/* ===== BGT Innovations — brand system ===== */
:root{
  --black:#0a0a0b;
  --panel:#111114;
  --panel-2:#17171b;
  --line:rgba(198,164,92,0.18);
  --gold:#c6a45c;
  --gold-2:#e6c884;
  --gold-soft:rgba(198,164,92,0.10);
  --text:#f4f2ec;
  --muted:#9a978f;
  --muted-2:#6f6d67;
  --radius:14px;
  --max:1140px;
  --serif:"Cormorant Garamond",Georgia,"Times New Roman",serif;
  --sans:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--black);
  color:var(--text);
  font-family:var(--sans);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}

.container{max-width:var(--max);margin:0 auto;padding:0 24px}

.eyebrow{
  font-size:.72rem;letter-spacing:.34em;text-transform:uppercase;
  color:var(--gold);font-weight:600;
}
h1,h2,h3{font-family:var(--serif);font-weight:600;line-height:1.1;letter-spacing:.01em}
h1{font-size:clamp(2.6rem,6vw,4.4rem)}
h2{font-size:clamp(2rem,4vw,3rem)}
h3{font-size:1.35rem}
.gold{color:var(--gold-2)}
p.lead{font-size:1.18rem;color:#d9d6ce;max-width:60ch}

/* ===== Header ===== */
header.site{
  position:sticky;top:0;z-index:40;
  background:rgba(10,10,11,0.82);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;justify-content:space-between;height:74px}
.brand{display:flex;align-items:baseline;gap:.55rem;font-family:var(--serif)}
.brand .mark{
  font-size:1.7rem;font-weight:700;color:var(--gold-2);letter-spacing:.02em;
}
.brand .sub{font-size:.68rem;letter-spacing:.32em;text-transform:uppercase;color:var(--muted);font-family:var(--sans);font-weight:600}
.nav-links{display:flex;gap:2rem;align-items:center}
.nav-links a{font-size:.86rem;color:var(--muted);letter-spacing:.02em;transition:color .2s}
.nav-links a:hover,.nav-links a.active{color:var(--text)}
.nav-cta{
  border:1px solid var(--gold);color:var(--gold-2)!important;
  padding:.55rem 1.15rem;border-radius:999px;font-weight:600;
  transition:background .2s,color .2s;
}
.nav-cta:hover{background:var(--gold);color:var(--black)!important}
.menu-btn{display:none;background:none;border:0;color:var(--gold-2);font-size:1.5rem;cursor:pointer}

/* ===== Buttons ===== */
.btn{
  display:inline-flex;align-items:center;gap:.5rem;
  padding:.85rem 1.7rem;border-radius:999px;font-weight:600;font-size:.92rem;
  letter-spacing:.02em;transition:transform .2s,box-shadow .2s,background .2s;
  cursor:pointer;border:1px solid transparent;
}
.btn-gold{background:linear-gradient(135deg,var(--gold-2),var(--gold));color:#1a1408;box-shadow:0 8px 30px rgba(198,164,92,0.25)}
.btn-gold:hover{transform:translateY(-2px);box-shadow:0 12px 40px rgba(198,164,92,0.35)}
.btn-ghost{border-color:var(--line);color:var(--text)}
.btn-ghost:hover{border-color:var(--gold);color:var(--gold-2)}

/* ===== Hero ===== */
.hero{
  position:relative;padding:clamp(70px,12vw,140px) 0 clamp(60px,9vw,110px);
  background:
    radial-gradient(900px 500px at 78% 8%,rgba(198,164,92,0.10),transparent 60%),
    radial-gradient(700px 500px at 10% 100%,rgba(198,164,92,0.06),transparent 55%);
  overflow:hidden;
}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center}
.hero h1{margin:1.1rem 0 1.4rem}
.hero .cta-row{display:flex;gap:1rem;flex-wrap:wrap;margin-top:2rem}
.hero-badges{display:flex;gap:1.5rem;flex-wrap:wrap;margin-top:2.6rem;padding-top:1.8rem;border-top:1px solid var(--line)}
.hero-badge{font-size:.78rem;color:var(--muted)}
.hero-badge b{display:block;font-family:var(--serif);font-size:1.5rem;color:var(--gold-2);font-weight:600}

.vial-card{
  position:relative;border:1px solid var(--line);border-radius:22px;
  background:linear-gradient(160deg,var(--panel-2),#0c0c0e);
  padding:38px;text-align:center;
  box-shadow:0 40px 90px rgba(0,0,0,0.6);
}
.vial-card .ring{
  width:210px;height:210px;margin:0 auto 22px;border-radius:50%;
  background:radial-gradient(circle at 50% 35%,rgba(198,164,92,0.22),transparent 62%);
  display:flex;align-items:center;justify-content:center;
  border:1px solid var(--line);
}
.vial-card .ring span{font-family:var(--serif);font-size:3.4rem;color:var(--gold-2)}
.vial-card h3{margin-bottom:.4rem}
.vial-card .ruo{
  display:inline-block;margin-top:1rem;font-size:.68rem;letter-spacing:.24em;
  text-transform:uppercase;color:var(--gold);border:1px solid var(--line);
  padding:.4rem .85rem;border-radius:999px;
}

/* ===== Sections ===== */
section.block{padding:clamp(60px,9vw,110px) 0}
.section-head{max-width:640px;margin-bottom:56px}
.section-head h2{margin:.8rem 0 1rem}
.section-head p{color:var(--muted)}

.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.card{
  background:linear-gradient(165deg,var(--panel),#0b0b0d);
  border:1px solid var(--line);border-radius:var(--radius);
  padding:32px;transition:transform .25s,border-color .25s;
}
.card:hover{transform:translateY(-4px);border-color:rgba(198,164,92,0.4)}
.card .ico{
  width:46px;height:46px;border-radius:11px;display:flex;align-items:center;justify-content:center;
  background:var(--gold-soft);border:1px solid var(--line);color:var(--gold-2);
  font-size:1.2rem;margin-bottom:18px;
}
.card h3{margin-bottom:.5rem}
.card p{color:var(--muted);font-size:.95rem}

/* ===== Alt band ===== */
.band{background:linear-gradient(180deg,#0c0c0e,#101013);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}

/* ===== Spec list ===== */
.specs{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.spec{background:var(--panel);padding:22px 26px}
.spec .k{font-size:.72rem;letter-spacing:.2em;text-transform:uppercase;color:var(--gold);margin-bottom:.3rem}
.spec .v{color:var(--text);font-size:1.02rem}

/* ===== Product cards ===== */
.prod-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.prod{
  background:linear-gradient(165deg,var(--panel),#0b0b0d);border:1px solid var(--line);
  border-radius:var(--radius);overflow:hidden;transition:transform .25s,border-color .25s;
}
.prod:hover{transform:translateY(-4px);border-color:rgba(198,164,92,0.4)}
.prod .thumb{
  aspect-ratio:1/1;display:flex;align-items:center;justify-content:center;
  background:radial-gradient(circle at 50% 40%,rgba(198,164,92,0.14),#0a0a0b 65%);
  border-bottom:1px solid var(--line);
}
.prod .thumb span{font-family:var(--serif);font-size:2.6rem;color:var(--gold-2)}
.prod .body{padding:22px 24px}
.prod .tag{font-size:.66rem;letter-spacing:.2em;text-transform:uppercase;color:var(--gold);}
.prod h3{margin:.4rem 0 .5rem;font-size:1.2rem}
.prod p{color:var(--muted);font-size:.88rem;min-height:44px}
.prod .ruo-mini{margin-top:.9rem;font-size:.66rem;letter-spacing:.2em;text-transform:uppercase;color:var(--muted-2)}

/* ===== CTA strip ===== */
.cta-strip{
  text-align:center;border:1px solid var(--line);border-radius:22px;
  background:
    radial-gradient(600px 300px at 50% 0%,rgba(198,164,92,0.12),transparent 60%),
    linear-gradient(160deg,var(--panel-2),#0b0b0d);
  padding:clamp(44px,7vw,80px) 28px;
}
.cta-strip h2{margin:.7rem 0 1.1rem}
.cta-strip p{color:var(--muted);max-width:52ch;margin:0 auto 2rem}

/* ===== Contact ===== */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
.field{margin-bottom:18px}
.field label{display:block;font-size:.78rem;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin-bottom:.5rem}
.field input,.field textarea,.field select{
  width:100%;background:var(--panel);border:1px solid var(--line);border-radius:10px;
  padding:.85rem 1rem;color:var(--text);font-family:var(--sans);font-size:.95rem;
}
.field input:focus,.field textarea:focus,.field select:focus{outline:none;border-color:var(--gold)}
.info-row{display:flex;gap:.9rem;padding:18px 0;border-bottom:1px solid var(--line)}
.info-row .ico{color:var(--gold-2);font-size:1.1rem;flex-shrink:0}
.info-row .k{font-size:.72rem;letter-spacing:.18em;text-transform:uppercase;color:var(--gold)}
.info-row .v{color:var(--text)}

/* ===== Compliance callout ===== */
.compliance-note{
  border:1px solid var(--line);border-left:3px solid var(--gold);
  background:var(--gold-soft);border-radius:10px;padding:22px 26px;
  color:var(--muted);font-size:.9rem;
}
.compliance-note b{color:var(--gold-2)}

/* ===== Footer ===== */
footer.site{border-top:1px solid var(--line);background:#08080a;padding:64px 0 34px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px;margin-bottom:44px}
.foot-grid h4{font-size:.74rem;letter-spacing:.2em;text-transform:uppercase;color:var(--gold);margin-bottom:1.1rem}
.foot-grid a{display:block;color:var(--muted);font-size:.9rem;padding:.3rem 0;transition:color .2s}
.foot-grid a:hover{color:var(--text)}
.foot-brand .mark{font-family:var(--serif);font-size:1.6rem;color:var(--gold-2);font-weight:700}
.foot-brand p{color:var(--muted);font-size:.88rem;margin-top:.8rem;max-width:34ch}
.foot-bottom{border-top:1px solid var(--line);padding-top:26px;display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}
.foot-bottom p{color:var(--muted-2);font-size:.78rem;max-width:80ch}

/* ===== Compliance Gate ===== */
#gate{
  position:fixed;inset:0;z-index:100;display:flex;align-items:center;justify-content:center;
  padding:24px;background:rgba(6,6,7,0.94);backdrop-filter:blur(10px);
}
#gate .modal{
  max-width:520px;width:100%;background:linear-gradient(165deg,var(--panel-2),#0a0a0c);
  border:1px solid var(--line);border-radius:18px;padding:44px 40px;text-align:center;
  box-shadow:0 40px 120px rgba(0,0,0,0.7);
}
#gate .mark{font-family:var(--serif);font-size:2.2rem;color:var(--gold-2);font-weight:700;letter-spacing:.02em}
#gate .sub{font-size:.66rem;letter-spacing:.32em;text-transform:uppercase;color:var(--muted);margin-top:.2rem}
#gate h2{font-size:1.7rem;margin:1.6rem 0 1rem}
#gate p{color:var(--muted);font-size:.92rem;margin-bottom:1.2rem}
#gate .ack{
  text-align:left;background:var(--black);border:1px solid var(--line);border-radius:10px;
  padding:16px 18px;margin-bottom:1rem;display:flex;gap:.8rem;align-items:flex-start;cursor:pointer;
}
#gate .ack input{margin-top:.28rem;width:18px;height:18px;accent-color:var(--gold);flex-shrink:0}
#gate .ack span{font-size:.84rem;color:var(--muted);line-height:1.5}
#gate .gate-btns{display:flex;gap:.8rem;margin-top:1.4rem}
#gate .btn{flex:1;justify-content:center}
#gate .decline{background:none;border:1px solid var(--line);color:var(--muted)}
#gate .decline:hover{border-color:var(--muted);color:var(--text)}
#gate .fineprint{margin-top:1.4rem;font-size:.72rem;color:var(--muted-2);line-height:1.5}
.gate-locked{overflow:hidden;height:100vh}
#gate .btn-gold[disabled]{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none}

/* ===== Login Wall ===== */
.lg-locked{overflow:hidden;height:100vh}
#login-gate{
  position:fixed;inset:0;z-index:200;display:flex;align-items:center;justify-content:center;
  padding:24px;background:
    radial-gradient(700px 500px at 50% -10%,rgba(198,164,92,0.10),transparent 60%),
    rgba(6,6,7,0.98);
  backdrop-filter:blur(14px);
}
#login-gate .lg-modal{
  max-width:430px;width:100%;background:linear-gradient(165deg,var(--panel-2),#0a0a0c);
  border:1px solid var(--line);border-radius:18px;padding:42px 38px 34px;text-align:center;
  box-shadow:0 40px 120px rgba(0,0,0,0.75);
}
#login-gate .lg-brand{display:flex;align-items:baseline;justify-content:center;gap:.5rem;margin-bottom:1.6rem}
#login-gate .lg-mark{font-family:var(--serif);font-size:2rem;color:var(--gold-2);font-weight:700;letter-spacing:.02em}
#login-gate .lg-sub{font-size:.64rem;letter-spacing:.32em;text-transform:uppercase;color:var(--muted);font-weight:600}
#login-gate .lg-lock{
  width:56px;height:56px;margin:0 auto 1.1rem;border-radius:50%;
  display:flex;align-items:center;justify-content:center;font-size:1.5rem;
  background:var(--gold-soft);border:1px solid var(--line);
}
#login-gate h2{font-size:1.6rem;margin-bottom:.6rem}
#login-gate .lg-intro{color:var(--muted);font-size:.9rem;margin-bottom:1.6rem;line-height:1.55}
#login-gate .lg-field{text-align:left;margin-bottom:1rem}
#login-gate .lg-field label{display:block;font-size:.72rem;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin-bottom:.45rem}
#login-gate .lg-field input{
  width:100%;background:var(--black);border:1px solid var(--line);border-radius:10px;
  padding:.85rem 1rem;color:var(--text);font-family:var(--sans);font-size:.95rem;
}
#login-gate .lg-field input:focus{outline:none;border-color:var(--gold)}
#login-gate .lg-error{
  display:none;text-align:left;background:rgba(180,60,60,0.10);border:1px solid rgba(200,80,80,0.4);
  color:#f0b4b4;border-radius:9px;padding:.7rem .9rem;font-size:.84rem;margin-bottom:1rem;
}
#login-gate .lg-btn{
  width:100%;justify-content:center;display:inline-flex;align-items:center;
  padding:.9rem 1.7rem;border-radius:10px;font-weight:600;font-size:.95rem;cursor:pointer;
  border:1px solid transparent;background:linear-gradient(135deg,var(--gold-2),var(--gold));
  color:#1a1408;box-shadow:0 8px 30px rgba(198,164,92,0.22);transition:transform .15s,box-shadow .2s;
}
#login-gate .lg-btn:hover{transform:translateY(-1px)}
#login-gate .lg-btn:disabled{opacity:.6;cursor:default;transform:none}
#login-gate .lg-links{margin-top:1.3rem;font-size:.82rem;color:var(--muted)}
#login-gate .lg-links a{color:var(--gold-2)}
#login-gate .lg-links a:hover{text-decoration:underline}
#login-gate .lg-dot{margin:0 .6rem;color:var(--muted-2)}
#login-gate .lg-note{
  display:none;margin-top:1.1rem;text-align:left;background:var(--gold-soft);
  border:1px solid var(--line);border-left:3px solid var(--gold);border-radius:9px;
  padding:.75rem .9rem;font-size:.82rem;color:var(--muted);line-height:1.5;
}
#login-gate .lg-fine{margin-top:1.5rem;font-size:.68rem;color:var(--muted-2);line-height:1.5}

/* ===== Responsive ===== */
@media(max-width:900px){
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .vial-card{max-width:420px;margin:0 auto}
  .grid-3,.prod-grid{grid-template-columns:1fr 1fr}
  .contact-grid{grid-template-columns:1fr;gap:32px}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:640px){
  .nav-links{
    position:absolute;top:74px;left:0;right:0;flex-direction:column;gap:0;
    background:var(--panel);border-bottom:1px solid var(--line);padding:12px 24px;display:none;
  }
  .nav-links.open{display:flex}
  .nav-links a{padding:.9rem 0;width:100%;border-bottom:1px solid var(--line)}
  .nav-links .nav-cta{margin:.7rem 0;text-align:center}
  .menu-btn{display:block}
  .grid-3,.grid-2,.prod-grid,.specs,.foot-grid{grid-template-columns:1fr}
  .hero-badges{gap:1.2rem}
}