/* Axon Peptide Labs — research-peptide ecommerce. Clinical teal + clinical
   white + graphite. Molecular grid texture, gradient washes. Space Grotesk
   (display) + Inter (body). Distinct from every other demo. Mobile-first. */
:root{
  --ink:#11201f;
  --paper:#f4f7f7;
  --paper-2:#e8eeee;
  --teal:#0e9e8f;
  --teal-bright:#18c4b0;
  --teal-deep:#0a6f64;
  --graphite:#1c2b2a;
  --graphite-2:#26403d;
  --mute:#6b7d7c;
  --white:#ffffff;
  --line:rgba(17,32,31,.12);
  --line-light:rgba(255,255,255,.14);
  --ok:#0e9e8f; --bad:#c1453f;
  --shadow:0 22px 55px -28px rgba(17,32,31,.40);
  --shadow-sm:0 8px 22px -14px rgba(17,32,31,.28);
  --disp:'Space Grotesk','Segoe UI',sans-serif;
  --sans:'Inter','Helvetica Neue',Arial,sans-serif;
  --ease:cubic-bezier(.22,1,.36,1);
  --r:14px; --r-sm:8px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;overflow-x:hidden}
body{
  font-family:'Inter','Helvetica Neue',Arial,sans-serif;color:var(--ink);line-height:1.7;overflow-x:hidden;font-size:17px;-webkit-font-smoothing:antialiased;position:relative;
  background:
    radial-gradient(900px 480px at 88% -8%, rgba(24,196,176,.10), transparent 60%),
    radial-gradient(700px 420px at -8% 14%, rgba(14,158,143,.07), transparent 55%),
    var(--paper);
  background-attachment:fixed;
}
/* molecular grid + faint SVG grain texture (premium surface, not flat) */
body::before{content:"";position:fixed;inset:0;z-index:1;pointer-events:none;opacity:.5;
  background-image:
    linear-gradient(rgba(17,32,31,.035) 1px,transparent 1px),
    linear-gradient(90deg,rgba(17,32,31,.035) 1px,transparent 1px);
  background-size:42px 42px}
body::after{content:"";position:fixed;inset:0;z-index:1;pointer-events:none;opacity:.28;mix-blend-mode:multiply;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='g'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23g)' opacity='.55'/%3E%3C/svg%3E")}
.wrap,.site-header,.hero,section,footer{position:relative;z-index:2}
img{max-width:100%;display:block}
a{color:var(--teal-deep);text-decoration:none}
h1,h2,h3,h4{font-family:'Space Grotesk','Segoe UI',sans-serif;font-weight:600;line-height:1.08;color:var(--ink);letter-spacing:-.02em}
h1{font-size:clamp(2.5rem,6vw,4.6rem)}
h2{font-size:clamp(1.9rem,4vw,3rem)}
h3{font-size:1.25rem}
p{margin:0 0 1.1em}
.wrap{max-width:1180px;margin:0 auto;padding:0 26px}
.eyebrow{font-family:var(--disp);font-weight:600;text-transform:uppercase;letter-spacing:.2em;font-size:.74rem;color:var(--teal-deep);margin:0 0 1rem}
.mono{font-family:var(--disp);letter-spacing:.02em}
.btn{display:inline-flex;align-items:center;gap:.55em;font-family:var(--sans);font-weight:600;font-size:.92rem;padding:.95em 1.8em;border-radius:6px;cursor:pointer;border:1.5px solid transparent;transition:.3s var(--ease);text-align:center}
.btn-teal{background:linear-gradient(135deg,var(--teal-bright),var(--teal));color:#fff}
.btn-teal:hover{background:linear-gradient(135deg,#26d4c0,var(--teal-bright));transform:translateY(-2px);box-shadow:var(--shadow-sm)}
.btn-outline{background:transparent;color:var(--ink);border-color:var(--ink)}
.btn-outline:hover{background:var(--ink);color:var(--paper);transform:translateY(-2px)}
.btn-ghost-light{background:transparent;color:#fff;border-color:var(--line-light)}
.btn-ghost-light:hover{background:rgba(255,255,255,.1);border-color:var(--teal-bright);transform:translateY(-2px)}
.site-header{position:fixed;top:0;left:0;right:0;z-index:50;padding:18px 0;transition:.35s}
.site-header.scrolled{background:rgba(244,247,247,.97);backdrop-filter:blur(10px);padding:11px 0;box-shadow:0 2px 24px rgba(17,32,31,.10)}
.nav-inner{display:flex;align-items:center;justify-content:space-between}
.brand{display:flex;align-items:center;gap:.6rem;color:var(--ink);font-family:var(--disp);font-size:1.3rem;font-weight:700;letter-spacing:-.01em}
.brand .mk{width:36px;height:36px;flex:none}
.nav-links{display:flex;align-items:center;gap:1.8rem;list-style:none}
.nav-links a{color:var(--ink);font-size:.9rem;font-weight:500;position:relative;transition:color .2s}
.nav-links a:hover{color:var(--teal-deep)}
.nav-links a::after{content:"";position:absolute;left:0;bottom:-5px;width:0;height:2px;background:var(--teal);transition:width .25s}
.nav-links a:hover::after{width:100%}
.cart-link{display:flex;align-items:center;gap:.5rem;background:var(--ink);color:#fff;padding:.6em 1.1em;border-radius:30px;font-weight:600;font-size:.85rem;cursor:pointer;border:0;transition:.25s}
.cart-link:hover{background:var(--graphite-2)}
.cart-link .cc{background:var(--teal);border-radius:20px;padding:1px 8px;font-size:.74rem;min-width:20px;text-align:center}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:8px}
.nav-toggle span{width:26px;height:2px;background:var(--ink);transition:.3s;border-radius:2px}
.hero{position:relative;min-height:96vh;display:flex;align-items:center;color:#fff;overflow:hidden;background:linear-gradient(150deg,var(--graphite) 0%,var(--graphite-2) 100%)}
.hero-bg{position:absolute;inset:0;z-index:0}
.hero-bg img{width:100%;height:100%;object-fit:cover;opacity:.22}
.hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,var(--graphite) 30%,rgba(28,43,42,.6) 70%,rgba(28,43,42,.35))}
.hero-inner{position:relative;z-index:2;max-width:720px;padding-top:80px}
.hero h1{color:#fff}
.hero h1 em{font-style:normal;color:var(--teal-bright)}
.hero .lead{font-size:1.18rem;color:rgba(255,255,255,.86);max-width:50ch;margin:1.3rem 0 2rem}
.hero-cta{display:flex;gap:1rem;flex-wrap:wrap}
.hero-badges{display:flex;gap:1.6rem;margin-top:2.6rem;padding-top:1.8rem;border-top:1px solid var(--line-light);flex-wrap:wrap}
.hero-badges .b{display:flex;align-items:center;gap:.5rem;font-size:.85rem;color:rgba(255,255,255,.82)}
.hero-badges .b svg{width:20px;height:20px;stroke:var(--teal-bright);fill:none}
.section{padding:clamp(60px,8vw,110px) 0}
.section-head{max-width:660px;margin:0 0 3rem}
.section-head.center{margin:0 auto 3rem;text-align:center}
.bg-graphite{background:linear-gradient(160deg,var(--graphite),var(--graphite-2));color:var(--paper)}
.bg-graphite h2,.bg-graphite h3{color:#fff}
.bg-paper2{background:linear-gradient(180deg,var(--paper),var(--paper-2))}
.why-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.4rem}
.why{background:linear-gradient(170deg,#fff,#f7fafa);border:1px solid var(--line);border-radius:var(--r);padding:1.9rem;transition:transform .3s var(--ease),box-shadow .3s}
.why:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.why .ic{width:46px;height:46px;border-radius:10px;background:var(--paper);display:grid;place-items:center;margin-bottom:1rem}
.why .ic svg{width:24px;height:24px;stroke:var(--teal);fill:none}
.why h3{margin-bottom:.3rem}
.why p{font-size:.93rem;color:var(--mute);margin:0}
.shop-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.4rem}
.prod{background:#fff;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;transition:transform .3s var(--ease),box-shadow .3s;display:flex;flex-direction:column}
.prod:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.prod .thumb{aspect-ratio:16/10;overflow:hidden;position:relative;background:var(--graphite)}
.prod .thumb img{width:100%;height:100%;object-fit:cover;opacity:.92;transition:transform .5s}
.prod:hover .thumb img{transform:scale(1.05)}
.prod .coa{position:absolute;top:10px;right:10px;background:rgba(14,158,143,.94);color:#fff;font-size:.66rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;padding:.3em .6em;border-radius:5px}
.prod .body{padding:1.2rem 1.3rem 1.4rem;display:flex;flex-direction:column;flex:1}
.prod .body h3{font-size:1.12rem;margin-bottom:.15rem}
.prod .purity{font-family:var(--disp);font-size:.78rem;color:var(--teal-deep);letter-spacing:.04em;margin-bottom:.5rem}
.prod .desc{font-size:.86rem;color:var(--mute);margin-bottom:1rem;flex:1}
.prod .buy{display:flex;align-items:center;justify-content:space-between;gap:.8rem}
.prod .price{font-family:var(--disp);font-size:1.3rem;font-weight:700;color:var(--ink)}
.prod .add{background:var(--ink);color:#fff;border:0;border-radius:6px;padding:.6em 1.1em;font-weight:600;font-size:.85rem;cursor:pointer;transition:.25s;font-family:var(--sans)}
.prod .add:hover{background:var(--teal)}
.coupon-band{background:linear-gradient(135deg,var(--teal-deep),var(--teal));color:#fff;border-radius:var(--r);padding:clamp(2rem,5vw,3.2rem);display:flex;align-items:center;justify-content:space-between;gap:2rem;flex-wrap:wrap}
.coupon-band h2{color:#fff}
.coupon-codes{display:flex;gap:.7rem;flex-wrap:wrap;margin-top:1rem}
.coupon-codes code{background:rgba(255,255,255,.16);border:1px dashed rgba(255,255,255,.5);padding:.4em .8em;border-radius:6px;font-family:var(--disp);font-size:.85rem;letter-spacing:.05em}
.ruo{background:var(--graphite);color:rgba(255,255,255,.8);border-radius:var(--r);padding:1.6rem 1.8rem;font-size:.9rem;border-left:3px solid var(--teal);margin-top:2rem}
.ruo strong{color:var(--teal-bright)}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:3rem}
.contact-form{display:grid;gap:1rem}
.contact-form label{font-weight:600;font-size:.85rem;display:block;margin-bottom:.3rem}
.contact-form input,.contact-form textarea{width:100%;padding:.85em 1em;border:1.5px solid var(--line);border-radius:var(--r-sm);font-family:inherit;font-size:1rem;background:#fff;transition:border .2s}
.contact-form input:focus,.contact-form textarea:focus{outline:none;border-color:var(--teal)}
.form-note{padding:.85em 1.1em;border-radius:var(--r-sm);font-size:.92rem;display:none}
.form-note.ok{display:block;background:#e3f3f0;color:var(--teal-deep);border:1px solid #b6ddd6}
.site-footer{background:linear-gradient(160deg,var(--graphite),#142020);color:rgba(255,255,255,.7);padding:60px 0 0}
.foot-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.2fr;gap:2.4rem;padding-bottom:38px}
.site-footer h4{color:#fff;font-family:var(--disp);font-size:.78rem;text-transform:uppercase;letter-spacing:.14em;margin-bottom:1rem}
.site-footer a{color:rgba(255,255,255,.7);display:block;padding:.28rem 0;transition:color .2s;font-size:.9rem}
.site-footer a:hover{color:var(--teal-bright)}
.foot-brand p{font-size:.9rem;max-width:300px;margin-top:.8rem}
.foot-disclaimer{font-size:.78rem;color:rgba(255,255,255,.5);max-width:90ch;padding:16px 0;border-top:1px solid var(--line-light)}
.foot-bottom{border-top:1px solid var(--line-light);padding:20px 0;display:flex;justify-content:space-between;flex-wrap:wrap;gap:.5rem;font-size:.84rem}
.foot-bottom a{display:inline;color:var(--teal-bright);font-weight:600}
/* cart drawer */
.cart-overlay{position:fixed;inset:0;background:rgba(17,32,31,.5);backdrop-filter:blur(3px);opacity:0;visibility:hidden;transition:opacity .3s;z-index:70}
.cart-overlay.open{opacity:1;visibility:visible}
.cart{position:fixed;top:0;right:0;height:100%;width:min(92vw,420px);background:var(--paper);z-index:71;display:flex;flex-direction:column;transform:translateX(100%);transition:transform .35s var(--ease);box-shadow:-20px 0 60px rgba(0,0,0,.2)}
.cart.open{transform:translateX(0)}
.cart-head{display:flex;align-items:center;justify-content:space-between;padding:20px;border-bottom:1px solid var(--line)}
.cart-head h3{margin:0}
.cart-head .x{background:none;border:0;font-size:1.7rem;cursor:pointer;color:var(--mute);line-height:1}
.cart-items{flex:1;overflow-y:auto;padding:18px 20px;display:flex;flex-direction:column;gap:14px}
.cart-empty{color:var(--mute);text-align:center;margin-top:2rem}
.ci{display:grid;grid-template-columns:1fr auto auto;gap:.8rem;align-items:center}
.ci-name b{display:block;font-size:.95rem}
.ci-name span{font-size:.78rem;color:var(--mute)}
.ci .qty{display:flex;align-items:center;gap:.5rem}
.ci .qty button{width:26px;height:26px;border-radius:6px;border:1px solid var(--line);background:#fff;cursor:pointer;font-size:1rem;line-height:1}
.ci-price{font-family:var(--disp);font-weight:700;min-width:62px;text-align:right}
.cart-foot{border-top:1px solid var(--line);padding:18px 20px;background:#fff}
.coupon-row{display:flex;gap:.5rem;margin-bottom:.9rem}
.coupon-row input{flex:1;padding:.65em .9em;border:1.5px solid var(--line);border-radius:6px;font-family:var(--disp);font-size:.9rem;text-transform:uppercase;letter-spacing:.05em}
.coupon-row input:focus{outline:none;border-color:var(--teal)}
.coupon-row button{background:var(--ink);color:#fff;border:0;border-radius:6px;padding:0 1.1em;font-weight:600;font-size:.85rem;cursor:pointer}
.coupon-msg{font-size:.82rem;margin-bottom:.8rem;min-height:1.1em}
.coupon-msg.ok{color:var(--teal-deep)}.coupon-msg.bad{color:var(--bad)}
.cart-line{display:flex;justify-content:space-between;font-size:.92rem;color:var(--mute);margin-bottom:.4rem}
.cart-line.discount{color:var(--teal-deep);font-weight:600}
.cart-total{display:flex;justify-content:space-between;font-family:var(--disp);font-size:1.3rem;font-weight:700;color:var(--ink);margin:.6rem 0 1rem;padding-top:.6rem;border-top:1px solid var(--line)}
.checkout-btn{width:100%;justify-content:center}
.toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%) translateY(20px);background:var(--ink);color:#fff;padding:.8em 1.4em;border-radius:30px;font-size:.9rem;font-weight:500;opacity:0;transition:.3s var(--ease);z-index:90;pointer-events:none}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}
.co-success{text-align:center;padding:2rem 0}
.co-success .ck{width:60px;height:60px;border-radius:50%;background:rgba(14,158,143,.15);color:var(--teal-deep);display:grid;place-items:center;font-size:1.9rem;margin:0 auto 1rem}
.reveal{opacity:0;transform:translateY(24px);transition:opacity .7s,transform .7s}
.reveal.in{opacity:1;transform:none}
@media(max-width:900px){ .why-grid{grid-template-columns:1fr} .shop-grid{grid-template-columns:1fr 1fr} .foot-grid{grid-template-columns:1fr 1fr} }
@media(max-width:768px){
  .nav-links{position:fixed;inset:0 0 0 auto;width:min(78vw,300px);background:var(--paper);flex-direction:column;justify-content:center;gap:1.5rem;padding:2rem;transform:translateX(100%);transition:transform .35s var(--ease);box-shadow:-20px 0 60px rgba(0,0,0,.15)}
  .nav-links.open{transform:translateX(0)}
  .nav-toggle{display:flex}
  .contact-grid{grid-template-columns:1fr}
  .coupon-band{flex-direction:column;text-align:center}
}
@media(max-width:480px){ .shop-grid{grid-template-columns:1fr} body{font-size:16px} .hero-cta{flex-direction:column} .hero-cta .btn{width:100%;justify-content:center} }