/* Design System - Tunisia Jockey Club */
:root {
  /* Colors */
  --primary: #0d9488;
  --primary-dark: #0f766e;
  --primary-light: #14b8a6;
  --secondary: #dc2626;
  --accent: #f59e0b;
  
  /* Grays */
  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-400: #9ca3af;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-800: #1f2937;
  --gray-900: #111827;
  
  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  
  /* Typography */
  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --font-display: 'Poppins', var(--font-sans);
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
  --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);
  
  /* Animations */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* Navigation Styles */
.nav-link {
  display: inline-flex;
  align-items: center;
  padding: 0.75rem 1rem;
  font-weight: 500;
  color: var(--gray-700);
  border-radius: 0.75rem;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.nav-link::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(13, 148, 136, 0.1), transparent);
  transition: left var(--transition-base);
}

.nav-link:hover {
  color: var(--primary);
  background: rgba(13, 148, 136, 0.05);
  transform: translateY(-1px);
}

.nav-link:hover::before {
  left: 100%;
}

.mobile-nav-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem;
  font-weight: 500;
  color: var(--gray-700);
  border-radius: 0.75rem;
  transition: all var(--transition-base);
  border: 1px solid transparent;
}

.mobile-nav-link:hover {
  color: var(--primary);
  background: rgba(13, 148, 136, 0.05);
  border-color: rgba(13, 148, 136, 0.2);
  transform: translateX(4px);
}

.mobile-nav-link svg {
  margin-right: 0.75rem;
}

/* Language Switcher */
[data-lang].active {
  background: white;
  color: var(--primary);
  box-shadow: var(--shadow-sm);
  font-weight: 600;
}

/* Mobile Menu Animation */
.mobile-menu {
  transition: transform 300ms cubic-bezier(0.4, 0, 0.2, 1);
}

.mobile-menu.active {
  transform: translateX(0);
}

body.menu-open {
  overflow: hidden;
}

/* Button Styles Enhanced */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  font-weight: 600;
  border-radius: 0.75rem;
  transition: all var(--transition-base);
  cursor: pointer;
  text-decoration: none;
  border: 2px solid transparent;
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  background: rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: all var(--transition-base);
}

.btn:hover::before {
  width: 300px;
  height: 300px;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: white;
  box-shadow: var(--shadow-lg);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 25px 35px -5px rgba(13, 148, 136, 0.4);
}

.btn-secondary {
  background: white;
  color: var(--gray-800);
  border-color: var(--gray-200);
  box-shadow: var(--shadow);
}

.btn-secondary:hover {
  background: var(--gray-50);
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-2px);
}

/* Animation Classes */
[data-animate] {
  opacity: 0;
  transform: translateY(30px);
  transition: all var(--transition-slow);
}

[data-animate].animate-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Notification Styles */
.notification {
  position: fixed;
  top: 20px;
  right: 20px;
  padding: 1rem 1.5rem;
  border-radius: 0.75rem;
  color: white;
  font-weight: 500;
  opacity: 0;
  transform: translateX(100%);
  transition: all var(--transition-base);
  z-index: 1000;
}

.notification.show {
  opacity: 1;
  transform: translateX(0);
}

.notification-success {
  background: linear-gradient(135deg, #10b981 0%, #059669 100%);
}

.notification-error {
  background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
}

.notification-info {
  background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
}

/* Enhanced Card Styles */
.card-hover {
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.card-hover::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
  transition: left var(--transition-slow);
}

.card-hover:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: var(--shadow-xl);
}

.card-hover:hover::before {
  left: 100%;
}

/* Glass Effect Enhanced */
.glass {
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.3);
  box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.1);
}

/* Loading States */
.btn.loading {
  pointer-events: none;
  opacity: 0.8;
}

.btn.loading::after {
  content: '';
  position: absolute;
  width: 16px;
  height: 16px;
  border: 2px solid transparent;
  border-top-color: currentColor;
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-left: 8px;
}

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

/* Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-padding-top: 80px;
}

body {
  font-family: var(--font-sans);
  line-height: 1.6;
  color: var(--gray-800);
}

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

@keyframes slideIn {
  from { transform: translateX(-100%); }
  to { transform: translateX(0); }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.animate-fadeIn {
  animation: fadeIn 0.6s ease-out;
}

.animate-slideIn {
  animation: slideIn 0.3s ease-out;
}

.animate-pulse {
  animation: pulse 2s infinite;
}

.animate-bounce {
  animation: bounce 1s infinite;
}

/* Gradient Text */
.gradient-text {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Responsive Grid */
.grid-auto {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-track {
  background: var(--gray-100);
  border-radius: 10px;
}

::-webkit-scrollbar-thumb {
  background: linear-gradient(var(--primary), var(--primary-dark));
  border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(var(--primary-dark), var(--primary));
}

/* Focus States for Accessibility */
*:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
  border-radius: 4px;
}

/* Print Styles */
@media print {
  .no-print { display: none !important; }
  .glass { background: white !important; }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* Card Components with Advanced Interactions */
.card-hover {
  transform: translateY(0);
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  transition: all var(--transition-base);
  position: relative;
}

.card-hover:hover {
  transform: translateY(-8px);
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

.card-hover::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(135deg, 
    rgba(255, 255, 255, 0.5) 0%, 
    rgba(255, 255, 255, 0.1) 50%, 
    rgba(255, 255, 255, 0.5) 100%);
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask-composite: exclude;
  opacity: 0;
  transition: opacity var(--transition-base);
}

.card-hover:hover::before {
  opacity: 1;
}

/* Enhanced Gradient Text */
.gradient-text {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 50%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-decoration: none;
}

/* Mission Cards Specific Styles */
.mission-card-icon {
  transition: all var(--transition-base);
}

.mission-card-icon:hover {
  transform: scale(1.1) rotate(5deg);
}

/* Interactive Elements */
.interactive-hover {
  transition: all var(--transition-fast);
}

.interactive-hover:hover {
  transform: translateX(4px);
}