/* Escotillas Bilco para todo México — estilos 2026 */
:root{
  --navy:#0c1a29;--navy-2:#122538;--navy-3:#1b3350;
  --rojo:#d0202a;--rojo-2:#ad1820;
  --fondo:#f3f5f8;--blanco:#fff;--texto:#122030;--suave:#586777;--linea:#dde3ea;
  --verde-wa:#25d366;
  --fuente:"Manrope",system-ui,-apple-system,"Segoe UI",Arial,sans-serif;
  --ancho:1240px;--radio:14px;
  --sombra:0 1px 2px rgba(12,26,41,.06),0 8px 24px rgba(12,26,41,.07);
  --sombra-alta:0 2px 4px rgba(12,26,41,.08),0 22px 48px rgba(12,26,41,.16);
  --ease:cubic-bezier(.2,.7,.2,1);
  box-sizing:border-box;
  padding-top:env(safe-area-inset-top,0px);padding-bottom:env(safe-area-inset-bottom,0px);
}
*,*::before,*::after{box-sizing:inherit}
html{background:var(--navy);scroll-behavior:smooth;scroll-padding-top:calc(96px + env(safe-area-inset-top,0px))}
body{margin:0;font-family:var(--fuente);color:var(--texto);background:var(--fondo);line-height:1.6;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
img{max-width:100%;height:auto;display:block}
picture{display:contents}
a{color:inherit}
:focus-visible{outline:3px solid var(--rojo);outline-offset:3px;border-radius:4px}
.envoltura{width:min(var(--ancho),100% - 48px);margin-inline:auto}
.saltar{position:absolute;left:-999px;top:0;background:var(--rojo);color:#fff;padding:10px 16px;z-index:200}
.saltar:focus{left:12px;top:12px}
h1,h2,h3{letter-spacing:-.02em;line-height:1.1}

/* ---------- Encabezado ---------- */
.encabezado{position:sticky;top:0;z-index:60;background:rgba(12,26,41,.97);backdrop-filter:saturate(140%) blur(10px);-webkit-backdrop-filter:saturate(140%) blur(10px);border-bottom:1px solid rgba(255,255,255,.07);transition:box-shadow .3s var(--ease),background-color .3s}
.encabezado.scroll{box-shadow:0 10px 30px rgba(0,0,0,.25)}
.encabezado .envoltura{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:84px;transition:min-height .3s var(--ease)}
.encabezado.scroll .envoltura{min-height:68px}
.marca{display:flex;align-items:center;flex:none}
.marca img{width:140px;height:auto;transition:width .3s var(--ease)}
.encabezado.scroll .marca img{width:118px}
.nav>ul{list-style:none;margin:0;padding:0;display:flex;align-items:center;gap:2px}
.nav a,.nav button.sub-btn{display:flex;align-items:center;gap:6px;font:inherit;font-weight:600;font-size:.95rem;color:#d5dde6;text-decoration:none;padding:10px 14px;border-radius:8px;background:none;border:0;cursor:pointer;transition:color .2s,background-color .2s}
.nav a:hover,.nav button.sub-btn:hover,.nav .abierto>button.sub-btn{color:#fff;background:rgba(255,255,255,.07)}
.nav a[aria-current="page"],.nav .activo>button.sub-btn{color:#fff}
.nav a[aria-current="page"]::after{content:"";display:block}
.sub-btn svg{width:12px;height:12px;transition:transform .25s var(--ease)}
.tiene-sub{position:relative}
.submenu{position:absolute;top:calc(100% + 10px);left:50%;transform:translate(-50%,8px);min-width:560px;background:#fff;border-radius:var(--radio);box-shadow:var(--sombra-alta);padding:14px;display:grid;grid-template-columns:1fr 1fr;gap:4px;opacity:0;visibility:hidden;transition:opacity .22s var(--ease),transform .22s var(--ease),visibility .22s}
.submenu::before{content:"";position:absolute;left:0;right:0;top:-12px;height:12px}
.tiene-sub.abierto .submenu{opacity:1;visibility:visible;transform:translate(-50%,0)}
.tiene-sub.abierto .sub-btn svg{transform:rotate(180deg)}
.submenu a{display:flex;align-items:center;gap:12px;color:var(--texto);padding:10px 12px;font-size:.93rem;border-radius:10px}
.submenu a:hover{background:var(--fondo);color:var(--texto)}
.submenu a[aria-current="page"]{background:#fdeced;color:var(--rojo-2)}
.submenu img{width:40px;height:40px;object-fit:contain;border-radius:8px;background:#fff;border:1px solid var(--linea);flex:none}
.nav .nav-cta{background:var(--rojo);color:#fff;margin-left:10px;padding:11px 18px}
.nav .nav-cta:hover{background:var(--rojo-2);color:#fff}
.menu-btn{display:none;width:46px;height:46px;border-radius:10px;border:1px solid rgba(255,255,255,.2);background:none;color:#fff;cursor:pointer;place-items:center}
.menu-btn svg{width:22px;height:22px}
.menu-btn .x{display:none}
.menu-btn[aria-expanded="true"] .x{display:block}
.menu-btn[aria-expanded="true"] .h{display:none}
@media (max-width:1080px){
  .menu-btn{display:grid}
  .nav{position:fixed;left:0;right:0;top:var(--alto-enc,84px);bottom:0;background:var(--navy);overflow-y:auto;transform:translateY(-12px);opacity:0;visibility:hidden;transition:opacity .25s var(--ease),transform .25s var(--ease),visibility .25s;padding-bottom:calc(24px + env(safe-area-inset-bottom,0px))}
  .nav.abierto{opacity:1;visibility:visible;transform:none}
  .nav>ul{flex-direction:column;align-items:stretch;padding:12px 24px;gap:0}
  .nav>ul>li{border-bottom:1px solid rgba(255,255,255,.08)}
  .nav a,.nav button.sub-btn{padding:16px 4px;font-size:1.08rem;width:100%;justify-content:space-between;border-radius:0}
  .nav a:hover,.nav button.sub-btn:hover{background:none}
  .submenu{position:static;transform:none;min-width:0;background:transparent;box-shadow:none;padding:0 0 12px;grid-template-columns:1fr;opacity:1;visibility:visible;display:none}
  .tiene-sub.abierto .submenu{display:grid;transform:none}
  .submenu a{color:#d5dde6;padding:10px 4px}
  .submenu a:hover{background:rgba(255,255,255,.05);color:#fff}
  .submenu a[aria-current="page"]{background:rgba(208,32,42,.15);color:#fff}
  .nav .nav-cta{margin:18px 0 0;justify-content:center;border-radius:10px}
  .nav>ul>li:last-child{border-bottom:0}
}

/* ---------- Botones ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;font:inherit;font-weight:700;font-size:1rem;line-height:1.2;text-decoration:none;padding:14px 22px;border-radius:10px;border:1.5px solid transparent;cursor:pointer;transition:transform .2s var(--ease),background-color .2s,color .2s,border-color .2s,box-shadow .2s}
.btn:hover{transform:translateY(-2px)}
.btn:active{transform:translateY(0)}
.btn svg,.btn img{width:20px;height:20px;flex:none}
.btn-rojo{background:var(--rojo);color:#fff;box-shadow:0 8px 20px rgba(208,32,42,.28)}
.btn-rojo:hover{background:var(--rojo-2)}
.btn-wa{background:var(--verde-wa);color:#06381b;box-shadow:0 8px 20px rgba(37,211,102,.25)}
.btn-wa:hover{background:#1fbf5b}
.btn-claro{border-color:rgba(255,255,255,.35);color:#fff}
.btn-claro:hover{border-color:#fff;background:rgba(255,255,255,.08)}
.btn-borde{border-color:var(--linea);color:var(--texto);background:#fff}
.btn-borde:hover{border-color:var(--texto)}
.btn-chico{padding:10px 14px;font-size:.9rem;border-radius:8px}

/* ---------- Portada inicio ---------- */
.portada{position:relative;overflow:hidden;color:#fff;background:radial-gradient(1200px 600px at 85% 20%,#1d3a5c 0%,transparent 60%),linear-gradient(160deg,var(--navy) 0%,#0f2236 60%,#0a1622 100%);isolation:isolate}
.portada::before{content:"";position:absolute;inset:0;z-index:-1;background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);background-size:56px 56px;mask-image:linear-gradient(180deg,#000 0%,transparent 90%);-webkit-mask-image:linear-gradient(180deg,#000 0%,transparent 90%)}
.portada .envoltura{display:grid;grid-template-columns:1.05fr 1fr;gap:48px;align-items:center;padding-block:clamp(56px,9vw,112px) clamp(64px,9vw,120px)}
.etiqueta{display:inline-flex;align-items:center;gap:10px;font-weight:700;font-size:.82rem;letter-spacing:.12em;text-transform:uppercase;color:#ff9aa0;margin:0 0 20px}
.etiqueta::before{content:"";width:28px;height:2px;background:var(--rojo)}
.portada h1{margin:0;font-weight:800;font-size:clamp(2.6rem,6vw,4.8rem);line-height:1.02;max-width:12ch;text-wrap:balance}
.portada h1 span{color:#ff5a62}
.portada .sub{margin:22px 0 0;font-size:clamp(1.05rem,1.6vw,1.25rem);color:#b9c6d4;max-width:46ch}
.acciones{display:flex;flex-wrap:wrap;gap:12px;margin-top:34px}
.collage{position:relative;height:clamp(340px,40vw,500px)}
.collage figure{position:absolute;margin:0;background:#fff;border-radius:22px;box-shadow:0 30px 60px rgba(0,0,0,.35);overflow:hidden;animation:flotar 7s ease-in-out infinite}
.collage figure img{width:100%;height:100%;object-fit:contain}
.collage .c1{width:58%;aspect-ratio:1;right:6%;top:4%;z-index:2}
.collage .c2{width:40%;aspect-ratio:1;left:2%;top:40%;animation-delay:-2.3s;z-index:3}
.collage .c3{width:34%;aspect-ratio:1;right:0;bottom:0;animation-delay:-4.6s;z-index:1}
.collage::after{content:"";position:absolute;width:62%;aspect-ratio:1;left:14%;top:12%;border-radius:50%;background:radial-gradient(circle,rgba(208,32,42,.35),transparent 70%);filter:blur(30px);z-index:0}
@keyframes flotar{0%,100%{transform:translateY(0)}50%{transform:translateY(-14px)}}
.sellos{display:flex;flex-wrap:wrap;gap:10px 28px;margin-top:40px;padding-top:28px;border-top:1px solid rgba(255,255,255,.12);list-style:none;padding-left:0}
.sellos li{display:flex;align-items:center;gap:10px;color:#cfd8e2;font-weight:600;font-size:.95rem}
.sellos svg{width:20px;height:20px;color:#ff5a62;flex:none}

/* ---------- Cabecera interior ---------- */
.cabecera{position:relative;overflow:hidden;color:#fff;background:linear-gradient(160deg,var(--navy) 0%,#11263b 100%);isolation:isolate}
.cabecera::before{content:"";position:absolute;inset:0;z-index:-1;background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);background-size:48px 48px;mask-image:linear-gradient(90deg,transparent,#000 60%);-webkit-mask-image:linear-gradient(90deg,transparent,#000 60%)}
.cabecera .envoltura{display:grid;grid-template-columns:1.4fr .8fr;gap:40px;align-items:center;padding-block:clamp(40px,6vw,72px)}
.cabecera.sin-img .envoltura{grid-template-columns:1fr}
.migas{font-size:.88rem;color:#93a4b6;margin:0 0 18px}
.migas ol{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:8px}
.migas li+li::before{content:"›";margin-right:8px;color:#5f7389}
.migas a{text-decoration:none;color:#c9d4df}
.migas a:hover{color:#fff}
.cabecera h1{margin:0;font-weight:800;font-size:clamp(2rem,4.6vw,3.4rem);text-wrap:balance}
.cabecera .intro{margin:18px 0 0;color:#b9c6d4;font-size:1.08rem;max-width:62ch}
.cabecera .intro p{margin:0 0 10px}
.cabecera-img{justify-self:end;width:min(100%,300px);aspect-ratio:1;background:#fff;border-radius:22px;box-shadow:0 30px 60px rgba(0,0,0,.35);overflow:hidden;animation:flotar 7s ease-in-out infinite}
.cabecera-img img{width:100%;height:100%;object-fit:contain}

/* ---------- Secciones ---------- */
.seccion{padding-block:clamp(56px,8vw,104px)}
.seccion.blanca{background:#fff}
.titulo-sec{display:flex;justify-content:space-between;align-items:end;gap:20px 40px;flex-wrap:wrap;margin-bottom:40px}
.titulo-sec h2{margin:0;font-weight:800;font-size:clamp(1.8rem,3.4vw,2.6rem);max-width:20ch}
.titulo-sec p{margin:0;color:var(--suave);max-width:50ch}
.pre{display:block;font-size:.8rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--rojo);margin-bottom:10px}

/* Tarjetas de categoría */
.rejilla{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:22px}
.tarjeta{position:relative;display:flex;flex-direction:column;height:100%;background:#fff;border-radius:var(--radio);box-shadow:var(--sombra);text-decoration:none;overflow:hidden;transition:transform .35s var(--ease),box-shadow .35s var(--ease)}
.tarjeta:hover{transform:translateY(-6px);box-shadow:var(--sombra-alta)}
.tarjeta-img{aspect-ratio:4/3;display:grid;place-items:center;background:linear-gradient(180deg,#fff,#f4f6f9);padding:18px;overflow:hidden}
.tarjeta-img img{width:100%;height:100%;object-fit:contain;transition:transform .6s var(--ease)}
.tarjeta:hover .tarjeta-img img{transform:scale(1.06)}
.tarjeta-cuerpo{padding:20px 22px 22px;display:flex;flex-direction:column;gap:8px;flex:1}
.tarjeta h3{margin:0;font-size:1.18rem;font-weight:800}
.tarjeta p{margin:0;color:var(--suave);font-size:.95rem}
.tarjeta .mas{margin-top:auto;padding-top:12px;display:inline-flex;align-items:center;gap:8px;font-weight:700;color:var(--rojo);font-size:.93rem}
.tarjeta .mas svg{width:16px;height:16px;transition:transform .25s var(--ease)}
.tarjeta:hover .mas svg{transform:translateX(4px)}

/* Características */
.caract{display:grid;grid-template-columns:.8fr 1.2fr;gap:clamp(28px,5vw,72px);align-items:start}
.caract h2{margin:0;font-weight:800;font-size:clamp(1.7rem,3vw,2.3rem)}
.caract ul{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:14px}
.caract li{display:flex;gap:14px;align-items:flex-start;background:#fff;border-radius:12px;padding:18px;box-shadow:var(--sombra);font-size:.98rem}
.caract li svg{width:24px;height:24px;flex:none;color:var(--rojo);margin-top:1px}

/* Modelos / productos */
.modelos{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:22px;list-style:none;margin:0;padding:0}
.modelo{display:flex;flex-direction:column;background:#fff;border-radius:var(--radio);box-shadow:var(--sombra);overflow:hidden;height:100%;transition:transform .35s var(--ease),box-shadow .35s var(--ease)}
.modelo:hover{transform:translateY(-4px);box-shadow:var(--sombra-alta)}
.modelo-img{aspect-ratio:4/3;display:grid;place-items:center;padding:20px;background:linear-gradient(180deg,#fff,#f4f6f9);overflow:hidden}
.modelo-img img{width:100%;height:100%;object-fit:contain;transition:transform .6s var(--ease)}
.modelo:hover .modelo-img img{transform:scale(1.05)}
.modelo-cuerpo{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.modelo h3{margin:0;font-size:1.25rem;font-weight:800}
.modelo p{margin:0;color:var(--suave);font-size:.96rem}
.modelo .acciones{margin-top:auto;padding-top:12px;gap:8px}

/* Galería */
.galeria{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:14px;list-style:none;margin:0;padding:0}
.galeria button{display:block;width:100%;padding:0;border:0;background:#fff;border-radius:12px;overflow:hidden;cursor:zoom-in;box-shadow:var(--sombra);aspect-ratio:4/3}
.galeria img{width:100%;height:100%;object-fit:cover;transition:transform .6s var(--ease)}
.galeria button:hover img{transform:scale(1.06)}
.visor-img{border:0;padding:0;background:transparent;max-width:min(1100px,94vw);max-height:92vh}
.visor-img::backdrop{background:rgba(6,14,22,.88);backdrop-filter:blur(4px)}
.visor-img img{max-width:100%;max-height:86vh;border-radius:12px;margin:auto}
.visor-img .cerrar{position:fixed;top:calc(16px + env(safe-area-inset-top,0px));right:16px;width:48px;height:48px;border-radius:50%;border:0;background:#fff;color:#000;font-size:1.6rem;cursor:pointer;line-height:1}
.visor-img .nav-g{position:fixed;top:50%;transform:translateY(-50%);width:48px;height:48px;border-radius:50%;border:0;background:rgba(255,255,255,.9);cursor:pointer;font-size:1.4rem}
.visor-img .prev{left:14px}.visor-img .next{right:14px}

/* Documento / catálogo */
.doc{display:grid;grid-template-columns:1fr 1.4fr;gap:clamp(24px,4vw,56px);align-items:center;background:#fff;border-radius:20px;box-shadow:var(--sombra);padding:clamp(24px,4vw,48px)}
.doc h2{margin:0 0 12px;font-weight:800;font-size:clamp(1.6rem,3vw,2.2rem)}
.doc p{color:var(--suave);margin:0 0 12px}
.visor-pdf{border-radius:14px;overflow:hidden;border:1px solid var(--linea);background:#e9edf2}
.visor-pdf iframe{display:block;width:100%;height:min(75vh,760px);border:0}

/* Videos */
.videos{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:22px;list-style:none;margin:0;padding:0}
.video{position:relative;aspect-ratio:16/9;border-radius:var(--radio);overflow:hidden;background:#000;box-shadow:var(--sombra)}
.video button{position:absolute;inset:0;width:100%;height:100%;border:0;padding:0;cursor:pointer;background:#000}
.video button img{width:100%;height:100%;object-fit:cover;opacity:.85;transition:opacity .3s,transform .6s var(--ease)}
.video button:hover img{opacity:1;transform:scale(1.04)}
.video .play{position:absolute;left:50%;top:50%;width:72px;height:72px;margin:-36px 0 0 -36px;border-radius:50%;background:var(--rojo);display:grid;place-items:center;box-shadow:0 10px 30px rgba(0,0,0,.4);transition:transform .25s var(--ease)}
.video button:hover .play{transform:scale(1.1)}
.video .play svg{width:28px;height:28px;color:#fff;margin-left:4px}
.video iframe{position:absolute;inset:0;width:100%;height:100%;border:0}

/* Texto largo (aviso) */
.prosa{max-width:78ch;background:#fff;border-radius:20px;box-shadow:var(--sombra);padding:clamp(24px,5vw,56px)}
.prosa h2{font-size:1.15rem;font-weight:800;margin:32px 0 10px}
.prosa h2:first-child{margin-top:0}
.prosa p{margin:0 0 14px;color:#2a3947}
.prosa ul{margin:0 0 16px;padding-left:22px}
.prosa li{margin-bottom:6px}

/* ---------- Contacto ---------- */
.contacto{display:grid;grid-template-columns:.9fr 1.1fr;gap:clamp(28px,5vw,64px);align-items:start}
.datos{list-style:none;margin:0 0 24px;padding:0;display:grid;gap:12px}
.datos li{display:flex;gap:14px;align-items:flex-start;background:#fff;border-radius:12px;padding:16px 18px;box-shadow:var(--sombra)}
.datos svg{width:22px;height:22px;flex:none;color:var(--rojo);margin-top:2px}
.datos small{display:block;color:var(--suave);font-size:.8rem;font-weight:600;text-transform:uppercase;letter-spacing:.08em}
.datos a,.datos span.v{font-weight:700;text-decoration:none;font-size:1.05rem}
.datos a:hover{color:var(--rojo)}
.mapa{border-radius:14px;overflow:hidden;box-shadow:var(--sombra);aspect-ratio:4/3;background:#e6ebf0}
.mapa iframe{width:100%;height:100%;border:0;display:block}
.formulario{background:#fff;border-radius:20px;box-shadow:var(--sombra);padding:clamp(22px,4vw,40px)}
.formulario h2{margin:0 0 6px;font-weight:800;font-size:1.7rem}
.formulario>p{margin:0 0 22px;color:var(--suave)}
.campo{display:flex;flex-direction:column;gap:6px;margin-bottom:16px}
.campo label{font-weight:700;font-size:.9rem}
.campo input,.campo select,.campo textarea{font:inherit;font-size:1rem;padding:13px 14px;border:1.5px solid var(--linea);border-radius:10px;background:#fafbfc;color:var(--texto);width:100%;transition:border-color .2s,box-shadow .2s,background-color .2s}
.campo input:focus,.campo select:focus,.campo textarea:focus{outline:none;border-color:var(--navy-3);background:#fff;box-shadow:0 0 0 4px rgba(27,51,80,.12)}
.campo textarea{min-height:130px;resize:vertical}
.fila-2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.trampa{position:absolute!important;left:-10000px!important;width:1px;height:1px;overflow:hidden}
.nota{font-size:.85rem;color:var(--suave);margin:6px 0 18px}
.aviso-form{display:none;margin-top:16px;padding:14px 16px;border-radius:10px;background:#eef8f1;color:#12502a;font-size:.93rem}
.aviso-form.visible{display:block;animation:entrar .4s var(--ease)}
@keyframes entrar{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}

/* ---------- CTA ---------- */
.cta{position:relative;overflow:hidden;background:linear-gradient(120deg,var(--rojo-2),var(--rojo) 55%,#e2434b);color:#fff;isolation:isolate}
.cta::before{content:"";position:absolute;inset:0;z-index:-1;background-image:linear-gradient(rgba(255,255,255,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.07) 1px,transparent 1px);background-size:40px 40px}
.cta .envoltura{display:flex;justify-content:space-between;align-items:center;gap:28px;flex-wrap:wrap;padding-block:clamp(44px,6vw,72px)}
.cta h2{margin:0;font-weight:800;font-size:clamp(1.7rem,3.4vw,2.6rem);max-width:20ch}
.cta p{margin:10px 0 0;color:#ffe3e5;max-width:52ch}
.cta .btn-blanco{background:#fff;color:var(--rojo-2)}
.cta .btn-blanco:hover{background:#fff5f5}

/* ---------- Pie ---------- */
.pie{background:var(--navy);color:#9aabbd;padding-block:64px 32px;font-size:.95rem}
.pie-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr 1fr;gap:36px}
.pie h2{color:#fff;font-size:.95rem;font-weight:800;margin:0 0 16px}
.pie ul{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.pie a{text-decoration:none;color:#cfd8e2;transition:color .2s}
.pie a:hover{color:#fff}
.pie .marca img{width:150px}
.pie-desc{margin:18px 0 0;max-width:34ch}
.pie-legal{margin-top:48px;padding-top:24px;border-top:1px solid rgba(255,255,255,.08);display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:.86rem}

/* ---------- Botones flotantes ---------- */
.flotantes{position:fixed;z-index:70;right:20px;bottom:calc(20px + env(safe-area-inset-bottom,0px));display:flex;flex-direction:column;gap:12px;align-items:flex-end}
.flotante{position:relative;display:grid;place-items:center;width:62px;height:62px;border-radius:50%;text-decoration:none;box-shadow:0 10px 26px rgba(0,0,0,.28);transition:transform .25s var(--ease)}
.flotante:hover{transform:scale(1.08)}
.flotante.wa{background:var(--verde-wa)}
.flotante.wa img{width:62px;height:62px;border-radius:50%}
.flotante.wa::before{content:"";position:absolute;inset:0;border-radius:50%;box-shadow:0 0 0 0 rgba(37,211,102,.55);animation:pulso 2.4s ease-out infinite}
@keyframes pulso{0%{box-shadow:0 0 0 0 rgba(37,211,102,.5)}70%{box-shadow:0 0 0 16px rgba(37,211,102,0)}100%{box-shadow:0 0 0 0 rgba(37,211,102,0)}}
.flotante.tel{background:var(--rojo);color:#fff;display:none}
.flotante.tel svg{width:26px;height:26px}
.flotante .etiqueta-f{position:absolute;right:76px;top:50%;transform:translate(8px,-50%);white-space:nowrap;background:#fff;color:var(--texto);font-size:.9rem;font-weight:700;padding:9px 14px;border-radius:10px;box-shadow:var(--sombra);opacity:0;pointer-events:none;transition:opacity .2s,transform .2s var(--ease)}
.flotante:hover .etiqueta-f,.flotante:focus-visible .etiqueta-f{opacity:1;transform:translate(0,-50%)}

/* ---------- Animación de entrada ---------- */
.js .revelar{opacity:0;transform:translateY(26px);transition:opacity .8s var(--ease),transform .8s var(--ease);transition-delay:var(--d,0s)}
.js .revelar.visto{opacity:1;transform:none}
.js .portada .anim{opacity:0;transform:translateY(20px);animation:subir .9s var(--ease) forwards;animation-delay:var(--d,0s)}
@keyframes subir{to{opacity:1;transform:none}}

/* ---------- Responsivo ---------- */
@media (max-width:1080px){
  .flotante.tel{display:grid}
  .flotante .etiqueta-f{display:none}
  .flotante,.flotante.wa img{width:56px;height:56px}
}
@media (max-width:960px){
  .portada .envoltura,.cabecera .envoltura,.caract,.doc,.contacto{grid-template-columns:1fr}
  .collage{height:360px;max-width:520px;width:100%;margin-inline:auto}
  .cabecera-img{justify-self:start;width:180px}
  .pie-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:620px){
  .envoltura{width:min(var(--ancho),100% - 36px)}
  .caract ul,.fila-2{grid-template-columns:1fr}
  .rejilla{grid-template-columns:1fr 1fr;gap:12px}
  .tarjeta-img{padding:10px}
  .tarjeta-cuerpo{padding:14px}
  .tarjeta h3{font-size:1rem}
  .tarjeta p{display:none}
  .collage{height:300px}
  .pie-grid{grid-template-columns:1fr}
  .marca img{width:118px}
  .cabecera-img{display:none}
  .modelo .acciones .btn{flex:1}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  .js .revelar,.js .portada .anim{opacity:1;transform:none}
}
@media print{.encabezado,.flotantes,.cta,.pie{display:none}}

/* Ajuste de imágenes dentro de marcos de proporción fija */
.tarjeta-img,.modelo-img,.cabecera-img,.collage figure{display:flex;align-items:center;justify-content:center}
.tarjeta-img img,.modelo-img img,.cabecera-img img,.collage figure img{width:auto;height:auto;max-width:100%;max-height:100%;object-fit:contain}
.galeria button{display:flex}
.tarjeta-img,.modelo-img{background:#fff}
.btn-chico{white-space:nowrap}
@media (max-width:620px){.cabecera-img{display:none}}
@media (max-width:1080px){.encabezado{backdrop-filter:none;-webkit-backdrop-filter:none;background:var(--navy)}}
@media (max-width:1080px){.nav .submenu a{justify-content:flex-start}}
body.menu-abierto .flotantes{opacity:0;pointer-events:none}

/* Galería: las fotos originales miden 160 px; se muestran a un tamaño que no las distorsione */
.galeria{grid-template-columns:repeat(auto-fill,minmax(150px,190px));justify-content:start;gap:12px}
.galeria button{aspect-ratio:160/126}
.visor-img img{width:auto;max-width:min(400px,90vw);height:auto;image-rendering:auto}
@media (max-width:620px){.galeria{grid-template-columns:repeat(2,1fr)}}

/* ---------- Protección de contenido (evita copiar y pegar) ---------- */
body{-webkit-user-select:none;-moz-user-select:none;user-select:none;-webkit-touch-callout:none}
input,textarea,select,[contenteditable],.copiable,.copiable *{-webkit-user-select:text;-moz-user-select:text;user-select:text;-webkit-touch-callout:default}
img{-webkit-user-drag:none;user-drag:none}
.pie{padding-bottom:calc(104px + env(safe-area-inset-bottom,0px))}