--border-accent);
}

.stat-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  font-size: 1.25rem;
}

.stat-icon.bg-green { background: var(--color-green); }
.stat-icon.bg-blue { background: var(--color-navy); }
.stat-icon.bg-purple { background: var(--color-purple); }
.stat-icon.bg-orange { background: var(--color-orange); }

.stat-content {
  flex: 1;
}

.stat-label {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-1);
}

.stat-value {
  font-size: 1.875rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-2);
}

.stat-change {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.stat-change.positive {
  color: var(--color-green);
}

.stat-change.negative {
  color: var(--color-red);
}

/* Quick Actions */
.quick-actions {
  margin-bottom: var(--space-12);
}

.actions-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-4);
}

.action-card {
  background: var(--bg-primary);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  display: flex;
  align-items: center;
  gap: var(--space-4);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
  color: inherit;
}

.action-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-navy);
}

.action-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-lg);
  background: var(--color-navy);
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
}

.action-content h3 {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-1);
}

.action-content p {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

/* Recent Activity */
.recent-activity {
  margin-bottom: var(--space-12);
}

.activity-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.activity-item {
  background: var(--bg-primary);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  display: flex;
  align-items: center;
  gap: var(--space-4);
  transition: all var(--transition-fast);
}

.activity-item:hover {
  border-color: var(--border-accent);
  box-shadow: var(--shadow-md);
}

.activity-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  font-size: 1rem;
  flex-shrink: 0;
}

.activity-content {
  flex: 1;
}

.activity-title {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-1);
}

.activity-subtitle {
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-1);
}

.activity-time {
  font-size: 0.75rem;
  color: var(--text-tertiary);
}

/* Filters */
.filters-bar {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  background: var(--bg-secondary);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  margin-bottom: var(--space-8);
  flex-wrap: wrap;
}

.filter-group {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.filter-group label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  white-space: nowrap;
}

.filter-select {
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-md);
  background: var(--bg-primary);
  color: var(--text-primary);
  font-size: 0.875rem;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.filter-select:focus {
  outline: none;
  border-color: var(--color-navy);
  box-shadow: 0 0 0 3px rgba(30, 64, 175, 0.1);
}

.search-group {
  margin-left: auto;
}

.search-input-group {
  position: relative;
  display: flex;
  align-items: center;
}

.search-icon {
  position: absolute;
  left: var(--space-3);
  color: var(--text-tertiary);
  font-size: 1rem;
}

.search-input {
  padding: var(--space-2) var(--space-3) var(--space-2) var(--space-10);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-md);
  background: var(--bg-primary);
  color: var(--text-primary);
  font-size: 0.875rem;
  width: 250px;
  transition: all var(--transition-fast);
}

.search-input:focus {
  outline: none;
  border-color: var(--color-navy);
  box-shadow: 0 0 0 3px rgba(30, 64, 175, 0.1);
  width: 300px;
}

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

/* Resource Categories */
.resource-categories {
  display: flex;
  gap: var(--space-2);
  margin-bottom: var(--space-8);
  overflow-x: auto;
  padding-bottom: var(--space-2);
}

.category-tab {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-lg);
  background: var(--bg-secondary);
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.category-tab:hover {
  background: var(--bg-tertiary);
  border-color: var(--border-secondary);
}

.category-tab.active {
  background: var(--color-navy);
  color: var(--color-white);
  border-color: var(--color-navy);
}

/* Grids */
.contexts-grid,
.resources-grid,
.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: var(--space-6);
}

/* Context Cards */
.context-card {
  background: var(--bg-primary);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  transition: all var(--transition-fast);
  cursor: pointer;
}

.context-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-navy);
}

.context-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: var(--space-4);
}

.context-title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-1);
}

.context-type {
  display: inline-block;
  padding: var(--space-1) var(--space-2);
  background: var(--color-navy);
  color: var(--color-white);
  font-size: 0.75rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.context-description {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-4);
  line-height: 1.5;
}

.context-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.75rem;
  color: var(--text-tertiary);
}

.context-status {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.status-dot.bg-green { background: var(--color-green); }
.status-dot.bg-red { background: var(--color-red); }
.status-dot.bg-orange { background: var(--color-orange); }
.status-dot.bg-blue { background: var(--color-navy); }
.status-dot.bg-purple { background: var(--color-purple); }

/* Resource Cards */
.resource-card {
  background: var(--bg-primary);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  transition: all var(--transition-fast);
  cursor: pointer;
}

.resource-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-navy);
}

.resource-header {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.resource-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-lg);
  background: var(--color-navy);
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  flex-shrink: 0;
}

.resource-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-1);
}

.resource-url {
  font-size: 0.75rem;
  color: var(--text-accent);
  font-family: var(--font-mono);
  word-break: break-all;
}

.resource-description {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: var(--space-4);
}

.resource-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.resource-tag {
  padding: var(--space-1) var(--space-2);
  background: var(--bg-secondary);
  color: var(--text-secondary);
  font-size: 0.75rem;
  border-radius: var(--radius-sm);
}

/* Tool Cards */
.tool-card {
  background: var(--bg-primary);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  transition: all var(--transition-fast);
}

.tool-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-navy);
}

.tool-header {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.tool-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  font-size: 1.25rem;
}

.tool-header h3 {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
}

.tool-content {
  margin-bottom: var(--space-6);
}

.tool-content p {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: var(--space-3);
}

.tool-status {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.tool-actions {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
}

/* Analytics */
.analytics-dashboard {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: var(--space-6);
}

.analytics-card {
  background: var(--bg-primary);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
}

.analytics-card h3 {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-4);
}

.metric-chart {
  height: 200px;
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  font-size: 0.875rem;
}

/* Modals */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: var(--z-modal);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.modal.active {
  opacity: 1;
  visibility: visible;
}

.modal-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
}

.modal-content {
  position: relative;
  background: var(--bg-primary);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  width: 100%;
  max-width: 500px;
  max-height: 90vh;
  overflow-y: auto;
  transform: scale(0.95);
  transition: all var(--transition-normal);
}

.modal.active .modal-content {
  transform: scale(1);
}

.modal-content.large {
  max-width: 700px;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-6);
  border-bottom: 1px solid var(--border-primary);
}

.modal-header h2 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
}

.modal-close {
  width: 40px;
  height: 40px;
  border: none;
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-close:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

.modal-body {
  padding: var(--space-6);
}

/* Forms */
.form-group {
  margin-bottom: var(--space-4);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: var(--space-2);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: var(--space-3);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-md);
  background: var(--bg-primary);
  color: var(--text-primary);
  font-size: 0.875rem;
  transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-navy);
  box-shadow: 0 0 0 3px rgba(30, 64, 175, 0.1);
}

.form-group textarea {
  resize: vertical;
  min-height: 80px;
}

.form-actions {
  display: flex;
  gap: var(--space-3);
  justify-content: flex-end;
  margin-top: var(--space-6);
}

.demo-credentials {
  margin-top: var(--space-6);
  padding: var(--space-4);
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  font-size: 0.875rem;
}

.demo-credentials p {
  margin-bottom: var(--space-1);
  color: var(--text-secondary);
}

.demo-credentials strong {
  color: var(--text-primary);
}

/* Footer */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-primary);
  margin-top: var(--space-20);
}

.footer-content {
  max-width: 1440px;
  margin: 0 auto;
  padding: var(--space-12) var(--space-6) var(--space-8);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-8);
}

.footer-section h4 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-4);
}

.footer-description {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-top: var(--space-3);
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.footer-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.875rem;
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--text-accent);
}

.footer-bottom {
  max-width: 1440px;
  margin: 0 auto;
  padding: var(--space-4) var(--space-6);
  border-top: 1px solid var(--border-primary);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.footer-credits {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.footer-credits strong {
  color: var(--text-accent);
}

.footer-tech {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
}

.tech-badge {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-2);
  background: var(--color-navy);
  color: var(--color-white);
  font-size: 0.75rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
}

/* Spinner */
.spinner {
  width: 16px;
  height: 16px;
  border: 2px solid transparent;
  border-top: 2px solid currentColor;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

/* Toast Notifications */
.toast-container {
  position: fixed;
  top: var(--space-20);
  right: var(--space-6);
  z-index: var(--z-toast);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.toast {
  background: var(--bg-primary);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  box-shadow: var(--shadow-lg);
  min-width: 300px;
  animation: slideInRight 0.3s ease-out;
}

.toast.success {
  border-left: 4px solid var(--color-green);
}

.toast.error {
  border-left: 4px solid var(--color-red);
}

.toast.warning {
  border-left: 4px solid var(--color-orange);
}

.toast.info {
  border-left: 4px solid var(--color-navy);
}

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(100%);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.8;
    transform: scale(1.05);
  }
}

@keyframes gentlePulse {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.02);
  }
}

@keyframes pulseRing {
  0% {
    transform: translate(-50%, -50%) scale(0.8);
    opacity: 1;
  }
  100% {
    transform: translate(-50%, -50%) scale(1.2);
    opacity: 0;
  }
}

@keyframes loadingProgress {
  0% {
    transform: translateX(-100%);
  }
  50% {
    transform: translateX(0%);
  }
  100% {
    transform: translateX(100%);
  }
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* Responsive Design */
@media (max-width: 1024px) {
  .nav-menu {
    display: none;
  }
  
  .mobile-menu-toggle {
    display: flex;
  }
  
  .section-title {
    font-size: 2rem;
  }
  
  .stats-grid {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  }
  
  .actions-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .nav-container {
    padding: 0 var(--space-4);
  }
  
  .main-content {
    padding: var(--space-6) var(--space-4);
  }
  
  .section-header {
    flex-direction: column;
    align-items: flex-start;
  }
  
  .section-title {
    font-size: 1.75rem;
  }
  
  .filters-bar {
    flex-direction: column;
    align-items: stretch;
  }
  
  .search-group {
    margin-left: 0;
  }
  
  .search-input {
    width: 100%;
  }
  
  .search-input:focus {
    width: 100%;
  }
  
  .form-row {
    grid-template-columns: 1fr;
  }
  
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
  
  .contexts-grid,
  .resources-grid,
  .tools-grid {
    grid-template-columns: 1fr;
  }
  
  .analytics-dashboard {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .brand-text {
    display: none;
  }
  
  .nav-actions {
    gap: var(--space-2);
  }
  
  .stats-grid {
    grid-template-columns: 1fr;
  }
  
  .stat-card {
    padding: var(--space-4);
  }
  
  .modal-content {
    margin: var(--space-2);
  }
  
  .modal-header,
  .modal-body {
    padding: var(--space-4);
  }
  
  .toast-container {
    left: var(--space-4);
    right: var(--space-4);
  }
  
  .toast {
    min-width: auto;
  }
}

/* RTL Support */
[dir="rtl"] {
  text-align: right;
}

[dir="rtl"] .nav-menu {
  margin-right: auto;
  margin-left: 0;
}

[dir="rtl"] .search-icon {
  left: auto;
  right: var(--space-3);
}

[dir="rtl"] .search-input {
  padding-left: var(--space-3);
  padding-right: var(--space-10);
}

[dir="rtl"] .user-dropdown {
  left: 0;
  right: auto;
}

[dir="rtl"] .toast-container {
  left: var(--space-6);
  right: auto;
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
  :root {
    --border-primary: var(--color-gray-400);
    --border-secondary: var(--color-gray-500);
  }
  
  .btn {
    border-width: 2px;
  }
  
  .stat-card,
  .action-card,
  .context-card,
  .resource-card,
  .tool-card {
    border-width: 2px;
  }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  
  .brain-icon {
    animation: none;
  }
  
  .pulse-ring {
    animation: none;
  }
}

/* Print Styles */
@media print {
  .navbar,
  .footer,
  .modal,
  .toast-container {
    display: none !important;
  }
  
  .main-content {
    margin-top: 0;
    padding: 0;
  }
  
  .content-section {
    display: block !important;
  }
  
  .stat-card,
  .action-card,
  .context-card,
  .resource-card,
  .tool-card {
    break-inside: avoid;
  }
}

/* ======================================================================
   Admin-specific styles
   ====================================================================== */

.admin-only {
    display: none;
}

.admin-badge {
    background: linear-gradient(135deg, var(--color-navy), var(--color-navy-light));
    color: white;
    padding: 0.25rem 0.5rem;
    border-radius: 0.25rem;
    font-size: 0.75rem;
    font-weight: 600;
    margin-left: 0.5rem;
    text-shadow: 0 1px 2px rgba(0,0,0,0.1);
}

.admin-controls {
    margin-top: 2rem;
}

.admin-action {
    border: 2px solid var(--color-navy);
    background: linear-gradient(135deg, var(--color-navy-light), var(--color-navy));
    color: white;
    transition: all 0.3s ease;
}

.admin-action:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(30, 64, 175, 0.3);
    border-color: var(--color-navy-dark);
}

.admin-action .action-icon {
    background: rgba(255,255,255,0.2);
    color: white;
}

.admin-action .action-content h3 {
    color: white;
}

.admin-action .action-content p {
    color: rgba(255,255,255,0.8);
}

.admin-analytics {
    margin-top: 2rem;
}

.analytics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-top: 1rem;
}

.analytics-stats {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-top: 1rem;
}

.stat-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem;
    background: var(--color-gray-100);
    border-radius: 0.5rem;
    border-left: 4px solid var(--color-navy);
}

.stat-item .stat-label {
    font-weight: 500;
    color: var(--color-gray-700);
}

.stat-item .stat-value {
    font-weight: 700;
    color: var(--color-navy);
    font-size: 1.125rem;
}

/* Dark mode admin styles */
[data-theme="dark"] .admin-badge {
    background: linear-gradient(135deg, var(--color-navy-light), var(--color-navy));
}

[data-theme="dark"] .stat-item {
    background: var(--color-gray-800);
    border-left-color: var(--color-navy-light);
}

[data-theme="dark"] .stat-item .stat-label {
    color: var(--color-gray-300);
}

[data-theme="dark"] .stat-item .stat-value {
    color: var(--color-navy-light);
}

/* Admin navigation highlight */
.nav-link[data-section="admin"] {
    background: linear-gradient(135deg, var(--color-navy), var(--color-navy-light));
    color: white;
    border-radius: 0.5rem;
    margin: 0.25rem;
}

.nav-link[data-section="admin"]:hover {
    background: linear-gradient(135deg, var(--color-navy-dark), var(--color-navy));
    transform: translateY(-1px);
}

/* Responsive admin styles */
@media (max-width: 768px) {
    .analytics-grid {
        grid-template-columns: 1fr;
    }
    
    .admin-badge {
        display: block;
        margin-left: 0;
        margin-top: 0.25rem;
        width: fit-content;
    }
}