body {
  font-family: Arial, sans-serif;
  background: #f4f6f9;
  margin: 0;
  padding: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
}

.auth-container {
  background: white;
  padding: 40px;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  width: 100%;
  max-width: 400px;
}

h2 {
  text-align: center;
  margin-bottom: 24px;
  color: #333;
}

.input-group {
  margin-bottom: 16px;
}

label {
  display: block;
  margin-bottom: 6px;
  color: #555;
  font-size: 14px;
}

input[type="text"],
input[type="password"] {
  width: 100%;
  padding: 10px;
  border: 1px solid #ddd;
  border-radius: 6px;
  font-size: 14px;
  box-sizing: border-box;
}

input:focus {
  border-color: #4a90e2;
  outline: none;
}

button {
  width: 100%;
  padding: 12px;
  background: #4a90e2;
  color: white;
  border: none;
  border-radius: 6px;
  font-size: 16px;
  cursor: pointer;
  transition: background 0.3s;
}

button:hover {
  background: #3a7bc8;
}

.error {
  background: #ffebee;
  color: #c62828;
  padding: 10px;
  border-radius: 6px;
  font-size: 14px;
  margin-bottom: 16px;
  text-align: center;
}