@font-face {
  font-family: "Source Serif 4";
  src: url("/fonts/source-serif-4-latin-400-normal.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Source Serif 4";
  src: url("/fonts/source-serif-4-latin-600-normal.woff2") format("woff2");
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "IBM Plex Mono";
  src: url("/fonts/ibm-plex-mono-latin-400-normal.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "IBM Plex Mono";
  src: url("/fonts/ibm-plex-mono-latin-500-normal.woff2") format("woff2");
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}

:root {
  --bg: #FFFFFF;
  --ink: #111111;
  --muted: #5C5C5C;
  --faint: #737373;
  --rule: #E8E8E8;
  --rule-soft: #F2F2F2;
  --code-bg: #F4F4F4;
  --code-edge: #111111;
  --accent: #111111;
  --accent-hover: #000000;
  --serif: "Source Serif 4", "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  --mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111111;
    --ink: #F5F5F5;
    --muted: #A3A3A3;
    --faint: #808080;
    --rule: #2A2A2A;
    --rule-soft: #1C1C1C;
    --code-bg: #1A1A1A;
    --code-edge: #F5F5F5;
    --accent: #F5F5F5;
    --accent-hover: #FFFFFF;
  }
}

* { box-sizing: border-box; }

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

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--serif);
  font-size: 17px;
  line-height: 1.65;
  margin: 0;
  padding: 0 1.4rem 5rem;
  -webkit-font-smoothing: antialiased;
}

.page {
  max-width: 48rem;
  margin: 0 auto;
}

a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid var(--rule);
}

a:hover {
  color: var(--accent-hover);
  border-bottom-color: var(--ink);
}

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

.skip-link {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.skip-link:focus-visible {
  top: 0.75rem;
  left: 0.75rem;
  z-index: 10;
  width: auto;
  height: auto;
  padding: 0.45rem 0.7rem;
  margin: 0;
  overflow: visible;
  clip: auto;
  white-space: normal;
  background: var(--ink);
  color: var(--bg);
  border-bottom: 0;
  font-family: var(--mono);
  font-size: 0.78rem;
}

/* ---------- header ---------- */

header.site {
  padding: 3.5rem 0 2.2rem;
  border-bottom: 1px solid var(--rule);
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
}

header.site h1 {
  font-size: inherit;
  line-height: inherit;
  margin: 0;
}

.wordmark {
  font-family: var(--mono);
  font-size: 1.02rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--ink);
  border-bottom: 0;
}

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

.bio {
  color: var(--muted);
  font-size: 0.97rem;
  margin: 0;
}

nav.site {
  display: flex;
  flex-wrap: wrap;
  gap: 1.3rem;
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.02em;
}

nav.site a { border-bottom: 0; color: var(--muted); }
nav.site a:hover { color: var(--accent); }

nav.site a.current {
  color: var(--ink);
  border-bottom: 1px solid var(--accent);
  padding-bottom: 1px;
}

/* ---------- sections ---------- */

.block {
  padding: 2.6rem 0;
  border-bottom: 1px solid var(--rule);
}

.section {
  font-family: var(--mono);
  font-size: 0.74rem;
  font-weight: 500;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--faint);
  margin: 0 0 1.5rem;
}

/* ---------- prose ---------- */

.prose {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.prose p { margin: 0; }

.prose h1 {
  font-size: 1.7rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.18;
  margin: 0;
  text-wrap: balance;
}

.prose h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin: 1rem 0 -0.4rem;
}

/* ---------- article ---------- */

article.post-body {
  display: flex;
  flex-direction: column;
  gap: 1.15rem;
  padding: 2.6rem 0 0;
}

article.post-body p { margin: 0; }

article.post-body h1 {
  font-size: 1.7rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.18;
  margin: 0;
  text-wrap: balance;
}

article.post-body h2 {
  font-size: 1.12rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin: 1.5rem 0 -0.35rem;
}

article.post-body .meta {
  font-family: var(--mono);
  font-size: 0.73rem;
  color: var(--faint);
  letter-spacing: 0.02em;
  margin: -0.5rem 0 0;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  row-gap: 0.2rem;
}

.meta > * { white-space: nowrap; }

.meta > *:not(:last-child)::after {
  content: "·";
  margin: 0 0.45rem;
}

.ident { white-space: nowrap; }

article.post-body .standfirst {
  font-size: 1.03rem;
  color: var(--muted);
}

article.post-body ul,
article.post-body ol {
  margin: 0;
  padding-left: 1.15rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

article.post-body li::marker { color: var(--faint); }

code {
  font-family: var(--mono);
  font-size: 0.86em;
  background: var(--code-bg);
  padding: 0.1em 0.32em;
  border-radius: 2px;
}

pre {
  margin: 0;
  padding: 0.9rem 1rem;
  background: var(--code-bg);
  border-left: 2px solid var(--code-edge);
  overflow-x: auto;
  font-family: var(--mono);
  font-size: 0.8rem;
  line-height: 1.6;
}

pre code {
  background: none;
  padding: 0;
  font-size: inherit;
}

pre .del { color: #9B2226; }
pre .add { color: var(--ink); font-weight: 500; }

@media (prefers-color-scheme: dark) {
  pre .del { color: #E08A82; }
}

.table-wrap {
  overflow-x: auto;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}

article.post-body table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
}

article.post-body th,
article.post-body td {
  padding: 0.55rem 0.65rem;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--rule-soft);
}

article.post-body th {
  font-family: var(--mono);
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--faint);
}

article.post-body tbody tr:last-child td { border-bottom: 0; }

.timeline {
  display: grid;
  grid-template-columns: 7rem 1fr;
  gap: 0.45rem 1.1rem;
  font-size: 0.94rem;
}

.timeline dt {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--faint);
  padding-top: 0.16rem;
}

.timeline dd { margin: 0; }

@media (max-width: 33rem) {
  .timeline { grid-template-columns: 1fr; gap: 0.15rem; }
  .timeline dd { margin-bottom: 0.5rem; }
  pre {
    white-space: pre-wrap;
    overflow-wrap: break-word;
    font-size: 0.74rem;
  }
}

/* ---------- writing list ---------- */

.posts { display: flex; flex-direction: column; gap: 1.7rem; }

.post { display: flex; flex-direction: column; gap: 0.3rem; }

.post-date {
  font-family: var(--mono);
  font-size: 0.73rem;
  color: var(--faint);
  letter-spacing: 0.02em;
}

.post-title {
  font-size: 1.12rem;
  font-weight: 600;
  letter-spacing: -0.011em;
  line-height: 1.3;
  margin: 0;
  text-wrap: balance;
}

.post-title a { color: var(--ink); border-bottom: 0; }
.post-title a:hover { color: var(--accent); }

.post-blurb {
  color: var(--muted);
  font-size: 0.94rem;
  margin: 0;
}

/* ---------- disclosure ledger ---------- */

.ledger { display: flex; flex-direction: column; }

.entry {
  display: grid;
  grid-template-columns: 8.5rem 1fr;
  gap: 0.2rem 1.2rem;
  padding: 0.95rem 0;
  border-top: 1px solid var(--rule-soft);
  align-items: baseline;
}

.entry:first-child { border-top: 0; padding-top: 0; }

.vendor {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--ink);
  letter-spacing: -0.01em;
}

.detail { display: flex; flex-direction: column; gap: 0.25rem; }

.detail-what { font-size: 0.94rem; margin: 0; }

.detail-ref {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--faint);
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.9rem;
}

.detail-ref a,
.detail-ref span { white-space: nowrap; }

.detail-ref a { color: var(--faint); border-bottom-color: var(--rule); }

.detail-ref a:hover {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

@media (max-width: 33rem) {
  .entry { grid-template-columns: 1fr; gap: 0.3rem; }
}

/* ---------- footer ---------- */

footer.site {
  padding: 2.4rem 0 0;
  font-family: var(--mono);
  font-size: 0.76rem;
  color: var(--faint);
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.4rem;
}

footer.site a {
  color: var(--faint);
  border-bottom: 0;
  display: inline-flex;
  align-items: center;
  gap: 0.42rem;
  line-height: 1.6;
}

.footer-icon {
  width: 1rem;
  height: 1rem;
  flex: 0 0 auto;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.7;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.footer-icon .dot {
  fill: currentColor;
  stroke: none;
}

footer.site a:hover { color: var(--accent); }