/* Reset and box sizing */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  
  body {
    font-family: 'Roboto', sans-serif;
    background-color: #f0f2f5;
    color: #333;
    line-height: 1.6;
  }
  
  /* Container styling for each page */
  .container {
    max-width: 800px;
    margin: 80px auto 80px;
    padding: 20px;
    background-color: #ffffff;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  }
  
  /* Header and Logout Button */
  header {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    display: flex;
    align-items: center;
    padding: 10px 20px;
    background: transparent;
  }
  .logout-btn {
    margin-right: 20px;
    background-color: #dc3545;
    color: #fff;
    border: none;
    padding: 8px 12px;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.3s ease;
  }
  .logout-btn:hover {
    background-color: #b02a37;
  }
  
  /* Notification area in top right */
  #notificationArea {
    position: fixed;
    top: 10px;
    right: 10px;
  }
  .notification {
    padding: 10px 20px;
    margin: 5px;
    border-radius: 4px;
    color: #fff;
    font-weight: 500;
  }
  .notification.success { background-color: #28a745; }
  .notification.error { background-color: #dc3545; }
  .notification.info { background-color: #17a2b8; }
  
  /* Footer */
  footer {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background-color: #ffffff;
    border-top: 1px solid #ddd;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 20px;
    font-size: 0.9em;
  }
  .footer-left, .footer-middle, .footer-right { margin: 0 10px; }
  .footer-middle a, .footer-right a {
    text-decoration: none;
    margin: 0 5px;
    color: #007bff;
  }
  
  /* Form styling */
  form > label {
    display: block;
    margin-bottom: 5px;
    font-weight: 500;
  }
  form > input, form > button {
    width: 100%;
    padding: 10px;
    margin-bottom: 15px;
    border: 1px solid #ccc;
    border-radius: 4px;
    font-size: 1em;
  }
  form > button {
    background-color: #007bff;
    color: #fff;
    border: none;
    cursor: pointer;
    transition: background-color 0.3s ease;
  }
  form > button:hover { background-color: #0056b3; }
  
  /* Headings */
  h1, h2 {
    margin-bottom: 15px;
    color: #444;
  }
  
  /* Warning Banner */
.warning-banner {
    background-color: #ff4d4d;  /* a vivid red */
    color: #ffffff;
    text-align: center;
    font-weight: bold;
    padding: 10px;
    font-size: 1em;
  }