/* ==========================================================================
   ACRISTALAR — hoja de estilos (mobile first)
   Paleta y tipografías del Manual de identidad 2026.
   ========================================================================== */

:root {
  --azul:     #396EA4;   /* Azul Acristalar */
  --profundo: #2C567F;   /* Azul profundo */
  --celeste:  #7DB5DB;   /* Celeste vidrio */
  --blanco:   #FDFAF9;   /* Blanco cálido */
  --gris:     #22303C;   /* Gris azulado */

  --texto:    var(--gris);
  --texto-2:  #6B7A88;
  --linea:    rgba(34, 48, 60, .1);
  --panel:    #F4F6F8;
  --celeste-suave: #E6F0F8;
  --whatsapp: #25D366;

  --display: "Space Grotesk", "Helvetica Neue", Arial, sans-serif;
  --body:    "Work Sans", "Segoe UI", Arial, sans-serif;

  --radio: 18px;
  --radio-sm: 12px;
  --sombra: 0 18px 40px -22px rgba(34, 48, 60, .35);
  --ease: cubic-bezier(.2, .7, .2, 1);
  --nav-h: 66px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--blanco); color: var(--texto);
  font-family: var(--body); font-size: 1rem; line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  padding-top: var(--nav-h);
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; cursor: pointer; }
h1, h2, h3 { font-family: var(--display); font-weight: 600; line-height: 1.1; margin: 0; text-wrap: balance; letter-spacing: -.015em; }
p { margin: 0; }
:focus-visible { outline: 2px solid var(--celeste); outline-offset: 3px; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

.contenedor { width: min(100% - 40px, 1160px); margin-inline: auto; }
.seccion { padding-block: 64px; }
.seccion--panel { background: var(--panel); }

/* Fondo "vidrio": retícula fina como perfiles de una fachada */
.reticula {
  background-image:
    linear-gradient(rgba(57, 110, 164, .07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(57, 110, 164, .07) 1px, transparent 1px);
  background-size: 64px 64px;
}

/* --- Tipografía de sección --------------------------------------------- */
.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: .72rem; font-weight: 600; letter-spacing: .22em; text-transform: uppercase; color: var(--azul);
}
.eyebrow img { width: 16px; height: auto; }
.cabecera { text-align: center; display: grid; gap: 14px; justify-items: center; margin-bottom: 36px; }
.cabecera h2 { font-size: clamp(1.75rem, 1.2rem + 2.6vw, 2.75rem); max-width: 18ch; }
.cabecera p { color: var(--texto-2); max-width: 46ch; font-size: 1.05rem; line-height: 1.55; }
.cabecera--izq { text-align: left; justify-items: start; }

/* --- Botones ----------------------------------------------------------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  padding: 15px 26px; border-radius: 999px; border: 1.5px solid transparent;
  font-weight: 600; font-size: .95rem; letter-spacing: .02em; white-space: nowrap;
  transition: background .25s var(--ease), color .25s var(--ease), border-color .25s var(--ease), transform .25s var(--ease), box-shadow .25s var(--ease);
}
.btn svg { width: 18px; height: 18px; flex: none; }
.btn:active { transform: translateY(1px); }
.btn--primario { background: var(--azul); color: #fff; box-shadow: 0 12px 26px -12px rgba(57, 110, 164, .7); }
.btn--primario:hover { background: var(--profundo); }
.btn--borde { border-color: var(--azul); color: var(--azul); background: transparent; }
.btn--borde:hover { background: var(--celeste-suave); }
.btn--claro { background: var(--blanco); color: var(--profundo); }
.btn--claro:hover { background: #fff; }
.btn--whatsapp { background: var(--whatsapp); color: #fff; box-shadow: 0 12px 26px -12px rgba(37, 211, 102, .7); }
.btn--whatsapp:hover { background: #1DB954; }
.btn--bloque { width: 100%; }

.enlace { display: inline-flex; align-items: center; gap: 8px; font-weight: 600; font-size: .9rem; color: var(--azul); }
.enlace svg { width: 16px; height: 16px; transition: transform .25s var(--ease); }
.enlace:hover svg { transform: translateX(4px); }

/* --- Navegación -------------------------------------------------------- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 50; height: var(--nav-h);
  border-bottom: 1px solid transparent; transition: border-color .3s;
}
/* El desenfoque va en un pseudoelemento: si estuviera en .nav, el panel fijo del menú móvil
   quedaría atrapado dentro de la barra (backdrop-filter crea un nuevo bloque contenedor). */
.nav::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background: rgba(253, 250, 249, .82);
  -webkit-backdrop-filter: blur(16px); backdrop-filter: blur(16px);
  transition: background .3s;
}
.nav.is-scrolled { border-bottom-color: var(--linea); }
.nav.is-scrolled::before { background: rgba(253, 250, 249, .94); }
.nav__inner { height: 100%; display: flex; align-items: center; justify-content: flex-end; gap: 16px; position: relative; }
/* En celular la palabra ACRISTALAR va centrada y el menú a la derecha */
.nav__marca { position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%); display: inline-flex; align-items: center; }
.nav__marca .wm { height: 17px; width: auto; }
.nav__links { list-style: none; margin: 0; padding: 0; display: none; }
.nav__links a { font-size: .95rem; font-weight: 500; color: var(--gris); }
.nav__cta { display: none; padding: 11px 20px; font-size: .88rem; }
.nav__burger {
  width: 44px; height: 44px; border: 0; background: transparent; padding: 0; margin-right: -8px;
  display: flex; flex-direction: column; justify-content: center; align-items: center; gap: 6px;
}
.nav__burger span { display: block; width: 24px; height: 2px; background: var(--gris); border-radius: 2px; transition: transform .3s var(--ease), opacity .3s; }
.nav.is-open .nav__burger span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.nav.is-open .nav__burger span:nth-child(2) { opacity: 0; }
.nav.is-open .nav__burger span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

/* Menú móvil: panel completo con los enlaces grandes y la marca de agua */
.nav.is-open .nav__links {
  display: grid; position: fixed; inset: var(--nav-h) 0 0 0; z-index: 49;
  background: var(--blanco); padding: 24px 20px 32px; align-content: start; gap: 4px; overflow: hidden;
}
.nav.is-open .nav__links::after {
  content: ""; position: absolute; right: -14%; bottom: -8%; width: 70vw; max-width: 380px; aspect-ratio: 1;
  background: url("../images/brand/isotipo-azul.png") center / contain no-repeat; opacity: .07; pointer-events: none;
}
.nav.is-open .nav__links li { border-bottom: 1px solid var(--linea); }
.nav.is-open .nav__links a { display: flex; justify-content: space-between; align-items: center; padding: 18px 4px; font-family: var(--display); font-size: 1.5rem; font-weight: 500; }
.nav.is-open .nav__links a.is-active { color: var(--azul); }
.nav.is-open .nav__links a::after { content: "→"; color: var(--celeste); font-size: 1.2rem; }
.nav.is-open .nav__links li.nav__links-cta { border: 0; margin-top: 22px; }
.nav.is-open .nav__links li.nav__links-cta a { display: inline-flex; justify-content: center; font-family: var(--body); font-size: .95rem; padding: 15px 26px; }
.nav.is-open .nav__links li.nav__links-cta a::after { content: none; }
body.menu-abierto { overflow: hidden; }

/* --- Hero de inicio ---------------------------------------------------- */
.hero { position: relative; overflow: hidden; }
.hero__foto { position: relative; height: 62vh; min-height: 380px; max-height: 560px; }
.hero__foto img { width: 100%; height: 100%; object-fit: cover; object-position: 60% 50%; }
.hero__foto::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(to bottom, rgba(253, 250, 249, 0) 45%, var(--blanco) 100%);
}
.hero__cuerpo { position: relative; text-align: center; margin-top: -72px; display: grid; gap: 18px; justify-items: center; padding-bottom: 48px; }
.hero__cuerpo h1 { font-size: clamp(2.2rem, 1.3rem + 5.2vw, 4.2rem); letter-spacing: -.03em; line-height: 1.02; max-width: 14ch; }
.hero__cuerpo h1 em { font-style: normal; color: var(--azul); }
.hero__sub { color: var(--texto-2); font-size: 1.05rem; max-width: 34ch; line-height: 1.5; }
.hero__acciones { display: grid; gap: 10px; width: 100%; max-width: 360px; margin-top: 6px; }
.hero .marca-agua { position: absolute; left: -18%; top: 6%; width: 78vw; max-width: 520px; opacity: .06; pointer-events: none; }

/* --- Producto estrella: ventanas antirruido ---------------------------- */
.estrella__foto { position: relative; border-radius: var(--radio); overflow: hidden; aspect-ratio: 4 / 3; box-shadow: var(--sombra); }
.estrella__foto img { width: 100%; height: 100%; object-fit: cover; }
.etiqueta { position: absolute; top: 14px; left: 14px; display: inline-flex; align-items: center; gap: 8px; padding: 8px 14px; border-radius: 999px; background: var(--azul); color: #fff; font-size: .72rem; font-weight: 600; letter-spacing: .14em; text-transform: uppercase; box-shadow: 0 10px 24px -10px rgba(34, 48, 60, .5); }
.etiqueta img { width: 14px; height: auto; filter: brightness(0) invert(1); }
.estrella__texto { display: grid; gap: 18px; margin-top: 26px; }
.estrella__texto h2 { font-size: clamp(1.9rem, 1.2rem + 3vw, 3rem); }
.estrella__texto > p { color: var(--texto-2); font-size: 1.05rem; line-height: 1.55; max-width: 44ch; }
.beneficios { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.beneficios li { display: flex; gap: 12px; align-items: flex-start; font-weight: 500; }
.beneficios li::before { content: ""; flex: none; width: 22px; height: 22px; margin-top: 2px; border-radius: 50%; background: var(--celeste-suave) url("../images/brand/isotipo-azul.png") center / 12px no-repeat; }
.estrella__acciones { display: grid; gap: 12px; justify-items: start; margin-top: 4px; }
.tarjeta--estrella { border-color: var(--celeste); box-shadow: 0 22px 44px -22px rgba(57, 110, 164, .55); }
.tarjeta--estrella .producto__num { background: var(--azul); letter-spacing: .12em; }

/* --- Rasgos (4 mini bloques) ------------------------------------------- */
.rasgos { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.rasgo { background: #fff; border: 1px solid var(--linea); border-radius: var(--radio-sm); padding: 18px 16px; display: grid; gap: 8px; align-content: start; }
.rasgo svg { width: 26px; height: 26px; color: var(--azul); }
.rasgo h3 { font-size: .95rem; }
.rasgo p { font-size: .82rem; color: var(--texto-2); line-height: 1.45; }

/* --- Tarjetas y carrusel ---------------------------------------------- */
.tarjetas { display: grid; gap: 18px; }
.carrusel {
  display: flex; gap: 14px; overflow-x: auto; scroll-snap-type: x mandatory; padding: 4px 20px 22px;
  margin-inline: -20px; scrollbar-width: none; -webkit-overflow-scrolling: touch;
}
.carrusel::-webkit-scrollbar { display: none; }
.carrusel > * { flex: 0 0 82%; scroll-snap-align: center; }
.carrusel__pista { display: flex; justify-content: center; gap: 6px; margin-top: -8px; }
.carrusel__pista span { width: 6px; height: 6px; border-radius: 50%; background: var(--linea); transition: background .3s, width .3s; }
.carrusel__pista span.is-active { background: var(--azul); width: 18px; border-radius: 3px; }

.tarjeta { background: #fff; border-radius: var(--radio); overflow: hidden; box-shadow: var(--sombra); border: 1px solid var(--linea); display: grid; align-content: start; transition: transform .35s var(--ease), box-shadow .35s var(--ease); }
.tarjeta:hover { transform: translateY(-4px); box-shadow: 0 26px 48px -24px rgba(34, 48, 60, .45); }
.tarjeta__foto { aspect-ratio: 4 / 3; overflow: hidden; position: relative; background: var(--panel); }
.tarjeta__foto img { width: 100%; height: 100%; object-fit: cover; transition: transform .9s var(--ease); }
.tarjeta:hover .tarjeta__foto img { transform: scale(1.05); }
.tarjeta__foto .iso-marca { position: absolute; right: 12px; bottom: 12px; width: 34px; height: 34px; border-radius: 9px; background: rgba(253, 250, 249, .85); -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px); display: grid; place-items: center; }
.tarjeta__foto .iso-marca img { width: 20px; height: auto; }
.tarjeta__cuerpo { padding: 18px 18px 20px; display: grid; gap: 8px; }
.tarjeta h3 { font-size: 1.15rem; }
.tarjeta p { color: var(--texto-2); font-size: .92rem; line-height: 1.5; }
.tarjeta .enlace { margin-top: 6px; }

/* --- Pilares (icono + título + línea) ---------------------------------- */
.pilares { display: grid; gap: 14px; }
.pilar { display: grid; grid-template-columns: 52px 1fr; gap: 14px; align-items: start; padding: 20px; background: #fff; border-radius: var(--radio); border: 1px solid var(--linea); }
.pilar__icono { width: 52px; height: 52px; border-radius: 14px; background: var(--celeste-suave); display: grid; place-items: center; color: var(--azul); }
.pilar__icono svg { width: 26px; height: 26px; }
.pilar h3 { font-size: 1.05rem; margin-bottom: 4px; }
.pilar p { color: var(--texto-2); font-size: .9rem; line-height: 1.5; }

/* --- Chips ------------------------------------------------------------- */
.chips { display: flex; flex-wrap: wrap; gap: 8px; list-style: none; margin: 0; padding: 0; justify-content: center; }
.chips li, .chips a { font-size: .74rem; font-weight: 600; letter-spacing: .1em; text-transform: uppercase; padding: 9px 14px; border: 1px solid var(--linea); border-radius: 999px; color: var(--profundo); background: #fff; }
.chips a:hover { border-color: var(--azul); color: var(--azul); }

/* --- Llamado a la acción ----------------------------------------------- */
.cta { position: relative; overflow: hidden; background: var(--profundo); color: var(--blanco); border-radius: 26px; padding: 44px 24px; text-align: center; display: grid; gap: 14px; justify-items: center; }
.cta::before { content: ""; position: absolute; inset: 0; background: linear-gradient(135deg, rgba(125, 181, 219, .25), transparent 55%); }
.cta > * { position: relative; }
.cta .marca-agua { position: absolute; right: -14%; bottom: -22%; width: 62%; max-width: 360px; opacity: .1; pointer-events: none; }
.cta h2 { font-size: clamp(1.6rem, 1.1rem + 2.4vw, 2.4rem); max-width: 18ch; }
.cta p { color: rgba(253, 250, 249, .78); max-width: 38ch; }
.cta .btn { margin-top: 8px; }

/* --- Hero de páginas interiores --------------------------------------- */
.hero-pag { position: relative; overflow: hidden; text-align: center; padding: 48px 0 40px; background: var(--blanco); }
.hero-pag .contenedor { display: grid; gap: 14px; justify-items: center; position: relative; }
.hero-pag h1 { font-size: clamp(2.1rem, 1.3rem + 4vw, 3.6rem); letter-spacing: -.03em; max-width: 16ch; }
.hero-pag h1 em { font-style: normal; color: var(--azul); }
.hero-pag p { color: var(--texto-2); max-width: 40ch; font-size: 1.05rem; line-height: 1.5; }
.hero-pag .marca-agua { position: absolute; right: -22%; top: -10%; width: 70vw; max-width: 460px; opacity: .06; pointer-events: none; }

/* --- Productos --------------------------------------------------------- */
.productos { display: grid; gap: 18px; }
.producto__num { position: absolute; top: 12px; left: 12px; font-family: var(--display); font-size: .72rem; font-weight: 600; letter-spacing: .1em; color: var(--blanco); background: rgba(34, 48, 60, .5); padding: 6px 9px; border-radius: 8px; -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px); }

/* --- Proceso (secuencia real: numerada) ------------------------------- */
.pasos { list-style: none; margin: 0; padding: 0; counter-reset: paso; display: grid; gap: 12px; }
.paso { background: #fff; border: 1px solid var(--linea); border-radius: var(--radio); padding: 20px; display: grid; gap: 8px; position: relative; }
.paso__num { font-family: var(--display); font-size: 1.6rem; font-weight: 500; color: var(--celeste); letter-spacing: -.02em; line-height: 1; font-variant-numeric: tabular-nums; }
.paso h3 { font-size: 1.05rem; }
.paso p { color: var(--texto-2); font-size: .9rem; line-height: 1.5; }
.nosotros__foto { border-radius: var(--radio); overflow: hidden; aspect-ratio: 4 / 3; box-shadow: var(--sombra); }
.nosotros__foto img { width: 100%; height: 100%; object-fit: cover; }
.nosotros__intro { display: grid; gap: 22px; }
.nosotros__intro p { color: var(--texto-2); font-size: 1.02rem; line-height: 1.6; }
.dato-fecha { display: inline-grid; gap: 2px; padding: 14px 18px; border-left: 3px solid var(--celeste); background: #fff; border-radius: 0 var(--radio-sm) var(--radio-sm) 0; }
.dato-fecha strong { font-family: var(--display); font-size: 1.35rem; color: var(--profundo); letter-spacing: -.02em; }
.dato-fecha span { font-size: .78rem; letter-spacing: .1em; text-transform: uppercase; color: var(--texto-2); font-weight: 600; }

/* --- Proyectos --------------------------------------------------------- */
.filtros { display: flex; gap: 6px; overflow-x: auto; padding-bottom: 6px; margin-bottom: 20px; scrollbar-width: none; }
.filtros::-webkit-scrollbar { display: none; }
.filtro { flex: none; border: 1px solid var(--linea); background: #fff; padding: 9px 14px; border-radius: 999px; font-size: .74rem; font-weight: 600; letter-spacing: .1em; text-transform: uppercase; color: var(--texto-2); transition: all .25s var(--ease); }
.filtro.is-active { background: var(--gris); border-color: var(--gris); color: var(--blanco); }
.galeria { display: grid; grid-template-columns: 1fr 1fr; grid-auto-rows: 170px; grid-auto-flow: dense; gap: 10px; }
.obra { position: relative; overflow: hidden; border-radius: 14px; background: var(--panel); margin: 0; }
.obra--ancha { grid-column: span 2; }
.obra img { width: 100%; height: 100%; object-fit: cover; transition: transform 1s var(--ease); }
.obra:hover img { transform: scale(1.04); }
.obra figcaption { position: absolute; left: 0; right: 0; bottom: 0; padding: 36px 12px 12px; background: linear-gradient(to top, rgba(34, 48, 60, .75), transparent); color: var(--blanco); font-size: .7rem; letter-spacing: .12em; text-transform: uppercase; font-weight: 600; }
.obra.is-hidden { display: none; }
[data-lightbox] .obra, [data-lightbox] .tarjeta__foto { cursor: zoom-in; }

/* Visor de fotos (lupa) */
.visor { position: fixed; inset: 0; z-index: 100; background: rgba(34, 48, 60, .94); display: none; align-items: center; justify-content: center; padding: 16px; -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px); }
.visor.is-open { display: flex; }
.visor__img { max-width: min(100%, 1200px); max-height: calc(100vh - 120px); object-fit: contain; border-radius: 12px; box-shadow: 0 30px 80px -20px rgba(0, 0, 0, .7); animation: visor-in .25s var(--ease); }
@keyframes visor-in { from { opacity: 0; transform: scale(.97); } to { opacity: 1; transform: none; } }
.visor__pie { position: absolute; left: 16px; right: 16px; bottom: 18px; text-align: center; color: var(--blanco); font-size: .82rem; letter-spacing: .1em; text-transform: uppercase; font-weight: 600; }
.visor__pie span { opacity: .6; font-weight: 500; margin-left: 10px; letter-spacing: .04em; text-transform: none; }
.visor__btn { position: absolute; width: 46px; height: 46px; border-radius: 50%; border: 0; background: rgba(253, 250, 249, .14); color: var(--blanco); display: grid; place-items: center; transition: background .2s; }
.visor__btn:hover { background: rgba(253, 250, 249, .28); }
.visor__btn svg { width: 22px; height: 22px; }
.visor__cerrar { top: 16px; right: 16px; }
.visor__ant { left: 10px; top: 50%; transform: translateY(-50%); }
.visor__sig { right: 10px; top: 50%; transform: translateY(-50%); }
.visor__btn[hidden] { display: none; }
body.visor-abierto { overflow: hidden; }
@media (min-width: 1024px) { .visor { padding: 40px 80px; } .visor__ant { left: 24px; } .visor__sig { right: 24px; } }

/* Muestra de trabajos reales en el inicio: misma pieza .obra, en cuadrícula fija */
.muestra { display: grid; grid-template-columns: 1fr 1fr; grid-auto-rows: 170px; gap: 10px; }
.muestra .obra { display: block; }
.muestra figcaption { pointer-events: none; }

/* --- Contacto ---------------------------------------------------------- */
.datos { display: grid; gap: 12px; }
.dato { display: grid; grid-template-columns: 46px 1fr; gap: 14px; align-items: center; padding: 16px; background: #fff; border: 1px solid var(--linea); border-radius: var(--radio-sm); }
.dato__icono { width: 46px; height: 46px; border-radius: 12px; background: var(--celeste-suave); color: var(--azul); display: grid; place-items: center; }
.dato__icono svg { width: 22px; height: 22px; }
.dato dt { font-size: .7rem; letter-spacing: .16em; text-transform: uppercase; color: var(--texto-2); font-weight: 600; }
.dato dd { margin: 0; font-weight: 500; color: var(--gris); }
.dato dd a { border-bottom: 1px solid var(--linea); }
.dato dd .sep { color: var(--celeste); margin-inline: 8px; }
.dato--wa .dato__icono { background: #E3F8EA; color: #1DB954; }

.formulario { background: #fff; border: 1px solid var(--linea); border-radius: var(--radio); padding: 22px; display: grid; gap: 14px; box-shadow: var(--sombra); }
.formulario h3 { font-size: 1.3rem; }
.formulario > p { color: var(--texto-2); font-size: .9rem; }
.campo { display: grid; gap: 6px; }
.campo label { font-size: .72rem; font-weight: 600; letter-spacing: .12em; text-transform: uppercase; color: var(--profundo); }
.campo input, .campo select, .campo textarea { width: 100%; border: 1px solid var(--linea); background: var(--blanco); padding: 13px 14px; font: inherit; font-size: .95rem; color: var(--gris); border-radius: 10px; -webkit-appearance: none; appearance: none; transition: border-color .25s; }
.campo select { background-image: linear-gradient(45deg, transparent 50%, var(--azul) 50%), linear-gradient(135deg, var(--azul) 50%, transparent 50%); background-position: calc(100% - 20px) 55%, calc(100% - 14px) 55%; background-size: 6px 6px; background-repeat: no-repeat; }
.campo textarea { min-height: 110px; resize: vertical; }
.campo input:focus, .campo select:focus, .campo textarea:focus { border-color: var(--azul); outline: none; }
.formulario__nota { font-size: .78rem; color: var(--texto-2); line-height: 1.5; }

.faq { display: grid; gap: 8px; }
.faq details { background: #fff; border: 1px solid var(--linea); border-radius: var(--radio-sm); padding: 0 16px; }
.faq summary { list-style: none; cursor: pointer; display: flex; justify-content: space-between; gap: 16px; align-items: center; padding: 15px 0; font-family: var(--display); font-weight: 500; font-size: 1rem; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary svg { width: 18px; height: 18px; flex: none; color: var(--azul); transition: transform .3s var(--ease); }
.faq details[open] summary svg { transform: rotate(45deg); }
.faq details p { padding: 0 0 16px; color: var(--texto-2); font-size: .92rem; line-height: 1.55; }

/* --- Pie --------------------------------------------------------------- */
.footer { background: var(--gris); color: var(--blanco); padding: 48px 0 24px; position: relative; overflow: hidden; }
.footer .marca-agua { position: absolute; right: -12%; top: -12%; width: 52vw; max-width: 340px; opacity: .06; pointer-events: none; }
.footer__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 30px 20px; padding-bottom: 30px; border-bottom: 1px solid rgba(253, 250, 249, .15); position: relative; }
.footer__marca { grid-column: 1 / -1; }
.footer__contacto { overflow-wrap: anywhere; }
.footer__marca { display: grid; gap: 14px; }
.footer__marca img { height: 34px; width: auto; }
.footer__marca p { color: rgba(253, 250, 249, .68); font-size: .9rem; max-width: 34ch; line-height: 1.55; }
.footer h4 { font-size: .72rem; letter-spacing: .18em; text-transform: uppercase; color: var(--celeste); margin: 0 0 12px; font-weight: 600; }
.footer ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 9px; font-size: .92rem; }
.footer ul a { color: rgba(253, 250, 249, .85); }
.footer ul a:hover { color: var(--celeste); }
.footer__legal { padding-top: 18px; font-size: .75rem; color: rgba(253, 250, 249, .5); display: grid; gap: 4px; }

.flotante { position: fixed; right: 16px; bottom: 16px; z-index: 40; width: 56px; height: 56px; border-radius: 50%; background: var(--whatsapp); color: #fff; display: grid; place-items: center; box-shadow: 0 14px 30px -10px rgba(0, 0, 0, .45); transition: transform .25s var(--ease); }
.flotante:hover { transform: translateY(-2px); }
.flotante svg { width: 26px; height: 26px; }
.flotante span { display: none; }

.reveal { transform: translateY(18px); transition: transform .8s var(--ease); }
.reveal.in { transform: none; }

/* ======================================================================
   Tablet
   ====================================================================== */
@media (min-width: 640px) {
  .contenedor { width: min(100% - 56px, 1160px); }
  .seccion { padding-block: 80px; }
  .rasgos { grid-template-columns: repeat(4, 1fr); }
  .productos { grid-template-columns: 1fr 1fr; }
  .carrusel { margin-inline: 0; padding: 4px 0 8px; overflow: visible; display: grid; grid-template-columns: repeat(3, 1fr); }
  .carrusel > * { flex: none; }
  .carrusel__pista { display: none; }
  .pilares { grid-template-columns: repeat(3, 1fr); }
  .pilar { grid-template-columns: 1fr; gap: 14px; padding: 24px; }
  .pasos { grid-template-columns: 1fr 1fr; }
  .galeria { grid-template-columns: repeat(3, 1fr); grid-auto-rows: 220px; }
  .muestra { grid-template-columns: repeat(3, 1fr); grid-auto-rows: 220px; }
  .datos { grid-template-columns: 1fr 1fr; }
  .cta { padding: 56px 40px; }
  .hero__acciones { grid-template-columns: 1fr 1fr; max-width: 460px; }
  .estrella__acciones { grid-auto-flow: column; align-items: center; gap: 22px; }
  .footer__grid { grid-template-columns: 1fr 1fr; }
  .flotante { width: auto; height: auto; border-radius: 999px; padding: 12px 18px 12px 14px; gap: 10px; grid-auto-flow: column; font-weight: 600; font-size: .9rem; }
  .flotante span { display: inline; }
}

/* ======================================================================
   Escritorio: distribución distinta a la del celular
   ====================================================================== */
@media (min-width: 1024px) {
  :root { --nav-h: 78px; }
  .seccion { padding-block: 104px; }
  .cabecera { margin-bottom: 48px; }
  .nav__inner { justify-content: space-between; }
  .nav__marca { position: static; transform: none; }
  .nav__marca .wm { height: 18px; }
  .nav__links { display: flex; gap: 34px; align-items: center; }
  .nav__links a { position: relative; padding-block: 6px; }
  .nav__links a::after { content: ""; position: absolute; left: 0; right: 100%; bottom: 0; height: 2px; background: var(--azul); border-radius: 2px; transition: right .3s var(--ease); }
  .nav__links a:hover::after, .nav__links a.is-active::after { right: 0; }
  .nav__links-cta { display: none; }
  .nav__cta { display: inline-flex; }
  .nav__burger { display: none; }

  /* Portada: texto a la izquierda, foto grande a la derecha */
  .hero .contenedor { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr); gap: 56px; align-items: center; min-height: calc(100vh - var(--nav-h)); max-height: 820px; padding-block: 40px; }
  .hero__foto { order: 2; height: auto; max-height: none; min-height: 0; aspect-ratio: 5 / 4.6; border-radius: 28px; overflow: hidden; box-shadow: 0 40px 70px -40px rgba(34, 48, 60, .55); }
  .hero__foto::after { background: linear-gradient(200deg, rgba(255, 255, 255, .22), transparent 40%); }
  .hero__cuerpo { order: 1; text-align: left; justify-items: start; margin-top: 0; padding-bottom: 0; gap: 24px; }
  .hero__cuerpo h1 { max-width: 12ch; }
  .hero__sub { max-width: 42ch; font-size: 1.15rem; }
  .hero__acciones { display: flex; width: auto; max-width: none; }
  .hero .marca-agua { left: auto; right: 44%; top: -10%; width: 34vw; max-width: 520px; opacity: .05; }

  .tarjetas { grid-template-columns: repeat(3, 1fr); gap: 26px; }
  .carrusel { gap: 26px; }
  .productos { grid-template-columns: repeat(3, 1fr); gap: 26px; }
  .pilares { gap: 22px; }
  .pasos { grid-template-columns: repeat(3, 1fr); gap: 18px; }
  .galeria { grid-template-columns: repeat(4, 1fr); grid-auto-rows: 240px; gap: 14px; }
  .muestra { grid-template-columns: repeat(4, 1fr); grid-auto-rows: 260px; gap: 14px; }
  .obra--alta { grid-row: span 2; }
  .dos-columnas { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 64px; align-items: center; }
  .dos-columnas--arriba { align-items: start; }
  .estrella__texto { margin-top: 0; }
  .hero-pag { padding: 72px 0 56px; }
  .cta { padding: 72px 60px; border-radius: 32px; }
  .cta .marca-agua { right: -4%; bottom: -30%; width: 34%; }
  .footer { padding-top: 64px; }
  .footer__grid { grid-template-columns: 1.6fr 1fr 1.2fr; gap: 48px; }
  .footer__marca { grid-column: auto; }
  .footer__legal { grid-auto-flow: column; justify-content: space-between; }
  .flotante { right: 24px; bottom: 24px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { transform: none; transition: none; }
  .tarjeta, .tarjeta__foto img, .obra img { transition: none; }
}