:root{
  /* Paleta de marca Puronics PR */
  --azul:#08307D;        /* azul oscuro corporativo */
  --naranja:#FA4E1D;     /* naranja intenso */
  --cian:#7EF0FF;        /* celeste pastel */
  --azul-cl:#1896D2;     /* degradado, claro */
  --azul-os:#05426D;     /* degradado, oscuro */

  --tinta:#08243F; --marino:var(--azul); --porcelana:#F4F8FB; --blanco:#FFFFFF;
  --ultramar:#0B5F94; --ultramar-osc:var(--azul-os); --glaciar:#E4F3FB; --grafito:#55707F;
  --linea:#D7E3EB;
  --naranja-osc:#D93D0F;
  --fondo:var(--porcelana); --superficie:var(--blanco); --texto:var(--tinta);
  --suave:var(--grafito); --borde:var(--linea);
  --max:1180px; color-scheme:light dark; box-sizing:border-box;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --fondo:#051A2E; --superficie:#0A2742; --texto:#E6F1F7; --suave:#93AFBE;
    --borde:#143A5C; --glaciar:#0C3351; --porcelana:#051A2E; --ultramar:#5FC4EE;
  }
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:86px;-webkit-text-size-adjust:100%}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{animation-duration:.001ms!important;transition-duration:.001ms!important}}
body{margin:0;background:var(--fondo);color:var(--texto);font-family:"IBM Plex Sans",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;font-size:17px;line-height:1.62;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;height:auto;display:block}
a{color:inherit}
h1,h2,h3{font-family:"Source Serif 4",Georgia,serif;font-optical-sizing:auto;font-weight:600;line-height:1.1;letter-spacing:-.014em;margin:0}
h1{font-weight:700}
h1{font-size:clamp(2.4rem,5.6vw,4rem)}
h2{font-size:clamp(1.9rem,3.8vw,2.9rem)}
h3{font-size:clamp(1.2rem,2vw,1.45rem)}
p{margin:0 0 1em}
:focus-visible{outline:3px solid var(--ultramar);outline-offset:3px;border-radius:3px}
.cont{width:100%;max-width:var(--max);margin-inline:auto;padding-inline:24px}
.sec{padding-block:clamp(58px,7.5vw,100px)}
.centro{max-width:60ch;margin-inline:auto;text-align:center}
.lead{font-family:"Source Serif 4",Georgia,serif;font-optical-sizing:auto;font-weight:400;font-size:clamp(1.1rem,1.7vw,1.3rem);color:var(--suave);line-height:1.6}
.saltar{position:absolute;left:-9999px}
.saltar:focus{left:12px;top:12px;z-index:200;background:var(--ultramar);color:#fff;padding:10px 16px;border-radius:6px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;font-family:"IBM Plex Sans",sans-serif;font-weight:600;font-size:1rem;padding:15px 28px;border-radius:6px;border:0;cursor:pointer;text-decoration:none;transition:background .15s,transform .15s,border-color .15s;line-height:1.1}
.btn-p{background:var(--naranja);color:#FFFFFF}
.btn-p:hover{background:var(--naranja-osc);transform:translateY(-1px)}
.btn-s{background:transparent;color:var(--texto);border:1.5px solid var(--borde)}
.btn-s:hover{border-color:var(--naranja);color:var(--naranja)}
.btn-full{width:100%}
.nav{position:sticky;top:0;z-index:60;background:color-mix(in srgb,var(--superficie) 90%,transparent);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--borde)}
.nav-i{display:flex;align-items:center;gap:clamp(12px,1.6vw,22px);height:86px}
.nav-logo img{height:44px;width:auto}
.nav-tel{font-size:clamp(.88rem,.95vw,.98rem)}
.nav-l{display:flex;gap:clamp(13px,1.5vw,26px);margin-left:auto}
.nav-l a{text-decoration:none;font-size:clamp(.84rem,.92vw,.94rem);font-weight:500;color:var(--suave);white-space:nowrap}
.nav-l a:hover{color:var(--ultramar)}
.nav-tel{text-decoration:none;font-weight:600;font-size:.98rem;white-space:nowrap}
@media (max-width:560px){.nav-i{height:70px}.nav-logo img{height:34px}}
.hero{background:var(--superficie);border-bottom:1px solid var(--borde)}
.hero-i{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,.7fr);gap:clamp(32px,5vw,56px);align-items:center;padding-block:clamp(44px,5.5vw,76px)}
@media (max-width:960px){.hero-i{grid-template-columns:1fr;gap:38px}}
.hero h1{text-wrap:balance}
.hero .lead{margin-top:20px;max-width:44ch}
.autorizado{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-bottom:24px}
.autorizado span{font-size:.8rem;font-weight:600;letter-spacing:.03em;color:var(--suave)}
.autorizado img{height:26px;width:auto}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .autorizado img{filter:brightness(0) invert(1);opacity:.92}}
@media (max-width:560px){.autorizado{gap:10px}.autorizado img{height:21px}}
.pie-logos{display:flex;align-items:center;gap:22px;flex-wrap:wrap;margin-bottom:18px}
.pie-logos img{margin-bottom:0}
.pie-logos img:last-child{height:30px}
.kicker{display:inline-block;font-size:.82rem;font-weight:600;color:var(--ultramar);margin-bottom:18px;border-left:3px solid var(--ultramar);padding-left:11px}
.hero-video{position:relative;margin:0;border-radius:12px;overflow:hidden;background:#000;box-shadow:0 30px 60px -30px rgba(8,48,125,.45);max-width:340px;justify-self:center;width:100%}
.hero-video video{width:100%;height:auto;display:block}
@media (max-width:960px){.hero-video{max-width:300px}}
.hero-datos{display:flex;gap:34px;flex-wrap:wrap;margin-top:32px;padding-top:26px;border-top:1px solid var(--borde)}
.hero-datos b{display:block;font-family:"Source Serif 4",Georgia,serif;font-weight:600;font-size:1.9rem;line-height:1;color:var(--ultramar)}
.hero-datos span{font-size:.86rem;color:var(--suave)}
/* DIAGNOSTICO */
.diag{background:var(--superficie);border:1px solid var(--borde);border-radius:12px;padding:clamp(26px,3.4vw,40px);box-shadow:0 20px 50px -34px rgba(14,27,42,.5)}
.diag-cab{display:flex;justify-content:space-between;align-items:baseline;gap:16px;margin-bottom:8px}
.diag-cab h2{font-size:clamp(1.5rem,2.4vw,1.9rem)}
.diag-paso{font-size:.8rem;font-weight:600;color:var(--suave);white-space:nowrap}
.diag>p{color:var(--suave);font-size:.95rem;margin-bottom:24px}
.preg{display:none}
.preg.activa{display:block}
.preg h3{font-size:1.1rem;margin-bottom:16px;font-family:"IBM Plex Sans",sans-serif;font-weight:600;letter-spacing:-.005em}
.ops{display:grid;gap:10px}
.op{display:flex;align-items:center;gap:13px;width:100%;text-align:left;background:var(--fondo);border:1.5px solid var(--borde);border-radius:8px;padding:15px 17px;cursor:pointer;font-family:inherit;font-size:.98rem;color:var(--texto);transition:border-color .15s,background .15s}
.op:hover{border-color:var(--ultramar);background:var(--glaciar)}
.op b{font-weight:600}
.op small{display:block;color:var(--suave);font-size:.82rem;font-weight:400;margin-top:2px}
.barra{height:3px;background:var(--borde);border-radius:2px;margin-bottom:26px;overflow:hidden}
.barra i{display:block;height:100%;background:var(--ultramar);width:33%;transition:width .3s ease}
.res{display:none}
.res.activa{display:block}
.res-eti{font-size:.8rem;font-weight:600;color:var(--ultramar);margin-bottom:6px}
.res-cuerpo{display:grid;grid-template-columns:130px 1fr;gap:22px;align-items:start;margin:14px 0 20px}
@media (max-width:520px){.res-cuerpo{grid-template-columns:1fr;justify-items:center;text-align:left}}
.res-cuerpo img{
  width:130px;height:160px;max-width:none;
  object-fit:contain;object-position:center;
  background:#fff;border:1px solid var(--borde);border-radius:8px;padding:10px;
}
.res-cuerpo h3{margin-bottom:8px}
.res-cuerpo p{font-size:.93rem;color:var(--suave);margin:0}
.res ul{list-style:none;padding:0;margin:14px 0 0;display:grid;gap:8px}
.res li{font-size:.9rem;color:var(--suave);display:flex;gap:9px}
.res li::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--ultramar);flex-shrink:0;margin-top:8px}
.res-acc{display:flex;gap:10px;flex-wrap:wrap;margin-top:24px}
.reiniciar{background:none;border:0;color:var(--suave);font-family:inherit;font-size:.85rem;text-decoration:underline;cursor:pointer;padding:8px 0}
/* CERTIFICACIONES */
.cert{background:var(--fondo);border-bottom:1px solid var(--borde)}
.cert-i{display:flex;align-items:center;justify-content:center;gap:clamp(28px,6vw,72px);flex-wrap:wrap;padding-block:30px}
.cert-i img{height:44px;width:auto;opacity:.75;filter:grayscale(1);transition:opacity .2s,filter .2s}
.cert-i img:hover{opacity:1;filter:none}
.cert-i img.wqa{height:60px}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .cert-i img{filter:grayscale(1) invert(1) brightness(1.7)}}
/* ETAPAS */
.etapas{display:grid;grid-template-columns:repeat(auto-fit,minmax(215px,1fr));gap:0;margin-top:46px;border:1px solid var(--borde);border-radius:10px;overflow:hidden;background:var(--superficie)}
.etapa{padding:28px 24px;border-right:1px solid var(--borde)}
.etapa h3{margin-top:0}
.etapas-2{grid-template-columns:repeat(auto-fit,minmax(330px,1fr))}
.etapa-eti{display:block;font-family:"IBM Plex Sans",sans-serif;font-size:.78rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--naranja);margin-bottom:10px}
.etapa-nota{margin-top:14px!important;padding-top:13px;border-top:1px solid var(--borde);font-size:.84rem!important}
.etapa:last-child{border-right:0}
@media (max-width:900px){.etapa{border-right:0;border-bottom:1px solid var(--borde)}.etapa:last-child{border-bottom:0}}
.etapa-n{font-family:"Source Serif 4",Georgia,serif;font-weight:600;font-size:2.2rem;color:var(--ultramar);line-height:1;display:block;margin-bottom:12px}
.etapa h3{font-size:1.16rem;margin-bottom:8px}
.etapa p{font-size:.88rem;color:var(--suave);margin:0}
/* PRODUCTOS */
.grupo-tit{display:flex;align-items:baseline;gap:14px;margin:52px 0 22px}
.grupo-tit h3{font-family:"IBM Plex Sans",sans-serif;font-size:.83rem;font-weight:600;letter-spacing:.09em;text-transform:uppercase;color:var(--suave);white-space:nowrap}
.grupo-tit span{flex:1;height:1px;background:var(--borde)}
.grid-p{display:grid;grid-template-columns:repeat(auto-fit,minmax(272px,1fr));gap:20px}
.card{background:var(--superficie);border:1px solid var(--borde);border-radius:10px;overflow:hidden;display:flex;flex-direction:column;transition:border-color .18s,transform .18s}
.card:hover{border-color:var(--ultramar);transform:translateY(-3px)}
/* --- panel de imagen corregido --- */
.card-img{
  background:#fff;
  flex:0 0 auto;
  height:220px;
  padding:20px;
  display:flex;
  align-items:center;
  justify-content:center;
  overflow:hidden;
  border-bottom:1px solid var(--borde);
}
.card-img img{
  width:100%;
  height:100%;
  max-width:none;
  max-height:none;
  object-fit:contain;
  object-position:center;
}
.card-b{padding:24px;display:flex;flex-direction:column;flex:1}
.card h3{margin-bottom:4px}
.card-tipo{font-size:.8rem;color:var(--ultramar);font-weight:600;margin-bottom:12px}
.card ul{list-style:none;padding:0;margin:0 0 20px;display:grid;gap:8px}
.card li{font-size:.885rem;color:var(--suave);display:flex;gap:9px;line-height:1.45}
.card li::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--ultramar);flex-shrink:0;margin-top:8px}
.card .btn{margin-top:auto}
.card-link{font-size:.86rem;color:var(--ultramar);text-decoration:none;font-weight:600;display:inline-block;margin-top:10px;text-align:center}
.card-link:hover{text-decoration:underline}
/* TABLA */
.tabla-wrap{overflow-x:auto;margin-top:46px;border:1px solid var(--borde);border-radius:10px;background:var(--superficie)}
table{border-collapse:collapse;width:100%;min-width:640px;font-size:.9rem}
th,td{padding:15px 18px;text-align:left;border-bottom:1px solid var(--borde)}
thead th{font-weight:600;font-size:.82rem;color:var(--suave);background:var(--fondo)}
tbody th{font-weight:600}
tbody tr:last-child td,tbody tr:last-child th{border-bottom:0}
.si{color:var(--ultramar);font-weight:700}
.no{color:var(--suave);opacity:.5}
/* BENEFICIOS */
.oxi{background:var(--superficie);border-block:1px solid var(--borde)}
.oxi-intro{display:grid;grid-template-columns:1.1fr .9fr;gap:clamp(30px,5vw,64px);align-items:start}
@media (max-width:900px){.oxi-intro{grid-template-columns:1fr}}
.pasos-rejilla{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--borde);border:1px solid var(--borde);border-radius:12px;overflow:hidden}
.paso-c{margin:0;background:var(--superficie);padding:20px 18px 22px;display:flex;flex-direction:column;gap:14px}
.paso-c img{width:100%;height:124px;object-fit:contain;object-position:center;display:block}
.paso-c figcaption{display:grid;gap:6px}
.paso-c b{font-family:"Source Serif 4",Georgia,serif;font-size:1.06rem;font-weight:600;line-height:1.3}
.paso-c span{font-size:.87rem;line-height:1.55;color:var(--suave)}
.pasos-rejilla{margin-top:clamp(36px,4vw,52px)}
.paso-c img{height:160px}
@media (max-width:900px){.pasos-rejilla{grid-template-columns:repeat(2,1fr)}}
@media (max-width:540px){.pasos-rejilla{grid-template-columns:1fr}.paso-c{flex-direction:row;align-items:center;gap:18px;padding:18px}.paso-c img{width:96px;height:96px;flex:0 0 96px}}
.oxi-ahorro{margin:0;padding:22px 24px;border:1px solid var(--borde);border-radius:10px;background:var(--fondo)}
.oxi-ahorro>p:first-child{font-size:.82rem;font-weight:600;letter-spacing:.04em;text-transform:uppercase;color:var(--suave);margin:0 0 16px}
.oxi-g{display:grid;grid-template-columns:repeat(auto-fit,minmax(104px,1fr));gap:16px}
.oxi-g b{display:block;font-family:"Source Serif 4",Georgia,serif;font-weight:600;font-size:1.6rem;line-height:1;color:#3F8C2B}
.oxi-g span{font-size:.82rem;color:var(--suave)}
.oxi-pasos{margin-top:clamp(40px,5vw,64px);padding-top:clamp(32px,4vw,48px);border-top:1px solid var(--borde)}
.oxi-pasos>h3{font-family:"IBM Plex Sans",sans-serif;font-size:.83rem;font-weight:600;letter-spacing:.09em;text-transform:uppercase;color:var(--suave);margin-bottom:26px}
.oxi-pg{display:grid;grid-template-columns:repeat(auto-fit,minmax(215px,1fr));gap:26px 30px}
.oxi-paso{position:relative;padding-left:46px}
.oxi-paso b{position:absolute;left:0;top:-2px;width:32px;height:32px;border-radius:50%;background:#EAF4E4;color:#3F8C2B;display:flex;align-items:center;justify-content:center;font-family:"IBM Plex Sans",sans-serif;font-size:.95rem;font-weight:600}
.oxi-paso p{margin:0;font-size:.92rem;line-height:1.55}
.oxi-tot{display:block;margin-top:18px;padding-top:16px;border-top:1px solid var(--borde);font-family:"Source Serif 4",Georgia,serif;font-size:1.5rem;font-weight:600;color:var(--texto)}
.grid-b{display:grid;grid-template-columns:repeat(auto-fit,minmax(285px,1fr));gap:24px;margin-top:46px}
.ben{background:var(--superficie);border:1px solid var(--borde);border-radius:10px;overflow:hidden}
.ben img{width:100%;height:170px;max-width:none;object-fit:cover;object-position:center}
.ben-b{padding:22px}
.ben h3{font-size:1.2rem;margin-bottom:8px}
.ben p{font-size:.88rem;color:var(--suave);margin:0}
/* PROCESO */
.proceso{background:var(--marino);color:#E6F1F7}
.proceso h2{color:#fff}
.proceso .lead{color:#9BAEC2}
.pasos{counter-reset:p;display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:34px;margin-top:48px}
.paso{position:relative;padding-top:20px;border-top:2px solid rgba(255,255,255,.18)}
.paso::before{counter-increment:p;content:counter(p);position:absolute;top:-16px;left:0;background:var(--marino);padding-right:10px;font-family:"Source Serif 4",Georgia,serif;font-weight:600;font-size:1.5rem;color:var(--cian);line-height:1}
.paso h3{font-size:1.16rem;margin-bottom:8px;color:#fff}
.paso p{font-size:.88rem;color:#9BAEC2;margin:0}
/* OFERTA + FORM */
.cierre{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start}
@media (max-width:900px){.cierre{grid-template-columns:1fr;gap:38px}}
.oferta-n{font-family:"Source Serif 4",Georgia,serif;font-weight:600;font-size:clamp(3rem,7vw,4.4rem);color:var(--ultramar);line-height:1;display:block;margin:10px 0 14px}
.lista{list-style:none;padding:0;margin:26px 0 0;display:grid;gap:13px}
.lista li{display:flex;gap:11px;font-size:.95rem;color:var(--suave)}
.lista svg{flex-shrink:0;margin-top:4px;color:var(--ultramar)}
.form{background:var(--superficie);border:1px solid var(--borde);border-radius:12px;padding:clamp(24px,3vw,34px)}
.campo{margin-bottom:15px}
.campo label{display:block;font-size:.82rem;font-weight:600;color:var(--suave);margin-bottom:6px}
.campo input,.campo select,.campo textarea{width:100%;padding:13px 14px;border:1.5px solid var(--borde);border-radius:6px;background:var(--fondo);color:var(--texto);font-family:inherit;font-size:.98rem}
.campo textarea{resize:vertical;min-height:80px}
.campo input:focus,.campo select:focus,.campo textarea:focus{outline:none;border-color:var(--ultramar);box-shadow:0 0 0 3px rgba(24,150,210,.22)}
.campo input[aria-invalid="true"]{border-color:#C4443A}
.dos{display:grid;grid-template-columns:1fr 1fr;gap:15px}
@media (max-width:440px){.dos{grid-template-columns:1fr}}
.err{display:none;color:#C4443A;font-size:.78rem;font-weight:600;margin-top:4px}
.err.on{display:block}
.mini{font-size:.78rem;color:var(--suave);text-align:center;margin:13px 0 0}
.ok{display:none;text-align:center;padding:30px 6px}
.ok.on{display:block}
.ok h3{margin-bottom:10px}
.ok p{color:var(--suave);font-size:.93rem}
/* FAQ */
details{border-bottom:1px solid var(--borde)}
summary{cursor:pointer;list-style:none;padding:20px 40px 20px 0;position:relative;font-weight:600;font-size:1.02rem}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";position:absolute;right:6px;top:18px;font-size:1.5rem;color:var(--ultramar);line-height:1}
details[open] summary::after{content:"–"}
details p{color:var(--suave);font-size:.94rem;padding-bottom:20px;margin:0;max-width:72ch}
.faq{max-width:780px;margin:44px auto 0}
/* PIE */
.pie{background:var(--marino);color:#A7C6D8;padding-block:56px}
.pie-i{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:40px}
@media (max-width:760px){.pie-i{grid-template-columns:1fr;gap:26px}}
.pie img{height:52px;width:auto;margin-bottom:18px;filter:brightness(0) invert(1);opacity:.9}
.pie h4{color:#fff;font-size:.86rem;font-weight:600;margin-bottom:12px}
.pie a{color:#9BAEC2;text-decoration:none;display:block;padding:4px 0;font-size:.92rem}
.pie a:hover{color:#fff}
.pie p{font-size:.9rem;max-width:44ch;line-height:1.6}
.pie-f{margin-top:42px;padding-top:22px;border-top:1px solid rgba(255,255,255,.14);font-size:.79rem;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap}
.movil{position:fixed;left:0;right:0;bottom:0;z-index:70;display:none;gap:10px;padding:11px 14px calc(11px + env(safe-area-inset-bottom,0px));background:color-mix(in srgb,var(--superficie) 95%,transparent);backdrop-filter:blur(12px);border-top:1px solid var(--borde)}
.movil .btn{flex:1;padding:14px 10px;font-size:.95rem}
@media (max-width:1040px){.movil{display:flex}.pie{padding-bottom:110px}}

/* ===== Páginas de detalle de producto ===== */
.miga{font-size:.85rem;color:var(--suave);padding-block:22px}
.miga a{color:var(--suave);text-decoration:none}
.miga a:hover{color:var(--ultramar)}
.ph{padding-block:clamp(34px,4vw,56px) clamp(40px,5vw,70px);border-bottom:1px solid var(--borde)}
.ph-i{display:grid;grid-template-columns:1fr 1fr;gap:clamp(30px,5vw,62px);align-items:center}
@media(max-width:860px){.ph-i{grid-template-columns:1fr}}
.ph-img{background:#fff;border:1px solid var(--borde);border-radius:12px;height:380px;display:flex;align-items:center;justify-content:center;padding:26px}
.ph-img img{max-width:100%;max-height:100%;object-fit:contain}
.ph h1{font-size:clamp(2.1rem,4.3vw,3.1rem);line-height:1.08}
.ph-sub{font-size:1.12rem;color:var(--suave);margin-top:16px;line-height:1.6}
.ph-acc{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.ph-sellos{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.ph-sellos span{font-family:"IBM Plex Sans",sans-serif;font-size:.78rem;font-weight:600;padding:6px 12px;border-radius:999px;background:var(--glaciar);color:var(--ultramar)}
.et-lista{display:grid;gap:2px;background:var(--borde);border:1px solid var(--borde);border-radius:10px;overflow:hidden}
.et-fila{display:grid;grid-template-columns:62px 1fr;gap:20px;background:var(--superficie);padding:24px clamp(18px,3vw,30px)}
.et-fila b{font-family:"Source Serif 4",Georgia,serif;font-size:1.9rem;font-weight:600;color:var(--ultramar);line-height:1}
.et-fila h3{font-size:1.1rem;margin-bottom:7px}
.et-fila p{margin:0;font-size:.93rem;color:var(--suave);line-height:1.62}
.ficha{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:1px;background:var(--borde);border:1px solid var(--borde);border-radius:10px;overflow:hidden}
.ficha div{background:var(--superficie);padding:22px 24px}
.ficha dt{font-family:"IBM Plex Sans",sans-serif;font-size:.76rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--suave);margin-bottom:8px}
.ficha dd{margin:0;font-size:.97rem;line-height:1.5}
.cta-f{background:var(--marino);color:#E6F1F7;border-radius:12px;padding:clamp(32px,4vw,50px);text-align:center;margin-top:clamp(44px,5vw,70px)}
.cta-f h2{color:#fff;font-size:clamp(1.6rem,3vw,2.2rem)}
.cta-f p{max-width:560px;margin:14px auto 28px;color:#BBD4E2}
.aviso{font-size:.82rem;color:var(--suave);border-left:3px solid var(--borde);padding-left:15px;margin-top:30px;line-height:1.6}

/* ===== Imágenes según el ancho de pantalla ===== */
.solo-angosto{display:none}
@media (max-width:860px){
  .solo-ancho{display:none}
  .solo-angosto{display:block}
  .oxi-pasos{margin-top:30px;padding-top:0;border-top:0}
}

/* Tarjeta de producto: más alta en móvil, donde la tarjeta ocupa todo el ancho */
@media (max-width:620px){
  .card-img{height:272px;padding:16px}
}

/* Sellos de certificación: no deben dominar la pantalla pequeña */
@media (max-width:560px){
  .cert-i{gap:24px;padding-block:22px}
  .cert-i img{height:32px}
  .cert-i img.wqa{height:44px}
}

/* Resultado del diagnóstico: la miniatura crece cuando pasa a una columna */
@media (max-width:520px){
  .res-cuerpo img{width:100%;max-width:260px;height:230px}
}

/* Ficha de producto: alto proporcional en vez de 380px fijos */
.ph-img{height:clamp(250px,44vw,380px)}
@media (max-width:560px){
  .ph-img{padding:18px}
  .et-fila{grid-template-columns:42px 1fr;gap:14px;padding:20px 16px}
  .et-fila b{font-size:1.5rem}
  .miga{font-size:.8rem}
}

/* Franja de beneficios: la foto se encoge un poco en móvil */
@media (max-width:560px){
  .ben img{height:150px}
}

/* ===== Video incrustado, carga solo al pulsar ===== */
.video-yt{aspect-ratio:16/9;border:1px solid var(--borde);border-radius:12px;overflow:hidden;background:#000}
.video-yt iframe{width:100%;height:100%;border:0;display:block}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .video-yt{background:linear-gradient(150deg,#15301A,#0F3146)}}

.nota-calculo{margin:14px 0 0;font-size:.78rem;line-height:1.5;color:var(--suave)}

/* ===== Equipo destacado: tarjeta + video a dos columnas ===== */
.destacado{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,.65fr);gap:20px;align-items:center}
@media (max-width:900px){.destacado{grid-template-columns:1fr;align-items:stretch}}
.destacado-video{margin:0;background:var(--superficie);border:1px solid var(--borde);border-radius:10px;overflow:hidden;display:flex;flex-direction:column;justify-self:center;max-width:360px;width:100%}
.destacado-video video{width:100%;height:auto;display:block;background:#000}
.destacado-video figcaption{padding:16px 20px;font-size:.85rem;color:var(--suave);border-top:1px solid var(--borde)}

/* Video propio en las fichas de producto */
.video-local{margin:0 auto;border:1px solid var(--borde);border-radius:12px;overflow:hidden;background:#000;max-width:400px}
.video-local video{width:100%;height:auto;display:block}

/* ===== Panel de contacto por WhatsApp ===== */
.contacto{position:relative;overflow:hidden;background:var(--azul);color:#EAF6FD;border-radius:14px;padding:clamp(28px,4vw,40px);align-self:start}
.contacto::before{content:"";position:absolute;inset:auto -60px -90px auto;width:280px;height:280px;border-radius:50%;background:radial-gradient(circle at 30% 30%,var(--azul-cl),var(--azul-os));opacity:.5}
.contacto>*{position:relative}
.contacto h3{color:#fff;font-size:clamp(1.4rem,2.4vw,1.8rem);margin-bottom:12px}
.contacto p{font-size:.97rem;line-height:1.65;color:#C3DFF2;margin-bottom:26px}
.contacto .btn{gap:11px}
.contacto-tel{display:block;text-align:center;margin-top:16px;color:var(--cian);font-size:.95rem;font-weight:600;text-decoration:none}
.contacto-tel:hover{text-decoration:underline}
.contacto-nota{margin:26px 0 0!important;padding-top:20px;border-top:1px solid rgba(255,255,255,.16);font-size:.84rem!important;color:#9FC6E0!important}

/* El hero gana sus dos caminos */
.hero-acc{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}

/* ===== Redes sociales en el pie ===== */
.redes{display:flex;gap:12px;margin-top:18px}
.redes a{display:flex;align-items:center;justify-content:center;width:38px;height:38px;padding:0;border-radius:50%;background:rgba(255,255,255,.1);color:#C3DFF2;transition:background .18s,color .18s,transform .18s}
.redes a:hover{background:var(--naranja);color:#fff;transform:translateY(-2px)}

/* ===== WhatsApp flotante ===== */
.wa-flota{position:fixed;right:20px;bottom:20px;z-index:80;width:58px;height:58px;border-radius:50%;
  background:#25D366;color:#fff;display:flex;align-items:center;justify-content:center;
  box-shadow:0 8px 24px -6px rgba(37,211,102,.55),0 2px 8px rgba(0,0,0,.2);
  transition:transform .2s,box-shadow .2s}
.wa-flota svg{width:32px;height:32px}
.wa-flota:hover{transform:scale(1.07);box-shadow:0 12px 30px -6px rgba(37,211,102,.7),0 2px 8px rgba(0,0,0,.25)}
.wa-flota:focus-visible{outline:3px solid #fff;outline-offset:3px}
.wa-globo{position:absolute;right:72px;white-space:nowrap;background:var(--azul);color:#fff;
  font-family:"IBM Plex Sans",sans-serif;font-size:.86rem;font-weight:600;padding:9px 15px;border-radius:8px;
  opacity:0;transform:translateX(8px);pointer-events:none;transition:opacity .2s,transform .2s;
  box-shadow:0 6px 18px -6px rgba(0,0,0,.4)}
.wa-globo::after{content:"";position:absolute;right:-5px;top:50%;margin-top:-5px;border:5px solid transparent;border-left-color:var(--azul);border-right:0}
.wa-flota:hover .wa-globo,.wa-flota:focus-visible .wa-globo{opacity:1;transform:translateX(0)}
/* Donde aparece la barra inferior, el flotante sube para no taparla */
@media (max-width:1040px){
  .wa-flota{right:16px;bottom:84px;width:54px;height:54px}
  .wa-flota svg{width:29px;height:29px}
  .wa-globo{display:none}
}
@media (prefers-reduced-motion:reduce){.wa-flota,.wa-globo{transition:none}.wa-flota:hover{transform:none}}

/* ===== Menú para tablet y móvil ===== */
.nav-btn{display:none;align-items:center;justify-content:center;width:44px;height:44px;order:9;
  border:1px solid var(--borde);border-radius:9px;background:var(--superficie);color:var(--texto);cursor:pointer;padding:0;flex:0 0 auto}
.nav-btn svg{width:22px;height:22px}
.nav-btn:hover{border-color:var(--naranja);color:var(--naranja)}

/* Tablet horizontal mantiene el menú completo; el desplegable entra a 900px */
@media (max-width:900px){
  .nav-btn{display:flex}
  /* el menú sale del flujo: el teléfono necesita quien lo empuje a la derecha */
  .nav-tel{margin-left:auto}
  .nav-l{display:block;position:absolute;top:100%;left:0;right:0;margin:0;
    background:var(--superficie);border-bottom:1px solid var(--borde);
    box-shadow:0 18px 30px -22px rgba(8,48,125,.5);
    padding:6px 0;max-height:0;overflow:hidden;visibility:hidden;transition:max-height .22s ease,visibility .22s}
  .nav-l.abierto{max-height:70vh;overflow:auto;visibility:visible}
  .nav-l a{display:block;padding:13px clamp(18px,4vw,28px);font-size:1rem;border-bottom:1px solid var(--borde)}
  .nav-l a:last-child{border-bottom:0}
  .nav-i{position:relative}
}
/* Donde aparece la barra inferior, el botón de la cabecera sobra */
@media (max-width:1040px){ .nav-i>.btn{display:none} }
@media (max-width:620px){ .nav-tel{display:none} .nav-btn{margin-left:auto} }
@media (max-width:560px){ .nav-btn{width:40px;height:40px} }
@media (prefers-reduced-motion:reduce){.nav-l{transition:none}}

/* La barra inferior se esconde mientras el botón del hero está a la vista */
.movil{transition:transform .28s ease,opacity .28s ease}
.movil.oculta{transform:translateY(110%);opacity:0;pointer-events:none}
@media (prefers-reduced-motion:reduce){.movil{transition:none}}

/* La foto del Oxidize It va sobre fondo claro, como las de producto */
.ph-img-oxi{background:#fff;padding:clamp(20px,3vw,34px)}
.ph-img-oxi img{width:100%;height:auto;max-height:100%;object-fit:contain}