:root{
  --navy:#0D1B2A; --navy-2:#11233a; --cyan:#00B4D8; --gold:#F7C548;
  --ink:#F0F7FF; --muted:#9fb3c8; --line:rgba(0,180,216,.18);
  --card:#0f2236;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--navy); color:var(--ink);
  font-family:'Inter',system-ui,sans-serif; line-height:1.65;
  -webkit-font-smoothing:antialiased;
  background-image:radial-gradient(circle at 80% -10%,rgba(0,180,216,.10),transparent 45%),
                   radial-gradient(circle at 0% 30%,rgba(247,197,72,.05),transparent 40%);
}
h1,h2,h3,.brand span,.eyebrow,.kicker,.btn{font-family:'Space Grotesk',sans-serif}
.accent{color:var(--cyan)}
a{color:inherit;text-decoration:none}

/* nav */
.nav{
  position:sticky;top:0;z-index:20;
  display:flex;align-items:center;justify-content:space-between;
  padding:16px clamp(20px,5vw,64px);
  background:rgba(13,27,42,.72);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;letter-spacing:.04em}
.brand span{font-size:18px}
.mark{width:34px;height:34px}
.nav-cta{
  font-size:14px;font-weight:500;color:var(--cyan);
  border:1px solid var(--line);border-radius:8px;padding:7px 14px;transition:.2s
}
.nav-cta:hover{background:var(--cyan);color:var(--navy)}

/* hero */
.hero{
  text-align:center;padding:clamp(60px,11vw,130px) clamp(20px,5vw,64px) 70px;
  max-width:880px;margin:0 auto
}
.eyebrow{
  text-transform:uppercase;letter-spacing:.28em;font-size:12px;
  color:var(--cyan);font-weight:500;margin-bottom:22px
}
h1{font-size:clamp(40px,8vw,76px);line-height:1.04;font-weight:700;letter-spacing:-.02em}
.lede{
  font-size:clamp(16px,2.4vw,20px);color:var(--muted);
  max-width:620px;margin:26px auto 0
}
.hero-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-top:38px}
.btn{
  display:inline-block;font-weight:500;font-size:15px;
  padding:13px 26px;border-radius:10px;transition:.2s;cursor:pointer;border:1px solid transparent
}
.btn-primary{background:var(--cyan);color:var(--navy);font-weight:700}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 10px 30px -10px var(--cyan)}
.btn-ghost{border-color:var(--line);color:var(--ink)}
.btn-ghost:hover{border-color:var(--cyan);color:var(--cyan)}
.ticker{
  display:flex;align-items:center;justify-content:center;gap:16px;flex-wrap:wrap;
  margin-top:54px;font-size:13px;letter-spacing:.04em;color:var(--muted)
}
.ticker i{width:4px;height:4px;border-radius:50%;background:var(--gold);display:inline-block}

/* sections */
.section{max-width:1000px;margin:0 auto;padding:clamp(50px,9vw,100px) clamp(20px,5vw,64px)}
.kicker{
  text-transform:uppercase;letter-spacing:.24em;font-size:12px;
  color:var(--gold);font-weight:500;margin-bottom:14px
}
h2{font-size:clamp(28px,5vw,42px);line-height:1.1;letter-spacing:-.01em}
.section-lede{color:var(--muted);font-size:clamp(15px,2vw,18px);max-width:600px;margin-top:16px}

/* cards */
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:18px;margin-top:42px}
.card{
  background:var(--card);border:1px solid var(--line);border-radius:14px;
  padding:28px 24px;transition:.2s
}
.card:hover{transform:translateY(-3px);border-color:rgba(0,180,216,.45)}
.card-ico{color:var(--cyan);font-size:24px;margin-bottom:14px}
.card h3{font-size:19px;margin-bottom:8px}
.card p{color:var(--muted);font-size:15px}

/* offer */
.offer{padding:clamp(20px,5vw,40px) clamp(20px,5vw,64px)}
.offer-inner{
  max-width:1000px;margin:0 auto;
  background:linear-gradient(160deg,var(--navy-2),#0c1c2e);
  border:1px solid var(--line);border-radius:20px;
  padding:clamp(34px,5vw,60px)
}
.offer-list{list-style:none;margin:26px 0 30px;display:grid;gap:12px}
.offer-list li{position:relative;padding-left:28px;color:var(--ink);font-size:15.5px}
.offer-list li::before{
  content:"";position:absolute;left:0;top:8px;width:14px;height:14px;
  border:2px solid var(--cyan);border-radius:4px
}
.micro{color:var(--muted);font-size:13px;margin-top:14px}

/* link stack */
.linkstack{display:grid;gap:12px;margin-top:38px;max-width:560px}
.link-row{
  display:flex;align-items:center;gap:16px;
  background:var(--card);border:1px solid var(--line);border-radius:12px;
  padding:16px 20px;transition:.2s
}
.link-row:hover{transform:translateX(4px);border-color:rgba(0,180,216,.45)}
.lr-ico{font-size:20px;color:var(--cyan);width:24px;text-align:center}
.lr-text{display:flex;flex-direction:column;flex:1}
.lr-text strong{font-weight:500;font-size:16px}
.lr-text em{font-style:normal;color:var(--muted);font-size:13px}
.lr-arrow{color:var(--muted);transition:.2s}
.link-row:hover .lr-arrow{color:var(--cyan);transform:translateX(3px)}
.link-row.soon{opacity:.5;cursor:default}
.link-row.soon::after{content:"soon";font-size:10px;letter-spacing:.1em;text-transform:uppercase;color:var(--gold);border:1px solid var(--line);border-radius:5px;padding:2px 7px}
.link-row.soon:hover{transform:none;border-color:var(--line)}

/* footer */
.footer{
  text-align:center;padding:60px 24px 50px;border-top:1px solid var(--line);margin-top:40px
}
.footer .mark{width:30px;height:30px;margin-bottom:16px}
.foot-line{font-family:'Space Grotesk',sans-serif;font-size:15px;color:var(--ink)}
.foot-micro{color:var(--muted);font-size:13px;margin-top:8px}

/* ============ REDESIGN v2 — calm cyberpunk ============ */
:root{ --blue:#5B8DEF; --cyan-2:#22C9E8; --mono:'JetBrains Mono',ui-monospace,monospace; }

/* business / trust CTA */
.btn-blue{background:var(--blue);color:#06101f;font-weight:700}
.btn-blue:hover{transform:translateY(-2px);box-shadow:0 10px 30px -10px var(--blue)}
.nav-cta.biz{color:#06101f;background:var(--blue);border-color:transparent}
.nav-cta.biz:hover{filter:brightness(1.08);background:var(--blue)}
.nav-links{display:flex;align-items:center;gap:18px}
.nav-link{font-size:14px;color:var(--muted)}
.nav-link:hover{color:var(--ink)}

/* scroll progress line */
.progress{position:fixed;top:0;left:0;height:2px;width:0;background:var(--cyan-2);z-index:40;transition:width .1s linear}

/* living-brain terminal */
.terminal{
  max-width:600px;margin:40px auto 0;text-align:left;
  background:#0a1422;border:1px solid var(--line);border-radius:12px;
  box-shadow:0 24px 60px -28px rgba(0,180,216,.35);overflow:hidden
}
.term-bar{display:flex;gap:7px;padding:11px 14px;border-bottom:1px solid var(--line);background:rgba(255,255,255,.02)}
.term-bar i{width:11px;height:11px;border-radius:50%;background:#26384d}
.term-bar i:first-child{background:#ff5f56}.term-bar i:nth-child(2){background:#ffbd2e}.term-bar i:nth-child(3){background:#27c93f}
.term-body{font-family:var(--mono);font-size:13.5px;line-height:1.9;padding:18px 20px;min-height:188px;color:var(--muted)}
.term-body .ln{white-space:pre-wrap}
.term-body .ok{color:var(--cyan-2)}.term-body .win{color:var(--gold)}
.cursor{display:inline-block;width:8px;height:15px;background:var(--cyan-2);vertical-align:-2px;animation:blink 1s steps(2) infinite}
@keyframes blink{50%{opacity:0}}

/* count-up ticker numbers */
.ticker b{color:var(--ink);font-family:var(--mono);font-weight:500}

/* two doors */
.doors{max-width:1000px;margin:0 auto;padding:10px clamp(20px,5vw,64px) 20px;display:grid;grid-template-columns:1fr 1fr;gap:18px}
@media(max-width:680px){.doors{grid-template-columns:1fr}}
.door{
  display:block;background:var(--card);border:1px solid var(--line);border-radius:16px;
  padding:30px 28px;transition:.2s;position:relative;overflow:hidden
}
.door:hover{transform:translateY(-4px)}
.door .tag{font-family:var(--mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.door h3{font-size:23px;margin:10px 0 8px}
.door p{color:var(--muted);font-size:15px}
.door .go{margin-top:16px;font-weight:500;font-size:14px}
.door-a:hover{border-color:var(--cyan-2)}
.door-a .tag,.door-a .go{color:var(--cyan-2)}
.door-b{background:linear-gradient(160deg,rgba(91,141,239,.14),#11243d);border-color:rgba(91,141,239,.4)}
.door-b:hover{border-color:var(--blue);box-shadow:0 18px 50px -24px var(--blue)}
.door-b .tag,.door-b .go{color:var(--blue)}
.door-b::after{content:"the real money path";position:absolute;top:14px;right:-34px;transform:rotate(45deg);background:var(--blue);color:#06101f;font-size:9px;letter-spacing:.08em;text-transform:uppercase;padding:3px 40px;font-family:var(--mono)}

/* ask-the-brain demo */
.demo{max-width:680px;margin:34px auto 0}
.demo-box{background:#0a1422;border:1px solid var(--line);border-radius:14px;padding:8px 8px 8px 18px;display:flex;gap:10px;align-items:center}
.demo-box input{flex:1;background:transparent;border:0;color:var(--ink);font-family:'Inter',sans-serif;font-size:15px;outline:none}
.demo-box input::placeholder{color:#5f7488}
.demo-box button{white-space:nowrap}
.demo-ans{margin-top:14px;background:var(--card);border:1px solid var(--line);border-left:3px solid var(--cyan-2);border-radius:10px;padding:16px 18px;font-size:14.5px;color:var(--ink);display:none}
.demo-ans.show{display:block}
.demo-ans .src{display:block;margin-top:8px;font-family:var(--mono);font-size:12px;color:var(--cyan-2)}
.demo-chips{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}
.chip{font-size:12.5px;color:var(--muted);border:1px solid var(--line);border-radius:20px;padding:5px 13px;cursor:pointer;transition:.15s;font-family:var(--mono)}
.chip:hover{border-color:var(--cyan-2);color:var(--cyan-2)}

/* proof strip */
.proof{max-width:1000px;margin:0 auto;padding:24px clamp(20px,5vw,64px);display:flex;gap:14px 28px;flex-wrap:wrap;justify-content:center;align-items:center;color:var(--muted);font-size:14px}
.proof .pi{display:flex;align-items:center;gap:8px}
.proof .pi b{color:var(--ink);font-weight:500}
.live-dot{width:8px;height:8px;border-radius:50%;background:#27c93f;box-shadow:0 0 0 0 rgba(39,201,63,.6);animation:pulse 2s infinite}
@keyframes pulse{70%{box-shadow:0 0 0 7px rgba(39,201,63,0)}100%{box-shadow:0 0 0 0 rgba(39,201,63,0)}}

/* scroll reveal */
.reveal{opacity:0;transform:translateY(20px);transition:opacity .5s ease,transform .5s ease}
.reveal.in{opacity:1;transform:none}

@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
}

/* ============ /private-ai — "quiet authority" (B2B trust) ============ */
:root{ --trust:#3E6DDF; --safe:#1FAE88; --paper:#F4F7FB; --paper-2:#FFFFFF; --paper-ink:#0B1623; }
body.biz{ background:var(--paper); color:#15202E; background-image:none }
body.biz .nav{ background:rgba(244,247,251,.85); border-bottom:1px solid #e2e8f1 }
body.biz .brand span{ color:#15202E }
.serif{ font-family:'Fraunces',Georgia,serif; font-weight:600; letter-spacing:-.01em }
body.biz .nav-cta.trust{ background:var(--trust); color:#fff; border-color:transparent }
body.biz .nav-cta.trust:hover{ filter:brightness(1.07);background:var(--trust) }

.biz-hero{ max-width:880px;margin:0 auto;text-align:center;padding:clamp(56px,10vw,110px) clamp(20px,5vw,64px) 50px }
.biz-hero .eyebrow{ color:var(--trust) }
.biz-hero h1{ font-family:'Fraunces',Georgia,serif;font-weight:600;color:#0e1a2b;
  font-size:clamp(38px,6.4vw,64px);line-height:1.05 }
.biz-hero h1 .u{ color:var(--trust) }
.biz-hero .lede{ color:#475A70;max-width:600px;margin:22px auto 0 }
.btn-trust{ background:var(--trust);color:#fff;font-weight:600 }
.btn-trust:hover{ transform:translateY(-2px);box-shadow:0 12px 30px -12px var(--trust) }

.trustbar{ display:flex;flex-wrap:wrap;gap:10px 26px;justify-content:center;
  max-width:900px;margin:30px auto 0;padding:16px 20px;background:#fff;border:1px solid #e2e8f1;
  border-radius:14px;font-size:14px;color:#33485f }
.trustbar b{ color:#0e1a2b;font-weight:600 }
.trustbar .s{ color:var(--safe);font-weight:700 }

.biz-sec{ max-width:920px;margin:0 auto;padding:clamp(40px,7vw,80px) clamp(20px,5vw,64px) }
.biz-sec h2{ font-family:'Fraunces',Georgia,serif;font-weight:600;color:#0e1a2b;font-size:clamp(26px,4vw,38px) }
.biz-sec .lede{ color:#475A70;font-size:clamp(15px,2vw,18px);max-width:640px;margin-top:14px }
.biz-sec .kicker{ color:var(--trust) }

/* data-stays-here diagram */
.dataflow{ display:flex;align-items:center;justify-content:center;gap:clamp(16px,5vw,60px);
  flex-wrap:wrap;margin-top:34px }
.df-box{ border:2px solid var(--trust);border-radius:16px;padding:24px 28px;background:#fff;
  text-align:center;min-width:200px;box-shadow:0 14px 34px -20px var(--trust) }
.df-box .t{ font-weight:700;color:#0e1a2b;margin-bottom:10px;font-size:15px }
.df-box .files{ font-size:30px;letter-spacing:4px }
.df-cloud{ border:2px dashed #c2ccd9;color:#9aa7b6;position:relative;background:#fbfcfe }
.df-cloud::after{ content:"✕ never";position:absolute;top:-12px;right:-12px;background:#e7536b;color:#fff;
  font-size:11px;font-weight:700;padding:3px 9px;border-radius:20px;font-family:'Inter',sans-serif }
.df-arrow{ color:var(--safe);font-weight:700;font-size:14px;display:flex;flex-direction:column;align-items:center;gap:4px }

/* ROI calculator */
.calc{ background:#fff;border:1px solid #e2e8f1;border-radius:18px;padding:clamp(24px,4vw,40px);margin-top:30px;
  box-shadow:0 18px 50px -30px rgba(62,109,223,.5) }
.calc label{ display:block;font-size:14px;color:#33485f;margin:18px 0 8px;font-weight:500 }
.calc input[type=range]{ width:100%;accent-color:var(--trust) }
.calc .val{ color:var(--trust);font-weight:700 }
.calc .result{ margin-top:26px;padding-top:22px;border-top:1px solid #eef2f7;text-align:center }
.calc .result .big{ font-family:'Fraunces',serif;font-size:clamp(32px,6vw,52px);color:var(--safe);font-weight:600 }
.calc .result .cap{ color:#566; font-size:14px;margin-top:4px }

/* FAQ accordion (native details) */
.faq{ margin-top:26px;display:grid;gap:12px }
.faq-item{ background:#fff;border:1px solid #e2e8f1;border-radius:12px;padding:4px 20px }
.faq-item summary{ cursor:pointer;font-weight:600;color:#0e1a2b;padding:16px 0;list-style:none;
  display:flex;justify-content:space-between;align-items:center;font-size:16px }
.faq-item summary::-webkit-details-marker{ display:none }
.faq-item summary::after{ content:"+";color:var(--trust);font-size:22px;font-weight:400 }
.faq-item[open] summary::after{ content:"–" }
.faq-item p{ color:#475A70;padding:0 0 18px;font-size:15px;line-height:1.7 }

body.biz .offer-list li{ color:#1d2b3a }
body.biz .offer-list li::before{ border-color:var(--trust) }
body.biz .footer{ border-top:1px solid #e2e8f1 }
body.biz .foot-line{ color:#0e1a2b }
.biz-cta{ text-align:center;background:linear-gradient(160deg,#eaf0fe,#fff);border:1px solid #d8e2f6;
  border-radius:20px;padding:clamp(32px,5vw,56px);margin:10px auto;max-width:920px }
.biz-cta h2{ font-family:'Fraunces',serif;color:#0e1a2b }