:root {
    --green-primary: #2A9D8F;
    --blue-primary: #264653;
    --accent-yellow: #E9C46A;
    --accent-orange: #F4A261;
    --accent-red: #E76F51;
    --gray-light: #F8F9FA;
    --gray-medium: #E9ECEF;
    --gray-dark: #495057;
    --text-primary: #333333;
    --text-secondary: #6C757D;
    --white: #FFFFFF;
    --box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --border-radius: 8px;
    --transition: all 0.3s ease;
  }
  
  * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  
  html {
    scroll-behavior: smooth;
  }
  
  body {
    font-family: 'Poppins', sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    overflow-x: hidden;
  }
  
  .container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
  }
  
  a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
  }
  
  ul {
    list-style: none;
  }
  
  h1, h2, h3, h4, h5, h6 {
    line-height: 1.2;
    margin-bottom: 0.75rem;
  }
  
  img {
    max-width: 100%;
    display: block;
  }
  
  .section-header {
    text-align: center;
    margin-bottom: 3rem;
  }
  
  .section-header h2 {
    font-size: 2.5rem;
    color: var(--blue-primary);
    margin-bottom: 1rem;
  }
  
  .section-header p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
  }
  
  /* Buttons */
  .btn {
    display: inline-block;
    padding: 0.8rem 1.8rem;
    border-radius: var(--border-radius);
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid transparent;
  }
  
  .btn-primary {
    background-color: var(--green-primary);
    color: var(--white);
  }
  
  .btn-primary:hover {
    background-color: #238378;
  }
  
  .btn-outline {
    border-color: var(--green-primary);
    color: var(--green-primary);
    background-color: transparent;
  }
  
  .btn-outline:hover {
    background-color: var(--green-primary);
    color: var(--white);
  }
  
  .cta-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
  }
  
  /* Header and Navigation */
  header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: var(--white);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    transition: var(--transition);
  }
  
  header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 20px;
  }
  
  .logo h1 {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 0;
  }
  
  .logo span {
    color: var(--green-primary);
  }
  
  nav ul {
    display: flex;
    gap: 1.5rem;
  }
  
  nav ul li a {
    font-weight: 500;
    position: relative;
    padding: 0.5rem 0;
  }
  
  nav ul li a:after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--green-primary);
    transition: var(--transition);
  }
  
  nav ul li a:hover:after,
  nav ul li a.active:after {
    width: 100%;
  }
  
  .menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    height: 21px;
    width: 30px;
    cursor: pointer;
  }
  
  .menu-toggle span {
    display: block;
    height: 3px;
    width: 100%;
    background-color: var(--blue-primary);
    border-radius: 3px;
    transition: var(--transition);
  }
  
  /* Hero Section */
  .hero {
    padding: 160px 0 100px;
    background: linear-gradient(135deg, rgba(42, 157, 143, 0.1) 0%, rgba(38, 70, 83, 0.1) 100%);
  }
  
  .hero .container {
    display: flex;
    align-items: center;
    gap: 4rem;
  }
  
  .hero-content {
    flex: 1;
  }
  
  .hero-content h2 {
    font-size: 1.5rem;
    color: var(--green-primary);
    margin-bottom: 0.5rem;
  }
  
  .hero-content h1 {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    color: var(--blue-primary);
  }
  
  .hero-content .highlight {
    color: var(--green-primary);
  }
  
  .hero-content p {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    color: var(--text-secondary);
    max-width: 500px;
  }
  
  .hero-image {
    flex: 1;
    display: flex;
    justify-content: center;
  }
  
  .image-container {
    width: 100%;
    max-width: 500px;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
    position: relative;
  }
  
  .image-container::before {
    content: '';
    position: absolute;
    top: -20px;
    left: -20px;
    width: 100px;
    height: 100px;
    border-top: 5px solid var(--green-primary);
    border-left: 5px solid var(--green-primary);
    z-index: -1;
  }
  
  .image-container::after {
    content: '';
    position: absolute;
    bottom: -20px;
    right: -20px;
    width: 100px;
    height: 100px;
    border-bottom: 5px solid var(--accent-yellow);
    border-right: 5px solid var(--accent-yellow);
    z-index: -1;
  }
  
  .image-container img {
    width: 100%;
    height: auto;
  }
  
  /* How It Works Section */
  .how-it-works {
    padding: 100px 0;
    background-color: var(--white);
  }
  
  .steps {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
  }
  
  .step {
    flex: 1;
    min-width: 300px;
    max-width: 350px;
    text-align: center;
    padding: 2rem;
    background-color: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    transition: var(--transition);
  }
  
  .step:hover {
    transform: translateY(-10px);
  }
  
  .step-icon {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    background-color: rgba(42, 157, 143, 0.1);
    border-radius: 50%;
    color: var(--green-primary);
  }
  
  .step h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--blue-primary);
  }
  
  .step p {
    color: var(--text-secondary);
  }
  
  /* Skills Section */
  .skills-section {
    padding: 100px 0;
    background-color: var(--gray-light);
  }
  
  .skills-filter {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 2rem;
  }
  
  .filter-btn {
    padding: 0.5rem 1.5rem;
    background-color: var(--white);
    border: 1px solid var(--gray-medium);
    border-radius: 30px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
  }
  
  .filter-btn:hover, .filter-btn.active {
    background-color: var(--green-primary);
    color: var(--white);
    border-color: var(--green-primary);
  }
  
  .skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
  }
  
  .skill-card {
    background-color: var(--white);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
  }
  
  .skill-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
  }
  
  .skill-img {
    height: 200px;
    overflow: hidden;
  }
  
  .skill-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
  }
  
  .skill-card:hover .skill-img img {
    transform: scale(1.05);
  }
  
  .skill-content {
    padding: 1.5rem;
  }
  
  .skill-category {
    display: inline-block;
    padding: 0.2rem 0.8rem;
    background-color: rgba(42, 157, 143, 0.1);
    color: var(--green-primary);
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
    margin-bottom: 1rem;
  }
  
  .skill-title {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    color: var(--blue-primary);
  }
  
  .skill-description {
    color: var(--text-secondary);
    margin-bottom: 1rem;
  }
  
  .skill-offered-by {
    display: flex;
    align-items: center;
    gap: 0.5rem;
  }
  
  .offered-by-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    overflow: hidden;
  }
  
  .offered-by-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
  }
  
  .offered-by-info span {
    display: block;
    font-size: 0.9rem;
  }
  
  .offered-by-name {
    font-weight: 500;
  }
  
  /* Impact Stories Section */
  .impact-stories {
    padding: 100px 0;
    background-color: var(--white);
  }
  
  .stories-slider {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
  }
  
  .stories-wrapper {
    overflow: hidden;
  }
  
  .story-slide {
    display: flex;
    align-items: center;
    gap: 3rem;
    opacity: 0;
    position: absolute;
    top: 0;
    left: 0;
    transition: opacity 0.5s ease;
  }
  
  .story-slide.active {
    position: relative;
    opacity: 1;
  }
  
  .story-image {
    flex: 1;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
  }
  
  .story-content {
    flex: 1;
  }
  
  .story-quote {
    font-size: 1.2rem;
    font-style: italic;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
    position: relative;
  }
  
  .story-quote:before {
    content: '"';
    font-size: 4rem;
    color: var(--green-primary);
    opacity: 0.2;
    position: absolute;
    top: -20px;
    left: -20px;
  }
  
  .story-author {
    display: flex;
    align-items: center;
    gap: 1rem;
  }
  
  .author-avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    overflow: hidden;
  }
  
  .author-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
  }
  
  .author-info {
    display: flex;
    flex-direction: column;
  }
  
  .author-name {
    font-weight: 600;
    margin-bottom: 0.2rem;
  }
  
  .author-role {
    color: var(--text-secondary);
    font-size: 0.9rem;
  }
  
  .story-controls {
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    display: flex;
    justify-content: space-between;
    transform: translateY(-50%);
    z-index: 10;
    pointer-events: none;
  }
  
  .story-control {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: var(--white);
    border: none;
    box-shadow: var(--box-shadow);
    color: var(--blue-primary);
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    pointer-events: auto;
  }
  
  .story-control:hover {
    background-color: var(--green-primary);
    color: var(--white);
  }
  
  /* Join CTA Section */
  .join-cta {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--green-primary) 0%, var(--blue-primary) 100%);
    color: var(--white);
  }
  
  .cta-content {
    max-width: 700px;
    margin: 0 auto;
    text-align: center;
  }
  
  .cta-content h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
  }
  
  .cta-content p {
    margin-bottom: 2rem;
    font-size: 1.1rem;
  }
  
  .join-cta .btn-outline {
    border-color: var(--white);
    color: var(--white);
  }
  
  .join-cta .btn-outline:hover {
    background-color: var(--white);
    color: var(--green-primary);
  }
  
  .join-cta .btn-primary {
    background-color: var(--white);
    color: var(--green-primary);
  }
  
  .join-cta .btn-primary:hover {
    background-color: rgba(255, 255, 255, 0.9);
  }
  
  /* Contact Section */
  .contact-section {
    padding: 100px 0;
    background-color: var(--gray-light);
  }
  
  .contact-wrapper {
    display: flex;
    gap: 4rem;
  }
  
  .contact-form {
    flex: 1;
    background-color: var(--white);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
  }
  
  .form-group {
    margin-bottom: 1.5rem;
  }
  
  .form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
  }
  
  .form-group input,
  .form-group textarea {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid var(--gray-medium);
    border-radius: var(--border-radius);
    font-family: 'Poppins', sans-serif;
    transition: var(--transition);
  }
  
  .form-group input:focus,
  .form-group textarea:focus {
    outline: none;
    border-color: var(--green-primary);
    box-shadow: 0 0 0 2px rgba(42, 157, 143, 0.2);
  }
  
  .form-message {
    padding: 1rem;
    margin-top: 1rem;
    border-radius: var(--border-radius);
    display: none;
  }
  
  .form-message.success {
    background-color: rgba(42, 157, 143, 0.1);
    color: var(--green-primary);
    border: 1px solid var(--green-primary);
    display: block;
  }
  
  .form-message.error {
    background-color: rgba(231, 111, 81, 0.1);
    color: var(--accent-red);
    border: 1px solid var(--accent-red);
    display: block;
  }
  
  .contact-info {
    flex: 1;
  }
  
  .info-item {
    display: flex;
    align-items: center;
    margin-bottom: 2rem;
    gap: 1rem;
  }
  
  .info-item svg {
    color: var(--green-primary);
  }
  
  .info-item p {
    font-size: 1.1rem;
  }
  
  /* Footer */
  footer {
    background-color: var(--blue-primary);
    color: var(--white);
    padding-top: 4rem;
  }
  
  .footer-content {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 2rem;
    padding-bottom: 3rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }
  
  .footer-logo h3 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
  }
  
  .footer-logo span {
    color: var(--accent-yellow);
  }
  
  .footer-logo p {
    color: rgba(255, 255, 255, 0.7);
  }
  
  .footer-links {
    display: flex;
    gap: 3rem;
    flex-wrap: wrap;
  }
  
  .footer-link-group h4 {
    margin-bottom: 1.2rem;
    font-size: 1.2rem;
  }
  
  .footer-link-group ul li {
    margin-bottom: 0.7rem;
  }
  
  .footer-link-group ul li a {
    color: rgba(255, 255, 255, 0.7);
    transition: var(--transition);
  }
  
  .footer-link-group ul li a:hover {
    color: var(--accent-yellow);
  }
  
  .social-links {
    display: flex;
    gap: 1rem;
  }
  
  .social-links a {
    color: rgba(255, 255, 255, 0.7);
    transition: var(--transition);
  }
  
  .social-links a:hover {
    color: var(--accent-yellow);
  }
  
  .footer-bottom {
    padding: 1.5rem 0;
    text-align: center;
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
  }
  
  /* Responsive Design */
  @media (max-width: 992px) {
    .hero {
      padding: 140px 0 80px;
    }
    
    .hero .container {
      flex-direction: column;
    }
    
    .hero-content {
      text-align: center;
    }
    
    .hero-content h1 {
      font-size: 2.5rem;
    }
    
    .hero-content p {
      margin: 0 auto 2rem;
    }
    
    .cta-buttons {
      justify-content: center;
    }
    
    .contact-wrapper {
      flex-direction: column;
    }
    
    .footer-content {
      flex-direction: column;
      align-items: center;
      text-align: center;
    }
    
    .footer-links {
      justify-content: center;
    }
  }
  
  @media (max-width: 768px) {
    .section-header h2 {
      font-size: 2rem;
    }
    
    .steps {
      flex-direction: column;
      align-items: center;
    }
    
    nav ul {
      position: fixed;
      top: 70px;
      left: -100%;
      width: 100%;
      height: calc(100vh - 70px);
      background-color: var(--white);
      flex-direction: column;
      align-items: center;
      justify-content: center;
      transition: var(--transition);
      z-index: 999;
    }
    
    nav ul.show {
      left: 0;
    }
    
    nav ul li {
      margin: 1rem 0;
    }
    
    .menu-toggle {
      display: flex;
    }
    
    .menu-toggle.active span:nth-child(1) {
      transform: translateY(9px) rotate(45deg);
    }
    
    .menu-toggle.active span:nth-child(2) {
      opacity: 0;
    }
    
    .menu-toggle.active span:nth-child(3) {
      transform: translateY(-9px) rotate(-45deg);
    }
    
    .story-slide {
      flex-direction: column;
      text-align: center;
    }
    
    .story-author {
      justify-content: center;
    }
    
    .story-controls {
      position: static;
      margin-top: 2rem;
      transform: none;
    }
    
    .footer-link-group {
      min-width: 150px;
    }
  }
  
  @media (max-width: 576px) {
    .hero-content h1 {
      font-size: 2rem;
    }
    
    .skill-card {
      max-width: 100%;
    }
  }