themes-wordpress/rainfall/style.css

/*
Theme Name: Rainfall
Theme URI:https://wordpress.com/theme/rainfall/
Author: Automattic
Author URI: https://automattic.com
Description: Rainfall is a clean, objective blogging theme strongly inspired by Swiss Design. Its minimalist functionality is balanced by a strong accent color, beautiful photography and post templates with sidebars.
Requires at least: 6.0
Tested up to: 6.1
Requires PHP: 5.7
Version: 1.0.6
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: rainfall
Tags: two-columns, custom-colors, custom-menu, custom-logo, editor-style, featured-images, full-site-editing, block-patterns, rtl-language-support, theme-options, threaded-comments, translation-ready, auto-loading-homepage, blog-homepage, blog, news
*/

/**
 * Post title indent
 */
.indented-post-title {
	margin-left: 1ch;
	text-indent: -1ch;
 }

/**
 * Comment form elements
 */
.wp-block-post-comments-form input:not([type=submit],[type=checkbox]),
.wp-block-post-comments-form textarea,
.wp-block-post-comments-form select {
	background-color: var(--wp--preset--color--black);
	color: var(--wp--preset--color--black);
	border: 1px solid var(--wp--preset--color--white);
}

/**
 * Navigation on dark background
 */

.has-orange-background-color .has-black-background-color .wp-block-navigation-item  a:where(:not(.wp-element-button)):active {
	color: var(--wp--preset--color--brown);
}

.has-black-background-color .wp-block-navigation-item  a:where(:not(.wp-element-button)):active {
	color: var(--wp--preset--color--orange);
}


/**
 * Search input on dark background
 */
.has-black-background-color .wp-block-search__input {
	background-color: var(--wp--preset--color--black);
	border: 1px solid var(--wp--preset--color--white);
	color: var(--wp-preset--color--white);
}

/*
* Button styles on dark background
*/
.has-black-background-color .wp-block-file .wp-block-file__button,
.has-black-background-color .wp-block-button__link {
	background-color: var(--wp--preset--color--white);
	border-color: var(--wp--preset--color--white);
	color: var(--wp--preset--color--black);
}

.has-black-background-color .wp-block-file .wp-block-file__button:hover,
.has-black-background-color .wp-block-button__link:hover,
.has-black-background-color .wp-block-file .wp-block-file__button:focus,
.has-black-background-color .wp-block-button__link:focus {
	background-color: var(--wp--preset--color--dark-grey);
	border-color: var(--wp--preset--color--dark-grey);
	color: var(--wp--preset--color--white);
}

.has-black-background-color .wp-block-file .wp-block-file__button:active,
.has-black-background-color .wp-block-button__link:active {
	background-color: var(--wp--preset--color--light-grey);
	border-color: var(--wp--preset--color--light-grey);
	color: var(--wp--preset--color--black);
}

/* Footer Navigation */
footer .wp-block-navigation__container {
	row-gap: 1rem;
}

/** Navigation Current Menu Item
 * Needed until this is addressed: https://github.com/WordPress/gutenberg/issues/42299
 */
.wp-block-navigation-item.current-menu-item > a {
	font-weight: 700;
}

/** Navigation Overlay
 * Needed until this is addressed: https://github.com/WordPress/gutenberg/issues/39142
 */
.wp-block-navigation__responsive-container.is-menu-open ul {
	font-size: var(--wp--preset--font-size--x-large) !important;
	gap: 0 !important;
}

.wp-block-navigation__responsive-container.is-menu-open .has-child .wp-block-navigation__submenu-container {
	padding-top: 0;
}

.wp-block-navigation__responsive-container.has-white-color.has-black-background-color.is-menu-open a:active {
	color: var(--wp--preset--color--orange);
}