@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@500;600;700&family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root{
  --ink:#0B1220;
  --ink-soft:#3A4252;
  --muted:#6B7280;
  --paper:#FFFFFF;
  --mist:#F5F6F8;
  --mist-2:#EEF0F3;
  --line:#E6E8EC;
  --demand:#0E9F6E;
  --demand-soft:#E4F6EF;
  --supply:#E5484D;
  --supply-soft:#FCE9E9;
  --signal:#F5A623;
  --signal-soft:#FDF1DC;
  --radius:14px;
  --radius-sm:8px;
  --shadow-sm:0 1px 2px rgba(11,18,32,.04);
  --shadow-md:0 8px 24px rgba(11,18,32,.06);
  --shadow-lg:0 24px 60px rgba(11,18,32,.10);
  --ease:cubic-bezier(.16,1,.3,1);
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:'Inter',system-ui,sans-serif;
  font-size:16px;
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
h1,h2,h3,h4{
  font-family:'Space Grotesk',sans-serif;
  font-weight:600;
  line-height:1.12;
  margin:0;
  letter-spacing:-0.01em;
}
p{margin:0;}
.mono{font-family:'JetBrains Mono',monospace;}

.wrap{max-width:1180px;margin:0 auto;padding:0 24px;}
section{position:relative;}

/* focus visibility */
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{
  outline:2px solid var(--signal);
  outline-offset:3px;
  border-radius:4px;
}

@media (prefers-reduced-motion: reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important;}
}

/* ---------- Header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  padding:18px 0;
  background:rgba(255,255,255,.55);
  backdrop-filter:saturate(180%) blur(14px);
  -webkit-backdrop-filter:saturate(180%) blur(14px);
  border-bottom:1px solid rgba(230,232,236,0);
  transition:background .3s var(--ease),border-color .3s var(--ease),padding .3s var(--ease),box-shadow .3s var(--ease);
}
.site-header.is-scrolled{
  padding:12px 0;
  background:rgba(255,255,255,.86);
  border-bottom:1px solid var(--line);
  box-shadow:var(--shadow-sm);
}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:17px;}
.brand img{height:38px;width:auto;}
.brand-fallback{
  height:38px;width:38px;border-radius:9px;
  background:linear-gradient(135deg,var(--ink) 0%,#232C3D 60%,var(--signal) 130%);
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-family:'Space Grotesk',sans-serif;font-weight:700;font-size:16px;
}
.main-nav{display:flex;align-items:center;gap:34px;}
.main-nav a{
  font-size:14.5px;font-weight:500;color:var(--ink-soft);
  padding:6px 0;position:relative;
}
.main-nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--signal);transform:scaleX(0);transform-origin:left;
  transition:transform .25s var(--ease);
}
.main-nav a:hover{color:var(--ink);}
.main-nav a:hover::after{transform:scaleX(1);}
.header-actions{display:flex;align-items:center;gap:18px;}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-family:'Inter',sans-serif;font-weight:600;font-size:14.5px;
  padding:11px 20px;border-radius:999px;border:1px solid transparent;
  cursor:pointer;transition:transform .18s var(--ease),box-shadow .18s var(--ease),background .18s var(--ease),border-color .18s var(--ease);
  min-height:44px;white-space:nowrap;
}
.btn-primary{background:var(--ink);color:#fff;box-shadow:var(--shadow-sm);}
.btn-primary:hover{transform:translateY(-1px);box-shadow:var(--shadow-md);background:#171F30;}
.btn-signal{background:var(--signal);color:var(--ink);}
.btn-signal:hover{transform:translateY(-1px);box-shadow:0 10px 24px rgba(245,166,35,.35);}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line);}
.btn-ghost:hover{border-color:var(--ink);}
.btn-sm{padding:9px 16px;font-size:13.5px;min-height:38px;}

.menu-toggle{
  display:none;width:44px;height:44px;border-radius:10px;border:1px solid var(--line);
  background:#fff;align-items:center;justify-content:center;cursor:pointer;
}
.menu-toggle span, .menu-toggle span::before, .menu-toggle span::after{
  content:"";display:block;width:18px;height:2px;background:var(--ink);position:relative;
  transition:transform .2s var(--ease),opacity .2s var(--ease);
}
.menu-toggle span::before{position:absolute;top:-6px;}
.menu-toggle span::after{position:absolute;top:6px;}

/* ---------- Hero ---------- */
.hero{
  padding:168px 0 96px;
  background:
    radial-gradient(1100px 480px at 82% -10%, var(--signal-soft) 0%, rgba(253,241,220,0) 60%),
    radial-gradient(900px 460px at -10% 20%, var(--demand-soft) 0%, rgba(228,246,239,0) 60%);
}
.hero .wrap{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:'JetBrains Mono',monospace;font-size:12.5px;font-weight:500;
  color:var(--ink-soft);background:var(--mist);border:1px solid var(--line);
  padding:6px 12px;border-radius:999px;margin-bottom:22px;
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--demand);}
.hero h1{font-size:clamp(2.3rem,4.2vw,3.4rem);color:var(--ink);}
.hero h1 .hl{color:var(--demand);}
.hero p.lead{margin-top:22px;font-size:18px;color:var(--ink-soft);max-width:52ch;}
.hero-cta{display:flex;gap:14px;margin-top:34px;flex-wrap:wrap;}
.hero-meta{display:flex;gap:28px;margin-top:40px;flex-wrap:wrap;}
.hero-meta div{font-size:13px;color:var(--muted);}
.hero-meta strong{display:block;font-family:'Space Grotesk',sans-serif;font-size:20px;color:var(--ink);font-weight:600;}

/* Hero chart visual */
.chart-card{
  position:relative;background:var(--paper);border:1px solid var(--line);
  border-radius:20px;box-shadow:var(--shadow-lg);padding:20px 20px 16px;
}
.chart-card .chart-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px;}
.chart-tag{font-family:'JetBrains Mono',monospace;font-size:12px;color:var(--muted);}
.chart-badges{display:flex;gap:6px;}
.chip{width:9px;height:9px;border-radius:50%;}
svg.hero-chart{width:100%;height:auto;display:block;}

/* ---------- Section headers ---------- */
.section-head{max-width:640px;margin:0 auto 48px;text-align:center;}
.section-head .eyebrow{margin-left:auto;margin-right:auto;}
.section-head h2{font-size:clamp(1.7rem,3vw,2.4rem);}
.section-head p{margin-top:16px;color:var(--ink-soft);font-size:16.5px;}
.section-pad{padding:96px 0;}
.bg-mist{background:var(--mist);}

/* ---------- Markets grid ---------- */
.markets-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:16px;}
.market-card{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 18px;text-align:center;transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.market-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:transparent;}
.market-card .icon{
  width:44px;height:44px;margin:0 auto 14px;border-radius:12px;
  background:var(--mist);display:flex;align-items:center;justify-content:center;color:var(--ink);
}
.market-card h3{font-size:15px;font-weight:600;margin-bottom:6px;}
.market-card p{font-size:13px;color:var(--muted);}

/* ---------- Feature rows (Objective & Transparent) ---------- */
.feature-rows{display:flex;flex-direction:column;gap:18px;}
.feature-row{
  display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;
  background:var(--paper);border:1px solid var(--line);border-radius:20px;
  padding:44px;
}
.feature-row .badge{
  display:inline-flex;align-items:center;gap:8px;font-family:'JetBrains Mono',monospace;
  font-size:12px;color:var(--muted);margin-bottom:14px;
}
.feature-row h3{font-size:1.4rem;margin-bottom:12px;}
.feature-row p{color:var(--ink-soft);font-size:15.5px;}
.feature-visual{
  border-radius:14px;border:1px solid var(--line);background:var(--mist);
  padding:22px;display:flex;align-items:center;justify-content:center;min-height:180px;
}

/* ---------- How to use tabs ---------- */
.use-tabs{display:flex;gap:10px;justify-content:center;margin-bottom:36px;}
.tab-btn{
  font-family:'Inter',sans-serif;font-weight:600;font-size:14px;
  padding:10px 20px;border-radius:999px;border:1px solid var(--line);background:var(--paper);
  cursor:pointer;color:var(--ink-soft);min-height:44px;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.tab-btn[aria-selected="true"]{background:var(--ink);color:#fff;border-color:var(--ink);}
.use-panel{display:none;}
.use-panel.is-active{display:grid;grid-template-columns:.9fr 1.1fr;gap:44px;align-items:flex-start;}
.use-steps{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:22px;}
.use-steps li{display:flex;gap:16px;}
.use-steps .num{
  font-family:'JetBrains Mono',monospace;font-weight:600;font-size:13px;
  width:32px;height:32px;flex:none;border-radius:9px;background:var(--mist);
  display:flex;align-items:center;justify-content:center;color:var(--ink);
}
.use-steps h4{font-size:15.5px;font-weight:600;margin-bottom:4px;}
.use-steps p{font-size:14.5px;color:var(--ink-soft);}
.use-note{
  background:var(--paper);border:1px solid var(--line);border-radius:16px;padding:28px;
}
.use-note h4{font-size:14px;color:var(--muted);font-family:'JetBrains Mono',monospace;font-weight:500;margin-bottom:14px;text-transform:uppercase;letter-spacing:.04em;}
.use-note ul{margin:0;padding-left:18px;color:var(--ink-soft);font-size:14.5px;display:flex;flex-direction:column;gap:8px;}

/* ---------- Key features grid ---------- */
.kf-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;}
.kf-card{background:var(--paper);border:1px solid var(--line);border-radius:16px;padding:28px 22px;}
.kf-card .icon{width:38px;height:38px;border-radius:10px;background:var(--ink);color:#fff;display:flex;align-items:center;justify-content:center;margin-bottom:18px;}
.kf-card h3{font-size:15.5px;margin-bottom:8px;}
.kf-card p{font-size:14px;color:var(--muted);}

/* ---------- Final CTA ---------- */
.cta-band{
  margin:0 24px;border-radius:28px;padding:72px 40px;text-align:center;
  background:linear-gradient(135deg,var(--ink) 0%,#141C2C 55%,#1D2740 100%);
  position:relative;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(600px 240px at 85% 0%, rgba(245,166,35,.18), transparent 60%);
}
.cta-band h2{color:#fff;font-size:clamp(1.7rem,3vw,2.3rem);position:relative;}
.cta-band p{color:#C7CDDA;margin-top:14px;font-size:16px;position:relative;}
.cta-band .hero-cta{justify-content:center;position:relative;margin-top:30px;}

/* ---------- Footer ---------- */
.site-footer{padding:64px 0 40px;}
.footer-top{display:flex;justify-content:space-between;gap:40px;flex-wrap:wrap;padding-bottom:40px;border-bottom:1px solid var(--line);}
.footer-cols{display:flex;gap:64px;flex-wrap:wrap;}
.footer-col h5{font-size:12.5px;text-transform:uppercase;letter-spacing:.05em;color:var(--muted);font-family:'JetBrains Mono',monospace;font-weight:500;margin-bottom:16px;}
.footer-col a{display:block;font-size:14.5px;color:var(--ink-soft);margin-bottom:10px;}
.footer-col a:hover{color:var(--ink);}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;padding-top:28px;flex-wrap:wrap;gap:12px;}
.footer-bottom p{font-size:13px;color:var(--muted);}
.footer-brand{max-width:320px;}
.footer-brand p{font-size:14px;color:var(--muted);margin-top:14px;}
.social-row{display:flex;gap:10px;margin-top:18px;}
.social-icon{
  width:38px;height:38px;border-radius:10px;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;color:var(--ink);
  transition:background .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.social-icon:hover{background:var(--ink);color:#fff;border-color:var(--ink);transform:translateY(-2px);}

/* ---------- Calculator ---------- */
.calc-hero{padding:168px 0 60px;}
.calc-grid{display:grid;grid-template-columns:.95fr 1.05fr;gap:40px;align-items:start;}
.calc-form select{
  width:100%;font-family:'Inter',sans-serif;font-size:15px;padding:13px 14px;
  border-radius:10px;border:1px solid var(--line);background:var(--mist);color:var(--ink);
  appearance:none;-webkit-appearance:none;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%236B7280' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'><polyline points='6 9 12 15 18 9'/></svg>");
  background-repeat:no-repeat;background-position:right 14px center;
}
.calc-form select:focus{border-color:var(--ink);background-color:#fff;outline:none;}
.calc-form .field-row{display:flex;gap:14px;}
.calc-form .field-row .field{flex:1;}
.calc-results{background:var(--paper);border:1px solid var(--line);border-radius:20px;padding:28px;box-shadow:var(--shadow-md);}
.calc-results .result-head{display:flex;justify-content:space-between;align-items:baseline;gap:12px;flex-wrap:wrap;margin-bottom:6px;}
.calc-results .result-head h3{font-size:1.05rem;}
.calc-results .price-summary{font-family:'JetBrains Mono',monospace;font-size:11.5px;color:var(--muted);}
.calc-results .sub-label{
  font-family:'JetBrains Mono',monospace;font-size:11.5px;color:var(--muted);
  text-transform:uppercase;letter-spacing:.05em;margin:22px 0 4px;
}
.result-item{display:flex;justify-content:space-between;align-items:center;padding:12px 0;border-bottom:1px solid var(--line);font-size:14.5px;}
.result-item:last-child{border-bottom:none;}
.result-item.strong{border-top:1px solid var(--ink);margin-top:4px;}
.result-item .label{font-weight:600;color:var(--ink-soft);}
.val{font-family:'JetBrains Mono',monospace;font-size:14.5px;}
.profit{color:var(--demand);font-weight:700;}
.loss{color:var(--supply);font-weight:700;}
.calc-watermark{
  text-align:right;font-family:'JetBrains Mono',monospace;font-size:11px;
  color:var(--muted);margin-top:20px;letter-spacing:.03em;
}
.compare-wrap{border:1px solid var(--line);border-radius:16px;overflow:hidden;margin-top:64px;}
.compare-table{width:100%;border-collapse:collapse;}
.compare-table th,.compare-table td{padding:16px 18px;text-align:left;font-size:14px;border-bottom:1px solid var(--line);}
.compare-table th{background:var(--ink);color:#fff;font-family:'JetBrains Mono',monospace;font-weight:500;font-size:12px;text-transform:uppercase;letter-spacing:.05em;}
.compare-table tr:last-child td{border-bottom:none;}
.compare-table td strong{display:block;margin-bottom:4px;font-family:'Space Grotesk',sans-serif;font-weight:600;font-size:14.5px;}
.compare-table td{color:var(--ink-soft);}

@media (max-width:1024px){
  .calc-grid{grid-template-columns:1fr;}
}
@media (max-width:560px){
  .calc-form .field-row{flex-direction:column;gap:0;}
}

/* ---------- Contact page ---------- */
.contact-hero{padding:168px 0 60px;}
.contact-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:48px;align-items:flex-start;}
.contact-card{background:var(--paper);border:1px solid var(--line);border-radius:20px;padding:36px;box-shadow:var(--shadow-md);}
.contact-card h3{font-size:1.1rem;margin-bottom:8px;}
.contact-list{list-style:none;margin:24px 0 0;padding:0;display:flex;flex-direction:column;gap:16px;}
.contact-list li{display:flex;align-items:center;gap:14px;padding:16px;border:1px solid var(--line);border-radius:14px;transition:border-color .2s var(--ease),transform .2s var(--ease);}
.contact-list li:hover{border-color:var(--ink);transform:translateY(-2px);}
.contact-list .icon{width:40px;height:40px;border-radius:10px;background:var(--mist);display:flex;align-items:center;justify-content:center;flex:none;}
.contact-list .label{font-size:12px;color:var(--muted);font-family:'JetBrains Mono',monospace;}
.contact-list .value{font-size:15px;font-weight:600;}

.form-card{background:var(--paper);border:1px solid var(--line);border-radius:20px;padding:36px;}
.field{margin-bottom:20px;}
.field label{display:block;font-size:13.5px;font-weight:600;margin-bottom:8px;}
.field input,.field textarea{
  width:100%;font-family:'Inter',sans-serif;font-size:15px;padding:13px 14px;
  border-radius:10px;border:1px solid var(--line);background:var(--mist);color:var(--ink);
  transition:border-color .2s var(--ease),background .2s var(--ease);
}
.field input:focus,.field textarea:focus{border-color:var(--ink);background:#fff;outline:none;}
.field textarea{resize:vertical;min-height:130px;}
.field small{display:block;margin-top:6px;color:var(--muted);font-size:12.5px;}

/* ---------- Responsive ---------- */
@media (max-width:1024px){
  .markets-grid{grid-template-columns:repeat(3,1fr);}
  .kf-grid{grid-template-columns:repeat(2,1fr);}
  .hero .wrap{grid-template-columns:1fr;}
  .hero{padding-top:140px;}
  .feature-row{grid-template-columns:1fr;padding:32px;}
  .use-panel.is-active{grid-template-columns:1fr;}
  .contact-grid{grid-template-columns:1fr;}
}
@media (max-width:720px){
  .main-nav{
    position:fixed;top:74px;left:16px;right:16px;
    background:#fff;border:1px solid var(--line);border-radius:16px;
    flex-direction:column;align-items:flex-start;padding:18px;gap:6px;
    box-shadow:var(--shadow-lg);
    opacity:0;visibility:hidden;transform:translateY(-8px);
    transition:opacity .2s var(--ease),transform .2s var(--ease),visibility .2s;
  }
  .main-nav.is-open{opacity:1;visibility:visible;transform:translateY(0);}
  .main-nav a{width:100%;padding:10px 6px;}
  .menu-toggle{display:flex;}
  .header-actions .btn-ghost-nav-hide{display:none;}
  .markets-grid{grid-template-columns:repeat(2,1fr);}
  .kf-grid{grid-template-columns:1fr 1fr;}
  .cta-band{margin:0 12px;padding:52px 22px;}
  .footer-top{flex-direction:column;}
  .footer-cols{gap:32px;}
}
@media (max-width:480px){
  .markets-grid{grid-template-columns:1fr 1fr;}
  .kf-grid{grid-template-columns:1fr;}
  .hero-meta{gap:20px;}
}