/**
 * 🎨 iOS MOODLE THEME - USER OVERRIDES
 * Complete iOS-style design system for Moodle
 * Version: 1.0 - Modern iOS Edition
 */

/* ========================================
   🚀 iOS FOUNDATION STYLES
======================================== */

:root {
  /* iOS Color System */
  --ios-blue: #007AFF;
  --ios-blue-light: #5AC8FA;
  --ios-green: #34C759;
  --ios-orange: #FF9500;
  --ios-red: #FF3B30;
  --ios-purple: #AF52DE;
  --ios-pink: #FF2D92;
  --ios-yellow: #FFCC00;
  
  /* Adaptive Colors - Light Mode */
  --ios-bg-primary: #FFFFFF;
  --ios-bg-secondary: #F2F2F7;
  --ios-bg-tertiary: #FFFFFF;
  --ios-text-primary: #000000;
  --ios-text-secondary: #3C3C43;
  --ios-text-tertiary: #8E8E93;
  
  /* Spacing System */
  --ios-space-xs: 4px;
  --ios-space-sm: 8px;
  --ios-space-md: 16px;
  --ios-space-lg: 24px;
  --ios-space-xl: 32px;
  --ios-space-2xl: 40px;
  
  /* Border Radius */
  --ios-radius-xs: 4px;
  --ios-radius-sm: 8px;
  --ios-radius-md: 12px;
  --ios-radius-lg: 16px;
  --ios-radius-xl: 20px;
  
  /* Shadows */
  --ios-shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.05);
  --ios-shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
  --ios-shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
  --ios-shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
  --ios-shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.1);
  
  /* Transitions */
  --ios-transition-fast: 0.15s ease;
  --ios-transition-normal: 0.2s ease;
  --ios-transition-slow: 0.3s ease;
}

/* ========================================
   🎨 GLOBAL iOS STYLING
======================================== */

body {
  font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'SF Pro Text', 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif !important;
  background-color: var(--ios-bg-secondary) !important;
  color: var(--ios-text-primary) !important;
  line-height: 1.5 !important;
  -webkit-font-smoothing: antialiased !important;
  -moz-osx-font-smoothing: grayscale !important;
}

/* Modern iOS Cards */
.card {
  background: var(--ios-bg-primary) !important;
  border: none !important;
  border-radius: var(--ios-radius-lg) !important;
  box-shadow: var(--ios-shadow-md) !important;
  padding: var(--ios-space-lg) !important;
  margin-bottom: var(--ios-space-md) !important;
  transition: var(--ios-transition-normal) !important;
  overflow: hidden !important;
}

.card:hover {
  transform: translateY(-2px) !important;
  box-shadow: var(--ios-shadow-lg) !important;
}

.card-header {
  background: transparent !important;
  border-bottom: 1px solid rgba(0, 0, 0, 0.1) !important;
  padding: var(--ios-space-md) var(--ios-space-lg) !important;
  font-weight: 600 !important;
}

.card-body {
  padding: var(--ios-space-lg) !important;
}

/* Modern iOS Buttons */
.btn {
  border: none !important;
  border-radius: var(--ios-radius-md) !important;
  font-weight: 600 !important;
  padding: var(--ios-space-sm) var(--ios-space-lg) !important;
  transition: var(--ios-transition-normal) !important;
  font-size: 16px !important;
  line-height: 1.2 !important;
  cursor: pointer !important;
}

.btn:hover {
  transform: translateY(-1px) !important;
  box-shadow: var(--ios-shadow-lg) !important;
}

.btn:active {
  transform: translateY(0) !important;
  transition: var(--ios-transition-fast) !important;
}

.btn-primary {
  background: var(--ios-blue) !important;
  color: white !important;
}

.btn-primary:hover {
  background: #0056CC !important;
  color: white !important;
}

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

.btn-secondary:hover {
  background: #E5E5EA !important;
  color: var(--ios-text-primary) !important;
}

.btn-success {
  background: var(--ios-green) !important;
  color: white !important;
}

.btn-warning {
  background: var(--ios-orange) !important;
  color: white !important;
}

.btn-danger {
  background: var(--ios-red) !important;
  color: white !important;
}

.btn-outline-primary {
  background: transparent !important;
  border: 2px solid var(--ios-blue) !important;
  color: var(--ios-blue) !important;
}

.btn-outline-primary:hover {
  background: var(--ios-blue) !important;
  color: white !important;
}

/* Modern iOS Forms */
.form-control {
  border: 1px solid #E5E5EA !important;
  border-radius: var(--ios-radius-md) !important;
  padding: var(--ios-space-md) !important;
  background: var(--ios-bg-primary) !important;
  transition: var(--ios-transition-normal) !important;
  font-size: 16px !important;
  line-height: 1.4 !important;
}

.form-control:focus {
  border-color: var(--ios-blue) !important;
  box-shadow: 0 0 0 3px rgba(0, 122, 255, 0.1) !important;
  outline: none !important;
  background: var(--ios-bg-primary) !important;
}

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

.form-group label {
  font-weight: 600 !important;
  color: var(--ios-text-primary) !important;
  margin-bottom: var(--ios-space-xs) !important;
}

.form-check-input {
  border-radius: var(--ios-radius-xs) !important;
  border: 1px solid #E5E5EA !important;
}

.form-check-input:checked {
  background-color: var(--ios-blue) !important;
  border-color: var(--ios-blue) !important;
}

/* Modern iOS Navigation */
.navbar {
  background: rgba(255, 255, 255, 0.85) !important;
  backdrop-filter: blur(20px) !important;
  -webkit-backdrop-filter: blur(20px) !important;
  border-bottom: 1px solid rgba(0, 0, 0, 0.1) !important;
  box-shadow: var(--ios-shadow-sm) !important;
  padding: var(--ios-space-sm) var(--ios-space-md) !important;
}

.navbar-brand {
  font-weight: 700 !important;
  color: var(--ios-text-primary) !important;
  font-size: 20px !important;
}

.nav-link {
  color: var(--ios-text-secondary) !important;
  font-weight: 500 !important;
  transition: var(--ios-transition-normal) !important;
  padding: var(--ios-space-sm) var(--ios-space-md) !important;
  border-radius: var(--ios-radius-sm) !important;
}

.nav-link:hover {
  color: var(--ios-blue) !important;
  background: rgba(0, 122, 255, 0.1) !important;
  transform: translateY(-1px) !important;
}

.nav-link.active {
  color: var(--ios-blue) !important;
  background: rgba(0, 122, 255, 0.15) !important;
}

/* Container styling */
.container,
.container-fluid {
  padding: var(--ios-space-lg) !important;
}

/* Content areas */
#page-content,
.main-content {
  background: transparent !important;
  padding: var(--ios-space-lg) !important;
}

/* Activity and course styling */
.activity,
.section {
  background: var(--ios-bg-primary) !important;
  border-radius: var(--ios-radius-lg) !important;
  padding: var(--ios-space-lg) !important;
  margin-bottom: var(--ios-space-md) !important;
  box-shadow: var(--ios-shadow-sm) !important;
  transition: var(--ios-transition-normal) !important;
}

.activity:hover,
.section:hover {
  transform: translateY(-1px) !important;
  box-shadow: var(--ios-shadow-md) !important;
}

/* Course listing */
.coursebox {
  background: var(--ios-bg-primary) !important;
  border: none !important;
  border-radius: var(--ios-radius-lg) !important;
  box-shadow: var(--ios-shadow-md) !important;
  margin-bottom: var(--ios-space-md) !important;
  padding: var(--ios-space-lg) !important;
  transition: var(--ios-transition-normal) !important;
}

.coursebox:hover {
  transform: translateY(-2px) !important;
  box-shadow: var(--ios-shadow-lg) !important;
}

/* Breadcrumbs */
.breadcrumb {
  background: transparent !important;
  padding: var(--ios-space-md) 0 !important;
}

.breadcrumb-item a {
  color: var(--ios-blue) !important;
  text-decoration: none !important;
  transition: var(--ios-transition-normal) !important;
}

.breadcrumb-item a:hover {
  color: #0056CC !important;
}

/* Alerts */
.alert {
  border: none !important;
  border-radius: var(--ios-radius-md) !important;
  padding: var(--ios-space-md) var(--ios-space-lg) !important;
  margin-bottom: var(--ios-space-md) !important;
}

.alert-success {
  background: rgba(52, 199, 89, 0.1) !important;
  color: var(--ios-green) !important;
}

.alert-warning {
  background: rgba(255, 149, 0, 0.1) !important;
  color: var(--ios-orange) !important;
}

.alert-danger {
  background: rgba(255, 59, 48, 0.1) !important;
  color: var(--ios-red) !important;
}

.alert-info {
  background: rgba(0, 122, 255, 0.1) !important;
  color: var(--ios-blue) !important;
}

/* Tables */
.table {
  background: var(--ios-bg-primary) !important;
  border-radius: var(--ios-radius-lg) !important;
  overflow: hidden !important;
  box-shadow: var(--ios-shadow-sm) !important;
}

.table th {
  background: var(--ios-bg-secondary) !important;
  border: none !important;
  font-weight: 600 !important;
  padding: var(--ios-space-md) !important;
}

.table td {
  border: none !important;
  border-bottom: 1px solid rgba(0, 0, 0, 0.05) !important;
  padding: var(--ios-space-md) !important;
}

/* ========================================
   🌙 DARK MODE SUPPORT
======================================== */

@media (prefers-color-scheme: dark) {
  :root {
    --ios-bg-primary: #1C1C1E;
    --ios-bg-secondary: #000000;
    --ios-bg-tertiary: #2C2C2E;
    --ios-text-primary: #FFFFFF;
    --ios-text-secondary: #8E8E93;
    --ios-text-tertiary: #6D6D70;
  }
  
  body {
    background-color: var(--ios-bg-secondary) !important;
    color: var(--ios-text-primary) !important;
  }
  
  .navbar {
    background: rgba(28, 28, 30, 0.85) !important;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1) !important;
  }
  
  .form-control {
    background: var(--ios-bg-primary) !important;
    border-color: #38383A !important;
    color: var(--ios-text-primary) !important;
  }
  
  .form-control:focus {
    border-color: var(--ios-blue) !important;
    background: var(--ios-bg-primary) !important;
  }
  
  .btn-secondary {
    background: var(--ios-bg-tertiary) !important;
    color: var(--ios-text-primary) !important;
  }
  
  .btn-secondary:hover {
    background: #3A3A3C !important;
    color: var(--ios-text-primary) !important;
  }
  
  .table th {
    background: var(--ios-bg-tertiary) !important;
  }
}

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

@media (max-width: 768px) {
  .container,
  .container-fluid {
    padding: var(--ios-space-md) !important;
  }
  
  #page-content,
  .main-content {
    padding: var(--ios-space-md) !important;
  }
  
  .card,
  .activity,
  .section {
    padding: var(--ios-space-md) !important;
    margin-bottom: var(--ios-space-sm) !important;
  }
  
  .btn {
    padding: var(--ios-space-md) var(--ios-space-lg) !important;
    font-size: 16px !important;
  }
}

@media (max-width: 480px) {
  .container,
  .container-fluid {
    padding: var(--ios-space-sm) !important;
  }
  
  .card,
  .activity,
  .section {
    padding: var(--ios-space-sm) !important;
    border-radius: var(--ios-radius-md) !important;
  }
}

/* ========================================
   ✨ MODERN ANIMATIONS
======================================== */

* {
  transition: var(--ios-transition-normal) !important;
}

/* Smooth page load */
body {
  animation: fadeIn 0.3s ease-in-out;
}

@keyframes fadeIn {
  from { 
    opacity: 0; 
    transform: translateY(10px);
  }
  to { 
    opacity: 1;
    transform: translateY(0);
  }
}

/* Hover animations */
.card,
.btn,
.activity,
.section,
.coursebox {
  will-change: transform !important;
}

/* Focus improvements */
*:focus {
  outline: 2px solid var(--ios-blue) !important;
  outline-offset: 2px !important;
}

/* Selection styling */
::selection {
  background: rgba(0, 122, 255, 0.2) !important;
  color: var(--ios-text-primary) !important;
}

/* Scrollbar styling for Webkit browsers */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--ios-bg-secondary);
}

::-webkit-scrollbar-thumb {
  background: var(--ios-text-tertiary);
  border-radius: var(--ios-radius-xs);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--ios-text-secondary);
}

/* ========================================
   🎯 SPECIFIC MOODLE ENHANCEMENTS
======================================== */

/* Dashboard improvements */
.dashboard-card-deck .card {
  height: auto !important;
  min-height: 200px !important;
}

/* Course page improvements */
.course-content .section {
  border-left: 4px solid var(--ios-blue) !important;
}

/* User menu improvements */
.usermenu .dropdown-menu {
  border: none !important;
  border-radius: var(--ios-radius-md) !important;
  box-shadow: var(--ios-shadow-lg) !important;
  padding: var(--ios-space-sm) !important;
}

.usermenu .dropdown-item {
  border-radius: var(--ios-radius-xs) !important;
  padding: var(--ios-space-xs) var(--ios-space-sm) !important;
  transition: var(--ios-transition-normal) !important;
}

.usermenu .dropdown-item:hover {
  background: rgba(0, 122, 255, 0.1) !important;
  color: var(--ios-blue) !important;
}

/* Footer improvements */
.footer {
  background: var(--ios-bg-primary) !important;
  border-top: 1px solid rgba(0, 0, 0, 0.1) !important;
  padding: var(--ios-space-xl) var(--ios-space-lg) !important;
  margin-top: var(--ios-space-xl) !important;
}

/* Loading improvements */
.loading {
  border-radius: var(--ios-radius-lg) !important;
  background: var(--ios-bg-primary) !important;
  box-shadow: var(--ios-shadow-md) !important;
}

/* Final touch - ensure everything looks polished */
img {
  border-radius: var(--ios-radius-sm) !important;
}

.badge {
  border-radius: var(--ios-radius-lg) !important;
  font-weight: 600 !important;
  padding: var(--ios-space-xs) var(--ios-space-sm) !important;
}

.progress {
  border-radius: var(--ios-radius-lg) !important;
  overflow: hidden !important;
}

.progress-bar {
  background: linear-gradient(90deg, var(--ios-blue), var(--ios-blue-light)) !important;
}

/* Special effects for premium feel */
.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.5), transparent);
  pointer-events: none;
}

@media (prefers-color-scheme: dark) {
  .card::before {
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
  }
}