/* ────────────────────────────────────────────────────────────
   FAQ SECTION — accordion + filter + AI fallback
   ──────────────────────────────────────────────────────────── */

/* Toolbar */
.faq-toolbar {
  margin-top: 48px;
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 14px;
  align-items: center;
}
.faq-search {
  display: flex; align-items: center; gap: 10px;
  background: rgba(20, 20, 20, 0.6);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 0 16px;
  transition: border-color .25s, box-shadow .25s;
  position: relative;
}
.faq-search:focus-within {
  border-color: rgba(0, 242, 254, 0.5);
  box-shadow: 0 0 0 4px rgba(0, 242, 254, 0.06);
}
.faq-search svg { color: var(--muted); flex-shrink: 0; }
.faq-search input {
  flex: 1; background: transparent; border: none;
  color: var(--ink);
  font-family: var(--sans);
  font-size: 15px; padding: 14px 0;
}
.faq-search input::placeholder { color: var(--muted); }
.faq-search input:focus { outline: none; }
.faq-clear {
  background: transparent; border: none;
  color: var(--muted);
  font-size: 22px; line-height: 1;
  padding: 4px 6px;
  transition: color .2s;
}
.faq-clear:hover { color: var(--ink); }

.faq-filters {
  display: flex; gap: 6px; flex-wrap: wrap;
  justify-content: flex-end;
}
.faq-chip {
  background: rgba(20, 20, 20, 0.6);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 8px 14px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  transition: all .2s cubic-bezier(.2,.8,.2,1);
}
.faq-chip:hover {
  border-color: var(--accent-dim);
  color: var(--ink);
}
.faq-chip.active {
  background: var(--accent);
  color: var(--bg);
  border-color: var(--accent);
}

/* Accordion list */
.faq-list {
  margin-top: 28px;
  display: flex; flex-direction: column;
  gap: 6px;
  border-top: 1px solid var(--line);
}
.faq-item {
  border-bottom: 1px solid var(--line);
  transition: background .3s ease;
  position: relative;
}
.faq-item.open {
  background: linear-gradient(180deg, rgba(0, 242, 254, 0.03), transparent);
}
.faq-item.open::before {
  content: "";
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--accent), transparent);
  animation: faqAccentIn 0.5s cubic-bezier(.2,.8,.2,1);
}
@keyframes faqAccentIn {
  from { transform: scaleY(0); transform-origin: top; }
  to   { transform: scaleY(1); }
}

.faq-q {
  width: 100%;
  display: grid;
  grid-template-columns: 56px 1fr auto auto;
  gap: 16px;
  align-items: center;
  padding: 24px 24px 24px 20px;
  background: transparent;
  border: none;
  color: var(--ink);
  text-align: left;
  transition: padding-left .3s cubic-bezier(.2,.8,.2,1);
}
.faq-item.open .faq-q { padding-left: 28px; }
.faq-q:hover { color: var(--accent); }
.faq-num {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--muted);
  transition: color .25s;
}
.faq-item.open .faq-num,
.faq-q:hover .faq-num { color: var(--accent); }
.faq-q-text {
  font-family: var(--serif);
  font-size: clamp(20px, 1.8vw, 26px);
  line-height: 1.25;
  letter-spacing: -0.015em;
  font-weight: 400;
}
.faq-cat-tag {
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  padding: 4px 9px;
  border: 1px solid var(--line);
  border-radius: 99px;
}
.faq-item.open .faq-cat-tag {
  border-color: var(--accent-dim);
  color: var(--accent);
  background: rgba(0, 242, 254, 0.04);
}
.faq-chev {
  width: 36px; height: 36px;
  display: grid; place-items: center;
  border-radius: 50%;
  border: 1px solid var(--line);
  color: var(--ink);
  transition: all .35s cubic-bezier(.2,.8,.2,1);
}
.faq-item.open .faq-chev {
  border-color: var(--accent);
  background: var(--accent);
  color: var(--bg);
  transform: rotate(180deg);
}

.faq-a-wrap {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows .45s cubic-bezier(.2,.8,.2,1);
}
.faq-item.open .faq-a-wrap { grid-template-rows: 1fr; }
.faq-a {
  overflow: hidden;
}
.faq-item.open .faq-a {
  padding: 0 24px 28px 92px;
}
.faq-a {
  padding: 0 24px 0 92px;
  font-size: 15.5px;
  line-height: 1.6;
  color: var(--muted);
  max-width: 76ch;
  transition: padding .25s;
}
.faq-item.open .faq-a {
  animation: faqAnswerIn 0.5s cubic-bezier(.2,.8,.2,1) 0.1s both;
}
@keyframes faqAnswerIn {
  from { opacity: 0; transform: translateY(-6px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* Empty state */
.faq-empty {
  padding: 64px 32px;
  text-align: center;
  border-bottom: 1px solid var(--line);
}
.faq-empty-i {
  font-family: var(--serif);
  font-size: 72px;
  line-height: 1;
  color: var(--accent);
  opacity: 0.4;
  margin-bottom: 16px;
}
.faq-empty h4 {
  font-family: var(--serif);
  font-size: 28px; line-height: 1.1;
  margin: 0 0 12px;
}
.faq-empty p {
  color: var(--muted); margin: 0 0 24px;
}
.faq-empty-cta {
  background: var(--accent); color: var(--bg);
  border: none; padding: 14px 24px;
  border-radius: 999px;
  font-size: 14px; font-weight: 500;
  display: inline-flex; align-items: center; gap: 10px;
  letter-spacing: -0.01em;
}

/* AI fallback CTA */
.faq-ai-cta {
  margin-top: 48px;
  padding: 28px 32px;
  border: 1px solid var(--accent-dim);
  border-radius: 22px;
  background:
    radial-gradient(ellipse 70% 80% at 0% 50%, rgba(0,242,254,0.08), transparent 60%),
    var(--bg-elev);
  display: flex; justify-content: space-between; align-items: center;
  gap: 24px;
  position: relative;
  overflow: hidden;
}
.faq-ai-cta::before {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: 23px;
  padding: 1px;
  background: conic-gradient(
    from 0deg,
    transparent 0%,
    rgba(0,242,254,0.35) 20%,
    transparent 45%,
    transparent 60%,
    rgba(0,242,254,0.25) 80%,
    transparent 100%
  );
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude;
  pointer-events: none;
  animation: faqAiBorder 12s linear infinite;
}
@keyframes faqAiBorder { to { transform: rotate(360deg); } }

.faq-ai-l { flex: 1; }
.faq-ai-l h4 {
  font-family: var(--serif);
  font-size: clamp(22px, 2vw, 28px);
  line-height: 1.2;
  letter-spacing: -0.015em;
  margin: 8px 0 0; font-weight: 400;
  max-width: 36ch;
}
.faq-ai-btn {
  background: var(--accent); color: var(--bg);
  border: none;
  padding: 18px 24px 18px 18px;
  border-radius: 999px;
  display: inline-flex; align-items: center; gap: 14px;
  font-size: 15px; font-weight: 500;
  letter-spacing: -0.01em;
  transition: transform .25s cubic-bezier(.2,.8,.2,1);
  flex-shrink: 0;
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,0.3),
    0 4px 18px rgba(0,242,254,0.3);
}
.faq-ai-btn:hover { transform: translateY(-2px); box-shadow: 0 6px 24px rgba(0,242,254,0.45), inset 0 1px 0 rgba(255,255,255,0.4); }
.faq-ai-orb {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: #050505;
  display: grid; place-items: center;
  color: var(--accent);
}
.faq-ai-arr { font-size: 18px; }

/* Mobile */
@media (max-width: 768px) {
  .faq-toolbar { grid-template-columns: 1fr; }
  .faq-filters { justify-content: flex-start; }
  .faq-q {
    grid-template-columns: 36px 1fr 30px;
    gap: 12px;
    padding: 18px 16px;
  }
  .faq-cat-tag { display: none; }
  .faq-num { font-size: 10px; }
  .faq-q-text { font-size: 17px; }
  .faq-chev { width: 30px; height: 30px; }
  .faq-a { padding: 0 16px 0 60px; font-size: 14px; }
  .faq-item.open .faq-a { padding: 0 16px 22px 60px; }
  .faq-ai-cta { flex-direction: column; align-items: flex-start; padding: 24px; gap: 16px; }
  .faq-ai-btn { width: 100%; justify-content: center; }
}