:root{--bg:#071019;--bg2:#0b1621;--ink:#f4f8fb;--muted:#91a2b0;--cyan:#2f8fdc;--cyan2:#93c5f5;--navy:#1e2c53;--navy2:#16213d;--brand-blue:#017dbb;--slate:#4a5568;--line:rgba(180,220,235,.12);--light:#edf3f5;--darkText:#0b1720}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;overflow-x:hidden}a{color:inherit;text-decoration:none}
em{font-style:normal;color:var(--cyan)}
mark{background:transparent;color:inherit;font-weight:inherit;position:relative;padding:0 .08em}
mark:before{content:"";position:absolute;left:-.06em;right:-.06em;bottom:.06em;top:.3em;background:rgba(1,125,187,.16);z-index:-1;border-radius:2px}
.light mark:before{background:rgba(1,125,187,.14)}

/* --- nav: transparent over the hero, solid once you scroll past it so it never blends with section backgrounds --- */
.site-nav{position:fixed;top:0;left:0;width:100%;height:76px;padding:0 clamp(20px,5vw,72px);display:flex;align-items:center;justify-content:space-between;z-index:50;background:linear-gradient(180deg,rgba(7,16,25,.85),transparent);transition:background .25s ease,box-shadow .25s ease,color .25s ease}
.site-nav.scrolled{background:#fff;box-shadow:0 2px 18px rgba(8,23,32,.08);color:var(--darkText)}
.brand{font-weight:900;letter-spacing:.08em;display:flex;align-items:center;gap:10px}
.brand span{color:var(--cyan)}
.site-nav.scrolled .brand span{color:var(--brand-blue)}
.brand-mark{height:30px;width:auto;display:block}
nav{display:flex;gap:30px;align-items:center;font-size:.78rem;letter-spacing:.12em;text-transform:uppercase}
.nav-burger{display:none;flex-direction:column;justify-content:center;gap:5px;width:34px;height:34px;background:none;border:none;cursor:pointer;padding:0}
.nav-burger span{display:block;width:22px;height:2px;background:var(--ink);transition:transform .2s,opacity .2s}
.site-nav.scrolled .nav-burger span{background:var(--darkText)}
.nav-burger[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
nav a{opacity:.72;transition:opacity .2s}
nav a:hover{opacity:1}
.nav-cta{border:1px solid rgba(53,199,255,.45);padding:10px 15px;border-radius:4px!important;color:var(--cyan);opacity:1!important}
.site-nav.scrolled .nav-cta{border-color:rgba(1,125,187,.4);color:var(--brand-blue)}
.nav-guide{display:flex;align-items:center;gap:7px}
.nav-guide i{width:7px;height:7px;border-radius:50%;background:var(--cyan);box-shadow:0 0 0 rgba(53,199,255,.6);animation:navpulse 1.8s infinite}
.site-nav.scrolled .nav-guide i{background:var(--brand-blue);box-shadow:0 0 0 rgba(1,125,187,.6)}
@keyframes navpulse{0%{box-shadow:0 0 0 0 rgba(53,199,255,.55)}70%{box-shadow:0 0 0 8px rgba(53,199,255,0)}100%{box-shadow:0 0 0 0 rgba(53,199,255,0)}}

/* --- loader --- */
.loader{position:fixed;inset:0;background:#050c13;z-index:1000;display:grid;place-items:center;transition:opacity .3s ease,visibility .3s ease}
.loader.done{opacity:0;visibility:hidden;pointer-events:none}
.loader-inner{text-align:center;width:min(270px,80vw)}
.loader-mark{height:34px;width:auto;margin:14px auto 2px;display:block;filter:drop-shadow(0 0 10px rgba(53,199,255,.35))}
.loader-brand{font-weight:900;letter-spacing:.2em;margin:6px 0 16px}
.loader-line{height:1px;background:rgba(255,255,255,.12);overflow:hidden}
.loader-line i{display:block;height:100%;width:0;background:var(--cyan);box-shadow:0 0 15px var(--cyan)}
.loader small{display:flex;justify-content:space-between;margin-top:9px;color:#637582;font-size:8px;letter-spacing:.13em}
.loader small b{color:#9fb2be;font-weight:500}
.mini-dna{width:42px;height:66px;margin:auto;position:relative}
.mini-dna:before,.mini-dna:after{content:"";position:absolute;inset:0;border:1px solid var(--cyan);border-radius:50% 50% 48% 48%;transform:rotate(18deg);opacity:.75}
.mini-dna:after{transform:rotate(-18deg)}
.mini-dna span{position:absolute;left:8px;right:8px;height:1px;background:rgba(53,199,255,.7)}
.mini-dna span:nth-child(1){top:10px}.mini-dna span:nth-child(2){top:23px}.mini-dna span:nth-child(3){top:36px}.mini-dna span:nth-child(4){top:49px}.mini-dna span:nth-child(5){top:62px}

/* --- finite scroll story: DNA -> molecule -> product -> shatter, left lane / right copy --- */
.experience{height:440vh;background:var(--bg);position:relative}
.experience-sticky{position:sticky;top:0;height:100vh;min-height:620px;overflow:hidden;isolation:isolate}
.science-bg{position:absolute;inset:0;pointer-events:none;z-index:-3;background:radial-gradient(circle at 68% 45%,rgba(22,89,117,.18),transparent 30%),radial-gradient(circle at 25% 65%,rgba(12,70,96,.12),transparent 25%)}
.grid{position:absolute;inset:-20%;background-image:linear-gradient(rgba(80,160,190,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(80,160,190,.045) 1px,transparent 1px);background-size:70px 70px;transform:perspective(700px) rotateX(65deg) translateY(30%);transform-origin:center bottom}
.orb{position:absolute;border-radius:50%;border:1px solid rgba(53,199,255,.13);background:radial-gradient(circle,rgba(53,199,255,.11),transparent 66%);will-change:transform}
.orb-a{width:32vw;height:32vw;left:-12vw;top:20%}
.orb-b{width:18vw;height:18vw;right:4%;top:12%}
.orb-c{width:12vw;height:12vw;right:22%;bottom:4%}
.molecule{position:absolute;width:120px;height:120px;opacity:.38}
.molecule-a{right:12%;bottom:18%}
.molecule-b{left:14%;top:17%}
.molecule i{position:absolute;width:13px;height:13px;border:1px solid var(--cyan);border-radius:50%;box-shadow:0 0 15px rgba(53,199,255,.25)}
.molecule i:nth-child(1){left:8%;top:45%}.molecule i:nth-child(2){left:48%;top:8%}.molecule i:nth-child(3){right:5%;top:52%}.molecule i:nth-child(4){left:48%;bottom:3%}
.molecule:after,.molecule:before{content:"";position:absolute;height:1px;background:rgba(53,199,255,.3);width:54%;left:22%;top:48%;transform:rotate(-38deg)}
.molecule:before{transform:rotate(38deg)}
.light-beam{position:absolute;width:60vw;height:20vh;right:-20vw;top:35%;background:linear-gradient(90deg,transparent,rgba(53,199,255,.06),transparent);transform:rotate(-18deg);filter:blur(10px)}

.story-object{position:absolute;top:0;left:0;width:58%;height:100%;z-index:-1;display:grid;place-items:center;pointer-events:none;will-change:transform}
.dna-object,.molecule-object,.product-object,.shatter{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);will-change:transform,opacity}
.dna-object{width:min(29vw,310px);height:78vh;opacity:1}
.dna-photo{width:100%;height:100%;object-fit:contain;filter:drop-shadow(0 10px 30px rgba(53,199,255,.25))}
.dna-object svg{width:100%;height:100%;overflow:visible}
.dna-strand{stroke:var(--cyan);stroke-width:2;opacity:.7}
.dna-rungs path{stroke:rgba(150,230,255,.42);stroke-width:1}
.molecule-object{width:min(28vw,360px);aspect-ratio:1;opacity:0;filter:drop-shadow(0 0 25px rgba(53,199,255,.12))}
.molecule-object svg{width:100%;height:100%}
.molecule-bonds{stroke:rgba(53,199,255,.58);stroke-width:3}
.atom{fill:#071019;stroke:var(--cyan);stroke-width:2}
.atom-core{fill:rgba(53,199,255,.16);filter:drop-shadow(0 0 12px rgba(53,199,255,.4))}
.product-object{width:270px;height:380px;opacity:0;transform:translate(-50%,55%) scale(.5)}
.product-photo{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;z-index:3;filter:drop-shadow(0 18px 30px rgba(0,0,0,.35))}
.vial{position:absolute;left:50%;bottom:45px;width:120px;height:235px;transform:translateX(-50%);border:1px solid rgba(190,235,250,.7);border-radius:20px 20px 14px 14px;background:linear-gradient(90deg,rgba(180,230,245,.05),rgba(255,255,255,.15),rgba(180,230,245,.03));box-shadow:inset 8px 0 20px rgba(255,255,255,.05),inset -8px 0 18px rgba(0,0,0,.18),0 20px 50px rgba(0,0,0,.25);backdrop-filter:blur(3px)}
.vial:before{content:"";position:absolute;left:15px;right:15px;top:0;height:100%;border-radius:15px;background:linear-gradient(90deg,transparent,rgba(255,255,255,.12),transparent);pointer-events:none}
.vial-cap{position:absolute;left:50%;top:48px;width:74px;height:48px;transform:translateX(-50%);border:1px solid rgba(190,235,250,.45);border-bottom:0;border-radius:10px 10px 3px 3px;background:linear-gradient(90deg,#182b37,#5d7b88,#182b37)}
.vial-label{position:absolute;z-index:2;left:10px;right:10px;top:86px;padding:18px 8px;text-align:center;background:rgba(237,243,245,.92);color:#071019;border-radius:4px;letter-spacing:.08em}
.vial-label strong{font-size:17px}
.vial-label span{font-size:17px;color:#087da8;font-weight:900}
.vial-label small{display:block;margin-top:6px;font-size:6px;letter-spacing:.18em}
.vial-liquid{position:absolute;left:10px;right:10px;bottom:10px;height:85px;border-radius:8px;background:linear-gradient(180deg,rgba(53,199,255,.14),rgba(53,199,255,.03))}
.glass-haze{position:absolute;inset:0;background:radial-gradient(circle,rgba(160,235,255,.08),transparent 60%);filter:blur(5px)}
.product-shadow{position:absolute;left:50%;bottom:22px;width:190px;height:25px;transform:translateX(-50%);background:rgba(0,0,0,.35);filter:blur(15px)}

.product-crosstext{position:absolute;left:50%;top:50%;display:flex;white-space:nowrap;font-weight:900;font-size:clamp(2.6rem,7vw,5.4rem);letter-spacing:.05em;pointer-events:none;transform:translate(-50%,-50%) rotate(-28deg);opacity:0}
.product-crosstext .cross-half{color:transparent;-webkit-text-stroke:1px rgba(140,227,255,.55);mix-blend-mode:screen;will-change:transform}

.shatter{width:560px;height:560px;opacity:0}
.shatter i{position:absolute;left:50%;top:50%;width:3px;height:90px;background:linear-gradient(var(--cyan2),transparent);transform-origin:50% 0;opacity:.8}
.shatter i:nth-child(1){transform:rotate(0deg) translateY(-20px)}.shatter i:nth-child(2){transform:rotate(32deg) translateY(-15px)}.shatter i:nth-child(3){transform:rotate(63deg) translateY(-20px)}.shatter i:nth-child(4){transform:rotate(95deg) translateY(-10px)}.shatter i:nth-child(5){transform:rotate(128deg) translateY(-18px)}.shatter i:nth-child(6){transform:rotate(160deg) translateY(-10px)}.shatter i:nth-child(7){transform:rotate(190deg) translateY(-14px)}.shatter i:nth-child(8){transform:rotate(224deg) translateY(-12px)}.shatter i:nth-child(9){transform:rotate(255deg) translateY(-18px)}.shatter i:nth-child(10){transform:rotate(287deg) translateY(-8px)}.shatter i:nth-child(11){transform:rotate(320deg) translateY(-16px)}.shatter i:nth-child(12){transform:rotate(350deg) translateY(-12px)}

.particle-burst{position:absolute;left:50%;top:50%;width:2px;height:2px;pointer-events:none}
.particle-burst span{position:absolute;left:0;top:0;width:var(--sz,4px);height:var(--sz,4px);border-radius:50%;background:var(--cyan2);box-shadow:0 0 8px 1px rgba(140,227,255,.7);opacity:0;transform:translate(-50%,-50%) rotate(var(--ang,0deg)) translateY(0);will-change:transform,opacity}
.particle-burst span:nth-child(1){--ang:0deg;--sz:5px}.particle-burst span:nth-child(2){--ang:15deg;--sz:3px}.particle-burst span:nth-child(3){--ang:32deg;--sz:6px}.particle-burst span:nth-child(4){--ang:48deg;--sz:3px}.particle-burst span:nth-child(5){--ang:64deg;--sz:4px}.particle-burst span:nth-child(6){--ang:81deg;--sz:5px}.particle-burst span:nth-child(7){--ang:97deg;--sz:3px}.particle-burst span:nth-child(8){--ang:113deg;--sz:6px}.particle-burst span:nth-child(9){--ang:130deg;--sz:4px}.particle-burst span:nth-child(10){--ang:146deg;--sz:3px}.particle-burst span:nth-child(11){--ang:162deg;--sz:5px}.particle-burst span:nth-child(12){--ang:180deg;--sz:4px}.particle-burst span:nth-child(13){--ang:196deg;--sz:6px}.particle-burst span:nth-child(14){--ang:213deg;--sz:3px}.particle-burst span:nth-child(15){--ang:229deg;--sz:4px}.particle-burst span:nth-child(16){--ang:245deg;--sz:5px}.particle-burst span:nth-child(17){--ang:262deg;--sz:3px}.particle-burst span:nth-child(18){--ang:278deg;--sz:6px}.particle-burst span:nth-child(19){--ang:294deg;--sz:4px}.particle-burst span:nth-child(20){--ang:311deg;--sz:3px}.particle-burst span:nth-child(21){--ang:327deg;--sz:5px}.particle-burst span:nth-child(22){--ang:343deg;--sz:4px}.particle-burst span:nth-child(23){--ang:352deg;--sz:3px}.particle-burst span:nth-child(24){--ang:8deg;--sz:5px}

.burst-flash{position:absolute;left:50%;top:50%;width:60px;height:60px;border-radius:50%;transform:translate(-50%,-50%) scale(0);opacity:0;background:radial-gradient(circle,rgba(255,255,255,.95),rgba(53,199,255,.55) 35%,rgba(53,199,255,0) 72%);pointer-events:none;will-change:transform,opacity}
.exit-image{position:absolute;left:29%;top:44%;transform:translate(-50%,-50%);width:min(135%,680px);max-height:90vh;object-fit:contain;opacity:0;pointer-events:none;filter:drop-shadow(0 20px 40px rgba(0,0,0,.4));will-change:opacity,transform;z-index:-1}
.entry-video{position:absolute;left:29%;top:44%;transform:translate(-50%,-50%);width:min(135%,680px);max-height:90vh;pointer-events:none;will-change:opacity;z-index:0;opacity:0;filter:drop-shadow(0 20px 40px rgba(0,0,0,.4))}

.story-copy{position:absolute;left:auto;right:clamp(28px,7vw,90px);top:50%;transform:translateY(-50%) translate3d(0,24px,0);width:min(480px,40vw);opacity:0;transition:opacity .42s ease,transform .6s cubic-bezier(.2,.75,.2,1);pointer-events:none;text-align:right}
.story-copy.is-active{opacity:1;transform:translateY(-50%) translate3d(0,0,0)}
.story-copy .scroll-hint{justify-content:flex-end}
.story-copy p{margin-left:auto}
.copy-process{top:52%}.copy-control{top:51%}.copy-product{top:50%}.copy-exit{top:53%}
.copy-product-left{left:clamp(24px,6vw,90px);right:auto;text-align:left;width:min(300px,26vw)}
.copy-product-left h2{margin-bottom:0}
.copy-product-right{width:min(360px,30vw)}
.copy-product-right p{margin-left:auto}
.copy-product h2{font-size:clamp(1.9rem,3.6vw,3.4rem);overflow-wrap:break-word}
.eyebrow{font-size:.68rem;letter-spacing:.24em;font-weight:700;color:var(--cyan);text-transform:uppercase}
.story-copy h1,.story-copy h2{font-size:clamp(2.3rem,4.6vw,4.6rem);line-height:1;letter-spacing:-.03em;margin:16px 0 20px;font-weight:800}
.story-copy p{max-width:520px;color:var(--muted);font-size:clamp(1rem,1.5vw,1.2rem);line-height:1.7}
.scroll-hint{display:flex;align-items:center;gap:12px;margin-top:70px;font-size:.65rem;letter-spacing:.25em;color:#78909e}
.scroll-hint i{display:block;width:35px;height:1px;background:var(--cyan);position:relative}
.scroll-hint i:after{content:"";position:absolute;right:0;top:-3px;width:7px;height:7px;border-right:1px solid var(--cyan);border-top:1px solid var(--cyan);transform:rotate(45deg)}
.story-progress{position:absolute;right:32px;top:50%;display:flex;flex-direction:column;gap:9px;transform:translateY(-50%)}
.story-progress span{width:4px;height:4px;border-radius:50%;background:rgba(255,255,255,.2);transition:transform .25s,background .25s}
.story-progress span.active{background:var(--cyan);transform:scale(1.8)}

.primary-btn{display:inline-flex;gap:26px;align-items:center;margin-top:28px;border:1px solid rgba(53,199,255,.55);padding:15px 22px;color:var(--cyan);font-size:.72rem;letter-spacing:.15em;font-weight:700;transition:background .25s,transform .25s}
.primary-btn:hover{background:rgba(53,199,255,.1);transform:translateY(-2px)}
.primary-btn span{font-size:1rem}

/* --- normal page sections --- */
.static-section{padding:clamp(90px,12vw,160px) 24px;position:relative;overflow:hidden}
.light{background:var(--light);color:var(--darkText)}
.catalog-section{background:#fff;color:var(--darkText)}
.dark-static{background:#08111a}
.content-width{width:min(1160px,100%);margin:auto;position:relative;z-index:1}
.section-intro{max-width:900px;margin-bottom:80px}
.section-intro p,.contact-block p{max-width:520px;color:var(--muted);font-size:clamp(1rem,1.5vw,1.2rem);line-height:1.7}
.light .section-intro p{color:#64747e}
.light .section-intro .eyebrow,.catalog-section .eyebrow{color:#087da8}

/* subtle floating particles injected by JS into every static section, so the
   page keeps feeling alive after the scroll story ends instead of going flat. */
.section-particles{position:absolute;inset:0;pointer-events:none;z-index:0;overflow:hidden}
.sp{position:absolute;left:var(--x);top:var(--y);width:var(--s);height:var(--s);border-radius:50%;background:rgba(1,125,187,.55);animation:hp-float 7s ease-in-out infinite;animation-delay:var(--d)}
.dark-static .sp,.stats-section .sp{background:rgba(53,199,255,.65)}

/* --- subtle parallax texture, only behind the two sections that already have real photos --- */
.section-bg-parallax{position:absolute;inset:-10% 0;background-size:cover;background-position:center;opacity:.16;z-index:0;pointer-events:none;will-change:transform;mix-blend-mode:multiply}
.catalog-section .section-bg-parallax,.light .section-bg-parallax{opacity:.14}

/* --- scroll reveal: elements fade + rise into place as you scroll down --- */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .7s ease,transform .7s cubic-bezier(.2,.7,.2,1)}
.reveal.in-view{opacity:1;transform:translateY(0)}
.reveal-stagger.in-view .reveal-item{transition-delay:calc(var(--ri, 0) * .09s)}
@media(prefers-reduced-motion:reduce){.reveal{opacity:1!important;transform:none!important;transition:none!important}}
@keyframes hp-float{0%,100%{transform:translateY(0) scale(1);opacity:.35}50%{transform:translateY(-26px) scale(1.25);opacity:.85}}
.section-intro h2,.contact-block h2{font-size:clamp(3rem,7vw,7.5rem);line-height:.92;letter-spacing:-.055em;margin:18px 0 24px;font-weight:800}
.section-intro h2{font-size:clamp(3rem,6vw,6rem)}

.stats-section{padding:clamp(60px,8vw,100px) 24px;background:var(--navy2)}
.stats-row{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;text-align:center}
.stat-block{padding:20px 10px;border-left:1px solid rgba(180,220,235,.14)}
.stat-block:first-child{border-left:none}
.stat-num{display:block;font-size:clamp(2.6rem,5.5vw,4.2rem);font-weight:800;letter-spacing:-.03em;color:var(--ink)}
.stat-num b{font-weight:800;color:var(--cyan)}
.stat-label{display:block;margin-top:10px;font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}

.feature-grid,.product-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.feature-card{min-height:280px;border-top:1px solid rgba(8,23,32,.18);padding:28px 10px 20px}
.feature-icon{font-size:1.7rem;color:#087da8}
.feature-card h3{font-size:1.7rem;margin:35px 0 12px}
.feature-card p{color:#657680;line-height:1.7;max-width:320px}
.catalog-intro{margin-bottom:60px}
.product-card{min-height:430px;border:1px solid rgba(8,23,32,.12);padding:24px;display:flex;flex-direction:column;background:#f8fafb;transition:transform .25s,box-shadow .25s}
.product-card:hover{transform:translateY(-5px);box-shadow:0 18px 40px rgba(8,23,32,.08)}
.card-top{display:flex;justify-content:space-between;font-size:.65rem;letter-spacing:.14em;color:#607480}
.product-art{height:190px;display:grid;place-items:center;position:relative}
.peptide-art:before,.peptide-art:after{content:"";position:absolute;width:110px;height:28px;border:1px solid rgba(8,125,168,.4);border-radius:50%;transform:rotate(25deg)}
.peptide-art:after{transform:rotate(-25deg)}
.peptide-art i,.peptide-art b{width:15px;height:15px;border-radius:50%;border:1px solid #087da8;position:absolute}
.peptide-art i{transform:translate(55px,-22px)}
.peptide-art b{transform:translate(-55px,22px)}
.vial-art i{width:64px;height:110px;border:1px solid #7a9aa6;border-radius:12px 12px 9px 9px;background:linear-gradient(90deg,rgba(53,199,255,.03),rgba(53,199,255,.18),rgba(255,255,255,.5));position:relative}
.vial-art i:before{content:"CORELABS";position:absolute;left:5px;right:5px;top:42px;padding:8px 2px;background:#fff;font-size:7px;color:#087da8;text-align:center;font-weight:900}
.vial-art b{position:absolute;width:42px;height:25px;top:34px;background:#3b5966;border-radius:5px 5px 2px 2px}
.code-art{font-weight:900;letter-spacing:.05em}
.code-art i{font-style:normal;font-size:38px}
.code-art b{font-size:38px;color:#087da8}
.product-card h3{font-size:1.55rem;margin:10px 0}
.product-card p{color:#657680;line-height:1.6;margin:0 0 22px}
.product-card a{margin-top:auto;color:#087da8;font-weight:700;font-size:.78rem;letter-spacing:.12em}
.product-card a span{font-size:1rem}
.contact-block{min-height:55vh;display:flex;flex-direction:column;justify-content:center}
.contact-block h2{font-size:clamp(3rem,7vw,7rem)}

@media(max-width:800px){
  nav a:not(.nav-cta){display:none}
  .nav-burger{display:flex}
  #siteNav.nav-open{display:flex!important;position:absolute;top:76px;left:0;right:0;flex-direction:column;background:#fff;padding:14px 24px 24px;box-shadow:0 10px 24px rgba(8,23,32,.12);gap:0}
  #siteNav.nav-open a{display:block!important;padding:13px 0;border-bottom:1px solid #eef2f6;color:#0b1720;opacity:1}
  #siteNav.nav-open .nav-cta{border:1px solid rgba(1,125,187,.4);border-radius:4px;text-align:center;margin-top:10px;padding:12px}
  #siteNav.nav-open .nav-guide{padding:13px 0}
  .experience{height:390vh}
  .story-object{width:100%}
  .exit-image{left:50%;top:28%;width:min(88%,320px)}
  .entry-video{left:50%;top:28%;width:min(88%,320px)}
  .story-copy{left:22px!important;right:22px!important;width:auto!important;top:55%;text-align:left}
  .story-copy p{margin-left:0}
  .story-copy .scroll-hint{justify-content:flex-start}
  .story-copy h1,.story-copy h2{font-size:clamp(2rem,9vw,3.4rem)}
  .copy-product-left{top:42%}
  .copy-product-right{top:60%}
  .dna-object{width:46vw;height:66vh;opacity:.28}
  .molecule-object{width:48vw}
  .story-progress{right:14px}
  .feature-grid,.product-grid{grid-template-columns:1fr}
  .static-section{padding-top:90px;padding-bottom:90px}
  .stats-row{grid-template-columns:1fr;gap:34px}
  .stat-block{border-left:none;border-top:1px solid rgba(180,220,235,.14);padding-top:26px}
  .stat-block:first-child{border-top:none}
}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .story-copy{transition:none}
  .orb,.molecule,.grid,.sp{transform:none!important;animation:none!important}
}

/* --- age gate --- */
.age-gate{position:fixed;inset:0;z-index:2000;background:#050c13;display:grid;place-items:center;padding:24px;transition:opacity .3s ease,visibility .3s ease}
.age-gate.done{opacity:0;visibility:hidden;pointer-events:none}
.age-gate-card{width:min(480px,100%);text-align:center}
.age-gate-mark{height:40px;margin:0 auto 22px;display:block;filter:drop-shadow(0 0 10px rgba(53,199,255,.3))}
.age-gate-card h2{font-size:clamp(1.8rem,4vw,2.4rem);margin:0 0 16px}
.age-gate-card p{color:var(--muted);line-height:1.7;font-size:.92rem;margin-bottom:30px}
.age-gate-actions{display:flex;flex-direction:column;gap:14px;align-items:center}
.age-gate-exit{color:var(--muted);font-size:.8rem;text-decoration:underline}
.primary-btn.solid{background:var(--cyan);border-color:var(--cyan);color:#071019;justify-content:center}
.primary-btn.solid:hover{background:var(--cyan2)}
.primary-btn.full{width:100%;margin-top:6px}

/* --- disclaimer / small print --- */
.disclaimer{font-size:.72rem;line-height:1.6;color:#8a97a0;margin-top:50px;max-width:820px}
.light .disclaimer{color:#7c8b93}

/* --- catalog category tabs --- */
.cat-tabs{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:36px}
.cat-tab{border:1px solid rgba(8,23,32,.15);background:transparent;color:#4a5a63;padding:9px 16px;border-radius:30px;font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;cursor:pointer;transition:background .2s,color .2s,border-color .2s}
.cat-tab.active,.cat-tab:hover{background:var(--brand-blue);border-color:var(--brand-blue);color:#fff}
.catalog-grid{grid-template-columns:repeat(3,1fr)}
.catalog-grid .product-card[hidden]{display:none}
.interest-btn{margin-top:auto;background:none;border:none;padding:0;color:#087da8;font-weight:700;font-size:.78rem;letter-spacing:.12em;cursor:pointer;text-align:left;font-family:inherit}
.interest-btn span{font-size:1rem}

/* --- FAQ accordion --- */
.faq-list{max-width:820px}
.faq-item{border-top:1px solid rgba(8,23,32,.14);padding:18px 0}
.faq-item:last-child{border-bottom:1px solid rgba(8,23,32,.14)}
.faq-item summary{cursor:pointer;font-weight:700;font-size:1.02rem;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:16px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:after{content:"+";font-size:1.4rem;font-weight:400;color:#087da8;flex-shrink:0}
.faq-item[open] summary:after{content:"–"}
.faq-item p{color:#657680;line-height:1.7;margin:14px 0 0;max-width:680px}

/* --- testimonials --- */
.testi-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:20px}
.testi-card{background:#f8fafb;border:1px solid rgba(8,23,32,.1);padding:28px;border-radius:6px}
.testi-card p{font-size:1.05rem;line-height:1.6;color:#26333a;font-style:italic}
.testi-who{margin-top:18px;display:flex;flex-direction:column;font-size:.8rem}
.testi-who b{color:#087da8}
.testi-who span{color:#7c8b93}

/* --- floating whatsapp --- */
.wa-float{position:fixed;right:22px;bottom:22px;width:56px;height:56px;border-radius:50%;background:#25D366;display:grid;place-items:center;color:#fff;box-shadow:0 8px 22px rgba(0,0,0,.25);z-index:60;transition:transform .2s}
.wa-float:hover{transform:scale(1.07)}
.wa-float svg{width:28px;height:28px}

/* --- interest modal --- */
.interest-modal{position:fixed;inset:0;z-index:1500;background:rgba(5,12,19,.72);display:grid;place-items:center;padding:20px;opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease}
.interest-modal.open{opacity:1;visibility:visible}
.interest-card{position:relative;width:min(440px,100%);max-height:88vh;overflow-y:auto;background:#0b1621;border:1px solid rgba(180,220,235,.14);border-radius:10px;padding:34px 30px;color:var(--ink)}
.interest-close{position:absolute;right:14px;top:12px;background:none;border:none;color:var(--muted);font-size:1.6rem;cursor:pointer;line-height:1}
.interest-card h3{font-size:1.7rem;margin:10px 0 6px}
.interest-sub{color:var(--muted);font-size:.85rem;margin-bottom:22px}
.interest-card label{display:block;font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin-bottom:14px}
.interest-card input,.interest-card textarea,.interest-card select{display:block;width:100%;margin-top:6px;padding:11px 12px;background:#050c13;border:1px solid rgba(180,220,235,.18);border-radius:4px;color:var(--ink);font-family:inherit;font-size:.9rem}
.interest-card input:focus,.interest-card textarea:focus,.interest-card select:focus{outline:none;border-color:var(--cyan)}
.interest-status{font-size:.8rem;margin-top:12px;min-height:1em}
.interest-status.ok{color:#5fd39a}
.interest-status.err{color:#ff8a8a}
.interest-success{text-align:center;padding:20px 0 6px}
.interest-success-icon{width:56px;height:56px;border-radius:50%;background:rgba(95,211,154,.15);border:1px solid rgba(95,211,154,.4);color:#5fd39a;font-size:1.6rem;display:grid;place-items:center;margin:0 auto 18px}
.interest-success h4{font-size:1.3rem;margin:0 0 10px}
.interest-success p{color:var(--muted);font-size:.9rem;line-height:1.6}

/* --- footer --- */
.site-footer{background:#050c13;padding:56px 24px 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px;padding-bottom:40px;border-bottom:1px solid rgba(180,220,235,.1)}
.footer-col{display:flex;flex-direction:column;gap:12px}
.footer-col h4{font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);margin:0 0 6px}
.footer-col a{color:var(--ink);font-size:.88rem;opacity:.82;transition:opacity .2s}
.footer-col a:hover{opacity:1;color:var(--cyan)}
.footer-note{color:#5c6b74;font-size:.78rem;line-height:1.6;margin-top:4px}
.footer-brand-col p{color:#7c8b93;font-size:.88rem;line-height:1.65;max-width:280px;margin-top:2px}
.footer-brand{display:flex;align-items:center;gap:10px;font-weight:900;letter-spacing:.08em}
.footer-brand span{color:var(--cyan)}
.footer-brand .brand-mark{height:26px}
.footer-bottom{padding:24px 0 30px}
.site-footer .disclaimer{margin-top:0;color:#5c6b74}

@media(max-width:800px){
  .footer-grid{grid-template-columns:1fr;gap:30px}
}

@media(max-width:800px){
  .catalog-grid{grid-template-columns:1fr}
  .testi-grid{grid-template-columns:1fr}
  .cat-tabs{overflow-x:auto;flex-wrap:nowrap;padding-bottom:4px}
}

/* --- interactive tools: reconstitution calculator + orientation quiz --- */
.tools-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.tool-card{background:#fff;border:1px solid rgba(8,23,32,.1);border-radius:10px;padding:30px}
.tool-card h3{font-size:1.5rem;margin:8px 0 4px}
.tool-sub{color:#7c8b93;font-size:.85rem;margin-bottom:22px}
.tool-card label{display:block;font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;color:#5c6b74;margin-bottom:14px}
.tool-card input{display:block;width:100%;margin-top:6px;padding:11px 12px;background:#f8fafb;border:1px solid #e2e8f0;border-radius:6px;color:#0b1720;font-family:inherit;font-size:.9rem}
.tool-card input:focus{outline:none;border-color:var(--brand-blue)}
.tool-result{margin-top:18px;background:#f0f7ff;border:1px solid #cfe2ff;border-radius:8px;padding:16px 18px;display:grid;grid-template-columns:1fr auto;gap:6px 12px;align-items:center}
.tool-result span{font-size:.72rem;color:#5c6b74;text-transform:uppercase;letter-spacing:.06em}
.tool-result b{color:#087da8;font-size:1.05rem;text-align:right}
.quiz-options{display:flex;flex-direction:column;gap:10px}
.quiz-options button{text-align:left;padding:13px 16px;border:1px solid #e2e8f0;background:#f8fafb;border-radius:8px;font-size:.88rem;color:#1e293b;cursor:pointer;transition:border-color .2s,background .2s}
.quiz-options button:hover,.quiz-options button.picked{border-color:var(--brand-blue);background:#f0f7ff}
.quiz-result{margin-top:20px;padding-top:20px;border-top:1px solid #eef2f6}
.quiz-result h4{font-size:1.3rem;margin:6px 0 16px;color:#087da8}
.quiz-suggested-products{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px}
.quiz-pick{display:inline-block;background:#eff6fb;border:1px solid #cfe2ec;color:#087da8;padding:8px 14px;border-radius:20px;font-size:.8rem;font-weight:700;transition:background .2s,border-color .2s}
.quiz-pick:hover{background:#087da8;color:#fff;border-color:#087da8}
.quiz-pick.static{color:#94a3b8;background:#f1f5f7;border-color:#e2e8ec;cursor:default}
.quiz-pick.static:hover{background:#f1f5f7;color:#94a3b8}

@media(max-width:800px){
  .tools-grid{grid-template-columns:1fr}
}

/* --- authorized distributor trust block --- */
.distributor-band{padding-top:clamp(70px,9vw,110px);padding-bottom:clamp(70px,9vw,110px)}
.distributor-card{position:relative;background:linear-gradient(135deg,#0d1b2c,#132a42);border:1px solid rgba(53,199,255,.18);border-radius:20px;padding:52px 48px;max-width:760px;overflow:hidden}
.distributor-glow{position:absolute;top:-40%;right:-15%;width:420px;height:420px;background:radial-gradient(circle,rgba(53,199,255,.28),transparent 70%);pointer-events:none}
.distributor-card .eyebrow{color:var(--cyan)}
.distributor-card h2{color:#fff;font-size:clamp(2rem,4vw,2.8rem);margin:12px 0 18px;position:relative}
.distributor-card p{color:#a9bac4;line-height:1.75;font-size:.95rem;margin-bottom:30px;max-width:600px;position:relative}
.distributor-number{position:relative;display:inline-flex;flex-wrap:wrap;align-items:center;gap:10px;background:#25D366;color:#fff;padding:18px 28px;border-radius:10px;font-weight:800;font-size:1.2rem;box-shadow:0 10px 30px rgba(37,211,102,.25)}
.distributor-number svg{width:26px;height:26px;flex-shrink:0}
.distributor-number small{display:block;width:100%;font-weight:400;font-size:.68rem;opacity:.85;margin-top:2px}
.distributor-number span{font-weight:400;font-size:.7rem;opacity:.85;margin-left:4px}
.distributor-number.pulse{animation:distributor-pulse 2.2s infinite}
@keyframes distributor-pulse{0%{box-shadow:0 0 0 0 rgba(37,211,102,.55),0 10px 30px rgba(37,211,102,.25)}70%{box-shadow:0 0 0 16px rgba(37,211,102,0),0 10px 30px rgba(37,211,102,.25)}100%{box-shadow:0 0 0 0 rgba(37,211,102,0),0 10px 30px rgba(37,211,102,.25)}}
@media(prefers-reduced-motion:reduce){.distributor-number.pulse{animation:none}}

/* --- catalog card: clip the description, make it obvious there's more --- */
.catalog-grid .product-card{cursor:pointer;transition:transform .2s,box-shadow .2s}
.catalog-grid .product-card:hover{transform:translateY(-4px);box-shadow:0 14px 30px rgba(8,23,32,.1)}
.catalog-grid .product-card p{display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;text-overflow:ellipsis}
.catalog-grid .product-card .view-more{display:block;color:#087da8;font-weight:700;font-size:.74rem;letter-spacing:.1em;margin:-6px 0 14px}
.catalog-grid .interest-btn{position:relative;z-index:2}

/* --- standalone product page (producto.php) --- */
.back-link{display:inline-block;color:#087da8;font-weight:700;font-size:.8rem;margin-bottom:30px}
.product-page-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:60px;align-items:start}
.product-page-art{height:420px;border-radius:10px;background:#eef2f4;display:grid;place-items:center;background-size:cover;background-position:center}
.product-page-art i,.product-page-art b{width:90px;height:150px;border:1px solid #7a9aa6;border-radius:14px 14px 10px 10px;background:linear-gradient(90deg,rgba(53,199,255,.03),rgba(53,199,255,.18),rgba(255,255,255,.5))}
.product-page-info h1{font-size:clamp(2.2rem,4vw,3rem);margin:10px 0 22px;letter-spacing:-.02em}
.product-page-desc p{color:#4a5a63;line-height:1.75;margin-bottom:16px;font-size:1rem}
.product-page-actions{display:flex;flex-wrap:wrap;gap:14px;margin:28px 0 40px}
.secondary-btn{display:inline-flex;gap:12px;align-items:center;border:1px solid #cbd5db;padding:15px 22px;color:#0b1720;font-size:.72rem;letter-spacing:.12em;font-weight:700}
.secondary-btn:hover{border-color:#087da8;color:#087da8}
.order-process{background:#f8fafb;border:1px solid #e2e8ec;border-radius:10px;padding:26px 28px;margin-bottom:34px}
.order-process ol{margin:14px 0 0;padding-left:20px;color:#4a5a63;line-height:1.8}
.order-process li{margin-bottom:8px}
.product-page-disclaimer{font-size:.78rem;color:#8a97a0;line-height:1.7}

.product-page-full-desc{margin-top:60px;padding-top:44px;border-top:1px solid #e2e8ec;max-width:760px}
.product-page-full-desc h3{font-size:1.4rem;margin:8px 0 22px}
.product-page-full-desc p{color:#4a5a63;line-height:1.75;margin-bottom:16px;font-size:.95rem}

@media(max-width:800px){
  .product-page-grid{grid-template-columns:1fr;gap:30px}
  .product-page-art{height:280px}
}

/* --- reusable image placeholder — mark clearly where a real photo goes --- */
.img-placeholder{background:repeating-linear-gradient(135deg,#f4f7f8,#f4f7f8 10px,#eef2f4 10px,#eef2f4 20px);border:1px dashed #c3d0d6;border-radius:12px;display:flex;align-items:center;justify-content:center;text-align:center;color:#8a97a0;font-size:.68rem;letter-spacing:.08em;text-transform:uppercase;line-height:1.6;padding:20px}

/* --- image + text split blocks (beneficios, confianza) --- */
.split-block{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;margin-bottom:70px}
.split-block.reverse .split-text{order:2}
.split-block.reverse .split-img{order:1}
.split-img{min-height:340px;width:100%;height:100%;object-fit:cover;border-radius:12px;display:block;box-shadow:0 1px 3px rgba(8,23,32,.08),0 0 0 1px rgba(8,23,32,.06)}
.split-text p{color:#4a5a63;font-size:1.05rem;line-height:1.7;max-width:460px}
.split-text .eyebrow{color:#087da8}

/* --- our process --- */
.process-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:30px;margin-top:20px}
.process-num{display:block;font-size:.75rem;font-weight:800;letter-spacing:.1em;color:#087da8;margin-bottom:14px;position:relative;z-index:2}
.process-step{position:relative;z-index:1}
.process-img{height:170px;width:100%;object-fit:cover;border-radius:10px;margin-bottom:24px;display:block;box-shadow:0 1px 3px rgba(8,23,32,.08),0 0 0 1px rgba(8,23,32,.06)}
.process-step h3{position:relative;z-index:2;font-size:1.25rem;margin:0 0 8px}
.process-step p{color:#657680;line-height:1.65;font-size:.92rem}

/* --- trusted by / confianza --- */
.trust-points{margin-top:28px;display:grid;gap:20px}
.trust-point h4{font-size:1.02rem;margin:0 0 6px;color:#0b1720}
.trust-point p{color:#657680;font-size:.9rem;line-height:1.6;max-width:420px}

/* --- WhatsApp help band --- */
.help-band{background:var(--navy2);padding:56px 24px}
.help-band-inner{display:flex;justify-content:space-between;align-items:center;gap:30px;flex-wrap:wrap}
.help-band-inner h3{color:var(--ink);font-size:1.4rem;font-weight:700;max-width:520px;margin:8px 0 0}
.help-band-inner .eyebrow{color:var(--cyan)}
.help-band .distributor-number span{font-weight:700;opacity:.9}

/* --- lightweight looping video band, before "For clinics" --- */
.video-band{position:relative;height:min(60vh,480px);overflow:hidden;background:#0b1621}
.video-band-media{width:100%;height:100%;object-fit:cover;display:block}
@media(max-width:800px){.video-band{height:38vh}}

/* --- contrast polish: make sure text on light sections is always legible,
   never inheriting the dark-theme ink color from body --- */
.light, .catalog-section { color: #0b1720; }
.light p, .catalog-section p { color: #4a5a63; }
.light h1, .light h2, .light h3, .light h4,
.catalog-section h1, .catalog-section h2, .catalog-section h3, .catalog-section h4 { color: #0b1720; }

@media(max-width:800px){
  .split-block, .split-block.reverse .split-text, .split-block.reverse .split-img{grid-template-columns:1fr;order:0}
  .split-block{grid-template-columns:1fr;gap:26px}
  .process-grid{grid-template-columns:1fr;gap:46px}
  .help-band-inner{flex-direction:column;align-items:flex-start}
}