body {
  margin: 0;
  font-family: 'Poppins', sans-serif;
  background: #f9f9f9;
}

.auth-container {
  width: 400px;
  max-width: 90%;
  margin: 100px auto;
  padding: 40px;
  background: #fff;
  border-radius: 15px;
  box-shadow: 0 5px 25px rgba(0,0,0,0.1);
  text-align: center;
}

.auth-container h2 {
  margin-bottom: 25px;
  font-weight: 700;
  color: #0f0f0f;
  font-size: 1.8em;
}

.auth-container input {
  width: 100%;
  padding: 12px;
  margin: 12px 0;
  border-radius: 10px;
  border: 1px solid #ccc;
  font-size: 1em;
}

.auth-container button {
  width: 100%;
  padding: 14px;
  background: #00e676;
  border: none;
  color: #000;
  font-weight: 600;
  border-radius: 10px;
  cursor: pointer;
  font-size: 1.1em;
  transition: 0.3s;
}

.auth-container button:hover {
  background: #00c853;
}

.auth-container a {
  color: #00c853;
  text-decoration: none;
}

.auth-container .text-center {
  margin-top: 15px;
  font-size: 0.95em;
}