How can I remove a line from the focal theme?

I want to remove this line can someone help me?

Look image:
https://we.tl/t-U2QiEp4mgq

hi @Storum

Goto theme.css under assets and find below CSS

.header__bottom-navigation {
	padding-top: calc(17px - var(--reduce-header-padding) * 8px);
	padding-bottom: calc(19px - var(--reduce-header-padding) * 8px);
	border-top: 1px solid rgb(var(--header-border-color));
	transition: border-top .2s ease-in-out;
}

Replace it by below one

.header__bottom-navigation {
	padding-top: calc(17px - var(--reduce-header-padding) * 8px);
	padding-bottom: calc(19px - var(--reduce-header-padding) * 8px);
	border-top: 0px solid rgb(var(--header-border-color));
	transition: border-top .2s ease-in-out;
}

Working solution screenshot

Thanks!