/* Base Styles */
:root {
    --primary-color: #4f46e5;
    --secondary-color: #3730a3;
    --text-color: #1f2937;
    --light-gray: #f3f4f6;
    --dark-gray: #6b7280;
    --white: #ffffff;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  }
  
  * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', sans-serif;
  }
  
  body {
    line-height: 1.6;
    color: var(--text-color);
  }
  
  .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
  }
  
  /* Courses Banner */
  .courses-banner {
    position: relative;
    height: 60vh;
    background: linear-gradient(rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0.6)),
        url('images/bgimg/coursebg.jpg') center/cover;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 4rem;
    color: white;
  }
  
  .courses-banner-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
  }
  
  .courses-banner-content h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    font-weight: 700;
  }
  
  .courses-banner-content p {
    font-size: 1.125rem;
    margin-bottom: 2rem;
    opacity: 0.9;
  }
  
  .search-filter-container {
    max-width: 600px;
    margin: 0 auto;
  }
  
  .search-box {
    display: flex;
    gap: 0.5rem;
  }
  
  #course-search {
    flex: 1;
    padding: 1rem;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
  }
  
  .search-btn {
    padding: 1rem 2rem;
    background: var(--white);
    border: none;
    border-radius: 8px;
    color: var(--primary-color);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
  }
  
  .search-btn:hover {
    background: var(--light-gray);
  }
  
  /* Courses Filters */
  .courses-filters {
    margin-bottom: 3rem;
  }
  
  .filters-container {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
    align-items: flex-end;
  }
  
  .filter-group {
    flex: 1 1 200px;
  }
  
  .filter-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
  }
  
  .filter-group select {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid #e5e7eb;
    border-radius: 6px;
    background: var(--white);
    font-size: 1rem;
  }
  
  .btn {
    padding: 0.75rem 1.5rem;
    border-radius: 6px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
  }
  
  .btn-primary {
    background: var(--primary-color);
    color: var(--white);
    border: none;
  }
  
  .btn-primary:hover {
    background: var(--secondary-color);
  }
  
  .btn-outline {
    background: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
  }
  
  .btn-outline:hover {
    background: var(--primary-color);
    color: var(--white);
  }
  
  /* Courses List */
  .courses-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    gap: 1rem;
  }
  
  .courses-header h2 {
    font-size: 1.5rem;
    font-weight: 700;
  }
  
  .sort-options {
    display: flex;
    align-items: center;
    gap: 1rem;
  }
  
  .sort-options select {
    padding: 0.5rem 1rem;
    border: 1px solid #e5e7eb;
    border-radius: 6px;
  }
  
  .courses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
  }
  
  .course-card {
    background: var(--white);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease;
  }
  
  .course-card:hover {
    transform: translateY(-5px);
  }
  
  .course-image {
    position: relative;
    height: 200px;
  }
  
  .course-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
  }
  
  .course-badge {
    position: absolute;
    top: 1rem;
    left: 1rem;
    background: var(--primary-color);
    color: var(--white);
    padding: 0.25rem 0.75rem;
    border-radius: 4px;
    font-size: 0.875rem;
    font-weight: 500;
  }
  
  .course-content {
    padding: 1.5rem;
  }
  
  .course-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
  }
  
  .course-category {
    font-size: 0.875rem;
    color: var(--dark-gray);
    text-transform: uppercase;
    letter-spacing: 0.05em;
  }
  
  .course-rating {
    display: flex;
    align-items: center;
    gap: 0.5rem;
  }
  
  .stars {
    color: #f59e0b;
  }
  
  .rating-count {
    font-size: 0.875rem;
    color: var(--dark-gray);
  }
  
  .course-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
  }
  
  .course-description {
    color: var(--dark-gray);
    font-size: 0.875rem;
    margin-bottom: 1.5rem;
    line-height: 1.5;
  }
  
  .course-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
  }
  
  .course-instructor {
    display: flex;
    align-items: center;
    gap: 0.5rem;
  }
  
  .course-instructor img {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    object-fit: cover;
  }
  
  .course-price {
    font-weight: 600;
    color: var(--primary-color);
  }
  
  .original-price {
    text-decoration: line-through;
    color: var(--dark-gray);
    margin-right: 0.5rem;
    font-size: 0.875rem;
  }
  
  /* Pagination */
  .pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    margin-top: 2rem;
  }
  
  .pagination-btn {
    padding: 0.5rem 1rem;
    border: 1px solid #e5e7eb;
    background: var(--white);
    border-radius: 6px;
    cursor: pointer;
  }
  
  .pagination-btn:hover:not(:disabled) {
    background: var(--light-gray);
  }
  
  .pagination-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
  }
  
  .page-numbers {
    display: flex;
    gap: 0.5rem;
  }
  
  .page-number {
    padding: 0.5rem 1rem;
    border: 1px solid #e5e7eb;
    background: var(--white);
    border-radius: 6px;
    cursor: pointer;
  }
  
  .page-number.active {
    background: var(--primary-color);
    color: var(--white);
    border-color: var(--primary-color);
  }
  
  /* Responsive Design */
  @media (max-width: 768px) {
    .filters-container {
      flex-direction: column;
    }
  
    .filter-group {
      width: 100%;
    }
  
    .courses-header {
      flex-direction: column;
      align-items: flex-start;
    }
  
    .courses-grid {
      grid-template-columns: 1fr;
    }
  
    .search-box {
      flex-direction: column;
    }
  
    .search-btn {
      width: 100%;
    }
  }
  
  .no-courses-found {
    text-align: center;
    padding: 4rem 0;
    grid-column: 1 / -1;
  }
  
  .no-courses-found h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
  }
  
  .no-courses-found p {
    color: var(--dark-gray);
  }