/* Felton — estilos del prototipo */
:root{
  --negro:#0F1013; --rojo:#E12B2D; --accion:#D0222A; --accion-hover:#B81D24; --rojo-texto:#B01E24; --rojo-claro:#FF5A5F;
  --niebla:#F5F5F7; --linea:#E8E8ED; --linea-2:#D2D2D7; --acero:#6E6E73; --oscuro:#111113; --oscuro-2:#1D1D1F; --gris-oscuro:#A1A1A6;
  --enlace:#0066CC; --wa:#128C4A;
  --r-lg:28px; --r-md:20px; --r-sm:14px;
  --ease:cubic-bezier(.22,1,.36,1);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:64px} /* deja libre el alto de la barra fija al saltar a una sección */
body{margin:0;font:400 1rem/1.5 Inter,system-ui,-apple-system,"Segoe UI",sans-serif;color:var(--negro);background:#fff;-webkit-font-smoothing:antialiased}
img,svg{display:block}
a{color:var(--enlace);text-decoration:none}
a:hover{text-decoration:underline}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:3px solid var(--enlace);outline-offset:2px;border-radius:8px}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* tipografía */
.kicker{margin:0;font-size:.95rem;font-weight:600;color:var(--rojo-texto)}
.display{margin:0;font-size:clamp(2.6rem,5.4vw,4.5rem);line-height:1.03;letter-spacing:-.035em;font-weight:800}
.h2{margin:0;font-size:clamp(2rem,3.6vw,3rem);line-height:1.08;letter-spacing:-.03em;font-weight:700}
.h3{margin:0;font-size:1.5rem;line-height:1.2;letter-spacing:-.02em;font-weight:600}
.lead{margin:0;font-size:1.2rem;line-height:1.5;color:var(--acero)}
.muted{color:var(--acero)}

/* botones: respuesta inmediata al presionar */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:52px;padding:0 28px;border-radius:26px;border:0;font-weight:700;font-size:1.05rem;cursor:pointer;text-decoration:none!important;transition:transform .1s ease-out,background-color .15s}
.btn:active{transform:scale(.97)}
.btn-accion{background:var(--accion);color:#fff}
.btn-accion:hover{background:var(--accion-hover)}
.btn-suave{background:var(--niebla);color:var(--negro);font-weight:600}
.btn-suave:hover{background:#EBEBF0}
.btn-negro{background:var(--negro);color:#fff}
.btn-sm{min-height:44px;padding:0 18px;font-size:.92rem;border-radius:22px}
.press{transition:transform .1s ease-out}
.press:active{transform:scale(.97)}

/* nav translúcida */
.nav{position:sticky;top:0;z-index:40;background:rgba(255,255,255,.72);-webkit-backdrop-filter:blur(20px) saturate(180%);backdrop-filter:blur(20px) saturate(180%);border-bottom:1px solid rgba(0,0,0,.06)}
.nav-in{height:64px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.logo{display:flex;align-items:center;color:var(--negro);text-decoration:none!important}
.logo-word{background:var(--negro);color:#fff;font-weight:800;font-size:17px;letter-spacing:.02em;height:30px;padding:0 10px;display:inline-flex;align-items:center}
.nav-links{display:flex;gap:28px;font-size:.9rem}
.nav-links a{color:var(--negro)}
.nav-links a[aria-current="page"]{font-weight:600}
.mobile-menu a[aria-current="page"]{font-weight:600}
.nav-acc{display:flex;align-items:center;gap:8px}
.icon-btn{width:44px;height:44px;border-radius:22px;border:0;background:transparent;display:inline-flex;align-items:center;justify-content:center;cursor:pointer;color:var(--negro)}
.icon-btn:hover{background:rgba(0,0,0,.05)}
.badge{background:var(--accion);color:#fff;border-radius:10px;min-width:20px;padding:0 6px;font-size:12px;line-height:20px;text-align:center;display:inline-block}
.badge.pop{animation:pop .35s var(--ease)}
@keyframes pop{0%{transform:scale(1)}40%{transform:scale(1.35)}100%{transform:scale(1)}}
.menu-btn{display:none}
.mobile-menu{display:none}
@media (max-width:520px){
  .nav-in{gap:8px}
  .nav-acc .buscar{display:none}
}
@media (max-width:1040px){
  .nav-links{display:none}
  .menu-btn{display:inline-flex}
  .mobile-menu.open{display:flex;flex-direction:column;padding:8px 24px 20px;gap:4px;border-top:1px solid var(--linea)}
  .mobile-menu a{color:var(--negro);padding:12px 0;font-size:1.05rem;border-bottom:1px solid var(--linea)}
}

/* hero */
.hero{display:flex;flex-wrap:wrap;align-items:center;gap:56px;padding:88px 0 72px}
.hero-txt{flex:1 1 440px;min-width:0;display:flex;flex-direction:column;gap:24px}
.hero-vis{flex:1 1 420px;min-width:0}
.tile{background:var(--niebla);border-radius:32px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;color:var(--negro)}
.tile small{font-size:13px;color:var(--acero)}
.acciones{display:flex;gap:12px;flex-wrap:wrap}

/* ventajas: icono pequeño, título y una línea; no compite con el titular */
.ventajas{list-style:none;margin:0;padding:0 0 96px;display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px 32px}
.ventajas li{border-top:1px solid var(--linea-2);padding-top:22px;display:flex;flex-direction:column;gap:6px}
.ventajas svg{margin-bottom:8px}
.ventajas b{font-size:1.1rem;font-weight:600;letter-spacing:-.01em}
.ventajas span{color:var(--acero);font-size:.95rem;line-height:1.45}

section.gris{background:var(--niebla);padding:104px 0}
.sec-head{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;flex-wrap:wrap;margin-bottom:44px}
.sec-head>div{display:flex;flex-direction:column;gap:12px;max-width:42rem}

.cats{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:16px}
.cat{background:#fff;border-radius:24px;padding:28px;min-height:196px;display:flex;flex-direction:column;justify-content:space-between;color:var(--negro);text-decoration:none!important;transition:transform .1s ease-out,box-shadow .2s}
.cat:hover{box-shadow:0 8px 28px rgba(0,0,0,.06)}
.cat:active{transform:scale(.98)}
.cat-ico{width:52px;height:52px;border-radius:16px;background:var(--niebla);display:flex;align-items:center;justify-content:center}
.cat b{display:block;font-size:1.25rem;font-weight:600;letter-spacing:-.01em;color:var(--negro)}
/* grupos de 5 tarjetas: una sola fila en escritorio */
@media (min-width:1040px){.cats-5{grid-template-columns:repeat(5,minmax(0,1fr))}.cats-5 .cat{padding:24px}.cats-5 .cat b{font-size:1.1rem}}
.cat span{font-size:.88rem;color:var(--acero)}

/* sectores */
section.oscuro{background:var(--oscuro);color:#F5F5F7;padding:104px 0}
section.oscuro .h2{color:#fff}
section.oscuro .lead{color:var(--gris-oscuro)}
.seg{display:inline-flex;gap:4px;padding:4px;border-radius:24px;background:#2C2C2E;flex-wrap:wrap;margin:36px 0 32px}
.seg button{min-height:44px;padding:0 22px;border-radius:22px;border:0;background:transparent;color:#F5F5F7;font-size:.95rem;font-weight:500;cursor:pointer;transition:background-color .2s,color .2s,transform .1s}
.seg button:active{transform:scale(.97)}
.seg button[aria-selected="true"]{background:#F5F5F7;color:var(--negro);font-weight:600}
.kit{display:flex;flex-wrap:wrap;gap:24px}
.kit-card{flex:1 1 360px;min-width:0;background:var(--oscuro-2);border-radius:var(--r-lg);padding:40px;display:flex;flex-direction:column;gap:16px;justify-content:space-between}
.kit-card p{margin:0}
.kit-list{flex:1 1 420px;min-width:0;list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.kit-list li{background:var(--oscuro-2);border-radius:var(--r-md);padding:18px 20px;display:flex;align-items:center;gap:12px}
.fade-in{animation:fade .35s var(--ease)}
@keyframes fade{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}

.pasos{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:16px}
.pasos li{background:var(--niebla);border-radius:var(--r-lg);padding:36px;display:flex;flex-direction:column;gap:10px}
.pasos b{font-size:.95rem;color:var(--rojo-texto)}

.marcas{border-top:1px solid var(--linea);border-bottom:1px solid var(--linea)}
.marcas-in{padding:52px 24px;display:flex;justify-content:space-between;align-items:center;gap:32px;flex-wrap:wrap}
.marcas-list{display:flex;gap:52px;flex-wrap:wrap;font-size:1.35rem;font-weight:800;letter-spacing:.02em;color:#86868B}

.cta{background:var(--accion);border-radius:36px;padding:72px 40px;display:flex;flex-direction:column;align-items:center;gap:18px;text-align:center;color:#fff}
.cta .h2{color:#fff}
.btn-blanco-suave{background:rgba(255,255,255,.18);color:#fff;font-weight:600}

/* unidades de negocio (inicio) */
.unidades{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:16px}
.unidad{background:#fff;border-radius:var(--r-lg);padding:32px;display:flex;flex-direction:column;gap:24px;color:var(--negro);text-decoration:none!important;transition:transform .1s ease-out,box-shadow .2s}
.unidad:hover{box-shadow:0 8px 28px rgba(0,0,0,.06)}
.unidad:active{transform:scale(.98)}
.unidad{overflow:hidden}
/* foto a sangre en la parte superior de la tarjeta */
.unidad-foto,.sect-foto{position:relative;overflow:hidden;background:var(--linea)}
.unidad-foto{margin:-32px -32px 0;aspect-ratio:16/10}
.sect-card{overflow:hidden}
.sect-foto{margin:-40px -40px 0;aspect-ratio:16/8;background:#2C2C2E}
.unidad-foto .foto,.sect-foto .foto{transition:transform .6s var(--ease)}
.unidad:hover .unidad-foto .foto{transform:scale(1.03)}
.unidad-top{display:flex;justify-content:space-between;align-items:flex-start}
.unidad-num{font-size:.95rem;font-weight:600;color:var(--rojo-texto);margin-bottom:-12px}
.unidad-ir{margin-top:auto;font-weight:600;color:var(--enlace)}
.checks{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}
.checks li{display:flex;gap:10px;align-items:flex-start;font-size:.95rem}
.checks svg{flex:0 0 auto;margin-top:1px}
/* sectores (inicio) */
.sect2{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:16px}
.sect-card{background:var(--oscuro-2);border-radius:var(--r-lg);padding:40px;display:flex;flex-direction:column;gap:32px}
.sect-card p{margin:0}
.sect-n{font-weight:600;color:var(--rojo-claro)}
.sect-ti{font-size:1.75rem;line-height:1.2;letter-spacing:-.02em;font-weight:600;color:#fff}
.sect-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column}
.sect-list li{display:flex;flex-direction:column;gap:2px;padding:14px 0;border-top:1px solid #333336;color:#F5F5F7}
.sect-list li span{font-size:.8rem;font-weight:600;letter-spacing:.04em;text-transform:uppercase;color:var(--gris-oscuro)}
/* marcas: mosaico de logos sobre gris */
.marcas-sec{background:var(--niebla);padding:104px 0}
.marcas-tit{margin:0 0 16px;font-size:.95rem;font-weight:600;color:var(--acero)}
.marcas-grid+.marcas-tit{margin-top:40px}
.marcas-grid{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:12px}
.marca{background:#fff;border-radius:20px;aspect-ratio:3/2;display:flex;align-items:center;justify-content:center;padding:24px 28px;transition:transform .25s var(--ease),box-shadow .25s}
.marca:hover{transform:translateY(-2px);box-shadow:0 8px 28px rgba(0,0,0,.07)}
.marca img{max-width:100%;max-height:100%;object-fit:contain;mix-blend-mode:multiply}
.marca span{font-weight:800;font-size:1.35rem;letter-spacing:.02em}
/* servicios: tarjeta informativa, no enlace */
.serv{cursor:default}
.serv:hover{box-shadow:none}
.serv:active{transform:none}
.pildoras{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:10px}
.pildoras li{background:var(--niebla);border-radius:22px;padding:12px 20px;font-weight:500}
.pasos-oscuro li{background:var(--oscuro-2);color:var(--gris-oscuro)}
.pasos-oscuro .h3{color:#fff}
.pasos-oscuro b{color:var(--rojo-claro)}
.cruce{display:flex;justify-content:space-between;align-items:center;gap:32px;flex-wrap:wrap}
.dato-link{color:var(--negro);text-decoration:none!important;gap:12px}
.dato-link .cat-ico{margin-bottom:8px}
.dato-link .unidad-ir{margin-top:8px}

/* catálogo */
/* selector de línea sobre fondo claro */
.seg-claro{background:var(--niebla);margin:0;align-self:flex-start}
.seg-claro a{display:inline-flex;align-items:center;min-height:44px;padding:0 22px;border-radius:22px;color:var(--negro);font-size:.95rem;font-weight:500;text-decoration:none!important;transition:background-color .2s}
.seg-claro a[aria-current="page"]{background:#fff;font-weight:600;box-shadow:0 1px 4px rgba(0,0,0,.08)}
.cat-top{padding:48px 0 24px;display:flex;flex-direction:column;gap:24px}
.buscador{position:relative;max-width:560px}
.buscador input{width:100%;min-height:52px;border-radius:26px;border:1px solid var(--linea-2);padding:0 20px 0 48px;font-size:1rem;background:#fff}
.buscador svg{position:absolute;left:18px;top:16px;color:var(--acero)}
.chips{display:flex;gap:8px;flex-wrap:wrap}
.chip{min-height:40px;padding:0 16px;border-radius:20px;border:1px solid var(--linea-2);background:#fff;cursor:pointer;font-size:.9rem;transition:transform .1s,background-color .15s}
.chip:active{transform:scale(.96)}
.chip[aria-pressed="true"]{background:var(--negro);border-color:var(--negro);color:#fff}
.grid-prod{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:16px;padding-bottom:96px}
.prod{background:#fff;border:1px solid var(--linea);border-radius:24px;padding:16px;display:flex;flex-direction:column;gap:12px}
.prod-img{background:var(--niebla);border-radius:16px;aspect-ratio:4/3;display:flex;align-items:center;justify-content:center}
.prod a.nombre{color:var(--negro);font-weight:600;line-height:1.3}
.prod .meta{font-size:.82rem;color:var(--acero)}
.prod .fila{display:flex;gap:8px;margin-top:auto}
.vacio{padding:48px;text-align:center;background:var(--niebla);border-radius:var(--r-lg)}

/* ficha */
.ficha{display:flex;flex-wrap:wrap;gap:56px;padding:24px 0 96px}
.ficha-img{flex:1 1 480px;min-width:0}
.ficha-info{flex:1 1 400px;min-width:0;display:flex;flex-direction:column;gap:24px}
.migas{padding-top:24px;font-size:.82rem;color:var(--acero);display:flex;gap:8px;flex-wrap:wrap}
.tag{font-size:.8rem;font-weight:600;border-radius:12px;padding:4px 12px;display:inline-block}
.tag-norma{background:#FDECEC;color:#8E1A1F}
.tag-stock{background:#E8F5EC;color:#0F5F33}
/* variantes: radios nativos con apariencia de chip */
.opciones{border:0;margin:0;padding:0;min-width:0}
.opciones legend{font-weight:600;padding:0;margin-bottom:12px}
.opciones legend span{font-weight:400;color:var(--acero)}
.opts{display:flex;gap:8px;flex-wrap:wrap}
.opt{position:relative}
.opt input{position:absolute;clip-path:inset(50%);width:1px;height:1px;margin:-1px;padding:0;border:0;overflow:hidden;white-space:nowrap}
.opt span{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-width:52px;min-height:48px;padding:0 14px;border-radius:var(--r-sm);border:1px solid var(--linea-2);background:#fff;cursor:pointer;transition:transform .1s}
.opt span:active{transform:scale(.95)}
.opt input:checked+span{border:2px solid var(--negro);padding:0 13px;font-weight:700}
.opt input:focus-visible+span{outline:3px solid var(--enlace);outline-offset:2px}
.swatch{width:20px;height:20px;border-radius:50%;border:1px solid rgba(0,0,0,.2);flex:0 0 auto}
.swatches{display:flex;gap:4px;margin-top:6px}
.swatches i{width:12px;height:12px;border-radius:50%;border:1px solid rgba(0,0,0,.2)}
.err-opc{margin:0;font-size:.85rem;color:var(--rojo-texto);min-height:1.2em}
.ficha-tit{margin:0;font-size:clamp(1.9rem,1.4rem + 2vw,2.4rem);line-height:1.08;letter-spacing:-.03em;font-weight:700}
/* fotos de producto (si existen) */
.prod-img,.tile,.cot-item .mini{position:relative;overflow:hidden}
.foto{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;border-radius:inherit}
/* foto de producto sobre fondo blanco: se ve completa y el blanco se funde con el gris de la tarjeta */
.foto-prod{object-fit:contain;padding:6%;mix-blend-mode:multiply}
.campo{display:flex;flex-direction:column;gap:8px}
.campo label{font-size:.95rem;font-weight:600}
.campo input,.campo select,.campo textarea{min-height:52px;border-radius:var(--r-sm);border:1px solid var(--linea-2);padding:12px 16px;font-size:1rem;background:#fff;width:100%}
.campo textarea{min-height:100px;resize:vertical}
.campo .err{font-size:.85rem;color:var(--rojo-texto);min-height:1.2em}
.campo input[aria-invalid="true"]{border-color:var(--accion)}
.specs{background:var(--niebla);border-radius:24px;padding:4px 24px}
.specs div{display:flex;justify-content:space-between;gap:16px;padding:16px 0;border-bottom:1px solid var(--linea-2);font-size:.95rem}
.specs div:last-child{border-bottom:0}

/* cotización */
.cot{display:flex;flex-wrap:wrap;gap:40px;padding:24px 0 96px;align-items:flex-start}
.cot-lista{flex:1 1 520px;min-width:0;display:flex;flex-direction:column;gap:12px}
.cot-item{display:flex;align-items:center;gap:16px;border:1px solid var(--linea);border-radius:var(--r-md);padding:14px}
.cot-item .mini{width:64px;height:64px;border-radius:12px;background:var(--niebla);display:flex;align-items:center;justify-content:center;flex:0 0 auto}
.cot-item .txt{flex:1 1 auto;min-width:0}
.qty{display:inline-flex;align-items:center;border:1px solid var(--linea-2);border-radius:22px}
.qty button{width:44px;height:44px;border:0;background:transparent;cursor:pointer;font-size:1.2rem}
.qty input{width:56px;border:0;text-align:center;font-weight:600;background:transparent;-moz-appearance:textfield}
.qty input::-webkit-outer-spin-button,.qty input::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}
.form-card{background:var(--niebla);border-radius:var(--r-lg);padding:32px;display:flex;flex-direction:column;gap:12px;min-width:0}
.cot-form{flex:1 1 380px;position:sticky;top:88px}
.form-card .dos{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
@media (max-width:520px){.form-card .dos{grid-template-columns:1fr}.kit-list{grid-template-columns:1fr}}
.aviso{font-size:.82rem;color:var(--acero)}

/* nosotros / contacto */
.split{display:flex;flex-wrap:wrap;gap:56px;align-items:center;padding:96px 0}
.split>*{flex:1 1 420px;min-width:0}
.datos{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px;padding-bottom:96px}
.dato{background:var(--niebla);border-radius:var(--r-lg);padding:32px;display:flex;flex-direction:column;gap:8px}

/* footer */
footer{background:var(--niebla);font-size:.88rem;color:var(--acero)}
.foot{padding:56px 24px 32px;display:flex;flex-direction:column;gap:40px}
.foot-cols{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:32px}
.foot-cols>div{display:flex;flex-direction:column;gap:10px}
.foot-cols b{color:var(--negro);font-weight:600}
.foot-cols a{color:var(--acero)}
.foot-bot{border-top:1px solid var(--linea-2);padding-top:20px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}

/* whatsapp + toast */
.wa{position:fixed;right:20px;bottom:20px;z-index:50;display:inline-flex;align-items:center;gap:10px;height:56px;padding:0 22px 0 18px;border-radius:28px;background:var(--wa);color:#fff!important;font-weight:600;font-size:.95rem;text-decoration:none!important;box-shadow:0 10px 30px rgba(0,0,0,.18);transition:transform .1s}
.wa:active{transform:scale(.97)}
@media (max-width:520px){.wa span{display:none}.wa{padding:0;width:56px;justify-content:center}}
.toast{position:fixed;left:50%;bottom:28px;z-index:60;transform:translate(-50%,24px) scale(.96);opacity:0;pointer-events:none;background:rgba(15,16,19,.86);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);color:#fff;border-radius:24px;padding:12px 12px 12px 20px;display:flex;align-items:center;gap:14px;font-size:.92rem;transition:transform .45s var(--ease),opacity .3s}
.toast.show{transform:translate(-50%,0) scale(1);opacity:1;pointer-events:auto}
.toast a{color:#fff;font-weight:600;background:rgba(255,255,255,.16);border-radius:16px;padding:6px 14px}

.demo-bar{background:var(--negro);color:#fff;font-size:.8rem;text-align:center;padding:8px 16px}

.tile-hero{height:460px}.tile-ficha{height:520px}.tile-nos{height:420px}
.sec-pad{padding:104px 24px}
.btn-cot{white-space:nowrap}
.btn-cot svg{display:none}

/* ---------- móvil ---------- */
@media (max-width:600px){
  .wrap{padding:0 16px}
  .sec-pad{padding:64px 16px}
  .nav-in{height:60px}
  .hero{padding:40px 0 48px;gap:32px}
  .tile-hero,.tile-ficha,.tile-nos{height:auto;aspect-ratio:4/3;border-radius:24px}
  .tile-hero svg{width:60%;height:auto}
  .ventajas{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px 16px;padding-bottom:64px}
  .ventajas b{font-size:1rem}
  .ventajas span{font-size:.88rem}
  section.gris,section.oscuro{padding:64px 0}
  .sec-head{margin-bottom:28px}
  .cats{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
  .cat{padding:18px;min-height:150px;border-radius:20px}
  .cat b{font-size:1.05rem}
  /* selector de sector: 3 columnas iguales, siempre en una fila */
  .seg{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));width:100%;flex-wrap:nowrap;margin:28px 0 24px}
  .seg button{padding:0 8px;font-size:.9rem}
  .kit-card{padding:28px}
  .pasos li{padding:28px}
  .marcas-in{padding:40px 16px;gap:20px}
  .marcas-list{gap:24px;font-size:1.1rem}
  .cta{padding:48px 20px;border-radius:28px}
  .unidad{padding:24px;gap:20px}
  .sect-card{padding:28px;gap:24px}
  .sect-ti{font-size:1.4rem}
  .form-card{padding:20px}
  .unidad-foto{margin:-24px -24px 0}
  .marcas-sec{padding:64px 0}
  .marcas-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}
  .marca{padding:12px 14px;border-radius:14px}
  .marca span{font-size:.95rem}
  .sect-foto{margin:-28px -28px 0}
  /* selector de línea: dos columnas iguales */
  .seg-claro{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));width:100%;margin:0}
  .seg-claro a{justify-content:center;text-align:center;padding:6px 8px;font-size:.88rem;line-height:1.2}
  /* catálogo: 2 columnas y filtros deslizables */
  .cat-top{padding:32px 0 20px;gap:20px}
  .chips{flex-wrap:nowrap;overflow-x:auto;margin:0 -16px;padding:0 16px 4px;scrollbar-width:none}
  .chips::-webkit-scrollbar{display:none}
  /* borde que se desvanece: indica que hay más filtros hacia la derecha */
  .chips{-webkit-mask-image:linear-gradient(to right,#000 85%,transparent);mask-image:linear-gradient(to right,#000 85%,transparent)}
  .chip{flex:0 0 auto}
  .grid-prod{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;padding-bottom:64px}
  .prod{padding:10px;gap:10px;border-radius:20px}
  .prod-img{border-radius:12px}
  .prod-img svg{width:44px;height:44px}
  .prod a.nombre{font-size:.92rem}
  .prod .ver{display:none}
  .prod .btn-sm{padding:0 10px;font-size:.88rem}
  /* ficha */
  .ficha{gap:28px;padding-bottom:64px}
  .tile-ficha svg{width:40%;height:auto}
  .specs{padding:4px 18px}
  /* cotización */
  .cot{gap:24px;padding-bottom:64px}
  .cot-item{display:grid;grid-template-columns:56px minmax(0,1fr) 44px;gap:8px 12px;padding:12px}
  .cot-item .mini{width:56px;height:56px;grid-row:span 2}
  .cot-item .qty{grid-column:2;grid-row:2;justify-self:start}
  .cot-item [data-quitar]{grid-column:3;grid-row:1}
  .cot-form{position:static}
  .split{padding:48px 0;gap:32px}
  .datos{padding-bottom:64px}
  .foot{padding:40px 16px 96px}
}
@media (max-width:360px){.seg button{padding:0 4px;font-size:.82rem}}
@media (max-width:400px){
  .btn-cot{padding:0 14px}
  .btn-cot .cot-txt{position:absolute;clip-path:inset(50%);width:1px;height:1px;overflow:hidden;white-space:nowrap}
  .btn-cot svg{display:block}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:opacity .2s!important}
  html{scroll-behavior:auto}
  .btn:active,.press:active,.cat:active,.unidad:active,.chip:active,.opt span:active,.unidad:hover .unidad-foto .foto,.marca:hover{transform:none}
}
@media (prefers-contrast:more){
  .opt span,.chip,.prod,.buscador input,.campo input,.campo select,.campo textarea{border-color:var(--negro)}
  .swatch,.swatches i{border-color:var(--negro)}
}
@media (prefers-reduced-transparency:reduce){
  .nav{background:#fff;backdrop-filter:none;-webkit-backdrop-filter:none}
  .toast{background:var(--negro);backdrop-filter:none}
}