body {
    font-family: Arial, sans-serif;
    background: linear-gradient(135deg, #74ebd5, #ACB6E5);
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}
.form-container {
    background: #fff;
    padding: 25px;
    border-radius: 10px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.2);
    width: 100%;
    max-width: 400px;
}
form input, form button {
    width: 100%;
    padding: 12px;
    margin: 8px 0;
    border-radius: 5px;
    border: 1px solid #ccc;
}
form button {
    background: #4CAF50;
    color: white;
    border: none;
    cursor: pointer;
}
form button:hover {
    background: #45a049;
}
.error { color: red; }
@media (max-width: 600px) {
    .form-container { width: 90%; }
}