/* ============================================================
   Tektome — FAQ page (faq.html).
   Reuses news.css for the hero band + CTA. Layout: a sticky
   category rail on the left, accordion question groups on the
   right. Light mode only, flat surfaces, brand tokens.
   ============================================================ */

.faq-body {
  background: var(--bg-page);
  padding: 64px 0 88px;
  font-family: var(--font-sans);
  color: var(--fg-primary);
}
.faq-body__inner {
  max-width: var(--site-width, 1300px);
  margin: 0 auto;
  padding: 0 40px;
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  gap: 64px;
  align-items: start;
}

/* ---- Category rail ---- */
.faq-rail {
  position: sticky;
  top: 96px;
}
.faq-rail__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-arch-purple);
  margin: 0 0 18px;
}
.faq-rail__list {
  list-style: none;
  margin: 0 0 28px;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.faq-rail__link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 10px 14px;
  border-radius: var(--radius-md);
  text-decoration: none;
  font-size: 14px;
  font-weight: var(--fw-medium);
  color: var(--fg-secondary);
  transition: background var(--duration-fast) var(--ease-out), color var(--duration-fast) var(--ease-out);
}
.faq-rail__link:hover { background: var(--gray-100); color: var(--fg-primary); }
.faq-rail__link.is-active { background: var(--purple-50); color: var(--color-arch-purple); }
.faq-rail__count {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--fg-tertiary);
}
.faq-rail__link.is-active .faq-rail__count { color: var(--color-arch-purple); }

.faq-rail__help {
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  background: var(--bg-surface);
  padding: 20px;
}
.faq-rail__help-title {
  font-size: 14px;
  font-weight: var(--fw-semibold);
  color: var(--fg-primary);
  margin: 0 0 6px;
}
.faq-rail__help-text {
  font-size: 13px;
  line-height: 1.5;
  color: var(--fg-secondary);
  margin: 0 0 14px;
}
.faq-rail__help-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 13px;
  font-weight: var(--fw-semibold);
  color: var(--color-arch-purple);
  text-decoration: none;
}
.faq-rail__help-link svg { width: 13px; height: 13px; transition: transform var(--duration-fast) var(--ease-out); }
.faq-rail__help-link:hover svg { transform: translateX(3px); }

/* ---- Question groups ---- */
.faq-groups {
  display: flex;
  flex-direction: column;
  gap: 56px;
}
.faq-group__head {
  margin-bottom: 18px;
}
.faq-group__title {
  font-family: var(--font-display);
  font-weight: var(--fw-light);
  font-size: 30px;
  line-height: 1.15;
  letter-spacing: -0.015em;
  color: var(--color-data-black);
  margin: 0 0 6px;
}
.faq-group__sub {
  font-size: 14px;
  line-height: 1.55;
  color: var(--fg-secondary);
  margin: 0;
}

.faq-list {
  border-top: 1px solid var(--gray-200);
}

/* ---- Accordion item ---- */
.faq-item {
  border-bottom: 1px solid var(--gray-200);
}
.faq-item__q {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
  padding: 22px 4px;
  font-family: var(--font-sans);
  font-size: 17px;
  font-weight: var(--fw-semibold);
  line-height: 1.4;
  color: var(--fg-primary);
  transition: color var(--duration-fast) var(--ease-out);
}
.faq-item__q::-webkit-details-marker { display: none; }
.faq-item__q:hover { color: var(--color-arch-purple); }
.faq-item__icon {
  flex: 0 0 auto;
  width: 22px;
  height: 22px;
  margin-top: 1px;
  position: relative;
}
.faq-item__icon::before,
.faq-item__icon::after {
  content: "";
  position: absolute;
  background: var(--color-arch-purple);
  border-radius: 2px;
  transition: transform var(--duration-base) var(--ease-out), opacity var(--duration-base) var(--ease-out);
}
.faq-item__icon::before { top: 10px; left: 3px; right: 3px; height: 2px; }
.faq-item__icon::after { left: 10px; top: 3px; bottom: 3px; width: 2px; }
.faq-item[open] .faq-item__icon::after { transform: scaleY(0); opacity: 0; }

.faq-item__a {
  padding: 0 48px 24px 4px;
  font-size: 15px;
  line-height: 1.65;
  color: var(--fg-secondary);
  text-wrap: pretty;
}
.faq-item__a p { margin: 0 0 12px; }
.faq-item__a p:last-child { margin: 0; }
.faq-item__a a { color: var(--color-arch-purple); font-weight: var(--fw-medium); text-decoration: none; }
.faq-item__a a:hover { text-decoration: underline; }

/* ---- Responsive ---- */
@media (max-width: 920px) {
  .faq-body__inner { grid-template-columns: minmax(0, 1fr); gap: 40px; }
  .faq-rail { position: static; }
  .faq-rail__list { flex-direction: row; flex-wrap: wrap; gap: 8px; margin-bottom: 20px; }
  .faq-rail__link { border: 1px solid var(--border-subtle); }
  .faq-rail__help { display: none; }
}
@media (max-width: 600px) {
  .faq-body { padding: 48px 0 64px; }
  .faq-body__inner { padding: 0 24px; }
  .faq-group__title { font-size: 26px; }
  .faq-item__q { font-size: 16px; }
}