/* One stylesheet for the whole apex site. Three pages, no build step. */

:root {
  --paper: #fbfaf7;
  --ink: #1a1917;
  --muted: #6b6862;
  --rule: #e3ded4;
  --accent: #1f5c4d;
  --measure: 34rem;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #14140f;
    --ink: #eae7df;
    --muted: #9a958a;
    --rule: #2c2b25;
    --accent: #7fc9b4;
  }
}

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

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font:
    400 1.0625rem / 1.65 ui-sans-serif,
    system-ui,
    -apple-system,
    "Segoe UI",
    sans-serif;
  font-synthesis-weight: none;
  text-rendering: optimizeLegibility;
}

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

a {
  color: var(--accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.15em;
}

/* ── masthead ─────────────────────────────────────────────────────────── */

header.site {
  border-bottom: 1px solid var(--rule);
  padding: 2.5rem 0 1.25rem;
  margin-bottom: 3rem;
}

.wordmark {
  display: inline-block;
  font:
    500 1.0625rem / 1 ui-serif,
    Georgia,
    "Times New Roman",
    serif;
  letter-spacing: 0.02em;
  color: var(--ink);
  text-decoration: none;
}

.wordmark::before {
  content: "";
  display: inline-block;
  width: 0.5rem;
  height: 0.5rem;
  margin-right: 0.55rem;
  border-radius: 50%;
  background: var(--accent);
  vertical-align: 0.03em;
}

nav.site {
  float: right;
  font-size: 0.875rem;
}
nav.site a {
  color: var(--muted);
  text-decoration: none;
  margin-left: 1.25rem;
}
nav.site a:hover,
nav.site a[aria-current] {
  color: var(--ink);
}
header.site::after {
  content: "";
  display: block;
  clear: both;
}

/* ── document ─────────────────────────────────────────────────────────── */

h1 {
  font:
    400 2rem / 1.15 ui-serif,
    Georgia,
    "Times New Roman",
    serif;
  letter-spacing: -0.015em;
  margin: 0 0 0.5rem;
}

.dateline {
  color: var(--muted);
  font-size: 0.8125rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin: 0 0 2.5rem;
}

.lede {
  font-size: 1.125rem;
  color: var(--ink);
  margin: 0 0 2.5rem;
}

h2 {
  font:
    500 1rem / 1.3 ui-sans-serif,
    system-ui,
    sans-serif;
  letter-spacing: 0.01em;
  margin: 3rem 0 0.75rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--rule);
}

h2 .num {
  display: block;
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  color: var(--muted);
  margin-bottom: 0.4rem;
}

h3 {
  font:
    500 0.9375rem / 1.4 ui-sans-serif,
    system-ui,
    sans-serif;
  margin: 1.75rem 0 0.5rem;
}

p,
li {
  color: var(--ink);
}
p {
  margin: 0 0 1rem;
}
ul {
  padding-left: 1.1rem;
  margin: 0 0 1rem;
}
li {
  margin-bottom: 0.5rem;
}
li::marker {
  color: var(--muted);
}

strong {
  font-weight: 600;
}

dl {
  margin: 0 0 1rem;
}
dt {
  font-weight: 600;
  margin-top: 1rem;
}
dd {
  margin: 0.15rem 0 0;
  color: var(--ink);
}

.note {
  border-left: 2px solid var(--rule);
  padding-left: 1rem;
  color: var(--muted);
  font-size: 0.9375rem;
}

footer.site {
  border-top: 1px solid var(--rule);
  margin-top: 4rem;
  padding: 1.5rem 0 4rem;
  color: var(--muted);
  font-size: 0.8125rem;
}

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

/* ── home ─────────────────────────────────────────────────────────────── */

.home {
  padding: 22vh 0 0;
}
.home h1 {
  font-size: 2.5rem;
}
.home p {
  color: var(--muted);
  max-width: 26rem;
}
.home ul {
  list-style: none;
  padding: 0;
  margin-top: 2rem;
}
.home li {
  margin-bottom: 0.6rem;
}