/* ==========================================================================
   Section: FAQ (#faq)
   Sticky left rail (heading + contact panel) against a right column of eight
   accordion rows. Rows are hairline-separated until one opens, at which point
   it lifts onto a raised surface with a brand keyline. Panel height is
   animated inline by KW.accordion — this file never sets height or overflow
   on [data-accordion-panel].
   Every selector is scoped under .s-faq.
   ========================================================================== */

.s-faq {
  --rail-w: 22rem;
  --row-pad-i: var(--space-4);
  --row-pad-b: var(--space-5);
  --icon-size: 1.5rem;
  overflow: clip;              /* the orb stays inside the band */
}

/* ---- Decorative light ---------------------------------------------------- */

.s-faq__orb {
  --orb-size: 40rem;
  --orb-opacity: 0.16;
  --orb-blur: 90px;
  inset-block-start: -14rem;
  inset-inline-start: -16rem;
}

@media (width >= 64rem) {
  .s-faq__orb {
    --orb-opacity: 0.2;
    inset-block-start: -18rem;
    inset-inline-start: -12rem;
  }
}

/* ---- Layout -------------------------------------------------------------- */

.s-faq__layout {
  display: grid;
  gap: var(--space-9);
  align-items: start;
}

@media (width >= 64rem) {
  .s-faq__layout {
    grid-template-columns: minmax(0, var(--rail-w)) minmax(0, 1fr);
    gap: var(--space-10);
  }
}

@media (width >= 90rem) {
  .s-faq {
    --rail-w: 25rem;
    --row-pad-i: var(--space-6);
  }
  .s-faq__layout { gap: var(--space-12); }
}

/* ---- Sticky rail --------------------------------------------------------- */

.s-faq__rail { min-width: 0; }

.s-faq__rail-inner {
  display: flex;
  flex-direction: column;
  align-items: start;
  gap: var(--space-5);
}

@media (width >= 64rem) {
  .s-faq__rail-inner {
    position: sticky;
    inset-block-start: calc(var(--header-h) + var(--space-8));
  }
}

.s-faq__title {
  font-size: var(--step-5);
  letter-spacing: var(--tracking-tight);
  max-width: 14ch;
}

@media (width >= 90rem) {
  .s-faq__title { font-size: var(--step-6); }
}

.s-faq__lede {
  font-size: var(--step-1);
  line-height: var(--leading-body);
  max-width: 42ch;
}

/* ---- Contact panel ------------------------------------------------------- */

.s-faq__contact {
  position: relative;
  width: 100%;
  max-width: 30rem;
  margin-block-start: var(--space-2);
  padding: var(--space-6);
  border-radius: var(--radius-lg);
  background-color: var(--surface-raised);
  box-shadow: inset 0 0 0 1px var(--border), var(--shadow-sm);
}

.s-faq__contact-glyph {
  display: grid;
  place-items: center;
  width: 2.25rem;
  height: 2.25rem;
  margin-block-end: var(--space-4);
  border-radius: var(--radius-md);
  background-color: var(--brand-tint);
  color: var(--brand-hover);
}

.s-faq__contact-glyph svg { width: 1.125rem; height: 1.125rem; }

.s-faq__contact-title {
  color: var(--ink);
  font-size: var(--step-1);
  font-weight: var(--weight-medium);
  line-height: var(--leading-snug);
  letter-spacing: var(--tracking-snug);
}

.s-faq__contact-body {
  margin-block-start: var(--space-2);
  color: var(--ink-muted);
  font-size: var(--step-0);
  line-height: var(--leading-body);
  max-width: 34ch;
}

.s-faq__contact-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-3) var(--space-6);
  margin-block-start: var(--space-5);
  max-width: none;
}

.s-faq__contact-link { font-size: var(--step-0); }

.s-faq__contact-alt {
  color: var(--ink-muted);
  font-size: var(--step-0);
  font-weight: var(--weight-medium);
  text-decoration-color: color-mix(in oklab, currentColor 30%, transparent);
}

.s-faq__contact-alt:hover,
.s-faq__contact-alt:focus-visible { color: var(--ink); }

/* ---- Accordion list ------------------------------------------------------ */

.s-faq__list { min-width: 0; }

.s-faq__item {
  position: relative;
  border-radius: var(--radius-lg);
  background-color: transparent;
  transition:
    background-color var(--dur-3) var(--ease-standard),
    box-shadow var(--dur-3) var(--ease-out-quart);
}

/* hairline rule between rows, dissolved around the active row */
.s-faq__item + .s-faq__item::before {
  content: "";
  position: absolute;
  inset-block-start: 0;
  inset-inline: var(--row-pad-i);
  height: 1px;
  background-color: var(--border);
  opacity: 1;
  transition: opacity var(--dur-2) var(--ease-standard);
}

.s-faq__item:hover::before,
.s-faq__item.is-open::before,
.s-faq__item:focus-within::before,
.s-faq__item.is-open + .s-faq__item::before,
.s-faq__item:hover + .s-faq__item::before,
.s-faq__item:focus-within + .s-faq__item::before { opacity: 0; }

/* brand keyline on the open row */
.s-faq__item::after {
  content: "";
  position: absolute;
  inset-block: var(--space-5);
  inset-inline-start: 0;
  width: 3px;
  border-radius: var(--radius-pill);
  background-color: var(--brand);
  scale: 1 0;
  transform-origin: 50% 0;
  opacity: 0;
  transition:
    scale var(--dur-4) var(--ease-out-quart),
    opacity var(--dur-2) var(--ease-standard);
}

.s-faq__item.is-open {
  background-color: var(--surface-raised);
  box-shadow: inset 0 0 0 1px var(--border), var(--shadow-md);
}

.s-faq__item.is-open::after { scale: 1 1; opacity: 1; }

.s-faq__item:not(.is-open):hover {
  background-color: color-mix(in oklab, var(--ink) 4%, transparent);
}

/* ---- Trigger ------------------------------------------------------------- */

.s-faq__q {
  font-size: inherit;
  font-weight: inherit;
  line-height: inherit;
  letter-spacing: inherit;
}

.s-faq__trigger {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: start;
  gap: var(--space-3) var(--space-4);
  width: 100%;
  min-height: 3.5rem;
  padding: var(--row-pad-b) var(--row-pad-i);
  border-radius: var(--radius-lg);
  color: var(--ink);
  text-align: start;
  cursor: pointer;
}

.s-faq__trigger:focus-visible {
  outline: 2px solid var(--ring);
  outline-offset: -2px;
  border-radius: var(--radius-lg);
}

.s-faq__num {
  width: 1.75rem;              /* keeps the answer indent below in step */
  padding-block-start: 0.28em;
  color: var(--ink-subtle);
  font-family: var(--font-mono);
  font-size: var(--step--2);
  font-variant-numeric: tabular-nums;
  letter-spacing: var(--tracking-wide);
  line-height: 1;
  transition: color var(--dur-2) var(--ease-standard);
}

.s-faq__item.is-open .s-faq__num { color: var(--brand); }

.s-faq__label {
  font-size: var(--step-2);
  font-weight: var(--weight-medium);
  line-height: var(--leading-snug);
  letter-spacing: var(--tracking-snug);
  text-wrap: pretty;
  transition: color var(--dur-2) var(--ease-standard);
}

.s-faq__trigger:hover .s-faq__label { color: var(--ink); }

/* plus → minus */
.s-faq__icon {
  position: relative;
  width: var(--icon-size);
  height: var(--icon-size);
  margin-block-start: 0.1em;
  flex: none;
  border-radius: var(--radius-pill);
  box-shadow: inset 0 0 0 1px var(--border-strong);
  color: var(--ink-muted);
  transition:
    background-color var(--dur-3) var(--ease-standard),
    box-shadow var(--dur-3) var(--ease-standard),
    color var(--dur-3) var(--ease-standard),
    rotate var(--dur-4) var(--ease-out-quart);
}

.s-faq__icon::before,
.s-faq__icon::after {
  content: "";
  position: absolute;
  inset-block-start: 50%;
  inset-inline-start: 50%;
  width: 0.625rem;
  height: 1.5px;
  border-radius: var(--radius-pill);
  background-color: currentColor;
  translate: -50% -50%;
  transition: scale var(--dur-3) var(--ease-out-quart);
}

.s-faq__icon::after { rotate: 90deg; }

.s-faq__trigger:hover .s-faq__icon {
  color: var(--ink);
  box-shadow: inset 0 0 0 1px var(--ink);
}

.s-faq__trigger:active .s-faq__icon { scale: 0.92; }

.s-faq__item.is-open .s-faq__icon {
  rotate: 180deg;
  background-color: var(--brand);
  box-shadow: inset 0 0 0 1px var(--brand);
  color: var(--ink-on-brand);
}

.s-faq__item.is-open .s-faq__icon::after { scale: 0 1; }

/* ---- Panel --------------------------------------------------------------- */
/* No height / overflow here — KW.accordion owns both. */

.s-faq__answer {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  padding-block-end: var(--space-6);
  /* line the answer up under the question text, past the number column */
  padding-inline-start: calc(var(--row-pad-i) + 1.75rem + var(--space-4));
  padding-inline-end: var(--row-pad-i);
  color: var(--ink-muted);
  font-size: var(--step-0);
  line-height: var(--leading-body);
}

.s-faq__answer p { max-width: 58ch; }

/* clear the icon column once there's room for it */
@media (width >= 30rem) {
  .s-faq__answer {
    padding-inline-end: calc(var(--row-pad-i) + var(--icon-size) + var(--space-4));
  }
}

.s-faq__answer .link-arrow { font-size: var(--step-0); }

/* ---- Motion / display fallbacks ------------------------------------------ */

@media (prefers-reduced-motion: reduce) {
  .s-faq__item,
  .s-faq__item::before,
  .s-faq__item::after,
  .s-faq__num,
  .s-faq__label,
  .s-faq__icon,
  .s-faq__icon::before,
  .s-faq__icon::after {
    transition: none;
  }

  .s-faq__item::after { scale: 1 1; }
  .s-faq__trigger:active .s-faq__icon { scale: 1; }
}

@media (forced-colors: active) {
  .s-faq__item.is-open,
  .s-faq__contact {
    border: 1px solid CanvasText;
  }
  .s-faq__icon {
    border: 1px solid CanvasText;
    forced-color-adjust: none;
  }
  .s-faq__icon::before,
  .s-faq__icon::after { background-color: CanvasText; }
}