/* tame reveal.js */
section {
	min-height: 100vh;
	width: 100vw;
	padding: 0 !important;
}

/* config */
:root {
  --secondary: #c8ceda;
}

/* basic layout */
:root {
  --square: 100vw;
  @media screen and (min-aspect-ratio: 1/1) {
    --square: 50vw;
  }
  @media screen and (min-aspect-ratio: 2/1) {
    --square: 100vh;
  }
}

body {
  font-size: calc(0.035 * var(--square));
  .layout-content-and-preview {
    display: grid;
    grid-template-rows: var(--square) auto;
    grid-template-columns: auto;
    grid-template-areas:
    "content"
    "preview";
    min-height: 100vh;
    max-height: 100vh;
    min-width: 100vw;
    max-width: 100vw;
    overflow: auto;
    .layout-content {
      background: white;
      grid-area: content;
    }
    .layout-preview {
      grid-area: preview;
      display: flex;
      align-items: center;
      justify-content: center;
      background: var(--secondary);
      img {
        width: auto;
        height: auto;
        max-width: 90%;
        max-height: 90%;
        box-shadow: .2em .2em .5em 0 rgba(0, 0, 0, .3);
      }
    }
  }
}
@media screen and (min-aspect-ratio: 1/1) {
  body {
    font-size: calc(0.035 * var(--square));
    .layout-content-and-preview {
      grid-template-rows: auto var(--square) auto;
      grid-template-columns: var(--square) auto;
      grid-template-areas:
        "   .    preview"
        "content preview"
        "   .    preview";
    }
  }
}
@media screen and (min-aspect-ratio: 2/1) {
  body {
    font-size: calc(0.035 * var(--square));
    .layout-content-and-preview {
      grid-template-rows: var(--square);
      grid-template-columns: var(--square) auto;
      grid-template-areas:
        "content preview";
    }
  }
}

/* content layout */

@import url('https://free.bboxtype.com/embedfonts/?family=FiraSans:300,600');
@font-face {
  font-family: 'Fira Code';
  src: url('../../lib/font/fira-code/FiraCode-Regular.otf');
  font-weight: 400;
}
@font-face {
  font-family: 'Fira Code';
  src: url('../../lib/font/fira-code/FiraCode-Bold.otf');
  font-weight: 700;
}
body {
  font-family: 'Fira Sans';
  margin: 0;
  line-height: 1.2em;
}

.layout-content-and-preview {
   --margin: 0.1;

  .layout-content {
    overflow: auto;
    padding: calc(var(--margin) * var(--square));

    *:first-child {
      margin-top: 0;
    }

    .layout-title {
      padding: calc(0.3 * var(--margin) * var(--square)) 0;
      line-height: 1.15em;

      h2 {
        margin: 0;
      }
    }

    ul {
      list-style-type: none;
      padding-left: 0;
      position: relative;
      li::before {
        content: '▪';
        color: var(--secondary);
        position: absolute;
        left: calc(-0.33 * var(--margin) * var(--square));
      }
      ul {
        margin-left: calc(0.33 * var(--margin) * var(--square));
      }
    }

    pre {
      margin-left: calc(-1 * var(--margin) * var(--square));
      padding-left: calc(var(--margin) * var(--square));
      line-height: 1.2em;
      position: relative;
      overflow: hidden;
      &::before {
        content: attr(data-sourcefile);
        position: absolute;
        text-align: right;
        color: var(--secondary);
        top: .85em;
        width: 100%;
        left: calc(-1 * var(--square) + 1.2 * var(--margin) * var(--square));
        transform-origin: top right;
        transform: rotate(-90deg);
    }

    code {
      font-size: 0.9em;
      font-family: 'Fira Code';
    }

    code.hljs {
      padding: .3em 0;
    }
  }
}

.layout.layout-chapter-heading {
	height: 100vh;
	width: 100vw;
	position: relative;

	.layout-title {
		position: absolute;
		left: 2vw;
		width: calc(100vw - 4vw);
		text-align: center;
		bottom: calc(38.2% - .5em);
	}
}

h1 { font-size: 300%; }