* {
      box-sizing: border-box;
    }

    body {
      margin: 0;
      font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
      background: linear-gradient(to right, #dfe9f3, #ffffff);
    }

    .navbar {
      display: flex;
      justify-content: space-between;
      align-items: center;
      background-color: #081f36;
      padding: 10px 20px;
      color: white;
    }

    .navbar a {
      color: white;
      text-decoration: none;
      margin: 0 10px;
      font-weight: bold;
    }

    .navbar a:hover {
      text-decoration: underline;
    }

    .nav-left {
      font-size: 18px;
      font-weight: bold;
    }

    .nav-right {
      display: flex;
    }

    .container {
      display: flex;
      align-items: center;
      justify-content: center;
      height: calc(100vh - 60px); /* account for navbar height */
    }

    form {
      background-color: #fff;
      padding: 30px 40px;
      border-radius: 10px;
      box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
      width: 100%;
      max-width: 400px;
    }

    h2 {
      text-align: center;
      margin-bottom: 25px;
      color: #333;
    }

    label {
      display: block;
      margin-bottom: 6px;
      font-weight: 500;
      color: #555;
    }

    input[type="text"],
    input[type="password"] {
      width: 100%;
      padding: 10px 12px;
      margin-bottom: 20px;
      border: 1px solid #ccc;
      border-radius: 6px;
      font-size: 14px;
      transition: border-color 0.3s ease;
    }

    input:focus {
      border-color: #007BFF;
      outline: none;
    }

    button[type="submit"] {
      width: 100%;
      padding: 12px;
      background-color: #081f36;
      color: white;
      border: none;
      font-size: 16px;
      font-weight: bold;
      border-radius: 6px;
      cursor: pointer;
      transition: background-color 0.3s ease;
    }

    button[type="submit"]:hover {
      background-color: #0056b3;
    }

    #responseBox {
      margin-top: 15px;
      font-size: 14px;
      text-align: center;
    }