* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }

  body {
    font-family: "Segoe UI", sans-serif;
    background: #f5f7fa;
    color: #333;
    line-height: 1.6;
    user-select: none;
  }

  header {
    background: #1e293b;
    color: white;
    padding: 20px 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
  }

  header h1 {
    font-size: 1.5rem;
  }

  nav a {
    color: white;
    margin-left: 20px;
    text-decoration: none;
    font-size: 0.95rem;
  }

  nav a:hover {
    text-decoration: underline;
  }

  .hero {
    text-align: center;
    padding: 80px 20px;
    background: linear-gradient(135deg, #3b82f6, #06b6d4);
    color: white;
  }

  .hero h2 {
    font-size: 2.5rem;
    margin-bottom: 10px;
  }

  .hero p {
    font-size: 1.1rem;
    opacity: 0.9;
  }

  section {
    padding: 60px 20px;
    max-width: 1000px;
    margin: auto;
  }

  h3 {
    text-align: center;
    margin-bottom: 30px;
    font-size: 1.8rem;
    color: #1e293b;
  }

  .about {
    text-align: center;
    max-width: 700px;
    margin: auto;
  }

  .projects {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
  }

  .card {
    background: white;
    padding: 20px;
    border-radius: 12px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.08);
    transition: transform 0.2s;
  }

  .card:hover {
    transform: translateY(-5px);
  }

  .card h4 {
    margin-bottom: 10px;
  }

  .contact {
    text-align: center;
  }

  .contact a {
    display: inline-block;
    margin-top: 10px;
    color: #3b82f6;
    text-decoration: none;
  }

  footer {
    text-align: center;
    padding: 20px;
    background: #1e293b;
    color: white;
    font-size: 0.9rem;
  }