:root {
  /* Триадная цветовая схема */
  --primary-color: #3498db;
  --secondary-color: #e74c3c;
  --tertiary-color: #2ecc71;
  
  /* Оттенки для неоморфизма */
  --light-shadow: rgba(255, 255, 255, 0.7);
  --dark-shadow: rgba(0, 0, 0, 0.1);
  --surface-color: #f5f7fa;
  
  /* Текстовые цвета */
  --text-dark: #333333;
  --text-medium: #555555;
  --text-light: #ffffff;
  
  /* Акцентные цвета */
  --accent-color-1: #9b59b6;
  --accent-color-2: #f39c12;
  
  /* Размеры текста */
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;
  --text-5xl: 3rem;
  
  /* Переходы и анимации */
  --transition-fast: 0.2s ease-in-out;
  --transition-normal: 0.3s ease-in-out;
  --transition-slow: 0.5s ease-in-out;
  
  /* Тени */
  --box-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.1);
  --neomorphic-shadow: 12px 12px 24px var(--dark-shadow), -12px -12px 24px var(--light-shadow);
  --inset-neomorphic-shadow: inset 6px 6px 12px var(--dark-shadow), inset -6px -6px 12px var(--light-shadow);
  
  /* Радиусы */
  --border-radius-sm: 4px;
  --border-radius-md: 8px;
  --border-radius-lg: 16px;
  --border-radius-xl: 24px;
  --border-radius-full: 9999px;
  
  /* Отступы */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;
  --spacing-3xl: 6rem;
}

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

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

body {
  font-family: 'Lato', sans-serif;
  line-height: 1.6;
  color: var(--text-dark);
  background-color: var(--surface-color);
  overflow-x: hidden;
}

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

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

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

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

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

h5 {
  font-size: var(--text-xl);
}

h6 {
  font-size: var(--text-lg);
}

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

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

a:hover {
  color: var(--accent-color-1);
}

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

ul, ol {
  list-style-position: inside;
  margin-bottom: var(--spacing-md);
}

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

/* Секции */
section {
  padding: var(--spacing-2xl) 0;
}

.section-title {
  text-align: center;
  margin-bottom: var(--spacing-lg);
  position: relative;
  color: var(--text-dark);
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-color), var(--accent-color-1));
  border-radius: var(--border-radius-full);
}

.section-subtitle {
  text-align: center;
  font-size: var(--text-xl);
  color: var(--text-medium);
  margin-bottom: var(--spacing-xl);
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

/* Кнопки */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: var(--border-radius-md);
  font-family: 'Roboto', sans-serif;
  font-weight: 500;
  font-size: var(--text-base);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  cursor: pointer;
  transition: all var(--transition-normal);
  box-shadow: var(--neomorphic-shadow);
  text-align: center;
  background-color: var(--surface-color);
  color: var(--text-dark);
}

.btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 15px 30px -10px rgba(0, 0, 0, 0.2);
}

.btn:active {
  transform: translateY(1px);
  box-shadow: var(--inset-neomorphic-shadow);
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary-color), var(--accent-color-1));
  color: var(--text-light);
}

.btn-secondary {
  background: linear-gradient(135deg, var(--secondary-color), var(--accent-color-2));
  color: var(--text-light);
}

.btn-tertiary {
  background: linear-gradient(135deg, var(--tertiary-color), var(--primary-color));
  color: var(--text-light);
}

/* Хедер */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background-color: rgba(245, 247, 250, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  transition: all var(--transition-normal);
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 80px;
}

.logo {
  font-family: 'Roboto', sans-serif;
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--primary-color);
  letter-spacing: 1px;
}

.main-nav {
  display: flex;
  align-items: center;
}

.nav-list {
  display: flex;
  list-style: none;
  margin: 0;
}

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

.nav-list a {
  font-family: 'Roboto', sans-serif;
  font-weight: 500;
  color: var(--text-dark);
  padding: 0.5rem 0.75rem;
  border-radius: var(--border-radius-md);
  transition: all var(--transition-fast);
  position: relative;
}

.nav-list a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--primary-color), var(--accent-color-1));
  transition: width var(--transition-normal);
}

.nav-list a:hover {
  color: var(--primary-color);
}

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

.mobile-nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
}

.hamburger {
  display: block;
  position: relative;
  width: 30px;
  height: 2px;
  background-color: var(--text-dark);
  transition: all var(--transition-fast);
}

.hamburger::before,
.hamburger::after {
  content: '';
  position: absolute;
  width: 30px;
  height: 2px;
  background-color: var(--text-dark);
  transition: all var(--transition-fast);
}

.hamburger::before {
  top: -8px;
}

.hamburger::after {
  bottom: -8px;
}

.mobile-nav-toggle[aria-expanded="true"] .hamburger {
  transform: rotate(45deg);
}

.mobile-nav-toggle[aria-expanded="true"] .hamburger::before {
  top: 0;
  transform: rotate(0);
  opacity: 0;
}

.mobile-nav-toggle[aria-expanded="true"] .hamburger::after {
  bottom: 0;
  transform: rotate(-90deg);
}

/* Hero Section */
.hero {
  position: relative;
  padding: 0;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  overflow: hidden;
}

.hero::before {
  content: '';
  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, 0.3));
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 800px;
  padding: var(--spacing-xl) 0;
}

.hero-title {
  font-size: clamp(2.5rem, 5vw, 4rem);
  margin-bottom: var(--spacing-md);
  color: var(--text-light);
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
  animation: fadeInUp 1s ease-out;
}

.hero-description {
  font-size: clamp(var(--text-lg), 2vw, var(--text-xl));
  margin-bottom: var(--spacing-xl);
  color: var(--text-light);
  text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.3);
  max-width: 80%;
  animation: fadeInUp 1s ease-out 0.3s both;
}

.hero-cta {
  display: flex;
  gap: var(--spacing-sm);
  animation: fadeInUp 1s ease-out 0.6s both;
}

/* Features Section */
.features {
  background-color: var(--surface-color);
}

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

.card {
  background-color: var(--surface-color);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--neomorphic-shadow);
  overflow: hidden;
  transition: transform var(--transition-normal);
  display: flex;
  flex-direction: column;
  align-items: center;
}

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

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

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

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

.card-content {
  padding: var(--spacing-lg);
  flex-grow: 1;
  text-align: center;
}

.card h3 {
  margin-top: 0;
  color: var(--text-dark);
  font-size: var(--text-xl);
}

.card p {
  color: var(--text-medium);
  margin-bottom: 0;
}

/* About Section */
.about {
  background-color: var(--surface-color);
}

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

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

.about-image {
  flex: 1 1 400px;
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--neomorphic-shadow);
}

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

.about-image:hover img {
  transform: scale(1.03);
}

/* Portfolio Section */
.portfolio {
  background-color: var(--surface-color);
}

.portfolio-slider {
  display: flex;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  gap: var(--spacing-lg);
  padding-bottom: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
  scrollbar-width: thin;
  scrollbar-color: var(--primary-color) var(--surface-color);
}

.portfolio-slider::-webkit-scrollbar {
  height: 8px;
}

.portfolio-slider::-webkit-scrollbar-track {
  background: var(--surface-color);
  border-radius: var(--border-radius-full);
}

.portfolio-slider::-webkit-scrollbar-thumb {
  background-color: var(--primary-color);
  border-radius: var(--border-radius-full);
}

.portfolio-item {
  flex: 0 0 350px;
  scroll-snap-align: start;
}

.slider-controls {
  display: flex;
  justify-content: center;
  gap: var(--spacing-md);
}

.prev-btn, .next-btn {
  padding: 0.5rem 1rem;
  background-color: var(--surface-color);
  border: none;
  border-radius: var(--border-radius-md);
  box-shadow: var(--neomorphic-shadow);
  cursor: pointer;
  transition: all var(--transition-normal);
}

.prev-btn:hover, .next-btn:hover {
  box-shadow: var(--inset-neomorphic-shadow);
}

/* Projects Section */
.projects {
  background-color: var(--surface-color);
}

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

/* Research Section */
.research {
  background-color: var(--surface-color);
}

.research-content {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
}

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

.research-image {
  flex: 1 1 400px;
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--neomorphic-shadow);
}

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

.research-image:hover img {
  transform: scale(1.03);
}

.research-resources {
  margin-top: var(--spacing-xl);
  padding: var(--spacing-lg);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--neomorphic-shadow);
  background-color: var(--surface-color);
}

.research-resources h3 {
  color: var(--text-dark);
  margin-bottom: var(--spacing-md);
}

.research-resources ul {
  list-style-type: none;
}

.research-resources li {
  margin-bottom: var(--spacing-sm);
}

.research-resources a {
  color: var(--primary-color);
  transition: color var(--transition-fast);
  display: inline-block;
  padding: 0.25rem 0;
  position: relative;
}

.research-resources a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background-color: var(--accent-color-1);
  transition: width var(--transition-normal);
}

.research-resources a:hover {
  color: var(--accent-color-1);
}

.research-resources a:hover::after {
  width: 100%;
}

/* Customer Stories Section */
.stories {
  background-color: var(--surface-color);
}

.testimonials-slider {
  display: flex;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  gap: var(--spacing-lg);
  padding-bottom: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
  scrollbar-width: thin;
  scrollbar-color: var(--primary-color) var(--surface-color);
}

.testimonials-slider::-webkit-scrollbar {
  height: 8px;
}

.testimonials-slider::-webkit-scrollbar-track {
  background: var(--surface-color);
  border-radius: var(--border-radius-full);
}

.testimonials-slider::-webkit-scrollbar-thumb {
  background-color: var(--primary-color);
  border-radius: var(--border-radius-full);
}

.testimonial {
  flex: 0 0 350px;
  scroll-snap-align: start;
}

.testimonial .card {
  height: 100%;
}

.testimonial .card-image {
  width: 150px;
  height: 150px;
  border-radius: var(--border-radius-full);
  margin: var(--spacing-lg) auto var(--spacing-md);
  overflow: hidden;
}

.testimonial .card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.testimonial blockquote {
  font-style: italic;
  position: relative;
}

.testimonial blockquote::before {
  content: '"';
  font-size: 3rem;
  color: var(--primary-color);
  opacity: 0.3;
  position: absolute;
  top: -20px;
  left: -10px;
}

.testimonial cite {
  display: block;
  font-style: normal;
  font-weight: bold;
  margin-top: var(--spacing-md);
  color: var(--primary-color);
}

/* Partners Section */
.partners {
  background-color: var(--surface-color);
}

.partners-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-xl);
  align-items: center;
  justify-items: center;
}

.partner {
  text-align: center;
  padding: var(--spacing-md);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--neomorphic-shadow);
  background-color: var(--surface-color);
  transition: transform var(--transition-normal);
  display: flex;
  flex-direction: column;
  align-items: center;
}

.partner:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 30px -10px rgba(0, 0, 0, 0.15);
}

.partner img {
  width: 100%;
  max-width: 200px;
  height: 100px;
  object-fit: contain;
  margin-bottom: var(--spacing-md);
}

.partner h3 {
  font-size: var(--text-lg);
  margin-bottom: 0;
}

/* FAQ Section */
.faq {
  background-color: var(--surface-color);
}

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

.faq-item {
  margin-bottom: var(--spacing-md);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--neomorphic-shadow);
  background-color: var(--surface-color);
  overflow: hidden;
}

.faq-question {
  padding: var(--spacing-md);
  cursor: pointer;
  position: relative;
  font-size: var(--text-lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--text-dark);
  transition: all var(--transition-fast);
}

.faq-question::after {
  content: '+';
  font-size: 1.5rem;
  color: var(--primary-color);
}

.faq-item.active .faq-question::after {
  content: '-';
}

.faq-answer {
  padding: 0 var(--spacing-md);
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-normal), padding var(--transition-normal);
}

.faq-item.active .faq-answer {
  padding: 0 var(--spacing-md) var(--spacing-md);
  max-height: 1000px;
}

/* Contact Section */
.contact {
  background-color: var(--surface-color);
}

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

.contact-info {
  flex: 1 1 350px;
  padding: var(--spacing-lg);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--neomorphic-shadow);
  background-color: var(--surface-color);
}

.contact-info h3 {
  margin-top: 0;
  color: var(--text-dark);
}

.contact-info ul {
  list-style-type: none;
  margin-bottom: var(--spacing-lg);
}

.contact-info li {
  margin-bottom: var(--spacing-sm);
  display: flex;
  align-items: center;
}

.contact-info i {
  margin-right: var(--spacing-sm);
  color: var(--primary-color);
}

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

.contact-map img {
  width: 100%;
  height: 300px;
  object-fit: cover;
}

.contact-form {
  flex: 1 1 450px;
  padding: var(--spacing-lg);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--neomorphic-shadow);
  background-color: var(--surface-color);
}

.contact-form h3 {
  margin-top: 0;
  color: var(--text-dark);
}

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

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

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: var(--spacing-sm);
  border: none;
  border-radius: var(--border-radius-md);
  background-color: var(--surface-color);
  box-shadow: var(--inset-neomorphic-shadow);
  color: var(--text-dark);
  font-family: 'Lato', sans-serif;
  transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  box-shadow: inset 2px 2px 5px var(--dark-shadow), inset -2px -2px 5px var(--light-shadow), 0 0 0 3px rgba(52, 152, 219, 0.2);
}

.checkbox-container {
  display: flex;
  align-items: center;
  position: relative;
  padding-left: 35px;
  cursor: pointer;
  user-select: none;
}

.checkbox-container input {
  position: absolute;
  opacity: 0;
  cursor: pointer;
  height: 0;
  width: 0;
}

.checkmark {
  position: absolute;
  top: 0;
  left: 0;
  height: 25px;
  width: 25px;
  background-color: var(--surface-color);
  border-radius: var(--border-radius-sm);
  box-shadow: var(--inset-neomorphic-shadow);
}

.checkbox-container:hover input ~ .checkmark {
  background-color: var(--surface-color);
}

.checkbox-container input:checked ~ .checkmark {
  background-color: var(--primary-color);
  box-shadow: var(--inset-neomorphic-shadow);
}

.checkmark:after {
  content: "";
  position: absolute;
  display: none;
}

.checkbox-container input:checked ~ .checkmark:after {
  display: block;
}

.checkbox-container .checkmark:after {
  left: 9px;
  top: 5px;
  width: 5px;
  height: 10px;
  border: solid white;
  border-width: 0 3px 3px 0;
  transform: rotate(45deg);
}

/* Footer */
.footer {
  background-color: var(--surface-color);
  padding: var(--spacing-2xl) 0 var(--spacing-md);
  position: relative;
}

.footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--primary-color), var(--accent-color-1), var(--secondary-color));
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
}

.footer-brand h3 {
  color: var(--primary-color);
  font-size: var(--text-2xl);
  margin-bottom: var(--spacing-sm);
}

.footer-brand p {
  color: var(--text-medium);
}

.footer-links h4,
.footer-legal h4,
.footer-social h4 {
  color: var(--text-dark);
  font-size: var(--text-lg);
  margin-bottom: var(--spacing-md);
}

.footer-links ul,
.footer-legal ul {
  list-style-type: none;
  margin: 0;
}

.footer-links li,
.footer-legal li {
  margin-bottom: var(--spacing-xs);
}

.footer-links a,
.footer-legal a {
  color: var(--text-medium);
  transition: color var(--transition-fast);
}

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

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

.social-links a {
  color: var(--text-medium);
  font-size: var(--text-base);
  transition: color var(--transition-fast);
  display: inline-block;
  margin-right: var(--spacing-sm);
}

.social-links a:hover {
  color: var(--primary-color);
  transform: translateY(-2px);
}

.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-md);
  border-top: 1px solid rgba(0, 0, 0, 0.05);
}

.footer-bottom p {
  color: var(--text-medium);
  font-size: var(--text-sm);
  margin-bottom: 0;
}

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

.success-content {
  max-width: 600px;
  padding: var(--spacing-xl);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--neomorphic-shadow);
  background-color: var(--surface-color);
  animation: fadeInUp 1s ease-out;
}

.success-icon {
  font-size: 5rem;
  color: var(--tertiary-color);
  margin-bottom: var(--spacing-md);
}

.success-title {
  color: var(--text-dark);
  margin-bottom: var(--spacing-md);
}

.success-message {
  color: var(--text-medium);
  margin-bottom: var(--spacing-lg);
}

/* Privacy and Terms Pages */
.page-content {
  padding-top: 100px;
  max-width: 800px;
  margin: 0 auto;
  padding-bottom: var(--spacing-2xl);
}

.page-title {
  margin-bottom: var(--spacing-xl);
  color: var(--text-dark);
}

.page-section {
  margin-bottom: var(--spacing-xl);
}

.page-section h2 {
  color: var(--text-dark);
  margin-bottom: var(--spacing-md);
}

.page-section p {
  color: var(--text-medium);
  margin-bottom: var(--spacing-md);
}

.page-section ul {
  margin-bottom: var(--spacing-md);
  padding-left: var(--spacing-md);
}

.page-section li {
  margin-bottom: var(--spacing-xs);
  color: var(--text-medium);
}

/* Cookie Popup */
#cookie-popup {
  border-radius: var(--border-radius-md) var(--border-radius-md) 0 0;
  box-shadow: 0 -5px 20px rgba(0, 0, 0, 0.2);
}

#accept-cookies {
  transition: background-color var(--transition-fast);
}

#accept-cookies:hover {
  background-color: #3a8f3f;
}

/* Адаптивная типографика */
@media (max-width: 768px) {
  :root {
    --text-xs: 0.7rem;
    --text-sm: 0.8rem;
    --text-base: 0.9rem;
    --text-lg: 1rem;
    --text-xl: 1.125rem;
    --text-2xl: 1.25rem;
    --text-3xl: 1.5rem;
    --text-4xl: 1.875rem;
    --text-5xl: 2.25rem;
  }
  
  .section-title {
    font-size: var(--text-3xl);
  }
  
  .section-subtitle {
    font-size: var(--text-lg);
  }
  
  .hero-title {
    font-size: clamp(2rem, 7vw, 3rem);
  }
  
  .hero-description {
    font-size: clamp(var(--text-base), 4vw, var(--text-lg));
  }
}

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

@keyframes morphing {
  0% {
    border-radius: 60% 40% 30% 70% / 60% 30% 70% 40%;
  }
  50% {
    border-radius: 30% 60% 70% 40% / 50% 60% 30% 60%;
  }
  100% {
    border-radius: 60% 40% 30% 70% / 60% 30% 70% 40%;
  }
}

/* Медиа-запросы */
@media (max-width: 992px) {
  .features-grid,
  .projects-grid {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  }
  
  .footer-content {
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  }
}

@media (max-width: 768px) {
  .header-inner {
    height: 70px;
  }
  
  .main-nav {
    position: fixed;
    top: 70px;
    left: 0;
    width: 100%;
    height: 0;
    background-color: var(--surface-color);
    overflow: hidden;
    transition: height var(--transition-normal);
    box-shadow: 0 5px 10px rgba(0, 0, 0, 0.1);
  }
  
  .main-nav.active {
    height: auto;
  }
  
  .nav-list {
    flex-direction: column;
    padding: var(--spacing-md);
  }
  
  .nav-list li {
    margin-left: 0;
    margin-bottom: var(--spacing-sm);
  }
  
  .mobile-nav-toggle {
    display: block;
  }
  
  .hero-content {
    text-align: center;
    padding: var(--spacing-xl) var(--spacing-md);
  }
  
  .hero-description {
    max-width: 100%;
  }
  
  .hero-cta {
    flex-direction: column;
    align-items: center;
  }
  
  .contact-content {
    flex-direction: column;
  }
  
  .about-content,
  .research-content {
    flex-direction: column;
  }
  
  .about-image,
  .research-image {
    order: -1;
  }
}

@media (max-width: 576px) {
  .portfolio-item,
  .testimonial {
    flex: 0 0 280px;
  }
  
  .partners-grid {
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  }
  
  .btn {
    width: 100%;
  }
  
  .hero-cta {
    width: 100%;
  }
}

/* Кастомные читаемые ссылки */
.read-more {
  display: inline-flex;
  align-items: center;
  color: var(--primary-color);
  font-weight: 500;
  transition: all var(--transition-fast);
  position: relative;
  padding-right: 24px;
}

.read-more::after {
  content: '→';
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  transition: transform var(--transition-fast);
}

.read-more:hover {
  color: var(--accent-color-1);
}

.read-more:hover::after {
  transform: translate(5px, -50%);
}

/* Утилиты */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

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

.text-right {
  text-align: right;
}

.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.my-0 { margin-top: 0; margin-bottom: 0; }
.mt-1 { margin-top: var(--spacing-xs); }
.mb-1 { margin-bottom: var(--spacing-xs); }
.my-1 { margin-top: var(--spacing-xs); margin-bottom: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.my-2 { margin-top: var(--spacing-sm); margin-bottom: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-md); }
.my-3 { margin-top: var(--spacing-md); margin-bottom: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }
.mb-4 { margin-bottom: var(--spacing-lg); }
.my-4 { margin-top: var(--spacing-lg); margin-bottom: var(--spacing-lg); }
.mt-5 { margin-top: var(--spacing-xl); }
.mb-5 { margin-bottom: var(--spacing-xl); }
.my-5 { margin-top: var(--spacing-xl); margin-bottom: var(--spacing-xl); }

.pt-0 { padding-top: 0; }
.pb-0 { padding-bottom: 0; }
.py-0 { padding-top: 0; padding-bottom: 0; }
.pt-1 { padding-top: var(--spacing-xs); }
.pb-1 { padding-bottom: var(--spacing-xs); }
.py-1 { padding-top: var(--spacing-xs); padding-bottom: var(--spacing-xs); }
.pt-2 { padding-top: var(--spacing-sm); }
.pb-2 { padding-bottom: var(--spacing-sm); }
.py-2 { padding-top: var(--spacing-sm); padding-bottom: var(--spacing-sm); }
.pt-3 { padding-top: var(--spacing-md); }
.pb-3 { padding-bottom: var(--spacing-md); }
.py-3 { padding-top: var(--spacing-md); padding-bottom: var(--spacing-md); }
.pt-4 { padding-top: var(--spacing-lg); }
.pb-4 { padding-bottom: var(--spacing-lg); }
.py-4 { padding-top: var(--spacing-lg); padding-bottom: var(--spacing-lg); }
.pt-5 { padding-top: var(--spacing-xl); }
.pb-5 { padding-bottom: var(--spacing-xl); }
.py-5 { padding-top: var(--spacing-xl); padding-bottom: var(--spacing-xl); }