:root{
  --paper:#e8e8e8; --ink:#0a0a0a; --accent:#00ffcc; --pink:#ff0055; --purple:#7000ff;
  --f-head:'Syncopate','Verdana','DejaVu Sans',sans-serif;
  --f-body:'Inter',-apple-system,'Segoe UI','Helvetica Neue',Arial,sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html{scrollbar-width:thin;scrollbar-color:#555 #111}
html{background:linear-gradient(105deg,var(--paper) 0%,var(--paper) 50%,#000 50%,#000 100%) fixed;background-attachment:fixed}
body{background:none;font-family:var(--f-body);font-size:16px;line-height:1.6;color:var(--ink);overflow-x:clip}
::selection{background:var(--accent);color:#000}
a{color:inherit;text-decoration:none}
button{font:inherit;background:none;border:0;cursor:pointer;color:inherit}

/* ---------- blend polarity: white paints as ink on the light side ---------- */
.blend{mix-blend-mode:difference;color:#fff}

/* ---------- type ---------- */
.k-head{font-family:var(--f-head);font-weight:700;text-transform:uppercase;letter-spacing:.02em;line-height:1.06;font-size:clamp(1.9rem,5.6vw,4.4rem)}
.k-head .w{display:inline-block;white-space:nowrap;overflow:hidden;vertical-align:top;padding-bottom:.1em;margin-bottom:-.1em}
.k-head .c{display:inline-block;transform:translateY(125%);will-change:transform}
.k-sub{font-family:var(--f-head);font-weight:700;text-transform:uppercase;letter-spacing:.08em;font-size:clamp(.86rem,1.4vw,1.05rem)}
.kicker{font-family:var(--f-head);font-weight:400;text-transform:uppercase;letter-spacing:.42em;font-size:.72rem;opacity:.9}
.body-lg{font-size:clamp(1.02rem,1.5vw,1.22rem);font-weight:300;line-height:1.7;max-width:34em}
.muted{opacity:.8}
.skip-link{position:fixed;top:-100px;left:16px;z-index:100;background:#000;color:#fff;padding:12px 16px;border-radius:8px;font-size:.875rem;transition:top .2s ease}
.skip-link:focus{top:12px}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px}
.glass-l a:focus-visible,.glass-l button:focus-visible,.glass-l input:focus-visible{outline-color:#00795f}
p{max-width:62ch}

/* ---------- shell ---------- */
#view{position:relative;width:100%}
.page{display:none;min-height:100vh;padding:0 clamp(20px,4.5vw,64px)}
.page.on{display:block}
.wrap{max-width:1120px;margin:0 auto}
section.band{padding:clamp(56px,9vh,120px) 0}

/* ---------- nav ---------- */
#nav{position:fixed;inset:0 0 auto 0;height:64px;z-index:60;display:flex;align-items:center;justify-content:space-between;
  padding:0 calc(clamp(20px,4.5vw,64px) + 292px) 0 clamp(20px,4.5vw,64px);mix-blend-mode:difference;color:#fff}
#nav .brand{font-family:var(--f-head);font-weight:700;letter-spacing:.34em;font-size:1rem}
#nav .links{display:flex;gap:clamp(12px,2.4vw,30px);font-family:var(--f-head);font-size:.6rem;letter-spacing:.22em;text-transform:uppercase}
#nav .links a{opacity:.78;padding:8px 0;position:relative;transition:opacity .25s}
#nav .links a:hover,#nav .links a:focus-visible{opacity:1}
#nav .links a.cur{opacity:1}
#nav .links a.cur::after{content:"";position:absolute;left:0;right:0;bottom:2px;height:1px;background:#fff}
/* CTA lives outside the blended nav so the accent renders true (inside
   mix-blend-mode:difference, #00ffcc inverts to red over the light half) */
#nav-cta{position:fixed;top:0;right:0;height:64px;z-index:61;display:flex;align-items:center;gap:18px;padding:0 clamp(20px,4.5vw,64px);pointer-events:none}
#nav-cta .nav-app,#nav-cta .site-logo{pointer-events:auto}
.site-logo{display:flex;align-items:center;opacity:.75;transition:opacity .25s}
.site-logo:hover,.site-logo:focus-visible{opacity:1}
.site-logo img{height:18px;width:auto;display:block;filter:brightness(0) invert(1)}
.nav-app{font-family:var(--f-head);font-size:.6rem;font-weight:700;letter-spacing:.2em;text-transform:uppercase;
  background:var(--accent);color:#000;padding:12px 19px;border-radius:999px;display:inline-block;box-shadow:0 0 26px rgba(0,255,204,.32)}

/* ---------- reveal defaults ---------- */
[data-reveal]{will-change:transform}

/* ---------- glass polarity cards ---------- */
.glass-l{background:rgba(255,255,255,.72);border:1px solid rgba(0,0,0,.14);color:var(--ink);
  box-shadow:0 24px 70px rgba(0,0,0,.16),0 2px 8px rgba(0,0,0,.08);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-radius:20px}
.glass-d{background:rgba(0,0,0,.72);border:1px solid rgba(255,255,255,.16);color:#fff;
  box-shadow:0 24px 70px rgba(0,255,204,.07),0 2px 30px rgba(0,0,0,.55);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-radius:20px}
.card{padding:clamp(22px,3vw,34px);position:relative;overflow:hidden}

/* pointer border-tracking */
.track{position:relative}
.track::before{content:"";position:absolute;inset:0;border-radius:inherit;padding:1px;pointer-events:none;opacity:var(--gp,0);
  background:radial-gradient(190px circle at var(--mx,50%) var(--my,50%),var(--tc,rgba(0,255,204,.85)),transparent 65%);
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask-composite:exclude}
.glass-l.track{--tc:rgba(0,0,0,.65)}

/* invert cards (straddle the split) */
.invert{mix-blend-mode:difference;color:#fff;border:1px solid rgba(255,255,255,.4);border-radius:20px}

/* ---------- chips ---------- */
.chip{display:inline-block;font-family:var(--f-head);font-size:.6rem;letter-spacing:.22em;text-transform:uppercase;
  border:1px solid rgba(255,255,255,.55);border-radius:999px;padding:7px 13px;white-space:nowrap}
.glass-d .chip{border-color:rgba(255,255,255,.3)}
.glass-l .chip{border-color:rgba(0,0,0,.35)}

/* ---------- hero ---------- */
#hero{position:relative;min-height:100vh;display:flex;flex-direction:column;justify-content:center;padding-top:64px}
#hero-canvas{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;z-index:-1}
.hero-inner{position:relative}
.hero-cta-row{display:flex;flex-wrap:wrap;gap:16px;margin-top:38px;align-items:center}
.btn{display:inline-block;font-family:var(--f-head);font-size:.66rem;font-weight:700;letter-spacing:.2em;text-transform:uppercase;
  padding:18px 30px;border-radius:999px;position:relative}
.btn-solid{background:var(--accent);color:#000;box-shadow:0 0 34px rgba(0,255,204,.35)}
.btn-line{border:1px solid currentColor}
.mag,.mag .mag-in{display:inline-block;will-change:transform}
#eng-read{position:absolute;right:0;bottom:12vh;font-family:var(--f-head);font-size:.62rem;letter-spacing:.24em;text-transform:uppercase;
  border:1px solid rgba(255,255,255,.35);border-radius:999px;padding:10px 16px;mix-blend-mode:difference;color:#fff}

/* metrics band */
.metrics{display:grid;grid-template-columns:repeat(6,1fr);border-top:1px solid rgba(255,255,255,.45);border-bottom:1px solid rgba(255,255,255,.45)}
.metric{padding:26px 8px 22px;border-left:1px solid rgba(255,255,255,.25)}
.metric:first-child{border-left:0}
.metric b{display:block;font-family:var(--f-head);font-weight:700;font-size:clamp(.95rem,1.9vw,1.5rem);letter-spacing:.04em}
.metric span{display:block;font-family:var(--f-head);font-size:.6rem;letter-spacing:.2em;text-transform:uppercase;opacity:.78;margin-top:8px}

/* privacy trio */
.trio{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:44px}
.trio .card h3{font-family:var(--f-head);font-size:.8rem;letter-spacing:.14em;text-transform:uppercase;margin-bottom:14px}
.trio .card p{font-size:.95rem;line-height:1.65}

/* ---------- method ---------- */
.m-grid{display:grid;grid-template-columns:7fr 4fr;gap:clamp(24px,4vw,64px);align-items:start}
.m-note{margin-top:9vh}
.steps{margin-top:10vh;display:grid;gap:20px}
.step{display:grid;grid-template-columns:auto 1fr auto;gap:clamp(18px,3vw,44px);align-items:center;padding:clamp(20px,3vw,32px) clamp(20px,3vw,36px)}
.step .num{font-family:var(--f-head);font-weight:700;font-size:clamp(1.7rem,4vw,3rem);opacity:.9}
.step h3{font-family:var(--f-head);font-size:.82rem;letter-spacing:.16em;text-transform:uppercase;margin-bottom:8px}
.step p{font-size:.95rem;opacity:.9}
.step:nth-child(odd){margin-right:clamp(0px,6vw,90px)}
.step:nth-child(even){margin-left:clamp(0px,6vw,90px)}

/* ---------- features ledger ---------- */
.ledger{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:52px}
.ledger .full{grid-column:1/-1}
.mod h3{font-family:var(--f-head);font-size:.72rem;letter-spacing:.2em;text-transform:uppercase;margin-bottom:6px}
.mod .mod-sub{font-size:.86rem;opacity:.78;margin-bottom:22px}
.readout{font-family:var(--f-head);font-weight:700;font-size:1.5rem;letter-spacing:.04em}
.readout small{font-size:.64rem;letter-spacing:.24em;opacity:.78;margin-left:8px}
input[type=range]{-webkit-appearance:none;appearance:none;width:100%;height:34px;background:transparent;cursor:pointer;margin-top:10px}
input[type=range]::-webkit-slider-runnable-track{height:2px;background:currentColor;opacity:.9}
input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:22px;height:22px;border-radius:50%;background:var(--accent);
  margin-top:-10px;box-shadow:0 0 18px rgba(0,255,204,.8);border:2px solid #000}
input[type=range]::-moz-range-track{height:2px;background:currentColor}
input[type=range]::-moz-range-thumb{width:20px;height:20px;border-radius:50%;background:var(--accent);border:2px solid #000;box-shadow:0 0 18px rgba(0,255,204,.8)}
.lane{position:relative;height:180px;background:#000;border:1px solid rgba(255,255,255,.14);border-radius:14px;margin-top:22px;overflow:hidden}
.lane .mid{position:absolute;left:50%;top:0;bottom:0;width:1px;background:rgba(255,255,255,.12)}
#demo-dot{position:absolute;left:50%;top:50%;width:60px;height:60px;border-radius:50%;background:var(--accent);
  box-shadow:0 0 40px var(--accent),0 0 90px rgba(0,255,204,.5);will-change:transform}
.paths{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:20px}
.pathbox{border:1px solid rgba(0,0,0,.2);border-radius:14px;padding:14px;background:rgba(0,0,0,.86);color:#fff}
.pathbox svg{display:block;width:100%;height:auto}
.pathbox figcaption{font-family:var(--f-head);font-size:.6rem;letter-spacing:.22em;text-transform:uppercase;margin-top:10px;opacity:.88}
.chips{display:flex;gap:clamp(14px,2vw,26px);margin-top:26px;flex-wrap:wrap}
.chip-c{width:58px;height:58px;border-radius:50%;border:3px solid #000;position:relative}
.chip-wrap{text-align:center}
.chip-wrap code{display:block;font-size:.62rem;letter-spacing:.12em;opacity:.66;margin-top:10px}
.stack{display:grid;gap:12px;margin-top:24px}
.layer-row{display:grid;grid-template-columns:130px 1fr auto;gap:16px;align-items:center;font-size:.85rem}
.layer-row .bar{height:8px;border-radius:4px;background:linear-gradient(90deg,var(--accent),transparent);opacity:.85}
.layer-row b{font-family:var(--f-head);font-size:.62rem;letter-spacing:.18em;text-transform:uppercase}
.pan-meter{display:grid;grid-template-columns:1fr auto 1fr;gap:12px;align-items:center;margin-top:22px}
.pan-meter .pm{height:10px;border-radius:5px;background:rgba(255,255,255,.12);overflow:hidden;position:relative}
.pan-meter .pm i{position:absolute;top:0;bottom:0;background:var(--accent);box-shadow:0 0 14px var(--accent)}
#panL i{right:0}#panR i{left:0}
.pan-meter em{font-family:var(--f-head);font-style:normal;font-size:.56rem;letter-spacing:.24em}
.qlist{list-style:none;margin-top:20px;display:grid;gap:12px;font-size:.92rem}
.qlist li{padding-left:22px;position:relative}
.qlist li::before{content:"";position:absolute;left:0;top:.62em;width:10px;height:1px;background:currentColor}

/* ---------- pricing ---------- */
.price-grid{display:grid;grid-template-columns:1fr 1fr;gap:26px;margin-top:56px;align-items:stretch}
.price-card{display:flex;flex-direction:column;padding:clamp(26px,3.4vw,44px)}
.price-card .tier{font-family:var(--f-head);font-size:.64rem;letter-spacing:.26em;text-transform:uppercase;opacity:.78}
.price-card .amount{font-family:var(--f-head);font-weight:700;font-size:clamp(1.9rem,3.6vw,2.9rem);margin:16px 0 6px}
.price-card .under{font-size:.9rem;opacity:.8;margin-bottom:26px}
.tick{list-style:none;display:grid;gap:13px;font-size:.94rem;margin-bottom:34px}
.tick li{padding-left:26px;position:relative}
.tick li::before{content:"";position:absolute;left:0;top:.5em;width:12px;height:6px;border-left:2px solid var(--accent);border-bottom:2px solid var(--accent);transform:rotate(-45deg)}
.glass-l .tick li::before{border-color:#009977}
.price-card .btn{margin-top:auto;text-align:center}
.price-note{text-align:center;margin:40px auto 0;font-size:.9rem;mix-blend-mode:difference;color:#fff;opacity:.95;max-width:44em}

/* ---------- faq ---------- */
.faq{max-width:780px;margin:56px auto 0;display:grid;gap:14px}
.qa{mix-blend-mode:difference;color:#fff;border:1px solid rgba(255,255,255,.4);border-radius:16px;overflow:hidden}
.qa-q{width:100%;display:flex;justify-content:space-between;align-items:center;gap:20px;text-align:left;
  padding:20px 24px;font-family:var(--f-head);font-size:.74rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;line-height:1.5}
.qa-i{position:relative;flex:0 0 16px;height:16px;will-change:transform}
.qa-i::before,.qa-i::after{content:"";position:absolute;background:#fff;left:0;top:7px;width:16px;height:2px}
.qa-i::after{transform:rotate(90deg)}
.qa-b{height:0;overflow:hidden}
.qa-in{padding:2px 24px 24px;font-size:.95rem;line-height:1.7;opacity:.95}
.qa-in p{max-width:58ch}

/* ---------- app ---------- */
.page[data-route="app"]{padding:0;min-height:100vh}
#app-shell{position:fixed;inset:64px 0 0 0}
#app-frame{width:100%;height:100%;border:0;background:#000}
body.app-mode{overflow:hidden}

/* ---------- footer ---------- */
footer{mix-blend-mode:difference;color:#fff;padding:60px 0 44px;display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.3);font-family:var(--f-head);font-size:.62rem;letter-spacing:.2em;text-transform:uppercase}
footer a{opacity:.82}footer a:hover,footer a:focus-visible{opacity:1}

/* ---------- responsive ---------- */
@media (max-width:900px){
  .m-grid,.ledger,.price-grid{grid-template-columns:1fr}
  .trio{grid-template-columns:1fr}
  .metrics{grid-template-columns:repeat(3,1fr)}
  .metric:nth-child(4){border-left:0}
  .step{grid-template-columns:auto 1fr}
  .step .chip{grid-column:2;justify-self:start}
  .step:nth-child(odd){margin-right:0}.step:nth-child(even){margin-left:0}
  #nav .links a[data-r="index"]{display:none}
  #eng-read{position:static;display:inline-block;margin-top:30px}
  .m-note{margin-top:0}
}
@media (max-width:560px){
  #nav{padding:0 250px 0 14px}#nav .links{display:none}
  #nav .brand{letter-spacing:.2em;font-size:.85rem}
  #nav-cta{padding:0 14px}
  .nav-app{padding:10px 14px;font-size:.54rem;white-space:nowrap}
  .paths{grid-template-columns:1fr}
  .layer-row{grid-template-columns:110px 1fr auto;font-size:.78rem}
}
@media (prefers-reduced-motion:reduce){
  .k-head .c{transform:none!important}
  [data-reveal]{transform:none!important;opacity:1!important}
}