body {
  font-family: "Poppins", sans-serif;
  background: linear-gradient(135deg, #6a11cb, #2575fc);
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  margin: 0;
}

.container {
  background: white;
  padding: 2rem;
  border-radius: 20px;
  box-shadow: 0 8px 25px rgba(0,0,0,0.2);
  width: 350px;
  text-align: center;
}

h1 {
  margin-bottom: 1rem;
  color: #333;
}

.tabs {
  display: flex;
  justify-content: space-around;
  margin-bottom: 1rem;
}

.tabs button {
  background: none;
  border: none;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  color: #888;
  transition: color 0.3s;
}

.tabs button.active {
  color: #2575fc;
  border-bottom: 2px solid #2575fc;
}

.form {
  display: none;
  flex-direction: column;
}

.form.active {
  display: flex;
}

input {
  margin: 8px 0;
  padding: 10px;
  border-radius: 10px;
  border: 1px solid #ccc;
  outline: none;
}

button[type="submit"] {
  background: #2575fc;
  color: white;
  border: none;
  padding: 10px;
  border-radius: 10px;
  cursor: pointer;
  transition: background 0.3s;
}

button[type="submit"]:hover {
  background: #1a5edb;
}

#response-message {
  margin-top: 1rem;
  color: #333;
}