@font-face{font-family:"Exo 2";font-style:italic;font-weight:900;font-display:swap;src:url(/assets/fonts/exo-2-latin-900-italic.woff2) format("woff2")}
@font-face{font-family:"Exo 2";font-style:italic;font-weight:800;font-display:swap;src:url(/assets/fonts/exo-2-latin-800-italic.woff2) format("woff2")}
/* Colors sampled from SK BioSupply product label */
:root{--ink:#050409;--navy:#0e0520;--deep:#30066d;--purple:#7527d1;--glow:#a74fed;--lav:#9e8bc1;--lav2:#bdb5d7;--silver:#d4d3dd;--mist:#efedf1;--white:#ffffff;
--text:#14101f;--muted:#55506a;--line:#e2e3e6;--r:14px;--display:"Exo 2","Arial Black",Impact,sans-serif}
*{box-sizing:border-box}html,body{margin:0}
body{font:16px/1.6 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;background:var(--white);color:var(--text)}
a{color:var(--purple)}a:hover{color:var(--deep)}.wrap{max-width:1080px;margin:0 auto;padding:0 18px}
h1,h2,.display{font-family:var(--display);font-style:italic;font-weight:900;letter-spacing:.2px;text-transform:uppercase}
h1{font-size:clamp(28px,7vw,46px);line-height:1.05;margin:.2em 0 .45em;color:var(--navy)}
h2{font-size:clamp(20px,5vw,28px);margin-top:1.6em;color:var(--navy)}h3{color:var(--text);margin:0 0 4px}
.hex{background-color:var(--navy);background-image:radial-gradient(ellipse at 85% 0%,rgba(167,79,237,.35),transparent 55%),url(/assets/hex.svg);background-size:auto,56px 97px}
.ruo-banner{background:var(--ink);color:var(--silver);font-size:12px;line-height:1.45;padding:8px 18px;text-align:center;border-bottom:1px solid var(--deep)}
.site-header{position:sticky;top:0;z-index:10;background-color:var(--navy);background-image:linear-gradient(90deg,rgba(117,39,209,.25),transparent 60%),url(/assets/hex.svg);background-size:auto,56px 97px;border-bottom:2px solid var(--purple);box-shadow:0 2px 18px rgba(117,39,209,.35)}
.hdr{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px;padding-top:12px;padding-bottom:12px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--white)}
.brand .sk{font-family:var(--display);font-style:italic;font-weight:900;font-size:34px;line-height:1;color:var(--white);text-shadow:0 0 12px rgba(167,79,237,.9),0 0 2px var(--glow)}
.brand .bar{width:2px;height:34px;background:linear-gradient(var(--glow),var(--purple));box-shadow:0 0 8px var(--glow)}
.brand .wm{display:flex;flex-direction:column;line-height:1.05}
.brand .bio{font-family:var(--display);font-style:italic;font-weight:800;font-size:19px;letter-spacing:1px;color:var(--white)}
.brand .tagline{font-size:9.5px;letter-spacing:1.6px;text-transform:uppercase;color:var(--lav2);margin-top:3px}
nav{display:flex;gap:16px;flex-wrap:wrap}nav a{color:var(--silver);text-decoration:none;font-size:14px;font-weight:600;letter-spacing:.4px;text-transform:uppercase}
nav a[aria-current],nav a:hover{color:var(--white);text-shadow:0 0 10px var(--glow);border-bottom:2px solid var(--glow)}
main{padding:28px 18px 48px}
.hero.dark{margin:-28px -18px 8px;padding:40px 18px 34px;color:var(--white);background-color:var(--navy);background-image:radial-gradient(ellipse at 90% 10%,rgba(167,79,237,.45),transparent 55%),radial-gradient(ellipse at 0% 100%,rgba(117,39,209,.3),transparent 50%),url(/assets/hex.svg);background-size:auto,auto,56px 97px;border-radius:0 0 22px 22px}
.hero.dark h1{color:var(--white);text-shadow:0 0 18px rgba(167,79,237,.55)}.hero.dark .lead{color:var(--lav2)}
.lead{color:var(--muted);font-size:18px}.muted{color:var(--muted);margin:.2em 0}.fine{color:var(--muted);font-size:12px}
.cta{display:flex;gap:10px;flex-wrap:wrap;margin-top:16px}
.btn{display:inline-block;background:linear-gradient(135deg,var(--purple),var(--deep));color:#fff;border:1px solid var(--purple);border-radius:10px;padding:11px 18px;font-weight:700;text-decoration:none;cursor:pointer;font-size:15px;letter-spacing:.3px;box-shadow:0 0 14px rgba(117,39,209,.35)}
.btn:hover{color:#fff;box-shadow:0 0 20px rgba(167,79,237,.6)}
.btn.ghost{background:transparent;color:var(--purple);box-shadow:none}.hero.dark .btn.ghost{color:var(--white);border-color:var(--lav)}
.btn.sm{padding:6px 10px;font-size:13px}.btn:disabled{opacity:.35;cursor:not-allowed;box-shadow:none}
.grid{display:grid;grid-template-columns:1fr;gap:14px}@media(min-width:640px){.grid{grid-template-columns:1fr 1fr}}@media(min-width:960px){.grid{grid-template-columns:repeat(3,1fr)}}
.card{position:relative;display:block;background:var(--white);border:1px solid var(--line);border-left:4px solid var(--purple);border-radius:var(--r);padding:16px;color:var(--text);text-decoration:none;transition:box-shadow .15s,border-color .15s}
.card:hover{box-shadow:0 6px 22px rgba(117,39,209,.22);border-color:var(--glow)}
.card h3{font-family:var(--display);font-style:italic;font-weight:900;font-size:20px;color:var(--navy);text-transform:uppercase}
.mini{display:grid;grid-template-columns:auto 1fr;gap:2px 10px;font-size:13px;margin:10px 0}.mini dt{color:var(--muted)}.mini dd{margin:0;word-break:break-word}
.tag{display:inline-block;font-size:12px;padding:3px 10px;border-radius:999px;background:var(--navy);color:var(--white);font-weight:700;margin:4px 0 0;box-shadow:0 0 8px rgba(167,79,237,.45)}
.points{display:grid;gap:14px;margin-top:28px}@media(min-width:760px){.points{grid-template-columns:repeat(3,1fr)}}
.points div{background:var(--mist);border:1px solid var(--line);border-top:3px solid var(--purple);border-radius:var(--r);padding:16px}.points h3{color:var(--deep)}
table{width:100%;border-collapse:collapse;font-size:14px}th,td{text-align:left;padding:9px 8px;border-bottom:1px solid var(--line);vertical-align:top}
.spec{background:var(--white)}.spec th{color:var(--muted);width:40%;font-weight:500}
.coa th{color:var(--muted);font-weight:500;white-space:nowrap}.coa tr.grp th{color:var(--white);background:var(--navy);font-weight:700}
code{font-size:12px;color:var(--muted)}
.form{display:grid;gap:14px;max-width:560px}.form label{display:grid;gap:6px;font-size:14px;color:var(--muted);font-weight:600}
input,textarea{background:#fff;border:1px solid var(--silver);border-radius:10px;padding:11px;color:var(--text);font:inherit}
input:focus,textarea:focus{outline:2px solid var(--glow);border-color:var(--purple)}
.terms li{margin-bottom:10px}
.site-footer{background-color:var(--ink);background-image:url(/assets/hex.svg);background-size:56px 97px;color:var(--silver);padding:24px 0;font-size:14px;border-top:2px solid var(--purple)}
.site-footer a{color:var(--lav2)}.site-footer .fine{color:var(--lav)}
html.gated body{overflow:hidden}
.gate{position:fixed;inset:0;background:rgba(5,4,9,.82);display:flex;align-items:center;justify-content:center;padding:16px;z-index:100}
.gate[hidden]{display:none}
.gate-card{background:#fff;border-radius:18px;max-width:520px;width:100%;max-height:92vh;overflow:auto;border:1px solid var(--purple);box-shadow:0 0 40px rgba(167,79,237,.5)}
.gate-card h2{margin:0;padding:18px 22px;color:#fff;border-radius:17px 17px 0 0;background-color:var(--navy);background-image:radial-gradient(ellipse at 90% 0%,rgba(167,79,237,.5),transparent 60%),url(/assets/hex.svg);background-size:auto,56px 97px;text-shadow:0 0 12px rgba(167,79,237,.8)}
.gate-card>p,.gate-card form{padding:0 22px}.gate-card>p{margin:16px 0 4px}.gate-card form{padding-bottom:22px}
.chk{display:flex;gap:10px;align-items:flex-start;margin:12px 0;font-size:14px}
.chk input{margin-top:4px;width:18px;height:18px;flex:none;accent-color:var(--purple)}
.gate-actions{display:flex;gap:10px;margin-top:16px;flex-wrap:wrap}
@media(max-width:639px){.coa .opt{display:none}.coa th,.coa td{padding:9px 5px}.brand .sk{font-size:30px}.brand .bio{font-size:17px}}
.ruo-banner{font-size:11.5px;letter-spacing:1.2px;text-transform:uppercase;font-weight:600;padding:6px 12px}
.ruo-tag{display:inline-block;margin:10px 0 0;padding:3px 9px;border:1px solid var(--purple);border-radius:6px;font-size:10.5px;font-weight:700;letter-spacing:.8px;text-transform:uppercase;color:var(--deep);background:#f4eefc}
h1+.ruo-tag{margin:-6px 0 14px}
@media(min-width:760px){.points{grid-template-columns:repeat(2,1fr)}}
@media(max-width:639px){.ruo-banner{font-size:10px;letter-spacing:.5px}.ruo-tag{font-size:9.5px;letter-spacing:.3px;padding:3px 7px}}
.card.has-vial{display:flex;gap:14px;align-items:center}
.card .vial{flex:none;width:96px}.card .vial img,.vial-lg img{display:block;width:100%;height:auto;border-radius:10px}
.card-body{min-width:0}
.prod-head{display:flex;flex-direction:column;gap:10px}.vial-lg{width:min(260px,70vw);margin:0 auto}
@media(min-width:760px){.prod-head{flex-direction:row;align-items:center;gap:28px}.vial-lg{margin:0;width:240px}}

.brand .logo img{display:block;width:40px;height:40px;filter:drop-shadow(0 0 8px rgba(167,79,237,.7))}
.brand .skmark img{display:block;height:38px;width:auto;filter:drop-shadow(0 0 6px rgba(167,79,237,.6))}
@media(max-width:639px){.brand{gap:8px}.brand .logo img{width:34px;height:34px}.brand .skmark img{height:32px}}

/* vial display: never larger than native 240x440 source */
.card.has-vial{align-items:center;gap:14px}
.card .vial{flex:none;width:96px;height:118px;display:flex;align-items:center;justify-content:center;border-radius:12px;background:radial-gradient(ellipse at 50% 70%,rgba(117,39,209,.55),rgba(14,5,32,1) 70%),#050409;box-shadow:inset 0 0 0 1px rgba(167,79,237,.35);overflow:hidden}
.card .vial img{width:auto;height:104px;border-radius:0}
.prod-head{display:flex;flex-direction:row;align-items:center;gap:16px}
.vial-lg{flex:none;width:auto;margin:0;display:flex;align-items:center;justify-content:center;padding:8px 10px;border-radius:16px;background:radial-gradient(ellipse at 50% 70%,rgba(117,39,209,.6),rgba(14,5,32,1) 72%),#050409;box-shadow:inset 0 0 0 1px rgba(167,79,237,.35)}
.vial-lg img{width:auto;height:180px;border-radius:0}
@media(max-width:420px){.vial-lg img{height:160px}.prod-head h1{font-size:26px}}
@media(min-width:760px){.prod-head{gap:28px}.vial-lg img{height:200px}}
/* ---- Mobile compaction (≤480px); vial tiles unchanged ---- */
@media(max-width:480px){
  body{font-size:15px;line-height:1.55}
  h1{font-size:27px;margin:.15em 0 .35em}h2{font-size:19px;margin-top:1.2em}
  .lead{font-size:15.5px}
  .ruo-banner{font-size:9.5px;padding:4px 8px;letter-spacing:.4px}
  .hdr{padding-top:8px;padding-bottom:6px;gap:4px}
  .brand{gap:6px}.brand .logo img{width:28px;height:28px}.brand .skmark img{height:26px}
  .brand .bar{height:26px}.brand .bio{font-size:14.5px}.brand .tagline{font-size:7.5px;letter-spacing:1px;margin-top:2px}
  nav{gap:14px}nav a{font-size:13px}
  main{padding:18px 14px 32px}
  .hero.dark{margin:-18px -14px 6px;padding:24px 14px 22px;border-radius:0 0 16px 16px}
  .hero.dark h1{font-size:26px}
  .cta{margin-top:12px;gap:8px}
  .btn{padding:0 16px;min-height:44px;line-height:44px;font-size:14px}
  .btn.sm{min-height:36px;line-height:36px;padding:0 10px;font-size:12.5px}
  .grid{gap:10px}.card{padding:12px}.card h3{font-size:17px}
  .points{gap:10px;margin-top:18px}.points div{padding:12px}
  table{font-size:13px}th,td{padding:7px 6px}
  .form{gap:10px}.form label{font-size:13px;gap:4px}
  input{height:44px;padding:0 12px;font-size:15px}textarea{padding:10px 12px;font-size:15px}
  .site-footer{padding:16px 0;font-size:12.5px}.site-footer p{margin:.4em 0}
  .gate-card h2{font-size:20px;padding:14px 18px}.gate-card>p,.gate-card form{padding-left:18px;padding-right:18px}
  .chk{font-size:13px;margin:9px 0}
}
@media(max-width:480px){main{padding-top:22px}.hero.dark{margin-top:-22px;padding-top:28px}textarea{height:120px;min-height:0}}
/* ---- Light header redesign ---- */
.ruo-banner{background:var(--deep);color:#f1e9fc;border-bottom:0}
.site-header{background:#fff;background-image:none;border-bottom:2px solid var(--purple);box-shadow:0 4px 16px rgba(117,39,209,.14)}
.brand{gap:10px}
.brand .skmark img{height:40px;filter:none}
.brand .bar{width:2px;height:34px;background:var(--purple);box-shadow:none}
.brand .bio{color:var(--deep);font-size:20px}
.brand .tagline{color:var(--lav);font-weight:600}
nav a{color:var(--deep);opacity:.85}
nav a:hover{color:var(--purple);opacity:1;text-shadow:none}
nav a[aria-current]{color:var(--purple);opacity:1;text-shadow:none;border-bottom:2px solid var(--purple)}
.btn.sm{white-space:nowrap}
@media(max-width:480px){
  .hdr{padding-top:10px;padding-bottom:4px;gap:6px}
  .brand{gap:8px}.brand .skmark img{height:30px}.brand .bar{height:28px}
  .brand .bio{font-size:16px}.brand .tagline{font-size:8px}
  nav{gap:16px}nav a{font-size:13px;padding:6px 0}
}
/* ---- Catalog preview: chips + 2-col tiles ---- */
.chips{display:flex;gap:8px;flex-wrap:wrap;margin:4px 0 16px}
.chip{font:inherit;font-size:13px;font-weight:600;padding:0 14px;min-height:36px;border-radius:999px;border:1px solid var(--lav2);background:#fff;color:var(--deep);cursor:pointer}
.chip[aria-pressed="true"]{background:var(--purple);border-color:var(--purple);color:#fff;box-shadow:0 0 10px rgba(117,39,209,.35)}
.tiles{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
@media(min-width:640px){.tiles{grid-template-columns:repeat(3,1fr);gap:16px}}@media(min-width:960px){.tiles{grid-template-columns:repeat(4,1fr)}}
.tile{display:flex;flex-direction:column;align-items:center;text-align:center;gap:8px;padding:10px 10px 12px;border:1px solid var(--line);border-radius:14px;background:#fff;text-decoration:none;color:var(--text);transition:box-shadow .15s,border-color .15s}
.tile[hidden]{display:none}
.tile:hover{border-color:var(--glow);box-shadow:0 6px 18px rgba(117,39,209,.18)}
.tile .vial{width:100%;height:132px;display:flex;align-items:center;justify-content:center;border-radius:10px;background:radial-gradient(ellipse at 50% 70%,rgba(117,39,209,.55),rgba(14,5,32,1) 70%),#050409;box-shadow:inset 0 0 0 1px rgba(167,79,237,.35)}
.tile .vial img{height:118px;width:auto}
.tile h3{font-family:var(--display);font-style:italic;font-weight:900;font-size:14px;line-height:1.25;color:var(--navy);text-transform:uppercase;margin:2px 0 0;min-height:2.5em;display:flex;align-items:center}
.coa-badge{display:inline-flex;align-items:center;gap:4px;font-size:11px;font-weight:700;letter-spacing:.4px;color:#fff;background:var(--purple);padding:3px 9px;border-radius:999px;box-shadow:0 0 8px rgba(117,39,209,.35)}
.foot-brand{display:flex;align-items:center;gap:12px;margin-bottom:12px}
.foot-brand img{display:block;width:56px;height:56px;filter:drop-shadow(0 0 8px rgba(167,79,237,.6))}
.foot-brand strong{display:block;font-family:var(--display);font-style:italic;font-weight:900;color:#fff;font-size:17px;letter-spacing:.5px}
.foot-brand span{font-size:11px;letter-spacing:1.4px;text-transform:uppercase;color:var(--lav2)}
/* polish: uniform badge slot, edge blend, never upscale */
.badge-slot{display:flex;align-items:center;justify-content:center;min-height:24px}
.tile .vial img,.card .vial img,.vial-lg img{max-width:240px;max-height:440px;
  -webkit-mask-image:linear-gradient(to right,transparent 0,#000 16%,#000 84%,transparent 100%),linear-gradient(to bottom,transparent 0,#000 7%,#000 93%,transparent 100%);
  -webkit-mask-composite:source-in;mask-image:linear-gradient(to right,transparent 0,#000 16%,#000 84%,transparent 100%),linear-gradient(to bottom,transparent 0,#000 7%,#000 93%,transparent 100%);mask-composite:intersect}
.tile .vial{background:radial-gradient(ellipse at 50% 62%,rgba(117,39,209,.5),rgba(14,5,32,1) 72%),#050409}
.tile h3{min-height:2.5em}