/* Grundfarben */
:root {
    --primary-color: #007BFF; /* Blau */
    --secondary-color: #28A745; /* Grün */
    --accent-color: #FFC107; /* Orange */
    --text-color: #333;
    --text-light-color: #666;
    --background-color: #F8F9FA;
  }
  
  body {
    margin: 0;
    font-family: Arial, sans-serif;
    color: var(--text-color);
    background-color: var(--background-color);
    line-height: 1.6;
  }
  
  header {
    background-color: var(--primary-color);
    color: #fff;
    padding: 20px;
    text-align: center;
  }
  
  header h1 {
    margin: 0;
    font-size: 2.5rem;
  }
  
  header p {
    font-size: 1.2rem;
    margin-top: 10px;
  }
  
  main {
    padding: 20px;
  }
  
  .features {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    justify-content: center;
    margin: 40px 0;
  }
  
  .feature-card {
    background-color: #fff;
    border: 2px solid var(--primary-color);
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    width: 300px;
    padding: 20px;
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
  }
  
  .feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.2);
  }
  
  .feature-card h3 {
    color: var(--primary-color);
    margin-bottom: 10px;
  }
  
  .feature-card p {
    color: var(--text-light-color);
  }
  
  .feature-card.icon-green {
    border-color: var(--secondary-color);
  }
  
  .feature-card.icon-orange {
    border-color: var(--accent-color);
  }
  
  footer {
    background-color: var(--primary-color);
    color: #fff;
    text-align: center;
    padding: 20px;
    margin-top: 40px;
  }
  
  footer p {
    margin: 0;
    font-size: 0.9rem;
  }
  
  footer a {
    color: #FFC107;
    text-decoration: none;
  }
  
  footer a:hover {
    text-decoration: underline;
  }
  
  @media (max-width: 768px) {
    header h1 {
      font-size: 2rem;
    }
  
    header p {
      font-size: 1rem;
    }
  
    .features {
      flex-direction: column;
      align-items: center;
    }
  }