/* CSS Variables - Нейтральная цветовая схема */
:root {
  /* Основные цвета */
  --primary-color: #2d3436;
  --primary-dark: #1a1d1f;
  --secondary-color: #636e72;
  --accent-color: #74b9ff;
  --accent-dark: #0984e3;
  
  /* Нейтральные цвета */
  --background-light: #f8f9fa;
  --background-white: #ffffff;
  --text-dark: #2d3436;
  --text-medium: #636e72;
  --text-light: #b2bec3;
  --border-color: #ddd;
  --shadow-light: rgba(45, 52, 54, 0.1);
  --shadow-medium: rgba(45, 52, 54, 0.15);
  --shadow-dark: rgba(45, 52, 54, 0.25);
  
  /* Градиенты */
  --gradient-primary: linear-gradient(135deg, #74b9ff 0%, #0984e3 100%);
  --gradient-neutral: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
  --gradient-overlay: linear-gradient(rgba(45, 52, 54, 0.7), rgba(45, 52, 54, 0.5));
  
  /* Биоморфные формы */
  --border-radius-sm: 12px;
  --border-radius-md: 24px;
  --border-radius-lg: 48px;
  --border-radius-organic: 60% 40% 30% 70% / 60% 30% 70% 40%;
  
  /* Типографика */
  --font-heading: 'Space Grotesk', sans-serif;
  --font-body: 'DM Sans', sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 2rem;
  --font-size-4xl: 2.5rem;
  --font-size-5xl: 3rem;
  
  /* Размеры и отступы */
  --container-max-width: 1200px;
  --section-padding: 5rem 0;
  --header-height: 80px;
  --gap-sm: 1rem;
  --gap-md: 2rem;
  --gap-lg: 3rem;
  --gap-xl: 4rem;
  
  /* Анимации */
  --transition-fast: 0.2s ease;
  --transition-medium: 0.3s ease;
  --transition-slow: 0.5s ease;
  --animation-bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

/* Базовые стили */
* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--text-dark);
  background-color: var(--background-white);
  overflow-x: hidden;
}

/* Контейнеры */
.container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
  width: 100%;
}

/* Типографика */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: 1rem;
  color: var(--text-dark);
}

h1 {
  font-size: var(--font-size-5xl);
  font-weight: 700;
}

h2 {
  font-size: var(--font-size-4xl);
}

h3 {
  font-size: var(--font-size-3xl);
}

h4 {
  font-size: var(--font-size-2xl);
}

p {
  margin-bottom: 1.5rem;
  color: var(--text-medium);
}

/* Кнопки - Глобальные стили */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1rem 2rem;
  font-family: var(--font-heading);
  font-size: var(--font-size-base);
  font-weight: 500;
  text-decoration: none;
  border: none;
  border-radius: var(--border-radius-md);
  cursor: pointer;
  transition: all var(--transition-medium);
  position: relative;
  overflow: hidden;
  min-width: 160px;
  text-align: center;
}

.btn: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 var(--transition-slow);
}

.btn:hover:before {
  left: 100%;
}

.btn-primary {
  background: var(--gradient-primary);
  color: white;
  box-shadow: 0 4px 15px rgba(116, 185, 255, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(116, 185, 255, 0.4);
}

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

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

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

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

.btn-animated {
  animation: pulse 2s infinite;
}

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

/* Секции */
section {
  padding: var(--section-padding);
  position: relative;
}

.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-title {
  font-size: var(--font-size-4xl);
  color: var(--text-dark);
  margin-bottom: 1rem;
  position: relative;
}

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

.section-subtitle {
  font-size: var(--font-size-lg);
  color: var(--text-medium);
  max-width: 600px;
  margin: 0 auto;
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-color);
  z-index: 1000;
  transition: all var(--transition-medium);
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.logo {
  font-family: var(--font-heading);
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--primary-color);
  text-decoration: none;
  transition: color var(--transition-medium);
}

.logo:hover {
  color: var(--accent-color);
}

.navbar-menu {
  display: flex;
  align-items: center;
}

.navbar-nav {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-link {
  color: var(--text-dark);
  text-decoration: none;
  font-weight: 500;
  transition: color var(--transition-medium);
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent-color);
  transition: width var(--transition-medium);
}

.nav-link:hover::after {
  width: 100%;
}

.nav-link:hover {
  color: var(--accent-color);
}

/* Burger menu */
.navbar-burger {
  display: none;
  flex-direction: column;
  cursor: pointer;
  padding: 5px;
}

.navbar-burger span {
  width: 25px;
  height: 3px;
  background: var(--primary-color);
  margin: 3px 0;
  transition: 0.3s;
  border-radius: 2px;
}

/* Hero Section */
.hero-section {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  background: var(--gradient-neutral);
  padding-top: var(--header-height);
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  z-index: 1;
}

.hero-bg::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--gradient-overlay);
  z-index: 2;
}

.hero-content {
  position: relative;
  z-index: 3;
  text-align: center;
  color: white;
  max-width: 800px;
  margin: 0 auto;
}

.hero-title {
  font-size: var(--font-size-5xl);
  font-weight: 700;
  margin-bottom: 1.5rem;
  color: #ffffff;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.hero-subtitle {
  font-size: var(--font-size-xl);
  margin-bottom: 2.5rem;
  color: rgba(255, 255, 255, 0.9);
  text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
}

.hero-buttons {
  display: flex;
  gap: 1.5rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* Particles Animation */
.particles-container {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 2;
  pointer-events: none;
}

.particle {
  position: absolute;
  background: rgba(116, 185, 255, 0.6);
  border-radius: 50%;
  animation: float 6s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0) rotate(0deg); opacity: 0; }
  10% { opacity: 1; }
  90% { opacity: 1; }
  100% { transform: translateY(-100vh) rotate(360deg); opacity: 0; }
}

/* Cards - Универсальные стили */
.card {
  background: var(--background-white);
  border-radius: var(--border-radius-lg);
  box-shadow: 0 10px 30px var(--shadow-light);
  transition: all var(--transition-medium);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  height: 100%;
}

.card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 50px var(--shadow-medium);
}

.card-image {
  width: 100%;
  height: 250px;
  overflow: hidden;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

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

.card:hover .card-image img {
  transform: scale(1.1);
}

.card-content {
  padding: 2rem;
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  text-align: center;
}

/* Products Section */
.products-section {
  background: var(--background-light);
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--gap-lg);
  margin-top: 3rem;
}

.product-card {
  position: relative;
}

.product-title {
  font-size: var(--font-size-xl);
  margin-bottom: 1rem;
  color: var(--text-dark);
}

.product-description {
  color: var(--text-medium);
  margin-bottom: 1.5rem;
  flex: 1;
}

.product-price {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  color: var(--accent-color);
  margin-bottom: 1.5rem;
}

.product-btn {
  width: 100%;
  margin-top: auto;
}

/* Features Section */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--gap-lg);
  margin-top: 3rem;
}

.feature-item {
  text-align: center;
  padding: 2rem;
  background: var(--background-white);
  border-radius: var(--border-radius-lg);
  box-shadow: 0 5px 20px var(--shadow-light);
  transition: all var(--transition-medium);
}

.feature-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 40px var(--shadow-medium);
}

.feature-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 1.5rem;
  border-radius: var(--border-radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-primary);
}

.feature-icon img {
  width: 50px;
  height: 50px;
  object-fit: contain;
}

.animated-icon {
  animation: bounce 2s infinite;
}

.feature-title {
  font-size: var(--font-size-xl);
  margin-bottom: 1rem;
  color: var(--text-dark);
}

.feature-description {
  color: var(--text-medium);
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
  40% { transform: translateY(-10px); }
  60% { transform: translateY(-5px); }
}

/* Vision Section */
.vision-section {
  background: var(--background-white);
}

.vision-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--gap-xl);
  align-items: center;
}

.vision-text {
  padding-right: 2rem;
}

.vision-description {
  font-size: var(--font-size-lg);
  color: var(--text-medium);
  margin-bottom: 2rem;
  line-height: 1.8;
}

.vision-stats {
  display: flex;
  gap: 2rem;
  margin-top: 2rem;
}

.stat-item {
  text-align: center;
}

.stat-number {
  display: block;
  font-size: var(--font-size-3xl);
  font-weight: 700;
  color: var(--accent-color);
}

.stat-label {
  font-size: var(--font-size-sm);
  color: var(--text-medium);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.vision-image {
  position: relative;
}

.vision-image img {
  width: 100%;
  height: 400px;
  object-fit: cover;
  border-radius: var(--border-radius-lg);
  box-shadow: 0 20px 50px var(--shadow-medium);
}

/* Case Studies - Timeline */
.case-studies-section {
  background: var(--background-light);
}

.case-studies-timeline {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
}

.case-studies-timeline::before {
  content: '';
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  width: 2px;
  height: 100%;
  background: var(--gradient-primary);
}

.timeline-item {
  position: relative;
  margin: 3rem 0;
}

.timeline-item:nth-child(odd) .timeline-content {
  flex-direction: row;
  text-align: left;
}

.timeline-item:nth-child(even) .timeline-content {
  flex-direction: row-reverse;
  text-align: right;
}

.timeline-content {
  display: flex;
  align-items: center;
  gap: 2rem;
  background: var(--background-white);
  padding: 2rem;
  border-radius: var(--border-radius-lg);
  box-shadow: 0 10px 30px var(--shadow-light);
  position: relative;
}

.timeline-content::before {
  content: '';
  position: absolute;
  top: 50%;
  width: 20px;
  height: 20px;
  background: var(--accent-color);
  border-radius: 50%;
  border: 4px solid var(--background-white);
  box-shadow: 0 0 0 4px var(--accent-color);
}

.timeline-item:nth-child(odd) .timeline-content::before {
  right: -41px;
  transform: translateY(-50%);
}

.timeline-item:nth-child(even) .timeline-content::before {
  left: -41px;
  transform: translateY(-50%);
}

.case-image {
  flex: 1;
  min-width: 250px;
}

.case-image img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: var(--border-radius-md);
}

.case-content {
  flex: 2;
}

.case-title {
  font-size: var(--font-size-xl);
  margin-bottom: 1rem;
  color: var(--text-dark);
}

.case-description {
  color: var(--text-medium);
  line-height: 1.7;
}

/* Projects - Carousel */
.projects-section {
  background: var(--background-white);
}

.projects-carousel {
  position: relative;
  max-width: 100%;
  margin-top: 3rem;
}

.carousel-container {
  overflow: hidden;
  border-radius: var(--border-radius-lg);
}

.project-slide {
  display: none;
}

.project-slide.active {
  display: block;
}

.project-card .card-image {
  height: 350px;
}

.project-title {
  font-size: var(--font-size-2xl);
  margin-bottom: 1rem;
  color: var(--text-dark);
}

.project-description {
  color: var(--text-medium);
  line-height: 1.7;
}

.carousel-controls {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-top: 2rem;
}

.carousel-btn {
  width: 50px;
  height: 50px;
  background: var(--gradient-primary);
  color: white;
  border: none;
  border-radius: 50%;
  font-size: var(--font-size-xl);
  cursor: pointer;
  transition: all var(--transition-medium);
}

.carousel-btn:hover {
  transform: scale(1.1);
  box-shadow: 0 5px 15px rgba(116, 185, 255, 0.4);
}

/* Community Section */
.community-section {
  background: var(--background-light);
}

.community-content {
  text-align: center;
}

.community-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--gap-md);
  margin: 3rem 0;
}

.stat-card {
  background: var(--background-white);
  padding: 2rem;
  border-radius: var(--border-radius-lg);
  box-shadow: 0 5px 20px var(--shadow-light);
  transition: all var(--transition-medium);
}

.stat-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 40px var(--shadow-medium);
}

.stat-icon {
  width: 60px;
  height: 60px;
  margin: 0 auto 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.stat-icon img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.community-description {
  max-width: 800px;
  margin: 0 auto;
  font-size: var(--font-size-lg);
  color: var(--text-medium);
  line-height: 1.8;
}

/* Instructors Section */
.instructors-section {
  background: var(--background-white);
}

.instructors-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--gap-lg);
  margin-top: 3rem;
}

.instructor-card .card-image {
  height: 300px;
}

.instructor-card .card-image img {
  border-radius: 50%;
  width: 200px;
  height: 200px;
  object-fit: cover;
  margin-top: 2rem;
}

.instructor-name {
  font-size: var(--font-size-xl);
  margin-bottom: 0.5rem;
  color: var(--text-dark);
}

.instructor-title {
  font-size: var(--font-size-base);
  color: var(--accent-color);
  font-weight: 600;
  margin-bottom: 1rem;
}

.instructor-description {
  color: var(--text-medium);
  line-height: 1.6;
}

/* Resources Section */
.resources-section {
  background: var(--background-light);
  padding: 4rem 0;
}

.resources-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--gap-lg);
  margin-top: 3rem;
}

.resource-item {
  background: var(--background-white);
  padding: 2rem;
  border-radius: var(--border-radius-lg);
  box-shadow: 0 5px 20px var(--shadow-light);
  transition: all var(--transition-medium);
  text-align: center;
}

.resource-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 40px var(--shadow-medium);
}

.resource-title {
  font-size: var(--font-size-xl);
  margin-bottom: 1rem;
  color: var(--text-dark);
}

.resource-description {
  color: var(--text-medium);
  margin-bottom: 1.5rem;
  line-height: 1.6;
}

.resource-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--accent-color);
  text-decoration: none;
  font-weight: 600;
  transition: all var(--transition-medium);
}

.resource-link:hover {
  color: var(--accent-dark);
  transform: translateX(5px);
}

/* Careers Section */
.careers-section {
  background: var(--background-white);
}

.careers-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--gap-xl);
  align-items: center;
}

.careers-text {
  padding-right: 2rem;
}

.careers-description {
  font-size: var(--font-size-lg);
  color: var(--text-medium);
  margin-bottom: 2rem;
  line-height: 1.8;
}

.career-benefits {
  margin: 2rem 0;
}

.benefit-item {
  margin-bottom: 1.5rem;
  padding: 1rem;
  background: var(--background-light);
  border-radius: var(--border-radius-md);
  border-left: 4px solid var(--accent-color);
}

.benefit-item h4 {
  font-size: var(--font-size-lg);
  margin-bottom: 0.5rem;
  color: var(--text-dark);
}

.benefit-item p {
  color: var(--text-medium);
  margin: 0;
}

.careers-image img {
  width: 100%;
  height: 400px;
  object-fit: cover;
  border-radius: var(--border-radius-lg);
  box-shadow: 0 20px 50px var(--shadow-medium);
}

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

.statistics-section .section-title,
.statistics-section .section-subtitle {
  color: white;
}

.statistics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--gap-lg);
  margin-top: 3rem;
}

.statistics-section .stat-item {
  text-align: center;
  padding: 2rem;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border-radius: var(--border-radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.2);
  transition: all var(--transition-medium);
}

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

.statistics-section .stat-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 1rem;
  background: rgba(255, 255, 255, 0.2);
  border-radius: var(--border-radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
}

.statistics-section .stat-number {
  font-size: var(--font-size-4xl);
  font-weight: 700;
  color: white;
  display: block;
}

.stat-decimal,
.stat-suffix {
  font-size: var(--font-size-4xl);
  font-weight: 700;
  color: white;
}

.statistics-section .stat-label {
  font-size: var(--font-size-lg);
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 0.5rem;
  display: block;
}

.stat-description {
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.7);
}

/* Contact Section */
.contact-section {
  background: var(--background-light);
}

.contact-content {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: var(--gap-xl);
  margin-top: 3rem;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.5rem;
  background: var(--background-white);
  border-radius: var(--border-radius-md);
  box-shadow: 0 5px 15px var(--shadow-light);
  transition: all var(--transition-medium);
}

.contact-item:hover {
  transform: translateX(10px);
  box-shadow: 0 10px 25px var(--shadow-medium);
}

.contact-icon {
  width: 50px;
  height: 50px;
  background: var(--gradient-primary);
  border-radius: var(--border-radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-icon img {
  width: 30px;
  height: 30px;
  object-fit: contain;
}

.contact-details h3 {
  font-size: var(--font-size-lg);
  margin-bottom: 0.5rem;
  color: var(--text-dark);
}

.contact-details p {
  color: var(--text-medium);
  margin: 0;
}

/* Contact Form */
.contact-form-container {
  background: var(--background-white);
  padding: 3rem;
  border-radius: var(--border-radius-lg);
  box-shadow: 0 15px 40px var(--shadow-light);
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.form-group {
  display: flex;
  flex-direction: column;
}

.form-label {
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 0.5rem;
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.form-input,
.form-select,
.form-textarea {
  padding: 1rem;
  border: 2px solid var(--border-color);
  border-radius: var(--border-radius-md);
  font-family: var(--font-body);
  font-size: var(--font-size-base);
  transition: all var(--transition-medium);
  background: var(--background-white);
}

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

.form-textarea {
  resize: vertical;
  min-height: 120px;
}

.form-submit {
  width: 100%;
  margin-top: 1rem;
}

/* Modal */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  z-index: 10000;
  backdrop-filter: blur(5px);
}

.modal-content {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: var(--background-white);
  border-radius: var(--border-radius-lg);
  box-shadow: 0 25px 60px var(--shadow-dark);
  max-width: 500px;
  width: 90%;
  max-height: 90vh;
  overflow-y: auto;
}

.modal-header {
  padding: 2rem 2rem 1rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-header h3 {
  margin: 0;
  color: var(--text-dark);
}

.close-modal {
  background: none;
  border: none;
  font-size: var(--font-size-2xl);
  color: var(--text-medium);
  cursor: pointer;
  padding: 0;
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: all var(--transition-medium);
}

.close-modal:hover {
  background: var(--background-light);
  color: var(--text-dark);
}

.modal-body {
  padding: 2rem;
}

.modal-body p {
  margin: 0;
  color: var(--text-medium);
}

.modal-footer {
  padding: 1rem 2rem 2rem;
  text-align: right;
}

/* Footer */
.footer {
  background: var(--primary-color);
  color: white;
  padding: 3rem 0 1rem;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--gap-lg);
  margin-bottom: 2rem;
}

.footer-section h3,
.footer-section h4 {
  color: white;
  margin-bottom: 1rem;
}

.footer-title {
  font-size: var(--font-size-2xl);
  font-weight: 700;
}

.footer-subtitle {
  font-size: var(--font-size-lg);
  font-weight: 600;
}

.footer-description {
  color: rgba(255, 255, 255, 0.8);
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

.footer-social {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.social-link {
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  padding: 0.5rem 1rem;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: var(--border-radius-sm);
  transition: all var(--transition-medium);
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.social-link:hover {
  color: white;
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.5);
  transform: translateY(-2px);
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-links li {
  margin-bottom: 0.5rem;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  transition: color var(--transition-medium);
}

.footer-links a:hover {
  color: white;
}

.footer-contact p {
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 0.5rem;
}

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  color: rgba(255, 255, 255, 0.6);
}

/* Success Page */
.success-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-primary);
  color: white;
  text-align: center;
  padding: 2rem;
}

.success-content {
  max-width: 600px;
}

.success-content h1 {
  color: white;
  font-size: var(--font-size-4xl);
  margin-bottom: 1rem;
}

.success-content p {
  color: rgba(255, 255, 255, 0.9);
  font-size: var(--font-size-lg);
  margin-bottom: 2rem;
}

/* Additional Pages */
.page-content {
  padding-top: 100px;
  min-height: calc(100vh - var(--header-height));
}

.page-header {
  text-align: center;
  margin-bottom: 3rem;
  padding: 2rem 0;
  background: var(--background-light);
}

.page-title {
  font-size: var(--font-size-4xl);
  color: var(--text-dark);
  margin-bottom: 1rem;
}

.page-description {
  font-size: var(--font-size-lg);
  color: var(--text-medium);
  max-width: 600px;
  margin: 0 auto;
}

.content-section {
  background: var(--background-white);
  padding: 3rem 0;
}

.content-section h2 {
  color: var(--text-dark);
  margin-bottom: 1.5rem;
}

.content-section p {
  color: var(--text-medium);
  line-height: 1.8;
  margin-bottom: 1.5rem;
}

.content-section ul,
.content-section ol {
  color: var(--text-medium);
  line-height: 1.8;
  margin-bottom: 1.5rem;
  padding-left: 2rem;
}

.content-section li {
  margin-bottom: 0.5rem;
}

/* Animations */
[data-animate] {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.6s ease;
}

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

/* Responsive Design */
@media (max-width: 1024px) {
  :root {
    --section-padding: 4rem 0;
    --gap-xl: 3rem;
    --gap-lg: 2rem;
  }
  
  .hero-title {
    font-size: var(--font-size-4xl);
  }
  
  .section-title {
    font-size: var(--font-size-3xl);
  }
  
  .vision-content,
  .careers-content,
  .contact-content {
    grid-template-columns: 1fr;
    gap: var(--gap-lg);
  }
  
  .vision-text,
  .careers-text {
    padding-right: 0;
  }
  
  .timeline-item:nth-child(odd) .timeline-content,
  .timeline-item:nth-child(even) .timeline-content {
    flex-direction: column;
    text-align: center;
  }
  
  .timeline-content::before {
    top: -10px;
    left: 50% !important;
    right: auto !important;
    transform: translateX(-50%) !important;
  }
  
  .case-studies-timeline::before {
    left: 20px;
    transform: none;
  }
}

@media (max-width: 768px) {
  :root {
    --font-size-5xl: 2.5rem;
    --font-size-4xl: 2rem;
    --font-size-3xl: 1.75rem;
    --section-padding: 3rem 0;
    --gap-lg: 1.5rem;
    --gap-md: 1rem;
  }
  
  .container {
    padding: 0 1rem;
  }
  
  .navbar-burger {
    display: flex;
  }
  
  .navbar-menu {
    position: fixed;
    top: var(--header-height);
    left: 0;
    width: 100%;
    height: calc(100vh - var(--header-height));
    background: var(--background-white);
    transform: translateX(-100%);
    transition: transform var(--transition-medium);
    box-shadow: 0 5px 15px var(--shadow-light);
  }
  
  .navbar-menu.active {
    transform: translateX(0);
  }
  
  .navbar-nav {
    flex-direction: column;
    padding: 2rem;
    gap: 1rem;
  }
  
  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }
  
  .products-grid,
  .features-grid,
  .instructors-grid {
    grid-template-columns: 1fr;
  }
  
  .statistics-grid,
  .community-stats {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .vision-stats {
    flex-direction: column;
    gap: 1rem;
  }
  
  .case-studies-timeline::before {
    display: none;
  }
  
  .timeline-content::before {
    display: none;
  }
  
  .contact-content {
    grid-template-columns: 1fr;
  }
  
  .contact-form-container {
    padding: 2rem;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .footer-social {
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .statistics-grid,
  .community-stats {
    grid-template-columns: 1fr;
  }
  
  .hero-title {
    font-size: var(--font-size-3xl);
  }
  
  .hero-subtitle {
    font-size: var(--font-size-base);
  }
  
  .btn {
    min-width: auto;
    width: 100%;
  }
  
  .modal-content {
    margin: 1rem;
    width: calc(100% - 2rem);
  }
}

/* Print Styles */
@media print {
  .header,
  .footer,
  .btn,
  .contact-form,
  .particles-container {
    display: none !important;
  }
  
  .hero-section {
    min-height: auto;
    padding: 2rem 0;
  }
  
  section {
    padding: 1rem 0;
    break-inside: avoid;
  }
  
  .card {
    box-shadow: none;
    border: 1px solid var(--border-color);
  }
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
  :root {
    --text-dark: #000000;
    --text-medium: #333333;
    --background-white: #ffffff;
    --border-color: #000000;
    --accent-color: #0066cc;
  }
  
  .btn-primary {
    background: #000000;
    border: 2px solid #000000;
  }
  
  .btn-secondary,
  .btn-outline {
    border: 2px solid #000000;
    color: #000000;
  }
}

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