:root {
      --primary-color: #0d6efd;
      --secondary-color: #6c757d;
      --success-color: #198754;
      --light-color: #f8f9fa;
      --dark-color: #212529;
    }
    
    body {
      font-family: 'Poppins', sans-serif;
      line-height: 1.6;
    }
    
    main {
      margin-top: 80px;
    }
    /* Activity Hero Section */
    .activity-hero {
      background: linear-gradient(rgba(13, 110, 253, 0.8), rgba(13, 110, 253, 0.9)), url('https://via.placeholder.com/1920x600/0d6efd/ffffff?text=GPN+Activities') center/cover no-repeat;
      color: white;
      padding: 100px 0;
      text-align: center;
    }
    
    @media (max-width: 768px) {
      .activity-hero {
        padding: 60px 0;
      }
      .activity-hero h1 {
        font-size: 2rem;
      }
    }
    
    /* Counter Section */
    .counter-section {
      background: linear-gradient(135deg, #0d6efd 0%, #0a58ca 100%);
      color: white;
      padding: 60px 0;
      text-align: center;
    }
    
    .counter-item {
      margin-bottom: 30px;
    }
    
    .counter-number {
      font-size: 3rem;
      font-weight: 700;
      margin-bottom: 10px;
    }
    
    .counter-label {
      font-size: 1.2rem;
      opacity: 0.9;
    }
    
    @media (max-width: 576px) {
      .counter-number {
        font-size: 2.5rem;
      }
      .counter-label {
        font-size: 1rem;
      }
    }
    
    /* Activity Filter */
    .activity-filter {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 10px;
      margin-bottom: 40px;
    }
    
    .filter-btn {
      padding: 8px 16px;
      border: 1px solid var(--primary-color);
      background: transparent;
      color: var(--primary-color);
      border-radius: 30px;
      transition: all 0.3s ease;
      font-size: 0.9rem;
    }
    
    .filter-btn:hover, .filter-btn.active {
      background: var(--primary-color);
      color: white;
    }
    
    @media (max-width: 576px) {
      .activity-filter {
        gap: 5px;
      }
      .filter-btn {
        padding: 6px 12px;
        font-size: 0.8rem;
      }
    }
    
    /* Activity Cards */
    .activity-card {
      background: white;
      border-radius: 10px;
      overflow: hidden;
      box-shadow: 0 5px 15px rgba(0,0,0,0.1);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
      height: 100%;
      margin-bottom: 30px;
    }
    
    .activity-card:hover {
      transform: translateY(-10px);
      box-shadow: 0 15px 30px rgba(0,0,0,0.15);
    }
    
    .activity-img-container {
      height: 200px;
      background-color: #e9ecef;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--secondary-color);
    }
    
    .activity-content {
      padding: 25px;
    }
    
    .activity-icon {
      font-size: 2rem;
      color: var(--primary-color);
      margin-bottom: 15px;
      display: block;
    }
    
    .activity-title {
      font-size: 1.5rem;
      margin-bottom: 15px;
      color: var(--dark-color);
    }
    
    .activity-desc {
      color: var(--secondary-color);
      margin-bottom: 20px;
    }
    
    .activity-features {
      padding-left: 20px;
      margin-bottom: 20px;
    }
    
    .activity-features li {
      margin-bottom: 8px;
      color: var(--secondary-color);
    }
    
    @media (max-width: 768px) {
      .activity-card {
        margin-bottom: 20px;
      }
      .activity-content {
        padding: 20px;
      }
      .activity-title {
        font-size: 1.3rem;
      }
    }
    
    /* Activity Modal */
    .activity-modal {
      display: none;
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background-color: rgba(0,0,0,0.5);
      z-index: 1050;
      overflow-y: auto;
    }
    
    .activity-modal-content {
      background-color: white;
      margin: 5% auto;
      width: 90%;
      max-width: 800px;
      border-radius: 10px;
      box-shadow: 0 5px 15px rgba(0,0,0,0.2);
      position: relative;
    }
    
    .activity-modal-header {
      padding: 20px;
      border-bottom: 1px solid #dee2e6;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    
    .activity-modal-title {
      display: flex;
      align-items: center;
      gap: 10px;
      margin: 0;
    }
    
    .activity-modal-icon {
      font-size: 1.5rem;
      color: var(--primary-color);
    }
    
    .activity-modal-close {
      background: none;
      border: none;
      font-size: 1.5rem;
      cursor: pointer;
    }
    
    .activity-modal-body {
      padding: 20px;
    }
    
    .activity-modal-features {
      margin-bottom: 20px;
    }
    
    .activity-modal-actions {
      display: flex;
      gap: 10px;
      flex-wrap: wrap;
    }
    
    @media (max-width: 576px) {
      .activity-modal-content {
        margin: 10% auto;
        width: 95%;
      }
      .activity-modal-header {
        padding: 15px;
      }
      .activity-modal-body {
        padding: 15px;
      }
      .activity-modal-actions {
        flex-direction: column;
      }
      .activity-modal-actions .btn {
        width: 100%;
      }
    }
    
    /* Gallery Section */
    .gallery-section {
      background-color: var(--light-color);
    }
    
    .gallery-item {
      position: relative;
      border-radius: 10px;
      overflow: hidden;
      box-shadow: 0 5px 15px rgba(0,0,0,0.1);
      margin-bottom: 30px;
    }
    
    .gallery-item a {
      display: block;
    }
    
    .activity-img-container img,
.placeholder-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 0; /* अगर rounded चाहिए तो बदल सकते हैं */
}

    
    .gallery-overlay {
      position: absolute;
      bottom: 0;
      left: 0;
      right: 0;
      background: linear-gradient(transparent, rgba(0,0,0,0.7));
      color: white;
      padding: 20px;
      transform: translateY(100%);
      transition: transform 0.3s ease;
    }
    
    .gallery-item:hover .gallery-overlay {
      transform: translateY(0);
    }
    
    .gallery-category {
      font-size: 0.8rem;
      text-transform: uppercase;
      margin-bottom: 5px;
      opacity: 0.8;
    }
    
    .gallery-title {
      font-size: 1.1rem;
      font-weight: 500;
    }
    
    @media (max-width: 768px) {
      .gallery-overlay {
        transform: translateY(0);
        background: rgba(0,0,0,0.7);
      }
    }
    
    /* Section Title */
    .section-title {
      position: relative;
      display: inline-block;
      margin-bottom: 20px;
      font-weight: 600;
    }
    
    .section-title:after {
      content: '';
      position: absolute;
      bottom: -10px;
      left: 0;
      width: 50px;
      height: 3px;
      background-color: var(--primary-color);
    }