/* ============================================================
   vqs.ai marketing site — self-contained stylesheet
   Zero JS. Dark, technical, premium. Mirrors the Vanquish AI
   design system tokens.
   ============================================================ */

:root{
  --ink-900:#060708; --ink-850:#0A0B0D; --ink-800:#101216; --ink-750:#16191E;
  --ink-700:#1C2026; --ink-650:#242830; --ink-600:#2E333C;
  --ink-400:#474C53; --ink-300:#6A7079; --ink-200:#9BA1A9; --ink-100:#C6CBD1; --ink-050:#F4F6F8;
  --lime-400:#C8FA5E; --lime-500:#B8F23D; --lime-600:#9AD516;
  --gain:#16C784; --loss:#F0616D; --warning:#F5B23E; --info:#4C8DFF;

  --bg:#0A0B0D; --surface-1:#101216; --surface-2:#16191E; --surface-3:#1C2026;
  --border-subtle:rgba(255,255,255,.06); --border:rgba(255,255,255,.10); --border-strong:rgba(255,255,255,.16);
  --border-brand:rgba(184,242,61,.45);
  --text:#F4F6F8; --text-2:#9BA1A9; --text-3:#6A7079; --text-4:#474C53; --on-brand:#0B1300;
  --brand:#B8F23D; --brand-soft:rgba(184,242,61,.12); --brand-soft-2:rgba(184,242,61,.20);
  --glow:0 0 0 1px rgba(184,242,61,.30),0 6px 24px rgba(184,242,61,.22);

  --font-sans:"Geist",ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:"Geist Mono",ui-monospace,"SF Mono","JetBrains Mono",monospace;
  --r-sm:6px; --r-md:8px; --r-lg:12px; --r-xl:16px; --r-pill:999px;
  --shadow-md:0 8px 24px rgba(0,0,0,.5); --shadow-lg:0 18px 50px rgba(0,0,0,.6);
  --maxw:1180px; --ease:cubic-bezier(.2,0,0,1);
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth; scroll-padding-top:84px; -webkit-text-size-adjust:100%}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{
  margin:0; background:var(--bg); color:var(--text);
  font-family:var(--font-sans); font-size:16px; line-height:1.6;
  -webkit-font-smoothing:antialiased; text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
a{color:inherit; text-decoration:none}
img,svg{display:block; max-width:100%}
h1,h2,h3,h4{margin:0; font-weight:600; letter-spacing:-.02em; line-height:1.1; text-wrap:balance}
p{margin:0}
ul{margin:0; padding:0; list-style:none}
:focus-visible{outline:2px solid rgba(184,242,61,.55); outline-offset:2px; border-radius:3px}
::selection{background:var(--brand-soft-2); color:var(--text)}

.wrap{max-width:var(--maxw); margin:0 auto; padding:0 24px}
.eyebrow{display:inline-flex; align-items:center; gap:8px; font-family:var(--font-mono);
  font-size:12px; font-weight:500; letter-spacing:.12em; text-transform:uppercase; color:var(--text-3)}
.mono{font-family:var(--font-mono); font-variant-numeric:tabular-nums}
.gain{color:var(--gain)} .loss{color:var(--loss)}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}

/* dot */
.dot{width:7px;height:7px;border-radius:50%;background:var(--brand);flex:none;box-shadow:0 0 8px rgba(184,242,61,.5)}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 20px;
  border-radius:var(--r-sm);font-size:15px;font-weight:600;letter-spacing:-.01em;cursor:pointer;
  border:1px solid transparent;white-space:nowrap;transition:background .13s var(--ease),border-color .13s,box-shadow .13s,transform .08s}
.btn svg{width:17px;height:17px}
.btn:active{transform:translateY(.5px)}
.btn-primary{background:var(--brand);color:var(--on-brand)}
.btn-primary:hover{background:var(--lime-400);box-shadow:var(--glow)}
.btn-secondary{background:var(--surface-2);color:var(--text);border-color:var(--border)}
.btn-secondary:hover{background:var(--surface-3);border-color:var(--border-strong)}
.btn-ghost{background:transparent;color:var(--text-2)}
.btn-ghost:hover{color:var(--text);background:var(--surface-2)}
.btn-sm{height:36px;padding:0 14px;font-size:14px}
.btn-lg{height:50px;padding:0 26px;font-size:16px}

/* ---------- nav ---------- */
.nav{position:sticky;top:0;z-index:50;background:rgba(10,11,13,.72);backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);border-bottom:1px solid var(--border-subtle)}
.nav-inner{display:flex;align-items:center;gap:28px;height:64px;max-width:var(--maxw);margin:0 auto;padding:0 24px}
.brand{display:flex;align-items:center;gap:10px;font-size:16px;font-weight:600;letter-spacing:-.02em}
.brand .ai{color:var(--text-3)}
.nav-links{display:flex;align-items:center;gap:26px;margin-left:6px}
.nav-links a{font-size:14px;color:var(--text-2);transition:color .13s}
.nav-links a:hover{color:var(--text)}
.nav-ext{display:inline-flex;align-items:center;gap:4px}
.nav-ext svg{width:13px;height:13px;opacity:.6}
.nav-cta{margin-left:auto;display:flex;align-items:center;gap:14px}
.nav-signin{font-size:14px;font-weight:500;color:var(--text-2)}
.nav-signin:hover{color:var(--text)}
.nav-toggle,.nav-burger{display:none}
.nav-links .btn{display:none}

/* invite pill */
.pill{display:inline-flex;align-items:center;gap:8px;padding:5px 12px;border-radius:var(--r-pill);white-space:nowrap;
  font-family:var(--font-mono);font-size:12px;font-weight:500;letter-spacing:.04em;
  background:var(--brand-soft);color:var(--brand);border:1px solid var(--border-brand)}

/* ---------- section rhythm ---------- */
section{position:relative}
.section{padding:92px 0}
.section-head{max-width:640px;margin:0 0 48px}
.section-head h2{font-size:clamp(28px,4vw,38px);margin:14px 0 0}
.section-head p{color:var(--text-2);margin-top:16px;font-size:17px}

/* ---------- hero ---------- */
.hero{padding:90px 0 64px; background:radial-gradient(900px 460px at 78% -10%,rgba(184,242,61,.07),transparent 60%)}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.hero h1{font-size:clamp(38px,5.4vw,58px);margin:20px 0 0}
.hero .sub{font-size:clamp(16px,2vw,19px);color:var(--text-2);margin-top:22px;max-width:46ch}
.hero-actions{display:flex;gap:12px;margin-top:30px;flex-wrap:wrap}
.hero-meta{display:flex;gap:22px;margin-top:26px;flex-wrap:wrap}
.hero-meta li{display:flex;align-items:center;gap:7px;font-size:13px;color:var(--text-3)}
.hero-meta svg{width:15px;height:15px;color:var(--brand);flex:none}

/* glass product panel */
.glass{background:linear-gradient(180deg,var(--surface-2),var(--surface-1));border:1px solid var(--border);
  border-radius:var(--r-xl);padding:20px;box-shadow:var(--shadow-lg);position:relative}
.glass::before{content:"";position:absolute;inset:0;border-radius:inherit;box-shadow:inset 0 1px 0 rgba(255,255,255,.04);pointer-events:none}
.glass-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.glass-bot{display:flex;align-items:center;gap:9px;font-weight:600;font-size:14px}
.glass-bot .ico{display:inline-flex;width:30px;height:30px;align-items:center;justify-content:center;border-radius:var(--r-sm);background:var(--surface-3);border:1px solid var(--border);color:var(--brand)}
.glass-status{display:inline-flex;align-items:center;gap:7px;font-family:var(--font-mono);font-size:12px;color:var(--info)}
.glass-status .d{width:7px;height:7px;border-radius:50%;background:var(--info)}
.glass-metrics{display:flex;gap:26px;margin-bottom:14px}
.glass-metrics .l{font-family:var(--font-mono);font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--text-3)}
.glass-metrics .v{font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-size:20px;font-weight:600;letter-spacing:-.02em;margin-top:5px}
.glass-foot{display:flex;align-items:center;justify-content:space-between;margin-top:14px;padding-top:14px;border-top:1px solid var(--border-subtle)}
.glass-foot .code{font-family:var(--font-mono);font-size:12px;color:var(--text-2)}
.tag-brand{white-space:nowrap;font-family:var(--font-mono);font-size:11px;padding:3px 9px;border-radius:var(--r-sm);background:var(--brand-soft);color:var(--brand);border:1px solid var(--border-brand)}

/* ---------- broker strip ---------- */
.brokers{padding:14px 0 6px;text-align:center}
.brokers .lbl{margin-bottom:18px}
.broker-logos{display:flex;flex-wrap:wrap;justify-content:center;align-items:center;gap:14px 30px}
.broker{display:inline-flex;align-items:center;gap:9px;font-size:15px;font-weight:500;color:var(--text-2)}
.broker svg{width:18px;height:18px;color:var(--text-3)}
.broker.soon{color:var(--text-4)}
.broker.soon .pill-soon{font-family:var(--font-mono);font-size:10px;letter-spacing:.08em;text-transform:uppercase;color:var(--text-4);border:1px solid var(--border-subtle);border-radius:var(--r-pill);padding:1px 7px;margin-left:2px}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.step{padding:22px;background:var(--surface-1);border:1px solid var(--border-subtle);border-radius:var(--r-lg)}
.step-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.step-n{font-family:var(--font-mono);font-size:13px;letter-spacing:.1em;color:var(--text-4)}
.step-ico{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:var(--r-md);background:var(--brand-soft);color:var(--brand);border:1px solid var(--border-brand)}
.step-ico svg{width:18px;height:18px}
.step h3{font-size:16px;margin-bottom:8px}
.step p{font-size:14px;color:var(--text-3);line-height:1.55}

/* ---------- features ---------- */
.features{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.feature{padding:26px;background:var(--surface-1);border:1px solid var(--border-subtle);border-radius:var(--r-lg);transition:border-color .2s,background .2s}
.feature:hover{border-color:var(--border);background:var(--surface-2)}
.feature-ico{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;border-radius:var(--r-md);background:var(--surface-3);color:var(--brand);border:1px solid var(--border);margin-bottom:18px}
.feature-ico svg{width:20px;height:20px}
.feature h3{font-size:17px;margin-bottom:9px}
.feature p{font-size:14px;color:var(--text-3);line-height:1.6}

/* ---------- security ---------- */
.security{background:linear-gradient(180deg,transparent,rgba(255,255,255,.012))}
.sec-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px 28px}
.sec-item{display:flex;gap:13px;padding:6px 0}
.sec-item .ico{flex:none;display:inline-flex;align-items:center;justify-content:center;width:30px;height:30px;border-radius:var(--r-sm);background:var(--brand-soft);color:var(--brand)}
.sec-item .ico svg{width:16px;height:16px}
.sec-item h3{font-size:15px;margin-bottom:4px}
.sec-item p{font-size:13.5px;color:var(--text-3);line-height:1.5}

/* ---------- pricing ---------- */
.pricing-top{display:flex;flex-direction:column;align-items:center;text-align:center;margin-bottom:36px}
.pricing-top h2{font-size:clamp(28px,4vw,38px);margin-top:14px}
.pricing-top p{color:var(--text-2);margin-top:16px;max-width:54ch}
.bill-toggle{display:inline-flex;background:var(--surface-1);border:1px solid var(--border);border-radius:var(--r-pill);padding:4px;margin-top:26px;gap:2px}
.bill-toggle label{display:inline-flex;align-items:center;gap:7px;padding:7px 18px;border-radius:var(--r-pill);font-size:14px;font-weight:500;color:var(--text-2);cursor:pointer;transition:color .13s,background .13s;white-space:nowrap}
.bill-toggle .save{white-space:nowrap;font-family:var(--font-mono);font-size:10px;letter-spacing:.06em;text-transform:uppercase;color:var(--brand);background:var(--brand-soft);border-radius:var(--r-pill);padding:1px 7px}
.bill-radio{position:absolute;opacity:0;pointer-events:none}
#bill-m:checked ~ .bill-toggle label[for="bill-m"],
#bill-a:checked ~ .bill-toggle label[for="bill-a"]{background:var(--surface-3);color:var(--text)}
.plans{display:grid;grid-template-columns:1fr 1fr;gap:18px;align-items:stretch;max-width:820px;margin:0 auto}
.plan{display:flex;flex-direction:column;gap:18px;padding:28px;background:var(--surface-1);border:1px solid var(--border-subtle);border-radius:var(--r-xl)}
.plan.featured{border-color:var(--border-brand);background:linear-gradient(180deg,rgba(184,242,61,.05),var(--surface-1));box-shadow:var(--shadow-md)}
.plan-head{display:flex;align-items:center;justify-content:space-between}
.plan-name{font-size:16px;font-weight:600}
.plan-price{display:flex;align-items:baseline;gap:5px;min-height:48px}
.amt{font-family:var(--font-mono);font-size:42px;font-weight:600;letter-spacing:-.03em;line-height:1}
.per{font-family:var(--font-mono);font-size:14px;color:var(--text-3)}
.plan-price .price-monthly,.plan-price .price-annual{display:flex;align-items:baseline;gap:5px}
.plan-price .price-annual{display:none}
#bill-a:checked ~ .plans .plan-price .price-monthly{display:none}
#bill-a:checked ~ .plans .plan-price .price-annual{display:flex}
.save-inline{white-space:nowrap;font-family:var(--font-mono);font-size:10px;letter-spacing:.06em;text-transform:uppercase;color:var(--brand);background:var(--brand-soft);border-radius:var(--r-pill);padding:2px 8px;align-self:center;margin-left:4px}
.plan-note{font-size:13px;color:var(--text-3);margin-top:-8px}
.plan-feats{display:flex;flex-direction:column;gap:11px;flex:1}
.plan-feats li{display:flex;align-items:flex-start;gap:9px;font-size:14px;color:var(--text-2)}
.plan-feats svg{width:16px;height:16px;color:var(--brand);flex:none;margin-top:2px}
.pricing-fine{text-align:center;color:var(--text-3);font-size:13px;margin-top:24px}

/* ---------- FAQ ---------- */
.faq{max-width:780px;margin:0 auto}
.faq details{border-bottom:1px solid var(--border-subtle)}
.faq summary{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 2px;
  font-size:16px;font-weight:500;cursor:pointer;list-style:none;color:var(--text)}
.faq summary::-webkit-details-marker{display:none}
.faq summary .chev{flex:none;width:18px;height:18px;color:var(--text-3);transition:transform .2s var(--ease)}
.faq details[open] summary .chev{transform:rotate(180deg)}
.faq .ans{padding:0 2px 22px;color:var(--text-2);font-size:15px;line-height:1.65;max-width:68ch}

/* ---------- CTA band ---------- */
.cta{padding:80px 0}
.cta-inner{position:relative;overflow:hidden;border:1px solid var(--border);border-radius:var(--r-xl);
  background:radial-gradient(700px 300px at 50% 0,rgba(184,242,61,.10),transparent 65%),var(--surface-1);
  padding:56px 32px;text-align:center;display:flex;flex-direction:column;align-items:center}
.cta-inner h2{font-size:clamp(26px,4vw,36px);max-width:18ch}
.cta-inner p{color:var(--text-2);margin-top:14px;max-width:46ch}
.cta-actions{display:flex;gap:12px;margin-top:28px;flex-wrap:wrap;justify-content:center}

/* ---------- risk band ---------- */
.risk{border-top:1px solid var(--border-subtle);border-bottom:1px solid var(--border-subtle);background:var(--ink-900)}
.risk-inner{display:flex;gap:14px;align-items:flex-start;max-width:var(--maxw);margin:0 auto;padding:20px 24px}
.risk svg{width:18px;height:18px;color:var(--warning);flex:none;margin-top:2px}
.risk p{font-size:13px;line-height:1.6;color:var(--text-3)}
.risk b{color:var(--text-2)}

/* ---------- footer ---------- */
.footer{background:var(--surface-1);border-top:1px solid var(--border-subtle)}
.footer-top{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:32px;max-width:var(--maxw);margin:0 auto;padding:56px 24px 36px}
.footer-brand p{font-size:14px;color:var(--text-3);line-height:1.6;margin:16px 0 14px;max-width:34ch}
.footer-brand .vqs{font-family:var(--font-mono);font-size:13px;color:var(--brand);letter-spacing:.04em}
.footer-col h4{font-family:var(--font-mono);font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--text-3);font-weight:500;margin-bottom:14px}
.footer-col a{display:block;font-size:14px;color:var(--text-2);margin-bottom:11px;transition:color .13s}
.footer-col a:hover{color:var(--text)}
.footer-bottom{max-width:var(--maxw);margin:0 auto;padding:20px 24px;border-top:1px solid var(--border-subtle);
  display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;font-size:12px;color:var(--text-4)}
.footer-bottom .legal{max-width:52ch}

/* ---------- legal pages ---------- */
.legal-page{max-width:760px;margin:0 auto;padding:64px 24px 90px}
.legal-page .eyebrow{margin-bottom:14px}
.legal-page h1{font-size:clamp(30px,5vw,40px)}
.legal-page .updated{color:var(--text-3);font-size:14px;margin-top:12px}
.legal-page h2{font-size:20px;margin:40px 0 12px}
.legal-page p,.legal-page li{color:var(--text-2);font-size:15px;line-height:1.7}
.legal-page ul{list-style:disc;padding-left:20px;display:flex;flex-direction:column;gap:8px;margin-top:10px}
.legal-page .back{display:inline-flex;align-items:center;gap:6px;color:var(--text-2);font-size:14px;margin-bottom:8px}
.legal-page .back:hover{color:var(--text)}

/* ---------- responsive ---------- */
@media (max-width:900px){
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .steps{grid-template-columns:1fr 1fr}
  .features{grid-template-columns:1fr 1fr}
  .sec-grid{grid-template-columns:1fr 1fr}
  .footer-top{grid-template-columns:1fr 1fr}
}
@media (max-width:720px){
  .section{padding:64px 0}
  .hero{padding:56px 0 48px}
  .nav-cta .btn{display:none}
  .nav-burger{display:inline-flex;margin-left:auto;align-items:center;justify-content:center;width:40px;height:40px;
    border:1px solid var(--border);border-radius:var(--r-sm);background:var(--surface-1);color:var(--text);cursor:pointer}
  .nav-burger svg{width:20px;height:20px}
  .nav-cta{display:none}
  .nav-links{position:fixed;inset:64px 0 auto 0;flex-direction:column;align-items:stretch;gap:0;
    background:rgba(10,11,13,.97);backdrop-filter:blur(18px);border-bottom:1px solid var(--border);
    padding:8px 24px 20px;transform:translateY(-120%);transition:transform .26s var(--ease);max-height:calc(100vh - 64px);overflow:auto}
  .nav-links a{padding:14px 0;border-bottom:1px solid var(--border-subtle);font-size:16px}
  .nav-links .btn{display:flex;margin-top:14px}
  .nav-toggle:checked ~ .nav-inner .nav-links{transform:translateY(0)}
  .steps,.features,.sec-grid,.plans,.footer-top{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:10px}
  .glass-metrics{gap:18px}
}
@media (max-width:380px){ .hero h1{font-size:34px} }