:root {
  --green: #2f7d4f;
  --green-dark: #1f5c39;
  --green-soft: #eaf3ed;
  --ink: #1d2421;
  --muted: #5d6b63;
  --line: #dfe7e1;
  --bg: #ffffff;
  --bg-alt: #f6f9f7;
  --amber: #b07a16;
  --amber-soft: #fbf3e0;
  --maxw: 760px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  font-family: var(--font);
  font-size: 18px;
  line-height: 1.65;
  color: var(--ink);
  background: var(--bg);
}

a { color: var(--green-dark); text-decoration: underline; text-underline-offset: 2px; }
a:hover { color: var(--green); }

/* ---------- header / footer ---------- */
.site-header {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; padding: 0.9rem 1.1rem;
  border-bottom: 1px solid var(--line); background: var(--bg);
  position: sticky; top: 0; z-index: 10;
}
.brand { font-weight: 700; font-size: 1.1rem; text-decoration: none; color: var(--ink); }
.brand span { color: var(--green-dark); }
.site-nav a { font-size: 0.95rem; }

main { max-width: var(--maxw); margin: 0 auto; padding: 1.4rem 1.1rem 3rem; }

.site-footer {
  max-width: var(--maxw); margin: 0 auto; padding: 1.5rem 1.1rem 3rem;
  border-top: 1px solid var(--line); color: var(--muted); font-size: 0.9rem;
}
.site-footer .fineprint { font-size: 0.82rem; opacity: 0.8; }

/* ---------- landing ---------- */
.hero { text-align: center; padding: 1.5rem 0 0.5rem; }
.hero h1 { font-size: 2rem; margin: 0.2rem 0; }
.tagline { color: var(--muted); margin: 0.2rem 0 1.3rem; }
#search {
  width: 100%; padding: 0.8rem 1rem; font-size: 1rem; font-family: var(--font);
  border: 1.5px solid var(--line); border-radius: 12px; background: var(--bg-alt);
}
#search:focus { outline: none; border-color: var(--green); background: #fff; }

.cat {
  font-size: 0.82rem; text-transform: uppercase; letter-spacing: 0.06em;
  color: var(--muted); margin: 1.8rem 0 0.7rem; font-weight: 700;
}
.cards { display: grid; grid-template-columns: 1fr; gap: 0.7rem; }
@media (min-width: 620px) { .cards { grid-template-columns: 1fr 1fr; } }

.card {
  display: block; padding: 1rem 1.1rem; border: 1px solid var(--line);
  border-radius: 14px; text-decoration: none; color: var(--ink);
  background: var(--bg); transition: border-color .12s, transform .12s, box-shadow .12s;
}
.card:hover { border-color: var(--green); transform: translateY(-1px); box-shadow: 0 4px 14px rgba(47,125,79,.08); }
.card-icon { font-size: 1.4rem; }
.card-title { display: block; font-weight: 700; margin-top: 0.2rem; }
.card-desc { display: block; color: var(--muted); font-size: 0.92rem; line-height: 1.45; margin-top: 0.15rem; }
.card-updated { display: block; color: var(--green-dark); font-size: 0.78rem; margin-top: 0.45rem; }

/* ---------- topic page ---------- */
.back { margin: 0 0 0.6rem; }
.back a { font-size: 0.92rem; text-decoration: none; color: var(--muted); }
.topic-title { font-size: 1.85rem; line-height: 1.25; margin: 0.2rem 0 0.3rem; }
.updated { color: var(--green-dark); font-size: 0.85rem; margin: 0 0 1.2rem; }

.toc {
  background: var(--bg-alt); border: 1px solid var(--line); border-radius: 12px;
  padding: 0.8rem 1rem; margin: 0 0 1.5rem;
}
.toc-title { margin: 0 0 0.4rem; font-weight: 700; font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--muted); }
.toc ul { list-style: none; margin: 0; padding: 0; }
.toc li { margin: 0.15rem 0; }
.toc-l3 { padding-left: 1rem; font-size: 0.93rem; }
.toc a { text-decoration: none; }

.topic-body h2 { font-size: 1.35rem; margin: 2rem 0 0.6rem; padding-top: 0.4rem; border-top: 1px solid var(--line); }
.topic-body h3 { font-size: 1.12rem; margin: 1.4rem 0 0.4rem; }
.topic-body h2:first-child { border-top: none; margin-top: 0.5rem; }
.topic-body p { margin: 0.7rem 0; }
.topic-body ul, .topic-body ol { margin: 0.6rem 0; padding-left: 1.4rem; }
.topic-body li { margin: 0.35rem 0; }
.topic-body hr { border: none; border-top: 1px solid var(--line); margin: 1.6rem 0; }
.topic-body blockquote {
  margin: 1rem 0; padding: 0.5rem 1rem; border-left: 3px solid var(--green);
  background: var(--green-soft); color: var(--ink); border-radius: 0 8px 8px 0;
}

/* ---------- callouts ---------- */
.callout { border-radius: 12px; padding: 0.8rem 1rem; margin: 1.1rem 0; border: 1px solid; }
.callout p:first-child { margin-top: 0; }
.callout p:last-child { margin-bottom: 0; }
.callout-note { background: var(--green-soft); border-color: #c7e0d1; }
.callout-tip { background: var(--green-soft); border-color: #c7e0d1; }
.callout-warning { background: var(--amber-soft); border-color: #ecd9a8; }

/* ---------- business directory helpers ---------- */
.topic-body h3 + ul { margin-top: 0.3rem; }