:root {
    --surface-color: #fff;
    --accent-color: #0d6efd;
    --heading-color: #212529;
    --default-color: #000;
}

html body {
    height: 100%;
}

body {
    background-color: #f8f9fa;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    font-family: 'Cairo', sans-serif;
}

footer {
    font-family: 'Cairo', sans-serif;
    background-color: #343a40;
    color: #fff;
    padding: 15px 0;
    text-align: center;
    margin-top: 40px;
}

.navbar-brand {
    font-weight: bold;
}

main {
    flex: 1;
}