/* Layout: ficha técnica de marca — hero partido con el vial en estudio, secciones de información clara, calculadora de reconstitución como herramienta central */
:root{
  --paper:#F7F8F6; --surface:#FFFFFF; --studio:#E9ECEE; --ink:#0C1A2B; --muted:#5B6878; --line:#DDE2E6;
  --blue:#1373DE; --soft:#EAF2FC; --band:#0C1A2B; --band-fg:#F7F8F6; --band-muted:#9AA7B6; --warn:#B4541F;
  --c-meta:#1197CF; --c-rt30:#DE363B; --c-skin:#2F2B7F; --c-vit:#BD151C; --c-rec:#5A257F;
  --body:"Archivo","Helvetica Neue",Arial,sans-serif; --mono:"JetBrains Mono",ui-monospace,Menlo,monospace;
}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]){
  --paper:#08121E; --surface:#0F1D2E; --studio:#E9ECEE; --ink:#EEF1EE; --muted:#93A0AF; --line:#1E2E42;
  --blue:#4A95EA; --soft:#10243C; --band:#030A12; --band-fg:#EEF1EE; --band-muted:#8593A3; --warn:#E58A55; --c-skin:#6F69D6; --c-rec:#A165D1; --c-vit:#E2454B; color-scheme:dark}}
:root[data-theme="dark"]{
  --paper:#08121E; --surface:#0F1D2E; --studio:#E9ECEE; --ink:#EEF1EE; --muted:#93A0AF; --line:#1E2E42;
  --blue:#4A95EA; --soft:#10243C; --band:#030A12; --band-fg:#EEF1EE; --band-muted:#8593A3; --warn:#E58A55; --c-skin:#6F69D6; --c-rec:#A165D1; --c-vit:#E2454B; color-scheme:dark}
*{box-sizing:border-box}
body{background:var(--paper);color:var(--ink);font-family:var(--body);font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased}
.wrap{max-width:1160px;margin:0 auto;padding-inline:clamp(16px,4vw,40px)}
h1,h2,h3{text-wrap:balance;margin:0;letter-spacing:-.02em}
p{margin:0}
img{display:block;max-width:100%;height:auto}
.eyebrow{font-family:var(--mono);font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
.num{font-variant-numeric:tabular-nums}
:focus-visible{outline:2px solid var(--blue);outline-offset:3px}

nav{position:sticky;top:env(safe-area-inset-top,0px);z-index:5;background:color-mix(in srgb,var(--paper) 88%,transparent);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
nav .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-block:14px}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink)}
.logo b{font-weight:800;font-size:20px;letter-spacing:.06em;display:block;line-height:1.1}
.logo small{display:block;font-family:var(--mono);font-size:9px;letter-spacing:.2em;color:var(--muted)}
.navlinks{display:flex;gap:22px;font-size:14px;font-weight:600}
.navlinks a{text-decoration:none;color:var(--muted)}
.navlinks a:hover{color:var(--ink)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--ink);color:var(--paper);border:0;border-radius:4px;padding:13px 20px;font:600 15px var(--body);text-decoration:none;cursor:pointer}
.btn:hover{background:var(--blue);color:#fff}
.btn.ghost{background:transparent;color:var(--ink);border:1px solid var(--ink)}
.btn.wa{background:#1FAF5A;color:#fff}.btn.wa:hover{background:#178a47}
@media (max-width:860px){.navlinks{display:none}}

.hero{position:relative;overflow:hidden;background:#0D1727;color:#F7F8F6}
.hero-bg{position:absolute;top:0;right:0;height:100%;width:min(60%,980px);object-fit:cover;object-position:78% 55%;max-width:none;-webkit-mask-image:linear-gradient(90deg,transparent 0%,#000 18%);mask-image:linear-gradient(90deg,transparent 0%,#000 18%)}
.hero-inner{position:relative;z-index:2;padding-block:clamp(56px,8vw,110px);width:100%}
.hero .eyebrow{color:#9AA7B6}
.hero h1{font-size:clamp(44px,6.8vw,88px);font-weight:800;line-height:.95;font-stretch:84%;margin-top:14px;max-width:9ch}
.hero h1 span{color:#3FB3E6}
.hero .lead{margin-top:22px;max-width:38ch;font-size:18px;color:#C9D2DC}
.hero .ctas{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero .lines{display:flex;flex-wrap:wrap;gap:8px 18px;margin-top:34px;font-family:var(--mono);font-size:11.5px;letter-spacing:.12em;color:#C9D2DC}
.hero .lines span{display:inline-flex;align-items:center;gap:7px}
.hero .lines i{width:8px;height:8px;border-radius:50%}
.btn.light{background:#F7F8F6;color:#0C1A2B}.btn.light:hover{background:#1197CF;color:#fff}
.btn.ghost-l{background:transparent;color:#F7F8F6;border:1px solid #F7F8F6}
.stripe{display:grid;grid-template-columns:repeat(4,1fr);height:6px}
.stripe i:nth-child(1){background:#1197CF}.stripe i:nth-child(2){background:#2F2B7F}.stripe i:nth-child(3){background:#BD151C}.stripe i:nth-child(4){background:#5A257F}
@media (max-width:860px){.hero-bg{position:relative;width:100%;height:auto;aspect-ratio:1600/1031;-webkit-mask-image:linear-gradient(0deg,transparent 0%,#000 25%);mask-image:linear-gradient(0deg,transparent 0%,#000 25%)}.hero-inner{padding-top:0;margin-top:-40px}}
.pillars{border-block:1px solid var(--line)}
.pillars .wrap{display:grid;grid-template-columns:repeat(5,1fr)}
.pillar{padding:20px 18px;border-left:1px solid var(--line);display:flex;gap:12px;align-items:flex-start}
.pillar:first-child{border-left:0;padding-left:0}
.pillar svg{flex:none;width:26px;height:26px}
.pillar b{display:block;font-size:14.5px}
.pillar span{font-size:12.5px;color:var(--muted);line-height:1.4;display:block}
@media (max-width:980px){.pillars .wrap{grid-template-columns:1fr 1fr}.pillar{border-left:0;padding-left:0;border-top:1px solid var(--line)}.pillar:nth-child(-n+2){border-top:0}}
@media (max-width:460px){.pillars .wrap{grid-template-columns:1fr}.pillar:nth-child(2){border-top:1px solid var(--line)}}

section{padding-block:clamp(56px,8vw,100px)}
.sec-head{display:flex;justify-content:space-between;align-items:end;gap:24px;flex-wrap:wrap;margin-bottom:36px}
.sec-head h2{font-size:clamp(32px,4.4vw,52px);font-weight:800;font-stretch:88%;line-height:1;margin-top:10px}
.sec-head p{max-width:44ch;color:var(--muted)}

/* products */
.prod-tabs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:20px}
.ptab{display:inline-flex;align-items:center;gap:8px;border:1px solid var(--line);border-radius:999px;padding:8px 14px;font:600 14px var(--body);background:transparent;color:var(--ink);cursor:pointer}
.ptab i{width:10px;height:10px;border-radius:50%;background:var(--c)}
.ptab[aria-selected="true"]{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.prod{display:grid;grid-template-columns:.75fr 1.25fr;gap:0;background:var(--surface);border:1px solid var(--line);border-radius:10px;overflow:hidden}
.prod .ph{background:var(--studio);min-height:100%}
.prod .ph{background:#E8E8E8}
.prod .ph{background:#E3E4E6;overflow:hidden}
.prod .ph img{width:100%;height:100%;object-fit:cover;aspect-ratio:830/1500}
@media (max-width:760px){.prod .ph img{height:auto;aspect-ratio:650/750}}
.prod .info{padding:clamp(20px,4vw,40px);display:flex;flex-direction:column;gap:18px;min-width:0}
.prod h3{font-size:clamp(30px,4vw,44px);font-weight:800;font-stretch:88%;line-height:1}
.prod .what{font-size:16.5px;color:var(--muted);max-width:52ch}
.specs{display:grid;grid-template-columns:auto 1fr;border-top:1px solid var(--line)}
.specs dt,.specs dd{margin:0;padding:11px 0;border-bottom:1px solid var(--line);font-size:14.5px}
.specs dt{color:var(--muted);padding-right:24px;font-family:var(--mono);font-size:12px;letter-spacing:.06em;text-transform:uppercase;padding-top:13px}
.specs dd{font-weight:600}
.prod .ctas{display:flex;gap:10px;flex-wrap:wrap}
@media (max-width:760px){.prod{grid-template-columns:1fr}.prod .ph img{aspect-ratio:auto;max-height:420px;object-fit:contain}}

/* para ti */
.fit{border-top:1px solid color-mix(in srgb,var(--band-fg) 18%,transparent)}
.fit button{all:unset;box-sizing:border-box;width:100%;display:flex;justify-content:space-between;align-items:center;gap:16px;padding:22px 4px;border-bottom:1px solid color-mix(in srgb,var(--band-fg) 18%,transparent);cursor:pointer;font-size:clamp(18px,2.4vw,26px);font-weight:600}
.fit button:hover{color:#fff}.fit button:focus-visible{outline:2px solid var(--blue)}
.fit b{display:inline-flex;align-items:center;gap:10px;font-size:15px;font-weight:600;white-space:nowrap;color:var(--band-fg)}
.fit b i{width:10px;height:10px;border-radius:50%;background:var(--c)}
.fit b::after{content:"→";font-family:var(--mono);color:var(--band-muted)}
.benef{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px}
.benef li{position:relative;padding-left:26px;font-size:15px;line-height:1.5}
.benef li::before{content:"✓";position:absolute;left:0;top:0;color:var(--c);font-weight:800}
.backing{font-size:13px;color:var(--muted);background:var(--paper);border-radius:6px;padding:10px 12px}
.prod .line-tag{color:var(--c);font-family:var(--mono);font-size:12px;letter-spacing:.14em;text-transform:uppercase;font-weight:600}
.prod{border-left:4px solid var(--c)}
/* kit */
.kit{display:grid;grid-template-columns:1.1fr 1fr;gap:clamp(24px,5vw,56px);align-items:center}
.kit .ph{background:var(--studio);border-radius:10px;overflow:hidden}
.kit ul{list-style:none;margin:0;padding:0;border-top:1px solid var(--line)}
.kit li{display:grid;grid-template-columns:40px 1fr;gap:12px;padding:16px 0;border-bottom:1px solid var(--line)}
.kit li .k{font-family:var(--mono);font-size:12px;color:var(--blue);padding-top:3px}
.kit li b{display:block;font-size:16px}
.kit li span{font-size:14px;color:var(--muted)}
@media (max-width:860px){.kit{grid-template-columns:1fr}}

/* guide + calculator */
.guide{display:grid;grid-template-columns:1fr 1.1fr;gap:24px;align-items:start}
.steps{list-style:none;margin:0;padding:0;counter-reset:s;display:flex;flex-direction:column}
.steps li{counter-increment:s;display:grid;grid-template-columns:44px 1fr;gap:12px;padding:16px 0;border-top:1px solid color-mix(in srgb,var(--band-fg) 16%,transparent)}
.steps li::before{content:counter(s,decimal-leading-zero);font-family:var(--mono);font-size:13px;color:var(--blue);padding-top:2px}
.steps b{display:block}
.steps span{font-size:14px;color:var(--band-muted)}
.band{background:var(--band);color:var(--band-fg)}
.band .eyebrow,.band .sec-head p{color:var(--band-muted)}
.calc{background:var(--surface);color:var(--ink);border-radius:10px;padding:clamp(20px,3vw,28px);display:flex;flex-direction:column;gap:18px;min-width:0}
.calc .row{display:grid;grid-template-columns:1fr 1fr 1fr;gap:12px}
.field{display:flex;flex-direction:column;gap:6px;min-width:0}
.field label{font-family:var(--mono);font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.field select,.field input{width:100%;height:44px;border:1px solid var(--line);border-radius:4px;background:var(--paper);color:var(--ink);font:600 16px var(--body);padding:0 10px;font-variant-numeric:tabular-nums}
@media (max-width:520px){.calc .row{grid-template-columns:1fr}}
.out{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.out div{background:var(--soft);border-radius:6px;padding:14px}
.out span{font-family:var(--mono);font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);display:block}
.out b{font-size:30px;font-weight:800;letter-spacing:-.02em;font-stretch:88%}
.out b small{font-size:14px;font-weight:600;margin-left:4px;color:var(--muted);font-stretch:100%}
.syringe svg{width:100%;height:auto;display:block}
.note{font-size:12.5px;color:var(--muted)}
.warn{font-size:13px;color:var(--warn);font-weight:600}
@media (max-width:900px){.guide{grid-template-columns:1fr}}

/* authenticity */
.auth{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.auth div{border-top:2px solid var(--ink);padding-top:14px}
.auth b{display:block;font-size:17px;margin-top:10px}
.auth p{font-size:14px;color:var(--muted);margin-top:4px}
.auth svg{width:30px;height:30px}
@media (max-width:860px){.auth{grid-template-columns:1fr 1fr}}
@media (max-width:460px){.auth{grid-template-columns:1fr}}

/* faq */
.faq{max-width:820px}
details{border-top:1px solid var(--line)}
details:last-child{border-bottom:1px solid var(--line)}
summary{list-style:none;cursor:pointer;padding:18px 0;font-weight:600;font-size:17px;display:flex;justify-content:space-between;gap:16px}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";font-family:var(--mono);color:var(--blue);font-size:20px;line-height:1}
details[open] summary::after{content:"−"}
details p{padding-bottom:18px;color:var(--muted);max-width:66ch}

.contact{display:grid;grid-template-columns:1.2fr 1fr;gap:40px;align-items:center}
.contact h2{font-size:clamp(34px,5vw,58px);font-weight:800;font-stretch:84%;line-height:1}
.contact-box{border:1px solid color-mix(in srgb,var(--band-fg) 20%,transparent);border-radius:10px;padding:24px;display:flex;flex-direction:column;gap:14px}
.contact-box .phone{font-size:26px;font-weight:800;user-select:all}
.band .btn.ghost{color:var(--band-fg);border-color:var(--band-fg)}
@media (max-width:760px){.contact{grid-template-columns:1fr}}

.ruo{background:var(--blue);color:#fff;font-family:var(--mono);font-size:11.5px;letter-spacing:.12em;text-transform:uppercase;text-align:center;padding:10px 16px}
footer{padding-block:28px;font-size:13px;color:var(--muted)}
footer .wrap{display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px}
footer p{max-width:80ch}

.crumbs{font-size:13px;color:var(--muted);padding-block:18px 0}
.crumbs a{color:var(--muted);text-decoration:none}.crumbs a:hover{color:var(--ink)}
.p-hero{padding-block:clamp(20px,4vw,48px) clamp(40px,6vw,72px)}
.p-grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(24px,5vw,64px);align-items:center}
.p-img{background:#E3E4E6;border-radius:12px;overflow:hidden;border-bottom:5px solid var(--c)}
.p-img img{width:100%;height:auto;aspect-ratio:650/750;object-fit:cover}
.p-line{font-family:var(--mono);font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--c);font-weight:600}
.p-hero h1{font-size:clamp(40px,5.6vw,72px);font-weight:800;font-stretch:84%;line-height:.95;margin-top:12px}
.p-hero h1 small{display:block;font-size:.42em;font-stretch:100%;color:var(--muted);font-weight:600;letter-spacing:0;margin-top:10px}
.p-what{font-size:18px;color:var(--muted);margin-top:18px;max-width:46ch}
.p-quick{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px}
.p-quick span{font-size:13px;font-weight:600;border:1px solid var(--line);border-radius:999px;padding:7px 12px;background:var(--surface)}
.p-cta{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.p-note{font-size:13px;color:var(--muted);margin-top:14px}
@media (max-width:860px){.p-grid{grid-template-columns:1fr}.p-img{max-width:520px}}
.ben-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:clamp(24px,5vw,56px);align-items:start}
.benef{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:14px}
.benef li{position:relative;padding-left:30px;font-size:17px;line-height:1.5}
.benef li::before{content:"✓";position:absolute;left:0;top:0;color:var(--c);font-weight:800;font-size:18px}
.backing{font-size:13.5px;color:var(--muted);background:var(--surface);border:1px solid var(--line);border-radius:8px;padding:12px 14px;margin-top:22px}
.specs{display:grid;grid-template-columns:auto 1fr;border-top:1px solid var(--line);background:var(--surface);border-radius:10px;padding:6px 22px}
.specs dt,.specs dd{margin:0;padding:12px 0;border-bottom:1px solid var(--line);font-size:14.5px}
.specs dt{color:var(--muted);padding-right:24px;font-family:var(--mono);font-size:12px;letter-spacing:.06em;text-transform:uppercase;padding-top:14px}
.specs dd{font-weight:600}
.specs dt:nth-last-of-type(1),.specs dd:last-of-type{border-bottom:0}
@media (max-width:860px){.ben-grid{grid-template-columns:1fr}}
.kit2{display:grid;grid-template-columns:.8fr 1.2fr;gap:clamp(24px,5vw,56px);align-items:center}
.kit2 .ph{background:#E3E4E6;border-radius:10px;overflow:hidden}
.kit2 ul{list-style:none;margin:0;padding:0;border-top:1px solid var(--line)}
.kit2 li{padding:14px 0;border-bottom:1px solid var(--line)}
.kit2 li b{display:block}.kit2 li span{font-size:14px;color:var(--muted)}
@media (max-width:860px){.kit2{grid-template-columns:1fr}.kit2 .ph{max-width:440px}}
.others{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.ocard{display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);border-radius:10px;overflow:hidden;text-decoration:none;color:var(--ink);border-bottom:4px solid var(--c)}
.ocard img{width:100%;height:auto;aspect-ratio:650/750;object-fit:cover;background:#E3E4E6}
.ocard div{padding:14px}
.ocard span{font-family:var(--mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--c)}
.ocard b{display:block;font-size:16px;margin-top:4px}
.ocard:hover{border-color:var(--c)}
@media (max-width:860px){.others{grid-template-columns:1fr 1fr}}
.wa-float{position:fixed;right:16px;bottom:calc(16px + env(safe-area-inset-bottom,0px));z-index:9;width:56px;height:56px;border-radius:50%;background:#1FAF5A;display:grid;place-items:center;box-shadow:0 6px 18px rgba(0,0,0,.25)}
.wa-float svg{width:30px;height:30px;fill:#fff}