:root {
  /* Основная цветовая схема (раздельно-дополнительная) */
  --primary-color: #3a7bd5;
  --primary-dark: #2a5ea3;
  --primary-light: #70a1e9;
  --secondary-color: #d16b2e;
  --secondary-dark: #a84f1b;
  --secondary-light: #f3915c;
  --accent-color: #38b05f;
  --accent-dark: #2a8646;
  --accent-light: #60d488;
  
  /* Нейтральные цвета */
  --dark: #333333;
  --medium-dark: #555555;
  --medium: #777777;
  --medium-light: #aaaaaa;
  --light: #f5f5f5;
  --white: #ffffff;
  
  /* Шрифты */
  --heading-font: 'Roboto', sans-serif;
  --body-font: 'Lato', sans-serif;
  
  /* Отступы */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 3rem;
  --spacing-xl: 5rem;
  
  /* Радиусы */
  --radius-sm: 3px;
  --radius-md: 6px;
  --radius-lg: 12px;
  --radius-full: 50%;
  
  /* Тени */
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.15);
  --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.2);
  
  /* Анимации */
  --transition-fast: 0.2s ease;
  --transition-medium: 0.3s ease;
  --transition-slow: 0.5s ease;
}

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

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

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

h1, h2, h3, h4, h5, h6 {
  font-family: var(--heading-font);
  font-weight: 700;
  line-height: 1.2;
  color: var(--dark);
  margin-bottom: var(--spacing-sm);
}

h1 {
  font-size: 3.5rem;
}

h2 {
  font-size: 2.5rem;
}

h3 {
  font-size: 1.75rem;
}

h4 {
  font-size: 1.25rem;
}

p {
  margin-bottom: var(--spacing-md);
  font-size: 1rem;
}

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

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

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

ul, ol {
  list-style: none;
  padding: 0;
  margin: 0 0 var(--spacing-md) 0;
}

/* Контейнер */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

/* Кнопки */
.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-md);
  font-weight: 700;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition-medium);
  border: none;
  font-family: var(--body-font);
  margin: var(--spacing-xs);
}

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

.primary-btn:hover {
  background-color: var(--primary-dark);
  color: var(--white);
  text-decoration: none;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

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

.secondary-btn:hover {
  background-color: var(--secondary-dark);
  color: var(--white);
  text-decoration: none;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

button, input[type='submit'] {
  cursor: pointer;
  font-family: var(--body-font);
  font-weight: 700;
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background-color: rgba(255, 255, 255, 0.95);
  box-shadow: var(--shadow-sm);
  z-index: 1000;
  padding: var(--spacing-sm) 0;
  transition: all var(--transition-medium);
}

.header.scrolled {
  padding: var(--spacing-xs) 0;
  background-color: rgba(255, 255, 255, 0.98);
  box-shadow: var(--shadow-md);
}

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

.logo {
  font-size: 1.5rem;
  font-weight: 700;
}

.logo a {
  color: var(--primary-color);
  text-decoration: none;
}

.logo a:hover {
  color: var(--primary-dark);
  text-decoration: none;
}

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

.nav-menu {
  display: flex;
  list-style: none;
}

.nav-menu li {
  margin-left: var(--spacing-md);
}

.nav-menu a {
  color: var(--dark);
  text-decoration: none;
  font-weight: 500;
  position: relative;
  padding-bottom: 5px;
}

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

.nav-menu a:hover {
  color: var(--primary-color);
  text-decoration: none;
}

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

/* Гамбургер меню */
.hamburger {
  display: none;
  cursor: pointer;
}

.bar {
  display: block;
  width: 25px;
  height: 3px;
  margin: 5px auto;
  transition: all var(--transition-medium);
  background-color: var(--dark);
}

/* Hero Section */
.hero {
  position: relative;
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
  padding: calc(var(--spacing-xl) * 2) 0;
  margin-top: 60px;
  overflow: hidden;
}

.hero .overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to right, rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.4));
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  color: var(--white);
  max-width: 700px;
}

.hero-content h1, .hero-content p {
  color: var(--white);
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-content h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  margin-bottom: var(--spacing-md);
}

.hero-content p {
  font-size: clamp(1rem, 2vw, 1.25rem);
  margin-bottom: var(--spacing-lg);
}

.hero-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

/* Services Section */
.services {
  padding: var(--spacing-xl) 0;
  background-color: var(--white);
}

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-lg);
}

.section-header h2 {
  color: var(--primary-color);
  margin-bottom: var(--spacing-xs);
  font-size: clamp(2rem, 4vw, 2.5rem);
}

.section-header p {
  color: var(--medium-dark);
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--spacing-lg);
}

.card {
  display: flex;
  flex-direction: column;
  align-items: center;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-medium), box-shadow var(--transition-medium);
  background-color: var(--white);
  height: 100%;
}

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

.card-image {
  width: 100%;
  height: 220px;
  overflow: hidden;
  text-align: center;
}

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

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

.card-content {
  padding: var(--spacing-md);
  text-align: center;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.card-content h3 {
  color: var(--primary-color);
  margin-bottom: var(--spacing-sm);
}

.card-content p {
  color: var(--medium-dark);
  margin-bottom: var(--spacing-sm);
}

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

.about-content {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--spacing-lg);
}

.about-image {
  flex: 1 1 400px;
  text-align: center;
}

.about-image img {
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  margin: 0 auto;
}

.about-text {
  flex: 1 1 500px;
}

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

.timeline-section {
  margin-top: var(--spacing-xl);
}

.timeline-section h3 {
  text-align: center;
  color: var(--primary-color);
  margin-bottom: var(--spacing-md);
}

.timeline {
  position: relative;
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

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

.timeline-item {
  position: relative;
  display: flex;
  justify-content: flex-end;
  padding-right: 50%;
  margin-bottom: var(--spacing-lg);
}

.timeline-item:nth-child(even) {
  justify-content: flex-start;
  padding-right: 0;
  padding-left: 50%;
}

.timeline-date {
  position: absolute;
  top: 0;
  left: 50%;
  background-color: var(--primary-color);
  color: var(--white);
  padding: 0.5rem 1rem;
  border-radius: var(--radius-full);
  transform: translateX(-50%);
  z-index: 1;
  font-weight: 700;
}

.timeline-content {
  position: relative;
  width: 80%;
  padding: var(--spacing-md);
  background-color: var(--white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
}

.timeline-content::before {
  content: '';
  position: absolute;
  top: 10px;
  right: -10px;
  width: 20px;
  height: 20px;
  background-color: var(--white);
  transform: rotate(45deg);
}

.timeline-item:nth-child(even) .timeline-content::before {
  left: -10px;
  right: auto;
}

.timeline-content h4 {
  color: var(--primary-color);
  margin-bottom: var(--spacing-xs);
}

/* Features Section */
.features {
  padding: var(--spacing-xl) 0;
  background-color: var(--white);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--spacing-lg);
}

.feature-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  background-color: var(--light);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-medium), box-shadow var(--transition-medium);
  height: 100%;
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.feature-icon {
  width: 80px;
  height: 80px;
  margin-bottom: var(--spacing-sm);
  display: flex;
  justify-content: center;
  align-items: center;
}

.feature-icon img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius-full);
}

.feature-card h3 {
  color: var(--primary-color);
  margin-bottom: var(--spacing-sm);
}

.feature-card p {
  color: var(--medium-dark);
}

/* Vision Section */
.vision {
  position: relative;
  padding: var(--spacing-xl) 0;
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
  color: var(--white);
}

.vision .overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to right, rgba(0, 0, 0, 0.8), rgba(0, 0, 0, 0.5));
  z-index: 1;
}

.vision .section-header, .vision .section-header h2, .vision .section-header p {
  position: relative;
  z-index: 2;
  color: var(--white);
}

.vision-content {
  position: relative;
  z-index: 2;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--spacing-lg);
}

.vision-text {
  flex: 1 1 500px;
}

.vision-text h3 {
  color: var(--secondary-light);
  margin-bottom: var(--spacing-sm);
}

.vision-text p {
  color: var(--white);
  margin-bottom: var(--spacing-md);
}

.vision-stats {
  flex: 1 1 300px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-md);
}

.stat-item {
  text-align: center;
  padding: var(--spacing-md);
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  backdrop-filter: blur(5px);
  transition: transform var(--transition-medium);
}

.stat-item:hover {
  transform: scale(1.05);
}

.stat-number {
  display: block;
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: var(--spacing-xs);
  color: var(--secondary-light);
}

.stat-desc {
  font-size: 0.9rem;
  color: var(--white);
}

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

.resources-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: var(--spacing-lg);
}

.resource-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  background-color: var(--white);
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-medium);
  height: 100%;
}

.resource-card:hover {
  transform: translateY(-5px);
}

.resource-icon {
  width: 100px;
  height: 100px;
  margin-bottom: var(--spacing-sm);
  display: flex;
  justify-content: center;
  align-items: center;
}

.resource-icon img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius-sm);
}

.resource-card h3 {
  color: var(--primary-color);
  margin-bottom: var(--spacing-sm);
}

.resource-card p {
  color: var(--medium-dark);
  margin-bottom: var(--spacing-md);
}

.resource-link {
  display: inline-block;
  color: var(--secondary-color);
  font-weight: 700;
  transition: color var(--transition-fast);
}

.resource-link:hover {
  color: var(--secondary-dark);
}

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

.contact-content {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-lg);
}

.contact-info {
  flex: 1 1 400px;
}

.info-item {
  margin-bottom: var(--spacing-md);
}

.info-item h3 {
  color: var(--primary-color);
  margin-bottom: var(--spacing-xs);
}

.map-container {
  margin-top: var(--spacing-md);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.contact-form {
  flex: 1 1 500px;
  background-color: var(--light);
  padding: var(--spacing-lg);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
}

.contact-form h3 {
  color: var(--primary-color);
  margin-bottom: var(--spacing-md);
  text-align: center;
}

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

.form-group label {
  display: block;
  margin-bottom: var(--spacing-xs);
  color: var(--dark);
  font-weight: 700;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--medium-light);
  border-radius: var(--radius-sm);
  font-family: var(--body-font);
  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);
}

.consent-label {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  font-weight: 400;
}

.consent-label input {
  width: auto;
  margin-top: 0.25rem;
}

/* Footer */
.footer {
  background-color: var(--dark);
  color: var(--white);
  padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer-content {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.footer-logo {
  flex: 1 1 300px;
}

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

.footer-logo p {
  color: var(--medium-light);
}

.footer-links {
  flex: 2 1 600px;
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-lg);
}

.footer-column {
  flex: 1 1 150px;
}

.footer-column h3 {
  color: var(--white);
  margin-bottom: var(--spacing-md);
  font-size: 1.2rem;
}

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

.footer-column a {
  color: var(--medium-light);
  transition: color var(--transition-fast);
}

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

.footer-social {
  flex: 1 1 250px;
}

.footer-social h3 {
  color: var(--white);
  margin-bottom: var(--spacing-md);
  font-size: 1.2rem;
}

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

.social-links a {
  color: var(--medium-light);
  transition: color var(--transition-fast);
  font-weight: 500;
}

.social-links a:hover {
  color: var(--white);
  text-decoration: none;
}

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

/* Success Page */
.success-page {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  min-height: 100vh;
  padding: var(--spacing-xl) var(--spacing-md);
  background-color: var(--light);
}

.success-container {
  max-width: 600px;
  margin: 0 auto;
  padding: var(--spacing-lg);
  background-color: var(--white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
}

.success-icon {
  width: 80px;
  height: 80px;
  background-color: var(--accent-color);
  border-radius: var(--radius-full);
  display: flex;
  justify-content: center;
  align-items: center;
  margin: 0 auto var(--spacing-md);
  color: var(--white);
  font-size: 2rem;
}

.success-content h2 {
  color: var(--accent-color);
  margin-bottom: var(--spacing-md);
}

/* Privacy & Terms Pages */
.page-content {
  padding: 120px var(--spacing-md) var(--spacing-xl);
  max-width: 900px;
  margin: 0 auto;
}

.page-content h1 {
  color: var(--primary-color);
  margin-bottom: var(--spacing-lg);
}

.page-content h2 {
  color: var(--primary-dark);
  margin-top: var(--spacing-lg);
  margin-bottom: var(--spacing-md);
}

.page-content p {
  margin-bottom: var(--spacing-md);
}

.page-content ul {
  list-style: disc;
  padding-left: var(--spacing-lg);
  margin-bottom: var(--spacing-md);
}

/* Медиа запросы для адаптивной верстки */
@media (max-width: 991px) {
  .hero {
    padding: var(--spacing-xl) 0;
  }
  
  .hero-content {
    max-width: 100%;
  }
  
  .timeline::before {
    left: 30px;
  }
  
  .timeline-item {
    padding-right: 0;
    padding-left: 80px;
    justify-content: flex-start;
  }
  
  .timeline-item:nth-child(even) {
    padding-left: 80px;
  }
  
  .timeline-date {
    left: 30px;
    transform: translateX(-50%);
  }
  
  .timeline-content {
    width: 100%;
  }
  
  .timeline-content::before {
    display: none;
  }
}

@media (max-width: 768px) {
  h1 {
    font-size: 2.5rem;
  }
  
  h2 {
    font-size: 2rem;
  }
  
  .nav-menu {
    position: fixed;
    left: -100%;
    top: 60px;
    flex-direction: column;
    width: 100%;
    height: calc(100vh - 60px);
    background-color: var(--white);
    transition: all var(--transition-medium);
    box-shadow: var(--shadow-md);
    z-index: 999;
    padding: var(--spacing-lg) 0;
  }
  
  .nav-menu.active {
    left: 0;
  }
  
  .nav-menu li {
    margin: 0;
    padding: var(--spacing-sm) 0;
    width: 100%;
    text-align: center;
  }
  
  .hamburger {
    display: block;
  }
  
  .hamburger.active .bar:nth-child(2) {
    opacity: 0;
  }
  
  .hamburger.active .bar:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
  }
  
  .hamburger.active .bar:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
  }
  
  .vision-stats {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 576px) {
  .container {
    padding: 0 var(--spacing-sm);
  }
  
  .hero-buttons {
    justify-content: center;
  }
  
  .footer-content {
    flex-direction: column;
    gap: var(--spacing-md);
  }
  
  .footer-logo, .footer-links, .footer-column, .footer-social {
    flex-basis: 100%;
    text-align: center;
  }
  
  .social-links {
    justify-content: center;
  }
}

/* Анимации при прокрутке */
[data-scroll] {
  opacity: 0;
  transition: opacity 1s, transform 1s;
}

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

/* Пользовательский ползунок для видео */
.video-progress {
  -webkit-appearance: none;
  width: 100%;
  height: 5px;
  background: var(--medium-light);
  outline: none;
  border-radius: var(--radius-sm);
}

.video-progress::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 15px;
  height: 15px;
  background: var(--primary-color);
  border-radius: 50%;
  cursor: pointer;
}

/* Дополнительные стили для формы и интерактивных элементов */
input[type="checkbox"], input[type="radio"] {
  accent-color: var(--primary-color);
}

::selection {
  background-color: var(--primary-light);
  color: var(--white);
}

/* Кастомные стили для куки-уведомления */
#cookiePopup {
  border-top: 3px solid var(--primary-color);
}

#acceptCookies {
  background-color: var(--primary-color);
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-fast);
}

#acceptCookies:hover {
  background-color: var(--primary-dark);
}