/* Base Styles */
:root {
    --primary: #3b82f6;
    --primary-dark: #2563eb;
    --primary-light: #93c5fd;
    --primary-bg: #eff6ff;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    --white: #ffffff;
    --black: #000000;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --radius: 0.5rem;
  }
  
  * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  
  body {
    font-family: 'Inter', sans-serif;
    font-size: 16px;
    line-height: 1.5;
    color: var(--gray-700);
    background-color: var(--gray-50);
  }
  
  h1, h2, h3, h4, h5, h6 {
    font-family: 'Poppins', sans-serif;
    font-weight: 600;
    line-height: 1.2;
    color: var(--gray-900);
  }
  
  a {
    text-decoration: none;
    color: var(--primary);
    transition: color 0.3s ease;
  }
  
  a:hover {
    color: var(--primary-dark);
  }
  
  img {
    max-width: 100%;
    height: auto;
  }
  
  .container {
    width: 100%;
    max-width: 1200px;
    padding: 0 1rem;
    margin: 0 auto;
  }
  
  .sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
  }
  
  /* Button Styles */
  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.5rem 1rem;
    border-radius: var(--radius);
    font-weight: 500;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
    background-color: var(--primary);
    color: var(--white);
  }
  
  .btn:hover {
    background-color: var(--primary-dark);
    color: var(--white);
  }
  
  .btn-primary {
    background-color: var(--primary);
    color: var(--white);
  }
  
  .btn-outline {
    background-color: transparent;
    color: var(--primary);
    border: 1px solid var(--primary);
  }
  
  .btn-outline:hover {
    background-color: var(--primary);
    color: var(--white);
  }
  
  .btn-lg {
    padding: 0.75rem 1.5rem;
    font-size: 1.125rem;
  }
  
  .btn-block {
    display: block;
    width: 100%;
  }
  
  .btn i {
    margin-right: 0.5rem;
  }
  
  /* Navbar Styles */
  .navbar {
    position: sticky;
    top: 0;
    z-index: 50;
    background-color: var(--white);
    box-shadow: var(--shadow-sm);
  }
  
  .navbar-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 4rem;
  }
  
  .navbar-logo {
    font-family: 'Poppins', sans-serif;
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--primary);
  }
  
  .navbar-menu {
    display: none;
  }
  
  .navbar-link {
    padding: 0.5rem 0.75rem;
    color: var(--gray-700);
    font-weight: 500;
    font-size: 0.875rem;
  }
  
  .navbar-link:hover {
    color: var(--primary);
  }
  
  .navbar-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0.5rem;
    background: transparent;
    border: none;
    cursor: pointer;
    color: var(--gray-500);
  }
  
  .navbar-toggle:hover {
    color: var(--gray-900);
  }
  
  /* Mobile Menu */
  .navbar-menu.active {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 4rem;
    left: 0;
    right: 0;
    background-color: var(--white);
    padding: 0.5rem 0;
    box-shadow: var(--shadow-md);
  }
  
  .navbar-menu.active .navbar-link {
    display: block;
    padding: 0.75rem 1.5rem;
  }
  
  /* Hero Section */
  .hero {
    position: relative;
    background: linear-gradient(to bottom right, var(--primary-dark), var(--primary));
    color: var(--white);
    padding: 5rem 0 8rem;
    text-align: center;
  }
  
  .hero-content {
    max-width: 800px;
    margin: 0 auto;
  }
  
  .hero-title {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    animation: fadeIn 0.8s ease-out;
  }
  
  .hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    color: rgba(255, 255, 255, 0.9);
    animation: fadeIn 0.8s ease-out 0.2s forwards;
    opacity: 0;
  }
  
  .hero-buttons {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    max-width: 400px;
    margin: 0 auto;
    animation: fadeIn 0.8s ease-out 0.4s forwards;
    opacity: 0;
  }
  
  .hero .btn {
    background-color: var(--white);
    color: var(--primary-dark);
    border: 2px solid var(--white);
  }
  
  .hero .btn:hover {
    background-color: transparent;
    color: var(--white);
  }
  
  .scroll-indicator {
    position: absolute;
    bottom: 1rem;
    left: 50%;
    transform: translateX(-50%);
    display: none;
  }
  
  .scroll-indicator a {
    display: flex;
    flex-direction: column;
    align-items: center;
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.875rem;
  }
  
  .scroll-indicator i {
    animation: bounce 2s infinite;
  }
  
  /* Section Styles */
  section {
    padding: 4rem 0;
  }
  
  section:nth-child(even) {
    background-color: var(--gray-50);
  }
  
  section:nth-child(odd) {
    background-color: var(--white);
  }
  
  .section-header {
    text-align: center;
    margin-bottom: 3rem;
  }
  
  .section-title {
    font-size: 2rem;
    margin-bottom: 1rem;
  }
  
  .section-divider {
    height: 4px;
    width: 5rem;
    background-color: var(--primary);
    margin: 0 auto 1.5rem;
  }
  
  .section-description {
    max-width: 600px;
    margin: 0 auto;
    color: var(--gray-600);
  }
  
  /* Card Styles */
  .card {
    background-color: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    height: 100%;
    transition: box-shadow 0.3s ease;
  }
  
  .card:hover {
    box-shadow: var(--shadow-xl);
  }
  
  .card-content {
    padding: 1.5rem;
  }
  
  .card-header {
    display: flex;
    flex-direction: column;
    margin-bottom: 1rem;
  }
  
  .card-title {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
  }
  
  .card-subtitle {
    font-size: 1.125rem;
    margin-top: 2rem;
    margin-bottom: 1rem;
  }
  
  .card-period {
    color: var(--primary-dark);
    font-weight: 500;
  }
  
  .card-text {
    color: var(--gray-600);
    margin-bottom: 1rem;
  }
  
  /* About Section */
  .about-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .about-card {
    margin-bottom: 2rem;
  }
  
  /* Experience Section */
  .experience-cards,
  .courses-cards {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    margin-bottom: 4rem;
  }
  
  .certification-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
  }
  
  .certification-item {
    display: flex;
    align-items: center;
  }
  
  .certification-dot {
    width: 0.5rem;
    height: 0.5rem;
    background-color: var(--primary);
    border-radius: 50%;
    margin-right: 0.75rem;
  }
  
  /* Tags */
  .tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
  }
  
  .tag {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background-color: var(--primary-bg);
    color: var(--primary-dark);
    border: 1px solid var(--primary-light);
    border-radius: var(--radius);
    font-size: 0.75rem;
  }
  
  /* Skills Section */
  .skills-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .skills-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
  }
  
  .skill-item {
    width: 100%;
  }
  
  .skill-info {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.25rem;
  }
  
  .skill-name {
    font-weight: 500;
    color: var(--gray-700);
  }
  
  .skill-percentage {
    color: var(--gray-500);
  }
  
  .skill-bar {
    height: 0.5rem;
    background-color: var(--gray-200);
    border-radius: 999px;
    overflow: hidden;
  }
  
  .skill-progress {
    height: 100%;
    background-color: var(--primary);
    border-radius: 999px;
  }
  
  /* Projects Section */
  .projects-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .project-card {
    height: 100%;
    display: flex;
    flex-direction: column;
    overflow: hidden;
  }
  
  .project-image {
    height: 12rem;
    overflow: hidden;
    background-color: var(--gray-100);
  }
  
  .project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    transition: transform 0.3s ease;
  }
  
  .project-card:hover .project-image img {
    transform: scale(1.05);
  }
  
  .project-content {
    padding: 1.5rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
  }
  
  .project-description {
    color: var(--gray-600);
    margin-bottom: 1rem;
    flex-grow: 1;
    height: 6rem;
    overflow: hidden;
  }
  
  .project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1rem;
  }
  
  .project-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    padding-top: 0;
  }
  
  .project-links {
    display: flex;
    gap: 0.5rem;
  }
  
  .text-center {
    text-align: center;
  }
  
  .mt-12 {
    margin-top: 3rem;
  }
  
  /* Contact Section */
  .contact-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .contact-info {
    height: 100%;
  }
  
  .contact-items {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-bottom: 2rem;
  }
  
  .contact-item {
    display: flex;
    align-items: center;
  }
  
  .contact-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 3rem;
    height: 3rem;
    background-color: var(--primary-bg);
    color: var(--primary);
    border-radius: 50%;
    margin-right: 1rem;
  }
  
  .contact-details {
    display: flex;
    flex-direction: column;
  }
  
  .contact-label {
    font-size: 0.875rem;
    color: var(--gray-500);
  }
  
  .social-links {
    display: flex;
    gap: 1rem;
  }
  
  .social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 3rem;
    height: 3rem;
    background-color: var(--gray-100);
    color: var(--gray-700);
    border-radius: 50%;
    transition: all 0.3s ease;
  }
  
  .social-link:hover {
    background-color: var(--primary-bg);
    color: var(--primary);
  }
  
  /* Form Styles */
  .form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
  }
  
  .form-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  
  .form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
  }
  
  .form-group label {
    font-size: 0.875rem;
    font-weight: 500;
  }
  
  input, textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius);
    background-color: var(--white);
    font-family: inherit;
    font-size: 1rem;
    transition: border-color 0.3s ease;
  }
  
  input:focus, textarea:focus {
    outline: none;
    border-color: var(--primary);
  }
  
  /* Footer */
  .footer {
    background-color: var(--white);
    padding: 2rem 0;
    box-shadow: 0 -1px 3px rgba(0, 0, 0, 0.1);
    margin-top: 3rem;
  }
  
  .footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
  }
  
  .footer-copyright {
    font-size: 0.875rem;
    color: var(--gray-600);
  }
  
  .footer-links {
    display: flex;
    gap: 1rem;
  }
  
  .footer-link {
    color: var(--gray-500);
  }
  
  .footer-link:hover {
    color: var(--primary);
  }
  
  /* Modal */
  .modal {
    display: none;
    position: fixed;
    z-index: 100;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0, 0, 0, 0.4);
  }
  
  .modal-content {
    background-color: var(--white);
    margin: 10% auto;
    padding: 2rem;
    border-radius: var(--radius);
    max-width: 800px;
    width: 90%;
    position: relative;
    box-shadow: var(--shadow-xl);
  }
  
  .close-modal {
    position: absolute;
    top: 1rem;
    right: 1.5rem;
    color: var(--gray-500);
    font-size: 1.75rem;
    cursor: pointer;
    line-height: 1;
  }
  
  .close-modal:hover {
    color: var(--gray-900);
  }
  
  /* Animations */
  @keyframes fadeIn {
    from {
      opacity: 0;
      transform: translateY(10px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }
  
  @keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
      transform: translateY(0);
    }
    40% {
      transform: translateY(-10px);
    }
    60% {
      transform: translateY(-5px);
    }
  }
  
  .animate-fade-in {
    opacity: 0;
    animation: fadeIn 0.8s ease-out forwards;
  }
  
  .animate-bounce {
    animation: bounce 2s infinite;
  }
  
  /* Responsive Styles */
  @media (min-width: 640px) {
    .hero-buttons {
      flex-direction: row;
      justify-content: center;
    }
    
    .form-grid {
      grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-content {
      flex-direction: row;
      justify-content: space-between;
    }
  }
  
  @media (min-width: 768px) {
    .navbar-menu {
      display: flex;
    }
    
    .navbar-toggle {
      display: none;
    }
    
    .hero {
      text-align: left;
      padding: 6rem 0 10rem;
    }
    
    .hero-content {
      margin: 0;
    }
    
    .hero-title {
      font-size: 3rem;
    }
    
    .hero-buttons {
      margin: 0;
    }
    
    .scroll-indicator {
      display: block;
    }
    
    .about-grid, 
    .skills-grid {
      grid-template-columns: repeat(2, 1fr);
    }
    
    .projects-grid {
      grid-template-columns: repeat(2, 1fr);
    }
    
    .contact-grid {
      grid-template-columns: 1fr 2fr;
    }
  }
  
  @media (min-width: 1024px) {
    .hero-title {
      font-size: 3.75rem;
    }
    
    .section-title {
      font-size: 2.5rem;
    }
    
    .projects-grid {
      grid-template-columns: repeat(3, 1fr);
    }
    
    .modal-content {
      max-width: 1000px;
    }
  }
  
  /* Utility Classes */
  .h-full {
    height: 100%;
  }