* { margin:0; padding:0; box-sizing: border-box; font-family: Arial, sans-serif; }

body {
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  background: linear-gradient(135deg, #4285f4, #34a853);
}

.login-box {
  background-color: #fff;
  padding: 40px 30px;
  border-radius: 12px;
  box-shadow: 0 8px 25px rgba(0,0,0,0.2);
  width: 300px;
  text-align: center;
  position: relative;
}

.login-box h2 {
  margin-bottom: 25px;
  color: #333;
}

.login-box input {
  width: 100%;
  padding: 12px 10px;
  margin-bottom: 15px;
  border: 1px solid #ccc;
  border-radius: 6px;
  font-size: 16px;
}

.login-box button {
  width: 100%;
  padding: 12px;
  border: none;
  border-radius: 6px;
  background-color: #4285f4;
  color: #fff;
  font-size: 16px;
  cursor: pointer;
  transition: background-color 0.2s;
}

.login-box button:hover {
  background-color: #3367d6;
}

.error-message {
  color: #fff;
  background-color: #e53935;
  padding: 10px;
  border-radius: 6px;
  margin-bottom: 15px;
  display: none; 
}