/* ===================================================================
   COGNINECTAR — bright clean teal / green cognitive-wellness design
   teal #0ea5b7 | teal-dk #0b7d8a | teal2 #14b8c4 | cyan #22c9dd
   navy #103e4a | green #16a34a | green2 #22b573 | amber #f5a623
   mint #e7f7f9 | tint #eefafb | cream #f6fcfd
   ink #10323d | slate #55707a | line #d6e8ec
   Display: 'Plus Jakarta Sans' | Body: 'Inter'
   Prefix: cn-  (core site only, no blog)
   6 disclosed ingredients. Cognitive structure/function only.
=================================================================== */
:root{
  --teal:#0ea5b7;--teal-dk:#0b7d8a;--teal2:#14b8c4;--cyan:#22c9dd;
  --navy:#103e4a;--green:#16a34a;--green2:#22b573;--amber:#f5a623;
  --mint:#e7f7f9;--tint:#eefafb;--cream:#f6fcfd;
  --ink:#10323d;--slate:#55707a;--line:#d6e8ec;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{font-family:'Inter',sans-serif;color:#37474f;background:var(--cream);margin:0;font-size:17px;line-height:1.7;-webkit-font-smoothing:antialiased;}
h1,h2,h3,h4,.cn-display{font-family:'Plus Jakarta Sans',sans-serif;font-weight:700;line-height:1.16;color:var(--navy);letter-spacing:-.01em;}
.cn-eyebrow{font-family:'Plus Jakarta Sans',sans-serif;text-transform:uppercase;letter-spacing:2.5px;font-weight:700;font-size:.74rem;color:var(--teal);}
a{color:inherit;text-decoration:none;}
img{max-width:100%;height:auto;display:block;}
.container{max-width:1180px;margin:0 auto;padding:0 24px;}
.cn-gradtext{background:linear-gradient(100deg,var(--teal),var(--green2));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;color:transparent;}

/* reveal */
.cn-reveal{opacity:0;transform:translateY(22px);transition:opacity .6s ease,transform .6s ease;}
.cn-reveal.in-view{opacity:1;transform:none;}
.cn-reveal.d1{transition-delay:.08s;}.cn-reveal.d2{transition-delay:.16s;}.cn-reveal.d3{transition-delay:.24s;}
@media(prefers-reduced-motion:reduce){.cn-reveal{opacity:1;transform:none;transition:none;}}

/* buttons */
.btn-cn{display:inline-flex;align-items:center;gap:10px;background:linear-gradient(100deg,var(--teal),var(--green2));color:#fff;font-family:'Plus Jakarta Sans',sans-serif;font-weight:700;font-size:1.02rem;padding:15px 34px;border-radius:12px;border:none;cursor:pointer;transition:transform .15s ease,box-shadow .15s ease,filter .15s ease;box-shadow:0 12px 28px rgba(14,165,183,.3);}
.btn-cn:hover{transform:translateY(-2px);filter:brightness(1.05);color:#fff;box-shadow:0 16px 36px rgba(14,165,183,.42);}
.btn-cn-ghost{display:inline-flex;align-items:center;gap:10px;background:#fff;border:2px solid var(--line);color:var(--navy);font-family:'Plus Jakarta Sans',sans-serif;font-weight:600;font-size:.98rem;padding:12px 26px;border-radius:12px;transition:all .15s ease;}
.btn-cn-ghost:hover{border-color:var(--teal);color:var(--teal);}

/* top strip */
.cn-strip{background:linear-gradient(90deg,var(--teal-dk),var(--teal2));color:#eafeff;font-family:'Inter',sans-serif;font-weight:600;font-size:.82rem;letter-spacing:.3px;text-align:center;padding:9px 16px;}
.cn-strip span{opacity:.7;margin:0 8px;}

/* nav */
.cn-nav{position:sticky;top:0;z-index:1000;background:rgba(255,255,255,.94);backdrop-filter:blur(10px);padding:14px 0;border-bottom:1px solid var(--line);}
.cn-nav .container{display:flex;align-items:center;justify-content:space-between;}
.cn-logo{font-family:'Plus Jakarta Sans',sans-serif;font-weight:800;color:var(--navy);font-size:1.5rem;letter-spacing:-.01em;display:flex;align-items:center;gap:9px;}
.cn-logo span{color:var(--teal);}
.cn-logo .brain{width:27px;height:27px;flex-shrink:0;}
.cn-nav-links{display:flex;gap:26px;list-style:none;margin:0;padding:0;align-items:center;}
.cn-nav-links a{color:var(--navy);font-family:'Plus Jakarta Sans',sans-serif;font-weight:500;font-size:.94rem;opacity:.85;}
.cn-nav-links a:hover{opacity:1;color:var(--teal);}
.cn-nav-toggle{display:none;background:none;border:none;color:var(--navy);font-size:1.8rem;cursor:pointer;}
@media(max-width:900px){
  .cn-nav-links{position:absolute;top:100%;left:0;right:0;background:#fff;flex-direction:column;gap:0;border-top:1px solid var(--line);display:none;}
  .cn-nav-links.open{display:flex;}
  .cn-nav-links li{width:100%;border-bottom:1px solid var(--line);}
  .cn-nav-links a{display:block;padding:16px 24px;}
  .cn-nav-cta{display:none;}
  .cn-nav-toggle{display:block;}
}

/* hero */
.cn-hero{position:relative;overflow:hidden;padding:60px 0 48px;background:radial-gradient(900px 520px at 74% 10%,rgba(34,201,221,.16),transparent 60%),linear-gradient(180deg,var(--mint),var(--cream));}
.cn-hero-row{position:relative;z-index:2;display:flex;align-items:center;gap:44px;flex-wrap:wrap;}
.cn-hero-copy{flex:1 1 480px;min-width:0;}
.cn-hero-top,.cn-hero-bottom{width:100%;}
.cn-hero-copy h1{font-size:2.95rem;margin:15px 0 20px;color:var(--navy);}
.cn-hero-copy p{color:var(--slate);font-size:1.1rem;max-width:530px;}
.cn-hero-img{flex:1 1 330px;min-width:0;position:relative;text-align:center;}
.cn-hero-img::before{content:"";position:absolute;top:50%;left:50%;width:96%;height:96%;transform:translate(-50%,-50%);background:radial-gradient(circle,rgba(255,255,255,.85),transparent 64%);z-index:0;}
.cn-hero-img img{position:relative;z-index:1;max-width:min(340px,100%);margin:0 auto;filter:drop-shadow(0 24px 40px rgba(16,62,74,.2));}
.cn-hero-btns{display:flex;gap:14px;flex-wrap:wrap;margin-top:26px;}
.cn-hero-trust{display:flex;align-items:center;gap:14px;margin-top:24px;flex-wrap:wrap;}
.cn-hero-trust .stars{color:var(--amber);letter-spacing:2px;font-size:1.12rem;}
.cn-hero-trust span{color:var(--slate);font-weight:600;font-size:.9rem;}
.cn-hero-chips{display:flex;gap:10px;flex-wrap:wrap;margin-top:22px;}
.cn-chip{background:#fff;border:1px solid var(--line);border-radius:50px;padding:7px 15px;font-size:.8rem;font-weight:600;color:var(--navy);display:flex;align-items:center;gap:7px;box-shadow:0 3px 10px rgba(16,62,74,.05);}
.cn-chip .c{color:var(--green);}
@media(max-width:900px){
  .cn-hero-copy{display:contents;}
  .cn-hero-img{order:1;margin-bottom:8px;}
  .cn-hero-top{order:2;}
  .cn-hero-bottom{order:3;}
  .cn-hero-copy h1{font-size:2.25rem;}
}

/* trust bar */
.cn-trustbar{background:#fff;border-bottom:1px solid var(--line);padding:24px 0;}
.cn-trustbar .row{display:flex;flex-wrap:wrap;justify-content:center;align-items:center;gap:20px 36px;}
.cn-trustbar img{height:58px;width:auto;}
.cn-trustbar .fdachip{background:var(--tint);border:1px solid var(--line);border-radius:12px;padding:12px 18px;font-family:'Plus Jakarta Sans',sans-serif;font-weight:600;font-size:.9rem;color:var(--teal-dk);display:flex;align-items:center;gap:8px;}
@media(max-width:600px){.cn-trustbar img{height:46px;}}

/* sections */
.cn-section{padding:80px 0;}
.cn-section-tint{background:var(--tint);}
.cn-section-mint{background:linear-gradient(180deg,var(--mint),var(--tint));}
.cn-section-navy{background:linear-gradient(135deg,var(--navy),#0a2b34);color:#c4dde2;}
.cn-section-navy h2,.cn-section-navy h3,.cn-section-navy h4{color:#fff;}
.cn-section-navy .cn-eyebrow{color:var(--cyan);}
.cn-head{text-align:center;max-width:780px;margin:0 auto 50px;}
.cn-head h2{font-size:2.4rem;margin-top:10px;}
.cn-head p{color:var(--slate);margin-top:12px;}
.cn-section-navy .cn-head p{color:#9fc0c7;}

/* stat band */
.cn-statband{background:linear-gradient(135deg,var(--teal),var(--teal-dk));color:#fff;padding:30px 0;}
.cn-statband .row{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;text-align:center;}
@media(max-width:700px){.cn-statband .row{grid-template-columns:repeat(2,1fr);gap:26px;}}
.cn-stat b{display:block;font-family:'Plus Jakarta Sans',sans-serif;font-weight:800;font-size:1.9rem;color:#fff;line-height:1;}
.cn-stat span{color:#cdeef2;font-size:.85rem;}

/* grids + cards */
.cn-grid3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
@media(max-width:900px){.cn-grid3{grid-template-columns:1fr;}}
.cn-card{background:#fff;border-radius:18px;padding:28px 24px;box-shadow:0 10px 28px rgba(16,62,74,.06);border:1px solid var(--line);transition:transform .2s ease;}
.cn-card:hover{transform:translateY(-5px);}
.cn-card-ico{width:54px;height:54px;border-radius:14px;background:var(--tint);color:var(--teal);display:flex;align-items:center;justify-content:center;font-size:1.5rem;margin-bottom:14px;}
.cn-card h4{font-size:1.1rem;margin:0 0 8px;}
.cn-card p{margin:0;color:var(--slate);font-size:.92rem;}

/* row */
.cn-row{display:flex;align-items:center;gap:54px;flex-wrap:wrap;}
.cn-row-img{flex:1 1 320px;min-width:0;text-align:center;position:relative;}
.cn-row-img img{position:relative;max-width:min(380px,100%);margin:0 auto;filter:drop-shadow(0 18px 32px rgba(16,62,74,.16));}
.cn-row-copy{flex:1 1 430px;min-width:0;}
.cn-row-copy h2{font-size:2.1rem;margin-bottom:16px;}
.cn-row-copy p{color:var(--slate);}
.cn-check-list{list-style:none;padding:0;margin:18px 0 0;}
.cn-check-list li{position:relative;padding-left:34px;margin-bottom:12px;color:#37474f;}
.cn-check-list li::before{content:"\2713";position:absolute;left:0;top:1px;width:22px;height:22px;border-radius:50%;background:var(--green);color:#fff;font-size:.76rem;font-weight:700;display:flex;align-items:center;justify-content:center;}

/* steps */
.cn-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;}
@media(max-width:900px){.cn-steps{grid-template-columns:repeat(2,1fr);}}
@media(max-width:520px){.cn-steps{grid-template-columns:1fr;}}
.cn-step{background:#fff;border-radius:18px;padding:26px 22px;text-align:center;box-shadow:0 10px 26px rgba(16,62,74,.06);border:1px solid var(--line);}
.cn-step-num{width:52px;height:52px;border-radius:50%;background:linear-gradient(135deg,var(--teal),var(--cyan));color:#fff;font-family:'Plus Jakarta Sans',sans-serif;font-weight:700;font-size:1.3rem;display:flex;align-items:center;justify-content:center;margin:0 auto 16px;box-shadow:0 8px 18px rgba(14,165,183,.35);}
.cn-step h4{font-size:1.05rem;margin:0 0 8px;}
.cn-step p{margin:0;color:var(--slate);font-size:.9rem;}

/* ingredient cards */
.cn-ing-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
@media(max-width:900px){.cn-ing-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media(max-width:600px){.cn-ing-grid{grid-template-columns:1fr;}}
.cn-ing-card{background:#fff;border-radius:18px;padding:24px 22px;box-shadow:0 10px 26px rgba(16,62,74,.06);border:1px solid var(--line);border-top:4px solid var(--teal);transition:transform .2s ease;}
.cn-ing-card:hover{transform:translateY(-5px);}
.cn-ing-tag{display:inline-block;background:var(--tint);color:var(--teal-dk);font-family:'Plus Jakarta Sans',sans-serif;font-size:.68rem;font-weight:700;text-transform:uppercase;letter-spacing:.5px;padding:4px 10px;border-radius:20px;margin-bottom:10px;}
.cn-ing-card h4{font-size:1.08rem;margin:0 0 6px;}
.cn-ing-card p{margin:0;color:var(--slate);font-size:.88rem;}

/* safety */
.cn-safety{background:#fff;border:2px solid var(--teal);border-radius:18px;padding:26px 28px;max-width:920px;margin:34px auto 0;box-shadow:0 10px 26px rgba(14,165,183,.1);}
.cn-safety h3{margin:0 0 10px;font-family:'Plus Jakarta Sans',sans-serif;color:var(--navy);font-size:1.18rem;}
.cn-safety p{margin:0;color:var(--slate);font-size:.94rem;}

/* testimonials */
.cn-testi-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
@media(max-width:900px){.cn-testi-grid{grid-template-columns:1fr;}}
.cn-testi-card{background:#fff;border-radius:18px;padding:28px 26px;box-shadow:0 10px 26px rgba(16,62,74,.06);border:1px solid var(--line);}
.cn-testi-top{display:flex;align-items:center;gap:14px;margin-bottom:12px;}
.cn-avatar{width:52px;height:52px;border-radius:50%;background:linear-gradient(135deg,var(--teal),var(--green2));color:#fff;font-family:'Plus Jakarta Sans',sans-serif;font-weight:700;font-size:1.15rem;display:flex;align-items:center;justify-content:center;flex-shrink:0;}
.cn-testi-name{font-family:'Plus Jakarta Sans',sans-serif;font-weight:700;color:var(--navy);}
.cn-testi-loc{color:var(--slate);font-size:.85rem;}
.cn-stars{color:var(--amber);letter-spacing:2px;margin-bottom:8px;}
.cn-testi-card blockquote{margin:0 0 8px;font-family:'Plus Jakarta Sans',sans-serif;font-weight:600;font-size:1rem;color:var(--navy);}
.cn-testi-card p{color:var(--slate);font-size:.92rem;margin:0;}
.cn-rating-strip{text-align:center;margin-top:44px;}
.cn-rating-badge{display:inline-flex;align-items:center;gap:14px;background:#fff;border:1px solid var(--line);border-radius:50px;padding:14px 32px;box-shadow:0 10px 24px rgba(16,62,74,.07);}
.cn-rating-badge .big{font-family:'Plus Jakarta Sans',sans-serif;font-weight:800;font-size:1.9rem;color:var(--teal);line-height:1;}
.cn-rating-badge .st{color:var(--amber);letter-spacing:2px;font-size:1.05rem;}
.cn-rating-badge small{color:var(--slate);font-weight:600;}

/* pricing */
.cn-pricing-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:26px;align-items:stretch;}
@media(max-width:900px){.cn-pricing-grid{grid-template-columns:1fr;max-width:420px;margin:0 auto;}}
.cn-price-card{background:#fff;border-radius:22px;padding:30px 26px;text-align:center;position:relative;display:flex;flex-direction:column;border:2px solid var(--line);box-shadow:0 12px 30px rgba(16,62,74,.07);transition:transform .2s ease;}
.cn-price-card:hover{transform:translateY(-6px);}
.cn-price-card.featured{border-color:var(--teal);box-shadow:0 22px 46px rgba(14,165,183,.2);transform:scale(1.03);}
@media(max-width:900px){.cn-price-card.featured{transform:none;}}
.cn-ribbon{position:absolute;top:-14px;left:50%;transform:translateX(-50%);background:linear-gradient(100deg,var(--teal),var(--green2));color:#fff;font-family:'Plus Jakarta Sans',sans-serif;font-weight:700;font-size:.72rem;letter-spacing:.5px;text-transform:uppercase;padding:6px 18px;border-radius:20px;white-space:nowrap;}
.cn-ribbon.pop{background:var(--amber);color:#3a2600;}
.cn-price-card img.bottle{max-width:min(185px,100%);margin:6px auto 14px;}
.cn-pack-title{font-family:'Plus Jakarta Sans',sans-serif;font-weight:700;font-size:1.4rem;color:var(--navy);}
.cn-pack-sub{color:var(--slate);font-size:.9rem;margin-bottom:14px;}
.cn-perbottle{font-family:'Plus Jakarta Sans',sans-serif;font-weight:800;font-size:2.6rem;color:var(--teal);line-height:1;}
.cn-perbottle span{font-family:'Inter',sans-serif;font-size:.9rem;font-weight:400;color:var(--slate);}
.cn-total{font-weight:600;margin:10px 0 2px;color:var(--navy);}
.cn-total s{color:var(--slate);font-weight:400;}
.cn-ship{font-size:.86rem;font-weight:700;margin-bottom:14px;color:var(--green);}
.cn-ship.paid{color:var(--slate);}
.cn-price-card .btn-cn{width:100%;justify-content:center;margin-top:auto;}
.cn-warning{max-width:760px;margin:36px auto 0;background:#fff;border:2px dashed var(--amber);border-radius:16px;padding:18px 24px;text-align:center;color:var(--navy);font-family:'Plus Jakarta Sans',sans-serif;font-weight:500;font-size:1rem;}

/* guarantee */
.cn-guarantee{display:flex;align-items:center;gap:44px;flex-wrap:wrap;background:#fff;border-radius:24px;padding:44px;border:1px solid var(--line);box-shadow:0 14px 34px rgba(16,62,74,.08);}
.cn-guarantee img{max-width:min(200px,100%);margin:0 auto;}
.cn-guarantee-copy{flex:1 1 360px;min-width:0;}
.cn-guarantee-copy h3{font-size:1.9rem;margin-bottom:14px;}
.cn-guarantee-copy p{color:var(--slate);}

/* final cta */
.cn-final-cta{position:relative;overflow:hidden;text-align:center;border-radius:26px;padding:56px 30px;background:linear-gradient(135deg,var(--teal),var(--teal-dk));color:#fff;box-shadow:0 24px 50px rgba(11,125,138,.28);}
.cn-final-cta h2{color:#fff;font-size:2.4rem;}
.cn-final-cta img{max-width:min(230px,100%);margin:22px auto;filter:drop-shadow(0 16px 30px rgba(0,0,0,.28));}
.cn-final-cta .price-line{font-family:'Plus Jakarta Sans',sans-serif;font-weight:800;font-size:2rem;margin:8px 0 22px;color:#fff;}
.cn-final-cta .btn-cn{background:#fff;color:var(--teal-dk);}
.cn-final-cta .btn-cn:hover{color:var(--teal-dk);}

/* faq */
.cn-faq-item{background:#fff;border:1px solid var(--line);border-radius:14px;margin-bottom:14px;overflow:hidden;box-shadow:0 6px 18px rgba(16,62,74,.04);}
.cn-faq-q{width:100%;text-align:left;background:none;border:none;padding:20px 22px;display:flex;justify-content:space-between;align-items:center;cursor:pointer;font-family:'Plus Jakarta Sans',sans-serif;font-weight:600;font-size:1.05rem;color:var(--navy);gap:16px;}
.cn-faq-q::after{content:'+';font-size:1.5rem;color:var(--teal);transition:transform .2s;flex-shrink:0;}
.cn-faq-item.open .cn-faq-q::after{transform:rotate(45deg);}
.cn-faq-a{max-height:0;overflow:hidden;transition:max-height .25s ease;}
.cn-faq-a p{padding:0 22px 20px;margin:0;color:var(--slate);}

/* research */
.cn-research{max-width:820px;margin:0 auto;text-align:center;}
.cn-research a{display:inline-block;margin:6px;padding:8px 18px;border:1px solid var(--line);border-radius:50px;background:#fff;color:var(--navy);font-weight:600;font-size:.86rem;}
.cn-research a:hover{border-color:var(--teal);color:var(--teal);}

/* footer */
.cn-footer{background:var(--navy);color:#8fb0b8;padding:46px 0 30px;font-size:.9rem;}
.cn-footer a{color:#c4dde2;}
.cn-footer a:hover{color:var(--cyan);}
.cn-footer hr{border-color:rgba(255,255,255,.1);margin:26px 0;}
.cn-footer-links{margin-bottom:6px;line-height:2;}

/* sticky */
.cn-sticky-bar{position:fixed;left:0;right:0;bottom:0;z-index:1030;background:var(--navy);padding:10px 16px;display:none;align-items:center;justify-content:space-between;gap:12px;box-shadow:0 -6px 20px rgba(0,0,0,.28);border-top:3px solid var(--teal);}
.cn-sticky-bar .price{color:#fff;line-height:1.2;}
.cn-sticky-bar .price b{color:var(--cyan);font-size:1.1rem;font-family:'Plus Jakarta Sans',sans-serif;}
.cn-sticky-bar .price small{display:block;color:#9fc0c7;font-size:.72rem;}
@media(max-width:900px){.cn-sticky-bar{display:flex;}body{padding-bottom:72px;}}

/* legal */
.cn-legal{max-width:820px;}
.cn-legal h1{font-size:2.4rem;margin:10px 0 24px;}
.cn-legal h4{font-family:'Plus Jakarta Sans',sans-serif;color:var(--navy);margin-top:24px;}
.cn-legal p,.cn-legal li{color:#3f5057;}
.cn-legal a{color:var(--teal-dk);font-weight:700;}