body {
    font-family: 'Segoe UI', sans-serif;
    margin: 0;
    padding: 0;
    line-height: 1.6;
    background-color: #f9f9f9;
  }
  
  .container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
  }
  
  header {
    background: #0b0b0b;
    color: white;
    padding: 20px 0;
  }
  
  .logo {
    font-size: 24px;
    font-weight: bold;
  }
  
  nav ul {
    list-style: none;
    display: flex;
    gap: 20px;
    padding: 0;
  }
  
  nav a {
    color: white;
    text-decoration: none;
  }
  
  nav a.active,
  nav a:hover {
    text-decoration: underline;
  }
  
  .hero {
    background: linear-gradient(rgba(0,0,0,0.5), rgba(0,0,0,0.5)), 
                url('https://images.unsplash.com/photo-1542744173-8e7e53415bb0') center/cover;
    color: white;
    padding: 100px 20px;
    text-align: center;
  }
  
  
  .btn {
    background: #ff6600;
    color: white;
    padding: 10px 20px;
    text-decoration: none;
    display: inline-block;
    margin-top: 20px;
    border-radius: 4px;
  }
  
  .intro, .service, .contact-form {
    margin: 40px 0;
  }
  
  .contact-form input,
  .contact-form textarea {
    width: 100%;
    padding: 10px;
    margin-top: 10px;
    margin-bottom: 20px;
    border: 1px solid #ccc;
    border-radius: 4px;
  }
  
  .contact-form button {
    background-color: #0b0b0b;
    color: white;
    border: none;
    padding: 10px 20px;
    cursor: pointer;
  }
  
  footer {
    background: #0b0b0b;
    color: white;
    text-align: center;
    padding: 20px 0;
    margin-top: 40px;
  }
  .responsive-img {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 20px auto;
    border-radius: 8px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
  }