:root,
:root:not([data-theme="light"]),
:root[data-theme="dark"] {
  --paper: #eef0ec;
  --ink: #20242a;
  --tape: #4059c7;
  --amber: #a55f24;
  --muted: #66707f;
  --rule: #d5d9d2;
  --panel: #f8f9f6;
  --note-bg: #eef1ff;
  --note-ink: #252d52;
  --note-rule: #6678d8;
  color-scheme: light;
}

* { box-sizing: border-box; }

body {
  background: var(--paper);
  color: var(--ink);
  font-family: "IBM Plex Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  font-size: 18px;
  line-height: 1.5;
}

.site-nav {
  border-bottom: 0;
  gap: 1.05rem;
  max-width: 640px;
  padding: 1.8rem 0 .85rem;
}

.site-nav a {
  color: var(--muted);
  font-family: "IBM Plex Sans", system-ui, sans-serif;
  font-size: 1rem;
  letter-spacing: 0;
  text-transform: none;
}

.site-nav a[aria-current="page"] {
  color: var(--ink);
  text-decoration: underline;
  text-decoration-color: var(--tape);
  text-decoration-thickness: 2px;
  text-underline-offset: .32em;
}

a { color: var(--tape); }
h1, h2, h3 { font-family: "IBM Plex Sans", system-ui, sans-serif; }

/* Article pages: one shared column. Prose, figures, side-by-side Notion columns and video all use the same
   width and edges, so nothing shifts when the layout switches between them. Change --measure to widen/narrow. */
.post-page { --measure: 680px; }
.post-page .wrap { max-width: var(--measure); }
.post-page .wrap > *,
.post-page .site-nav,
.post-page header {
  max-width: var(--measure);
  margin-left: auto;
  margin-right: auto;
}
.post-page .wrap > .wide,
.post-page .wrap > figure,
.post-page .wrap > .gridwrap,
.post-page .wrap > .notion-columns,
.post-page .wrap > .video-embed { width: 100%; }

.post-page header { padding: 3.8rem 0 2.1rem; }
.post-page .eyebrow {
  font-family: "IBM Plex Sans", system-ui, sans-serif;
  font-size: .78rem;
  font-weight: 500;
  letter-spacing: .09em;
}
.post-page h1 {
  font-size: clamp(2.55rem, 6vw, 3.65rem);
  font-weight: 600;
  letter-spacing: -.035em;
  line-height: 1.05;
}
.post-page h2 {
  font-size: clamp(1.75rem, 3.5vw, 2.2rem);
  font-weight: 600;
  letter-spacing: -.025em;
  line-height: 1.15;
  margin-top: 3.3rem;
}
/* Standard break under section headings: the same gap whatever follows (text, figure, columns, quote). */
.post-page { --heading-gap: 1.25rem; }
.post-page .wrap > h2 { margin-bottom: var(--heading-gap); }
.post-page .wrap > h3 { margin-top: 2.2rem; margin-bottom: calc(var(--heading-gap) * .7); }
.post-page .wrap > h2 + *,
.post-page .wrap > h3 + * { margin-top: 0; }
.post-page p { margin-bottom: 1.15em; }
.post-page .byline {
  font-family: "IBM Plex Sans", system-ui, sans-serif;
  font-size: .9rem;
}
.post-page .notion-columns {
  align-items: start;
  column-gap: 32px;
}
.post-page figure img { border-radius: 2px; }
.post-page figcaption { font-family: "IBM Plex Sans", system-ui, sans-serif; font-size: .8rem; }
.post-page blockquote:not(.note) { font-style: italic; }
.post-page .note { box-shadow: none; }

/* Blog index: compact archive rows and an introductory panel. */
.home-page .wrap { max-width: 760px; }
.home-page .site-nav { margin: 0; }
.home-page .tag { display: block; margin-top: 3.2rem; }
.home-page h1 {
  font-size: clamp(2.7rem, 7vw, 4rem);
  font-weight: 600;
  letter-spacing: -.04em;
  margin: .35rem 0 1rem;
}
.home-page .intro {
  background: var(--panel);
  border: 1px solid var(--rule);
  border-radius: 4px;
  color: var(--ink);
  margin: 0 0 3.5rem;
  padding: 1.1rem 1.25rem;
}
.home-page .year {
  font-size: 2rem;
  letter-spacing: -.03em;
  margin: 0 0 .7rem;
}
.home-page .post {
  border: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  padding: .55rem 0 .9rem;
}
.home-page .post h2 {
  font-family: "IBM Plex Sans", system-ui, sans-serif;
  font-size: 1.2rem;
  font-weight: 400;
  grid-column: 1;
  grid-row: 1;
  line-height: 1.35;
  margin: 0;
}
.home-page .post h2 a { text-decoration: underline; text-decoration-color: color-mix(in srgb, var(--ink) 30%, transparent); text-underline-offset: .16em; }
.home-page .post h2 a:hover { color: var(--tape); }
.home-page .post .date {
  align-self: baseline;
  font-family: "IBM Plex Sans", system-ui, sans-serif;
  font-size: .86rem;
  grid-column: 2;
  grid-row: 1;
  margin-left: 1rem;
  white-space: nowrap;
}
.home-page .post p {
  color: var(--muted);
  font-size: .95rem;
  grid-column: 1 / -1;
  margin: .28rem 0 0;
  max-width: 640px;
}
.home-page .post > a:last-child { display: none; }

/* About page: same editorial system, with a slightly broader introduction. */
.about-page .wrap { max-width: 760px; }
.about-page .site-nav { margin: 0; }
.about-page header { padding: 3.8rem 0 2rem; }
.about-page h1 {
  font-size: clamp(3rem, 8vw, 4.5rem);
  font-weight: 600;
  letter-spacing: -.045em;
}
.about-page .lede {
  font-family: "IBM Plex Sans", system-ui, sans-serif;
  font-size: clamp(1.4rem, 3vw, 1.75rem);
  font-weight: 600;
  line-height: 1.35;
}
.about-page h2 { font-size: 2rem; letter-spacing: -.03em; }

@media (max-width: 680px) {
  body { font-size: 17px; }
  .site-nav { padding-top: 1.15rem; }
  .post-page header { padding-top: 2.6rem; }
  .post-page .notion-columns { grid-template-columns: 1fr; }
  .home-page .post { grid-template-columns: 1fr; }
  .home-page .post .date { grid-column: 1; grid-row: 2; margin: .15rem 0 0; }
  .home-page .post p { grid-row: 3; }
}

/* Newsletter signup (injected at the end of every page by tools/build_dist.py). */
.wrap .newsletter {
  border-top: 1px solid var(--rule);
  margin-top: 4rem;
  padding-top: 2rem;
}
.wrap .newsletter h2 {
  font-size: 1.35rem;
  font-weight: 600;
  letter-spacing: -.015em;
  line-height: 1.2;
  margin: 0 0 .35rem;
}
.wrap .newsletter > p { color: var(--muted); margin: 0 0 1rem; }
.newsletter form { display: flex; flex-wrap: wrap; gap: .6rem; }
.newsletter form[hidden] { display: none; }
.newsletter input[type="email"] {
  background: var(--panel);
  border: 1px solid var(--rule);
  border-radius: 6px;
  color: var(--ink);
  flex: 1 1 16rem;
  font: inherit;
  min-width: 0;
  padding: .6rem .8rem;
}
.newsletter input[type="email"]:focus-visible { outline: 2px solid var(--tape); outline-offset: 1px; border-color: transparent; }
.newsletter button {
  background: var(--tape);
  border: 0;
  border-radius: 6px;
  color: #fff;
  cursor: pointer;
  flex: 0 0 auto;
  font: inherit;
  font-weight: 500;
  padding: .6rem 1.2rem;
}
.newsletter button:hover { filter: brightness(1.08); }
.newsletter button:focus-visible { outline: 2px solid var(--ink); outline-offset: 2px; }
.newsletter button:disabled { opacity: .6; cursor: progress; }
.wrap .newsletter .nl-msg { margin: .75rem 0 0; min-height: 1.5em; color: var(--muted); }
.wrap .newsletter .nl-msg[data-state="ok"] { color: var(--ink); font-weight: 500; }
.wrap .newsletter .nl-msg[data-state="error"] { color: #b3261e; }
.nl-hp, .nl-sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.nl-hp { left: -9999px; }