:root{
  --noche:#10243b;--azul:#173452;--cian:#4db7e5;--amarillo:#ffd84d;
  --papel:#f4f7f9;--blanco:#fff;--tinta:#25384a;--suave:#718393;--linea:#d5dfe7;
}
*{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;align-items:center;gap:1rem;padding:.82rem 1.2rem;background:#10243bf2;color:#fff;border-bottom:1px solid #29445f}
.marca{font-weight:900;letter-spacing:.06em}.nav{display:flex;justify-content:center;gap:.4rem;flex-wrap:wrap}.nav a{font-size:.72rem;padding:.58rem .72rem;border:1px solid transparent;border-radius:999px}.nav a:hover,.nav a.activo{border-color:var(--amarillo);color:var(--amarillo)}.estado{font-size:.68rem;color:#b7cce0}
.linea-energia{height:5px;background:linear-gradient(90deg,var(--amarillo),var(--cian),var(--amarillo));background-size:200% 100%;animation:mover 8s linear infinite}
@keyframes mover{to{background-position:200% 0}}

.portada{min-height:84vh;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:#2578a2}
h1,h2,h3{letter-spacing:-.04em}h1{font-size:clamp(4rem,7vw,7rem);line-height:.86;margin:.6rem 0 1.2rem}
.portada p,.seccion p{color:var(--suave);max-width:650px}.portada img{border-radius:28px;border:1px solid var(--noche)}
.acciones{display:flex;gap:.6rem;flex-wrap:wrap}.boton{display:inline-flex;padding:.82rem .95rem;border:1px solid var(--noche);background:#fff;font-weight:800;cursor:pointer;border-radius:10px}.boton.principal{background:var(--noche);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:#2578a2}.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-size:clamp(2.8rem,5vw,5rem);line-height:.94;margin:.3rem 0}

.panel-circuitos{display:grid;grid-template-columns:1.1fr .9fr;gap:1rem;align-items:start}
.diagrama{position:relative;min-height:540px;background:var(--noche);border-radius:26px;overflow:hidden}
.trazo{position:absolute;background:#325674;height:4px;transform-origin:left center}.t1{left:20%;top:50%;width:30%}.t2{left:50%;top:50%;width:30%}.t3{left:50%;top:50%;width:4px;height:26%;transform:none}.t4{left:50%;top:24%;width:4px;height:26%;transform:none}
.nodo{position:absolute;width:120px;height:120px;border-radius:50%;border:2px solid #385c79;background:#173452;color:#fff;display:grid;place-items:center;text-align:center;font-weight:800;cursor:pointer}.nodo.activo{background:var(--amarillo);color:var(--noche);border-color:var(--amarillo)}
.n-sala{left:8%;top:39%}.n-cocina{right:8%;top:39%}.n-dormitorio{left:44%;top:7%}.n-estudio{left:44%;bottom:7%}
.tarjeta-zona{background:#fff;border:1px solid var(--linea);border-radius:24px;padding:1.4rem;position:sticky;top:90px}.tarjeta-zona strong{display:block;font-size:2rem;color:var(--noche)}.tarjeta-zona ul{padding-left:1.1rem;color:var(--suave)}

.servicios{display:grid;grid-template-columns:repeat(4,1fr);gap:1rem}.servicio{background:#fff;border:1px solid var(--linea);padding:1.2rem;border-radius:18px}.servicio b{color:#2578a2}.servicio p{color:var(--suave)}.servicio .icono{width:52px;height:52px;border-radius:14px;background:#fff2b8;display:grid;place-items:center;font-size:1.4rem;margin-bottom:.8rem}

.selector{display:grid;grid-template-columns:.8fr 1.2fr;gap:4vw}.panel-selector{background:#fff;border:1px solid var(--linea);padding:1.4rem;border-radius:22px}.grupo{margin:1rem 0}.grupo>span{display:block;font-size:.7rem;font-weight:800;color:var(--suave);margin-bottom:.5rem}.opciones{display:flex;gap:.45rem;flex-wrap:wrap}.opciones button{border:1px solid var(--linea);background:#fff;padding:.65rem .8rem;cursor:pointer}.opciones button.activo{background:var(--azul);color:#fff}
.resultado{margin-top:1rem;padding:1rem;background:#edf5fa;border:1px solid var(--linea);border-radius:14px}.resultado strong{display:block;font-size:1.7rem;color:var(--noche)}.resultado p{margin-bottom:0}
.agenda{display:grid;grid-template-columns:repeat(4,1fr);gap:.8rem}.turno{background:#fff;border:1px solid var(--linea);padding:1rem;border-radius:16px}.turno b{display:block;color:#2578a2}.turno span{color:var(--suave);font-size:.78rem}
.proyectos{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem}.proyecto{background:#fff;border:1px solid var(--linea);border-radius:18px;overflow:hidden}.proyecto img{aspect-ratio:4/3;object-fit:cover}.proyecto div{padding:1rem}.proyecto p{color:var(--suave)}
.cabecera-pagina{padding:7vw 5vw 3vw;background:#eaf1f6;border-bottom:1px solid var(--linea)}.cabecera-pagina h1{font-size:clamp(3.7rem,7vw,7rem)}
.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;border-radius:10px}.estado-formulario{min-height:1.2em;color:#2578a2;font-weight:800}
.aviso{padding:1rem;background:#fff6cf;border:1px solid #e6cd68;border-radius:14px;color:#63551f}
.pie{padding:3rem 5vw;border-top:1px solid var(--linea);display:grid;grid-template-columns:1.2fr .8fr .8fr;gap:2rem;background:#fff}.pie p,.pie a{display:block;color:var(--suave);font-size:.8rem;margin:.25rem 0}

@media(max-width:980px){.portada,.panel-circuitos,.selector{grid-template-columns:1fr}.cabecera-seccion{grid-template-columns:1fr}.tarjeta-zona{position:static}.servicios,.agenda{grid-template-columns:1fr 1fr}.proyectos{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}.estado{display:none}.portada,.seccion,.cabecera-pagina{padding-left:20px;padding-right:20px}.resumen,.servicios,.agenda,.proyectos{grid-template-columns:1fr}.diagrama{min-height:500px}.nodo{width:95px;height:95px;font-size:.72rem}.n-sala{left:4%}.n-cocina{right:4%}.n-dormitorio,.n-estudio{left:39%}.pie{grid-template-columns:1fr}}