:root{
  --ink:#1B2430;
  --ledger:#EDEAE1;
  --ledger-line:#D8D3C6;
  --brass:#A8834F;
  --brass-dark:#7C5F38;
  --forecast:#3F6B52;
  --forecast-bg:#E4EBE5;
  --steel:#3E5A7D;
  --paper:#FAF8F3;
  --muted:#6B6558;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--ledger);
  color:var(--ink);
  font-family:'Inter',sans-serif;
  -webkit-font-smoothing:antialiased;
}
.wrap{max-width:1120px;margin:0 auto;padding:0 32px;}
h1,h2,h3{font-family:'Fraunces',serif;font-weight:500;margin:0;letter-spacing:-0.01em;}
.mono{font-family:'IBM Plex Mono',monospace;}

/* NAV */
nav{
  position:sticky;top:0;z-index:50;
  background:rgba(237,234,225,0.92);
  backdrop-filter:blur(6px);
  border-bottom:1px solid var(--ledger-line);
}
.nav-inner{
  display:flex;align-items:center;justify-content:space-between;
  padding:18px 32px;max-width:1120px;margin:0 auto;
}
.brand{display:flex;align-items:baseline;gap:10px;}
.brand-name{font-family:'Fraunces',serif;font-weight:600;font-size:1.15rem;letter-spacing:-0.01em;color:var(--ink);text-decoration:none;}
.brand-tag{font-family:'IBM Plex Mono',monospace;font-size:0.68rem;color:var(--muted);letter-spacing:0.06em;text-transform:uppercase;}
.nav-links{display:flex;gap:32px;align-items:center;}
.nav-links a{color:var(--ink);text-decoration:none;font-size:0.9rem;font-weight:500;opacity:0.75;transition:opacity .15s;}
.nav-links a:hover{opacity:1;}
.nav-links a.nav-cta{
  background:var(--ink);color:var(--paper);opacity:1;padding:9px 18px;border-radius:2px;
  font-size:0.85rem;font-weight:500;text-decoration:none;
}
@media(max-width:720px){.nav-links a:not(.nav-cta){display:none;}}

/* HERO */
header.hero{padding:88px 0 64px;}
.hero-grid{display:grid;grid-template-columns:1.05fr 0.95fr;gap:64px;align-items:start;}
@media(max-width:900px){.hero-grid{grid-template-columns:1fr;gap:48px;}}
.eyebrow{
  font-family:'IBM Plex Mono',monospace;font-size:0.72rem;letter-spacing:0.08em;
  text-transform:uppercase;color:var(--brass-dark);margin-bottom:18px;display:flex;align-items:center;gap:8px;
}
.eyebrow::before{content:'';width:7px;height:7px;background:var(--brass);border-radius:50%;display:inline-block;}
h1.headline{font-size:clamp(2.1rem,4vw,3.15rem);line-height:1.08;color:var(--ink);}
.headline em{font-style:italic;color:var(--brass-dark);}
.sub{font-size:1.08rem;line-height:1.6;color:var(--muted);margin-top:22px;max-width:46ch;}
.hero-actions{margin-top:32px;display:flex;gap:14px;flex-wrap:wrap;}
.btn-primary{
  background:var(--ink);color:var(--paper);padding:14px 26px;border-radius:2px;
  text-decoration:none;font-weight:500;font-size:0.95rem;
  border:1px solid var(--ink);
}
.btn-secondary{
  background:transparent;color:var(--ink);padding:13px 26px;border-radius:2px;
  text-decoration:none;font-weight:500;font-size:0.95rem;border:1px solid var(--ledger-line);
}

/* DEMO CARD (signature element) */
.demo-panel{
  background:var(--paper);border:1px solid var(--ledger-line);
  border-radius:3px;overflow:hidden;box-shadow:0 1px 0 rgba(27,36,48,0.04);
}
.demo-head{
  padding:14px 20px;border-bottom:1px solid var(--ledger-line);
  display:flex;align-items:center;justify-content:space-between;
}
.demo-head-label{font-family:'IBM Plex Mono',monospace;font-size:0.7rem;letter-spacing:0.06em;color:var(--muted);text-transform:uppercase;}
.demo-dot{width:8px;height:8px;border-radius:50%;background:var(--forecast);animation:pulse 2s infinite;}
@keyframes pulse{0%,100%{opacity:1;}50%{opacity:0.35;}}
.demo-body{padding:22px 20px;}
.demo-input-row{display:flex;gap:8px;margin-bottom:18px;}
.demo-input{
  flex:1;padding:11px 14px;border:1px solid var(--ledger-line);border-radius:2px;
  font-family:'Inter',sans-serif;font-size:0.92rem;background:var(--ledger);color:var(--ink);
}
.demo-input:focus{outline:2px solid var(--steel);outline-offset:1px;}
.demo-chips{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:20px;}
.chip{
  font-family:'IBM Plex Mono',monospace;font-size:0.72rem;padding:5px 10px;
  background:var(--ledger);border:1px solid var(--ledger-line);border-radius:20px;
  cursor:pointer;color:var(--muted);transition:all .15s;
}
.chip:hover{border-color:var(--brass);color:var(--brass-dark);}
.result-card{
  border:1px solid var(--ledger-line);border-radius:2px;padding:20px;
  background:linear-gradient(180deg,#fff,var(--paper));
  min-height:220px;
}
.result-empty{
  display:flex;align-items:center;justify-content:center;height:180px;
  color:var(--muted);font-size:0.88rem;text-align:center;line-height:1.6;
}
.result-title{font-family:'Fraunces',serif;font-size:1.25rem;margin-bottom:4px;}
.result-meta{font-family:'IBM Plex Mono',monospace;font-size:0.72rem;color:var(--muted);margin-bottom:18px;}
.stat-row{display:flex;justify-content:space-between;padding:10px 0;border-top:1px solid var(--ledger-line);}
.stat-row:first-of-type{border-top:none;}
.stat-label{font-size:0.85rem;color:var(--muted);}
.stat-value{font-family:'IBM Plex Mono',monospace;font-size:0.95rem;font-weight:500;}
.stat-value.up{color:var(--forecast);}
.stat-value.up::before{content:'↑ ';}
.chat-teaser{
  margin-top:16px;padding:12px 14px;background:var(--forecast-bg);border-radius:2px;
  font-size:0.85rem;color:var(--forecast);display:flex;gap:8px;align-items:flex-start;
}
.fade-in{animation:fadeIn .4s ease-out;}
@keyframes fadeIn{from{opacity:0;transform:translateY(6px);}to{opacity:1;transform:translateY(0);}}

/* SECTION SCAFFOLD */
section{padding:76px 0;border-top:1px solid var(--ledger-line);}
.section-head{max-width:640px;margin-bottom:48px;}
.section-eyebrow{font-family:'IBM Plex Mono',monospace;font-size:0.72rem;letter-spacing:0.08em;text-transform:uppercase;color:var(--brass-dark);margin-bottom:14px;}
.section-title{font-size:clamp(1.6rem,3vw,2.1rem);line-height:1.15;}
.section-sub{color:var(--muted);margin-top:14px;font-size:1.02rem;line-height:1.6;}

/* PIPELINE */
.pipeline{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--ledger-line);border:1px solid var(--ledger-line);}
@media(max-width:900px){.pipeline{grid-template-columns:1fr;}}
.pipe-step{background:var(--paper);padding:28px 24px;}
.pipe-num{font-family:'IBM Plex Mono',monospace;font-size:0.8rem;color:var(--brass);margin-bottom:14px;}
.pipe-title{font-family:'Fraunces',serif;font-size:1.1rem;margin-bottom:10px;}
.pipe-desc{font-size:0.9rem;color:var(--muted);line-height:1.55;}

/* TIERS */
.tiers{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border:1px solid var(--ledger-line);}
@media(max-width:900px){.tiers{grid-template-columns:1fr;}}
.tier{padding:32px 28px;border-right:1px solid var(--ledger-line);}
.tier:last-child{border-right:none;}
.tier-eyebrow{font-family:'IBM Plex Mono',monospace;font-size:0.7rem;color:var(--muted);text-transform:uppercase;letter-spacing:0.05em;}
.tier-name{font-family:'Fraunces',serif;font-size:1.35rem;margin:10px 0 16px;}
.tier ul{margin:0;padding:0;list-style:none;}
.tier li{font-size:0.88rem;color:var(--ink);padding:8px 0;border-top:1px solid var(--ledger-line);display:flex;gap:8px;}
.tier li:first-child{border-top:none;}
.tier li::before{content:'—';color:var(--brass);flex-shrink:0;}
.tier.featured{background:var(--ink);color:var(--paper);}
.tier.featured .tier-eyebrow{color:#B8B0A0;}
.tier.featured .tier-name{color:var(--paper);}
.tier.featured li{color:var(--paper);border-top-color:rgba(255,255,255,0.15);}

/* INTEGRATION */
.integ-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;}
@media(max-width:900px){.integ-grid{grid-template-columns:1fr;}}
.integ-list{list-style:none;padding:0;margin:0;}
.integ-list li{padding:16px 0;border-top:1px solid var(--ledger-line);font-size:0.95rem;line-height:1.6;}
.integ-list li:first-child{border-top:none;}
.integ-list strong{font-family:'Fraunces',serif;font-weight:500;display:block;margin-bottom:4px;}
.snippet-box{
  background:var(--ink);color:#D8D3C6;border-radius:3px;padding:22px;
  font-family:'IBM Plex Mono',monospace;font-size:0.78rem;line-height:1.7;overflow-x:auto;
}
.snippet-box .tag{color:#8FAF9C;}
.snippet-box .attr{color:#C9A876;}
.snippet-box .val{color:#E8E4D8;}
.snippet-box .comment{color:#6B7280;}

/* CTA */
.cta-section{background:var(--ink);color:var(--paper);border-top:none;}
.cta-grid{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:24px;}
.cta-grid h2{color:var(--paper);font-size:clamp(1.5rem,3vw,2rem);max-width:22ch;}
.cta-grid p{color:#B8B0A0;margin-top:10px;font-size:0.95rem;}

footer{
  padding:28px 0;color:var(--muted);font-size:0.85rem;
  background:rgba(237,234,225,0.92);
  border-top:1px solid var(--ledger-line);
}
.footer-grid{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:16px;}