/* ==========================================================================
   UltraTrace — shared stylesheet
   Extracted from the home-page mockup, plus components for inner pages.
   ========================================================================== */

:root{
  --bg-0:#0A0C1E;          /* deepest indigo-black */
  --bg-1:#0D1026;
  --bg-2:#11152F;
  --card:#12173414;
  --card-solid:#131838;
  --line:rgba(146,156,242,.13);
  --line-strong:rgba(146,156,242,.24);
  --ink:#EAECF8;
  --ink-2:#A9AFD0;
  --ink-3:#777EA6;
  --brand:#424A93;
  --accent:#7D88E8;
  --accent-2:#A3ACF5;
  --mint:#5BDFAE;
  --amber:#E8B45A;
  --rose:#E87C9C;
  --logo-ink:#EAECF8;
  --logo-accent:#8C96EE;
  --radius:14px;
  --radius-lg:20px;
  --wrap:1180px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  background:var(--bg-0);
  color:var(--ink);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
  font-size:16px;
  line-height:1.6;
}
::selection{background:rgba(125,136,232,.35)}
a{color:inherit}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 32px}
.mono{font-family:'JetBrains Mono',monospace}

/* logo fills */
.lgd{fill:var(--logo-ink)}
.lgi{fill:var(--logo-accent)}

/* ---------- shared section bits ---------- */
section{position:relative}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;
  color:var(--accent-2);margin-bottom:18px;
}
.eyebrow::before{content:"";width:22px;height:1.5px;background:var(--accent);opacity:.7}
h2.sec-title{
  font-size:clamp(30px,3.6vw,44px);font-weight:700;letter-spacing:-.025em;line-height:1.13;
  max-width:760px;
}
.sec-sub{color:var(--ink-2);font-size:18px;max-width:640px;margin-top:18px}

/* ---------- reveal animation ---------- */
.rv{opacity:0;transform:translateY(22px);transition:opacity .7s cubic-bezier(.2,.6,.2,1),transform .7s cubic-bezier(.2,.6,.2,1)}
.rv.on{opacity:1;transform:none}
.rv.d1{transition-delay:.08s}.rv.d2{transition-delay:.16s}.rv.d3{transition-delay:.24s}.rv.d4{transition-delay:.32s}
@media (prefers-reduced-motion:reduce){
  .rv{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:9px;
  font-size:15px;font-weight:600;letter-spacing:-.01em;
  padding:13px 24px;border-radius:10px;text-decoration:none;
  transition:all .22s ease;white-space:nowrap;cursor:pointer;border:1px solid transparent;
}
.btn-primary{
  background:linear-gradient(135deg,#5662C8 0%,#424A93 100%);
  color:#fff;
  box-shadow:0 1px 0 rgba(255,255,255,.15) inset,0 8px 24px -8px rgba(86,98,212,.55);
}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 1px 0 rgba(255,255,255,.18) inset,0 14px 32px -8px rgba(86,98,212,.7)}
.btn-ghost{
  color:var(--ink);border-color:var(--line-strong);background:rgba(146,156,242,.05);
}
.btn-ghost:hover{border-color:rgba(146,156,242,.45);background:rgba(146,156,242,.1)}
.btn .arr{transition:transform .22s ease;display:inline-block}
.btn:hover .arr{transform:translateX(3px)}

/* ---------- nav ---------- */
header.site-header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  background:rgba(10,12,30,.72);
  backdrop-filter:blur(18px) saturate(1.4);
  -webkit-backdrop-filter:blur(18px) saturate(1.4);
  border-bottom:1px solid rgba(146,156,242,.1);
}
.nav{display:flex;align-items:center;gap:36px;height:68px}
.brand{display:flex;align-items:center;text-decoration:none;flex-shrink:0}
.brand svg{height:30px;width:auto;display:block}
.nav-links{display:flex;gap:28px;align-items:center;margin-left:8px}
.nav-links a{
  color:var(--ink-2);text-decoration:none;font-size:14.5px;font-weight:500;
  transition:color .18s ease;
}
.nav-links a:hover{color:var(--ink)}
.nav-links a.active{color:var(--ink)}
.nav-cta{margin-left:auto;display:flex;gap:20px;align-items:center}
.nav-cta .login{color:var(--ink-2);text-decoration:none;font-size:14.5px;font-weight:500}
.nav-cta .login:hover{color:var(--ink)}
.nav-cta .btn{padding:9px 18px;font-size:14px}

/* mobile nav toggle */
.nav-toggle{
  display:none;margin-left:auto;background:none;border:1px solid var(--line-strong);
  border-radius:9px;width:40px;height:38px;cursor:pointer;align-items:center;justify-content:center;
}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  content:"";display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;position:relative;transition:.2s;
}
.nav-toggle span::before{position:absolute;top:-6px}
.nav-toggle span::after{position:absolute;top:6px}
body.nav-open .nav-toggle span{background:transparent}
body.nav-open .nav-toggle span::before{transform:rotate(45deg);top:0}
body.nav-open .nav-toggle span::after{transform:rotate(-45deg);top:0}

/* ---------- page hero (inner pages) ---------- */
.page-hero{
  padding:150px 0 70px;
  background:
    radial-gradient(1000px 460px at 80% -20%,rgba(86,98,200,.18),transparent 60%),
    var(--bg-0);
}
.page-hero h1{
  font-size:clamp(34px,4.4vw,52px);font-weight:800;letter-spacing:-.03em;line-height:1.07;max-width:880px;
}
.page-hero h1 .grad{
  background:linear-gradient(100deg,#A3ACF5 0%,#7D88E8 55%,#5BC8DF 110%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.page-hero p.lede{font-size:19px;color:var(--ink-2);margin-top:22px;max-width:620px;line-height:1.65}
.page-hero .hero-ctas{display:flex;gap:14px;flex-wrap:wrap;margin-top:34px}

/* generic content section */
.section{padding:90px 0;background:var(--bg-0)}
.section.alt{background:linear-gradient(180deg,var(--bg-1),var(--bg-0))}
.prose{max-width:760px}
.prose p{color:var(--ink-2);font-size:16.5px;line-height:1.7;margin-top:18px}
.prose p:first-child{margin-top:0}
.prose h3{font-size:22px;font-weight:700;letter-spacing:-.02em;margin-top:40px}
.prose ul{list-style:none;margin-top:18px;display:flex;flex-direction:column;gap:12px}
.prose ul li{
  color:var(--ink-2);font-size:16px;line-height:1.6;padding-left:28px;position:relative;
}
.prose ul li::before{
  content:"";position:absolute;left:0;top:9px;width:14px;height:14px;border-radius:4px;
  background:rgba(125,136,232,.18);border:1px solid rgba(125,136,232,.4);
}

/* feature grid (reused) */
.feature-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;margin-top:52px}
.feature-grid.cols-3{grid-template-columns:repeat(3,1fr)}
.feature-grid.cols-4{grid-template-columns:repeat(4,1fr)}
.fcard{
  border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:30px 30px 28px;
  background:linear-gradient(180deg,rgba(146,156,242,.05),rgba(146,156,242,.015));
  transition:border-color .25s ease,transform .25s ease,box-shadow .25s ease;
}
.fcard:hover{border-color:rgba(146,156,242,.32);transform:translateY(-3px);box-shadow:0 24px 48px -24px rgba(4,6,20,.9)}
.fcard .ic{
  width:40px;height:40px;border-radius:11px;display:flex;align-items:center;justify-content:center;
  background:rgba(125,136,232,.1);border:1px solid rgba(125,136,232,.25);color:var(--accent-2);margin-bottom:16px;
}
.fcard .chip{
  font-size:11px;font-weight:600;letter-spacing:.1em;text-transform:uppercase;
  color:var(--accent-2);margin-bottom:14px;display:flex;align-items:center;gap:8px;
}
.fcard h3{font-size:20px;font-weight:700;letter-spacing:-.02em;margin-bottom:10px}
.fcard h4{font-size:16px;font-weight:650;margin-bottom:7px;letter-spacing:-.01em}
.fcard p{color:var(--ink-2);font-size:15px;line-height:1.62}

/* ---------- how it works steps ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:56px}
.step{
  border:1px solid var(--line);border-radius:var(--radius-lg);padding:32px;
  background:linear-gradient(180deg,rgba(146,156,242,.045),transparent);position:relative;
}
.step .num{
  font-family:'JetBrains Mono',monospace;font-size:13px;font-weight:600;color:var(--accent);
  display:inline-flex;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:12px;margin-bottom:20px;
  background:rgba(125,136,232,.1);border:1px solid rgba(125,136,232,.28);
}
.step h3{font-size:19px;font-weight:700;letter-spacing:-.015em;margin-bottom:10px}
.step p{color:var(--ink-2);font-size:15px;line-height:1.62}
.step .note{margin-top:16px;font-size:12.5px;color:var(--ink-3);display:flex;gap:7px;align-items:flex-start}

/* ---------- trust points ---------- */
.trust-points{display:flex;flex-direction:column;gap:22px;margin-top:38px}
.tp{display:flex;gap:16px;align-items:flex-start}
.tp .ic{
  flex-shrink:0;width:40px;height:40px;border-radius:11px;display:flex;align-items:center;justify-content:center;
  background:rgba(125,136,232,.1);border:1px solid rgba(125,136,232,.25);color:var(--accent-2);
}
.tp h4{font-size:16px;font-weight:650;letter-spacing:-.01em}
.tp p{color:var(--ink-2);font-size:14.5px;line-height:1.58;margin-top:3px}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:72px;align-items:center}

/* architecture diagram */
.arch{
  border:1px solid rgba(146,156,242,.18);border-radius:var(--radius-lg);
  background:linear-gradient(180deg,#12173A,#0E1230);padding:28px;position:relative;
  box-shadow:0 32px 64px -28px rgba(4,6,20,.85);
}
.arch .boundary{border:1.5px dashed rgba(91,223,174,.4);border-radius:14px;padding:20px;position:relative}
.arch .boundary .blab{
  position:absolute;top:-10px;left:16px;font-size:10px;font-weight:700;letter-spacing:.1em;
  text-transform:uppercase;color:var(--mint);background:#101536;padding:0 9px;
}
.arch-row{display:flex;gap:10px;justify-content:center;flex-wrap:wrap}
.arch-nd{
  font-size:11px;font-weight:600;color:var(--ink-2);text-align:center;
  border:1px solid rgba(146,156,242,.22);border-radius:9px;padding:9px 13px;
  background:rgba(146,156,242,.06);flex:1;min-width:0;
}
.arch-nd small{display:block;font-weight:500;color:var(--ink-3);font-size:9px;margin-top:2px}
.arch-nd.core{
  background:linear-gradient(135deg,rgba(86,98,200,.35),rgba(66,74,147,.25));
  border-color:rgba(125,136,232,.45);color:#fff;
}
.arch-v{display:flex;justify-content:center;color:var(--ink-3);font-size:13px;padding:7px 0}
.arch-foot{
  margin-top:16px;display:flex;align-items:center;gap:8px;justify-content:center;
  font-size:11.5px;color:var(--mint);font-weight:600;text-align:center;
}

/* ---------- stats ---------- */
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:52px}
.stat{
  text-align:center;padding:36px 24px;border:1px solid var(--line);border-radius:var(--radius-lg);
  background:linear-gradient(180deg,rgba(146,156,242,.05),transparent);
}
.stat .big{
  font-size:46px;font-weight:800;letter-spacing:-.03em;line-height:1;
  background:linear-gradient(120deg,#C6CCFA,#7D88E8);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.stat p{color:var(--ink-2);font-size:14.5px;margin-top:12px;line-height:1.5}

/* ---------- testimonials ---------- */
.testis{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:52px}
.testi{
  border:1px solid var(--line);border-radius:var(--radius-lg);padding:34px;
  background:linear-gradient(180deg,rgba(146,156,242,.055),rgba(146,156,242,.015));
  display:flex;flex-direction:column;
}
.testi blockquote{font-size:18px;line-height:1.6;color:var(--ink);letter-spacing:-.01em;flex-grow:1}
.testi .who{display:flex;align-items:center;gap:14px;margin-top:26px}
.testi .av{
  width:42px;height:42px;border-radius:50%;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:14px;color:#fff;
}
.testi .who b{display:block;font-size:14.5px;font-weight:650}
.testi .who span{font-size:13px;color:var(--ink-3)}
.logo-wall{
  display:flex;gap:18px 54px;flex-wrap:wrap;justify-content:center;align-items:center;
  margin-top:64px;padding-top:44px;border-top:1px solid rgba(146,156,242,.08);
}
.lw{font-size:17px;font-weight:700;letter-spacing:-.01em;color:var(--ink-3);opacity:.8;transition:opacity .25s,color .25s}
.lw:hover{opacity:1;color:var(--ink-2)}
.lw.serif{font-family:Georgia,serif;font-weight:600;letter-spacing:.02em}
.lw.mono-w{font-family:'JetBrains Mono',monospace;font-weight:600;font-size:15px;letter-spacing:.04em}
.lw.wide{letter-spacing:.22em;font-weight:600;font-size:14px;text-transform:uppercase}

/* ---------- pricing ---------- */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:54px;align-items:stretch}
.price{
  border:1px solid var(--line);border-radius:var(--radius-lg);padding:34px 30px;
  background:linear-gradient(180deg,rgba(146,156,242,.05),rgba(146,156,242,.015));
  display:flex;flex-direction:column;
}
.price.featured{
  border-color:rgba(125,136,232,.5);
  background:linear-gradient(180deg,rgba(86,98,200,.16),rgba(86,98,200,.03));
  box-shadow:0 28px 56px -28px rgba(4,6,20,.9);
}
.price .tier{font-size:13px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--accent-2)}
.price .badge{
  font-size:10.5px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:#fff;
  background:linear-gradient(135deg,#5662C8,#424A93);padding:3px 10px;border-radius:99px;margin-left:8px;
}
.price .amt{font-size:34px;font-weight:800;letter-spacing:-.03em;margin:16px 0 4px}
.price .amt small{font-size:14px;font-weight:500;color:var(--ink-3);letter-spacing:0}
.price .desc{color:var(--ink-2);font-size:14.5px;line-height:1.55;margin-bottom:22px}
.price ul{list-style:none;display:flex;flex-direction:column;gap:11px;margin-bottom:28px;flex-grow:1}
.price ul li{color:var(--ink-2);font-size:14.5px;line-height:1.5;padding-left:26px;position:relative}
.price ul li::before{
  content:"";position:absolute;left:0;top:6px;width:12px;height:7px;border-left:2px solid var(--mint);
  border-bottom:2px solid var(--mint);transform:rotate(-45deg);
}
.price .btn{width:100%;justify-content:center}

/* ---------- docs layout ---------- */
.docs-layout{display:grid;grid-template-columns:230px 1fr;gap:48px;align-items:start}
.docs-nav{
  position:sticky;top:96px;border:1px solid var(--line);border-radius:var(--radius);
  padding:20px;background:rgba(146,156,242,.03);
}
.docs-nav h5{font-size:11px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-3);margin:16px 0 8px}
.docs-nav h5:first-child{margin-top:0}
.docs-nav a{display:block;color:var(--ink-2);text-decoration:none;font-size:14px;padding:5px 0;transition:color .18s}
.docs-nav a:hover{color:var(--ink)}
.docs-body h2{font-size:28px;font-weight:700;letter-spacing:-.02em;margin-top:48px;scroll-margin-top:90px}
.docs-body h2:first-child{margin-top:0}
.docs-body h3{font-size:18px;font-weight:650;margin-top:30px}
.docs-body p{color:var(--ink-2);font-size:16px;line-height:1.7;margin-top:14px}
.docs-body ul{margin:14px 0 0 0;padding-left:0;list-style:none;display:flex;flex-direction:column;gap:10px}
.docs-body ul li{color:var(--ink-2);font-size:15.5px;line-height:1.6;padding-left:24px;position:relative}
.docs-body ul li::before{content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:50%;background:var(--accent)}
.code{
  font-family:'JetBrains Mono',monospace;font-size:13px;color:var(--ink-2);
  background:rgba(10,12,30,.6);border:1px solid var(--line);border-radius:10px;
  padding:16px 18px;margin-top:16px;overflow-x:auto;line-height:1.6;white-space:pre;
}
.callout{
  border:1px solid rgba(91,223,174,.3);border-radius:12px;background:rgba(91,223,174,.06);
  padding:16px 18px;margin-top:18px;font-size:14.5px;color:var(--ink-2);line-height:1.6;
}

/* ---------- contact / demo form ---------- */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:start;margin-top:8px}
.form-card{
  border:1px solid var(--line-strong);border-radius:var(--radius-lg);padding:34px;
  background:linear-gradient(180deg,rgba(146,156,242,.06),rgba(146,156,242,.02));
}
.field{margin-bottom:18px}
.field label{display:block;font-size:13px;font-weight:600;color:var(--ink-2);margin-bottom:7px}
.field input,.field select,.field textarea{
  width:100%;font-family:inherit;font-size:15px;color:var(--ink);
  background:rgba(10,12,30,.5);border:1px solid var(--line-strong);border-radius:10px;
  padding:12px 14px;transition:border-color .18s,box-shadow .18s;
}
.field input::placeholder,.field textarea::placeholder{color:var(--ink-3)}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:rgba(125,136,232,.6);box-shadow:0 0 0 3px rgba(125,136,232,.15);
}
.field textarea{min-height:110px;resize:vertical}
.field.row2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-note{font-size:12.5px;color:var(--ink-3);margin-top:6px}
.form-success{
  display:none;border:1px solid rgba(91,223,174,.35);background:rgba(91,223,174,.08);
  border-radius:12px;padding:16px 18px;color:var(--mint);font-size:15px;font-weight:600;margin-bottom:18px;
}
.contact-points{display:flex;flex-direction:column;gap:24px;margin-top:32px}

/* ---------- CTA band ---------- */
.cta{
  padding:130px 0;text-align:center;
  background:
    radial-gradient(700px 360px at 50% 115%,rgba(86,98,200,.3),transparent 65%),
    var(--bg-0);
}
.cta h2{font-size:clamp(30px,3.6vw,46px);font-weight:800;letter-spacing:-.03em;line-height:1.1;max-width:720px;margin:0 auto}
.cta p{color:var(--ink-2);font-size:18px;max-width:560px;margin:22px auto 38px}
.cta .hero-ctas{display:flex;gap:14px;flex-wrap:wrap;justify-content:center}
.cta .fine{margin-top:26px;font-size:13px;color:var(--ink-3)}

/* ---------- provider strip ---------- */
.providers{padding:34px 0 30px;border-top:1px solid rgba(146,156,242,.08);border-bottom:1px solid rgba(146,156,242,.08);background:var(--bg-1)}
.prov-inner{display:flex;align-items:center;gap:40px;justify-content:space-between;flex-wrap:wrap}
.prov-label{font-size:12px;color:var(--ink-3);letter-spacing:.12em;text-transform:uppercase;font-weight:600;flex-shrink:0}
.prov-list{display:flex;gap:38px;flex-wrap:wrap;align-items:center}
.prov{font-size:15.5px;font-weight:600;color:var(--ink-3);letter-spacing:-.01em;display:inline-flex;align-items:center;gap:9px;transition:color .25s ease}
.prov:hover{color:var(--ink-2)}
.prov svg{opacity:.75}

/* ---------- footer ---------- */
footer.site-footer{border-top:1px solid rgba(146,156,242,.1);background:var(--bg-1);padding:64px 0 40px}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:48px}
.foot-brand svg{height:26px;width:auto}
.foot-brand p{color:var(--ink-3);font-size:13.5px;margin-top:16px;max-width:280px;line-height:1.6}
.foot-col h5{font-size:12px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-2);margin-bottom:18px}
.foot-col a{display:block;color:var(--ink-3);text-decoration:none;font-size:14px;padding:5px 0;transition:color .18s}
.foot-col a:hover{color:var(--ink)}
.foot-base{
  display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap;
  margin-top:56px;padding-top:28px;border-top:1px solid rgba(146,156,242,.08);
  color:var(--ink-3);font-size:13px;
}
.foot-base a{color:var(--ink-3);text-decoration:none}
.foot-base a:hover{color:var(--ink-2)}

/* ---------- responsive ---------- */
@media (max-width:1020px){
  .two-col{grid-template-columns:1fr;gap:56px}
  .feature-grid,.testis,.form-grid{grid-template-columns:1fr}
  .feature-grid.cols-3,.feature-grid.cols-4{grid-template-columns:1fr 1fr}
  .steps,.stats,.price-grid{grid-template-columns:1fr 1fr}
  .foot-grid{grid-template-columns:1fr 1fr;gap:36px}
  .docs-layout{grid-template-columns:1fr;gap:28px}
  .docs-nav{position:static}
  .nav-links{
    position:fixed;top:68px;left:0;right:0;flex-direction:column;gap:0;margin:0;
    background:rgba(10,12,30,.97);backdrop-filter:blur(18px);
    border-bottom:1px solid var(--line);padding:8px 0;
    transform:translateY(-12px);opacity:0;pointer-events:none;transition:.2s;
  }
  .nav-links a{padding:13px 32px;width:100%;font-size:16px}
  body.nav-open .nav-links{transform:none;opacity:1;pointer-events:auto}
  .nav-toggle{display:flex}
  .nav-cta .login{display:none}
}
@media (max-width:640px){
  .wrap{padding:0 20px}
  .feature-grid.cols-3,.feature-grid.cols-4,.steps,.stats,.price-grid{grid-template-columns:1fr}
  .field.row2{grid-template-columns:1fr}
  .page-hero{padding-top:128px}
}