/* =========================================================================
   Cemixcol — hoja de estilo unica
   Minimalismo utilitario: monocromo calido, contraste tipografico,
   bordes de 1px, sombras casi inexistentes, un solo acento ocre.
   ========================================================================= */

:root {
  color-scheme: light;

  /* Lienzo y superficies */
  --bg: #FBFBFA;
  --bone: #F7F6F3;
  --surface: #FFFFFF;
  --border: #EAEAEA;
  --border-fuerte: #DCDAD5;

  /* Tinta */
  --ink: #171512;
  --ink-soft: #2F3437;
  --muted: #6E6C68;

  /* Acento ocre industrial (senalizacion de obra, no amarillo neon) */
  --ocre-bg: #FBF3DB;
  --ocre-tx: #7A5100;
  --azul-bg: #E1F3FE;
  --azul-tx: #1B5E87;
  --verde-bg: #EDF3EC;
  --verde-tx: #2E5A32;

  --serif: 'Newsreader', 'Playfair Display', Georgia, serif;
  --sans: 'Manrope', 'Segoe UI', 'Helvetica Neue', sans-serif;
  --mono: 'JetBrains Mono', 'SF Mono', Consolas, monospace;

  --radio: 12px;
  --radio-s: 6px;
  --ancho: 1120px;
  --nav-h: 74px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; scroll-padding-top: calc(var(--nav-h) + 16px); }

body {
  background: var(--bg);
  color: var(--ink-soft);
  font-family: var(--sans);
  font-size: 1rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: none; cursor: pointer; }
input, select, textarea { font: inherit; color: inherit; }

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

::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: var(--bone); }
::-webkit-scrollbar-thumb { background: #D8D6D0; border-radius: 8px; }

/* Salto al contenido */
.skip {
  position: absolute; left: 12px; top: -60px; z-index: 300;
  background: var(--ink); color: #fff; padding: 12px 18px; border-radius: var(--radio-s);
  font-size: .9rem; font-weight: 600; transition: top .18s;
}
.skip:focus { top: 12px; }

/* ---------- Estructura ---------- */
.wrap { max-width: var(--ancho); margin: 0 auto; padding: 0 24px; }
.wrap-angosto { max-width: 760px; margin: 0 auto; padding: 0 24px; }
.seccion { padding: 96px 0; }
.seccion-compacta { padding: 64px 0; }
@media (max-width: 640px) {
  .seccion { padding: 68px 0; }
  .seccion-compacta { padding: 48px 0; }
}

.fondo-bone { background: var(--bone); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }

/* ---------- Tipografia ---------- */
h1, h2, h3, h4 { color: var(--ink); font-weight: 500; }

h1 {
  font-family: var(--serif);
  font-size: clamp(2.3rem, 5.2vw, 3.7rem);
  line-height: 1.06;
  letter-spacing: -0.032em;
}
h1 em { font-style: italic; color: var(--ocre-tx); }

h2 {
  font-family: var(--serif);
  font-size: clamp(1.75rem, 3.4vw, 2.5rem);
  line-height: 1.14;
  letter-spacing: -0.022em;
}

h3 { font-family: var(--serif); font-size: 1.28rem; line-height: 1.3; letter-spacing: -0.012em; }
h4 { font-family: var(--sans); font-weight: 700; font-size: 1rem; line-height: 1.4; letter-spacing: -0.005em; }

/* El nivel del encabezado lo manda la jerarquia del documento, no su aspecto:
   estas clases dan el aspecto de h4 o de h3 al elemento que toque por nivel. */
.titulo-compacto { font-family: var(--sans); font-weight: 700; font-size: 1rem; line-height: 1.4; letter-spacing: -0.005em; }
.titulo-panel { font-family: var(--serif); font-weight: 500; font-size: 1.28rem; line-height: 1.3; letter-spacing: -0.012em; }
.titulo-pie { font-family: var(--mono); font-size: .68rem; letter-spacing: .1em; text-transform: uppercase; color: var(--muted); font-weight: 500; }

.kicker {
  display: block;
  font-family: var(--mono);
  font-size: .72rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 14px;
}

.cabeza-seccion { max-width: 660px; margin-bottom: 52px; }
.cabeza-seccion .sub { color: var(--muted); margin-top: 16px; font-size: 1.04rem; }

.plomo { font-size: 1.08rem; color: var(--muted); max-width: 46ch; }

/* ---------- Etiquetas ---------- */
.pill {
  display: inline-flex; align-items: center; gap: 7px;
  font-family: var(--mono); font-size: .68rem; letter-spacing: .06em; text-transform: uppercase;
  padding: 7px 14px; border-radius: 9999px;
  border: 1px solid var(--border); background: var(--surface); color: var(--ink-soft);
}
.pill-ocre { background: var(--ocre-bg); color: var(--ocre-tx); border-color: transparent; }
a.pill { transition: border-color .18s, background .18s; }
a.pill:hover { border-color: var(--border-fuerte); background: var(--bone); }
.pill .punto { width: 6px; height: 6px; border-radius: 50%; background: currentColor; flex-shrink: 0; }

/* ---------- Botones ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  padding: 14px 24px; border-radius: var(--radio-s);
  font-weight: 600; font-size: .95rem; letter-spacing: -0.005em;
  transition: background .2s, border-color .2s, transform .12s, color .2s;
  cursor: pointer;
}
.btn:active { transform: scale(.98); }
.btn svg { width: 18px; height: 18px; flex-shrink: 0; }

.btn-primario { background: var(--ink); color: #fff; }
.btn-primario:hover { background: #3A3631; }

.btn-secundario { border: 1px solid var(--border-fuerte); background: var(--surface); color: var(--ink); }
.btn-secundario:hover { border-color: #C4C1BA; background: var(--bone); }

.btn-claro { background: #fff; color: var(--ink); }
.btn-claro:hover { background: #EFEEEA; }
.btn-borde-claro { border: 1px solid rgba(255,255,255,.22); color: #fff; }
.btn-borde-claro:hover { border-color: rgba(255,255,255,.5); background: rgba(255,255,255,.06); }

.fila-btn { display: flex; gap: 14px; flex-wrap: wrap; }

/* ---------- Navegacion ---------- */
.nav {
  position: fixed; inset: 0 0 auto 0; z-index: 100;
  background: rgba(251, 251, 250, .84);
  backdrop-filter: blur(12px) saturate(150%);
  border-bottom: 1px solid var(--border);
}
.nav .wrap { display: flex; align-items: center; justify-content: space-between; height: var(--nav-h); gap: 20px; }

.marca { display: flex; align-items: center; gap: 11px; color: var(--ink); flex-shrink: 0; }
.marca svg, .marca img { width: 34px; height: 34px; border-radius: 8px; flex-shrink: 0; }
.marca .texto { display: flex; flex-direction: column; line-height: 1.05; }
.marca .nombre { font-family: var(--sans); font-weight: 800; font-size: 1.06rem; letter-spacing: -0.025em; text-transform: uppercase; }
.marca .lema { font-family: var(--mono); font-size: .58rem; letter-spacing: .1em; text-transform: uppercase; color: var(--muted); margin-top: 2px; }

.nav-links { display: flex; gap: 30px; font-size: .92rem; }
.nav-links a { color: var(--ink-soft); padding: 6px 0; position: relative; }
.nav-links a:hover { color: var(--ink); }
.nav-links a[aria-current="page"] { color: var(--ink); font-weight: 600; }
.nav-links a[aria-current="page"]::after {
  content: ''; position: absolute; left: 0; right: 0; bottom: -2px; height: 1.5px; background: var(--ocre-tx);
}

.nav-cta { background: var(--ink); color: #fff; padding: 11px 20px; border-radius: var(--radio-s); font-size: .88rem; font-weight: 600; flex-shrink: 0; transition: background .2s, transform .12s; }
.nav-cta:hover { background: #3A3631; }
.nav-cta:active { transform: scale(.98); }

.menu-btn { display: none; width: 42px; height: 42px; align-items: center; justify-content: center; border: 1px solid var(--border); border-radius: var(--radio-s); background: var(--surface); }
.menu-btn svg { width: 20px; height: 20px; stroke: var(--ink); }

@media (max-width: 900px) {
  .nav-links, .nav .nav-cta { display: none; }
  .menu-btn { display: flex; }
  .marca .lema { display: none; }
}

.menu-movil {
  position: fixed; inset: var(--nav-h) 0 auto 0; z-index: 99;
  background: var(--surface); border-bottom: 1px solid var(--border);
  padding: 12px 24px 22px;
  display: none; flex-direction: column;
}
.menu-movil.abierto { display: flex; }
.menu-movil a { padding: 15px 0; border-bottom: 1px solid var(--border); font-size: 1rem; color: var(--ink-soft); }
.menu-movil a:last-of-type { border-bottom: none; }
.menu-movil .btn { margin-top: 16px; }

/* ---------- Hero ---------- */
.hero {
  position: relative; overflow: hidden;
  padding: calc(var(--nav-h) + 84px) 0 92px;
  background: radial-gradient(ellipse 900px 520px at 88% -12%, rgba(122, 81, 0, .06), transparent 62%), var(--bone);
}
.hero::after {
  content: ''; position: absolute; inset: 0; pointer-events: none;
  background-image: linear-gradient(var(--border) 1px, transparent 1px), linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 88px 88px;
  opacity: .5;
  mask-image: radial-gradient(ellipse 70% 60% at 20% 40%, #000, transparent 75%);
}
.hero > .wrap { position: relative; z-index: 1; }
.hero-grid { display: grid; grid-template-columns: 1.08fr .92fr; gap: 56px; align-items: center; }
@media (max-width: 940px) { .hero-grid { grid-template-columns: 1fr; gap: 40px; } .hero { padding-top: calc(var(--nav-h) + 56px); } }

.hero .fila-btn { margin: 34px 0 36px; }
.hero-tags { display: flex; gap: 10px; flex-wrap: wrap; }

.marco {
  border-radius: var(--radio); overflow: hidden; border: 1px solid var(--border);
  box-shadow: 0 2px 40px rgba(0, 0, 0, .05); position: relative; background: var(--surface);
}
.marco img { width: 100%; height: 100%; object-fit: cover; }
.hero-media .marco { aspect-ratio: 4 / 3; }
.flotante {
  position: absolute; bottom: 16px; left: 16px;
  background: rgba(255, 255, 255, .93); backdrop-filter: blur(8px);
  padding: 10px 15px; border-radius: 8px;
  font-size: .78rem; font-weight: 600; color: var(--ink);
  border: 1px solid rgba(0, 0, 0, .06);
}

/* ---------- Barra de datos ---------- */
.barra-datos { display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid var(--border); border-radius: var(--radio); overflow: hidden; background: var(--surface); }
.barra-datos .celda { padding: 26px 24px; border-right: 1px solid var(--border); }
.barra-datos .celda:last-child { border-right: none; }
.barra-datos .dato { font-family: var(--serif); font-size: 1.85rem; color: var(--ink); letter-spacing: -0.02em; line-height: 1.1; }
.barra-datos .etiqueta { font-family: var(--mono); font-size: .66rem; letter-spacing: .06em; text-transform: uppercase; color: var(--muted); margin-top: 8px; }
@media (max-width: 820px) {
  .barra-datos { grid-template-columns: repeat(2, 1fr); }
  .barra-datos .celda:nth-child(2n) { border-right: none; }
  .barra-datos .celda:nth-child(-n+2) { border-bottom: 1px solid var(--border); }
}

/* ---------- Rejillas de dos y cuatro columnas ----------
   Van como clase y no como estilo en linea porque un style="" no puede
   llevar media query: en movil se quedaban en dos columnas y el formulario
   de cotizacion salia inservible. */
.cols-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 52px; align-items: start; }
.cols-2-desigual { display: grid; grid-template-columns: 1.32fr .68fr; gap: 32px; align-items: start; }
.cols-centrado { align-items: center; }
.cols-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
@media (max-width: 980px) {
  .cols-2, .cols-2-desigual { grid-template-columns: 1fr; gap: 32px; }
  .cols-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 620px) { .cols-4 { grid-template-columns: 1fr; } }

/* ---------- Bento de tarjetas ---------- */
.bento { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.bento-2 { grid-template-columns: repeat(2, 1fr); }
@media (max-width: 900px) { .bento, .bento-2 { grid-template-columns: 1fr; } }

.tarjeta {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radio);
  padding: 32px; transition: box-shadow .2s, transform .2s, border-color .2s;
  display: flex; flex-direction: column;
}
.tarjeta:hover { box-shadow: 0 2px 8px rgba(0, 0, 0, .04); transform: translateY(-2px); }
.tarjeta .icono {
  width: 44px; height: 44px; border-radius: 9px; display: flex; align-items: center; justify-content: center;
  margin-bottom: 20px; background: var(--ocre-bg); flex-shrink: 0;
}
.tarjeta .icono svg { width: 22px; height: 22px; stroke: var(--ocre-tx); fill: none; stroke-width: 1.9; stroke-linecap: round; stroke-linejoin: round; }
.tarjeta:nth-child(2) .icono { background: var(--azul-bg); }
.tarjeta:nth-child(2) .icono svg { stroke: var(--azul-tx); }
.tarjeta:nth-child(3) .icono { background: var(--verde-bg); }
.tarjeta:nth-child(3) .icono svg { stroke: var(--verde-tx); }
.tarjeta h3 { margin-bottom: 10px; }
.tarjeta p { color: var(--muted); font-size: .95rem; }
.tarjeta .enlace {
  margin-top: 20px; padding-top: 18px; border-top: 1px solid var(--border);
  font-size: .88rem; font-weight: 600; color: var(--ink);
  display: inline-flex; align-items: center; gap: 7px; transition: gap .2s;
}
.tarjeta .enlace:hover { gap: 11px; }
.tarjeta .enlace svg { width: 15px; height: 15px; stroke: currentColor; fill: none; stroke-width: 2; }

/* ---------- Rejilla de razones ---------- */
.rejilla-razones {
  display: grid; grid-template-columns: repeat(2, 1fr);
  border: 1px solid var(--border); border-radius: var(--radio); overflow: hidden; background: var(--surface);
}
.razon { padding: 32px 34px; border-bottom: 1px solid var(--border); border-right: 1px solid var(--border); display: flex; gap: 16px; }
.razon:nth-child(2n) { border-right: none; }
.razon:nth-last-child(-n+2) { border-bottom: none; }
.razon .num { font-family: var(--mono); font-size: .82rem; color: var(--ocre-tx); flex-shrink: 0; padding-top: 3px; }
.razon h3 { margin-bottom: 7px; }
.razon p { color: var(--muted); font-size: .93rem; }
@media (max-width: 820px) {
  .rejilla-razones { grid-template-columns: 1fr; }
  .razon { border-right: none; }
  .razon:nth-last-child(2) { border-bottom: 1px solid var(--border); }
}

/* ---------- Proceso ---------- */
.proceso { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; }
.paso { padding: 0 28px 0 0; position: relative; }
.paso:not(:last-child)::after { content: ''; position: absolute; top: 13px; right: 14px; width: calc(100% - 62px); height: 1px; background: var(--border); }
.paso .n {
  width: 28px; height: 28px; border-radius: 50%; border: 1px solid var(--border-fuerte); background: var(--surface);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--mono); font-size: .68rem; color: var(--ocre-tx); margin-bottom: 18px; position: relative; z-index: 1;
}
.paso h3 { margin-bottom: 8px; }
.paso p { color: var(--muted); font-size: .92rem; }
@media (max-width: 900px) {
  .proceso { grid-template-columns: 1fr; gap: 28px; }
  .paso { padding: 0 0 0 44px; }
  .paso .n { position: absolute; left: 0; top: 0; margin: 0; }
  .paso::after { display: none !important; }
}

/* ---------- Galeria ---------- */
.galeria { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
@media (max-width: 880px) { .galeria { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .galeria { grid-template-columns: 1fr; } }

.pieza { border: 1px solid var(--border); border-radius: var(--radio); overflow: hidden; background: var(--surface); display: flex; flex-direction: column; }
.pieza .foto { aspect-ratio: 4 / 3; overflow: hidden; background: var(--bone); }
.pieza .foto img { width: 100%; height: 100%; object-fit: cover; transition: transform .55s cubic-bezier(.16, 1, .3, 1); }
.pieza:hover .foto img { transform: scale(1.04); }
.pieza .cuerpo { padding: 20px 22px 24px; }
.pieza h3 { margin-bottom: 6px; }
.pieza p { color: var(--muted); font-size: .89rem; }

/* ---------- Franja de imagen ---------- */
.franja { position: relative; min-height: 480px; display: flex; align-items: center; overflow: hidden; background: var(--ink); }
.franja img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: center 42%; opacity: .62; }
/* La foto trae zonas claras justo detras del texto; el degradado garantiza
   el contraste sin tener que bajar la opacidad de la imagen entera. */
.franja::before {
  content: ''; position: absolute; inset: 0; z-index: 1;
  background: linear-gradient(100deg, rgba(23,21,18,.95) 0%, rgba(23,21,18,.88) 38%, rgba(23,21,18,.5) 72%, rgba(23,21,18,.35) 100%);
}
.franja > .wrap { position: relative; z-index: 2; }
.franja .contenido { color: #fff; max-width: 620px; padding: 78px 0; }
@media (max-width: 700px) {
  .franja::before { background: linear-gradient(180deg, rgba(23,21,18,.8) 0%, rgba(23,21,18,.93) 45%); }
}
.franja h2 { color: #fff; }
.franja p { color: #C8C5BE; margin-top: 16px; font-size: 1.03rem; }
.franja .kicker { color: #A5A29B; }
.franja .fila-btn { margin-top: 30px; }

/* ---------- Acordeon ---------- */
.acordeon { border-top: 1px solid var(--border); }
.item-faq { border-bottom: 1px solid var(--border); }
.item-faq button {
  width: 100%; display: flex; align-items: flex-start; justify-content: space-between; gap: 24px;
  padding: 24px 0; text-align: left; color: var(--ink);
  font-family: var(--sans); font-weight: 600; font-size: 1.02rem; line-height: 1.45;
}
.item-faq .signo { flex-shrink: 0; width: 20px; height: 20px; position: relative; margin-top: 3px; }
.item-faq .signo::before, .item-faq .signo::after {
  content: ''; position: absolute; background: var(--ocre-tx); border-radius: 1px;
  top: 50%; left: 50%; transform: translate(-50%, -50%);
}
.item-faq .signo::before { width: 15px; height: 1.8px; }
.item-faq .signo::after { width: 1.8px; height: 15px; transition: transform .22s cubic-bezier(.16, 1, .3, 1); }
.item-faq[data-abierto="si"] .signo::after { transform: translate(-50%, -50%) scaleY(0); }
.item-faq .respuesta { display: none; padding: 0 44px 26px 0; color: var(--muted); font-size: .97rem; }
.item-faq[data-abierto="si"] .respuesta { display: block; }

/* ---------- Formularios ---------- */
.panel {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radio); padding: 34px;
}
@media (max-width: 640px) { .panel { padding: 24px 20px; } }

.campo { margin-bottom: 20px; }
.campo label { display: block; font-size: .84rem; font-weight: 600; color: var(--ink); margin-bottom: 8px; }
.campo .ayuda { display: block; font-weight: 400; color: var(--muted); font-size: .8rem; margin-top: 3px; }
.campo input, .campo select, .campo textarea {
  width: 100%; padding: 12px 14px;
  border: 1px solid var(--border-fuerte); border-radius: var(--radio-s);
  background: var(--bg); font-size: .95rem; transition: border-color .18s, background .18s;
}
.campo input:focus, .campo select:focus, .campo textarea:focus { border-color: var(--ocre-tx); background: var(--surface); outline: none; }
.campo textarea { min-height: 96px; resize: vertical; }
.campo select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%236E6C68' stroke-width='2' stroke-linecap='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 12px center; background-size: 17px; padding-right: 38px; }
.fila-campos { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 560px) { .fila-campos { grid-template-columns: 1fr; } }

.grupo-radio { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
@media (max-width: 640px) { .grupo-radio { grid-template-columns: 1fr; } }
.grupo-radio label {
  display: flex; align-items: center; gap: 10px; padding: 13px 15px;
  border: 1px solid var(--border-fuerte); border-radius: var(--radio-s);
  font-size: .9rem; font-weight: 500; cursor: pointer; margin: 0;
  transition: border-color .18s, background .18s;
}
.grupo-radio label:hover { border-color: #C4C1BA; }
.grupo-radio input { width: auto; accent-color: var(--ocre-tx); }
.grupo-radio input:checked ~ span { font-weight: 700; color: var(--ink); }
.grupo-radio label:has(input:checked) { border-color: var(--ocre-tx); background: var(--ocre-bg); }

.aviso {
  display: flex; gap: 12px; padding: 15px 17px; border-radius: var(--radio-s);
  background: var(--ocre-bg); color: var(--ocre-tx); font-size: .88rem; line-height: 1.5;
}
.aviso svg { width: 18px; height: 18px; flex-shrink: 0; margin-top: 2px; stroke: currentColor; fill: none; stroke-width: 1.9; }

/* ---------- Calculadora ---------- */
.resultado {
  border: 1px solid var(--border); border-radius: var(--radio); background: var(--bone);
  padding: 28px; position: sticky; top: calc(var(--nav-h) + 20px);
}
.resultado .cifra { font-family: var(--serif); font-size: 3rem; color: var(--ink); line-height: 1; letter-spacing: -0.03em; }
.resultado .cifra span { font-size: 1.15rem; color: var(--muted); font-family: var(--sans); letter-spacing: 0; }
.resultado .linea { display: flex; justify-content: space-between; gap: 16px; padding: 11px 0; border-bottom: 1px solid var(--border); font-size: .9rem; }
.resultado .linea:last-of-type { border-bottom: none; }
.resultado .linea .k { color: var(--muted); }
.resultado .linea .v { font-family: var(--mono); font-size: .84rem; color: var(--ink); text-align: right; }

/* En movil el resultado sube por encima del formulario y se queda pegado bajo
   la barra: si va debajo, el usuario edita medidas sin ver el total cambiar.
   Se compacta ocultando el desglose, que en pantalla pequena solo estorba. */
@media (max-width: 980px) {
  .resultado { order: -1; padding: 20px 22px; }
  .resultado .cifra { font-size: 2.2rem; }
  .resultado .linea:not(.destacada) { display: none; }
  .resultado .linea.destacada { border-bottom: none; padding: 8px 0 0; }
  .resultado .btn { margin-top: 14px !important; }
  .resultado > p:last-child { display: none; }
}

.lista-piezas { display: flex; flex-direction: column; gap: 12px; margin-bottom: 20px; }
.pieza-calc { border: 1px solid var(--border); border-radius: var(--radio-s); padding: 16px 18px; background: var(--surface); }
.pieza-calc .encabezado { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 14px; }
.pieza-calc .encabezado strong { font-size: .92rem; color: var(--ink); }
.pieza-calc .quitar { color: var(--muted); font-size: .8rem; text-decoration: underline; }
.pieza-calc .quitar:hover { color: #9F2F2D; }
.pieza-calc .dims { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; }
@media (max-width: 720px) { .pieza-calc .dims { grid-template-columns: repeat(2, 1fr); } }
.pieza-calc .dims .campo { margin: 0; }
.pieza-calc .dims label { font-size: .76rem; font-weight: 500; color: var(--muted); }
.pieza-calc .dims input { padding: 9px 11px; font-size: .9rem; }
.pieza-calc .subtotal { margin-top: 12px; font-family: var(--mono); font-size: .8rem; color: var(--ocre-tx); }

/* ---------- Bloque de contacto oscuro ---------- */
.contacto-oscuro {
  background: var(--ink); color: #EFEEEA; border-radius: 16px; padding: 56px;
  display: grid; grid-template-columns: 1.15fr .85fr; gap: 44px; align-items: center;
}
@media (max-width: 880px) { .contacto-oscuro { grid-template-columns: 1fr; padding: 36px 26px; gap: 30px; } }
.contacto-oscuro h2 { color: #fff; }
.contacto-oscuro .sub { color: #B8B5AE; margin-top: 14px; }
.contacto-oscuro .kicker { color: #A5A29B; }
.lineas-contacto { margin-top: 26px; display: flex; flex-direction: column; gap: 12px; }
.linea-contacto {
  display: flex; align-items: center; gap: 14px; padding: 15px 17px;
  border: 1px solid rgba(255, 255, 255, .13); border-radius: 10px; background: rgba(255, 255, 255, .04);
  transition: border-color .2s, background .2s;
}
.linea-contacto:hover { border-color: rgba(255, 255, 255, .28); background: rgba(255, 255, 255, .07); }
.linea-contacto .ic { width: 36px; height: 36px; border-radius: 8px; background: rgba(255, 255, 255, .08); display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.linea-contacto .ic svg { width: 18px; height: 18px; stroke: #EFEEEA; fill: none; stroke-width: 1.9; stroke-linecap: round; stroke-linejoin: round; }
.linea-contacto .num { display: block; font-family: var(--mono); font-size: 1.02rem; color: #fff; }
.linea-contacto .tag { display: block; font-size: .74rem; color: #9C9992; margin-top: 3px; }
.lado-contacto { display: flex; flex-direction: column; gap: 12px; }

/* ---------- Pie ---------- */
.pie { background: var(--bone); border-top: 1px solid var(--border); padding: 56px 0 32px; }
.pie-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 40px; margin-bottom: 44px; }
@media (max-width: 820px) { .pie-grid { grid-template-columns: 1fr; gap: 32px; } }
.pie .marca { margin-bottom: 16px; }
.pie .desc { color: var(--muted); font-size: .9rem; max-width: 34ch; }
.pie .titulo-pie { font-family: var(--mono); font-size: .68rem; letter-spacing: .1em; text-transform: uppercase; color: var(--muted); font-weight: 500; margin-bottom: 16px; }
.pie ul { list-style: none; display: flex; flex-direction: column; gap: 11px; }
.pie ul a, .pie ul li { color: var(--ink-soft); font-size: .91rem; }
.pie ul a:hover { color: var(--ink); }
.pie-abajo { border-top: 1px solid var(--border); padding-top: 24px; display: flex; justify-content: space-between; gap: 14px; flex-wrap: wrap; }
.pie-abajo p { font-size: .81rem; color: var(--muted); }

/* ---------- WhatsApp flotante ---------- */
.wa {
  position: fixed; bottom: 22px; right: 22px; z-index: 200;
  width: 56px; height: 56px; border-radius: 50%;
  background: #1F6C4F; color: #fff;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 18px rgba(0, 0, 0, .16);
  transition: transform .18s;
}
.wa:hover { transform: scale(1.06); }
.wa:active { transform: scale(.97); }
.wa svg { width: 28px; height: 28px; fill: #fff; }

/* ---------- Revelado al hacer scroll ---------- */
.rev { opacity: 0; transform: translateY(12px); transition: opacity .6s cubic-bezier(.16, 1, .3, 1), transform .6s cubic-bezier(.16, 1, .3, 1); }
.rev.visible { opacity: 1; transform: none; }
.escalonado > * { transition-delay: calc(var(--i, 0) * 80ms); }

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

/* ---------- Utilidades ---------- */
.solo-lectores { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
.centrado { text-align: center; margin-left: auto; margin-right: auto; }
.prosa p { color: var(--muted); margin-bottom: 18px; }
.prosa p:last-child { margin-bottom: 0; }
.prosa ul { margin: 0 0 18px 20px; color: var(--muted); }
.prosa li { margin-bottom: 9px; }
.prosa strong { color: var(--ink); font-weight: 600; }