/** 
* Make flexbox grids super easy!
* ---
* @param $cols  —  Number of columns
* @param $margin  —  Margin with unit
*/

@mixin flexgrid($cols, $margin) {
  $width: (100% / $cols);
  $calc-margin: (($margin * $cols) - $margin) / $cols;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  &:after {
    flex: auto;
    margin: 0 auto;
    content: "";
  }
  >* {
    width: calc( #{$width} - #{$calc-margin} );
    margin-left: $margin / 2;
    margin-right: $margin/ 2;
    &:nth-child(1) {
      margin-left: 0;
    }
    &:nth-child(#{$cols}n) {
      margin-right: 0;
    }
    &:nth-child(#{$cols}n + 1) {
      margin-left: 0;
    }
  }
}

.flexgrid { // Namespace for Demo
  .container {
    @media screen and (min-width: 600px) and (max-width: 799px) {
      @include flexgrid(2, 1rem);
    }
    @media screen and (min-width: 800px) and (max-width: 999px) {
      @include flexgrid(3, 1rem);
    }
    @media screen and (min-width: 1000px) {
      @include flexgrid(4, 1rem);
    }
  }
}























































/* 
* Demo Styles
*/
.flexgrid {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-feature-settings: "liga", "kern";
  overflow-y: scroll;
  overflow-x: hidden;
  width: 100%;
  *, *:before, *:after {
    box-sizing: border-box;
  }
  body {
    min-height: 100vh;
    font-family: 'Baloo Tamma', cursive;
    text-align: center;
    text-transform: uppercase;
    line-height: 1;
    overflow: hidden;
  }

  .container {
    padding: 0 1rem;
  }

  .title {
    font-family: 'Baloo Tamma', cursive;
    font-size: 300%;
    padding: 2rem 1rem;
  }

  .thing {
    color: #FEFEFE;
    font-size: 200%;
    padding: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 150px;
    margin-bottom: 1rem;
    cursor: pointer;
    box-shadow: 0 2.5px 5px rgba(25, 25, 25, 0.1);
    background: #1dd2af;
    background: linear-gradient(to bottom, #1dd2af, #17a689);
    &:hover {
      animation-name: shake;
      animation-duration: 1s;
      animation-iteration-count: infinite;
    }
    &:nth-child(1), 
    &:nth-child(4), 
    &:nth-child(7),
    &:nth-child(10) {
      background: #fed26a;
      background: linear-gradient(to bottom, #fed26a, #fec238);
      &:hover {
        animation-name: bounce;
      }
    }
    &:nth-child(2), 
    &:nth-child(5), 
    &:nth-child(9),
    &:nth-child(14) {
      background: #7ad0ff;
      background: linear-gradient(to bottom, #7ad0ff, #47beff);
      &:hover {
        animation-name: swing;
      }
    }
    &:nth-child(3), 
    &:nth-child(6), 
    &:nth-child(12) {
      background: #df6974;
      background: linear-gradient(to bottom, #df6974, #d73f4e);
      &:hover {
        animation-name: tada;
      }
    }
  }

  .emoji {
    font-size: 200%;
    transform: translateY(20%);
  }

  @keyframes bounce {
    from, 20%, 53%, 80%, to {
      animation-timing-function: cubic-bezier(0.215, 0.610, 0.355, 1.000);
      transform: translate3d(0,0,0);
    }

    40%, 43% {
      animation-timing-function: cubic-bezier(0.755, 0.050, 0.855, 0.060);
      transform: translate3d(0, -30px, 0);
    }

    70% {
      animation-timing-function: cubic-bezier(0.755, 0.050, 0.855, 0.060);
      transform: translate3d(0, -15px, 0);
    }

    90% {
      transform: translate3d(0,-4px,0);
    }
  }


  @keyframes shake {
    from, to {
      transform: translate3d(0, 0, 0);
    }

    10%, 30%, 50%, 70%, 90% {
      transform: translate3d(-10px, 0, 0);
    }

    20%, 40%, 60%, 80% {
      transform: translate3d(10px, 0, 0);
    }
  }

  .shake {
    animation-name: shake;
  }


  @keyframes swing {
    20% {
      transform: rotate3d(0, 0, 1, 15deg);
    }

    40% {
      transform: rotate3d(0, 0, 1, -10deg);
    }

    60% {
      transform: rotate3d(0, 0, 1, 5deg);
    }

    80% {
      transform: rotate3d(0, 0, 1, -5deg);
    }

    to {
      transform: rotate3d(0, 0, 1, 0deg);
    }
  }


  @keyframes tada {
    from {
      transform: scale3d(1, 1, 1);
    }

    10%, 20% {
      transform: scale3d(.9, .9, .9) rotate3d(0, 0, 1, -3deg);
    }

    30%, 50%, 70%, 90% {
      transform: scale3d(1.1, 1.1, 1.1) rotate3d(0, 0, 1, 3deg);
    }

    40%, 60%, 80% {
      transform: scale3d(1.1, 1.1, 1.1) rotate3d(0, 0, 1, -3deg);
    }

    to {
      transform: scale3d(1, 1, 1);
    }
  }
}