/* Base Styles */
:root {
    --primary-color: #a435f0;
    --secondary-color: #80005a;
    --accent-color: #ff9900;
    --text-color: #333333;
    --text-light: #666666;
    --bg-light: #f5f8fa;
    --bg-white: #ffffff;
    --border-color: #e1e4e8;
    --success-color: #28a745;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
  }
  
  * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    
  }
  
  html {
    scroll-behavior: smooth;
  }
  
  body {
    font-family: "Roboto", sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-white);
  }
  
  .container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
  }
  
  section {
    padding: 80px 0;
  }
  
  h1,
  h2,
  h3,
  h4,
  h5,
  h6 {
    margin-bottom: 15px;
    line-height: 1.2;
  }
  
  p {
    margin-bottom: 15px;
  }
  
  a {
    text-decoration: none;
    color: var(--primary-color);
    transition: var(--transition);
  }
  
  a:hover {
    color: var(--secondary-color);
  }
  
  img {
    max-width: 100%;
    height: auto;
    display: block;
  }
  
  ul {
    list-style: none;
  }
  
  .section-header {
    text-align: center;
    margin-bottom: 50px;
  }
  
  .section-header h2 {
    font-size: 36px;
    color: var(--primary-color);
    position: relative;
    display: inline-block;
    margin-bottom: 15px;
  }
  
  .section-header h2::after {
    content: "";
    position: absolute;
    width: 60px;
    height: 3px;
    background-color: var(--accent-color);
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
  }
  
  .section-header p {
    font-size: 18px;
    color: var(--text-light);
  }
  
  /* Buttons */
  .btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: 4px;
    font-weight: 500;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    font-size: 16px;
  }
  
  .btn-primary {
    background-color: var(--primary-color);
    color: white;
  }
  
  .btn-primary:hover {
    background-color: var(--secondary-color);
    color: white;
  }
  
  .btn-secondary {
    background-color: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
  }
  
  .btn-secondary:hover {
    background-color: var(--primary-color);
    color: white;
  }
  
  .btn-outline {
    background-color: transparent;
    color: var(--primary-color);
    border: 1px solid var(--primary-color);
    padding: 8px 16px;
  }
  
  .btn-outline:hover {
    background-color: var(--primary-color);
    color: white;
  }
  
  /* Header */
  header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: white;
    box-shadow: var(--shadow);
    z-index: 1000;
    padding: 15px 0;
  }
  
  header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
  }
  
  .logo h1 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 0;
  }
  
  .logo span {
    color: var(--primary-color);
  }
  
  .nav-menu {
    display: flex;
  }
  
  .nav-menu li {
    margin-left: 30px;
    position: relative;
  }
  
  .nav-menu a {
    color: var(--text-color);
    font-weight: 500;
    position: relative;
  }
  
  .nav-menu a:hover,
  .nav-menu a.active {
    color: var(--primary-color);
  }
  
  .nav-menu a.active::after {
    content: "";
    position: absolute;
    width: 100%;
    height: 2px;
    background-color: var(--primary-color);
    bottom: -5px;
    left: 0;
  }
  
  /* Dropdown Menu Styles */
  .dropdown-icon {
    font-size: 10px;
    margin-left: 5px;
  }
  
  .dropdown {
    position: relative;
  }
  
  .dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background-color: white;
    min-width: 200px;
    box-shadow: var(--shadow);
    border-radius: 4px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all 0.3s ease;
    z-index: 100;
    padding: 10px 0;
  }
  
  .dropdown:hover > .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }
  
  .dropdown-menu li {
    margin: 0;
    width: 100%;
  }
  
  .dropdown-menu a {
    display: block;
    padding: 8px 15px;
    color: var(--text-color);
    font-weight: normal;
    white-space: nowrap;
  }
  
  .dropdown-menu a:hover {
    background-color: var(--bg-light);
  }
  
  /* Submenu Styles */
  .dropdown-submenu {
    position: relative;
  }
  
  .dropdown-submenu-menu {
    position: absolute;
    top: 0;
    left: 100%;
    background-color: white;
    min-width: 200px;
    box-shadow: var(--shadow);
    border-radius: 4px;
    opacity: 0;
    visibility: hidden;
    transform: translateX(10px);
    transition: all 0.3s ease;
    z-index: 100;
    padding: 10px 0;
  }
  
  .dropdown-submenu:hover > .dropdown-submenu-menu {
    opacity: 1;
    visibility: visible;
    transform: translateX(0);
  }
  
  .mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
  }
  
  .mobile-menu-btn span {
    display: block;
    width: 25px;
    height: 3px;
    background-color: var(--text-color);
    margin: 5px 0;
    transition: var(--transition);
  }
  
  /* Hero Section */
  .hero {
    padding-top: 150px;
    padding-bottom: 80px;
    background-color: var(--bg-light);
  }
  
  .hero .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
  }
  
  .hero-content {
    flex: 1;
    padding-right: 40px;
  }
  
  .hero-content h1 {
    font-size: 48px;
    color: var(--primary-color);
    margin-bottom: 20px;
  }
  
  .hero-content p {
    font-size: 20px;
    color: var(--text-light);
    margin-bottom: 30px;
  }
  
  .hero-buttons {
    display: flex;
    gap: 15px;
  }
  
  .hero-image {
    flex: 1;
  }
  
  /* Courses Section */
  .courses {
    background-color: var(--bg-white);
  }
  
  .filter-buttons {
    display: flex;
    justify-content: center;
    margin-bottom: 30px;
    flex-wrap: wrap;
    gap: 10px;
  }
  
  .filter-btn {
    padding: 8px 20px;
    background-color: var(--bg-light);
    border: none;
    border-radius: 30px;
    cursor: pointer;
    font-weight: 500;
    transition: var(--transition);
  }
  
  .filter-btn.active,
  .filter-btn:hover {
    background-color: var(--primary-color);
    color: white;
  }
  
  .courses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 30px;
  }
  
  .course-card {
    background-color: var(--bg-white);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
  }
  
  .course-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
  }
  
  .course-image {
    height: 200px;
    overflow: hidden;
  }
  
  .course-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
  }
  
  .course-card:hover .course-image img {
    transform: scale(1.05);
  }
  
  .course-content {
    padding: 20px;
  }
  
  .course-tag {
    display: inline-block;
    padding: 4px 10px;
    background-color: rgba(0, 102, 204, 0.1);
    color: var(--primary-color);
    border-radius: 20px;
    font-size: 14px;
    margin-bottom: 10px;
  }
  
  .course-content h3 {
    font-size: 20px;
    margin-bottom: 10px;
  }
  
  .course-details {
    display: flex;
    justify-content: space-between;
    margin: 15px 0;
    font-size: 14px;
    color: var(--text-light);
  }
  
  /* About Section */
  .about {
    background-color: var(--bg-light);
  }
  
  .about .container {
    display: flex;
    align-items: center;
    gap: 40px;
  }
  
  .about-content {
    flex: 1;
  }
  
  .about-image {
    flex: 1;
  }
  
  .stats-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 20px;
    margin-top: 30px;
  }
  
  .stat-item {
    text-align: center;
    padding: 20px;
    background-color: var(--bg-white);
    border-radius: 8px;
    box-shadow: var(--shadow);
  }
  
  .stat-item h3 {
    font-size: 36px;
    color: var(--primary-color);
    margin-bottom: 5px;
  }
  
  .stat-item p {
    font-size: 14px;
    color: var(--text-light);
    margin-bottom: 0;
  }
  
  /* Testimonials Section */
  .testimonials {
    background-color: var(--bg-white);
  }
  
  .testimonial-slider {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    overflow: hidden;
  }
  
  .testimonial-slide {
    display: none;
    animation: fadeIn 0.5s ease forwards;
  }
  
  .testimonial-slide.active {
    display: block;
  }
  
  @keyframes fadeIn {
    from {
      opacity: 0;
    }
    to {
      opacity: 1;
    }
  }
  
  .testimonial-content {
    background-color: var(--bg-light);
    padding: 30px;
    border-radius: 8px;
    box-shadow: var(--shadow);
    position: relative;
  }
  
  .testimonial-content::before {
    content: '"';
    position: absolute;
    top: 10px;
    left: 15px;
    font-size: 60px;
    color: rgba(0, 102, 204, 0.1);
    font-family: serif;
  }
  
  .testimonial-content p {
    font-size: 18px;
    font-style: italic;
    margin-bottom: 20px;
  }
  
  .testimonial-author {
    display: flex;
    align-items: center;
  }
  
  .testimonial-author img {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    margin-right: 15px;
  }
  
  .testimonial-author h4 {
    font-size: 18px;
    margin-bottom: 5px;
  }
  
  .testimonial-author p {
    font-size: 14px;
    color: var(--text-light);
    margin-bottom: 0;
    font-style: normal;
  }
  
  .testimonial-controls {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: 30px;
  }
  
  .prev-btn,
  .next-btn {
    background: none;
    border: none;
    font-size: 24px;
    color: var(--primary-color);
    cursor: pointer;
    padding: 0 15px;
  }
  
  .testimonial-dots {
    display: flex;
    gap: 8px;
    margin: 0 15px;
  }
  
  .dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: #ccc;
    cursor: pointer;
    transition: var(--transition);
  }
  
  .dot.active {
    background-color: var(--primary-color);
  }
  
  /* Contact Section */
  .contact {
    background-color: var(--bg-light);
  }
  
  .contact-container {
    display: flex;
    gap: 40px;
  }
  
  .contact-info,
  .contact-form {
    flex: 1;
  }
  
  .info-item {
    display: flex;
    margin-bottom: 30px;
  }
  
  .info-item i {
    font-size: 24px;
    color: var(--primary-color);
    margin-right: 15px;
  }
  
  .info-item h3 {
    font-size: 18px;
    margin-bottom: 5px;
  }
  
  .info-item p {
    color: var(--text-light);
    margin-bottom: 0;
  }
  
  .form-group {
    margin-bottom: 20px;
  }
  
  .form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
  }
  
  .form-group input,
  .form-group select,
  .form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-family: inherit;
    font-size: 16px;
    transition: var(--transition);
  }
  
  .form-group input:focus,
  .form-group select:focus,
  .form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.1);
  }
  
  /* Footer */
  footer {
    background-color: #003366;
    color: white;
    padding: 60px 0 20px;
  }
  
  .footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
  }
  
  .footer-logo h2 {
    font-size: 24px;
    margin-bottom: 10px;
  }
  
  .footer-logo span {
    color: var(--accent-color);
  }
  
  .footer-links h3,
  .footer-courses h3,
  .footer-newsletter h3 {
    font-size: 18px;
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 10px;
  }
  
  .footer-links h3::after,
  .footer-courses h3::after,
  .footer-newsletter h3::after {
    content: "";
    position: absolute;
    width: 40px;
    height: 2px;
    background-color: var(--accent-color);
    bottom: 0;
    left: 0;
  }
  
  .footer-links ul,
  .footer-courses ul {
    display: flex;
    flex-direction: column;
    gap: 10px;
  }
  
  .footer-links a,
  .footer-courses a {
    color: #ccc;
    transition: var(--transition);
  }
  
  .footer-links a:hover,
  .footer-courses a:hover {
    color: white;
    padding-left: 5px;
  }
  
  .newsletter-form {
    display: flex;
    margin-top: 20px;
  }
  
  .newsletter-form input {
    flex: 1;
    padding: 12px;
    border: none;
    border-radius: 4px 0 0 4px;
  }
  
  .newsletter-form button {
    border-radius: 0 4px 4px 0;
  }
  
  .footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
  }
  
  .social-links {
    display: flex;
    gap: 15px;
  }
  
  .social-links a {
    color: white;
    font-size: 18px;
    transition: var(--transition);
  }
  
  .social-links a:hover {
    color: var(--accent-color);
  }
  
  /* Icons (using pseudo-elements for demo) */
  .icon-clock::before {
    content: "⏱️";
  }
  
  .icon-level::before {
    content: "📊";
  }
  
  .icon-location::before {
    content: "📍";
  }
  
  .icon-phone::before {
    content: "📞";
  }
  
  .icon-email::before {
    content: "✉️";
  }
  
  .icon-facebook::before {
    content: "fb";
  }
  
  .icon-twitter::before {
    content: "tw";
  }
  
  .icon-linkedin::before {
    content: "in";
  }
  
  .icon-instagram::before {
    content: "ig";
  }
  
  /* Responsive Styles */
  @media (max-width: 992px) {
    .hero .container,
    .about .container {
      flex-direction: column;
    }
  
    .hero-content,
    .about-content {
      padding-right: 0;
      margin-bottom: 40px;
    }
  
    .contact-container {
      flex-direction: column;
    }
  }
  
  @media (max-width: 768px) {
    .mobile-menu-btn {
      display: block;
    }
  
    .nav-menu {
      position: absolute;
      top: 100%;
      left: 0;
      width: 100%;
      background-color: white;
      flex-direction: column;
      padding: 20px;
      box-shadow: 0 10px 15px rgba(0, 0, 0, 0.1);
      transform: translateY(-150%);
      transition: var(--transition);
      opacity: 0;
      visibility: hidden;
    }
  
    .nav-menu.active {
      transform: translateY(0);
      opacity: 1;
      visibility: visible;
    }
  
    .nav-menu li {
      margin: 15px 0;
    }
  
    .dropdown-menu,
    .dropdown-submenu-menu {
      position: static;
      opacity: 1;
      visibility: visible;
      transform: none;
      box-shadow: none;
      width: 100%;
      padding: 0;
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease;
    }
  
    .dropdown:hover > .dropdown-menu,
    .dropdown-submenu:hover > .dropdown-submenu-menu {
      max-height: 500px;
    }
  
    .dropdown-menu a,
    .dropdown-submenu-menu a {
      padding-left: 30px;
    }
  
    .dropdown-submenu-menu a {
      padding-left: 45px;
    }
  
    .hero-content h1 {
      font-size: 36px;
    }
  
    .section-header h2 {
      font-size: 30px;
    }
  
    .courses-grid {
      grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    }
  }
  
  @media (max-width: 576px) {
    section {
      padding: 60px 0;
    }
  
    .hero {
      padding-top: 120px;
    }
  
    .hero-buttons {
      flex-direction: column;
      gap: 10px;
    }
  
    .hero-content h1 {
      font-size: 30px;
    }
  
    .hero-content p {
      font-size: 18px;
    }
  
    .footer-bottom {
      flex-direction: column;
      gap: 15px;
      text-align: center;
    }
  }