.section {
  min-height: var(--section-min-h);
  padding: 6rem 0;
  display: flex;
  align-items: center;
}

.section__inner {
  width: 100%;
  max-width: 1452px;
  margin: 0 auto;
  padding: 0 2.5rem;
}

.section__card {
  position: relative;
  padding: 2.6rem 2.8rem;
  border-radius: 12px;
  max-width: 760px;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(13, 27, 46, 0.08);
  box-shadow: 0 12px 32px rgba(13, 27, 46, 0.10);

  opacity: 0;
  transform: translateY(48px);
  transition: opacity 0.8s cubic-bezier(0.22, 1, 0.36, 1),
              transform 0.8s cubic-bezier(0.22, 1, 0.36, 1);
  will-change: opacity, transform;
}

.section__card.is-revealed {
  opacity: 1;
  transform: translateY(0);
}

.section__eyebrow {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  opacity: 0.7;
  margin-bottom: 1rem;
}

.section__title {
  font-size: clamp(2rem, 4vw, 3.4rem);
  line-height: 1.1;
  margin-bottom: 1.5rem;
  max-width: 20ch;
}

.section__body {
  font-size: 1.05rem;
  max-width: 60ch;
  opacity: 0.92;
}

.section__placeholder {
  margin-top: 2rem;
  padding: 1rem 1.25rem;
  border-left: 3px solid currentColor;
  font-size: 0.9rem;
  opacity: 0.65;
  max-width: 60ch;
}

/* --- Section backgrounds + card colors --- */

/* The four scrollable sections share a single continuous vertical gradient
   applied to .sections-stack. Each section is transparent and the gradient
   stops are aligned roughly with section boundaries:
   #que-hacemos (marino) → #nuestro-equipo (azul-medio) →
   #quienes-somos (celeste-teal) → #qa (blanco-glaciar) */

.sections-stack {
  background: var(--gradient-sections);
}

#que-hacemos {
  background: transparent;
  color: var(--blanco-glaciar);
  position: relative;
}

#que-hacemos .section__card {
  background-color: rgba(216, 240, 245, 0.08);
  border-color: rgba(216, 240, 245, 0.22);
  box-shadow: 0 18px 42px rgba(0, 0, 0, 0.35);
}

#nuestro-equipo {
  background: transparent;
  color: var(--marino);
  position: relative;
}

#nuestro-equipo .section__card {
  background-color: rgba(30, 143, 160, 0.28);
  border-color: rgba(13, 27, 46, 0.18);
  box-shadow: 0 16px 36px rgba(13, 27, 46, 0.18);
}

#quienes-somos {
  background: transparent;
  color: var(--marino);
  position: relative;
}

#quienes-somos .section__card {
  background-color: rgba(91, 184, 196, 0.20);
  border-color: rgba(91, 184, 196, 0.34);
  box-shadow: 0 14px 38px rgba(13, 27, 46, 0.12);
}

#trabajos {
  background: transparent;
  color: var(--blanco-glaciar);
  position: relative;
}

#trabajos .section__card {
  background-color: rgba(13, 27, 46, 0.20);
  border-color: rgba(240, 250, 250, 0.16);
  box-shadow: 0 18px 42px rgba(13, 27, 46, 0.28);
}

#qa {
  background: transparent;
  color: var(--marino);
  position: relative;
}

#qa .section__card {
  background-color: rgba(37, 99, 168, 0.14);
  border-color: rgba(37, 99, 168, 0.26);
  box-shadow: 0 14px 32px rgba(13, 27, 46, 0.10);
  max-width: none;
}

#qa .section__title {
  margin-bottom: 0.8rem;
  font-size: clamp(2.4rem, 5vw, 4.2rem);
}

.qa-icon {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  width: 2.4rem;
  height: 2.4rem;
  color: #3da8b8;
  opacity: 1;
}

#qa .section__placeholder {
  border-left-color: var(--azul-medio);
  color: var(--azul-indigo);
  opacity: 0.85;
}

/* --- Lead paragraph (closing line) --- */
.section__lead {
  margin: 1.5rem 0 0;
  font-size: 1.15rem;
  font-weight: 600;
  line-height: 1.45;
  color: var(--azul-indigo);
  max-width: 50ch;
}

#que-hacemos .section__lead {
  color: var(--celeste-teal);
}

.quienes-cta {
  display: inline-block;
  margin-top: 1.75rem;
  padding: 0.85rem 1.75rem;
  font-size: 0.88rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--celeste-teal);
  border: 2px solid var(--celeste-teal);
  border-radius: 3px;
  text-decoration: none;
  transition: background-color var(--transition-mid), color var(--transition-mid);
}

.quienes-cta:hover,
.quienes-cta:focus-visible {
  background-color: var(--celeste-teal);
  color: var(--marino);
}

/* --- Team members --- */
.team {
  margin-top: 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.team-member {
  padding: 1.5rem 0;
}

.team-member + .team-member {
  border-top: 1px solid rgba(13, 27, 46, 0.14);
}

.team-member__name {
  font-size: 1.3rem;
  font-weight: 700;
  margin: 0 0 0.25rem;
  color: var(--marino);
}

.team-member__role {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--azul-indigo);
  margin: 0 0 0.9rem;
}

.team-member__bio {
  font-size: 1rem;
  line-height: 1.6;
  margin: 0;
  opacity: 0.92;
}

/* --- Services (¿Qué hacemos?) --- */
.services {
  margin-top: 1.75rem;
  display: flex;
  flex-direction: column;
}

.service {
  padding: 1.5rem 0;
}

.service:first-child {
  padding-top: 0.5rem;
}

.service + .service {
  border-top: 1px solid rgba(216, 240, 245, 0.18);
}

.service__name {
  font-size: 1.2rem;
  font-weight: 700;
  margin: 0 0 0.6rem;
  color: var(--celeste-teal);
  letter-spacing: -0.005em;
}

.service__desc {
  font-size: 1rem;
  line-height: 1.6;
  margin: 0;
  opacity: 0.92;
}

/* --- Services card grid (¿Qué hacemos? redesign) --- */
.services-grid {
  display: grid;
  grid-template-columns: 1fr 0.85fr 1.2fr;
  grid-template-rows: 1fr 1fr;
  gap: 1.1rem;
  width: 100%;
}

.services-grid__title {
  grid-column: 1;
  grid-row: 1 / 3;
  max-width: none;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.service-card {
  background-color: rgba(216, 240, 245, 0.08);
  border: 1px solid rgba(216, 240, 245, 0.22);
  border-radius: 12px;
  padding: 0.9rem 1.75rem;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  box-shadow: 0 18px 42px rgba(0, 0, 0, 0.35);
  opacity: 0;
  transform: translateY(48px);
  transition: opacity 0.8s cubic-bezier(0.22, 1, 0.36, 1),
              transform 0.8s cubic-bezier(0.22, 1, 0.36, 1);
  will-change: opacity, transform;
}

.service-card.is-revealed {
  opacity: 1;
  transform: translateY(0);
}

.service-card:hover {
  transform: translateY(-3px);
  border-color: rgba(91, 184, 196, 0.5);
  box-shadow: 0 20px 48px rgba(0, 0, 0, 0.4);
}

.service-card--vertical {
  grid-column: 2;
  grid-row: 1 / 3;
}

.services-grid > .service-card--horizontal:nth-child(3) {
  grid-column: 3;
  grid-row: 1;
}

.services-grid > .service-card--horizontal:nth-child(4) {
  grid-column: 3;
  grid-row: 2;
}

.service-card__icon {
  position: absolute;
  top: 1.1rem;
  right: 1.1rem;
  width: 2rem;
  height: 2rem;
  color: var(--celeste-teal);
  opacity: 0.75;
  flex-shrink: 0;
}

.service-card__icon--bottom-left {
  top: auto;
  right: auto;
  bottom: 1.1rem;
  left: 1.1rem;
}

.service-card__icon--bottom-right {
  top: auto;
  bottom: 1.1rem;
}

.service-card__name {
  font-size: 1.6rem;
  font-weight: 700;
  margin: 0 0 0.75rem;
  color: var(--celeste-teal);
  letter-spacing: -0.005em;
}

.service-card__desc {
  font-size: 0.95rem;
  line-height: 1.6;
  margin: 0;
  opacity: 0.9;
}

/* --- Quiénes somos grid layout --- */
.quienes-grid {
  display: grid;
  grid-template-columns: minmax(0, 480px) 1fr;
  gap: 1.5rem;
  align-items: stretch;
}

#quienes-somos .quienes-main {
  max-width: none;
}

.team-cards {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.team-card {
  flex: 0 0 calc(50% + 90px);
  width: calc(100% - 90px);
  background-color: rgba(91, 184, 196, 0.20);
  border: 1px solid rgba(91, 184, 196, 0.34);
  border-radius: 12px;
  padding: 1.75rem;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  box-shadow: 0 14px 38px rgba(13, 27, 46, 0.12);
  position: relative;
  transition: box-shadow var(--transition-mid),
              border-color var(--transition-mid),
              transform var(--transition-mid);
  cursor: default;
}

.team-card:first-child {
  align-self: flex-start;
  z-index: 1;
}

.team-card:last-child {
  align-self: flex-end;
  margin-top: -180px;
  z-index: 2;
}

.team-card:hover,
.team-card:focus-within {
  border-color: rgba(91, 184, 196, 0.70);
  box-shadow: 0 20px 48px rgba(13, 27, 46, 0.22);
  transform: translateY(-4px);
}

.team-card.team-card--front {
  z-index: 10 !important;
}

.quienes-main__logo {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  width: 2rem;
  height: 2rem;
  object-fit: contain;
  filter: brightness(0) saturate(100%) invert(73%) sepia(32%) saturate(500%) hue-rotate(150deg) brightness(95%);
  opacity: 0.75;
}

.text-highlight {
  text-decoration: underline;
  text-decoration-color: var(--celeste-teal);
  text-underline-offset: 3px;
  text-decoration-thickness: 1.5px;
}

.team-card__icon {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  width: 2rem;
  height: 2rem;
  color: var(--blanco-glaciar);
  opacity: 1;
}

.team-card:first-child .team-card__icon {
  color: var(--celeste-teal);
}

.team-card:last-child .team-card__icon {
  color: #0f6070;
}

.team-card__name {
  font-size: 1.2rem;
  font-weight: 700;
  margin: 0 0 0.3rem;
  color: var(--marino);
  letter-spacing: -0.005em;
}

.team-card__role {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--azul-indigo);
  margin: 0 0 0.9rem;
}

.team-card__bio {
  font-size: 0.95rem;
  line-height: 1.6;
  margin: 0;
  opacity: 0.85;
}

/* --- Projects (Trabajos) --- */
/* --- Trabajos carrusel --- */
.trabajos-grid {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 1.5rem;
  align-items: stretch;
}

.trabajos-text {
  max-width: none;
  display: flex;
  flex-direction: column;
}

.trabajos-icon {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  width: 2.2rem;
  height: 2.2rem;
  color: var(--celeste-teal);
  opacity: 0.85;
}

.carousel-outer {
  position: relative;
  overflow: hidden;
}

#carousel-prev {
  position: absolute;
  left: 0.75rem;
  top: 50%;
  transform: translateY(-50%);
  z-index: 5;
}

#carousel-next {
  position: absolute;
  right: 0.75rem;
  top: 50%;
  transform: translateY(-50%);
  z-index: 5;
}

.carousel-btn {
  width: 48px;
  height: 48px;
  border: 1px solid rgba(91, 184, 196, 0.6);
  border-radius: 50%;
  background: rgba(13, 27, 46, 0.72);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  color: var(--celeste-teal);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: background-color var(--transition-mid), border-color var(--transition-mid);
}

.carousel-btn:hover:not(:disabled) {
  background-color: rgba(91, 184, 196, 0.25);
  border-color: var(--celeste-teal);
}

.carousel-btn:disabled {
  opacity: 0.25;
  cursor: not-allowed;
}

.carousel-btn svg {
  width: 22px;
  height: 22px;
}

.carousel-wrapper {
  overflow: hidden;
}

.carousel-track {
  display: flex;
  gap: 1.25rem;
  transition: transform 0.4s cubic-bezier(0.22, 1, 0.36, 1);
}

.carousel-track .project {
  flex: 0 0 calc(50% - 0.625rem);
}

.projects {
  margin-top: 1.75rem;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
}

.project {
  display: flex;
  flex-direction: column;
  background-color: rgba(13, 27, 46, 0.82);
  border: 1px solid rgba(91, 184, 196, 0.20);
  border-radius: 12px;
  overflow: hidden;
  transition: transform var(--transition-mid), box-shadow var(--transition-mid), border-color var(--transition-mid);
}

.project:hover {
  transform: translateY(-3px);
  border-color: rgba(91, 184, 196, 0.55);
  box-shadow: 0 20px 42px rgba(13, 27, 46, 0.45);
}

.project__media {
  aspect-ratio: 16 / 10;
  background: linear-gradient(135deg, rgba(91, 184, 196, 0.28), rgba(27, 58, 107, 0.55));
  display: flex;
  align-items: center;
  justify-content: center;
  border-bottom: 1px solid rgba(240, 250, 250, 0.12);
}

.project__media-placeholder {
  font-family: var(--font-brand);
  font-size: 2.6rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: rgba(240, 250, 250, 0.55);
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.35);
}

.project__media-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.6s cubic-bezier(0.22, 1, 0.36, 1);
}

.project:hover .project__media-img,
.project:focus-within .project__media-img {
  transform: scale(1.04);
}

.project__media:has(.project__media-img) {
  background: var(--marino);
}

.project__body {
  padding: 1.25rem 1.4rem 1.5rem;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}

.project__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.project__name {
  font-size: 1.2rem;
  font-weight: 700;
  margin: 0;
  color: var(--blanco-glaciar);
  letter-spacing: -0.005em;
}

.project__status {
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  padding: 0.28rem 0.6rem;
  background-color: rgba(91, 184, 196, 0.18);
  border: 1px solid rgba(91, 184, 196, 0.45);
  color: var(--celeste-teal);
  border-radius: 999px;
  white-space: nowrap;
}

.project__type {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--turquesa-claro);
  margin: 0;
}

.project__desc {
  font-size: 0.95rem;
  line-height: 1.5;
  margin: 0;
  opacity: 0.88;
  flex: 1;
}

.project__link {
  align-self: flex-start;
  margin-top: 0.4rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--celeste-teal);
  text-decoration: none;
  border-bottom: 1px solid rgba(91, 184, 196, 0.45);
  padding-bottom: 1px;
  transition: border-color var(--transition-fast), color var(--transition-fast);
}

.project__link:hover,
.project__link:focus-visible {
  color: var(--blanco-glaciar);
  border-bottom-color: var(--blanco-glaciar);
}

@media (max-width: 720px) {
  .projects {
    grid-template-columns: 1fr;
  }

  .trabajos-grid {
    grid-template-columns: 1fr;
  }

  .carousel-track .project {
    flex: 0 0 85vw;
  }

  .carousel-nav {
    padding-top: 1.25rem;
  }

  .service-card__icon--bottom-left {
    top: 1.1rem;
    right: 1.1rem;
    bottom: auto;
    left: auto;
  }
}

/* --- Q&A accordion --- */
.qa-list {
  list-style: none;
  margin: 1.75rem 0 0;
  padding: 0;
  counter-reset: qa-counter;
}

.qa-item {
  counter-increment: qa-counter;
  border-bottom: 1px solid rgba(13, 27, 46, 0.14);
}

.qa-item:first-child {
  border-top: 1px solid rgba(13, 27, 46, 0.14);
}

.qa-item details summary {
  display: flex;
  align-items: flex-start;
  gap: 0.85rem;
  padding: 1.1rem 0.6rem 1.1rem 0.4rem;
  cursor: pointer;
  font-weight: 600;
  font-size: 1rem;
  line-height: 1.4;
  color: var(--marino);
  list-style: none;
  user-select: none;
  border-radius: 6px;
  transition: background-color var(--transition-fast);
}

.qa-item details summary::-webkit-details-marker {
  display: none;
}

.qa-item details summary:hover,
.qa-item details summary:focus-visible {
  background-color: rgba(91, 184, 196, 0.12);
}

.qa-item details summary::before {
  content: counter(qa-counter) ".";
  flex-shrink: 0;
  min-width: 1.6em;
  font-weight: 700;
  color: var(--azul-medio);
  font-variant-numeric: tabular-nums;
}

.qa-question {
  flex: 1;
}

.qa-item details summary::after {
  content: '';
  flex-shrink: 0;
  width: 10px;
  height: 10px;
  margin-top: 0.4rem;
  border-right: 2px solid var(--azul-medio);
  border-bottom: 2px solid var(--azul-medio);
  transform: rotate(45deg);
  transition: transform 0.3s ease-out;
}

.qa-item details[open] summary::after {
  transform: rotate(-135deg);
  margin-top: 0.65rem;
}

.qa-answer {
  padding: 0 0.6rem 1.3rem 2.45rem;
  font-size: 0.98rem;
  line-height: 1.6;
  opacity: 0.9;
}

.qa-answer p {
  margin: 0 0 0.75rem;
}

.qa-answer p:last-child {
  margin-bottom: 0;
}

.qa-substeps {
  margin: 0.75rem 0 0;
  padding-left: 1.5rem;
  list-style-type: upper-alpha;
}

.qa-substeps li {
  margin-bottom: 0.5rem;
  padding-left: 0.3rem;
}

.qa-substeps li::marker {
  font-weight: 700;
  color: var(--azul-medio);
}

@media (prefers-reduced-motion: reduce) {
  .section__card {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .qa-item details summary::after {
    transition: none;
  }
}

@media (max-width: 640px) {
  .quienes-grid {
    grid-template-columns: 1fr;
  }
  .quienes-main {
    order: -1;
  }
  .team-card--mirror .team-card__icon {
    left: 1.25rem;
    right: auto;
  }
  .team-card--mirror .team-card__name,
  .team-card--mirror .team-card__role,
  .team-card--mirror .team-card__bio {
    text-align: right;
  }
  .team-cards {
    height: auto;
    margin-top: 1rem;
  }
  .team-card {
    flex: none;
    width: 100%;
  }
  .team-card:first-child,
  .team-card:last-child {
    align-self: auto;
  }
  .team-card:last-child {
    margin-top: 1rem;
  }
  .services-grid {
    grid-template-columns: 1fr;
    grid-template-rows: auto;
  }
  .services-grid__title,
  .service-card--vertical,
  .services-grid > .service-card--horizontal:nth-child(3),
  .services-grid > .service-card--horizontal:nth-child(4) {
    grid-column: 1;
    grid-row: auto;
  }
  .section {
    padding: 3.5rem 0;
  }
  .section__card {
    padding: 1.8rem 1.5rem;
    border-radius: 10px;
  }
  .qa-item details summary {
    font-size: 0.95rem;
    padding: 0.95rem 0.4rem;
  }
  .qa-answer {
    padding-left: 2.1rem;
  }
  .team-member,
  .service {
    padding: 1.2rem 0;
  }
  .service__name,
  .team-member__name {
    font-size: 1.1rem;
  }
}

@media (max-width: 480px) {
  .section__inner {
    padding: 0 1rem;
  }
  .section__card {
    padding: 1.4rem 1.2rem;
  }
  .qa-answer {
    padding-left: 1.8rem;
    font-size: 0.92rem;
  }
}