:root{
  --nogal:#4a2f22;--cafe:#6f452d;--medio:#8d5a38;--roble:#b9794f;--pino:#d8ad78;
  --arena:#ead8bd;--papel:#f3ede3;--blanco:#fffaf2;--tinta:#3a2f29;--suave:#796c64;--linea:#d8c8b6;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--papel);color:var(--tinta);font-family:Arial,Helvetica,sans-serif;line-height:1.56}
a{color:inherit;text-decoration:none}img{display:block;width:100%}button,input,textarea,select{font:inherit}

.cabecera{
  position:sticky;top:0;z-index:80;display:grid;grid-template-columns:auto 1fr auto;gap:1rem;align-items:center;
  padding:.9rem 1.2rem;background:#fffaf2ef;backdrop-filter:blur(14px);border-bottom:1px solid var(--linea)
}
.marca{font:700 1.25rem Georgia,serif;color:var(--nogal)}
.nav{display:flex;justify-content:center;gap:.4rem;flex-wrap:wrap}.nav a{font-size:.74rem;padding:.58rem .75rem;border-radius:999px}
.nav a:hover,.nav a.activo{background:var(--nogal);color:#fff}.sello{font-size:.68rem;color:var(--suave)}
.regla{height:8px;background:repeating-linear-gradient(90deg,var(--medio) 0 2px,transparent 2px 18px);opacity:.45}

.portada{min-height:82vh;display:grid;grid-template-columns:.95fr 1.05fr;gap:4vw;align-items:center;padding:6vw 5vw}
.etiqueta{font-size:.64rem;letter-spacing:.2em;font-weight:900;color:var(--medio)}
h1,h2,h3{letter-spacing:-.04em}h1{font:700 clamp(4rem,7vw,7rem)/.86 Georgia,serif;margin:.6rem 0 1.2rem}
.portada p,.seccion p{color:var(--suave);max-width:650px}.portada img{border:1px solid var(--nogal);border-radius:28px}
.acciones{display:flex;gap:.6rem;flex-wrap:wrap}.boton{display:inline-flex;padding:.82rem .95rem;border:1px solid var(--nogal);background:#fff;font-weight:800;cursor:pointer}.boton.principal{background:var(--nogal);color:#fff}
.resumen{display:grid;grid-template-columns:repeat(4,1fr);border-block:1px solid var(--linea)}.resumen article{padding:1rem 1.2rem;border-right:1px solid var(--linea)}.resumen b{display:block;font-size:1.8rem;color:var(--medio)}.resumen span{font-size:.72rem;color:var(--suave)}

.seccion{padding:6vw 5vw}.cabecera-seccion{display:grid;grid-template-columns:.8fr 1.2fr;gap:4vw;align-items:end;margin-bottom:2rem}
.cabecera-seccion h2{font:700 clamp(2.8rem,5vw,5rem)/.94 Georgia,serif;margin:.3rem 0}

.carril{display:flex;gap:1rem;overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:1rem}
.madera{min-width:330px;scroll-snap-align:start;background:#fff;border:1px solid var(--linea);border-radius:22px;overflow:hidden}
.madera .muestra-visual{height:150px;position:relative}.madera .muestra-visual:after{content:"";position:absolute;inset:0;background:repeating-radial-gradient(ellipse at 10% 50%,transparent 0 16px,#00000014 17px 19px,transparent 20px 36px)}
.madera-copia{padding:1.2rem}.madera h3{margin:.2rem 0}.madera p{color:var(--suave)}.madera button{border:1px solid var(--nogal);background:#fff;padding:.58rem .72rem;cursor:pointer}
.madera.activa{outline:4px solid var(--nogal);outline-offset:-4px}

.ficha{display:grid;grid-template-columns:1fr .85fr;gap:1rem}.ficha-principal{background:#fff;border:1px solid var(--linea);padding:1.4rem;border-radius:24px}.ficha-principal strong{display:block;font:700 2.2rem Georgia,serif;color:var(--nogal)}
.ficha-datos{display:grid;gap:.55rem;margin-top:1rem}.dato{display:flex;justify-content:space-between;padding:.7rem 0;border-bottom:1px dashed var(--linea);font-size:.78rem}.dato span{color:var(--suave)}.dato b{color:var(--medio)}
.ficha img{background:#fff;border:1px solid var(--linea);border-radius:24px}

.configurador{display:grid;grid-template-columns:.8fr 1.2fr;gap:4vw}.panel-config{background:#fff;border:1px solid var(--linea);padding:1.4rem;border-radius:22px}
.grupo{margin:1rem 0}.grupo>span{display:block;font-size:.7rem;color:var(--suave);font-weight:800;margin-bottom:.5rem}
.pestanas{display:flex;gap:.45rem;flex-wrap:wrap}.pestanas button{border:1px solid var(--linea);background:#fff;padding:.65rem .8rem;cursor:pointer}.pestanas button.activo{background:var(--roble);color:#fff;border-color:var(--roble)}
.salida{margin-top:1rem;padding:1rem;background:#f8f1e8;border:1px solid var(--linea)}.salida strong{display:block;font:700 2rem Georgia,serif;color:var(--nogal)}.salida p{margin-bottom:0}
.piezas{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem}.pieza{background:#fff;border:1px solid var(--linea);border-radius:18px;overflow:hidden}.pieza img{aspect-ratio:4/3;object-fit:cover}.pieza div{padding:1rem}.pieza p{color:var(--suave)}
.proceso{display:grid;grid-template-columns:repeat(4,1fr);gap:1rem}.paso{background:var(--nogal);color:#fff;padding:1.2rem;border-radius:18px}.paso b{color:var(--pino)}.paso p{color:#e2d3c5}
.cabecera-pagina{padding:7vw 5vw 3vw;background:#eadfce;border-bottom:1px solid var(--linea)}.cabecera-pagina h1{font:700 clamp(3.7rem,7vw,7rem)/.9 Georgia,serif}
.formulario{display:grid;gap:1rem;max-width:760px}.campo label{display:block;font-size:.7rem;font-weight:800;margin-bottom:.35rem}.campo input,.campo textarea,.campo select{width:100%;padding:.85rem;border:1px solid var(--linea);background:#fff}.estado-formulario{min-height:1.2em;color:var(--medio);font-weight:800}
.pie{padding:3rem 5vw;border-top:1px solid var(--linea);display:grid;grid-template-columns:1.2fr .8fr .8fr;gap:2rem;background:var(--blanco)}.pie p,.pie a{display:block;color:var(--suave);font-size:.8rem;margin:.25rem 0}

@media(max-width:950px){.portada,.ficha,.configurador{grid-template-columns:1fr}.cabecera-seccion{grid-template-columns:1fr}.piezas,.proceso{grid-template-columns:1fr 1fr}}
@media(max-width:650px){.cabecera{grid-template-columns:1fr auto}.nav{grid-column:1/-1;justify-content:flex-start;overflow:auto;flex-wrap:nowrap}.nav a{white-space:nowrap}.sello{display:none}.portada,.seccion,.cabecera-pagina{padding-left:20px;padding-right:20px}.resumen,.piezas,.proceso{grid-template-columns:1fr}.madera{min-width:86vw}.pie{grid-template-columns:1fr}}