:root {
  --agua-oscura: #10231f;
  --agua-suave: #edf8f5;
  --agua-borde: #c7e1da;
}

.home-commercial {
  background: var(--fondo);
}

.comercial-header-contenedor {
  gap: 18px !important;
}

.comercial-nav {
  display: flex;
  gap: 18px;
  align-items: center;
}

.header-enlaces,
.comercial-nav .grupo-acciones {
  display: flex;
  gap: 8px;
  align-items: center;
}

.header-enlaces {
  padding-right: 18px;
  border-right: 1px solid var(--borde);
}

.header-enlaces a {
  padding: 8px 10px;
  color: var(--texto-secundario);
  font-size: 0.9rem;
  font-weight: 800;
}

.header-enlaces a:hover {
  color: var(--primario);
}

.comercial-nav .grupo-acciones {
  justify-content: flex-end;
}

.comercial-nav .boton {
  min-height: 40px;
  padding: 8px 15px;
  white-space: nowrap;
  font-size: 0.9rem;
}

.boton-menu-movil-estatico {
  display: none;
}

.inicio-hero-comercial {
  padding: 18px 0 34px;
  background: #f5f8f7;
}

.hero-escena {
  position: relative;
  display: grid;
  width: min(1420px, calc(100% - 28px));
  min-height: clamp(500px, 52vw, 680px);
  margin: 0 auto;
  place-items: center;
  overflow: hidden;
  border-radius: 30px;
  isolation: isolate;
  background: var(--agua-oscura);
  box-shadow: 0 22px 58px rgba(14, 54, 45, 0.16);
}

.hero-fondo-imagen {
  position: absolute;
  inset: 0;
  z-index: -3;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  filter: brightness(0.96) contrast(1.04);
}

.hero-escena::before {
  position: absolute;
  inset: 0;
  z-index: -2;
  content: "";
  background:
    linear-gradient(
      90deg,
      rgba(4, 15, 13, 0.14) 0%,
      rgba(4, 15, 13, 0.18) 24%,
      rgba(4, 15, 13, 0.24) 48%,
      rgba(4, 15, 13, 0.34) 72%,
      rgba(4, 15, 13, 0.42) 100%
    ),
    linear-gradient(
      180deg,
      rgba(4, 15, 13, 0.16) 0%,
      rgba(4, 15, 13, 0.24) 52%,
      rgba(4, 15, 13, 0.34) 100%
    );
}

.hero-escena::after {
  position: absolute;
  inset: 0;
  z-index: -1;
  content: "";
  background: radial-gradient(
    ellipse at 50% 48%,
    rgba(0, 0, 0, 0.30) 0%,
    rgba(0, 0, 0, 0.20) 24%,
    rgba(0, 0, 0, 0.08) 48%,
    rgba(0, 0, 0, 0) 70%
  );
  pointer-events: none;
}

.hero-contenido-comercial {
  width: min(100% - 44px, 740px);
  padding-top: 88px;
  color: white;
  text-align: center;
}

.hero-contenido-comercial h1 {
  max-width: 660px;
  margin: 0 auto;
  color: white;
  font-size: clamp(2.2rem, 3.35vw, 3.3rem);
  font-weight: 700;
  line-height: 1.02;
  letter-spacing: -0.035em;
  text-shadow:
    0 3px 18px rgba(0, 0, 0, 0.42),
    0 1px 3px rgba(0, 0, 0, 0.46);
}

.hero-resalte {
  display: block;
  margin-top: 8px;
}

.hero-contenido-comercial .descripcion-principal {
  max-width: 660px;
  margin: 24px auto 0;
  color: rgba(255, 255, 255, 0.95);
  font-size: clamp(1rem, 1.22vw, 1.1rem);
  line-height: 1.58;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.5);
}

.hero-acciones-comercial {
  display: flex;
  gap: 12px;
  justify-content: center;
  margin-top: 30px;
  flex-wrap: wrap;
}

.hero-acciones-comercial .boton {
  min-height: 52px;
  padding-inline: 26px;
}

.hero-acciones-comercial .boton-principal {
  border: 1px solid rgba(255, 255, 255, 0.96);
  background: rgba(255, 255, 255, 0.96);
  color: #12352e;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.18);
}

.hero-acciones-comercial .boton-principal:hover:not(:disabled) {
  background: white;
}

.soluciones {
  padding: 88px 0;
  background: white;
}

.soluciones-intro {
  max-width: 760px;
  margin-bottom: 24px;
}

.soluciones-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.solucion-card {
  display: flex;
  min-height: 360px;
  padding: 27px;
  flex-direction: column;
  border: 1px solid var(--borde);
  border-radius: 24px;
  background:
    radial-gradient(circle at 88% 14%, rgba(8, 127, 104, 0.08), transparent 30%),
    #fff;
  box-shadow: 0 16px 42px rgba(14, 54, 45, 0.075);
}

.solucion-card--completa {
  background:
    radial-gradient(circle at 90% 12%, rgba(8, 127, 104, 0.12), transparent 32%),
    #f2faf7;
  border-color: #b9ddd4;
}

.solucion-etiqueta {
  display: inline-flex;
  width: fit-content;
  min-height: 28px;
  padding: 5px 10px;
  align-items: center;
  border: 1px solid #cfe3dd;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.86);
  color: #376158;
  font-size: 0.75rem;
  font-weight: 800;
}

.solucion-card h3 {
  margin: 16px 0 9px;
  font-size: clamp(1.3rem, 2vw, 1.55rem);
  line-height: 1.18;
}

.solucion-card > p {
  max-width: 450px;
  color: var(--texto-secundario);
}

.solucion-flujo {
  display: flex;
  gap: 9px;
  align-items: center;
  justify-content: center;
  min-height: 116px;
  margin-top: auto;
  padding: 17px 8px 6px;
  border-top: 1px solid #e1ece8;
}

.flujo-nodo {
  display: grid;
  min-width: 72px;
  min-height: 72px;
  padding: 8px 7px;
  place-items: center;
  border: 1px solid #cfe3dd;
  border-radius: 15px;
  background: #f7fcfa;
  color: #174f44;
  font-size: 0.72rem;
  font-weight: 800;
  line-height: 1.2;
  text-align: center;
}

.flujo-nodo--agua {
  background: #e9f7f3;
}

.flujo-nodo--app {
  border-color: #9fcfc2;
  background: var(--primario);
  color: white;
}

.flujo-simbolo {
  flex: 0 0 auto;
  color: var(--primario);
  font-size: 1.35rem;
  font-weight: 800;
}

.soluciones-tranquilidad {
  max-width: 760px;
  margin: 0 auto;
  padding: clamp(44px, 6vw, 68px) 0;
  text-align: center;
}

.soluciones-tranquilidad h2 {
  font-size: clamp(1.88rem, 3.2vw, 2.5rem);
}

.soluciones-tranquilidad p {
  max-width: 660px;
  margin: 18px auto 0;
  color: var(--texto-secundario);
  font-size: clamp(0.94rem, 1.4vw, 1.04rem);
}

.instalacion-especial {
  position: relative;
  overflow: hidden;
  margin-top: 22px;
  padding: 32px;
  border: 1px solid #b9ddd4;
  border-radius: 24px;
  background: linear-gradient(135deg, #edf8f5, #ffffff);
}

.instalacion-especial::after {
  position: absolute;
  right: -0.04em;
  bottom: -0.32em;
  color: rgba(8, 127, 104, 0.055);
  content: "+";
  font-size: clamp(10rem, 20vw, 18rem);
  font-weight: 800;
  line-height: 1;
  pointer-events: none;
}

.instalacion-especial > * {
  position: relative;
  z-index: 1;
}

.instalacion-especial h2 {
  max-width: 690px;
}

.instalacion-nota {
  display: inline-block;
  margin-top: 20px;
  padding: 10px 13px;
  border-radius: 12px;
  background: #dff2ec;
  color: #174f44;
  font-size: 0.9rem;
  font-weight: 800;
}

.recursos {
  padding: 78px 0;
  background: #f5f8f7;
}

.recursos-intro {
  max-width: 720px;
  margin-bottom: 25px;
}

.recursos-intro h2 {
  margin-top: 7px;
}

.recursos-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.recurso-card {
  display: flex;
  min-height: 206px;
  padding: 25px;
  flex-direction: column;
  border: 1px solid var(--borde);
  border-radius: 22px;
  background: white;
  box-shadow: 0 13px 32px rgba(14, 54, 45, 0.055);
}

.recurso-card h3 {
  margin-top: 4px;
}

.recurso-card p {
  margin-top: 8px;
  color: var(--texto-secundario);
}

.recurso-card .boton {
  width: fit-content;
  margin-top: auto;
  padding: 9px 16px;
  font-size: 0.9rem;
}

@media (max-width: 900px) {
  .encabezado {
    position: sticky !important;
    top: 0;
    overflow: visible !important;
  }

  .comercial-header-contenedor {
    position: relative;
    min-height: 62px !important;
    padding: 8px 0 !important;
    flex-direction: row !important;
    align-items: center !important;
  }

  .boton-menu-movil-estatico {
    display: inline-grid !important;
    width: 44px;
    height: 44px;
    margin-left: auto;
    place-items: center;
    flex: 0 0 auto;
    border: 1px solid var(--borde);
    border-radius: 12px;
    background: white;
    color: var(--texto);
    box-shadow: 0 6px 18px rgba(14, 54, 45, 0.08);
    font-size: 1.45rem;
    font-weight: 800;
    line-height: 1;
  }

  .comercial-nav[data-menu-movil-nav] {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    left: 0;
    z-index: 120;
    display: none;
    max-height: calc(100vh - 86px);
    overflow-y: auto;
    padding: 10px;
    border: 1px solid var(--borde);
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.99);
    box-shadow: 0 18px 45px rgba(14, 54, 45, 0.16);
  }

  .comercial-nav[data-menu-movil-nav].menu-movil-abierto {
    display: flex !important;
    flex-direction: column;
    align-items: stretch;
  }

  .header-enlaces,
  .comercial-nav .grupo-acciones {
    width: 100%;
    padding: 0;
    border: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 6px;
  }

  .header-enlaces a,
  .comercial-nav .boton {
    width: 100%;
    min-height: 46px;
    padding: 10px 14px;
    justify-content: flex-start;
    text-align: left;
  }

  .comercial-nav .boton-principal {
    justify-content: center;
    text-align: center;
  }

  .hero-contenido-comercial {
    padding-top: 0;
  }
}

@media (max-width: 620px) {
  .inicio-hero-comercial {
    padding: 8px 0 24px;
  }

  .hero-escena {
    display: flex;
    width: calc(100% - 16px);
    min-height: 0;
    flex-direction: column;
    border-radius: 20px;
  }

  .hero-fondo-imagen {
    position: static;
    z-index: auto;
    display: block;
    width: 100%;
    height: auto;
    object-fit: contain;
    filter: none;
  }

  .hero-escena::before,
  .hero-escena::after {
    content: none;
  }

  .hero-contenido-comercial {
    width: 100%;
    padding: 26px 22px 28px;
    background: var(--agua-oscura);
  }

  .hero-contenido-comercial h1 {
    font-size: clamp(1.8rem, 8vw, 2.5rem);
    line-height: 1.12;
    text-shadow: none;
  }

  .hero-contenido-comercial .descripcion-principal {
    margin-top: 16px;
    font-size: 1rem;
    line-height: 1.55;
    text-shadow: none;
  }

  .hero-acciones-comercial {
    display: grid;
    gap: 10px;
    margin-top: 22px;
  }

  .hero-acciones-comercial .boton {
    width: 100%;
  }

  .soluciones,
  .recursos {
    padding: 56px 0;
  }

  .soluciones-intro {
    margin-bottom: 16px;
  }

  .soluciones-intro h2,
  .instalacion-especial h2,
  .recursos-intro h2 {
    font-size: 1.88rem;
  }

  .soluciones-intro > p,
  .instalacion-especial > p {
    font-size: 0.94rem;
  }

  .soluciones-grid,
  .recursos-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .solucion-card {
    min-height: 0;
    padding: 21px;
    border-radius: 19px;
  }

  .solucion-card h3 {
    margin-top: 13px;
    font-size: 1.3rem;
  }

  .solucion-flujo {
    justify-content: flex-start;
    min-height: auto;
    overflow-x: auto;
    margin: 20px -3px 0;
    padding: 17px 3px 3px;
  }

  .flujo-nodo {
    min-width: 68px;
    min-height: 66px;
    font-size: 0.68rem;
  }

  .instalacion-especial {
    margin-top: 14px;
    padding: 23px;
    border-radius: 19px;
  }

  .recursos-intro {
    margin-bottom: 18px;
  }

  .recurso-card {
    min-height: 0;
    padding: 21px;
    border-radius: 18px;
  }

  .recurso-card .boton {
    width: 100%;
    margin-top: 18px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}


/* Enlaces del nuevo flujo comercial. */
.solucion-cta {
  width: fit-content;
  min-height: 40px;
  margin-top: 16px;
  padding: 8px 15px;
  font-size: 0.88rem;
}

.instalacion-especial-cta {
  width: fit-content;
  min-height: 42px;
  margin-top: 20px;
  padding: 9px 17px;
  font-size: 0.9rem;
}

@media (max-width: 620px) {
  .solucion-cta,
  .instalacion-especial-cta {
    width: 100%;
  }
}


/* Ilustración comercial para la solución de llenado de cisterna. */
.solucion-imagen {
  width: 100%;
  aspect-ratio: 16 / 9;
  margin: auto 0 0;
  overflow: hidden;
  border: 1px solid #c9e1da;
  border-radius: 16px;
  background: #edf8f5;
  box-shadow: 0 10px 24px rgba(14, 54, 45, 0.08);
}

.solucion-imagen img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.solucion-card--ilustrada .solucion-cta {
  margin-top: 16px;
}

/* Los módulos reales se muestran una sola vez, después de las soluciones. */
.sistema-modulos {
  margin: 32px 0 0;
  padding: 20px 24px 24px;
  border: 1px solid var(--borde);
  border-radius: 20px;
  background: white;
}

.sistema-modulos h3 {
  margin: 0;
  font-size: clamp(1.15rem, 2vw, 1.3rem);
  line-height: 1.3;
}

.sistema-modulos > p {
  max-width: 680px;
  margin-top: 9px;
  color: var(--texto-secundario);
  font-size: 0.96rem;
  line-height: 1.55;
}

.sistema-modulos-fotos {
  display: flex;
  max-width: 780px;
  gap: 24px;
  align-items: flex-start;
  margin: 20px auto 0;
  padding-bottom: 4px;
  overflow-x: auto;
  scroll-snap-type: x proximity;
  scroll-behavior: smooth;
}

.sistema-modulos-fotos:focus-visible {
  outline: 3px solid var(--primario);
  outline-offset: 4px;
  border-radius: 12px;
}

.sistema-modulo {
  flex: 1 0 160px;
  min-width: 0;
  margin: 0;
  text-align: center;
  scroll-snap-align: start;
}

.sistema-modulo img {
  display: block;
  width: 132px;
  max-width: 100%;
  height: 176px;
  margin: 0 auto;
  object-fit: contain;
  background: white;
}

.sistema-modulo figcaption {
  margin-top: 12px;
  color: var(--texto-secundario);
  font-size: 0.9rem;
  line-height: 1.4;
}

.sistema-app {
  margin-top: 28px;
  padding-top: 24px;
  border-top: 1px solid var(--borde);
  text-align: center;
}

.sistema-app h4 {
  margin: 0;
  font-size: 1.125rem;
  line-height: 1.35;
}

.sistema-app-video-marco {
  position: relative;
  width: 100%;
  max-width: 480px;
  aspect-ratio: 16 / 9;
  margin: 16px auto 0;
  overflow: hidden;
  border: 1px solid var(--borde);
  border-radius: 16px;
  background: var(--fondo);
}

.sistema-app-video-marco--vertical {
  max-width: 240px;
  aspect-ratio: 9 / 16;
}

.sistema-app-video {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.sistema-app > p {
  max-width: 480px;
  margin: 12px auto 0;
  color: var(--texto-secundario);
  font-size: 0.94rem;
  line-height: 1.55;
}

@media (max-width: 620px) {
  .sistema-modulos {
    margin-top: 26px;
    padding: 18px 16px 20px;
  }

  .sistema-modulos-fotos {
    gap: 20px;
  }

  .sistema-modulo img {
    width: 120px;
    height: 160px;
  }

  .sistema-app {
    margin-top: 24px;
    padding-top: 20px;
  }

  .sistema-app-video-marco {
    border-radius: 12px;
  }

  .solucion-imagen {
    margin-top: 20px;
    border-radius: 14px;
  }
}

/* Acceso discreto al chat de WhatsApp desde la página principal. */
.home-commercial .whatsapp-contacto {
  position: fixed;
  right: calc(20px + env(safe-area-inset-right, 0px));
  bottom: calc(20px + env(safe-area-inset-bottom, 0px));
  z-index: 50;
  display: inline-flex;
  min-width: 52px;
  min-height: 52px;
  padding: 12px 18px;
  gap: 9px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--primario);
  border-radius: 999px;
  background: var(--primario);
  color: white;
  box-shadow: 0 8px 24px rgba(14, 54, 45, 0.18);
  font-size: 0.9rem;
  font-weight: 700;
  line-height: 1;
  text-decoration: none;
}

.home-commercial .whatsapp-contacto svg {
  display: block;
  flex: 0 0 auto;
}

.home-commercial .whatsapp-contacto:hover {
  border-color: var(--primario-oscuro);
  background: var(--primario-oscuro);
}

.home-commercial .whatsapp-contacto:focus-visible {
  outline: 3px solid var(--primario-oscuro);
  outline-offset: 4px;
  box-shadow: 0 0 0 4px white, 0 8px 24px rgba(14, 54, 45, 0.18);
}

.home-commercial .pie {
  padding-bottom: calc(96px + env(safe-area-inset-bottom, 0px));
}

@media (max-width: 620px) {
  .home-commercial .whatsapp-contacto {
    right: calc(16px + env(safe-area-inset-right, 0px));
    bottom: calc(16px + env(safe-area-inset-bottom, 0px));
    width: 52px;
    height: 52px;
    padding: 12px;
  }

  .home-commercial .whatsapp-contacto-texto {
    display: none;
  }
}

/* Mensajes de protección con las tarjetas existentes. */
.soluciones-tranquilidad--proteccion {
  max-width: none;
}

.soluciones-tranquilidad--proteccion h2 {
  max-width: 760px;
  margin: 0 auto;
}

.soluciones-tranquilidad--proteccion .tarjetas {
  margin-top: 26px;
  text-align: left;
}

/* Acordeón nativo de preguntas frecuentes. */
.preguntas-frecuentes-lista {
  display: grid;
  max-width: 860px;
  margin: 0 auto;
  gap: 16px;
}

.preguntas-frecuentes summary {
  min-height: 44px;
  padding: 8px 0;
  cursor: pointer;
  font-weight: 700;
}

.preguntas-frecuentes summary:focus-visible {
  outline: 3px solid var(--primario);
  outline-offset: 5px;
  border-radius: 4px;
}

.preguntas-frecuentes details > p {
  margin-top: 16px;
}