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

:root {
  color-scheme: light dark;

  /*** gray ***/
  --uchu-light-gray-raw: 95.57% 0.003 286.35;
  --uchu-light-gray: oklch(var(--uchu-light-gray-raw));

  --uchu-gray-raw: 84.68% 0.002 197.12;
  --uchu-gray: oklch(var(--uchu-gray-raw));

  --uchu-dark-gray-raw: 63.12% 0.004 219.55;
  --uchu-dark-gray: oklch(var(--uchu-dark-gray-raw));

  /*** red ***/
  --uchu-light-red-raw: 88.98% 0.052 3.28;
  --uchu-light-red: oklch(var(--uchu-light-red-raw));

  --uchu-red-raw: 62.73% 0.209 12.37;
  --uchu-red: oklch(var(--uchu-red-raw));

  --uchu-dark-red-raw: 45.8% 0.177 17.7;
  --uchu-dark-red: oklch(var(--uchu-dark-red-raw));

  /*** pink ***/
  --uchu-light-pink-raw: 95.8% 0.023 354.27;
  --uchu-light-pink: oklch(var(--uchu-light-pink-raw));

  --uchu-pink-raw: 85.43% 0.09 354.1;
  --uchu-pink: oklch(var(--uchu-pink-raw));

  --uchu-dark-pink-raw: 64.11% 0.084 353.91;
  --uchu-dark-pink: oklch(var(--uchu-dark-pink-raw));

  /*** purple ***/
  --uchu-light-purple-raw: 89.1% 0.046 305.24;
  --uchu-light-purple: oklch(var(--uchu-light-purple-raw));

  --uchu-purple-raw: 58.47% 0.181 302.06;
  --uchu-purple: oklch(var(--uchu-purple-raw));

  --uchu-dark-purple-raw: 39.46% 0.164 298.29;
  --uchu-dark-purple: oklch(var(--uchu-dark-purple-raw));

  /*** blue ***/
  --uchu-light-blue-raw: 89.66% 0.046 260.67;
  --uchu-light-blue: oklch(var(--uchu-light-blue-raw));

  --uchu-blue-raw: 62.39% 0.181 258.33;
  --uchu-blue: oklch(var(--uchu-blue-raw));

  --uchu-dark-blue-raw: 43.48% 0.17 260.2;
  --uchu-dark-blue: oklch(var(--uchu-dark-blue-raw));

  /*** green ***/
  --uchu-light-green-raw: 93.96% 0.05 148.74;
  --uchu-light-green: oklch(var(--uchu-light-green-raw));

  --uchu-green-raw: 79.33% 0.179 145.62;
  --uchu-green: oklch(var(--uchu-green-raw));

  --uchu-dark-green-raw: 58.83% 0.158 145.05;
  --uchu-dark-green: oklch(var(--uchu-dark-green-raw));

  /*** yellow ***/
  --uchu-light-yellow-raw: 97.05% 0.039 91.2;
  --uchu-light-yellow: oklch(var(--uchu-light-yellow-raw));

  --uchu-yellow-raw: 90.92% 0.125 92.56;
  --uchu-yellow: oklch(var(--uchu-yellow-raw));

  --uchu-dark-yellow-raw: 69.14% 0.109 91.04;
  --uchu-dark-yellow: oklch(var(--uchu-dark-yellow-raw));

  /*** orange ***/
  --uchu-light-orange-raw: 93.83% 0.037 56.93;
  --uchu-light-orange: oklch(var(--uchu-light-orange-raw));

  --uchu-orange-raw: 78.75% 0.14163582809066333 54.32911089172009;
  --uchu-orange: oklch(var(--uchu-orange-raw));

  --uchu-dark-orange-raw: 58.28% 0.128 52.2;
  --uchu-dark-orange: oklch(var(--uchu-dark-orange-raw));

  /*** general ***/
  --uchu-yang-raw: 99.4% 0 0;
  --uchu-yang: oklch(var(--uchu-yang-raw));

  --uchu-light-yin-raw: 91.87% 0.003 264.54;
  --uchu-light-yin: oklch(var(--uchu-light-yin-raw));

  --uchu-yin-raw: 14.38% 0.007 256.88;
  --uchu-yin: oklch(var(--uchu-yin-raw));

  --serif: Athelas, Garamond, "EB Garamond", serif;
  --sans-serif:
    "Helvetica Neue", Helvetica, Arial, system-ui, "Segoe UI", Roboto,
    sans-serif, "Apple Color Emoji", "Segoe UI Emoji";
  --mono:
    ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", Menlo, monospace;
}

html {
  font-family: var(--sans-serif);
  line-height: 1.15;
  -webkit-tap-highlight-color: transparent;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  tab-size: 4;
  word-break: break-word;
}

body {
  font-family: var(--sans-serif);
  margin: auto;
  padding: 1rem;
  max-width: 80ch;
  color: light-dark(var(--uchu-yin), var(--uchu-yang));
  background-color: light-dark(var(--uchu-yang), var(--uchu-yin));
}

main {
  margin: 1rem auto;
  max-width: 70ch;
}

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

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

svg {
  display: inline;
}

.title {
  color: light-dark(var(--uchu-yin), var(--uchu-yang));
  font-weight: bold;
  font-variant: normal;
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 1.5rem;

  svg {
    height: 1.5rem;
    margin: 0.5rem;
    vertical-align: middle;
    fill: light-dark(var(--uchu-yin), var(--uchu-yang));
    @media (prefers-color-scheme: dark) {
      path {
        fill: white;
      }
    }
  }
}

header {
  border-bottom: 1px solid var(--uchu-gray);
  font-size: 1.25rem;
  font-weight: bold;

  nav {
    ul {
      display: flex;
      justify-content: space-evenly;
      list-style: none;
      padding: 0 0.5rem;

      a {
        color: light-dark(var(--uchu-yin), var(--uchu-yang));

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

        &.active {
          text-decoration: underline;
          text-decoration-color: var(--uchu-blue);
        }
      }
    }
  }
}

article {
  line-height: 1.5;
  text-wrap: pretty;
  text-align: justify;
  text-justify: inter-word;
  font-variant-numeric: oldstyle-nums;

  figure {
    max-width: 100%;
    height: auto;
    margin: 0;

    figcaption {
      margin: 0.25rem 0 2rem;
      font-family: var(--sans-serif);
      text-align: center;
    }
  }

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

  > p:nth-of-type(2)::first-letter {
    font-size: 3.3rem;
    float: left;
    line-height: 3rem;
    padding-right: 0.2rem;
  }

  p,
  ul {
    font-family: var(--serif);
  }

  .dates {
    display: flex;
    justify-content: space-between;

    p {
      margin: 0;
      padding: 0;
    }
  }

  h1 {
    text-align: center;
    margin: 0;
    font-size: 1.75rem;
  }

  .lead {
    font-family: var(--sans-serif);
    text-align: center;
    font-size: 1.5rem;
    margin: 0;
  }

  em {
    color: var(--uchu-red);
  }

  b,
  strong {
    color: var(--uchu-orange);
  }

  abbr {
    text-decoration-color: var(--uchu-blue);
  }

  table {
    border-collapse: collapse;
    width: 90%;
    margin: 5%;

    th {
      text-align: left;
      border-bottom: 1px solid;
    }
  }
}

footer {
  border-top: 1px solid var(--uchu-gray);

  ul {
    display: flex;
    justify-content: space-around;
    list-style: none;
    font-size: 0.75rem;
    padding: 1rem;

    a {
      text-decoration: none;
      color: light-dark(var(--uchu-yin), var(--uchu-yang));

      &:hover {
        text-decoration: none;
      }
    }

    svg {
      height: 0.75rem;
      width: 0.75rem;
      vertical-align: middle;
      margin: 0 1px;
      @media (prefers-color-scheme: dark) {
        path {
          fill: white;
        }
      }
    }
  }
}

.list {
  ul {
    list-style: none;
    padding: 0;
  }

  li {
    padding: 1rem;
    border-left: solid transparent 3px;

    a {
      color: light-dark(var(--uchu-yin), var(--uchu-yang));
      text-decoration: none;
    }

    &:hover {
      border-left: solid var(--uchu-blue) 3px;
      text-decoration: none;
    }

    h2 {
      margin: 0;
    }

    .lead {
      margin: 0;
      font-size: 1rem;
      text-align: left;
      text-decoration: none;
    }
  }
}

code {
  font-family: var(--mono);
  border-radius: 0.3rem;
  font-size: 0.8rem;
  margin: 0;
  padding: 0 1rem;
}

.highlight {
  font-family: var(--mono);
  background: light-dark(var(--uchu-gray), var(--uchu-dark-gray));
  border-radius: 0.3rem;
  padding: 0.5rem 0rem;
  margin: 1rem 0;
  overflow: auto;

  pre {
    margin: 0;
    padding: 0;
  }
}