/* ============================================================
   rothcliff.com — shared stylesheet for the crawlable sub-pages
   (privacy / about / contact / terms / disclaimer / guides / 404).
   The homepage (index.html) keeps its own inline CSS on the LCP
   critical path; this file mirrors the same visual system (the
   oklch "paper" palette, Source Serif 4 / IBM Plex fonts, the ink
   mark, the clay accent) so the sub-pages read as one native site.
   ============================================================ */

:root {
  --paper: oklch(0.985 0.005 80);
  --paper-2: oklch(0.965 0.008 80);
  --paper-3: oklch(0.945 0.010 80);
  --rule: oklch(0.88 0.010 80);
  --rule-2: oklch(0.80 0.012 80);
  --ink: oklch(0.20 0.012 70);
  --ink-2: oklch(0.38 0.012 70);
  --ink-3: oklch(0.55 0.010 70);
  --ink-faint: oklch(0.62 0.010 70);
  --clay: oklch(0.58 0.110 38);
  --clay-soft: oklch(0.92 0.040 50);
  --teal: oklch(0.50 0.060 200);
  --teal-soft: oklch(0.93 0.025 195);
  --serif: "Source Serif 4", "Source Serif Pro", Georgia, serif;
  --sans: "IBM Plex Sans", -apple-system, BlinkMacSystemFont, "Helvetica Neue", Helvetica, Arial, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, monospace;
  --maxw: 1240px;
  --readw: 860px;
}

*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--sans);
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  font-feature-settings: "ss01", "cv11";
  line-height: 1.5;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

a { color: var(--ink); text-underline-offset: 3px; text-decoration-thickness: 1px; }
a:hover { color: var(--clay); }

h1, h2, h3, h4 { font-family: var(--serif); font-weight: 500; letter-spacing: -0.01em; line-height: 1.15; margin: 0; }
h1 { font-size: clamp(2.0rem, 3.6vw, 3.0rem); letter-spacing: -0.025em; font-weight: 500; }
h2 { font-size: clamp(1.5rem, 2.2vw, 1.9rem); letter-spacing: -0.018em; }
h3 { font-size: 1.15rem; letter-spacing: -0.01em; font-weight: 600; }

.num { font-family: var(--mono); font-variant-numeric: tabular-nums; font-feature-settings: "tnum"; }
.eyebrow {
  font-family: var(--mono); font-size: 0.72rem; text-transform: uppercase;
  letter-spacing: 0.14em; color: var(--ink-3); font-weight: 500;
}

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 28px; width: 100%; }
main { flex: 1 0 auto; }

/* --- header --- */
.site-header {
  border-bottom: 1px solid var(--rule);
  background: var(--paper);
}
.site-header__inner {
  padding: 14px 28px; display: flex; align-items: center; justify-content: space-between;
  gap: 24px;
}
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.brand__mark {
  width: 28px; height: 28px; background: var(--ink); color: var(--paper);
  display: grid; place-items: center; font-family: var(--serif); font-size: 1rem; font-weight: 600;
  letter-spacing: -0.02em;
}
.brand__name { font-family: var(--serif); font-size: 1.05rem; font-weight: 600; letter-spacing: -0.01em; color: var(--ink); }
.brand__tld { color: var(--ink-3); font-weight: 400; }
.site-nav { display: flex; gap: 24px; align-items: center; color: var(--ink-2); font-size: 0.85rem; }
.site-nav a { text-decoration: none; color: var(--ink-2); }
.site-nav a:hover { color: var(--ink); }
@media (max-width: 640px) {
  .site-nav { gap: 16px; font-size: 0.8rem; }
  .site-header__inner { padding: 12px 20px; flex-wrap: wrap; }
}

/* --- hero --- */
.hero {
  border-bottom: 1px solid var(--rule);
  background: var(--paper-2);
  padding: 48px 0 40px;
}
.hero__eyebrow {
  font-family: var(--mono); font-size: 0.72rem; text-transform: uppercase;
  letter-spacing: 0.14em; color: var(--ink-3); font-weight: 500;
  display: inline-flex; align-items: center; gap: 8px; margin-bottom: 16px;
}
.hero__eyebrow .dot { width: 7px; height: 7px; background: var(--clay); transform: rotate(45deg); display: inline-block; }
.hero h1 { max-width: 20ch; }
.hero__sub { font-size: 1.12rem; color: var(--ink-2); margin: 16px 0 0; max-width: 62ch; line-height: 1.55; }
.hero__sub a { color: var(--ink); text-decoration: underline; text-decoration-color: var(--clay); text-underline-offset: 3px; }

/* --- prose section --- */
.section { padding: 44px 0 16px; }
.prose { font-size: 1.0rem; line-height: 1.65; color: var(--ink-2); max-width: var(--readw); }
.prose h2 { font-family: var(--serif); color: var(--ink); margin-top: 34px; margin-bottom: 12px; }
.prose h2:first-child { margin-top: 0; }
.prose h3 { font-family: var(--serif); font-size: 1.2rem; font-weight: 600; color: var(--ink); margin-top: 26px; margin-bottom: 8px; }
.prose h4 { font-family: var(--sans); font-size: 0.98rem; color: var(--ink); margin: 16px 0 6px; }
.prose p { margin: 0 0 14px; }
.prose ul, .prose ol { margin: 0 0 16px; padding-left: 22px; }
.prose li { margin-bottom: 7px; }
.prose strong { color: var(--ink); font-weight: 600; }
.prose a { color: var(--ink); text-decoration: underline; text-decoration-color: var(--clay); text-underline-offset: 4px; }
.prose .lead { font-size: 1.1rem; color: var(--ink); }
.prose blockquote, .prose .pullquote {
  display: block;
  font-family: var(--serif); font-size: 1.2rem; line-height: 1.4;
  color: var(--ink); border-left: 2px solid var(--clay);
  padding: 4px 0 4px 18px; margin: 20px 0;
  max-width: 52ch; font-style: normal;
}

/* --- callout cards (guides hub + not-advice boxes) --- */
.callout {
  border: 1px solid var(--rule);
  background: var(--paper);
  padding: 18px 22px;
  margin: 0 0 16px;
}
.callout h4 { font-family: var(--serif); font-size: 1.1rem; font-weight: 600; margin: 0 0 6px; }
.callout h4 a { text-decoration: none; color: var(--ink); }
.callout h4 a:hover { color: var(--clay); }
.callout p { margin: 0; color: var(--ink-2); font-size: 0.95rem; line-height: 1.55; }
.callout--clay { border-left: 3px solid var(--clay); background: var(--clay-soft); }
.callout--gap { margin-top: 28px; border-left: 3px solid var(--ink); background: var(--paper-2); }

/* --- breadcrumb --- */
.crumbs { font-family: var(--mono); font-size: 0.74rem; color: var(--ink-3); letter-spacing: 0.04em; margin-bottom: 14px; }
.crumbs a { color: var(--ink-2); text-decoration: none; }
.crumbs a:hover { color: var(--ink); }
.crumbs .sep { margin: 0 8px; color: var(--rule-2); }

/* --- article meta --- */
.article-meta { font-family: var(--mono); font-size: 0.74rem; color: var(--ink-3); margin-top: 14px; letter-spacing: 0.02em; }

/* --- footer --- */
footer.site-footer {
  flex-shrink: 0;
  margin-top: 56px;
  border-top: 1px solid var(--rule);
  background: var(--paper-2);
}
footer.site-footer .inner {
  max-width: var(--maxw); margin: 0 auto; padding: 48px 28px 28px;
}
.footer-cols {
  display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 40px;
}
@media (max-width: 900px) {
  .footer-cols { grid-template-columns: 1fr 1fr; gap: 32px; }
}
@media (max-width: 560px) {
  .footer-cols { grid-template-columns: 1fr; gap: 28px; }
}
.footer-brand .brand { margin-bottom: 10px; }
.footer-col h4 {
  font-family: var(--sans); font-size: 0.72rem; font-weight: 600;
  letter-spacing: 0.16em; text-transform: uppercase; color: var(--ink-3);
  margin-bottom: 14px;
}
.footer-col ul { list-style: none; padding: 0; margin: 0; }
.footer-col li { margin-bottom: 8px; font-size: 0.92rem; }
.footer-col a { color: var(--ink-2); text-decoration: none; }
.footer-col a:hover { color: var(--ink); }
.footer-tagline { color: var(--ink-2); font-size: 0.92rem; max-width: 36ch; margin: 0; line-height: 1.55; }
.footer-legal { padding: 28px 0 0; border-top: 1px solid var(--rule); margin-top: 36px; color: var(--ink-2); font-size: 0.83rem; line-height: 1.65; max-width: 92ch; }
.footer-legal b { color: var(--ink); }
.footer-bottom {
  display: flex; justify-content: space-between; align-items: center; gap: 16px;
  padding-top: 16px; margin-top: 20px; border-top: 1px solid var(--rule);
  color: var(--ink-3); font-size: 0.8rem;
}
.footer-bottom a { color: var(--ink-2); }
@media (max-width: 640px) {
  .footer-bottom { flex-direction: column; align-items: flex-start; gap: 12px; }
}

/* --- buttons --- */
.btn-primary {
  appearance: none; border: 0; background: var(--ink); color: var(--paper);
  padding: 12px 22px; font-family: var(--sans); font-size: 0.95rem; font-weight: 500;
  cursor: pointer; letter-spacing: 0.01em; text-decoration: none; display: inline-block;
}
.btn-primary:hover { background: oklch(0.30 0.012 70); color: var(--paper); }
.btn-ghost {
  appearance: none; border: 1px solid var(--rule-2); background: var(--paper); color: var(--ink);
  padding: 10px 18px; font-family: var(--sans); font-size: 0.88rem; cursor: pointer;
  text-decoration: none; display: inline-block;
}
.btn-ghost:hover { border-color: var(--ink); color: var(--ink); }

/* --- definition list for contact --- */
.kv { display: grid; grid-template-columns: auto 1fr; gap: 8px 18px; margin: 0 0 16px; font-size: 0.95rem; }
.kv dt { color: var(--ink-3); font-family: var(--mono); font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.08em; padding-top: 2px; }
.kv dd { margin: 0; color: var(--ink); }

/* --- 404 --- */
body.error-page { display: grid; place-items: center; }
body.error-page main { max-width: 560px; padding: 40px 28px; text-align: center; flex: 0 0 auto; }
.error-mark {
  width: 36px; height: 36px; background: var(--ink); color: var(--paper);
  display: grid; place-items: center; font-family: var(--serif); font-size: 1.2rem;
  font-weight: 600; margin: 0 auto 24px; letter-spacing: -0.02em;
}