/* CSS Variables - Monochromatic Color Scheme */
:root {
  /* Primary Colors */
  --color-primary: #2D3436;
  --color-primary-light: #636E72;
  --color-primary-dark: #1A1D1F;
  --color-secondary: #74B9FF;
  --color-secondary-light: #A7D4FD;
  --color-secondary-dark: #0984E3;
  
  /* Accent Colors */
  --color-accent: #00CEC9;
  --color-accent-light: #81ECEC;
  --color-accent-dark: #00B894;
  
  /* Neutral Colors */
  --color-white: #FFFFFF;
  --color-light: #F8F9FA;
  --color-gray-100: #F1F3F4;
  --color-gray-200: #E3E6E8;
  --color-gray-300: #DDD;
  --color-gray-400: #B2BEC3;
  --color-gray-500: #636E72;
  --color-gray-600: #2D3436;
  --color-gray-700: #1A1D1F;
  --color-dark: #0D1117;
  
  /* Gradient Backgrounds */
  --gradient-primary: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  --gradient-secondary: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-secondary-dark) 100%);
  --gradient-accent: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
  --gradient-overlay: linear-gradient(rgba(0,0,0,0.6), rgba(0,0,0,0.4));
  
  /* Shadows - Neumorphism */
  --shadow-neumorphic: 8px 8px 16px rgba(45, 52, 54, 0.15), -8px -8px 16px rgba(255, 255, 255, 0.7);
  --shadow-neumorphic-inset: inset 4px 4px 8px rgba(45, 52, 54, 0.15), inset -4px -4px 8px rgba(255, 255, 255, 0.7);
  --shadow-neumorphic-hover: 12px 12px 24px rgba(45, 52, 54, 0.2), -12px -12px 24px rgba(255, 255, 255, 0.8);
  --shadow-card: 0 10px 30px rgba(45, 52, 54, 0.1);
  --shadow-button: 0 4px 15px rgba(116, 185, 255, 0.3);
  
  /* Typography */
  --font-primary: 'Poppins', sans-serif;
  --font-secondary: 'Work Sans', sans-serif;
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-xxl: 4rem;
  
  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-round: 50%;
  
  /* Transitions */
  --transition-smooth: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --transition-bounce: all 0.6s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-secondary);
  line-height: 1.6;
  color: var(--color-gray-600);
  background: var(--color-light);
  overflow-x: hidden;
}

.page-container {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-primary);
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: var(--spacing-sm);
  color: var(--color-primary);
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.75rem, 4vw, 2.5rem); }
h3 { font-size: clamp(1.25rem, 3vw, 1.75rem); }
h4 { font-size: clamp(1.1rem, 2.5vw, 1.5rem); }

p {
  margin-bottom: var(--spacing-sm);
  color: var(--color-gray-500);
  font-size: 1.1rem;
}

/* Global Button Styles */
.btn, button, input[type='submit'] {
  display: inline-block;
  padding: var(--spacing-md) var(--spacing-xl);
  border: none;
  border-radius: var(--radius-md);
  font-family: var(--font-primary);
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  text-align: center;
  cursor: pointer;
  transition: var(--transition-smooth);
  box-shadow: var(--shadow-neumorphic);
  background: var(--color-white);
  color: var(--color-primary);
  margin: var(--spacing-xs);
  min-width: 140px;
}

.btn:hover, button:hover, input[type='submit']:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-neumorphic-hover);
  text-decoration: none;
}

.btn:active, button:active, input[type='submit']:active {
  transform: translateY(1px);
  box-shadow: var(--shadow-neumorphic-inset);
}

.btn-primary {
  background: var(--gradient-secondary);
  color: var(--color-white);
  box-shadow: var(--shadow-button);
}

.btn-secondary {
  background: transparent;
  color: var(--color-secondary);
  border: 2px solid var(--color-secondary);
}

.btn-accent {
  background: var(--gradient-accent);
  color: var(--color-white);
}

/* Links */
a {
  color: var(--color-secondary);
  text-decoration: none;
  transition: var(--transition-smooth);
}

a:hover {
  color: var(--color-secondary-dark);
  text-decoration: underline;
}

/* Read More Links */
.read-more, .learn-more {
  color: var(--color-accent);
  font-weight: 500;
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.read-more:hover, .learn-more:hover {
  color: var(--color-accent-dark);
  transform: translateX(5px);
}

.read-more::after, .learn-more::after {
  content: '→';
  transition: var(--transition-smooth);
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  box-shadow: var(--shadow-card);
  z-index: 1000;
  transition: var(--transition-smooth);
}

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-md) 0;
}

.logo {
  font-family: var(--font-primary);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--color-primary);
  text-decoration: none;
}

.navbar-menu {
  display: flex;
}

.navbar-nav {
  display: flex;
  list-style: none;
  gap: var(--spacing-lg);
  align-items: center;
}

.nav-link {
  font-weight: 500;
  color: var(--color-gray-600);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-sm);
  transition: var(--transition-smooth);
}

.nav-link:hover {
  color: var(--color-secondary);
  background: rgba(116, 185, 255, 0.1);
  text-decoration: none;
}

.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  cursor: pointer;
  gap: 4px;
}

.mobile-menu-toggle span {
  width: 25px;
  height: 3px;
  background: var(--color-primary);
  border-radius: 2px;
  transition: var(--transition-smooth);
}

/* Hero Section */
.hero-section {
  position: relative;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero-background {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  background-attachment: fixed;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 800px;
  padding: var(--spacing-xxl) var(--spacing-md);
}

.hero-title {
  color: var(--color-white) !important;
  margin-bottom: var(--spacing-md);
  text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
}

.hero-subtitle {
  color: var(--color-white) !important;
  font-size: 1.25rem;
  margin-bottom: var(--spacing-xl);
  opacity: 0.95;
  text-shadow: 1px 1px 2px rgba(0,0,0,0.3);
}

.hero-buttons {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  flex-wrap: wrap;
}

/* Section Styles */
.section-header {
  text-align: center;
  margin-bottom: var(--spacing-xxl);
  padding-top: var(--spacing-xxl);
}

.section-title {
  position: relative;
  display: inline-block;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 4px;
  background: var(--gradient-secondary);
  border-radius: 2px;
}

/* Grid Layouts */
.grid-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: var(--spacing-xl); }
.grid-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: var(--spacing-lg); }
.grid-4 { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: var(--spacing-md); }

/* Card Styles */
.card, .vision-card, .workshop-card, .instructor-card, .event-item, .media-item, .job-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-neumorphic);
  padding: var(--spacing-lg);
  transition: var(--transition-smooth);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  overflow: hidden;
}

.card:hover, .vision-card:hover, .workshop-card:hover, .instructor-card:hover, .media-item:hover, .job-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-neumorphic-hover);
}

.card-image {
  width: 100%;
  height: 200px;
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-bottom: var(--spacing-md);
  display: flex;
  align-items: center;
  justify-content: center;
}

.card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-smooth);
}

.card:hover .card-image img {
  transform: scale(1.05);
}

.card-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

/* About Section */
.about-section {
  padding: var(--spacing-xxl) 0;
  background: var(--color-white);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xxl);
  align-items: center;
}

.about-text h3 {
  color: var(--color-primary);
  margin-bottom: var(--spacing-md);
}

.about-image {
  display: flex;
  justify-content: center;
  align-items: center;
}

.about-image img {
  width: 100%;
  max-width: 500px;
  height: 400px;
  object-fit: cover;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
}

/* Vision Section */
.vision-section {
  padding: var(--spacing-xxl) 0;
  background: var(--color-light);
}

.vision-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--spacing-xl);
}

/* Statistics Section */
.statistics-section {
  padding: var(--spacing-xxl) 0;
  background: var(--gradient-primary);
  color: var(--color-white);
}

.statistics-section .section-title {
  color: var(--color-white);
}

.statistics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-lg);
}

.stat-item {
  text-align: center;
  padding: var(--spacing-lg);
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(10px);
  transition: var(--transition-smooth);
}

.stat-item:hover {
  background: rgba(255, 255, 255, 0.15);
  transform: translateY(-5px);
}

.stat-number {
  font-size: 3rem;
  font-weight: 700;
  color: var(--color-accent-light);
  font-family: var(--font-primary);
}

.stat-label {
  font-size: 1.1rem;
  margin-top: var(--spacing-xs);
  color: var(--color-white);
}

/* Workshops Section */
.workshops-section {
  padding: var(--spacing-xxl) 0;
  background: var(--color-white);
}

.workshops-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--spacing-xl);
}

.workshop-details {
  display: flex;
  gap: var(--spacing-md);
  margin-top: var(--spacing-md);
  flex-wrap: wrap;
  justify-content: center;
}

.duration, .level {
  padding: var(--spacing-xs) var(--spacing-md);
  background: var(--color-gray-100);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-primary);
}

/* Instructors Section */
.instructors-section {
  padding: var(--spacing-xxl) 0;
  background: var(--color-light);
}

.instructors-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-xl);
}

.instructor-title {
  color: var(--color-secondary);
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
}

/* Events Section */
.events-section {
  padding: var(--spacing-xxl) 0;
  background: var(--color-white);
}

.events-calendar {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
  max-width: 800px;
  margin: 0 auto;
}

.event-item {
  display: flex;
  gap: var(--spacing-lg);
  align-items: flex-start;
  text-align: left;
  padding: var(--spacing-lg);
}

.event-date {
  background: var(--gradient-accent);
  color: var(--color-white);
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  text-align: center;
  min-width: 80px;
  flex-shrink: 0;
}

.event-date .day {
  display: block;
  font-size: 1.5rem;
  font-weight: 700;
  font-family: var(--font-primary);
}

.event-date .month {
  display: block;
  font-size: 0.9rem;
  opacity: 0.9;
}

.event-content {
  flex: 1;
}

.event-details {
  display: flex;
  gap: var(--spacing-md);
  margin-top: var(--spacing-sm);
  flex-wrap: wrap;
}

.time, .location, .type {
  padding: var(--spacing-xs) var(--spacing-sm);
  background: var(--color-gray-100);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  color: var(--color-gray-600);
}

/* Media Section */
.media-section {
  padding: var(--spacing-xxl) 0;
  background: var(--color-light);
}

.media-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--spacing-xl);
}

.media-date {
  color: var(--color-gray-400);
  font-size: 0.9rem;
  margin-top: var(--spacing-sm);
}

/* Careers Section */
.careers-section {
  padding: var(--spacing-xxl) 0;
  background: var(--color-white);
}

.jobs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-xl);
  margin-top: var(--spacing-xl);
}

.job-details {
  display: flex;
  gap: var(--spacing-md);
  margin-top: var(--spacing-md);
  flex-wrap: wrap;
  justify-content: center;
}

/* Resources Section */
.resources-section {
  padding: var(--spacing-xxl) 0;
  background: var(--color-light);
}

.resources-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-xl);
  margin-top: var(--spacing-xl);
}

.resource-item {
  background: var(--color-white);
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
}

.resource-links {
  list-style: none;
  margin-top: var(--spacing-md);
}

.resource-links li {
  margin-bottom: var(--spacing-xs);
}

.resource-links a {
  color: var(--color-secondary);
  text-decoration: none;
  transition: var(--transition-smooth);
  display: block;
  padding: var(--spacing-xs) 0;
}

.resource-links a:hover {
  color: var(--color-secondary-dark);
  padding-left: var(--spacing-sm);
}

/* Contact Section */
.contact-section {
  padding: var(--spacing-xxl) 0;
  background: var(--color-white);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xxl);
}

.contact-info {
  padding-right: var(--spacing-lg);
}

.contact-details {
  margin-top: var(--spacing-lg);
}

.contact-item {
  margin-bottom: var(--spacing-lg);
}

.contact-item strong {
  color: var(--color-primary);
  font-family: var(--font-primary);
  display: block;
  margin-bottom: var(--spacing-xs);
}

/* Form Styles */
.contact-form {
  background: var(--color-light);
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-neumorphic);
}

.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-group label {
  display: block;
  margin-bottom: var(--spacing-xs);
  font-weight: 500;
  color: var(--color-primary);
  font-family: var(--font-primary);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: var(--spacing-md);
  border: 2px solid var(--color-gray-200);
  border-radius: var(--radius-sm);
  font-family: var(--font-secondary);
  font-size: 1rem;
  transition: var(--transition-smooth);
  background: var(--color-white);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-secondary);
  box-shadow: 0 0 0 3px rgba(116, 185, 255, 0.1);
}

/* Footer */
.footer {
  background: var(--color-primary);
  color: var(--color-white);
  padding: var(--spacing-xxl) 0 var(--spacing-lg);
  margin-top: auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
}

.footer-section h3,
.footer-section h4 {
  color: var(--color-white);
  margin-bottom: var(--spacing-md);
}

.footer-section ul {
  list-style: none;
}

.footer-section ul li {
  margin-bottom: var(--spacing-xs);
}

.footer-section ul li a {
  color: var(--color-gray-300);
  text-decoration: none;
  transition: var(--transition-smooth);
}

.footer-section ul li a:hover {
  color: var(--color-white);
  text-decoration: none;
}

.social-links {
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

.social-links a {
  padding: var(--spacing-xs) var(--spacing-sm);
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-sm);
  color: var(--color-white);
  text-decoration: none;
  transition: var(--transition-smooth);
  font-weight: 500;
}

.social-links a:hover {
  background: var(--color-secondary);
  transform: translateY(-2px);
  text-decoration: none;
}

.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--color-gray-300);
}

/* Success Page Styles */
.success-container {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-light);
}

.success-content {
  text-align: center;
  background: var(--color-white);
  padding: var(--spacing-xxl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  max-width: 500px;
}

.success-icon {
  font-size: 4rem;
  color: var(--color-accent);
  margin-bottom: var(--spacing-lg);
}

/* Privacy and Terms Pages */
.content-page {
  padding-top: 100px;
  padding-bottom: var(--spacing-xxl);
  background: var(--color-white);
  min-height: 100vh;
}

.content-wrapper {
  max-width: 800px;
  margin: 0 auto;
  padding: var(--spacing-xl) var(--spacing-md);
}

.content-wrapper h2 {
  margin-top: var(--spacing-xl);
  margin-bottom: var(--spacing-md);
}

.content-wrapper p,
.content-wrapper ul {
  margin-bottom: var(--spacing-md);
  line-height: 1.7;
}

.content-wrapper ul {
  padding-left: var(--spacing-lg);
}

.content-wrapper li {
  margin-bottom: var(--spacing-xs);
}

/* Responsive Design */
@media (max-width: 768px) {
  .container {
    padding: 0 var(--spacing-sm);
  }
  
  .navbar-menu {
    position: fixed;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-white);
    box-shadow: var(--shadow-card);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-smooth);
  }
  
  .navbar-menu.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }
  
  .navbar-nav {
    flex-direction: column;
    padding: var(--spacing-lg);
    gap: var(--spacing-md);
  }
  
  .mobile-menu-toggle {
    display: flex;
  }
  
  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }
  
  .about-grid,
  .contact-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }
  
  .vision-grid,
  .workshops-grid,
  .instructors-grid,
  .media-grid,
  .jobs-grid {
    grid-template-columns: 1fr;
  }
  
  .statistics-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .event-item {
    flex-direction: column;
    text-align: center;
  }
  
  .event-date {
    align-self: center;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    text-align: center;
  }
  
  .social-links {
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .statistics-grid {
    grid-template-columns: 1fr;
  }
  
  .hero-content {
    padding: var(--spacing-lg) var(--spacing-sm);
  }
  
  .section-header {
    margin-bottom: var(--spacing-lg);
    padding-top: var(--spacing-lg);
  }
  
  .card, .vision-card, .workshop-card, .instructor-card, .media-item, .job-card {
    padding: var(--spacing-md);
  }
  
  .contact-form {
    padding: var(--spacing-lg);
  }
}

/* Animation Enhancements */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.animate-on-scroll {
  opacity: 0;
  animation: fadeInUp 0.6s ease forwards;
}

.animate-slide-left {
  opacity: 0;
  animation: slideInLeft 0.6s ease forwards;
}

.animate-slide-right {
  opacity: 0;
  animation: slideInRight 0.6s ease forwards;
}

/* Parallax Effect */
.parallax {
  background-attachment: fixed;
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
}

/* Glassmorphism Effects */
.glass-card {
  background: rgba(255, 255, 255, 0.25);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: var(--radius-lg);
  box-shadow: 0 8px 32px rgba(31, 38, 135, 0.37);
}

/* Loading States */
.loading {
  position: relative;
  overflow: hidden;
}

.loading::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
  animation: loading 1.5s infinite;
}

@keyframes loading {
  0% { left: -100%; }
  100% { left: 100%; }
}

/* Utility Classes */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mb-xs { margin-bottom: var(--spacing-xs); }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }

.mt-xs { margin-top: var(--spacing-xs); }
.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }

.d-flex { display: flex; }
.d-block { display: block; }
.d-none { display: none; }

.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.align-center { align-items: center; }

.w-100 { width: 100%; }
.h-100 { height: 100%; }

.bg-primary { background: var(--color-primary); }
.bg-secondary { background: var(--color-secondary); }
.bg-light { background: var(--color-light); }
.bg-white { background: var(--color-white); }

.text-primary { color: var(--color-primary); }
.text-secondary { color: var(--color-secondary); }
.text-white { color: var(--color-white); }
.text-muted { color: var(--color-gray-400); }

/* Performance Optimizations */
.card img,
.hero-background,
.parallax {
  will-change: transform;
}

.btn,
.nav-link,
.card {
  will-change: transform, box-shadow;
}