:root {
  --ink: #1c2340;
  --muted: #5d6385;
  --line: #ddd8cb;
  --paper: #f3f0e9;
  --card: #fbfaf6;
  --accent: #1f35c8;
  --code-bg: #ebe7da;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 64px; }
body {
  margin: 0; background: var(--paper); color: var(--ink);
  font: 16px/1.6 "Overpass", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
a { color: var(--accent); }

.top {
  position: sticky; top: 0; z-index: 2; padding: 12px 20px;
  background: rgba(243, 240, 233, .94); backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--line);
}
.back { text-decoration: none; font-weight: 600; }
.top { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.brand { display: inline-flex; align-items: center; gap: 7px; text-decoration: none; color: var(--ink); font-weight: 600; letter-spacing: .04em; font-size: .85rem; }
.brand:hover { color: var(--accent); }
/* All-caps text: nudge the mark up to its cap-height center (Overpass sits high in its line box). */
.brand .mark { width: 15px; height: 15px; display: block; transform: translateY(-1.25px); }
.back:hover { text-decoration: underline; }

main { max-width: 860px; margin: 0 auto; padding: 32px 20px 80px; }
h1 { font-size: 2rem; line-height: 1.2; color: var(--accent); margin: 0 0 12px; }
h2 { font-size: 1.35rem; color: var(--accent); margin: 48px 0 12px; padding-top: 24px; border-top: 1px solid var(--line); }
h3 { font-size: 1.05rem; margin: 28px 0 8px; }
.lede { font-size: 1.1rem; color: var(--ink); max-width: 62ch; }
.meta { color: var(--muted); font-size: .9rem; min-height: 1.4em; margin: 0 0 24px; }
p, li { max-width: 72ch; }

.toc {
  background: var(--card); border: 1px solid var(--line); border-radius: 12px;
  padding: 14px 20px; margin: 20px 0 8px; font-size: .95rem;
}
.toc ol { margin: 6px 0 0; padding-left: 20px; }
.toc li { margin: 2px 0; }

code {
  font: .88em ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  background: var(--code-bg); padding: 1px 5px; border-radius: 4px;
  overflow-wrap: break-word;
}
pre {
  background: #1c2340; color: #e8eaf6; border-radius: 10px; padding: 14px 16px;
  overflow-x: auto; font-size: .82rem; line-height: 1.5; max-width: none;
}
pre code { background: none; padding: 0; color: inherit; overflow-wrap: normal; }

.table-wrap { overflow-x: auto; margin: 12px 0 16px; background: var(--card); border: 1px solid var(--line); border-radius: 10px; }
table { width: 100%; border-collapse: collapse; font-size: .92rem; }
th, td { text-align: left; vertical-align: top; padding: 8px 12px; border-bottom: 1px solid var(--line); }
th { background: #e9e5d9; font-size: .8rem; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); }
tbody tr:last-child td { border-bottom: 0; }
td.sub { background: #efebdf; color: var(--muted); font-size: .82rem; text-transform: uppercase; letter-spacing: .04em; }

ol.steps { padding-left: 22px; }
ol.steps li { margin: 12px 0; }

@media (max-width: 600px) {
  body { font-size: 15px; }
  h1 { font-size: 1.6rem; }
  main { padding: 24px 16px 64px; }
}