/* Base */
body {
    font-family: 'Segoe UI', Tahoma, sans-serif;
    background-color: #f4f6fa;
    margin: 0;
    padding: 20px;
    color: #333;
  }
  
  /* Container */
  .networking-container {
    max-width: 1000px;
    margin: auto;
    padding: 20px;
  }
  
  /* Header */
  .networking-header h1 {
    font-size: 2.5rem;
    color: #007bff;
    margin-bottom: 10px;
    text-align: center;
  }
  
  .networking-header p {
    color: #555;
    font-size: 1.1rem;
    margin-bottom: 30px;
    text-align: center;
  }
  
  /* Control Buttons */
  .controls {
    display: flex;
    gap: 15px;
    margin-bottom: 25px;
  }
  
  .btn {
    background-color: #007bff;
    color: white;
    padding: 10px 18px;
    border: none;
    border-radius: 5px;
    text-decoration: none;
    font-weight: bold;
    cursor: pointer;
    margin: 10px auto;
    transition: background-color 0.3s ease;
  }
  
  .btn:hover {
    background-color: #0056b3;
  }
  
  .btn.secondary {
    background-color: #6c757d;
  }
  
  .btn.secondary:hover {
    background-color: #5a6268;
  }
  
  /* Accordion Styles */
  .accordion-item {
    background: white;
    margin-bottom: 20px;
    border-radius: 6px;
    overflow: hidden;
    box-shadow: 0 2px 6px rgba(0,0,0,0.05);
  }
  
  .accordion-checkbox {
    display: none;
  }
  
  .accordion-header {
    display: block;
    background-color: #007bff;
    color: white;
    padding: 15px;
    font-size: 1.2rem;
    font-weight: bold;
    cursor: pointer;
    transition: background-color 0.3s;
  }
  
  .accordion-header:hover {
    background-color: #0056b3;
  }
  
  .accordion-content {
    display: none;
    padding: 20px;
    background-color: #ffffff;
  }
  
  .accordion-checkbox:checked + .accordion-header + .accordion-content {
    display: block;
  }
  
  .accordion-title {
    margin-top: 0;
    font-size: 1.3rem;
    margin-bottom: 10px;
  }
  
  .lab-links {
    margin: 15px 0;
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
  }
  
  .lab-image {
    width: 100%;
    max-height: 500px;
    object-fit: contain;
    border: 1px solid #ccc;
    margin-top: 15px;
    border-radius: 4px;
  }