/* VAMEN web — prototipo 30/10/2026. Colores de identidad-marca.md: dorado de los Reels, fondo oscuro, barra roja del logo. */
:root{
  --bg:#0b0b0c; --bg2:#141416; --line:#26262a; --txt:#f2f2f2; --muted:#a6a6ad;
  --gold:#E2B016; --red:#C81C22; --wa:#1fa855; --r:14px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--txt);font:400 17px/1.6 Inter,system-ui,Segoe UI,sans-serif;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:inherit}
.wrap{max-width:1180px;margin:0 auto;padding:0 20px}
h1{font-size:clamp(34px,5.2vw,60px);line-height:1.08;font-weight:900;letter-spacing:-.02em}
h2{font-size:clamp(26px,3.2vw,38px);line-height:1.15;font-weight:800;letter-spacing:-.01em;margin-bottom:18px}
h3{font-size:19px;font-weight:700;margin-bottom:6px}
p+p{margin-top:12px}
.gold{color:var(--gold)}
.kicker{display:flex;align-items:center;gap:12px;color:var(--gold);font-weight:600;font-size:13px;letter-spacing:.16em;text-transform:uppercase;margin-bottom:16px}
.kbar{width:34px;height:3px;background:var(--gold);display:inline-block}

/* header */
.top{position:sticky;top:0;z-index:10;background:rgba(11,11,12,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.top-in{display:flex;align-items:center;gap:28px;height:72px}
.logo{display:flex;flex-direction:column;gap:5px}
.logo img{width:126px}
.logo-bar{display:block;width:40px;height:4px;background:var(--red)}
.menu{display:flex;gap:26px;margin-left:auto}
.menu a{text-decoration:none;color:var(--muted);font-weight:500;font-size:15px}
.menu a:hover{color:var(--txt)}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:15px 24px;border-radius:999px;font-weight:700;font-size:16px;text-decoration:none;transition:transform .15s,filter .15s}
.btn:hover{transform:translateY(-1px);filter:brightness(1.08)}
.btn-wa{background:var(--wa);color:#fff}
.btn-ghost{border:1.5px solid #3a3a40;color:var(--txt)}
.btn-sm{padding:10px 18px;font-size:14px}

/* hero */
.hero{background:radial-gradient(1200px 500px at 85% 40%,#2a2410 0%,transparent 60%),var(--bg);padding:72px 0 64px}
.hero-in{display:grid;grid-template-columns:1fr 1.15fr;gap:40px;align-items:center}
.lead{color:#d0d0d5;font-size:19px;margin:22px 0 30px;max-width:520px}
.cta{display:flex;flex-wrap:wrap;gap:12px}
.hero-img figcaption,.credit{display:flex;align-items:center;gap:10px;justify-content:flex-end;color:var(--muted);font-size:13px;margin-top:8px}

/* steps */
.band{background:var(--gold);color:#111;padding:56px 0}
.band h2{color:#111}
.steps{list-style:none;display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.steps p{color:#2b2b2b}
.n{display:inline-grid;place-items:center;width:40px;height:40px;border-radius:50%;background:#111;color:var(--gold);font-weight:800;margin-bottom:12px}

/* sections */
.sec{padding:84px 0}
.sec-alt{background:var(--bg2)}
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.photo img{border-radius:var(--r);width:100%;max-height:520px;object-fit:cover}
.photo figcaption{color:var(--muted);font-size:13px;margin-top:8px}
.split p{color:#cfcfd4}
.split .btn{margin-top:26px}
.tags{list-style:none;display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}
.tags li{border:1px solid #3a3a40;border-radius:999px;padding:6px 14px;font-size:14px;color:#ddd}
.note{color:var(--gold)!important;font-weight:600}
.ar{border-left:3px solid var(--gold);padding-left:14px;margin-top:20px!important}

/* footer */
.foot{border-top:1px solid var(--line);padding:56px 0 24px;color:#cfcfd4;font-size:15px}
.foot-in{display:grid;grid-template-columns:1.2fr 1.4fr 1fr;gap:32px}
.foot h4{color:var(--txt);font-size:14px;letter-spacing:.12em;text-transform:uppercase;margin-bottom:10px}
.foot .logo-bar{margin:6px 0 10px}
.muted{color:var(--muted)}
.foot-links a{display:block;text-decoration:none;color:#cfcfd4;margin-bottom:4px}
.foot-links a:hover{color:var(--txt)}
.foot-in{grid-template-columns:1.1fr 1fr 1.4fr 1fr}
.legal{color:#6f6f76;font-size:13px;margin-top:40px}

/* menú desplegable y hamburguesa */
.menu{align-items:center}
.drop{position:relative}
.drop-list{display:none;position:absolute;top:100%;left:-16px;background:#16161a;border:1px solid var(--line);border-radius:12px;padding:8px;min-width:220px;box-shadow:0 12px 30px rgba(0,0,0,.45)}
.drop:hover .drop-list,.drop:focus-within .drop-list{display:block}
.drop-list a{display:block;padding:9px 12px;border-radius:8px}
.drop-list a:hover{background:#222227}
.drop>a::after{content:" ▾";font-size:11px}
.burger{display:none;background:none;border:0;width:44px;height:44px;flex-direction:column;justify-content:center;gap:6px;cursor:pointer}
.burger span{display:block;height:2px;background:#fff;width:24px;margin:0 auto}

/* categorías de la portada */
.cats{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:28px}
.cat{display:flex;flex-direction:column;border-radius:var(--r);overflow:hidden;text-decoration:none;background:#17171a;color:#111;transition:transform .15s}
.cat:hover{transform:translateY(-3px)}
.cat-img{aspect-ratio:4/3;display:grid;place-items:center;background:#fff;padding:14px}
.cat-img img{width:100%;height:100%;object-fit:contain}
.cat-name{background:#17171a;color:var(--txt);padding:14px 18px;font-weight:700;font-size:18px;display:flex;justify-content:space-between;align-items:center}
.cat-name em{font-style:normal;font-weight:500;font-size:13px;color:var(--gold)}
.row-end{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-top:18px;flex-wrap:wrap}
.row-end .credit{margin:0}

/* páginas internas */
.page{padding-top:40px}
.page-h{font-size:clamp(30px,4vw,46px);line-height:1.1;font-weight:900;margin-bottom:18px}
.crumbs{color:var(--muted);font-size:14px;margin-bottom:14px}
.crumbs a{text-decoration:none;color:var(--muted)}
.crumbs a:hover{color:var(--txt)}
.chips{display:flex;gap:8px;flex-wrap:wrap;margin:6px 0 14px}
.chips a{border:1px solid #3a3a40;border-radius:999px;padding:8px 16px;font-size:14px;text-decoration:none;color:#ddd}
.chips a.on{background:var(--gold);border-color:var(--gold);color:#111;font-weight:700}
.hint{color:var(--muted);font-size:14px;margin:10px 0 22px}
.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.card{display:flex;flex-direction:column;border-radius:var(--r);overflow:hidden;text-decoration:none;background:#17171a;border:1px solid var(--line);transition:transform .15s,border-color .15s;cursor:pointer}
.card:hover{transform:translateY(-3px);border-color:#4a4a50}
.card-img{aspect-ratio:1;background:#fff;display:grid;place-items:center;padding:16px}
.card-img img{width:100%;height:100%;object-fit:contain}
.card-txt{padding:14px 16px 16px;display:flex;flex-direction:column;gap:4px}
.card-cat{font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--gold);font-weight:600}
.card-name{font-weight:700;font-size:17px}
.card-cta{font-size:14px;color:var(--muted);margin-top:4px}
.prod{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;margin-top:10px}
.prod-img{background:#fff;border-radius:var(--r);display:grid;place-items:center;padding:24px;aspect-ratio:1}
.prod-img img{width:100%;height:100%;object-fit:contain}
.lead-s{color:#d0d0d5;font-size:18px;margin-bottom:24px}
.desc{max-width:820px;margin:56px 0 0;color:#cfcfd4}
.desc h2,.desc h3,.desc h4{color:var(--txt);margin:26px 0 10px;font-size:21px}
.desc p{margin-top:12px}
.desc ul,.desc ol,.narrow ul{padding-left:22px;margin-top:10px}
.desc li,.narrow li{margin-top:6px}
.desc strong{color:var(--txt)}
.rel-h{margin-top:64px}
.narrow{max-width:860px}
.narrow p{color:#cfcfd4}
.narrow h2{margin-top:44px}
.page-photo{margin:32px 0}
.contact{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:40px}
.contact p{color:#cfcfd4}

.cat-img,.prod-img,.qv-img{position:relative}
.img-credit{position:absolute;right:10px;bottom:8px;font-size:11px;color:#777}
.img-credit:empty{display:none}
/* la foto se ajusta a la caja, sin estirar la tarjeta */
.cat-img,.card-img,.prod-img{overflow:hidden}
.cat-img img,.card-img img,.prod-img img{position:absolute;inset:16px;width:calc(100% - 32px);height:calc(100% - 32px);object-fit:contain}
.card-img{position:relative}

/* Uruforest */
.feria{margin-top:56px;padding-top:40px;border-top:1px solid var(--line)}
.feria-txt p{color:#cfcfd4;margin-top:12px}
.galeria{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin-top:24px}
.galeria img,.galeria video{width:100%;border-radius:var(--r);display:block;background:#000}
.galeria{align-items:start}
.galeria .gal-foto{grid-column:1/-1}   /* Uruforest (Tomás, 31/10/2026): la foto arriba a lo ancho y los dos videos abajo, uno al lado del otro */
.galeria video{height:auto}
.galeria figure:not(.gal-foto){width:100%;max-width:300px;justify-self:center}   /* en la compu los videos verticales no quedan gigantes */

/* detalle rápido */
.qv{margin:auto;border:0;border-radius:18px;padding:0;max-width:860px;width:calc(100% - 32px);background:#17171a;color:var(--txt)}
.qv::backdrop{background:rgba(0,0,0,.7)}
.qv-in{display:grid;grid-template-columns:1fr 1fr}
.qv-img{background:#fff;display:grid;place-items:center;padding:24px;aspect-ratio:1}
.qv-img img{width:100%;height:100%;max-height:380px;object-fit:contain}
.qv-txt{padding:32px 28px;display:flex;flex-direction:column;gap:12px;justify-content:center}
.qv-cat{color:var(--gold);font-size:12px;letter-spacing:.14em;text-transform:uppercase;font-weight:600}
.qv h3{font-size:28px;font-weight:800;line-height:1.15}
.qv-corto{color:#cfcfd4;font-size:16px}
.qv-mas{color:var(--muted);font-size:15px;text-decoration:none;text-align:center}
.qv-mas:hover{color:var(--txt)}
.qv-x{position:absolute;top:10px;right:14px;background:#000a;color:#fff;border:0;width:38px;height:38px;border-radius:50%;font-size:24px;cursor:pointer;z-index:2}

/* tren de rodaje con flechas */
.tr-sec{padding-top:40px}
.tr-head{text-align:center;margin-bottom:26px}
.tr-head .kicker{justify-content:center}
.tr-head h2{margin-bottom:8px}
.tr-sub{color:var(--muted)}
.tr-diag{position:relative;display:grid;grid-template-columns:220px 1fr 220px;gap:28px;align-items:stretch}
.tr-col{display:flex;flex-direction:column;justify-content:space-around;gap:12px;position:relative;z-index:2}
.tr-fig{position:relative;align-self:center;z-index:1}
.tr-img{width:100%;height:auto}
.tr-cred{position:absolute;right:0;bottom:-18px;font-size:11px;color:#77777e}
.tr-lineas{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;z-index:1;overflow:visible;color:#9a9aa2}
.tr-lineas path{fill:none;stroke:currentColor;stroke-width:1.6;transition:stroke .2s,stroke-width .2s}
.tr-lineas path.on{stroke:var(--gold);stroke-width:2}

/* etiqueta de cada pieza */
.tr-lbl{display:flex;align-items:center;gap:12px;width:100%;text-align:left;background:#151518;border:1px solid var(--line);border-radius:14px;padding:8px 12px 8px 8px;color:var(--txt);font:inherit;cursor:pointer;transition:border-color .2s,background .2s}
.tr-lbl:hover,.tr-lbl.on{border-color:var(--gold);background:#1b1a14}
.tr-num{display:none}
.tr-th{width:46px;height:46px;flex-shrink:0;border-radius:10px;display:grid;place-items:center}
.tr-th img{width:38px;height:38px;object-fit:contain}
.tr-tx{display:flex;flex-direction:column;min-width:0}
.tr-tx strong{font-size:15px;line-height:1.25}
.tr-tx em{font-style:normal;font-size:12.5px;color:var(--gold);font-weight:600}

/* punto sobre la pieza */
.tr-pt{position:absolute;left:var(--x);top:var(--y);width:34px;height:34px;margin:-17px 0 0 -17px;border:0;background:none;padding:0;cursor:pointer;display:grid;place-items:center;z-index:3}
.tr-pt span{width:14px;height:14px;border-radius:50%;background:var(--gold);border:2px solid #111;box-shadow:0 0 0 3px rgba(226,176,22,.35);font-size:0;transition:transform .2s,box-shadow .2s}
.tr-pt:hover span,.tr-pt.on span{transform:scale(1.35);box-shadow:0 0 0 6px rgba(226,176,22,.3)}

.tr-pie{display:flex;justify-content:center;gap:12px;margin-top:40px;flex-wrap:wrap}
.tr-pie button{font-family:inherit;background:none;cursor:pointer}

/* al llegar: las flechas se dibujan de a una y aparecen las etiquetas (solo con JavaScript y sin "reducir movimiento") */
@media (prefers-reduced-motion:no-preference){
  .js .tr-lineas path{stroke-dasharray:1;stroke-dashoffset:1}
  .js .tr-diag.in .tr-lineas path{stroke-dashoffset:0;transition:stroke-dashoffset .7s ease var(--d,0s),stroke .2s,stroke-width .2s}
  .js .tr-lbl,.js .tr-pt{opacity:0;transition:opacity .45s ease var(--d,0s),border-color .2s,background .2s}
  .js .tr-diag.in .tr-lbl,.js .tr-diag.in .tr-pt{opacity:1}
  .js [data-rv]{opacity:0;transform:translateY(14px);transition:opacity .6s ease,transform .6s ease}
  .js [data-rv].in{opacity:1;transform:none}
}

/* celular: sin flechas ni números (Tomás, 31/10/2026: "lo de los números no me gusta"); debajo del tren, una etiqueta chica por pieza con su foto */
@media (max-width:900px){
  .tr-diag{display:flex;flex-wrap:wrap;justify-content:center;gap:8px}
  .tr-fig{order:-1;width:100%;margin-bottom:16px}
  .tr-col{display:contents}
  .tr-lineas{display:none}
  .tr-lbl{width:auto;border-radius:999px;padding:4px 14px 4px 4px;gap:8px}
  .tr-num{display:none}
  .tr-th{width:30px;height:30px;border-radius:50%}
  .tr-th img{width:24px;height:24px}
  .tr-tx strong{font-size:13.5px;font-weight:600}
  .tr-tx em{display:none}
  .tr-pt{width:30px;height:30px;margin:-15px 0 0 -15px}
  .tr-pt span{width:12px;height:12px}
  .tr-pie{margin-top:22px}
  .tr-pie .btn{width:100%}
}

/* portada con foto grande, al estilo de shop.berco.com (Tomás, 31/10/2026) */
.con-foto .top{background:transparent;border-bottom-color:transparent;backdrop-filter:none;transition:background .3s,border-color .3s}
.con-foto .top .menu a{color:#e8e8ea}
.con-foto.bajo .top{background:rgba(11,11,12,.92);border-bottom-color:var(--line);backdrop-filter:blur(8px)}
.foto-hero{position:relative;margin-top:-72px;min-height:max(600px,100vh);min-height:max(600px,100svh);display:flex;align-items:flex-end;overflow:hidden;background:#1a1a1a}
.foto-hero-bg{position:absolute;top:0;bottom:0;left:18%;width:100%;height:100%;object-fit:cover;object-position:50% 6%;
  -webkit-mask-image:linear-gradient(90deg,transparent 0,#000 22%);mask-image:linear-gradient(90deg,transparent 0,#000 22%)}   /* corrida a la derecha y para abajo: las máquinas a la altura del título (Tomás, 31/10/2026); el borde izquierdo se funde con el fondo */
.foto-hero::before{content:"";position:absolute;inset:0;z-index:1;background:
  linear-gradient(90deg,rgba(8,8,9,.86) 0%,rgba(8,8,9,.62) 38%,rgba(8,8,9,.18) 70%,rgba(8,8,9,.05) 100%),
  linear-gradient(0deg,rgba(11,11,12,1) 0%,rgba(11,11,12,.55) 22%,transparent 48%),
  linear-gradient(180deg,rgba(8,8,9,.55) 0%,transparent 20%)}
.foto-hero-in{position:relative;z-index:2;width:100%;padding-top:140px;padding-bottom:clamp(56px,10vh,110px)}
.foto-hero h1{font-weight:300;font-size:clamp(40px,6.2vw,84px);line-height:1.04;letter-spacing:-.025em;color:#fff;max-width:900px}
.foto-hero h1 strong{font-weight:700;color:var(--gold)}
.foto-hero .lead{color:#e2e2e6;max-width:560px}
.btn-line{border:1.5px solid rgba(255,255,255,.7);color:#fff}
.btn-line:hover{background:rgba(255,255,255,.08)}
.foto-hero-cred{position:absolute;right:20px;bottom:14px;z-index:2;font-size:11px;color:rgba(255,255,255,.55)}
@media (max-width:900px){
  .con-foto .top{background:rgba(11,11,12,.55)}
  .foto-hero{min-height:max(520px,72svh)}   /* opción 3 "corta" (Tomás, 31/10/2026): sin el texto de abajo, el tren aparece antes */
  .foto-hero-bg{left:0;top:2%;height:122%;object-position:66% 50%;-webkit-mask-image:none;mask-image:none}   /* máquinas más centradas y un poco más cerca en el celu (Tomás, 31/10/2026) */
  .foto-hero::before{background:linear-gradient(0deg,rgba(11,11,12,1) 0%,rgba(11,11,12,.82) 38%,rgba(8,8,9,.35) 70%,rgba(8,8,9,.5) 100%)}
  .foto-hero-in{padding-bottom:26px}
  .foto-hero h1{font-size:30px;line-height:1.1;margin-bottom:18px;text-wrap:balance}   /* en el celular el título iba muy grande (Tomás, 31/10/2026) */
  .foto-hero .lead{display:none}
  .foto-hero .kicker{display:none}   /* en el celular no va "Representante BERCO en Uruguay" (Tomás, 31/10/2026) */
  .foto-hero .cta{display:grid;grid-template-columns:1fr 1fr;gap:10px}
  .foto-hero .cta .btn{padding:12px 4px;font-size:13.5px;margin:0;white-space:nowrap}
}

/* tipografía (Tomás, 31/10/2026): Titillium Web en títulos, botones y menú; el texto corrido sigue en Inter */
h1,h2,h3,h4,.kicker,.btn,.menu a,.cat-name,.card-name,.tr-tx strong,.page-h,.qv h3{font-family:'Titillium Web',Inter,system-ui,sans-serif}
/* fotos de producto sin fondo blanco: la pieza flota sobre el fondo oscuro (Tomás, 31/10/2026) */
.cat-img,.card-img,.prod-img,.qv-img,.tr-th{background:radial-gradient(70% 60% at 50% 55%,#2a2a30 0%,#19191c 70%,#151517 100%)}
.cat,.card{background:#151517;border:1px solid var(--line)}
.cat-name{background:transparent;border-top:1px solid var(--line)}
.cat:hover,.card:hover{border-color:var(--gold)}
.cat-img img,.card-img img,.prod-img img{filter:drop-shadow(0 10px 18px rgba(0,0,0,.45));transition:transform .25s}
.cat:hover .cat-img img,.card:hover .card-img img{transform:scale(1.04)}
.img-credit{color:#6c6c73}
.prod-img{border:1px solid var(--line)}

/* pieza iluminada: al pasar por una etiqueta o un punto, el tren se apaga y esa pieza brilla (Tomás, 31/10/2026) */
.tr-img{transition:filter .35s}
.tr-fig.foco .tr-img{filter:brightness(.3) saturate(.45)}
.tr-luces{position:absolute;inset:0;pointer-events:none;z-index:2;filter:drop-shadow(0 0 8px rgba(226,176,22,.8)) drop-shadow(0 0 22px rgba(226,176,22,.3))}
.tr-luz{position:absolute;inset:0;opacity:0;transition:opacity .35s;-webkit-mask-size:100% 100%;mask-size:100% 100%;-webkit-mask-repeat:no-repeat;mask-repeat:no-repeat}
.tr-luz img{width:100%;height:100%;display:block;filter:brightness(1.12)}
.tr-luz.on{opacity:1}
/* "Dónde va esta pieza" en los productos de rodaje */
.donde{margin-top:48px}
.donde-fig{position:relative;max-width:760px}
.donde-base{width:100%;filter:brightness(.32) saturate(.45)}
.donde-luz{position:absolute;inset:0;-webkit-mask-size:100% 100%;mask-size:100% 100%;-webkit-mask-repeat:no-repeat;mask-repeat:no-repeat;filter:drop-shadow(0 0 8px rgba(226,176,22,.8))}
.donde-luz img{width:100%;display:block;filter:brightness(1.12)}
.donde-fig figcaption{text-align:right;font-size:11px;color:#77777e;margin-top:4px}
@media (prefers-reduced-motion:no-preference){.donde-luz{animation:donde-pulso 2.6s ease-in-out infinite}}
@keyframes donde-pulso{50%{filter:drop-shadow(0 0 16px rgba(226,176,22,.95))}}
/* luz que recorre la cadena una vez al llegar al tren (Tomás, 31/10/2026): la cadena (máscara exacta) ∩ un foco que se mueve por los eslabones */
@property --lx{syntax:'<percentage>';inherits:false;initial-value:17.9%}
@property --ly{syntax:'<percentage>';inherits:false;initial-value:75.9%}
.tr-recorre{position:absolute;inset:0;pointer-events:none;z-index:2;opacity:0;filter:drop-shadow(0 0 10px rgba(255,214,90,.95)) drop-shadow(0 0 24px rgba(226,176,22,.6))}
.tr-recorre img{width:100%;display:block;filter:brightness(1.6) saturate(1.3);
  -webkit-mask-image:url('/img/mascaras/cadena.png'),radial-gradient(ellipse 8% 17% at var(--lx) var(--ly),#000 0%,rgba(0,0,0,.6) 45%,transparent 100%);
  mask-image:url('/img/mascaras/cadena.png'),radial-gradient(ellipse 8% 17% at var(--lx) var(--ly),#000 0%,rgba(0,0,0,.6) 45%,transparent 100%);
  -webkit-mask-size:100% 100%,100% 100%;mask-size:100% 100%,100% 100%;-webkit-mask-repeat:no-repeat;mask-repeat:no-repeat;
  -webkit-mask-composite:source-in;mask-composite:intersect}
@media (prefers-reduced-motion:no-preference){
  .tr-fig.corre .tr-recorre{animation:tr-aparece 3.2s ease-in-out forwards}
  .tr-fig.corre .tr-recorre img{animation:tr-camino 3.2s linear forwards}
  .tr-fig.corre .tr-img{animation:tr-apaga 3.2s ease-in-out}   /* mientras pasa la luz, el resto del tren baja un poco */
}
@keyframes tr-apaga{0%,100%{filter:none}12%,85%{filter:brightness(.5) saturate(.7)}}
@keyframes tr-aparece{0%{opacity:0}8%{opacity:1}88%{opacity:1}100%{opacity:0}}
@keyframes tr-camino{
  0.0%{--lx:17.9%;--ly:75.9%}
  11.5%{--lx:35.7%;--ly:71.3%}
  25.5%{--lx:57.1%;--ly:61.5%}
  39.4%{--lx:78.6%;--ly:51.9%}
  46.2%{--lx:88.9%;--ly:46.3%}
  49.2%{--lx:91.4%;--ly:37.9%}
  52.4%{--lx:92.1%;--ly:27.3%}
  56.6%{--lx:90.0%;--ly:14.4%}
  61.6%{--lx:82.1%;--ly:11.4%}
  68.5%{--lx:71.4%;--ly:14.4%}
  77.8%{--lx:57.1%;--ly:20.0%}
  87.4%{--lx:42.9%;--ly:29.6%}
  96.7%{--lx:28.6%;--ly:36.4%}
  100.0%{--lx:23.6%;--ly:39.2%}
}
/* el tren "se arma pieza por pieza" (Tomás, 31/10/2026): sobre la silueta a oscuras, cada pieza entra desde su lado y se acomoda; al final se prende entero */
.tr-arma{position:absolute;inset:0;pointer-events:none;z-index:2;display:none;filter:drop-shadow(0 0 10px rgba(255,214,90,.55))}
.tr-pieza{position:absolute;inset:0;opacity:0;-webkit-mask-size:100% 100%;mask-size:100% 100%;-webkit-mask-repeat:no-repeat;mask-repeat:no-repeat}
.tr-pieza img{width:100%;height:100%;display:block}
@media (prefers-reduced-motion:no-preference){
  .js .tr-fig:not(.armado) .tr-img{filter:brightness(.1) saturate(.3);opacity:.7}
  .tr-fig.arma .tr-arma{display:block}
  .tr-fig.arma .tr-pieza{animation:tr-entra-pieza .4s cubic-bezier(.2,.85,.25,1) var(--d) forwards}
  .tr-fig.arma .tr-pieza img{animation:tr-encaja .5s ease-out var(--d) both}
  .tr-fig.armado .tr-arma{animation:tr-se-va .45s ease-out forwards}
  .tr-fig.armado .tr-img{animation:tr-destello .6s ease-out}
}
@keyframes tr-entra-pieza{from{opacity:0;transform:var(--de)}to{opacity:1;transform:none}}
@keyframes tr-encaja{0%,60%{filter:brightness(1.55)}100%{filter:brightness(1.05)}}
@keyframes tr-se-va{to{opacity:0}}
/* cuando termina de armarse (Tomás, 31/10/2026): golpe de luz — el tren late, brilla dorado, un reflejo lo cruza y una onda sale del piso */
@property --bx{syntax:'<percentage>';inherits:false;initial-value:-30%}
.tr-brillo{position:absolute;inset:0;pointer-events:none;z-index:3;display:none;mix-blend-mode:screen}
.tr-brillo img{width:100%;display:block;filter:brightness(2.4) saturate(.6);
  -webkit-mask-image:linear-gradient(105deg,transparent calc(var(--bx) - 14%),#000 var(--bx),transparent calc(var(--bx) + 14%));mask-image:linear-gradient(105deg,transparent calc(var(--bx) - 14%),#000 var(--bx),transparent calc(var(--bx) + 14%))}
.tr-onda{position:absolute;left:20%;width:60%;top:72%;aspect-ratio:5/1;border:2px solid rgba(255,214,90,.9);border-radius:50%;pointer-events:none;z-index:1;opacity:0;box-shadow:0 0 18px rgba(255,214,90,.6),inset 0 0 18px rgba(255,214,90,.35)}
@media (prefers-reduced-motion:no-preference){
  .tr-fig.armado .tr-img{animation:tr-golpe 1.1s cubic-bezier(.2,.8,.3,1)}
  .tr-fig.armado .tr-brillo{display:block}
  .tr-fig.armado .tr-brillo img{animation:tr-reflejo .9s ease-in-out .15s both}
  .tr-fig.armado .tr-onda{animation:tr-onda 1.1s ease-out .05s}
  .tr-fig.armado .tr-onda2{animation-delay:.3s}
  .tr-fig.armado.corre .tr-img{animation:tr-apaga 3.2s ease-in-out}   /* que la pasada de luz por la cadena siga bajando el resto */
}
@keyframes tr-golpe{
  0%{transform:scale(1);filter:brightness(1.7) drop-shadow(0 0 0 rgba(255,214,90,0))}
  22%{transform:scale(1.035);filter:brightness(1.5) drop-shadow(0 0 34px rgba(255,214,90,.95))}
  100%{transform:scale(1);filter:none}}
@keyframes tr-reflejo{from{--bx:-30%}to{--bx:130%}}
@keyframes tr-onda{0%{opacity:.95;transform:scale(.35)}100%{opacity:0;transform:scale(1.5)}}

/* foto de la portada: zoom muy lento al entrar (Tomás, 31/10/2026) */
@media (prefers-reduced-motion:no-preference){
  .foto-hero-bg{transform-origin:70% 40%;animation:hero-zoom 20s cubic-bezier(.2,.6,.3,1) forwards}
}
@keyframes hero-zoom{from{transform:scale(1)}to{transform:scale(1.08)}}

/* ventana "Cadena completa": el tren de rodaje pieza por pieza (Tomás, 31/10/2026) */
.dlg-partes{margin:auto;border:1px solid var(--line);border-radius:18px;padding:36px 32px 28px;max-width:1180px;width:calc(100% - 32px);background:#101012;color:var(--txt)}
.dlg-partes::backdrop{background:rgba(0,0,0,.75)}
.grid.parts{display:grid;grid-template-columns:repeat(5,1fr);gap:16px;margin-top:24px}
.parts figure{background:linear-gradient(180deg,#1b1b1e,#121214);border:1px solid var(--line);border-radius:var(--r);padding:22px 18px 16px;display:flex;flex-direction:column;justify-content:space-between;gap:16px}
.parts img{height:130px;width:100%;object-fit:contain}
.parts figcaption{font-weight:600;font-size:15px;font-family:'Titillium Web',Inter,system-ui,sans-serif}
@media (max-width:900px){
  .dlg-partes{padding:28px 16px 20px;max-height:88vh;overflow:auto}
  .dlg-partes h2{font-size:24px;padding-right:36px}
  .grid.parts{grid-template-columns:repeat(2,1fr);gap:10px}
  .parts img{height:96px}
  .dlg-partes .row-end .btn{width:100%}
}
/* Cómo pedir tu repuesto: barra compacta (Tomás, 31/10/2026: "ocupa mucho espacio") */
.consulta{padding-top:16px}
.cs-cab{max-width:860px;margin-bottom:18px}
.cs-cab h2{margin-bottom:8px}
.cs-sub{color:var(--muted);font-size:15px}
.cs-form{display:grid;grid-template-columns:1fr 1.15fr 1.25fr 1.1fr auto;gap:10px;align-items:end;background:#141416;border:1px solid var(--line);border-radius:16px;padding:14px}
.cs-c{display:block;min-width:0}
.cs-c>span,.cs-c>label>span{display:block;font-size:11.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin:0 0 6px 4px}
.cs-form select,.cs-form input[type=text]{width:100%;height:48px;background:#0e0e10;border:1px solid #34343a;border-radius:10px;color:var(--txt);font:inherit;font-size:15px;padding:0 12px}
.cs-form select{appearance:none;-webkit-appearance:none;padding-right:34px;cursor:pointer;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' fill='none' stroke='%23E2B016' stroke-width='2'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 12px center}
.cs-form select:focus,.cs-form input[type=text]:focus{outline:none;border-color:var(--gold)}
.cs-multi{position:relative}
.cs-multi summary{list-style:none;height:48px;display:flex;align-items:center;background:#0e0e10 url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' fill='none' stroke='%23E2B016' stroke-width='2'/%3E%3C/svg%3E") no-repeat right 12px center;border:1px solid #34343a;border-radius:10px;padding:0 34px 0 12px;font-size:15px;cursor:pointer;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.cs-multi summary::-webkit-details-marker{display:none}
.cs-multi[open] summary{border-color:var(--gold)}
.cs-multi-t{overflow:hidden;text-overflow:ellipsis}
.cs-multi-l{position:absolute;left:0;right:0;top:calc(100% + 6px);z-index:5;background:#17171a;border:1px solid #3a3a40;border-radius:12px;padding:6px;box-shadow:0 14px 30px rgba(0,0,0,.5);min-width:220px}
.cs-multi-l label{display:flex;align-items:center;gap:10px;padding:9px 10px;border-radius:8px;font-size:15px;cursor:pointer}
.cs-multi-l label:hover{background:#222227}
.cs-multi-l input{width:18px;height:18px;accent-color:var(--gold)}
.cs-ser-in{position:relative}
.cs-ser-in input[type=text]{padding-right:52px}
.cs-cam{position:absolute;right:5px;top:5px;width:38px;height:38px;border-radius:8px;display:grid;place-items:center;color:#111;background:var(--gold);cursor:pointer;overflow:hidden}
.cs-cam input{position:absolute;opacity:0;width:1px;height:1px}
.cs-cam img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;display:none}
.cs-cam.con-foto img{display:block}
.cs-cam:focus-within{outline:2px solid #fff;outline-offset:2px}
.cs-wa{height:48px;padding:0 20px;white-space:nowrap}
.cs-prev{color:var(--muted);font-size:14px;margin:10px 4px 0!important}
.cs-prev .cs-msg{color:#cfcfd4}
.cs-foto-ok{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:10px;font-size:14px;color:#cfcfd4}
.cs-foto-ok[hidden],.cs-ayuda[hidden]{display:none}
.cs-foto-ok button{background:none;border:1px solid #3a3a40;color:#ddd;border-radius:999px;padding:6px 14px;font:inherit;font-size:13.5px;cursor:pointer}
.cs-foto-ok .cs-mandar-foto{border-color:var(--wa);color:#9fe0b6}
.cs-ayuda{color:var(--gold)!important;font-size:14px;margin:6px 4px 0!important}
@media (max-width:1000px){
  .cs-form{grid-template-columns:1fr 1fr;grid-template-areas:"maq nec" "mod ser" "wa wa"}
  .cs-maq{grid-area:maq}.cs-nec{grid-area:nec}.cs-mod{grid-area:mod}.cs-ser{grid-area:ser}.cs-wa{grid-area:wa;width:100%}
}
@media (max-width:520px){
  .cs-form{grid-template-columns:1fr 1fr;grid-template-areas:"maq nec" "mod mod" "ser ser" "wa wa";padding:12px;gap:8px}
  .cs-multi-l{left:auto;right:0}   /* "Necesito" está a la derecha: la lista se abre hacia adentro de la pantalla */
}
/* Anotate a las ofertas (Tomás, 31/10/2026) */
.registro{padding-top:20px}
.rg-caja{display:grid;grid-template-columns:.9fr 1.1fr;gap:36px;align-items:center;background:linear-gradient(135deg,#1c1808,#121214 60%);border:1px solid #3a3216;border-radius:20px;padding:34px 36px}
.rg-txt h2{margin-bottom:10px}
.rg-txt p:not(.kicker){color:#cfcfd4;font-size:16px}
.rg-campos{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.rg-campos label:last-child{grid-column:1 / -1}   /* nombre, empresa y correo (sin máquina: Tomás, 31/10/2026) */
.rg-campos span{display:block;font-size:11.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin:0 0 6px 4px}
.rg-campos input,.rg-campos select{width:100%;height:46px;background:#0e0e10;border:1px solid #34343a;border-radius:10px;color:var(--txt);font:inherit;font-size:15px;padding:0 12px}
.rg-campos select{appearance:none;-webkit-appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' fill='none' stroke='%23E2B016' stroke-width='2'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 12px center;padding-right:34px}
.rg-campos input:focus,.rg-campos select:focus{outline:none;border-color:var(--gold)}
.rg-ok{display:flex;gap:10px;align-items:flex-start;margin:14px 2px;font-size:13.5px;color:#cfcfd4;cursor:pointer}
.rg-ok input{width:18px;height:18px;margin-top:2px;accent-color:var(--gold);flex-shrink:0}
.rg-ok a{color:var(--muted)}
.rg-btn[aria-disabled="true"]{opacity:.45;pointer-events:none}
.rg-ayuda{color:var(--muted);font-size:13px;margin-top:8px!important}
@media (max-width:900px){
  .rg-caja{grid-template-columns:1fr;gap:18px;padding:24px 18px}
  .rg-btn{width:100%}
}
@media (max-width:520px){.rg-campos{grid-template-columns:1fr}}
/* medidor de desgaste (Tomás, 31/10/2026) */
.medidor{margin-top:48px;background:#111113;border:1px solid var(--line);border-radius:20px;padding:30px 32px 24px;--v:35}
.md-cab{display:flex;justify-content:space-between;align-items:flex-end;gap:20px;flex-wrap:wrap}
.md-cab .kicker{margin-bottom:6px}
.md-ayuda{color:var(--muted);font-size:15px}
.md-num{text-align:right}
.md-pct{display:block;font:700 46px/1 'Titillium Web',Inter,sans-serif;color:var(--md-c,#3fbf6a)}
.md-estado{font-weight:600;color:var(--md-c,#3fbf6a)}
.md-barra{position:relative;height:16px;border-radius:999px;margin:26px 0 30px;background:linear-gradient(90deg,#2f9e55 0%,#2f9e55 38.46%,#8bbf3a 50%,#e2b016 61.54%,#e2b016 69.23%,#e8731c 76.92%,#d23a2a 92.31%,#9e1414 100%)}
.md-marca{position:absolute;top:50%;left:calc(var(--v) / 130 * 100%);width:26px;height:26px;margin:-13px 0 0 -13px;border-radius:50%;background:#fff;border:4px solid #111;box-shadow:0 0 0 2px #fff,0 4px 12px rgba(0,0,0,.5);transition:left .08s}
.md-hito{position:absolute;top:22px;left:var(--p);transform:translateX(-50%);font-size:12px;color:var(--muted);white-space:nowrap}
.md-hito::before{content:"";position:absolute;left:50%;top:-10px;width:1px;height:8px;background:#555}
.md-lim{color:#e8a0a0}
.md-rango{position:absolute;left:0;right:0;top:-14px;width:100%;height:44px;margin:0;opacity:0;cursor:grab;z-index:2}   /* el control invisible va arriba de la barra de colores: se arrastra la barra */
.md-rango:focus-visible~.md-marca,.md-barra:focus-within .md-marca{box-shadow:0 0 0 2px #fff,0 0 0 6px rgba(226,176,22,.6)}
.md-txt{font:600 19px/1.4 'Titillium Web',Inter,sans-serif;color:var(--txt)!important;min-height:2.8em;margin-top:4px!important}
.md-nota{color:var(--muted)!important;font-size:13px;margin-top:4px!important}
.md-como{margin-top:14px;border-top:1px solid var(--line);padding-top:12px}
.md-como summary{cursor:pointer;color:var(--gold);font-weight:600}
.md-como p{color:#cfcfd4!important;font-size:15px;margin-top:8px!important}
@media (max-width:900px){
  .cs-caja{grid-template-columns:1fr;gap:18px;padding:24px 18px}
  .cs-campos{grid-template-columns:1fr}
  .cs-fin .btn{width:100%}
  .medidor{padding:22px 18px 18px;margin-top:32px}
  .md-pct{font-size:38px}
  .md-hito{font-size:10.5px}
  .md-chico{font-size:0}   /* en el celular no entran todos los números: quedan 50, 90 y 120 % */
  .md-txt{font-size:17px}
}

/* páginas legales */
.legal-fecha{color:var(--muted)!important;font-size:14px}
mark.pend{background:#5a1a1a;color:#ffd7d7;border:1px dashed #ff8a8a;border-radius:6px;padding:1px 6px}   /* pendiente: no publicar así */
.legal a{color:#9a9aa2}
.legal a:hover{color:var(--txt)}
.wa-float{position:fixed;right:20px;bottom:20px;width:58px;height:58px;border-radius:50%;background:var(--wa);display:grid;place-items:center;box-shadow:0 8px 24px rgba(0,0,0,.4);z-index:20}

@media (max-width:1000px){
  .cards{grid-template-columns:repeat(3,1fr)}
}
@media (max-width:900px){
  .burger{display:flex;margin-left:auto}
  .menu{display:none;position:absolute;top:72px;left:0;right:0;background:#0f0f11;border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch;gap:0;padding:8px 20px 20px}
  .menu-open .menu{display:flex}
  .menu>a,.drop>a{padding:14px 0;border-bottom:1px solid var(--line);color:var(--txt)}
  .drop>a::after{content:""}
  .drop-list{display:block;position:static;border:0;box-shadow:none;background:none;padding:4px 0 8px 12px}
  .menu .btn-sm{margin-top:14px}
  .top-in{justify-content:space-between}
  .cats{grid-template-columns:1fr 1fr;gap:12px}
  .cat-name{font-size:15px;padding:12px;flex-direction:column;align-items:flex-start;gap:2px}
  .cards{grid-template-columns:1fr 1fr;gap:12px}
  .card-name{font-size:15px}
  .prod{grid-template-columns:1fr;gap:24px}
  .contact{grid-template-columns:1fr}
  .qv-in{grid-template-columns:1fr}
  .qv-img{aspect-ratio:auto;max-height:42vh}
  .qv-img img{max-height:36vh}
  .qv-txt{padding:22px}
  .qv h3{font-size:22px}
  .hero{padding:40px 0}
  .hero-in,.split{grid-template-columns:1fr;gap:28px}
  .split.rev>div{order:2}
  .steps{grid-template-columns:1fr;gap:20px}
  .foot-in{grid-template-columns:1fr}
  .sec{padding:56px 0}
  .btn{width:100%}
  .cta .btn{width:100%}
  .btn-sm{width:auto}
}

/* video de BERCO en /pages/berco/ (Tomás, 31/10/2026): las mejores tomas de los originales, sin sonido, en bucle */
.berco-video{margin:26px 0;border-radius:14px;overflow:hidden;background:#000;border:1px solid var(--line, #2a2a2e)}
.berco-video video{width:100%;display:block;aspect-ratio:16/9;object-fit:cover}
.berco-video figcaption{font-size:12px;color:#8a8a90;padding:8px 12px}

/* Instagram con su ícono en el pie (Tomás, 31/10/2026) */
.pie-ig{display:inline-flex;align-items:center;gap:10px;text-decoration:none;color:#e8e8ea}
.pie-ig svg{flex:none;transition:color .2s}
.pie-ig:hover{color:#fff}.pie-ig:hover svg{color:var(--gold)}

/* ficha del producto (Tomás, 01/11/2026): pocos datos, en filas, con aire; y el respaldo BERCO / VAMEN abajo */
.ficha{margin-top:56px;max-width:820px}
.spec{border-top:1px solid var(--line)}
.spec div{display:grid;grid-template-columns:210px 1fr;gap:24px;padding:15px 0;border-bottom:1px solid var(--line)}
.spec dt{color:var(--muted);font-size:13px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;padding-top:3px}
.spec dd{color:var(--txt)}
.respaldo{list-style:none;display:grid;grid-template-columns:repeat(3,1fr);gap:28px;margin-top:48px;max-width:1000px}
.respaldo li{border-top:2px solid var(--gold);padding-top:14px}
.respaldo strong{display:block;font-family:'Titillium Web',Inter,system-ui,sans-serif;font-size:18px;margin-bottom:4px}
.respaldo span{color:var(--muted);font-size:15px}
@media (max-width:700px){
  .spec div{grid-template-columns:1fr;gap:2px;padding:12px 0}
  .respaldo{grid-template-columns:1fr;gap:20px}
}
.berco-cta{margin:4px 0 22px}