/* Structural chrome shared by every theme. Palette/hero/cards live in theme.css.
   Themes set CSS variables: --bg --fg --muted --accent --accent-ink --card --line --radius --font */
:root{
  --bg:#0a0f1c; --fg:#eaf0fb; --muted:#93a2bd; --accent:#4f8ff7; --accent-ink:#04121a;
  --card:#0f1728; --line:rgba(255,255,255,.1); --radius:14px;
  --font:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--fg);font-family:var(--font);line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img,svg{max-width:100%}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px}
.eyebrow{font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:var(--accent);font-weight:700;margin-bottom:12px}
h1,h2,h3{line-height:1.1;letter-spacing:-.01em}
.section-head{margin-bottom:32px}
.section-head h2{font-size:clamp(26px,3.5vw,40px)}
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 22px;border-radius:100px;font-weight:700;font-size:14px;cursor:pointer;border:1px solid transparent;font-family:inherit;transition:.15s;background:none;color:var(--fg)}
.btn-primary{background:var(--accent);color:var(--accent-ink)}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px)}
.btn-ghost{border-color:var(--line);color:var(--fg)}
.btn-ghost:hover{border-color:var(--accent)}

/* header */
.site-header{position:sticky;top:0;z-index:40;background:color-mix(in srgb,var(--bg) 86%,transparent);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:72px;gap:20px}
.brand .brand-name{font-weight:800;font-size:19px}
.nav-links{display:flex;gap:26px}
.nav-links a{color:var(--muted);font-size:15px}
.nav-links a:hover{color:var(--fg)}
.nav-actions{display:flex;align-items:center;gap:14px}
.cart-btn{position:relative;background:none;border:none;color:var(--fg);cursor:pointer;font-size:20px}
.cart-count{position:absolute;top:-6px;right:-8px;background:var(--accent);color:var(--accent-ink);font-size:11px;font-weight:800;min-width:18px;height:18px;border-radius:10px;display:flex;align-items:center;justify-content:center;padding:0 4px}
@media(max-width:760px){.nav-links{display:none}}

/* announcement marquee */
.announcement{background:color-mix(in srgb,var(--card) 70%,#000);border-bottom:1px solid var(--line);overflow:hidden;white-space:nowrap;font-size:13px;color:var(--muted)}
.ann-track{display:inline-flex;padding:8px 0;animation:marq 34s linear infinite}
.ann-track span{padding:0 24px;border-right:1px solid var(--line)}
.ann-track b{color:var(--accent)}
@keyframes marq{from{transform:translateX(0)}to{transform:translateX(-50%)}}

/* sections */
section{padding:72px 0}
.catalogue .section-head{text-align:center;max-width:640px;margin:0 auto 32px}

/* category filter */
.cat-filter{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;margin-bottom:34px}
.cat-chip{padding:8px 16px;border-radius:100px;border:1px solid var(--line);background:none;color:var(--muted);font-family:inherit;font-size:13px;font-weight:600;cursor:pointer;transition:.15s}
.cat-chip.is-active,.cat-chip:hover{background:var(--accent);color:var(--accent-ink);border-color:var(--accent)}

/* product grid + card (themeable) */
.product-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
@media(max-width:1000px){.product-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.product-grid{grid-template-columns:1fr}}
.pcard{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column;transition:.18s}
.pcard:hover{transform:translateY(-4px);border-color:var(--accent)}
.pcard-media{position:relative;aspect-ratio:1/.86;display:flex;align-items:center;justify-content:center;background:linear-gradient(160deg,#eef2f8,#cdd7e6)}
.pcard-media .vial{height:74%}
.pcard-new{position:absolute;top:12px;left:12px;background:var(--accent);color:var(--accent-ink);font-size:11px;font-weight:800;padding:3px 10px;border-radius:100px}
.pcard-body{padding:16px;display:flex;flex-direction:column;flex:1}
.pcard-cat{font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);font-weight:700}
.pcard-stock{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;margin:8px 0;width:fit-content;padding:2px 9px;border-radius:100px;border:1px solid var(--line)}
.pcard-stock .dot{width:7px;height:7px;border-radius:50%;background:currentColor}
.pcard-stock.in{color:#37e0a6}.pcard-stock.low{color:#ffb454}.pcard-stock.out{color:#ff6b6b}
.pcard-price{font-size:22px;font-weight:800}
.pcard-price span{font-size:12px;color:var(--muted);font-weight:500}
.pcard-name{font-size:18px;font-weight:800;margin:6px 0}
.pcard-desc{font-size:13px;color:var(--muted);flex:1;margin-bottom:12px}
.pcard-chips{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:14px}
.chip{font-size:12px;font-weight:600;padding:3px 9px;border-radius:7px;background:color-mix(in srgb,var(--card) 60%,#000);border:1px solid var(--line);color:var(--muted)}
.chip.pur{color:var(--accent)}
.pcard-actions{display:flex;gap:8px}
.pcard-actions .btn{flex:1;justify-content:center;padding:10px 12px;font-size:13px}

/* quality */
.quality-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
@media(max-width:900px){.quality-grid{grid-template-columns:1fr 1fr}}
.q-item{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px}
.q-item h3{font-size:16px;margin-bottom:6px}
.q-item p{font-size:13px;color:var(--muted)}

/* reviews */
.review-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
@media(max-width:900px){.review-grid{grid-template-columns:1fr 1fr}}
.review{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px}
.review .stars{color:#ffb454;margin-bottom:10px}
.review blockquote{font-size:14px;color:var(--fg)}
.review figcaption{font-size:12px;color:var(--muted);margin-top:12px}

/* contact */
.contact-form{display:grid;gap:12px;max-width:520px}
.contact-form input,.contact-form textarea{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:12px 14px;color:var(--fg);font-family:inherit;font-size:14px}
.contact-form textarea{min-height:110px;resize:vertical}
.contact-form .sms-optin{display:flex;gap:9px;align-items:flex-start;font-size:13px;color:var(--muted);text-align:left;line-height:1.4;margin:-2px 0}
.contact-form input[type="checkbox"]{width:16px;height:16px;min-width:16px;padding:0;margin-top:1px;accent-color:var(--accent,#4f8ff7)}
.contact-form .sms-disclosure{font-size:11.5px;color:var(--muted);line-height:1.55;text-align:left;margin:2px 0 0}

/* footer */
.site-footer{border-top:1px solid var(--line);padding:48px 0 30px;background:color-mix(in srgb,var(--card) 60%,var(--bg))}
.footer-grid{display:grid;grid-template-columns:1fr 1fr;gap:30px}
.footer-grid p{color:var(--muted);font-size:14px;margin-top:10px}
.foot-fruo{font-size:13px;color:var(--muted)}
.foot-contact{margin-top:10px;color:var(--accent)}
.foot-bottom{margin-top:26px;padding-top:20px;border-top:1px solid var(--line);color:var(--muted);font-size:13px}

/* hero vial illustration (themeable via --accent) */
.hero-vial{width:100%;max-width:430px;aspect-ratio:4/5;height:auto;display:block;margin:0 auto;object-fit:cover;object-position:56% 44%;border-radius:22px;border:1px solid var(--line);box-shadow:0 30px 70px rgba(0,0,0,.45),0 0 0 6px color-mix(in srgb,var(--accent) 14%,transparent);background:#0a0f18}
.hv-liq-top{stop-color:var(--accent);stop-opacity:.5}
.hv-liq-bot{stop-color:var(--accent);stop-opacity:.92}
.hv-liquid-line{stroke:var(--accent);fill:none;stroke-width:3;opacity:.85}
.hv-ring{fill:var(--accent)}
.hv-purity{fill:var(--accent)}
.hv-mol{stroke:var(--accent);opacity:.26}
.hv-node{fill:var(--accent);stroke:none}
.hv-glow-in{stop-color:var(--accent);stop-opacity:.20}
.hv-glow-out{stop-color:var(--accent);stop-opacity:0}
.hero-figure{position:relative;display:flex;align-items:center;justify-content:center}
.purity-float{position:absolute;right:6%;bottom:14%;background:color-mix(in srgb,var(--card) 88%,transparent);border:1px solid var(--line);border-radius:16px;padding:14px 18px;backdrop-filter:blur(8px)}
.purity-float .pf-big{font-size:30px;font-weight:900;line-height:1;color:var(--accent)}
.purity-float .pf-sub{font-size:12px;color:var(--muted);margin-top:4px}

/* age gate */
.age-gate{position:fixed;inset:0;z-index:200;background:color-mix(in srgb,var(--bg) 92%,#000);backdrop-filter:blur(10px);display:flex;align-items:center;justify-content:center;padding:24px}
.age-gate.hidden{display:none}
.age-box{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:40px;max-width:440px;text-align:center}
.age-box h2{font-size:26px;margin:8px 0 14px}
.age-copy{color:var(--muted);font-size:14px;margin-bottom:20px}
.age-check{display:flex;gap:10px;text-align:left;font-size:13px;color:var(--muted);margin-bottom:20px;cursor:pointer}
.age-check input{margin-top:3px;width:18px;height:18px;flex:none;accent-color:var(--accent)}
.age-box .btn{width:100%;justify-content:center;margin-bottom:10px}
.age-box .btn:disabled{opacity:.4;cursor:not-allowed}
.age-exit{display:block;color:var(--muted);font-size:13px}

/* cart drawer */
.cart-overlay{position:fixed;inset:0;background:rgba(0,0,0,.6);z-index:90;opacity:0;pointer-events:none;transition:.25s}
.cart-overlay.open{opacity:1;pointer-events:auto}
.cart-drawer{position:fixed;top:0;right:0;height:100%;width:390px;max-width:92vw;background:var(--bg);border-left:1px solid var(--line);z-index:100;transform:translateX(100%);transition:.28s;display:flex;flex-direction:column}
.cart-drawer.open{transform:translateX(0)}
.cart-head{display:flex;justify-content:space-between;align-items:center;padding:20px 22px;border-bottom:1px solid var(--line)}
.cart-close{background:none;border:none;color:var(--muted);font-size:26px;cursor:pointer;line-height:1}
.cart-body{flex:1;overflow-y:auto;padding:12px 22px}
.cart-empty{color:var(--muted);text-align:center;padding:50px 0}
.cart-item{padding:14px 0;border-bottom:1px solid var(--line)}
.ci-name{font-weight:700;font-size:14px}
.ci-meta{font-size:12px;color:var(--muted)}
.ci-qty{display:flex;align-items:center;gap:10px;margin-top:6px}
.ci-qty button{width:24px;height:24px;border-radius:7px;background:var(--card);border:1px solid var(--line);color:var(--fg);cursor:pointer}
.ci-line{margin-left:auto;font-weight:700}
.cart-foot{padding:20px 22px;border-top:1px solid var(--line)}
.cart-subtotal{display:flex;justify-content:space-between;font-weight:800;font-size:17px;margin-bottom:14px}
.cart-foot form{display:grid;gap:10px}
.cart-foot input{background:var(--card);border:1px solid var(--line);border-radius:9px;padding:11px 13px;color:var(--fg);font-family:inherit;font-size:14px}
.btn-checkout{width:100%;justify-content:center}
.cart-note{font-size:11px;color:var(--muted);text-align:center;margin-top:10px}

/* Blog */
.blog-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
@media(max-width:900px){.blog-grid{grid-template-columns:1fr}}
.blog-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;display:block;transition:.18s}
.blog-card:hover{transform:translateY(-4px);border-color:var(--accent)}
.blog-card-img svg{display:block;width:100%;height:auto}
.blog-card-img img{display:block;width:100%;height:190px;object-fit:cover}
.blog-card-body{padding:18px}
.blog-card-body h3{font-size:18px;margin-bottom:8px}
.blog-card-body p{font-size:14px;color:var(--muted)}
.blog-date{display:block;font-size:12px;color:var(--muted);margin-top:12px}
.blog-hero{max-width:1000px;margin:0 auto 10px}
.blog-hero svg{display:block;width:100%;height:auto;border-radius:var(--radius)}
.blog-hero img,.blog-hero-img{display:block;width:100%;height:auto;max-height:440px;object-fit:cover;border-radius:var(--radius)}
.blog-narrow{max-width:760px}
.blog-back{display:inline-block;color:var(--accent);font-size:14px;margin:20px 0}
.blog-content{font-size:17px;line-height:1.75}
.blog-content h1{font-size:34px;margin:10px 0 18px}
.blog-content h2{font-size:24px;margin:28px 0 12px}
.blog-content h3{font-size:19px;margin:22px 0 10px}
.blog-content p{margin:0 0 16px;color:var(--fg)}
.blog-content ul{margin:0 0 16px 22px;color:var(--fg)}
.blog-content li{margin-bottom:6px}
.blog-content hr{border:none;border-top:1px solid var(--line);margin:24px 0}
.blog-content em{color:var(--muted)}
.blog-content a{color:var(--accent)}
.blog-more{margin-top:40px;border-top:1px solid var(--line);padding-top:20px}
.blog-more h3{margin-bottom:12px}
.blog-more a{display:block;color:var(--accent);margin-bottom:8px}

/* AI support widget */
.ai-hp{position:absolute!important;left:-9999px!important;width:1px;height:1px;opacity:0;pointer-events:none}
.ai-widget{position:fixed;right:22px;bottom:22px;z-index:70}
.ai-fab{width:56px;height:56px;border-radius:50%;border:none;cursor:pointer;background:var(--accent);color:var(--accent-ink);display:flex;align-items:center;justify-content:center;box-shadow:0 12px 30px rgba(0,0,0,.35)}
.ai-fab:hover{filter:brightness(1.07);transform:translateY(-2px)}
.ai-panel{position:absolute;right:0;bottom:70px;width:340px;max-width:86vw;background:var(--card);border:1px solid var(--line);border-radius:16px;overflow:hidden;box-shadow:0 24px 60px rgba(0,0,0,.5);display:flex;flex-direction:column}
.ai-panel[hidden]{display:none}
.ai-head{display:flex;justify-content:space-between;align-items:center;padding:14px 16px;border-bottom:1px solid var(--line)}
.ai-head b{font-size:14px}.ai-sub{display:block;font-size:11px;color:var(--muted)}
.ai-x{background:none;border:none;color:var(--muted);font-size:22px;cursor:pointer;line-height:1}
.ai-log{max-height:340px;min-height:150px;overflow-y:auto;padding:14px;display:flex;flex-direction:column;gap:9px}
.ai-msg{max-width:82%;padding:9px 12px;border-radius:13px;font-size:13.5px;line-height:1.5}
.ai-msg.bot{align-self:flex-start;background:color-mix(in srgb,var(--card) 55%,#000);border:1px solid var(--line)}
.ai-msg.me{align-self:flex-end;background:var(--accent);color:var(--accent-ink)}
.ai-msg.thinking{opacity:.6}
.ai-form{display:flex;gap:8px;padding:12px;border-top:1px solid var(--line)}
.ai-form input[name=question]{flex:1;background:var(--bg);border:1px solid var(--line);border-radius:10px;padding:10px 12px;color:var(--fg);font-family:inherit;font-size:14px}
.ai-form button{background:var(--accent);color:var(--accent-ink);border:none;border-radius:10px;width:40px;font-size:18px;cursor:pointer}

/* cookie + toast */
.cookie{position:fixed;left:24px;right:24px;bottom:24px;max-width:720px;margin:0 auto;z-index:80;background:var(--card);border:1px solid var(--line);border-radius:14px;padding:16px 20px;display:flex;gap:18px;align-items:center;justify-content:space-between;flex-wrap:wrap;box-shadow:0 20px 60px rgba(0,0,0,.5)}
.cookie.hidden{display:none}
.cookie p{font-size:13px;color:var(--muted);flex:1;min-width:220px}
.cookie-btns{display:flex;gap:10px}
.toast{position:fixed;bottom:26px;left:50%;transform:translateX(-50%) translateY(20px);background:var(--card);border:1px solid var(--accent);color:var(--fg);padding:12px 22px;border-radius:100px;font-size:14px;font-weight:600;z-index:150;opacity:0;pointer-events:none;transition:.25s}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}

/* ============================================================
   Product detail page (.pdp-*) — shared across all 8 themes.
   Uses each theme's CSS variables so it themes automatically.
   ============================================================ */
.pdp{padding:28px 0 60px}
.breadcrumb{display:flex;gap:8px;align-items:center;flex-wrap:wrap;font-size:13px;color:var(--muted);margin:0 0 22px}
.breadcrumb a{color:var(--muted);text-decoration:none}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb .crumb-cur{color:var(--fg);font-weight:600}
.pdp-top{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);gap:40px;align-items:start}
.pdp-media{position:relative;border-radius:calc(var(--radius) + 4px);overflow:hidden;border:1px solid var(--line);background:var(--card);aspect-ratio:1/1;display:block}
.pdp-photo{width:100%;height:100%;object-fit:cover;object-position:56% 44%;display:block}
.pdp-flag{position:absolute;top:14px;left:14px;z-index:2;background:var(--accent);color:var(--accent-ink);font-weight:800;font-size:12px;padding:5px 12px;border-radius:999px;letter-spacing:.02em}
.pdp-media-badge{position:absolute;left:14px;bottom:14px;z-index:2;display:inline-flex;align-items:center;gap:7px;background:rgba(8,12,23,.72);color:#eaf0fb;border:1px solid rgba(255,255,255,.18);backdrop-filter:blur(6px);padding:8px 13px;border-radius:999px;font-size:12.5px;font-weight:700}
.pdp-media-badge svg{color:#37e0a6}
.pdp-buy{min-width:0}
.pdp-cat{font-size:12.5px;font-weight:800;letter-spacing:.14em;text-transform:uppercase}
.pdp-name{font-size:clamp(30px,4.4vw,46px);line-height:1.05;margin:8px 0 0;font-weight:800;letter-spacing:-.01em}
.pdp-syn{color:var(--muted);font-size:13.5px;margin:8px 0 0}
.pdp-lead{color:var(--muted);font-size:16px;line-height:1.55;margin:16px 0 0;max-width:52ch}
.pdp-pricerow{display:flex;align-items:center;justify-content:space-between;gap:16px;margin:22px 0 0;flex-wrap:wrap}
.pdp-price{font-size:30px;font-weight:800}
.pdp-price span{font-size:14px;font-weight:600;color:var(--muted)}
.pdp-stock{display:inline-flex;align-items:center;gap:7px;font-size:13.5px;font-weight:700;color:var(--muted)}
.pdp-stock .dot{width:9px;height:9px;border-radius:50%;background:#37e0a6}
.pdp-stock.low .dot{background:#ffb454}.pdp-stock.out .dot{background:#ff6b6b}
.pdp-attrs{display:flex;flex-wrap:wrap;gap:8px;margin:18px 0 0}
.pdp-attrs .chip{background:color-mix(in srgb,var(--fg) 6%,transparent);border:1px solid var(--line);border-radius:999px;padding:6px 12px;font-size:13px;font-weight:600}
.pdp-attrs .chip.pur{border-color:color-mix(in srgb,var(--accent) 45%,transparent);color:var(--accent)}
.pdp-qty{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin:24px 0 0}
.pdp-qty-label{font-weight:700;font-size:14px}
.qty-stepper{display:inline-flex;align-items:center;border:1px solid var(--line);border-radius:12px;overflow:hidden}
.qty-stepper button{width:42px;height:44px;border:0;background:color-mix(in srgb,var(--fg) 5%,transparent);color:var(--fg);font-size:20px;cursor:pointer;line-height:1}
.qty-stepper button:hover{background:color-mix(in srgb,var(--accent) 16%,transparent)}
.qty-stepper input{width:56px;height:44px;border:0;background:transparent;color:var(--fg);text-align:center;font-size:16px;font-weight:700;-moz-appearance:textfield}
.qty-stepper input::-webkit-outer-spin-button,.qty-stepper input::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}
.pdp-tier-hint{font-size:12.5px;color:var(--muted);font-weight:600}
.pdp-add{margin:18px 0 0;width:100%;font-size:16px;padding:15px 22px}
.pdp-bulk{width:100%;border-collapse:collapse;margin:22px 0 0;font-size:13.5px;border:1px solid var(--line);border-radius:12px;overflow:hidden}
.pdp-bulk caption{caption-side:top;text-align:left;font-size:12.5px;color:var(--muted);padding:0 0 8px;font-weight:600}
.pdp-bulk th,.pdp-bulk td{padding:9px 14px;text-align:left;border-bottom:1px solid var(--line)}
.pdp-bulk thead th{background:color-mix(in srgb,var(--fg) 5%,transparent);font-size:12px;text-transform:uppercase;letter-spacing:.06em;color:var(--muted)}
.pdp-bulk tbody tr:last-child td{border-bottom:0}
.pdp-bulk tbody tr:nth-child(n+2) td:nth-child(2){color:var(--accent);font-weight:700}
.pdp-trust{list-style:none;padding:20px 0 0;margin:22px 0 0;border-top:1px solid var(--line);display:grid;grid-template-columns:1fr 1fr;gap:11px 20px}
.pdp-trust li{font-size:13.5px;color:var(--muted)}
.pdp-trust b{color:var(--fg);font-weight:800}
/* lower detail */
.pdp-detail{margin:52px 0 0}
.pdp-block{margin:0 0 40px;max-width:820px}
.pdp-block h2{font-size:23px;font-weight:800;margin:0 0 16px;letter-spacing:-.01em}
.spec-table{width:100%;border-collapse:collapse;font-size:14.5px}
.spec-table th,.spec-table td{text-align:left;padding:11px 14px;border-bottom:1px solid var(--line);vertical-align:top}
.spec-table th{width:210px;color:var(--muted);font-weight:600}
.spec-table td.mono,.mono{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:13px;word-break:break-word}
.pdp-fineprint{font-size:12.5px;color:var(--muted);margin:12px 0 0}
.pdp-fineprint a{color:var(--accent)}
.pdp-ruo{margin:16px 0 0;font-size:13.5px;color:var(--muted);border-left:3px solid color-mix(in srgb,var(--accent) 55%,transparent);padding:6px 0 6px 14px}
.pdp-block p{line-height:1.6;color:var(--muted)}
.pdp-block p+p{margin-top:12px}
.faq-list{border:1px solid var(--line);border-radius:14px;overflow:hidden}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:0}
.faq-item summary{cursor:pointer;padding:16px 18px;font-weight:700;font-size:15px;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:12px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";font-size:22px;color:var(--accent);font-weight:400;line-height:1}
.faq-item[open] summary::after{content:"–"}
.faq-a{padding:0 18px 18px}
.faq-a p{margin:0}
.pdp-rating{display:flex;align-items:center;gap:10px;margin:0 0 18px;font-size:15px}
.pdp-rating .stars{color:#ffb454;letter-spacing:2px}
.pdp-rating b{font-size:18px}
.verified{color:#37e0a6;font-weight:700}
.pdp-noreviews{color:var(--muted)}
.pdp-related{margin:56px 0 0}
.ci-save{color:#37e0a6;font-weight:700;font-size:11.5px}
.cart-savings{color:#37e0a6;font-weight:700;font-size:13px;padding:8px 0 0;text-align:center}
@media(max-width:820px){
  .pdp-top{grid-template-columns:1fr;gap:26px}
  .pdp-media{aspect-ratio:4/3}
  .spec-table th{width:130px}
  .pdp-trust{grid-template-columns:1fr}
}

/* ============ Calculator + Rewards pages (shared, theme-aware) ============ */
.calc-page,.rewards-page{padding:38px 0 60px}
.calc-grid{display:grid;grid-template-columns:1fr 1fr;gap:26px;margin:26px 0 0;align-items:start}
.calc-inputs{display:flex;flex-direction:column;gap:16px;background:var(--card);border:1px solid var(--line);border-radius:calc(var(--radius) + 2px);padding:22px}
.calc-field{display:flex;flex-direction:column;gap:7px;font-weight:700;font-size:14px}
.calc-field em{color:var(--muted);font-style:normal;font-weight:500}
.calc-field input,.calc-field select{background:color-mix(in srgb,var(--fg) 5%,transparent);border:1px solid var(--line);border-radius:10px;padding:12px 13px;color:var(--fg);font-size:15px;font-family:inherit}
.calc-field input:focus,.calc-field select:focus{outline:2px solid color-mix(in srgb,var(--accent) 55%,transparent);outline-offset:1px}
.calc-results{display:flex;flex-direction:column;gap:12px}
.calc-result{display:flex;flex-direction:column;gap:4px;background:var(--card);border:1px solid var(--line);border-radius:14px;padding:15px 18px}
.calc-result.big{background:color-mix(in srgb,var(--accent) 12%,var(--card));border-color:color-mix(in srgb,var(--accent) 40%,transparent)}
.calc-k{font-size:12.5px;color:var(--muted);font-weight:700;letter-spacing:.02em}
.calc-v{font-size:20px;font-weight:800}
.calc-result.big .calc-v{font-size:30px;color:var(--accent)}
.calc-warn{color:#ffb454;font-size:13px;font-weight:600;min-height:1em;margin:2px 0 0}
.calc-note{margin:26px 0 0;max-width:760px}
.calc-note p{color:var(--muted);line-height:1.6;font-size:14px}
.calc-note p+p{margin-top:12px}
.calc-link a{color:var(--accent)}
.rw-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin:26px 0 30px}
.rw-card{background:var(--card);border:1px solid var(--line);border-radius:calc(var(--radius) + 2px);padding:24px}
.rw-card h3{font-size:19px;font-weight:800;margin:12px 0 8px}
.rw-card p{color:var(--muted);line-height:1.55;font-size:14.5px}
.rw-sub{font-size:13.5px;margin:8px 0 0}
.rw-sub a{color:var(--accent)}
.rw-ic{width:44px;height:44px;border-radius:12px;display:grid;place-items:center;font-size:22px;font-weight:800;background:color-mix(in srgb,var(--accent) 16%,transparent);color:var(--accent)}
.rw-code{font-family:ui-monospace,Menlo,Consolas,monospace;background:color-mix(in srgb,var(--accent) 16%,transparent);color:var(--accent);padding:2px 9px;border-radius:7px;font-weight:700}
.rw-card .pdp-bulk{margin-top:14px}
@media(max-width:760px){.calc-grid,.rw-grid{grid-template-columns:1fr}}

/* ============ Phone / call links (header, hero, contact, footer) ============ */
.nav-phone{display:inline-flex;align-items:center;gap:7px;text-decoration:none;color:var(--fg);font-weight:700;font-size:14px;padding:8px 12px;border:1px solid var(--line);border-radius:10px;background:color-mix(in srgb,var(--accent) 8%,transparent)}
.nav-phone:hover{border-color:color-mix(in srgb,var(--accent) 55%,transparent);color:var(--accent)}
.nav-phone-ic{font-size:13px}
.hero-phone{margin:16px 0 0;font-size:15px;color:var(--muted)}
.hero-phone a{color:var(--accent);font-weight:800;text-decoration:none}
.contact-phone{margin:8px 0 0;font-size:15px;color:var(--muted)}
.contact-phone a{color:var(--accent);font-weight:700;text-decoration:none}
.foot-contact a{color:inherit;text-decoration:none}
@media(max-width:860px){.nav-phone .nav-phone-num{display:none}.nav-phone{padding:8px}}

/* ============ SMASH logo in header (Smash-branded sites) ============ */
.brand-logo{height:38px;width:auto;display:block;margin-right:2px;filter:drop-shadow(0 2px 6px rgba(0,0,0,.35))}
.brand{display:inline-flex;align-items:center;gap:10px}
@media(max-width:560px){.brand-logo{height:32px}}

/* ============================================================
   Motion polish — "clean lab production" feel. All effects are
   gated behind prefers-reduced-motion so they never bother users
   who opt out, and use transform/opacity only (GPU-cheap).
   ============================================================ */
@media (prefers-reduced-motion: no-preference){
  /* Slow cinematic drift on full-bleed hero photography */
  .hero-bg{animation:pn-kenburns 26s ease-in-out infinite alternate;will-change:transform}
  @keyframes pn-kenburns{
    0%{transform:scale(1.04) translate3d(0,0,0)}
    100%{transform:scale(1.12) translate3d(-1.5%,-1.2%,0)}
  }
  /* Framed vial / product photo: gentle breathing zoom */
  .hero-vial,.pdp-photo{animation:pn-breathe 18s ease-in-out infinite alternate;will-change:transform}
  @keyframes pn-breathe{0%{transform:scale(1)}100%{transform:scale(1.035)}}
  .pdp-media{overflow:hidden}
  /* Hero copy rises in on load */
  .hero-copy,.pdp-buy{animation:pn-risen .7s cubic-bezier(.2,.7,.2,1) both}
  .hero-copy .hero-cta{animation:pn-risen .7s .12s cubic-bezier(.2,.7,.2,1) both}
  .hero-trust,.hero-stats{animation:pn-risen .7s .2s cubic-bezier(.2,.7,.2,1) both}
  @keyframes pn-risen{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:translateY(0)}}
  /* Floating assay / COA card (biolabs + themes that use it) */
  .hero-card-float,.assay-card{animation:pn-float 6.5s ease-in-out infinite}
  @keyframes pn-float{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}
  /* Live "in stock" dot: soft pulse (signals a live, real store) */
  .pdp-stock.in .dot,.pcard-stock.in .dot{animation:pn-pulse 2.4s ease-in-out infinite}
  @keyframes pn-pulse{0%,100%{box-shadow:0 0 0 0 rgba(55,224,166,.5)}50%{box-shadow:0 0 0 5px rgba(55,224,166,0)}}
  /* Buttons lift slightly on hover for a premium feel */
  .btn-primary{transition:transform .15s ease, box-shadow .15s ease}
  .btn-primary:hover{transform:translateY(-1px)}
  /* Product cards lift on hover */
  .pcard{transition:transform .18s ease, box-shadow .18s ease}
  .pcard:hover{transform:translateY(-4px)}
}

/* ============ Animated molecular backdrop (Quality section) ============ */
.quality{position:relative;overflow:hidden}
.quality .wrap{position:relative;z-index:1}
.molecule-bg{position:absolute;inset:0;z-index:0;pointer-events:none;opacity:.16;
  -webkit-mask-image:radial-gradient(120% 100% at 80% 30%,#000 30%,transparent 78%);
  mask-image:radial-gradient(120% 100% at 80% 30%,#000 30%,transparent 78%)}
.molecule-bg svg{width:100%;height:100%;display:block}
@media (prefers-reduced-motion: no-preference){
  .mol-net line{stroke-dasharray:6 8;animation:mol-flow 9s linear infinite}
  @keyframes mol-flow{to{stroke-dashoffset:-140}}
  .mol-atoms circle{transform-box:fill-box;transform-origin:center;animation:mol-blink 4s ease-in-out infinite}
  .mol-atoms .a1{animation-delay:0s}.mol-atoms .a2{animation-delay:1.2s}.mol-atoms .a3{animation-delay:2.4s}
  @keyframes mol-blink{0%,100%{opacity:.55;transform:scale(1)}50%{opacity:1;transform:scale(1.25)}}
  .molecule-bg{animation:mol-drift 30s ease-in-out infinite alternate}
  @keyframes mol-drift{from{transform:translateX(0)}to{transform:translateX(-3%)}}
}

/* ============ Lab band — full-width dark photographic section ============
   Self-contained dark band with the cinematic lab image; sits well on both
   light and dark themes. Text is fixed light for legibility over the photo. */
.lab-band{position:relative;min-height:340px;display:flex;align-items:center;overflow:hidden;padding:0}
.lab-band-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center 60%;z-index:0}
.lab-band-scrim{position:absolute;inset:0;z-index:1;background:
  linear-gradient(90deg,rgba(4,7,14,.94) 0%,rgba(4,7,14,.82) 40%,rgba(4,7,14,.5) 72%,rgba(4,7,14,.28) 100%),
  linear-gradient(0deg,rgba(4,7,14,.6),transparent 60%)}
.lab-band-inner{position:relative;z-index:2;padding:56px 0}
.lab-band .eyebrow{color:var(--accent)}
.lab-band h2{color:#f4f8ff;font-size:clamp(26px,3.4vw,40px);margin:6px 0 12px;max-width:16ch}
.lab-band p{color:#c7d2e6;font-size:16px;line-height:1.6;max-width:56ch}
@media(max-width:640px){.lab-band-scrim{background:linear-gradient(0deg,rgba(4,7,14,.92) 20%,rgba(4,7,14,.66) 100%)}}