:root {
  /* Цветовая схема (раздельно-дополнительная) */
  --primary-color: #ff3d00; /* Основной цвет - яркий оранжево-красный */
  --primary-dark: #c30000; /* Темный вариант основного */
  --secondary-color: #00b8d4; /* Дополнительный - голубой */
  --secondary-dark: #0088a3; /* Темный вариант дополнительного */
  --accent-color: #76ff03; /* Акцентный - кислотно-зеленый */
  --accent-dark: #32cb00; /* Темный вариант акцентного */
  
  /* Нейтральные цвета */
  --black: #121212;
  --dark-gray: #333333;
  --medium-gray: #666666;
  --light-gray: #e0e0e0;
  --off-white: #f5f5f5;
  --white: #ffffff;
  
  /* Шрифты */
  --heading-font: 'Inter', sans-serif;
  --body-font: 'IBM Plex Sans', sans-serif;
  
  /* Размеры */
  --container-width: 1200px;
  --gap-small: 8px;
  --gap-medium: 16px;
  --gap-large: 32px;
  --gap-xl: 64px;
  
  /* Тени */
  --shadow-small: 4px 4px 0 rgba(0,0,0,0.8);
  --shadow-medium: 8px 8px 0 rgba(0,0,0,0.8);
  --shadow-large: 12px 12px 0 rgba(0,0,0,0.8);
  
  /* Переходы */
  --transition-fast: 0.2s ease;
  --transition-medium: 0.3s ease;
  --transition-slow: 0.5s ease;
  
  /* Границы */
  --border-thin: 2px solid var(--black);
  --border-medium: 4px solid var(--black);
  --border-thick: 6px solid var(--black);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--body-font);
  font-size: 16px;
  line-height: 1.6;
  color: var(--dark-gray);
  background-color: var(--off-white);
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--heading-font);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin-bottom: var(--gap-medium);
  color: var(--black);
}

h1 {
  font-size: 4rem;
}

h2 {
  font-size: 3rem;
}

h3 {
  font-size: 2rem;
}

h4 {
  font-size: 1.5rem;
}

p {
  margin-bottom: var(--gap-medium);
}

a {
  color: var(--primary-color);
  text-decoration: none;
  transition: all var(--transition-fast);
  font-weight: 500;
}

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

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

.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--gap-medium);
}

.section-title {
  text-align: center;
  margin-bottom: var(--gap-xl);
  position: relative;
  font-size: 3.5rem;
  color: var(--black);
  text-shadow: 2px 2px 0 var(--primary-color);
}

.section-title::after {
  content: '';
  display: block;
  width: 100px;
  height: 8px;
  background-color: var(--accent-color);
  margin: var(--gap-medium) auto 0;
  box-shadow: var(--shadow-small);
}

.section-description {
  text-align: center;
  max-width: 800px;
  margin: 0 auto var(--gap-xl);
  font-size: 1.2rem;
  color: var(--medium-gray);
}

/* Брутализм и гиперреалистичные текстуры */
.brutalism {
  box-shadow: var(--shadow-medium);
  border: var(--border-medium);
  transition: transform var(--transition-medium);
}

.brutalism:hover {
  transform: translate(-4px, -4px);
  box-shadow: var(--shadow-large);
}

.texture {
  position: relative;
}

.texture::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: url('image/paper-texture.jpg');
  background-size: cover;
  background-repeat: no-repeat;
  opacity: 0.05;
  mix-blend-mode: multiply;
  pointer-events: none;
}

/* Кнопки */
.btn,
button,
input[type="submit"] {
  display: inline-block;
  padding: 12px 24px;
  background-color: var(--primary-color);
  color: var(--white);
  font-family: var(--heading-font);
  font-weight: 700;
  text-transform: uppercase;
  border: var(--border-thin);
  box-shadow: var(--shadow-small);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-align: center;
  font-size: 1rem;
  letter-spacing: 1px;
  position: relative;
  overflow: hidden;
}

.btn:hover,
button:hover,
input[type="submit"]:hover {
  transform: translate(-4px, -4px);
  box-shadow: var(--shadow-medium);
  text-decoration: none;
}

.btn:active,
button:active,
input[type="submit"]:active {
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-small);
}

.btn::before,
button::before,
input[type="submit"]::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: rgba(255, 255, 255, 0.2);
  transition: all 0.3s ease;
}

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

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

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

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

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background-color: var(--black);
  padding: var(--gap-medium) 0;
  border-bottom: var(--border-thin);
}

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

.logo {
  font-family: var(--heading-font);
  font-weight: 900;
  font-size: 2rem;
  text-transform: uppercase;
}

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

.logo span {
  color: var(--primary-color);
}

.nav-desktop ul {
  display: flex;
  list-style: none;
  gap: var(--gap-medium);
}

.nav-desktop a {
  color: var(--white);
  text-decoration: none;
  font-weight: 600;
  text-transform: uppercase;
  transition: color var(--transition-fast);
  font-size: 1rem;
  letter-spacing: 1px;
  padding: 8px 0;
  position: relative;
}

.nav-desktop a::after {
  content: '';
  position: absolute;
  width: 0;
  height: 3px;
  bottom: 0;
  left: 0;
  background-color: var(--primary-color);
  transition: width var(--transition-medium);
}

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

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

.burger-menu {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 30px;
  height: 20px;
  cursor: pointer;
  z-index: 1001;
}

.burger-menu span {
  width: 100%;
  height: 3px;
  background-color: var(--white);
  transition: all var(--transition-medium);
}

.burger-menu.active span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.burger-menu.active span:nth-child(2) {
  opacity: 0;
}

.burger-menu.active span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

.nav-mobile {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background-color: var(--black);
  z-index: 1000;
  padding-top: 80px;
  transform: translateX(100%);
  transition: transform var(--transition-medium);
}

.nav-mobile.active {
  transform: translateX(0);
}

.nav-mobile ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--gap-large);
}

.nav-mobile a {
  color: var(--white);
  font-size: 1.5rem;
  text-transform: uppercase;
  font-weight: 700;
  text-decoration: none;
}

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

/* Hero Section */
.hero {
  position: relative;
  height: 100vh;
  min-height: 600px;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  display: flex;
  align-items: center;
  color: var(--white);
  overflow: hidden;
}

.hero .overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to right, rgba(0,0,0,0.8), rgba(0,0,0,0.4));
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
}

.hero h1 {
  font-size: 4.5rem;
  margin-bottom: var(--gap-medium);
  color: var(--white);
  text-shadow: 4px 4px 0 var(--primary-color);
  animation: fadeInUp 1s ease-out;
}

.hero h2 {
  font-size: 2rem;
  margin-bottom: var(--gap-large);
  color: var(--white);
  font-weight: 600;
  animation: fadeInUp 1s ease-out 0.2s;
  animation-fill-mode: both;
}

.hero p {
  font-size: 1.2rem;
  margin-bottom: var(--gap-large);
  max-width: 600px;
  color: var(--white);
  animation: fadeInUp 1s ease-out 0.4s;
  animation-fill-mode: both;
}

.hero-buttons {
  display: flex;
  gap: var(--gap-medium);
  animation: fadeInUp 1s ease-out 0.6s;
  animation-fill-mode: both;
}

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

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

.feature-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  background-color: var(--off-white);
  border: var(--border-medium);
  box-shadow: var(--shadow-medium);
  transition: transform var(--transition-medium);
  overflow: hidden;
}

.feature-card:hover {
  transform: translate(-8px, -8px);
  box-shadow: var(--shadow-large);
}

.feature-card .image-container {
  width: 100%;
  height: 300px;
  overflow: hidden;
  position: relative;
}

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

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

.card-content {
  padding: var(--gap-large);
  width: 100%;
}

.feature-card h3 {
  font-size: 1.8rem;
  margin-bottom: var(--gap-medium);
  color: var(--black);
}

.feature-card p {
  margin-bottom: var(--gap-large);
  color: var(--medium-gray);
}

/* Кастомные UI компоненты */
.custom-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--gap-medium);
  margin-top: var(--gap-medium);
}

.switch {
  position: relative;
  display: inline-block;
  width: 60px;
  height: 30px;
}

.switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--light-gray);
  transition: var(--transition-medium);
  border: var(--border-thin);
}

.slider:before {
  position: absolute;
  content: "";
  height: 22px;
  width: 22px;
  left: 4px;
  bottom: 3px;
  background-color: var(--white);
  transition: var(--transition-medium);
  border: 1px solid var(--black);
}

input:checked + .slider {
  background-color: var(--primary-color);
}

input:checked + .slider:before {
  transform: translateX(26px);
}

.custom-slider {
  margin-top: var(--gap-medium);
}

.range-slider {
  width: 100%;
  height: 12px;
  -webkit-appearance: none;
  appearance: none;
  background: var(--light-gray);
  outline: none;
  border: var(--border-thin);
  box-shadow: var(--shadow-small);
}

.range-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 25px;
  height: 25px;
  background: var(--primary-color);
  cursor: pointer;
  border: var(--border-thin);
  border-radius: 0;
}

.slider-labels {
  display: flex;
  justify-content: space-between;
  margin-top: var(--gap-small);
}

.info-cards {
  display: flex;
  gap: var(--gap-small);
  flex-wrap: wrap;
  margin-top: var(--gap-medium);
}

.info-card {
  padding: 8px 16px;
  background-color: var(--secondary-color);
  color: var(--white);
  font-weight: 600;
  border: var(--border-thin);
  box-shadow: var(--shadow-small);
  transition: transform var(--transition-fast);
}

.info-card:hover {
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-medium);
}

.picture-cards {
  display: flex;
  gap: var(--gap-medium);
  margin-top: var(--gap-medium);
}

.picture-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--gap-small);
}

.picture-card img {
  width: 100px;
  height: 80px;
  object-fit: cover;
  border: var(--border-thin);
  box-shadow: var(--shadow-small);
  transition: transform var(--transition-fast);
}

.picture-card:hover img {
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-medium);
}

.picture-card span {
  font-weight: 600;
}

/* Projects Section */
.projects {
  padding: var(--gap-xl) 0;
  background-color: var(--off-white);
}

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

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

.project-card:hover {
  transform: translate(-8px, -8px);
  box-shadow: var(--shadow-large);
}

.project-card .image-container {
  width: 100%;
  height: 300px;
  overflow: hidden;
  position: relative;
}

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

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

.project-card h3 {
  font-size: 1.5rem;
  margin-bottom: var(--gap-small);
  color: var(--black);
}

.project-card p {
  margin-bottom: var(--gap-medium);
  color: var(--medium-gray);
}

.project-card .btn {
  margin-top: auto;
}

/* Recursos Section */
.recursos {
  padding: var(--gap-xl) 0;
  background-color: var(--black);
  color: var(--white);
}

.recursos .section-title,
.recursos .section-description {
  color: var(--white);
}

.recursos-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--gap-large);
}

.recurso-card {
  background-color: var(--dark-gray);
  padding: var(--gap-large);
  border: var(--border-medium);
  border-color: var(--accent-color);
  box-shadow: var(--shadow-medium);
  transition: transform var(--transition-medium);
}

.recurso-card:hover {
  transform: translate(-4px, -4px);
  box-shadow: var(--shadow-large);
}

.recurso-card h3 {
  color: var(--accent-color);
  margin-bottom: var(--gap-medium);
  text-align: center;
}

.recurso-card ul {
  list-style: none;
}

.recurso-card li {
  margin-bottom: var(--gap-small);
}

.recurso-card a {
  color: var(--secondary-color);
  font-weight: 600;
  transition: color var(--transition-fast);
}

.recurso-card a:hover {
  color: var(--accent-color);
  text-decoration: underline;
}

/* Webinars Section */
.webinars {
  padding: var(--gap-xl) 0;
  background-color: var(--white);
}

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

.webinar-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  background-color: var(--off-white);
  border: var(--border-medium);
  box-shadow: var(--shadow-medium);
  transition: transform var(--transition-medium);
  overflow: hidden;
}

.webinar-card:hover {
  transform: translate(-8px, -8px);
  box-shadow: var(--shadow-large);
}

.webinar-card .image-container {
  width: 100%;
  height: 250px;
  overflow: hidden;
  position: relative;
}

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

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

.webinar-date {
  position: absolute;
  top: 20px;
  right: 20px;
  background-color: var(--primary-color);
  color: var(--white);
  padding: 10px;
  border: var(--border-thin);
  box-shadow: var(--shadow-small);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-width: 60px;
  z-index: 1;
}

.webinar-date span:first-child {
  font-size: 1.5rem;
  font-weight: 800;
  line-height: 1;
}

.webinar-date span:last-child {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
}

.webinar-card h3 {
  font-size: 1.5rem;
  margin-bottom: var(--gap-small);
  color: var(--black);
}

.webinar-card p {
  margin-bottom: var(--gap-medium);
  color: var(--medium-gray);
}

.webinar-card .btn {
  margin-top: auto;
}

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

.sustainability .overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to right, rgba(0,0,0,0.8), rgba(0,0,0,0.6));
}

.sustainability-content {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--gap-xl);
  align-items: center;
}

.sustainability .section-title {
  color: var(--white);
  position: relative;
  z-index: 1;
}

.sustainability-text p {
  font-size: 1.1rem;
  margin-bottom: var(--gap-medium);
}

.sustainability-stats {
  display: flex;
  gap: var(--gap-large);
  margin-top: var(--gap-large);
}

.stat {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.stat .number {
  font-size: 3rem;
  font-weight: 800;
  color: var(--accent-color);
  text-shadow: 2px 2px 0 var(--black);
}

.stat .label {
  font-size: 1rem;
  font-weight: 600;
  text-transform: uppercase;
}

.sustainability-image {
  width: 100%;
  height: 400px;
  overflow: hidden;
  border: var(--border-medium);
  box-shadow: var(--shadow-large);
}

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

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

.contact-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--gap-xl);
}

.contact-info h3 {
  font-size: 2rem;
  margin-bottom: var(--gap-medium);
}

.contact-info p {
  margin-bottom: var(--gap-large);
}

.contact-details {
  margin-bottom: var(--gap-large);
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--gap-medium);
  margin-bottom: var(--gap-medium);
}

.contact-item i {
  font-size: 1.5rem;
  color: var(--primary-color);
}

.social-links {
  display: flex;
  gap: var(--gap-medium);
}

.social-link {
  color: var(--primary-color);
  font-weight: 600;
  transition: color var(--transition-fast);
}

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

.contact-form {
  background-color: var(--off-white);
  padding: var(--gap-large);
  border: var(--border-medium);
  box-shadow: var(--shadow-medium);
}

.form-group {
  margin-bottom: var(--gap-medium);
}

.form-group label {
  display: block;
  margin-bottom: var(--gap-small);
  font-weight: 600;
  text-transform: uppercase;
  font-size: 0.9rem;
  color: var(--black);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px;
  border: var(--border-thin);
  background-color: var(--white);
  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);
  box-shadow: 0 0 0 2px rgba(255, 61, 0, 0.2);
}

.form-group.checkbox {
  display: flex;
  align-items: flex-start;
  gap: var(--gap-small);
}

.form-group.checkbox input {
  width: auto;
  margin-top: 4px;
}

/* Footer */
.footer {
  background-color: var(--black);
  color: var(--white);
  padding-top: var(--gap-xl);
}

.footer-content {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: var(--gap-xl);
  margin-bottom: var(--gap-xl);
}

.footer-logo a {
  font-family: var(--heading-font);
  font-weight: 900;
  font-size: 2rem;
  text-transform: uppercase;
  color: var(--white);
  text-decoration: none;
}

.footer-logo span {
  color: var(--primary-color);
}

.footer-logo p {
  margin-top: var(--gap-medium);
  color: var(--light-gray);
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--gap-large);
}

.footer-column h4 {
  color: var(--white);
  margin-bottom: var(--gap-medium);
  font-size: 1.2rem;
}

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

.footer-column li {
  margin-bottom: var(--gap-small);
}

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

.footer-column a:hover {
  color: var(--primary-color);
}

.footer-column .social-links {
  display: flex;
  flex-direction: column;
  gap: var(--gap-small);
}

.footer-bottom {
  border-top: 1px solid var(--medium-gray);
  padding: var(--gap-medium) 0;
  text-align: center;
  color: var(--light-gray);
}

/* Cookie Consent */
.cookie-consent {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background-color: rgba(0, 0, 0, 0.9);
  padding: var(--gap-medium);
  z-index: 9999;
  border-top: var(--border-thin);
}

.cookie-content {
  max-width: var(--container-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--gap-medium);
}

.cookie-content p {
  color: var(--white);
  margin: 0;
}

.btn-cookie {
  background-color: var(--accent-color);
  color: var(--black);
  border: none;
  padding: 8px 16px;
  font-weight: 600;
  cursor: pointer;
  box-shadow: var(--shadow-small);
  transition: all var(--transition-fast);
}

.btn-cookie:hover {
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-medium);
}

/* Success page */
.success-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--gap-xl) 0;
}

.success-content {
  max-width: 600px;
  padding: var(--gap-xl);
  background-color: var(--white);
  border: var(--border-medium);
  box-shadow: var(--shadow-large);
}

.success-content h1 {
  color: var(--primary-color);
  margin-bottom: var(--gap-large);
}

.success-content p {
  margin-bottom: var(--gap-large);
  font-size: 1.2rem;
}

/* Page Content */
.page-content {
  padding-top: 100px;
  padding-bottom: var(--gap-xl);
}

.page-content .container {
  max-width: 800px;
}

.page-title {
  margin-bottom: var(--gap-xl);
  text-align: center;
}

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

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

/* Анимация частиц */
.particles {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  z-index: 0;
}

.particle {
  position: absolute;
  width: 6px;
  height: 6px;
  background-color: var(--primary-color);
  border-radius: 50%;
  animation: float 15s linear infinite;
}

.particle:nth-child(2n) {
  background-color: var(--secondary-color);
  animation-duration: 20s;
}

.particle:nth-child(3n) {
  background-color: var(--accent-color);
  animation-duration: 25s;
}

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

/* Медиа-запросы для адаптивности */
@media (max-width: 1200px) {
  .hero h1 {
    font-size: 3.5rem;
  }
  
  .hero h2 {
    font-size: 1.8rem;
  }
  
  .section-title {
    font-size: 3rem;
  }
  
  .sustainability-content {
    grid-template-columns: 1fr;
    gap: var(--gap-large);
  }
  
  .sustainability-image {
    margin: 0 auto;
    max-width: 500px;
  }
  
  .contact-container {
    grid-template-columns: 1fr;
    gap: var(--gap-large);
  }
}

@media (max-width: 992px) {
  .nav-desktop {
    display: none;
  }
  
  .burger-menu {
    display: flex;
  }
  
  .hero h1 {
    font-size: 3rem;
  }
  
  .hero h2 {
    font-size: 1.5rem;
  }
  
  .section-title {
    font-size: 2.5rem;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    gap: var(--gap-large);
  }
  
  .footer-links {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .hero h1 {
    font-size: 2.5rem;
  }
  
  .hero h2 {
    font-size: 1.3rem;
  }
  
  .section-title {
    font-size: 2rem;
  }
  
  .hero-buttons {
    flex-direction: column;
    width: 100%;
  }
  
  .hero-buttons .btn {
    width: 100%;
  }
  
  .features-grid,
  .projects-grid,
  .webinars-grid {
    grid-template-columns: 1fr;
  }
  
  .recursos-grid {
    grid-template-columns: 1fr;
  }
  
  .sustainability-stats {
    flex-direction: column;
    align-items: center;
    gap: var(--gap-medium);
  }
  
  .cookie-content {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 576px) {
  .hero h1 {
    font-size: 2rem;
  }
  
  .hero p {
    font-size: 1rem;
  }
  
  .section-title {
    font-size: 1.8rem;
  }
  
  .footer-links {
    grid-template-columns: 1fr;
  }
}