body {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    font-family: Arial, sans-serif;
    background-color: #e9ecef;
}
.container {
    background: #fff;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    width: 90%;
    max-width: 400px;
}
h1 {
    text-align: center;
    color: #333;
}
form {
    display: flex;
    flex-direction: column;
    gap: 15px;
}
label {
    font-size: 14px;
    color: #555;
}
input[type="text"],
input[type="password"] {
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 14px;
}
button {
    padding: 10px 20px;
    background-color: #007bff;
    color: #fff;
    font-size: 16px;
    font-weight: bold;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}
button:hover {
    background-color: #0056b3;
}
.login-link {
    display: block;
    text-align: center;
    margin-top: 20px;
    font-size: 14px;
    color: #007bff;
    text-decoration: none;
}
.login-link:hover {
    color: #0056b3;
}
#backgroundCanvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -1;
    pointer-events: none;
    background: linear-gradient(135deg, #f7f9fc, #e9ecef);
}
input.error {
    border-color: red;
}