sass-site/source/assets/sass/visual-design/_typography.scss

@use 'sass:math';

@use '../breakpoints';
@use '../functions';

$sl-font-weight--light: 300 !default;
$sl-font-weight--regular: 400 !default;
$sl-font-weight--bold: 600 !default;
$sl-font-weights: (
  light: $sl-font-weight--light,
  regular: $sl-font-weight--regular,
  bold: $sl-font-weight--bold,
);

@each $name, $value in $sl-font-weights {
  .sl-font-weight--#{$name} {
    font-weight: $value;
  }
}

$sl-font-family--text: 'Source Sans Pro', system-ui, -apple-system, 'Segoe UI',
  roboto, ubuntu, cantarell, 'Noto Sans', sans-serif, 'Apple Color Emoji',
  'Segoe UI Emoji', 'Segoe UI Symbol', 'Noto Color Emoji' !default;
$sl-font-family--display: 'Source Serif Pro', 'Apple Garamond', 'Baskerville',
  'Times New Roman', 'Droid Serif', times, serif, 'Apple Color Emoji',
  'Segoe UI Emoji', 'Segoe UI Symbol', 'Noto Color Emoji' !default;
$sl-font-family--code: 'Source Code Pro', 'SF Mono', monaco, inconsolata,
  'Fira Mono', 'Droid Sans Mono', monospace, monospace !default;
$sl-font-families: (
  text: $sl-font-family--text,
  display: $sl-font-family--display,
  code: $sl-font-family--code,
);

@each $name, $value in $sl-font-families {
  .sl-font-family--#{$name} {
    font-family: $value;
  }
}

body,
h5,
h6 {
  font-size: var(--sl-font-size--medium);
}

body {
  line-height: 1.5;
  font-family: $sl-font-family--text;
  text-rendering: optimizelegibility;
}

* {
  min-width: 0;
}

a {
  text-decoration: none;
}

strong,
b,
h5,
h6,
dt,
tbody th,
label {
  font-weight: $sl-font-weight--bold;
}

h1,
h2,
caption,
h3,
h4,
h5,
h6,
p,
ul,
ol,
dl,
figure,
details {
  margin: var(--gutter) 0;
  padding: 0;
}

h2,
h3,
h4,
h5,
h6 {
  margin-top: var(--gutter-double-sesqui);

  aside &,
  nav & {
    margin-top: var(--gutter);
  }
}

ul,
ol,
dd {
  margin-left: 1.75rem;
}

h1,
h2,
caption,
h3,
h4,
h5,
h6 {
  font-weight: $sl-font-weight--regular;
  line-height: 1.25;
}

h1,
h2,
caption {
  letter-spacing: -0.03125em;
}

h1,
h2 {
  font-weight: $sl-font-weight--light;
}

h1 {
  margin-top: 0;
  font-size: var(--h1-size, var(--sl-font-size--xx-large));
  line-height: 1;
  text-align: center;

  @include breakpoints.sl-breakpoint--medium {
    --h1-size: var(--sl-font-size--xxx-large);
  }

  @include breakpoints.sl-breakpoint--large {
    --h1-size: var(--sl-font-size--xxxx-large);
  }
}

h2,
caption,
legend,
h3,
thead th {
  font-family: $sl-font-family--display;
}

h2,
caption {
  font-size: var(--h2-size, var(--sl-font-size--x-large));

  @include breakpoints.sl-breakpoint--medium {
    --h2-size: var(--sl-font-size--xx-large);
  }

  @include breakpoints.sl-breakpoint--large {
    --h2-size: var(--sl-font-size--xxx-large);
  }
}

h3,
h4 {
  font-size: var(--sl-font-size--large);
}

nav,
footer {
  font-size: var(--sl-font-size--small);
}

.caps {
  font-size: 0.875em;
  text-transform: uppercase;
  letter-spacing: 0.0625em;
  line-height: 0;
}

code,
pre {
  font-family: $sl-font-family--code;
}

code {
  // Scale the code font size down, because the font itself is much larger.
  font-size: 0.88889em;
  line-height: 1;

  nav & {
    white-space: nowrap;
  }

  p & {
    @include breakpoints.sl-breakpoint--x-large {
      white-space: nowrap;
    }
  }
}

pre {
  font-size: var(--sl-font-size--x-small);
  padding: var(--gutter-minus) var(--gutter);
  overflow: auto;
  white-space: pre-wrap;

  code {
    font-size: inherit;
    line-height: inherit;
  }
}

img {
  display: block;
  margin: {
    right: auto;
    left: auto;
  }

  max-width: 100%;
  height: auto;
}

hr {
  margin: {
    top: var(--gutter-triple);
    bottom: var(--gutter-triple);
  }
}

dd {
  margin: 0;
}