:root{
  --ink:#0B2239;          /* deepest navy */
  --navy:#0F2942;         /* brand navy */
  --navy-2:#13314f;
  --teal:#0E8C6D;         /* brand teal, brightened for contrast */
  --teal-deep:#0F6E56;
  --mint:#9FE1CB;
  --paper:#F6F8F7;
  --paper-2:#EDF1EF;
  --line:#E0E6E3;
  --slate:#5B6B73;
  --slate-2:#41525a;
  --white:#FFFFFF;
  --cyan:#23C4A0;
  --shadow:0 1px 2px rgba(11,34,57,.06),0 8px 30px rgba(11,34,57,.08);
  --shadow-lg:0 24px 60px rgba(11,34,57,.18);
  --font-display:"Space Grotesk",-apple-system,system-ui,sans-serif;
  --font-body:"Inter",-apple-system,system-ui,sans-serif;
  --font-mono:"Space Mono","SFMono-Regular",ui-monospace,monospace;
  --maxw:1080px;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:var(--font-body);
  color:var(--navy);
  background:var(--paper);
  line-height:1.6;
  font-size:17px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.eyebrow{
  font-family:var(--font-mono);
  font-size:12px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--teal-deep);font-weight:700;
}
.muted{color:var(--slate)}

/* ---------- NAV ---------- */
.nav{
  position:sticky;top:0;z-index:50;
  background:rgba(246,248,247,.82);backdrop-filter:saturate(180%) blur(12px);
  border-bottom:1px solid var(--line);
}
.nav-in{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{font-family:var(--font-display);font-weight:700;font-size:18px;letter-spacing:-.01em;display:flex;align-items:center;gap:9px}
.brand .dot{width:9px;height:9px;border-radius:50%;background:var(--teal);box-shadow:0 0 0 4px rgba(14,140,109,.18)}
.nav-cta{font-family:var(--font-mono);font-size:13px;font-weight:700;padding:9px 16px;border-radius:8px;background:var(--navy);color:var(--white);transition:transform .15s ease,background .2s ease}
.nav-cta:hover{background:var(--teal-deep);transform:translateY(-1px)}

/* ---------- HERO ---------- */
.hero{padding:64px 0 28px;position:relative;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.hero h1{
  font-family:var(--font-display);
  font-size:clamp(34px,5vw,56px);
  line-height:1.04;letter-spacing:-.025em;font-weight:700;
  margin:18px 0 18px;
}
.hero h1 .hl{color:var(--teal-deep)}
.hero p.lead{font-size:19px;color:var(--slate-2);max-width:30ch;margin-bottom:28px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap}
.btn{
  font-family:var(--font-mono);font-weight:700;font-size:14px;
  padding:14px 22px;border-radius:10px;cursor:pointer;border:1.5px solid transparent;
  transition:transform .15s ease,background .2s ease,box-shadow .2s ease;
  display:inline-flex;align-items:center;gap:8px;
}
.btn-primary{background:var(--navy);color:var(--white)}
.btn-primary:hover{background:var(--teal-deep);transform:translateY(-2px);box-shadow:var(--shadow-lg)}
.btn-ghost{background:transparent;color:var(--navy);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--teal);color:var(--teal-deep)}

/* Chat exchange — the signature element */
.chat{
  background:var(--white);border:1px solid var(--line);border-radius:20px;
  box-shadow:var(--shadow-lg);overflow:hidden;
}
.chat-top{display:flex;align-items:center;justify-content:space-between;padding:13px 16px;border-bottom:1px solid var(--line);background:linear-gradient(180deg,#fff,#fafdfb)}
.chat-engine{display:flex;align-items:center;gap:8px;font-family:var(--font-mono);font-size:12px;font-weight:700;color:var(--navy);letter-spacing:.02em}
.ai-dot{width:22px;height:22px;border-radius:7px;background:var(--navy);display:grid;place-items:center;color:var(--mint);font-family:var(--font-mono);font-size:11px;font-weight:700}
.chat-flag{font-family:var(--font-mono);font-size:10px;letter-spacing:.12em;text-transform:uppercase;color:var(--slate);border:1px solid var(--line);border-radius:999px;padding:3px 9px}
.chat-stream{padding:20px 18px;display:flex;flex-direction:column;gap:16px;background:
  radial-gradient(120% 80% at 100% 0%,rgba(14,140,109,.05),transparent 60%),var(--paper)}
.msg{display:flex;max-width:100%}
.msg p{font-size:15px;line-height:1.55}
/* sent message (the buyer's question) */
.msg-user{justify-content:flex-end}
.msg-user p{
  background:var(--navy);color:#eaf3f0;padding:12px 16px;
  border-radius:16px 16px 4px 16px;max-width:82%;font-weight:500;
  box-shadow:0 6px 18px rgba(11,34,57,.16);
}
/* received message (the AI answer) */
.msg-ai{align-items:flex-start;gap:10px}
.msg-av{flex:0 0 auto;width:26px;height:26px;border-radius:8px;background:var(--navy);color:var(--mint);display:grid;place-items:center;font-family:var(--font-mono);font-size:11px;font-weight:700;margin-top:2px}
.msg-bubble{
  background:#fff;border:1px solid var(--line);padding:14px 16px;
  border-radius:4px 16px 16px 16px;max-width:88%;box-shadow:var(--shadow);
}
.msg-bubble strong{color:var(--teal-deep)}
.caret{display:inline-block;width:7px;height:15px;background:var(--teal);margin-left:3px;vertical-align:-2px;border-radius:1px;animation:blink 1.1s steps(1) infinite}
@keyframes blink{50%{opacity:0}}
.cite-row{display:flex;flex-wrap:wrap;gap:6px;margin-top:14px;padding-top:12px;border-top:1px dashed var(--line)}
.cite{font-family:var(--font-mono);font-size:10.5px;color:var(--slate);border:1px solid var(--line);border-radius:999px;padding:4px 9px;background:var(--paper)}
.cite b{color:var(--teal-deep);font-weight:700}

/* ---------- PROOF BAND ---------- */
.proof{background:var(--navy);color:#dfeae6;padding:30px 0}
.proof-in{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.stat .n{font-family:var(--font-mono);font-size:clamp(26px,3.4vw,38px);font-weight:700;color:var(--white);letter-spacing:-.02em;line-height:1}
.stat:nth-child(3) .n{font-size:clamp(24px,3vw,34px)}
.stat .l{font-size:13px;color:#a7bcb4;margin-top:8px;line-height:1.4}
.stat .l b{color:var(--mint);font-weight:600}

/* ---------- SECTIONS ---------- */
.sec{padding:84px 0}
.sec-head{max-width:680px;margin-bottom:42px}
.sec-head h2{font-family:var(--font-display);font-size:clamp(26px,3.6vw,40px);line-height:1.1;letter-spacing:-.02em;font-weight:700;margin:14px 0 14px}
.sec-head p{font-size:18px;color:var(--slate-2)}

.sec-alt{background:var(--paper-2)}
.sec-dark{background:var(--navy);color:#e7efec}
.sec-dark .sec-head h2{color:#fff}
.sec-dark .sec-head p{color:#a7bcb4}
.sec-dark .eyebrow{color:var(--mint)}

/* problem statement */
.lede{font-family:var(--font-display);font-size:clamp(22px,3vw,32px);line-height:1.32;letter-spacing:-.01em;font-weight:500;max-width:20ch}
.lede .hl{color:var(--teal-deep)}
.sec-dark .lede .hl{color:var(--mint)}
.problem-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}

/* layers (what I do) */
.layers{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:start}
.layer{display:flex;gap:16px;padding:22px 0;border-top:1px solid var(--line)}
.layer:first-child{border-top:none}
.layer .ix{font-family:var(--font-mono);font-size:13px;font-weight:700;color:var(--teal-deep);padding-top:3px;min-width:34px}
.layer h3{font-family:var(--font-display);font-size:20px;font-weight:700;letter-spacing:-.01em;margin-bottom:6px}
.layer p{color:var(--slate-2);font-size:15.5px}

/* cases */
.case{
  background:var(--white);border:1px solid var(--line);border-radius:18px;overflow:hidden;
  box-shadow:var(--shadow);margin-bottom:28px;
  transition:transform .25s ease,box-shadow .25s ease;
}
.case:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg)}
.case-grid{display:grid;grid-template-columns:1fr 1.15fr;gap:0;align-items:stretch}
.case-body{padding:34px 34px}
.case-tag{font-family:var(--font-mono);font-size:12px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--teal-deep)}
.case-body h3{font-family:var(--font-display);font-size:24px;font-weight:700;letter-spacing:-.015em;margin:10px 0 12px}
.case-body p{color:var(--slate-2);font-size:15.5px;margin-bottom:18px}
.metrics{display:flex;flex-wrap:wrap;gap:10px}
.metric{font-family:var(--font-mono);font-size:13px;border:1px solid var(--line);border-radius:9px;padding:8px 11px;background:var(--paper);color:var(--navy)}
.metric b{color:var(--teal-deep)}
.case-shot{background:var(--paper-2);display:grid;place-items:center;padding:18px;border-left:1px solid var(--line)}
.case-shot img{border-radius:10px;box-shadow:var(--shadow);width:100%}

/* testimonials — rolling ticker */
.testi{overflow:hidden}
.ticker{
  position:relative;margin-top:6px;
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 6%,#000 94%,transparent);
          mask-image:linear-gradient(90deg,transparent,#000 6%,#000 94%,transparent);
}
.ticker-track{
  display:flex;gap:22px;width:max-content;
  animation:ticker 64s linear infinite;
  will-change:transform;
}
.ticker:hover .ticker-track,
.ticker:focus-within .ticker-track{animation-play-state:paused}
@keyframes ticker{to{transform:translateX(-50%)}}
.tcard{
  flex:0 0 360px;max-width:360px;
  background:#13314f;border:1px solid #1c456b;border-radius:16px;
  padding:24px 24px 26px;display:flex;flex-direction:column;gap:14px;
}
.tcard-head{display:flex;align-items:center;gap:12px}
.tlogo{width:42px;height:42px;border-radius:11px;object-fit:cover;background:#fff;flex:0 0 auto;border:1px solid #1c456b}
.tlogo-mono{display:grid;place-items:center;background:linear-gradient(160deg,#1b4068,#13314f);color:var(--mint);font-family:var(--font-display);font-weight:700;font-size:18px;border:1px solid #245184}
.tcard .who{font-family:var(--font-mono);font-size:11px;color:#9fc0bb;letter-spacing:.02em;line-height:1.5}
.tcard .who b{display:block;font-family:var(--font-display);color:#fff;font-size:14.5px;letter-spacing:-.01em}
.tcard p{font-size:14.5px;color:#dfeae6;line-height:1.55}

/* about */
.about-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:48px;align-items:center}
.portrait{border-radius:18px;overflow:hidden;box-shadow:var(--shadow-lg);background:var(--navy-2);aspect-ratio:3/4}
.portrait img{width:100%;height:100%;object-fit:cover}
.about-body h2{font-family:var(--font-display);font-size:clamp(26px,3.4vw,38px);line-height:1.12;letter-spacing:-.02em;margin-bottom:18px}
.about-body p{color:var(--slate-2);margin-bottom:16px;font-size:16.5px}
.about-body p strong{color:var(--navy)}
.about-chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:8px}
.chip{font-family:var(--font-mono);font-size:12px;border:1px solid var(--line);border-radius:999px;padding:6px 12px;color:var(--slate-2)}

/* FAQ */
.faq{max-width:760px}
.faq details{border-bottom:1px solid var(--line);padding:6px 0}
.faq summary{font-family:var(--font-display);font-weight:600;font-size:18px;padding:18px 0;cursor:pointer;list-style:none;display:flex;justify-content:space-between;gap:16px;letter-spacing:-.01em}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-family:var(--font-mono);color:var(--teal-deep);font-size:22px;transition:transform .2s ease}
.faq details[open] summary::after{content:"\2013"}
.faq p{color:var(--slate-2);padding:0 0 20px;font-size:16px;max-width:68ch}

/* contact — offer + visibility-check console */
.sec-contact{background:linear-gradient(180deg,var(--paper),var(--paper-2))}
.offer{
  display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;
  background:linear-gradient(155deg,var(--navy),var(--ink));
  border-radius:26px;padding:52px 48px;box-shadow:var(--shadow-lg);
}
.offer-pitch .eyebrow{color:var(--mint)}
.offer-pitch h2{font-family:var(--font-display);font-size:clamp(27px,3.4vw,40px);line-height:1.08;letter-spacing:-.025em;color:#fff;margin:14px 0 16px}
.offer-sub{color:#a7bcb4;font-size:17px;margin-bottom:22px}
.offer-list{list-style:none;display:grid;gap:11px;margin-bottom:22px}
.offer-list li{display:flex;gap:11px;align-items:flex-start;color:#dfeae6;font-size:15px;line-height:1.45}
.offer-list li::before{
  content:"";flex:0 0 auto;width:18px;height:18px;margin-top:2px;border-radius:6px;
  background:var(--teal);
  -webkit-mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='%23000' d='M9.5 16.2 4.8 11.5l1.4-1.4 3.3 3.3 8.3-8.3 1.4 1.4z'/%3E%3C/svg%3E") center/86% no-repeat;
          mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='%23000' d='M9.5 16.2 4.8 11.5l1.4-1.4 3.3 3.3 8.3-8.3 1.4 1.4z'/%3E%3C/svg%3E") center/86% no-repeat;
}
.offer-meta{font-family:var(--font-mono);font-size:12.5px;color:#8fb3ac;line-height:1.6}

.console{
  background:#0a1f33;border:1px solid #20445f;border-radius:16px;overflow:hidden;
  box-shadow:0 20px 50px rgba(0,0,0,.35);
}
.console-top{display:flex;align-items:center;gap:7px;padding:12px 15px;border-bottom:1px solid #1a3a52;background:#0c233a}
.console-dot{width:10px;height:10px;border-radius:50%;background:#2c5070}
.console-dot:nth-child(1){background:#e0625f}.console-dot:nth-child(2){background:#e3b341}.console-dot:nth-child(3){background:var(--cyan)}
.console-title{margin-left:8px;font-family:var(--font-mono);font-size:12px;color:#7fa39d;letter-spacing:.04em}
.console-form{padding:22px 22px 24px;display:grid;gap:16px}
.field{display:grid;gap:7px}
.field-label{font-family:var(--font-mono);font-size:11px;letter-spacing:.06em;text-transform:uppercase;color:#7fa39d}
.console-form input{
  font-family:var(--font-body);font-size:15px;padding:13px 14px;border-radius:10px;
  border:1px solid #224863;background:#08192a;color:#fff;width:100%;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.console-form input::placeholder{color:#5d7e8a}
.console-form input:focus{outline:none;border-color:var(--teal);box-shadow:0 0 0 3px rgba(14,140,109,.25)}
.btn-run{justify-content:center;background:var(--teal);color:#04231b;margin-top:4px}
.btn-run:hover{background:var(--mint);transform:translateY(-2px);box-shadow:var(--shadow-lg)}
.btn-run:disabled{opacity:.7;cursor:default;transform:none;box-shadow:none}
.form-status{font-family:var(--font-mono);font-size:12.5px;line-height:1.5;min-height:1px;margin-top:2px}
.form-status.ok{color:var(--cyan)}
.form-status.err{color:#f0a3a0}

/* footer */
.foot{padding:48px 0 60px;border-top:1px solid var(--line);background:var(--paper)}
.foot-in{display:flex;justify-content:space-between;align-items:flex-start;flex-wrap:wrap;gap:24px}
.foot .brand{margin-bottom:10px}
.foot small{color:var(--slate);font-size:13px;line-height:1.7;display:block}
.foot-links{display:flex;gap:18px;flex-wrap:wrap}
.foot-links-col{flex-direction:column;gap:10px}
.foot-links a{font-family:var(--font-mono);font-size:13px;color:var(--slate-2)}
.foot-links a:hover{color:var(--teal-deep)}

/* reveal */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}

/* responsive */
@media (max-width:880px){
  .hero-grid,.problem-grid,.layers,.case-grid,.about-grid{grid-template-columns:1fr}
  .proof-in{grid-template-columns:1fr 1fr;gap:22px}
  .case-shot{border-left:none;border-top:1px solid var(--line)}
  .hero{padding-top:40px}
  .sec{padding:60px 0}
  .about-grid{gap:30px}
  .portrait{max-width:320px}
  .offer{grid-template-columns:1fr;gap:30px;padding:36px 26px}
  .tcard{flex-basis:300px;max-width:300px}
  .ticker-track{animation-duration:48s}
}
@media (max-width:520px){
  .proof-in{grid-template-columns:1fr 1fr;gap:18px}
  .offer{padding:30px 20px;border-radius:20px}
  .msg-user p,.msg-bubble{max-width:94%}
}

/* accessible focus + motion */
a:focus-visible,button:focus-visible,summary:focus-visible,
.console-form input:focus-visible{
  outline:2.5px solid var(--teal);outline-offset:2px;border-radius:6px;
}
@media (prefers-reduced-motion:reduce){
  .caret{animation:none}
  .reveal{transition:none;opacity:1;transform:none}
  .ticker-track{animation:none;flex-wrap:wrap;width:100%;justify-content:center}
  .ticker{-webkit-mask-image:none;mask-image:none}
  .case:hover{transform:none}
  html{scroll-behavior:auto}
}

/* layers without the side image */
.layers-solo{grid-template-columns:1fr 1fr;column-gap:48px}
.case-grid-solo{grid-template-columns:1fr}
.layers-solo .layer{border-top:1px solid var(--line)}
@media (max-width:880px){ .layers-solo{grid-template-columns:1fr} }