/* ==========================================================================
   Sección Preguntas Frecuentes (#preguntas)
   Refs: 04-hero-y-seguro.png, 05-manifiesto-polaroids-itinerario.png
   ========================================================================== */

#preguntas {
  scroll-margin-top: 80px;
}

.preguntas-sec__head {
  margin-bottom: clamp(2.5rem, 6vw, 4.5rem);
}

.preguntas-lista {
  border-bottom: 0;
}

.faq-fila {
  border-top: 1px solid var(--linea-oscura);
  padding: 1.35rem 0;
  transition: background-color 0.15s ease;
}

.faq-fila__summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
  cursor: pointer;
  list-style: none;
  user-select: none;
}

.faq-fila__summary::-webkit-details-marker {
  display: none;
}

.faq-fila__summary::marker {
  display: none;
}

.faq-fila__pregunta {
  font-family: var(--f-texto);
  font-size: clamp(1.05rem, 1.3vw, 1.25rem);
  font-weight: 600;
  line-height: 1.35;
  color: var(--tinta);
  transition: color 0.15s ease;
}

.faq-fila__summary:hover .faq-fila__pregunta,
.faq-fila.is-open .faq-fila__pregunta,
.faq-fila[open]:not(.is-closing) .faq-fila__pregunta {
  color: var(--oliva-osc);
}

.faq-fila__icon {
  position: relative;
  flex: none;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  border: 1px solid var(--linea-oscura);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.3s cubic-bezier(0.2, 0, 0, 1), border-color 0.25s ease, background 0.25s ease;
}

.faq-fila__icon::before,
.faq-fila__icon::after {
  content: "";
  position: absolute;
  background-color: var(--tinta);
  transition: background-color 0.25s ease;
}

/* Barra horizontal */
.faq-fila__icon::before {
  width: 10px;
  height: 2px;
}

/* Barra vertical */
.faq-fila__icon::after {
  width: 2px;
  height: 10px;
}

/* Estado abierto: rotación a cruz (x) y fondo oliva */
.faq-fila.is-open .faq-fila__icon,
.faq-fila[open]:not(.is-closing) .faq-fila__icon {
  border-color: var(--oliva);
  background: var(--oliva);
  transform: rotate(45deg);
}

.faq-fila.is-open .faq-fila__icon::before,
.faq-fila.is-open .faq-fila__icon::after,
.faq-fila[open]:not(.is-closing) .faq-fila__icon::before,
.faq-fila[open]:not(.is-closing) .faq-fila__icon::after {
  background-color: #fff;
}

.faq-fila__respuesta {
  padding-top: 0.85rem;
}

.faq-fila__txt {
  margin: 0;
  font-family: var(--f-texto);
  font-size: clamp(0.88rem, 1vw, 0.98rem);
  line-height: 1.65;
  color: rgba(31, 34, 48, 0.85);
}

@media (max-width: 899px) {
  .faq-fila {
    padding: 0;
    display: block;
  }
  .faq-fila__summary {
    min-height: 52px;
    padding: 1rem 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    width: 100%;
  }
  .faq-fila__pregunta {
    font-size: 1.12rem;
    font-weight: 600;
    line-height: 1.35;
  }
  .faq-fila__icon {
    width: 30px;
    height: 30px;
  }
  .faq-fila__respuesta {
    display: block;
    width: 100%;
    padding: 0.2rem 0 1.25rem;
  }
  .faq-fila__txt {
    font-size: 0.96rem;
    line-height: 1.6;
    color: rgba(31, 34, 48, 0.88);
  }
}

/* Grilla a ≥900px alineada con el escalonado del diseño */
@media (min-width: 900px) {
  .faq-fila {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 2rem;
    padding-left: clamp(4rem, 18vw, 16rem);
  }

  .faq-fila__summary {
    grid-column: 1;
    align-self: start;
    padding-top: 0.15rem;
  }

  .faq-fila[open] .faq-fila__respuesta {
    grid-column: 2;
    padding-top: 0.15rem;
  }
}