/* North Biology — shared.css */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;overflow-x:hidden}
body{font-family:'Inter',-apple-system,BlinkMacSystemFont,sans-serif;font-size:15px;color:#111;background:#fff;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit;text-decoration:none}img{display:block;max-width:100%}button{cursor:pointer;font-family:inherit}

/* ── NAV ── */
.nav{position:sticky;top:0;z-index:300;background:rgba(255,255,255,.97);border-bottom:1px solid #e8e8e8;padding:0 48px;box-shadow:0 1px 4px rgba(0,0,0,.04);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px)}
.nav-top{display:flex;align-items:center;width:100%;gap:32px;height:72px}
.nav-links{display:flex;gap:4px;list-style:none}
.nav-links a{font-size:14px;font-weight:500;color:#444;transition:all .15s;padding:8px 14px;border-radius:8px;white-space:nowrap}
.nav-links a:hover{color:#5411AB;background:#f5f0ff}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:12px;flex-shrink:0}
.nav-trust{display:flex;gap:14px;font-size:11.5px;font-weight:600;color:#555}
.nav-trust span{display:flex;align-items:center;gap:5px;white-space:nowrap}
.cart-btn{background:#5411AB;color:#fff;border:none;padding:9px 18px;border-radius:8px;font-size:13px;font-weight:600;transition:background .15s;display:flex;align-items:center;gap:6px;white-space:nowrap;flex-shrink:0}
.cart-btn:hover{background:#3d0c80}
.cart-btn svg{width:16px;height:16px}
.nbp-account-btn{display:flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:50%;background:#f5f0ff;color:#5411AB;text-decoration:none;transition:.15s;flex-shrink:0}
.nbp-account-btn:hover{background:#5411AB;color:#fff}
.nbp-account-btn svg{width:18px;height:18px}

/* ── NAV LOGO ── */
.nav-logo{flex-shrink:0;display:flex;align-items:center}
.logo-svg-dark text .name{fill:#111}
.logo-svg-dark text .bio{fill:#5411AB}

/* ── HERO BANNER (inner pages) ── */
.page-hero{position:relative;overflow:hidden;background:#16141c;border-bottom:none}
.page-hero .hero-bg-gradient{position:absolute;inset:0;background:linear-gradient(135deg,#16141c 0%,#1a0a2e 40%,#2d1154 70%,#5411AB 100%);opacity:.5}
.page-hero::after{content:"";position:absolute;inset:0;background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='600' height='300' viewBox='0 0 600 300' fill='none'%3E%3Ccircle cx='500' cy='80' r='40' stroke='%23a78bfa' stroke-width='1' opacity='.15'/%3E%3Ccircle cx='520' cy='60' r='20' stroke='%23a78bfa' stroke-width='1' opacity='.1'/%3E%3Cline x1='510' y1='75' x2='515' y2='65' stroke='%23a78bfa' stroke-width='1' opacity='.12'/%3E%3Ccircle cx='80' cy='220' r='25' stroke='%237c3aed' stroke-width='1' opacity='.12'/%3E%3Ccircle cx='100' cy='200' r='15' stroke='%237c3aed' stroke-width='1' opacity='.08'/%3E%3Cline x1='90' y1='215' x2='95' y2='205' stroke='%237c3aed' stroke-width='1' opacity='.1'/%3E%3Ccircle cx='420' cy='250' r='4' fill='%23a78bfa' opacity='.2'/%3E%3Ccircle cx='150' cy='50' r='3' fill='%23a78bfa' opacity='.15'/%3E%3Ccircle cx='550' cy='200' r='3' fill='%237c3aed' opacity='.12'/%3E%3Ccircle cx='300' cy='280' r='2' fill='%23a78bfa' opacity='.1'/%3E%3C/svg%3E") no-repeat right center;background-size:cover;pointer-events:none}
.page-hero .hero-content{position:relative;z-index:2;padding:56px 24px 48px;max-width:1160px;margin:0 auto}
.hero-eyebrow{font-size:11px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:#a78bfa;margin-bottom:10px}
.page-hero h1{font-size:clamp(2rem,4vw,3rem);font-weight:800;letter-spacing:-.03em;line-height:1.1;margin-bottom:12px;color:#fff}
.page-hero .subtitle{font-size:16px;color:rgba(255,255,255,.6);max-width:560px;line-height:1.65}

/* ── FOOTER ── */
.footer-nl{background:
linear-gradient(180deg,rgba(84,17,171,.18),rgba(84,17,171,0) 45%),
linear-gradient(135deg,#121018 0%,#171320 52%,#1f1630 100%);
padding:52px 24px 34px;border-top:1px solid rgba(255,255,255,.06)}
.footer-nl-inner{max-width:760px;margin:0 auto;text-align:center}
.footer-nl-kicker{display:inline-flex;align-items:center;gap:8px;padding:6px 12px;border-radius:999px;border:1px solid rgba(167,139,250,.25);background:rgba(167,139,250,.08);color:#c4b5fd;font-size:11px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;margin-bottom:14px}
.footer-nl h2{color:#fff;font-size:clamp(1.5rem,2.4vw,2rem);font-weight:800;letter-spacing:-.02em;margin-bottom:10px}
.footer-nl p{color:rgba(255,255,255,.62);font-size:14px;line-height:1.7;margin:0 auto 18px;max-width:620px}
.nl-form{display:flex;gap:4px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:10px;padding:4px 4px 4px 14px;max-width:520px;margin:0 auto}
.nl-form input{flex:1;background:none;border:none;color:#fff;font-size:14px;font-family:inherit;outline:none}
.nl-form input::placeholder{color:rgba(255,255,255,.3)}
.nl-form button{background:#fff;color:#111;border:none;padding:10px 18px;border-radius:8px;font-weight:700;font-size:13px;font-family:inherit;white-space:nowrap}
.nl-note{font-size:11px;color:rgba(255,255,255,.34);margin-top:9px}
footer{background:#121018;border-top:1px solid rgba(255,255,255,.06);padding:46px 24px 28px}
.footer-grid{display:grid;grid-template-columns:minmax(0,2.3fr) repeat(4,minmax(0,1fr));gap:28px;max-width:1160px;margin:0 auto 36px}
.footer-brand{padding-right:24px}
.footer-brand-mark{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.footer-brand-badge{display:inline-flex;align-items:center;gap:6px;padding:6px 10px;border-radius:999px;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.08);font-size:10.5px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:rgba(255,255,255,.62)}
.footer-brand-desc{font-size:13px;color:rgba(255,255,255,.46);line-height:1.72;max-width:320px;margin-top:0}
.footer-brand-metrics{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;margin-top:18px;max-width:380px}
.footer-brand-metric{padding:12px 12px 10px;border:1px solid rgba(255,255,255,.08);border-radius:12px;background:rgba(255,255,255,.03)}
.footer-brand-metric strong{display:block;font-size:16px;font-weight:800;color:#fff;letter-spacing:-.02em}
.footer-brand-metric span{display:block;font-size:11px;color:rgba(255,255,255,.42);margin-top:3px}
.footer-col h4{font-size:10.5px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:rgba(255,255,255,.32);margin-bottom:12px}
.footer-col ul{list-style:none;display:flex;flex-direction:column;gap:8px}
.footer-col a{font-size:13px;color:rgba(255,255,255,.56);transition:color .15s}
.footer-col a:hover{color:#fff}
.footer-bottom{max-width:1160px;margin:0 auto;padding-top:20px;border-top:1px solid rgba(255,255,255,.07);display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px}
.footer-bottom p{font-size:12px;color:rgba(255,255,255,.28)}
.footer-trust-row{display:flex;gap:10px;flex-wrap:wrap}
.footer-trust-pill{display:inline-flex;align-items:center;gap:8px;padding:8px 12px;border-radius:999px;background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.07);font-size:11.5px;color:rgba(255,255,255,.46)}
.footer-trust-pill svg{width:14px;height:14px;color:#a78bfa;flex-shrink:0}

/* ── SHARED SECTION STYLES ── */
.section{padding:56px 24px}
.section.gray{background:#f9f9f9;border-top:1px solid #ebebeb;border-bottom:1px solid #ebebeb}
.inner{max-width:1160px;margin:0 auto}
.eyebrow{font-size:11px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:#5411AB;margin-bottom:6px;display:block}
.sec-title{font-size:clamp(1.5rem,2.5vw,2rem);font-weight:800;letter-spacing:-.025em;margin-bottom:8px}
.sec-sub{font-size:14px;color:#555;line-height:1.7;max-width:600px}

/* ── PRODUCT GRID CARD ── */
.pgrid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.pcard{background:#fff;border:1px solid #e8e8e8;border-radius:14px;overflow:hidden;display:flex;flex-direction:column;transition:transform .2s,box-shadow .2s;text-decoration:none;color:inherit}
.pcard:hover{transform:translateY(-3px);box-shadow:0 8px 24px rgba(84,17,171,.12);border-color:#d4b8f0}
.pcard-img{background:#f7f7f7;aspect-ratio:1;display:flex;align-items:center;justify-content:center;overflow:hidden}
.pcard-img img{width:100%;height:100%;object-fit:contain}
.pcard-body{padding:10px 12px 12px}
.pcard-cat{display:inline-block;font-size:10.5px;font-weight:600;letter-spacing:.04em;padding:3px 8px;border-radius:4px;border:1px solid;margin-bottom:6px}
.pcard-name{font-size:17px;font-weight:700;margin-bottom:3px}
.pcard-sub{font-size:14px;color:#777;line-height:1.4}
.pcard-foot{display:flex;justify-content:space-between;align-items:center;margin-top:10px}
.pcard-price{font-size:18px;font-weight:800}
.pcard-rating{font-size:12px;color:#888;display:flex;align-items:center;gap:3px}
.pcard-stars{color:#f59e0b}
.pcard-actions{display:flex;gap:8px;margin-top:12px}
.pcard-btn-sec{display:inline-flex;align-items:center;justify-content:center;border-radius:8px;padding:8px 12px;font-size:12px;font-weight:600;background:#fff;border:1px solid #ddd;color:#444;transition:border-color .15s}
.pcard-btn-sec:hover{border-color:#5411AB;color:#5411AB}
.pcard-btn-pri{display:inline-flex;align-items:center;justify-content:center;border-radius:8px;padding:8px 16px;font-size:13px;font-weight:600;background:#5411AB;color:#fff;border:none;transition:background .15s}
.pcard-btn-pri:hover{background:#3d0c80}

/* ── FAQ ── */
.faq-list{border:1px solid #e8e8e8;border-radius:14px;overflow:hidden}
.faq-item{border-bottom:1px solid #e8e8e8;background:#fff}
.faq-item:last-child{border-bottom:none}
.faq-q{width:100%;background:none;border:none;color:#111;padding:16px 20px;text-align:left;font-size:14px;font-weight:500;display:flex;justify-content:space-between;align-items:center;gap:16px;cursor:pointer;transition:background .15s}
.faq-q:hover{background:#faf8ff}
.faq-arr{color:#bbb;font-size:12px;transition:transform .25s;flex-shrink:0}
.faq-item.open .faq-arr{transform:rotate(180deg);color:#555}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease,padding .3s ease;font-size:13.5px;color:#444;line-height:1.75;background:#fafafa}
.faq-item.open .faq-a{max-height:600px;padding:0 20px 16px}

/* ── BUTTONS ── */
.btn-dark{background:#5411AB;color:#fff;border:none;padding:11px 24px;border-radius:8px;font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:6px;transition:background .15s}
.btn-dark:hover{background:#3d0c80}
.btn-outline{background:#fff;color:#111;border:1.5px solid #ccc;padding:11px 24px;border-radius:8px;font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:6px;transition:all .15s}
.btn-outline:hover{border-color:#5411AB;color:#5411AB}

/* ── INSIGHT / INFO BOX ── */
.insight{background:#f9f9f9;border:1px solid #e8e8e8;border-radius:8px;padding:11px 14px;font-size:12.5px;color:#555;line-height:1.6}

/* ── RESPONSIVE ── */
@media(max-width:1024px){.pgrid{grid-template-columns:repeat(3,1fr)}.footer-grid{grid-template-columns:repeat(3,1fr)}.footer-brand{grid-column:1/-1;padding-right:0}.footer-brand-metrics{max-width:none}}
@media(max-width:768px){.nav-links,.nav-trust,.nav-search-wrap{display:none}.pgrid{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:420px){.pgrid{grid-template-columns:1fr}}

/* ── DATA-ROW OVERRIDES (higher specificity to override product-hero inline styles) ── */
.data-rows{display:table!important;width:100%!important;border-spacing:0!important;table-layout:fixed!important}
.data-row{display:table-row!important}
.data-key{display:table-cell!important;width:40%!important;color:#555;padding:10px 16px 10px 0!important;font-size:13.5px;vertical-align:baseline!important;border-bottom:1px solid #e8e8e8}
.data-val{display:table-cell!important;width:60%!important;font-weight:700;color:#059669;padding:10px 0!important;font-size:13.5px;vertical-align:baseline!important;border-bottom:1px solid #e8e8e8}
.data-row:last-child .data-key,.data-row:last-child .data-val{border-bottom:none}
.dark-card .data-key{color:rgba(255,255,255,.6)!important;border-color:rgba(255,255,255,.08)!important}
.dark-card .data-val{color:#4ade80!important;border-color:rgba(255,255,255,.08)!important}
.dark-card .data-val.down{color:#f87171!important}
.dark-card .data-val.neutral{color:rgba(255,255,255,.7)!important}

/* ── HAMBURGER MENU ── */
.nav-hamburger{display:none;background:none;border:none;cursor:pointer;padding:8px;flex-direction:column;gap:5px}
.nav-hamburger span{display:block;width:22px;height:2px;background:#111;border-radius:2px;transition:all .2s}
.nav-mobile-menu{display:none}
.nav-mobile-close{display:none}

@media(max-width:768px){
  .nav-hamburger{display:flex}
  .nav-mobile-menu{display:none;position:fixed;top:0;left:0;right:0;bottom:0;background:#fff;z-index:9999;padding:24px;flex-direction:column;gap:0;overflow-y:auto}
  .nav-mobile-menu.open{display:flex}
  .nav-mobile-menu a{display:flex;align-items:center;padding:16px 0;font-size:17px;font-weight:600;color:#111;text-decoration:none;border-bottom:1px solid #f0f0f0;transition:color .15s}
  .nav-mobile-menu a:last-of-type{border-bottom:none}
  .nav-mobile-menu a:active{color:#5411AB}
  .nav-mobile-close{position:absolute;top:20px;right:20px;background:none;border:none;cursor:pointer;color:#555;padding:8px;border-radius:50%;transition:background .15s}
  .nav{padding:0 16px}
  .nbp-cart-text{display:none}
  .nav-mobile-close{min-width:44px;min-height:44px;display:flex;align-items:center;justify-content:center}
  .pcard-btn-sec,.pcard-btn-pri{padding:12px 16px;font-size:13px;min-height:44px}
}
@media(max-width:520px){.footer-grid{grid-template-columns:1fr}.footer-brand-metrics{grid-template-columns:1fr}.footer-trust-row{width:100%}.footer-trust-pill{width:100%;justify-content:center}}
@media(max-width:420px){.nl-form{flex-direction:column}.nl-form button{width:100%}}
@media(max-width:375px){
  .nav-top{gap:8px}
  .cart-btn{padding:9px 12px;font-size:12px}
}