body {
    margin: 0;
    font-family: 'Segoe UI', sans-serif;
    background: linear-gradient(to bottom, #111, #222);
    color: #eee;
    text-align: center;
    padding: 2rem;
  }
  
  a {
    color: #1d9bf0;
    text-decoration: none;
  }
  a:hover {
    text-decoration: underline;
  }
  
  .avatar {
    width: 180px;              
    aspect-ratio: 1;           
    border-radius: 50%;        
    border: 4px solid #1d9bf0;
    object-fit: cover;         
  }
  
  @media (min-width: 768px) {
    .avatar {
      width: 180px;
      height: 240px;
    }
  }


  .header h1 {
    margin: 1rem 0;
  }
  
  .nav a {
    margin: 0 0.5rem;
    padding: 0.5rem 1rem;
    border-radius: 9999px;
    display: inline-block;
    background: #444;
    color: white;
  }
  
  .nav .active {
    background: #1d9bf0;
  }
  
  .about {
    max-width: 600px;
    margin: 2rem auto;
    font-size: 1.1rem;
    line-height: 1.6;
  }
  
  .highlight {
    color: #4ade80; /* Tailwind green-400 */
  }
  
  /* Mobile-first Responsive */
  @media (min-width: 768px) {
    .header .container {
      display: flex;
      flex-direction: column;
      align-items: center;
    }
  }


  .nav-link {
    padding: 8px 16px;
    margin: 4px;
    background-color: #eee;
    color: #333;
    border-radius: 9999px;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.3s ease;
    display: inline-block;
  }
  
  .nav-link.active {
    background-color: #1d9bf0;
    color: white;
    box-shadow: 0 0 8px rgba(29, 155, 240, 0.6);
  }
  
  .nav-link:hover {
    background-color: #1d9bf0;
    color: white;
    box-shadow: 0 0 12px rgba(29, 155, 240, 0.8), 0 0 20px rgba(29, 155, 240, 0.5);
    transform: scale(1.03);
    z-index: 1;
  }