/* =====================================================================
   Long-form course guides (/guides/*). Loaded alongside shop.css.
   A reading page, not a shop page: one centered measure, left-aligned body
   text (centred paragraphs stop being readable past a couple of lines), and
   a table that scrolls on its own rather than pushing the page sideways.
   ===================================================================== */

.gd { --gd-measure: 74ch; }
.gd-hero { background: linear-gradient(180deg, #FFFFFF, #F5F8FD); border-bottom: 1px solid var(--line); }
.gd-hero .wrap { padding: 30px 56px 36px; text-align: center; }
.gd-crumbs ol { list-style: none; display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; margin: 0 0 14px; padding: 0; font: var(--text-body-sm); color: var(--tx); }
.gd-crumbs a { color: var(--tx); }
.gd-crumbs a:hover { color: var(--ink); }
.gd-crumbs [aria-current] { color: var(--ink); font-weight: 600; }
.gd-h1 {
  font-family: var(--font-display); font-weight: 800; font-size: 44px; line-height: 1.06;
  letter-spacing: -.02em; color: var(--ink); margin: 0 0 14px; text-wrap: balance;
}
.gd-standfirst { font: var(--text-lead); color: var(--tx); margin: 0 auto; max-width: 62ch; }
.gd-updated { font: var(--text-body-sm); color: var(--tx); margin: 18px 0 0; }

.gd-body { padding: 40px 0 80px; }
.gd-body .wrap { max-width: 900px; }
.gd-sec + .gd-sec { margin-top: 40px; }
.gd-h2 {
  font-family: var(--font-display); font-weight: 800; font-size: 27px; line-height: 1.18;
  letter-spacing: -.01em; color: var(--ink); margin: 0 0 12px; text-wrap: balance;
}
.gd-h3 { font-family: var(--font-display); font-weight: 800; font-size: 19px; color: var(--ink); margin: 26px 0 8px; }
.gd-body p { font: var(--text-body-md); color: var(--tx); margin: 0 0 14px; max-width: var(--gd-measure); }
.gd-body ul, .gd-body ol { margin: 0 0 16px; padding-left: 22px; max-width: var(--gd-measure); }
.gd-body li { font: var(--text-body-md); color: var(--tx); margin-bottom: 8px; }
.gd-body li::marker { color: #9AA4B8; }
/* Link colour is scoped to prose elements ONLY. A blanket `.gd-body a` rule bled
   into the solid CTA and rendered blue text on a navy button, which fails
   contrast. Never style `a` broadly on a surface that also contains buttons. */
.gd-body p a, .gd-body li a, .gd-body td a { color: var(--blue); font-weight: 600; }
.gd-body strong { color: var(--ink); }

/* Answer-first callout: the direct answer to the section's question. */
.gd-answer {
  background: #F1F5FD; border: 1px solid var(--line); border-left: 4px solid var(--blue);
  border-radius: 0 12px 12px 0; padding: 16px 20px; margin: 0 0 18px; max-width: var(--gd-measure);
}
.gd-answer p { margin: 0; color: var(--ink); }

.gd-tablewrap { overflow-x: auto; margin: 0 0 18px; border: 1px solid var(--line); border-radius: 12px; background: #fff; }
.gd-table { border-collapse: collapse; width: 100%; font: var(--text-body-sm); }
.gd-table th {
  text-align: left; font: 800 11px/1.4 var(--font-body); letter-spacing: .07em; text-transform: uppercase;
  color: var(--tx); background: #F7F9FD; padding: 12px 14px; border-bottom: 2px solid var(--line); white-space: nowrap;
}
.gd-table td { padding: 12px 14px; border-bottom: 1px solid var(--line); color: var(--tx); vertical-align: top; }
.gd-table tr:last-child td { border-bottom: none; }
.gd-table td:first-child { color: var(--ink); font-weight: 700; white-space: nowrap; }
.gd-num { font-variant-numeric: tabular-nums; white-space: nowrap; }

.gd-faq { margin-top: 10px; }
.gd-faq details { border: 1px solid var(--line); border-radius: 12px; background: #fff; padding: 0; margin-bottom: 10px; }
.gd-faq summary {
  cursor: pointer; list-style: none; padding: 15px 18px; font: 700 16px/1.4 var(--font-body);
  color: var(--ink); display: flex; align-items: center; justify-content: space-between; gap: 12px;
}
.gd-faq summary::-webkit-details-marker { display: none; }
.gd-faq summary::after { content: "+"; font-size: 20px; color: var(--blue); line-height: 1; flex: 0 0 auto; }
.gd-faq details[open] summary::after { content: "\2013"; }
.gd-faq .gd-faq-a { padding: 0 18px 16px; }
.gd-faq .gd-faq-a p { margin: 0; }

/* Showcase panel: the course itself, laid out like the subject-hub feature row. */
.gd-showcase { margin-top: 44px; }
.gd-showcase > h2 { font-family: var(--font-display); font-weight: 800; font-size: 27px; color: var(--ink); margin: 0 0 6px; }
.gd-showcase > p { margin-bottom: 18px; }
.gd-cta { background: #fff; border: 1px solid var(--line); border-radius: 18px; padding: 26px 28px; box-shadow: 0 6px 18px rgba(12, 21, 56, .05); margin-top: 22px; text-align: left; }
.gd-cta h2 { font-family: var(--font-display); font-weight: 800; font-size: 21px; color: var(--ink); margin: 0 0 10px; }
.gd-cta p { margin: 0 0 18px; }
.gd-cta-row { display: flex; flex-wrap: wrap; gap: 12px; justify-content: flex-start; }
.gd-cta .pc-buy { flex: 0 0 auto; padding: 13px 26px; color: #fff; }
.gd-cta .gd-ghost, .gd-cta .gd-ghost:hover { background: #fff; color: var(--nav); border: 1.5px solid var(--line); }

.gd-note { font: var(--text-body-sm); color: var(--tx); border-top: 1px solid var(--line); margin-top: 40px; padding-top: 18px; max-width: var(--gd-measure); }

@media (max-width: 860px) {
  .gd-hero .wrap { padding: 26px 24px 30px; }
  .gd-h1 { font-size: 34px; }
  .gd-h2 { font-size: 24px; }
}
@media (max-width: 620px) {
  .gd-hero .wrap { padding: 22px 16px 26px; }
  .gd-h1 { font-size: 28px; }
  .gd-body { padding: 30px 0 60px; }
  .gd-cta { padding: 22px 18px; }
  .gd-cta .pc-buy { width: 100%; }
}