/* ===========================================================
   WYKARA — shared stylesheet
   Clinical / research-lab aesthetic: near-black base, emerald
   accent, generous whitespace, sans-serif throughout.
   =========================================================== */

:root{
  --bg:        #07090c;  /* CarbonBlack — WYKARA brand spec */
  --bg-alt:    #0f1216;
  --bg-card:   #12161b;
  --border:    #20262b;
  --text:      #ffffff;  /* PureWhite */
  --muted:     #9198a3;  /* dimmed Titanium */
  --titanium:  #c6cbd3;  /* Titanium */
  --accent:    #006eff;  /* ElectricBlue — WYKARA brand spec */
  --accent-dim:#0057cc;
  --accent-ink:#ffffff;
  --danger:    #e05a5a;
  --radius:    10px;
  --maxw:      1180px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, Helvetica, Arial, sans-serif;
}

*{ box-sizing: border-box; }
html,body{ margin:0; padding:0; }
body{
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
a{ color: inherit; text-decoration: none; }
img{ max-width: 100%; display:block; }
.container{
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
}
.muted{ color: var(--muted); }
.accent{ color: var(--accent); }

/* ---------- header / nav ---------- */
header.site-header{
  position: sticky; top:0; z-index: 50;
  background: rgba(10,13,15,0.88);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.nav-row{
  display:flex; align-items:center; justify-content:space-between;
  padding: 16px 24px;
  max-width: var(--maxw);
  margin: 0 auto;
}
.brand{
  display:flex; align-items:center; gap:10px;
  font-weight:700; font-size:1.15rem; letter-spacing:0.04em;
}
.brand .logo-horizontal{ height:38px; width:auto; display:block; } /* meets 160px-wide brand minimum */
.footer-brand .logo-monogram{ height:26px; width:auto; display:block; }
.footer-brand{ display:flex; align-items:center; gap:10px; font-weight:700; font-size:1.05rem; margin-bottom:12px; }
nav.main-nav{ display:flex; align-items:center; gap:28px; }
nav.main-nav a{
  font-size:0.92rem; color: var(--muted); font-weight:500;
  transition: color .15s ease;
}
nav.main-nav a:hover, nav.main-nav a.active{ color: var(--text); }
.nav-actions{ display:flex; align-items:center; gap:16px; }
.cart-link{
  position:relative; display:flex; align-items:center; gap:6px;
  font-size:0.92rem; color: var(--text); font-weight:600;
  border:1px solid var(--border); padding:8px 14px; border-radius: var(--radius);
}
.cart-link:hover{ border-color: var(--accent); }
#cart-count{
  background: var(--accent); color: var(--accent-ink);
  font-size:0.72rem; font-weight:800; padding:1px 6px; border-radius:999px;
}
.mobile-toggle{ display:none; background:none; border:none; color:var(--text); font-size:1.4rem; cursor:pointer; }

@media (max-width: 820px){
  nav.main-nav{
    position:absolute; top:100%; left:0; right:0;
    flex-direction:column; align-items:flex-start; gap:0;
    background: var(--bg-alt); border-bottom:1px solid var(--border);
    padding: 8px 24px; display:none;
  }
  nav.main-nav.open{ display:flex; }
  nav.main-nav a{ padding:12px 0; width:100%; border-bottom:1px solid var(--border); }
  .mobile-toggle{ display:block; }
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  padding: 12px 22px; border-radius: var(--radius);
  font-weight:700; font-size:0.95rem; cursor:pointer;
  border:1px solid transparent; transition: all .15s ease;
}
.btn-primary{ background: var(--accent); color: var(--accent-ink); }
.btn-primary:hover{ background: var(--accent-dim); }
.btn-outline{ background:transparent; border-color: var(--border); color: var(--text); }
.btn-outline:hover{ border-color: var(--accent); color: var(--accent); }
.btn-block{ width:100%; }
.btn[disabled]{ opacity:0.5; cursor:not-allowed; }

/* ---------- hero ---------- */
.hero{
  padding: 96px 24px 72px;
  text-align:center;
  background:
    radial-gradient(ellipse at 50% -10%, rgba(0,110,255,0.16), transparent 60%),
    var(--bg);
  border-bottom: 1px solid var(--border);
}
.eyebrow{
  display:inline-block; font-size:0.78rem; font-weight:700; letter-spacing:0.12em;
  color: var(--accent); text-transform:uppercase; margin-bottom:18px;
  border:1px solid var(--accent-dim); padding:6px 14px; border-radius:999px;
}
.hero h1{
  font-size: clamp(2.1rem, 5vw, 3.4rem);
  line-height:1.12; letter-spacing:-0.01em; margin: 0 0 20px;
  max-width: 820px; margin-left:auto; margin-right:auto;
}
.hero p.lede{
  font-size:1.1rem; color: var(--muted); max-width:620px;
  margin: 0 auto 34px;
}
.hero-ctas{ display:flex; gap:14px; justify-content:center; flex-wrap:wrap; }
.disclaimer-bar{
  background: var(--bg-alt); border-top:1px solid var(--border); border-bottom:1px solid var(--border);
  padding: 10px 24px; text-align:center; font-size:0.8rem; color: var(--muted);
}

/* ---------- stats ---------- */
.stats{
  display:grid; grid-template-columns: repeat(4,1fr); gap:1px;
  background: var(--border);
  border-top:1px solid var(--border); border-bottom:1px solid var(--border);
}
.stat{
  background: var(--bg); padding: 34px 16px; text-align:center;
}
.stat .num{ font-size:1.9rem; font-weight:800; color: var(--accent); }
.stat .label{ font-size:0.82rem; color: var(--muted); margin-top:4px; }
@media (max-width:720px){ .stats{ grid-template-columns: repeat(2,1fr); } }

/* ---------- sections ---------- */
section{ padding: 72px 24px; }
.section-head{ text-align:center; max-width:640px; margin:0 auto 44px; }
.section-head h2{ font-size: clamp(1.5rem,3vw,2.1rem); margin-bottom:12px; }
.section-head p{ color: var(--muted); }

/* ---------- value props ---------- */
.value-grid{
  display:grid; grid-template-columns: repeat(3,1fr); gap:22px;
  max-width: var(--maxw); margin:0 auto;
}
.value-card{
  background: var(--bg-card); border:1px solid var(--border); border-radius: var(--radius);
  padding: 28px 24px;
}
.value-card .icon{
  width:40px; height:40px; border-radius:9px; background: rgba(0,110,255,0.14);
  color: var(--accent); display:flex; align-items:center; justify-content:center;
  font-size:1.2rem; margin-bottom:16px;
}
.value-card h3{ margin:0 0 8px; font-size:1.05rem; }
.value-card p{ margin:0; color: var(--muted); font-size:0.92rem; }
@media (max-width:820px){ .value-grid{ grid-template-columns:1fr; } }

/* ---------- product grid / cards ---------- */
.product-grid{
  display:grid; grid-template-columns: repeat(auto-fill, minmax(240px,1fr)); gap:20px;
  max-width: var(--maxw); margin: 0 auto;
}
.product-card{
  background: var(--bg-card); border:1px solid var(--border); border-radius: var(--radius);
  overflow:hidden; display:flex; flex-direction:column;
}
.product-media{
  height:180px; background: linear-gradient(135deg, #16211d, #0e1416);
  display:flex; align-items:center; justify-content:center;
  border-bottom:1px solid var(--border);
}
.product-media img{ height:88%; width:auto; max-width:100%; object-fit:contain; }
.product-body{ padding:18px 18px 20px; display:flex; flex-direction:column; gap:10px; flex:1; }
.product-body h3{ margin:0; font-size:1.02rem; }
.badge-row{ display:flex; gap:6px; flex-wrap:wrap; }
.badge{
  font-size:0.68rem; font-weight:700; letter-spacing:0.03em; text-transform:uppercase;
  color: var(--accent); background: rgba(0,110,255,0.12); border:1px solid var(--accent-dim);
  padding:3px 8px; border-radius:999px;
}
.product-body .desc{ font-size:0.86rem; color: var(--muted); margin:0; flex:1; }
.price-row{ display:flex; align-items:baseline; justify-content:space-between; margin-top:4px; }
.price{ font-size:1.25rem; font-weight:800; }
.price .unit{ font-size:0.78rem; color: var(--muted); font-weight:500; }

/* ---------- catalog toolbar ---------- */
.catalog-toolbar{
  display:flex; align-items:center; justify-content:space-between; gap:16px;
  max-width: var(--maxw); margin: 0 auto 28px; flex-wrap:wrap;
}
.catalog-toolbar select, .catalog-toolbar input{
  background: var(--bg-card); border:1px solid var(--border); color: var(--text);
  padding:10px 14px; border-radius: var(--radius); font-size:0.9rem;
}

/* ---------- cart page ---------- */
.cart-table{ width:100%; border-collapse: collapse; }
.cart-table th{
  text-align:left; font-size:0.78rem; text-transform:uppercase; letter-spacing:0.05em;
  color: var(--muted); border-bottom:1px solid var(--border); padding:10px 8px;
}
.cart-table td{ padding:16px 8px; border-bottom:1px solid var(--border); font-size:0.92rem; vertical-align:middle; }
.qty-input{
  width:56px; background: var(--bg-alt); border:1px solid var(--border); color:var(--text);
  padding:6px 8px; border-radius:6px; text-align:center;
}
.remove-link{ color: var(--danger); font-size:0.82rem; font-weight:600; cursor:pointer; }
.cart-summary{
  background: var(--bg-card); border:1px solid var(--border); border-radius: var(--radius);
  padding:24px; max-width:360px; margin-left:auto;
}
.summary-row{ display:flex; justify-content:space-between; margin-bottom:10px; font-size:0.92rem; }
.summary-row.total{ font-weight:800; font-size:1.1rem; border-top:1px solid var(--border); padding-top:12px; margin-top:12px; }
.empty-state{ text-align:center; padding:60px 20px; color: var(--muted); }

/* ---------- forms ---------- */
.form-card{
  background: var(--bg-card); border:1px solid var(--border); border-radius: var(--radius);
  padding: 32px; max-width:560px; margin: 0 auto;
}
.field{ margin-bottom:18px; }
.field label{ display:block; font-size:0.85rem; font-weight:600; margin-bottom:6px; }
.field input, .field textarea, .field select{
  width:100%; background: var(--bg-alt); border:1px solid var(--border); color: var(--text);
  padding:11px 13px; border-radius:8px; font-family: inherit; font-size:0.92rem;
}
.field textarea{ min-height:110px; resize:vertical; }
.form-note{ font-size:0.8rem; color: var(--muted); margin-top:6px; }
.payment-note{
  background: rgba(0,110,255,0.1); border:1px solid var(--accent-dim);
  border-radius: var(--radius); padding:16px 18px; font-size:0.86rem; color: var(--text);
  margin: 18px 0;
}

/* ---------- footer ---------- */
footer.site-footer{
  border-top:1px solid var(--border); background: var(--bg-alt);
  padding: 52px 24px 28px; margin-top:60px;
}
.footer-grid{
  display:grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap:32px;
  max-width: var(--maxw); margin:0 auto;
}
.footer-grid h4{ font-size:0.82rem; text-transform:uppercase; letter-spacing:0.05em; color: var(--muted); margin:0 0 14px; }
.footer-grid ul{ list-style:none; margin:0; padding:0; }
.footer-grid li{ margin-bottom:10px; }
.footer-grid a{ color: var(--text); font-size:0.9rem; }
.footer-grid a:hover{ color: var(--accent); }
.footer-bottom{
  max-width: var(--maxw); margin: 40px auto 0; padding-top:22px; border-top:1px solid var(--border);
  display:flex; justify-content:space-between; flex-wrap:wrap; gap:10px;
  font-size:0.78rem; color: var(--muted);
}
@media (max-width:820px){ .footer-grid{ grid-template-columns: 1fr 1fr; } }

/* ---------- misc pages ---------- */
.page-header{ padding: 56px 24px 8px; text-align:center; }
.page-header h1{ font-size: clamp(1.8rem,4vw,2.5rem); margin-bottom:10px; }
.two-col{ display:grid; grid-template-columns:1fr 1fr; gap:40px; max-width: var(--maxw); margin:0 auto; align-items:start; }
@media (max-width:820px){ .two-col{ grid-template-columns:1fr; } }
.toast{
  position:fixed; bottom:24px; left:50%; transform: translateX(-50%) translateY(20px);
  background: var(--accent); color: var(--accent-ink); font-weight:700; font-size:0.9rem;
  padding:12px 20px; border-radius: var(--radius); opacity:0; pointer-events:none;
  transition: all .25s ease; z-index:100;
}
.toast.show{ opacity:1; transform: translateX(-50%) translateY(0); }