/* Zynthex Labs — Navy premium con disciplina de laboratorio */
:root{
  --bg:#07182E;--bg-deep:#040F1F;--surface:#0D2340;--surface-2:#10294A;--line:#1B3A60;--line-2:#3A5578;
  --text:#E8EEF5;--muted:#9FB0C4;--red:#C8102E;--red-h:#A80D26;--red-soft:#FF4D63;--wa:#25D366;--ok:#3DD68C;--warn:#F5B942;
  --radius:12px;--wrap:1160px;
  --f-head:"Archivo",system-ui,sans-serif;--f-body:"IBM Plex Sans",system-ui,sans-serif;--f-mono:"IBM Plex Mono",ui-monospace,monospace;
}
*,*::before,*::after{box-sizing:border-box}
*{margin:0}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{background:var(--bg);color:var(--text);font:400 16px/1.55 var(--f-body);min-height:100vh;overflow-x:hidden}
img{max-width:100%;display:block}
a{color:inherit}
button,input{font:inherit;color:inherit}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 16px}
@media(min-width:768px){.wrap{padding:0 28px}}
h1,h2,h3{font-family:var(--f-head);font-weight:800;line-height:1.08;color:#fff;letter-spacing:-.01em}
.mono{font-family:var(--f-mono)}
.muted{color:var(--muted)}
.skip{position:absolute;left:-9999px}.skip:focus{left:16px;top:8px;z-index:99;background:#fff;color:var(--bg);padding:8px 12px;border-radius:6px}
:where(a,button,input,summary):focus-visible{outline:2px solid var(--red-soft);outline-offset:3px;border-radius:4px}

/* franja RUO + header */
.ruo-bar{background:var(--bg-deep);color:var(--muted);font:500 12px/1.4 var(--f-mono);letter-spacing:.03em;text-align:center;padding:7px 16px;border-bottom:1px solid var(--line)}
.hd{position:sticky;top:0;z-index:40;background:rgba(7,24,46,.94);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.hd-in{display:flex;align-items:center;justify-content:space-between;height:62px;position:relative}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none;font:700 15px var(--f-head);letter-spacing:.2em;color:#fff}
.logo em{font-style:normal;font-weight:700;color:var(--muted)}
.menu-btn{display:inline-flex;align-items:center;justify-content:center;background:none;border:1px solid var(--line);color:#fff;border-radius:10px;width:44px;height:44px;cursor:pointer}
.nav{display:none}
.nav a{text-decoration:none;color:var(--muted);font-size:15px;padding:12px 0}
.nav a:hover,.nav a[aria-current=page]{color:#fff}
.nav.open{display:flex;flex-direction:column;position:absolute;top:62px;left:0;right:0;background:var(--bg);border-bottom:1px solid var(--line);padding:4px 16px 14px}
@media(min-width:900px){
  .menu-btn{display:none}
  .nav,.nav.open{display:flex;flex-direction:row;position:static;gap:30px;padding:0;border:0;background:none}
  .nav a{font-size:14px;padding:6px 0}
  .nav a[aria-current=page]{box-shadow:inset 0 -2px var(--red)}
}

/* botones */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:0 24px;border-radius:999px;font:600 15px var(--f-body);text-decoration:none;cursor:pointer;border:1px solid transparent;transition:background .15s,border-color .15s,color .15s;text-align:center}
.btn-red{background:var(--red);color:#fff}.btn-red:hover{background:var(--red-h)}
.btn-ghost{border-color:var(--line-2);color:var(--text);background:transparent}.btn-ghost:hover{border-color:var(--text)}
.btn-block{width:100%}
.btn-wa-sm{display:inline-flex;align-items:center;gap:6px;min-height:36px;background:transparent;border:1px solid var(--wa);color:var(--wa);border-radius:999px;padding:0 14px;font:600 13px var(--f-body);cursor:pointer;text-decoration:none}
.btn-wa-sm:hover{background:rgba(37,211,102,.1)}

/* secciones */
.sec{padding:64px 0}
.sec+.sec{border-top:1px solid var(--line)}
.sec-hd{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:flex-end;gap:16px;margin-bottom:28px}
.sec-hd h2{font-size:clamp(26px,5.5vw,38px);margin-top:10px}
.sec-hd p{color:var(--muted);max-width:540px;margin-top:10px}
.crumb{padding:18px 0 0;font-size:13px;color:var(--muted)}
.crumb a{text-decoration:none}.crumb a:hover{color:#fff}
.page-hd{padding:36px 0 8px}
.page-hd h1{font-size:clamp(32px,7vw,52px);margin-top:10px}
.page-hd p{color:var(--muted);max-width:620px;margin-top:12px;font-size:17px}

/* hero: foto panorámica con el vial a la derecha y el espacio vacío para el titular */
.hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line);isolation:isolate;background:#050f1e}
.hero-im{position:absolute;inset:0;z-index:-2}
.hero-im picture{display:block;height:100%}
.hero-im img{width:100%;height:100%;object-fit:cover;object-position:78% 50%}
.hero::after{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(180deg,rgba(5,15,30,.15) 0%,rgba(5,15,30,.55) 45%,var(--bg) 100%)}
.hero-tx{padding:300px 0 56px;max-width:600px}
.hero h1{font-size:clamp(40px,9vw,72px);letter-spacing:-.03em;margin:0 0 18px;text-wrap:balance}
.hero p{color:var(--muted);font-size:17px;max-width:46ch}
.cta-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
@media(min-width:900px){
  .hero-im img{object-position:center}
  .hero::after{background:linear-gradient(90deg,rgba(5,15,30,.95) 0%,rgba(5,15,30,.8) 42%,rgba(5,15,30,0) 58%)}
  .hero-tx{padding:150px 0 140px}
}
.plate{margin:8px 0 0;border:1px solid var(--line);border-radius:16px;overflow:hidden;background:#050f1e}
.plate img{width:100%;height:auto}





/* grilla y tarjetas */
.grid{display:grid;grid-template-columns:1fr;gap:16px}
@media(min-width:560px){.grid{grid-template-columns:1fr 1fr}}
@media(min-width:1000px){.grid{grid-template-columns:repeat(3,1fr)}}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column}
.card-im{display:block;aspect-ratio:4/5;overflow:hidden;background:#0A1D36}
.card-im img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.card:hover .card-im img{transform:scale(1.03)}
.card-bd{padding:16px 18px 18px;display:flex;flex-direction:column;gap:6px;flex:1}
.card h3{font-size:20px}
.card h3 a{text-decoration:none}
.card h3 span{color:var(--muted);font-weight:700;font-size:15px}
.card p{color:var(--muted);font-size:14px}
.lot{font:400 12px var(--f-mono);color:var(--muted);letter-spacing:.02em}
.card-ft{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-top:auto;padding-top:12px}
.price{font:500 18px var(--f-mono);color:#fff}

/* filtros */
.filters{display:flex;gap:8px;overflow-x:auto;padding:4px 0 20px;scrollbar-width:none}
.filters::-webkit-scrollbar{display:none}
.chip{flex:0 0 auto;min-height:44px;padding:0 16px;border-radius:999px;border:1px solid var(--line-2);background:transparent;color:var(--muted);font:500 14px var(--f-body);cursor:pointer}
.chip[aria-pressed=true]{background:#fff;border-color:#fff;color:var(--bg)}

/* ficha */
.pd{display:grid;gap:28px;padding:20px 0 48px}
@media(min-width:900px){.pd{grid-template-columns:1.05fr 1fr;gap:48px;align-items:start}}
.pd-im{position:relative;border:1px solid var(--line);border-radius:16px;overflow:hidden;background:#0A1D36}
.pd-im img{width:100%;height:auto}
.badge{position:absolute;top:14px;left:14px;font:500 12px var(--f-mono);letter-spacing:.03em;background:rgba(4,15,31,.8);border:1px solid var(--line-2);color:#fff;padding:6px 10px;border-radius:999px}
.pd-info h1{font-size:clamp(34px,6vw,46px);margin:10px 0 8px}
.pd-info h1 span{color:var(--muted);font-weight:700;font-size:.55em;letter-spacing:0}
.pd-info .lead{color:var(--muted)}
.pd-price{font:500 30px var(--f-mono);color:#fff;margin:18px 0 4px}
.pd-price small{display:block;font:400 12px var(--f-body);color:var(--muted);margin-top:4px}
.lotcard{border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);padding:14px 16px;margin:18px 0;display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:10px}
.lotcard .mono{font-size:12px;color:var(--muted);letter-spacing:.04em}
.lotcard b{color:#fff;font-weight:500}
.linkish{background:none;border:0;padding:0;color:#fff;text-decoration:underline;text-underline-offset:3px;cursor:pointer;font:500 14px var(--f-body)}
.buy{display:grid;grid-template-columns:auto 1fr;gap:10px;align-items:stretch}
.qty{display:flex;border:1px solid var(--line-2);border-radius:999px;overflow:hidden}
.qty button{width:44px;background:none;border:0;cursor:pointer;font-size:18px}
.qty input{width:40px;text-align:center;background:none;border:0;font:500 16px var(--f-mono)}
.add-row{margin-top:10px}
.guar{list-style:none;padding:0;margin:20px 0 0;display:grid;gap:8px;font-size:14px;color:var(--muted)}
.guar li{display:flex;align-items:center;gap:12px}
.guar li::before{content:"";flex:0 0 14px;height:1.5px;background:var(--red)}
.ruo-note{margin-top:18px;font:500 12px var(--f-mono);letter-spacing:.03em;color:var(--muted);border-top:1px solid var(--line);padding-top:14px}
.tabs{display:flex;gap:4px;border-bottom:1px solid var(--line);overflow-x:auto}
.tabs button{background:none;border:0;padding:14px 16px;color:var(--muted);cursor:pointer;font:500 15px var(--f-body);white-space:nowrap;box-shadow:inset 0 -2px transparent}
.tabs button[aria-selected=true]{color:#fff;box-shadow:inset 0 -2px var(--red)}
.panel{padding:24px 0;color:var(--muted);max-width:760px}
.panel[hidden]{display:none}
.panel ul{padding-left:18px;margin-top:10px}
.spec{width:100%;border-collapse:collapse;font-size:14px}
.spec td{padding:10px 0;border-bottom:1px solid var(--line);vertical-align:top}
.spec td:first-child{color:var(--muted);width:40%}
.spec td:last-child{color:#fff}

/* tablas de lotes */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius)}
.lots{width:100%;border-collapse:collapse;font-size:14px;min-width:640px}
.lots th{text-align:left;font:500 12px var(--f-mono);letter-spacing:.06em;text-transform:uppercase;color:var(--muted);padding:12px 14px;border-bottom:1px solid var(--line-2);background:var(--surface)}
.lots td{padding:12px 14px;border-bottom:1px solid var(--line)}
.lots tr:last-child td{border-bottom:0}
.lots a{text-decoration:none}

/* bloques de contenido */

.photos{display:grid;grid-auto-flow:column;grid-auto-columns:74%;gap:10px;overflow-x:auto;scroll-snap-type:x mandatory;scrollbar-width:none}
.photos::-webkit-scrollbar{display:none}
.photos img{scroll-snap-align:start}
@media(min-width:768px){.photos{grid-auto-flow:row;grid-template-columns:repeat(3,1fr);overflow:visible}}
.photos img{border-radius:10px;border:1px solid var(--line);aspect-ratio:4/5;object-fit:cover;width:100%}
.prose{max-width:760px;color:var(--muted)}
.prose h2{font-size:24px;margin:36px 0 10px}
.prose p,.prose li{margin-top:10px}
.prose ul{padding-left:20px}
.prose strong{color:#fff}

/* verificar */
.verify{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:22px;max-width:620px}
.verify form{display:flex;gap:10px;flex-wrap:wrap;margin-top:12px}
.verify input{flex:1 1 220px;min-height:48px;background:var(--bg);border:1px solid var(--line-2);border-radius:999px;padding:0 18px;font:500 16px var(--f-mono);text-transform:uppercase}
.verify input::placeholder{color:#5E7390;text-transform:none}
.result{margin-top:20px;max-width:620px}
.res-card{display:grid;grid-template-columns:96px 1fr;gap:16px;background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:16px}
.res-card img{border-radius:10px;width:96px;height:120px;object-fit:cover}
.res-card h3{font-size:20px}
.res-card dl{display:grid;grid-template-columns:auto 1fr;gap:4px 14px;margin-top:10px;font:400 13px var(--f-mono);color:var(--muted)}
.res-card dd{color:#fff;margin:0}
.res-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}
.pill{display:inline-block;font:500 12px var(--f-mono);letter-spacing:.03em;padding:4px 10px;border-radius:999px;border:1px solid}
.pill.ok{color:var(--ok);border-color:var(--ok)}
.pill.warn{color:var(--warn);border-color:var(--warn)}

/* FAQ */
.faq{max-width:780px}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{list-style:none;cursor:pointer;padding:18px 32px 18px 0;font:600 17px var(--f-body);color:#fff;position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary::before,.faq summary::after{content:"";position:absolute;right:6px;top:50%;width:14px;height:1.5px;background:var(--muted);transition:transform .3s cubic-bezier(.16,1,.3,1)}
.faq summary::after{transform:rotate(90deg)}
.faq details[open] summary::after{transform:rotate(0)}
.faq details p{color:var(--muted);padding:0 0 18px}

/* banda CTA */
.cta-band{background:linear-gradient(135deg,var(--surface) 0%,#0A1D36 100%);border:1px solid var(--line);border-radius:18px;padding:32px 24px;display:flex;flex-wrap:wrap;gap:20px;justify-content:space-between;align-items:center}
.cta-band h2{font-size:clamp(24px,5vw,32px)}

/* footer */
.ft{border-top:1px solid var(--line);background:var(--bg-deep);padding:48px 0 110px;margin-top:40px;font-size:14px;color:var(--muted)}
.ft-cols{display:grid;gap:28px;grid-template-columns:1fr 1fr}
.ft-cols>div:first-child{grid-column:1/-1}
@media(min-width:900px){.ft-cols{grid-template-columns:2fr 1fr 1fr 1fr}.ft-cols>div:first-child{grid-column:auto}}
.ft b{display:block;color:#fff;font:600 13px var(--f-body);margin-bottom:10px}
.ft a{text-decoration:none;display:block;padding:4px 0}.ft a:hover{color:#fff}
.ft-disc{margin-top:36px;padding-top:20px;border-top:1px solid var(--line);font-size:12px;line-height:1.6}

/* flotantes */
.wafab{position:fixed;right:16px;bottom:16px;z-index:50;width:58px;height:58px;border-radius:50%;background:var(--wa);display:grid;place-items:center;box-shadow:0 8px 24px rgba(0,0,0,.35)}
.cart-chip{position:fixed;right:84px;bottom:22px;z-index:50;min-height:46px;padding:0 18px;border-radius:999px;background:#fff;color:var(--bg);border:0;font:600 14px var(--f-body);cursor:pointer;box-shadow:0 8px 24px rgba(0,0,0,.35)}
.cart-chip[hidden]{display:none}
.cart{position:fixed;inset:0;width:100%;height:100%;max-width:none;max-height:none;margin:0;padding:0;border:0;color:var(--text);background:rgba(2,8,18,.6);justify-content:flex-end}
.cart[open]{display:flex}
.cart::backdrop{background:transparent}
body:has(.cart[open]){overflow:hidden}
.cart-in{width:min(420px,100%);height:100%;background:var(--bg);border-left:1px solid var(--line);display:flex;flex-direction:column}
.cart-hd{display:flex;justify-content:space-between;align-items:center;padding:18px 20px;border-bottom:1px solid var(--line)}
.cart-hd h2{font-size:20px}
.cart-x{background:none;border:1px solid var(--line);border-radius:10px;width:40px;height:40px;cursor:pointer;color:#fff}
.cart-list{list-style:none;padding:8px 20px;overflow-y:auto;flex:1}
.cart-list li{display:grid;grid-template-columns:56px 1fr auto;gap:12px;align-items:center;padding:12px 0;border-bottom:1px solid var(--line)}
.cart-list img{width:56px;height:70px;object-fit:cover;border-radius:8px}
.cart-list .nm{color:#fff;font-weight:600;font-size:15px}
.cart-list .sub{font:400 12px var(--f-mono);color:var(--muted)}
.cart-list .rm{background:none;border:0;color:var(--muted);cursor:pointer;font-size:13px;text-decoration:underline}
.cart-ft{padding:16px 20px 24px;border-top:1px solid var(--line)}
.cart-total{display:flex;justify-content:space-between;font:500 18px var(--f-mono);color:#fff;margin-bottom:14px}
.cart-empty{padding:40px 20px;color:var(--muted)}
.toast{position:fixed;left:50%;bottom:90px;transform:translateX(-50%) translateY(20px);opacity:0;z-index:70;background:#fff;color:var(--bg);padding:10px 18px;border-radius:999px;font:600 14px var(--f-body);transition:.25s;pointer-events:none}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}
.notfound{padding:80px 0;text-align:center}
.notfound p{color:var(--muted);margin:12px 0 24px}
@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}

/* ---- superficies del navegador ---- */
::selection{background:var(--red);color:#fff}
html{scrollbar-color:var(--line-2) var(--bg-deep);accent-color:var(--red)}
input{caret-color:var(--red-soft)}
.price,.lot,.lots td.mono,.pd-price,.cart-total{font-variant-numeric:tabular-nums}
.field-label{display:block;font:500 13px var(--f-body);color:var(--muted)}

/* ---- franja de especificaciones ---- */
.specline{border-bottom:1px solid var(--line);background:var(--bg-deep)}
.specline ul{list-style:none;padding:14px 0;margin:0;display:flex;flex-wrap:wrap;gap:6px 0;justify-content:space-between;font:400 13px var(--f-body);color:var(--muted)}
.specline li{padding-right:24px}
.specline b{font:500 14px var(--f-mono);color:#fff;letter-spacing:.02em}
@media(max-width:767px){.specline ul{display:grid;grid-template-columns:1fr 1fr;gap:10px 16px}.specline li{padding:0}}

/* ---- índice de líneas ---- */
.line-index{border-top:1px solid var(--line)}
.line-row{display:grid;grid-template-columns:1fr;gap:4px;padding:22px 0;border-bottom:1px solid var(--line);text-decoration:none;position:relative}
.line-name{font:800 clamp(26px,5vw,44px)/1 var(--f-head);color:#fff;letter-spacing:-.02em;transition:color .25s}
.line-items{font:400 13px var(--f-mono);color:var(--muted);letter-spacing:.02em}
.line-row::after{content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;background:var(--red);transform:scaleX(0);transform-origin:left;transition:transform .5s cubic-bezier(.16,1,.3,1)}
.line-row:hover::after,.line-row:focus-visible::after{transform:scaleX(1)}
.line-row:hover .line-name{color:var(--red-soft)}
@media(min-width:900px){.line-row{grid-template-columns:1fr auto;align-items:baseline}}

/* ---- flujo de pedido ---- */
.flow{list-style:none;padding:0;margin:0;display:grid;gap:28px;counter-reset:step}
.flow li{counter-increment:step;position:relative;padding-top:52px;border-top:1px solid var(--line)}
.flow li::before{content:counter(step);position:absolute;top:14px;left:0;font:500 13px var(--f-mono);color:var(--red-soft)}
.flow h3{font-size:22px;margin-bottom:8px}
.flow p{color:var(--muted);max-width:36ch}
@media(min-width:768px){.flow{grid-template-columns:repeat(3,1fr);gap:40px}}

/* ---- métodos (calidad) ---- */
.methods{display:grid;gap:0;margin:0;border-top:1px solid var(--line)}
.methods>div{display:grid;gap:10px;padding:26px 0;border-bottom:1px solid var(--line)}
.methods dt{font:800 clamp(28px,5vw,40px)/1 var(--f-head);color:#fff}
.methods dt span{display:block;margin-top:8px;font:500 13px var(--f-body);color:var(--muted);letter-spacing:0}
.methods dd{margin:0;color:var(--muted);max-width:62ch}
@media(min-width:900px){.methods>div{grid-template-columns:280px 1fr;align-items:baseline}}

/* ---- el único momento de movimiento: la portada se enciende ---- */
@media(prefers-reduced-motion:no-preference){
  .hero-im img{animation:zx-light 1.8s cubic-bezier(.16,1,.3,1) both}
  @keyframes zx-light{from{filter:brightness(.55) saturate(.8);transform:scale(1.045)}to{filter:none;transform:none}}
}

/* portada en celular: la foto arriba, el titular debajo (sin texto sobre la etiqueta) */
@media(max-width:899px){
  .hero-im{position:relative;inset:auto;aspect-ratio:4/5;max-height:62vh;width:100%;z-index:0}
  .hero-im img{object-position:50% 34%}
  .hero-im::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(5,15,30,0) 55%,#050f1e 100%)}
  .hero::after{display:none}
  .hero-tx{padding:8px 0 48px;margin:0 auto;text-align:center}
  .hero p{margin-left:auto;margin-right:auto}
  .hero .cta-row{justify-content:center}
}

/* ---- así llega tu pedido ---- */
.kit{display:grid;gap:28px;align-items:center}
.kit-im{margin:0}
.kit-list{list-style:none;padding:0;margin:0;border-top:1px solid var(--line)}
.kit-list li{display:grid;gap:4px;padding:16px 0;border-bottom:1px solid var(--line)}
.kit-list b{font:700 18px var(--f-head);color:#fff}
.kit-list span{color:var(--muted);font-size:15px}
@media(min-width:900px){.kit{grid-template-columns:1.35fr 1fr;gap:48px}}

/* ---- para qué se estudia ---- */
.line-meta{display:grid;gap:6px}
.line-study{font:400 15px var(--f-body);color:var(--text);max-width:52ch}
.research-note{margin-top:14px;font-size:13px;color:var(--muted);border-left:0;border-top:1px solid var(--line);padding-top:12px}
.line-study-cat{color:var(--muted);margin:-6px 0 20px;min-height:1.5em;max-width:70ch}
@media(min-width:900px){.line-meta{justify-items:end;text-align:right}}

/* ficha estática para buscadores (el JS la reemplaza al cargar) */
.pd-static{padding:24px 0 48px;max-width:760px;color:var(--muted)}
.pd-static h1{font-size:clamp(34px,6vw,46px);margin:12px 0}
.pd-static h1 span{color:var(--muted);font-size:.55em}
.pd-static h2{font-size:22px;margin:20px 0 8px}
.pd-static p{margin-top:10px}

/* ---- botones ordenados en celular ---- */
@media(max-width:559px){
  .cta-row{flex-direction:column;align-items:stretch}
  .cta-row .btn{width:100%}
  .cta-band{text-align:center;justify-content:center}
  .cta-band>div{width:100%}
  .buy{grid-template-columns:1fr}
  .qty{justify-content:space-between}
  .qty input{flex:1}
  .sec-hd .btn{width:100%}
  .res-actions>*{flex:1 1 100%;justify-content:center}
}

@media(max-width:559px){
  body.hero-cta-visible .wafab,body.hero-cta-visible .cart-chip{opacity:0;pointer-events:none;transform:translateY(12px)}
  .wafab,.cart-chip{transition:opacity .25s,transform .25s}
  .tabs button{padding:12px 9px;font-size:14px}
}

.updated{color:var(--muted);font-size:13px;padding:8px 0 40px}

/* ---- SEO: contenido pre-generado y accesibilidad ---- */
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.refs{margin-top:10px;font-size:13px;color:var(--muted)}
.refs a{color:var(--text)}
.pd-static-im{width:100%;max-width:420px;height:auto;border-radius:16px;border:1px solid var(--line);margin:16px 0}
.facts{display:grid;grid-template-columns:auto 1fr;gap:6px 18px;margin:16px 0;font-size:14px}
.facts dt{color:var(--muted)}
.facts dd{margin:0;color:var(--text)}
.btn-wa-sm{min-height:44px}

.aka{color:var(--text)}

.pep-index{list-style:none;padding:0;margin:0;border-top:1px solid var(--line)}
.pep-index li{display:grid;gap:4px;padding:16px 0;border-bottom:1px solid var(--line)}
.pep-index a{text-decoration:none;color:var(--text);font-size:17px}
.pep-index a strong{font:800 20px var(--f-head);color:#fff}
.pep-index span{color:var(--muted);font-size:14px}

/* ---- catálogo en celular: dos columnas compactas para ver más productos sin tanto scroll ---- */
@media(max-width:559px){
  .grid{grid-template-columns:1fr 1fr;gap:10px}
  .card-bd{padding:12px 12px 14px;gap:4px}
  .card h3{font-size:17px;line-height:1.15}
  .card h3 span{display:block;font-size:13px;margin-top:2px}
  .card p{display:none}
  .card .lot{font-size:10.5px;letter-spacing:0;overflow-wrap:anywhere}
  .card-ft{flex-direction:column;align-items:stretch;gap:8px;padding-top:10px}
  .price{font-size:16px}
  .card-ft .btn-wa-sm{justify-content:center;width:100%}
}
@media(max-width:559px){
  .card-im{aspect-ratio:1/1}
  .card-im img{transform:scale(1.45);transform-origin:50% 62%}
  .card:hover .card-im img{transform:scale(1.5)}
  .lot-line{display:none}
}

/* ---- ficha en celular: foto con el producto más grande y barra de pedido fija ---- */
.pd-bar{display:none}
@media(max-width:899px){
  .pd-im img{transform:scale(1.3);transform-origin:50% 60%}
  .pd-bar{display:flex;position:fixed;left:0;right:0;bottom:0;z-index:45;align-items:center;gap:12px;padding:10px 16px calc(10px + env(safe-area-inset-bottom));background:rgba(4,15,31,.96);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border-top:1px solid var(--line);transform:translateY(110%);transition:transform .25s}
  body.pd-bar-on .pd-bar{transform:none}
  .pd-bar-tx{display:grid;min-width:0;flex:1}
  .pd-bar-tx b{font:700 15px var(--f-head);color:#fff;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
  .pd-bar-tx span{font:500 14px var(--f-mono);color:var(--muted)}
  .pd-bar .btn{min-height:46px;padding:0 18px;font-size:14px;flex:0 0 auto}
  body.pd-bar-on .wafab,body.pd-bar-on .cart-chip{opacity:0;pointer-events:none;transform:translateY(12px)}
}
@media(prefers-reduced-motion:reduce){.pd-bar{transition:none}}
@media(max-width:899px){body[data-page=producto]{padding-bottom:76px}}