.promo-docs {
  padding: 64px 0;
  background: transparent;
}

.promo-docs.reveal-on-scroll {
  transform: translateY(18px);
}

.promo-docs.reveal-on-scroll .promo-card,
.promo-docs.reveal-on-scroll .promo-docs__header {
  opacity: 0;
  transform: translateY(18px);
  transition:
    opacity 0.72s cubic-bezier(0.22, 0.61, 0.36, 1),
    transform 0.78s cubic-bezier(0.22, 0.61, 0.36, 1);
}

.promo-docs.reveal-on-scroll .promo-docs__header {
  transform: translateX(34px);
  transition-delay: 0.18s;
}

.promo-docs.reveal-on-scroll .promo-card:nth-child(1) {
  transition-delay: 0.06s;
}

.promo-docs.reveal-on-scroll .promo-card:nth-child(2) {
  transition-delay: 0.12s;
}

.promo-docs.reveal-on-scroll .promo-card:nth-child(3) {
  transition-delay: 0.18s;
}

.promo-docs.reveal-on-scroll .promo-card:nth-child(4) {
  transition-delay: 0.24s;
}

.promo-docs.reveal-on-scroll.is-visible .promo-card,
.promo-docs.reveal-on-scroll.is-visible .promo-docs__header {
  opacity: 1;
  transform: none;
}

.promo-docs__container {
  display: grid;
  grid-template-columns: max-content minmax(280px, 360px);
  align-items: center;
  justify-content: center;
  gap: clamp(40px, 4vw, 56px);
  box-sizing: border-box;
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
}

.promo-docs__header {
  order: 2;
  max-width: 360px;
  margin: 0;
  text-align: left;
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.promo-docs__kicker {
  display: inline-flex;
  align-items: center;
  justify-content: flex-start;
  gap: 12px;
  margin-bottom: 12px;
  color: #ef4444;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
}

.promo-docs__kicker::before {
  content: "";
  width: 70px;
  height: 2px;
  background: currentColor;
  flex: 0 0 auto;
}

.promo-docs__title {
  margin: 0 0 10px;
  color: #0f172a;
  font-size: 2.35rem;
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: 0;
}

.promo-docs__title span {
  color: #ef4444;
}

.promo-docs__subtitle {
  margin: 0;
  color: #475569;
  font-size: 0.98rem;
  line-height: 1.6;
}

.promo-docs__carousel {
  --promo-card-closed-width: 196px;
  --promo-card-open-width: 612px;
  --promo-card-gap: 16px;
  --promo-visible-cards: 4;
  order: 1;
  position: relative;
  width: max-content;
  max-width: 100%;
  padding-bottom: 56px;
}

.promo-docs__viewport {
  width: min(
    calc((var(--promo-card-closed-width) * var(--promo-visible-cards)) + (var(--promo-card-gap) * (var(--promo-visible-cards) - 1))),
    calc(100vw - 520px)
  );
  max-width: 100%;
  overflow-x: auto;
  overflow-y: visible;
  scroll-behavior: smooth;
  scrollbar-width: none;
  transition: width 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.promo-docs__viewport::-webkit-scrollbar {
  display: none;
}

.promo-docs__carousel.has-open .promo-docs__viewport {
  width: min(
    calc(var(--promo-card-open-width) + (var(--promo-card-closed-width) * 3) + (var(--promo-card-gap) * 3)),
    calc(100vw - 520px)
  );
}

.promo-docs__list {
  display: flex;
  flex-wrap: nowrap;
  justify-content: flex-start;
  align-items: flex-start;
  gap: var(--promo-card-gap);
  width: max-content;
  min-width: 100%;
}

.promo-docs__arrow {
  position: absolute;
  bottom: 0;
  z-index: 3;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border: 2px solid #ef4444;
  border-radius: 14px;
  background: #ffffff;
  color: #ef4444;
  font-size: 1.1rem;
  cursor: pointer;
  transition: background 0.18s ease, color 0.18s ease, opacity 0.18s ease, transform 0.18s ease;
}

.promo-docs__arrow--prev {
  left: calc(50% - 48px);
}

.promo-docs__arrow--next {
  left: calc(50% + 6px);
}

.promo-docs__arrow:hover:not(:disabled) {
  background: #ef4444;
  color: #ffffff;
  transform: translateY(-1px);
}

.promo-docs__arrow:disabled {
  cursor: default;
  opacity: 0.35;
}

.promo-card {
  display: flex;
  flex-direction: row;
  width: 196px;
  height: 274px;
  flex: 0 0 auto;
  overflow: hidden;
  border: 1px solid #e2e8f0;
  border-radius: 12px;
  background: #ffffff;
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.06);
  cursor: pointer;
  transition: width 0.4s cubic-bezier(0.4, 0, 0.2, 1), border-color 0.18s ease, box-shadow 0.18s ease;
}

/* Estado expandido (clic / tap en cualquier dispositivo) */
.promo-card.is-open {
  width: 612px;
  border-color: #fecaca;
  box-shadow: 0 14px 34px rgba(15, 23, 42, 0.12);
}

.promo-card.is-open .promo-card__body {
  opacity: 1;
  pointer-events: auto;
}

/* Solo en dispositivos con hover real (desktop) se expande al pasar el cursor */
@media (hover: hover) {
  .promo-card:hover {
    width: 612px;
    border-color: #fecaca;
    box-shadow: 0 14px 34px rgba(15, 23, 42, 0.12);
  }

  .promo-card:hover .promo-card__body {
    opacity: 1;
    pointer-events: auto;
  }
}

.promo-card__media {
  position: relative;
  width: 196px;
  height: 100%;
  flex: 0 0 196px;
  overflow: hidden;
  background: #e2e8f0;
}

.promo-card__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 42, 0.18);
}

.promo-card__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.24s ease;
}

.promo-card:hover .promo-card__image {
  transform: scale(1.03);
}

.promo-card__pdf-mark {
  position: absolute;
  left: 50%;
  top: 50%;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 76px;
  height: 42px;
  border: 1px solid rgba(255, 255, 255, 0.72);
  border-radius: 10px;
  background: rgba(15, 23, 42, 0.42);
  color: rgba(255, 255, 255, 0.92);
  font-size: 0.86rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  transform: translate(-50%, -50%);
  backdrop-filter: blur(2px);
}

.promo-card__placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
  background: linear-gradient(135deg, #f8fafc, #e2e8f0);
}

.promo-card__placeholder i {
  color: #ef4444;
  font-size: 2.5rem;
}

.promo-card__body {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 16px;
  width: 416px;
  flex: 0 0 416px;
  height: 100%;
  padding: 24px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.28s ease 0.1s;
}

.promo-card__content {
  min-width: 0;
}

.promo-card__date {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 6px;
  color: #64748b;
  font-size: 0.78rem;
  font-weight: 700;
}

.promo-card__date::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: #ef4444;
}

.promo-card__title {
  margin: 0;
  color: #0f172a;
  font-size: 1rem;
  font-weight: 800;
  line-height: 1.35;
}

.promo-card__description {
  display: -webkit-box;
  overflow: hidden;
  margin: 7px 0 0;
  color: #475569;
  font-size: 0.88rem;
  line-height: 1.45;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
}

.promo-card__actions {
  display: flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 9px;
}

.promo-card__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  min-height: 36px;
  padding: 0 13px;
  border-radius: 9px;
  font-size: 0.84rem;
  font-weight: 800;
  text-decoration: none;
  white-space: nowrap;
  transition: background 0.18s ease, border-color 0.18s ease, color 0.18s ease, transform 0.18s ease;
}

.promo-card__btn:hover {
  transform: translateY(-1px);
}

.promo-card__btn--primary {
  border: 1px solid #ef4444;
  background: #ef4444;
  color: #ffffff;
}

.promo-card__btn--primary:hover {
  border-color: #dc2626;
  background: #dc2626;
}

.promo-card__btn--secondary {
  border: 1px solid #e2e8f0;
  background: #ffffff;
  color: #334155;
}

.promo-card__btn--secondary:hover {
  border-color: #fecaca;
  background: #fff7f7;
  color: #991b1b;
}

.promo-card__btn i {
  font-size: 0.95rem;
}

@media (max-width: 820px) {
  .promo-docs {
    padding: 46px 0;
  }

  .promo-docs__container {
    display: block;
    padding: 0 16px;
  }

  .promo-docs__header {
    max-width: 700px;
    margin-left: auto;
    margin-bottom: 24px;
    text-align: right;
  }

  .promo-docs__kicker {
    justify-content: flex-end;
  }

  .promo-docs__subtitle {
    margin-left: auto;
  }

  .promo-docs__carousel {
    width: 100%;
    padding-bottom: 52px;
  }

  .promo-docs__viewport,
  .promo-docs__carousel.has-open .promo-docs__viewport {
    width: 100%;
    overflow-x: auto;
    overflow-y: visible;
  }

  .promo-docs__arrow {
    display: inline-flex;
    width: 38px;
    height: 38px;
    border-radius: 12px;
  }

  .promo-docs__arrow--prev {
    left: auto;
    right: 58px;
  }

  .promo-docs__arrow--next {
    left: auto;
    right: 8px;
  }

  .promo-docs__title {
    font-size: 1.6rem;
  }

  .promo-docs__list {
    display: flex;
    flex-wrap: nowrap;
    align-items: start;
    gap: 12px;
    width: max-content;
    min-width: 100%;
  }

  .promo-card,
  .promo-card.is-open {
    width: calc((100vw - 44px) / 2);
    height: auto;
    min-width: 0;
    flex: 0 0 calc((100vw - 44px) / 2);
    border-radius: 10px;
  }

  .promo-card {
    flex-direction: column;
    display: block;
  }

  .promo-card.is-open {
    display: flex;
    flex-direction: row;
    width: min(100%, 390px);
    flex-basis: min(100%, 390px);
    min-height: 184px;
  }

  .promo-card__media {
    width: 100%;
    flex: 0 0 auto;
    height: auto;
    aspect-ratio: 4 / 3.45;
  }

  .promo-card.is-open .promo-card__media {
    width: 48%;
    flex: 0 0 48%;
    height: auto;
    aspect-ratio: auto;
  }

  .promo-card__body {
    display: none;
    width: 52%;
    flex: 0 0 52%;
    height: auto;
    max-width: 0;
    gap: 12px;
    padding: 14px 0;
    opacity: 0;
    overflow: hidden;
    pointer-events: none;
    transition: max-width 0.38s ease, opacity 0.3s ease, padding 0.38s ease;
  }

  .promo-card.is-open .promo-card__body {
    display: flex;
    max-width: 52%;
    padding: 14px;
    opacity: 1;
    pointer-events: auto;
  }

  .promo-card__pdf-mark {
    width: 58px;
    height: 34px;
    border-radius: 8px;
    font-size: 0.76rem;
  }

  .promo-card__title {
    font-size: 0.9rem;
    line-height: 1.25;
  }

  .promo-card__description {
    font-size: 0.8rem;
    line-height: 1.35;
    -webkit-line-clamp: 3;
  }

  .promo-card__date {
    font-size: 0.72rem;
    margin-bottom: 4px;
  }

  .promo-card__actions {
    width: 100%;
  }

  .promo-card__btn {
    flex: 1;
    min-height: 34px;
    padding: 0 10px;
    font-size: 0.78rem;
  }
}

@media (max-width: 520px) {
  .promo-docs {
    padding: 38px 0;
  }

  .promo-docs__container {
    padding: 0 14px;
  }

  .promo-docs__header {
    max-width: 360px;
    margin-bottom: 18px;
  }

  .promo-docs__kicker {
    gap: 10px;
    font-size: 0.72rem;
    letter-spacing: 1.6px;
  }

  .promo-docs__kicker::before {
    width: 64px;
  }

  .promo-docs__title {
    font-size: 1.45rem;
  }

  .promo-docs__subtitle {
    font-size: 0.9rem;
    line-height: 1.55;
  }

  .promo-docs__list {
    gap: 10px;
  }

  .promo-card,
  .promo-card.is-open {
    width: calc((100vw - 38px) / 2);
    flex-basis: calc((100vw - 38px) / 2);
  }

  .promo-card.is-open {
    width: min(100%, 360px);
    flex-basis: min(100%, 360px);
    min-height: 170px;
  }

  .promo-card.is-open .promo-card__media {
    width: 46%;
    flex-basis: 46%;
  }

  .promo-card__body {
    width: 54%;
    flex-basis: 54%;
  }

  .promo-card.is-open .promo-card__body {
    max-width: 54%;
    padding: 12px;
  }

  .promo-card__actions {
    flex-direction: column;
    gap: 8px;
  }

  .promo-card__btn {
    width: 100%;
    min-height: 34px;
    font-size: 0.8rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .promo-docs.reveal-on-scroll,
  .promo-docs.reveal-on-scroll .promo-card,
  .promo-docs.reveal-on-scroll .promo-docs__header {
    opacity: 1;
    transform: none;
    transition: none;
  }
}