:root {
  --primary-color: #181e4b;
  --secondary-color: #ffb703;
  --text-color: #333;
  --light-bg: #f5f5f5;
  --white: #ffffff;
}

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

body {
  font-family: "Segoe UI", -apple-system, BlinkMacSystemFont, sans-serif;
  line-height: 1.6;
  color: var(--text-color);
}

/* Header and Navigation */
header {
  background-color: var(--white);
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
  position: fixed;
  width: 100%;
  top: 0;
  z-index: 1000;
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.5rem 5%;
  height: 70px;
  background: var(--white);
}

.logo {
  font-size: 1.5rem;
  font-weight: bold;
  color: var(--primary-color);
  display: flex;
  align-items: center;
}

.logo-img {
  height: 50px;
  width: auto;
  max-width: 200px;
  object-fit: contain;
  margin-right: 10px;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.nav-links a {
  text-decoration: none;
  color: var(--text-color);
  font-weight: 500;
  transition: color 0.3s ease;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--secondary-color);
}

/* Hero Section */
.hero {
  background: linear-gradient(rgba(24, 30, 75, 0.9), rgba(24, 30, 75, 0.9)),
    url("../assets/images/ai-background.jpg");
  background-size: cover;
  background-position: center;
  height: 80vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: var(--white);
  margin-top: 60px;
}

.hero-content {
  max-width: 800px;
  padding: 0 2rem;
}

.hero h1 {
  font-size: 3rem;
  margin-bottom: 1rem;
}

/* Sections */
section {
  padding: 5rem 5%;
  max-width: 1400px;
  margin: 0 auto;
}

section h2 {
  color: var(--primary-color);
  margin-bottom: 2rem;
  text-align: center;
  font-size: 2.5rem;
}

/* Identity Grid */
.identity-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
}

.identity-item {
  background: var(--white);
  padding: 2rem;
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease;
}

.identity-item:hover {
  transform: translateY(-5px);
}

.identity-item h3 {
  color: var(--secondary-color);
  margin-bottom: 1rem;
}

/* Mission Items */
.mission-items {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.mission-item {
  text-align: center;
  padding: 2rem;
  background: var(--white);
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.mission-item i {
  font-size: 2.5rem;
  color: var (--secondary-color);
  margin-bottom: 1rem;
}

.mission-item h3 {
  color: var(--primary-color);
  margin-bottom: 1rem;
}

/* Motto Section */
.motto {
  background-color: var(--primary-color);
  color: var(--white);
  text-align: center;
}

.motto h2 {
  color: var(--white);
}

.motto-text {
  font-size: 2rem;
  font-weight: bold;
  color: var(--secondary-color);
}

/* Footer */
footer {
  background-color: var(--primary-color);
  color: var(--white);
  padding: 3rem 5% 1rem;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  max-width: 1400px;
  margin: 0 auto;
}

.footer-section h3 {
  color: var(--secondary-color);
  margin-bottom: 1rem;
}

.social-links {
  display: flex;
  gap: 1rem;
  margin-top: 1rem;
}

.social-links a {
  color: var(--white);
  font-size: 1.5rem;
  transition: color 0.3s ease;
}

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

.footer-bottom {
  text-align: center;
  margin-top: 2rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* Responsive Design */
@media (max-width: 768px) {
  .nav-links {
    display: none;
  }

  .hero h1 {
    font-size: 2rem;
  }

  section {
    padding: 3rem 5%;
  }

  .logo-img {
    height: 40px;
    max-width: 150px;
  }

  nav {
    height: 60px;
    padding: 0.5rem 3%;
  }
}

/* Page Header */
.page-header {
  background: var(--primary-color);
  color: var(--white);
  text-align: center;
  padding: 8rem 2rem 4rem;
  margin-top: 0;
}

.page-header h1 {
  font-size: 3rem;
  margin-bottom: 1rem;
}

/* Research Areas */
.research-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.research-item {
  background: var(--white);
  padding: 2rem;
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease;
}

.research-item:hover {
  transform: translateY(-5px);
}

.research-item i {
  font-size: 2.5rem;
  color: var(--secondary-color);
  margin-bottom: 1rem;
}

.research-item h3 {
  color: var(--primary-color);
  margin-bottom: 1rem;
}

.research-item ul {
  list-style: none;
  margin-top: 1rem;
}

.research-item ul li {
  padding: 0.5rem 0;
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.research-item ul li:last-child {
  border-bottom: none;
}

/* Projects Section */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.project-card {
  background: var(--white);
  padding: 2rem;
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  position: relative;
  overflow: hidden;
}

.project-card h3 {
  color: var(--primary-color);
  margin-bottom: 1rem;
}

.project-status {
  position: absolute;
  top: 1rem;
  right: 1rem;
  padding: 0.25rem 1rem;
  border-radius: 20px;
  font-size: 0.875rem;
  background: var(--secondary-color);
  color: var(--primary-color);
  font-weight: bold;
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .page-header {
    padding: 6rem 1rem 3rem;
  }

  .page-header h1 {
    font-size: 2rem;
  }

  .research-grid,
  .projects-grid {
    grid-template-columns: 1fr;
  }
}

/* Publications Page */
.publication-filters {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 2rem;
}

.filter-btn {
  padding: 0.5rem 1.5rem;
  border: 2px solid var(--primary-color);
  background: none;
  color: var(--primary-color);
  border-radius: 25px;
  cursor: pointer;
  transition: all 0.3s ease;
  font-weight: 500;
}

.filter-btn:hover,
.filter-btn.active {
  background: var(--primary-color);
  color: var(--white);
}

.publications-list {
  display: grid;
  gap: 2rem;
}

.publication-item {
  background: var(--white);
  padding: 2rem;
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.pub-type {
  color: var(--secondary-color);
  font-weight: 500;
  margin-bottom: 1rem;
}

.pub-type i {
  margin-right: 0.5rem;
}

.publication-item h3 {
  color: var(--primary-color);
  margin-bottom: 0.5rem;
  font-size: 1.25rem;
}

.authors {
  color: var(--text-color);
  margin-bottom: 0.5rem;
}

.venue {
  color: var (--text-color);
  font-style: italic;
  margin-bottom: 1rem;
}

.pub-links {
  display: flex;
  gap: 1rem;
  margin-top: 1rem;
}

.pub-links a {
  text-decoration: none;
  padding: 0.5rem 1rem;
  border-radius: 4px;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
  transition: all 0.3s ease;
}

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

.btn-paper:hover {
  background: var(--primary-color);
  opacity: 0.9;
}

.btn-code {
  background: #333;
  color: var(--white);
}

.btn-code:hover {
  background: #444;
}

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

.btn-slides:hover {
  opacity: 0.9;
}

@media (max-width: 768px) {
  .publication-filters {
    flex-wrap: wrap;
  }

  .pub-links {
    flex-wrap: wrap;
  }
}

/* Team Page Styles */
.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin: 2rem 0;
}

.team-member {
  background: var(--white);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease;
}

.team-member:hover {
  transform: translateY(-5px);
}

.leadership-card {
  grid-column: 1 / -1;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  max-width: 400px;
  margin: 0 auto;
}

.member-image {
  width: 100%;
  height: 300px;
  overflow: hidden;
}

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

.member-info {
  padding: 1.5rem;
  text-align: center;
}

.member-info h3 {
  color: var(--primary-color);
  margin-bottom: 0.5rem;
  font-size: 1.25rem;
}

.position {
  color: var(--secondary-color);
  font-weight: 500;
  margin-bottom: 0.5rem;
}

.specialization {
  color: var(--text-color);
  font-size: 0.9rem;
  margin-bottom: 1rem;
}

.member-links {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-top: 1rem;
}

.social-link {
  color: var(--primary-color);
  font-size: 1.2rem;
  transition: color 0.3s ease;
}

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

/* Section Headers */
section h2 {
  text-align: center;
  color: var(--primary-color);
  margin: 3rem 0 1rem;
  font-size: 2rem;
}

/* Responsive Design */
@media (max-width: 768px) {
  .member-image {
    height: 250px;
  }

  .leadership-card {
    max-width: 100%;
  }
}

/* About Page Styles */
.about-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin: 2rem 0;
}

.about-card {
  background: var(--white);
  padding: 2rem;
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  text-align: center;
}

.about-card i {
  font-size: 2.5rem;
  color: var(--secondary-color);
  margin-bottom: 1rem;
}

.values-list {
  list-style: none;
  text-align: left;
  margin-top: 1.5rem;
}

.values-list li {
  margin-bottom: 1.5rem;
}

.values-list h3 {
  color: var(--primary-color);
  margin-bottom: 0.5rem;
}

/* Timeline Styles */
.timeline {
  position: relative;
  padding: 2rem 0;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  width: 2px;
  height: 100%;
  background: var(--primary-color);
}

.timeline-item {
  display: flex;
  justify-content: center;
  padding: 2rem 0;
}

.timeline-date {
  background: var(--secondary-color);
  color: var(--primary-color);
  padding: 0.5rem 1rem;
  border-radius: 20px;
  font-weight: bold;
  margin: 0 2rem;
}

.timeline-content {
  background: var(--white);
  padding: 1.5rem;
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  width: 300px;
}

.timeline-content h3 {
  color: var(--primary-color);
  margin-bottom: 0.5rem;
}

/* Stats Section */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  margin: 2rem 0;
}

.stat-card {
  background: var(--white);
  padding: 2rem;
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  text-align: center;
  transition: transform 0.3s ease;
}

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

.stat-number {
  font-size: 2.5rem;
  font-weight: bold;
  color: var(--secondary-color);
  margin-bottom: 0.5rem;
}

.stat-label {
  color: var(--primary-color);
  font-weight: 500;
}

/* Location Section */
.location-section {
  background: var(--light-bg);
  padding: 4rem 0;
}

.location-info {
  display: flex;
  justify-content: center;
  margin-top: 2rem;
}

.address-card {
  background: var(--white);
  padding: 2rem;
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  text-align: center;
  max-width: 400px;
}

.address-card i {
  font-size: 2.5rem;
  color: var(--secondary-color);
  margin-bottom: 1rem;
}

.address-card h3 {
  color: var(--primary-color);
  margin-bottom: 1rem;
}

/* Responsive Design */
@media (max-width: 768px) {
  .timeline::before {
    left: 0;
  }

  .timeline-item {
    flex-direction: column;
    align-items: flex-start;
    padding-left: 2rem;
  }

  .timeline-date {
    margin: 0 0 1rem 0;
  }

  .timeline-content {
    width: 100%;
  }
}

/* Contact Page Styles */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 3rem;
  margin: 2rem 0;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.info-card {
  background: var(--white);
  padding: 2rem;
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease;
}

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

.info-card i {
  font-size: 2rem;
  color: var(--secondary-color);
  margin-bottom: 1rem;
}

.info-card h3 {
  color: var(--primary-color);
  margin-bottom: 1rem;
}

.info-card p {
  margin-bottom: 0.5rem;
}

/* Contact Form Styles */
.contact-form-container {
  background: var(--white);
  padding: 2rem;
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.contact-form-container h2 {
  color: var(--primary-color);
  margin-bottom: 2rem;
  text-align: center;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-group label {
  color: var(--text-color);
  font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
  padding: 0.75rem;
  border: 1px solid #ddd;
  border-radius: 4px;
  font-size: 1rem;
  transition: border-color 0.3s ease;
}

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

.submit-btn {
  background: var(--primary-color);
  color: var(--white);
  padding: 1rem;
  border: none;
  border-radius: 4px;
  font-size: 1rem;
  font-weight: 500;
  cursor: pointer;
  transition: background-color 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

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

/* Social Connect Section */
.connect-section {
  background: var(--light-bg);
  padding: 4rem 0;
  margin-top: 4rem;
}

.social-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.social-card {
  display: flex;
  align-items: center;
  gap: 1rem;
  background: var(--white);
  padding: 1.5rem;
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  text-decoration: none;
  color: var(--text-color);
  transition: transform 0.3s ease;
}

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

.social-card i {
  font-size: 2rem;
}

.social-card.linkedin i {
  color: #0077b5;
}

.social-card.twitter i {
  color: #1da1f2;
}

.social-card.github i {
  color: #333;
}

/* Responsive Design */
@media (max-width: 968px) {
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .contact-info {
    order: 2;
  }

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

/* Sub Navigation */
.sub-nav {
  background: var(--white);
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
  position: sticky;
  top: 70px;
  z-index: 900;
}

.sub-nav-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 5%;
  display: flex;
  gap: 2rem;
  overflow-x: auto;
}

.sub-nav-item {
  padding: 1rem 0;
  color: var(--text-color);
  text-decoration: none;
  white-space: nowrap;
  border-bottom: 2px solid transparent;
  transition: all 0.3s ease;
}

.sub-nav-item:hover,
.sub-nav-item.active {
  color: var(--primary-color);
  border-bottom-color: var(--secondary-color);
}

/* Principles Section */
.principles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin: 2rem 0;
}

.principle-card {
  background: var(--white);
  padding: 2rem;
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  text-align: center;
  transition: transform 0.3s ease;
}

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

.principle-card i {
  font-size: 2.5rem;
  color: var(--secondary-color);
  margin-bottom: 1rem;
}

/* Objectives Table */
.objectives-table {
  overflow-x: auto;
  margin: 2rem 0;
  background: var(--white);
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.objectives-table table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.objectives-table th,
.objectives-table td {
  padding: 1rem;
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.objectives-table th {
  background: var(--primary-color);
  color: var(--white);
}

.objectives-table tr:hover {
  background: var(--light-bg);
}

/* Infrastructure Section */
.infra-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin: 2rem 0;
}

.infra-card {
  background: var(--white);
  padding: 2rem;
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  text-align: center;
  transition: all 0.3s ease;
}

.infra-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
}

.infra-card i {
  font-size: 2.5rem;
  color: var(--secondary-color);
  margin-bottom: 1rem;
}

/* Org Chart */
.org-chart {
  margin: 2rem 0;
  padding: 2rem;
  background: var(--white);
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.org-level-1,
.org-level-2,
.org-level-3 {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin: 2rem 0;
}

.org-box {
  background: var(--primary-color);
  color: var(--white);
  padding: 1rem 2rem;
  border-radius: 4px;
  text-align: center;
  position: relative;
}

.org-box::after {
  content: "";
  position: absolute;
  width: 2px;
  height: 2rem;
  background: var(--primary-color);
  bottom: -2rem;
  left: 50%;
  transform: translateX(-50%);
}

.org-level-3 .org-box::after {
  display: none;
}

/* Responsive Design */
@media (max-width: 768px) {
  .sub-nav-container {
    padding: 0 1rem;
  }

  .org-level-3 {
    flex-direction: column;
    align-items: center;
  }

  .objectives-table {
    font-size: 0.9rem;
  }
}

/* Research Pillars Page */
.research-pillars {
  max-width: 1400px;
  margin: 0 auto;
  padding: 2rem 5%;
  display: grid;
  gap: 2rem;
}

.pillar-card {
  background: var(--white);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease;
}

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

.pillar-header {
  padding: 2rem;
  color: var(--white);
  display: flex;
  align-items: center;
  gap: 1rem;
}

.pillar-header i {
  font-size: 2.5rem;
}

.pillar-header.healthcare {
  background: linear-gradient(135deg, #ff6b6b, #ff8787);
}

.pillar-header.sustainability {
  background: linear-gradient(135deg, #20c997, #38d9a9);
}

.pillar-header.culture {
  background: linear-gradient(135deg, #339af0, #4dabf7);
}

.pillar-header.trustworthy {
  background: linear-gradient(135deg, #845ef7, #9775fa);
}

.flagship-programs {
  padding: 2rem;
}

.flagship {
  margin-bottom: 1.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.flagship h3 {
  color: var(--primary-color);
  margin-bottom: 0.5rem;
}

.kpi-box {
  background: var(--light-bg);
  padding: 1.5rem;
  border-radius: 4px;
  margin-top: 1.5rem;
}

.kpi-box h4 {
  color: var(--primary-color);
  margin-bottom: 1rem;
}

.kpi-box ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.kpi-box ul li {
  padding: 0.5rem 0;
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.kpi-box ul li:last-child {
  border-bottom: none;
}

@media (max-width: 1200px) {
  .nav-links {
    gap: 1rem;
    font-size: 0.9rem;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }

  .pillar-header {
    flex-direction: column;
    text-align: center;
  }
}

/* Infrastructure Page Styles */
.infrastructure-overview {
  max-width: 1400px;
  margin: 0 auto;
  padding: 2rem 5%;
}

.infrastructure-overview > div {
  margin-bottom: 4rem;
}

.resource-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.resource-card {
  background: var(--white);
  padding: 2rem;
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease;
}

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

.resource-card i {
  font-size: 2.5rem;
  color: var(--secondary-color);
  margin-bottom: 1rem;
}

.resource-card h3 {
  color: var(--primary-color);
  margin-bottom: 1rem;
}

.resource-card ul {
  list-style: none;
  padding: 0;
}

.resource-card ul li {
  padding: 0.5rem 0;
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.resource-card ul li:last-child {
  border-bottom: none;
}

/* Timeline Styles */
.sustainability-measures .timeline {
  position: relative;
  padding: 2rem 0;
}

.sustainability-measures .timeline::before {
  content: "";
  position: absolute;
  width: 2px;
  height: 100%;
  background: var(--primary-color);
  left: 50%;
  transform: translateX(-50%);
}

.timeline-item {
  display: flex;
  justify-content: space-between;
  padding: 2rem 0;
}

.timeline-date {
  width: 150px;
  text-align: right;
  padding-right: 2rem;
  font-weight: bold;
  color: var(--secondary-color);
}

.timeline-content {
  width: calc(50% - 100px);
  background: var(--white);
  padding: 1.5rem;
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.timeline-content h3 {
  color: var(--primary-color);
  margin-bottom: 0.5rem;
}

/* Usage Stats */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.stat-card {
  background: var(--white);
  padding: 2rem;
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  text-align: center;
  transition: transform 0.3s ease;
}

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

.stat-number {
  font-size: 2.5rem;
  font-weight: bold;
  color: var(--secondary-color);
  margin-bottom: 0.5rem;
}

.stat-label {
  color: var(--primary-color);
  font-weight: 500;
}

@media (max-width: 768px) {
  .sustainability-measures .timeline::before {
    left: 30px;
  }

  .timeline-item {
    flex-direction: column;
  }

  .timeline-date {
    width: auto;
    text-align: left;
    padding-left: 60px;
    margin-bottom: 1rem;
  }

  .timeline-content {
    width: calc(100% - 60px);
    margin-left: 60px;
  }
}