<style>
    /* Your CSS */
    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }

    body {
      font-family: Arial, sans-serif;
      background-color: #121433;
      display: flex;
      justify-content: center;
      align-items: center;
      height: 100vh;
    }

    .container {
      width: 90%;
      max-width: 400px;
      background-color: #fff;
      border-radius: 10px;
      padding: 20px;
      text-align: center;
      box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    }

    .back-button {
      background-color: transparent;
      border: none;
      color: #fff;
      font-size: 20px;
    }

    .title {
      font-size: 24px;
      color: #fff;
      margin-bottom: 10px;
      letter-spacing: 2px;
      text-transform: uppercase;
    }

    .form {
      background-color: #f8f8f8;
      padding: 20px;
      border-radius: 10px;
      text-align: left;
    }

    .avatar {
      text-align: center;
      margin-bottom: 20px;
    }

    .avatar img {
      width: 80px;
      height: 80px;
      border-radius: 50%;
    }

    .input-group {
      display: flex;
      gap: 10px;
      margin-bottom: 15px;
    }

    input {
      width: 100%;
      padding: 10px;
      margin-bottom: 15px;
      border-radius: 5px;
      border: 1px solid #ccc;
    }

    input::placeholder {
      color: #888;
    }

    .register-btn {
      background-image: linear-gradient(to right, #3F87A6, #EBF8E1);
      color: #fff;
      padding: 10px;
      border: none;
      border-radius: 5px;
      width: 100%;
      cursor: pointer;
    }

    .register-btn:hover {
      opacity: 0.8;
    }

    .login-text {
      margin-top: 20px;
    }

    .login-text a {
      color: #3F87A6;
      text-decoration: none;
    }

    .toast {
      position: fixed;
      top: 20px;
      right: 20px;
      padding: 15px;
      background-color: #f0ad4e;
      color: #fff;
      border-radius: 5px;
      display: none;
    }

    .toast.success {
      background-color: #28a745;
    }

    .toast.error {
      background-color: #dc3545;
    }

    .toast.show {
      display: block;
    }

  </style>