/* === VARIABLES === */
:root {
  /* Primary Colors - Eco-minimalist complementary scheme */
  --color-primary: #2E7D32; /* Deep green */
  --color-primary-light: #4CAF50; /* Lighter green */
  --color-primary-dark: #1B5E20; /* Darker green */
  
  /* Complementary Colors */
  --color-complementary: #9C27B0; /* Purple - complementary to green */
  --color-complementary-light: #BA68C8; /* Light purple */
  --color-complementary-dark: #7B1FA2; /* Dark purple */
  
  /* Neutral Colors */
  --color-white: #FFFFFF;
  --color-off-white: #F8F9FA;
  --color-light-gray: #E9ECEF;
  --color-gray: #6C757D;
  --color-dark-gray: #343A40;
  --color-black: #212529;
  
  /* Accent Colors */
  --color-accent-1: #FF9800; /* Orange */
  --color-accent-2: #03A9F4; /* Light Blue */
  --color-accent-success: #4CAF50; /* Success Green */
  --color-accent-warning: #FFC107; /* Warning Yellow */
  --color-accent-danger: #F44336; /* Danger Red */
  
  /* Typography */
  --font-heading: 'Manrope', sans-serif;
  --font-body: 'Rubik', sans-serif;
  
  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-xxl: 5rem;
  
  /* Border Radius */
  --border-radius-sm: 4px;
  --border-radius-md: 8px;
  --border-radius-lg: 16px;
  --border-radius-full: 9999px;
  
  /* Shadows */
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.15);
  
  /* Transitions */
  --transition-fast: 0.15s ease-in-out;
  --transition-normal: 0.3s ease-in-out;
  --transition-slow: 0.5s ease-in-out;
  
  /* Container */
  --container-max-width: 1200px;
  --container-padding: 1rem;
}

/* === RESET & GLOBAL STYLES === */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

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

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

ul {
  list-style: none;
}

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

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

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

h1 {
  font-size: 3rem;
  margin-bottom: var(--spacing-lg);
}

h2 {
  font-size: 2.5rem;
  text-align: center;
  margin-bottom: var(--spacing-xl);
  position: relative;
}

h2::after {
  content: '';
  display: block;
  width: 80px;
  height: 4px;
  background-color: var(--color-primary);
  margin: var(--spacing-md) auto 0;
  border-radius: var(--border-radius-full);
}

h3 {
  font-size: 1.75rem;
}

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

.section-description {
  text-align: center;
  max-width: 800px;
  margin: 0 auto var(--spacing-xl);
  font-size: 1.1rem;
  color: var(--color-gray);
}

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

section {
  padding: var(--spacing-xl) 0;
}

/* === BUTTONS === */
.btn {
  display: inline-block;
  padding: 0.8rem 1.8rem;
  font-family: var(--font-heading);
  font-weight: 600;
  text-align: center;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-radius: var(--border-radius-md);
  cursor: pointer;
  transition: all var(--transition-normal);
  border: none;
  font-size: 0.9rem;
  box-shadow: var(--shadow-sm);
}

.btn:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

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

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

.btn-secondary {
  background-color: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

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

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

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

.header.scrolled {
  background-color: var(--color-white);
  box-shadow: var(--shadow-md);
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0;
}

.logo a {
  display: block;
}

.nav-menu ul {
  display: flex;
  gap: var(--spacing-lg);
}

.nav-menu a {
  color: var(--color-dark-gray);
  font-weight: 500;
  font-size: 0.95rem;
  position: relative;
}

.nav-menu a::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-primary);
  transition: width var(--transition-normal);
}

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

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

.hamburger {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 30px;
  height: 21px;
  cursor: pointer;
}

.hamburger span {
  display: block;
  height: 3px;
  width: 100%;
  background-color: var(--color-dark-gray);
  border-radius: 3px;
  transition: all var(--transition-normal);
}

/* === HERO SECTION === */
.hero {
  height: 100vh;
  min-height: 600px;
  display: flex;
  align-items: center;
  position: relative;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  padding-top: 80px;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to right, rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.3));
  z-index: 1;
}

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

.hero-content h1, .hero-content p {
  color: var(--color-white);
  text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.5);
}

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

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

/* === VISION SECTION === */
.vision-section {
  background-color: var(--color-off-white);
  position: relative;
  overflow: hidden;
}

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

.vision-text {
  flex: 1;
}

.vision-image {
  flex: 1;
  text-align: center;
}

.vision-image img {
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-lg);
  margin: 0 auto;
  object-fit: cover;
}

/* === SERVICES SECTION === */
.services-section {
  background-color: var(--color-white);
  position: relative;
}

.services-carousel {
  display: flex;
  gap: var(--spacing-lg);
  overflow-x: hidden;
  padding: var(--spacing-md) 0;
}

.service-card {
  background-color: var(--color-white);
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  transition: transform var(--transition-normal);
  flex: 0 0 calc(33.333% - var(--spacing-lg));
  display: flex;
  flex-direction: column;
  align-items: center;
}

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

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

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

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

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

.carousel-controls {
  display: flex;
  justify-content: center;
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.carousel-controls button {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: var(--color-white);
  border: 2px solid var(--color-primary);
  color: var(--color-primary);
  font-size: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-normal);
}

.carousel-controls button:hover {
  background-color: var(--color-primary);
  color: var(--color-white);
}

/* === BLOG SECTION === */
.blog-section {
  background-color: var(--color-off-white);
}

.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-lg);
}

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

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

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

.blog-card .date {
  display: block;
  font-size: 0.85rem;
  color: var(--color-gray);
  margin-bottom: var(--spacing-sm);
}

.blog-card h3 {
  font-size: 1.4rem;
  margin-bottom: var(--spacing-md);
}

.read-more {
  display: inline-block;
  margin-top: var(--spacing-md);
  color: var(--color-primary);
  font-weight: 600;
  position: relative;
  padding-right: 20px;
}

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

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

/* === RESEARCH SECTION === */
.research-section {
  background-color: var(--color-white);
}

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

.research-text {
  flex: 3;
}

.research-image {
  flex: 2;
  text-align: center;
}

.research-image img {
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-lg);
  margin: 0 auto;
  object-fit: cover;
}

.accordion {
  margin-top: var(--spacing-lg);
}

.accordion-item {
  border: 1px solid var(--color-light-gray);
  border-radius: var(--border-radius-md);
  margin-bottom: var(--spacing-md);
  overflow: hidden;
}

.accordion-header {
  padding: var(--spacing-md);
  background-color: var(--color-off-white);
  font-family: var(--font-heading);
  font-weight: 600;
  cursor: pointer;
  position: relative;
  padding-right: 40px;
  transition: background-color var(--transition-normal);
}

.accordion-header::after {
  content: '+';
  position: absolute;
  right: 15px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.5rem;
  transition: transform var(--transition-normal);
}

.accordion-item.active .accordion-header {
  background-color: var(--color-primary-light);
  color: var(--color-white);
}

.accordion-item.active .accordion-header::after {
  content: '−';
}

.accordion-content {
  padding: 0;
  max-height: 0;
  overflow: hidden;
  transition: all var(--transition-normal);
}

.accordion-content p {
  padding: var(--spacing-md);
  margin: 0;
}

.accordion-item.active .accordion-content {
  max-height: 300px;
}

/* === RESOURCES SECTION === */
.resources-section {
  background-color: var(--color-off-white);
  position: relative;
}

.resources-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-lg);
}

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

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

.resource-link {
  display: inline-block;
  margin-top: var(--spacing-md);
  padding: 8px 16px;
  background-color: var(--color-primary);
  color: var(--color-white);
  border-radius: var(--border-radius-sm);
  transition: background-color var(--transition-normal);
}

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

/* === SUSTAINABILITY SECTION === */
.sustainability-section {
  background-color: var(--color-white);
  position: relative;
  overflow: hidden;
}

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

.sustainability-text {
  flex: 1;
}

.sustainability-image {
  flex: 1;
  text-align: center;
}

.sustainability-image img {
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-lg);
  margin: 0 auto;
  object-fit: cover;
}

.sustainability-stats {
  display: flex;
  justify-content: space-between;
  gap: var(--spacing-lg);
  text-align: center;
}

.stat-item {
  flex: 1;
  padding: var(--spacing-lg);
  background-color: var(--color-off-white);
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-normal);
}

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

.stat-number {
  display: block;
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--spacing-sm);
}

/* === PRICING SECTION === */
.pricing-section {
  background-color: var(--color-off-white);
  position: relative;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

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

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

.pricing-card.featured {
  transform: scale(1.05);
  box-shadow: var(--shadow-lg);
  border: 2px solid var(--color-primary);
}

.pricing-card.featured:hover {
  transform: scale(1.05) translateY(-10px);
}

.pricing-card .card-header {
  width: 100%;
  padding: var(--spacing-lg);
  background-color: var(--color-primary);
  color: var(--color-white);
  text-align: center;
}

.pricing-card .price {
  font-size: 2.5rem;
  font-weight: 700;
  margin-top: var(--spacing-md);
}

.pricing-card .price span {
  font-size: 1rem;
  font-weight: 400;
}

.pricing-card .card-content {
  padding: var(--spacing-lg);
  flex-grow: 1;
  width: 100%;
}

.pricing-card ul {
  margin-bottom: var(--spacing-lg);
  text-align: left;
}

.pricing-card li {
  margin-bottom: var(--spacing-sm);
  position: relative;
  padding-left: 25px;
}

.pricing-card li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--color-primary);
  font-weight: 700;
}

.custom-solutions {
  text-align: center;
  font-size: 1.1rem;
  font-weight: 500;
}

/* === AWARDS SECTION === */
.awards-section {
  background-color: var(--color-white);
}

.awards-text {
  text-align: center;
  max-width: 800px;
  margin: 0 auto var(--spacing-xl);
}

.awards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-lg);
}

.award-card {
  text-align: center;
  padding: var(--spacing-lg);
  background-color: var(--color-off-white);
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-normal);
  display: flex;
  flex-direction: column;
  align-items: center;
}

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

.award-card img {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  margin: 0 auto var(--spacing-md);
  object-fit: cover;
}

/* === HISTORY SECTION === */
.history-section {
  background-color: var(--color-off-white);
  position: relative;
}

.timeline {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
}

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

.timeline-item {
  display: flex;
  justify-content: flex-start;
  padding-bottom: var(--spacing-xl);
  position: relative;
}

.timeline-item:nth-child(even) {
  justify-content: flex-end;
}

.timeline-item .year {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--color-primary);
  color: var(--color-white);
  font-weight: 700;
  padding: 0.5rem 1rem;
  border-radius: var(--border-radius-full);
  z-index: 2;
}

.timeline-item .content {
  width: 45%;
  background-color: var(--color-white);
  padding: var(--spacing-lg);
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-md);
  position: relative;
}

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

.timeline-item:nth-child(even) .content::after {
  content: '';
  position: absolute;
  top: 20px;
  left: -10px;
  width: 20px;
  height: 20px;
  background-color: var(--color-white);
  transform: rotate(45deg);
}

/* === CAREERS SECTION === */
.careers-section {
  background-color: var(--color-white);
}

.careers-content {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xl);
}

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

.careers-opportunities {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-lg);
}

.job-card {
  background-color: var(--color-off-white);
  padding: var(--spacing-lg);
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-normal);
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

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

.job-card h3 {
  margin-bottom: var(--spacing-md);
}

.job-card p {
  margin-bottom: var(--spacing-lg);
  flex-grow: 1;
}

/* === CONTACT SECTION === */
.contact-section {
  background-color: var(--color-off-white);
  position: relative;
}

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

.contact-form-container {
  flex: 1;
}

.contact-intro {
  margin-bottom: var(--spacing-lg);
}

.contact-form {
  background-color: var(--color-white);
  padding: var(--spacing-lg);
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-md);
}

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

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

.form-group input, 
.form-group select, 
.form-group textarea {
  width: 100%;
  padding: 0.8rem;
  border: 1px solid var(--color-light-gray);
  border-radius: var(--border-radius-sm);
  font-family: var(--font-body);
  transition: border-color var(--transition-normal);
}

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

.toggle-container {
  display: flex;
  align-items: center;
}

.toggle-input {
  margin-right: var(--spacing-sm);
}

.contact-info {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

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

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

.info-icon {
  width: 60px;
  height: 60px;
  margin-bottom: var(--spacing-md);
}

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

.map-container img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

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

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

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

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

.footer-links {
  flex: 2;
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xl);
}

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

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

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

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

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

.footer-bottom {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-md);
  text-align: center;
  padding-top: var(--spacing-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

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

.social-links a {
  color: var(--color-light-gray);
  padding: 0.5rem;
  transition: color var(--transition-normal);
}

.social-links a:hover {
  color: var(--color-white);
}

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

/* === SUCCESS PAGE === */
.success-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background-color: var(--color-off-white);
  text-align: center;
}

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

.success-content h1 {
  color: var(--color-primary);
}

.success-content .icon {
  font-size: 5rem;
  color: var(--color-primary);
  margin-bottom: var(--spacing-lg);
}

/* === PRIVACY & TERMS PAGES === */
.page-content {
  padding-top: 100px;
  min-height: calc(100vh - 300px);
}

.page-content .container {
  background-color: var(--color-white);
  padding: var(--spacing-xl);
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-md);
}

.page-content h1 {
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.page-content h2 {
  text-align: left;
  margin-top: var(--spacing-xl);
  margin-bottom: var(--spacing-md);
}

.page-content h2::after {
  margin-left: 0;
}

/* === ANIMATIONS === */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInLeft {
  from {
    opacity: 0;
    transform: translateX(-20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes fadeInRight {
  from {
    opacity: 0;
    transform: translateX(20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes float {
  0% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
  100% {
    transform: translateY(0);
  }
}

@keyframes pulse {
  0% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
  100% {
    transform: scale(1);
  }
}

.animate-fadeIn {
  animation: fadeIn 1s ease-out forwards;
}

.animate-fadeInLeft {
  animation: fadeInLeft 1s ease-out forwards;
}

.animate-fadeInRight {
  animation: fadeInRight 1s ease-out forwards;
}

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

.animate-pulse {
  animation: pulse 2s ease-in-out infinite;
}

/* Particle animation */
.particles-background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
}

.particle {
  position: absolute;
  background-color: rgba(76, 175, 80, 0.2);
  border-radius: 50%;
  pointer-events: none;
}

/* === RESPONSIVE STYLES === */
@media (max-width: 1200px) {
  .container {
    padding: 0 var(--spacing-lg);
  }
}

@media (max-width: 992px) {
  html {
    font-size: 15px;
  }
  
  .vision-content, 
  .sustainability-content, 
  .research-content,
  .contact-content {
    flex-direction: column;
  }
  
  .research-image, 
  .vision-image, 
  .sustainability-image {
    margin-top: var(--spacing-lg);
  }
  
  .blog-grid, 
  .resources-grid, 
  .pricing-grid, 
  .awards-grid, 
  .careers-opportunities {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  html {
    font-size: 14px;
  }
  
  h1 {
    font-size: 2.5rem;
  }
  
  h2 {
    font-size: 2rem;
  }
  
  .nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 250px;
    height: 100vh;
    background-color: var(--color-white);
    box-shadow: var(--shadow-lg);
    padding: 80px var(--spacing-lg) var(--spacing-lg);
    transition: right var(--transition-normal);
    z-index: 999;
  }
  
  .nav-menu.active {
    right: 0;
  }
  
  .nav-menu ul {
    flex-direction: column;
    gap: var(--spacing-md);
  }
  
  .hamburger {
    display: flex;
    z-index: 1000;
  }
  
  .hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }
  
  .hamburger.active span:nth-child(2) {
    opacity: 0;
  }
  
  .hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
  }
  
  .hero-buttons {
    flex-direction: column;
    gap: var(--spacing-md);
  }
  
  .timeline::before {
    left: 30px;
  }
  
  .timeline-item {
    justify-content: flex-start;
    padding-left: 80px;
  }
  
  .timeline-item:nth-child(even) {
    justify-content: flex-start;
  }
  
  .timeline-item .year {
    left: 30px;
  }
  
  .timeline-item .content {
    width: 100%;
  }
  
  .timeline-item:nth-child(odd) .content::after,
  .timeline-item:nth-child(even) .content::after {
    display: none;
  }
  
  .blog-grid, 
  .resources-grid, 
  .pricing-grid, 
  .awards-grid, 
  .careers-opportunities {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }
  
  .pricing-card.featured {
    transform: scale(1);
  }
  
  .pricing-card.featured:hover {
    transform: translateY(-10px);
  }
  
  .footer-content {
    flex-direction: column;
    gap: var(--spacing-lg);
  }
  
  .footer-links {
    flex-direction: column;
    gap: var(--spacing-lg);
  }
  
  .sustainability-stats {
    flex-direction: column;
  }
}

@media (max-width: 576px) {
  .container {
    padding: 0 var(--spacing-md);
  }
  
  section {
    padding: var(--spacing-lg) 0;
  }
  
  h1 {
    font-size: 2rem;
  }
  
  h2 {
    font-size: 1.8rem;
  }
  
  .hero {
    min-height: 500px;
  }
  
  .services-carousel {
    padding: 0;
  }
  
  .service-card {
    flex: 0 0 100%;
  }
}