:root {
  /* Color styles */

  /* Greys */
  --grey50: #f9fafb;
  --grey300: #cbd5e1;
  --grey500: #6b7280;
  --grey700: #374151;
  --grey950: #030712;

  /* Primary */
  --primary50: #eff6ff;
  --primary300: #93c5fd;
  --primary500: #3b82f6;
  --primary700: #1d4ed8;
  --primary950: #172554;

  /* Error */
  --error50: #fef2f2;
  --error300: #fca5a5;
  --error500: #ef4444;
  --error700: #b91c1c;
  --error950: #450a0a;

  /* Warning */
  --warning50: #fff7ed;
  --warning300: #fdba74;
  --warning500: #f97316;
  --warning700: #c2410c;
  --warning950: #431407;

  /* Success */
  --success50: #f0fdf4;
  --success300: #86efac;
  --success500: #22c55e;
  --success700: #15803d;
  --success950: #052e16;

  /* Shades */
  --shades0: #ffffff;
  --shades1000: #000000;

  /* Font Sizes */
  --fs-sm: 0.75rem;
  --fs-base: 1rem;
  --fs-lg: 1.125rem;
  --fs-xl: 1.25rem;
  --fs-2xl: 1.5rem;
  --fs-3xl: 3rem;
}

* {
  font-family: sans-serif, system-ui;
  font-style: normal;
  color: var(--grey700);
}

h1,
h2,
h3 {
  line-height: 120%;
  margin-top: 1.5rem;
  margin-bottom: 0.5rem;
  font-family: "Rubik", sans-serif, system-ui;
  font-optical-sizing: auto;
  font-weight: 700;
}

h1 {
  color: var(--primary700);
  font-size: var(--fs-3xl);
}

h2 {
  color: var(--grey950);
  font-size: var(--fs-2xl);
}

h3 {
  color: var(--grey950);
  font-size: var(--fs-xl);
}

p {
  line-height: 150%;
  margin: 0;
  margin-bottom: 1.25rem;
  max-width: 60ch;
}

code {
  background-color: var(--grey50);
  padding: 0.125rem 0.25rem;
  border-radius: 0.25rem;
  font-family: monospace, system-ui;
}

a {
  text-decoration: none;
  color: var(--primary500);
  transition: all 0.2s ease-in-out;
}

a:hover {
  color: var(--primary700);
  transition: all 0.2s ease-in-out;
  cursor: pointer;
}

a[class="external"]:hover::after {
  content: " ↗";
  font-size: var(--fs-base);
}

a[class="back"]:hover::before {
  content: "← ";
  font-size: var(--fs-base);
}

a[class="next"]:hover::after {
  content: " →";
  font-size: var(--fs-base);
}

blockquote {
  padding: 1rem;

  p {
    font-style: italic;
    margin: 0;
    font-size: var(--fs-lg);
    line-height: 150%;
  }
}
ul {
  list-style: none;
  padding: 0 0 0 1rem;

  li::before {
    content: ">";
    color: var(--grey500);
  }
}

/* COMPONENTS */

body {
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  justify-content: baseline;
  align-items: center;
  background-color: var(--grey50);
  min-height: 100dvh;
}

.header {
  display: flex;
  background-color: var(--grey50);
  margin: 0;
  padding: 1rem 4rem;
  width: 80vw;
  align-items: center;
  justify-content: space-between;
  flex-wrap: nowrap;
  gap: 16rem;
  position: sticky;
  top: 0;

  .logo {
    width: 2rem;
  }

  .links {
    display: flex;
    flex-direction: row;
    gap: 2rem;
    align-items: center;

    .back-links {
      display: flex;
      flex-direction: row;
      gap: 2rem;
    }

    .external-links {
      display: flex;
      flex-direction: column;
      gap: 0;
    }
  }
}

main {
  max-width: 60ch;
  margin: 0 auto;
  margin-bottom: 4rem;
}

.date {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;

  gap: 0.25rem;
  font-size: var(--fs-sm);

  span {
    color: var(--grey500);
  }
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;

  padding: 0;

  li {
    background-color: var(--shades0);
    padding: 0.25rem 0.5rem;
    border-radius: 0.25rem;
    list-style: none;
    cursor: pointer;
  }

  li:hover {
    background-color: var(--primary300);
    color: var(--primary950);
  }

  li::before {
    content: "";
  }
}

.links {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.author {
  font-size: var(--fs-lg);
  font-weight: 400;
  color: var(--primary700);
}