/* Concepto 02 · Reformas («Obra & Luz») · diseño «Cota». Tuscape, 22/09/2026. Diseño propio de Tuscape.
   Hormigón, grafito y latón; rejilla de planos; Archivo (expandida para rótulos) e IBM Plex Mono (letra de plano),
   alojadas aquí (OFL, licencias en ../fonts/). Colores en variables desde el JSON: --grafito, --grafito-2, --hormigon,
   --claro, --hueso, --laton, --laton-osc (y sus -rgb). Nada carga de fuera. */
@font-face{font-family:"Archivo";src:url("../fonts/archivo-var.woff2") format("woff2");font-weight:100 900;font-stretch:62% 125%;font-style:normal;font-display:swap}
@font-face{font-family:"IBM Plex Mono";src:url("../fonts/ibm-plex-mono-400.woff2") format("woff2");font-weight:400;font-style:normal;font-display:swap}
@font-face{font-family:"IBM Plex Mono";src:url("../fonts/ibm-plex-mono-500.woff2") format("woff2");font-weight:500;font-style:normal;font-display:swap}

:root{--sans:"Archivo","Helvetica Neue",Arial,system-ui,sans-serif;--mono:"IBM Plex Mono",ui-monospace,"Cascadia Mono",Consolas,monospace;
  --obra:cubic-bezier(.77,0,.18,1);--sale:cubic-bezier(.16,1,.3,1);--franja:30px;--cab:64px;--margen:clamp(1.25rem,5vw,5rem);
  --rejilla-osc:linear-gradient(rgba(var(--hueso-rgb),.055) 1px,transparent 1px) 0 0/32px 32px,linear-gradient(90deg,rgba(var(--hueso-rgb),.055) 1px,transparent 1px) 0 0/32px 32px,linear-gradient(rgba(var(--hueso-rgb),.06) 1px,transparent 1px) 0 0/160px 160px,linear-gradient(90deg,rgba(var(--hueso-rgb),.06) 1px,transparent 1px) 0 0/160px 160px;
  --rejilla-clara:linear-gradient(rgba(var(--grafito-rgb),.05) 1px,transparent 1px) 0 0/32px 32px,linear-gradient(90deg,rgba(var(--grafito-rgb),.05) 1px,transparent 1px) 0 0/32px 32px;
  --poro:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 .2 0 0 0 0 .2 0 0 0 0 .2 0 0 0 .09 0'/%3E%3C/filter%3E%3Crect width='180' height='180' filter='url(%23n)'/%3E%3C/svg%3E")}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-padding-top:calc(var(--franja) + var(--cab) + 12px)}
body{margin:0;background:var(--poro),var(--claro);color:var(--grafito);font-family:var(--sans);font-stretch:100%;font-weight:400;font-size:clamp(1rem,.96rem + .2vw,1.1rem);line-height:1.6;overflow-x:clip;-webkit-font-smoothing:antialiased}
a{color:inherit}
h1,h2,h3{font-weight:600;margin:0;line-height:1.05}
p{margin:0 0 1em}
em{font-style:normal;color:var(--laton-osc)}
.mono{font-family:var(--mono);font-size:.72rem;letter-spacing:.12em;text-transform:uppercase;font-weight:400}
::selection{background:rgba(var(--laton-rgb),.45);color:var(--grafito)}
:focus-visible{outline:2px solid var(--laton);outline-offset:3px}
.sr{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;margin:-1px}
.saltar{position:absolute;left:1rem;top:-4rem;z-index:100;background:var(--laton);color:var(--grafito);padding:.6rem 1rem;text-decoration:none;font-weight:600}
.saltar:focus{top:1rem}

/* ---------- Franja legal y cabecera ---------- */
.alto{position:sticky;top:0;z-index:50}
.franja-demo{margin:0;min-height:var(--franja);display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:0 .4em;padding:.3rem 1rem;background:var(--laton);color:var(--grafito);font-family:var(--mono);font-size:.68rem;font-weight:500;letter-spacing:.1em;text-transform:uppercase;text-align:center;line-height:1.35}
.franja-demo .provisional{font-weight:500;background:var(--grafito);color:var(--laton);padding:0 .45em;letter-spacing:.06em}
.cab{height:var(--cab);display:flex;align-items:center;gap:clamp(.8rem,2.4vw,2.4rem);padding:0 var(--margen);background:rgba(var(--grafito-rgb),.94);color:var(--hueso);border-bottom:1px solid rgba(var(--hueso-rgb),.1);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}
.marca{display:flex;align-items:baseline;gap:.7rem;text-decoration:none;margin-right:auto}
.marca-n{font-weight:800;font-stretch:125%;text-transform:uppercase;letter-spacing:.02em;font-size:1.2rem}
.marca-s{font-family:var(--mono);font-size:.66rem;letter-spacing:.2em;text-transform:uppercase;color:var(--laton)}
.cab-nav{display:flex;gap:1.8rem}
.cab-nav a{text-decoration:none;font-size:.86rem;letter-spacing:.04em;position:relative;padding:.4rem 0}
.cab-nav a::after{content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:var(--laton);transform:scaleX(0);transform-origin:right;transition:transform .5s var(--obra)}
.cab-nav a:hover::after,.cab-nav a[aria-current]::after{transform:scaleX(1);transform-origin:left}
.menu-boton{display:inline-flex;align-items:center;gap:.7rem;background:none;border:1px solid rgba(var(--hueso-rgb),.28);color:inherit;font-family:var(--mono);font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;padding:0 .9rem;min-height:40px;cursor:pointer;transition:border-color .3s,background .3s}
.menu-boton:hover{border-color:var(--laton)}
.menu-marca{display:grid;gap:4px;width:18px}
.menu-marca i{display:block;height:1.5px;background:currentColor;transition:transform .5s var(--obra),opacity .3s}
.menu-marca i:nth-child(2){width:60%}
.menu-boton[aria-expanded="true"]{background:var(--laton);border-color:var(--laton);color:var(--grafito)}
.menu-boton[aria-expanded="true"] .menu-marca i:nth-child(1){transform:translateY(5.5px) rotate(45deg)}
.menu-boton[aria-expanded="true"] .menu-marca i:nth-child(2){opacity:0}
.menu-boton[aria-expanded="true"] .menu-marca i:nth-child(3){transform:translateY(-5.5px) rotate(-45deg)}

/* ---------- Botones ---------- */
.boton-obra{display:inline-flex;align-items:center;gap:.6rem;min-height:46px;padding:0 1.3rem;background:var(--laton);color:var(--grafito);font-weight:600;font-size:.92rem;letter-spacing:.02em;text-decoration:none;cursor:not-allowed;position:relative;overflow:hidden;border:0}
.boton-obra::before{content:"";position:absolute;inset:0;background:var(--hueso);transform:translateX(-101%);transition:transform .55s var(--obra)}
.boton-obra:hover::before{transform:none}
.boton-obra{isolation:isolate}.boton-obra::before{z-index:-1}.boton-cta{isolation:isolate}.boton-cta::before{z-index:-1}
.boton-obra .chip{position:relative;font-family:var(--mono);font-size:.6rem;letter-spacing:.12em;text-transform:uppercase;border:1px solid rgba(var(--grafito-rgb),.45);padding:.1rem .35rem;font-weight:500}
.boton-obra.en-cab{min-height:38px;font-size:.8rem;padding:0 .9rem}
.boton-obra.peq{min-height:42px;font-size:.85rem}
.boton-obra.ancho{width:100%;justify-content:center;min-height:52px}
.enlace-linea{display:inline-flex;align-items:center;gap:.6rem;text-decoration:none;font-weight:500;padding:.5rem 0;border-bottom:1px solid currentColor;min-height:44px}
.enlace-linea .fl,.boton-cta .fl{width:20px;height:20px;transition:transform .45s var(--obra)}
.enlace-linea:hover .fl,.boton-cta:hover .fl{transform:translateX(5px)}
.boton-cta{display:inline-flex;align-items:center;gap:.9rem;min-height:52px;padding:0 1.5rem;background:var(--hueso);color:var(--grafito);text-decoration:none;font-weight:600;border:1px solid var(--hueso);position:relative;overflow:hidden}
.boton-cta span{position:relative}
.boton-cta::before{content:"";position:absolute;inset:0;background:var(--laton);transform:scaleY(0);transform-origin:bottom;transition:transform .5s var(--obra)}
.boton-cta:hover::before{transform:scaleY(1)}
.boton-cta .fl{position:relative}
.boton-cta.peq{min-height:44px;font-size:.85rem;padding:0 1.1rem}

/* ---------- Rótulos de lámina: sección y cota ---------- */
.seccion{display:flex;align-items:center;gap:.9rem;font-family:var(--mono);font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;margin:0 0 1.6rem;color:rgba(var(--grafito-rgb),.8)}
.seccion-n{color:var(--laton-osc);font-weight:500}
.seccion.claro{color:rgba(var(--hueso-rgb),.72)}
.seccion.claro .seccion-n{color:var(--laton)}
.cota{display:flex;align-items:center;gap:.8rem;font-family:var(--mono);font-size:.66rem;letter-spacing:.14em;text-transform:uppercase;color:var(--laton);margin:1.4rem 0}
.cota i{flex:1;height:1px;background:currentColor;position:relative;transform-origin:center}
.cota i::before{content:"";position:absolute;top:-6px;width:1px;height:13px;background:currentColor}
.cota i:first-child::before{left:0}.cota i:last-child::before{right:0}
.cota i::after{content:"";position:absolute;top:-4px;width:9px;height:9px;border-left:1px solid currentColor;transform:rotate(45deg)}
.cota i:first-child::after{left:-1px}.cota i:last-child::after{right:-7px}
.titulo-grande{font-size:clamp(2.2rem,5.4vw,4.6rem);font-weight:700;font-stretch:112%;letter-spacing:-.015em;line-height:1}
.titulo-pagina{font-size:clamp(2.6rem,8vw,6.6rem);font-weight:800;font-stretch:125%;letter-spacing:-.02em;line-height:.92;text-transform:uppercase}
.titulo-medio{font-size:clamp(1.6rem,3vw,2.4rem);font-weight:700;font-stretch:110%;letter-spacing:-.01em}
.entradilla{font-size:clamp(1.05rem,1rem + .45vw,1.3rem);line-height:1.5;max-width:36rem}

/* ---------- Portada: la planta que se levanta ---------- */
.portada{position:relative;background:var(--rejilla-osc),var(--grafito);color:var(--hueso);min-height:calc(100svh - var(--franja) - var(--cab));display:grid;align-items:center;overflow:hidden;isolation:isolate}
.portada::after{content:"";position:absolute;inset:0;background:radial-gradient(ellipse at 70% 45%,transparent 30%,rgba(var(--grafito-rgb),.75) 100%);pointer-events:none;z-index:0}
.portada-lienzo{position:absolute;inset:0;z-index:1}
.lienzo-planta{display:block;width:100%;height:100%}
.portada-texto{position:relative;z-index:2;padding:clamp(2rem,6vh,4rem) var(--margen);max-width:min(46rem,48vw)}
.rotulo{display:flex;align-items:center;gap:.8rem;font-family:var(--mono);font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;color:var(--laton);margin-bottom:1.4rem}
.rotulo-marca{width:28px;height:1px;background:currentColor}
.nombre{font-size:clamp(3.4rem,15vw,7.8rem);font-weight:800;font-stretch:125%;text-transform:uppercase;letter-spacing:-.02em;line-height:.84;margin:0}
.nombre-caja{display:block;overflow:hidden;padding:.06em 0 .04em}
.nombre-txt{display:inline-block}
.nombre-txt .l{display:inline-block;white-space:pre}
.nombre-txt .amp{color:var(--laton);font-weight:300;font-stretch:100%}
.portada .cota{max-width:34rem}
.portada .entradilla{color:rgba(var(--hueso-rgb),.86)}
.botones{display:flex;flex-wrap:wrap;align-items:center;gap:1rem 1.6rem;margin-top:1.8rem}
.cajetin{position:absolute;right:var(--margen);bottom:clamp(1.2rem,4vh,2.4rem);z-index:2;margin:0;display:grid;grid-template-columns:repeat(4,auto);border:1px solid rgba(var(--hueso-rgb),.28);background:rgba(var(--grafito-rgb),.72);font-family:var(--mono);font-size:.64rem;letter-spacing:.1em;text-transform:uppercase}
.cajetin>div{padding:.55rem .8rem;border-left:1px solid rgba(var(--hueso-rgb),.2);min-width:5.5rem}
.cajetin>div:first-child{border-left:0}
.cajetin dt{color:rgba(var(--hueso-rgb),.5);margin-bottom:.2rem}
.cajetin dd{margin:0;color:var(--hueso)}
.cajetin-fase{min-width:10rem!important}
.cajetin-fase dd{position:relative;height:1.2em;overflow:hidden}
.cajetin-fase dd span{position:absolute;left:0;top:0;color:var(--laton);transform:translateY(110%);transition:transform .6s var(--obra)}
.portada[data-fase="trazado"] .cajetin-fase [data-f="trazado"],.portada[data-fase="levantado"] .cajetin-fase [data-f="levantado"],.portada[data-fase="acabado"] .cajetin-fase [data-f="acabado"],.portada[data-fase="plano"] .cajetin-fase [data-f="plano"]{transform:none}

/* Controles de escena (escena.js) */
.esc-ctrl{position:absolute;z-index:5;display:flex;gap:1px}
.esc-ctrl button{display:inline-flex;align-items:center;gap:.45rem;background:rgba(var(--grafito-rgb),.8);border:1px solid rgba(var(--hueso-rgb),.28);color:var(--hueso);font-family:var(--mono);font-size:.62rem;letter-spacing:.14em;text-transform:uppercase;padding:.4rem .7rem;cursor:pointer;min-height:36px;transition:border-color .3s,color .3s}
.esc-ctrl button:hover{border-color:var(--laton);color:var(--laton)}
.esc-ctrl svg{width:14px;height:14px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:square}
.esc-ctrl .esc-pp svg path[d^="M8.5"]{fill:currentColor}
.esc-portada{top:1.2rem;right:var(--margen)}
.esc-planos{right:.8rem;top:.8rem}
.esc-diagrama{right:.8rem;top:.8rem}
.esc-presu{right:.8rem;bottom:.8rem}

/* ---------- Entradas (una vez) ---------- */
@keyframes sube{to{opacity:1;transform:none}}
@keyframes letra{from{transform:translateY(105%)}to{transform:none}}
@keyframes cotaAbre{from{transform:scaleX(0)}to{transform:scaleX(1)}}
@keyframes nivel{0%{transform:translateY(0);opacity:0}8%{opacity:1}85%{opacity:1}100%{transform:translateY(100vh);opacity:0}}
.anima .entra{opacity:0;transform:translateY(16px);animation:sube 1s var(--sale) forwards;animation-delay:calc(.45s + var(--i,0) * .11s)}
.anima .cota.entra{transform:none;animation:sube .01s linear .8s forwards}
.anima .cota.entra i{transform:scaleX(0);animation:cotaAbre 1.1s var(--obra) .8s forwards}
.anima .nombre-txt .l{transform:translateY(105%);animation:letra 1.1s var(--obra) forwards;animation-delay:calc(.25s + var(--i) * .06s)}
.anima [data-entra]{opacity:0;transform:translateY(22px);transition:opacity .9s var(--sale),transform .9s var(--sale);transition-delay:calc(var(--i,0) * .08s)}
.anima [data-entra].dentro{opacity:1;transform:none}
.anima [data-palabras] .w{opacity:.1;transition:opacity .8s var(--sale);transition-delay:calc(var(--i) * .04s)}
.anima [data-palabras].dentro .w{opacity:1}
.anima .manifiesto .cota i{transform:scaleX(0);transition:transform 1.4s var(--obra) .3s}
.anima .manifiesto .cota.dentro i{transform:none}
.nivel{position:fixed;left:0;right:0;top:0;height:1px;z-index:90;pointer-events:none;background:var(--laton);box-shadow:0 0 12px 1px rgba(var(--laton-rgb),.7);opacity:0}
.anima .nivel{animation:nivel 1.3s var(--obra) .05s forwards}

/* ---------- Manifiesto ---------- */
.manifiesto{padding:clamp(4.5rem,12vw,9rem) var(--margen);max-width:84rem;margin:0 auto}
.manifiesto-txt{font-size:clamp(1.8rem,4.4vw,3.8rem);font-weight:500;font-stretch:108%;line-height:1.12;letter-spacing:-.015em;max-width:24ch;margin:0}
.manifiesto .cota{color:var(--laton-osc);margin-top:3rem;max-width:40rem}

/* ---------- Tres planos (alzado) ---------- */
.planos{position:relative;background:var(--rejilla-osc),var(--grafito-2);color:var(--hueso);padding:clamp(4rem,9vw,7.5rem) var(--margen);display:grid;gap:clamp(2rem,4vw,3.5rem);grid-template-columns:1fr}
.planos-cab{max-width:40rem}
.planos-cab p:last-child{color:rgba(var(--hueso-rgb),.72);margin-top:1.2rem}
.planos-cab em,.cierre em,.diagrama em{color:var(--laton)}
.alzado-marco{position:relative;border:1px solid rgba(var(--hueso-rgb),.2);background:rgba(var(--grafito-rgb),.55);padding:clamp(.6rem,2vw,1.6rem)}
.alzado{display:block;width:100%;height:auto;color:var(--hueso)}
.az-muro{fill:none;stroke:rgba(var(--hueso-rgb),.5);stroke-width:1.5}
.az-fondo{fill:var(--grafito);stroke:rgba(var(--hueso-rgb),.5);stroke-width:1.5}
.az-tenue{opacity:.28}
.az-linea{fill:none;stroke:var(--hueso);stroke-width:1.4}
.az-instal{fill:none;stroke:var(--laton);stroke-width:2}
.az-cable{fill:none;stroke:var(--laton);stroke-width:1;stroke-dasharray:6 5;opacity:.8}
.az-laton{fill:none;stroke:var(--laton);stroke-width:4}
.az-cota{fill:none;stroke:rgba(var(--hueso-rgb),.45);stroke-width:1}
.az-laser{stroke:var(--laton);stroke-width:2;opacity:0}
.planos[data-paso] .az-laser{opacity:var(--laser,0)}
.quieto .az-corte{width:640px}
.planos-pasos{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:rgba(var(--hueso-rgb),.16);border:1px solid rgba(var(--hueso-rgb),.16)}
.plano-paso{background:var(--grafito-2);padding:1.1rem 1.1rem 1.2rem;opacity:.45;transition:opacity .5s,background .5s;position:relative}
.plano-paso::before{content:"";position:absolute;left:0;right:0;top:0;height:2px;background:var(--laton);transform:scaleX(0);transform-origin:left;transition:transform .6s var(--obra)}
.plano-paso.activo{opacity:1;background:rgba(var(--hueso-rgb),.04)}
.plano-paso.activo::before{transform:none}
.quieto .plano-paso{opacity:1}
.plano-paso .mono{color:var(--laton)}
.plano-paso h3{font-size:1.2rem;font-weight:700;font-stretch:110%;margin:.4rem 0 .35rem}
.plano-paso p{margin:0;font-size:.92rem;color:rgba(var(--hueso-rgb),.75)}

/* ---------- Tabla de obras (inicio) ---------- */
.obras-breve{padding:clamp(4.5rem,10vw,8rem) var(--margen);max-width:90rem;margin:0 auto}
.obras-cab{display:grid;gap:1rem;margin-bottom:2.8rem}
.obras-cab p:last-child{max-width:32rem;margin:0}
.tabla-obras{list-style:none;margin:0;padding:0;border-top:1px solid rgba(var(--grafito-rgb),.8)}
.tabla-obras .fila a{display:grid;grid-template-columns:4.5rem 1fr auto 28px;align-items:center;gap:1.4rem;padding:1.3rem .4rem;text-decoration:none;border-bottom:1px solid rgba(var(--grafito-rgb),.22);position:relative;isolation:isolate}
.tabla-obras .fila a::before{content:"";position:absolute;inset:0;background:var(--grafito);transform:scaleY(0);transform-origin:bottom;transition:transform .5s var(--obra);z-index:-1}
.tabla-obras .fila a:hover,.tabla-obras .fila a:focus-visible{color:var(--hueso)}
.tabla-obras .fila a:hover::before,.tabla-obras .fila a:focus-visible::before{transform:scaleY(1)}
.tabla-obras .fila a:hover .mono{color:var(--laton)}
.tabla-obras .mono{color:var(--laton-osc);transition:color .3s}
.fila-t b{display:block;font-size:clamp(1.3rem,2.6vw,2rem);font-weight:700;font-stretch:112%;letter-spacing:-.01em;line-height:1.1}
.fila-t small{display:block;font-size:.9rem;opacity:.72;margin-top:.2rem}
.dibujo.mini{width:84px;height:70px;opacity:.85}
.fila .fl{width:24px;height:24px;transition:transform .45s var(--obra)}
.fila a:hover .fl{transform:translateX(4px)}
.dibujo path,.dibujo circle{stroke-dasharray:1;stroke-dashoffset:0}
.dibujo .fino{stroke-width:.9;opacity:.7}

/* ---------- Páginas interiores: cabeza ---------- */
.cabeza{padding:clamp(3.5rem,9vw,7rem) var(--margen) clamp(2rem,5vw,3.5rem);max-width:90rem;margin:0 auto}
.migas{font-family:var(--mono);font-size:.7rem;letter-spacing:.14em;text-transform:uppercase;color:rgba(var(--grafito-rgb),.7);margin-bottom:1.6rem}
.migas a{text-decoration:none;border-bottom:1px solid rgba(var(--grafito-rgb),.35)}
.cabeza .entradilla{margin-top:1.5rem}
.cabeza .cota{color:var(--laton-osc);max-width:44rem}
.cabeza em,.titulo-pagina em{color:var(--laton-osc)}

/* ---------- Obras: láminas ---------- */
.laminas{padding:0 var(--margen) clamp(4rem,8vw,6rem);max-width:90rem;margin:0 auto;display:grid;gap:clamp(2.5rem,6vw,5rem)}
.lamina{display:grid;grid-template-columns:1fr;gap:clamp(1.4rem,3vw,3rem);align-items:center;border-top:1px solid rgba(var(--grafito-rgb),.8);padding-top:clamp(1.5rem,3vw,2.5rem)}
.lamina-dib{position:relative;background:var(--rejilla-clara),var(--hueso);border:1px solid rgba(var(--grafito-rgb),.25);aspect-ratio:6/5;display:grid;place-items:center;color:var(--grafito)}
.lamina-dib .dibujo{width:72%;height:auto}
.lamina-dib .mono{position:absolute;left:.8rem;bottom:.6rem;color:rgba(var(--grafito-rgb),.6)}
.lamina-cod{color:var(--laton-osc);margin-bottom:.6rem}
.lamina-sub{font-family:var(--mono);font-size:.78rem;letter-spacing:.06em;text-transform:uppercase;color:rgba(var(--grafito-rgb),.7);margin:.6rem 0 1.2rem}
.incluye{list-style:none;padding:0;margin:1.4rem 0 1.8rem;border-top:1px solid rgba(var(--grafito-rgb),.2)}
.incluye li{padding:.65rem 0 .65rem 1.8rem;border-bottom:1px solid rgba(var(--grafito-rgb),.2);position:relative}
.incluye li::before{content:"";position:absolute;left:0;top:1.15em;width:12px;height:1px;background:var(--laton-osc)}
.anima .lamina .dibujo path,.anima .lamina .dibujo circle{stroke-dashoffset:1;transition:stroke-dashoffset 2s var(--obra)}
.anima .lamina.dentro .dibujo path,.anima .lamina.dentro .dibujo circle{stroke-dashoffset:0}
.anima .lamina .lamina-txt{opacity:0;transform:translateY(20px);transition:opacity .9s var(--sale) .3s,transform .9s var(--sale) .3s}
.anima .lamina.dentro .lamina-txt{opacity:1;transform:none}
.nota{font-family:var(--mono);font-size:.72rem;letter-spacing:.06em;line-height:1.6;color:rgba(var(--grafito-rgb),.72);max-width:44rem;border-left:2px solid var(--laton-osc);padding-left:1rem}

/* ---------- Método: diagrama de obra ---------- */
.diagrama{position:relative;margin:0 var(--margen);background:var(--rejilla-osc),var(--grafito);color:var(--hueso);padding:clamp(1.6rem,4vw,3rem) clamp(1.2rem,3vw,2.5rem) clamp(2.6rem,5vw,3.5rem);overflow:hidden;max-width:90rem}
@media (min-width:1600px){.diagrama{margin:0 auto}}
.diagrama-rejilla{position:absolute;top:0;bottom:0;right:clamp(1.2rem,3vw,2.5rem);left:calc(clamp(1.2rem,3vw,2.5rem) + 38%);display:grid;grid-template-columns:repeat(12,1fr);pointer-events:none}
.diagrama-rejilla i{border-left:1px dashed rgba(var(--hueso-rgb),.12)}
.fases{list-style:none;margin:0;padding:0;position:relative;display:grid;gap:0}
.fase{display:grid;grid-template-columns:38% 1fr;align-items:center;gap:1.2rem;padding:1.1rem 0;border-bottom:1px solid rgba(var(--hueso-rgb),.14);opacity:.5;transition:opacity .5s}
.fase.activo,.fase.hecho,.quieto .fase{opacity:1}
.fase-txt .mono{color:var(--laton)}
.fase-txt h3{font-size:clamp(1.15rem,2vw,1.5rem);font-weight:700;font-stretch:112%;margin:.3rem 0}
.fase-txt p{margin:0;font-size:.9rem;color:rgba(var(--hueso-rgb),.72)}
.fase-barra{position:relative;height:18px}
.fase-barra i{position:absolute;top:0;bottom:0;left:calc(var(--i) * 23%);width:31%;background:repeating-linear-gradient(135deg,rgba(var(--laton-rgb),.9) 0 6px,rgba(var(--laton-rgb),.55) 6px 12px);transform:scaleX(var(--k,0));transform-origin:left;border:1px solid var(--laton)}
.quieto .fase-barra i{--k:1}
.diagrama-hoy{position:absolute;top:0;bottom:0;left:calc(clamp(1.2rem,3vw,2.5rem) + 38% + 1.2rem + (100% - 2 * clamp(1.2rem,3vw,2.5rem) - 38% - 1.2rem) * var(--hoy,0));width:1px;background:var(--hueso);opacity:.8;pointer-events:none}
.diagrama-hoy span{position:absolute;bottom:.6rem;right:.5rem;white-space:nowrap;font-family:var(--mono);font-size:.6rem;letter-spacing:.12em;text-transform:uppercase;color:var(--hueso)}
.quieto .diagrama-hoy{display:none}
.valores{padding:clamp(3.5rem,8vw,6rem) var(--margen);max-width:90rem;margin:0 auto}
.valores ol{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:1fr;gap:1px;background:rgba(var(--grafito-rgb),.25);border:1px solid rgba(var(--grafito-rgb),.25)}
.valores li{background:var(--claro);padding:1.6rem 1.4rem}
.valores .mono{color:var(--laton-osc)}
.valores h2{margin:.6rem 0 .5rem}
.valores p{margin:0}

/* ---------- Presupuesto por partidas ---------- */
.presu{position:relative;padding:0 var(--margen) clamp(4rem,8vw,6rem);max-width:64rem;margin:0 auto}
.presu-hoja{position:relative;background:var(--rejilla-clara),var(--hueso);border:1px solid rgba(var(--grafito-rgb),.3);padding:clamp(1.3rem,4vw,2.6rem);box-shadow:0 30px 60px -40px rgba(var(--grafito-rgb),.6)}
.presu-sello{position:absolute;top:clamp(1rem,3vw,1.8rem);right:clamp(1rem,3vw,1.8rem);margin:0;transform:rotate(-4deg)}
.presu-sello span{display:inline-block;border:1.5px solid var(--laton-osc);color:var(--laton-osc);font-family:var(--mono);font-size:.68rem;font-weight:500;letter-spacing:.14em;text-transform:uppercase;padding:.35rem .6rem}
.presu-t{font-family:var(--mono);font-size:.72rem;font-weight:500;letter-spacing:.14em;text-transform:uppercase;margin:0 0 .9rem;padding-right:9rem}
.tipos{display:flex;flex-wrap:wrap;gap:.5rem;margin-bottom:2rem}
.tipo{border:1px solid rgba(var(--grafito-rgb),.35);padding:.45rem .8rem;font-size:.88rem;transition:background .4s,color .4s,border-color .4s}
.tipo.elegido{background:var(--grafito);color:var(--hueso);border-color:var(--grafito)}
.partidas{width:100%;border-collapse:collapse;margin-bottom:1.8rem;font-variant-numeric:tabular-nums}
.partidas thead th{font-family:var(--mono);font-size:.64rem;font-weight:500;letter-spacing:.14em;text-transform:uppercase;color:rgba(var(--grafito-rgb),.65);text-align:left;padding:.4rem 0;border-bottom:1px solid var(--grafito)}
.partidas thead th:last-child,.partidas td{text-align:right}
.partidas tbody th{font-weight:500;text-align:left;padding:.85rem 0}
.partidas tbody th .mono{color:var(--laton-osc);margin-right:.6rem}
.partidas td{font-family:var(--mono);font-size:.95rem;white-space:nowrap;padding:.85rem 0 .85rem 1rem}
.partida{border-bottom:1px solid rgba(var(--grafito-rgb),.18);transition:opacity .5s,transform .5s var(--sale)}
.anima .presu[data-paso] .partida,.anima .presu[data-paso] .partida-total{opacity:.18}
.anima .presu .partida.ve,.anima .presu .partida-total.ve{opacity:1}
.partida-total th{text-align:left;padding:1.1rem 0 .4rem;font-weight:800;font-stretch:115%;text-transform:uppercase;font-size:1.05rem;border-top:3px double var(--laton-osc)}
.partida-total th small{font-family:var(--mono);font-size:.62rem;font-weight:400;letter-spacing:.08em;text-transform:none;color:rgba(var(--grafito-rgb),.65);display:block;margin-top:.2rem}
.partida-total td{font-size:1.25rem;font-weight:500;padding-top:1.1rem;border-top:3px double var(--laton-osc);vertical-align:top}
.presu .nota{margin-top:1.6rem}

/* ---------- Cierre ---------- */
.cierre{background:var(--rejilla-osc),var(--grafito);color:var(--hueso);padding:clamp(4.5rem,10vw,8rem) var(--margen)}
.cierre-lamina{max-width:60rem;border-left:1px solid rgba(var(--laton-rgb),.6);padding-left:clamp(1.2rem,4vw,3rem)}
.cierre-txt{color:rgba(var(--hueso-rgb),.78);max-width:40rem;margin:1.6rem 0 2.2rem}
.anima .cierre-lamina{opacity:0;transform:translateX(-18px);transition:opacity 1s var(--sale),transform 1s var(--sale)}
.anima .cierre-lamina.dentro{opacity:1;transform:none}

/* ---------- Pie ---------- */
.pie{background:var(--grafito-2);color:var(--hueso);padding:clamp(3rem,7vw,5rem) var(--margen) 2rem;overflow:hidden}
.pie .pie-nombre{margin:0 0 2.5rem;font-weight:800;font-stretch:125%;text-transform:uppercase;font-size:clamp(2.6rem,11.5vw,11rem);line-height:.85;letter-spacing:-.03em;color:transparent;-webkit-text-stroke:1px rgba(var(--hueso-rgb),.35);white-space:nowrap}
.pie-rejilla{display:grid;grid-template-columns:1fr;gap:2rem;border-top:1px solid rgba(var(--hueso-rgb),.16);padding-top:2rem}
.pie-t{font-family:var(--mono);font-size:.68rem;font-weight:500;letter-spacing:.16em;text-transform:uppercase;color:var(--laton);margin-bottom:.9rem}
.pie ul{list-style:none;margin:0;padding:0}
.pie li a{display:inline-block;padding:.35rem 0;text-decoration:none;color:rgba(var(--hueso-rgb),.85)}
.pie li a:hover{color:var(--laton)}
.pie li .mono{color:rgba(var(--hueso-rgb),.45);margin-right:.4rem;font-size:.64rem}
.pie p{color:rgba(var(--hueso-rgb),.72);font-size:.9rem}
.aviso-demo{margin:2.5rem 0 0;border-top:1px solid rgba(var(--hueso-rgb),.16);padding-top:1.4rem}
.aviso-demo p{font-size:.8rem;color:rgba(var(--hueso-rgb),.62);max-width:62rem}
.aviso-demo a{color:var(--hueso)}

/* ---------- Menú: índice lateral en persiana ---------- */
.menu{position:fixed;left:0;right:0;bottom:0;top:calc(var(--franja) + var(--cab));z-index:45;display:flex;justify-content:flex-end;background:rgba(var(--grafito-rgb),0);transition:background .6s}
.menu[hidden]{display:none}
.menu.abierto{background:rgba(var(--grafito-rgb),.55)}
.menu-persiana{position:absolute;top:0;bottom:0;right:0;width:min(34rem,100%);display:grid;grid-template-rows:repeat(6,1fr)}
.menu-persiana i{background:var(--grafito);transform:scaleX(0);transform-origin:right;transition:transform .55s var(--obra)}
.menu.abierto .menu-persiana i{transform:scaleX(1)}
.menu-persiana i:nth-child(2){transition-delay:.04s}.menu-persiana i:nth-child(3){transition-delay:.08s}.menu-persiana i:nth-child(4){transition-delay:.12s}.menu-persiana i:nth-child(5){transition-delay:.16s}.menu-persiana i:nth-child(6){transition-delay:.2s}
.menu-hoja{position:relative;min-width:0;width:min(34rem,100%);height:100%;overflow:auto;background:var(--rejilla-osc);color:var(--hueso);padding:2rem clamp(1.25rem,4vw,2.6rem);display:grid;grid-template-rows:auto 1fr auto;gap:1.5rem;opacity:0;transition:opacity .4s .25s}
.menu.abierto .menu-hoja{opacity:1}
.menu-cab{display:flex;justify-content:space-between;font-family:var(--mono);font-size:.66rem;letter-spacing:.16em;text-transform:uppercase;color:var(--laton);border-bottom:1px solid rgba(var(--hueso-rgb),.2);padding-bottom:.8rem;margin:0}
.menu ol{list-style:none;margin:0;padding:0;align-self:center}
.menu nav a{display:grid;grid-template-columns:3.4rem minmax(0,1fr) 26px;align-items:center;gap:.6rem;padding:.9rem 0;text-decoration:none;border-bottom:1px solid rgba(var(--hueso-rgb),.12);transform:translateX(24px);opacity:0;transition:transform .7s var(--sale),opacity .5s,color .3s}
.menu.abierto nav a{transform:none;opacity:1}
.menu li:nth-child(1) a{transition-delay:.28s}.menu li:nth-child(2) a{transition-delay:.33s}.menu li:nth-child(3) a{transition-delay:.38s}.menu li:nth-child(4) a{transition-delay:.43s}
.menu .num{font-family:var(--mono);font-size:.7rem;letter-spacing:.12em;color:var(--laton)}
.menu .txt{font-size:clamp(1.5rem,6.2vw,2.8rem);overflow-wrap:anywhere;font-weight:800;font-stretch:125%;text-transform:uppercase;letter-spacing:-.01em;line-height:1}
.menu .fl{width:24px;height:24px;opacity:0;transform:translateX(-8px);transition:opacity .3s,transform .4s var(--obra)}
.menu nav a:hover,.menu nav a:focus-visible,.menu nav a[aria-current]{color:var(--laton)}
.menu nav a:hover .fl,.menu nav a:focus-visible .fl,.menu nav a[aria-current] .fl{opacity:1;transform:none}
.menu-pie p{font-size:.85rem;color:rgba(var(--hueso-rgb),.7);margin-bottom:1rem}
.menu-abierto body{overflow:hidden}

/* ---------- Aviso al tocar un botón del concepto ---------- */
.aviso-toque{visibility:hidden;position:fixed;left:var(--margen);bottom:1.2rem;z-index:80;background:var(--laton);color:var(--grafito);padding:.8rem 1.1rem;font-size:.86rem;font-weight:500;max-width:calc(100vw - 2 * var(--margen));width:max-content;transform:translateY(180%);transition:transform .5s var(--obra)}
.aviso-toque.ve{transform:none;visibility:visible}

/* ---------- Escritorio ---------- */
@media (min-width:900px){
  .planos{grid-template-columns:minmax(18rem,.8fr) 1.6fr;align-items:start}
  .planos-cab{position:sticky;top:calc(var(--franja) + var(--cab) + 2rem)}
  .planos-pasos{grid-column:2}
  .obras-cab{grid-template-columns:1fr 1fr;align-items:end}
  .obras-cab .seccion{grid-column:1/-1;margin:0}
  .lamina{grid-template-columns:1fr 1fr}
  .lamina:nth-child(even) .lamina-dib{order:2}
  .valores ol{grid-template-columns:repeat(3,1fr)}
  .pie-rejilla{grid-template-columns:1fr 1fr 1.3fr}
}
/* ---------- Móvil ---------- */
@media (max-width:899px){
  .portada{display:flex;flex-direction:column;align-items:stretch;min-height:auto}
  .portada-lienzo{position:relative;inset:auto;height:min(50svh,420px);flex:none}
  .rotulo{letter-spacing:.08em;font-size:.66rem}
  .portada::after{background:linear-gradient(transparent 40%,rgba(var(--grafito-rgb),.4))}
  .portada-texto{max-width:none;padding-top:.5rem;padding-bottom:1.6rem}
  .cajetin{position:relative;left:auto;right:auto;bottom:auto;margin:0 var(--margen) 1.8rem;grid-template-columns:1fr 1fr}
  .cajetin>div:nth-child(3){border-left:0}
  .cajetin>div:nth-child(n+3){border-top:1px solid rgba(var(--hueso-rgb),.2)}
  .esc-portada{top:.8rem}
  .cab-nav{display:none}
  .tabla-obras .fila a{grid-template-columns:3.4rem 1fr 24px;gap:.9rem}
  .dibujo.mini{display:none}
  .fase{grid-template-columns:1fr;gap:.7rem}
  .diagrama-rejilla{left:clamp(1.2rem,3vw,2.5rem)}
  .diagrama-hoy{left:calc(clamp(1.2rem,3vw,2.5rem) + (100% - 2 * clamp(1.2rem,3vw,2.5rem)) * var(--hoy,0))}
  .planos-pasos{grid-template-columns:1fr}
}
@media (max-width:560px){
  .franja-demo{font-size:.58rem;letter-spacing:.05em;padding:.3rem .6rem}
  .marca-s{display:none}
  .boton-obra.en-cab{display:none}
  .presu-t{padding-right:0;margin-top:2.6rem}
  .partidas td{font-size:.85rem}
  .titulo-pagina{font-size:clamp(1.9rem,8.4vw,2.6rem);overflow-wrap:anywhere}
}
/* ---------- Movimiento reducido: todo en su sitio, quieto ---------- */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
  .nivel{display:none}
  .menu-persiana i{transform:scaleX(1)}
  .menu-hoja,.menu nav a{opacity:1;transform:none}
}