:root {
    --color-primary: #3b82f6;
    --color-secondary: #10b981;
    --color-text: #1f2937;
    --color-text-light: #6b7280;
    --color-background: #ffffff;
    --color-background-alt: #f3f4f6;
    --border-radius: 8px;
    --transition: 0.3s ease;
  }
  
  * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  
  body {
    font-family: 'Inter', sans-serif;
    color: var(--color-text);
    line-height: 1.5;
  }
  
  .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
  }
  
  h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
  }
  
  .section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 1rem;
  }
  
  .section-description {
    font-size: 1.125rem;
    color: var(--color-text-light);
    text-align: center;
    margin-bottom: 3rem;
  }
  
  .header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(8px);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    z-index: 1000;
  }
  
  .nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 4rem;
  }
  
  .nav-logo {
    font-family: 'Pacifico', cursive;
    font-size: 1.5rem;
    color: var(--color-primary);
    text-decoration: none;
  }
  
  .nav-menu {
    display: flex;
    gap: 2rem;
    align-items: center;
  }
  
  .nav-link {
    color: var(--color-text);
    text-decoration: none;
    transition: var(--transition);
  }
  
  .nav-link:hover {
    color: var(--color-primary);
  }
  
  .button {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius);
    background: var(--color-primary);
    color: white;
    border: none;
    cursor: pointer;
    font-weight: 500;
    transition: var(--transition);
  }
  
  .button:hover {
    background: rgba(59, 130, 246, 0.9);
  }
  
  .button-outline {
    background: transparent;
    border: 2px solid var(--color-primary);
    color: var(--color-primary);
  }
  
  .button-outline:hover {
    background: rgba(59, 130, 246, 0.1);
  }
  
  .button-light {
    background: white;
    color: var(--color-text);
  }
  
  .button-full {
    width: 100%;
    justify-content: center;
  }
  
  .icon {
    width: 1.25rem;
    height: 1.25rem;
  }
  
  .home {
    padding-top: 6rem;
    min-height: 100vh;
    position: relative;
    overflow: hidden;
  }
  
  .home-bg {
    position: absolute;
    inset: 0;
    opacity: 0.1;
  }
  
  .home-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 5rem;
    align-items: center;
    position: relative;
  }
  
  .home-title {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    background: linear-gradient(to right, var(--color-primary), var(--color-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-size: 200% auto;
    animation: gradient 3s ease infinite;
  }
  
  .home-subtitle {
    font-size: 1.5rem;
    color: var(--color-text-light);
    margin-bottom: 2rem;
  }
  
  .home-description {
    font-size: 1.125rem;
    color: var(--color-text-light);
    margin-bottom: 2.5rem;
  }
  
  .home-buttons {
    display: flex;
    gap: 1rem;
  }
  
  .home-image img {
    width: 100%;
    border-radius: 1.5rem;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
  }
  
  .projects {
    padding: 5rem 0;
    background: var(--color-background-alt);
  }
  
  .project-filters {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 2rem;
  }
  
  .filter-button {
    padding: 0.5rem 1.5rem;
    border-radius: var(--border-radius);
    background: #e5e7eb;
    border: none;
    cursor: pointer;
    transition: var(--transition);
  }
  
  .filter-button.active {
    background: var(--color-primary);
    color: white;
  }
  
  .project-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
  }
  
  .project-card {
    background: white;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  }
  
  .project-image {
    position: relative;
    overflow: hidden;
  }
  
  .project-image img {
    width: 100%;
    height: 240px;
    object-fit: cover;
    transition: var(--transition);
  }
  
  .project-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
  }
  
  .project-card:hover .project-image img {
    transform: scale(1.05);
  }
  
  .project-card:hover .project-overlay {
    opacity: 1;
  }
  
  .project-title {
    font-size: 1.25rem;
    margin: 1rem;
  }
  
  .project-description {
    color: var(--color-text-light);
    margin: 0 1rem;
  }
  
  .project-tags {
    display: flex;
    gap: 0.5rem;
    margin: 1rem;
  }
  
  .tag {
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 500;
  }
  
  .tag-blue {
    background: #dbeafe;
    color: #1e40af;
  }
  
  .tag-green {
    background: #dcfce7;
    color: #166534;
  }
  
  .tag-purple {
    background: #f3e8ff;
    color: #6b21a8;
  }
  
  .tag-red {
    background: #fee2e2;
    color: #991b1b;
  }
  
  .tag-yellow {
    background: #fef3c7;
    color: #92400e;
  }
  
  .tag-pink {
    background: #fce7f3;
    color: #831843;
  }
  

  .skills {
    padding: 5rem 0;
  }
  
  .skills-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
  }
  
  .skill-card {
    padding: 1.5rem;
    background: white;
    border-radius: var(--border-radius);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: var(--transition);
  }
  
  .skill-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
  }
  
  .skill-icon {
    width: 3rem;
    height: 3rem;
    background: #dbeafe;
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    
    color: var(--color-primary);
    margin-bottom: 1rem;
    transition: var(--transition);
  }
  
  .skill-card:hover .skill-icon {
    background: rgba(59, 130, 246, 0.1);
  }
  
  .skill-title {
    font-size: 1.125rem;
    margin-bottom: 0.5rem;
  }
  
  .skill-description {
    color: var(--color-text-light);
  }
  

  .contact {
    padding: 5rem 0;
  }
  
  .contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
  }
  
  .contact-form {
    background: white;
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  }
  
  .form-group {
    margin-bottom: 1.5rem;
  }
  
  .form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 0.5rem;
  }
  
  .form-group input,
  .form-group textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid #e5e7eb;
    border-radius: var(--border-radius);
    transition: var(--transition);
  }
  
  .form-group input:focus,
  .form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
  }
  
  .form-group textarea {
    height: 8rem;
    resize: vertical;
  }
  
  .contact-info {
    background: white;
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  }
  
  .info-list {
    margin: 2rem 0;
  }
  
  .info-item {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
  }
  
  .info-icon {
    width: 2.5rem;
    height: 2.5rem;
    background: rgba(59, 130, 246, 0.1);
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
  }
  
  .info-label {
    font-size: 0.875rem;
    color: var(--color-text-light);
  }
  
  .info-value {
    font-weight: 500;
  }
  
  .social-links h4 {
    margin-bottom: 1rem;
  }
  
  .social-icons {
    display: flex;
    gap: 1rem;
  }
  
  .social-icon {
    width: 2.5rem;
    height: 2.5rem;
    background: #f3f4f6;
    border-radius: 9999px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text);
    transition: var(--transition);
  }
  
  .social-icon:hover {
    background: #e5e7eb;
  }
  

  .footer {
    background: #111827;
    color: white;
    padding: 3rem 0;
  }
  
  .footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
  }
  
  .footer-logo {
    font-family: 'Pacifico', cursive;
    font-size: 1.5rem;
    color: white;
    text-decoration: none;
  }
  
  .footer-links {
    display: flex;
    gap: 2rem;
  }
  
  .footer-links a {
    color: white;
    text-decoration: none;
    transition: var(--transition);
  }
  
  .footer-links a:hover {
    color: var(--color-primary);
  }
  
  .footer-social {
    display: flex;
    gap: 1rem;
  }
  
  .footer-social .social-icon {
    background: rgba(255, 255, 255, 0.1);
    color: white;
  }
  
  .footer-social .social-icon:hover {
    background: rgba(255, 255, 255, 0.2);
  }
  
  .footer-bottom {
    text-align: center;
    color: #9ca3af;
  }
  
  
  .back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 3rem;
    height: 3rem;
    background: var(--color-primary);
    color: white;
    border: none;
    border-radius: 9999px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    transition: var(--transition);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  }
  
  .back-to-top.visible {
    opacity: 1;
  }
  
  
  .modal {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
  }
  
  .modal.visible {
    opacity: 1;
    visibility: visible;
  }
  
  .modal-content {
    background: white;
    padding: 2rem;
    border-radius: var(--border-radius);
    text-align: center;
    max-width: 24rem;
  }
  
  .modal-icon {
    width: 4rem;
    height: 4rem;
    background: #dcfce7;
    border-radius: 9999px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #16a34a;
    margin: 0 auto 1rem;
  }
  
  .modal-content h3 {
    margin-bottom: 0.5rem;
  }
  
  .modal-content p {
    color: var(--color-text-light);
    margin-bottom: 1.5rem;
  }
  
  
  @keyframes gradient {
    0% {
      background-position: 0% 50%;
    }
    50% {
      background-position: 100% 50%;
    }
    100% {
      background-position: 0% 50%;
    }
  }
  
  
  @media (max-width: 1024px) {
    .skills-grid {
      grid-template-columns: repeat(2, 1fr);
    }
  }
  
  @media (max-width: 768px) {
    .home-content {
      grid-template-columns: 1fr;
      gap: 2rem;
    }
  
    .project-grid {
      grid-template-columns: repeat(2, 1fr);
    }
  
    .contact-grid {
      grid-template-columns: 1fr;
    }
  
    .footer-content {
      flex-direction: column;
      gap: 2rem;
      text-align: center;
    }
  }
  
  @media (max-width: 640px) {
    .project-grid {
      grid-template-columns: 1fr;
    }
  
    .skills-grid {
      grid-template-columns: 1fr;
    }
  
  }