/* Content pages (docs, premium, changelog, about, terms, privacy).
   Self-sufficient base: link site.css (identity tokens: Survey Grid contours,
   crop marks, tick ruler, [data-theme] palette) then this file. All colors
   come from site.css custom properties — nothing hardcoded here. */

:root {
  --font-body: system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --font-mono: ui-monospace, 'Cascadia Code', 'SF Mono', Consolas, monospace;
}

* { box-sizing: border-box; }

html { height: auto; }
body {
  margin: 0;
  min-height: 100vh;
  background-color: var(--page-bg);
  color: var(--page-text);
  font-family: var(--font-body);
  line-height: 1.6;
  overflow-x: hidden;
}

/* ---- header (layout only; site.css supplies the tick ruler + border) ---- */
.site-head {
  display: flex;
  align-items: center;
  gap: 18px;
  padding-top: 14px;
  padding-left: clamp(16px, 3vw, 44px);
  padding-right: clamp(16px, 3vw, 44px);
  position: relative;
  z-index: 5;
}
.brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 800;
  font-size: 1.1rem;
  color: var(--page-text);
  text-decoration: none;
  letter-spacing: -.01em;
}
.brand-dot { fill: var(--page-accent); }
.head-note {
  margin: 0;
  flex: 1;
  text-align: center;
  font-size: .82rem;
  color: var(--page-dim);
  font-family: var(--font-mono);
}
.head-links { display: flex; align-items: center; gap: 16px; }
.head-links a { color: var(--page-dim); text-decoration: none; font-size: .9rem; }
.head-links a:hover, .head-links a[aria-current="page"] { color: var(--page-text); }

/* ---- content column ---- */
.content {
  max-width: 880px;
  margin: 0 auto;
  padding: 10px clamp(16px, 3vw, 44px) 20px;
  position: relative;
  z-index: 1;
}
.content section { padding: clamp(26px, 4vw, 44px) 0; border-top: 1px solid var(--contour); }
.content section:first-of-type { border-top: 0; padding-top: clamp(22px, 3.5vw, 36px); }

/* page-level REF eyebrow above the h1 */
.page-ref {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: .72rem;
  font-weight: 600;
  letter-spacing: .14em;
  color: var(--page-accent);
}

.content h1 {
  font-family: var(--font-display);
  text-transform: var(--display-transform, none);
  letter-spacing: var(--display-tracking, -.02em);
  font-size: clamp(1.9rem, 4vw, 3rem);
  line-height: 1.1;
  margin: 0 0 14px;
}
.content h2 {
  font-family: var(--font-display);
  text-transform: var(--display-transform, none);
  letter-spacing: var(--display-tracking, -.015em);
  font-size: clamp(1.35rem, 2.4vw, 1.9rem);
  margin: 0 0 18px;
}
/* section REF eyebrow — same instrument as the landing page's .story h2 */
.content h2[data-ref]::before {
  content: attr(data-ref);
  display: block;
  font-family: var(--font-mono);
  font-size: .72rem;
  font-weight: 600;
  letter-spacing: .12em;
  color: var(--page-accent);
  margin-bottom: 6px;
  text-transform: none;
}
.content h3 {
  font-size: 1.02rem;
  margin: 26px 0 8px;
}
.content h3:first-child { margin-top: 0; }

.content p, .content li, .content dd { color: var(--page-dim); }
.content p { max-width: 76ch; margin: 0 0 14px; line-height: 1.65; }
.content p:last-child { margin-bottom: 0; }
.content strong { color: var(--page-text); }
.content a { color: var(--page-accent); }
.content a:focus-visible { outline: 2px solid var(--page-accent); outline-offset: 2px; }
.lede { font-size: 1.06rem; }
.lede em { color: var(--page-text); }
.fine { font-size: .85rem; }

.content ul, .content ol { max-width: 76ch; margin: 0 0 14px; padding-left: 22px; display: grid; gap: 8px; line-height: 1.65; }
.content dl { max-width: 76ch; margin: 0 0 14px; }
.content dt { font-weight: 700; margin-top: 16px; color: var(--page-text); }
.content dd { margin: 5px 0 0; line-height: 1.6; }

/* ---- code ---- */
.content pre {
  margin: 0 0 14px;
  padding: 16px;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: .8rem;
  line-height: 1.55;
  background: var(--code-bg);
  color: var(--page-text);
  border: 1px solid var(--border);
  border-radius: 10px;
  max-width: 860px;
}
.content code {
  font-family: var(--font-mono);
  font-size: .85em;
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 1px 5px;
  white-space: nowrap;
}
.content pre code { background: none; border: 0; padding: 0; white-space: inherit; }

kbd {
  font-family: var(--font-mono);
  font-size: .78em;
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-bottom-width: 2px;
  border-radius: 4px;
  padding: 1px 6px;
  white-space: nowrap;
  color: var(--page-text);
}

/* ---- tables ---- */
.content table {
  border-collapse: collapse;
  width: 100%;
  max-width: 860px;
  font-size: .9rem;
  margin: 0 0 14px;
}
.content th, .content td {
  text-align: left;
  vertical-align: top;
  padding: 8px 12px;
  border-bottom: 1px solid var(--border);
  color: var(--page-dim);
}
.content th {
  color: var(--page-text);
  font-family: var(--font-mono);
  font-size: .72rem;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
}
.content td:first-child { color: var(--page-text); white-space: nowrap; }

/* ---- changelog ---- */
.log { list-style: none; padding: 0; margin: 0; max-width: 76ch; display: grid; gap: 0; }
.log > li {
  display: grid;
  grid-template-columns: 110px 1fr;
  column-gap: 20px;
  padding: 16px 0;
  border-top: 1px solid var(--contour);
}
.log > li:first-child { border-top: 0; padding-top: 0; }
.log-date {
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing: .06em;
  color: var(--page-accent);
  padding-top: 3px;
}
.log-entry { color: var(--page-dim); line-height: 1.6; }
.log-entry strong { color: var(--page-text); display: block; margin-bottom: 2px; }
.log-entry ul { margin: 6px 0 0; gap: 4px; font-size: .95rem; }

/* ---- premium plan card ---- */
.plan-card {
  max-width: 560px;
  border: 1px solid var(--border);
  border-radius: var(--page-radius, 8px);
  background: var(--code-bg);
  padding: 22px 24px;
  margin: 0 0 16px;
}
.plan-ref {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .14em;
  color: var(--page-dim);
}
.plan-price {
  font-family: var(--font-display);
  text-transform: var(--display-transform, none);
  letter-spacing: var(--display-tracking, 0);
  font-size: 2rem;
  line-height: 1;
  margin: 0 0 4px;
}
.plan-price small { font-size: .9rem; color: var(--page-dim); letter-spacing: 0; }
.plan-note { margin: 0 0 14px; font-size: .88rem; color: var(--page-dim); }
.plan-card ul { margin-bottom: 0; }

/* ---- CTA button ---- */
.cta-open {
  display: inline-block;
  margin-top: 10px;
  padding: 11px 22px;
  font-size: .95rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: 7px;
  background: var(--page-accent);
  color: #fff;
  border: 1px solid var(--page-accent);
}
.cta-open:hover { filter: brightness(1.08); }
.cta-open.ghost { background: transparent; color: var(--page-accent); }
/* the filled CTA's white text must beat the `.content a` link-color rule */
a.cta-open:not(.ghost) { color: #fff; }

/* ---- footer ---- */
.site-foot {
  padding: 28px 20px 34px;
  text-align: center;
  border-top: 1px solid var(--contour);
}
.site-foot p { margin: 0; color: var(--page-dim); font-size: .85rem; }
.site-foot a { color: var(--page-dim); }
.site-foot a:hover { color: var(--page-text); }

@media (max-width: 760px) {
  .head-note { display: none; }
  .site-head { flex-wrap: wrap; gap: 10px 14px; }
  .head-links { flex-wrap: wrap; gap: 10px 14px; }
  .content table { display: block; overflow-x: auto; }
  .log > li { grid-template-columns: 1fr; row-gap: 4px; }
}