:root {
      --primary-purple: #5F259F;
      --dark-purple: #351259;
      --light-purple: #8A50C9;
      --lighter-purple: #f9f4ff;
      --white: #FFFFFF;
    }

    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
      font-family: 'Arial', sans-serif;
    }

    body {
      background-color: #f8f8f8;
      overflow-x: hidden;
    }

    .navbar {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 1rem 5%;
      background-color: var(--white);
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
      position: sticky;
      top: 0;
      z-index: 100;
    }

    .logo {
      display: flex;
      align-items: center;
      color: var(--primary-purple);
      font-weight: bold;
      font-size: 1.2rem;
      text-decoration: none;
    }

    .logo-icon {
      width: 30px;
      height: 30px;
      margin-right: 10px;
    }

    .nav-links {
      display: flex;
      list-style: none;
    }

    .nav-links li {
      margin: 0 1rem;
    }

    .nav-links a {
      text-decoration: none;
      color: #333;
      font-weight: 500;
      transition: color 0.3s ease;
    }

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

    .nav-links a.active {
      color: var(--primary-purple);
      font-weight: 600;
    }

    .auth-buttons {
      display: flex;
      gap: 1rem;
    }

    .btn {
      padding: 0.5rem 1rem;
      border-radius: 5px;
      cursor: pointer;
      font-weight: 500;
      transition: all 0.3s ease;
      text-decoration: none;
    }

    .btn-light {
      background-color: transparent;
      color: var(--primary-purple);
      border: 1px solid var(--primary-purple);
    }

    .btn-light:hover {
      background-color: var(--lighter-purple);
    }

    .btn-primary {
      background-color: var(--primary-purple);
      color: var(--white);
      border: 1px solid var(--primary-purple);
    }

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

    .hero-section {
      position: relative;
      height: 80vh;
      background: linear-gradient(135deg, var(--dark-purple), var(--primary-purple));
      color: var(--white);
      display: flex;
      align-items: center;
      padding: 0 5%;
      overflow: hidden;
    }

    .hero-content {
      width: 50%;
      padding-right: 2rem;
      z-index: 1;
    }

    .hero-title {
      font-size: 3rem;
      font-weight: bold;
      margin-bottom: 1.5rem;
    }

    .hero-description {
      font-size: 1.1rem;
      line-height: 1.6;
      margin-bottom: 2rem;
    }

    .hero-image {
      position: absolute;
      right: 0;
      top: 0;
      height: 100%;
      width: 50%;
      opacity: 0.3;
      background-image: url('/api/placeholder/600/800');
      background-position: center;
      background-size: cover;
    }

    .dot-navigation {
      position: absolute;
      bottom: 2rem;
      left: 0;
      right: 0;
      display: flex;
      justify-content: center;
      gap: 0.5rem;
    }

    .dot {
      width: 10px;
      height: 10px;
      border-radius: 50%;
      background-color: #ffffff80;
      cursor: pointer;
      transition: all 0.3s ease;
    }

    .dot.active {
      background-color: var(--white);
      width: 25px;
      border-radius: 5px;
    }

    .carousel-arrows {
      position: absolute;
      top: 50%;
      width: 100%;
      display: flex;
      justify-content: space-between;
      padding: 0 1rem;
      transform: translateY(-50%);
      z-index: 1;
    }

    .arrow {
      background-color: rgba(255, 255, 255, 0.2);
      width: 40px;
      height: 40px;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--white);
      cursor: pointer;
      transition: all 0.3s ease;
    }

    .arrow:hover {
      background-color: rgba(255, 255, 255, 0.4);
    }

    .partners-section {
      background-color: var(--white);
      padding: 2rem;
      margin: 2rem;
      border-radius: 10px;
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    }

    .partners-logos {
      display: flex;
      justify-content: center;
      align-items: center;
      gap: 3rem;
      padding: 1rem 0;
    }

    .partner-logo {
      height: 40px;
      object-fit: contain;
    }

    .challenges-section {
      padding: 4rem 5%;
      background-color: var(--lighter-purple);

    }
    .section-title {
      color: var(--primary-purple);
      font-size: 2.5rem;
      margin-bottom: 1.5rem;
      text-align: center;
    }

    .section-text {
      max-width: 50%;
      width: 50%;
      text-align: center;
      padding-right: 40px;
      color: #555;
      line-height: 1.6;
      margin-bottom: 1rem;    
      align-items: center;
      display: flex;
      position:absolute;
      justify-content: flex-start; 
    }
    

    .challenges-container {
      display: flex;
      align-items: center;
      gap: 3rem;
      margin-top: 2rem;
    }

    .challenges-list {
      flex: 1;
    }

    .challenge-item {
      background-color: var(--white);
      margin-bottom: 1rem;
      padding: 1rem;
      border-radius: 8px;
      display: flex;
      align-items: center;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
      transition: all 0.3s ease;
      cursor: pointer;
    }

    .challenge-item:hover {
      transform: translateY(-3px);
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    }

    .challenge-number {
      background-color: var(--primary-purple);
      color: var(--white);
      width: 30px;
      height: 30px;
      border-radius: 5px;
      display: flex;
      align-items: center;
      justify-content: center;
      margin-right: 1rem;
      font-weight: bold;
    }

    .challenge-text {
      font-weight: 500;
    }
   
    .challenges-image {
      flex: 1;
      border-radius: 10px;
      overflow: hidden;
    }

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

    .challenges-tooltip {
      position: absolute;
      background-color: var(--white);
      padding: 1rem;
      border-radius: 8px;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
      max-width: 250px;
      bottom: 20px;
      right: 20px;
      font-size: 0.9rem;
      color: #333;
    }

    .solutions-section {
      padding: 4rem 5%;
    }

    .solution-item {
      display: flex;
      align-items: center;
      margin-bottom: 3rem;
    }

    .solution-item:nth-child(even) {
      flex-direction: row-reverse;
    }

    .solution-content {
      flex: 1;
      padding: 2rem;
    }

    .solution-title {
      color: var(--primary-purple);
      font-size: 1.8rem;
      margin-bottom: 1rem;
      font-weight: 600;
    }

    .solution-description {
      color: #555;
      line-height: 1.6;
      margin-bottom: 1rem;
    }

    .solution-image {
      flex: 1;
      border-radius: 10px;
      overflow: hidden;
    }

    .solution-image img {
      width: 100%;
      height: auto;
      object-fit: cover;
      border-radius: 10px;
    }

    .demo-section {
      text-align: center;
      padding: 3rem 5%;
      background-color: var(--lighter-purple);
    }

    .demo-title {
      color: var(--primary-purple);
      font-size: 2.5rem;
      margin-bottom: 1.5rem;
    }

    .demo-description {
      max-width: 800px;
      margin: 0 auto 2rem;
      color: #555;
      line-height: 1.6;
      max-width: 50%;
      width: 50%;
      text-align: center;
      padding-right: 40px;
      color: #555;
      line-height: 1.6;
      margin-bottom: 1rem;    
      align-items: center;
      display: flex;
      position:absolute;
      justify-content: flex-start; 
    }

    .demo-content {
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 2rem;
    }

    .demo-options {
      flex: 1;
      max-width: 40%;
    }

    .demo-option {
      padding: 1rem;
      margin-bottom: 1rem;
      background-color: var(--white);
      border: 1px solid #eee;
      border-radius: 10px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      transition: all 0.3s ease;
      cursor: pointer;
      text-align: left;
    }

    .demo-option:hover {
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
      transform: translateY(-3px);
    }

    .demo-option-text {
      color: var(--primary-purple);
      font-weight: bold;
    }

    .demo-image {
      flex: 1;
      max-width: 60%;
    }

    .demo-image img {
      width: 100%;
      border-radius: 10px;
      box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
    }

    .accessibility-widget {
      position: fixed;
      bottom: 2rem;
      right: 2rem;
      background-color: var(--primary-purple);
      color: var(--white);
      width: 50px;
      height: 50px;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
      z-index: 100;
    }

    .double-sided-section {
      padding: 4rem 5%;
      background-color: var(--white);
    }

    footer {
      background-color: var(--dark-purple);
      color: var(--white);
      padding: 3rem 5% 2rem;
    }

    .footer-content {
      display: flex;
      justify-content: space-between;
      margin-bottom: 2rem;
    }

    .footer-column {
      flex: 1;
      margin-right: 2rem;
    }

    .footer-column h3 {
      margin-bottom: 1.5rem;
      font-size: 1.2rem;
    }

    .footer-links {
      list-style: none;
    }

    .footer-links li {
      margin-bottom: 0.8rem;
    }

    .footer-links a {
      color: var(--white);
      opacity: 0.8;
      text-decoration: none;
      transition: opacity 0.3s ease;
    }

    .footer-links a:hover {
      opacity: 1;
    }

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

    .social-icon {
      background-color: rgba(255, 255, 255, 0.2);
      width: 40px;
      height: 40px;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      transition: all 0.3s ease;
    }

    .social-icon:hover {
      background-color: rgba(255, 255, 255, 0.3);
    }

    .copyright {
      text-align: center;
      padding-top: 2rem;
      border-top: 1px solid rgba(255, 255, 255, 0.1);
      font-size: 0.9rem;
      opacity: 0.7;
    }

    .mobile-menu-btn {
      display: none;
      background: none;
      border: none;
      font-size: 1.5rem;
      color: var(--primary-purple);
      cursor: pointer;
    }

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

    .fade-in {
      opacity: 0;
      transform: translateY(20px);
      animation: fadeIn 1s ease forwards;
    }

    @media (max-width: 992px) {
      .nav-links {
        display: none;
        position: absolute;
        top: 70px;
        left: 0;
        right: 0;
        background-color: var(--white);
        flex-direction: column;
        padding: 1rem 0;
        box-shadow: 0 10px 15px rgba(0, 0, 0, 0.1);
      }

      .nav-links.show {
        display: flex;
      }

      .nav-links li {
        margin: 0.5rem 2rem;
      }

      .mobile-menu-btn {
        display: block;
        order: 3;
      }

      .auth-buttons {
        order: 2;
      }

      .hero-content {
        width: 100%;
        padding-right: 0;
        text-align: center;
      }

      .hero-image {
        display: none;
      }

      .challenges-container {
        flex-direction: column;
      }

      .solution-item, .solution-item:nth-child(even) {
        flex-direction: column;
      }

      .demo-content {
        flex-direction: column;
      }

      .demo-options, .demo-image {
        max-width: 100%;
      }

      .footer-content {
        flex-direction: column;
      }

      .footer-column {
        margin-bottom: 2rem;
        margin-right: 0;
      }
    }