/* ---- Reset basique ---- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  
  /* ---- Corps de page ---- */
  body {
    font-family: Arial, sans-serif;
    background-color: #f8f9fa;
    color: #333;
    min-height: 100vh;
  }
  
  /* ---- Conteneur principal ---- */
  .container {
    width: 100%;
    max-width: 400px;
    margin: 80px auto;
    padding: 20px;
    background: #fff;
    border-radius: 6px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
  }
  
  .container h1, 
  .container h2 {
    text-align: center;
    margin-bottom: 20px;
  }
  
  /* ---- Boutons ---- */
  .btn,
  button {
    display: inline-block;
    background: #007bff;
    color: #fff;
    padding: 10px 15px;
    margin-top: 10px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    text-decoration: none;
    font-size: 1rem;
  }
  
  .btn:hover,
  button:hover {
    background: #0056b3;
  }
  
  /* ---- Label et input ---- */
  label {
    display: block;
    margin-top: 10px;
    margin-bottom: 5px;
  }
  
  input[type="email"],
  input[type="password"],
  input[type="text"] {
    width: 100%;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 4px;
    margin-bottom: 10px;
  }
  
  /* ---- Centrage ---- */
  .center {
    text-align: center;
  }
  
  .buttons {
    text-align: center;
    margin-top: 20px;
  }
  
  /* ---- Chat window ---- */
  #chatWindow {
    border: 1px solid #ccc;
    padding: 10px;
    height: 300px;
    overflow-y: auto;
    margin-bottom: 10px;
    border-radius: 4px;
  }
  
  #chatInput {
    display: flex;
    gap: 10px;
  }
  
  #userMessage {
    flex: 1;
  }
  
  .logout-btn {
    margin-top: 20px;
    width: 100%;
    background-color: #dc3545;
  }
  
  .logout-btn:hover {
    background-color: #c82333;
  }