/* Prosper Research Materials LLC — Professional Lab-Supply Design v2 */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --ink:#1e293b;
  --muted:#64748b;
  --line:#e2e8f0;
  --bg:#ffffff;
  --bg-alt:#f8fafc;
  --accent:#0369a1;
  --accent-dark:#075985;
  --accent-tint:#e0f2fe;
  --warn-bg:#fff7ed;
  --warn-border:#fed7aa;
  --warn-text:#9a3412;
  --radius:8px;
  --radius-lg:12px;
  --maxw:1080px;
  --shadow-sm:0 1px 3px rgba(0,0,0,.06);
  --shadow-md:0 4px 16px rgba(0,0,0,.08);
  --shadow-lg:0 8px 28px rgba(3,105,161,.12);
  --shadow-xl:0 12px 40px rgba(3,105,161,.16);
}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Oxygen,Ubuntu,sans-serif;color:var(--ink);line-height:1.65;background:var(--bg);font-size:16px;-webkit-font-smoothing:antialiased}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
img,svg{display:block;max-width:100%}
.container{max-width:var(--maxw);margin:0 auto;padding:0 20px}
.site-header{background:rgba(255,255,255,.96);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:100;box-shadow:var(--shadow-sm)}
.nav{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:1rem;color:var(--ink);letter-spacing:-.01em}
.brand svg{flex-shrink:0;transition:transform .2s}
.brand:hover svg{transform:scale(1.05)}
.brand:hover{text-decoration:none}
.nav-links{display:flex;align-items:center;gap:28px}
.nav-links a{color:var(--muted);font-weight:500;font-size:.95rem;transition:color .15s;position:relative}
.nav-links a:hover{color:var(--ink);text-decoration:none}
.nav-links a.active{color:var(--accent)}
.nav-links a.active::after{content:"";position:absolute;bottom:-22px;left:0;right:0;height:2px;background:var(--accent);border-radius:1px}
.nav-cta{border:1px solid var(--line);padding:8px 20px;border-radius:var(--radius);color:var(--ink)!important;font-weight:600;transition:all .15s}
.nav-cta:hover{border-color:var(--accent);background:var(--accent-tint);text-decoration:none}
.nav-toggle{display:none;background:none;border:none;font-size:1.4rem;color:var(--ink);cursor:pointer;line-height:1;padding:4px}
.hero{background:var(--bg-alt);border-bottom:1px solid var(--line);padding:64px 0}
.hero h1{font-size:2.2rem;font-weight:800;line-height:1.2;letter-spacing:-.02em;margin-bottom:18px;max-width:640px}
.hero p{font-size:1.1rem;color:var(--muted);max-width:580px;margin-bottom:28px}
.hero-badge{display:inline-block;background:var(--accent-tint);color:var(--accent-dark);font-size:.85rem;font-weight:600;padding:5px 14px;border-radius:100px;margin-bottom:20px}
.btn{display:inline-block;padding:11px 26px;border-radius:var(--radius);font-weight:600;font-size:.95rem;cursor:pointer;border:1px solid transparent;transition:all .2s;text-decoration:none!important}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 2px 8px rgba(3,105,161,.2)}
.btn-primary:hover{background:var(--accent-dark);transform:translateY(-1px);box-shadow:0 4px 14px rgba(3,105,161,.3)}
.btn-outline{background:var(--bg);color:var(--ink);border-color:var(--line)}
.btn-outline:hover{border-color:var(--accent);color:var(--accent);background:var(--accent-tint)}
.btn-sm{padding:6px 16px;font-size:.85rem}
.btn-full{display:block;width:100%;text-align:center}
.section{padding:64px 0}
.section-alt{background:var(--bg-alt)}
.section-head{margin-bottom:40px;position:relative}
.section-head h2{font-size:1.7rem;font-weight:800;letter-spacing:-.02em;margin-bottom:10px}
.section-head p{color:var(--muted);max-width:620px;font-size:1.02rem}
.section-head.center{text-align:center}
.section-head.center p{margin:0 auto}
.section-head::after{content:"";display:block;width:40px;height:3px;background:var(--accent);border-radius:2px;margin-top:16px}
.section-head.center::after{margin:16px auto 0}
.grid{display:grid;gap:20px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.card{background:var(--bg);border:1px solid var(--line);border-radius:var(--radius);padding:28px;transition:all .25s cubic-bezier(.4,0,.2,1)}
.card:hover{border-color:var(--accent);box-shadow:var(--shadow-md);transform:translateY(-2px)}
.card h3{font-size:1.15rem;font-weight:700;margin-bottom:8px}
.card p{color:var(--muted);font-size:.95rem}
.catalog-wrap{overflow-x:auto;border-radius:var(--radius);border:1px solid var(--line);box-shadow:var(--shadow-sm)}
table.catalog{width:100%;border-collapse:collapse;font-size:.95rem;background:var(--bg)}
table.catalog th{text-align:left;font-weight:600;color:var(--muted);font-size:.8rem;text-transform:uppercase;letter-spacing:.05em;padding:14px 16px;border-bottom:2px solid var(--line);background:var(--bg-alt)}
table.catalog td{padding:16px;border-bottom:1px solid var(--line);vertical-align:middle}
table.catalog tbody tr{transition:background .15s}
table.catalog tr:hover td{background:var(--accent-tint)}
table.catalog .pname{font-weight:700;color:var(--ink)}
table.catalog .pname a{color:var(--ink)}
table.catalog .pname a:hover{color:var(--accent)}
table.catalog .cas{font-family:ui-monospace,"SF Mono",Menlo,monospace;font-size:.9rem;color:var(--muted)}
table.catalog .form{color:var(--muted)}
table.catalog .quote-link{white-space:nowrap}
.product-head{border-bottom:1px solid var(--line);padding-bottom:32px;margin-bottom:32px}
.product-head h1{font-size:1.9rem;font-weight:800;letter-spacing:-.02em;margin-bottom:6px}
.product-head .subtitle{color:var(--muted);font-size:1.05rem}
.spec-table{width:100%;border-collapse:collapse;margin-bottom:32px;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm)}
.spec-table th,.spec-table td{text-align:left;padding:12px 16px;border-bottom:1px solid var(--line);font-size:.95rem}
.spec-table th{width:180px;font-weight:600;color:var(--muted);font-size:.85rem;text-transform:uppercase;letter-spacing:.04em;background:var(--bg-alt)}
.spec-table td{font-family:ui-monospace,"SF Mono",Menlo,monospace;font-size:.92rem}
.product-section{margin-bottom:32px}
.product-section h2{font-size:1.2rem;font-weight:700;margin-bottom:12px}
.product-section p{color:var(--muted);max-width:680px}
.disclaimer{background:var(--warn-bg);border:1px solid var(--warn-border);border-radius:var(--radius);padding:20px 24px;margin:24px 0;border-left:4px solid #f59e0b}
.disclaimer p{color:var(--warn-text);font-size:.9rem;margin:0}
.disclaimer strong{font-weight:700}
.info-box{background:var(--bg-alt);border:1px solid var(--line);border-radius:var(--radius);padding:24px}
.info-box h3{font-size:1rem;font-weight:700;margin-bottom:8px}
.info-box p{color:var(--muted);font-size:.92rem;margin-bottom:0}
.quote-form{max-width:560px}
.form-group{margin-bottom:18px}
.form-group label{display:block;font-weight:600;font-size:.9rem;margin-bottom:5px;color:var(--ink)}
.form-group input,.form-group textarea,.form-group select{width:100%;padding:10px 14px;border:1px solid var(--line);border-radius:var(--radius);font-size:.95rem;font-family:inherit;transition:all .15s}
.form-group input:focus,.form-group textarea:focus,.form-group select:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(3,105,161,.1)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-note{font-size:.82rem;color:var(--muted);margin-top:12px}
.quality-list{list-style:none;max-width:680px}
.quality-list li{padding:18px 0;border-bottom:1px solid var(--line);display:flex;gap:16px;align-items:flex-start;transition:background .15s;border-radius:var(--radius);padding-left:8px;padding-right:8px}
.quality-list li:hover{background:var(--bg-alt)}
.quality-list li:last-child{border-bottom:none}
.quality-list .qicon{flex-shrink:0;width:32px;height:32px;background:var(--accent);border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:.9rem;box-shadow:0 2px 8px rgba(3,105,161,.2)}
.quality-list .qtext{flex:1}
.quality-list .qtext strong{display:block;font-weight:700;margin-bottom:3px}
.quality-list .qtext span{color:var(--muted);font-size:.95rem}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
.contact-info dl{margin-top:24px}
.contact-info dt{font-weight:600;font-size:.85rem;text-transform:uppercase;letter-spacing:.04em;color:var(--muted);margin-bottom:4px;margin-top:18px}
.contact-info dt:first-child{margin-top:0}
.contact-info dd{font-size:1rem;margin:0}
.contact-info dd a{font-family:ui-monospace,"SF Mono",Menlo,monospace;font-size:.95rem}
.stats-row{display:flex;gap:48px;margin-top:36px;flex-wrap:wrap}
.stat-item .stat-num{font-size:2rem;font-weight:800;color:var(--accent)}
.stat-item .stat-lbl{color:var(--muted);font-size:.88rem;margin-top:2px}
.site-footer{background:var(--ink);color:#cbd5e1;padding:48px 0 28px;margin-top:0}
.footer-nav{display:flex;gap:24px;margin-bottom:20px;flex-wrap:wrap}
.footer-nav a{color:#94a3b8;font-size:.9rem}
.footer-nav a:hover{color:#fff}
.footer-disclaimer{border-top:1px solid #334155;padding-top:20px;margin-top:20px}
.footer-disclaimer p{font-size:.85rem;color:#fbbf24;margin:0;line-height:1.5;font-weight:500}
.footer-copy{font-size:.82rem;color:#64748b;margin-top:14px}
.hero-gradient{background:linear-gradient(135deg,#0369a1 0%,#075985 55%,#0c4a6e 100%);color:#fff;padding:80px 0 72px;position:relative;overflow:hidden}
.hero-gradient::before{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background-image:url("data:image/svg+xml,%3Csvg width='80' height='80' viewBox='0 0 80 80' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Ccircle cx='40' cy='40' r='2'/%3E%3Ccircle cx='20' cy='20' r='1'/%3E%3Ccircle cx='60' cy='60' r='1'/%3E%3Cpath d='M40 40L20 20M40 40L60 60M40 40L60 20M40 40L20 60' stroke='%23ffffff' stroke-opacity='0.03' stroke-width='1' fill='none'/%3E%3C/g%3E%3C/svg%3E");pointer-events:none}
.hero-gradient h1{color:#fff;font-size:3rem;font-weight:800;line-height:1.15;letter-spacing:-.025em;margin-bottom:18px;max-width:680px;position:relative;z-index:1}
.hero-gradient p{color:rgba(255,255,255,.85);font-size:1.15rem;max-width:600px;margin-bottom:28px;position:relative;z-index:1}
.hero-badge-lg{background:rgba(255,255,255,.15);color:#fff;border:1px solid rgba(255,255,255,.25);font-size:.88rem;padding:6px 16px;margin-bottom:24px;position:relative;z-index:1;backdrop-filter:blur(4px)}
.btn-lg{padding:14px 32px;font-size:1.02rem}
.btn-outline-light{background:rgba(255,255,255,.1);color:#fff;border:1px solid rgba(255,255,255,.3);backdrop-filter:blur(4px)}
.btn-outline-light:hover{background:rgba(255,255,255,.18);border-color:rgba(255,255,255,.5);color:#fff;transform:translateY(-1px)}
.hero-gradient .btn-primary{background:#fff;color:var(--accent-dark)}
.hero-gradient .btn-primary:hover{background:rgba(255,255,255,.92);transform:translateY(-1px);box-shadow:0 4px 20px rgba(0,0,0,.15)}
.trust-badges{display:flex;gap:16px;margin-top:40px;flex-wrap:wrap;position:relative;z-index:1}
.trust-badge{display:flex;align-items:center;gap:12px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.15);border-radius:12px;padding:14px 20px;transition:all .25s;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px)}
.trust-badge:hover{background:rgba(255,255,255,.14);transform:translateY(-2px);box-shadow:0 4px 20px rgba(0,0,0,.15)}
.tb-icon{width:40px;height:40px;background:rgba(255,255,255,.12);border-radius:50%;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.tb-text{font-size:.92rem;color:rgba(255,255,255,.95);font-weight:600;line-height:1.3}
.tb-sub{font-size:.78rem;color:rgba(255,255,255,.6);font-weight:400;line-height:1.3}
.card-enhanced{position:relative;padding-top:56px;overflow:hidden}
.card-enhanced::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--accent),var(--accent-dark));transform:scaleX(0);transform-origin:left;transition:transform .3s}
.card-enhanced:hover::before{transform:scaleX(1)}
.card-icon{position:absolute;top:24px;left:28px;width:36px;height:36px;background:var(--accent-tint);border-radius:10px;display:flex;align-items:center;justify-content:center;transition:all .25s}
.card-enhanced:hover .card-icon{background:var(--accent);transform:scale(1.05)}
.card-enhanced:hover .card-icon svg{stroke:#fff}
.card-enhanced h3{font-size:1.2rem}
.card-enhanced .btn{margin-top:12px}
.product-card{padding:24px;transition:all .25s cubic-bezier(.4,0,.2,1);border-radius:10px;position:relative;cursor:pointer}
.product-card:hover{border-color:var(--accent);box-shadow:var(--shadow-lg);transform:translateY(-3px)}
.product-card h3{font-size:1.15rem;font-weight:700;margin-bottom:4px}
.product-card h3 a{color:var(--ink)}
.product-card h3 a:hover{color:var(--accent);text-decoration:none}
.pc-cas{font-family:ui-monospace,"SF Mono",Menlo,monospace;font-size:.82rem;color:var(--muted);margin-bottom:8px}
.pc-sizes{color:var(--accent);font-size:.9rem;font-weight:600}
.product-card::after{content:"";position:absolute;bottom:24px;right:24px;width:20px;height:20px;background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='20' height='20' viewBox='0 0 24 24' fill='none' stroke='%230369a1' stroke-width='2'%3E%3Cpath d='M5 12h14M12 5l7 7-7 7'/%3E%3C/svg%3E") no-repeat center;opacity:0;transition:opacity .25s,transform .25s}
.product-card:hover::after{opacity:1;transform:translateX(4px)}
.quote-bar{background:linear-gradient(135deg,var(--accent) 0%,var(--accent-dark) 100%);padding:36px 0;text-align:center;position:relative;overflow:hidden}
.quote-bar::before{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background-image:url("data:image/svg+xml,%3Csvg width='40' height='40' viewBox='0 0 40 40' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M20 18v-2h-2v2h-2v2h2v2h2v-2h2v-2h-2z'/%3E%3C/g%3E%3C/svg%3E");pointer-events:none}
.quote-bar p{color:#fff;font-size:1.15rem;font-weight:600;margin-bottom:14px;position:relative;z-index:1}
.btn-white{background:#fff;color:var(--accent);font-weight:600;position:relative;z-index:1}
.btn-white:hover{background:rgba(255,255,255,.92);color:var(--accent-dark);transform:translateY(-1px);box-shadow:0 4px 14px rgba(0,0,0,.15)}
.footer-cols{display:grid;grid-template-columns:2fr 1fr 1fr;gap:40px;margin-bottom:32px}
.footer-col-brand .footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:12px}
.footer-col-brand .footer-brand span{font-weight:700;color:#fff;font-size:1rem}
.footer-desc{font-size:.88rem;color:#94a3b8;line-height:1.6;margin:0}
.footer-col h4{color:#fff;font-size:.8rem;text-transform:uppercase;letter-spacing:.06em;margin-bottom:14px;font-weight:600}
.footer-col ul{list-style:none;padding:0;margin:0}
.footer-col ul li{margin-bottom:8px;color:#94a3b8;font-size:.9rem}
.footer-col ul li a{color:#94a3b8;font-size:.9rem}
.footer-col ul li a:hover{color:#fff;text-decoration:none}
.badge-soon{display:inline-block;background:#fef3c7;color:#92400e;border:1px solid #fcd34d;font-size:.8rem;font-weight:600;padding:4px 12px;border-radius:100px;white-space:nowrap}
.presentations{width:100%;border-collapse:collapse;margin-bottom:32px;font-size:.95rem;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm)}
.presentations th{text-align:left;font-weight:600;color:var(--muted);font-size:.8rem;text-transform:uppercase;letter-spacing:.05em;padding:12px 16px;border-bottom:2px solid var(--line);background:var(--bg-alt)}
.presentations td{padding:14px 16px;border-bottom:1px solid var(--line);vertical-align:middle}
.presentations tr:hover td{background:var(--accent-tint)}
.research-list{list-style:disc;padding-left:22px;max-width:680px}
.research-list li{color:var(--muted);font-size:.95rem;margin-bottom:8px;line-height:1.6}
.doc-list{list-style:none;max-width:680px}
.doc-list li{padding:10px 0;border-bottom:1px solid var(--line);color:var(--muted);font-size:.92rem}
.doc-list li:last-child{border-bottom:none}
.checkbox-group{margin-bottom:18px}
.checkbox-group label{display:flex;align-items:flex-start;gap:8px;font-size:.9rem;color:var(--ink);font-weight:400}
.checkbox-group input{width:auto;margin-top:3px}
.cta-row{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:8px;position:relative;z-index:1}
.order-steps{list-style:decimal;padding-left:20px;margin:12px 0}
.order-steps li{padding:4px 0;color:var(--ink);font-size:.95rem}
.catalog-note{color:var(--muted);font-size:.9rem;margin-top:12px;font-style:italic}
.card-meta{color:var(--muted);font-size:.9rem;margin-top:4px}
@keyframes fadeInUp{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}
.hero-gradient .hero-badge-lg,.hero-gradient h1,.hero-gradient p,.hero-gradient .cta-row,.hero-gradient .trust-badges{animation:fadeInUp .6s ease-out both}
.hero-gradient h1{animation-delay:.1s}
.hero-gradient p{animation-delay:.2s}
.hero-gradient .cta-row{animation-delay:.3s}
.hero-gradient .trust-badges{animation-delay:.4s}
@media(max-width:768px){
.nav-toggle{display:block}
.nav-links{display:none;position:absolute;top:64px;left:0;right:0;background:var(--bg);border-bottom:1px solid var(--line);flex-direction:column;gap:0;padding:0;box-shadow:var(--shadow-md)}
.nav-links.open{display:flex}
.nav-links a{padding:14px 20px;border-bottom:1px solid var(--line);width:100%}
.nav-links a.active::after{display:none}
.nav-links a.nav-cta{margin:12px 20px;width:auto;text-align:center}
.hero{padding:48px 0}
.hero h1{font-size:1.6rem}
.hero p{font-size:1rem}
.hero-gradient{padding:56px 0 52px}
.hero-gradient h1{font-size:2rem}
.hero-gradient .cta-row{flex-direction:column}
.hero-gradient .cta-row .btn{width:100%;text-align:center}
.trust-badges{flex-direction:column}
.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
.contact-grid{grid-template-columns:1fr;gap:32px}
.form-row{grid-template-columns:1fr}
.section{padding:48px 0}
.section-head h2{font-size:1.4rem}
table.catalog{font-size:.85rem}
table.catalog th,table.catalog td{padding:10px 8px}
.spec-table th{width:120px}
.footer-cols{grid-template-columns:1fr;gap:28px}
.stat-item .stat-num{font-size:1.6rem}
.product-head h1{font-size:1.5rem}
.cta-row{flex-direction:column}
.cta-row .btn{width:100%;text-align:center}
}
/* Age Gate */
.age-gate-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(15,23,42,0.88);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);z-index:9999;display:flex;align-items:center;justify-content:center;padding:20px}
.age-gate-card{background:#fff;border-radius:16px;padding:40px 36px;max-width:460px;text-align:center;box-shadow:0 20px 60px rgba(0,0,0,0.3);animation:agFade .4s ease-out}
@keyframes agFade{from{opacity:0;transform:scale(0.95) translateY(10px)}to{opacity:1;transform:scale(1) translateY(0)}}
.age-gate-icon{margin-bottom:20px;display:flex;justify-content:center}
.age-gate-card h2{font-size:1.5rem;font-weight:800;color:#1e293b;margin-bottom:12px;letter-spacing:-.02em}
.age-gate-card p{color:#64748b;font-size:.95rem;margin-bottom:12px;line-height:1.6}
.age-gate-confirm{font-weight:600;color:#1e293b}
.age-gate-buttons{display:flex;gap:12px;justify-content:center;margin-top:24px}
/* Product Hero with Vial */
.product-hero-grid{display:grid;grid-template-columns:1fr auto;gap:48px;align-items:center}
.product-hero-vial{display:flex;justify-content:center;align-items:center;opacity:0;animation:vialFade .6s ease-out .3s both}
@keyframes vialFade{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}
@media(max-width:768px){.product-hero-grid{grid-template-columns:1fr;gap:24px}.product-hero-vial{display:none}}