/* Reset & Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  
  body {
    font-family: 'Unbounded', sans-serif;
    line-height: 1.6;
    color: #1a1a1a;
  }
  
  .container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
  }
  
  img {
    max-width: 100%;
    height: auto;
  }
  
  a {
    text-decoration: none;
    color: inherit;
  }
  
  ul {
    list-style: none;
  }
  
  /* Typography */
  h1, h2, h3, h4, h5, h6 {
    margin-bottom: 0.5em;
    font-weight: 700;
    line-height: 1.2;
  }
  
  .section-title {
    font-size: 2.5rem;
    margin-bottom: 2rem;
    text-align: center;
  }
  
  /* Buttons */
  .btn {
    display: inline-block;
    background-color: #2d41e2;
    color: white;
    padding: 1rem 2rem;
    font-weight: 500;
    border: none;
    cursor: pointer;
    transition: background-color 0.3s ease;
    text-align: center;
  }
  
  .btn:hover {
    background-color: #1e30c0;
  }
  
  .btn-container {
    text-align: center;
    margin-top: 2rem;
  }
  
  /* Header & Navigation */
  header {
    background-color: white;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
  }
  
  .main-nav {
    padding: 1rem 0;
  }
  
  .main-nav .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
  }
  
  .logo {
    font-size: 1.5rem;
    font-weight: 700;
  }
  
  .nav-links {
    display: flex;
    gap: 2rem;
  }
  
  .mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 6px;
    cursor: pointer;
  }
  
  .mobile-menu-btn span {
    display: block;
    width: 30px;
    height: 3px;
    background-color: #1a1a1a;
  }

  html {
    scroll-behavior: smooth;
  }
  
  /* Hero Section */
  .hero {
    background-image: linear-gradient(to right, rgba(0, 0, 0, 0.142), rgba(0, 0, 0, 0.329)), url('./assets/hero-bg.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    color: white;
    padding: 4rem 0;
  }

  .thank-section {
    text-align: center;
    padding: 200px 0px;
  }

  .thank-section .btn {
    margin-top: 30px;
  }

  .main-section {
    padding: 100px 0px;
  }

  .main-section h1 {
    text-align: center;
  }
  
  .hero h1 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
  }
  
  .hero p {
    font-size: 1.1rem;
    max-width: 800px;
    margin-bottom: 2rem;
  }
  
  /* Stats Section */
  .stats {
    padding: 4rem 0;
  }
  
  .stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
  }
  
  .stat-box {
    background-color: #2d41e2;
    color: white;
    padding: 3rem 2rem;
    text-align: center;
    border-radius: 4px;
  }
  
  .stat-box h2 {
    font-size: 3rem;
    margin-bottom: 0.5rem;
  }
  
  .stat-box p {
    font-size: 1.1rem;
  }
  
  /* Fields Section */
  .fields {
    padding: 4rem 0;
  }
  
  .fields-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
  }
  
  .field-item {
    text-align: center;
    padding: 2rem;
  }
  
  .field-item h3 {
    font-size: 1.3rem;
  }
  
  /* About Section */
  .about {
    padding: 4rem 0;
    background-color: #f8f8f8;
  }
  
  .about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
  }
  
  .about-content h3 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
  }
  
  .about-content p {
    margin-bottom: 2rem;
  }
  
  /* Services Section */
  .services {
    padding: 4rem 0;
  }
  
  .services-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
  }
  
  .service-item {
    padding: 1.5rem;
    text-align: center;
  }
  
  .service-item h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
  }
  
  /* Research Section */
  .research {
    padding: 4rem 0;
    background-color: #f8f8f8;
    background-image: url('./assets/research-bg.png');
    background-size: cover;
    background-position: center;
    color: white;
  }
  
  .research-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    margin-bottom: 2rem;
  }
  
  .research-item {
    padding: 1.5rem;
  }
  
  .research-item h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
  }
  
  /* Contact Section */
  .contact {
    padding: 4rem 0;
    background-color: #1a1a1a;
    color: white;
  }
  
  form#contact {
    max-width: 800px;
    margin: 0 auto;
  }
  
  .form-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-bottom: 1.5rem;
  }
  
  .form-group {
    margin-bottom: 1.5rem;
  }
  
  .form-group label {
    display: block;
    margin-bottom: 0.5rem;
  }
  
  .form-group input {
    width: 100%;
    padding: 0.8rem;
    border: none;
    background-color: white;
  }
  
  .submit-btn {
    display: block;
    margin-left: auto;
  }
  
  /* Footer */
  footer {
    background-color: #1a1a1a;
    color: white;
    padding: 2rem 0;
  }
  
  .footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
  }
  
  .footer-logo {
    font-size: 1.3rem;
    font-weight: 600;
  }
  
  .footer-links {
    display: flex;
    gap: 1.5rem;
  }
  
  .copyright {
    text-align: center;
    padding-top: 1rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
  }
  
  /* Cookie Popup */
  .cookie-popup {
    position: fixed;
    bottom: 20px;
    left: 20px;
    max-width: 500px;
    background-color: white;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.15);
    z-index: 1000;
    display: none;
  }
  
  .cookie-popup.show {
    display: block;
  }
  
  .cookie-content {
    padding: 2rem;
  }
  
  .cookie-content h2 {
    font-size: 2.2rem;
    margin-bottom: 1rem;
  }
  
  .cookie-content p {
    margin-bottom: 1.5rem;
  }
  
  .cookie-content a {
    text-decoration: underline;
  }
  
  .cookie-buttons {
    display: flex;
    flex-direction: column;
    gap: 1rem;
  }
  
  .cookie-btn {
    width: 100%;
  }
  
  .refuse-btn {
    background: none;
    border: none;
    cursor: pointer;
    font-weight: 600;
    font-size: 1rem;
    padding: 0.5rem;
  }
  
  /* Responsive Styles */
  @media (max-width: 992px) {
    .stats-grid,
    .services-grid,
    .research-grid {
      grid-template-columns: repeat(2, 1fr);
    }
    
    .about-grid {
      grid-template-columns: 1fr;
    }
    
    .about-image {
      order: 2;
    }
    
    .about-content {
      order: 1;
    }
  }
  
  @media (max-width: 768px) {
    .section-title {
      font-size: 2rem;
    }
    
    .nav-links {
      display: none;
    }
    
    .mobile-menu-btn {
      display: flex;
    }
    
    .form-row {
      grid-template-columns: 1fr;
    }
    
    .fields-grid {
      grid-template-columns: 1fr;
    }
    
    .footer-content {
      flex-direction: column;
      gap: 1.5rem;
    }
    
    .footer-links {
      flex-wrap: wrap;
      justify-content: center;
    }
  }
  
  @media (max-width: 576px) {
    .stats-grid,
    .services-grid,
    .research-grid {
      grid-template-columns: 1fr;
    }
    
    .hero h1 {
      font-size: 2rem;
    }
    
    .stat-box {
      padding: 2rem 1rem;
    }
    
    .stat-box h2 {
      font-size: 2.5rem;
    }
    
    .cookie-popup {
      left: 10px;
      right: 10px;
      max-width: calc(100% - 20px);
    }
  }