@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Roboto+Mono:wght@400;500&display=swap');
    
    :root {
      --primary-dark: #1e3a2e;
      --primary-medium: #2d4a3d;
      --primary-light: #3d6b4d;
      --primary-accent: #5d8a6a;
      --secondary-accent: #d4e6a3;
      --text-primary: #2c3e50;
      --text-secondary: #34495e;
      --bg-light: #f8f9fa;
      --bg-white: #ffffff;
      --shadow-sm: 0 2px 4px rgba(0,0,0,0.05);
      --shadow-md: 0 4px 8px rgba(0,0,0,0.1);
      --shadow-lg: 0 12px 24px rgba(0,0,0,0.15);
      --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    
    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }
    
    body {
      font-family: 'Inter', "Segoe UI", Roboto, sans-serif;
      line-height: 1.6;
      color: var(--text-primary);
      background: linear-gradient(135deg, var(--primary-dark), var(--primary-light));
      min-height: 100vh;
      overflow-x: hidden;
    }
    
    html {
      scroll-behavior: smooth;
    }
    
    header {
      position: relative;
      background: url("assets/background.png") no-repeat center center;
      background-size: cover;
      color: white;
      text-align: center;
      padding: 4rem 2rem;
      overflow: hidden;
    }
    
    header::before {
      content: "";
      position: absolute;
      inset: 0;
      background: rgba(0,0,0,0.4);
      z-index: 0;
    }
    
    header * { 
      position: relative; 
      z-index: 1; 
    }
    
    header h1 { 
      font-size: 3.5rem; 
      margin: 0.5rem 0;
      font-weight: 700;
      letter-spacing: -0.5px;
      text-shadow: 0 2px 10px rgba(0,0,0,0.2);
    }
    
    header p { 
      font-size: 1.5rem; 
      color: #fff;
      max-width: 700px;
      margin: 0 auto 1.5rem;
      font-weight: 400;
    }
    
    main { 
      background: var(--bg-white);
      position: relative;
      z-index: 2;
      box-shadow: 0 -10px 30px rgba(0,0,0,0.1);
    }
    
    .container { 
      max-width: 1200px; 
      margin: auto; 
      padding: 3rem 2rem;
    }
    
    section { 
      margin-bottom: 4rem;
      opacity: 0;
      transform: translateY(20px);
      animation: fadeInUp 0.6s forwards;
    }
    
    @keyframes fadeInUp {
      to {
        opacity: 1;
        transform: translateY(0);
      }
    }
    
    section:nth-child(1) { animation-delay: 0.1s; }
    section:nth-child(2) { animation-delay: 0.2s; }
    section:nth-child(3) { animation-delay: 0.3s; }
    section:nth-child(4) { animation-delay: 0.4s; }
    section:nth-child(5) { animation-delay: 0.5s; }
    section:nth-child(6) { animation-delay: 0.6s; }
    section:nth-child(7) { animation-delay: 0.7s; }
    
    h2 { 
      color: var(--text-primary);
      margin-bottom: 1.5rem;
      font-weight: 600;
      font-size: 2.2rem;
    }
    
    h3 { 
      color: var(--text-secondary);
      margin-bottom: 1rem;
      font-weight: 500;
      font-size: 1.3rem;
    }
    
    .logo-container {
      display: flex;
      justify-content: center;
      align-items: center;
      margin: 1.5rem 0;
      height: 160px;
      width: 100%;
    }
    
    .logo-image {
      width: 160px;
      height: 160px;
      object-fit: contain;
      filter: drop-shadow(0 10px 15px rgba(0,0,0,0.2));
      transition: transform 0.5s ease;
    }
    
    .logo-image:hover {
      transform: scale(1.05);
    }
    

    .badges {
      text-align: center;
      margin: 2rem 0;
      display: flex;
      justify-content: center;
      flex-wrap: wrap;
      gap: 12px;
      padding: 20px;
    }
    
    .badges img {
      height: 24px;
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
      filter: grayscale(0.7);
      border-radius: 4px;
    }
    
    .badges img:hover {
      transform: translateY(-4px) scale(1.05);
      filter: grayscale(0);
    }

    
    .redirect {
      text-align: center;
      margin: 3rem 0;
    }
    
    .redirect a {
      background: linear-gradient(135deg, var(--primary-medium), var(--primary-accent));
      color: white;
      padding: 1rem 2.5rem;
      font-size: 1.2rem;
      border-radius: 50px;
      text-decoration: none;
      display: inline-block;
      margin: 0.5rem;
      font-weight: 500;
      transition: var(--transition);
      box-shadow: var(--shadow-md);
      position: relative;
      overflow: hidden;
    }
    
    .redirect a::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: rgba(255,255,255,0.1);
      transform: translateX(-100%);
      transition: transform 0.5s ease;
    }
    
    .redirect a:hover::before {
      transform: translateX(0);
    }
    
    .redirect a:hover { 
      background: linear-gradient(135deg, var(--primary-dark), var(--primary-medium));
      transform: translateY(-5px);
      box-shadow: var(--shadow-lg);
    }
    
    .redirect a.secondary {
      background: linear-gradient(135deg, var(--primary-dark), var(--primary-medium));
    }
    
    .redirect a.secondary:hover {
      background: linear-gradient(135deg, #0f1f1a, var(--primary-dark));
    }
    
    .carousel {
      position: relative;
      width: 100%;
      max-width: 900px;
      margin: 3rem auto;
      overflow: hidden;
      border-radius: 16px;
      background: var(--bg-white);
      box-shadow: var(--shadow-lg);
      height: 550px;
    }
    
    .carousel-track {
      display: flex;
      width: 1200%;
      transition: transform 0.5s ease-in-out;
      height: 100%;
    }
    
    .carousel-track img {
      width: 8.333333%;
      flex-shrink: 0;
      display: block;
      height: 100%;
      object-fit: contain;
      padding: 20px;
      box-sizing: border-box;
    }
    
    .carousel-arrow {
      position: absolute;
      top: 50%;
      transform: translateY(-50%);
      width: 36px;
      height: 36px;
      background-color: rgba(45, 74, 61, 0.7);
      border-radius: 4px;
      display: flex;
      justify-content: center;
      align-items: center;
      cursor: pointer;
      z-index: 10;
      font-size: 16px;
      border: none;
      color: white;
      transition: var(--transition);
      backdrop-filter: blur(5px);
    }
    
    .carousel-arrow:hover {
      background-color: rgba(45, 74, 61, 0.9);
    }
    
    .carousel-arrow.prev {
      left: 15px;
      border-radius: 4px 0 0 4px;
    }
    
    .carousel-arrow.next {
      right: 15px;
      border-radius: 0 4px 4px 0;
    }
    
    .table-container {
      overflow-x: auto;
      margin-top: 1.5rem;
      border-radius: 8px;
      box-shadow: var(--shadow-sm);
    }
    
    table {
      width: 100%;
      border-collapse: collapse;
      background: var(--bg-white);
    }
    
    th, td {
      border: 1px solid #e0e0e0;
      padding: 0.75rem;
      text-align: left;
      font-size: 0.95rem;
    }
    
    th {
      background-color: var(--primary-medium);
      color: white;
      font-weight: 500;
      text-transform: uppercase;
      font-size: 0.85rem;
      letter-spacing: 0.5px;
    }
    
    tr:nth-child(even) {
      background-color: var(--bg-light);
    }
    
    tr:hover {
      background-color: rgba(93, 138, 106, 0.1);
    }
    
    .citation, .support, .table-instructions {
      margin-top: 2.5rem;
    }
    
    .citation p {
      font-style: italic;
      color: var(--text-primary);
      line-height: 1.7;
    }
    
    .support p {
      line-height: 1.7;
      color: var(--text-secondary);
    }
    
    .support a {
      color: var(--primary-medium);
      text-decoration: none;
      font-weight: 500;
      position: relative;
    }
    
    .support a::after {
      content: '';
      position: absolute;
      bottom: -2px;
      left: 0;
      width: 0;
      height: 2px;
      background-color: var(--primary-medium);
      transition: width 0.3s ease;
    }
    
    .support a:hover { 
      text-decoration: none;
    }
    
    .support a:hover::after {
      width: 100%;
    }
    
    .citation-select-container select, 
    .citation-select-container button {
       font-size: 0.9rem;        
       padding: 0.5rem 1rem;  
       margin-right: 0.5rem;
       min-width: 200px;       
       border-radius: 8px;     
       border: 1px solid #ddd;
       background-color: var(--bg-white);
       transition: var(--transition);
    }
    
    .citation-select-container select:hover,
    .citation-select-container button:hover {
      border-color: var(--primary-medium);
    }
    
    .citation-select-container button {
      background: linear-gradient(135deg, var(--primary-medium), var(--primary-accent));
      color: white;
      border: none;
      cursor: pointer;
      font-weight: 500;
    }
    
    .citation-select-container button:hover {
      background: linear-gradient(135deg, var(--primary-dark), var(--primary-medium));
    }
    
    footer {
      background: linear-gradient(135deg, var(--primary-dark), var(--primary-medium));
      color: #fff;
      display: flex;
      justify-content: center;
      align-items: center;
      padding: 1.5rem;
      font-size: 0.95rem;
      font-weight: 400;
    }
    
    footer a {
      color: var(--secondary-accent);
      text-decoration: none;
      font-weight: 500;
      position: relative;
    }
    
    footer a::after {
      content: '';
      position: absolute;
      bottom: -2px;
      left: 0;
      width: 0;
      height: 2px;
      background-color: var(--secondary-accent);
      transition: width 0.3s ease;
    }
    
    footer a:hover {
      color: #e6f5a3;
    }
    
    footer a:hover::after {
      width: 100%;
    }

    .footer-content {
      display: flex;
      justify-content: space-between;
      align-items: center;
      width: 100%;
    }

    .footer-left, 
    .footer-center, 
    .footer-right {
      flex: 1;
    }

    .footer-center {
      text-align: center;
    }

    .footer-right {
      text-align: right;
    }
    
    .template-container {
      display: flex;
      flex-wrap: wrap;
      justify-content: flex-start;
      gap: 25px;
      margin-top: 25px;
      margin-bottom: 35px;
    }
    
    .template-box {
      background: linear-gradient(135deg, var(--bg-light), #e9ecef);
      border-radius: 16px;
      padding: 25px;
      width: 220px;
      text-align: center;
      box-shadow: var(--shadow-md);
      transition: var(--transition);
      border: 1px solid #dee2e6;
      position: relative;
      overflow: hidden;
    }
    
    .template-box::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 5px;
      background: linear-gradient(90deg, var(--primary-medium), var(--primary-accent));
    }
    
    .template-box:hover {
      transform: translateY(-10px);
      box-shadow: var(--shadow-lg);
    }
    
    .template-box h3 {
      margin-top: 0;
      color: var(--text-primary);
      font-size: 1.3rem;
      border-bottom: 2px solid var(--primary-medium);
      padding-bottom: 12px;
      margin-bottom: 18px;
    }
    
    .template-buttons {
      display: flex;
      flex-direction: row;
      gap: 12px;
      justify-content: center;
    }
    
    .template-buttons a {
      background: linear-gradient(135deg, var(--primary-medium), var(--primary-accent));
      color: white;
      padding: 10px 18px;
      border-radius: 25px;
      text-decoration: none;
      font-size: 0.95rem;
      font-weight: 500;
      transition: var(--transition);
      display: inline-block;
      box-shadow: var(--shadow-sm);
    }
    
    .template-buttons a:hover {
      background: linear-gradient(135deg, var(--primary-dark), var(--primary-medium));
      transform: translateY(-3px);
      box-shadow: var(--shadow-md);
    }
    
    .citation-download {
      margin-top: 1.5rem;
      display: flex;
      gap: 15px;
    }
    
    .citation-download button {
      background: linear-gradient(135deg, var(--primary-medium), var(--primary-accent));
      color: white;
      border: none;
      padding: 0.6rem 1.2rem;
      border-radius: 8px;
      cursor: pointer;
      font-size: 0.9rem;
      font-weight: 500;
      transition: var(--transition);
      box-shadow: var(--shadow-sm);
    }
    
    .citation-download button:hover {
      background: linear-gradient(135deg, var(--primary-dark), var(--primary-medium));
      transform: translateY(-3px);
      box-shadow: var(--shadow-md);
    }
    
    .feature-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
      gap: 25px;
      margin: 2.5rem 0;
    }
    
    .feature-card {
      background: var(--bg-light);
      padding: 2rem;
      border-radius: 12px;

      transition: var(--transition);
      box-shadow: var(--shadow-sm);
      height: 100%;
      display: flex;
      flex-direction: column;
    }
    
    .feature-card:hover {
      transform: translateY(-8px);
      box-shadow: var(--shadow-lg);
    }
    
    .feature-card h3 {
      margin-top: 0;
      color: var(--text-primary);
      font-size: 1.3rem;
      margin-bottom: 1rem;
    }
    
    .feature-card p {
      color: var(--text-secondary);
      flex-grow: 1;
    }
    
    .viz-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
      gap: 20px;
      margin: 2.5rem 0;
    }
    
    .viz-item {
      background: linear-gradient(135deg, #e8f5e9, #f1f8e9);
      padding: 1.2rem;
      border-radius: 10px;
      font-size: 0.95rem;

      transition: var(--transition);
      box-shadow: var(--shadow-sm);
      font-weight: 500;
    }
    
    .viz-item:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-md);
    }
    
    pre {
      background: linear-gradient(135deg, var(--text-primary), var(--text-secondary));
      color: white;
      padding: 1.5rem;
      border-radius: 10px;
      overflow-x: auto;
      font-family: 'Roboto Mono', 'Courier New', monospace;
      box-shadow: var(--shadow-md);
      margin: 1.5rem 0;
    }
    
    .code-block {
      background: var(--bg-light);
      padding: 0.8rem;
      border-radius: 6px;
      font-family: 'Roboto Mono', 'Courier New', monospace;
      font-size: 0.9rem;
      box-shadow: inset 0 1px 3px rgba(0,0,0,0.1);
    }
    
    .section-header {
      text-align: left;
      margin-bottom: 3rem;
    }
    
    .section-header h2 {
      position: relative;
      display: inline-block;
      padding-bottom: 12px;
    }
    
    .section-header h2:after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 100%;
      height: 4px;
      background: linear-gradient(90deg, var(--primary-medium), var(--primary-accent));
      border-radius: 4px;
    }
    
    .methods-text {
      background: var(--bg-light);
      padding: 2rem;
      border-radius: 12px;

      box-shadow: var(--shadow-sm);
      margin: 1.5rem 0;
    }
    
    .methods-text p {
      font-style: italic;
      color: var(--text-primary);
      line-height: 1.8;
    }
    

    @media (max-width: 768px) {
      header h1 {
        font-size: 2.5rem;
      }
      
      header p {
        font-size: 1.2rem;
      }
      
      .container {
        padding: 2rem 1rem;
      }
      
      .carousel {
        height: 400px;
      }
      
      .carousel-arrow {
        width: 30px;
        height: 30px;
        font-size: 14px;
      }
      
      .carousel-arrow.prev {
        left: 10px;
      }
      
      .carousel-arrow.next {
        right: 10px;
      }
      
      .feature-grid {
        grid-template-columns: 1fr;
      }
      
      .viz-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      
      .template-box {
        width: 100%;
      }

      .footer-content {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
      }

      .footer-left, .footer-center, .footer-right {
        text-align: center;
        flex: auto;
      }
    }
    
    @media (max-width: 480px) {
      header {
        padding: 3rem 1rem;
      }
      
      header h1 {
        font-size: 2rem;
      }
      
      .redirect a {
        padding: 0.8rem 1.5rem;
        font-size: 1rem;
      }
      
      .viz-grid {
        grid-template-columns: 1fr;
      }
    }