:root{
  --bg:#02050a;--panel:#07111d;--panel2:#0a1624;--text:#f4f8ff;--muted:#9fb4cb;
  --blue:#00bfff;--blue2:#1777ff;--line:#0e5f93;--gold:#ffc93d;--ok:#4ee6ff;--err:#ff7a7a;
  --serif:Georgia,"Times New Roman",serif;--sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,Helvetica,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;scroll-padding-top:64px}
body{margin:0;background:var(--bg);color:var(--text);font-family:var(--sans);line-height:1.55;overflow-x:hidden}
img{max-width:100%;height:auto}
a{color:inherit}
.skip{position:absolute;left:-999px;top:0;background:#000;padding:10px;z-index:99}.skip:focus{left:8px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}

/* NAV */
.nav{position:sticky;top:0;z-index:20;display:flex;align-items:center;gap:20px;padding:10px 5vw;padding-top:max(10px,env(safe-area-inset-top));background:rgba(2,5,10,.92);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid #123}
.nav .brand{font-weight:900;letter-spacing:.14em;text-decoration:none;line-height:1.1;font-size:.95rem}
.nav .brand span{display:block;font-size:.58rem;color:var(--muted);letter-spacing:.3em}
.nav nav{display:flex;gap:22px;margin-left:auto}.nav nav a{font-size:.88rem;color:#cfe8ff;text-decoration:none;padding:10px 0}
.nav .btn.small{margin-left:auto}.nav nav + .btn.small{margin-left:0}

/* BUTTONS */
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:52px;background:linear-gradient(90deg,var(--blue2),var(--blue));color:#fff;border:1px solid #49d8ff;padding:14px 22px;border-radius:10px;font-weight:800;font-size:1rem;letter-spacing:.03em;text-decoration:none;box-shadow:0 0 22px rgba(0,191,255,.28);cursor:pointer;font-family:inherit;text-transform:uppercase;-webkit-tap-highlight-color:transparent}
.btn:active{transform:translateY(1px)}
.btn:focus-visible,a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid #7fe4ff;outline-offset:2px}
.btn.ghost{background:rgba(2,8,16,.55)}
.btn.small{min-height:40px;padding:8px 14px;font-size:.78rem}
.btn[disabled]{opacity:.6;cursor:wait}
.full-w{width:100%}

/* HERO */
.hero{position:relative;min-height:min(86vh,780px);display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,.75fr);gap:4vw;align-items:center;padding:70px 6vw 70px;overflow:hidden;isolation:isolate}
.hero-bg,.hero-bg img{position:absolute;inset:0;width:100%;height:100%;z-index:-2}
.hero-bg img{object-fit:cover;object-position:50% 30%;filter:blur(2px) saturate(1.1);transform:scale(1.04)}
.hero-shade{position:absolute;inset:0;z-index:-1;background:
  radial-gradient(ellipse at 75% 45%,rgba(0,149,255,.22),transparent 50%),
  linear-gradient(90deg,rgba(2,5,10,.92) 0%,rgba(2,5,10,.7) 45%,rgba(2,5,10,.35) 100%),
  linear-gradient(180deg,transparent 70%,var(--bg) 100%)}
.hero-copy{max-width:820px}
.hero-tub img{display:block;width:100%;max-width:420px;margin-left:auto;border-radius:18px;box-shadow:0 0 60px rgba(0,165,255,.4),0 0 0 1px rgba(73,216,255,.35)}
.mobile-only{display:none}
.eyebrow{color:#2fd6ff;letter-spacing:.2em;font-weight:900;font-size:.8rem;margin:0 0 .6em;text-transform:uppercase}
.hero h1{font-family:var(--serif);font-size:clamp(3.6rem,13vw,9rem);line-height:.86;margin:.05em 0 .2em;letter-spacing:.02em;text-shadow:0 0 24px #169cff,0 2px 0 #000}
.h1-brand{display:block;font-size:.26em;letter-spacing:.42em;color:#cfe8ff;text-shadow:0 0 12px #0a7bd6;margin-bottom:.35em}
.hero-claim{font-weight:900;font-size:clamp(1.25rem,3.4vw,2.3rem);line-height:1.15;margin:.15em 0;letter-spacing:.02em}
.hero-claim.blue{color:#39d9ff;text-shadow:0 0 14px rgba(0,191,255,.45)}
.hero-sub{font-size:clamp(1rem,2.2vw,1.18rem);max-width:680px;color:#d9ebff;margin:1em 0 0}
.cta-row{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px}

/* STATS */
.stats{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid #126091;border-bottom:1px solid #126091;background:linear-gradient(180deg,#061524,#040c15)}
.stats div{padding:24px 10px;text-align:center;border-right:1px solid #123d5c}.stats div:last-child{border-right:0}
.stats strong{display:block;font-size:clamp(1.6rem,4.5vw,2.4rem);font-family:var(--serif);line-height:1.1;text-shadow:0 0 14px rgba(0,191,255,.35)}
.stats span{color:#49d9ff;font-size:.74rem;font-weight:800;letter-spacing:.08em}

/* SECTIONS */
.section{padding:80px 6vw}.section.alt{background:linear-gradient(180deg,#06111d,#030912)}
.section-head{text-align:center;max-width:950px;margin:0 auto 34px}
.section-head.left{text-align:left;margin:0 0 26px}
.section-head.sub{margin-top:56px}
.section-head h2{font-size:clamp(2rem,6vw,3.8rem);line-height:1.05;margin:.1em 0 .3em;font-family:var(--serif);letter-spacing:.01em}
.h3big{font-size:clamp(1.5rem,4.5vw,2.4rem);font-family:var(--serif);margin:.1em 0 .3em;line-height:1.1}
.lead{font-size:clamp(1rem,2.3vw,1.15rem);color:#dcefff}.muted{color:var(--muted)}
.center{text-align:center}.fine{font-size:.78rem;color:#8ea4ba;max-width:900px;margin:20px auto 0}
.notice{background:rgba(255,201,61,.07);border:1px solid rgba(255,201,61,.45);color:#ffe6a6;border-radius:10px;padding:12px 16px;font-size:.92rem;text-align:left;max-width:760px;margin:16px auto 0}

/* WHY */
.why-grid{display:grid;grid-template-columns:1fr;gap:40px;align-items:center;max-width:1100px;margin:auto}
.why .cards{grid-template-columns:repeat(3,1fr)}
.cards{display:grid;gap:14px}
.card{background:linear-gradient(180deg,#091a2b,#06101a);border:1px solid var(--line);padding:22px 24px;border-radius:14px;position:relative;overflow:hidden}
.card::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:linear-gradient(var(--blue),var(--blue2))}
.card h3{color:#39d9ff;margin:0 0 .35em;letter-spacing:.06em;font-size:1.1rem}.card p{margin:0;color:#d6e7f8}
.tub img{display:block;width:100%;max-width:420px;margin:auto;border-radius:16px;box-shadow:0 0 50px rgba(0,165,255,.3)}

/* FORMULA */
.formula-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;max-width:1250px;margin:auto}
.formula-group{background:#040b12;border:1px solid #12649b;border-radius:14px;padding:18px 20px}
.formula-group h3{color:#35d4ff;margin:.2em 0 .5em;letter-spacing:.05em}
.formula-group ul{list-style:none;padding:0;margin:0}
.formula-group li{display:flex;justify-content:space-between;gap:14px;padding:10px 0;border-bottom:1px solid #102637}
.formula-group li:last-child{border-bottom:0}
.formula-group li span{color:#dcecff}.formula-group li b{white-space:nowrap;text-align:right}

/* QUICK COMPARE */
.quick{max-width:980px;margin:0 auto;border:1px solid #145d8d;border-radius:14px;overflow:hidden;background:#040b13}
.quick-head,.q-row{display:grid;grid-template-columns:minmax(0,2.2fr) repeat(3,minmax(0,.8fr)) minmax(0,1fr);align-items:center;gap:6px;padding:12px 14px}
.quick-head{font-size:.72rem;font-weight:800;letter-spacing:.08em;color:#7fcff5;text-transform:uppercase;background:#071726;border-bottom:1px solid #145d8d}
.quick-head span:not(:first-child),.q-row span:not(:first-child){text-align:center}
.q-row{border-bottom:1px solid #0f2a40;font-variant-numeric:tabular-nums}
.q-row:last-child{border-bottom:0}
.q-name{font-weight:800;font-size:.95rem;line-height:1.2}
.q-row .q-ov{font-weight:900;font-size:1.15rem;color:#fff}
.q-row.titan{background:linear-gradient(90deg,rgba(255,201,61,.12),rgba(0,140,255,.12));box-shadow:inset 0 0 0 2px rgba(255,201,61,.7)}
.q-row.titan .q-name{color:#ffd76a}
.q-bar{display:block;height:4px;border-radius:2px;background:#0d2b44;margin-top:6px;overflow:hidden}
.q-bar i{display:block;height:100%;background:linear-gradient(90deg,var(--blue2),var(--blue))}

/* FULL COMPARE */
.tabs{display:flex;gap:8px;justify-content:center;flex-wrap:wrap;margin:0 auto 16px}
.tabs button{min-height:46px;padding:10px 16px;border-radius:999px;border:1px solid #1e6fa3;background:#04101b;color:#cfe8ff;font-weight:800;font-size:.9rem;cursor:pointer;font-family:inherit}
.tabs button[aria-selected="true"]{background:linear-gradient(90deg,var(--blue2),var(--blue));color:#fff;border-color:#49d8ff}
.full{display:grid;gap:12px;max-width:1180px;margin:0 auto}
.f-card{background:#050d16;border:1px solid #134d74;border-radius:14px;padding:16px}
.f-card.titan{border:2px solid rgba(255,201,61,.8);background:linear-gradient(180deg,#0b1a2a,#050d16)}
.f-top{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:10px}
.f-top h4{margin:0;font-size:1.15rem;letter-spacing:.03em}.f-card.titan h4{color:#ffd76a}
.f-ov{flex:none;min-width:64px;text-align:center;border:1px solid #49d8ff;border-radius:10px;padding:4px 10px;font-weight:900;font-size:1.35rem;box-shadow:0 0 14px rgba(0,191,255,.3)}
.f-ov small{display:block;font-size:.6rem;color:var(--muted);font-weight:700;letter-spacing:.1em}
.f-cols{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.f-col{background:#03080e;border:1px solid #0f2c44;border-radius:10px;padding:10px 12px}
.f-col h5{margin:0 0 4px;font-size:.7rem;letter-spacing:.1em;color:#7fcff5;text-transform:uppercase;display:flex;justify-content:space-between;gap:8px}
.f-col h5 b{color:#fff;font-size:.95rem}
.f-col p{margin:0;font-size:.88rem;color:#d4e5f5}
.f-bl{margin:10px 0 0;font-size:.88rem;color:#a9c0d6;font-style:italic}

/* IMAGES */
.image-card{max-width:1180px;margin:22px auto;background:#02050a;border:1px solid #145d8d;border-radius:14px;padding:8px}
.image-card img{display:block;width:100%;height:auto;border-radius:8px}
.image-card figcaption{font-size:.75rem;color:var(--muted);text-align:center;padding:6px 0 2px}
.science-image{max-width:760px}
.chart-pair{display:grid;grid-template-columns:1fr 1fr;gap:16px;max-width:1180px;margin:auto}
.chart-pair .image-card{margin:0}
.proof{max-width:1180px;margin:24px auto 0;border:1px solid #134d74;border-radius:12px;padding:0 14px;background:#040b13}
.proof summary{cursor:pointer;color:#49d9ff;font-weight:800;padding:16px 0;min-height:48px;list-style-position:inside}
.proof[open]{padding-bottom:14px}

/* SCIENCE */
.outcomes{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;max-width:900px;margin:0 auto 10px}
.outcomes span{border:1px solid #1b6ea3;background:#04101b;color:#cfe8ff;border-radius:999px;padding:7px 13px;font-size:.82rem;font-weight:700}
.evidence-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;max-width:1250px;margin:32px auto}
.evidence{background:linear-gradient(180deg,#081624,#050d16);border:1px solid #125f91;border-radius:14px;padding:18px;display:flex;flex-direction:column}
.evidence h3{margin:0;color:#fff;font-size:1.2rem}
.evidence p{margin:.4em 0;color:#d2e3f3;font-size:.92rem}
.ev-tag{font-size:.66rem!important;letter-spacing:.14em;color:#5fd3ff!important;font-weight:900;margin:0 0 4px!important}
.ev-stat{color:#39d9ff!important;font-weight:900;font-size:1.02rem!important}
.ev-titan{margin-top:auto!important;padding-top:8px;border-top:1px solid #10324d;color:#ffd76a!important;font-weight:700;font-size:.85rem!important}
.pmid{display:inline-block;margin-top:8px;color:#46d8ff;font-weight:800;font-size:.82rem;padding:6px 0;text-decoration:underline;text-underline-offset:3px}
.takeaway{max-width:1000px;margin:36px auto 0;padding:28px;border-left:4px solid #19cfff;background:linear-gradient(90deg,#08182a,#050d16);border-radius:0 14px 14px 0;box-shadow:0 0 40px rgba(0,140,255,.12)}
.takeaway h3{font-size:clamp(1.6rem,4.5vw,2.2rem);margin:0 0 10px;font-family:var(--serif)}
.takeaway p{font-size:clamp(1rem,2.3vw,1.18rem);margin:0;color:#e3f1ff}

/* REVIEW FORM */
.review-section{background:radial-gradient(circle at 50% 0%,rgba(0,126,255,.18),transparent 40%),#03070c}
.review-form{max-width:860px;margin:auto;background:#07111d;border:1px solid #12649b;padding:24px;border-radius:16px}
label{display:block;font-weight:700;font-size:.95rem}label > span{font-weight:400;color:var(--muted)}
input,textarea{width:100%;margin-top:6px;background:#02070c;color:#fff;border:1px solid #2a5878;border-radius:10px;padding:13px 14px;font-size:16px;font-family:inherit;-webkit-appearance:none;appearance:none}
textarea{resize:vertical;min-height:120px}
input::placeholder,textarea::placeholder{color:#5f7a92}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-bottom:14px}
.ratings{display:grid;grid-template-columns:1fr 1fr;gap:12px 22px;margin:22px 0}
.rating{border:0;padding:0;margin:0;min-width:0}
.rating legend{font-weight:700;font-size:.95rem;margin-bottom:6px;padding:0;display:flex;justify-content:space-between;width:100%}
.rating legend em{font-style:normal;color:var(--muted);font-weight:400;font-size:.82rem}
.r-opts{display:grid;grid-template-columns:repeat(5,1fr);gap:6px}
.r-opts label{margin:0;position:relative}
.r-opts input{position:absolute;opacity:0;width:1px;height:1px;pointer-events:none}
.r-opts span{display:flex;align-items:center;justify-content:center;min-height:48px;border:1px solid #2a5878;border-radius:10px;background:#02070c;font-weight:900;font-size:1.05rem;color:#cfe8ff;cursor:pointer;-webkit-tap-highlight-color:transparent;transition:background .12s}
.r-opts input:checked + span{background:linear-gradient(180deg,var(--blue),var(--blue2));border-color:#7fe4ff;color:#fff;box-shadow:0 0 14px rgba(0,191,255,.45)}
.r-opts input:focus-visible + span{outline:3px solid #7fe4ff;outline-offset:2px}
.seg{border:0;padding:0;margin:20px 0}
.seg legend{font-weight:700;margin-bottom:6px;padding:0}
.seg{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.seg legend{grid-column:1/-1}
.seg label{margin:0;position:relative}
.seg input{position:absolute;opacity:0;width:1px;height:1px;pointer-events:none}
.seg span{display:flex;align-items:center;justify-content:center;min-height:50px;border:1px solid #2a5878;border-radius:10px;background:#02070c;font-weight:800;cursor:pointer;color:#cfe8ff}
.seg input:checked + span{background:linear-gradient(180deg,var(--blue),var(--blue2));border-color:#7fe4ff;color:#fff}
.seg input:focus-visible + span{outline:3px solid #7fe4ff;outline-offset:2px}
.check{display:flex;gap:12px;align-items:flex-start;margin:14px 0;font-weight:500;cursor:pointer}
.check input{width:24px;height:24px;flex:none;margin:1px 0 0;-webkit-appearance:auto;appearance:auto;accent-color:#19b8ff}
.check span{color:#dcecff!important}
.invalid{border-color:var(--err)!important;box-shadow:0 0 0 1px var(--err)}
.status{min-height:1.4em;margin:12px 0 0;font-weight:700;font-size:.95rem}
.status.ok{color:var(--ok)}.status.err{color:var(--err)}.status.wait{color:#cfe8ff}

/* PUBLIC REVIEWS */
.public-reviews{max-width:1100px;margin:0 auto}
.review-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:14px}
.rv{background:#06111c;border:1px solid #134d74;border-radius:14px;padding:18px}
.rv .stars{color:#39d9ff;letter-spacing:.1em;font-size:1.05rem}
.rv p{margin:.5em 0;color:#dbeaf8}.rv .who{color:var(--muted);font-size:.85rem;margin:0}

/* LAUNCH / COMMERCE SLOT */
.launch{background:linear-gradient(90deg,#061525,#02070d);border-top:1px solid #123d5c}
.commerce-slot{display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:center;max-width:1100px;margin:auto}
.commerce-slot h2{font-family:var(--serif);font-size:clamp(2rem,6vw,3.4rem);margin:.1em 0 .3em;line-height:1.05}
.launch-form{display:grid;gap:10px}.launch-form input{margin:0}
.price{margin-top:18px;color:#cde8ff;font-weight:800;letter-spacing:.12em;font-size:.85rem}.price strong{font-size:2rem;color:#fff;margin-left:10px;letter-spacing:0;font-family:var(--serif)}

footer{padding:34px 6vw calc(34px + env(safe-area-inset-bottom));border-top:1px solid #123d5c;color:#a8bacd;display:grid;gap:7px;text-align:center}
footer a{color:#7fdcff}.brand-foot{font-weight:900;letter-spacing:.18em;color:#fff}
footer p{font-size:.74rem;max-width:900px;margin:10px auto 0}

@media (max-width:980px){
  .evidence-grid{grid-template-columns:1fr 1fr}
  .why .cards{grid-template-columns:1fr}
  .formula-grid{grid-template-columns:1fr 1fr}
  .f-cols{grid-template-columns:1fr}
}
@media (max-width:760px){
  .nav nav{display:none}.nav .btn.small{margin-left:auto!important}
  .hero{display:block;min-height:auto;padding:52vw 5vw 44px}
  .hero-bg{height:68vw;bottom:auto}
  .hero-bg img{object-position:50% 0%;filter:none;transform:none}
  .hero-shade{background:linear-gradient(180deg,rgba(2,5,10,0) 0%,rgba(2,5,10,.1) 30vw,rgba(2,5,10,.95) 66vw,var(--bg) 100%)}
  .hero-tub{display:none}
  .mobile-only{display:block}.tub{order:-1}.tub img{max-width:280px}
  .cta-row{flex-direction:column}.cta-row .btn{width:100%}
  .stats{grid-template-columns:1fr 1fr}.stats div:nth-child(2){border-right:0}.stats div:nth-child(-n+2){border-bottom:1px solid #123d5c}
  .section{padding:56px 5vw}
  .formula-grid,.evidence-grid,.two-col,.chart-pair,.commerce-slot{grid-template-columns:1fr}
  .ratings{grid-template-columns:1fr}
  .review-form{padding:18px 16px}
  .quick-head,.q-row{grid-template-columns:minmax(0,1.6fr) repeat(3,minmax(0,.7fr)) minmax(0,.9fr);padding:11px 10px;gap:4px}
  .q-name{font-size:.84rem}.q-row span{font-size:.88rem}.quick-head{font-size:.62rem;letter-spacing:.04em}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}