/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  
  body {
    font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    line-height: 1.6;
    color: #0f172a;
    background-color: #ffffff;
  }
  
  .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
  }
  
  /* Header */
  .header {
    position: sticky;
    top: 0;
    z-index: 50;
    width: 100%;
    border-bottom: 1px solid #e2e8f0;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
  }
  
  .header-content {
    display: flex;
    height: 4rem;
    align-items: center;
    justify-content: space-between;
  }
  
  .logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
  }
  
  .logo-icon {
    height: 1.5rem;
    width: 1.5rem;
    color: #3b82f6;
  }
  
  .logo-text {
    font-size: 1.25rem;
    font-weight: 700;
    color: #0f172a;
  }
  
  .nav {
    display: none;
    align-items: center;
    gap: 1.5rem;
  }
  
  @media (min-width: 768px) {
    .nav {
      display: flex;
    }
  }
  
  .nav-link {
    font-size: 0.875rem;
    font-weight: 500;
    color: #64748b;
    text-decoration: none;
    transition: color 0.2s;
  }
  
  .nav-link:hover {
    color: #3b82f6;
  }
  
  .mobile-menu-btn {
    display: flex;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
  }
  
  @media (min-width: 768px) {
    .mobile-menu-btn {
      display: none;
    }
  }
  
  .mobile-menu-btn span {
    width: 20px;
    height: 2px;
    background-color: #0f172a;
    transition: all 0.3s;
  }
  
  /* Buttons */
  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 0.375rem;
    font-size: 0.875rem;
    font-weight: 500;
    transition: all 0.2s;
    cursor: pointer;
    border: none;
    text-decoration: none;
  }
  
  .btn-sm {
    height: 2rem;
    padding: 0 0.75rem;
  }
  
  .btn-lg {
    height: 2.75rem;
    padding: 0 2rem;
    font-size: 1rem;
  }
  
  .btn-primary {
    background-color: #3b82f6;
    color: white;
  }
  
  .btn-primary:hover {
    background-color: #2563eb;
  }
  
  .btn-secondary {
    background-color: white;
    color: #3b82f6;
  }
  
  .btn-secondary:hover {
    background-color: #f8fafc;
  }
  
  .btn-outline {
    background-color: transparent;
    border: 1px solid #e2e8f0;
    color: #64748b;
  }
  
  .btn-outline:hover {
    background-color: #f8fafc;
    color: #0f172a;
  }
  
  .btn-white {
    border-color: rgba(255, 255, 255, 0.2);
    color: white;
    background-color: rgba(0, 0, 0, 0.4);
  }
  
  .btn-white:hover {
    background-color: rgba(0, 0, 0, 0.6);
    color: white;
  }
  
  /* Hero Section */
  .hero {
    position: relative;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
  }
  
  .hero-overlay {
    position: absolute;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.8);
    z-index: 10;
  }
  
  .hero-image {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
  }
  
  .hero-content {
    position: relative;
    z-index: 20;
    text-align: center;
    max-width: 64rem;
    margin: 0 auto;
    padding: 0 1rem;
  }
  
  .hero-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: white;
    margin-bottom: 1.5rem;
    text-wrap: balance;
  }
  
  @media (min-width: 768px) {
    .hero-title {
      font-size: 3.75rem;
    }
  }
  
  .hero-subtitle {
    font-size: 1.25rem;
    color: white;
    margin-bottom: 2rem;
    text-wrap: pretty;
  }
  
  @media (min-width: 768px) {
    .hero-subtitle {
      font-size: 1.5rem;
    }
  }
  
  .hero-buttons {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    justify-content: center;
  }
  
  @media (min-width: 640px) {
    .hero-buttons {
      flex-direction: row;
    }
  }
  
  /* Sections */
  .section {
    padding: 6rem 0;
  }
  
  .section-muted {
    background-color: rgba(248, 250, 252, 0.3);
  }
  
  .section-header {
    text-align: center;
    margin-bottom: 4rem;
  }
  
  .section-title {
    font-size: 1.875rem;
    font-weight: 700;
    color: #0f172a;
    margin-bottom: 1rem;
  }
  
  @media (min-width: 768px) {
    .section-title {
      font-size: 2.25rem;
    }
  }
  
  .section-subtitle {
    font-size: 1.125rem;
    color: #64748b;
    max-width: 32rem;
    margin: 0 auto;
    text-wrap: pretty;
  }
  
  /* Cards */
  .cards-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  @media (min-width: 768px) {
    .cards-grid {
      grid-template-columns: repeat(2, 1fr);
    }
  }
  
  @media (min-width: 1024px) {
    .cards-grid {
      grid-template-columns: repeat(3, 1fr);
    }
  }
  
  .card {
    background-color: white;
    border-radius: 0.5rem;
    border: 1px solid #e2e8f0;
    overflow: hidden;
    transition: box-shadow 0.3s;
  }
  
  .card:hover {
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  }
  
  .card-image-container {
    position: relative;
    overflow: hidden;
  }
  
  .card-image {
    width: 100%;
    height: 12rem;
    object-fit: cover;
    transition: transform 0.3s;
  }
  
  .card:hover .card-image {
    transform: scale(1.05);
  }
  
  .badge {
    position: absolute;
    top: 1rem;
    left: 1rem;
    background-color: #3b82f6;
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 500;
  }
  
  .card-header {
    padding: 1.5rem 1.5rem 0;
  }
  
  .card-title {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.125rem;
    font-weight: 600;
    color: #0f172a;
    margin-bottom: 0.5rem;
  }
  
  .card-icon {
    height: 1.25rem;
    width: 1.25rem;
    color: #3b82f6;
  }
  
  .card-description {
    color: #64748b;
    font-size: 0.875rem;
  }
  
  .card-content {
    padding: 0 1.5rem 1.5rem;
  }
  
  .card-content p {
    font-size: 0.875rem;
    color: #64748b;
  }
  
  /* Accordion */
  .accordion-container {
    max-width: 64rem;
    margin: 0 auto;
  }
  
  .accordion {
    display: flex;
    flex-direction: column;
    gap: 1rem;
  }
  
  .accordion-item {
    background-color: white;
    border-radius: 0.5rem;
    border: 1px solid #e2e8f0;
    overflow: hidden;
  }
  
  .accordion-trigger {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.5rem;
    background: none;
    border: none;
    cursor: pointer;
    text-align: left;
  }
  
  .accordion-trigger-content {
    display: flex;
    align-items: center;
    gap: 0.75rem;
  }
  
  .accordion-icon {
    height: 1.25rem;
    width: 1.25rem;
    color: #3b82f6;
  }
  
  .accordion-trigger span {
    font-weight: 600;
    color: #0f172a;
  }
  
  .chevron {
    height: 1rem;
    width: 1rem;
    color: #64748b;
    transition: transform 0.2s;
  }
  
  .accordion-item.active .chevron {
    transform: rotate(180deg);
  }
  
  .accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
  }
  
  .accordion-item.active .accordion-content {
    max-height: 500px;
  }
  
  .accordion-body {
    padding: 0 1.5rem 1.5rem;
  }
  
  .requirement-section {
    margin-bottom: 1rem;
  }
  
  .requirement-section:last-child {
    margin-bottom: 0;
  }
  
  .requirement-section h4 {
    font-weight: 500;
    margin-bottom: 0.5rem;
    color: #0f172a;
  }
  
  .requirement-section ul {
    list-style: disc;
    list-style-position: inside;
    color: #64748b;
  }
  
  .requirement-section ul li {
    margin-bottom: 0.25rem;
  }
  
  .requirement-section p {
    color: #64748b;
  }
  
  /* Learning Section */
  .learning-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    max-width: 96rem;
    margin: 0 auto;
  }
  
  @media (min-width: 768px) {
    .learning-grid {
      grid-template-columns: repeat(2, 1fr);
    }
  }
  
  .learning-card {
    background-color: white;
    border: 1px solid #e2e8f0;
    border-radius: 0.5rem;
    padding: 2rem;
  }
  
  .learning-header {
    padding-bottom: 1rem;
  }
  
  .learning-icon-title {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
  }
  
  .learning-icon {
    height: 2rem;
    width: 2rem;
    color: #3b82f6;
  }
  
  .learning-icon-title h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: #0f172a;
  }
  
  .learning-description {
    font-size: 1rem;
    color: #64748b;
  }
  
  .learning-content {
    display: flex;
    flex-direction: column;
    gap: 1rem;
  }
  
  .learning-item h4 {
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: #0f172a;
  }
  
  .learning-item p {
    font-size: 0.875rem;
    color: #64748b;
  }
  
  /* Research Section */
  .research-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
    max-width: 112rem;
    margin: 0 auto;
  }
  
  @media (min-width: 768px) {
    .research-grid {
      grid-template-columns: repeat(2, 1fr);
    }
  }
  
  @media (min-width: 1024px) {
    .research-grid {
      grid-template-columns: repeat(4, 1fr);
    }
  }
  
  .research-card {
    background-color: white;
    border: 1px solid #e2e8f0;
    border-radius: 0.5rem;
    padding: 1.5rem;
    text-align: center;
    transition: box-shadow 0.3s;
  }
  
  .research-card:hover {
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  }
  
  .research-icon-container {
    width: 4rem;
    height: 4rem;
    background-color: rgba(59, 130, 246, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
  }
  
  .research-icon {
    height: 2rem;
    width: 2rem;
    color: #3b82f6;
  }
  
  .research-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: #0f172a;
    margin-bottom: 0.5rem;
  }
  
  .research-description {
    font-size: 0.875rem;
    color: #64748b;
  }
  
  .research-cta {
    margin-top: 4rem;
    text-align: center;
  }
  
  /* CTA Section */
  .cta-section {
    padding: 6rem 0;
    background-color: #3b82f6;
    color: white;
  }
  
  .cta-content {
    text-align: center;
  }
  
  .cta-title {
    font-size: 1.875rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    text-wrap: balance;
  }
  
  @media (min-width: 768px) {
    .cta-title {
      font-size: 2.25rem;
    }
  }
  
  .cta-subtitle {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.9;
    max-width: 32rem;
    margin-left: auto;
    margin-right: auto;
    text-wrap: pretty;
  }
  
  .cta-buttons {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    justify-content: center;
  }
  
  @media (min-width: 640px) {
    .cta-buttons {
      flex-direction: row;
    }
  }
  
  /* Footer */
  .footer {
    background-color: white;
    border-top: 1px solid #e2e8f0;
    padding: 3rem 0;
  }
  
  .footer-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  @media (min-width: 768px) {
    .footer-content {
      grid-template-columns: repeat(4, 1fr);
    }
  }
  
  .footer-section:first-child {
    grid-column: span 1;
  }
  
  @media (min-width: 768px) {
    .footer-section:first-child {
      grid-column: span 1;
    }
  }
  
  .footer-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
  }
  
  .footer-description {
    font-size: 0.875rem;
    color: #64748b;
  }
  
  .footer-title {
    font-weight: 600;
    margin-bottom: 1rem;
    color: #0f172a;
  }
  
  .footer-links {
    list-style: none;
  }
  
  .footer-links li {
    margin-bottom: 0.5rem;
  }
  
  .footer-links a {
    font-size: 0.875rem;
    color: #64748b;
    text-decoration: none;
    transition: color 0.2s;
  }
  
  .footer-links a:hover {
    color: #3b82f6;
  }
  
  .footer-bottom {
    border-top: 1px solid #e2e8f0;
    margin-top: 2rem;
    padding-top: 2rem;
    text-align: center;
  }
  
  .footer-bottom p {
    font-size: 0.875rem;
    color: #64748b;
  }
  
  /* Responsive Design */
  @media (max-width: 767px) {
    .hero-title {
      font-size: 2rem;
    }
  
    .hero-subtitle {
      font-size: 1.125rem;
    }
  
    .section {
      padding: 4rem 0;
    }
  
    .section-title {
      font-size: 1.5rem;
    }
  }