/* General reset and layout */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(to right, #a1c4fd, #c2e9fb);
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    min-height: 100vh;
    align-items: center;
  }
  
  /* Main container */
  .container {
    background: #fff;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
    width: 90%;
    max-width: 600px;
    text-align: center;
  }
  
  /* Heading */
  .container h1 {
    color: #3f51b5;
    margin-bottom: 1rem;
  }
  
  /* Auth buttons */
  #signInBtn, #signOutBtn {
    padding: 10px 20px;
    border: none;
    background-color: #4285f4;
    color: white;
    font-weight: bold;
    border-radius: 6px;
    cursor: pointer;
    margin: 10px 5px;
    transition: background-color 0.3s ease;
  }
  
  #signOutBtn {
    background-color: #db4437;
  }
  
  #signInBtn:hover {
    background-color: #3367d6;
  }
  
  #signOutBtn:hover {
    background-color: #c23321;
  }
  
  /* Form styling */
  form {
    margin-top: 20px;
    display: flex;
    flex-direction: column;
    gap: 12px;
  }
  
  input, textarea {
    padding: 12px;
    border: 2px solid #ccc;
    border-radius: 8px;
    font-size: 16px;
    resize: none;
    width: 100%;
  }
  
  textarea {
    min-height: 80px;
  }
  
  form button {
    background-color: #4caf50;
    color: white;
    border: none;
    padding: 12px;
    border-radius: 8px;
    font-weight: bold;
    cursor: pointer;
    transition: background-color 0.3s ease;
  }
  
  form button:hover {
    background-color: #388e3c;
  }
  
  /* Feedback list */
  .feedback-container {
    margin-top: 30px;
    display: flex;
    flex-direction: column;
    gap: 12px;
  }
  
  /* Individual feedback card */
  .feedback {
    background-color: #f9f9f9;
    border-left: 6px solid #4caf50;
    padding: 12px 16px;
    border-radius: 8px;
    text-align: left;
    position: relative;
  }
  
  .feedback strong {
    color: #333;
  }
  
  .feedback .delete-btn {
    position: absolute;
    top: 8px;
    right: 12px;
    background: transparent;
    border: none;
    color: #e53935;
    font-size: 18px;
    cursor: pointer;
  }
  
  .feedback .delete-btn:hover {
    color: #b71c1c;
  }
  
  /* User info */
  #userInfo {
    margin-top: 10px;
    font-weight: bold;
    color: #333;
  }