/* ============================================================
   TR CONSTRUCCIÓN SV
   Sistema: "plano de taller"
   Paleta derivada del material real del taller, no de un catálogo
   genérico de lujo: acero grafito, acero cepillado, teca (el
   acabado imitación madera) y yeso de tabla roca.
   ============================================================ */

:root{
  /* --- color: material --- */
  --graphite:    #1C1F21;   /* acero crudo, fondo principal */
  --graphite-2:  #24282B;   /* superficie elevada */
  --graphite-3:  #2E3337;   /* borde sobre oscuro */
  --steel:       #8A9196;   /* acero cepillado, texto secundario */
  --teak:        #A9662F;   /* acabado imitación madera, acento */
  --teak-lite:   #D9A05B;   /* acento legible sobre oscuro */
  --teak-deep:   #7A4517;   /* acento legible sobre claro */
  --drywall:     #EDEDEA;   /* tabla yeso, superficie clara */
  --bone:        #F7F7F5;
  --ink:         #14161A;

  /* --- tipografía --- */
  --font-display: 'Archivo', 'Arial Narrow', Impact, system-ui, sans-serif;
  --font-body: 'Instrument Sans', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, 'SFMono-Regular', Consolas, monospace;

  /* --- retícula: derivada de la división de paneles de una puerta --- */
  --gutter: clamp(1.25rem, 4vw, 4rem);
  --maxw: 78rem;
  --rule: 1px solid var(--graphite-3);
  --rule-light: 1px solid #D2D2CC;
  --ease: cubic-bezier(.22,.61,.36,1);
}

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

html{ scroll-behavior:smooth; -webkit-text-size-adjust:100%; }

body{
  margin:0;
  background:var(--graphite);
  color:var(--bone);
  font-family:var(--font-body);
  font-size:clamp(1rem,.96rem + .2vw,1.0625rem);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

img{ max-width:100%; display:block; }
svg{ display:block; }
a{ color:inherit; }

/* ---------- tipografía base ---------- */
h1,h2,h3,h4{
  font-family:var(--font-display);
  font-variation-settings:'wdth' 118,'wght' 800;
  line-height:.94;
  letter-spacing:-.025em;
  text-transform:uppercase;
  margin:0;
  text-wrap:balance;
}
p{ margin:0 0 1em; text-wrap:pretty; }
p:last-child{ margin-bottom:0; }

/* La mono es vernácula: cotas, medidas, referencias de plano y métricas. */
.mono{
  font-family:var(--font-mono);
  font-size:.6875rem;
  letter-spacing:.14em;
  text-transform:uppercase;
  font-weight:500;
}

.eyebrow{
  font-family:var(--font-mono);
  font-size:.6875rem;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--teak-lite);
  font-weight:500;
  display:flex;
  align-items:center;
  gap:.75rem;
  margin:0 0 1.5rem;
}
.eyebrow::before{
  content:'';
  width:2rem;
  height:1px;
  background:var(--teak);
  flex:none;
}
.on-light .eyebrow{ color:var(--teak-deep); }
.on-light .eyebrow::before{ background:var(--teak-deep); }

/* ---------- layout ---------- */
.wrap{
  max-width:var(--maxw);
  margin-inline:auto;
  padding-inline:var(--gutter);
}

.band{ padding-block:clamp(4.5rem,10vw,8rem); position:relative; }
.band--light{ background:var(--drywall); color:var(--ink); }
.band--tight{ padding-block:clamp(3rem,6vw,4.5rem); }

.section-head{
  display:grid;
  grid-template-columns:1fr;
  gap:1.5rem;
  margin-bottom:clamp(2.5rem,5vw,4rem);
}
@media (min-width:60rem){
  .section-head{ grid-template-columns:minmax(0,1.15fr) minmax(0,1fr); gap:4rem; align-items:end; }
}
.section-head h2{ font-size:clamp(2.25rem,6vw,4.25rem); }
.section-head p{ color:var(--steel); max-width:44ch; }
.band--light .section-head p{ color:#4A5054; }

/* ---------- header ---------- */
.masthead{
  position:sticky; top:0; z-index:100;
  background:rgba(28,31,33,.86);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:var(--rule);
}
.masthead__inner{
  max-width:var(--maxw);
  margin-inline:auto;
  padding:0 var(--gutter);
  height:4.25rem;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:1.5rem;
}
.brand{ display:flex; align-items:center; gap:.7rem; text-decoration:none; flex:0 1 auto; min-width:0; }
/* El logo es apaisado: se fija el alto y el ancho sale solo. */
.brand__mark{ width:auto; height:2.35rem; flex:none; }
.brand__name{
  font-family:var(--font-display);
  font-variation-settings:'wdth' 112,'wght' 800;
  font-size:.9375rem;
  letter-spacing:.02em;
  text-transform:uppercase;
  line-height:1;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.brand__name span{ color:var(--teak-lite); }

/* En teléfonos angostos la marca + el botón no caben en la barra:
   se ajustan tamaño y holguras en lugar de dejar que desborde. */
@media (max-width:30rem){
  .masthead__inner{ gap:.75rem; }
  .brand{ gap:.55rem; }
  .brand__mark{ height:1.9rem; }
  .brand__name{ font-size:.8125rem; }
  .masthead .btn--sm{ padding:.6rem .8rem; gap:.5rem; }
}

.nav{ display:none; gap:2rem; align-items:center; }
@media (min-width:64rem){ .nav{ display:flex; } }
.nav a{
  font-family:var(--font-mono);
  font-size:.6875rem;
  letter-spacing:.16em;
  text-transform:uppercase;
  text-decoration:none;
  color:var(--steel);
  padding-block:.4rem;
  transition:color .2s var(--ease);
}
.nav a:hover,.nav a:focus-visible{ color:var(--bone); }

/* ---------- botones ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  gap:.65rem;
  font-family:var(--font-mono);
  font-size:.75rem;
  font-weight:500;
  letter-spacing:.12em;
  text-transform:uppercase;
  text-decoration:none;
  padding:.9rem 1.4rem;
  border:1px solid transparent;
  cursor:pointer;
  transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),transform .22s var(--ease);
}
.btn svg{ width:1.05em; height:1.05em; flex:none; }
.btn--wa{ background:var(--teak); color:#fff; }
.btn--wa:hover,.btn--wa:focus-visible{ background:var(--teak-lite); color:var(--ink); transform:translateY(-2px); }
.btn--ghost{ border-color:var(--graphite-3); color:var(--bone); }
.btn--ghost:hover,.btn--ghost:focus-visible{ border-color:var(--teak); color:var(--teak-lite); }
.band--light .btn--ghost{ border-color:#C9C9C2; color:var(--ink); }
.band--light .btn--ghost:hover{ border-color:var(--teak-deep); color:var(--teak-deep); }
.btn--sm{ padding:.65rem 1rem; font-size:.6875rem; }

:where(a,button,summary,input,textarea,select):focus-visible{
  outline:2px solid var(--teak-lite);
  outline-offset:3px;
}

/* ============================================================
   HERO — la puerta insignia en foto, presentada como una ficha de
   taller. La retícula milimetrada, la tipografía mono y la
   referencia de pieza mantienen el lenguaje de plano del sitio.
   ============================================================ */
.hero{
  position:relative;
  border-bottom:var(--rule);
  overflow:hidden;
}
/* Retícula de papel milimetrado, apagada, del lado del texto. */
.hero::before{
  content:'';
  position:absolute; inset:0; z-index:0;
  background-image:
    linear-gradient(to right, rgba(138,145,150,.055) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(138,145,150,.055) 1px, transparent 1px);
  background-size:2.5rem 2.5rem;
  mask-image:radial-gradient(110% 85% at 26% 45%, #000 18%, transparent 76%);
  -webkit-mask-image:radial-gradient(110% 85% at 26% 45%, #000 18%, transparent 76%);
  pointer-events:none;
}

.hero__grid{ position:relative; z-index:1; display:grid; }
@media (min-width:62rem){
  .hero__grid{
    grid-template-columns:minmax(0,1fr) minmax(0,.78fr);
    align-items:stretch;
    min-height:min(88vh,48rem);
  }
}

/* El texto se alinea con el contenedor del resto de la página;
   la foto sigue hasta el borde de la ventana. */
.hero__copy{
  display:flex;
  flex-direction:column;
  justify-content:center;
  padding:clamp(2.75rem,6vw,4.5rem) var(--gutter) clamp(2.75rem,5vw,3.5rem);
}
@media (min-width:62rem){
  .hero__copy{
    padding-left:max(var(--gutter), calc(50vw - var(--maxw)/2 + var(--gutter)));
    padding-right:clamp(2.5rem,4vw,4rem);
  }
}

.hero h1{
  font-size:clamp(2.3rem,4.6vw,4.1rem);
  font-variation-settings:'wdth' 122,'wght' 850;
  margin-bottom:1.5rem;
}
.hero h1 em{ font-style:normal; color:var(--teak-lite); }

.hero__rule{ width:4.5rem; height:2px; background:var(--teak); border:0; margin:0 0 1.75rem; }

.hero__lede{
  color:var(--steel);
  font-size:clamp(1.0625rem,1rem + .35vw,1.1875rem);
  max-width:38ch;
  margin-bottom:2rem;
}
.hero__lede strong{ color:var(--bone); font-weight:600; }

.hero__actions{ display:flex; flex-wrap:wrap; gap:.75rem; align-items:center; }

.hero__note{
  margin-top:1.5rem;
  display:flex; align-items:center; gap:.6rem;
  color:var(--steel);
  font-family:var(--font-mono); font-size:.6875rem;
  letter-spacing:.1em; text-transform:uppercase;
}
.hero__note svg{ width:.95rem; height:.95rem; color:var(--teak-lite); flex:none; }

.hero__social{ margin-top:2.25rem; display:flex; align-items:center; gap:.9rem; flex-wrap:wrap; }
.hero__social .mono{ color:var(--steel); }
.hero__social a{
  display:inline-flex; width:2.4rem; height:2.4rem;
  align-items:center; justify-content:center;
  border:var(--rule); color:var(--steel);
  transition:color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.hero__social a:hover,.hero__social a:focus-visible{ color:var(--teak-lite); border-color:var(--teak); transform:translateY(-2px); }
.hero__social svg{ width:1.05rem; height:1.05rem; }

/* --- panel de la foto --- */
.hero__shot{ position:relative; overflow:hidden; margin:0; aspect-ratio:3/4; }
@media (min-width:62rem){ .hero__shot{ aspect-ratio:auto; } }
.hero__shot img{
  position:absolute; inset:0;
  width:100%; height:100%;
  object-fit:cover;
  object-position:54% 46%;
}
/* La foto es de fachada clara y la página es grafito: estos degradados
   la funden con la columna de texto en lugar de dejar un corte duro. */
.hero__shot::after{
  content:'';
  position:absolute; inset:0; z-index:1;
  pointer-events:none;
  background:
    linear-gradient(to bottom, var(--graphite) 0%, rgba(28,31,33,.2) 14%, rgba(28,31,33,0) 38%, rgba(28,31,33,.86) 100%);
}
@media (min-width:62rem){
  .hero__shot::after{
    background:
      linear-gradient(to top, rgba(28,31,33,.94) 0%, rgba(28,31,33,.45) 24%, transparent 56%),
      linear-gradient(to right, var(--graphite) 0%, rgba(28,31,33,.4) 12%, rgba(28,31,33,0) 40%);
  }
}

/* Ficha de la pieza, como el cajetín de un plano. Va arriba a la
   derecha: abajo a la izquierda está la marca de agua de la foto y
   abajo a la derecha el botón flotante de WhatsApp. Lleva fondo
   propio para no depender del brillo de la fachada. */
.hero__slug{
  position:absolute; z-index:2;
  right:clamp(1rem,2.5vw,2rem);
  top:clamp(1rem,2.5vw,2rem);
  border-right:2px solid var(--teak);
  background:linear-gradient(to left, rgba(18,20,22,.88), rgba(18,20,22,.62));
  -webkit-backdrop-filter:blur(3px);
  backdrop-filter:blur(3px);
  padding:.8rem 1rem .85rem 1.15rem;
  display:grid; gap:.4rem;
  text-align:right;
  max-width:min(17rem,66%);
}
.hero__slug b{ color:var(--teak-lite); font-weight:500; }
.hero__slug span{ color:#A9B0B5; }

/* --- entrada --- */
@keyframes heroIn{ from{ opacity:0; transform:translateY(14px); } to{ opacity:1; transform:none; } }
@keyframes shotIn{ from{ opacity:0; transform:scale(1.07); } to{ opacity:1; transform:none; } }
.hero__copy > *{ animation:heroIn .75s var(--ease) backwards; }
.hero__copy > *:nth-child(1){ animation-delay:.05s }
.hero__copy > *:nth-child(2){ animation-delay:.13s }
.hero__copy > *:nth-child(3){ animation-delay:.19s }
.hero__copy > *:nth-child(4){ animation-delay:.25s }
.hero__copy > *:nth-child(5){ animation-delay:.31s }
.hero__copy > *:nth-child(6){ animation-delay:.37s }
.hero__copy > *:nth-child(7){ animation-delay:.43s }
.hero__shot img{ animation:shotIn 1.15s var(--ease) backwards; }

/* ============================================================
   FRANJA DE DATOS — prueba social en lenguaje de ficha técnica,
   no en tarjetas con degradado.
   ============================================================ */
.specs{
  border-bottom:var(--rule);
  background:var(--graphite-2);
}
.specs__grid{
  max-width:var(--maxw);
  margin-inline:auto;
  padding-inline:var(--gutter);
  display:grid;
  grid-template-columns:repeat(2,1fr);
}
@media (min-width:52rem){ .specs__grid{ grid-template-columns:repeat(4,1fr); } }
.spec{
  padding:1.75rem 1.5rem;
  border-right:var(--rule);
  border-bottom:var(--rule);
}
.spec:nth-child(odd){ padding-left:0; }
.spec:nth-child(even){ border-right:0; padding-right:0; }
.spec:nth-last-child(-n+2){ border-bottom:0; }
@media (min-width:52rem){
  .spec{ border-bottom:0; padding-left:1.5rem; padding-right:1.5rem; border-right:var(--rule); }
  .spec:first-child{ padding-left:0; }
  .spec:last-child{ border-right:0; padding-right:0; }
}
.spec__n{
  font-family:var(--font-mono);
  font-size:clamp(1.5rem,3.4vw,2.1rem);
  font-weight:700;
  letter-spacing:-.03em;
  color:var(--bone);
  line-height:1;
  display:block;
  font-variant-numeric:tabular-nums;
}
.spec__l{
  display:block;
  margin-top:.6rem;
  color:var(--steel);
  font-family:var(--font-mono);
  font-size:.625rem;
  letter-spacing:.16em;
  text-transform:uppercase;
}

/* ============================================================
   CATÁLOGO DE PUERTAS — el producto estrella
   ============================================================ */
.doors{
  display:grid;
  gap:1px;
  background:var(--graphite-3);
  border:var(--rule);
}
@media (min-width:40rem){ .doors{ grid-template-columns:repeat(2,1fr); } }
@media (min-width:64rem){ .doors{ grid-template-columns:repeat(4,1fr); } }

.door{
  background:var(--graphite);
  display:flex;
  flex-direction:column;
  text-decoration:none;
  color:inherit;
  cursor:pointer;
  transition:background .3s var(--ease);
}
.door:focus-visible{ outline:2px solid var(--teak-lite); outline-offset:-2px; }
.door:hover{ background:var(--graphite-2); }

/* Las 71 fotos del catálogo son casi cuadradas (entre 1.00 y 1.08).
   Con el marco vertical 4/5 se recortaba hasta un 26 % del ancho y las
   puertas salían apretadas en el teléfono; en cuadrado se pierde 7 %. */
.door__plate{
  aspect-ratio:1/1;
  position:relative;
  overflow:hidden;
  background:var(--graphite-2);
}
.door__plate img{
  width:100%; height:100%;
  object-fit:cover;
  transition:transform .7s var(--ease);
}
.door:hover .door__plate img{ transform:scale(1.045); }

/* Las fotos vienen de fachadas claras y la página es grafito. Este velo
   inferior las asienta en la tarjeta en lugar de dejarlas flotando, y de
   paso da fondo a la referencia de pieza. */
.door__plate::after{
  content:'';
  position:absolute; inset:0;
  background:linear-gradient(to top, rgba(28,31,33,.75), rgba(28,31,33,.12) 34%, transparent 62%);
  box-shadow:inset 0 0 0 1px rgba(247,247,245,.07);
  pointer-events:none;
}
/* A la derecha: la marca de agua de las fotos vive abajo a la izquierda. */
.door__tag{
  position:absolute; right:1.25rem; bottom:.95rem; z-index:1;
  font-family:var(--font-mono);
  font-size:.625rem; font-weight:500;
  letter-spacing:.18em; text-transform:uppercase;
  color:var(--teak-lite);
}
/* La tarjeta ocupa todo el alto de su fila y la llamada se ancla abajo,
   para que quede alineada aunque los títulos usen una o dos líneas. */
.door__body{ padding:1.35rem 1.5rem 1.65rem; display:flex; flex-direction:column; flex:1; }
.door h3{ font-size:1.0625rem; font-variation-settings:'wdth' 108,'wght' 700; letter-spacing:0; }
.door__desc{ color:var(--steel); font-size:.9375rem; margin-top:.55rem; }


/* ============================================================
   SERVICIOS — 7 líneas de trabajo
   ============================================================ */
.svcs{ display:grid; gap:1px; background:#D2D2CC; border:var(--rule-light); }
@media (min-width:44rem){ .svcs{ grid-template-columns:repeat(2,1fr); } }
@media (min-width:68rem){ .svcs{ grid-template-columns:repeat(3,1fr); } }

.svc{
  background:var(--drywall);
  padding:2rem 1.75rem;
  display:flex;
  flex-direction:column;
  gap:1.1rem;
  transition:background .3s var(--ease);
}
.svc:hover{ background:#F5F5F2; }
.svc__icon{ width:3.25rem; height:3.25rem; color:var(--teak-deep); }
.svc h3{ font-size:1.125rem; font-variation-settings:'wdth' 108,'wght' 700; letter-spacing:0; }
.svc p{ color:#4A5054; font-size:.9375rem; }
.svc__tags{ margin-top:auto; padding-top:.75rem; display:flex; flex-wrap:wrap; gap:.4rem; }
.tag{
  font-family:var(--font-mono);
  font-size:.625rem;
  letter-spacing:.08em;
  text-transform:uppercase;
  padding:.3rem .55rem;
  border:1px solid #C9C9C2;
  color:#5A6064;
  white-space:nowrap;
}
/* Son 7 servicios: en 2 y 3 columnas la última fila quedaría coja y se
   vería la franja del fondo. El de mayor escala (naves industriales)
   ocupa la fila completa y pasa a disposición horizontal. */
.svc--wide{ grid-column:1/-1; }
@media (min-width:44rem){
  .svc--wide{
    display:grid;
    grid-template-columns:auto minmax(0,1fr) auto;
    align-items:center;
    column-gap:2.5rem;
    row-gap:.5rem;
  }
  .svc--wide .svc__icon{ grid-row:1/3; width:4rem; height:4rem; }
  .svc--wide h3{ align-self:end; }
  .svc--wide p{ grid-column:2; align-self:start; }
  .svc--wide .svc__tags{ grid-column:3; grid-row:1/3; padding-top:0; justify-content:flex-end; max-width:14rem; }
}

/* ============================================================
   PORTAFOLIO
   ============================================================ */
.folio{ display:grid; gap:1px; background:var(--graphite-3); border:var(--rule); }
@media (min-width:38rem){ .folio{ grid-template-columns:repeat(2,1fr); } }
@media (min-width:62rem){ .folio{ grid-template-columns:repeat(4,1fr); } }

.work{
  background:var(--graphite);
  padding:1.5rem;
  display:flex;
  flex-direction:column;
  gap:1rem;
  min-height:100%;
  transition:background .3s var(--ease);
}
.work:hover{ background:var(--graphite-2); }
.work__plate{
  aspect-ratio:1/1;
  border:1px dashed var(--graphite-3);
  display:flex;
  align-items:center;
  justify-content:center;
  padding:1rem;
  position:relative;
  overflow:hidden;
}
/* Marco listo para fotografía real: sustituir el <svg> por <img>. */
.work__plate img{ width:100%; height:100%; object-fit:cover; }
.work__plate svg{ width:100%; height:100%; color:var(--steel); }
.work h3{
  font-size:.9375rem;
  font-variation-settings:'wdth' 104,'wght' 700;
  letter-spacing:0;
  line-height:1.2;
}
.work__foot{ margin-top:auto; padding-top:.85rem; border-top:var(--rule); display:flex; justify-content:space-between; align-items:baseline; gap:.75rem; }
.work__cat{ color:var(--steel); }
.work__stat{ color:var(--teak-lite); font-variant-numeric:tabular-nums; white-space:nowrap; }
.work--pin{ background:var(--graphite-2); }
.work--pin .work__plate{ border-style:solid; border-color:var(--teak); }

.folio-note{
  margin-top:1.25rem;
  color:var(--steel);
  font-size:.8125rem;
  display:flex;
  gap:.6rem;
  align-items:flex-start;
}
.folio-note svg{ width:1rem; height:1rem; flex:none; margin-top:.15rem; color:var(--teak-lite); }

/* ============================================================
   PROCESO — numerado porque sí es una secuencia real
   ============================================================ */
.steps{ display:grid; gap:1px; background:#D2D2CC; border:var(--rule-light); counter-reset:step; }
@media (min-width:44rem){ .steps{ grid-template-columns:repeat(2,1fr); } }
@media (min-width:68rem){ .steps{ grid-template-columns:repeat(4,1fr); } }
.step{ background:var(--drywall); padding:2rem 1.75rem; counter-increment:step; }
.step::before{
  content:counter(step,decimal-leading-zero);
  font-family:var(--font-mono);
  font-size:.75rem;
  font-weight:700;
  letter-spacing:.1em;
  color:var(--teak-deep);
  display:block;
  padding-bottom:1.5rem;
  margin-bottom:1.25rem;
  border-bottom:1px solid #C9C9C2;
}
.step h3{ font-size:1.0625rem; font-variation-settings:'wdth' 106,'wght' 700; letter-spacing:0; margin-bottom:.6rem; }
.step p{ color:#4A5054; font-size:.9375rem; }

/* ============================================================
   COBERTURA
   ============================================================ */
.reach{ display:grid; gap:clamp(2.5rem,5vw,4rem); }
@media (min-width:60rem){ .reach{ grid-template-columns:minmax(0,1fr) minmax(0,1.1fr); align-items:center; } }
.reach__list{ list-style:none; margin:2rem 0 0; padding:0; border-top:var(--rule); }
.reach__list li{
  display:flex;
  justify-content:space-between;
  gap:1rem;
  align-items:baseline;
  padding:.9rem 0;
  border-bottom:var(--rule);
}
.reach__list b{ font-weight:500; }
.reach__list span{ color:var(--steel); }
.reach__map{ border:var(--rule); background:var(--graphite-2); padding:clamp(1.25rem,3vw,2rem); }
.reach__map svg{ width:100%; height:auto; }

/* ============================================================
   CONTACTO
   ============================================================ */
.contact{ background:var(--graphite-2); border-top:var(--rule); }
.contact__grid{ display:grid; gap:clamp(2.5rem,5vw,4rem); }
@media (min-width:60rem){ .contact__grid{ grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr); } }
.contact h2{ font-size:clamp(2.25rem,6.5vw,4.5rem); margin-bottom:1.5rem; }

/* En pantallas muy angostas una sola palabra en display ("PROYECTO",
   "DISEÑAMOS") mide más que el ancho útil y estira toda la página.
   El mínimo de la escala tipográfica baja solo en ese tramo. */
@media (max-width:23rem){
  .contact h2,
  .section-head h2,
  .cat-head h1{ font-size:1.85rem; }
}
.contact__lede{ color:var(--steel); max-width:40ch; margin-bottom:2rem; }

.warn{
  display:flex;
  gap:.9rem;
  align-items:flex-start;
  border-left:3px solid var(--teak);
  background:rgba(169,102,47,.09);
  padding:1rem 1.25rem;
  margin-bottom:2rem;
}
.warn svg{ width:1.15rem; height:1.15rem; flex:none; color:var(--teak-lite); margin-top:.15rem; }
.warn p{ font-size:.9375rem; color:var(--bone); }
.warn strong{ color:var(--teak-lite); }

.card{ border:var(--rule); background:var(--graphite); }
.card__row{ display:flex; justify-content:space-between; gap:1rem; align-items:center; padding:1.15rem 1.5rem; border-bottom:var(--rule); }
.card__row:last-child{ border-bottom:0; }
.card__row span{ color:var(--steel); flex:none; }
.card__row b{ font-weight:500; text-align:right; }
.card__row a{ text-decoration:none; }
.card__row a:hover{ color:var(--teak-lite); }

/* "@tr_construccion_sv" es una sola palabra de 19 caracteres: en la
   misma línea que su etiqueta no cabe y estira la página. Debajo de
   26rem la fila se apila. */
@media (max-width:26rem){
  .card__row{ flex-direction:column; align-items:flex-start; gap:.3rem; }
  .card__row b{ text-align:left; }
}
.card__row b{ overflow-wrap:anywhere; }

.checklist{ list-style:none; margin:0; padding:0; }
.checklist li{ display:flex; gap:.75rem; align-items:flex-start; padding:.55rem 0; color:var(--steel); font-size:.9375rem; }
.checklist svg{ width:1rem; height:1rem; flex:none; margin-top:.35rem; color:var(--teak); }

/* ============================================================
   FOOTER
   ============================================================ */
.foot{ border-top:var(--rule); padding-block:3rem; }
.foot__grid{ display:flex; flex-wrap:wrap; gap:2rem; justify-content:space-between; align-items:flex-start; }
.foot__links{ display:flex; flex-wrap:wrap; gap:1.5rem; }
.foot__links a{ color:var(--steel); text-decoration:none; transition:color .2s var(--ease); }
.foot__links a:hover{ color:var(--teak-lite); }
.foot__legal{ margin-top:2.5rem; padding-top:1.5rem; border-top:var(--rule); color:var(--steel); font-size:.8125rem; display:flex; flex-wrap:wrap; gap:.5rem 1.5rem; justify-content:space-between; }

/* ---------- botón flotante WhatsApp ---------- */
.fab{
  position:fixed;
  right:clamp(1rem,3vw,2rem);
  bottom:clamp(1rem,3vw,2rem);
  z-index:90;
  display:inline-flex;
  align-items:center;
  gap:.6rem;
  background:var(--teak);
  color:#fff;
  text-decoration:none;
  padding:.85rem 1.15rem;
  box-shadow:0 8px 30px rgba(0,0,0,.45);
  font-family:var(--font-mono);
  font-size:.6875rem;
  letter-spacing:.12em;
  text-transform:uppercase;
  transition:background .22s var(--ease),transform .22s var(--ease);
}
.fab:hover,.fab:focus-visible{ background:var(--teak-lite); color:var(--ink); transform:translateY(-2px); }
.fab svg{ width:1.15rem; height:1.15rem; flex:none; }
.fab span{ display:none; }
@media (min-width:30rem){ .fab span{ display:inline; } }

/* ---------- revelado al hacer scroll ---------- */
.reveal{ opacity:0; transform:translateY(18px); transition:opacity .7s var(--ease),transform .7s var(--ease); }
.reveal.is-in{ opacity:1; transform:none; }

@media (prefers-reduced-motion:reduce){
  html{ scroll-behavior:auto; }
  *,*::before,*::after{ animation-duration:.001ms !important; animation-iteration-count:1 !important; transition-duration:.001ms !important; }
  .reveal{ opacity:1; transform:none; }
}
/* ============================================================
   DISTINTIVOS bajo el hero
   ============================================================ */
.values{ border-bottom:var(--rule); }
.values__grid{
  max-width:var(--maxw);
  margin-inline:auto;
  padding-inline:var(--gutter);
  display:grid; gap:1px;
  /* minmax(0,…) deja que la columna baje del ancho de la palabra más
     larga; con 1fr a secas, "PROFESIONALES" ensancha toda la página. */
  grid-template-columns:repeat(2,minmax(0,1fr));
}
@media (max-width:22rem){ .values__grid{ grid-template-columns:minmax(0,1fr); } }
@media (min-width:56rem){ .values__grid{ grid-template-columns:repeat(4,minmax(0,1fr)); } }
.value{
  background:var(--graphite);
  padding:2rem clamp(1rem,2.5vw,1.75rem);
  display:flex; flex-direction:column; gap:.8rem;
  position:relative;
}
/* Separadores dibujados, no fondo: así no aparecen franjas sueltas. */
.value + .value::before{
  content:''; position:absolute; left:-1px; top:1.25rem; bottom:1.25rem;
  width:1px; background:var(--graphite-3);
}
@media (max-width:55.999rem){
  .value:nth-child(odd)::before{ display:none; }
  .value:nth-child(n+3)::after{
    content:''; position:absolute; left:0; right:0; top:-1px; height:1px; background:var(--graphite-3);
  }
}
.value__icon{ width:2.5rem; height:2.5rem; color:var(--teak); }
.value h3{
  font-size:.8125rem;
  font-variation-settings:'wdth' 106,'wght' 700;
  letter-spacing:.05em;
  overflow-wrap:break-word;
}
.value p{ color:var(--steel); font-size:.875rem; line-height:1.55; }

/* --- llamada dentro de la tarjeta --- */
.door__cta{
  margin-top:auto; padding-top:.9rem;
  border-top:var(--rule);
  display:flex; align-items:center; gap:.5rem;
  color:var(--teak-lite);
  font-family:var(--font-mono); font-size:.625rem;
  letter-spacing:.14em; text-transform:uppercase;
}
.door__cta svg{ width:.9rem; height:.9rem; flex:none; }
.door__cta span{ display:inline-block; transition:transform .25s var(--ease); }
.door:hover .door__cta span{ transform:translateX(4px); }

.more{ margin-top:clamp(2.5rem,5vw,3.5rem); display:flex; justify-content:center; }

/* ============================================================
   PÁGINA DE CATÁLOGO
   ============================================================ */
.cat-head{ border-bottom:var(--rule); padding-block:clamp(2.75rem,6vw,4.5rem); }
.cat-head h1{ font-size:clamp(2.25rem,5.5vw,3.75rem); margin-bottom:1.25rem; }
.cat-head p{ color:var(--steel); max-width:52ch; }
.cat-nav{ display:flex; flex-wrap:wrap; gap:.5rem; margin-top:2rem; }
.cat-nav a{
  font-family:var(--font-mono); font-size:.6875rem;
  letter-spacing:.12em; text-transform:uppercase;
  text-decoration:none; color:var(--steel);
  border:var(--rule); padding:.55rem .85rem;
  transition:color .2s var(--ease),border-color .2s var(--ease);
}
.cat-nav a:hover,.cat-nav a:focus-visible{ color:var(--teak-lite); border-color:var(--teak); }
.cat-group{ padding-top:clamp(3rem,6vw,4.5rem); }
.cat-group__head{
  display:flex; flex-wrap:wrap; gap:.5rem 1.5rem;
  align-items:baseline; justify-content:space-between;
  margin-bottom:1.75rem;
}
.cat-group__head h2{ font-size:clamp(1.5rem,3.2vw,2.25rem); }
.cat-group__head span{ color:var(--steel); }
.cat-sub{
  margin:clamp(2rem,4vw,3rem) 0 1.25rem;
  padding-top:1rem; border-top:var(--rule);
  display:flex; flex-wrap:wrap; gap:.5rem 1rem;
  align-items:baseline; justify-content:space-between;
}
.cat-sub h3{ font-size:1.0625rem; font-variation-settings:'wdth' 108,'wght' 700; letter-spacing:0; }
.cat-sub span{ color:var(--steel); }
.cat-hint{
  display:flex; gap:.7rem; align-items:flex-start;
  border-left:3px solid var(--teak);
  background:rgba(169,102,47,.09);
  padding:.9rem 1.15rem; margin-top:2rem;
  color:var(--bone); font-size:.9375rem; max-width:46rem;
}
.cat-hint svg{ width:1.1rem; height:1.1rem; flex:none; margin-top:.2rem; color:var(--teak-lite); }

/* ============================================================
   DISEÑO ARQUITECTÓNICO — visor de giro del modelo 3D.
   El modelo se ve como una lámina iluminada sobre el banco de
   trabajo oscuro: mismo lenguaje de plano del resto del sitio.
   ============================================================ */
.model__grid{ display:grid; gap:clamp(2rem,5vw,3.5rem); align-items:center; }
@media (min-width:64rem){
  .model__grid{ grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr); gap:clamp(2.5rem,5vw,4.5rem); }
}
.model__copy p{ color:var(--steel); max-width:44ch; }
.model__copy .btn{ margin-top:2rem; }
.model__list{ list-style:none; margin:1.75rem 0 0; padding:0; border-top:var(--rule); }
.model__list li{
  display:flex; gap:.75rem; align-items:flex-start;
  padding:.7rem 0; border-bottom:var(--rule);
  color:var(--steel); font-size:.9375rem;
}
.model__list svg{ width:1rem; height:1rem; flex:none; margin-top:.3rem; color:var(--teak); }

.spin{
  position:relative;
  aspect-ratio:820/537;
  background:#B7BABE;
  border:var(--rule);
  overflow:hidden;
  cursor:grab;
  touch-action:pan-y;
  user-select:none; -webkit-user-select:none;
}
.spin:active{ cursor:grabbing; }
.spin:focus-visible{ outline:2px solid var(--teak-lite); outline-offset:3px; }
.spin img{
  width:100%; height:100%;
  object-fit:cover; display:block;
  pointer-events:none; -webkit-user-drag:none;
}
.spin__badge{
  position:absolute; top:1rem; left:1rem; z-index:2;
  background:rgba(18,20,22,.86); color:var(--teak-lite);
  padding:.45rem .7rem;
  display:flex; align-items:center; gap:.45rem;
}
.spin__badge svg{ width:.9rem; height:.9rem; }
.spin__hint{
  position:absolute; left:1rem; bottom:1rem; z-index:2;
  background:rgba(18,20,22,.86); color:var(--bone);
  padding:.45rem .7rem;
  transition:opacity .4s var(--ease);
}
.spin.is-live .spin__hint{ opacity:0; }
.spin__nav{
  position:absolute; right:1rem; bottom:1rem; z-index:2;
  display:flex; gap:.4rem;
}
.spin__nav button{
  width:2.4rem; height:2.4rem;
  display:inline-flex; align-items:center; justify-content:center;
  background:rgba(18,20,22,.86);
  border:1px solid rgba(247,247,245,.14);
  color:var(--bone); cursor:pointer;
  transition:color .2s var(--ease),border-color .2s var(--ease);
}
.spin__nav button:hover{ color:var(--teak-lite); border-color:var(--teak); }
.spin__nav svg{ width:1rem; height:1rem; }
.spin__slug{
  margin-top:1rem; display:flex; flex-wrap:wrap;
  gap:.4rem 1.25rem; color:var(--steel);
  border-top:var(--rule); padding-top:.85rem;
}
.spin__slug b{ color:var(--teak-lite); font-weight:500; }

/* En teléfono el visor manda: va primero, ocupa el ancho completo de la
   pantalla y los botones crecen al tamaño mínimo cómodo para el dedo. */
@media (max-width:63.999rem){
  .model__grid > figure{ order:-1; }
  .spin{
    margin-inline:calc(var(--gutter) * -1);
    border-inline:0;
  }
  .spin__nav button{ width:2.75rem; height:2.75rem; }
}

/* ============================================================
   PLANOS POR NIVEL — el dibujo va en negativo (trazo hueso sobre
   grafito) para que sea el mismo plano, en la paleta del sitio.
   ============================================================ */
.planos{
  margin-top:clamp(3rem,6vw,4.5rem);
  border-top:var(--rule);
  padding-top:clamp(2rem,4vw,3rem);
}
.planos__head{
  display:flex; flex-wrap:wrap; gap:.5rem 1.5rem;
  align-items:baseline; justify-content:space-between;
  margin-bottom:1.75rem;
}
.planos__head h3{ font-size:clamp(1.25rem,2.6vw,1.75rem); }
.planos__head span{ color:var(--steel); }

.planos__grid{ display:grid; gap:clamp(1.5rem,4vw,3rem); align-items:start; }
@media (min-width:64rem){
  .planos__grid{ grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr); }
}

.planos__tabs{ display:flex; flex-wrap:wrap; gap:.4rem; margin-bottom:1.5rem; }
.planos__tabs button{
  font-family:var(--font-mono); font-size:.6875rem;
  letter-spacing:.12em; text-transform:uppercase;
  color:var(--steel); background:none;
  border:var(--rule); padding:.6rem .9rem;
  cursor:pointer;
  transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
}
.planos__tabs button:hover{ color:var(--bone); }
.planos__tabs button[aria-selected="true"]{
  color:var(--teak-lite);
  border-color:var(--teak);
  background:rgba(169,102,47,.12);
}

.planos__panel[hidden]{ display:none; }
.planos__npt{ color:var(--teak-lite); margin:0 0 1rem; }
.planos__list{ list-style:none; margin:0; padding:0; border-top:var(--rule); }
.planos__list li{
  display:flex; justify-content:space-between; gap:1rem; align-items:baseline;
  padding:.6rem 0; border-bottom:var(--rule);
  color:var(--steel); font-size:.9375rem;
}
.planos__list li b{ color:var(--bone); font-weight:500; }
.planos__note{ margin-top:1.5rem; color:var(--steel); font-size:.875rem; }
.planos__note a{ color:var(--teak-lite); }

.planos__sheet{
  margin:0;
  background:var(--graphite-2);
  border:var(--rule);
  padding:clamp(.75rem,2vw,1.25rem);
  display:flex; justify-content:center;
}
.planos__sheet img{
  max-height:min(72vh,660px);
  width:auto; max-width:100%;
  object-fit:contain;
}
/* En teléfono el plano ocupa todo el ancho disponible: a 215 px de
   ancho los rótulos de ambiente no se leían. Y sube por encima de la
   lista, para quedar pegado a las pestañas que lo controlan. */
@media (max-width:63.999rem){
  .planos__sheet{ order:-1; }
  /* height:auto es obligatorio: sin él manda el atributo height del
     HTML y el plano sale estirado. */
  .planos__sheet img{ max-height:none; width:100%; height:auto; }
}

/* ============================================================
   GALERÍA DE DISEÑOS — mosaico por columnas: cada imagen conserva
   su proporción en vez de recortarse a un cuadro fijo.
   ============================================================ */
.gal{ columns:1; column-gap:1px; background:var(--graphite-3); border:var(--rule); }
@media (min-width:34rem){ .gal{ columns:2; } }
@media (min-width:60rem){ .gal{ columns:3; } }
.gal__item{
  break-inside:avoid;
  margin:0;
  background:var(--graphite);
  padding:1px 1px 0;
  display:block; width:100%;
  border:0; text-align:left;
  color:inherit; font:inherit;
  cursor:zoom-in;
}
.gal__shot{ position:relative; overflow:hidden; display:block; }
.gal__shot img{ width:100%; height:auto; display:block; transition:transform .7s var(--ease); }
.gal__item:hover .gal__shot img{ transform:scale(1.04); }
.gal__shot::after{
  content:''; position:absolute; inset:0; pointer-events:none;
  background:linear-gradient(to top, rgba(28,31,33,.55), transparent 42%);
  box-shadow:inset 0 0 0 1px rgba(247,247,245,.06);
}
.gal__cap{ padding:1rem 1.25rem 1.4rem; }
/* Van como <span>: dentro de un <button> solo cabe contenido de
   frase, y un <h3> o un <p> ahí es marcado inválido. */
.gal__t{
  display:block;
  font-family:var(--font-display);
  font-variation-settings:'wdth' 106,'wght' 700;
  font-size:1rem; text-transform:uppercase; letter-spacing:0; line-height:1.1;
}
.gal__d{ display:block; color:var(--steel); font-size:.9rem; margin-top:.4rem; line-height:1.5; }
.gal__item:focus-visible{ outline:2px solid var(--teak-lite); outline-offset:-2px; }

/* --- visor a pantalla completa --- */
.lb[hidden]{ display:none; }
.lb{
  position:fixed; inset:0; z-index:200;
  background:rgba(16,18,20,.96);
  -webkit-backdrop-filter:blur(6px); backdrop-filter:blur(6px);
  display:flex; align-items:center; justify-content:center;
  padding:clamp(1rem,4vw,3rem);
}
.lb__fig{ margin:0; max-width:100%; max-height:100%; display:flex; flex-direction:column; gap:1rem; align-items:center; }
.lb__fig img{ max-width:100%; max-height:78vh; width:auto; height:auto; object-fit:contain; }
.lb__cap{ text-align:center; color:var(--steel); }
.lb__cap b{ display:block; color:var(--bone); font-family:var(--font-display);
  font-variation-settings:'wdth' 106,'wght' 700; text-transform:uppercase; letter-spacing:0; margin-bottom:.3rem; }
.lb button{
  position:absolute; background:rgba(36,40,43,.9);
  border:1px solid rgba(247,247,245,.16); color:var(--bone);
  width:3rem; height:3rem; display:inline-flex; align-items:center; justify-content:center;
  cursor:pointer; transition:color .2s var(--ease),border-color .2s var(--ease);
}
.lb button:hover{ color:var(--teak-lite); border-color:var(--teak); }
.lb button svg{ width:1.15rem; height:1.15rem; }
.lb__prev{ left:clamp(.5rem,2vw,2rem); top:50%; transform:translateY(-50%); }
.lb__next{ right:clamp(.5rem,2vw,2rem); top:50%; transform:translateY(-50%); }
.lb__close{ top:clamp(.5rem,2vw,1.5rem); right:clamp(.5rem,2vw,1.5rem); }

/* El logo del pie va grande: a este tamaño se leen la cinta
   "CONSTRUCCIÓN" y el usuario, cosa que en la barra no pasa. */
.foot__logo{ display:inline-block; }
.foot__logo img{ width:clamp(9rem,20vw,12.5rem); height:auto; }