:root {
  --paper: #fbfbf9;
  --raise: #ffffff;
  --ink: #14161a;
  --ink-2: #5c6169;
  --ink-3: #8b9099;
  --rule: #e4e4df;
  --accent: #2743c4;
  --accent-soft: #eef1fd;
  --measure: 38rem;
  --gutter: 5.5rem;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #101215;
    --raise: #171a1f;
    --ink: #e9e9e5;
    --ink-2: #9aa0a8;
    --ink-3: #6d737b;
    --rule: #262a30;
    --accent: #8ba0f7;
    --accent-soft: #1a2033;
  }
}

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

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: Archivo, ui-sans-serif, system-ui, -apple-system, sans-serif;
  font-size: 1.0625rem;
  line-height: 1.7;
  font-synthesis-weight: none;
  -webkit-font-smoothing: antialiased;
}

.wrap {
  max-width: calc(var(--measure) + var(--gutter));
  margin: 0 auto;
  padding: 0 1.5rem 6rem;
}

a {
  color: var(--accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}

a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 2px;
}

.mono {
  font-family: 'IBM Plex Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
  font-variant-numeric: tabular-nums;
}

/* masthead */

.masthead {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
  padding: 2.75rem 0 1.25rem;
  border-bottom: 1px solid var(--rule);
  margin-bottom: 3.5rem;
}

.wordmark {
  font-size: 1.0625rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--ink);
  text-decoration: none;
}

.wordmark span {
  color: var(--ink-3);
  font-weight: 400;
}

.masthead nav {
  display: flex;
  gap: 1.5rem;
  font-size: 0.875rem;
}

.masthead nav a {
  color: var(--ink-2);
  text-decoration: none;
}

.masthead nav a:hover {
  color: var(--accent);
}

/* index */

.year-group {
  display: grid;
  grid-template-columns: var(--gutter) minmax(0, 1fr);
  border-top: 1px solid var(--rule);
  padding-top: 1.75rem;
  margin-bottom: 2.5rem;
}

.year-group:first-of-type {
  border-top: 0;
  padding-top: 0;
}

.year {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--ink-3);
  letter-spacing: 0.06em;
  padding-top: 0.35rem;
}

.entry {
  margin-bottom: 2rem;
}

.entry:last-child {
  margin-bottom: 0;
}

.entry h2 {
  font-size: 1.1875rem;
  font-weight: 500;
  line-height: 1.35;
  letter-spacing: -0.015em;
  margin: 0 0 0.3rem;
}

.entry h2 a {
  color: var(--ink);
  text-decoration: none;
}

.entry h2 a:hover {
  color: var(--accent);
}

.entry p {
  margin: 0;
  color: var(--ink-2);
  font-size: 0.9688rem;
  line-height: 1.6;
}

.entry .stamp {
  display: block;
  font-size: 0.75rem;
  color: var(--ink-3);
  margin-bottom: 0.5rem;
  letter-spacing: 0.02em;
}

/* article */

article {
  max-width: var(--measure);
}

article h1 {
  font-size: 1.875rem;
  font-weight: 500;
  line-height: 1.2;
  letter-spacing: -0.025em;
  margin: 0 0 0.75rem;
  text-wrap: balance;
}

article .stamp {
  display: block;
  font-size: 0.8125rem;
  color: var(--ink-3);
  letter-spacing: 0.03em;
  padding-bottom: 1.75rem;
  margin-bottom: 2.25rem;
  border-bottom: 1px solid var(--rule);
}

article h2 {
  font-size: 1.25rem;
  font-weight: 500;
  letter-spacing: -0.015em;
  margin: 2.5rem 0 0.75rem;
}

article h3 {
  font-size: 1.0625rem;
  font-weight: 500;
  margin: 2rem 0 0.5rem;
}

article p {
  margin: 0 0 1.35rem;
}

article ul,
article ol {
  margin: 0 0 1.35rem;
  padding-left: 1.25rem;
}

article li {
  margin-bottom: 0.4rem;
}

article img {
  display: block;
  max-width: 100%;
  height: auto;
  margin: 2rem 0;
  border-radius: 3px;
  border: 1px solid var(--rule);
}

article pre {
  background: var(--raise);
  border: 1px solid var(--rule);
  border-radius: 3px;
  padding: 1rem 1.15rem;
  overflow-x: auto;
  font-size: 0.875rem;
  line-height: 1.6;
}

article code {
  font-family: 'IBM Plex Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.9em;
}

article :not(pre) > code {
  background: var(--accent-soft);
  color: var(--accent);
  padding: 0.1em 0.35em;
  border-radius: 3px;
}

article blockquote {
  margin: 1.75rem 0;
  padding-left: 1.15rem;
  border-left: 2px solid var(--rule);
  border-radius: 0;
  color: var(--ink-2);
}

article table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9375rem;
  margin: 0 0 1.35rem;
}

article th,
article td {
  text-align: left;
  padding: 0.5rem 0.75rem 0.5rem 0;
  border-bottom: 1px solid var(--rule);
}

article th {
  font-weight: 500;
  color: var(--ink-2);
  font-size: 0.8125rem;
  letter-spacing: 0.03em;
}

article hr {
  border: 0;
  border-top: 1px solid var(--rule);
  margin: 2.5rem 0;
}

/* back link + footer */

.back {
  display: inline-block;
  margin-top: 3.5rem;
  font-size: 0.875rem;
  color: var(--ink-2);
  text-decoration: none;
}

.back:hover {
  color: var(--accent);
}

.site-footer {
  max-width: calc(var(--measure) + var(--gutter));
  margin: 5rem auto 0;
  padding: 1.25rem 1.5rem 3rem;
  border-top: 1px solid var(--rule);
  color: var(--ink-3);
  font-size: 0.8125rem;
}

/* narrow */

@media (max-width: 46rem) {
  :root {
    --gutter: 0rem;
  }

  body {
    font-size: 1rem;
  }

  .year-group {
    grid-template-columns: minmax(0, 1fr);
    gap: 0.75rem;
  }

  .year {
    padding-top: 0;
  }

  article h1 {
    font-size: 1.5rem;
  }

  .masthead {
    padding-top: 2rem;
    margin-bottom: 2.5rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}