:root{
    --sky:#EAF4FB;
    --sand:#F7EFE3;
    --white:#FFFFFF;
    --ink:#1C2B36;
    --ink-soft:#4C6172;
    --blue-deep:#1F5C8B;
    --blue-mid:#3E7CB1;
    --coral:#E8833A;
    --coral-dark:#C96A26;
    --line:#D7E6EF;
    --radius:20px;
    --shadow:0 20px 40px -20px rgba(31,92,139,0.25);
  }
  *{box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  body{
    margin:0;
    font-family:'Inter',sans-serif;
    color:var(--ink);
    background:var(--sky);
    -webkit-font-smoothing:antialiased;
  }
  h1,h2,h3,h4{
    font-family:'Baloo 2',sans-serif;
    margin:0;
    color:var(--blue-deep);
    line-height:1.05;
  }
  p{margin:0;color:var(--ink-soft);line-height:1.6;}
  a{text-decoration:none;color:inherit;}
  .mono{font-family:'JetBrains Mono',monospace;letter-spacing:0.02em;}
  .wrap{max-width:1200px;margin:0 auto;padding:0 32px;}
  img{max-width:100%;display:block;}
  button{font-family:inherit;cursor:pointer;border:none;}

  /* ---------- NAV ---------- */
  header{
    position:sticky;top:0;z-index:50;
    background:rgba(255,255,255,0.9);
    backdrop-filter:blur(10px);
    border-bottom:1px solid var(--line);
  }
  .nav{display:flex;align-items:center;justify-content:space-between;padding:16px 32px;max-width:1200px;margin:0 auto;}
  .logo{display:flex;align-items:center;gap:10px;font-family:'Baloo 2';font-weight:800;font-size:22px;color:var(--blue-deep);}
  .logo svg{width:34px;height:34px;}
  nav.links{display:flex;gap:32px;align-items:center;}
  nav.links a{font-weight:600;font-size:15px;color:var(--ink);opacity:0.85;transition:opacity .2s;}
  nav.links a:hover{opacity:1;color:var(--blue-deep);}
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    padding:13px 28px;border-radius:999px;font-weight:700;font-size:15px;
    background:var(--coral);color:#fff;transition:transform .2s, background .2s, box-shadow .2s;
    box-shadow:0 10px 24px -10px rgba(232,131,58,0.6);
  }
  .btn:hover{background:var(--coral-dark);transform:translateY(-2px);}
  .btn.ghost{background:transparent;color:var(--blue-deep);border:2px solid var(--blue-deep);box-shadow:none;}
  .btn.ghost:hover{background:var(--blue-deep);color:#fff;}
  .navbtn{display:none;}
  @media(max-width:860px){
    nav.links{display:none;}
    .navbtn{display:flex;}
  }

  /* ---------- HERO ---------- */
  .hero{
    position:relative;overflow:hidden;
    padding:72px 0 110px;
  }
  .hero .wrap{display:grid;grid-template-columns:1.1fr 0.9fr;gap:48px;align-items:center;}
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    font-family:'JetBrains Mono';font-size:13px;font-weight:500;
    color:var(--blue-mid);background:var(--white);
    padding:8px 16px;border-radius:999px;border:1px solid var(--line);margin-bottom:22px;
  }
  .eyebrow .dot{width:7px;height:7px;border-radius:50%;background:var(--coral);}
  .hero h1{font-size:clamp(36px,5vw,58px);font-weight:800;}
  .hero h1 span{color:var(--coral);}
  .hero p.lead{margin-top:22px;font-size:18px;max-width:480px;}
  .hero .cta-row{display:flex;gap:16px;margin-top:34px;flex-wrap:wrap;}
  .badges{display:flex;gap:14px;margin-top:44px;flex-wrap:wrap;}
  .badge{
    display:flex;align-items:center;gap:10px;background:var(--white);
    padding:10px 16px 10px 10px;border-radius:999px;border:1px solid var(--line);
    box-shadow:0 8px 20px -14px rgba(31,92,139,0.4);
  }
  .badge .ic{width:34px;height:34px;border-radius:50%;background:var(--sky);display:flex;align-items:center;justify-content:center;color:var(--blue-mid);}
  .badge span{font-size:13px;font-weight:700;color:var(--ink);}

  .hero-art{position:relative;height:460px;}
  .hero-art .blob{
    position:absolute;inset:0;
    background:radial-gradient(circle at 30% 20%, #cfe6f5 0%, transparent 55%),
               radial-gradient(circle at 80% 80%, var(--sand) 0%, transparent 50%);
    border-radius:36px;
  }
  .hero-art .card{
    position:absolute;background:var(--white);border-radius:26px;
    box-shadow:var(--shadow);padding:26px;border:1px solid var(--line);
  }
  .hero-art .card.dog{top:8%;left:6%;width:230px;}
  .hero-art .card.cat{bottom:6%;right:2%;width:210px;}
  .hero-art .chain{position:absolute;top:38%;left:38%;width:150px;opacity:.9;}

  /* ---------- PEPTIDE CHAIN DIVIDER (signature element) ---------- */
  .chain-divider{
    position:relative;padding:40px 0;background:var(--white);
    border-top:1px solid var(--line);border-bottom:1px solid var(--line);
    overflow:hidden;
  }
  .chain-track{
    display:flex;align-items:center;gap:0;width:max-content;
    animation:driftChain 34s linear infinite;
  }
  @keyframes driftChain{from{transform:translateX(0);}to{transform:translateX(-50%);}}
  .bead-unit{display:flex;align-items:center;flex-shrink:0;}
  .bead{
    width:46px;height:46px;border-radius:50%;
    display:flex;align-items:center;justify-content:center;
    font-family:'JetBrains Mono';font-size:12px;font-weight:700;color:#fff;
    box-shadow:inset 0 -4px 8px rgba(0,0,0,0.12);
    position:relative;cursor:default;
  }
  .bead:hover .tip{opacity:1;transform:translate(-50%,-6px);}
  .tip{
    position:absolute;bottom:calc(100% + 10px);left:50%;transform:translate(-50%,0);
    background:var(--ink);color:#fff;font-family:'Inter';font-weight:600;font-size:12px;
    padding:8px 12px;border-radius:10px;white-space:nowrap;opacity:0;pointer-events:none;
    transition:opacity .18s, transform .18s;
  }
  .tip:after{content:"";position:absolute;top:100%;left:50%;transform:translateX(-50%);border:5px solid transparent;border-top-color:var(--ink);}
  .link-line{width:34px;height:3px;background:var(--line);}
  .b1{background:var(--blue-mid);} .b2{background:var(--coral);} .b3{background:#7BAE8F;} .b4{background:var(--blue-deep);} .b5{background:#D98E6B;}

  /* ---------- SECTION HEADERS ---------- */
  .section{padding:96px 0;}
  .section.alt{background:var(--white);}
  .section-head{max-width:620px;margin:0 auto 56px;text-align:center;}
  .section-head .eyebrow{margin-bottom:16px;}
  .section-head h2{font-size:clamp(28px,3.4vw,40px);}
  .section-head p{margin-top:14px;font-size:16px;}

  /* ---------- BENEFITS ---------- */
  .benefits{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
  @media(max-width:920px){.benefits{grid-template-columns:repeat(2,1fr);}}
  @media(max-width:520px){.benefits{grid-template-columns:1fr;}}
  .benefit-card{
    background:var(--white);border:1px solid var(--line);border-radius:var(--radius);
    padding:32px 26px;text-align:left;transition:transform .25s, box-shadow .25s;
  }
  .benefit-card:hover{transform:translateY(-6px);box-shadow:var(--shadow);}
  .benefit-card .ic{
    width:52px;height:52px;border-radius:14px;background:var(--sky);
    display:flex;align-items:center;justify-content:center;color:var(--blue-mid);margin-bottom:18px;
  }
  .benefit-card h3{font-size:18px;margin-bottom:8px;}
  .benefit-card p{font-size:14.5px;}

  /* ---------- PRODUCTS ---------- */
  .products{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
  @media(max-width:980px){.products{grid-template-columns:repeat(2,1fr);}}
  @media(max-width:560px){.products{grid-template-columns:1fr;}}
  .product-card{
    background:var(--sand);border-radius:var(--radius);overflow:hidden;
    border:1px solid var(--line);display:flex;flex-direction:column;
    transition:transform .25s, box-shadow .25s;
  }
  .product-card:hover{transform:translateY(-6px);box-shadow:var(--shadow);}
  .product-thumb{
    height:150px;display:flex;align-items:center;justify-content:center;
    background:linear-gradient(135deg,var(--sky),#dcedf7);
  }
  .product-thumb svg{width:74px;height:74px;}
  .product-body{padding:22px;display:flex;flex-direction:column;gap:8px;flex:1;}
  .product-body h3{font-size:17px;}
  .product-tag{font-family:'JetBrains Mono';font-size:11.5px;color:var(--blue-mid);text-transform:uppercase;letter-spacing:.04em;}
  .product-body p{font-size:13.5px;flex:1;}
  .product-price{display:flex;align-items:center;justify-content:space-between;margin-top:10px;}
  .product-price strong{font-family:'Baloo 2';color:var(--blue-deep);font-size:19px;}
  .mini-btn{font-size:13px;font-weight:700;color:var(--coral-dark);border:2px solid var(--coral);background:transparent;padding:7px 14px;border-radius:999px;transition:.2s;white-space:nowrap;}
  .mini-btn:hover{background:var(--coral);color:#fff;}

  /* ---------- STORY ---------- */
  .story{display:grid;grid-template-columns:0.9fr 1.1fr;gap:56px;align-items:center;}
  @media(max-width:860px){.story{grid-template-columns:1fr;}}
  .story-art{position:relative;height:360px;}
  .story-art .frame{
    position:absolute;inset:0;border-radius:28px;
    background:linear-gradient(160deg,var(--blue-deep),var(--blue-mid));
    display:flex;align-items:center;justify-content:center;
  }
  .story-art svg{width:70%;height:70%;}
  .story h2{font-size:clamp(26px,3.2vw,36px);margin-bottom:18px;}
  .story p{font-size:16px;margin-bottom:16px;}
  .story .stats{display:flex;gap:36px;margin-top:24px;flex-wrap:wrap;}
  .stat strong{font-family:'Baloo 2';font-size:28px;color:var(--blue-deep);display:block;}
  .stat span{font-size:13px;color:var(--ink-soft);}

  /* ---------- BLOG ---------- */
  .blog-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
  @media(max-width:900px){.blog-grid{grid-template-columns:1fr;}}
  .blog-card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:transform .25s, box-shadow .25s;}
  .blog-card:hover{transform:translateY(-6px);box-shadow:var(--shadow);}
  .blog-thumb{height:150px;background:linear-gradient(135deg,#cfe6f5,var(--sand));}
  .blog-body{padding:22px;}
  .blog-cat{font-family:'JetBrains Mono';font-size:11px;color:var(--coral-dark);text-transform:uppercase;letter-spacing:.05em;}
  .blog-body h3{font-size:16.5px;margin:10px 0 8px;}
  .blog-body p{font-size:13.5px;}
  .blog-body .read{margin-top:14px;font-size:13px;font-weight:700;color:var(--blue-deep);}

  /* ---------- NEWSLETTER / FOOTER CTA ---------- */
  .cta-band{
    background:linear-gradient(135deg,var(--blue-deep),var(--blue-mid));
    border-radius:32px;padding:56px;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
    color:#fff;
  }
  .cta-band h2{color:#fff;font-size:clamp(24px,3vw,32px);}
  .cta-band p{color:#dceaf5;margin-top:10px;max-width:420px;}
  .cta-form{display:flex;gap:10px;flex-wrap:wrap;}
  .cta-form input{
    padding:14px 18px;border-radius:999px;border:none;font-family:'Inter';font-size:14px;
    min-width:240px;
  }
  .cta-form button{background:var(--coral);color:#fff;padding:14px 26px;border-radius:999px;font-weight:700;transition:.2s;}
  .cta-form button:hover{background:var(--coral-dark);}

  footer{background:var(--ink);color:#c9d6de;padding:64px 0 28px;margin-top:96px;}
  .foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;}
  @media(max-width:760px){.foot-grid{grid-template-columns:1fr 1fr;}}
  footer h4{color:#fff;font-size:14px;margin-bottom:16px;font-family:'Inter';font-weight:700;letter-spacing:.02em;}
  .foot-logo{display:flex;align-items:center;gap:10px;font-family:'Baloo 2';font-weight:800;font-size:20px;color:#fff;margin-bottom:14px;}
  .foot-grid p{color:#93a4ae;font-size:13.5px;}
  .foot-links a{display:block;font-size:13.5px;color:#c9d6de;margin-bottom:10px;transition:color .2s;}
  .foot-links a:hover{color:#fff;}
  .foot-bottom{
    max-width:1200px;margin:48px auto 0;padding:24px 32px 0;border-top:1px solid #33424c;
    display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;font-size:12.5px;color:#7f909a;
  }

  .reveal{opacity:0;transform:translateY(24px);transition:opacity .7s ease, transform .7s ease;}
  .reveal.in{opacity:1;transform:translateY(0);}

  @media(prefers-reduced-motion:reduce){
    html{scroll-behavior:auto;}
    .chain-track{animation:none;}
    .reveal{transition:none;opacity:1;transform:none;}
  }

/* ================= CART & CHECKOUT ================= */
.cart-hero{padding:48px 0 8px;}
.cart-hero h1{font-size:clamp(28px,4vw,40px);}
.cart-hero p{margin-top:10px;}

.cart-layout{
  display:grid;grid-template-columns:1.5fr 1fr;gap:40px;align-items:start;
  padding:40px 0 100px;
}
@media(max-width:900px){.cart-layout{grid-template-columns:1fr;}}

.cart-list{display:flex;flex-direction:column;gap:16px;}
.cart-item{
  display:grid;grid-template-columns:72px 1fr auto auto;gap:18px;align-items:center;
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius);
  padding:18px;
}
@media(max-width:560px){
  .cart-item{grid-template-columns:56px 1fr;grid-template-areas:"thumb name" "thumb qty" "thumb price";row-gap:10px;}
}
.cart-item .thumb{
  width:72px;height:72px;border-radius:14px;background:linear-gradient(135deg,var(--sky),#dcedf7);
  display:flex;align-items:center;justify-content:center;
}
.cart-item .thumb svg{width:40px;height:40px;}
.cart-item .info h3{font-size:15.5px;margin-bottom:4px;}
.cart-item .info span{font-family:'JetBrains Mono';font-size:11.5px;color:var(--blue-mid);text-transform:uppercase;letter-spacing:.04em;}
.qty-stepper{display:flex;align-items:center;gap:0;border:1px solid var(--line);border-radius:999px;overflow:hidden;}
.qty-stepper button{width:32px;height:32px;background:var(--sky);color:var(--blue-deep);font-weight:700;font-size:16px;}
.qty-stepper button:hover{background:var(--blue-mid);color:#fff;}
.qty-stepper span{width:34px;text-align:center;font-weight:700;font-size:14px;}
.cart-item .price-col{text-align:right;display:flex;flex-direction:column;align-items:flex-end;gap:6px;}
.cart-item .price-col strong{font-family:'Baloo 2';color:var(--blue-deep);font-size:17px;}
.remove-link{font-size:12px;color:var(--ink-soft);font-weight:600;transition:color .2s;}
.remove-link:hover{color:var(--coral-dark);}

.empty-cart{
  background:var(--white);border:1px dashed var(--line);border-radius:var(--radius);
  padding:64px 32px;text-align:center;
}
.empty-cart .ic{
  width:64px;height:64px;border-radius:50%;background:var(--sky);color:var(--blue-mid);
  display:flex;align-items:center;justify-content:center;margin:0 auto 18px;
}
.empty-cart h3{font-size:19px;margin-bottom:8px;}
.empty-cart .btn{margin-top:20px;}

.summary-card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px;position:sticky;top:96px;
}
.summary-card h3{font-size:18px;margin-bottom:18px;}
.summary-row{display:flex;justify-content:space-between;font-size:14.5px;margin-bottom:12px;color:var(--ink-soft);}
.summary-row.total{
  border-top:1px solid var(--line);margin-top:8px;padding-top:14px;
  font-weight:700;color:var(--ink);font-size:17px;
}
.summary-row.total strong{font-family:'Baloo 2';color:var(--blue-deep);font-size:20px;}
.promo-row{display:flex;gap:8px;margin:18px 0;}
.promo-row input{flex:1;padding:11px 14px;border-radius:12px;border:1px solid var(--line);font-family:'Inter';font-size:13.5px;}
.promo-row button{background:var(--sky);color:var(--blue-deep);font-weight:700;font-size:13px;padding:0 16px;border-radius:12px;}
.summary-card .btn{width:100%;margin-top:6px;}
.secure-note{display:flex;align-items:center;gap:8px;justify-content:center;margin-top:14px;font-size:12px;color:var(--ink-soft);}

/* checkout form */
.checkout-grid{display:grid;grid-template-columns:1.4fr 1fr;gap:40px;align-items:start;padding:16px 0 100px;}
@media(max-width:900px){.checkout-grid{grid-template-columns:1fr;}}
.checkout-form{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:32px;}
.form-section{margin-bottom:28px;}
.form-section h3{font-size:15px;text-transform:uppercase;letter-spacing:.04em;font-family:'JetBrains Mono';color:var(--blue-mid);margin-bottom:16px;}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-bottom:14px;}
.form-row.single{grid-template-columns:1fr;}
.form-row.card-line{grid-template-columns:1fr 100px 80px;}
@media(max-width:520px){.form-row, .form-row.card-line{grid-template-columns:1fr;}}
.field label{display:block;font-size:12.5px;font-weight:700;color:var(--ink-soft);margin-bottom:6px;}
.field input, .field select{
  width:100%;padding:13px 14px;border-radius:12px;border:1px solid var(--line);
  font-family:'Inter';font-size:14.5px;color:var(--ink);background:#fff;transition:border-color .2s, box-shadow .2s;
}
.field input:focus, .field select:focus{outline:none;border-color:var(--blue-mid);box-shadow:0 0 0 3px rgba(62,124,177,0.15);}
.field.error input{border-color:#D9534F;}
.field .err-msg{color:#D9534F;font-size:12px;margin-top:5px;display:none;}
.field.error .err-msg{display:block;}
.card-brand-row{display:flex;align-items:center;gap:10px;margin-top:4px;}
.card-brand-row svg{height:20px;opacity:.5;transition:opacity .2s;}
.card-brand-row svg.active{opacity:1;}

.pay-btn{
  width:100%;padding:16px;border-radius:14px;background:var(--coral);color:#fff;
  font-weight:700;font-size:16px;display:flex;align-items:center;justify-content:center;gap:10px;
  box-shadow:0 12px 26px -12px rgba(232,131,58,0.6);transition:background .2s, transform .2s;
}
.pay-btn:hover{background:var(--coral-dark);transform:translateY(-1px);}
.pay-btn:disabled{opacity:.7;cursor:not-allowed;transform:none;}
.spinner{width:18px;height:18px;border-radius:50%;border:2.5px solid rgba(255,255,255,0.4);border-top-color:#fff;animation:spin .7s linear infinite;display:none;}
.pay-btn.loading .spinner{display:inline-block;}
.pay-btn.loading .pay-label{opacity:.85;}
@keyframes spin{to{transform:rotate(360deg);}}

.trust-row{display:flex;justify-content:center;gap:18px;margin-top:16px;color:var(--ink-soft);font-size:12px;flex-wrap:wrap;}
.trust-row span{display:flex;align-items:center;gap:6px;}

.success-panel{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius);
  padding:56px 40px;text-align:center;
}
.success-panel .check{
  width:76px;height:76px;border-radius:50%;background:#E7F5EC;color:#3F9A5F;
  display:flex;align-items:center;justify-content:center;margin:0 auto 22px;
}
.success-panel h2{font-size:26px;margin-bottom:10px;}
.success-panel p{max-width:420px;margin:0 auto;}
.order-id{
  font-family:'JetBrains Mono';background:var(--sky);display:inline-block;
  padding:8px 16px;border-radius:999px;margin-top:18px;font-size:13px;color:var(--blue-deep);
}
.demo-banner{
  display:flex;gap:10px;align-items:flex-start;background:#FFF6EA;border:1px solid #F0DBB0;
  border-radius:14px;padding:14px 16px;font-size:13px;color:#8A6A2A;margin-bottom:24px;
}
.demo-banner svg{flex-shrink:0;margin-top:1px;}

.cart-count{
  position:absolute;top:-6px;right:-8px;background:var(--coral);color:#fff;
  font-size:10.5px;font-weight:700;width:18px;height:18px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;font-family:'Inter';
}
.nav-cart{position:relative;display:flex;align-items:center;}

@media(max-width:860px){
  .mobile-cart{display:flex !important;}
}