body {
  margin: 0;
  font-family: 'Segoe UI', sans-serif;
  background: linear-gradient(180deg, #2196f3, #21cbf3);
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
}
.login-container {
  background: white;
  padding: 30px 20px;
  border-radius: 15px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.2);
  width: 90%;
  max-width: 320px;
  text-align: center;
}
.login-container h1 {
  margin-bottom: 20px;
  color: #2196f3;
}
input[type="text"], input[type="password"] {
  width: 90%;
  padding: 10px;
  margin: 10px 0;
  border: 1px solid #ccc;
  border-radius: 8px;
}
button {
  width: 95%;
  padding: 10px;
  background-color: #2196f3;
  color: white;
  border: none;
  border-radius: 8px;
  font-size: 16px;
  margin-top: 10px;
}
button:hover {
  background-color: #1976d2;
}
label.remember {
  display: block;
  margin-top: 10px;
  font-size: 14px;
}
#error-msg {
  color: red;
  margin-top: 10px;
  font-size: 14px;
}