/* Container und Layout */
body, html {
    margin: 0;
    padding: 0;
    height: 100%;
    font-family: Arial, sans-serif;
    background-color: #f0f2f5;
  }
  
  .container {
    display: flex;
    height: 100vh;
  }
  
  /* Linke Navigation */
  nav {
    background-color: #fff;
    width: 250px;
    border-right: 2px solid rgba(37, 117, 252, 0.7);
    box-shadow: 0 0 15px rgba(37, 117, 252, 0.4);
    display: flex;
    flex-direction: column;
    padding: 20px;
    box-sizing: border-box;
  }
  
  nav a {
    color: #2575fc;
    text-decoration: none;
    font-weight: 600;
    margin-bottom: 15px;
    font-size: 1.1rem;
    transition: color 0.3s ease;
  }
  
  nav a:hover {
    color: #6a11cb;
  }

  nav a.active {
    color: #6a11cb;
    background-color: rgba(37, 117, 252, 0.1);
    padding: 10px;
    border-radius: 6px;
    border-left: 3px solid #6a11cb;
  }
  
  /* Hauptinhalt rechts */
  main {
    flex-grow: 1;
    padding: 40px;
    background-color: #fafafa;
    box-sizing: border-box;
    overflow-y: auto;
  }

  /* Typography */
  h1 {
    color: #2575fc;
    margin-bottom: 20px;
    font-size: 2.5rem;
  }

  h2 {
    color: #6a11cb;
    margin-bottom: 30px;
    font-size: 1.8rem;
  }

  h3 {
    color: #2575fc;
    margin-bottom: 15px;
    font-size: 1.4rem;
  }

  h4 {
    color: #6a11cb;
    margin-bottom: 10px;
    font-size: 1.2rem;
  }

  p {
    line-height: 1.6;
    margin-bottom: 15px;
  }

  ul {
    margin-bottom: 20px;
    padding-left: 20px;
  }

  li {
    margin-bottom: 8px;
  }

  /* Sections */
  section {
    margin-bottom: 40px;
  }

  .about-section, .philosophy-section, .approach-section {
    background-color: #fff;
    padding: 25px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    margin-bottom: 30px;
  }

  /* Project Cards */
  .projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
    margin-bottom: 40px;
  }

  .project-card {
    background-color: #fff;
    padding: 25px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
  }

  .project-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.15);
  }

  .project-card h3 {
    color: #2575fc;
    margin-bottom: 15px;
  }

  /* Case Studies */
  .case-studies {
    background-color: #fff;
    padding: 25px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  }

  .case-study {
    margin-bottom: 20px;
    padding: 15px;
    background-color: #f8f9fa;
    border-radius: 6px;
    border-left: 4px solid #2575fc;
  }

  /* Contact Grid */
  .contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
  }

  .contact-info, .contact-form {
    background-color: #fff;
    padding: 25px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  }

  .contact-item {
    margin-bottom: 20px;
  }

  .contact-item strong {
    color: #2575fc;
    display: block;
    margin-bottom: 5px;
  }

  /* Contact Form */
  .form-group {
    margin-bottom: 20px;
  }

  .form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: 600;
    color: #333;
  }

  .form-group input,
  .form-group select,
  .form-group textarea {
    width: 100%;
    padding: 12px;
    border: 2px solid #e0e0e0;
    border-radius: 6px;
    font-size: 16px;
    transition: border-color 0.3s ease;
    box-sizing: border-box;
  }

  .form-group input:focus,
  .form-group select:focus,
  .form-group textarea:focus {
    outline: none;
    border-color: #2575fc;
  }

  .submit-button {
    background-color: #2575fc;
    color: white;
    padding: 12px 30px;
    border: none;
    border-radius: 6px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.3s ease;
  }

  .submit-button:hover {
    background-color: #6a11cb;
  }

  /* CTA Button */
  .cta-button {
    display: inline-block;
    background-color: #2575fc;
    color: white;
    padding: 15px 30px;
    text-decoration: none;
    border-radius: 6px;
    font-weight: 600;
    transition: background-color 0.3s ease;
  }

  .cta-button:hover {
    background-color: #6a11cb;
  }

  /* Moderner Button */
  button {
    background-color: #f0f0f0;
    color: #333;
    padding: 10px 20px;
    border: 1px solid #ccc;
    border-radius: 6px;
    font-size: 16px;
    cursor: pointer;
    transition: background-color 0.3s ease, box-shadow 0.3s ease;
  }
  
  button:hover {
    background-color: #e0e0e0;
    box-shadow: 0 0 6px rgba(0, 0, 0, 0.1);
  }
  
  
  button:active {
    transform: translateY(-1px);
    box-shadow: 0 3px 10px rgba(37, 117, 252, 0.2);
  }
  
  /* Responsive Design */
  @media (max-width: 768px) {
    .container {
      flex-direction: column;
    }
    nav {
      width: 100%;
      border-right: none;
      border-bottom: 2px solid rgba(37, 117, 252, 0.7);
      box-shadow: 0 0 15px rgba(37, 117, 252, 0.4);
      flex-direction: row;
      justify-content: space-around;
      padding: 10px 0;
    }
    nav a {
      margin-bottom: 0;
    }
    nav a.active {
      padding: 8px;
    }
    main {
      padding: 20px;
    }
    .contact-grid {
      grid-template-columns: 1fr;
      gap: 20px;
    }
    .projects-grid {
      grid-template-columns: 1fr;
    }
    h1 {
      font-size: 2rem;
    }
    h2 {
      font-size: 1.5rem;
    }
  }