/* ---------- fuentes (servidas por la propia web, licencia OFL) ---------- */
@font-face {
  font-family: "Geist";
  src: url("fonts/geist-latin-wght-normal.woff2") format("woff2");
  font-weight: 100 900;
  font-display: swap;
}
@font-face {
  font-family: "Instrument Serif";
  src: url("fonts/instrument-serif-latin-400-normal.woff2") format("woff2");
  font-weight: 400;
  font-display: swap;
}
@font-face {
  font-family: "Instrument Serif";
  src: url("fonts/instrument-serif-latin-400-italic.woff2") format("woff2");
  font-weight: 400;
  font-style: italic;
  font-display: swap;
}
@font-face {
  font-family: "Josefin Sans";
  src: url("fonts/josefin-sans-latin-wght-normal.woff2") format("woff2");
  font-weight: 100 700;
  font-display: swap;
}

:root {
  --oliva: #434b2f;
  --oliva-osc: #30361f;
  --arena: #ebdcc9;
  --arena-clara: #f5eee4;
  --papel: #fbf8f3;
  --tinta: #1f2217;
  --tinta-suave: #5f6352;
  --lila: #c0abe8;
  --lila-claro: #d9ccf3;
  --linea: rgba(31, 34, 23, 0.14);
  --ancho: 1320px;
  --gutter: clamp(16px, 4.5vw, 64px);
  --radio: 6px;
  --serif: "Instrument Serif", Georgia, "Times New Roman", serif;
  --sans: "Geist", system-ui, -apple-system, "Segoe UI", sans-serif;
  --logo: "Josefin Sans", var(--sans);
  --suave: cubic-bezier(.2, .7, .2, 1);
}

*, *::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: 400 clamp(16px, .35vw + 14.5px, 18px)/1.6 var(--sans);
  font-feature-settings: "ss01";
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; }
figure { margin: 0; }
ul, ol, dl, dd { list-style: none; margin: 0; padding: 0; }
h1, h2, h3 { font-family: var(--serif); font-weight: 400; line-height: 1.02; margin: 0; letter-spacing: -0.01em; }
em { font-family: var(--serif); font-style: italic; }
:focus-visible { outline: 2px solid var(--lila); outline-offset: 3px; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.saltar { position: absolute; left: -999px; top: 8px; z-index: 100; background: var(--lila); padding: 8px 14px; }
.saltar:focus { left: 8px; }

/* ---------- botones ---------- */
.botones { display: flex; flex-wrap: wrap; gap: 12px; }
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 24px; border-radius: 999px;
  font: 500 14px/1 var(--sans); letter-spacing: .06em; text-transform: uppercase; text-decoration: none;
  border: 1px solid transparent; transition: background .25s, color .25s, border-color .25s, transform .25s var(--suave);
  white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }
.btn-lila { background: var(--lila); color: var(--tinta); }
.btn-lila:hover { background: var(--lila-claro); }
.btn-claro { color: #fff; border-color: rgba(255, 255, 255, .75); background: rgba(255, 255, 255, .08); backdrop-filter: blur(6px); }
.btn-claro:hover { background: #fff; color: var(--tinta); }
.btn-linea { border-color: currentColor; }
.btn-mail { text-transform: none; letter-spacing: .01em; font-size: 15px; }
.btn-linea:hover { background: var(--tinta); color: var(--papel); border-color: var(--tinta); }
.flecha { width: 15px; height: 15px; fill: none; stroke: currentColor; stroke-width: 1.7; transition: transform .25s var(--suave); }
.btn:hover .flecha { transform: translate(2px, -2px); }

/* ---------- cabecera ---------- */
.cab {
  position: fixed; top: 0; left: 0; width: 100%; z-index: 50;
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
  padding: 14px var(--gutter);
  background: rgba(251, 248, 243, .9); backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--linea);
  transition: background .35s, border-color .35s, color .35s;
}
.home .cab:not(.solida) { background: transparent; border-color: transparent; color: #fff; backdrop-filter: none; }
.logo { display: flex; flex-direction: column; text-decoration: none; font-family: var(--logo); line-height: 1; }
.logo span { font-size: 25px; font-weight: 300; letter-spacing: .32em; }
.logo small { font-size: 8px; letter-spacing: .52em; margin-top: 4px; }
.menu { display: flex; align-items: center; gap: 32px; }
.menu ul { display: flex; gap: 28px; }
.menu ul a { text-decoration: none; font-size: 14px; letter-spacing: .02em; position: relative; }
.menu ul a::after { content: ""; position: absolute; left: 0; right: 0; bottom: -4px; height: 1px; background: currentColor; transform: scaleX(0); transform-origin: left; transition: transform .3s var(--suave); }
.menu ul a:hover::after { transform: scaleX(1); }
.menu .btn { padding: 11px 20px; }
.menu-btn { display: none; }
.cab-der { display: flex; align-items: center; gap: 18px; }
.solo-movil { display: none; }

/* iconos */
.ig, .globo { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 1.5; flex: none; }
.ig circle:last-child { fill: currentColor; }
.ig-link { display: grid; place-items: center; width: 40px; height: 40px; border-radius: 50%; transition: background .2s; }
.ig-link:hover { background: rgba(127, 127, 127, .15); }
.btn .ig { width: 18px; height: 18px; }
.con-icono { display: inline-flex; align-items: center; gap: 8px; }
.con-icono .ig { width: 17px; height: 17px; }

/* selector de idioma */
.idioma { position: relative; }
.idioma summary {
  list-style: none; cursor: pointer; display: flex; align-items: center; gap: 6px;
  padding: 9px 12px; border-radius: 999px; border: 1px solid currentColor; font: 500 13px/1 var(--sans); letter-spacing: .06em;
  opacity: .9; transition: background .2s;
}
.idioma summary::-webkit-details-marker { display: none; }
.idioma summary:hover { background: rgba(127, 127, 127, .15); }
.idioma summary .globo { width: 16px; height: 16px; }
.idioma ul {
  position: absolute; right: 0; top: calc(100% + 10px); min-width: 190px; padding: 8px;
  background: var(--papel); color: var(--tinta); border: 1px solid var(--linea); border-radius: 12px;
  box-shadow: 0 18px 40px rgba(31, 34, 23, .16);
}
.idioma a { display: flex; gap: 12px; align-items: baseline; padding: 10px 12px; border-radius: 8px; text-decoration: none; font-size: 15px; }
.idioma a b { font-weight: 500; font-size: 12px; letter-spacing: .08em; color: var(--tinta-suave); width: 22px; }
.idioma a:hover { background: var(--arena-clara); }
.idioma a[aria-current] { background: var(--arena-clara); }
.idioma a[aria-current]::after { content: "✓"; margin-left: auto; color: var(--oliva); }

@media (max-width: 960px) {
  .menu-btn {
    display: grid; gap: 6px; place-content: center; width: 44px; height: 44px;
    background: none; border: 0; color: inherit; cursor: pointer; padding: 0;
  }
  .menu-btn i { display: block; width: 26px; height: 1.5px; background: currentColor; transition: transform .25s; }
  .menu-btn[aria-expanded="true"] i:first-of-type { transform: translateY(3.75px) rotate(45deg); }
  .menu-btn[aria-expanded="true"] i:last-of-type { transform: translateY(-3.75px) rotate(-45deg); }
  .menu {
    position: fixed; top: 72px; left: 0; width: 100%; flex-direction: column; align-items: stretch; gap: 0;
    background: var(--papel); color: var(--tinta); padding: 8px var(--gutter) 24px;
    border-bottom: 1px solid var(--linea);
    transform: translateY(-8px); opacity: 0; visibility: hidden; transition: opacity .2s, transform .2s, visibility .2s;
  }
  .menu.abierto { opacity: 1; transform: none; visibility: visible; }
  .menu ul { flex-direction: column; gap: 0; }
  .menu ul a { display: block; padding: 14px 0; border-bottom: 1px solid var(--linea); font: 400 26px/1.1 var(--serif); }
  .menu ul a::after { display: none; }
  .menu .btn { margin-top: 20px; justify-content: center; }
  .menu .ig-link { display: none; }
  .solo-movil { display: block; }
  .cab-der { gap: 6px; }
  .idioma summary { border-color: transparent; padding: 9px 8px; }
  .home .cab.menu-abierto { background: var(--papel); color: var(--tinta); }
}

/* ---------- hero ---------- */
.hero { position: relative; min-height: 100svh; display: grid; align-items: end; color: #fff; overflow: hidden; background: var(--oliva-osc); }
.hero-chico { min-height: 78svh; }
.hero-img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; animation: acercar 22s var(--suave) both; }
@keyframes acercar { from { transform: scale(1.12); } to { transform: scale(1); } }
.hero::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(18, 20, 12, .45) 0%, rgba(18, 20, 12, 0) 30%, rgba(18, 20, 12, .25) 55%, rgba(18, 20, 12, .78) 100%); }
.hero-txt { position: relative; z-index: 1; width: 100%; max-width: var(--ancho); margin: 0 auto; padding: 140px var(--gutter) clamp(48px, 10vh, 112px); }
.hero h1 { font-size: clamp(46px, 8vw, 128px); max-width: 13ch; margin-bottom: 24px; }
.hero-sub { max-width: 44ch; margin: 0 0 36px; font-size: clamp(17px, 1.3vw, 20px); color: rgba(255, 255, 255, .88); }
.eyebrow { font-size: 13px; letter-spacing: .18em; text-transform: uppercase; margin: 0 0 18px; color: rgba(255, 255, 255, .85); }
.eyebrow a { text-decoration: none; border-bottom: 1px solid rgba(255, 255, 255, .5); }
.hero-txt > * { animation: subir 1.1s var(--suave) both; }
.hero-txt > *:nth-child(2) { animation-delay: .12s; }
.hero-txt > *:nth-child(3) { animation-delay: .24s; }
.hero-txt > *:nth-child(4) { animation-delay: .36s; }
@keyframes subir { from { opacity: 0; transform: translateY(26px); } to { opacity: 1; transform: none; } }

/* ---------- secciones ---------- */
.seccion { max-width: var(--ancho); margin: 0 auto; padding: clamp(80px, 11vw, 160px) var(--gutter); }
.oliva, .arena { max-width: none; }
.oliva { background: var(--oliva); color: var(--arena); }
.arena { background: var(--arena-clara); }
.oliva > *, .arena > * { max-width: calc(var(--ancho) - 2 * var(--gutter)); margin-left: auto; margin-right: auto; }
.indice { font-size: 12.5px; letter-spacing: .18em; text-transform: uppercase; margin: 0 0 20px; color: var(--tinta-suave); }
.oliva .indice { color: var(--lila-claro); }
.titulo { font-size: clamp(40px, 5.6vw, 84px); margin-bottom: 36px; }
.intro { font: 400 clamp(22px, 2.2vw, 32px)/1.3 var(--serif); margin: 0 0 36px; }
.intro.chica { font-size: clamp(19px, 1.6vw, 24px); color: var(--tinta-suave); }
.centro { text-align: center; margin-top: 56px; }
.cab-seccion { display: flex; justify-content: space-between; align-items: end; gap: 24px 48px; flex-wrap: wrap; margin-bottom: 56px; }
.cab-seccion .titulo { margin-bottom: 0; max-width: 16ch; }
.estudio { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.5fr); gap: 32px 80px; align-items: start; }
@media (max-width: 860px) { .estudio { grid-template-columns: 1fr; } }

.pildoras { display: flex; flex-wrap: wrap; gap: 10px; }
.pildoras li { border: 1px solid currentColor; border-radius: 999px; padding: 7px 16px; font-size: 14px; opacity: .9; }
.num { font: 500 13px/1 var(--sans); letter-spacing: .08em; color: var(--tinta-suave); font-variant-numeric: tabular-nums; }
.oliva .num { color: var(--lila-claro); }

/* bio desplegable */
.bio { margin-top: 64px; border-top: 1px solid rgba(235, 220, 201, .3); }
.bio summary {
  list-style: none; cursor: pointer; padding: 24px 0; display: flex; justify-content: space-between; align-items: center;
  font: 400 clamp(24px, 2.4vw, 34px)/1.1 var(--serif);
}
.bio summary::-webkit-details-marker { display: none; }
.bio summary span { font: 300 30px/1 var(--sans); transition: transform .3s var(--suave); }
.bio[open] summary span { transform: rotate(45deg); }
.bio-cont { display: grid; grid-template-columns: minmax(0, 2fr) minmax(0, 3fr); gap: 56px; padding: 12px 0 8px; }
.bio-cont figure img { border-radius: var(--radio); aspect-ratio: 4 / 5; object-fit: cover; width: 100%; }
.bio-cont p { margin: 0 0 1.1em; }
@media (max-width: 800px) { .bio-cont { grid-template-columns: 1fr; gap: 28px; } .bio-cont figure { max-width: 360px; } }

/* franjas de foto a todo el ancho */
.banda { height: clamp(300px, 72vh, 820px); overflow: hidden; }
.banda img { width: 100%; height: 100%; object-fit: cover; }

/* servicios / bloques numerados */
.servicios li {
  display: grid; grid-template-columns: 64px minmax(0, 1fr) minmax(0, 1.1fr); gap: 12px 40px; align-items: baseline;
  padding: 34px 0; border-top: 1px solid var(--linea); transition: padding-left .35s var(--suave);
}
.servicios li:last-child { border-bottom: 1px solid var(--linea); }
.servicios li:hover { padding-left: 14px; }
.servicios h3 { font-size: clamp(28px, 3vw, 44px); }
.servicios p { margin: 0; color: var(--tinta-suave); }
@media (max-width: 760px) {
  .servicios li { grid-template-columns: 40px minmax(0, 1fr); }
  .servicios p { grid-column: 2; }
}

/* carrusel (proyectos y reseñas) */
.flechas { display: flex; gap: 10px; }
.flecha-btn {
  width: 54px; height: 54px; border-radius: 50%; border: 1px solid currentColor; background: none; color: inherit;
  font-size: 26px; line-height: 1; cursor: pointer; transition: background .2s, color .2s;
}
.flecha-btn:hover { background: var(--tinta); color: var(--papel); }
.oliva .flecha-btn:hover { background: var(--arena); color: var(--oliva); }
.carrusel {
  display: grid; grid-auto-flow: column; grid-auto-columns: clamp(280px, 36%, 480px); gap: clamp(16px, 2vw, 28px);
  overflow-x: auto; scroll-snap-type: x mandatory; scrollbar-width: none; padding-bottom: 6px;
}
.carrusel::-webkit-scrollbar { display: none; }
.carrusel > li { scroll-snap-align: start; }
@media (max-width: 700px) { .carrusel { grid-auto-columns: 82%; } }
.proyectos .carrusel { margin-right: calc(-1 * var(--gutter)); padding-right: var(--gutter); }

.tarjeta a { text-decoration: none; display: block; }
.tarjeta figure { overflow: hidden; border-radius: var(--radio); background: var(--arena); }
.tarjeta img { width: 100%; aspect-ratio: 4 / 5; object-fit: cover; transition: transform .9s var(--suave); }
.tarjeta a:hover img { transform: scale(1.06); }
.tarjeta p { margin: 18px 0 0; display: flex; align-items: baseline; gap: 14px; }
.tarjeta .nombre { font: 400 clamp(26px, 2.2vw, 34px)/1 var(--serif); }
.tarjeta .tags { margin-top: 8px; font-size: 14px; color: var(--tinta-suave); }

/* por qué nosotros */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.cards li { background: var(--papel); border-radius: var(--radio); padding: clamp(28px, 3vw, 44px); }
.cards h3 { font-size: clamp(28px, 2.4vw, 36px); margin: 56px 0 18px; }
.cards p { margin: 0; color: var(--tinta-suave); }
@media (max-width: 900px) { .cards { grid-template-columns: 1fr; } .cards h3 { margin-top: 28px; } }

/* proceso + maqueta */
.proceso { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr); gap: 40px 72px; align-items: start; }
.proceso-maqueta { position: sticky; top: 100px; }
.pasos { margin: 8px 0 44px; border-top: 1px solid var(--linea); }
.pasos li {
  display: flex; gap: 22px; align-items: baseline; padding: 26px 0; border-bottom: 1px solid var(--linea);
  font: 400 clamp(28px, 2.8vw, 40px)/1.05 var(--serif); color: var(--tinta-suave); transition: color .4s;
}
.pasos li .num { transition: color .4s, background .4s; padding: 6px 9px; border-radius: 999px; }
.pasos li.activo { color: var(--tinta); }
.pasos li.activo .num { background: var(--lila); color: var(--tinta); }
@media (max-width: 900px) {
  .proceso { grid-template-columns: 1fr; }
  .proceso-maqueta { order: -1; top: 72px; z-index: 2; background: var(--papel); margin: 0 calc(-1 * var(--gutter)); border-bottom: 1px solid var(--linea); }
}

/* reseñas */
.resenas { grid-auto-columns: min(600px, 86%); }
.resena figure { height: 100%; display: flex; flex-direction: column; gap: 28px; padding: clamp(28px, 3vw, 44px); border: 1px solid rgba(235, 220, 201, .28); border-radius: var(--radio); }
.resena img { width: 64px; height: 64px; border-radius: 50%; object-fit: cover; }
.resena blockquote { margin: 0; }
.resena p { margin: 0; font: 400 clamp(21px, 1.8vw, 26px)/1.35 var(--serif); }
.resena p::before { content: "“"; }
.resena p::after { content: "”"; }
.resena figcaption { margin-top: auto; font-size: 14px; color: var(--lila-claro); letter-spacing: .04em; }

/* contacto */
.contacto { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, .8fr); gap: 48px 80px; align-items: center; }
.contacto .titulo { max-width: 12ch; }
.contacto p:not(.indice) { max-width: 44ch; color: var(--tinta-suave); margin: 0 0 32px; }
.contacto figure img { border-radius: var(--radio); aspect-ratio: 4 / 5; object-fit: cover; width: 100%; }
@media (max-width: 860px) { .contacto { grid-template-columns: 1fr; } .contacto figure { max-width: 420px; } }

/* bloque de Instagram */
.ig-bloque { display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); gap: 40px 80px; align-items: center; border-top: 1px solid var(--linea); }
.ig-grande {
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 18px; aspect-ratio: 1;
  border-radius: 28%; text-decoration: none; color: var(--papel);
  background: linear-gradient(140deg, var(--oliva) 0%, #6b7444 45%, var(--lila) 130%);
  font: 400 clamp(20px, 2vw, 28px)/1 var(--serif); max-width: 340px; width: 100%; justify-self: center;
  transition: transform .5s var(--suave);
}
.ig-grande:hover { transform: rotate(-3deg) scale(1.02); }
.ig-grande .ig { width: 34%; height: auto; stroke-width: 1.1; }
.ig-bloque p { color: var(--tinta-suave); max-width: 40ch; margin: 0 0 32px; }
@media (max-width: 760px) { .ig-bloque { grid-template-columns: 1fr; } .ig-grande { max-width: 240px; } }
.botones.centrados { justify-content: center; }

/* ---------- proyecto ---------- */
.ficha { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.4fr); gap: 40px 80px; padding-bottom: 0; }
.ficha.sin-texto { grid-template-columns: 1fr; }
.datos { display: grid; gap: 0; border-top: 1px solid var(--linea); align-self: start; }
.ficha.sin-texto .datos { grid-template-columns: repeat(3, 1fr); }
.datos div { padding: 18px 0; border-bottom: 1px solid var(--linea); }
.datos dt { font-size: 12.5px; letter-spacing: .16em; text-transform: uppercase; color: var(--tinta-suave); margin-bottom: 6px; }
.datos dd { font: 400 24px/1.2 var(--serif); }
.texto p { margin: 0 0 1.1em; font: 400 clamp(20px, 1.7vw, 24px)/1.45 var(--serif); }
@media (max-width: 760px) { .ficha, .ficha.sin-texto .datos { grid-template-columns: 1fr; } }

.galeria-sec { padding-top: clamp(48px, 6vw, 80px); }
.galeria .fila { display: grid; gap: clamp(10px, 1.4vw, 18px); margin-bottom: clamp(10px, 1.4vw, 18px); }
.galeria .par { grid-template-columns: 1fr 1fr; }
.galeria a { display: block; overflow: hidden; border-radius: var(--radio); cursor: zoom-in; background: var(--arena); }
.galeria img { width: 100%; height: 100%; object-fit: cover; transition: transform 1s var(--suave); }
.galeria a:hover img { transform: scale(1.03); }
.galeria .ancha img { aspect-ratio: 16 / 9; }
.galeria .par.horiz img { aspect-ratio: 3 / 2; }
.galeria .par.vert img { aspect-ratio: 4 / 5; }
.galeria .sola-vert { width: min(620px, 100%); margin-left: auto; margin-right: auto; }
@media (max-width: 600px) { .galeria .par.horiz { grid-template-columns: 1fr; } }
.cta-proyecto { text-align: center; padding-top: clamp(64px, 8vw, 120px); }
.cta-proyecto .titulo { max-width: 16ch; margin: 0 auto 32px; }
.mas { border-top: 1px solid var(--linea); }

.error { min-height: 70svh; display: grid; align-content: center; padding-top: 140px; }

/* ---------- aparición al bajar (solo si hay JS) ---------- */
[data-revelar].oculto { opacity: 0; transform: translateY(32px); }
[data-revelar].visto { opacity: 1; transform: none; transition: opacity 1s var(--suave), transform 1s var(--suave); }

/* ---------- botón de WhatsApp ---------- */
.wa-flotante {
  position: fixed; right: 18px; bottom: 18px; z-index: 40;
  display: inline-flex; align-items: center; gap: 10px; padding: 14px 20px 14px 16px;
  background: var(--oliva); color: var(--arena); border-radius: 999px; text-decoration: none;
  font: 500 14px/1 var(--sans); letter-spacing: .04em;
  box-shadow: 0 10px 30px rgba(31, 34, 23, .25);
  transition: opacity .35s, transform .35s var(--suave), background .25s;
}
.wa-flotante:hover { background: var(--oliva-osc); }
.wa-flotante.escondido { opacity: 0; transform: translateY(20px); pointer-events: none; }
.chat { width: 22px; height: 22px; fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linejoin: round; }
@media (max-width: 700px) { .wa-flotante { padding: 16px; } .wa-flotante span { display: none; } }

/* ---------- visor de fotos ---------- */
.lb { padding: 0; border: 0; background: transparent; max-width: 100vw; max-height: 100vh; width: 100vw; height: 100vh; }
.lb::backdrop { background: rgba(14, 15, 9, .94); }
.lb[open] { display: grid; place-items: center; }
.lb img { max-width: 92vw; max-height: 86vh; width: auto; height: auto; object-fit: contain; }
.lb-cont { position: fixed; bottom: 18px; left: 0; right: 0; margin: 0; text-align: center; color: rgba(255, 255, 255, .75); font-size: 14px; letter-spacing: .1em; }
.lb button {
  position: fixed; background: rgba(255, 255, 255, .08); color: #fff; border: 1px solid rgba(255, 255, 255, .35);
  width: 52px; height: 52px; border-radius: 50%; font-size: 28px; line-height: 1; cursor: pointer;
}
.lb button:hover { background: rgba(255, 255, 255, .22); }
.lb-x { top: 16px; right: 16px; }
.lb-prev { left: 16px; top: 50%; transform: translateY(-50%); }
.lb-next { right: 16px; top: 50%; transform: translateY(-50%); }

/* ---------- pie ---------- */
.pie { background: var(--oliva-osc); color: var(--arena); padding: clamp(72px, 9vw, 128px) var(--gutter) 28px; overflow: hidden; }
.pie > * { max-width: var(--ancho); margin-left: auto; margin-right: auto; }
.pie-arriba { display: flex; justify-content: space-between; align-items: end; gap: 32px; flex-wrap: wrap; }
.pie-lema { margin: 0; font: 400 clamp(36px, 5vw, 72px)/1.02 var(--serif); }
.pie-lema em { color: var(--lila-claro); }
.pie-cols { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; margin-top: 80px; padding-top: 40px; border-top: 1px solid rgba(235, 220, 201, .22); }
.pie h2 { font: 500 12.5px/1 var(--sans); letter-spacing: .18em; text-transform: uppercase; color: var(--lila-claro); margin-bottom: 18px; }
.pie li { margin-bottom: 10px; }
.pie li a { text-decoration: none; overflow-wrap: anywhere; }
.pie li a:hover { text-decoration: underline; text-underline-offset: 5px; }
.pie-logo { display: block; margin-top: 72px; font: 200 clamp(80px, 22vw, 330px)/.8 var(--logo); letter-spacing: .12em; text-decoration: none; color: rgba(235, 220, 201, .14); white-space: nowrap; }
.pie-legal { display: flex; justify-content: space-between; gap: 16px; margin-top: 28px; font-size: 13px; opacity: .65; }
@media (max-width: 700px) { .pie-cols { grid-template-columns: 1fr; } }

/* ---------- maqueta 3D (CSS puro; las posiciones están en maqueta.css) ---------- */
.escena { height: clamp(320px, 42vw, 560px); display: grid; place-items: center; perspective: 1600px; overflow: hidden; }
.maqueta {
  --s: 1.18;
  position: relative; width: 0; height: 0; transform-style: preserve-3d;
  transform: translateY(40px) rotateX(58deg) rotateZ(-32deg) scale(var(--s));
  animation: girar 60s linear infinite;
}
@keyframes girar {
  from { transform: translateY(40px) rotateX(58deg) rotateZ(0deg) scale(var(--s)); }
  to { transform: translateY(40px) rotateX(58deg) rotateZ(360deg) scale(var(--s)); }
}
.escena.pausa .maqueta { animation-play-state: paused; }
@media (max-width: 1100px) { .maqueta { --s: .9; } }
@media (max-width: 900px) { .escena { height: 270px; } .maqueta { --s: .62; } }
@media (max-width: 420px) { .maqueta { --s: .52; } }

.maqueta i {
  position: absolute; left: 0; top: 0; transform-origin: 0 0; backface-visibility: visible;
  border: 1px solid rgba(67, 75, 47, .55); background-color: transparent;
  transition: background-color .9s ease, border-color .9s ease, opacity .9s ease;
}
/* materiales (etapa 4: obra terminada) */
.g-base.c-arriba { background-color: #e6d9c2; }
.maqueta .g-base { background-color: #cdbd9f; border-color: rgba(67, 75, 47, .25); }
.maqueta .g-base.c-arriba { background-color: #e6d9c2; }
.etapa-4 .g-casa.c-arriba, .etapa-3 .g-casa.c-arriba { background-color: #f6f3ec; }
.etapa-4 .g-casa.c-frente, .etapa-3 .g-casa.c-frente { background-color: #ece7dc; }
.etapa-4 .g-casa.c-atras, .etapa-3 .g-casa.c-atras { background-color: #ddd6c8; }
.etapa-4 .g-casa.c-izq, .etapa-3 .g-casa.c-izq { background-color: #e5dfd3; }
.etapa-4 .g-casa.c-der, .etapa-3 .g-casa.c-der { background-color: #d5cebf; }
.etapa-4 .g-techo, .etapa-3 .g-techo { background-color: #b49a74; }
.etapa-4 .g-techo.c-arriba, .etapa-3 .g-techo.c-arriba { background-color: #cdb894; }
.etapa-4 .g-pergola { background-color: #8e6d47; }
.etapa-4 .g-arbol { background-color: #6f7d48; }
.etapa-4 .g-arbol.c-arriba { background-color: #85935a; }
.etapa-4 .g-agua { background-color: #8cc4c9; border-color: rgba(60, 120, 130, .5); }
.etapa-4 .g-vidrio, .etapa-3 .g-vidrio { background-color: #5d6c68; border-color: rgba(31, 34, 23, .35); }
.etapa-4 .g-vidrio.c-frente, .etapa-4 .g-vidrio.c-der { background-color: #7b8f8b; }
.etapa-4 .g-casa, .etapa-4 .g-techo, .etapa-4 .g-pergola, .etapa-4 .g-arbol { border-color: rgba(31, 34, 23, .12); }
.etapa-3 .g-casa, .etapa-3 .g-techo { border-color: rgba(31, 34, 23, .14); }
/* etapa 2: planos (volúmenes translúcidos) */
.etapa-2 .g-casa { background-color: rgba(255, 255, 255, .45); }
/* qué se ve en cada etapa */
.etapa-1 .g-techo, .etapa-1 .g-pergola, .etapa-1 .g-arbol, .etapa-1 .g-agua, .etapa-1 .g-vidrio,
.etapa-2 .g-pergola, .etapa-2 .g-arbol, .etapa-2 .g-agua,
.etapa-3 .g-agua { opacity: 0; }
.etapa-1 .g-casa { border-style: dashed; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .maqueta { animation: none; }
  .hero-img, .hero-txt > * { animation: none; }
  [data-revelar].oculto { opacity: 1; transform: none; }
  * { transition-duration: .01ms !important; }
}