/* ==========================================================================
   DISFRICAL — Preguntas frecuentes (acordeón SEO · FAQPage)
   ========================================================================== */
.faqx { position: relative; isolation: isolate; overflow: hidden; background: var(--bg); }
.faqx__glow { position: absolute; z-index: -1; inset: -20% -10% auto auto; width: 60%; aspect-ratio: 1; border-radius: 50%; background: radial-gradient(circle, color-mix(in srgb, var(--frost-500) 14%, transparent), transparent 65%); pointer-events: none; }
.faqx__glow::after { content: ""; position: absolute; left: -80%; top: 90%; width: 70%; aspect-ratio: 1; border-radius: 50%; background: radial-gradient(circle, color-mix(in srgb, var(--heat-500) 10%, transparent), transparent 65%); }
.faqx__grid { display: grid; gap: 40px; align-items: start; }
@media (min-width: 1040px) {
  .faqx__grid { grid-template-columns: 400px 1fr; gap: 64px; }
  .faqx__side { position: sticky; top: calc(var(--nav-h) + 40px); }
}
.faqx__side { display: grid; gap: 20px; }
.faqx__title { font-size: clamp(1.9rem, 1.3rem + 2.2vw, 2.8rem); line-height: 1.08; letter-spacing: -0.03em; }
.faqx__intro { color: var(--ink-2); font-size: var(--fs-lg); }

/* ---- Buscador ---- */
.faqx__search { position: relative; display: block; }
.faqx__search [data-icon] { position: absolute; left: 16px; top: 50%; width: 19px; height: 19px; transform: translateY(-50%); color: var(--ink-3); pointer-events: none; }
.faqx__search input {
  width: 100%; min-height: 54px; padding: 0 48px 0 46px; border-radius: var(--radius);
  border: 1px solid var(--line-2); background: var(--surface); box-shadow: var(--shadow-1);
  outline: 0; font-size: 0.95rem; transition: border-color 0.3s, box-shadow 0.3s;
}
.faqx__search input:focus { border-color: var(--accent); box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent) 15%, transparent), var(--shadow-1); }
.faqx__search kbd {
  position: absolute; right: 14px; top: 50%; transform: translateY(-50%);
  min-width: 24px; height: 24px; display: grid; place-items: center; border-radius: 6px;
  border: 1px solid var(--line-2); background: var(--surface-2);
  font-family: var(--font-mono); font-size: 0.75rem; color: var(--ink-3); transition: opacity 0.2s;
}
.faqx__search input:focus + kbd, .faqx__search input:not(:placeholder-shown) + kbd { opacity: 0; }

/* ---- Filtros ---- */
.faqx__filters { display: grid; gap: 6px; }
.faqx__filters button {
  display: flex; align-items: center; gap: 12px; width: 100%; padding: 12px 14px;
  border-radius: 12px; border: 1px solid transparent; text-align: left;
  font-weight: 600; font-size: 0.92rem; color: var(--ink-2);
  transition: background 0.25s, border-color 0.25s, color 0.25s, transform 0.35s var(--ease-out), box-shadow 0.3s;
}
.faqx__filters button [data-icon] { width: 20px; height: 20px; color: var(--ink-3); transition: color 0.25s; }
.faqx__filters button:hover { background: var(--surface); transform: translateX(3px); }
.faqx__filters button.is-active { background: var(--surface); border-color: var(--line); color: var(--ink); box-shadow: var(--shadow-1); }
.faqx__filters button.is-active [data-icon] { color: var(--accent); }
.faqx__count { margin-left: auto; min-width: 26px; height: 22px; padding: 0 8px; display: inline-grid; place-items: center; border-radius: 11px; font-family: var(--font-mono); font-size: 0.72rem; background: var(--bg-2); color: var(--ink-3); transition: background 0.25s, color 0.25s; }
.faqx__filters button.is-active .faqx__count { background: var(--accent); color: #fff; }
@media (max-width: 1039px) {
  .faqx__filters { display: flex; gap: 8px; overflow-x: auto; padding-bottom: 4px; scrollbar-width: none; }
  .faqx__filters::-webkit-scrollbar { display: none; }
  .faqx__filters button { width: auto; flex: none; white-space: nowrap; border-color: var(--line); background: var(--surface); }
}

/* ---- Tarjeta de ayuda ---- */
.faqx__help { position: relative; overflow: hidden; isolation: isolate; display: grid; gap: 10px; padding: 22px; border-radius: var(--radius-lg); background: var(--frost-950); color: #fff; }
.faqx__help::before { content: ""; position: absolute; z-index: -1; right: -40%; top: -60%; width: 90%; aspect-ratio: 1; border-radius: 50%; background: radial-gradient(circle, rgba(29, 116, 216, 0.5), transparent 65%); }
.faqx__help > p:not(.h3-like) { color: rgba(233, 241, 251, 0.75); font-size: 0.9rem; }
.faqx__avatars { display: flex; margin-bottom: 4px; }
.faqx__avatars > * { display: grid; place-items: center; width: 38px; height: 38px; border-radius: 50%; border: 2px solid var(--frost-950); font-weight: 700; font-size: 0.85rem; background: var(--grad-frost); color: #fff; }
.faqx__avatars > * + * { margin-left: -10px; }
.faqx__avatars > :nth-child(2) { background: var(--grad-heat); }
.faqx__avatars > :nth-child(3) { background: #fff; color: var(--frost-600); padding: 9px; }
.faqx__help-actions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 6px; }
.faqx__help-actions .btn [data-icon] { width: 16px; height: 16px; }
.faqx__wa { --btn-bg: #25d366; --btn-ink: #fff; --btn-line: transparent; }

/* ---- Grupos ---- */
.faqx__list { display: grid; gap: 40px; min-width: 0; }
.faqx__group { display: grid; gap: 12px; }
.faqx__group[hidden] { display: none; }
.faqx__group-title { display: flex; align-items: center; gap: 12px; font-size: 1.05rem; font-weight: 700; letter-spacing: -0.01em; margin-bottom: 6px; }
.faqx__group-icon { width: 36px !important; height: 36px !important; padding: 8px; border-radius: 10px; background: color-mix(in srgb, var(--accent) 12%, transparent); color: var(--accent); }
[data-faq-group="clima"] .faqx__group-icon { background: color-mix(in srgb, var(--eco-500) 14%, transparent); color: var(--eco-600); }
[data-faq-group="industria"] .faqx__group-icon { background: color-mix(in srgb, var(--heat-500) 12%, transparent); color: var(--heat); }

/* ---- Ítems ---- */
.faqx__item { position: relative; border-radius: var(--radius-lg); background: var(--surface); border: 1px solid var(--line); transition: border-color 0.4s, box-shadow 0.5s var(--ease-out); }
.faqx__item[hidden] { display: none; }
.faqx__item::before { content: ""; position: absolute; left: -1px; top: 18px; bottom: 18px; width: 3px; border-radius: 3px; background: var(--grad-thermal); transform: scaleY(0); transition: transform 0.5s var(--ease-out); }
.faqx__item:hover { border-color: color-mix(in srgb, var(--accent) 30%, transparent); }
.faqx__item.is-open { border-color: color-mix(in srgb, var(--accent) 35%, transparent); box-shadow: var(--shadow-2); }
.faqx__item.is-open::before { transform: scaleY(1); }
.faqx__item.is-flash { animation: faqFlash 1.8s var(--ease-out); }
@keyframes faqFlash { 0%, 40% { box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent) 35%, transparent), var(--shadow-2); } }

.faqx__q { margin: 0; font-size: inherit; letter-spacing: normal; }
.faqx__q button { display: grid; grid-template-columns: auto 1fr auto; gap: 16px; align-items: center; width: 100%; padding: 22px 22px 22px 24px; text-align: left; border-radius: inherit; }
.faqx__q button:focus-visible { outline: 2px solid var(--accent); outline-offset: -2px; }
.faqx__num { font-family: var(--font-mono); font-size: 0.75rem; color: var(--ink-3); letter-spacing: 0.08em; transition: color 0.3s; }
.faqx__item.is-open .faqx__num { color: var(--accent); }
.faqx__qtext { font-size: clamp(1rem, 0.95rem + 0.25vw, 1.12rem); font-weight: 700; line-height: 1.35; letter-spacing: -0.015em; color: var(--ink); }

.faqx__toggle { position: relative; display: grid; place-items: center; width: 36px; height: 36px; border-radius: 50%; border: 1px solid var(--line-2); transition: background 0.35s, border-color 0.35s, transform 0.5s var(--ease-out); }
.faqx__toggle i { position: absolute; width: 12px; height: 2px; border-radius: 2px; background: var(--ink-2); transition: transform 0.45s var(--ease-out), background 0.3s; }
.faqx__toggle i:last-child { transform: rotate(90deg); }
.faqx__item:hover .faqx__toggle { border-color: var(--accent); }
.faqx__item.is-open .faqx__toggle { background: var(--accent); border-color: var(--accent); transform: rotate(180deg); }
.faqx__item.is-open .faqx__toggle i { background: #fff; }
.faqx__item.is-open .faqx__toggle i:last-child { transform: rotate(0deg); }

/* Respuesta: despliegue suave de altura automática */
.faqx__a { display: grid; grid-template-rows: 0fr; transition: grid-template-rows 0.5s var(--ease-out); }
.faqx__item.is-open .faqx__a { grid-template-rows: 1fr; }
.faqx__a-inner { overflow: hidden; min-height: 0; padding: 0 24px 0 62px; display: grid; gap: 16px; opacity: 0; transform: translateY(-6px); transition: opacity 0.35s, transform 0.5s var(--ease-out), padding 0.5s var(--ease-out); }
.faqx__item.is-open .faqx__a-inner { opacity: 1; transform: none; padding-bottom: 24px; transition-delay: 0.08s; }
@media (max-width: 600px) {
  .faqx__q button { grid-template-columns: 1fr auto; gap: 12px; padding: 18px; }
  .faqx__num { display: none; }
  .faqx__a-inner { padding-left: 18px; padding-right: 18px; }
}
.faqx__a-inner > p { color: var(--ink-2); line-height: 1.75; }
.faqx mark { background: color-mix(in srgb, var(--heat-400) 32%, transparent); color: inherit; border-radius: 4px; padding: 0 2px; }

.faqx__chips { display: flex; flex-wrap: wrap; gap: 8px; }
.faqx__chips li { padding: 7px 12px; border-radius: var(--radius-pill); font-size: 0.8rem; color: var(--ink-2); background: var(--surface-2); border: 1px solid var(--line); }
.faqx__chips b { color: var(--eco-600); margin-right: 2px; }
:root[data-theme="dark"] .faqx__chips b { color: var(--eco-500); }
.faqx__checks { display: grid; gap: 8px; counter-reset: ck; margin: 0; padding: 0; list-style: none; }
@media (min-width: 640px) { .faqx__checks { grid-template-columns: 1fr 1fr; } }
.faqx__checks li { counter-increment: ck; display: flex; align-items: center; gap: 10px; padding: 10px 12px; border-radius: 12px; background: var(--surface-2); border: 1px solid var(--line); font-size: 0.88rem; font-weight: 500; }
.faqx__checks li::before { content: counter(ck); flex: none; display: grid; place-items: center; width: 24px; height: 24px; border-radius: 50%; background: color-mix(in srgb, var(--accent) 12%, transparent); color: var(--accent); font-family: var(--font-mono); font-size: 0.72rem; }
.faqx__callout { display: flex; gap: 12px; align-items: center; padding: 14px 16px; border-radius: 12px; background: color-mix(in srgb, var(--accent) 8%, transparent); border: 1px solid color-mix(in srgb, var(--accent) 22%, transparent); font-size: 0.9rem; color: var(--ink-2); }
.faqx__callout [data-icon] { width: 22px; height: 22px; color: var(--accent); }
.faqx__a-foot { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px; padding-top: 14px; border-top: 1px dashed var(--line-2); }
.faqx__copy { display: inline-flex; align-items: center; gap: 6px; font-size: 0.8rem; font-weight: 600; color: var(--ink-3); padding: 6px 10px; border-radius: 8px; transition: color 0.25s, background 0.25s; }
.faqx__copy [data-icon] { width: 15px; height: 15px; }
.faqx__copy:hover { color: var(--ink); background: var(--surface-2); }
.faqx__copy.is-done { color: #138a5b; }

.faqx__empty { display: grid; justify-items: center; gap: 10px; padding: 48px 24px; text-align: center; border-radius: var(--radius-lg); border: 1px dashed var(--line-2); color: var(--ink-2); }
.faqx__empty[hidden] { display: none; }
.faqx__empty > [data-icon] { width: 36px; height: 36px; color: var(--ink-3); }