/*
 * Citizen
 *
 * All LESS variables used in the skin must be defined here
 * Use CSS variables from cssvariables.less is preferrable
 * Only import this stylesheet when LESS variables is nessecary
 *
 * Related files:
 * - Citizen CSS variables: skins.citizen.styles/common/cssvariables.less
 * - Override MW skin default variables: mediawiki.less/mediawiki.skin.variables.less
 *
*/

/* Imports */
/*
 * MediaWiki mixins
 * @see https://github.com/wikimedia/mediawiki/blob/master/resources/src/mediawiki.less/mediawiki.mixins.less
 */
@import 'mediawiki.mixins';
/*
 * MediaWiki skin variables
 * mediawiki.less/mediawiki.skin.variables.less
 * @see https://github.com/wikimedia/mediawiki/blob/master/resources/src/mediawiki.less/mediawiki.skin.defaults.less
 */
@import 'mediawiki.skin.variables.less';

/* == Spacing == */
@space-unit: 1rem;
@line-height-xs: 1.25;
@line-height-sm: 1.375;
@line-height-md: 1.6;

/* == Fonts == */
/*
 * --font-family-citizen-base-xx are default fonts prioritized by Citizen.
 * --font-family-language-xx are language-specific fonts from language RL module.
 * It is empty by default but populated by Citizen language modules such as the CJK one.
 */
// Citizen sans-serif fonts
@font-family-base: var( --font-family-citizen-base ), var( --font-family-language-base ), system-ui, -apple-system, sans-serif;
// Citizen serif fonts
@font-family-serif: var( --font-family-citizen-serif ), var( --font-family-language-serif ), 'Linux Libertine', 'Georgia', 'Times', 'Source Serif Pro', serif;
// Citizen monospace fonts
@font-family-monospace: var( --font-family-citizen-monospace ), var( --font-family-language-monospace ), 'Menlo', 'Consolas', 'Liberation Mono', 'Fira Code', 'Courier New', monospace;

/* == Colors == */
/* Base theme */
@color-primary__h: 220;
@color-primary__s: 60%;
@color-primary__l: 50%;

/*
 * Syntax highlight colors
 * Based on Material Theme Lighter
 * https://material-theme.site
*/
@color-syntax-red: #e53935;
@color-syntax-orange: #f76d47;
@color-syntax-yellow: #e2931d;
@color-syntax-green: #91b859;
@color-syntax-cyan: #39adb5;
@color-syntax-blue: #6182b8;
@color-syntax-paleblue: #8796b0;
@color-syntax-purple: #9c3eda;
@color-syntax-brown: #916b53;
@color-syntax-pink: #ff5370;
@color-syntax-violet: #945eb8;
@color-syntax-grey: #90a4ae;

/*
 * Syntax highlight colors
 * Based on Material Theme Palenight
 * https://material-theme.site
*/
@color-syntax-red-dark: #f07178;
@color-syntax-orange-dark: #f78c6c;
@color-syntax-yellow-dark: #ffcb6b;
@color-syntax-green-dark: #c3e88d;
@color-syntax-cyan-dark: #89ddff;
@color-syntax-blue-dark: #82aaff;
@color-syntax-paleblue-dark: #b2ccd6;
@color-syntax-purple-dark: #c792ea;
@color-syntax-brown-dark: #916b53;
@color-syntax-pink-dark: #ff9cac;
@color-syntax-violet-dark: #bb80b3;
@color-syntax-grey-dark: #676E95;

/* Z-Index */
// @z-index-base: 0; - WMUI
@z-index-page-header: 11;
@z-index-site-header: 91;
@z-index-overlay: 101; // WMUI

/* == Box model properties == */
/* `--*size` variables are used for `*width` & `*height` properties. */
@size-icon:		1.25rem;
// Not in the header section it is also used outside of header
@header-size:	3.5rem;
// 67.5rem at 16px font size
// We use px because it would be frustrating if max-width changes with font size
@width-layout:	1080px;
// TODO: Revise this number, fixed value isn't great but we need it for b
@width-toc: 240px;

/* Paddings */
@padding-page:	16px;

/* Transitions */
@transition-hover: 150ms cubic-bezier( 0.215, 0.61, 0.355, 1 );
@transition-menu: 250ms cubic-bezier( 0.4, 0, 0.2, 1 );

/* Shadow */
/* Box shadow */
// Based on https://web.dev/building-a-color-scheme/#rad-shadow
// TODO: Refactor this to support filter drop-shadow
@box-shadow-card: 0 2.8px 2.2px -4px ~'hsla(var(--surface-shadow), calc(var(--shadow-strength) + .03))', 0 6.7px 5.3px -4px ~'hsla(var(--surface-shadow), calc(var(--shadow-strength) + .01))', 0 12.5px 10px -4px ~'hsla(var(--surface-shadow), calc(var(--shadow-strength) + .02))', 0 22.3px 17.9px -4px ~'hsla(var(--surface-shadow), calc(var(--shadow-strength) + .02))', 0 41.8px 33.4px -4px ~'hsla(var(--surface-shadow), calc(var(--shadow-strength) + .03))', 0 100px 80px -4px ~'hsla(var(--surface-shadow), var(--shadow-strength))';
@box-shadow-dialog: 0 2.8px 2.2px ~'hsla(var(--surface-shadow), calc(var(--shadow-strength) + .03))', 0 6.7px 5.3px ~'hsla(var(--surface-shadow), calc(var(--shadow-strength) + .01))', 0 12.5px 10px ~'hsla(var(--surface-shadow), calc(var(--shadow-strength) + .02))', 0 22.3px 17.9px ~'hsla(var(--surface-shadow), calc(var(--shadow-strength) + .02))', 0 41.8px 33.4px ~'hsla(var(--surface-shadow), calc(var(--shadow-strength) + .03))', 0 100px 80px ~'hsla(var(--surface-shadow), var(--shadow-strength))';

/*
 * Framework
*/
@html-font-size: 100%;
@icon-size: 1.125rem; // 18px, TODO: Replace this var
@icon-box-size: @icon-size + @icon-margin * 2;
@icon-margin: 3px;

/*
 * Legacy colors
 *
 * They are used by the SMW skinstyles and a few MW UI stuff.
 * Those styles should be updated to the new standard.
 * After that we can remove all theses LESS variables.
*/
@color-base:				#54595d;
@color-base--emphasized:	#202122;
@color-base--subtle:		#72777d;

@color-primary:				#36c;
@color-primary--hover:		#5b84d6;
@color-primary--active:		#2a4b8d;

@dark-bg-10: #1d2129;
@dark-bg-20: #22262d;
@dark-bg-30: #24272f;
@dark-bg-40: #2b2f36;
@dark-bg-50: #33363d;
@dark-bg-60: #34383f;

/*
 * Used by Math and WikiHiero for recolor
 * TODO: Figure out a way to do recolor with CSS variable
 * e.g. If the primary color is changed on wiki, it won't be reflected here.
*/
@dark-color-base:				hsl( @color-primary__h, 25%, 80% );
@dark-color-base--emphasized:	hsl( @color-primary__h, 80%, 95% );
@dark-color-base--subtle:		hsl( @color-primary__h, 25%, 65% );