:root {
  --ink: #1d2a1c;
  --paper: #f6f4ec;
  --moss: #3b6b3a;
  --line: #d8d3c4;
  --muted: #54614f;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.65;
}
.wrap { max-width: 760px; margin: 0 auto; padding: 24px 20px 80px; }
header.bar {
  display: flex; align-items: center; justify-content: space-between;
  max-width: 760px; margin: 0 auto; padding: 18px 20px;
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; color: var(--ink); text-decoration: none; }
.mark {
  width: 34px; height: 34px; border-radius: 9px; background: var(--ink);
  color: var(--paper); display: grid; place-items: center; font-weight: 800; font-size: 14px;
}
.cta {
  background: var(--moss); color: #fff; text-decoration: none; font-weight: 700;
  padding: 10px 16px; border-radius: 999px; font-size: 14px;
}
nav.crumbs { font-size: 13px; color: var(--muted); margin-bottom: 8px; }
nav.crumbs a { color: var(--moss); text-decoration: none; }
h1 { font-size: 2rem; line-height: 1.15; margin: 6px 0 12px; }
h2 { font-size: 1.35rem; margin: 36px 0 10px; }
h3 { font-size: 1.08rem; margin: 22px 0 6px; }
p, li { font-size: 1.02rem; }
.lede { font-size: 1.15rem; color: var(--muted); }
.callout {
  background: #fff; border: 1px solid var(--line); border-left: 4px solid var(--moss);
  border-radius: 12px; padding: 16px 18px; margin: 18px 0;
}
table { width: 100%; border-collapse: collapse; margin: 14px 0; background: #fff; border: 1px solid var(--line); border-radius: 12px; overflow: hidden; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); font-size: 0.98rem; }
th { background: #eef0e6; }
code { background: #eef0e6; padding: 2px 6px; border-radius: 6px; font-size: 0.95em; }
.sources li { margin-bottom: 10px; }
.sources a { color: var(--moss); }
.appbox { background: var(--ink); color: var(--paper); border-radius: 16px; padding: 22px; margin: 32px 0; }
.appbox h2 { margin-top: 0; color: #fff; }
.appbox p { color: #e7ecdf; }
.appbox a { color: #d8f0c8; font-weight: 700; }
.related { background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 16px 18px; margin: 24px 0; }
.related a { color: var(--moss); }
.mini-calc {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 18px;
  margin: 24px 0;
}
.mini-calc label {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 700;
  margin: 12px 0;
}
.mini-calc input {
  border: 1px solid var(--line);
  border-radius: 10px;
  color: var(--ink);
  font: inherit;
  padding: 10px 12px;
  width: 100%;
}
.mini-calc button {
  background: var(--moss);
  border: 0;
  border-radius: 999px;
  color: #fff;
  cursor: pointer;
  font-weight: 800;
  padding: 11px 16px;
}
.mini-calc__result {
  background: #eef0e6;
  border-radius: 12px;
  color: var(--ink);
  margin-top: 14px;
  padding: 12px 14px;
}
.disclaimer { font-size: 0.9rem; color: var(--muted); }
footer { border-top: 1px solid var(--line); margin-top: 50px; }
footer .wrap { padding: 22px 20px; font-size: 13px; color: var(--muted); }
footer a { color: var(--moss); text-decoration: none; }