:root {
  --ink: #1d1d1f;
  --text: #3b3b3f;
  --muted: #5f5f66;
  --line: #e4e1dc;
  --page: #fbfaf8;
  --card: #ffffff;
  --good: #1f6b3a;
  --good-fill: #eef6f0;
  --warn: #8a4b00;
  --warn-fill: #fbf3e6;
  --link: #1b58b8;
  color-scheme: light;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--page);
  color: var(--text);
  font: 400 17px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
main { max-width: 860px; margin: 0 auto; padding: 48px 24px 96px; }
h1 { color: var(--ink); font-size: 2.1rem; line-height: 1.2; font-weight: 600; margin: 8px 0 16px; letter-spacing: -0.01em; }
h2 { color: var(--ink); font-size: 1.35rem; font-weight: 600; margin: 0 0 12px; }
h3 { color: var(--ink); font-size: 1.05rem; font-weight: 600; margin: 0 0 6px; }
section { border-top: 1px solid var(--line); padding: 32px 0 8px; }
.tag { color: var(--muted); font-size: 0.85rem; margin: 0; }
.lede { font-size: 1.1rem; margin: 0 0 12px; }
.total { font-size: 1.1rem; color: var(--ink); margin: 0 0 32px; }
.muted { color: var(--muted); font-size: 0.95rem; }
a { color: var(--link); }
code { font: 0.9em/1.4 ui-monospace, "Cascadia Mono", Consolas, monospace; background: #f0eee9; padding: 1px 5px; border-radius: 4px; color: var(--ink); }
pre { background: var(--ink); color: #f5f5f7; padding: 16px 18px; border-radius: 10px; overflow-x: auto; }
pre code { background: none; color: inherit; padding: 0; }
.two { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; align-items: start; }
.card { border-radius: 12px; padding: 16px 18px; border: 1px solid var(--line); }
.card p { margin: 0; }
.good { background: var(--good-fill); }
.good h3 { color: var(--good); }
.warn { background: var(--warn-fill); }
.warn h3 { color: var(--warn); }
table { width: 100%; border-collapse: collapse; font-size: 0.93rem; margin: 12px 0 16px; background: var(--card); }
th, td { text-align: left; vertical-align: top; padding: 10px 12px; border-bottom: 1px solid var(--line); }
th { color: var(--ink); font-weight: 600; background: #f4f2ee; }
.num td:not(:first-child), .num th:not(:first-child) { text-align: right; white-space: nowrap; }
.have, .facts { padding-left: 20px; }
.have li, .facts li, .steps li { margin-bottom: 8px; }
.steps { padding-left: 22px; margin: 0; }
figure { margin: 0; text-align: center; }
figure svg { width: 100%; max-width: 320px; }
figcaption { color: var(--muted); font-size: 0.85rem; }
.lab { font: 600 13px system-ui, sans-serif; fill: var(--ink); }
.small { font-weight: 400; fill: var(--muted); }
@media (max-width: 720px) {
  .two { grid-template-columns: 1fr; }
  h1 { font-size: 1.7rem; }
  table { font-size: 0.85rem; }
}