:root{
  --cream:#F6F3EE; --surface:#fff; --surface-alt:#EFEAE1;
  --primary:#16584A; --primary-d:#0F3E34; --ink:#1C2B27; --ink2:#5B6B66;
  --amber:#E8A23D; --hair:#E6E0D7; --good:#2FB67A; --bad:#E5544B; --cyan:#19E3FF;
  --serif:'Fraunces',Georgia,'Times New Roman',serif;
  --sans:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  --wrap:1120px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--sans);color:var(--ink);background:var(--cream);line-height:1.5;-webkit-font-smoothing:antialiased}
h1,h2,h3,h4{font-family:var(--serif);font-weight:600;line-height:1.08;letter-spacing:-.01em}
a{color:inherit;text-decoration:none}
section{padding:88px 24px}
.reveal{opacity:0;transform:translateY(18px);transition:opacity .7s ease,transform .7s ease}
.reveal.is-visible{opacity:1;transform:none}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.4em;background:var(--primary);color:#fff;
  font-family:var(--sans);font-weight:600;font-size:15px;padding:12px 20px;border-radius:999px;border:0;cursor:pointer;
  transition:transform .15s ease,background .15s ease}
.btn:hover{transform:translateY(-2px);background:var(--primary-d)}
.btn-lg{font-size:17px;padding:15px 28px}
.btn-sm{padding:9px 16px;font-size:14px}
.btn-ghost{background:transparent;color:var(--primary);border:1.5px solid var(--primary)}
.btn-ghost:hover{background:rgba(22,88,74,.06);color:var(--primary)}

/* nav */
.nav{position:sticky;top:0;z-index:50;display:flex;align-items:center;justify-content:space-between;
  padding:14px 24px;background:rgba(246,243,238,.82);backdrop-filter:blur(12px);border-bottom:1px solid var(--hair)}
.wordmark{font-family:var(--serif);font-weight:700;font-size:24px;color:var(--primary);letter-spacing:-.02em}
.nav nav{display:flex;align-items:center;gap:24px}
.nav nav a{font-weight:500;color:var(--ink2);font-size:15px}
.nav nav a:hover{color:var(--ink)}
.nav nav a.btn{color:#fff}

/* hero */
.hero{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center;max-width:var(--wrap);margin:0 auto;padding-top:64px}
.eyebrow{font-size:13px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--primary);margin-bottom:18px}
.hero h1{font-size:clamp(38px,6vw,68px);margin-bottom:20px}
.hero h1 .hl{color:var(--primary);position:relative;white-space:nowrap}
.hero h1 .hl:after{content:"";position:absolute;left:0;right:0;bottom:.06em;height:.18em;background:var(--amber);opacity:.5;border-radius:3px;z-index:-1}
.sub{font-size:19px;color:var(--ink2);max-width:30em;margin-bottom:28px}
.cta-row{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:18px}
.trust{font-size:14px;color:var(--ink2)}

/* phone */
.hero-art{display:flex;justify-content:center}
.phone{width:300px;height:600px;background:#0d1714;border-radius:46px;padding:14px;box-shadow:0 40px 80px -30px rgba(15,62,52,.55);border:1px solid #1f3a32}
.phone-screen{width:100%;height:100%;background:linear-gradient(160deg,#11201b,#0d1714);border-radius:34px;overflow:hidden;
  display:flex;flex-direction:column;align-items:center;padding:26px 20px;gap:18px}
.scan-stage{position:relative;width:160px;height:210px;background:#0a1411;border-radius:20px;overflow:hidden;display:flex;align-items:center;justify-content:center;border:1px solid #1d332c}
.silhouette{font-size:120px;filter:grayscale(1) brightness(.5);opacity:.5}
.scanline{position:absolute;left:0;right:0;height:42px;background:linear-gradient(180deg,transparent,rgba(25,227,255,.85),#fff,rgba(25,227,255,.85),transparent);
  filter:blur(1px);animation:sweep 1.8s linear infinite}
@keyframes sweep{0%{top:-42px}100%{top:210px}}
.node{position:absolute;width:10px;height:10px;border-radius:50%;background:var(--cyan);box-shadow:0 0 10px var(--cyan);animation:pulse 1.4s ease-in-out infinite}
.node.n1{top:34px;left:84px}.node.n2{top:78px;left:70px}.node.n3{top:128px;left:80px}.node.n4{top:172px;left:86px}
@keyframes pulse{0%,100%{transform:scale(1);opacity:.7}50%{transform:scale(1.35);opacity:1}}
.ring-wrap{position:relative;width:150px;height:150px}
.ring{width:150px;height:150px;transform:rotate(-90deg)}
.ring-bg{fill:none;stroke:rgba(255,255,255,.14);stroke-width:9}
.ring-fg{fill:none;stroke:var(--cyan);stroke-width:9;stroke-linecap:round;stroke-dasharray:327;stroke-dashoffset:124;transition:stroke-dashoffset 1.4s ease}
.ring-num{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;color:#fff}
.ring-num b{font-family:var(--serif);font-size:46px;font-weight:700}
.ring-num span{font-size:12px;color:rgba(255,255,255,.6)}
.potential{display:flex;align-items:center;gap:8px;color:#cfe;font-size:13px;background:rgba(255,255,255,.06);padding:8px 14px;border-radius:12px}
.potential b{color:#fff;font-family:var(--serif);font-size:18px}
.potential i{color:var(--good);font-style:normal;font-weight:700}
.metrics{display:flex;gap:8px;flex-wrap:wrap;justify-content:center}
.metrics span{font-size:10px;color:rgba(255,255,255,.6);border:1px solid rgba(255,255,255,.15);border-radius:8px;padding:4px 7px}

/* ticker */
.ticker{background:var(--primary);color:#eaf3ef;text-align:center;font-weight:500;font-size:15px;padding:18px 24px;letter-spacing:.01em}

/* how */
.how{max-width:var(--wrap);margin:0 auto;text-align:center}
.how h2,.number h2,.science h2,.faq h2,.get h2{font-size:clamp(28px,4vw,42px);margin-bottom:44px}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;text-align:left}
.card{background:var(--surface);border:1px solid var(--hair);border-radius:20px;padding:28px}
.card-ic{font-size:34px;margin-bottom:14px}
.card h3{font-size:21px;margin-bottom:8px}
.card p{color:var(--ink2);font-size:15px}

/* number */
.number{max-width:var(--wrap);margin:0 auto;display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center}
.number h2{text-align:left;margin-bottom:18px}
.number p{color:var(--ink2);font-size:17px;margin-bottom:18px}
.checks{list-style:none;display:flex;flex-direction:column;gap:10px}
.checks li{padding-left:28px;position:relative;font-weight:500}
.checks li:before{content:"✓";position:absolute;left:0;color:var(--primary);font-weight:700}
.beforeafter{display:flex;align-items:center;justify-content:center;gap:14px}
.ba{background:var(--surface);border:1px solid var(--hair);border-radius:20px;padding:24px;text-align:center;width:140px}
.ba-tag{font-size:12px;color:var(--ink2);text-transform:uppercase;letter-spacing:.06em}
.ba-face{font-size:64px;margin:8px 0}
.ba b{font-family:var(--serif);font-size:38px}
.ba-before b{color:var(--bad)} .ba-after b{color:var(--good)}
.ba-arrow{font-size:28px;color:var(--ink2)}

/* science */
.science{max-width:var(--wrap);margin:0 auto;text-align:center}
.sci-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;text-align:left;margin-bottom:28px}
.sci{background:var(--surface);border:1px solid var(--hair);border-radius:18px;padding:22px}
.sci h4{font-family:var(--sans);font-weight:700;font-size:15px;margin-bottom:8px;color:var(--primary)}
.sci p{font-size:14px;color:var(--ink2)}
.disclaimer{font-size:12px;color:var(--ink2);max-width:46em;margin:0 auto;background:var(--surface-alt);padding:14px 18px;border-radius:12px}

/* faq */
.faq{max-width:760px;margin:0 auto;text-align:center}
.faq-list{text-align:left;display:flex;flex-direction:column;gap:10px}
.faq details{background:var(--surface);border:1px solid var(--hair);border-radius:14px;padding:4px 20px}
.faq summary{cursor:pointer;font-weight:600;padding:16px 0;list-style:none;font-size:17px;display:flex;justify-content:space-between;align-items:center}
.faq summary:after{content:"+";color:var(--primary);font-size:22px}
.faq details[open] summary:after{content:"–"}
.faq details p{color:var(--ink2);padding:0 0 18px;font-size:15px}

/* get */
.get{max-width:680px;margin:0 auto;text-align:center;background:var(--primary);color:#fff;border-radius:28px;padding:56px 32px}
.get h2{color:#fff} .get p{color:#d7e6e0;margin-bottom:24px;font-size:17px}
.waitlist{display:flex;gap:10px;max-width:440px;margin:0 auto;flex-wrap:wrap;justify-content:center}
.waitlist input{flex:1;min-width:220px;border:0;border-radius:999px;padding:15px 20px;font-size:16px;font-family:var(--sans)}
.get .btn{background:var(--amber);color:#3a2806}
.get .btn:hover{background:#f0b257}
.formnote{font-size:14px;color:#bfe;margin-top:14px;min-height:1.2em}
.comingsoon{margin-top:18px;font-size:14px;color:#cfe2db}

/* footer */
.footer{text-align:center;padding:56px 24px 64px;border-top:1px solid var(--hair)}
.foot-brand{font-family:var(--serif);font-weight:700;font-size:26px;color:var(--primary);margin-bottom:14px}
.foot-links{display:flex;gap:22px;justify-content:center;margin-bottom:16px}
.foot-links a{color:var(--ink2);font-size:15px}
.foot-links a:hover{color:var(--ink)}
.foot-note{font-size:14px;color:var(--ink2);margin-bottom:6px}
.foot-fine{font-size:12px;color:var(--ink2);opacity:.8;max-width:40em;margin:0 auto}

/* responsive */
@media(max-width:880px){
  .hero,.number{grid-template-columns:1fr;gap:36px}
  .hero{padding-top:36px;text-align:center}
  .hero-copy .cta-row{justify-content:center}
  .number h2{text-align:center}
  .cards,.sci-grid{grid-template-columns:1fr 1fr}
  .nav nav a:not(.btn){display:none}
}
@media(max-width:560px){
  section{padding:64px 20px}
  .cards,.sci-grid{grid-template-columns:1fr}
  .hero h1 .hl{white-space:normal}
}

/* legal pages */
.legal{max-width:760px;margin:0 auto;padding:48px 24px 90px}
.legal .back{display:inline-block;margin-bottom:22px;color:var(--primary);font-weight:600}
.legal h1{font-size:clamp(30px,5vw,40px);margin-bottom:6px}
.legal .updated{color:var(--ink2);font-size:14px;margin-bottom:30px}
.legal h2{font-size:21px;margin:30px 0 10px}
.legal h3{font-size:16px;font-family:var(--sans);font-weight:700;margin:18px 0 6px}
.legal p,.legal li{color:var(--ink);font-size:15px;margin-bottom:10px}
.legal ul{padding-left:22px;margin-bottom:12px}
.legal a{color:var(--primary);text-decoration:underline}
.legal strong{font-weight:700}
.legal .note{background:var(--surface-alt);border-radius:12px;padding:16px 18px;font-size:14px;color:var(--ink2);margin:14px 0}