/* =========================================================
   Northline Peptide Co. — stylesheet
   Design language: dark clinical lab / instrument-panel
   ========================================================= */

:root{
  --bg:         #0C1012;
  --surface:    #14191C;
  --surface-2:  #191F22;
  --ink:        #E9EDEC;
  --ink-soft:   #93A1A0;
  --ink-faint:  #61706F;
  --steel:      #7FA8C9;
  --steel-dim:  #4E6B80;
  --line:       #262E31;
  --line-soft:  #1D2427;
  --accent:     #4FD397;      /* phosphor lab green */
  --accent-soft:#2B4A3D;
  --accent-glow: rgba(79,211,151,.28);
  --warn:       #E2794A;
  --warn-soft:  #3A2A22;
  --white:      var(--surface);

  --font-display: "Fraunces", Georgia, serif;
  --font-body:    "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono:    "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;

  --radius: 2px;
  --max: 1180px;
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  background:
    linear-gradient(rgba(255,255,255,.018) 1px, transparent 1px) 0 0/100% 34px,
    var(--bg);
  color:var(--ink);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
}
img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
h1,h2,h3,h4{
  font-family:var(--font-display);
  font-weight:600;
  line-height:1.08;
  margin:0 0 .4em;
  letter-spacing:-0.01em;
  color:var(--ink);
}
p{ margin:0 0 1em; color:var(--ink-soft); }
.container{
  max-width:var(--max);
  margin:0 auto;
  padding:0 28px;
}
.mono{ font-family:var(--font-mono); }
.eyebrow{
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--steel);
  display:inline-flex;
  align-items:center;
  gap:8px;
}
.eyebrow::before{
  content:"";
  width:6px; height:6px;
  background:var(--accent);
  border-radius:50%;
  display:inline-block;
  box-shadow:0 0 8px 1px var(--accent-glow);
}

/* -------------------- buttons -------------------- */
.btn{
  font-family:var(--font-mono);
  font-size:13px;
  letter-spacing:.04em;
  text-transform:uppercase;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:13px 22px;
  border:1px solid var(--ink);
  border-radius:var(--radius);
  background:var(--ink);
  color:var(--bg);
  cursor:pointer;
  transition:background .15s ease, color .15s ease, transform .1s ease, border-color .15s ease;
}
.btn:hover{ background:transparent; color:var(--ink); }
.btn:active{ transform:translateY(1px); }
.btn-outline{
  background:transparent;
  color:var(--ink);
  border-color:var(--line);
}
.btn-outline:hover{ background:var(--surface-2); color:var(--ink); border-color:var(--ink-soft); }
.btn-accent{
  border-color:var(--accent);
  background:var(--accent);
  color:#08120D;
  box-shadow:0 0 0 0 var(--accent-glow);
}
.btn-accent:hover{ background:transparent; color:var(--accent); box-shadow:0 0 18px 0 var(--accent-glow); }
.btn-block{ width:100%; }
.btn-sm{ padding:9px 14px; font-size:11.5px; }

/* -------------------- header -------------------- */
.site-header{
  position:sticky; top:0; z-index:50;
  background:rgba(12,16,18,.88);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex; align-items:center; justify-content:space-between;
  padding:16px 28px;
  max-width:var(--max); margin:0 auto;
}
.logo{
  font-family:var(--font-display);
  font-size:21px; font-weight:600;
  display:flex; align-items:baseline; gap:8px;
  color:var(--ink);
}
.logo .mark{
  font-family:var(--font-mono);
  font-size:10px;
  color:var(--accent);
  border:1px solid var(--accent-soft);
  padding:2px 5px;
  border-radius:2px;
  letter-spacing:.06em;
}
nav.main-nav{ display:flex; align-items:center; gap:30px; }
nav.main-nav a{
  font-size:14px; color:var(--ink-soft);
  position:relative;
  padding:4px 0;
}
nav.main-nav a:hover{ color:var(--ink); }
nav.main-nav a.active{ color:var(--ink); }
nav.main-nav a.active::after{
  content:""; position:absolute; left:0; right:0; bottom:-4px;
  height:2px; background:var(--accent);
  box-shadow:0 0 6px 0 var(--accent-glow);
}
.header-actions{ display:flex; align-items:center; gap:18px; }
.cart-btn{
  position:relative;
  display:flex; align-items:center; gap:7px;
  font-family:var(--font-mono); font-size:12.5px;
  color:var(--ink); border:1px solid var(--line);
  padding:8px 12px; border-radius:2px;
  background:var(--surface);
}
.cart-btn:hover{ border-color:var(--ink-soft); }
.cart-count{
  background:var(--accent); color:#08120D;
  font-size:10.5px; padding:1px 6px; border-radius:20px;
  min-width:16px; text-align:center;
}
.nav-toggle{ display:none; }

/* -------------------- hero -------------------- */
.hero{
  border-bottom:1px solid var(--line);
  overflow:hidden;
  position:relative;
}
.hero::before{
  content:"";
  position:absolute; inset:0;
  background:radial-gradient(ellipse 60% 50% at 80% 0%, var(--accent-soft), transparent 60%);
  opacity:.35; pointer-events:none;
}
.hero-inner{
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:60px;
  align-items:center;
  padding:76px 28px 64px;
  max-width:var(--max); margin:0 auto;
  position:relative;
}
.hero h1{
  font-size:clamp(34px,4.6vw,54px);
  margin:14px 0 20px;
}
.hero h1 em{
  font-style:italic; color:var(--steel);
}
.hero p.lead{
  font-size:17px; max-width:46ch;
  color:var(--ink-soft);
  margin-bottom:28px;
}
.hero-ctas{ display:flex; gap:14px; flex-wrap:wrap; }
.hero-note{
  margin-top:20px;
  font-family:var(--font-mono);
  font-size:11.5px;
  color:var(--ink-faint);
}

/* readout panel — signature element */
.readout{
  background:var(--surface);
  border:1px solid var(--line);
  color:var(--ink);
  border-radius:3px;
  padding:26px 26px 22px;
  font-family:var(--font-mono);
  position:relative;
  box-shadow:0 40px 80px -40px rgba(0,0,0,.7), inset 0 0 40px rgba(79,211,151,.03);
}
.readout::before{
  content:"CERTIFICATE OF ANALYSIS — LIVE SAMPLE";
  display:block;
  font-size:10px; letter-spacing:.12em;
  color:var(--ink-faint); margin-bottom:16px;
}
.readout-row{
  display:flex; justify-content:space-between;
  padding:9px 0; border-bottom:1px dashed var(--line);
  font-size:13px;
}
.readout-row:last-of-type{ border-bottom:none; }
.readout-row .k{ color:var(--ink-faint); }
.readout-row .v{ color:var(--ink); }
.readout-big{
  margin-top:18px;
  display:flex; align-items:baseline; gap:10px;
}
.readout-big .num{
  font-size:44px; font-weight:700; font-family:var(--font-mono);
  color:var(--accent);
  text-shadow:0 0 20px var(--accent-glow);
}
.readout-big .unit{ color:var(--ink-faint); font-size:13px; }
.readout-bar{
  height:6px; background:var(--surface-2); border-radius:4px; margin-top:14px; overflow:hidden;
  border:1px solid var(--line);
}
.readout-bar span{
  display:block; height:100%; width:0%;
  background:linear-gradient(90deg,#2B7A56,var(--accent));
  box-shadow:0 0 12px 0 var(--accent-glow);
  animation:fillBar 1.6s .3s ease-out forwards;
}
@keyframes fillBar{ to{ width:99.2%; } }

/* -------------------- trust strip -------------------- */
.trust-strip{
  border-bottom:1px solid var(--line);
  background:var(--surface);
}
.trust-strip .container{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:0;
}
.trust-item{
  padding:22px 20px;
  border-left:1px solid var(--line);
  font-size:12.5px;
  color:var(--ink-soft);
}
.trust-item:first-child{ border-left:none; }
.trust-item strong{
  display:block; color:var(--ink);
  font-family:var(--font-display); font-size:15px; margin-bottom:4px;
}

/* -------------------- sections -------------------- */
section{ padding:80px 0; }
.section-head{
  display:flex; justify-content:space-between; align-items:flex-end;
  gap:24px; margin-bottom:38px; flex-wrap:wrap;
}
.section-head h2{ font-size:clamp(26px,3vw,36px); margin:10px 0 0; }
.section-head p{ max-width:44ch; margin:10px 0 0; }

/* -------------------- vial illustration -------------------- */
.vial-visual{
  display:flex; align-items:center; justify-content:center;
  padding:18px 0 6px;
  background:
    radial-gradient(ellipse 70% 60% at 50% 30%, var(--accent-soft), transparent 70%),
    var(--surface);
  border-bottom:1px solid var(--line-soft);
}
.vial-visual-lg{
  padding:26px 0 10px;
  border-radius:2px;
  border-bottom:none;
  margin-bottom:6px;
}

/* -------------------- product grid / cards -------------------- */
.grid-products{
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(270px,1fr));
  gap:22px;
}
.card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:3px;
  display:flex; flex-direction:column;
  overflow:hidden;
  transition:border-color .15s ease, transform .15s ease, box-shadow .15s ease;
}
.card:hover{ border-color:var(--steel-dim); transform:translateY(-2px); box-shadow:0 20px 40px -30px rgba(0,0,0,.8); }
.card-top{
  padding:18px 20px 0;
  display:flex; justify-content:space-between; align-items:flex-start;
}
.badge{
  font-family:var(--font-mono); font-size:10px; letter-spacing:.08em;
  text-transform:uppercase;
  background:var(--accent-soft); color:var(--accent);
  padding:3px 8px; border-radius:20px;
}
.badge.warn{ background:var(--warn-soft); color:var(--warn); }
.stock-dot{
  width:7px; height:7px; border-radius:50%; background:var(--accent);
  display:inline-block; margin-right:6px;
  box-shadow:0 0 6px 0 var(--accent-glow);
}
.card h3{
  font-size:20px; padding:14px 20px 2px;
}
.card h3 a{ color:var(--ink); }
.card h3 a:hover{ color:var(--accent); }
.card .sub{
  padding:0 20px; font-family:var(--font-mono); font-size:11.5px;
  color:var(--steel); text-transform:uppercase; letter-spacing:.04em;
  margin-bottom:10px;
}
.card p.desc{
  padding:0 20px; font-size:13.5px; margin-bottom:14px;
}
.spec-table{
  margin:0 20px 16px;
  border-top:1px solid var(--line);
  font-family:var(--font-mono); font-size:12px;
}
.spec-table div{
  display:flex; justify-content:space-between;
  padding:7px 0; border-bottom:1px solid var(--line-soft);
  color:var(--ink-soft);
}
.spec-table div b{ color:var(--ink); font-weight:600; }
.card-foot{
  margin-top:auto;
  padding:16px 20px 20px;
  display:flex; align-items:center; justify-content:space-between;
  gap:12px;
  border-top:1px solid var(--line);
}
.price{
  font-family:var(--font-mono); font-size:18px; font-weight:600;
  color:var(--ink);
}
.price span{
  display:block; font-size:10.5px; color:var(--ink-faint); font-weight:400;
}

/* -------------------- process -------------------- */
.process-list{
  display:grid; grid-template-columns:repeat(4,1fr); gap:26px;
}
.process-item{
  border-top:2px solid var(--ink-soft);
  padding-top:16px;
}
.process-item .idx{
  font-family:var(--font-mono); font-size:12px; color:var(--steel);
}
.process-item h4{ font-size:17px; margin:10px 0 8px; }
.process-item p{ font-size:13.5px; margin:0; }

/* -------------------- CTA band -------------------- */
.cta-band{
  background:var(--surface-2);
  border:1px solid var(--line);
  color:var(--ink);
  border-radius:3px;
  padding:52px 44px;
  display:flex; align-items:center; justify-content:space-between;
  gap:30px; flex-wrap:wrap;
}
.cta-band h2{ color:var(--ink); font-size:clamp(24px,3vw,32px); max-width:20ch; }
.cta-band p{ color:var(--ink-soft); max-width:40ch; }

/* -------------------- footer -------------------- */
footer{
  border-top:1px solid var(--line);
  background:var(--surface);
  padding:56px 0 26px;
}
.footer-grid{
  display:grid; grid-template-columns:1.4fr 1fr 1fr 1.2fr; gap:36px;
  margin-bottom:36px;
}
.footer-grid h5{
  font-family:var(--font-mono); font-size:11px; letter-spacing:.1em;
  text-transform:uppercase; color:var(--ink-faint); margin:0 0 14px;
}
.footer-grid a{
  display:block; font-size:13.5px; color:var(--ink-soft); padding:5px 0;
}
.footer-grid a:hover{ color:var(--accent); }
.disclaimer{
  font-size:11.5px; color:var(--ink-faint);
  border-top:1px solid var(--line); padding-top:22px;
  line-height:1.7;
}
.disclaimer strong{ color:var(--ink-soft); }
.footer-bottom{
  display:flex; justify-content:space-between; align-items:center;
  margin-top:20px; font-size:12px; color:var(--ink-faint); flex-wrap:wrap; gap:10px;
}

/* -------------------- page header (inner pages) -------------------- */
.page-head{
  border-bottom:1px solid var(--line);
  padding:56px 0 40px;
}
.page-head .eyebrow{ margin-bottom:14px; }
.page-head h1{ font-size:clamp(30px,4vw,44px); }
.page-head p{ max-width:56ch; }

/* -------------------- shop filter bar -------------------- */
.filter-bar{
  display:flex; gap:10px; flex-wrap:wrap; margin-bottom:30px;
}
.filter-chip{
  font-family:var(--font-mono); font-size:12px;
  padding:8px 14px; border:1px solid var(--line); border-radius:20px;
  background:var(--surface); cursor:pointer; color:var(--ink-soft);
}
.filter-chip.active{ background:var(--accent); color:#08120D; border-color:var(--accent); }

/* -------------------- contact page -------------------- */
.contact-wrap{
  display:grid; grid-template-columns:1fr 1fr; gap:56px;
  padding:64px 0 90px;
}
.contact-form{
  display:flex; flex-direction:column; gap:16px;
}
.field label{
  display:block; font-family:var(--font-mono); font-size:11px;
  text-transform:uppercase; letter-spacing:.06em; color:var(--ink-faint); margin-bottom:7px;
}
.field input, .field textarea, .field select{
  width:100%; padding:12px 13px; border:1px solid var(--line);
  border-radius:2px; background:var(--surface); font-family:var(--font-body);
  font-size:14.5px; color:var(--ink);
}
.field select option{ background:var(--surface); color:var(--ink); }
.field textarea{ resize:vertical; min-height:120px; }
.field input:focus, .field textarea:focus, .field select:focus{
  outline:2px solid var(--accent); outline-offset:1px; border-color:var(--accent);
}
.order-summary{
  background:var(--surface); border:1px solid var(--line); border-radius:3px;
  padding:22px;
}
.order-summary h4{ font-size:14px; font-family:var(--font-mono); text-transform:uppercase; letter-spacing:.05em; margin-bottom:14px; color:var(--ink);}
.order-line{
  display:flex; justify-content:space-between; font-size:13.5px;
  padding:8px 0; border-bottom:1px solid var(--line); color:var(--ink-soft);
}
.order-line b{ color:var(--ink); }
.empty-note{ font-size:13.5px; color:var(--ink-faint); }
.contact-info-block{ margin-top:26px; }
.contact-info-block .row{
  display:flex; gap:12px; padding:12px 0; border-top:1px solid var(--line); font-size:13.5px; color:var(--ink-soft);
}
.contact-info-block .row:first-child{ border-top:none; }
.contact-info-block .row span:first-child{ font-family:var(--font-mono); color:var(--steel); min-width:90px; }
.form-msg{
  font-family:var(--font-mono); font-size:12.5px; padding:12px 14px;
  border-radius:2px; display:none;
}
.form-msg.show{ display:block; }
.form-msg.ok{ background:var(--accent-soft); color:var(--accent); }
.form-msg.err{ background:var(--warn-soft); color:var(--warn); }

/* -------------------- mini-cart drawer -------------------- */
.cart-drawer{
  position:fixed; top:0; right:-420px; width:400px; max-width:92vw; height:100vh;
  background:var(--surface); border-left:1px solid var(--line);
  box-shadow:-30px 0 60px -20px rgba(0,0,0,.6);
  z-index:100; transition:right .25s ease;
  display:flex; flex-direction:column;
}
.cart-drawer.open{ right:0; }
.cart-drawer-head{
  padding:22px; border-bottom:1px solid var(--line);
  display:flex; justify-content:space-between; align-items:center;
}
.cart-drawer-head h4{ font-family:var(--font-mono); font-size:14px; text-transform:uppercase; letter-spacing:.05em; margin:0; color:var(--ink);}
.cart-close{ cursor:pointer; font-size:20px; line-height:1; background:none; border:none; color:var(--ink-faint); }
.cart-items{ flex:1; overflow-y:auto; padding:10px 22px; }
.cart-item{
  display:flex; justify-content:space-between; gap:10px;
  padding:14px 0; border-bottom:1px solid var(--line);
}
.cart-item .name{ font-size:13.5px; font-weight:600; color:var(--ink); }
.cart-item .meta{ font-family:var(--font-mono); font-size:11px; color:var(--ink-faint); }
.cart-item .remove{ background:none; border:none; color:var(--warn); font-size:11px; font-family:var(--font-mono); cursor:pointer; padding:0; margin-top:6px; }
.cart-drawer-foot{ padding:20px 22px; border-top:1px solid var(--line); }
.cart-total{ display:flex; justify-content:space-between; font-family:var(--font-mono); font-size:15px; margin-bottom:14px; color:var(--ink); }
.overlay{
  position:fixed; inset:0; background:rgba(0,0,0,.55);
  z-index:90; opacity:0; pointer-events:none; transition:opacity .2s ease;
}
.overlay.show{ opacity:1; pointer-events:auto; }

/* -------------------- about page -------------------- */
.about-grid{
  display:grid; grid-template-columns:1fr 1fr; gap:56px; padding:64px 0;
  align-items:start;
}
.stat-block{
  display:grid; grid-template-columns:repeat(2,1fr); gap:20px; margin-top:30px;
}
.stat-block div{ border-top:2px solid var(--ink-soft); padding-top:10px; }
.stat-block .n{ font-family:var(--font-mono); font-size:30px; font-weight:700; color:var(--accent); text-shadow:0 0 16px var(--accent-glow); }
.stat-block .l{ font-size:12px; color:var(--ink-faint); }

/* -------------------- product detail page -------------------- */
.product-detail{
  display:grid; grid-template-columns:1fr 1fr; gap:60px;
  padding:64px 0;
}
.product-visual{
  background:var(--surface); border:1px solid var(--line); border-radius:3px;
  padding:30px; position:sticky; top:100px;
}
.product-visual .vial-mark{
  font-family:var(--font-mono); font-size:11px; color:var(--ink-faint);
  writing-mode:vertical-rl; text-orientation:mixed;
}
.qty-row{ display:flex; align-items:center; gap:14px; margin:20px 0; }
.qty-control{
  display:flex; align-items:center; border:1px solid var(--line); border-radius:2px; overflow:hidden;
}
.qty-control button{
  background:var(--surface-2); border:none; color:var(--ink); width:34px; height:38px; cursor:pointer; font-family:var(--font-mono);
}
.qty-control button:hover{ color:var(--accent); }
.qty-control span{
  width:40px; text-align:center; font-family:var(--font-mono); font-size:14px;
}
.detail-actions{ display:flex; gap:12px; margin:22px 0; }
.detail-specs{ margin-top:30px; }
.detail-specs .spec-table{ margin:0; font-size:13px; }
.breadcrumb{
  font-family:var(--font-mono); font-size:11.5px; color:var(--ink-faint);
  padding:20px 0 0;
}
.breadcrumb a{ color:var(--steel); }
.related-heading{ margin:70px 0 24px; }

/* -------------------- responsive -------------------- */
@media (max-width:900px){
  .hero-inner{ grid-template-columns:1fr; padding:50px 22px; gap:40px; }
  .trust-strip .container{ grid-template-columns:repeat(2,1fr); }
  .trust-item{ border-left:none; border-top:1px solid var(--line); }
  .trust-item:nth-child(1),.trust-item:nth-child(2){ border-top:none; }
  .process-list{ grid-template-columns:1fr 1fr; }
  .footer-grid{ grid-template-columns:1fr 1fr; }
  .contact-wrap{ grid-template-columns:1fr; padding:44px 0 70px; }
  .about-grid{ grid-template-columns:1fr; padding:44px 0; }
  .product-detail{ grid-template-columns:1fr; padding:44px 0; }
  .product-visual{ position:static; }
  nav.main-nav{
    position:fixed; top:65px; left:0; right:0; bottom:0;
    background:var(--bg); flex-direction:column; align-items:flex-start;
    padding:26px 28px; gap:6px; transform:translateY(-110%);
    transition:transform .2s ease; z-index:60; border-top:1px solid var(--line);
  }
  nav.main-nav.open{ transform:translateY(0); }
  nav.main-nav a{ width:100%; padding:12px 0; border-bottom:1px solid var(--line); font-size:16px; }
  .nav-toggle{
    display:block; background:none; border:1px solid var(--line); border-radius:2px;
    padding:8px 11px; font-family:var(--font-mono); font-size:12px; cursor:pointer; color:var(--ink);
  }
}
@media (max-width:640px){
  .process-list{ grid-template-columns:1fr; }
  .footer-grid{ grid-template-columns:1fr; }
  .cta-band{ flex-direction:column; align-items:flex-start; }
}