/* ============================================================
   AEVEXIS — "ciencia editorial / laboratorio monocromo"
   Claro, tinta sobre papel, premium. Sin color de acento: el acento es el
   negro tinta y las bandas invertidas. Rojo solo para peligro.
   Serif editorial (Fraunces) + sans actual (Instrument Sans) + datos mono.
   Tokens documentados en ../identidad/DESIGN.md — si cambian aquí, cambian allí.
   ============================================================ */
:root{
  --paper:#FFFFFF;        /* blanco, fondo */
  --surface:#F5F5F4;      /* gris cálido muy claro */
  --card:#FFFFFF;         /* tarjetas */
  --ink:#0A0A0A;          /* negro tinta */
  --ink-2:#3F3F46;        /* texto secundario */
  --muted:#6B6560;        /* apagado — 5.6:1 sobre papel, 5.2:1 sobre surface (AA) */
  --line:#E7E5E4;         /* filete */
  --line-2:#D6D3D1;
  --accent:#0A0A0A;       /* negro (acento monocromo) */
  --accent-2:#52525B;     /* gris grafito (señal) */
  --accent-soft:#F5F5F4;  /* gris muy claro (fondos) */
  --brass:#0A0A0A;        /* negro (destacados) */
  --danger:#B42318;
  --on-ink:#F6F4EE;       /* texto sobre tinta */
  --on-ink-2:rgba(246,244,238,.72);
  --maxw:1200px;
  --sh:0 1px 2px rgba(10,10,10,.05), 0 10px 34px -18px rgba(10,10,10,.28);
  --ease:cubic-bezier(.2,.7,.2,1);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--paper); color:var(--ink);
  font-family:"Instrument Sans",system-ui,-apple-system,sans-serif;
  font-size:17px; line-height:1.6; -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,.brand,.section-h,.pack-name,.q-card h3{font-family:"Fraunces",Georgia,serif;font-weight:500;letter-spacing:-.015em;line-height:1.05;text-wrap:balance}
em{font-style:italic;color:var(--accent)}
.mono,.purity,.obj-tag,.eyebrow,.rc-tag,.inst-head,.inst-foot span,.foot-bottom .mono,.dose{font-family:"JetBrains Mono",ui-monospace,monospace}

/* superficies del navegador: selección, foco, iconos */
::selection{background:var(--ink);color:var(--paper)}
:focus-visible{outline:2px solid var(--ink);outline-offset:3px;border-radius:4px}
.quality :focus-visible,.advisor :focus-visible,.showpiece :focus-visible{outline-color:var(--on-ink)}
.skip{position:absolute;top:8px;left:8px;z-index:200;padding:10px 16px;background:var(--ink);color:var(--paper);border-radius:999px;
  font-size:14px;font-weight:600;transform:translateY(-200%);transition:transform .2s}
.skip:focus{transform:none}
.ic{width:1.15em;height:1.15em;display:inline-block;vertical-align:-.2em;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;flex:none}
.icon-btn{display:grid;place-items:center;width:40px;height:40px;border-radius:10px;background:none;border:0;color:var(--muted);cursor:pointer;transition:.2s}
.icon-btn:hover{background:var(--line);color:var(--ink)}
.icon-btn .ic{width:20px;height:20px}
.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}

/* NAV */
.nav{position:sticky;top:0;z-index:40;display:flex;align-items:center;gap:20px;
  padding:12px clamp(16px,4vw,44px);background:rgba(255,255,255,.82);backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line)}
.brand{font-size:23px;font-weight:600;letter-spacing:-.01em;display:flex;align-items:center;gap:8px;padding:6px 0}
.brand .mark{color:var(--accent);font-size:16px}
.brand-thin{color:var(--muted);font-weight:400}
.nav-links{display:flex;gap:26px;margin-left:auto;font-size:15px}
.nav-links a{color:var(--ink-2);transition:color .2s;position:relative;padding:10px 0}
.nav-links a:hover{color:var(--accent)}
.nav-links a::after{content:"";position:absolute;left:0;right:0;bottom:6px;height:1px;background:var(--ink);transform:scaleX(0);transform-origin:left;transition:transform .25s var(--ease)}
.nav-links a:hover::after{transform:scaleX(1)}
.btn-sm{font-size:14px;padding:11px 18px;border:1px solid var(--ink);border-radius:999px;color:var(--ink);transition:.2s;min-height:44px;display:inline-flex;align-items:center}
.btn-sm:hover{background:var(--ink);color:var(--paper)}
.burger{display:none;width:44px;height:44px;border-radius:12px;background:none;border:1px solid transparent;color:var(--ink);cursor:pointer;place-items:center;flex:none}
.burger .ic{width:24px;height:24px}
.burger:hover{border-color:var(--line-2)}

/* botones */
.btn{display:inline-flex;align-items:center;gap:8px;font-family:"Instrument Sans",sans-serif;font-weight:600;font-size:15.5px;
  padding:13px 24px;border-radius:999px;cursor:pointer;border:1px solid var(--accent);background:var(--accent);color:var(--on-ink);
  min-height:44px;transition:transform .15s,box-shadow .2s,background .2s}
.btn:hover{transform:translateY(-1px);box-shadow:0 12px 26px -14px var(--accent)}
.btn:active{transform:none}
.btn:disabled{opacity:.6;cursor:progress;transform:none;box-shadow:none}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line-2)}
.btn-ghost:hover{background:var(--card);border-color:var(--ink);box-shadow:none}
.btn-coral{background:var(--brass);border-color:var(--brass);color:#fff}
.btn-coral:hover{box-shadow:0 12px 26px -14px var(--brass)}

/* HERO */
.hero{max-width:var(--maxw);margin:0 auto;padding:clamp(40px,7vw,84px) clamp(16px,4vw,44px)}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(28px,5vw,64px);align-items:center}
.eyebrow{display:inline-flex;align-items:center;gap:9px;font-size:12px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--accent);background:var(--accent-soft);border:1px solid #E7E5E4;padding:7px 14px;border-radius:999px}
.eyebrow .dot{width:7px;height:7px;border-radius:50%;background:var(--accent-2);box-shadow:0 0 0 0 rgba(10,10,10,.4);animation:pulse 2.4s infinite}
@keyframes pulse{70%{box-shadow:0 0 0 8px rgba(10,10,10,0)}100%{box-shadow:0 0 0 0 rgba(10,10,10,0)}}
h1{font-size:clamp(40px,6.5vw,74px);margin:22px 0 0}
.lead{max-width:520px;margin:22px 0 0;font-size:18px;color:var(--ink-2)}
.lead strong{color:var(--ink);font-weight:600}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap;margin:30px 0 0}
.trust-strip{list-style:none;display:flex;flex-wrap:wrap;gap:26px;margin:38px 0 0;padding-top:26px;border-top:1px solid var(--line)}
.trust-strip li{display:flex;flex-direction:column;gap:3px}
.trust-strip b{font-family:"Fraunces",serif;font-size:26px;font-weight:500;font-variant-numeric:tabular-nums}
.trust-strip b em{color:var(--accent);font-style:normal}
.trust-strip b small{font-size:11px;font-family:"JetBrains Mono",monospace;font-weight:400}
.trust-strip span{font-family:"JetBrains Mono",monospace;font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}

/* INSTRUMENTO (firma) — panel tinta sobre claro */
.instrument{background:var(--ink);color:#EDEBE0;border-radius:18px;padding:20px;box-shadow:0 30px 60px -30px rgba(21,22,15,.5);position:relative;overflow:hidden}
.instrument::before{content:"";position:absolute;inset:0;border-radius:18px;border:1px solid rgba(255,255,255,.06);pointer-events:none}
.inst-head{display:flex;justify-content:space-between;align-items:center;font-size:11px;letter-spacing:.08em;color:#9a9c8c}
.inst-head .live{color:var(--accent-2);display:flex;align-items:center;gap:6px}
.inst-head .live::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent-2);animation:pulse 2s infinite}
.chrom{display:block;width:100%;height:240px;margin:8px 0}
.inst-foot{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;border-top:1px solid rgba(255,255,255,.08);padding-top:14px}
.inst-foot>div{display:flex;flex-direction:column;gap:3px}
.inst-foot span{font-size:9.5px;letter-spacing:.12em;color:#8a8c7c}
.inst-foot b{font-family:"Fraunces",serif;font-size:19px;font-weight:500}
.inst-foot b.hi{color:var(--accent-2)}

/* secciones */
section{scroll-margin-top:80px}
.section-h{font-size:clamp(28px,4vw,44px)}
.section-h.light{color:var(--card)}
.section-sub{color:var(--ink-2);font-size:17px;margin-top:10px;max-width:560px}
.section-sub.light{color:rgba(246,244,238,.72)}
.objetivos,.products,.packs,.risk,.faq{max-width:var(--maxw);margin:0 auto;padding:clamp(48px,7vw,84px) clamp(16px,4vw,44px)}

/* OBJETIVOS */
.obj-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:34px}
.obj{position:relative;background:var(--card);border:1px solid var(--line);border-radius:14px;padding:22px 18px 20px;
  display:flex;flex-direction:column;gap:6px;transition:transform .25s,border-color .25s,box-shadow .25s}
.obj::after{content:attr(data-n);position:absolute;top:14px;right:16px;font-family:"JetBrains Mono",monospace;font-size:11px;color:var(--line-2)}
.obj:hover{transform:translateY(-4px);border-color:var(--accent);box-shadow:var(--sh)}
.obj-ico{display:grid;place-items:center;width:40px;height:40px;border-radius:10px;background:var(--surface);color:var(--ink);margin-bottom:8px;transition:background .25s,color .25s}
.obj-ico .ic{width:22px;height:22px}
.obj:hover .obj-ico{background:var(--ink);color:var(--paper)}
.obj b{font-family:"Fraunces",serif;font-size:20px;font-weight:500}
.obj span{font-size:13.5px;color:var(--muted)}

/* PRODUCTOS */
.section-head{display:flex;justify-content:space-between;align-items:flex-end;flex-wrap:wrap;gap:16px}
.filters{display:flex;gap:8px;flex-wrap:wrap}
.chip{font-family:"Instrument Sans",sans-serif;font-size:13px;font-weight:500;letter-spacing:.02em;color:var(--ink-2);background:var(--card);border:1px solid var(--line);
  padding:9px 15px;border-radius:999px;cursor:pointer;transition:.2s}
.chip:hover{border-color:var(--ink)}
.chip.on{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:28px}
.card{background:var(--card);border:1px solid var(--line);border-radius:16px;overflow:hidden;display:flex;flex-direction:column;
  transition:transform .25s,border-color .25s,box-shadow .25s}
.card:hover{transform:translateY(-4px);border-color:var(--line-2);box-shadow:var(--sh)}
.card-top{position:relative;display:flex;align-items:center;gap:8px;padding:14px 16px;background:var(--surface);border-bottom:1px solid var(--line)}
.purity{font-size:11px;color:var(--accent);background:var(--accent-soft);border:1px solid #E7E5E4;padding:3px 9px;border-radius:999px}
.obj-tag{font-size:11px;color:var(--ink-2);background:var(--paper);border:1px solid var(--line);padding:3px 9px;border-radius:999px}
.mini-vial{width:12px;height:26px;margin-left:auto;border-radius:3px 3px 5px 5px;background:linear-gradient(180deg,var(--accent-2),var(--accent));opacity:.85}
.spark{position:absolute;bottom:0;left:0;width:100%;height:20px;opacity:.35}
.spark path{stroke:var(--accent)!important}
.card-body{padding:16px;display:flex;flex-direction:column;gap:9px;flex:1}
.card-body h3{font-size:22px}
.dose{display:flex;gap:14px;font-size:12px;color:var(--muted)}
.blurb{font-size:14px;color:var(--ink-2);flex:1}
.coa-link{align-self:flex-start;display:inline-flex;align-items:center;gap:6px;font-size:12.5px;font-weight:500;color:var(--accent);border:1px solid var(--line);background:var(--accent-soft);
  border-radius:999px;padding:6px 12px;transition:.2s}
.coa-link:hover{background:var(--accent);color:var(--card)}
.card-foot{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:6px;padding-top:12px;border-top:1px solid var(--line)}
.price{font-family:"Fraunces",serif;font-size:22px;font-weight:500;font-variant-numeric:tabular-nums}
.price small{font-family:"JetBrains Mono",monospace;font-size:10px;color:var(--muted)}
.add{font-family:"Instrument Sans",sans-serif;font-weight:600;font-size:14px;color:var(--card);background:var(--ink);border:0;
  border-radius:999px;padding:10px 16px;min-height:40px;cursor:pointer;transition:.2s;flex:none}
.add:hover{background:var(--ink-2)}

/* PACKS */
.pack-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:30px}
.pack{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:22px;display:flex;flex-direction:column;gap:14px;position:relative}
.pack.feat{border-color:var(--brass);box-shadow:0 20px 44px -26px var(--brass)}
.pack.feat::before{content:"Más elegido";position:absolute;top:-11px;left:22px;font-family:"JetBrains Mono",monospace;font-size:10px;letter-spacing:.1em;
  text-transform:uppercase;background:var(--brass);color:var(--on-ink);padding:4px 10px;border-radius:999px}
.pack-name{font-size:22px}
.pack ul{list-style:none;display:flex;flex-direction:column;gap:7px}
.pack li{font-size:14px;color:var(--ink-2);padding-left:18px;position:relative}
.pack li::before{content:"—";position:absolute;left:0;color:var(--accent)}
.pack-price{display:flex;align-items:baseline;gap:10px;margin-top:auto;font-variant-numeric:tabular-nums}
.pack-price .now{font-family:"Fraunces",serif;font-size:26px}
.pack-price .was{color:var(--muted);text-decoration:line-through;font-size:15px}

/* CALIDAD (banda invertida tinta) — cuatro columnas regladas, no cuatro cajas */
.quality{background:var(--ink);color:#EDEBE0;padding:clamp(52px,8vw,96px) clamp(16px,4vw,44px)}
.q-head{max-width:var(--maxw);margin:0 auto}
.q-grid{max-width:var(--maxw);margin:48px auto 0;display:grid;grid-template-columns:repeat(4,1fr);gap:0 32px;counter-reset:q}
.q-card{position:relative;border-top:1px solid rgba(255,255,255,.22);padding:22px 0 8px}
.q-card::before{counter-increment:q;content:counter(q,decimal-leading-zero);position:absolute;top:-1px;right:0;padding-top:10px;font-family:"JetBrains Mono",monospace;font-size:11px;letter-spacing:.12em;color:rgba(237,235,224,.5)}
.q-ic{color:#EDEBE0;margin-bottom:22px;height:26px}
.q-ic .ic{width:26px;height:26px;stroke-width:1.4}
.q-card h3{font-size:21px;color:var(--card);margin-bottom:8px}
.q-card p{font-size:14.5px;color:rgba(237,235,224,.72)}

/* RIESGOS */
.risk-cols{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:32px}
.risk-col{border-radius:16px;padding:24px;border:1px solid var(--line)}
.risk-col.bad{background:var(--card)}
.risk-col.good{background:var(--accent-soft);border-color:#E7E5E4}
.rc-tag{display:inline-block;font-size:10.5px;letter-spacing:.12em;text-transform:uppercase;padding:4px 10px;border-radius:999px;margin-bottom:16px;
  background:var(--paper);color:var(--danger);border:1px solid var(--line-2)}
.rc-tag.ok{background:var(--accent);color:var(--card);border-color:var(--accent)}
.risk-col ul{list-style:none;display:flex;flex-direction:column;gap:10px}
.risk-col li{font-size:14.5px;color:var(--ink-2);padding-left:24px;position:relative}
.risk-col.bad li::before{content:"✕";position:absolute;left:0;color:var(--danger)}
.risk-col.good li::before{content:"✓";position:absolute;left:0;color:var(--accent)}

/* ASESORÍA (banda latón suave) */
.advisor{background:var(--accent);color:#F6F4EE}
.adv-inner{max-width:var(--maxw);margin:0 auto;padding:clamp(44px,6vw,72px) clamp(16px,4vw,44px);
  display:flex;align-items:center;justify-content:space-between;gap:30px;flex-wrap:wrap}
.adv-inner .section-h.light{color:#F6F4EE}
.adv-inner .section-sub.light{color:rgba(246,244,238,.8)}
.adv-inner .btn-coral{background:#F6F4EE;color:var(--accent);border-color:#F6F4EE}
.adv-inner .btn-coral:hover{background:#fff}

/* FAQ */
.faq-list{max-width:820px;margin:34px auto 0}
.qa{border-bottom:1px solid var(--line)}
.qa summary{list-style:none;cursor:pointer;padding:22px 0;font-family:"Fraunces",serif;font-size:20px;
  display:flex;justify-content:space-between;gap:16px;align-items:center}
.qa summary::-webkit-details-marker{display:none}
.qa summary::after{content:"+";color:var(--accent);font-family:"Instrument Sans",sans-serif;font-size:24px;transition:transform .2s}
.qa[open] summary::after{transform:rotate(45deg)}
.qa .a{color:var(--ink-2);padding:0 0 22px;font-size:15.5px;max-width:680px}

/* FOOTER */
.footer{background:var(--surface);border-top:1px solid var(--line);padding:56px clamp(16px,4vw,44px) 34px}
.foot-grid{max-width:var(--maxw);margin:0 auto;display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:30px}
.foot-brand p{color:var(--muted);font-size:14px;margin-top:12px;max-width:280px}
.foot-grid h4{font-family:"JetBrains Mono",monospace;font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin-bottom:14px}
.foot-grid a{display:block;width:fit-content;color:var(--ink-2);font-size:14.5px;padding:11px 0;transition:.2s}
.foot-grid a:hover{color:var(--accent);text-decoration:underline;text-underline-offset:4px}
.disclaimer{max-width:var(--maxw);margin:36px auto 0;padding:18px 20px;background:var(--card);border:1px solid var(--line);border-radius:12px;
  font-size:12.5px;color:var(--muted);line-height:1.6}
.disclaimer strong{color:var(--ink-2)}
.foot-bottom{max-width:var(--maxw);margin:24px auto 0;padding-top:20px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--muted)}

/* reveal */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .7s cubic-bezier(.2,.7,.2,1),transform .7s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}

/* ===== comercio (carrito, checkout, chat, COA) — tema claro ===== */
.cart-btn{position:relative;background:var(--card);border:1px solid var(--line-2);color:var(--ink);flex:none;
  width:44px;height:44px;border-radius:12px;cursor:pointer;display:grid;place-items:center;transition:.2s}
.cart-btn .ic{width:22px;height:22px}
.cart-btn:hover{border-color:var(--accent)}
.cart-count{position:absolute;top:-7px;right:-7px;background:var(--brass);color:var(--on-ink);font-size:11px;font-weight:700;
  min-width:19px;height:19px;border-radius:999px;display:grid;place-items:center;padding:0 5px;font-family:"JetBrains Mono",monospace;border:2px solid var(--paper)}

.overlay{position:fixed;inset:0;z-index:100;background:rgba(21,22,15,.42);backdrop-filter:blur(3px)}
.cart{position:fixed;top:0;right:0;bottom:0;width:min(390px,92vw);z-index:110;background:var(--surface);border-left:1px solid var(--line);
  display:flex;flex-direction:column;box-shadow:-20px 0 60px -24px rgba(21,22,15,.4);animation:slideL .25s ease}
@keyframes slideL{from{transform:translateX(100%)}to{transform:none}}
.cart-head,.modal-head,.chat-head{display:flex;align-items:center;justify-content:space-between;padding:16px 18px;border-bottom:1px solid var(--line)}
.cart-head b,.modal-head b{font-family:"Fraunces",serif;font-size:18px;font-weight:500}
.cart-items{flex:1;overflow-y:auto;padding:12px 14px;display:flex;flex-direction:column;gap:10px}
.cart-empty{color:var(--muted);text-align:center;padding:40px 0}
.ci{display:grid;grid-template-columns:1fr auto auto;gap:10px;align-items:center;background:var(--card);border:1px solid var(--line);border-radius:12px;padding:12px 40px 12px 12px;position:relative}
.ci-info b{display:block;font-size:14.5px}.ci-info span{font-size:12px;color:var(--muted)}
.ci-qty{display:flex;align-items:center;gap:6px}
.ci-qty button{width:32px;height:32px;border-radius:8px;border:1px solid var(--line-2);background:var(--surface);color:var(--ink);cursor:pointer;font-size:16px;transition:.15s}
.ci-qty button:hover{border-color:var(--ink);background:var(--card)}
.ci-qty span{min-width:18px;text-align:center;font-family:"JetBrains Mono",monospace}
.ci-sub{font-weight:600;font-size:14px;font-family:"JetBrains Mono",monospace;font-variant-numeric:tabular-nums}
.ci-del{position:absolute;top:50%;right:4px;transform:translateY(-50%);width:32px;height:32px;display:grid;place-items:center;border-radius:8px;background:none;border:0;color:var(--muted);cursor:pointer;transition:.15s}
.ci-del .ic{width:14px;height:14px}
.ci-del:hover{color:var(--danger);background:var(--surface)}
.cart-foot{border-top:1px solid var(--line);padding:16px 18px;display:flex;flex-direction:column;gap:12px}
.cart-total{display:flex;justify-content:space-between;align-items:center}
.cart-total b{font-family:"Fraunces",serif;font-size:24px;font-weight:500;font-variant-numeric:tabular-nums}
.cart-note{font-size:11.5px;color:var(--muted);text-align:center;margin:0}

.modal{position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);z-index:110;width:min(460px,94vw);max-height:90vh;overflow-y:auto;
  background:var(--surface);border:1px solid var(--line);border-radius:18px;box-shadow:0 30px 80px -30px rgba(21,22,15,.5);animation:pop .25s ease}
@keyframes pop{from{opacity:0;transform:translate(-50%,-46%)}to{opacity:1;transform:translate(-50%,-50%)}}
.co-form{padding:18px;display:flex;flex-direction:column;gap:12px}
.co-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.co-form label{display:flex;flex-direction:column;gap:6px;font-size:13px;color:var(--ink-2)}
.co-form input,.co-form textarea{font-family:"Instrument Sans",sans-serif;font-size:15px;color:var(--ink);background:var(--card);border:1px solid var(--line-2);border-radius:10px;padding:11px 13px;resize:vertical}
.co-form input:focus-visible,.co-form textarea:focus-visible{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(10,10,10,.14)}
.co-form input::placeholder,.co-form textarea::placeholder,.chat-input input::placeholder{color:var(--muted)}
.co-summary{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:12px 14px;font-size:14px}
.co-li{display:flex;justify-content:space-between;padding:4px 0;color:var(--ink-2)}
.co-li.co-tot{border-top:1px solid var(--line);margin-top:6px;padding-top:8px;font-size:16px}
.co-li.co-tot b{color:var(--accent)}

.chat-fab{position:fixed;bottom:22px;right:22px;z-index:90;width:58px;height:58px;border-radius:50%;border:0;cursor:pointer;display:grid;place-items:center;
  background:var(--accent);color:var(--on-ink);box-shadow:0 14px 34px -10px rgba(10,10,10,.55);transition:transform .15s}
.chat-fab .ic{width:26px;height:26px}
.chat-fab:hover{transform:scale(1.06)}
.chat-panel{position:fixed;bottom:90px;right:22px;z-index:95;width:min(370px,92vw);height:min(520px,72vh);
  background:var(--surface);border:1px solid var(--line);border-radius:18px;display:flex;flex-direction:column;overflow:hidden;box-shadow:0 30px 80px -30px rgba(21,22,15,.5)}
.chat-av{width:38px;height:38px;border-radius:50%;display:grid;place-items:center;font-family:"Fraunces",serif;font-weight:600;font-size:14px;color:var(--on-ink);background:var(--accent)}
.chat-head{gap:10px}.chat-head b{display:block;font-size:14px;font-family:"Instrument Sans",sans-serif;font-weight:600}.chat-on{font-size:11.5px;color:var(--accent)}
.chat-head>div{flex:1}
.chat-body{flex:1;overflow-y:auto;padding:14px;display:flex;flex-direction:column;gap:9px}
.bubble{max-width:85%;padding:10px 13px;border-radius:14px;font-size:14px;line-height:1.5;white-space:pre-wrap}
.bubble.them{align-self:flex-start;background:var(--card);border:1px solid var(--line);border-bottom-left-radius:5px}
.bubble.me{align-self:flex-end;background:var(--accent);color:#F6F4EE;border-bottom-right-radius:5px;font-weight:500}
.bubble.typing{opacity:.6;letter-spacing:3px}
.chat-link{display:inline-block;margin-top:10px;font-weight:600;font-size:13.5px;color:var(--ink);border:1px solid var(--line-2);background:var(--paper);border-radius:999px;padding:8px 14px;transition:.2s}
.chat-link:hover{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.chat-input{display:flex;gap:8px;padding:12px;border-top:1px solid var(--line)}
.chat-input input{flex:1;font-family:"Instrument Sans",sans-serif;font-size:14px;color:var(--ink);background:var(--card);border:1px solid var(--line-2);border-radius:999px;padding:11px 15px}
.chat-input input:focus-visible{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(10,10,10,.14)}
.chat-input button{width:44px;height:44px;flex:none;border:0;border-radius:50%;background:var(--accent);color:var(--on-ink);cursor:pointer;display:grid;place-items:center}
.chat-input button .ic{width:18px;height:18px}

[hidden]{display:none !important}
.cart[hidden],.modal[hidden],.chat-panel[hidden],.overlay[hidden],.cart-count[hidden]{display:none !important}

/* responsive */
@media(max-width:900px){
  .nav{gap:12px}
  .nav-links{display:none}
  .nav.open .nav-links{display:flex;position:absolute;top:100%;left:0;right:0;flex-direction:column;gap:0;background:var(--paper);padding:8px 24px 18px;border-bottom:1px solid var(--line);box-shadow:0 24px 40px -30px rgba(10,10,10,.4)}
  .nav.open .nav-links a{padding:14px 0;font-size:17px;border-bottom:1px solid var(--line)}
  .nav.open .nav-links a::after{display:none}
  .burger{display:grid;margin-left:0}
  .hero-grid{grid-template-columns:1fr}
  .obj-grid{grid-template-columns:1fr 1fr}
  .q-grid{grid-template-columns:1fr 1fr;gap:8px 24px}
  .grid,.pack-grid{grid-template-columns:1fr 1fr}
  .risk-cols{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr 1fr}
  .section-head{align-items:flex-start;flex-direction:column}
}
@media(max-width:560px){
  .grid,.pack-grid,.obj-grid,.q-grid{grid-template-columns:1fr}
  .q-grid{gap:0}
  .co-row{grid-template-columns:1fr}
  h1{font-size:clamp(36px,11vw,52px)}
  .btn-sm{padding:11px 14px}
  .hero-cta .btn{width:100%;justify-content:center}
  .trust-strip{display:grid;grid-template-columns:1fr 1fr;gap:18px 16px}
  .obj{flex-direction:row;align-items:center;flex-wrap:wrap;gap:4px 14px;padding:16px}
  .obj-ico{margin:0}
  .obj b{flex:1}
  .obj span:last-child{flex-basis:100%;padding-left:54px}
  .card-foot{flex-wrap:wrap}
  .pack.feat{margin-top:8px}
  .foot-grid{grid-template-columns:1fr 1fr}
  .foot-brand{grid-column:1/-1}
  .cart{width:100vw;border-left:0}
  .chat-panel{right:0;bottom:0;width:100vw;height:min(600px,85vh);border-radius:18px 18px 0 0}
  .chat-fab[aria-expanded="true"]{display:none}
}
/* táctil: objetivos de toque ≥44px sin engordar el escritorio */
@media(pointer:coarse){
  .chip,.coa-link,.add,.ci-qty button,.ci-del,.icon-btn{min-height:44px}
  .ci-qty button,.ci-del{min-width:44px}
  .chip{padding:11px 16px}
  .coa-link{padding:10px 14px}
}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none;transition:none}
  .eyebrow .dot,.inst-head .live::before{animation:none}
  .view,.cart,.modal{animation:none}
  .obj,.card,.post,.btn,.chat-fab{transition:none}
  .obj:hover,.card:hover,.post:hover,.btn:hover,.chat-fab:hover{transform:none}
}
.was-inline{font-family:"JetBrains Mono",monospace;font-size:12px;color:var(--muted);text-decoration:line-through;margin-left:6px}
.pack-desc{font-size:13.5px;color:var(--ink-2);margin-top:-4px}
/* SHOWPIECE — péptido 3D interactivo (firma del hero) */
.showpiece{position:relative;border-radius:20px;overflow:hidden;min-height:440px;
  background:radial-gradient(120% 110% at 70% 20%,#1e1e1e 0%,#141414 45%,#0a0a0a 100%);
  box-shadow:0 40px 90px -40px rgba(8,12,10,.7);border:1px solid rgba(255,255,255,.12)}
.mol{position:absolute;inset:0;width:100%;height:100%;display:block;cursor:grab;touch-action:pan-y}
.mol:active{cursor:grabbing}
.sp-tag{position:absolute;top:16px;left:18px;font-family:"JetBrains Mono",monospace;font-size:11px;letter-spacing:.06em;
  color:#d4d4d8;display:flex;gap:8px;align-items:center}
.sp-tag .live{color:#e5e5e5;font-weight:500}
.sp-foot{position:absolute;left:0;right:0;bottom:0;display:grid;grid-template-columns:repeat(3,1fr);gap:1px;
  background:rgba(255,255,255,.10);border-top:1px solid rgba(255,255,255,.14)}
.sp-foot>div{background:rgba(8,12,10,.72);backdrop-filter:blur(6px);padding:13px 16px;display:flex;flex-direction:column;gap:3px}
.sp-foot span{font-family:"JetBrains Mono",monospace;font-size:9.5px;letter-spacing:.12em;color:#a1a1aa}
.sp-foot b{font-family:"Fraunces",serif;font-size:18px;font-weight:500;color:#f4f4f5;font-variant-numeric:tabular-nums}
.sp-foot b.hi{color:#ffffff}
@media(max-width:900px){.showpiece{min-height:360px}}
.lab-tag{align-self:flex-start;display:inline-flex;align-items:center;gap:6px;font-family:"JetBrains Mono",monospace;font-size:10.5px;letter-spacing:.04em;color:var(--muted);
  background:var(--surface);border:1px solid var(--line);border-radius:999px;padding:4px 10px}
.lab-tag .ic{width:13px;height:13px}

/* páginas internas (Productos/Nosotros/Blog) */
.page-head{border-bottom:1px solid var(--line);background:var(--surface)}
.page-head-in{max-width:var(--maxw);margin:0 auto;padding:clamp(40px,6vw,72px) clamp(16px,4vw,44px)}
.page-head h1{font-size:clamp(34px,5.5vw,60px);margin:16px 0 0}
.page-head .lead{margin-top:16px}
.prose{max-width:760px;margin:0 auto;padding:clamp(40px,6vw,72px) clamp(16px,4vw,44px)}
.prose h2{font-size:clamp(24px,3.4vw,34px);margin:34px 0 10px}
.prose p{color:var(--ink-2);margin:0 0 14px}
.prose .lede{font-size:20px;color:var(--ink)}
.values{display:grid;grid-template-columns:repeat(3,1fr);gap:0 28px;margin:26px 0 36px}
.value{border-top:1px solid var(--ink);padding:18px 0 8px}
.value .vic{color:var(--ink);margin-bottom:16px;height:24px}
.value .vic .ic{width:24px;height:24px;stroke-width:1.4}
.value h3{font-family:"Fraunces",serif;font-size:20px;margin-bottom:6px}
.value p{font-size:14.5px;margin:0}
.blog-grid{max-width:var(--maxw);margin:0 auto;padding:clamp(40px,6vw,72px) clamp(16px,4vw,44px);
  display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.post{background:var(--card);border:1px solid var(--line);border-radius:16px;overflow:hidden;display:flex;flex-direction:column;transition:transform .25s,box-shadow .25s}
.post:hover{transform:translateY(-4px);box-shadow:var(--sh)}
/* portada tipográfica: papel milimetrado de laboratorio + categoría en display */
.post-cover{aspect-ratio:16/9;background:linear-gradient(135deg,var(--accent),#333333);position:relative;overflow:hidden}
.post-cover::before{content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.07) 1px,transparent 1px);
  background-size:22px 22px;background-position:-1px -1px;mask-image:linear-gradient(180deg,#000 30%,transparent);-webkit-mask-image:linear-gradient(180deg,#000 30%,transparent)}
.post-cover::after{content:"AEVEXIS · BLOG";position:absolute;top:14px;left:16px;font-family:"JetBrains Mono",monospace;font-size:10px;letter-spacing:.14em;color:rgba(255,255,255,.55)}
.post-cover span{position:absolute;bottom:12px;left:16px;right:16px;font-family:"Fraunces",serif;font-style:italic;font-weight:400;font-size:clamp(30px,3vw,40px);line-height:1;letter-spacing:-.02em;color:#F6F4EE}
.post-body{padding:18px;display:flex;flex-direction:column;gap:8px;flex:1}
.post-body h3{font-family:"Fraunces",serif;font-size:20px;line-height:1.15}
.post-body p{font-size:14px;color:var(--ink-2);flex:1}
.post-meta{font-family:"JetBrains Mono",monospace;font-size:11px;color:var(--muted)}
@media(max-width:820px){.values,.blog-grid{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.values,.blog-grid{grid-template-columns:1fr}.values{gap:0}}
.view[hidden]{display:none !important}
.view{animation:viewin .3s ease}
@keyframes viewin{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}