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

      body {
        font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
        line-height: 1.6;
        color: #2d3748;
        background-color: #f7fafc;
      }

      nav {
        background: #1a202c;
        padding: 1rem 0;
        position: sticky;
        top: 0;
        z-index: 100;
      }

      nav ul {
        max-width: 800px;
        margin: 0 auto;
        list-style: none;
        display: flex;
        justify-content: center;
        gap: 2rem;
      }

      nav a {
        color: #e2e8f0;
        text-decoration: none;
        font-weight: 500;
        transition: color 0.3s;
      }

      nav a:hover {
        color: #63b3ed;
      }

      section {
        max-width: 800px;
        margin: 0 auto;
        padding: 4rem 1.5rem;
      }

      .hero {
        text-align: center;
        padding: 6rem 1.5rem;
        background: linear-gradient(135deg, #1a202c 0%, #2d3748 100%);
        color: white;
      }

      .hero h1 {
        font-size: 3rem;
        margin-bottom: 0.5rem;
      }

      .hero h2 {
        font-size: 1.5rem;
        font-weight: 400;
        color: #a0aec0;
        margin-bottom: 2rem;
      }

      .hero-buttons {
        display: flex;
        justify-content: center;
        gap: 1rem;
        flex-wrap: wrap;
      }

      .btn {
        display: inline-block;
        padding: 0.75rem 1.5rem;
        border-radius: 0.5rem;
        text-decoration: none;
        font-weight: 600;
        transition: all 0.3s;
      }

      .btn-primary {
        background: #3182ce;
        color: white;
      }

      .btn-primary:hover {
        background: #2c5282;
      }

      .btn-secondary {
        background: transparent;
        color: #e2e8f0;
        border: 2px solid #4a5568;
      }

      .btn-secondary:hover {
        border-color: #63b3ed;
        color: #63b3ed;
      }

      h3 {
        font-size: 1.8rem;
        margin-bottom: 1.5rem;
        color: #1a202c;
        border-bottom: 3px solid #3182ce;
        display: inline-block;
        padding-bottom: 0.3rem;
      }

      .about p {
        font-size: 1.1rem;
        margin-bottom: 1rem;
      }

      .skills-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
        gap: 1rem;
        margin-top: 1rem;
      }

      .skill-card {
        background: white;
        padding: 1.2rem;
        border-radius: 0.5rem;
        box-shadow: 0 2px 4px rgba(0, 0, 0, 0, 1);
        font-weight: 600;
        transition: transform 0.3s;
      }

      .skill-card:hover {
        transform: translateY(-3px);
      }

      .contact-links {
        display: flex;
        gap: 1.5rem;
        flex-wrap: wrap;
        justify-content: center;
      }

      .contact-link {
        display: flex;
        align-items: center;
        gap: 0.5rem;
        text-decoration: none;
        color: #2d3748;
        font-size: 1.1rem;
        transition: color 0.3s;
      }

      .contact-link:hover {
        color: #3182ce;
      }

      footer {
        text-align: center;
        padding: 2rem;
        background: #1a202c;
        color: #a0aec0;
        font-size: 0.9rem;
      }

      @media (max-width: 600px) {
        .hero h1 {
          font-size: 2rem;
        }

        nav ul {
          gap: 1rem;
        }
      }