*, *::before, *::after { box-sizing: border-box; }

*:target {
  animation: target-fade 3s 1;
}

@keyframes target-fade {
  0% { background: var(--base0C); }
  100% { background: unset; }
}


::selection {
  background: var(--base05);
  color: var(--base00);
}

body {
  margin: 0 auto;
  max-width: var(--content-width);
  padding: 1rem;
}

nav {
  margin: 1rem auto;
}

h1 { margin: 1rem auto; }

article {
  h1 { margin: 1rem auto; }
  h2 { margin-top: 3rem; }
  h3 { margin-top: 2rem; }
  h1, h2, h3 {
    margin-bottom: 1rem;
  }
}


/* Text formatting */
h1, h2, h3,
h4, h5, h6 {
  font-family: var(--header-family);
  line-height: 1.25;
}

a {
  color: var(--base0C);
  text-decoration: none;

  &:hover {
    color: var(--base0B);
    text-decoration: underline;
  }

  &::selection {
    text-decoration: underline;
  }
}

dd, li, p, td {
  line-height: 1.45;
}

p {
  margin-top: 1rem;
  margin-bottom: 1rem;
}

dd {
  margin-top: 0.5rem;
  margin-bottom: 1.5rem;
}

kbd {
  border: var(--border-style);
  font-size: 0.8em;
  font-weight: bold;
  padding: 0 0.25em;
}

tr:nth-child(even) {
  background: var(--base01);
}

code, pre {
  font-family: var(--mono-family);
}

code {
  background: var(--base01);
  font-family: var(--mono-family);
  font-size: 0.9em;
}

pre {
  background: var(--base01);
  color: var(--base06);
  border: var(--border-style);
  font-family: var(--mono-family);
  font-size: 1rem;
  line-height: 1.5;
  margin-top: 1rem;
  margin-bottom: 1rem;
  padding: 0.5rem;
  overflow: auto;
}

code[class*=language-]::selection,
code[class*=language-] ::selection,
pre[class*=language-]::selection,
pre[class*=language-] ::selection {
  background: var(--base02);
  font-size: var(--mono-font-size);
  color: unset;
}

mark {
  background: var(--base05);
  color: var(--base00);

  &::selection {
    color: var(--base06);
  }
}

hr {
  border-color: var(--base0C);
  margin: 1em 0;
}


/* Multimedia blocks */
img, video, audio, iframe {
  display: block;
  height: auto;
  max-width: 100%;
  margin: auto;
}

table {
  border: var(--border-style);
  border-collapse: collapse;
  margin: auto;
}

thead, tbody {
  margin: 0 auto;
}

thead {
  background: var(--base07);
  color: var(--base00);
}

th, td {
  border: var(--border-style);
  padding: 1rem;
}

ol, ul {
  line-height: 1.5;
}

figure {
  margin: 2rem auto;
  & > * {
    margin: 1rem auto;
  }
}

figcaption {
  text-align: center;
  font-size: 1rem;
}

blockquote {
  margin: 2rem 1rem;
}

blockquote footer {
  display: block;
  width: 100%;
}

/* Form controls */
button {
  background: unset;
  border: var(--base06) solid 1px;
  color: var(--base06);
  cursor: pointer;
  font-size: 1rem;
  padding: 0.5rem;
}


/* Semantic blocks */
aside {
  --vertical-rhythm-reduction: 0.2;
  color: var(--base03);
  border: 1px solid var(--base03);
  border-left: 3px solid var(--base03);
  font-size: calc(1rem * (1 - var(--vertical-rhythm-reduction)));
  font-family: var(--header-family);
  line-height: calc(1rem * (1 + var(--vertical-rhythm-reduction)));
  margin: 1rem 0;
  padding: 0.5rem;
  width: 100%;
}

footer {
  align-items: center;
  display: flex;
  flex-flow: column wrap;
  justify-content: space-evenly;
  text-align: center;
}


/* Mobile styles */
@media all and (max-width: $tablet-breakpoint) {
  html:root {
    --font-size: 17px;
  }
}

@media print {
  html {
    color: var(--base00);
    background: var(--base07);
    overflow: auto;
  }
}