/* Wrapper Card */
form.challenge-form {
  background: #f7f9fc;
  border: 1px solid #ccc;
  border-radius: 6px;
  padding: 20px;
  max-width: 400px;
  margin: 20px auto;
  box-shadow: 0 2px 4px rgba(0,0,0,0.08);
  font-family: Arial, sans-serif;
}

/* Heading */
form.challenge-form h3 {
  text-align: center;
  margin-bottom: 20px;
  font-size: 20px;
  color: #333;
}

/* Input Fields */
form.challenge-form input[type="text"],
form.challenge-form input[type="email"],
form.challenge-form input[type="tel"],
form.challenge-form input[type="password"] {
  width: 100%;
  padding: 10px;
  margin-bottom: 15px;
  border-radius: 4px;
  border: 1px solid #ccc;
  box-sizing: border-box;
  font-size: 14px;
}

/* Buttons */
form.challenge-form button {
  background-color: #1f2a70;
  color: #fff !important;
  padding: 10px 16px;
  border: none;
  border-radius: 4px;
  font-size: 14px;
  cursor: pointer;
  margin-right: 10px;
}

form.challenge-form button:hover {
  background-color: #152056;
}

/* Secondary Button (like Register) */
form.challenge-form .secondary-btn {
  background: #fff;
  color: #1f2a70;
  border: 1px solid #1f2a70;
  padding: 9px 15px;
  border-radius: 4px;
  font-weight: bold;
  text-decoration: none;
}

form.challenge-form .secondary-btn:hover {
  background: #f0f0f0;
}