body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
}

#login-form {
    width: 300px;
    margin: 0 auto;
    padding: 30px;
    background-color: #ffffff;
    border: 1px solid #cccccc;
    border-radius: 4px;
}

#login-form h1 {
    text-align: center;
    margin-bottom: 20px;
}

#login-form input {
    width: 100%;
    padding: 10px;
    margin-bottom: 10px;
    border: 1px solid #cccccc;
    border-radius: 4px;
}

#login-form button {
    width: 100%;
    padding: 10px;
    background-color: #007BFF;
    border: none;
    color: #ffffff;
    cursor: pointer;
}

.remember-label {
    display: inline-flex;
    align-items: center;
}

#login-form label {
    display: flex;
    align-items: center;
    margin-bottom: 10px;
}

#login-form label input[type="checkbox"] {
    width: auto;
    margin-right: 5px;
}
.error {
    color: #FF0000; /* red */
    font-weight: bold;
}

header {
    display: flex;
    justify-content: space-between;
    padding: 20px;
}

#logout-form {
    margin: 0;
}

footer {
    display: flex;
    justify-content: flex-start;
    padding: 20px;
    background-color: #f8f9fa;
}

footer a:not(:last-child) {
    margin-right: 10px;
}

.rectangle {
    height: 10px;
    width: 100%;
    margin-bottom: 5px;
}

#header-background {
    display: flex;
    flex-direction: column;
    background-color: #007BFF;
}

.rectangle-gray {
    background: linear-gradient(to right, #717171, #ffffff, #717171);
}

.rectangle-blue {
    background-color: #0057A3;
}

.rectangle-red {
    background-color: #D12027;
}