* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  
  body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    background-color: #f4f4f4;
    color: #333;
    padding: 20px;
  }
  
  header {
    text-align: center;
    padding: 50px 20px 20px;
    background-color: #2c3e50;
    color: #fff;
    border-radius: 10px;
    margin-bottom: 20px;
  }
  
  header h1 {
    font-size: 2.5em;
    margin-bottom: 10px;
  }
  
  #profesi {
    font-weight: bold;
    color: #1abc9c;
  }
  
  nav ul {
    display: flex;
    justify-content: center;
    list-style: none;
    background-color: #34495e;
    border-radius: 8px;
    margin: 20px auto;
    padding: 10px 0;
    max-width: 600px;
  }
  
  nav ul li {
    margin: 0 15px;
  }
  
  nav ul li a {
    color: #ecf0f1;
    text-decoration: none;
    font-weight: bold;
    transition: color 0.3s;
  }
  
  nav ul li a:hover {
    color: #1abc9c;
  }
  
  section {
    background: #fff;
    margin: 20px auto;
    padding: 20px;
    border-radius: 8px;
    max-width: 800px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  }
  
  section h2 {
    color: #2c3e50;
    margin-bottom: 10px;
  }
  
  section#project div {
    margin-bottom: 15px;
  }
  
  section#project h3 {
    margin-bottom: 5px;
    color: #16a085;
  }
  
  #contact a {
    color: #2980b9;
    text-decoration: none;
  }
  
  #contact a:hover {
    text-decoration: underline;
  }
  
  footer {
    text-align: center;
    margin-top: 30px;
    font-size: 0.9em;
    color: #7f8c8d;
  }
  
  .page-section {
  display: none;
  padding: 30px;
  background: #fff;
  margin: 20px auto;
  max-width: 800px;
  border-radius: 10px;
  box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

.page-section:target {
  display: block;
}

body:not(:has(:target)) #about {
  display: block;
}