:root {
  /* Основная цветовая палитра */
  --primary-color: #00A1E0;
  --primary-dark: #0080B3;
  --primary-light: #33B5E8;
  --secondary-color: #00E676;
  --secondary-dark: #00B25A;
  --secondary-light: #33EF98;
  --accent-color: #FF3D71;
  --accent-dark: #D03060;
  --accent-light: #FF6694;
  
  /* Нейтральные цвета */
  --dark-color: #1A1A2E;
  --dark-medium: #252543;
  --dark-light: #2E2E50;
  --light-color: #FFFFFF;
  --light-medium: #F0F0F7;
  --light-dark: #E0E0EB;
  
  /* Градиенты */
  --primary-gradient: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  --dark-gradient: linear-gradient(135deg, var(--dark-color), var(--dark-medium));
  --accent-gradient: linear-gradient(135deg, var(--accent-color), var(--primary-color));
  
  /* Тени */
  --card-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
  --button-shadow: 0 4px 12px rgba(0, 161, 224, 0.3);
  --hover-shadow: 0 12px 30px rgba(0, 161, 224, 0.5);
  
  /* Типографика */
  --heading-font: 'Oswald', sans-serif;
  --body-font: 'Nunito', sans-serif;
  --heading-weight: 600;
  --body-weight: 400;
  --body-weight-bold: 600;
  
  /* Размеры и отступы */
  --container-width: 1200px;
  --section-spacing: 80px;
  --card-spacing: 30px;
  --element-spacing: 20px;
  --border-radius: 12px;
  --button-radius: 50px;
  --transition-fast: 0.3s ease;
  --transition-medium: 0.5s ease;
  --transition-slow: 0.8s ease;
}

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

html {
  scroll-behavior: smooth;
}

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

h1, h2, h3, h4, h5, h6 {
  font-family: var(--heading-font);
  font-weight: var(--heading-weight);
  line-height: 1.2;
  margin-bottom: 1rem;
}

h1 {
  font-size: 3.5rem;
}

h2 {
  font-size: 2.5rem;
}

h3 {
  font-size: 1.8rem;
}

h4 {
  font-size: 1.3rem;
}

p {
  margin-bottom: 1.5rem;
}

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

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

ul, ol {
  list-style-position: inside;
  margin-bottom: 1.5rem;
}

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

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

section {
  padding: 60px 0;
  position: relative;
}

.section-title {
  text-align: center;
  margin-bottom: 40px;
  color: var(--dark-color);
  position: relative;
  z-index: 2;
}

.section-title::after {
  content: '';
  display: block;
  width: 80px;
  height: 4px;
  background: var(--primary-gradient);
  margin: 15px auto 0;
  border-radius: 2px;
}

/* Кнопки - глобальные стили */
.btn, 
button,
input[type="submit"] {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  font-family: var(--heading-font);
  font-weight: 500;
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  border-radius: var(--button-radius);
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  position: relative;
  overflow: hidden;
  box-shadow: var(--button-shadow);
  text-align: center;
}

.btn::before, 
button::before,
input[type="submit"]::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: all 0.6s;
}

.btn:hover::before, 
button:hover::before,
input[type="submit"]:hover::before {
  left: 100%;
}

.btn:hover, 
button:hover,
input[type="submit"]:hover {
  transform: translateY(-3px);
  box-shadow: var(--hover-shadow);
}

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

.btn-secondary {
  background: var(--light-medium);
  color: var(--dark-color);
}

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

.btn-sm {
  padding: 8px 18px;
  font-size: 0.9rem;
}

/* Верхняя навигация */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background-color: rgba(26, 26, 46, 0.9);
  backdrop-filter: blur(10px);
  z-index: 1000;
  padding: 15px 0;
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
  transition: all var(--transition-fast);
}

.header.scrolled {
  padding: 10px 0;
  background-color: rgba(26, 26, 46, 0.95);
}

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

.logo {
  z-index: 101;
}

.logo img {
  height: 40px;
  width: auto;
  transition: all var(--transition-fast);
}

.header.scrolled .logo img {
  height: 35px;
}

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

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

.nav-list li {
  margin: 0 15px;
}

.nav-list a {
  color: var(--light-color);
  font-weight: 500;
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  padding: 5px 0;
  position: relative;
}

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

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

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

.burger-menu {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 30px;
  height: 20px;
  cursor: pointer;
  z-index: 101;
}

.burger-menu span {
  display: block;
  height: 3px;
  width: 100%;
  background-color: var(--light-color);
  border-radius: 3px;
  transition: all var(--transition-fast);
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  position: relative;
  padding-top: 100px;
  color: var(--light-color);
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    to bottom,
    rgba(26, 26, 46, 0.8),
    rgba(26, 26, 46, 0.5)
  );
  z-index: 1;
}

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

.hero h1 {
  font-size: 3.5rem;
  margin-bottom: 1.5rem;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
  color: #FFFFFF;
}

.hero p {
  font-size: 1.2rem;
  margin-bottom: 2.5rem;
  text-shadow: 0 2px 5px rgba(0, 0, 0, 0.3);
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
  color: #FFFFFF;
}

.hero-buttons {
  display: flex;
  justify-content: center;
  gap: 20px;
}

/* About Section */
.about-section {
  background-color: var(--light-color);
  position: relative;
  overflow: hidden;
}

.about-content {
  display: flex;
  align-items: center;
  gap: 50px;
  margin-bottom: 50px;
}

.about-text {
  flex: 1;
}

.about-image {
  flex: 1;
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--card-shadow);
  transform: perspective(1000px) rotateY(-5deg);
  transition: all var(--transition-medium);
}

.about-image:hover {
  transform: perspective(1000px) rotateY(0);
}

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

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

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

.stat-card {
  flex: 1;
  min-width: 200px;
  background: var(--light-medium);
  padding: 30px 20px;
  border-radius: var(--border-radius);
  text-align: center;
  box-shadow: var(--card-shadow);
  transform: translateY(0);
  transition: all var(--transition-fast);
}

.stat-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--hover-shadow);
  background: var(--primary-gradient);
  color: var(--light-color);
}

.stat-card h3 {
  font-size: 2.5rem;
  margin-bottom: 10px;
  background: var(--primary-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.stat-card:hover h3 {
  background: var(--light-color);
  -webkit-background-clip: text;
  background-clip: text;
}

.stat-card p {
  font-size: 1rem;
  margin-bottom: 0;
}

/* Research Section */
.research-section {
  background-color: var(--light-medium);
  position: relative;
}

.research-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: url('image/dot-pattern.jpg');
  background-size: 200px;
  opacity: 0.05;
  z-index: 0;
}

.research-content {
  display: flex;
  align-items: center;
  gap: 50px;
  margin-bottom: 50px;
  position: relative;
  z-index: 2;
}

.research-text {
  flex: 1;
}

.research-chart {
  flex: 1;
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--card-shadow);
  transform: perspective(1000px) rotateY(5deg);
  transition: all var(--transition-medium);
}

.research-chart:hover {
  transform: perspective(1000px) rotateY(0);
}

.research-chart img {
  width: 100%;
  height: auto;
  object-fit: cover;
  transition: all var(--transition-medium);
}

.research-chart:hover img {
  transform: scale(1.05);
}

.research-cards {
  display: flex;
  flex-wrap: wrap;
  gap: 30px;
  margin-top: 40px;
}

.info-card {
  flex: 1;
  min-width: 300px;
  background: var(--light-color);
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--card-shadow);
  transition: all var(--transition-fast);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

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

.info-card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  margin: 0 auto;
}

.info-card h3 {
  padding: 20px 20px 10px;
  color: var(--dark-color);
  font-size: 1.5rem;
}

.info-card p {
  padding: 0 20px 20px;
  color: var(--dark-medium);
  margin-bottom: 0;
}

/* Gallery Section */
.gallery-section {
  background-color: var(--dark-color);
  color: var(--light-color);
  position: relative;
  overflow: hidden;
}

.gallery-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at top right, var(--primary-dark), transparent 50%);
  opacity: 0.1;
  z-index: 1;
}

.gallery-section .section-title {
  color: var(--light-color);
}

.gallery-content {
  position: relative;
  z-index: 2;
}

.gallery-carousel {
  display: flex;
  overflow-x: hidden;
  scroll-snap-type: x mandatory;
  gap: 30px;
  margin-bottom: 30px;
  position: relative;
}

.carousel-item {
  flex: 0 0 calc(33.333% - 20px);
  scroll-snap-align: start;
  border-radius: var(--border-radius);
  overflow: hidden;
  position: relative;
  box-shadow: var(--card-shadow);
  transition: all var(--transition-fast);
  transform: perspective(1000px) rotateY(0);
}

.carousel-item:hover {
  transform: perspective(1000px) rotateY(5deg) scale(1.02);
}

.carousel-item img {
  width: 100%;
  height: 250px;
  object-fit: cover;
  transition: all var(--transition-medium);
}

.carousel-item:hover img {
  transform: scale(1.1);
}

.carousel-caption {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  padding: 20px;
  background: linear-gradient(to top, rgba(0,0,0,0.8), transparent);
  color: var(--light-color);
  text-align: left;
}

.carousel-caption h3 {
  font-size: 1.3rem;
  margin-bottom: 5px;
}

.carousel-caption p {
  font-size: 0.9rem;
  margin-bottom: 0;
  opacity: 0.9;
}

.gallery-controls {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-top: 20px;
}

.prev-btn,
.next-btn {
  background: transparent;
  color: var(--light-color);
  border: 2px solid var(--light-color);
  border-radius: var(--button-radius);
  padding: 10px 25px;
  cursor: pointer;
  font-family: var(--heading-font);
  transition: all var(--transition-fast);
}

.prev-btn:hover,
.next-btn:hover {
  background: var(--light-color);
  color: var(--dark-color);
}

/* Resources Section */
.resources-section {
  background-color: var(--light-color);
  position: relative;
}

.resources-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
  gap: 30px;
}

.resource-card {
  background: var(--light-medium);
  border-radius: var(--border-radius);
  padding: 30px;
  text-align: center;
  box-shadow: var(--card-shadow);
  transition: all var(--transition-fast);
  display: flex;
  flex-direction: column;
  align-items: center;
}

.resource-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--hover-shadow);
  background: linear-gradient(135deg, var(--light-medium), var(--light-color));
}

.resource-icon {
  width: 80px;
  height: 80px;
  margin-bottom: 20px;
  border-radius: 50%;
  overflow: hidden;
  box-shadow: var(--card-shadow);
}

.resource-icon img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: all var(--transition-fast);
}

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

.resource-card h3 {
  margin-bottom: 15px;
  color: var(--dark-color);
}

.resource-card p {
  color: var(--dark-medium);
  margin-bottom: 20px;
}

.resource-link {
  color: var(--primary-color);
  font-weight: var(--body-weight-bold);
  display: inline-block;
  padding: 5px 0;
  position: relative;
  transition: all var(--transition-fast);
  margin-top: auto;
}

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

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

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

/* Blog Section */
.blog-section {
  background-color: var(--light-medium);
  position: relative;
}

.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 30px;
  margin-bottom: 40px;
}

.blog-card {
  background: var(--light-color);
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--card-shadow);
  transition: all var(--transition-fast);
  display: flex;
  flex-direction: column;
  align-items: center;
}

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

.blog-image {
  width: 100%;
  height: 200px;
  overflow: hidden;
}

.blog-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: all var(--transition-medium);
}

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

.blog-content {
  padding: 25px;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  width: 100%;
}

.blog-date {
  color: var(--primary-color);
  font-size: 0.9rem;
  margin-bottom: 10px;
  display: block;
}

.blog-content h3 {
  font-size: 1.4rem;
  margin-bottom: 15px;
  color: var(--dark-color);
  transition: all var(--transition-fast);
}

.blog-card:hover .blog-content h3 {
  color: var(--primary-color);
}

.blog-content p {
  color: var(--dark-medium);
  margin-bottom: 20px;
}

.read-more {
  margin-top: auto;
  color: var(--primary-color);
  font-weight: var(--body-weight-bold);
  display: inline-block;
  padding: 5px 0;
  position: relative;
  transition: all var(--transition-fast);
}

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

.read-more:hover {
  color: var(--primary-dark);
}

.read-more:hover::after {
  width: 100%;
}

.blog-cta {
  text-align: center;
  margin-top: 40px;
}

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

.community-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at bottom left, var(--primary-dark), transparent 50%);
  opacity: 0.1;
  z-index: 1;
}

.community-section .section-title {
  color: var(--light-color);
}

.community-intro {
  max-width: 800px;
  margin: 0 auto 60px;
  text-align: center;
  position: relative;
  z-index: 2;
}

.sub-title {
  text-align: center;
  margin-bottom: 30px;
  color: var(--light-color);
  font-size: 2rem;
}

.testimonials {
  margin-bottom: 70px;
  position: relative;
  z-index: 2;
}

.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}

.testimonial-card {
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(10px);
  border-radius: var(--border-radius);
  padding: 30px;
  box-shadow: var(--card-shadow);
  transition: all var(--transition-fast);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.testimonial-card:hover {
  transform: translateY(-10px);
  background: rgba(255, 255, 255, 0.1);
}

.testimonial-image {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  overflow: hidden;
  margin-bottom: 20px;
  border: 3px solid var(--primary-color);
  transition: all var(--transition-fast);
}

.testimonial-card:hover .testimonial-image {
  transform: scale(1.1);
  border-color: var(--secondary-color);
}

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

.testimonial-content p {
  margin-bottom: 20px;
  font-style: italic;
}

.testimonial-content h4 {
  font-size: 1.2rem;
  margin-bottom: 5px;
  color: var(--primary-light);
}

.testimonial-content span {
  font-size: 0.9rem;
  opacity: 0.8;
}

.community-events {
  position: relative;
  z-index: 2;
}

.events-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}

.event-card {
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(10px);
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--card-shadow);
  transition: all var(--transition-fast);
  display: flex;
  flex-direction: column;
  align-items: center;
}

.event-card:hover {
  transform: translateY(-10px);
  background: rgba(255, 255, 255, 0.1);
}

.event-image {
  width: 100%;
  height: 180px;
  overflow: hidden;
}

.event-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: all var(--transition-medium);
}

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

.event-content {
  padding: 25px;
  flex-grow: 1;
  width: 100%;
  text-align: center;
}

.event-content h4 {
  font-size: 1.3rem;
  margin-bottom: 10px;
  color: var(--light-color);
}

.event-date {
  color: var(--primary-light);
  font-size: 0.9rem;
  margin-bottom: 15px;
  display: block;
}

.event-content p {
  margin-bottom: 20px;
}

/* Careers Section */
.careers-section {
  background-color: var(--light-color);
  position: relative;
}

.careers-intro {
  max-width: 800px;
  margin: 0 auto 60px;
  text-align: center;
}

.careers-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-bottom: 50px;
}

.career-card {
  background: var(--light-medium);
  border-radius: var(--border-radius);
  padding: 30px;
  box-shadow: var(--card-shadow);
  transition: all var(--transition-fast);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.career-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--hover-shadow);
  background: linear-gradient(135deg, var(--light-medium), var(--light-color));
}

.career-icon {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  overflow: hidden;
  margin-bottom: 20px;
  box-shadow: var(--card-shadow);
}

.career-icon img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: all var(--transition-fast);
}

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

.career-card h3 {
  margin-bottom: 15px;
  color: var(--dark-color);
}

.career-card p {
  color: var(--dark-medium);
  margin-bottom: 20px;
}

.career-skills {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  list-style: none;
  margin-bottom: 0;
}

.career-skills li {
  background: var(--primary-color);
  color: var(--light-color);
  padding: 5px 12px;
  border-radius: 20px;
  font-size: 0.9rem;
  transition: all var(--transition-fast);
}

.career-card:hover .career-skills li {
  background: var(--primary-dark);
}

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

/* Contact Section */
.contact-section {
  background-color: var(--dark-medium);
  color: var(--light-color);
  position: relative;
}

.contact-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at center, var(--primary-dark), transparent 50%);
  opacity: 0.05;
  z-index: 1;
}

.contact-section .section-title {
  color: var(--light-color);
}

.contact-content {
  display: flex;
  flex-wrap: wrap;
  gap: 50px;
  position: relative;
  z-index: 2;
}

.contact-info {
  flex: 1;
  min-width: 300px;
  display: flex;
  flex-direction: column;
  gap: 30px;
}

.info-card {
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(10px);
  border-radius: var(--border-radius);
  padding: 25px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  transition: all var(--transition-fast);
}

.info-card:hover {
  transform: translateY(-5px);
  background: rgba(255, 255, 255, 0.1);
}

.info-icon {
  width: 60px;
  height: 60px;
  margin-bottom: 15px;
  border-radius: 50%;
  overflow: hidden;
}

.info-icon img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.info-card h3 {
  margin-bottom: 10px;
  color: var(--primary-light);
}

.info-card p {
  margin-bottom: 0;
}

.social-media {
  margin-top: 20px;
}

.social-links {
  display: flex;
  flex-wrap: wrap;
  gap: 15px;
  justify-content: center;
}

.social-link {
  color: var(--light-color);
  font-weight: var(--body-weight-bold);
  transition: all var(--transition-fast);
  position: relative;
  padding: 5px 0;
}

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

.social-link:hover {
  color: var(--primary-light);
}

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

.contact-form-container {
  flex: 1;
  min-width: 300px;
}

.contact-form {
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(10px);
  border-radius: var(--border-radius);
  padding: 40px;
  box-shadow: var(--card-shadow);
}

.form-group {
  margin-bottom: 25px;
}

.form-group label {
  display: block;
  margin-bottom: 8px;
  font-weight: var(--body-weight-bold);
  color: var(--light-color);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 15px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--border-radius);
  color: var(--light-color);
  font-family: var(--body-font);
  font-size: 1rem;
  transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary-color);
  background: rgba(255, 255, 255, 0.15);
}

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

.contact-form .btn-primary {
  width: 100%;
}

/* Footer Section */
.footer {
  background-color: var(--dark-color);
  color: var(--light-color);
  padding: 70px 0 30px;
  position: relative;
}

.footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to bottom, var(--dark-medium), var(--dark-color));
  opacity: 0.5;
  z-index: 0;
}

.footer-content {
  display: flex;
  flex-wrap: wrap;
  gap: 50px;
  margin-bottom: 50px;
  position: relative;
  z-index: 1;
}

.footer-logo {
  flex: 1;
  min-width: 250px;
}

.footer-logo img {
  margin-bottom: 20px;
  height: 50px;
  width: auto;
}

.footer-logo p {
  max-width: 300px;
  opacity: 0.8;
}

.footer-links {
  flex: 2;
  display: flex;
  flex-wrap: wrap;
  gap: 30px;
}

.footer-column {
  flex: 1;
  min-width: 120px;
}

.footer-column h3 {
  color: var(--primary-light);
  margin-bottom: 20px;
  font-size: 1.3rem;
}

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

.footer-column ul li {
  margin-bottom: 10px;
}

.footer-column ul li a {
  color: var(--light-medium);
  transition: all var(--transition-fast);
  position: relative;
  padding-left: 15px;
}

.footer-column ul li a::before {
  content: '→';
  position: absolute;
  left: 0;
  opacity: 0;
  transition: all var(--transition-fast);
}

.footer-column ul li a:hover {
  color: var(--primary-light);
  padding-left: 20px;
}

.footer-column ul li a:hover::before {
  opacity: 1;
}

.footer-social {
  flex: 1;
  min-width: 200px;
}

.footer-social h3 {
  color: var(--primary-light);
  margin-bottom: 20px;
  font-size: 1.3rem;
}

.footer-social .social-links {
  justify-content: flex-start;
}

.footer-bottom {
  text-align: center;
  padding-top: 30px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  position: relative;
  z-index: 1;
}

.footer-bottom p {
  margin-bottom: 10px;
  font-size: 0.9rem;
  opacity: 0.8;
}

/* Cookie Popup */
.cookie-popup {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background-color: rgba(0, 0, 0, 0.85);
  color: var(--light-color);
  padding: 15px 20px;
  z-index: 9999;
  box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.2);
  transform: translateY(100%);
  animation: slideUp 0.5s forwards;
}

@keyframes slideUp {
  to {
    transform: translateY(0);
  }
}

#accept-cookies {
  background-color: var(--primary-color);
  color: var(--light-color);
  border: none;
  padding: 8px 20px;
  border-radius: 4px;
  cursor: pointer;
  font-weight: bold;
  transition: all var(--transition-fast);
}

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

/* Success Page */
.success-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--light-medium), var(--light-color));
  padding: 20px;
  text-align: center;
}

.success-container {
  max-width: 600px;
  background: var(--light-color);
  border-radius: var(--border-radius);
  padding: 50px;
  box-shadow: var(--card-shadow);
  animation: fadeInUp 1s;
}

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

.success-icon {
  width: 100px;
  height: 100px;
  margin: 0 auto 30px;
  background: var(--primary-gradient);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--light-color);
  font-size: 50px;
}

.success-page h1 {
  margin-bottom: 20px;
  color: var(--dark-color);
}

.success-page p {
  margin-bottom: 30px;
  color: var(--dark-medium);
}

/* About, Terms, Privacy Pages */
.page-content {
  padding-top: 100px;
  min-height: calc(100vh - 250px);
}

.page-header {
  background: var(--primary-gradient);
  padding: 60px 0;
  text-align: center;
  color: var(--light-color);
}

.page-header h1 {
  margin-bottom: 20px;
}

.page-section {
  padding: 60px 0;
}

.page-section h2 {
  margin-bottom: 30px;
  color: var(--dark-color);
}

.page-section p {
  margin-bottom: 20px;
  color: var(--dark-medium);
}

/* Responsive Design */
@media (max-width: 1200px) {
  .container {
    padding: 0 30px;
  }
  
  h1 {
    font-size: 3rem;
  }
  
  h2 {
    font-size: 2.2rem;
  }
}

@media (max-width: 992px) {
  .about-content,
  .research-content {
    flex-direction: column;
    gap: 40px;
  }
  
  .about-image,
  .research-chart {
    max-width: 600px;
    margin: 0 auto;
  }
  
  .stat-card,
  .info-card {
    flex-basis: calc(50% - 15px);
  }
  
  .carousel-item {
    flex: 0 0 calc(50% - 15px);
  }
  
  h1 {
    font-size: 2.8rem;
  }
}

@media (max-width: 768px) {
  .burger-menu {
    display: flex;
  }
  
  .main-nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 300px;
    height: 100vh;
    background: var(--dark-color);
    padding: 100px 30px 30px;
    transition: all var(--transition-medium);
    z-index: 100;
    box-shadow: -5px 0 30px rgba(0, 0, 0, 0.2);
  }
  
  .main-nav.active {
    right: 0;
  }
  
  .nav-list {
    flex-direction: column;
    gap: 20px;
  }
  
  .nav-list li {
    margin: 0;
  }
  
  .nav-list a {
    display: block;
    font-size: 1.2rem;
  }
  
  .hero h1 {
    font-size: 2.5rem;
  }
  
  .section-title {
    font-size: 2rem;
  }
  
  .hero-buttons {
    flex-direction: column;
    gap: 15px;
  }
  
  .hero-buttons .btn {
    width: 100%;
  }
  
  .contact-content {
    flex-direction: column;
  }
  
  .stat-card,
  .info-card {
    flex-basis: 100%;
  }
  
  .carousel-item {
    flex: 0 0 100%;
  }
  
  .footer-content {
    flex-direction: column;
    gap: 40px;
  }
  
  .footer-links {
    width: 100%;
  }
}

@media (max-width: 576px) {
  h1 {
    font-size: 2.2rem;
  }
  
  h2 {
    font-size: 1.8rem;
  }
  
  h3 {
    font-size: 1.5rem;
  }
  
  .container {
    padding: 0 20px;
  }
  
  .research-cards,
  .blog-grid,
  .testimonial-grid,
  .events-grid,
  .careers-grid {
    grid-template-columns: 1fr;
  }
  
  .stats-container {
    flex-direction: column;
    gap: 20px;
  }
  
  .stat-card {
    width: 100%;
  }
  
  .footer-column {
    width: 100%;
  }
}

/* Animation Classes */
.fade-in {
  animation: fadeIn 1s;
}

.fade-in-up {
  animation: fadeInUp 1s;
}

.scale-in {
  animation: scaleIn 0.5s;
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes scaleIn {
  from {
    transform: scale(0.9);
    opacity: 0;
  }
  to {
    transform: scale(1);
    opacity: 1;
  }
}

/* 3D Effects */
.card-3d {
  transform-style: preserve-3d;
  perspective: 1000px;
}

.card-3d:hover {
  transform: rotateY(5deg) rotateX(5deg);
}

.parallax-bg {
  transform: translateZ(-10px) scale(1.5);
}

.floating {
  animation: floating 3s infinite ease-in-out;
}

@keyframes floating {
  0% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-20px);
  }
  100% {
    transform: translateY(0px);
  }
}

/* Custom scrollbar */
::-webkit-scrollbar {
  width: 10px;
}

::-webkit-scrollbar-track {
  background: var(--light-medium);
}

::-webkit-scrollbar-thumb {
  background: var(--primary-color);
  border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--primary-dark);
}