@import 'mediawiki.ui/variables';

@font-size-root: 100%;
@font-size-browser: 16; // Assumed browser default of `16px`

@font-family-serif: 'Linux Libertine', 'Georgia', 'Times', serif;
// FIXME: Use WikimediaUI Base's OS specific default sans-serif fonts.
@font-family-sans: sans-serif;
@font-family-sans--fallback: sans-serif;

// Page content
@background-color-base: #fff;
@color-base: #222;
@color-base--emphasized: #000;
@color-link: #0645ad;
@color-link--visited: #0b0080;
@color-link-new: #a55858;
@color-link-selected: @color-base;

@font-size-base: unit( 14 / @font-size-browser, em ); // Equals `0.875em`.
@font-size-reset: @font-size-root;
@font-size-heading-1: 1.8em;
@font-size-heading-2: 1.5em;
@font-size-heading-3: 1.2em;
@font-size-notification: 0.8em;
@font-size-site-notice: 0.8em;
@line-height-base: 1.6;
@line-height-heading: 1.3;
@line-height-code: 1.3;
@line-height-footer-info: 1.4;
@line-height-footer-buttons: 2;

// FIXME: Use global variable since Echo and CentralNotice use this variable
@border-color-content: #a7d7f9;
// Due to darker background gradient, border needs to be darkened for aligned visual perception.
@border-color-content--tabs-inactive: darken( @border-color-content, 10% );
@content-line-height: 1.6;
@padding-content: 1em;

// Navigation
@background-color-secondary: #f6f6f6;
@color-nav-subtle: #444;
// Navigation `line-height` has to be set in `em`s due to a rendering calculation issue.
@line-height-nav: 1.125em;

// Navigation: Main
@font-size-nav-main: inherit;

@font-size-nav-main-heading: unit( 12 / @font-size-browser, em ); // Equals `0.75em`.

@font-size-nav-main-body: unit( 12 / @font-size-browser, em );
@margin-left-nav-main-body: 0.5em;

// Navigation: Personal tools
@background-position-nav-personal-icon: left ( 4 / @font-size-browser / @font-size-nav-personal );
@background-size-nav-personal-icon: 14 / @font-size-browser / @font-size-nav-personal;
@font-size-nav-personal: 0.75em;
// Using `unit()` without second parameter to achieve a unitless output for `line-height`.
@line-height-nav-personal: unit( 14 / @font-size-browser / @font-size-nav-personal ); // Equals `1.667`.

// Tabs
@font-size-tabs: unit( 13 / @font-size-browser, em ); // Equals `0.8125em`.

// Search
@width-search-button: 24 / @font-size-browser / @font-size-search-input;
@font-size-search-input: unit( 13 / @font-size-browser, em ); // Equals `0.8125em`.

// Footer
// FIXME: Currently calculates at 11.2px, which is worth nothing and unreadable for a big
// part of our audiences. Push up _at least_ to 12px.
@font-size-footer: 0.7em;