body {
    font-family: 'Poppins', Arial, sans-serif;
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.5s ease-out, transform 0.5s ease-out;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

#mobile-menu.active {
    display: block;
}