/* ============================================================
   BIOAMINO LABS Srbija — site stylesheet
   Mobile-first. Last audit: 2026-11-03
   ============================================================ */

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}

:root{
  --navy:#1C2E78;
  --navy-dark:#141F55;
  --navy-light:#2E42A0;
  --gold:#C9A24B;
  --bg:#F3F3F5;
  --white:#ffffff;
  --ink:#1a1a1a;
  --muted:#5b6478;
  --border:#e3e5ec;
  --telegram:#2AABEE;
}

html{scroll-behavior:smooth}
body{
  font-family:'Montserrat',system-ui,-apple-system,sans-serif;
  color:var(--ink);background:var(--white);line-height:1.5;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}

.wrap{max-width:1200px;margin:0 auto;padding:0 20px}

/* ============================================================
   DISCLAIMER BAR (research-only, always on top)
   ============================================================ */
.disclaimer-bar{
  background:#fff8dd;color:#5a4600;text-align:center;
  padding:9px 14px;font-size:12px;letter-spacing:.6px;font-weight:600;
  border-bottom:1px solid #e8dba0;position:relative;z-index:50;line-height:1.4;
}

/* ============================================================
   HEADER
   ============================================================ */
header.main{
  background:var(--white);border-bottom:1px solid var(--border);
  position:sticky;top:0;z-index:20;
}
header.main .wrap{
  display:flex;align-items:center;justify-content:space-between;
  height:72px;gap:12px;
}
.logo{display:flex;align-items:center;gap:14px;flex-shrink:0}
.logo-pill{
  background:var(--navy);color:var(--white);border-radius:40px;
  padding:9px 18px;text-align:center;line-height:1;
}
.logo-pill b{
  font-style:italic;letter-spacing:.8px;font-size:14px;
  font-weight:800;display:block;
}
.logo-pill small{
  display:block;font-size:8.5px;letter-spacing:1.2px;opacity:.75;
  margin-top:3px;font-weight:500;
}

nav.main{display:none} /* hidden on mobile, shown ≥720px */
.nav-toggle{
  display:flex;align-items:center;justify-content:center;
  background:none;border:none;cursor:pointer;padding:8px;
  width:40px;height:40px;color:var(--navy);
}
.nav-toggle svg{width:24px;height:24px}

/* Mobile slide-down menu */
.mobile-menu{
  display:none;position:absolute;top:100%;left:0;right:0;
  background:var(--white);border-bottom:1px solid var(--border);
  box-shadow:0 10px 24px -8px rgba(28,46,120,.15);
}
.mobile-menu.open{display:block}
.mobile-menu ul{list-style:none;padding:12px 0}
.mobile-menu li{border-bottom:1px solid var(--bg)}
.mobile-menu li:last-child{border-bottom:none}
.mobile-menu a{
  display:block;padding:16px 24px;font-weight:600;font-size:14px;
  letter-spacing:1.2px;text-transform:uppercase;color:var(--ink);
}
.mobile-menu a:hover,.mobile-menu a.active{color:var(--navy);background:var(--bg)}

/* ============================================================
   BUTTONS
   ============================================================ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:14px 24px;font-weight:700;font-size:12.5px;letter-spacing:1.5px;
  text-transform:uppercase;border-radius:4px;transition:all .18s;
  cursor:pointer;border:none;font-family:inherit;
  min-height:48px; /* touch target */
}
.btn-primary{background:var(--navy);color:var(--white)}
.btn-primary:hover,.btn-primary:focus{
  background:var(--navy-dark);transform:translateY(-1px);
  box-shadow:0 8px 20px -6px rgba(28,46,120,.5);
}
.btn-ghost{background:transparent;color:var(--navy);border:2px solid var(--navy)}
.btn-ghost:hover,.btn-ghost:focus{background:var(--navy);color:var(--white)}
.btn-telegram{background:var(--telegram);color:#fff}
.btn-telegram:hover,.btn-telegram:focus{background:#1b94d0}

/* ============================================================
   HERO
   ============================================================ */
.hero{
  position:relative;overflow:hidden;
  background:linear-gradient(140deg,#f6f7fb 0%,#eef0f8 60%,#dde2f1 100%);
  padding:56px 0 68px;
}
.hero::before{
  content:'';position:absolute;top:-100px;right:-120px;
  width:380px;height:380px;
  background:radial-gradient(circle,rgba(28,46,120,.14) 0%,transparent 70%);
  pointer-events:none;
}
.hero .wrap{position:relative;display:grid;gap:40px;align-items:center}

.eyebrow{
  display:inline-block;background:var(--navy);color:var(--white);
  font-size:10.5px;font-weight:700;letter-spacing:2px;
  padding:7px 14px;border-radius:3px;margin-bottom:22px;text-transform:uppercase;
}

.hero h1{
  font-size:38px;line-height:1.05;font-weight:900;
  letter-spacing:-.5px;text-transform:uppercase;color:var(--navy-dark);
}
.hero h1 .accent{color:var(--navy);display:block}

.hero p.lead{
  margin-top:22px;font-size:16px;color:var(--muted);
  line-height:1.6;max-width:560px;
}

.cta-row{margin-top:28px;display:flex;gap:12px;flex-wrap:wrap}
.cta-row .btn{flex:1 1 auto;min-width:calc(50% - 6px)}

/* hero product mock (pure CSS placeholder box) */
.product-mock{
  aspect-ratio:1/1;background:var(--white);border-radius:12px;
  box-shadow:0 20px 50px -18px rgba(20,31,85,.22);
  position:relative;display:flex;align-items:center;justify-content:center;
  overflow:hidden;max-width:420px;margin:0 auto;width:100%;
}
.product-mock::before{
  content:'';position:absolute;inset:0;background:
    linear-gradient(135deg,transparent 40%,rgba(28,46,120,.04) 100%),
    repeating-linear-gradient(45deg,transparent 0 20px,rgba(28,46,120,.025) 20px 21px);
}
.box{
  position:relative;width:62%;aspect-ratio:1.6/1;background:var(--navy);
  border-radius:4px;box-shadow:0 15px 30px -8px rgba(20,31,85,.4);
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  color:#fff;font-weight:800;letter-spacing:1.5px;font-size:18px;padding:14px;
}
.box::before{
  content:'';position:absolute;top:10px;left:10px;right:10px;height:4px;
  background:repeating-linear-gradient(90deg,#fff 0 3px,transparent 3px 7px);
  opacity:.5;
}
.box small{display:block;font-size:9px;letter-spacing:2.5px;font-weight:500;opacity:.8;margin-top:4px}

/* ============================================================
   SECTIONS (shared)
   ============================================================ */
section{padding:60px 0}
.section-head{text-align:center;margin-bottom:40px}
.section-head .eyebrow{background:transparent;color:var(--navy);border:1px solid var(--navy);margin-bottom:16px}
.section-head h2{
  font-size:28px;font-weight:800;text-transform:uppercase;
  letter-spacing:-.3px;color:var(--navy-dark);line-height:1.15;
}
.section-head p{color:var(--muted);margin-top:14px;max-width:620px;margin-inline:auto;font-size:15px;line-height:1.6}

/* ============================================================
   BENEFITS (3 cards)
   ============================================================ */
.benefits-grid{display:grid;grid-template-columns:1fr;gap:16px}
.benefit{
  text-align:center;padding:32px 24px;border:1px solid var(--border);
  border-radius:10px;transition:all .25s;background:var(--white);
}
.benefit:hover{
  border-color:var(--navy);transform:translateY(-3px);
  box-shadow:0 14px 30px -14px rgba(28,46,120,.25);
}
.benefit-icon{
  width:60px;height:60px;margin:0 auto 18px;
  background:linear-gradient(135deg,var(--navy),var(--navy-light));
  border-radius:50%;display:flex;align-items:center;justify-content:center;
  color:#fff;font-weight:800;font-size:24px;
}
.benefit h3{
  font-size:15px;text-transform:uppercase;letter-spacing:1.2px;
  font-weight:800;margin-bottom:12px;color:var(--navy-dark);
}
.benefit p{color:var(--muted);font-size:14px;line-height:1.65}

/* ============================================================
   PRODUCTS (card grid, 1col mobile → 3col desktop)
   ============================================================ */
.products-section{background:var(--bg)}
.products-grid{display:grid;grid-template-columns:1fr;gap:20px}
.product-card{
  background:var(--white);border-radius:12px;overflow:hidden;
  box-shadow:0 4px 18px -8px rgba(0,0,0,.08);transition:all .25s;
  display:flex;flex-direction:column;
}
.product-card:hover{
  transform:translateY(-4px);box-shadow:0 18px 40px -16px rgba(28,46,120,.3);
}
.product-visual{
  aspect-ratio:16/9;
  background:linear-gradient(135deg,#f6f7fb,#e5e8f3);
  position:relative;display:flex;align-items:center;justify-content:center;overflow:hidden;
}
.product-visual::after{
  content:'';position:absolute;inset:0;
  background:repeating-linear-gradient(135deg,transparent 0 14px,rgba(28,46,120,.03) 14px 15px);
}
.badge{
  position:absolute;top:12px;left:12px;background:var(--gold);
  color:var(--navy-dark);font-size:10px;font-weight:800;letter-spacing:1.2px;
  padding:5px 10px;border-radius:3px;text-transform:uppercase;z-index:2;
}
.product-box-mock{
  position:relative;width:56%;aspect-ratio:1.5/1;background:var(--navy);
  border-radius:3px;box-shadow:0 10px 24px -8px rgba(20,31,85,.4);
  color:#fff;display:flex;flex-direction:column;align-items:center;justify-content:center;
  padding:12px;text-align:center;
}
.product-box-mock b{font-size:13px;letter-spacing:1.2px;font-weight:800;line-height:1.1}
.product-box-mock small{font-size:9px;letter-spacing:1.5px;margin-top:3px;opacity:.75}
.dna{
  position:absolute;top:8px;left:8px;right:8px;height:3px;
  background:repeating-linear-gradient(90deg,#fff 0 3px,transparent 3px 6px);opacity:.4;
}
.product-body{padding:24px;flex:1;display:flex;flex-direction:column}
.product-body h3{
  font-size:19px;font-weight:800;letter-spacing:.3px;
  margin-bottom:6px;color:var(--navy-dark);text-transform:uppercase;line-height:1.15;
}
.product-body .subtitle{
  color:var(--muted);font-size:12px;letter-spacing:.8px;
  text-transform:uppercase;margin-bottom:14px;
}
.product-body p{color:var(--muted);font-size:14px;line-height:1.6;margin-bottom:20px;flex:1}
.pack-options{display:flex;gap:6px;margin-bottom:20px;flex-wrap:wrap}
.pack-opt{
  padding:9px 12px;border:1.5px solid var(--border);border-radius:4px;
  font-size:12px;font-weight:700;letter-spacing:.3px;cursor:pointer;
  transition:all .15s;background:var(--white);
  flex:1 1 56px;min-width:0;text-align:center;white-space:nowrap;
}
.pack-opt:hover,.pack-opt.active{border-color:var(--navy);background:var(--navy);color:var(--white)}
.product-cta{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 20px;background:var(--telegram);color:#fff;font-weight:700;
  font-size:12.5px;letter-spacing:1.3px;text-transform:uppercase;
  border-radius:4px;transition:background .15s;min-height:48px;
}
.product-cta:hover{background:#1b94d0}
.product-cta svg{width:16px;height:16px;flex-shrink:0}

/* ============================================================
   FOOTER
   ============================================================ */
footer{background:#0e1740;color:#9aa3c0;padding:48px 0 24px;font-size:13px}
.footer-grid{
  display:grid;grid-template-columns:1fr;gap:28px;margin-bottom:32px;
}
footer h4{
  color:#fff;font-size:11px;letter-spacing:1.4px;text-transform:uppercase;
  margin-bottom:14px;font-weight:800;
}
footer ul{list-style:none;line-height:2.1}
footer a:hover{color:var(--gold)}
footer .logo-pill{display:inline-block;margin-bottom:16px}
.footer-about p{color:#9aa3c0;line-height:1.7;margin-top:8px;font-size:13px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);padding-top:18px;
  display:flex;flex-direction:column;gap:6px;font-size:11.5px;color:#6c7698;
  text-align:center;
}

/* ============================================================
   FLOATING TELEGRAM FAB
   ============================================================ */
.tg-fab{
  position:fixed;right:14px;bottom:14px;z-index:70;
  background:var(--telegram);color:#fff;padding:12px 18px;border-radius:999px;
  font-weight:700;font-size:13px;letter-spacing:.4px;
  display:inline-flex;align-items:center;gap:8px;
  box-shadow:0 10px 24px -8px rgba(42,171,238,.6);transition:transform .18s;
  max-width:calc(100% - 28px);
}
.tg-fab:hover{transform:translateY(-2px)}
.tg-fab svg{width:18px;height:18px;flex-shrink:0}

/* ============================================================
   CONTENT PAGES (guides, product detail, legal)
   ============================================================ */
.page-header{
  background:var(--bg);padding:48px 0 32px;border-bottom:1px solid var(--border);
}
.breadcrumbs{
  font-size:12px;color:var(--muted);margin-bottom:12px;letter-spacing:.3px;
}
.breadcrumbs a:hover{color:var(--navy)}
.breadcrumbs span{margin:0 8px;color:var(--border)}
.page-header h1{
  font-size:30px;font-weight:800;color:var(--navy-dark);line-height:1.15;
  letter-spacing:-.3px;max-width:800px;
}
.page-header .lead{color:var(--muted);font-size:16px;line-height:1.6;margin-top:12px;max-width:720px}

.prose{
  padding:40px 0 60px;max-width:760px;margin:0 auto;
  font-size:16px;line-height:1.75;color:var(--ink);
}
.prose h2{
  font-size:24px;font-weight:800;color:var(--navy-dark);
  margin:38px 0 14px;line-height:1.2;letter-spacing:-.2px;
}
.prose h3{font-size:19px;font-weight:700;color:var(--navy-dark);margin:28px 0 10px}
.prose p{margin-bottom:16px}
.prose ul,.prose ol{margin:0 0 18px 20px}
.prose li{margin-bottom:8px}
.prose a{color:var(--navy);border-bottom:1px solid currentColor}
.prose a:hover{color:var(--navy-dark)}
.prose table{
  width:100%;border-collapse:collapse;margin:18px 0;font-size:14px;
}
.prose th,.prose td{
  padding:10px 12px;border:1px solid var(--border);text-align:left;
}
.prose th{background:var(--bg);font-weight:700}
.prose .callout{
  background:var(--bg);border-left:4px solid var(--navy);
  padding:16px 20px;margin:22px 0;border-radius:0 6px 6px 0;
}

/* Product detail hero */
.product-detail{
  display:grid;grid-template-columns:1fr;gap:30px;padding:36px 0 50px;
}
.product-detail .visual{
  aspect-ratio:1/1;background:linear-gradient(135deg,#f6f7fb,#e5e8f3);
  border-radius:14px;display:flex;align-items:center;justify-content:center;
  position:relative;overflow:hidden;
}
.product-detail .visual::after{
  content:'';position:absolute;inset:0;
  background:repeating-linear-gradient(135deg,transparent 0 14px,rgba(28,46,120,.04) 14px 15px);
}
.product-detail .visual .product-box-mock{
  width:65%;aspect-ratio:1.4/1;font-size:16px;
}
.product-detail .visual .product-box-mock b{font-size:18px}
.product-detail h1{
  font-size:30px;font-weight:800;color:var(--navy-dark);
  letter-spacing:-.3px;line-height:1.15;margin-bottom:8px;text-transform:uppercase;
}
.product-detail .subtitle{color:var(--navy);font-size:13px;font-weight:700;letter-spacing:1px;text-transform:uppercase;margin-bottom:16px}
.product-detail .lead{color:var(--muted);font-size:16px;line-height:1.65;margin-bottom:24px}
.product-detail .spec-table{margin:18px 0 26px}
.product-detail .spec-table dt{
  font-size:11px;font-weight:700;color:var(--muted);letter-spacing:1px;
  text-transform:uppercase;margin-top:12px;
}
.product-detail .spec-table dd{color:var(--ink);font-size:15px;font-weight:600;margin-top:2px}

/* Lab tests, legal, etc. — reuse .prose */

/* ============================================================
   BREAKPOINTS — proper mobile-first
   ============================================================ */

/* ≥ 560px — bigger phone / small tablet */
@media (min-width:560px){
  .wrap{padding:0 24px}
  .hero{padding:72px 0 86px}
  .hero h1{font-size:46px}
  .cta-row .btn{flex:0 0 auto;min-width:auto}
  .benefits-grid{grid-template-columns:repeat(2,1fr);gap:18px}
  .products-grid{gap:22px}
  .section-head h2{font-size:32px}
  .page-header{padding:56px 0 40px}
  .page-header h1{font-size:36px}
  .product-detail h1{font-size:34px}
}

/* ≥ 720px — tablet / small laptop (nav shows, 2-col products) */
@media (min-width:720px){
  .wrap{padding:0 28px}
  nav.main{display:flex}
  nav.main ul{display:flex;gap:30px;list-style:none;font-weight:600;font-size:12.5px;letter-spacing:1.4px;text-transform:uppercase}
  nav.main a{position:relative;padding:4px 0;transition:color .15s}
  nav.main a:hover,nav.main a.active{color:var(--navy)}
  .nav-toggle{display:none}
  .mobile-menu{display:none !important}
  header.main .wrap{height:80px}
  .hero{padding:80px 0 100px}
  .hero .wrap{grid-template-columns:1.1fr .9fr;gap:50px}
  .hero h1{font-size:52px}
  .hero p.lead{font-size:17px}
  .benefits-grid{grid-template-columns:repeat(3,1fr);gap:22px}
  .products-grid{grid-template-columns:repeat(2,1fr);gap:24px}
  .product-visual{aspect-ratio:4/3}
  .section-head{margin-bottom:60px}
  .section-head h2{font-size:38px}
  section{padding:88px 0}
  .footer-grid{grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px}
  .footer-bottom{flex-direction:row;justify-content:space-between;text-align:left}
  .product-detail{grid-template-columns:1fr 1fr;gap:50px;padding:50px 0 70px}
  .page-header h1{font-size:42px}
  .product-detail h1{font-size:40px}
  .tg-fab{right:22px;bottom:22px;padding:14px 22px;font-size:14px}
}

/* ≥ 1024px — real desktop (3-col products) */
@media (min-width:1024px){
  .hero h1{font-size:60px}
  .section-head h2{font-size:42px}
  .products-grid{grid-template-columns:repeat(3,1fr)}
  .product-detail h1{font-size:46px}
  .page-header h1{font-size:48px}
}

/* Article byline on bridge + product pages */
.article-meta{display:inline-block;margin:4px 0 0;padding:8px 14px;background:rgba(28,46,120,.05);border-left:3px solid var(--navy,#1C2E78);border-radius:4px;font-size:14px;color:var(--muted,#5b6478);letter-spacing:.1px}
.article-meta strong{color:var(--ink,#1C2E78);font-weight:600}
@media (max-width:600px){.article-meta{display:block;font-size:13px}}

/* CoA figure on /lab-testovi/ */
.coa-figure{margin:28px 0 36px;text-align:center}
.coa-figure a{display:inline-block;border:1px solid var(--line,#e5e8ef);border-radius:8px;overflow:hidden;background:#fff;box-shadow:0 2px 12px rgba(0,0,0,.06);transition:transform .15s,box-shadow .15s;max-width:100%}
.coa-figure a:hover{transform:translateY(-2px);box-shadow:0 6px 20px rgba(0,0,0,.08)}
.coa-figure img{display:block;width:100%;max-width:560px;height:auto}
.coa-figure figcaption{font-size:13.5px;color:var(--muted,#5b6478);margin-top:12px;font-style:italic}
.tldr-card{
  background:linear-gradient(135deg,rgba(28,46,120,.04) 0%,rgba(28,46,120,.08) 100%);
  border-left:4px solid var(--navy);
  border-radius:0 10px 10px 0;
  padding:22px 26px;
  margin:28px 0 36px;
}
.tldr-card strong:first-child{
  display:block;font-size:12px;letter-spacing:1.4px;text-transform:uppercase;
  color:var(--navy);font-weight:800;margin-bottom:10px;
}
.tldr-card p{margin-bottom:12px;font-size:15.5px;line-height:1.65}
.tldr-card p:last-child{margin-bottom:0}

.faq-list{display:flex;flex-direction:column;gap:10px;margin:20px 0 30px}
.faq-item{
  border:1px solid var(--line,#e5e8ef);
  border-radius:8px;
  background:var(--white,#fff);
  overflow:hidden;
  transition:box-shadow .15s;
}
.faq-item[open]{box-shadow:0 2px 8px rgba(0,0,0,.04)}
.faq-item summary{
  padding:16px 20px;
  font-weight:600;
  font-size:15.5px;
  color:var(--ink,#1a1f2e);
  cursor:pointer;
  list-style:none;
  position:relative;
  padding-right:48px;
  line-height:1.4;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";
  position:absolute;right:20px;top:50%;transform:translateY(-50%);
  font-size:22px;font-weight:300;color:var(--navy);
  transition:transform .2s;
}
.faq-item[open] summary::after{content:"−"}
.faq-item > div{
  padding:0 20px 18px;
  font-size:15px;
  color:var(--ink,#1a1f2e);
  line-height:1.65;
}

.poredjenje-list{list-style:none;margin:0 0 30px;padding:0;display:flex;flex-direction:column;gap:14px}
.poredjenje-list li{margin:0}
.poredjenje-list a{
  display:block;
  padding:22px 24px;
  background:var(--white,#fff);
  border:1px solid var(--line,#e5e8ef);
  border-left:4px solid var(--navy);
  border-radius:0 10px 10px 0;
  transition:transform .15s,box-shadow .15s;
  border-bottom:1px solid var(--line,#e5e8ef);
}
.poredjenje-list a:hover{
  transform:translateX(3px);
  box-shadow:0 4px 12px rgba(0,0,0,.05);
}
.poredjenje-list strong{
  display:block;font-size:18px;font-weight:700;color:var(--navy);margin-bottom:6px;
}
.poredjenje-list span{
  display:block;font-size:14.5px;color:var(--muted,#5b6478);line-height:1.55;
}

.cta-strip{
  background:var(--navy);
  color:#fff;
  padding:40px 0;
  margin-top:20px;
}
.cta-strip .wrap{
  display:flex;flex-direction:column;gap:24px;align-items:flex-start;
}
.cta-strip h3{
  font-size:22px;font-weight:700;color:#fff;margin-bottom:8px;
}
.cta-strip p{
  font-size:15px;opacity:.9;margin:0;color:#fff;
}
.cta-strip-btns{display:flex;flex-direction:column;gap:12px;width:100%}
.cta-strip-btns .btn{width:100%;justify-content:center;text-align:center}
.cta-strip-btns .btn-primary{background:#fff;color:var(--navy)}
.cta-strip-btns .btn-primary:hover{background:#f1f3f8}
.cta-strip-btns .btn-ghost{color:#fff;border-color:rgba(255,255,255,.4)}
.cta-strip-btns .btn-ghost:hover{background:rgba(255,255,255,.1);color:#fff;border-color:#fff}

@media (min-width:720px){
  .cta-strip .wrap{flex-direction:row;align-items:center;justify-content:space-between;gap:36px}
  .cta-strip-btns{flex-direction:row;width:auto;flex-shrink:0}
  .cta-strip-btns .btn{width:auto}
}