/* Reset en basis */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
  }
  
  body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f0f4fa; /* zachte blauwe achtergrond */
    color: #1a1a1a;
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
  }
  
  /* Container */
  .container {
    max-width: 900px;
    margin: 0 auto;
    padding: 2rem 2rem;
    flex: 1;
  }
  
  /* Header */
  header {
    background-color: #ffffff;
    box-shadow: 0 4px 10px rgba(0, 60, 130, 0.1);
    padding: 1.5rem 0;
    margin-bottom: 3rem;
    border-radius: 0 0 10px 10px;
  }
  
  header h1 {
    font-weight: 700;
    font-size: 2rem;
    color: #004080; /* dieper blauw */
    display: inline-block;
    letter-spacing: 1.2px;
  }
  
  nav {
    float: right;
    margin-top: 0.5rem;
  }
  
  nav a {
    color: #004080;
    text-decoration: none;
    margin-left: 2.5rem;
    font-weight: 600;
    font-size: 1rem;
    position: relative;
    padding-bottom: 4px;
    transition: color 0.3s ease;
  }
  
  nav a::after {
    content: '';
    position: absolute;
    width: 0%;
    height: 2px;
    bottom: 0;
    left: 0;
    background-color: #0073e6; /* helder blauw accent */
    transition: width 0.3s ease;
  }
  
  nav a:hover {
    color: #0073e6;
  }
  
  nav a:hover::after {
    width: 100%;
  }
  
  /* Section titels */
  h2 {
    color: #003366; /* donkerblauw */
    border-left: 5px solid #0073e6;
    padding-left: 10px;
    margin-bottom: 1rem;
    font-weight: 700;
    font-size: 1.8rem;
  }
  
  /* About me tekst */
  #about p {
    font-size: 1.1rem;
    color: #2a2a2a;
    max-width: 700px;
    line-height: 1.7;
    margin-bottom: 2rem;
    letter-spacing: 0.03em;
  }
  
  /* Links lijst */
  ul {
    list-style-type: none;
    padding-left: 0;
    max-width: 700px;
  }
  
  ul li {
    margin-bottom: 1.3rem;
  }
  
  ul li a {
    font-size: 1.1rem;
    color: #0059b3; /* mooi blauw */
    font-weight: 600;
    text-decoration: none;
    border-bottom: 2px solid transparent;
    transition: border-color 0.3s ease, color 0.3s ease;
  }
  
  ul li a:hover {
    color: #003366;
    border-bottom-color: #0073e6;
  }
  
  /* Footer */
  footer {
    background-color: #ffffff;
    padding: 1rem 0;
    text-align: center;
    font-size: 0.9rem;
    color: #555;
    border-top: 1px solid #d1d9e6;
    border-radius: 10px 10px 0 0;
    margin-top: auto;
  }
  
  /* Responsive */
  @media (max-width: 600px) {
    nav {
      float: none;
      text-align: center;
      margin-top: 1rem;
    }
    nav a {
      margin-left: 1rem;
      margin-right: 1rem;
    }
    .container {
      padding: 1rem 1.5rem;
    }
  }