.ecar-faq {
  background-color: var(--ecar-bg);
  border-top: 1px solid var(--ecar-border);
  padding-block: var(--sp-section-lg);
}

.ecar-faq__inner {
  display: grid;
  grid-template-columns: minmax(260px, 360px) minmax(0, 1fr);
  gap: 88px;
  align-items: start;
}

.ecar-faq__intro {
  min-width: 0;
}

.ecar-faq__intro-sticky {
  position: sticky;
  top: 112px;
}

.ecar-faq__eyebrow {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin: 0 0 18px;
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ecar-gold);
}

.ecar-faq__count {
  color: var(--ecar-accent);
}

.ecar-faq__title {
  max-width: 330px;
  margin: 0;
  font-size: var(--fs-h2-lg);
  line-height: 1.0;
  letter-spacing: -0.04em;
}

.ecar-faq__description {
  max-width: 330px;
  margin: 24px 0 0;
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  line-height: 1.65;
  color: var(--ecar-text-secondary);
}

.ecar-faq__cta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: 34px;
  padding-bottom: 5px;
  border-bottom: 1px solid var(--ecar-border);
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.035em;
  text-transform: uppercase;
  color: var(--ecar-text-primary);
  transition: border-color 180ms ease, color 180ms ease;
}

.ecar-faq__cta svg {
  width: 16px;
  height: 16px;
  transition: transform 180ms ease;
}

.ecar-faq__cta:hover,
.ecar-faq__cta:focus-visible {
  color: var(--ecar-accent-strong);
  border-color: var(--ecar-accent);
}

.ecar-faq__cta:hover svg,
.ecar-faq__cta:focus-visible svg {
  transform: translateX(3px);
}

.ecar-faq__list {
  border-top: 1px solid var(--ecar-border);
}

.ecar-faq__item {
  position: relative;
  border-bottom: 1px solid var(--ecar-border);
  transition: background-color 180ms ease;
}

/* The open row used to grow a 2px accent bar down its left edge. Removed:
   an item that is open already says so three times over — the panel steps up
   to the darker band, the question turns white, and the +/- mark flips to a
   minus. A fourth indicator, and specifically a coloured rail on the leading
   edge, is decoration pretending to be information. */

.ecar-faq__item[open] {
  background-color: var(--ecar-bg-secondary);
}

.ecar-faq__question {
  list-style: none;
  display: grid;
  grid-template-columns: 54px minmax(0, 1fr) 24px;
  gap: 20px;
  align-items: center;
  min-height: 90px;
  padding: 24px 24px 24px 20px;
  cursor: pointer;
  user-select: none;
}

.ecar-faq__question::-webkit-details-marker {
  display: none;
}

.ecar-faq__index {
  align-self: start;
  padding-top: 4px;
  font-family: var(--font-sans);
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--ecar-text-muted);
  transition: color 180ms ease;
}

.ecar-faq__question-text {
  max-width: 720px;
  font-family: var(--font-heading);
  font-size: clamp(1.0625rem, 1.5vw, 1.3125rem);
  font-weight: 650;
  line-height: 1.3;
  letter-spacing: -0.015em;
  color: var(--ecar-text-primary);
  transition: color 180ms ease;
}

.ecar-faq__toggle {
  position: relative;
  width: 20px;
  height: 20px;
  justify-self: end;
  color: var(--ecar-text-secondary);
}

.ecar-faq__toggle::before,
.ecar-faq__toggle::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 16px;
  height: 1px;
  background-color: currentColor;
  transform: translate(-50%, -50%);
  transition: transform 180ms ease, opacity 180ms ease, color 180ms ease;
}

.ecar-faq__toggle::after {
  transform: translate(-50%, -50%) rotate(90deg);
}

.ecar-faq__item[open] .ecar-faq__toggle {
  color: var(--ecar-accent);
}

.ecar-faq__item[open] .ecar-faq__toggle::after {
  opacity: 0;
  transform: translate(-50%, -50%) rotate(0deg);
}

.ecar-faq__item[open] .ecar-faq__index {
  color: var(--ecar-accent);
}

.ecar-faq__question:hover .ecar-faq__question-text,
.ecar-faq__question:focus-visible .ecar-faq__question-text {
  color: var(--ecar-accent-strong);
}

.ecar-faq__question:hover .ecar-faq__toggle,
.ecar-faq__question:focus-visible .ecar-faq__toggle {
  color: var(--ecar-text-primary);
}

.ecar-faq__answer-wrap {
  display: grid;
  grid-template-columns: 54px minmax(0, 1fr) 24px;
  gap: 20px;
  padding: 0 24px 30px 20px;
}

.ecar-faq__answer {
  grid-column: 2;
  max-width: 720px;
  margin: 0;
  padding-top: 2px;
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  line-height: 1.72;
  color: var(--ecar-text-secondary);
}

@media (max-width: 1439px) {
  .ecar-faq__inner {
    gap: 64px;
  }
}

@media (max-width: 1199px) {
  .ecar-faq__inner {
    grid-template-columns: minmax(240px, 300px) minmax(0, 1fr);
    gap: 48px;
  }

  .ecar-faq__intro-sticky {
    top: 96px;
  }

  .ecar-faq__question {
    grid-template-columns: 44px minmax(0, 1fr) 22px;
    gap: 16px;
    min-height: 82px;
    padding: 22px 18px 22px 16px;
  }

  .ecar-faq__answer-wrap {
    grid-template-columns: 44px minmax(0, 1fr) 22px;
    gap: 16px;
    padding: 0 18px 28px 16px;
  }
}

@media (max-width: 1023px) {
  .ecar-faq__inner {
    grid-template-columns: 1fr;
    gap: 44px;
  }

  .ecar-faq__intro-sticky {
    position: static;
  }

  .ecar-faq__title,
  .ecar-faq__description {
    max-width: 620px;
  }

}

@media (max-width: 767px) {
  .ecar-faq__inner {
    gap: 34px;
  }

  .ecar-faq__description {
    margin-top: 20px;
  }

  .ecar-faq__cta {
    margin-top: 28px;
  }

  .ecar-faq__question {
    grid-template-columns: 34px minmax(0, 1fr) 20px;
    gap: 10px;
    min-height: 76px;
    padding: 20px 10px 20px 12px;
  }

  .ecar-faq__index {
    padding-top: 3px;
  }

  .ecar-faq__question-text {
    font-size: 1.0625rem;
    line-height: 1.35;
  }

  .ecar-faq__answer-wrap {
    grid-template-columns: 34px minmax(0, 1fr) 20px;
    gap: 10px;
    padding: 0 10px 24px 12px;
  }

  .ecar-faq__answer {
    font-size: 0.9rem;
    line-height: 1.68;
  }
}

/* --- Accordion motion ---
 * <details> cannot be height-animated in CSS by default, which is why the old
 * version simply snapped open. Where the browser supports interpolate-size and
 * ::details-content it now eases open in 260ms; everywhere else it falls back
 * to the same instant toggle as before. No JS, and the accordion keeps native
 * <details>/<summary> semantics and keyboard behaviour either way.
 */
@supports (interpolate-size: allow-keywords) {
  :root {
    interpolate-size: allow-keywords;
  }

  .ecar-faq__item::details-content {
    height: 0;
    overflow: hidden;
    opacity: 0;
    transition: height var(--dur-slow) var(--ease), content-visibility var(--dur-slow) allow-discrete,
                opacity var(--dur) var(--ease);
  }

  .ecar-faq__item[open]::details-content {
    height: auto;
    opacity: 1;
  }
}

@media (prefers-reduced-motion: reduce) {
  .ecar-faq__item::details-content,
  .ecar-faq__item[open]::details-content {
    transition: none;
  }

  .ecar-faq__item::before,
  .ecar-faq__toggle::before,
  .ecar-faq__toggle::after,
  .ecar-faq__cta svg {
    transition: none;
  }
}