body {
  font-family: 'Roboto', sans-serif;
  background: linear-gradient(135deg, #06457c, #1976d2);
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  margin: 0;
  color: #fff;
}
.login-container {
  background-color: rgba(255, 255, 255, 0.1);
  padding: 2rem;
  border-radius: 16px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.2);
  width: 100%;
  max-width: 400px;
  text-align: center;
  backdrop-filter: blur(10px);
}
.login-container h1 {
  margin-bottom: 1.5rem;
}
input {
  width: 100%;
  padding: 0.75rem;
  margin: 0.5rem 0;
  border: none;
  border-radius: 10px;
  font-size: 1rem;
}
button {
  background-color: #ffffff;
  color: #06457c;
  font-weight: bold;
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  width: 100%;
  transition: background-color 0.3s;
}
button:hover {
  background-color: #eeeeee;
}
.error {
  color: #ffd1d1;
  margin-top: 0.5rem;
  font-size: 0.9rem;
}