// Core variables

// Global
@html-font-size: 20px;
@html-line-height: 1.428571429;
@body-bg: @bg-color-light;
@body-font-color: lighten(@dark-color, 5%);
@font-size: .7rem;
@font-size-sm: .6rem;
@font-size-lg: .8rem;
@line-height: 1rem;

// Fonts
// Credit: https://www.smashingmagazine.com/2015/11/using-system-ui-fonts-practical-guide/
@base-font-family: -apple-system, system-ui, BlinkMacSystemFont, "Segoe UI", Roboto;
@mono-font-family: "SF Mono", "Segoe UI Mono", "Roboto Mono", Menlo, Courier, monospace;
@fallback-font-family: "Helvetica Neue", sans-serif;
@cjk-zh-font-family: @base-font-family, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", @fallback-font-family;
@cjk-jp-font-family: @base-font-family, "Hiragino Sans", "Hiragino Kaku Gothic Pro", "Yu Gothic", YuGothic, Meiryo, @fallback-font-family;
@cjk-ko-font-family: @base-font-family, "Malgun Gothic", @fallback-font-family;
@body-font-family: @base-font-family, @fallback-font-family;

// Unit sizes
@unit-o: .05rem;
@unit-h: .1rem;
@unit-1: .2rem;
@unit-2: .4rem;
@unit-3: .6rem;
@unit-4: .8rem;
@unit-5: 1rem;
@unit-6: 1.2rem;
@unit-7: 1.4rem;
@unit-8: 1.6rem;
@unit-9: 1.8rem;
@unit-10: 2rem;
@unit-12: 2.4rem;
@unit-16: 3.2rem;

// Sizes
@layout-spacing: @unit-2;
@layout-spacing-sm: @unit-1;
@layout-spacing-lg: @unit-4;
@control-size: @unit-8;
@control-size-sm: @unit-6;
@control-size-lg: @unit-10;
@control-padding-h: @unit-2;
@control-padding-v: (@control-size - @line-height) / 2 - @border-width;
@control-padding-v-sm: (@control-size-sm - @line-height) / 2 - @border-width;
@control-padding-v-lg: (@control-size-lg - @line-height) / 2 - @border-width;
@control-icon-size: .7rem; 
@control-min-width: 180px;
@control-max-width: 320px;
@border-radius: @unit-h;
@border-width: @unit-o;
@border-width-lg: @unit-h;

// Colors
// Core colors
@primary-color: #5764c6;
@primary-color-dark: darken(@primary-color, 3%);
@primary-color-light: lighten(@primary-color, 3%);
@secondary-color: lighten(@primary-color, 40%);
@secondary-color-dark: darken(@secondary-color, 3%);
@secondary-color-light: lighten(@secondary-color, 3%);

@link-color: @primary-color;
@link-color-dark: darken(@link-color, 5%);

// Gray colors
@dark-color: #454d5d;
@light-color: #fff;
@gray-color: lighten(@dark-color, 40%);
@gray-color-dark: darken(@gray-color, 20%);
@gray-color-light: lighten(@gray-color, 20%);

@border-color: lighten(@dark-color, 60%);
@border-color-dark: darken(@border-color, 10%);
@bg-color: lighten(@dark-color, 66%);
@bg-color-dark: darken(@bg-color, 3%);
@bg-color-light: @light-color;

// Control colors
@success-color: #32b643;
@warning-color: #ffb700;
@error-color: #e85600;

// Other colors
@code-color: #e06870;
@highlight-color: #ffe9b3;

// Responsive breakpoints
@size-xs: 480px;
@size-sm: 600px;
@size-md: 840px;
@size-lg: 960px;
@size-xl: 1280px;
@size-2x: 1440px;

// Z-index
@zindex-0: 1;
@zindex-1: 100;
@zindex-2: 200;
@zindex-3: 300;
@zindex-4: 400;