/* Mirrors the app's design tokens: Source Serif 4, a flat print-like surface,
   tight 4px radii, teal for primary and magenta for attention. */
:root {
  --bg: #f3f2f2;
  --surface: #eae9e9;
  --ink: #201e1d;
  --muted: #7d7979;
  --divider: rgba(32, 30, 29, 0.16);
  --primary: #0088b0;
  --primary-soft: #e9f8ff;
  --primary-deep: #006786;
  --accent2: #d6006c;
  --accent2-soft: #fff1f4;
  --accent2-deep: #790e3d;
  --radius: 4px;
  --measure: 720px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #2d2b2b;
    --surface: #444141;
    --ink: #f8f4f4;
    --muted: #bab6b6;
    --divider: rgba(248, 244, 244, 0.18);
    --primary: #62c5ee;
    --primary-soft: #004961;
    --primary-deep: #cbeeff;
    --accent2: #ff90b1;
    --accent2-soft: #4b1528;
    --accent2-deep: #ffdee6;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  padding: 0 20px 72px;
  background: var(--bg);
  color: var(--ink);
  font-family: 'Source Serif 4', Georgia, 'Times New Roman', serif;
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

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

header.site {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  padding: 28px 0 20px;
  border-bottom: 1px solid var(--divider);
  margin-bottom: 36px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  font-size: 19px;
  text-decoration: none;
  color: var(--ink);
}

.brand .mark {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--primary-soft);
  color: var(--primary-deep);
  display: grid;
  place-items: center;
  font-size: 15px;
}

nav.site a {
  color: var(--muted);
  text-decoration: none;
  margin-left: 18px;
  font-size: 15px;
}
nav.site a:hover, nav.site a:focus { color: var(--primary); text-decoration: underline; }

h1 { font-size: 38px; font-weight: 600; line-height: 1.2; margin: 0 0 8px; letter-spacing: -0.2px; }
h2 { font-size: 22px; font-weight: 600; margin: 40px 0 10px; }
h3 { font-size: 17px; font-weight: 600; margin: 24px 0 6px; }
p, li { color: var(--ink); }
a { color: var(--primary); }

.kicker {
  text-transform: uppercase;
  letter-spacing: 0.09em;
  font-size: 11px;
  color: var(--primary);
  margin: 0 0 6px;
}

.lede { font-size: 19px; color: var(--muted); margin: 0 0 4px; }
.updated { font-size: 14px; color: var(--muted); margin: 0 0 8px; }

.callout {
  background: var(--accent2-soft);
  border: 1px solid var(--divider);
  border-radius: var(--radius);
  padding: 16px 18px;
  margin: 28px 0;
}
.callout p { margin: 0; font-size: 16px; color: var(--accent2-deep); }
.callout strong { color: var(--accent2-deep); }

.note {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 16px 18px;
  margin: 24px 0;
}
.note p { margin: 0; font-size: 16px; }

table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0 8px;
  font-size: 16px;
  display: block;
  overflow-x: auto;
}
th, td {
  text-align: left;
  padding: 10px 14px 10px 0;
  border-bottom: 1px solid var(--divider);
  vertical-align: top;
}
th { font-weight: 600; white-space: nowrap; }

ul { padding-left: 22px; }
li { margin-bottom: 7px; }

.features { display: grid; gap: 14px; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); margin: 28px 0; }
.feature { background: var(--surface); border-radius: var(--radius); padding: 18px; }
.feature h3 { margin: 0 0 5px; }
.feature p { margin: 0; font-size: 15px; color: var(--muted); }

footer.site {
  margin-top: 56px;
  padding-top: 22px;
  border-top: 1px solid var(--divider);
  font-size: 14px;
  color: var(--muted);
}
footer.site a { color: var(--muted); margin-right: 16px; }

@media (max-width: 560px) {
  body { font-size: 16px; }
  h1 { font-size: 30px; }
  nav.site a { margin: 0 16px 0 0; }
  header.site { padding-top: 22px; }
}