/* ==========================================================================
   Landify — hoja de estilos
   ========================================================================== */

:root {
  --papel: #F3F0E8;
  --papel-2: #EAE5D8;
  --tarjeta: #FBFAF6;
  --tinta: #15171C;
  --tinta-2: #3B3E46;
  --gris: #6F6B61;
  --linea: #D8D1C1;
  --linea-suave: #E4DFD2;
  --senal: #E2462C;
  --senal-osc: #BD3620;
  --noche: #121418;
  --noche-2: #1B1E24;
  --noche-linea: #2C3038;
  --noche-texto: #C9C5BB;
  --ok: #2F8F5B;

  --f-texto: "Schibsted Grotesk", "Segoe UI", system-ui, -apple-system, sans-serif;
  --f-serif: "Newsreader", Georgia, "Times New Roman", serif;
  --f-mono: "JetBrains Mono", ui-monospace, "Cascadia Mono", Consolas, monospace;

  --ancho: 1240px;
  --margen: clamp(20px, 4vw, 48px);
  --radio: 14px;
  --sombra: 0 1px 0 rgba(21, 23, 28, .04), 0 18px 50px -18px rgba(21, 23, 28, .28);
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 84px; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--papel);
  color: var(--tinta);
  font-family: var(--f-texto);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; }
h1, h2, h3, h4 { margin: 0; font-weight: 700; letter-spacing: -.025em; line-height: 1.05; }
p { margin: 0; }
ul { margin: 0; padding: 0; list-style: none; }
::selection { background: var(--senal); color: #fff; }

:focus-visible { outline: 2px solid var(--senal); outline-offset: 3px; border-radius: 4px; }

.saltar {
  position: absolute; left: -9999px; top: 12px;
  background: var(--tinta); color: #fff; padding: 10px 16px; z-index: 200; border-radius: 8px;
}
.saltar:focus { left: 12px; }

.contenedor { width: 100%; max-width: var(--ancho); margin: 0 auto; padding: 0 var(--margen); }

/* ---------- Tipografía utilitaria ---------- */

.mono {
  font-family: var(--f-mono);
  font-size: 12.5px;
  letter-spacing: .04em;
  text-transform: uppercase;
}

.etiqueta {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--f-mono); font-size: 12.5px; letter-spacing: .06em; text-transform: uppercase;
  color: var(--gris);
}
.etiqueta::before { content: ""; width: 8px; height: 8px; background: var(--senal); border-radius: 50%; }

.serif { font-family: var(--f-serif); font-style: italic; font-weight: 400; letter-spacing: -.02em; }

.titulo-seccion {
  font-size: clamp(36px, 5.4vw, 68px);
  letter-spacing: -.035em;
}
.titulo-seccion .serif { color: var(--senal); }

.bajada { color: var(--tinta-2); font-size: clamp(17px, 1.4vw, 19px); max-width: 56ch; }

/* ---------- Botones ---------- */

.boton {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  padding: 15px 22px;
  font: 600 16px/1 var(--f-texto);
  text-decoration: none;
  border-radius: 999px;
  border: 1.5px solid var(--tinta);
  transition: background-color .2s ease, color .2s ease, border-color .2s ease, transform .2s ease;
  cursor: pointer;
  white-space: nowrap;
}
.boton svg { width: 18px; height: 18px; transition: transform .2s ease; }
.boton:hover svg { transform: translateX(3px); }
.boton-lleno { background: var(--tinta); color: var(--papel); }
.boton-lleno:hover { background: var(--senal); border-color: var(--senal); color: #fff; }
.boton-borde { background: transparent; color: var(--tinta); }
.boton-borde:hover { background: var(--tinta); color: var(--papel); }
.boton-senal { background: var(--senal); border-color: var(--senal); color: #fff; }
.boton-senal:hover { background: var(--senal-osc); border-color: var(--senal-osc); }
.boton-claro { background: var(--papel); border-color: var(--papel); color: var(--tinta); }
.boton-claro:hover { background: var(--senal); border-color: var(--senal); color: #fff; }

.enlace-flecha {
  display: inline-flex; align-items: center; gap: 8px;
  font-weight: 600; text-decoration: none;
  border-bottom: 1.5px solid currentColor; padding-bottom: 2px;
}
.enlace-flecha svg { width: 16px; height: 16px; transition: transform .2s ease; }
.enlace-flecha:hover { color: var(--senal); }
.enlace-flecha:hover svg { transform: translate(2px, -2px); }

/* ---------- Cabecera ---------- */

.cabecera {
  position: sticky; top: 0; z-index: 100;
  background: rgba(243, 240, 232, .88);
  backdrop-filter: saturate(1.4) blur(14px);
  -webkit-backdrop-filter: saturate(1.4) blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color .25s ease;
}
.cabecera.con-borde { border-bottom-color: var(--linea); }
.cabecera .contenedor { display: flex; align-items: center; justify-content: space-between; height: 72px; gap: 24px; }

.marca { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 700; font-size: 20px; letter-spacing: -.03em; }
.marca img { width: 34px; height: 34px; border-radius: 50%; }

.nav { display: flex; align-items: center; gap: 30px; }
.nav a:not(.boton) { text-decoration: none; font-size: 15.5px; color: var(--tinta-2); position: relative; }
.nav a:not(.boton)::after {
  content: ""; position: absolute; left: 0; right: 100%; bottom: -4px; height: 1.5px; background: var(--senal);
  transition: right .25s ease;
}
.nav a:not(.boton):hover, .nav a[aria-current="page"] { color: var(--tinta); }
.nav a:not(.boton):hover::after, .nav a[aria-current="page"]::after { right: 0; }
.nav .boton { padding: 11px 18px; font-size: 15px; }

.menu-boton {
  display: none;
  background: none; border: 0; padding: 8px; margin-right: -8px; cursor: pointer; color: var(--tinta);
}
.menu-boton span { display: block; width: 24px; height: 2px; background: currentColor; margin: 5px 0; transition: transform .25s ease, opacity .2s ease; }
.menu-abierto .menu-boton span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-abierto .menu-boton span:nth-child(2) { opacity: 0; }
.menu-abierto .menu-boton span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Hero ---------- */

.hero { padding: clamp(48px, 8vw, 104px) 0 clamp(56px, 7vw, 96px); overflow: hidden; }
.hero-grilla { display: grid; grid-template-columns: minmax(0, 1.02fr) minmax(0, 1fr); gap: clamp(32px, 5vw, 72px); align-items: center; }

.hero h1 {
  font-size: clamp(44px, 6.6vw, 92px);
  letter-spacing: -.045em;
  line-height: .98;
  margin: 22px 0 28px;
}
.hero h1 .serif { color: var(--senal); letter-spacing: -.03em; }
.hero .bajada { margin-bottom: 36px; }
.hero-acciones { display: flex; flex-wrap: wrap; gap: 12px; }

.hero-dato {
  margin-top: 44px; padding-top: 22px; border-top: 1px solid var(--linea);
  display: flex; flex-wrap: wrap; gap: 8px 28px; color: var(--gris);
}
.hero-dato strong { color: var(--tinta); font-weight: 600; }

/* Composición de capturas */
.pila { position: relative; aspect-ratio: 1 / .92; }
.ventana {
  position: absolute;
  background: var(--tarjeta);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--sombra);
  border: 1px solid rgba(21, 23, 28, .08);
}
.ventana-barra {
  display: flex; align-items: center; gap: 6px;
  height: 30px; padding: 0 12px;
  background: #ECE8DE; border-bottom: 1px solid var(--linea-suave);
  font-family: var(--f-mono); font-size: 11px; color: var(--gris);
}
.ventana-barra i { width: 9px; height: 9px; border-radius: 50%; background: #D4CEC0; }
.ventana-barra span { margin-left: 10px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.ventana img { width: 100%; }

.pila .v1 { width: 78%; top: 0; right: 0; }
.pila .v2 { width: 78%; left: 0; top: 30%; }
.pila .tel {
  position: absolute; right: 3%; bottom: -2%; width: 25%;
  border-radius: 26px; padding: 7px; background: var(--tinta);
  box-shadow: var(--sombra);
}
.pila .tel img { border-radius: 20px; }

.nota-mano {
  position: absolute; left: 2%; top: 5%;
  font-family: var(--f-serif); font-style: italic; font-size: 19px; color: var(--tinta-2);
  display: flex; align-items: flex-end; gap: 6px;
}
.nota-mano svg { width: 60px; height: 40px; color: var(--senal); transform: translateY(14px); }

/* ---------- Franja de rubros ---------- */

.franja { border-top: 1px solid var(--linea); border-bottom: 1px solid var(--linea); background: var(--papel-2); }
.franja .contenedor { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 0; padding-top: 18px; padding-bottom: 18px; }
.franja .mono { color: var(--gris); margin-right: 22px; }
.franja ul { display: flex; flex-wrap: wrap; gap: 8px 0; }
.franja li { font-weight: 500; color: var(--tinta-2); }
.franja li + li::before { content: "/"; color: var(--linea); margin: 0 14px; }

/* ---------- Secciones ---------- */

.seccion { padding: clamp(80px, 11vw, 150px) 0; }
.seccion-cab { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, .8fr); gap: 24px 64px; align-items: end; margin-bottom: clamp(48px, 6vw, 80px); }
.seccion-cab .etiqueta { grid-column: 1 / -1; }

/* ---------- Servicios (dos caminos) ---------- */

.caminos { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.camino {
  position: relative;
  border-radius: 22px;
  padding: clamp(28px, 4vw, 48px);
  display: flex; flex-direction: column; min-height: 520px;
  text-decoration: none;
}
.camino-web { background: var(--tarjeta); border: 1px solid var(--linea); }
.camino-app { background: var(--noche); color: #F3F0E8; }
.camino .letra { font-family: var(--f-mono); font-size: 13px; color: var(--gris); display: flex; justify-content: space-between; }
.camino-app .letra { color: #8D8A83; }
.camino h3 { font-size: clamp(34px, 4vw, 52px); letter-spacing: -.04em; margin: 56px 0 18px; }
.camino h3 .serif { color: var(--senal); }
.camino > p { color: var(--tinta-2); max-width: 44ch; }
.camino-app > p { color: var(--noche-texto); }
.camino ul { margin: 32px 0 40px; border-top: 1px solid var(--linea); }
.camino-app ul { border-top-color: var(--noche-linea); }
.camino li { padding: 12px 0; border-bottom: 1px solid var(--linea); display: flex; justify-content: space-between; gap: 16px; }
.camino-app li { border-bottom-color: var(--noche-linea); }
.camino li span:last-child { font-family: var(--f-mono); font-size: 13px; color: var(--gris); white-space: nowrap; padding-top: 3px; }
.camino-app li span:last-child { color: #8D8A83; }
.camino-pie { margin-top: auto; display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.precio-desde { font-family: var(--f-mono); font-size: 13px; color: var(--gris); }
.precio-desde strong { display: block; font-family: var(--f-texto); font-size: 30px; color: var(--tinta); letter-spacing: -.03em; text-transform: none; }
.camino-app .precio-desde strong { color: #fff; }

/* ---------- Casos ---------- */

.caso {
  display: grid; grid-template-columns: minmax(0, .82fr) minmax(0, 1.18fr); gap: clamp(32px, 5vw, 80px);
  align-items: center;
  padding: clamp(48px, 6vw, 80px) 0;
  border-top: 1px solid var(--linea);
}
.caso:nth-of-type(even) .caso-texto { order: 2; }
.caso-num { display: flex; align-items: baseline; justify-content: space-between; gap: 16px; margin-bottom: 26px; color: var(--gris); }
.caso h3 { font-size: clamp(40px, 5vw, 64px); letter-spacing: -.045em; }
.caso-lema { font-family: var(--f-serif); font-style: italic; font-size: clamp(22px, 2.2vw, 28px); color: var(--tinta-2); margin: 10px 0 22px; line-height: 1.2; }
.caso-problema { color: var(--tinta-2); margin-bottom: 26px; }
.caso-lista { border-top: 1px solid var(--linea); margin-bottom: 28px; }
.caso-lista li { padding: 10px 0 10px 26px; border-bottom: 1px solid var(--linea-suave); position: relative; font-size: 16px; }
.caso-lista li::before { content: ""; position: absolute; left: 2px; top: 20px; width: 12px; height: 1.5px; background: var(--senal); }
.stack { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 30px; }
.stack li { font-family: var(--f-mono); font-size: 12px; padding: 5px 10px; border: 1px solid var(--linea); border-radius: 6px; color: var(--tinta-2); background: var(--tarjeta); }

.caso-imagen { position: relative; }
.caso-imagen .ventana { position: relative; transition: transform .5s cubic-bezier(.2, .7, .2, 1); }
.caso:hover .caso-imagen .ventana { transform: translateY(-6px); }
.caso-imagen .tel { position: absolute; width: 23%; right: -3%; bottom: -8%; border-radius: 24px; padding: 6px; background: var(--tinta); box-shadow: var(--sombra); }
.caso-imagen .tel img { border-radius: 18px; }
.caso-imagen .sello {
  position: absolute; left: -14px; top: -14px; z-index: 3;
  background: var(--senal); color: #fff; border-radius: 999px; padding: 7px 13px;
  font-family: var(--f-mono); font-size: 11.5px; letter-spacing: .05em; text-transform: uppercase;
  display: inline-flex; align-items: center; gap: 7px;
}
.sello i { width: 7px; height: 7px; border-radius: 50%; background: #fff; animation: latido 2.4s ease-in-out infinite; }
@keyframes latido { 0%, 100% { opacity: 1; } 50% { opacity: .35; } }

/* ---------- Galería de webs ---------- */

.galeria-cab { display: flex; justify-content: space-between; align-items: end; gap: 24px; flex-wrap: wrap; margin: clamp(56px, 7vw, 96px) 0 32px; padding-top: 40px; border-top: 1px solid var(--tinta); }
.galeria-cab h3 { font-size: clamp(28px, 3vw, 40px); letter-spacing: -.035em; }
.galeria-cab p { color: var(--gris); max-width: 46ch; }

.galeria { display: grid; grid-template-columns: repeat(6, 1fr); gap: 20px; }
.pieza { grid-column: span 2; text-decoration: none; display: block; }
.pieza:nth-child(1), .pieza:nth-child(2) { grid-column: span 3; }
.pieza-marco { border-radius: 10px; overflow: hidden; border: 1px solid var(--linea); background: var(--tarjeta); aspect-ratio: 12 / 5; }
.pieza-marco img { width: 100%; height: 100%; object-fit: cover; object-position: top; transition: transform .6s cubic-bezier(.2, .7, .2, 1); }
.pieza:hover .pieza-marco img { transform: scale(1.04); }
.pieza-pie { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; padding: 14px 2px 0; }
.pieza-pie strong { font-weight: 600; }
.pieza-pie span { color: var(--gris); font-size: 14px; }
.pieza:hover .pieza-pie strong { color: var(--senal); }

/* ---------- Planes ---------- */

.seccion-planes { background: var(--papel-2); border-top: 1px solid var(--linea); border-bottom: 1px solid var(--linea); }
.planes { display: grid; grid-template-columns: repeat(3, 1fr); background: var(--tarjeta); border: 1px solid var(--linea); border-radius: 22px; overflow: hidden; }
.plan { padding: clamp(28px, 3vw, 40px); display: flex; flex-direction: column; position: relative; }
.plan + .plan { border-left: 1px solid var(--linea); }
.plan-destacado { background: var(--noche); color: #F3F0E8; }
.plan-cab { display: flex; justify-content: space-between; align-items: center; gap: 12px; min-height: 28px; }
.plan-cab .mono { color: var(--gris); }
.plan-destacado .plan-cab .mono { color: #8D8A83; }
.plan-marca { font-family: var(--f-mono); font-size: 11px; text-transform: uppercase; letter-spacing: .06em; background: var(--senal); color: #fff; padding: 5px 10px; border-radius: 999px; }
.plan h3 { font-size: 30px; margin: 26px 0 6px; }
.plan-para { color: var(--gris); font-size: 15.5px; min-height: 50px; }
.plan-destacado .plan-para { color: #A19D94; }
.plan-precio { display: flex; align-items: baseline; gap: 8px; margin: 26px 0; padding-bottom: 26px; border-bottom: 1px solid var(--linea); }
.plan-destacado .plan-precio { border-bottom-color: var(--noche-linea); }
.plan-precio strong { font-size: 64px; letter-spacing: -.05em; line-height: 1; font-weight: 700; }
.plan-precio span { font-family: var(--f-mono); font-size: 13px; color: var(--gris); }
.plan ul { margin-bottom: 34px; flex: 1; }
.plan li { display: flex; gap: 12px; padding: 7px 0; font-size: 16px; }
.plan li svg { flex: none; width: 18px; height: 18px; margin-top: 4px; color: var(--senal); }
.plan .plazo { font-family: var(--f-mono); font-size: 13px; color: var(--tinta-2); margin-bottom: 18px; }
.plan-destacado .plazo { color: var(--noche-texto); }
.plan .boton { width: 100%; }

.planes-pie { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 16px 32px; margin-top: 26px; color: var(--gris); font-size: 15px; }
.pagos { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; }
.pagos li { font-family: var(--f-mono); font-size: 12px; border: 1px solid var(--linea); border-radius: 6px; padding: 5px 10px; color: var(--tinta-2); background: var(--tarjeta); }

/* ---------- Bloque oscuro: sistemas ---------- */

.oscuro { background: var(--noche); color: #F3F0E8; }
.oscuro .etiqueta { color: #8D8A83; }
.oscuro .bajada { color: var(--noche-texto); }
.oscuro .boton-borde { color: #F3F0E8; border-color: #F3F0E8; }
.oscuro .boton-borde:hover { background: #F3F0E8; color: var(--tinta); }

.antes-despues { border-top: 1px solid var(--noche-linea); }
.ad-fila { display: grid; grid-template-columns: 1fr 64px 1fr; align-items: center; gap: 16px; padding: 26px 0; border-bottom: 1px solid var(--noche-linea); }
.ad-fila .antes { color: #8D8A83; font-size: clamp(18px, 1.8vw, 22px); text-decoration: line-through; text-decoration-color: rgba(226, 70, 44, .7); text-decoration-thickness: 1.5px; }
.ad-fila .despues { font-size: clamp(19px, 2vw, 24px); font-weight: 500; letter-spacing: -.015em; }
.ad-fila svg { width: 28px; height: 28px; color: var(--senal); justify-self: center; }
.ad-cab { display: grid; grid-template-columns: 1fr 64px 1fr; gap: 16px; padding-bottom: 14px; color: #8D8A83; }
.oscuro-pie { margin-top: 48px; display: flex; flex-wrap: wrap; gap: 20px 32px; align-items: center; justify-content: space-between; }
.oscuro-pie p { color: var(--noche-texto); max-width: 52ch; }

/* ---------- Proceso ---------- */

.pasos { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; counter-reset: paso; border-top: 1px solid var(--tinta); }
.paso { padding: 28px 28px 0 0; position: relative; }
.paso + .paso { padding-left: 28px; border-left: 1px solid var(--linea); }
.paso .mono { color: var(--senal); }
.paso h3 { font-size: 24px; letter-spacing: -.025em; margin: 40px 0 12px; }
.paso p { color: var(--tinta-2); font-size: 16px; }
.paso .dura { display: block; margin-top: 18px; font-family: var(--f-mono); font-size: 12.5px; color: var(--gris); }

/* ---------- Preguntas ---------- */

.preguntas-grilla { display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr); gap: clamp(32px, 6vw, 96px); align-items: start; }
.preguntas-grilla .seccion-cab { display: block; margin: 0; position: sticky; top: 110px; }
.preguntas-grilla .seccion-cab .titulo-seccion { margin: 20px 0 22px; }
.faq { border-top: 1px solid var(--tinta); }
.faq details { border-bottom: 1px solid var(--linea); }
.faq summary {
  list-style: none; cursor: pointer;
  display: flex; justify-content: space-between; align-items: center; gap: 24px;
  padding: 24px 0; font-size: clamp(18px, 1.7vw, 21px); font-weight: 500; letter-spacing: -.015em;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary:hover { color: var(--senal); }
.faq summary i { flex: none; width: 30px; height: 30px; border: 1px solid var(--linea); border-radius: 50%; position: relative; transition: transform .25s ease, background-color .2s ease; }
.faq summary i::before, .faq summary i::after { content: ""; position: absolute; left: 50%; top: 50%; width: 11px; height: 1.5px; background: currentColor; transform: translate(-50%, -50%); }
.faq summary i::after { transform: translate(-50%, -50%) rotate(90deg); transition: transform .25s ease; }
.faq details[open] summary i { background: var(--tinta); color: var(--papel); border-color: var(--tinta); }
.faq details[open] summary i::after { transform: translate(-50%, -50%) rotate(0deg); }
.faq details p { padding: 0 60px 26px 0; color: var(--tinta-2); }

/* ---------- Contacto ---------- */

.contacto { background: var(--tarjeta); border-top: 1px solid var(--linea); }
.contacto-grilla { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(40px, 6vw, 96px); }
.contacto h2 { font-size: clamp(44px, 6vw, 84px); letter-spacing: -.045em; line-height: .98; margin: 22px 0 28px; }
.contacto h2 .serif { color: var(--senal); }
.canales { margin-top: 44px; border-top: 1px solid var(--linea); }
.canales a { display: flex; justify-content: space-between; align-items: center; gap: 16px; padding: 18px 0; border-bottom: 1px solid var(--linea); text-decoration: none; }
.canales a span:first-child { font-family: var(--f-mono); font-size: 12.5px; text-transform: uppercase; letter-spacing: .05em; color: var(--gris); min-width: 110px; }
.canales a strong { font-weight: 500; font-size: 19px; flex: 1; }
.canales a svg { width: 18px; height: 18px; transition: transform .2s ease; }
.canales a:hover strong { color: var(--senal); }
.canales a:hover svg { transform: translate(3px, -3px); }

.formulario { display: grid; gap: 22px; align-content: start; }
.campo label, .campo legend { display: block; font-family: var(--f-mono); font-size: 12.5px; text-transform: uppercase; letter-spacing: .05em; color: var(--gris); margin-bottom: 10px; padding: 0; }
.campo input, .campo textarea {
  width: 100%;
  font: 400 18px/1.4 var(--f-texto); color: var(--tinta);
  background: transparent;
  border: 0; border-bottom: 1.5px solid var(--linea);
  padding: 8px 0 12px; border-radius: 0;
  transition: border-color .2s ease;
}
.campo textarea { resize: vertical; min-height: 120px; }
.campo input:focus, .campo textarea:focus { outline: none; border-bottom-color: var(--tinta); }
.campo input::placeholder, .campo textarea::placeholder { color: #A7A193; }
fieldset.campo { border: 0; margin: 0; padding: 0; min-width: 0; }
.opciones { display: flex; flex-wrap: wrap; gap: 8px; }
.opciones label { position: relative; margin: 0; text-transform: none; letter-spacing: 0; font: 500 15.5px/1 var(--f-texto); color: var(--tinta); cursor: pointer; }
.opciones input { position: absolute; opacity: 0; pointer-events: none; }
.opciones span { display: inline-block; padding: 11px 16px; border: 1.5px solid var(--linea); border-radius: 999px; transition: all .2s ease; }
.opciones label:hover span { border-color: var(--tinta); }
.opciones input:checked + span { background: var(--tinta); border-color: var(--tinta); color: var(--papel); }
.opciones input:focus-visible + span { outline: 2px solid var(--senal); outline-offset: 2px; }
.formulario .boton { justify-self: start; margin-top: 6px; }
.form-nota { font-size: 14.5px; color: var(--gris); }

/* ---------- Pie ---------- */

.pie { background: var(--noche); color: var(--noche-texto); padding: 72px 0 36px; }
.pie-grilla { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 40px; padding-bottom: 56px; border-bottom: 1px solid var(--noche-linea); }
.pie .marca { color: #F3F0E8; }
.pie-lema { margin-top: 18px; max-width: 32ch; font-family: var(--f-serif); font-style: italic; font-size: 22px; line-height: 1.25; color: #E6E2D8; }
.pie h4 { font-family: var(--f-mono); font-size: 12px; font-weight: 400; text-transform: uppercase; letter-spacing: .06em; color: #8D8A83; margin-bottom: 18px; }
.pie li { margin-bottom: 10px; }
.pie a { text-decoration: none; }
.pie a:hover { color: #fff; }
.pie-legal { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; padding-top: 28px; font-size: 14px; color: #8D8A83; }

/* ---------- WhatsApp flotante ---------- */

.wa-flotante {
  position: fixed; right: 20px; bottom: 20px; z-index: 90;
  display: inline-flex; align-items: center; gap: 10px;
  background: var(--tinta); color: #fff; text-decoration: none;
  padding: 12px 18px 12px 14px; border-radius: 999px;
  box-shadow: 0 12px 30px -10px rgba(21, 23, 28, .5);
  font-weight: 600; font-size: 15px;
  transition: background-color .2s ease, transform .2s ease;
}
.wa-flotante svg { width: 22px; height: 22px; color: #25D366; }
.wa-flotante:hover { background: #25D366; transform: translateY(-2px); }
.wa-flotante:hover svg { color: #fff; }

/* ---------- Página: aplicaciones a medida ---------- */

.hero-app { padding: clamp(56px, 9vw, 120px) 0 clamp(64px, 8vw, 110px); border-bottom: 1px solid var(--linea); }
.hero-app h1 { font-size: clamp(48px, 8vw, 118px); letter-spacing: -.05em; line-height: .95; margin: 24px 0 36px; max-width: 13ch; }
.hero-app h1 .serif { color: var(--senal); }
.hero-app-pie { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 32px; align-items: end; }

.indice-casos { display: grid; grid-template-columns: repeat(3, 1fr); margin-top: clamp(56px, 7vw, 88px); border-top: 1px solid var(--tinta); }
.indice-casos a { padding: 22px 24px 4px 0; text-decoration: none; display: grid; gap: 6px; }
.indice-casos a + a { padding-left: 24px; border-left: 1px solid var(--linea); }
.indice-casos strong { font-size: 22px; letter-spacing: -.02em; }
.indice-casos span:last-child { color: var(--gris); font-size: 15px; }
.indice-casos a:hover strong { color: var(--senal); }

.construimos { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--linea); border-left: 1px solid var(--linea); }
.bloque { padding: clamp(24px, 3vw, 36px); border-right: 1px solid var(--linea); border-bottom: 1px solid var(--linea); min-height: 250px; display: flex; flex-direction: column; transition: background-color .25s ease; }
.bloque:hover { background: var(--tarjeta); }
.bloque .mono { color: var(--gris); }
.bloque h3 { font-size: 25px; letter-spacing: -.025em; margin: auto 0 10px; padding-top: 48px; }
.bloque p { color: var(--tinta-2); font-size: 16px; }
.bloque svg { width: 26px; height: 26px; color: var(--senal); margin-top: 18px; }

.caso-app { padding: clamp(64px, 8vw, 110px) 0; border-top: 1px solid var(--linea); }
.caso-app-cab { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 24px 64px; align-items: end; margin-bottom: 44px; }
.caso-app-cab h2 { font-size: clamp(34px, 11vw, 96px); letter-spacing: -.05em; line-height: .95; }
.caso-app-cab .caso-lema { margin: 14px 0 0; }
.ficha { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--tinta); }
.ficha div { padding: 16px 16px 0 0; }
.ficha div + div { padding-left: 16px; border-left: 1px solid var(--linea); }
.ficha dt { font-family: var(--f-mono); font-size: 11.5px; text-transform: uppercase; letter-spacing: .06em; color: var(--gris); margin-bottom: 6px; }
.ficha dd { margin: 0; font-weight: 500; }
.caso-app-img { margin-bottom: 48px; }
.caso-app-img .ventana { position: relative; }
.caso-app-img.con-tel { position: relative; }
.caso-app-img.con-tel .tel { position: absolute; width: 17%; right: 4%; bottom: -6%; border-radius: 28px; padding: 7px; background: var(--tinta); box-shadow: var(--sombra); }
.caso-app-img.con-tel .tel img { border-radius: 22px; }
.caso-app-cuerpo { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) minmax(0, 1fr); gap: 32px 48px; }
.caso-app-cuerpo h4 { font-family: var(--f-mono); font-size: 12.5px; font-weight: 400; text-transform: uppercase; letter-spacing: .06em; color: var(--senal); margin-bottom: 14px; padding-bottom: 14px; border-bottom: 1px solid var(--linea); }
.caso-app-cuerpo p { color: var(--tinta-2); }
.caso-app-cuerpo .caso-lista { border-top: 0; margin: 0; }
.caso-app-cuerpo .caso-lista li:first-child { padding-top: 0; }
.caso-app-cuerpo .caso-lista li:first-child::before { top: 10px; }

.cobro { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.cobro-item { border: 1px solid var(--noche-linea); border-radius: 18px; padding: clamp(24px, 3vw, 36px); background: var(--noche-2); }
.cobro-item .mono { color: var(--senal); }
.cobro-item h3 { font-size: 26px; letter-spacing: -.025em; margin: 36px 0 12px; }
.cobro-item p { color: var(--noche-texto); font-size: 16px; }

.cierre { text-align: left; }
.cierre h2 { font-size: clamp(48px, 8vw, 120px); letter-spacing: -.05em; line-height: .95; max-width: 14ch; margin: 24px 0 40px; }
.cierre h2 .serif { color: var(--senal); }

/* ---------- Aparición suave (solo con JS) ---------- */

.js .aparece { opacity: 0; transform: translateY(22px); transition: opacity .8s cubic-bezier(.2, .7, .2, 1), transform .8s cubic-bezier(.2, .7, .2, 1); }
.js .aparece.visible { opacity: 1; transform: none; }
.js .aparece.d1 { transition-delay: .08s; }
.js .aparece.d2 { transition-delay: .16s; }
.js .aparece.d3 { transition-delay: .24s; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .js .aparece { opacity: 1; transform: none; transition: none; }
  *, *::before, *::after { animation: none !important; transition-duration: .01ms !important; }
}

/* ---------- Responsive ---------- */

@media (max-width: 1080px) {
  .nav { gap: 22px; }
  .pie-grilla { grid-template-columns: 1fr 1fr 1fr; }
  .pie-grilla > div:first-child { grid-column: 1 / -1; }
  .construimos { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 900px) {
  body { font-size: 16.5px; }

  .menu-boton { display: block; }
  .nav {
    position: fixed; inset: 72px 0 auto 0;
    flex-direction: column; align-items: stretch; gap: 0;
    background: var(--papel); border-bottom: 1px solid var(--linea);
    padding: 8px var(--margen) 24px;
    transform: translateY(-8px); opacity: 0; visibility: hidden;
    transition: opacity .2s ease, transform .2s ease, visibility .2s;
  }
  .menu-abierto .nav { transform: none; opacity: 1; visibility: visible; }
  .nav a:not(.boton) { font-size: 22px; font-weight: 500; letter-spacing: -.02em; padding: 14px 0; border-bottom: 1px solid var(--linea); color: var(--tinta); }
  .nav a:not(.boton)::after { display: none; }
  .nav .boton { margin-top: 20px; padding: 15px; font-size: 16px; }

  .hero-grilla, .seccion-cab, .caminos, .caso, .contacto-grilla, .preguntas-grilla, .caso-app-cab, .caso-app-cuerpo, .hero-app-pie { grid-template-columns: minmax(0, 1fr); }
  .camino li { flex-wrap: wrap; gap: 2px 16px; }
  .camino li span:last-child { white-space: normal; }
  .canales a span:first-child { min-width: 88px; }
  .canales a strong { font-size: 17px; overflow-wrap: anywhere; }
  .pila { max-width: 560px; margin-top: 8px; }
  .caso:nth-of-type(even) .caso-texto { order: 0; }
  .caso-imagen { order: -1; }
  .camino { min-height: 0; }
  .preguntas-grilla .seccion-cab { position: static; }

  .galeria { grid-template-columns: 1fr 1fr; }
  .pieza, .pieza:nth-child(1), .pieza:nth-child(2) { grid-column: span 1; }
  .pieza:nth-child(1) { grid-column: 1 / -1; }

  .planes { grid-template-columns: 1fr; }
  .plan + .plan { border-left: 0; border-top: 1px solid var(--linea); }

  .pasos { grid-template-columns: 1fr 1fr; }
  .paso { padding: 28px 20px 32px 0; }
  .paso + .paso { padding-left: 0; border-left: 0; }
  .paso:nth-child(even) { padding-left: 20px; border-left: 1px solid var(--linea); }
  .paso:nth-child(n+3) { border-top: 1px solid var(--linea); }
  .paso h3 { margin-top: 24px; }

  .ad-cab { display: none; }
  .ad-fila { grid-template-columns: 1fr; gap: 6px; padding: 22px 0; }
  .ad-fila svg { justify-self: start; transform: rotate(90deg); width: 22px; height: 22px; }

  .indice-casos, .cobro { grid-template-columns: 1fr; }
  .indice-casos a + a { padding-left: 0; border-left: 0; border-top: 1px solid var(--linea); }
  .indice-casos a { padding: 18px 0; }
  .cobro { gap: 12px; }
}

@media (max-width: 600px) {
  .hero h1 { font-size: clamp(42px, 12.5vw, 60px); }
  .hero-acciones .boton { flex: 1 1 100%; }
  .franja .mono { width: 100%; }
  .franja ul { gap: 6px 18px; }
  .franja li + li::before { display: none; }
  .pila { aspect-ratio: 1 / 1.05; }
  .pila .v1, .pila .v2 { width: 86%; }
  .pila .tel { width: 30%; }
  .nota-mano { display: none; }
  .galeria { grid-template-columns: 1fr; }
  .pieza:nth-child(1) { grid-column: auto; }
  .pasos { grid-template-columns: 1fr; }
  .paso, .paso:nth-child(even) { padding: 24px 0 28px; border-left: 0; }
  .paso + .paso { border-top: 1px solid var(--linea); }
  .construimos { grid-template-columns: 1fr; }
  .bloque { min-height: 0; }
  .ficha { grid-template-columns: 1fr; }
  .ficha div + div { padding-left: 0; border-left: 0; }
  .ficha div { padding: 12px 0; border-bottom: 1px solid var(--linea); }
  .faq details p { padding-right: 0; }
  .pie-grilla { grid-template-columns: 1fr 1fr; }
  .wa-flotante span { display: none; }
  .wa-flotante { padding: 14px; }
  .caso-imagen .tel { right: 0; }
  .caso-app-img.con-tel .tel { width: 26%; }
}