themes-wordpress/calm-business/sass/site/header/_site-header.scss

// Site header

.site-header {
	padding: 1rem 1em 0.75rem;
	text-align: center;
	&.featured-image {
		display: flex;
		flex-direction: column;
		justify-content: space-between;
		min-height: 90vh;

		.site-branding-container {
			margin-bottom: auto;
		}
	}

	@include media(tablet) {
		margin: 0;
		padding: 2rem 0 1.5rem;

		&.featured-image {
			min-height: 100vh;
			margin-bottom: 3rem;
		}
	}
}

// Site branding

.site-branding {

	color: $color__text-light;
	position: relative;

	@include media(tablet) {
		margin: 0 $size__site-margins;
	}
}

// Site logo

.site-logo {

	position: relative;
	z-index: 999;

	display: inline-block;
    margin-bottom: 0.5rem;

	@include media(tablet) {
		margin-bottom: 1rem;
		z-index: 999;
	}

	.custom-logo-link {
		box-sizing: content-box;
		overflow: hidden;
		display: block;

		.custom-logo {
			min-height: inherit;
			max-height: 66px;
    		vertical-align: top;
			width: auto;
			@include media(tablet) {
				max-height: 88px;
			}
		}
	}
}

// Site title

.site-title,
.site-title.wp-block-a8c-site-title,
.site-title.wp-block-a8c-site-title:focus {
	margin: 0;
	display: block;
	color: $color__text-main;
	font-size: $font__size-lg;
	a {
		color: $color__text-main;

		&:link,
		&:visited {
			color: $color__text-main;
		}

		&:hover {
			color: $color__text-hover;
		}
	}

	.featured-image & {
		margin: 0;
	}

	/* When there is no description set, make sure navigation appears below title. */
	+ .main-navigation {
		display: block;
	}

	@include media(tablet) {
		display: block;
	}

}

// Site description

.site-description,
.block-editor .wp-block-a8c-site-description,
.wp-block-a8c-site-description,
.wp-block-a8c-site-description:focus {

	display: block;
	color: $color__text-main;
	font-weight: normal;
	margin: 8px 0 0;
}