:root {
  /* Tetrad color scheme with glassmorphism effect */
  --primary-color: #3a86ff;
  --primary-dark: #1a66e0;
  --primary-light: #5a9cff;
  --secondary-color: #ff3366;
  --secondary-dark: #e01b4f;
  --secondary-light: #ff6089;
  --tertiary-color: #ffbe0b;
  --tertiary-dark: #e0a700;
  --tertiary-light: #ffd24d;
  --quaternary-color: #8338ec;
  --quaternary-dark: #6920c5;
  --quaternary-light: #9f5ffd;
  
  /* Neutral colors */
  --white: #ffffff;
  --light-gray: #f8f9fa;
  --medium-gray: #e9ecef;
  --gray: #6c757d;
  --dark-gray: #343a40;
  --black: #212529;
  
  /* Glassmorphism effect */
  --glass-background: rgba(255, 255, 255, 0.15);
  --glass-border: 1px solid rgba(255, 255, 255, 0.2);
  --glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.1);
  --glass-backdrop-filter: blur(8px);
  
  /* Text styles */
  --heading-font: 'Archivo Black', sans-serif;
  --body-font: 'Roboto', sans-serif;
  
  /* Border radius */
  --border-radius-sm: 6px;
  --border-radius-md: 12px;
  --border-radius-lg: 24px;
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-medium: 0.4s ease;
  --transition-slow: 0.8s ease;
  
  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 2rem;
  --space-lg: 4rem;
  --space-xl: 8rem;
}

/* Base styles */
* {
  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(--light-gray);
  overflow-x: hidden;
}

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

h1 {
  font-size: 3.5rem;
}

h2 {
  font-size: 2.5rem;
}

h3 {
  font-size: 1.75rem;
}

p {
  margin-bottom: var(--space-sm);
}

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

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

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

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-sm);
}

/* Section styles */
.section-title {
  text-align: center;
  margin-bottom: var(--space-md);
  position: relative;
  z-index: 1;
}

.section-title::after {
  content: "";
  display: block;
  width: 80px;
  height: 4px;
  background: var(--primary-color);
  margin: var(--space-xs) auto;
}

.section-subtitle {
  text-align: center;
  font-size: 1.2rem;
  color: var(--gray);
  margin-bottom: var(--space-lg);
}

/* Button styles */
.btn {
  display: inline-block;
  padding: 12px 28px;
  font-weight: 500;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
  border: none;
  border-radius: var(--border-radius-md);
  transition: all var(--transition-medium);
  font-family: var(--body-font);
  font-size: 1rem;
}

.btn-primary {
  background-color: var(--primary-color);
  color: var(--white);
  box-shadow: 0 4px 14px rgba(58, 134, 255, 0.4);
}

.btn-primary:hover {
  background-color: var(--primary-dark);
  box-shadow: 0 6px 20px rgba(58, 134, 255, 0.6);
  transform: translateY(-2px);
  color: var(--white);
}

.btn-secondary {
  background-color: var(--secondary-color);
  color: var(--white);
  box-shadow: 0 4px 14px rgba(255, 51, 102, 0.4);
}

.btn-secondary:hover {
  background-color: var(--secondary-dark);
  box-shadow: 0 6px 20px rgba(255, 51, 102, 0.6);
  transform: translateY(-2px);
  color: var(--white);
}

.btn-tertiary {
  background-color: var(--tertiary-color);
  color: var(--black);
  box-shadow: 0 4px 14px rgba(255, 190, 11, 0.4);
}

.btn-tertiary:hover {
  background-color: var(--tertiary-dark);
  box-shadow: 0 6px 20px rgba(255, 190, 11, 0.6);
  transform: translateY(-2px);
  color: var(--black);
}

.btn-link {
  color: var(--primary-color);
  text-decoration: none;
  display: inline-block;
  font-weight: 500;
  position: relative;
  padding-bottom: 2px;
}

.btn-link::after {
  content: "";
  position: absolute;
  width: 100%;
  height: 2px;
  bottom: 0;
  left: 0;
  background-color: var(--primary-color);
  transform: scaleX(0);
  transform-origin: bottom right;
  transition: transform var(--transition-medium);
}

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

.btn-link:hover::after {
  transform: scaleX(1);
  transform-origin: bottom left;
}

/* Card styles */
.card {
  background-color: var(--white);
  border-radius: var(--border-radius-md);
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
  transition: transform var(--transition-medium), box-shadow var(--transition-medium);
  display: flex;
  flex-direction: column;
  height: 100%;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
}

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

.card-image img {
  width: 100%;
  height: 250px;
  object-fit: cover;
  transition: transform var(--transition-medium);
}

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

.card-content {
  padding: var(--space-md);
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.card-content h3 {
  margin-top: 0;
  color: var(--black);
}

.card-content p {
  color: var(--gray);
  flex-grow: 1;
}

/* Header styles */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background-color: var(--glass-background);
  backdrop-filter: var(--glass-backdrop-filter);
  -webkit-backdrop-filter: var(--glass-backdrop-filter);
  border-bottom: var(--glass-border);
  box-shadow: var(--glass-shadow);
  transition: background-color var(--transition-medium);
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-sm) 0;
}

.logo {
  font-family: var(--heading-font);
  font-size: 1.8rem;
}

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

.main-nav .nav-list {
  display: flex;
  list-style: none;
  gap: var(--space-md);
}

.main-nav .nav-list a {
  color: var(--dark-gray);
  font-weight: 500;
  position: relative;
  padding-bottom: 5px;
}

.main-nav .nav-list a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--primary-color);
  transform: scaleX(0);
  transition: transform var(--transition-medium);
  transform-origin: right;
}

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

.main-nav .nav-list a:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

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

.burger-menu span {
  width: 100%;
  height: 2px;
  background-color: var(--dark-gray);
  transition: all var(--transition-fast);
}

/* Hero section */
.hero-section {
  position: relative;
  padding: 0;
  margin-top: 80px;
  overflow: hidden;
  height: calc(100vh - 80px);
  min-height: 600px;
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  z-index: -1;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(0, 0, 0, 0.7) 0%, rgba(0, 0, 0, 0.5) 100%);
  z-index: -1;
}

.hero-content {
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  color: var(--white);
  max-width: 800px;
  position: relative;
  z-index: 1;
}

.hero-title {
  font-size: 4rem;
  margin-bottom: var(--space-sm);
  color: var(--white);
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
  font-size: 1.5rem;
  margin-bottom: var(--space-md);
  color: var(--white);
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

.hero-cta {
  display: flex;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

.hero-stats {
  display: flex;
  gap: var(--space-lg);
  margin-top: var(--space-md);
}

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

.stat-number {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--white);
}

.stat-label {
  color: var(--light-gray);
  font-size: 1rem;
}

/* Features section */
.features-section {
  padding: var(--space-xl) 0;
  background-color: var(--white);
  position: relative;
  overflow: hidden;
}

.features-section::before {
  content: "";
  position: absolute;
  top: -100px;
  left: 0;
  width: 100%;
  height: 200px;
  background-color: var(--white);
  transform: skewY(-3deg);
  z-index: -1;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: var(--space-md);
}

.feature-card {
  transition: transform var(--transition-medium), box-shadow var(--transition-medium);
}

.feature-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

/* Portfolio section */
.portfolio-section {
  padding: var(--space-xl) 0;
  background-color: var(--light-gray);
  position: relative;
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(400px, 1fr));
  gap: var(--space-md);
}

.portfolio-card {
  background-color: var(--white);
  border-radius: var(--border-radius-md);
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
}

/* Research section */
.research-section {
  padding: var(--space-xl) 0;
  background-color: var(--white);
  position: relative;
}

.research-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: var(--space-md);
}

/* Workshops section */
.workshops-section {
  padding: var(--space-xl) 0;
  background-color: var(--light-gray);
  position: relative;
}

.workshops-timeline {
  position: relative;
  max-width: 1000px;
  margin: 0 auto;
}

.workshops-timeline::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 100%;
  background-color: var(--primary-light);
  border-radius: 4px;
}

.timeline-item {
  display: flex;
  justify-content: flex-end;
  padding-right: 30px;
  position: relative;
  margin-bottom: var(--space-lg);
  width: 50%;
  left: 0;
}

.timeline-item:nth-child(even) {
  justify-content: flex-start;
  padding-left: 30px;
  padding-right: 0;
  left: 50%;
}

.timeline-date {
  position: absolute;
  top: 0;
  right: -120px;
  background-color: var(--primary-color);
  color: var(--white);
  padding: 8px 16px;
  border-radius: var(--border-radius-sm);
  box-shadow: 0 4px 12px rgba(58, 134, 255, 0.3);
}

.timeline-item:nth-child(even) .timeline-date {
  right: auto;
  left: -120px;
}

.timeline-content {
  width: 100%;
  max-width: 450px;
}

/* Success stories section */
.success-stories-section {
  padding: var(--space-xl) 0;
  background-color: var(--white);
  position: relative;
  overflow: hidden;
}

.success-stories-slider {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(400px, 1fr));
  gap: var(--space-md);
}

.success-story .client-info {
  margin-top: var(--space-md);
  display: flex;
  flex-direction: column;
}

.client-name {
  font-weight: 700;
  color: var(--black);
}

.client-position {
  color: var(--gray);
  font-size: 0.9rem;
}

/* Sustainability section */
.sustainability-section {
  padding: var(--space-xl) 0;
  background-color: var(--light-gray);
  position: relative;
}

.sustainability-content {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  margin-bottom: var(--space-lg);
}

.sustainability-text {
  flex: 1;
}

.sustainability-image {
  flex: 1;
  border-radius: var(--border-radius-md);
  overflow: hidden;
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.sustainability-stats {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-md);
}

.stat-card {
  background-color: var(--white);
  border-radius: var(--border-radius-md);
  padding: var(--space-md);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.05);
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.stat-icon {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  overflow: hidden;
}

.stat-content h3 {
  color: var(--primary-color);
  margin-bottom: 5px;
}

/* Partners section */
.partners-section {
  padding: var(--space-xl) 0;
  background-color: var(--white);
  position: relative;
}

.partners-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: var(--space-md);
  text-align: center;
}

.partner-card {
  padding: var(--space-md);
  background-color: var(--light-gray);
  border-radius: var(--border-radius-md);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  transition: transform var(--transition-medium);
}

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

.partner-card img {
  max-height: 100px;
  width: auto;
  margin-bottom: var(--space-sm);
}

/* External resources */
.external-resources {
  padding: var(--space-xl) 0;
  background-color: var(--light-gray);
  position: relative;
}

.resources-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: var(--space-md);
}

.resource-card {
  background-color: var(--white);
  border-radius: var(--border-radius-md);
  padding: var(--space-md);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.05);
  display: flex;
  flex-direction: column;
  height: 100%;
}

.resource-card h3 {
  margin-bottom: var(--space-sm);
}

.resource-card p {
  margin-bottom: var(--space-md);
  flex-grow: 1;
}

.resource-link {
  align-self: flex-start;
  color: var(--primary-color);
  font-weight: 500;
  position: relative;
  padding-bottom: 2px;
  display: inline-block;
}

.resource-link::after {
  content: "";
  position: absolute;
  width: 100%;
  height: 2px;
  bottom: 0;
  left: 0;
  background-color: var(--primary-color);
  transform: scaleX(0);
  transform-origin: bottom right;
  transition: transform var(--transition-medium);
}

.resource-link:hover::after {
  transform: scaleX(1);
  transform-origin: bottom left;
}

/* Events section */
.events-section {
  padding: var(--space-xl) 0;
  background-color: var(--white);
  position: relative;
}

.events-timeline {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  max-width: 800px;
  margin: 0 auto;
}

.event-card {
  display: flex;
  background-color: var(--light-gray);
  border-radius: var(--border-radius-md);
  overflow: hidden;
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.05);
}

.event-date {
  background-color: var(--primary-color);
  color: var(--white);
  padding: var(--space-md);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-width: 120px;
  text-align: center;
}

.day {
  font-size: 2.5rem;
  font-weight: 700;
  line-height: 1;
}

.month {
  font-weight: 500;
}

.year {
  font-size: 0.8rem;
}

.event-content {
  padding: var(--space-md);
  flex-grow: 1;
}

.event-content h3 {
  margin-top: 0;
}

/* Team section */
.team-section {
  padding: var(--space-xl) 0;
  background-color: var(--light-gray);
  position: relative;
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-md);
}

.team-card {
  background-color: var(--white);
  border-radius: var(--border-radius-md);
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
}

.team-card .card-image img {
  height: 300px;
  object-fit: cover;
}

.member-position {
  color: var(--primary-color);
  font-weight: 500;
  margin-bottom: var(--space-sm);
}

/* Contact section */
.contact-section {
  padding: var(--space-xl) 0;
  background-color: var(--white);
  position: relative;
}

.contact-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.info-item h3 {
  margin-bottom: var(--space-sm);
}

.info-map {
  border-radius: var(--border-radius-md);
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  margin-top: var(--space-md);
}

.contact-form-container {
  background-color: var(--light-gray);
  border-radius: var(--border-radius-md);
  padding: var(--space-md);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.form-group {
  display: flex;
  flex-direction: column;
  margin-bottom: var(--space-sm);
}

.form-group label {
  margin-bottom: 5px;
  font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
  padding: 12px;
  border: 1px solid var(--medium-gray);
  border-radius: var(--border-radius-sm);
  font-family: var(--body-font);
  font-size: 1rem;
  transition: border-color var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(58, 134, 255, 0.1);
}

/* Footer */
.footer {
  background-color: var(--dark-gray);
  color: var(--light-gray);
  padding: var(--space-lg) 0 var(--space-sm);
}

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

.footer-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.footer-logo h2 {
  font-size: 2rem;
  color: var(--white);
  margin-bottom: 5px;
}

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

.footer-contact p {
  margin-bottom: 5px;
}

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

.links-column h3 {
  color: var(--white);
  font-size: 1.2rem;
  margin-bottom: var(--space-sm);
  position: relative;
}

.links-column h3::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -8px;
  width: 40px;
  height: 2px;
  background-color: var(--primary-color);
}

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

.links-column ul li {
  margin-bottom: 8px;
}

.links-column ul li a {
  color: var(--medium-gray);
  transition: color var(--transition-fast);
}

.links-column ul li a:hover {
  color: var(--primary-color);
}

.social-links li a {
  display: flex;
  align-items: center;
  gap: 8px;
}

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

/* Cookie popup */
.cookie-popup {
  position: fixed;
  bottom: 20px;
  left: 20px;
  background-color: var(--glass-background);
  backdrop-filter: var(--glass-backdrop-filter);
  -webkit-backdrop-filter: var(--glass-backdrop-filter);
  border: var(--glass-border);
  box-shadow: var(--glass-shadow);
  border-radius: var(--border-radius-md);
  padding: var(--space-md);
  max-width: 400px;
  z-index: 1000;
}

.cookie-content {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.cookie-content p {
  margin-bottom: var(--space-sm);
  color: var(--dark-gray);
}

.cookie-btn {
  background-color: var(--primary-color);
  color: var(--white);
  border: none;
  padding: 10px 20px;
  border-radius: var(--border-radius-sm);
  cursor: pointer;
  font-weight: 500;
  transition: background-color var(--transition-fast);
  align-self: flex-end;
}

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

/* Success page */
.success-page {
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  background-color: var(--light-gray);
  padding: var(--space-md);
}

.success-container {
  max-width: 600px;
  background-color: var(--white);
  border-radius: var(--border-radius-md);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  padding: var(--space-lg);
  text-align: center;
}

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

.success-title {
  font-size: 2.5rem;
  margin-bottom: var(--space-sm);
}

.success-message {
  margin-bottom: var(--space-md);
}

/* Privacy and Terms pages */
.privacy-page, .terms-page {
  padding-top: 100px;
}

.privacy-content, .terms-content {
  max-width: 800px;
  margin: 0 auto;
  padding: var(--space-lg);
  background-color: var(--white);
  border-radius: var(--border-radius-md);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
}

/* Media Queries */
@media (max-width: 1200px) {
  .container {
    padding: 0 var(--space-md);
  }
  
  .hero-title {
    font-size: 3.5rem;
  }
}

@media (max-width: 992px) {
  .hero-title {
    font-size: 3rem;
  }
  
  .hero-subtitle {
    font-size: 1.2rem;
  }
  
  .contact-content {
    grid-template-columns: 1fr;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }
  
  .footer-links {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .timeline-item,
  .timeline-item:nth-child(even) {
    width: 100%;
    left: 0;
    padding-left: 70px;
    padding-right: 0;
    justify-content: flex-start;
  }
  
  .workshops-timeline::before {
    left: 30px;
  }
  
  .timeline-date,
  .timeline-item:nth-child(even) .timeline-date {
    left: -45px;
    right: auto;
    top: 20px;
    transform: translateY(-50%);
    width: 100px;
    text-align: center;
  }
  
  .sustainability-content {
    flex-direction: column;
  }
}

@media (max-width: 768px) {
  h1 {
    font-size: 2.8rem;
  }
  
  h2 {
    font-size: 2rem;
  }
  
  .hero-title {
    font-size: 2.5rem;
  }
  
  .hero-subtitle {
    font-size: 1.1rem;
  }
  
  .hero-cta {
    flex-direction: column;
    align-items: flex-start;
  }
  
  .features-grid, 
  .portfolio-grid, 
  .research-grid, 
  .success-stories-slider,
  .team-grid {
    grid-template-columns: 1fr;
  }
  
  .burger-menu {
    display: flex;
  }
  
  .main-nav .nav-list {
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background-color: var(--white);
    flex-direction: column;
    align-items: center;
    padding: var(--space-md);
    gap: var(--space-sm);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-medium);
    z-index: -1;
  }
  
  .main-nav .nav-list.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
    z-index: 1;
  }
  
  .burger-menu.active span:nth-child(1) {
    transform: translateY(9px) rotate(45deg);
  }
  
  .burger-menu.active span:nth-child(2) {
    opacity: 0;
  }
  
  .burger-menu.active span:nth-child(3) {
    transform: translateY(-9px) rotate(-45deg);
  }
  
  .footer-links {
    grid-template-columns: 1fr;
  }
  
  .event-card {
    flex-direction: column;
  }
  
  .event-date {
    width: 100%;
    min-width: auto;
    flex-direction: row;
    justify-content: space-around;
    padding: var(--space-sm);
  }
  
  .day, .month, .year {
    margin: 0;
  }
}

@media (max-width: 576px) {
  .hero-title {
    font-size: 2rem;
  }
  
  .hero-subtitle {
    font-size: 1rem;
  }
  
  .stat-number {
    font-size: 2rem;
  }
  
  .hero-stats {
    flex-direction: column;
    gap: var(--space-sm);
  }
  
  .stat-item {
    flex-direction: row;
    justify-content: space-between;
    width: 100%;
  }
  
  .portfolio-grid {
    grid-template-columns: 1fr;
  }
  
  .resources-grid {
    grid-template-columns: 1fr;
  }
  
  .sustainability-stats {
    grid-template-columns: 1fr;
  }
  
  .partners-grid {
    grid-template-columns: 1fr;
  }
}