body { 
  font-family: sans-serif; 
  display: flex; 
  justify-content: center; 
  align-items: center; 
  height: 100vh; 
  margin: 0; 
  background: #f5f5f5;
}

form { 
  display: flex; 
  flex-direction: column; 
  gap: 12px; 
  padding: 20px; 
  border: 1px solid #ccc; 
  border-radius: 8px; 
  background: white; 
  box-shadow: 0 4px 10px rgba(0,0,0,0.1);
}

input { 
  padding: 8px; 
  font-size: 16px; 
  border: 1px solid #aaa; 
  border-radius: 4px;
}

button { 
  padding: 10px; 
  font-size: 16px; 
  background-color: #2B4F92; 
  color: white; 
  border: none; 
  border-radius: 4px; 
  cursor: pointer; 
}

button:hover { 
  background-color: #1e3566; 
}

.error { 
  color: red; 
  font-weight: bold; 
}