woocommerce-paypal-payments/modules/ppcp-settings/resources/css/components/reusable-components/_navigation.scss

$margin_bottom: 48px;

.ppcp-r-navigation-container {
	// Theming.
	--wp-components-color-accent: #{$color-blueberry};
	--color-text: #{$color-gray-900};
	--color-disabled: #CCC;
	--navbar-height: 40px;
	--navbar-vertical-padding: 10px;
	--subnavigation-height: 40px;

	// Styling.
	position: sticky;
	top: var(--wp-admin--admin-bar--height);
	z-index: 10;

	padding: 0 48px;
	margin: 0 -20px #{$margin_bottom} -20px;

	box-shadow: 0 -1px 0 0 $color-gray-300 inset;
	background: var(--ppcp-color-app-bg);
	transition: box-shadow 0.3s;

	.ppcp-r-navigation {
		display: flex;
		justify-content: space-between;
		align-items: center;
		flex-direction: row;
		height: calc(var(--navbar-height) + (2 * var(--navbar-vertical-padding)));
		padding: var(--navbar-vertical-padding) 0;

		.components-button {
			@include font(13, 20, 400);

			&.is-primary {
				background-color: var(--wp-components-color-accent);
				padding: 10px 16px;
				justify-content: center;
				margin: 0 0 0 12px;
				border-radius: 2px;

				&:disabled {
					background-color: var(--color-disabled);
				}
			}

			&.is-link {
				color: var(--wp-components-color-accent);
				text-decoration: none;

				&:disabled {
					color: var(--color-disabled);
				}
			}

			&.is-title {
				@include font(16, 24, 600);
				color: var(--color-text);

				.ppcp--nav-title {
					margin-left: 18px;
				}

				.ppcp--big {
					@include font(20, 28, 400);
				}
			}
		}
	}

	.ppcp-r-navigation--left {
		align-items: center;
		display: inline-flex;
	}

	.ppcp-r-navigation--right {
		.is-link {
			padding: 10px 16px;
		}
	}

	.ppcp-r-navigation--progress-bar {
		position: absolute;
		bottom: 0;
		left: 0;
		background-color: var(--wp-components-color-accent);
		height: 4px;
		transition: width 0.3s;
	}

	&.ppcp--is-scrolled {
		box-shadow: 0 -1px 0 0 $color-gray-300 inset, 0 8px 8px 0 rgba(85, 93, 102, .3);
	}

	.ppcp--top-sub-navigation {
		height: var(--subnavigation-height);
		margin: 0;
		padding: 0;

		.ppcp-r-tabs {
			margin: 0;
		}

		.components-tab-panel__tabs-item {
			height: var(--subnavigation-height);
		}
	}

	@media screen and (max-width: 782px) {
		padding: 10px 12px;

		.ppcp-r-navigation {
			row-gap: 8px;
			white-space: nowrap;

			.ppcp-r-navigation--right {
				position: absolute;
				right: 10px;
				z-index: 10;
				background: var(--ppcp-color-app-bg);
				box-shadow: -5px 0 8px var(--ppcp-color-app-bg);
			}

			.ppcp-r-navigation--progress-bar {
				height: 2px;
			}

			.components-button.is-title {
				.ppcp--title {
					margin-left: 4px;
				}
			}
		}
	}
}