/* ============================================================
   APEX DETAILING — faq.css
   Seite 2 / Sektion 4: FAQ "Accordion Classic" (F1)
   Native <details>/<summary> — Zero JS, A11y eingebaut
   ============================================================ */

.faq {
  position: relative;
  padding: clamp(2rem, 5vw, 4rem) var(--container-pad) clamp(4rem, 8vw, 7rem);
  background:
    radial-gradient(ellipse 50% 30% at 50% 100%, rgba(30,144,255,0.06), transparent 70%),
    var(--color-bg-deep);
}

.faq__inner {
  max-width: 880px;
  margin: 0 auto;
}

/* ---------- HEADER ---------- */
.faq__header {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  margin-bottom: clamp(2rem, 4vw, 3rem);
}

.faq__eyebrow {
  margin: 0;
  font-family: var(--font-display);
  font-size: var(--fs-eyebrow);
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-accent-soft);
}

.faq__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.85rem, 1.3rem + 2.4vw, 3.25rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--color-text-primary);
  text-wrap: balance;
}

.faq__lead {
  margin: 0;
  font-size: var(--fs-sub);
  line-height: 1.65;
  color: var(--color-text-muted);
  max-width: 56ch;
}

/* ---------- LIST ---------- */
.faq__list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

/* ---------- ITEM ---------- */
.faq-item {
  position: relative;
  border-radius: var(--radius-md);
  background: var(--color-bg-glass);
  -webkit-backdrop-filter: blur(var(--blur-glass));
  backdrop-filter: blur(var(--blur-glass));
  border: var(--border-glass);
  overflow: hidden;
  transition:
    border-color var(--duration-med) var(--ease-out),
    background var(--duration-med) var(--ease-out),
    box-shadow var(--duration-med) var(--ease-out);
}

.faq-item[open] {
  border-color: rgba(30,144,255,0.32);
  background: rgba(20,22,28,0.7);
  box-shadow: 0 20px 40px -20px rgba(30,144,255,0.25);
}

.faq-item:hover { border-color: rgba(255,255,255,0.14); }

/* ---------- SUMMARY (Frage) ---------- */
.faq-item__summary {
  position: relative;
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.1rem 1.35rem;
  cursor: pointer;
  font-family: var(--font-display);
  font-size: clamp(0.98rem, 0.9rem + 0.3vw, 1.1rem);
  font-weight: 600;
  letter-spacing: -0.005em;
  color: var(--color-text-primary);
  list-style: none;
  user-select: none;
  -webkit-user-select: none;
  transition: color var(--duration-fast) var(--ease-smooth);
}

/* Native marker entfernen */
.faq-item__summary::-webkit-details-marker { display: none; }
.faq-item__summary::marker { content: ''; }

.faq-item__summary:hover { color: var(--color-accent-soft); }

/* Indikator (Plus → Minus) */
.faq-item__icon {
  position: relative;
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(30,144,255,0.08);
  border: 1px solid rgba(30,144,255,0.3);
  display: grid;
  place-items: center;
  transition:
    background var(--duration-fast) var(--ease-smooth),
    border-color var(--duration-fast) var(--ease-smooth),
    transform var(--duration-med) var(--ease-out),
    box-shadow var(--duration-med) var(--ease-out);
}

.faq-item__icon::before,
.faq-item__icon::after {
  content: '';
  position: absolute;
  background: var(--color-accent-soft);
  border-radius: 1px;
  transition: transform var(--duration-med) var(--ease-out), background var(--duration-fast) var(--ease-smooth);
}

.faq-item__icon::before {
  width: 12px;
  height: 2px;
}

.faq-item__icon::after {
  width: 2px;
  height: 12px;
}

.faq-item[open] .faq-item__icon {
  background: var(--color-accent);
  border-color: var(--color-accent);
  box-shadow: 0 0 16px var(--color-accent-glow);
  transform: rotate(45deg);
}

.faq-item[open] .faq-item__icon::before,
.faq-item[open] .faq-item__icon::after {
  background: #08090C;
}

.faq-item__question {
  flex-grow: 1;
  min-width: 0;
}

/* Hover/Focus auf gesamte Zeile */
.faq-item__summary:focus-visible {
  outline: 2px solid var(--color-accent-soft);
  outline-offset: -2px;
  border-radius: var(--radius-md);
}

/* ---------- ANSWER ---------- */
.faq-item__answer {
  padding: 0 1.35rem 1.25rem;
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--color-text-chrome);
  max-width: 68ch;
}

.faq-item__answer > * + * { margin-top: 0.65rem; }

.faq-item__answer strong { color: var(--color-text-primary); }

.faq-item__answer ul {
  margin: 0.5rem 0 0;
  padding-left: 1.2rem;
  list-style: none;
}
.faq-item__answer ul li {
  position: relative;
  padding-left: 1rem;
  margin-bottom: 0.25rem;
}
.faq-item__answer ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-accent-soft);
  box-shadow: 0 0 6px var(--color-accent-glow);
}

/* ---------- REVEAL ---------- */
.faq-item {
  opacity: 0;
  transform: translateY(14px);
  transition:
    opacity var(--duration-slow) var(--ease-out),
    transform var(--duration-slow) var(--ease-out),
    border-color var(--duration-med) var(--ease-out),
    background var(--duration-med) var(--ease-out),
    box-shadow var(--duration-med) var(--ease-out);
}
.faq.is-visible .faq-item { opacity: 1; transform: translateY(0); }
.faq.is-visible .faq-item:nth-child(1) { transition-delay:  60ms; }
.faq.is-visible .faq-item:nth-child(2) { transition-delay: 120ms; }
.faq.is-visible .faq-item:nth-child(3) { transition-delay: 180ms; }
.faq.is-visible .faq-item:nth-child(4) { transition-delay: 240ms; }
.faq.is-visible .faq-item:nth-child(5) { transition-delay: 300ms; }
.faq.is-visible .faq-item:nth-child(6) { transition-delay: 360ms; }
.faq.is-visible .faq-item:nth-child(7) { transition-delay: 420ms; }

@media (prefers-reduced-motion: reduce) {
  .faq-item,
  .faq-item__icon,
  .faq-item__icon::before,
  .faq-item__icon::after { transition: none; }
  .faq-item { opacity: 1; transform: none; }
}