/* ScienceOne Labs storefront. White/blue system from the approved label design. */
:root{
  --ink:#13293e; --steel:#2e6d9e; --cobalt:#1d5fd0; --ice:#eef1f5;
  --line:#d9e2ec; --sub:#44536e; --field:#ffffff;
  --glow:0 0 0 1.5px rgba(61,139,255,.65), 0 10px 34px rgba(61,139,255,.30);
  --glowup:0 0 0 2px rgba(61,139,255,.95), 0 16px 46px rgba(61,139,255,.48);
  --radius:14px;
}
*{margin:0;padding:0;box-sizing:border-box}
[hidden]{display:none !important}
html{scroll-behavior:smooth}
body{font-family:'Montserrat','Segoe UI',sans-serif;color:var(--ink);background:var(--field);-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:var(--cobalt);text-decoration:none}
.wrap{max-width:1180px;margin:0 auto;padding:0 22px}

/* ---------- free shipping ticker (white, navy text) ---------- */
.ticker{background:#fff;color:var(--ink);border-bottom:1px solid var(--line);overflow:hidden;height:34px;display:flex;align-items:center}
.ticker-track{display:flex;gap:56px;white-space:nowrap;animation:tick 28s linear infinite;font-size:11.5px;font-weight:700;letter-spacing:.14em}
.ticker-track span{display:inline-flex;align-items:center;gap:10px}
.ticker-track .dot{width:5px;height:5px;border-radius:50%;background:var(--cobalt);display:inline-block}
@keyframes tick{from{transform:translateX(0)}to{transform:translateX(-50%)}}

/* ---------- header (navy) ---------- */
.site-header{position:sticky;top:0;z-index:60;background:var(--ink);border-bottom:1px solid rgba(255,255,255,.08)}
.header-inner{display:flex;align-items:center;gap:26px;height:72px}
.brand img{height:44px;width:auto;filter:brightness(1.12) drop-shadow(0 0 7px rgba(160,200,255,.28))}
.main-nav{display:flex;gap:26px;margin-left:auto}
.main-nav a{color:#c9d6e6;font-size:13.5px;font-weight:600;letter-spacing:.04em;padding:8px 2px;border-bottom:2px solid transparent;transition:.18s}
.main-nav a:hover,.main-nav a.active{color:#fff;border-bottom-color:var(--cobalt)}
.header-actions{display:flex;align-items:center;gap:12px}
.cart-btn{position:relative;background:none;border:1.5px solid rgba(255,255,255,.28);border-radius:10px;color:#fff;width:42px;height:42px;display:grid;place-items:center;cursor:pointer;transition:.18s}
.cart-btn:hover{border-color:var(--cobalt);color:#fff;background:rgba(29,95,208,.25)}
.cart-count{position:absolute;top:-7px;right:-7px;background:var(--cobalt);color:#fff;font-size:10.5px;font-weight:700;min-width:19px;height:19px;border-radius:10px;display:grid;place-items:center;padding:0 4px}
.nav-toggle{display:none;background:none;border:0;width:40px;height:40px;cursor:pointer;flex-direction:column;justify-content:center;gap:5px;align-items:center}
.nav-toggle span{display:block;width:22px;height:2.5px;background:#fff;border-radius:2px}

/* ---------- hero ---------- */
.hero{background:linear-gradient(180deg,#f7fafd 0%,#fff 78%);border-bottom:1px solid var(--line)}
.hero-inner{display:grid;grid-template-columns:1.15fr .85fr;gap:40px;align-items:center;padding:64px 0 58px}
.hero h1{font-size:clamp(30px,4.4vw,50px);font-weight:800;line-height:1.08;letter-spacing:.01em}
.hero h1 em{color:var(--cobalt);font-style:normal}
.hero p.lead{margin-top:18px;color:var(--sub);font-size:16.5px;line-height:1.65;max-width:520px}
.hero-cta{margin-top:30px;display:flex;gap:14px;flex-wrap:wrap}
.hero-art{display:grid;place-items:center;padding:12px}
.hero-art img{max-height:330px;width:auto;filter:drop-shadow(0 18px 40px rgba(19,41,62,.16))}
.chevron-rule{display:flex;align-items:center;gap:14px;margin-top:26px;color:var(--steel);font-size:11.5px;font-weight:700;letter-spacing:.3em}
.chevron-rule::before,.chevron-rule::after{content:"";height:2px;flex:0 0 46px;background:var(--steel);opacity:.5}

/* trust strip */
.trust{border-bottom:1px solid var(--line);background:#fff}
.trust-inner{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;padding:22px 0}
.trust-item{display:flex;gap:12px;align-items:center;font-size:12.5px;font-weight:600;color:var(--sub)}
.trust-item svg{flex:0 0 auto;color:var(--cobalt)}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-family:inherit;font-weight:700;font-size:13.5px;letter-spacing:.05em;border-radius:11px;padding:13px 26px;cursor:pointer;border:1.5px solid transparent;transition:.18s}
.btn-primary{background:var(--cobalt);color:#fff}
.btn-primary:hover{background:#1751b4;box-shadow:0 8px 22px rgba(29,95,208,.32)}
.btn-ghost{border-color:var(--line);color:var(--ink);background:#fff}
.btn-ghost:hover{border-color:var(--cobalt);color:var(--cobalt)}
.btn-block{width:100%}
.btn[disabled]{opacity:.45;pointer-events:none}

/* ---------- sections ---------- */
.section{padding:56px 0}
.section-head{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:26px}
.section-head h2{font-size:24px;font-weight:800;letter-spacing:.01em}
.kicker{color:var(--steel);font-size:11px;font-weight:700;letter-spacing:.28em;text-transform:uppercase;margin-bottom:8px}

/* ---------- catalog ---------- */
.filter-bar{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin-bottom:24px}
.chip{border:1.5px solid var(--line);background:#fff;color:var(--sub);font-family:inherit;font-size:12px;font-weight:600;padding:8px 15px;border-radius:20px;cursor:pointer;transition:.15s}
.chip:hover{border-color:var(--cobalt);color:var(--cobalt)}
.chip.active{background:var(--ink);border-color:var(--ink);color:#fff}
.search-box{margin-left:auto;position:relative}
.search-box input{font-family:inherit;font-size:13px;padding:10px 14px 10px 36px;border:1.5px solid var(--line);border-radius:11px;width:220px;outline:none;transition:.15s}
.search-box input:focus{border-color:var(--cobalt)}
.search-box svg{position:absolute;left:11px;top:50%;transform:translateY(-50%);color:var(--sub)}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:18px}

.card{position:relative;background:#fff;border:1.5px solid rgba(29,95,208,.32);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column;transition:box-shadow .22s,border-color .22s,transform .22s}
@media(hover:hover) and (pointer:fine){
  .card{box-shadow:var(--glow)}
  .card:hover{border-color:rgba(61,139,255,.95);box-shadow:var(--glowup);transform:translateY(-2px)}
}
.card.glow{border-color:rgba(61,139,255,.95);box-shadow:var(--glowup)}
.card .card-ph{background:#fff;aspect-ratio:1/1;display:grid;place-items:center;padding:10px;border-bottom:1px solid var(--ice)}
.card .card-ph img{max-width:100%;max-height:100%;object-fit:contain}
.card .card-ph .fallback{opacity:.2;height:58%}
/* half-white half-navy product card: label art on white, info block on navy */
.card .card-body{padding:14px 16px 15px;display:flex;flex-direction:column;gap:5px;flex:1;background:var(--ink);color:#e8eef6}
.card .cat-tag{font-size:10px;font-weight:700;letter-spacing:.18em;color:#7fb0ff;text-transform:uppercase}
.card h3{font-size:15.5px;font-weight:800;letter-spacing:.01em;line-height:1.25;color:#fff}
.card .cas{font-size:11px;color:#9fb0c8;letter-spacing:.05em;min-height:14px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.card .sizes{display:flex;flex-wrap:wrap;gap:6px;margin-top:2px}
.size-pill{font-size:10.5px;font-weight:700;color:#c9d6e6;border:1.5px solid rgba(255,255,255,.28);padding:3px 9px;border-radius:12px}
.card .price-row{margin-top:auto;display:flex;align-items:end;justify-content:space-between;padding-top:12px}
.price-tbd{font-size:12px;font-weight:700;color:#9fb0c8;letter-spacing:.06em}
.price-from{font-size:10.5px;font-weight:800;color:#9fb0c8;letter-spacing:.05em;text-align:left}
.price-from b{display:block;font-size:15px;color:#fff}
.card .view-link{font-size:12.5px;font-weight:700;color:#7fb0ff}

/* category tiles */
.cat-card{display:flex;flex-direction:column;gap:9px;background:#fff;border:1.5px solid rgba(29,95,208,.45);border-radius:var(--radius);padding:22px;min-height:120px;transition:box-shadow .22s,border-color .22s,transform .22s}
@media(hover:hover) and (pointer:fine){
  .cat-card{box-shadow:var(--glow)}
  .cat-card:hover{border-color:rgba(61,139,255,.95);box-shadow:var(--glowup);transform:translateY(-2px)}
}
.cat-card.glow{border-color:rgba(61,139,255,.95);box-shadow:var(--glowup)}
.cat-card .cat-tag{font-size:10px;font-weight:700;letter-spacing:.18em;color:var(--steel);text-transform:uppercase}
.cat-card h3{font-size:16.5px;font-weight:800;line-height:1.3;color:var(--ink)}
.cat-card .view-link{margin-top:auto;font-size:12.5px;font-weight:700;color:var(--cobalt)}

/* ---------- product page ---------- */
.product-page{display:grid;grid-template-columns:.95fr 1.05fr;gap:44px;padding:46px 0}
.pp-visual{background:var(--ice);border:1.5px solid var(--line);border-radius:18px;display:grid;place-items:center;min-height:340px;padding:30px}
.pp-visual img{max-height:230px;width:auto;opacity:.92}
.pp-info h1{font-size:30px;font-weight:800}
.pp-info .cas{color:var(--sub);font-size:13px;margin-top:6px;letter-spacing:.04em}
.pp-block{margin-top:22px}
.pp-block h4{font-size:11.5px;font-weight:700;letter-spacing:.2em;color:var(--steel);text-transform:uppercase;margin-bottom:10px}
.variant-row{display:flex;flex-wrap:wrap;gap:9px}
.variant{font-family:inherit;border:1.5px solid var(--line);background:#fff;border-radius:11px;padding:10px 16px;font-size:13px;font-weight:700;cursor:pointer;transition:.15s;color:var(--ink)}
.variant:hover{border-color:var(--cobalt)}
.variant.active{border-color:var(--cobalt);background:rgba(29,95,208,.07);color:var(--cobalt)}
.variant small{display:block;font-size:10px;font-weight:600;color:var(--sub);letter-spacing:.06em}
.qty-row{display:flex;align-items:center;gap:14px;margin-top:8px}
.qty{display:inline-flex;border:1.5px solid var(--line);border-radius:11px;overflow:hidden}
.qty button{width:38px;height:44px;background:#fff;border:0;font-size:17px;cursor:pointer;color:var(--ink)}
.qty input{width:52px;text-align:center;border:0;font-family:inherit;font-weight:700;font-size:14px;outline:none}
.pp-price{font-size:22px;font-weight:800;color:var(--ink)}
.pp-price.tbd{font-size:14px;color:var(--sub);font-weight:700;letter-spacing:.05em}
.pp-rue{margin-top:24px;background:var(--ice);border-left:3px solid var(--cobalt);padding:13px 16px;font-size:11.5px;font-weight:700;letter-spacing:.12em;color:var(--ink)}

/* ---------- prose pages ---------- */
.page{max-width:840px;margin:0 auto;padding:52px 22px 70px}
.page-title{font-size:32px;font-weight:800;margin-bottom:22px}
.prose{color:var(--ink);font-size:15px;line-height:1.75}
.prose h2{font-size:20px;font-weight:800;margin:34px 0 12px}
.prose h3{font-size:16px;font-weight:700;margin:24px 0 8px}
.prose p{margin:12px 0}
.prose ul,.prose ol{margin:12px 0 12px 24px}
.prose li{margin:6px 0}
.prose table{border-collapse:collapse;width:100%;margin:16px 0;font-size:13.5px}
.prose th,.prose td{border:1px solid var(--line);padding:9px 12px;text-align:left;vertical-align:top}
.prose th{background:var(--ice);font-weight:700}
.callout{background:rgba(29,95,208,.06);border:1.5px solid rgba(29,95,208,.25);border-radius:12px;padding:16px 18px;margin:18px 0}
.callout-warn{background:var(--ice);border:1.5px solid var(--line);border-left:4px solid var(--ink);border-radius:12px;padding:16px 18px;margin:18px 0}
.faq-item{border:1.5px solid var(--line);border-radius:12px;padding:18px 20px;margin:12px 0;transition:.2s}
@media(hover:hover){.faq-item:hover{border-color:rgba(29,95,208,.5);box-shadow:0 6px 20px rgba(29,95,208,.10)}}
.faq-item.glow{border-color:rgba(61,139,255,.9);box-shadow:var(--glowup)}
.faq-item h3{font-size:15px;font-weight:700;margin:0 0 8px;color:var(--ink)}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:22px}

/* forms */
.form-grid{display:grid;gap:14px;margin:18px 0;max-width:560px}
.form-grid label{font-size:12px;font-weight:700;letter-spacing:.06em;color:var(--sub);display:block;margin-bottom:6px}
.form-grid input,.form-grid textarea,.form-grid select{width:100%;font-family:inherit;font-size:14px;padding:12px 14px;border:1.5px solid var(--line);border-radius:11px;outline:none;transition:.15s;background:#fff;color:var(--ink)}
.form-grid input:focus,.form-grid textarea:focus,.form-grid select:focus{border-color:var(--cobalt)}

/* ---------- cart drawer ---------- */
.drawer-scrim{position:fixed;inset:0;background:rgba(19,41,62,.45);z-index:80}
.cart-drawer{position:fixed;top:0;right:0;bottom:0;width:min(420px,94vw);background:#fff;z-index:90;display:flex;flex-direction:column;box-shadow:-18px 0 50px rgba(19,41,62,.18);animation:slidein .22s ease}
@keyframes slidein{from{transform:translateX(30px);opacity:.4}to{transform:none;opacity:1}}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:20px 22px;border-bottom:1px solid var(--line)}
.drawer-head h3{font-size:17px;font-weight:800}
.drawer-close{background:none;border:0;font-size:26px;cursor:pointer;color:var(--sub);line-height:1}
.drawer-body{flex:1;overflow:auto;padding:16px 22px}
.cart-line{display:flex;gap:12px;align-items:center;padding:12px 0;border-bottom:1px solid var(--ice)}
.cart-line .cl-info{flex:1}
.cart-line .cl-name{font-size:13.5px;font-weight:700}
.cart-line .cl-size{font-size:11.5px;color:var(--sub);margin-top:2px}
.cart-line .cl-qty{display:flex;align-items:center;gap:8px}
.cart-line .cl-qty button{width:26px;height:26px;border:1.5px solid var(--line);background:#fff;border-radius:8px;cursor:pointer;font-size:14px;color:var(--ink)}
.cart-line .cl-remove{background:none;border:0;color:var(--sub);cursor:pointer;font-size:17px}
.cart-empty{text-align:center;color:var(--sub);padding:50px 10px;font-size:14px}
.drawer-foot{border-top:1px solid var(--line);padding:18px 22px}
.cart-total-row{display:flex;justify-content:space-between;font-size:15px;margin-bottom:14px}
.drawer-note{margin-top:12px;text-align:center;font-size:9.5px;font-weight:700;letter-spacing:.12em;color:var(--sub)}

/* ---------- checkout ---------- */
.checkout-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:38px;padding:46px 0}
.pay-tabs{display:flex;gap:10px;margin:14px 0 20px}
.pay-tab{flex:1;border:1.5px solid var(--line);border-radius:12px;background:#fff;padding:14px;font-family:inherit;font-weight:700;font-size:13.5px;cursor:pointer;color:var(--ink);transition:.15s}
.pay-tab.active{border-color:var(--cobalt);background:rgba(29,95,208,.06);color:var(--cobalt)}
.pay-panel{border:1.5px solid var(--line);border-radius:14px;padding:22px}
.order-summary{background:var(--ice);border-radius:14px;padding:22px;height:fit-content}
.order-summary h3{font-size:16px;font-weight:800;margin-bottom:14px}
.sum-line{display:flex;justify-content:space-between;font-size:13.5px;padding:7px 0;border-bottom:1px solid var(--line)}
.sum-line:last-of-type{border-bottom:0;font-weight:800;font-size:15px}

/* ---------- researcher gate ---------- */
.gate{position:fixed;inset:0;background:rgba(19,41,62,.62);backdrop-filter:blur(6px);z-index:200;display:grid;place-items:center;padding:18px}
.gate-card{background:var(--ink);color:#e8eef6;border:1px solid rgba(255,255,255,.1);border-radius:18px;max-width:520px;width:100%;padding:34px 32px;box-shadow:0 30px 80px rgba(4,10,18,.6);max-height:92vh;overflow:auto}
.gate-card img{height:64px;margin:0 auto 18px}
.gate-card h2{font-size:21px;font-weight:800;text-align:center;color:#fff}
.gate-card .g-intro{color:#9fb0c8;font-size:13.5px;line-height:1.6;text-align:center;margin:10px 0 20px}
.gate-card label.g-label{font-size:11.5px;font-weight:700;letter-spacing:.08em;color:#9fb0c8;display:block;margin:0 0 7px}
.gate-card select{width:100%;font-family:inherit;font-size:14px;padding:12px 14px;border:1.5px solid rgba(255,255,255,.22);border-radius:11px;background:#0e1c30;color:#e8eef6;margin-bottom:16px}
.g-check{display:flex;gap:11px;align-items:flex-start;margin:11px 0;font-size:13px;line-height:1.5;color:#e8eef6;cursor:pointer}
.g-check input{margin-top:3px;width:16px;height:16px;accent-color:var(--cobalt);flex:0 0 auto}
.gate-card a{color:#7fb0ff}
.gate-actions{display:flex;gap:12px;margin-top:20px}
.gate-actions .btn{flex:1}
.gate-card .btn-ghost{border-color:rgba(255,255,255,.3);color:#e8eef6;background:transparent}
.gate-card .btn-ghost:hover{border-color:#fff;color:#fff}
.g-foot{text-align:center;font-size:9.5px;font-weight:700;letter-spacing:.14em;color:#7f95af;margin-top:16px}
.g-decline{text-align:center;color:#9fb0c8;font-size:13.5px;line-height:1.6;padding:10px 0}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:#c9d6e6;margin-top:60px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:34px;padding:52px 22px 34px}
.f-col h4{color:#fff;font-size:12px;font-weight:700;letter-spacing:.18em;text-transform:uppercase;margin-bottom:14px}
.f-col a{display:block;color:#c9d6e6;font-size:13px;padding:5px 0;transition:.15s}
.f-col a:hover{color:#fff}
.f-logo{height:96px;width:auto;margin-bottom:14px}
.f-tag{font-size:13px;line-height:1.6;max-width:260px}
.f-rue{margin-top:14px;font-size:10px;font-weight:700;letter-spacing:.13em;color:#7f95af}
.footer-legal{border-top:1px solid rgba(255,255,255,.12);padding:22px;font-size:11px;line-height:1.7;color:#7f95af}
.footer-legal p{margin:6px 0}

/* ---------- responsive ---------- */
@media(max-width:900px){
  .hero-inner{grid-template-columns:1fr;padding:44px 0 40px;text-align:center}
  .hero p.lead{margin-left:auto;margin-right:auto}
  .hero-cta{justify-content:center}
  .hero-art{order:-1}.hero-art img{max-height:210px}
  .chevron-rule{justify-content:center}
  .trust-inner{grid-template-columns:1fr 1fr;gap:12px}
  .product-page,.checkout-grid{grid-template-columns:1fr;padding:30px 0}
  .footer-grid{grid-template-columns:1fr 1fr}
  .two-col{grid-template-columns:1fr}
  .main-nav{position:fixed;inset:72px 0 auto 0;background:var(--ink);flex-direction:column;gap:0;padding:8px 22px 16px;border-bottom:1px solid rgba(255,255,255,.08);box-shadow:0 18px 40px rgba(19,41,62,.35);display:none;z-index:55}
  .main-nav.open{display:flex}
  .main-nav a{padding:13px 2px;border-bottom:1px solid rgba(255,255,255,.08);font-size:15px}
  .nav-toggle{display:flex}
  .search-box{width:100%;margin-left:0}
  .search-box input{width:100%}
}