KNACSS/css/grillade.less

/*!
* www.KNACSS.com V4.4.4 (23 janvier 2016) @author: Raphael Goetter, Alsacreations
* Licence WTFPL http://www.wtfpl.net/
*/

// Config file and project variables

// font sizes
@base-font-size : 1.4rem; // ex. 1.4rem would be "14px" equivalent
@line-height    : 1.5; // equiv line-height 1.5
@h1-size        : 3.2rem; // equiv "32px"
@h2-size        : 2.8rem; // equiv "28px"
@h3-size        : 2.4rem; // equiv "24px"
@h4-size        : 2.0rem; // equiv "20px"
@h5-size        : 1.8rem; // equiv "18px"
@h6-size        : 1.6rem; // equiv "16px"

// font stacks
@font-stack-common      : sans-serif; // common font
@font-stack-headings    : sans-serif; // headings font
@font-stack-monospace   : consolas, courier, monospace; // monospace font

// font colors
@base-color             : #000; // text color on body and content
@primary-color          : #000; // text color on primary elements
@secondary-color        : #000; // text color on secondary elements
@headings-color         : #000; // text color on headings
@headings-1-color       : #000; // text color on headings level 1
@headings-2-color       : #000; // text color on headings level 2
@headings-3-color       : #000; // text color on headings level 3
@base-color-link        : #333; // base links color
@base-color-link-hover  : #000; // base hovered/focused links color

// backgrounds
@base-background        : #fff; // body background color
@primary-background     : #fff; // primary elements background color
@secondary-background   : #fff; // secondary elements background color

// spacings (choose unit you prefer)
@tiny-value             : .5rem; // tiny value for margins / paddings
@tiny-plus-value        : .7rem; // tiny+ value for margins / paddings
@small-value            : 1rem; // small value for margins / paddings
@small-plus-value       : 1.5rem; // small+ value for margins / paddings
@medium-value           : 2rem; // medium value for margins / paddings
@medium-plus-value      : 3rem; // medium+ value for margins / paddings
@large-value            : 4rem; // large value for margins / paddings
@large-plus-value       : 6rem; // large value for margins / paddings
@extra-large-value      : 8rem; // extra large value for margins / paddings
@extra-large-plus-value : 12rem; // extra large value for margins / paddings
@ultra-large-value      : 16rem; // ultra large value for margins / paddings
@ultra-large-plus-value : 20rem; // ultra large value for margins / paddings

// breakpoints (choose unit you prefer)
@tiny-screen            : 320px; // tiny screens media query (less-equal than 320px)
@tiny-plus-screen       : 480px; // screens between 321px and 480px
@small-screen           : 640px; // screens between 481px and 640px
@small-plus-screen      : 768px; // screens between 641px and 768px
@medium-screen          : 960px; // screens between 769px and 960px
@medium-plus-screen     : 1024px; // screens between 961px and 1024px
@large-screen           : 1280px; // screens between 1025px and 1280px
@large-plus-screen      : 1440px; // screens between 1281px and 1440px
@extra-large-screen     : 1600px; // screens between 1441px and 1600px
@ultra-large-screen     : 1920px; // ultra large screens

// grids variables (choose unit you prefer)
@gutter:  2rem; // gutter value for grid layouts. Unit can be: %, px, em, rem
@number:  4; // number of equal columns
@left:    2; // left side of uneven columns
@right:   1; // right side of uneven columns

//namespace (default : empty)
@kna-namespace:~"";

/* ---------------------------------- */
/* ==Grillade                         */
/* ---------------------------------- */

// Tuto : http://www.alsacreations.com/tuto/lire/1659-une-grille-responsive-avec-flexbox-et-LESS.html
// Demo : http://codepen.io/raphaelgoetter/pen/zxBMLW

// Usage in vanilla CSS:
// - <div class="grid-4"> for an equal fourth columns grid container
// - <div class="grid-2-1"> for an uneven columns grid container

// Usage with preprocessors : if you're using LESS, you can config grids variables :
// n = number of columns (default = 4)
// example : .grid-perso { .grid(12); }
// ... or uneven grids :
// left = left ratio column (default = 2) / right = right ratio column (default = 1)
// example : .grid-perso { .uneven-grid(2, 1); }

/* grid container */
[class*="@{kna-namespace}grid-"] {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  margin-left: -@gutter;

  /* inline-block fallback for IE9 generation */
  letter-spacing: -0.31em;
}

/* grid childs */
[class*="@{kna-namespace}grid-"] > * {
  box-sizing: border-box;
  flex: 0 0 auto;
  width: ~'calc(100% * 1 / @{number} - @{gutter} - .01px)';
  min-width: 0;
  margin-left: @gutter;

  /* inline-block fallback for IE9 generation */
  display: inline-block;
  vertical-align: top;
  letter-spacing: normal;
}

// LESS mixins for *equal* columns grid container
// example : .grid-perso { .grid(12); }
.grid(@number:@number, @gutter:@gutter) {
  & > * {
    width: ~'calc(100% * 1 / @{number} - @{gutter} - .01px)';
  }
  & > .@{kna-namespace}flex-item-double {
    width: ~'calc(100% * 2 / @{number} - @{gutter} - .01px)';
  }
}

// Examples : will be compiled in CSS
[class*="@{kna-namespace}grid-2"] {
  .grid(2);
}
[class*="@{kna-namespace}grid-3"] {
  .grid(3);
}
[class*="@{kna-namespace}grid-4"] {
  .grid(4);
}
[class*="@{kna-namespace}grid-5"] {
  .grid(5);
}
[class*="@{kna-namespace}grid-6"] {
  .grid(6);
}
[class*="@{kna-namespace}grid-7"] {
  .grid(7);
}
[class*="@{kna-namespace}grid-8"] {
  .grid(8);
}
[class*="@{kna-namespace}grid-10"] {
  .grid(10);
}
[class*="@{kna-namespace}grid-12"] {
  .grid(12);
}

/* Responsive grid */
// "small-2" = 2 columns when small screen
// example : .grid-4-small-2 will be 4 then 2 columns
@media (max-width: @small-screen) {
  [class*="-small-4"] > * {
    width: ~'calc(100% * 1 / 4 - @{gutter} - .01px)';
  }
  [class*="-small-4"] > .flex-item-double {
    width: ~'calc(100% * 1 / 2 - @{gutter} - .01px)';
  }
  [class*="-small-3"] > * {
    width: ~'calc(100% * 1 / 3 - @{gutter} - .01px)';
  }
  [class*="-small-3"] > .flex-item-double {
    width: ~'calc(100% * 2 / 3 - @{gutter} - .01px)';
  }
  [class*="-small-2"] > * {
    width: ~'calc(100% * 1 / 2 - @{gutter} - .01px)';
  }
  [class*="-small-2"] > .flex-item-double {
    width: ~'calc(100% - @{gutter} - .01px)';
  }
  [class*="-small-1"] > * {
    width: ~'calc(100% - @{gutter} - .01px)';
  }
  [class*="-small-1"] > .flex-item-double {
    width: ~'calc(100% - @{gutter} - .01px)';
  }
}
// "tiny-1" = 1 column when tiny screen
// example : .grid-4-small-2-tiny-1 will be 4 then 2 columns then 1 column
@media (max-width: @tiny-screen) {
  [class*="-tiny-2"] > * {
    width: ~'calc(100% * 1 / 2 - @{gutter} - .01px)';
  }
  [class*="-tiny-2"] > .flex-item-double {
    width: ~'calc(100% - @{gutter} - .01px)';
  }
  [class*="-tiny-1"] > * {
    width: ~'calc(100% - @{gutter} - .01px)';
  }
  [class*="-tiny-1"] > .flex-item-double {
    width: ~'calc(100% - @{gutter} - .01px)';
  }
}

// LESS mixins for *unequal* columns grid container
// example : .grid-perso { .uneven-grid(2, 1); }
.uneven-grid(@left:@left, @right:@right, @gutter:@gutter) {
  & > *:nth-child(odd) {
    @size: (@left / (@left + @right)) * 100%;
    width: ~'calc(@{size} - @{gutter} - .01px)';
  }
  & > *:nth-child(even) {
    @size: (@right / (@left + @right)) * 100%;
    width: ~'calc(@{size} - @{gutter} - .01px)';
  }
  @media (max-width: @small-screen) {
    & > *:nth-child(n) {
      width: ~'calc(100% - @{gutter} - .01px)';
    }
  }
}

// Examples : will be compiled in CSS
.@{kna-namespace}grid-2-1 {
  .uneven-grid(2,1);
}
.@{kna-namespace}grid-1-2 {
  .uneven-grid(1,2);
}
.@{kna-namespace}grid-3-1 {
  .uneven-grid(3,1);
}
.@{kna-namespace}grid-1-3 {
  .uneven-grid(1,3);
}
.@{kna-namespace}grid-3-2 {
  .uneven-grid(3,2);
}
.@{kna-namespace}grid-2-3 {
  .uneven-grid(2,3);
}
.@{kna-namespace}grid-4-1 {
  .uneven-grid(4,1);
}
.@{kna-namespace}grid-1-4 {
  .uneven-grid(1,4);
}

.@{kna-namespace}pull {
  margin-right: auto;
}
.@{kna-namespace}push {
  margin-left: auto;
}