/* VTA Biotech — design system */
:root{
  --navy:#0b2537; --navy2:#123a52; --teal:#0e7c7b; --teal-d:#0a5c5b;
  --gold:#c9a227; --ink:#1d2b36; --mut:#5b6b78; --line:#e4e9ee;
  --bg:#f6f8fa; --white:#fff; --grad:linear-gradient(135deg,#0b2537 0%,#0e7c7b 100%);
  --shadow:0 10px 30px rgba(11,37,55,.10); --r:14px;
  --mail:#0e7c7b; --wa:#1faa53;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:"Segoe UI",Arial,"Helvetica Neue",sans-serif;color:var(--ink);background:var(--white);line-height:1.65;font-size:16px}
img{max-width:100%;display:block}
a{color:var(--teal);text-decoration:none}
.container{max-width:1180px;margin:0 auto;padding:0 24px}
h1,h2,h3,h4{line-height:1.25;color:var(--navy)}
.section{padding:84px 0}
.section.alt{background:var(--bg)}
.eyebrow{display:inline-block;font-size:13px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--teal);margin-bottom:12px}
.h2{font-size:34px;margin-bottom:14px}
.lead{color:var(--mut);font-size:17.5px;max-width:760px}
.center{text-align:center}.center .lead{margin:0 auto}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:9px;padding:13px 26px;border-radius:10px;font-weight:700;font-size:15.5px;border:2px solid transparent;cursor:pointer;transition:.22s}
.btn svg{width:18px;height:18px;flex:none}
.btn-primary{background:var(--teal);color:#fff}
.btn-primary:hover{background:var(--teal-d);transform:translateY(-2px);box-shadow:0 8px 20px rgba(14,124,123,.32)}
.btn-navy{background:var(--navy);color:#fff}
.btn-navy:hover{background:var(--navy2);transform:translateY(-2px)}
.btn-mail{background:var(--mail);color:#fff}
.btn-mail:hover{background:#0a5c5b;transform:translateY(-2px);box-shadow:0 8px 20px rgba(14,124,123,.3)}
.btn-wa{background:var(--wa);color:#fff}
.btn-wa:hover{background:#178a43;transform:translateY(-2px);box-shadow:0 8px 20px rgba(31,170,83,.3)}
.btn-ghost{border-color:#fff;color:#fff;background:transparent}
.btn-ghost:hover{background:rgba(255,255,255,.12)}
.btn-outline{border-color:var(--teal);color:var(--teal);background:#fff}
.btn-outline:hover{background:var(--teal);color:#fff}

/* header */
.topbar{background:var(--navy);color:#cfe0ea;font-size:13.5px;padding:8px 0}
.topbar .container{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
.topbar a{color:#fff;font-weight:600}
header.site{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:74px}
.logo{display:flex;align-items:center;gap:12px}
.logo-mark{width:44px;height:44px;border-radius:11px;background:var(--grad);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:15px;letter-spacing:.02em}
.logo b{font-size:20px;color:var(--navy);letter-spacing:.04em}
.logo span{display:block;font-size:11px;color:var(--mut);letter-spacing:.06em}
nav.links{display:flex;gap:26px;align-items:center}
nav.links a{color:var(--ink);font-weight:600;font-size:15px;padding:6px 0;border-bottom:2.5px solid transparent}
nav.links a:hover,nav.links a.active{color:var(--teal);border-color:var(--teal)}
.nav-toggle{display:none;background:none;border:0;cursor:pointer;padding:8px}
.nav-toggle span{display:block;width:24px;height:2.6px;background:var(--navy);margin:5px 0;border-radius:2px}

/* hero */
.hero{position:relative;color:#fff;overflow:hidden}
.hero-bg{position:absolute;inset:0;background:url("../img/factory/hero-vials.jpg") center/cover no-repeat}
.hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(7,26,40,.93) 22%,rgba(9,46,63,.82) 55%,rgba(10,60,70,.55))}
.hero .container{position:relative;padding:110px 24px 120px;max-width:1180px}
.hero h1{color:#fff;font-size:50px;max-width:720px;margin-bottom:18px}
.hero h1 em{font-style:normal;color:#5fd4c9}
.hero p{font-size:19px;color:#d7e4ec;max-width:640px;margin-bottom:34px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap}
.hero-badges{display:flex;gap:26px;margin-top:46px;flex-wrap:wrap}
.hero-badges div{display:flex;gap:10px;align-items:center;color:#e7f0f5;font-size:14.5px;font-weight:600}
.hero-badges svg{width:20px;height:20px;color:#5fd4c9}

/* stats band */
.stats{background:var(--navy);color:#fff;padding:34px 0}
.stats .container{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;text-align:center}
.stats b{font-size:34px;color:#5fd4c9;display:block}
.stats span{font-size:14px;color:#b9cdd9}

/* cards & grids */
.grid{display:grid;gap:26px}
.g3{grid-template-columns:repeat(3,1fr)}.g4{grid-template-columns:repeat(4,1fr)}.g2{grid-template-columns:repeat(2,1fr)}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:30px;box-shadow:var(--shadow);transition:.25s}
.card:hover{transform:translateY(-5px);box-shadow:0 16px 40px rgba(11,37,55,.14)}
.card h3{font-size:19px;margin:14px 0 8px}
.card p{color:var(--mut);font-size:14.8px}
.ico{width:54px;height:54px;border-radius:13px;background:#e8f5f4;color:var(--teal);display:flex;align-items:center;justify-content:center}
.ico svg{width:26px;height:26px}

/* category tiles */
.cat-tile{position:relative;border-radius:var(--r);overflow:hidden;min-height:190px;display:flex;align-items:flex-end;color:#fff;background:var(--navy)}
.cat-tile .c-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.5;transition:.3s}
.cat-tile:hover .c-bg{opacity:.72;transform:scale(1.05)}
.cat-tile .c-txt{position:relative;padding:22px;width:100%}
.cat-tile .c-txt::before{content:"";position:absolute;inset:0;background:linear-gradient(to top,rgba(7,25,38,.92),rgba(7,25,38,.15));z-index:-1}
.cat-tile h3{color:#fff;font-size:19px}
.cat-tile p{font-size:13.5px;color:#cfe0ea}
.cat-tile .c-count{position:absolute;top:16px;right:16px;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.35);padding:3px 12px;border-radius:20px;font-size:12.5px;font-weight:700;backdrop-filter:blur(4px)}

/* product cards */
.p-card{background:#fff;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;display:flex;flex-direction:column;transition:.25s;box-shadow:0 4px 14px rgba(11,37,55,.06)}
.p-card:hover{transform:translateY(-6px);box-shadow:0 18px 40px rgba(11,37,55,.14)}
.p-card .p-img{aspect-ratio:1/1;background:#f2f5f7;display:flex;align-items:center;justify-content:center;overflow:hidden}
.p-card .p-img img{width:100%;height:100%;object-fit:cover;transition:.4s}
.p-card:hover .p-img img{transform:scale(1.04)}
.p-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:8px;flex:1}
.p-body h3{font-size:17px}
.p-tags{display:flex;gap:8px;flex-wrap:wrap}
.tag{font-size:12px;font-weight:700;padding:3px 11px;border-radius:20px;background:#e8f5f4;color:var(--teal-d)}
.tag.code{background:#eef2f6;color:var(--navy2)}
.tag.purity{background:#f4ecda;color:#8a6d14}
.p-foot{margin-top:auto;display:flex;gap:8px;padding-top:6px}
.p-foot .btn{flex:1;justify-content:center;padding:10px 8px;font-size:13.5px;border-radius:9px}

/* filters */
.filters{display:flex;gap:10px;flex-wrap:wrap;margin:26px 0 10px}
.chip{padding:9px 20px;border-radius:24px;border:1.5px solid var(--line);background:#fff;font-weight:600;font-size:14px;color:var(--mut);cursor:pointer;transition:.2s}
.chip:hover{border-color:var(--teal);color:var(--teal)}
.chip.on{background:var(--navy);border-color:var(--navy);color:#fff}
.search-row{display:flex;gap:12px;margin:18px 0 30px;max-width:560px}
.search-row input{flex:1;padding:13px 18px;border:1.5px solid var(--line);border-radius:10px;font-size:15px;outline:none}
.search-row input:focus{border-color:var(--teal)}

/* product detail */
.crumbs{font-size:13.5px;color:var(--mut);padding:22px 0 0}
.crumbs a{color:var(--mut)}
.pd-grid{display:grid;grid-template-columns:1fr 1.15fr;gap:44px;margin-top:26px}
.pd-img{border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:#f2f5f7}
.pd-img img{width:100%}
.pd-info h1{font-size:34px;margin:6px 0 10px}
.pd-info .sub{color:var(--mut);font-size:16.5px;margin-bottom:18px}
.spec-table{width:100%;border-collapse:collapse;margin:22px 0;font-size:14.5px}
.spec-table th,.spec-table td{border:1px solid var(--line);padding:10px 14px;text-align:left}
.spec-table th{background:#eef4f6;color:var(--navy);white-space:nowrap}
.spec-table tr:nth-child(even) td{background:#fafcfd}
.pd-cta{display:flex;gap:12px;flex-wrap:wrap;margin:24px 0}
.pd-note{background:#f4f8f9;border-left:4px solid var(--teal);padding:14px 18px;border-radius:0 10px 10px 0;font-size:14px;color:var(--mut)}
.pd-sec{margin-top:46px}
.pd-sec h2{font-size:23px;margin-bottom:14px}
.benefit-list{list-style:none;display:grid;gap:11px}
.benefit-list li{display:flex;gap:11px;align-items:flex-start;color:#334453}
.benefit-list svg{width:20px;height:20px;color:var(--teal);flex:none;margin-top:3px}
.rel-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;margin-top:22px}

/* factory showcase */
.fshow{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.fshow figure{position:relative;border-radius:var(--r);overflow:hidden;margin:0}
.fshow img{width:100%;height:250px;object-fit:cover;transition:.4s}
.fshow figure:hover img{transform:scale(1.05)}
.fshow figcaption{position:absolute;left:0;right:0;bottom:0;padding:34px 18px 14px;color:#fff;font-size:14.5px;font-weight:600;background:linear-gradient(to top,rgba(7,25,38,.85),transparent)}

/* process steps */
.steps{counter-reset:st;display:grid;grid-template-columns:repeat(4,1fr);gap:26px}
.step{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:28px;position:relative;box-shadow:var(--shadow)}
.step::before{counter-increment:st;content:"0" counter(st);font-size:40px;font-weight:800;color:#e3edf0;position:absolute;top:16px;right:22px}
.step h3{font-size:17.5px;margin:12px 0 8px}
.step p{font-size:14.5px;color:var(--mut)}

/* split sections */
.split{display:grid;grid-template-columns:1.05fr 1fr;gap:54px;align-items:center}
.split img{border-radius:var(--r);box-shadow:var(--shadow)}
.tick-list{list-style:none;display:grid;gap:12px;margin-top:18px}
.tick-list li{display:flex;gap:11px;align-items:flex-start;color:#334453}
.tick-list svg{width:20px;height:20px;color:var(--teal);flex:none;margin-top:3px}

/* quote band */
.band{background:var(--grad);color:#fff;text-align:center;padding:74px 24px;border-radius:20px}
.band h2{color:#fff;font-size:32px;margin-bottom:12px}
.band p{color:#d7e8ee;max-width:640px;margin:0 auto 28px}
.band .btn-mail{background:#fff;color:var(--teal-d)}
.band .btn-mail:hover{background:#e8f5f4}

/* faq */
.faq-item{border:1px solid var(--line);border-radius:12px;background:#fff;margin-bottom:14px;overflow:hidden}
.faq-item button{width:100%;text-align:left;background:none;border:0;padding:20px 24px;font-size:16.5px;font-weight:700;color:var(--navy);cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:14px}
.faq-item .fx{font-size:24px;color:var(--teal);transition:.25s}
.faq-item.open .fx{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-a p{padding:0 24px 20px;color:var(--mut)}

/* contact */
.contact-grid{display:grid;grid-template-columns:1fr 1.2fr;gap:44px}
.info-row{display:flex;gap:15px;align-items:flex-start;margin-bottom:22px}
.info-row .ico{flex:none}
.info-row b{display:block;color:var(--navy)}
.info-row span{color:var(--mut);font-size:15px}
form.inq{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:32px;box-shadow:var(--shadow)}
form.inq label{font-weight:700;font-size:14px;color:var(--navy);display:block;margin:14px 0 6px}
form.inq input,form.inq textarea,form.inq select{width:100%;padding:12px 15px;border:1.5px solid var(--line);border-radius:9px;font-size:15px;font-family:inherit;outline:none}
form.inq input:focus,form.inq textarea:focus{border-color:var(--teal)}

/* footer */
footer.site{background:var(--navy);color:#a9bfcc;margin-top:90px}
.f-main{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:38px;padding:60px 0 40px}
footer.site h4{color:#fff;font-size:15.5px;margin-bottom:16px;letter-spacing:.04em}
footer.site a{color:#a9bfcc;display:block;padding:4px 0;font-size:14.5px}
footer.site a:hover{color:#5fd4c9}
.f-logo{display:flex;gap:12px;align-items:center;margin-bottom:16px}
.f-logo b{color:#fff;font-size:19px}
.f-logo span{color:#8aa5b5;font-size:12px}
footer.site p{font-size:14.2px}
.f-contact div{display:flex;gap:10px;margin-bottom:10px;font-size:14.2px}
.f-contact svg{width:17px;height:17px;color:#5fd4c9;flex:none;margin-top:3px}
.f-bot{border-top:1px solid rgba(255,255,255,.12);padding:20px 0;font-size:13px;color:#7e97a6}
.f-bot .container{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}

/* floating whatsapp */
.wa-float{position:fixed;right:22px;bottom:22px;z-index:60;width:58px;height:58px;border-radius:50%;background:var(--wa);display:flex;align-items:center;justify-content:center;box-shadow:0 10px 26px rgba(31,170,83,.45);transition:.25s}
.wa-float:hover{transform:scale(1.08)}
.wa-float svg{width:30px;height:30px;color:#fff}

/* page head */
.page-head{background:linear-gradient(115deg,#0b2537 0%,#12455c 60%,#0e7c7b 100%);color:#fff;padding:64px 0 58px}
.page-head h1{color:#fff;font-size:40px;margin-bottom:10px}
.page-head p{color:#cfe0ea;max-width:680px;font-size:17px}

/* reveal animation */
.rv{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s ease}
.rv.in{opacity:1;transform:none}

/* toast */
.toast{position:fixed;left:50%;bottom:30px;transform:translateX(-50%) translateY(80px);background:var(--navy);color:#fff;padding:14px 26px;border-radius:12px;font-weight:600;font-size:14.5px;opacity:0;transition:.35s;z-index:99;box-shadow:0 14px 34px rgba(0,0,0,.28)}
.toast.show{opacity:1;transform:translateX(-50%)}

@media(max-width:1020px){
  .g4,.rel-grid{grid-template-columns:repeat(2,1fr)}
  .g3,.fshow{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .pd-grid,.split,.contact-grid{grid-template-columns:1fr}
  .f-main{grid-template-columns:repeat(2,1fr)}
  .hero h1{font-size:38px}
}
@media(max-width:640px){
  .g3,.g4,.g2,.fshow,.steps,.rel-grid{grid-template-columns:1fr}
  nav.links{display:none;position:absolute;top:74px;left:0;right:0;background:#fff;flex-direction:column;padding:20px 24px;gap:16px;border-bottom:1px solid var(--line);box-shadow:0 20px 40px rgba(11,37,55,.12)}
  nav.links.open{display:flex}
  .nav-toggle{display:block}
  .hero h1{font-size:31px}
  .h2{font-size:27px}
  .stats .container{grid-template-columns:repeat(2,1fr)}
  .section{padding:60px 0}
}