:root{
  --ink:#141519; --paper:#f3f4f6; --blanco:#fff; --linea:#e2e5e9; --gris:#5d6470; --gris2:#8a919e;
  --verde:#4A7D35; --verde-h:#3D6E2C; --verde-claro:#6AC43E; --kashima:#00af41;
  --grafito:#1c1e22; --sombra:0 1px 2px rgba(20,21,25,.06),0 6px 18px rgba(20,21,25,.06);
}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%}
body{font-family:'Segoe UI',system-ui,-apple-system,Roboto,sans-serif;color:var(--ink);background:var(--paper);line-height:1.5}
a{color:var(--verde)}
button,input,select{font:inherit;color:inherit}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
[hidden]{display:none!important}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.4rem;border-radius:10px;padding:.7rem 1.2rem;
  font-weight:600;text-decoration:none;border:1px solid transparent;cursor:pointer;transition:background .15s,border-color .15s}
.btn-verde{background:var(--verde);color:#fff}.btn-verde:hover{background:var(--verde-h)}
.btn-borde{background:#fff;border-color:var(--linea);color:var(--ink)}.btn-borde:hover{border-color:var(--verde)}
.link-quitar,.link-salir{background:none;border:0;color:var(--gris);text-decoration:underline;cursor:pointer;font-size:.9rem}

/* ---------- acceso ---------- */
.pagina-acceso{min-height:100vh;display:grid;place-items:center;padding:24px 16px;
  background:radial-gradient(ellipse at 50% 38%,#3e4248 0%,#24272b 45%,#111214 100%)}
.acceso{width:100%;max-width:420px;background:#fff;border-radius:18px;padding:32px 28px;box-shadow:0 20px 60px rgba(0,0,0,.45)}
.acceso-marca{display:flex;justify-content:center;margin-bottom:18px}
.acceso-marca img{max-width:240px;height:auto}
.acceso h1{font-size:1.45rem;text-align:center;letter-spacing:-.01em}
.acceso-sub{color:var(--gris);text-align:center;font-size:.95rem;margin:.4rem 0 1.2rem}
.acceso-error{background:#fdecec;color:#9b1c1c;border:1px solid #f5c2c2;border-radius:10px;padding:.6rem .8rem;margin-bottom:1rem;font-size:.92rem}
.acceso-form{display:grid;gap:.35rem}
.acceso-form label{font-weight:600;font-size:.9rem;margin-top:.5rem}
.acceso-form input{border:1px solid var(--linea);border-radius:10px;padding:.75rem .85rem;font-size:1rem;background:#fbfbfc}
.acceso-form input:focus{outline:2px solid var(--verde-claro);border-color:var(--verde)}
.acceso-form .btn{margin-top:1.1rem;padding:.85rem}
.acceso-ayuda{margin-top:1.1rem;font-size:.85rem;color:var(--gris);text-align:center}
.acceso-volver{display:block;text-align:center;margin-top:1rem;font-size:.85rem;color:var(--gris2)}

/* ---------- barra ---------- */
.barra{position:sticky;top:0;z-index:20;background:var(--ink);color:#fff;box-shadow:0 2px 10px rgba(0,0,0,.25)}
.barra-in{max-width:1400px;margin:0 auto;display:flex;align-items:center;gap:14px;padding:10px 16px}
.barra-logo{flex:none;background:#fff;border-radius:8px;padding:3px 6px;line-height:0}
.barra-logo img{height:34px;width:auto}
.buscador{flex:1;position:relative;min-width:0}
.buscador input{width:100%;border:0;border-radius:10px;padding:.72rem 2.4rem .72rem .95rem;font-size:1rem;background:#fff;color:var(--ink)}
.buscador input:focus{outline:3px solid var(--verde-claro)}
.buscador input::-webkit-search-cancel-button{-webkit-appearance:none;appearance:none;display:none}
.buscador-x{position:absolute;right:6px;top:50%;transform:translateY(-50%);border:0;background:none;font-size:1.4rem;color:var(--gris2);cursor:pointer;padding:0 .4rem}
.sugerencias{position:absolute;left:0;right:0;top:calc(100% + 6px);background:#fff;color:var(--ink);border-radius:12px;
  box-shadow:0 18px 50px rgba(0,0,0,.28);overflow:hidden;max-height:70vh;overflow-y:auto;z-index:30}
.sug-grupo{padding:6px 0;border-bottom:1px solid var(--linea)}
.sug-grupo:last-child{border-bottom:0}
.sug-tit{font-size:.72rem;text-transform:uppercase;letter-spacing:.06em;color:var(--gris2);padding:4px 14px}
.sug{display:flex;align-items:center;gap:10px;width:100%;border:0;background:none;text-align:left;padding:.5rem 14px;cursor:pointer;font-size:.93rem}
.sug:hover,.sug.on{background:#eef6ea}
.sug img{width:40px;height:40px;border-radius:6px;object-fit:cover;flex:none;background:var(--grafito)}
.sug small{color:var(--gris);display:block;font-size:.8rem}
.sug mark{background:none;color:var(--verde-h);font-weight:700}
.piloto{background:#fff7e0;border:1px solid #f1d58a;color:#6b5310;border-radius:12px;padding:.6rem .9rem;margin-bottom:14px;font-size:.92rem}
.btn-cotizacion{flex:none;background:var(--verde);color:#fff;border:0;border-radius:10px;padding:.65rem .9rem;font-weight:600;cursor:pointer}
.btn-cotizacion:hover{background:var(--verde-h)}
.cot-n{display:inline-block;min-width:1.4em;background:#fff;color:var(--verde);border-radius:99px;padding:0 .35em;margin-left:.25em;font-size:.85rem;text-align:center}
.barra-salir{flex:none;display:flex;align-items:center;gap:8px}
.barra-usuario{font-size:.85rem;color:#c9ced6;max-width:160px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.barra .link-salir{color:#c9ced6}
.vehiculo{background:#23262b;border-top:1px solid #2f3339}
.vehiculo-in{max-width:1400px;margin:0 auto;display:flex;flex-wrap:wrap;align-items:center;gap:8px 10px;padding:8px 16px}
.vehiculo-titulo{font-weight:700;font-size:.9rem;color:var(--verde-claro);letter-spacing:.02em;text-transform:uppercase}
.vehiculo select{border:1px solid #3a3f46;background:#2c3036;color:#fff;border-radius:8px;padding:.45rem .6rem;min-width:130px;max-width:220px}
.vehiculo select:disabled{opacity:.5}
.vehiculo .link-quitar{color:#c9ced6}
.vehiculo-nota{font-size:.8rem;color:#9aa1ab}

/* ---------- cuerpo ---------- */
.cuerpo{max-width:1400px;margin:0 auto;display:grid;grid-template-columns:270px 1fr;gap:20px;padding:18px 16px 60px}
.filtros{background:#fff;border:1px solid var(--linea);border-radius:14px;padding:14px;align-self:start;position:sticky;top:122px;
  max-height:calc(100vh - 140px);overflow:auto}
.filtros-cab{display:flex;justify-content:space-between;align-items:center;margin-bottom:6px}
.filtros-cerrar{display:none}
.arbol a{display:flex;justify-content:space-between;gap:8px;text-decoration:none;color:var(--ink);padding:.32rem .5rem;border-radius:8px;font-size:.92rem}
.arbol a:hover{background:#f1f3f5}
.arbol a.on{background:#e9f4e3;color:var(--verde-h);font-weight:600}
.arbol .div{font-weight:700;margin-top:.35rem}
.arbol .cat{padding-left:1.1rem}
.arbol .n{color:var(--gris2);font-weight:400;font-size:.82rem}
.filtro-bloque{border-top:1px solid var(--linea);margin-top:12px;padding-top:12px}
.filtro-bloque strong{display:block;font-size:.9rem;margin-bottom:8px}
.chips{display:flex;flex-wrap:wrap;gap:6px}
.chip{border:1px solid var(--linea);background:#fff;border-radius:99px;padding:.25rem .65rem;font-size:.82rem;cursor:pointer}
.chip:hover{border-color:var(--verde)}
.chip.on{background:var(--grafito);border-color:var(--grafito);color:#fff}
.chip .n{color:var(--gris2);margin-left:.25em}
.chip.on .n{color:#b9c0c9}
.filtro-check{display:flex;gap:8px;align-items:center;border-top:1px solid var(--linea);margin-top:12px;padding-top:12px;font-size:.9rem;cursor:pointer}

.migas{display:flex;flex-wrap:wrap;align-items:center;gap:6px 10px;margin-bottom:12px;font-size:.92rem}
.migas-volver{display:inline-flex;align-items:center;gap:6px;background:var(--grafito);color:#fff;border:0;border-radius:99px;
  padding:.42rem .95rem;font-weight:600;cursor:pointer;text-decoration:none}
.migas-volver:hover{background:#000}
.migas-ruta{color:var(--gris)}
.migas-ruta a{color:var(--verde);text-decoration:none;font-weight:600}
.migas-ruta a:hover{text-decoration:underline}
.migas-ruta b{color:var(--ink)}
.ficha .cat-txt a{color:var(--verde);text-decoration:none}
.ficha .cat-txt a:hover{text-decoration:underline}
.cargando{padding:60px 0;text-align:center;color:var(--gris)}
.res-cab{display:flex;flex-wrap:wrap;align-items:center;gap:8px 12px;margin-bottom:12px}
.btn-filtros{display:none}
.res-txt{color:var(--gris);font-size:.95rem}
.res-txt b{color:var(--ink)}
.activos{display:flex;flex-wrap:wrap;gap:6px}
.activo{background:var(--grafito);color:#fff;border:0;border-radius:99px;padding:.22rem .7rem;font-size:.8rem;cursor:pointer}
.activo::after{content:" ×";opacity:.7}

/* portada */
.portada h2{font-size:1.3rem;margin-bottom:4px}
.portada p{color:var(--gris);margin-bottom:14px}
.tiles{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:12px;margin-bottom:26px}
.tile{position:relative;display:block;border-radius:14px;overflow:hidden;background:var(--grafito);color:#fff;text-decoration:none;aspect-ratio:1/.8;box-shadow:var(--sombra)}
.tile img{width:100%;height:100%;object-fit:cover;object-position:50% 0;display:block;transition:transform .3s}
.tile:hover img{transform:scale(1.04)}
.tile span{position:absolute;left:0;right:0;bottom:0;padding:10px 12px;background:linear-gradient(transparent,rgba(0,0,0,.75));font-weight:600;font-size:.92rem}
.tile small{display:block;font-weight:400;color:#c9ced6;font-size:.78rem}

/* tarjetas */
.grilla{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:14px}
.card{background:#fff;border:1px solid var(--linea);border-radius:14px;overflow:hidden;display:flex;flex-direction:column;box-shadow:var(--sombra);transition:box-shadow .15s,transform .15s}
.card:hover{box-shadow:0 8px 28px rgba(20,21,25,.12);transform:translateY(-1px)}
.ph{position:relative;aspect-ratio:1/1;background:var(--grafito);cursor:pointer;display:block;border:0;padding:0;width:100%}
.ph img{width:100%;height:100%;object-fit:cover;display:block}
.ph-cod{position:absolute;left:8%;right:8%;top:60%;text-align:center;color:#fff;font-weight:700;font-size:clamp(.9rem,1.6vw,1.15rem);letter-spacing:.02em;line-height:1.25;word-break:break-all}
.ph-cod small{display:block;font-weight:400;color:#aeb5bf;font-size:.78em;margin-top:.25em;word-break:normal}
.ficha-foto .ph-cod{font-size:1.6rem}
.bd{padding:12px 13px 13px;display:flex;flex-direction:column;gap:4px;flex:1}
.top{display:flex;justify-content:space-between;align-items:center;gap:6px}
.cat-txt{font-size:.75rem;color:var(--gris);text-transform:uppercase;letter-spacing:.04em}
.ln{flex:none;font-size:.72rem;font-weight:700;border:1.5px solid var(--kashima);color:#0b7a34;border-radius:99px;padding:.02rem .5rem}
.card h3{font-size:1.02rem;letter-spacing:.01em;word-break:break-all}
.card h3 button{all:unset;cursor:pointer}
.card h3 button:hover{color:var(--verde)}
.nm{font-size:.9rem;color:var(--ink)}
.fit{font-size:.84rem;color:var(--gris)}
.refs{font-size:.78rem;color:var(--gris2)}
.act{display:flex;gap:8px;margin-top:auto;padding-top:8px}
.act .btn{padding:.5rem .7rem;font-size:.86rem;flex:1}
.mas{text-align:center;margin-top:22px}
.vacio{background:#fff;border:1px dashed var(--linea);border-radius:14px;padding:30px;text-align:center;color:var(--gris)}

/* ficha (modal) */
.modal,.panel{position:fixed;inset:0;z-index:50;display:flex;align-items:flex-start;justify-content:center;padding:28px 16px;overflow:auto}
.modal-fondo{position:fixed;inset:0;background:rgba(10,11,13,.6)}
.modal-caja{position:relative;background:#fff;border-radius:18px;max-width:1080px;width:100%;box-shadow:0 30px 80px rgba(0,0,0,.4)}
.modal-x{position:absolute;right:10px;top:8px;border:0;background:#fff;border-radius:99px;width:36px;height:36px;font-size:1.5rem;cursor:pointer;z-index:2;color:var(--gris)}
.ficha{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.1fr);gap:0}
.ficha-izq{display:flex;flex-direction:column;background:var(--grafito);border-radius:18px 0 0 18px;overflow:hidden}
.ficha-foto{background:var(--grafito);overflow:hidden;position:relative}
.ficha-foto img{width:100%;height:auto;display:block;aspect-ratio:1/1;object-fit:cover}
/* panel deslizable bajo la foto: caja de la línea y fotos reales del producto */
.ficha-gal{position:relative;flex:1 1 auto;min-height:280px;overflow:hidden;user-select:none;-webkit-user-select:none;
  background:radial-gradient(ellipse at 50% 45%,#3a3e44 0%,#1c1e21 75%)}
.gal-pista{position:absolute;inset:0;display:flex;overflow-x:auto;scroll-snap-type:x mandatory;scrollbar-width:none;
  -webkit-overflow-scrolling:touch;overscroll-behavior-x:contain}
.gal-pista::-webkit-scrollbar{display:none}
.gal-diap{flex:0 0 100%;scroll-snap-align:center;margin:0;position:relative;display:flex;align-items:center;justify-content:center;
  padding:22px 26px 40px}
.gal-diap img{max-width:100%;max-height:100%;object-fit:contain;-webkit-user-drag:none;filter:drop-shadow(0 14px 18px rgba(0,0,0,.45))}
.gal-diap figcaption{position:absolute;left:18px;bottom:12px;font-size:.78rem;color:#aeb4bc;letter-spacing:.04em}
.gal-flecha{position:absolute;top:50%;transform:translateY(-50%);z-index:2;width:36px;height:36px;border-radius:50%;
  border:1px solid rgba(255,255,255,.25);background:rgba(20,22,25,.65);color:#fff;font-size:1.4rem;line-height:1;cursor:pointer}
.gal-flecha.ant{left:10px}
.gal-flecha.sig{right:10px}
.gal-flecha:hover{background:var(--verde);border-color:var(--verde)}
.gal-puntos{position:absolute;right:18px;bottom:14px;z-index:2;display:flex;gap:6px}
.gal-puntos span{width:8px;height:8px;border-radius:50%;background:rgba(255,255,255,.3)}
.gal-puntos span.on{background:var(--verde)}
.ficha-info{padding:24px 26px 26px}
.ficha-info h2{font-size:1.5rem;word-break:break-all;margin:.2rem 0}
.ficha-sub{color:var(--gris);margin-bottom:10px}
.lineas{display:flex;flex-wrap:wrap;gap:6px;margin:6px 0 12px}
.lineas .chip.on{background:var(--kashima);border-color:var(--kashima)}
.ficha h4{font-size:.85rem;text-transform:uppercase;letter-spacing:.05em;color:var(--gris);margin:16px 0 6px}
.tabla{width:100%;border-collapse:collapse;font-size:.9rem}
.tabla th,.tabla td{text-align:left;padding:.4rem .5rem;border-bottom:1px solid var(--linea);vertical-align:top}
.tabla th{color:var(--gris);font-weight:600;width:45%}
.tabla.compat th{width:auto;background:#f6f7f9}
.tabla-scroll{max-height:260px;overflow:auto;border:1px solid var(--linea);border-radius:10px}
.ap{font-size:.86rem;color:var(--gris);background:#f6f7f9;border-radius:10px;padding:.6rem .75rem}
.ficha-acc{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-top:18px}
.cant{width:76px;border:1px solid var(--linea);border-radius:10px;padding:.6rem;text-align:center}

/* cotización */
.panel{justify-content:flex-end;padding:0}
.panel-caja{position:relative;background:#fff;width:100%;max-width:460px;min-height:100vh;padding:26px 22px;box-shadow:-10px 0 40px rgba(0,0,0,.3)}
.panel-caja h2{font-size:1.3rem}
.cot-nota{color:var(--gris);font-size:.9rem;margin:.3rem 0 1rem}
.cot-lista{display:grid;gap:8px;margin-bottom:16px}
.cot-item{display:grid;grid-template-columns:1fr auto auto;gap:8px;align-items:center;border:1px solid var(--linea);border-radius:10px;padding:.55rem .7rem}
.cot-item b{display:block;word-break:break-all;font-size:.92rem}
.cot-item small{color:var(--gris);font-size:.8rem}
.cot-item input{width:64px;border:1px solid var(--linea);border-radius:8px;padding:.35rem;text-align:center}
.cot-acciones{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.aviso{position:fixed;left:50%;bottom:22px;transform:translateX(-50%);background:var(--grafito);color:#fff;padding:.6rem 1rem;border-radius:10px;z-index:60;font-size:.9rem;box-shadow:0 8px 24px rgba(0,0,0,.3)}

@media (max-width:900px){
  .cuerpo{grid-template-columns:1fr;padding-top:12px}
  .filtros{position:fixed;inset:0;z-index:40;border-radius:0;max-height:none;top:0;display:none}
  .filtros.abierto{display:block}
  .filtros-cerrar{display:inline-flex;background:var(--verde);color:#fff;border:0;border-radius:8px;padding:.4rem .9rem;font-weight:600}
  .btn-filtros{display:inline-flex;background:#fff;border:1px solid var(--linea);border-radius:10px;padding:.45rem .9rem;font-weight:600}
  .ficha{grid-template-columns:1fr}
  .ficha-izq{border-radius:18px 18px 0 0}
  .ficha-gal{flex:none;height:300px}
  .barra-usuario,.vehiculo-nota{display:none}
}
@media (max-width:640px){
  .barra-in{flex-wrap:wrap;gap:8px 10px}
  .buscador{order:3;flex-basis:100%}
  .barra-salir{margin-left:auto}
  .vehiculo select{flex:1;min-width:0}
  .grilla{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
  .bd{padding:10px}
  .act{flex-direction:column}
  .filtros{top:0}
  .modal{padding:0}
  .modal-caja{border-radius:0;min-height:100vh}
  .ficha-izq{border-radius:0}
  .ficha-gal{height:260px}
  .ficha-info{padding:18px 16px 26px}
  .tiles{grid-template-columns:repeat(2,minmax(0,1fr))}
}

/* seguridad: marca de agua con el correo del usuario sobre la foto de la ficha */
.ficha-foto{user-select:none;-webkit-user-select:none}
.marca-agua{position:absolute;inset:0;pointer-events:none;display:flex;flex-direction:column;justify-content:space-around;
  transform:rotate(-24deg) scale(1.3);opacity:.13}
.marca-agua span{color:#fff;font-size:.95rem;white-space:nowrap;text-align:center;letter-spacing:.06em}
.ph img,.tile img,.ficha-foto img{-webkit-user-drag:none;user-select:none}
.grilla.cargando-res{opacity:.55;transition:opacity .15s}
.nota-tope{color:var(--gris);font-size:.9rem;margin-top:10px}

/* formato de ficha estilo catálogos de referencia: números, cruces, aplicación por marca, compartir */
.numeros{font-weight:600;color:var(--ink);background:#eef6ea;border-radius:8px;display:inline-block;padding:.25rem .6rem;margin:.1rem 0 .4rem;font-size:.92rem}
.aplicacion{border:1px solid var(--linea);border-radius:10px;padding:.5rem .75rem;max-height:240px;overflow:auto}
.aplicacion p{font-size:.9rem;padding:.25rem 0;border-bottom:1px dashed var(--linea)}
.aplicacion p:last-child{border-bottom:0}
.ap-det{margin-top:10px}
.ap-det summary{cursor:pointer;color:var(--gris);font-size:.86rem}
.ap-det .ap{margin-top:6px}
.ean{font-size:.82rem;color:var(--gris);margin-top:6px}
.compartir{display:flex;flex-wrap:wrap;align-items:center;gap:8px 10px;margin-top:16px;padding:12px;border:1px dashed var(--linea);border-radius:12px;background:#fafbfc}
.compartir b{width:100%;font-size:.92rem}
.compartir span{width:100%;font-size:.82rem;color:var(--gris);margin-top:-6px}
.btn-wa{background:#25D366;color:#fff}.btn-wa:hover{background:#1ebe5b}
/* página pública de un producto compartido */
.pagina-compartida{background:var(--paper)}
.compartida-tit{color:#c9ced6;font-weight:600}
.compartida{max-width:1080px;margin:22px auto 60px;padding:0 16px}
.compartida-ficha{background:#fff;border-radius:18px;box-shadow:var(--sombra);overflow:hidden}
.compartida-ficha h1{font-size:1.6rem;word-break:break-all;margin:.2rem 0}
.compartida .vacio h1{font-size:1.3rem;margin-bottom:.5rem}