body {
  margin: 0;
  font-family: 'Segoe UI', sans-serif;
  background: #f5f6fa;
  color: #333;
}

.login-page {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
}

.login-container {
  background: white;
  padding: 30px;
  border-radius: 15px;
  box-shadow: 0 4px 15px rgba(0,0,0,0.1);
  text-align: center;
  width: 300px;
}

.login-container h2 {
  margin-bottom: 20px;
}

.login-container input {
  width: 100%;
  padding: 12px;
  margin: 10px 0;
  border: 1px solid #ddd;
  border-radius: 8px;
}

.login-container button {
  background: #27ae60;
  color: white;
  border: none;
  padding: 12px;
  width: 100%;
  border-radius: 8px;
  cursor: pointer;
  font-weight: bold;
  transition: 0.3s;
}

.login-container button:hover {
  background: #219150;
}

.error {
  color: red;
  font-size: 14px;
}