:root {
  /* Цветовая схема "Пастельная" */
  --primary-color: #6e7ff3;
  --primary-dark: #5a6ad6;
  --secondary-color: #f39c7e;
  --secondary-dark: #e58a6c;
  --accent-color: #a4e0a4;
  --accent-dark: #8bc98b;
  --text-color: #3a4049;
  --text-light: #65728a;
  --background-light: #f8f9fc;
  --background-dark: #eaecf3;
  --white: #ffffff;
  --black: rgba(0, 0, 0, 0.8);
  --success: #6cd8ad;
  --warning: #ffd485;
  --error: #ff8c8c;
  --border-radius: 10px;
  --card-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
  --hover-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
  --transition-fast: 0.3s ease;
  --transition-slow: 0.5s ease;
  
  /* Градиенты */
  --gradient-primary: linear-gradient(135deg, var(--primary-color), #8a93f7);
  --gradient-secondary: linear-gradient(135deg, var(--secondary-color), #f7bc9f);
  --gradient-dark: linear-gradient(rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0.4));
  --gradient-light: linear-gradient(rgba(255, 255, 255, 0.9), rgba(255, 255, 255, 0.85));
  
  /* Размеры контейнеров */
  --container-width: 1200px;
  --header-height: 80px;
  --section-spacing: 100px;
}

/* Базовые стили и сброс */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Work Sans', sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-color);
  background-color: var(--background-light);
  overflow-x: hidden;
}

a {
  text-decoration: none;
  color: var(--primary-color);
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--primary-dark);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

ul, ol {
  list-style: none;
}

/* Типографика */
h1, h2, h3, h4, h5, h6 {
  font-family: 'Poppins', sans-serif;
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: 20px;
  color: var(--text-color);
}

h1 {
  font-size: 3.5rem;
  font-weight: 700;
}

h2 {
  font-size: 2.5rem;
}

h3 {
  font-size: 1.75rem;
}

h4 {
  font-size: 1.25rem;
}

p {
  margin-bottom: 20px;
}

/* Контейнер */
.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 20px;
}

/* Кнопки */
.btn, 
button, 
input[type="submit"] {
  display: inline-block;
  padding: 12px 28px;
  font-family: 'Poppins', sans-serif;
  font-size: 1rem;
  font-weight: 500;
  text-align: center;
  border-radius: var(--border-radius);
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  background-color: var(--primary-color);
  color: var(--white);
  box-shadow: 0 4px 15px rgba(110, 127, 243, 0.3);
}

.btn:hover, 
button:hover, 
input[type="submit"]:hover {
  background-color: var(--primary-dark);
  transform: translateY(-3px);
  box-shadow: 0 8px 20px rgba(110, 127, 243, 0.4);
}

.btn:focus, 
button:focus, 
input[type="submit"]:focus {
  outline: none;
}

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

.btn-primary:hover {
  background-color: var(--primary-dark);
}

.btn-secondary {
  background-color: var(--secondary-color);
  color: var(--white);
  box-shadow: 0 4px 15px rgba(243, 156, 126, 0.3);
}

.btn-secondary:hover {
  background-color: var(--secondary-dark);
  box-shadow: 0 8px 20px rgba(243, 156, 126, 0.4);
}

.btn-link {
  background: none;
  box-shadow: none;
  padding: 6px 0;
  color: var(--primary-color);
  position: relative;
}

.btn-link::after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  bottom: 0;
  left: 0;
  background-color: var(--primary-color);
  transition: width var(--transition-fast);
}

.btn-link:hover {
  background: none;
  color: var(--primary-dark);
  transform: translateY(0);
  box-shadow: none;
}

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

/* Заголовки секций */
.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-title {
  position: relative;
  display: inline-block;
  margin-bottom: 15px;
  padding-bottom: 15px;
}

.section-title::after {
  content: '';
  position: absolute;
  width: 60px;
  height: 4px;
  background: var(--primary-color);
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  border-radius: 2px;
}

.section-subtitle {
  font-size: 1.2rem;
  color: var(--text-light);
  max-width: 700px;
  margin: 0 auto;
}

/* Header и навигация */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: 0 2px 15px rgba(0, 0, 0, 0.05);
  z-index: 1000;
  transition: all var(--transition-fast);
}

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

.logo a {
  display: flex;
  align-items: center;
  text-decoration: none;
}

.logo h1 {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--primary-color);
  margin: 0;
}

.nav-menu {
  display: flex;
}

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

.menu-items li {
  margin: 0 15px;
}

.menu-items a {
  font-weight: 500;
  font-size: 1rem;
  color: var(--text-color);
  padding: 5px 3px;
  position: relative;
  transition: all var(--transition-fast);
}

.menu-items a::after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  bottom: 0;
  left: 0;
  background-color: var(--primary-color);
  transition: width var(--transition-fast);
}

.menu-items a:hover {
  color: var(--primary-color);
}

.menu-items a:hover::after {
  width: 100%;
}

.hamburger-menu {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  height: 24px;
  cursor: pointer;
}

.bar {
  width: 30px;
  height: 3px;
  background-color: var(--text-color);
  border-radius: 3px;
  transition: var(--transition-fast);
}

/* Hero section */
.hero {
  position: relative;
  height: auto;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  padding: 120px 0 80px;
  color: var(--white);
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--gradient-dark);
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 800px;
}

.hero-title {
  font-size: 3.5rem;
  color: var(--white);
  margin-bottom: 20px;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.hero-description {
  font-size: 1.25rem;
  margin-bottom: 40px;
  text-shadow: 0 2px 5px rgba(0, 0, 0, 0.3);
}

.hero-buttons {
  display: flex;
  gap: 15px;
}

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

.about-content {
  display: flex;
  align-items: center;
  gap: 60px;
  margin-bottom: 60px;
}

.about-image {
  flex: 1;
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--card-shadow);
  display: flex;
  justify-content: center;
  align-items: center;
}

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

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

.about-text {
  flex: 1;
}

.about-values {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

/* Card component */
.card {
  background-color: var(--white);
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--card-shadow);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
  display: flex;
  flex-direction: column;
  align-items: center;
}

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

.card-image {
  width: 100%;
  height: 200px;
  overflow: hidden;
  display: flex;
  justify-content: center;
  align-items: 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: 25px;
  text-align: center;
}

.card-content h3 {
  margin-bottom: 15px;
}

.card-content p {
  color: var(--text-light);
  margin-bottom: 20px;
}

.course-features {
  margin: 15px 0;
  text-align: left;
}

.course-features li {
  margin-bottom: 8px;
  position: relative;
  padding-left: 20px;
  color: var(--text-light);
}

.course-features li::before {
  content: '•';
  position: absolute;
  left: 0;
  top: 0;
  color: var(--primary-color);
}

/* Courses section */
.courses-section {
  padding: var(--section-spacing) 0;
  background-color: var(--background-dark);
}

.courses-slider {
  position: relative;
  margin: 0 -15px;
}

.course-carousel {
  display: flex;
  overflow-x: auto;
  scroll-behavior: smooth;
  scrollbar-width: none;
  padding: 20px 15px;
  gap: 30px;
}

.course-carousel::-webkit-scrollbar {
  display: none;
}

.course-carousel .card {
  min-width: 350px;
  max-width: 350px;
}

.carousel-controls {
  display: flex;
  justify-content: center;
  margin-top: 30px;
  gap: 15px;
}

.carousel-controls button {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background-color: var(--white);
  color: var(--primary-color);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  font-size: 1.5rem;
  box-shadow: 0 3px 10px rgba(0, 0, 0, 0.1);
}

.carousel-controls button:hover {
  background-color: var(--primary-color);
  color: var(--white);
}

/* Behind scenes section */
.behind-scenes-section {
  padding: var(--section-spacing) 0;
  background-color: var(--white);
}

.timeline {
  position: relative;
  max-width: 900px;
  margin: 40px auto 0;
}

.timeline::before {
  content: '';
  position: absolute;
  width: 4px;
  background-color: var(--primary-color);
  top: 0;
  bottom: 0;
  left: 50%;
  margin-left: -2px;
  border-radius: 2px;
}

.timeline-item {
  padding: 10px 40px;
  position: relative;
  width: 50%;
  left: 0;
}

.timeline-item:nth-child(even) {
  left: 50%;
}

.timeline-content {
  padding: 30px;
  background-color: var(--background-light);
  position: relative;
  border-radius: var(--border-radius);
  box-shadow: var(--card-shadow);
}

.timeline-date {
  display: inline-block;
  padding: 8px 15px;
  background-color: var(--primary-color);
  color: var(--white);
  border-radius: 20px;
  font-weight: 600;
  margin-bottom: 15px;
}

.timeline-content h3 {
  margin-bottom: 15px;
}

.timeline-content img {
  margin-top: 20px;
  border-radius: var(--border-radius);
  width: 100%;
  height: auto;
}

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

.resources-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 30px;
}

/* Innovation section */
.innovation-section {
  padding: var(--section-spacing) 0;
  background-color: var(--white);
}

.innovation-content {
  display: flex;
  align-items: center;
  gap: 60px;
}

.innovation-image {
  flex: 1;
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--card-shadow);
  display: flex;
  justify-content: center;
  align-items: center;
}

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

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

.innovation-text {
  flex: 1;
}

.innovation-stats {
  display: flex;
  justify-content: space-between;
  margin-top: 40px;
  gap: 20px;
}

.stat-item {
  text-align: center;
  flex: 1;
}

.stat-number {
  display: block;
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: 5px;
}

.stat-text {
  color: var(--text-light);
}

/* FAQ section */
.faq-section {
  padding: var(--section-spacing) 0;
  background-color: var(--background-light);
}

.faq-content {
  max-width: 800px;
  margin: 0 auto;
}

.accordion {
  display: flex;
  flex-direction: column;
  gap: 15px;
}

.accordion-item {
  background-color: var(--white);
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--card-shadow);
}

.accordion-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px;
  cursor: pointer;
  background-color: var(--white);
  transition: background-color var(--transition-fast);
}

.accordion-header h3 {
  font-size: 1.2rem;
  margin-bottom: 0;
}

.accordion-icon {
  font-size: 1.5rem;
  color: var(--primary-color);
  transition: transform var(--transition-fast);
}

.accordion-item.active .accordion-icon {
  transform: rotate(45deg);
}

.accordion-content {
  padding: 0 20px;
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-slow), padding var(--transition-slow);
}

.accordion-item.active .accordion-content {
  max-height: 500px;
  padding: 0 20px 20px;
}

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

.contact-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
}

.contact-form-container {
  background-color: var(--white);
  padding: 40px;
  border-radius: var(--border-radius);
  box-shadow: var(--card-shadow);
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-group label {
  font-weight: 500;
}

.form-group input, 
.form-group select, 
.form-group textarea {
  padding: 12px 15px;
  border: 1px solid #e0e0e0;
  border-radius: var(--border-radius);
  font-family: 'Work Sans', sans-serif;
  font-size: 1rem;
  transition: border-color var(--transition-fast);
}

.form-group input:focus, 
.form-group select:focus, 
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary-color);
}

.form-checkbox {
  flex-direction: row;
  align-items: center;
  gap: 10px;
}

.form-checkbox input {
  width: auto;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 25px;
}

.info-card {
  background-color: var(--white);
  padding: 25px;
  border-radius: var(--border-radius);
  box-shadow: var(--card-shadow);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.info-icon {
  margin-bottom: 15px;
  width: 50px;
  height: 50px;
  display: flex;
  justify-content: center;
  align-items: center;
}

.info-card h3 {
  margin-bottom: 10px;
}

.contact-image {
  margin-top: 20px;
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--card-shadow);
}

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

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

/* Footer */
.footer {
  background-color: #2e3141;
  color: var(--white);
  padding: 80px 0 20px;
}

.footer-content {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-logo h2 {
  color: var(--white);
  margin-bottom: 15px;
}

.footer-logo p {
  color: rgba(255, 255, 255, 0.7);
}

.footer h3 {
  color: var(--white);
  font-size: 1.3rem;
  margin-bottom: 20px;
  position: relative;
  padding-bottom: 10px;
}

.footer h3::after {
  content: '';
  position: absolute;
  width: 40px;
  height: 3px;
  background: var(--primary-color);
  bottom: 0;
  left: 0;
  border-radius: 1.5px;
}

.footer-links ul, .footer-legal ul, .footer-social ul {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-links a, .footer-legal a, .footer-social a {
  color: rgba(255, 255, 255, 0.7);
  transition: color var(--transition-fast);
  display: inline-block;
  position: relative;
}

.footer-links a::before, 
.footer-legal a::before, 
.footer-social a::before {
  content: '';
  position: absolute;
  width: 0;
  height: 1px;
  bottom: -2px;
  left: 0;
  background-color: var(--white);
  transition: width var(--transition-fast);
}

.footer-links a:hover, 
.footer-legal a:hover, 
.footer-social a:hover {
  color: var(--white);
}

.footer-links a:hover::before, 
.footer-legal a:hover::before, 
.footer-social a:hover::before {
  width: 100%;
}

.footer-bottom {
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
}

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

/* Success page */
.success-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 40px 20px;
}

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

.success-icon {
  font-size: 5rem;
  color: var(--success);
  margin-bottom: 30px;
}

/* Privacy and Terms pages */
.privacy-page, .terms-page {
  padding-top: 150px;
  padding-bottom: 80px;
}

.privacy-content, .terms-content {
  background-color: var(--white);
  padding: 40px;
  border-radius: var(--border-radius);
  box-shadow: var(--card-shadow);
}

/* Responsive styles */
@media (max-width: 1200px) {
  .footer-content {
    grid-template-columns: repeat(2, 1fr);
    gap: 50px 30px;
  }
}

@media (max-width: 992px) {
  :root {
    --section-spacing: 80px;
  }
  
  h1 {
    font-size: 3rem;
  }
  
  h2 {
    font-size: 2.2rem;
  }
  
  .about-content, .innovation-content {
    flex-direction: column;
    gap: 40px;
  }
  
  .about-image, .innovation-image,
  .about-text, .innovation-text {
    width: 100%;
  }
  
  .timeline::before {
    left: 20px;
  }
  
  .timeline-item {
    width: 100%;
    left: 0;
    padding-left: 50px;
    padding-right: 0;
  }
  
  .timeline-item:nth-child(even) {
    left: 0;
  }
  
  .contact-content {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}

@media (max-width: 768px) {
  :root {
    --section-spacing: 60px;
  }
  
  h1 {
    font-size: 2.5rem;
  }
  
  h2 {
    font-size: 2rem;
  }
  
  .hero-buttons {
    flex-direction: column;
    width: 100%;
  }
  
  .hero-buttons .btn {
    width: 100%;
  }
  
  .nav-menu {
    position: fixed;
    top: var(--header-height);
    right: -100%;
    width: 80%;
    height: calc(100vh - var(--header-height));
    background-color: var(--white);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    transition: right var(--transition-fast);
    box-shadow: -5px 0 15px rgba(0, 0, 0, 0.1);
  }
  
  .nav-menu.active {
    right: 0;
  }
  
  .menu-items {
    flex-direction: column;
    gap: 20px;
  }
  
  .hamburger-menu {
    display: flex;
  }
  
  .hamburger-menu.active .bar:nth-child(1) {
    transform: translateY(10.5px) rotate(45deg);
  }
  
  .hamburger-menu.active .bar:nth-child(2) {
    opacity: 0;
  }
  
  .hamburger-menu.active .bar:nth-child(3) {
    transform: translateY(-10.5px) rotate(-45deg);
  }
  
  .innovation-stats {
    flex-direction: column;
    align-items: center;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 576px) {
  :root {
    --section-spacing: 50px;
  }
  
  h1 {
    font-size: 2.2rem;
  }
  
  h2 {
    font-size: 1.8rem;
  }
  
  .section-header {
    margin-bottom: 40px;
  }
  
  .contact-form-container {
    padding: 30px 20px;
  }
}

/* Animation classes */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.fade-in.active {
  opacity: 1;
  transform: translateY(0);
}

.slide-in-left {
  opacity: 0;
  transform: translateX(-50px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.slide-in-left.active {
  opacity: 1;
  transform: translateX(0);
}

.slide-in-right {
  opacity: 0;
  transform: translateX(50px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.slide-in-right.active {
  opacity: 1;
  transform: translateX(0);
}

.scale-in {
  opacity: 0;
  transform: scale(0.8);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.scale-in.active {
  opacity: 1;
  transform: scale(1);
}

/* Glassmorphism effect */
.glass-effect {
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--border-radius);
}