github-monday by karl255

/* ==UserStyle==
@name         github-monday
@author       Karl_255
@namespace    github.com/Karl255
@version      1.0.4
@description  Changes the GitHub contribution graph's first day of week on user profiles to Monday instead of Sunday.
@homepageURL  https://github.com/Karl255/UserCSS-Styles
@supportURL   https://github.com/Karl255/UserCSS-Styles/issues
@license      unlicense
@preprocessor default
==/UserStyle== */

@-moz-document domain("github.com") {
	/* when the activity overview is enabled the grid rects are 10px * 10px (3px spacing) */
	.ContributionCalendar-grid[style*="border-spacing: 3px"] {
		--dist: 13px;
	}

	/* but when it's disabled, they're 11px * 11px (4px spacing) */
	.ContributionCalendar-grid[style*="border-spacing: 4px"] {
		--dist: 15px;
	}

	/* all days up a little */
	.ContributionCalendar-grid tbody tr {
		transform: translateY(calc(var(--dist) * -1));
	}

	/* all sundays all the way down */
	.ContributionCalendar-grid tbody tr:first-child {
		transform: translateY(calc(var(--dist) * 6));
	}

	/* hide first sunday (otherwise it'll be outside the box) */
	.ContributionCalendar-grid tbody tr:first-child .ContributionCalendar-label + * {
		display: none;
	}

	/* show sunday text */
	.ContributionCalendar-grid tbody tr:first-child .ContributionCalendar-label span:last-child  {
		clip-path: unset !important;
	}
}