/* ============================================================================
   Summit — header 2d: logo al centro + capa de motion (20-sep, tarde). Referencia: header-2c.html de Diego.
   Composición: [grupo de familias] [MARCA] [grupo empresa] en una sola línea, cuadrado (radio 2 px), Nunito.
   Un solo layout de escritorio desde 1280 px (no cambia de tamaño con el ancho ni con el zoom);
   por debajo: [hamburguesa] [MARCA] [lista]. Se carga después de site.css y sobreescribe su bloque de header.
   Motion: cursor que viaja entre pestañas · paneles que entran con sus filas escalonadas · velo con desenfoque ·
   entrada de la barra al cargar · filete dorado al desplazarse · marca que se enciende al pasar.
   Todo se apaga con prefers-reduced-motion.
   ========================================================================== */
@media (min-width:1280px){ :root{--hdr-h:80px} }
:root{--hdr-ease:cubic-bezier(.2,.8,.2,1)}

.hdr{height:var(--hdr-h);border:0;overflow:visible;transform:none;transition:box-shadow var(--d3) var(--ease-out)}
.hdr.is-stuck{box-shadow:0 14px 34px -24px rgba(0,0,0,.95)}
.hdr__surface{position:relative;height:100%;border-bottom:1px solid var(--line-dark);
  background:radial-gradient(520px 420px at 50% -120px,rgba(198,161,91,.16),transparent 62%),
             linear-gradient(160deg,var(--brand-2) 0%,var(--brand-1) 55%)}
/* filete dorado que se dibuja desde el centro cuando la página ya se desplazó */
.hdr__surface::after{content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;
  background:linear-gradient(90deg,transparent 8%,var(--brand-4) 50%,transparent 92%);
  transform:scaleX(0);opacity:0;transition:transform .55s var(--hdr-ease),opacity .3s var(--ease-out)}
.hdr.is-stuck .hdr__surface::after{transform:scaleX(1);opacity:.9}
/* Los dos grupos se apoyan sobre el logo (justify-self hacia el centro), no en los extremos de la
   barra: probamos separarlos para que el menú ocupara más ventana y Diego lo rechazó. El menú es un
   bloque centrado y compacto; en pantallas muy anchas queda aire a los costados, y está bien así. */
.hdr__bar{position:relative;height:100%;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:1.5rem}
.hdr.is-keyboard *{transition:none!important}

/* marca al centro: se enciende al pasar (halo dorado + el pico sube 1 px) */
.brand{position:relative;padding:0 .5rem;margin:0 -.5rem;gap:.6rem;justify-self:center;grid-column:2;border-radius:var(--radius);
  transition:box-shadow .35s var(--ease-out)}
.brand::before,.brand::after{display:none}
/* el halo va como box-shadow (no como pseudo posicionado): un pseudo que sobresale suma scrollWidth y el check MOBILE-logo lo lee como texto cortado */
.brand__mark{width:36px;height:36px;transition:transform .35s var(--hdr-ease)}
/* el wordmark es la marca real, no texto: proporción 1000:122, así que el ancho fija el alto */
.brand__word{width:152px;height:auto;display:block;transition:transform .35s var(--hdr-ease)}
.brand__zh{font-size:.62rem;font-weight:400;letter-spacing:.1em;color:var(--on-dark-mute);margin-top:2px}

/* grupos segmentados (la «cápsula» de la referencia, cuadrada) con su cursor deslizante */
.seg{position:relative;z-index:96;display:none;align-items:center;gap:3px;padding:4px;border:1px solid #2c3446;border-radius:var(--radius);
  background:#19212f;box-shadow:inset 0 1px 0 rgba(245,243,238,.06),0 12px 30px -22px rgba(0,0,0,.9)}
/* colores sólidos (marfil al 6 %/4 % sobre midnight, precalculado): el check de contraste del nav muestrea el fondo por color.
   z-index 96 > velo (90): la animación de entrada vuelve al grupo contexto de apilamiento y sin esto el velo tapaba sus paneles */
.fams{grid-column:1;justify-self:end}
.corp{grid-column:3;justify-self:start;background:#141c2a;border-color:#252d3d}
.seg__cur{position:absolute;top:4px;left:0;height:34px;width:100px;transform-origin:0 50%;border-radius:var(--radius);background:rgba(245,243,238,.1);
  box-shadow:inset 0 1px 0 rgba(245,243,238,.08);opacity:0;pointer-events:none;
  transition:transform .3s var(--hdr-ease),opacity .2s var(--ease-out)}   /* ancho fijo: el JS lo escala con scaleX (sin layout) */
.seg__cur.is-on{opacity:1}
.fam__i{display:flex}            /* estático: el panel de cada familia se alinea al borde del grupo, no a la pestaña */
.corp__i{position:relative;display:flex}
.fam,.corp__a{position:relative;z-index:1;display:inline-flex;align-items:center;gap:.45rem;height:34px;padding:0 .55rem;border:0;
  border-radius:var(--radius);background:transparent;font-family:inherit;font-size:.78rem;font-weight:600;letter-spacing:.005em;
  color:rgba(245,243,238,.86);white-space:nowrap;cursor:pointer;
  transition:color var(--d2) var(--ease-out),background var(--d2) var(--ease-out),transform .12s var(--ease-out)}
.fam:active,.corp__a:active,.corp .util:active{transform:scale(.96)}
.fam.is-on{background:var(--brand-4);color:var(--brand-1);
  box-shadow:0 0 0 1px rgba(198,161,91,.35),0 10px 22px -12px rgba(198,161,91,.85)}
.fam[aria-expanded="true"]{color:var(--on-dark)}
.corp__a{color:rgba(245,243,238,.74);padding:0 .55rem}
.corp__a::after{content:"";position:absolute;left:.55rem;right:.55rem;bottom:5px;height:1.5px;background:var(--brand-4);
  transform:scaleX(0);transform-origin:left;transition:transform .28s var(--hdr-ease)}
/* La página actual se marca IGUAL en todo el menú: oro sólido. Antes las familias y el catálogo
   se rellenaban y Aplicaciones, Calidad y Empresa solo llevaban un filete, así que parecían no estar
   marcadas. Como solo una entrada puede ser la actual, los dos oros nunca compiten. */
.corp__a.is-on{background:var(--brand-4);color:var(--brand-1);
  box-shadow:0 0 0 1px rgba(198,161,91,.35),0 10px 22px -12px rgba(198,161,91,.85)}
.corp__a.is-on::after{display:none}
.corp__a .chev{width:11px;height:11px;opacity:.7;transition:transform .3s var(--hdr-ease)}
/* «Catálogo»: el destino principal del sitio. Destacado en oro, sin competir con el CTA marfil. */
.corp__a--cat{color:var(--brand-5);background:rgba(198,161,91,.12);box-shadow:inset 0 0 0 1px rgba(198,161,91,.38);
  font-weight:700;gap:.4rem}
.corp__a--cat b{font-size:.68rem;font-weight:700;color:var(--brand-4);font-variant-numeric:tabular-nums}
.corp__a--cat::after{display:none}
.corp__a--cat.is-on{background:var(--brand-4);color:var(--brand-1);box-shadow:none}
.corp__a--cat.is-on b{color:var(--brand-1);opacity:.75}
.corp__a[aria-expanded="true"]{color:var(--on-dark)}
.corp__a[aria-expanded="true"] .chev{transform:rotate(180deg)}
.fam:focus-visible,.corp__a:focus-visible{outline:2px solid var(--brand-4);outline-offset:1px}

/* utilidades dentro del grupo empresa */
.corp .util{position:relative;z-index:1;height:34px;padding:0 .55rem;border-color:transparent;font-size:.78rem;font-weight:600;
  color:rgba(245,243,238,.86);transition:color var(--d2) var(--ease-out),background var(--d2) var(--ease-out),
  transform .2s var(--hdr-ease),box-shadow .25s var(--ease-out)}
.corp .util svg{transition:transform .3s var(--hdr-ease)}
.hdr .util--search{width:34px;height:34px;padding:0;justify-content:center}
.hdr .util--search .util__t,.hdr .util--search kbd{display:none}
.util--lang{gap:.35rem}
.util--lang .chev{width:11px;height:11px;transition:transform .3s var(--hdr-ease)}
.util--lang[aria-expanded="true"] .chev{transform:rotate(180deg)}
.corp .util--list{background:var(--on-dark);border-color:var(--on-dark);color:var(--brand-1);font-weight:700;gap:.5rem;margin-left:.25rem}
.util--list .util__t{display:none}
.util__n{min-width:18px;height:18px;padding:0 .3rem;border-radius:var(--radius);background:var(--brand-1);color:var(--on-dark);font-size:.68rem;font-weight:700}
.burger{display:none;grid-column:1;justify-self:start}

/* paneles: oscuros, cuadrados, entran con sus filas escalonadas; puente invisible para que el puntero no los cierre al bajar */
.fpan,.drop,.langm,.lpop{z-index:95}
.fpan{position:absolute;top:calc(100% + 19px);left:0;width:max-content;min-width:31rem;max-width:min(52rem,calc(100vw - 2rem));
  padding:1.1rem 1.2rem 1.25rem;background:var(--brand-1);border:1px solid var(--line-dark);color:var(--on-dark);
  box-shadow:0 34px 70px -30px rgba(0,0,0,.95),0 0 0 1px rgba(198,161,91,.08)}
.fpan--wide{min-width:46rem}
.fpan::before,.drop::before{content:"";position:absolute;left:0;right:0;top:-24px;height:24px}   /* puente */
.fpan:not([hidden]),.drop:not([hidden]),.langm:not([hidden]),.lpop:not([hidden]){animation:panIn .28s var(--hdr-ease) both}
.fpan__head{display:grid;grid-template-columns:96px minmax(0,1fr) auto;gap:1rem;align-items:center;padding-bottom:.9rem;border-bottom:1px solid var(--line-dark-soft)}
.fpan__ph{overflow:hidden;border-radius:var(--radius)}
.fpan__ph img{width:96px;aspect-ratio:4/3;height:auto;object-fit:cover;display:block;background:var(--brand-2);transform-origin:50% 50%}
.fpan:not([hidden]) .fpan__ph img{animation:fpanKb 9s var(--ease-out) both}
.fpan__n{margin:0;font-size:1.05rem;font-weight:800;line-height:1.2;color:var(--on-dark)}
.fpan__n b{font-size:.75rem;color:var(--brand-4);margin-right:.45rem;font-variant-numeric:tabular-nums}
.fpan__m{margin:.3rem 0 0;font-size:.8rem;color:var(--on-dark-soft);max-width:none}
.fpan__open{display:inline-flex;align-items:center;gap:.4rem;height:34px;padding:0 .8rem;border-radius:var(--radius);
  background:var(--brand-4);color:var(--brand-1);font-size:.8125rem;font-weight:700;white-space:nowrap;
  transition:background var(--d2) var(--ease-out),transform .2s var(--hdr-ease),box-shadow .25s var(--ease-out)}
.fpan__open svg{transition:transform .25s var(--hdr-ease)}
.fpan__grid{list-style:none;margin:.55rem 0 0;padding:0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 1.25rem}
.fpan--wide .fpan__grid{grid-template-columns:repeat(3,minmax(0,1fr))}
.fpan:not([hidden]) .fpan__grid li{animation:rowIn .36s var(--hdr-ease) both}
.fpan__grid li:nth-child(1){animation-delay:40ms}  .fpan__grid li:nth-child(2){animation-delay:60ms}  .fpan__grid li:nth-child(3){animation-delay:80ms}
.fpan__grid li:nth-child(4){animation-delay:100ms} .fpan__grid li:nth-child(5){animation-delay:120ms} .fpan__grid li:nth-child(6){animation-delay:140ms}
.fpan__grid li:nth-child(7){animation-delay:160ms} .fpan__grid li:nth-child(8){animation-delay:180ms} .fpan__grid li:nth-child(9){animation-delay:200ms}
.fpan__grid li:nth-child(10){animation-delay:220ms} .fpan__grid li:nth-child(11){animation-delay:240ms} .fpan__grid li:nth-child(12){animation-delay:260ms}
.fpan__grid li:nth-child(13){animation-delay:280ms} .fpan__grid li:nth-child(14){animation-delay:300ms} .fpan__grid li:nth-child(15){animation-delay:320ms}
.fpan__grid a{display:flex;align-items:baseline;justify-content:space-between;gap:1rem;padding:.48rem .45rem;border-radius:var(--radius);
  font-size:.86rem;font-weight:600;color:var(--on-dark-soft);transition:background var(--d2) var(--ease-out),color var(--d2) var(--ease-out),transform .2s var(--hdr-ease)}
.fpan__grid a b{font-weight:600;font-size:.78rem;color:var(--on-dark-mute);font-variant-numeric:tabular-nums}
.fpan__grid a:focus-visible,.fpan__open:focus-visible{outline:2px solid var(--brand-4);outline-offset:-2px}
.drop{position:absolute;top:calc(100% + 23px);left:auto;right:0;min-width:22rem;display:grid;padding:.35rem;background:var(--brand-1);
  border:1px solid var(--line-dark);box-shadow:0 34px 70px -30px rgba(0,0,0,.95),0 0 0 1px rgba(198,161,91,.08)}
.drop__i{padding:.8rem .85rem;border-bottom:1px solid var(--line-dark-soft);border-radius:var(--radius);transition:background var(--d2) var(--ease-out),transform .2s var(--hdr-ease)}
.drop__i:last-child{border-bottom:0}
.drop__i--dup{display:none}
.drop:not([hidden]) .drop__i,.langm:not([hidden]) .langm__i{animation:rowIn .34s var(--hdr-ease) both}
.drop__i:nth-child(1),.langm__i:nth-child(1){animation-delay:40ms} .drop__i:nth-child(2),.langm__i:nth-child(2){animation-delay:70ms}
.drop__i:nth-child(3),.langm__i:nth-child(3){animation-delay:100ms} .drop__i:nth-child(4){animation-delay:130ms}
.drop__i:nth-child(5){animation-delay:160ms} .drop__i:nth-child(6){animation-delay:190ms}
.drop__t{font-size:.95rem}
.drop__d{font-size:.8rem}
.langm,.lpop{top:calc(100% + 23px);box-shadow:0 34px 70px -30px rgba(0,0,0,.95),0 0 0 1px rgba(198,161,91,.08)}
.nav-shade{position:fixed;inset:var(--hdr-h) 0 0;z-index:90;background:rgba(11,18,32,.45);opacity:0;visibility:hidden;pointer-events:none;
  -webkit-backdrop-filter:blur(6px) saturate(.85);backdrop-filter:blur(6px) saturate(.85);
  transition:opacity .28s var(--ease-out),visibility .28s}
.nav-shade.is-on{opacity:1;visibility:visible;pointer-events:auto}

/* entrada de la barra al cargar (solo CSS: sin JS también termina visible) */
.brand{animation:brandIn .46s var(--hdr-ease) both}
.fams{animation:segInL .46s .05s var(--hdr-ease) both}
.corp{animation:segInR .46s .1s var(--hdr-ease) both}
@keyframes brandIn{from{opacity:0;transform:translateY(-6px) scale(.96)}to{opacity:1;transform:none}}
@keyframes segInL{from{opacity:0;transform:translateX(14px)}to{opacity:1;transform:none}}
@keyframes segInR{from{opacity:0;transform:translateX(-14px)}to{opacity:1;transform:none}}
@keyframes panIn{from{opacity:0;transform:translateY(-10px) scale(.985)}to{opacity:1;transform:none}}
@keyframes rowIn{from{opacity:0;transform:translateY(7px)}to{opacity:1;transform:none}}
@keyframes fpanKb{from{transform:scale(1)}to{transform:scale(1.08)}}

@media (hover:hover) and (pointer:fine){
  .brand:hover{box-shadow:0 0 0 6px rgba(198,161,91,.06),0 0 36px 8px rgba(198,161,91,.16)}
  .brand:hover .brand__mark{transform:translateY(-1px) scale(1.07)}
  .brand:hover .brand__word{transform:translateX(1px)}
  .fam:not(.is-on):hover,.corp__a:hover{color:var(--on-dark)}
  .corp__a--cat:not(.is-on):hover{background:rgba(198,161,91,.2);color:var(--brand-5)}
  .corp__a--cat.is-on:hover{background:var(--brand-5)}
  .corp__a.is-on:hover{background:var(--brand-5)}
  .fam.is-on:hover{background:var(--brand-5)}
  .corp__a:not(.is-on):hover::after{transform:scaleX(1)}
  .corp .util:not(.util--list):hover{border-color:transparent;color:var(--on-dark)}
  .corp .util--search:hover svg{transform:scale(1.15)}
  .corp .util--list:hover{background:#fff;border-color:#fff;transform:translateY(-1px);box-shadow:0 10px 24px -12px rgba(245,243,238,.7)}
  .fpan__grid a:hover{background:rgba(245,243,238,.07);color:var(--on-dark);transform:translateX(4px)}
  .fpan__open:hover{background:var(--brand-5);transform:translateY(-1px);box-shadow:0 10px 24px -12px rgba(198,161,91,.8)}
  .fpan__open:hover svg{transform:translateX(3px)}
  .drop__i:hover{background:var(--brand-2);transform:translateX(4px)}
}

/* escritorio: un solo layout desde 1280 (no cambia con el ancho) */
@media (min-width:1280px){
  .seg{display:flex}
  .util--lang{display:inline-flex}
}

/* móvil y tablet (<1280): [hamburguesa] [marca] [lista]; buscador, familias e idiomas en el cajón */
@media (max-width:1279px){
  .hdr__bar{gap:.75rem}
  .corp{display:flex;justify-self:end;padding:0;border:0;background:none;gap:.35rem;box-shadow:none;animation:none}
  .fams{animation:none}
  .corp__a,.corp__i--drop,.langsw,.hdr .util--search,.corp .seg__cur{display:none}
  .corp .util{height:44px;border-color:var(--line-dark)}
  .corp .util--list{padding:0 .7rem;margin-left:0}
  .burger{display:grid}
  .drawer{display:block}
}
@media (max-width:479px){
  .hdr__bar{gap:.5rem}
  .corp .util--list{padding:0 .5rem}
  .util__n{min-width:0;height:auto;padding:0;background:none;color:inherit;font-size:.85rem}
  .brand{gap:.45rem} .brand__mark{width:28px;height:28px} .brand__word{width:118px} .brand__zh{font-size:.62rem}
}
@media (prefers-reduced-motion:reduce){ .hdr *,.nav-shade,.hdr__surface::after{animation:none!important;transition:none!important} }