:root{
  --bg:#0b1020;
  --bg-alt:#0f1628;
  --surface:#131c33;
  --border:rgba(255,255,255,.09);
  --text:#e8ecf6;
  --muted:#9aa6c2;
  --accent:#f5b931;
  --accent-soft:rgba(245,185,49,.14);
  --accent-2:#5ad1c8;
  --radius:16px;
  --maxw:1120px;
  --shadow:0 20px 50px rgba(0,0,0,.35);
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Inter",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
img,svg{max-width:100%}
a{color:inherit}

.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}

.skip-link{
  position:absolute;left:-9999px;top:0;background:var(--accent);color:#1a1200;
  padding:10px 16px;border-radius:0 0 8px 0;z-index:100;font-weight:600;
}
.skip-link:focus{left:0}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(11,16,32,.82);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--border);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:68px}
.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;font-weight:700;letter-spacing:-.01em}
.brand-mark{width:28px;height:28px;color:var(--accent);flex:none}
.brand-text{font-size:1.05rem}
.brand-text strong{font-weight:800;color:var(--accent);margin-left:4px}

.nav{display:flex;align-items:center;gap:28px}
.nav a{text-decoration:none;color:var(--muted);font-size:.94rem;font-weight:500;transition:color .18s}
.nav a:hover,.nav a:focus-visible{color:var(--text)}
.nav .btn{color:#1a1200}

.nav-toggle{
  display:none;background:none;border:1px solid var(--border);border-radius:10px;
  width:42px;height:38px;cursor:pointer;padding:9px 10px;
}
.nav-toggle span{display:block;height:2px;background:var(--text);border-radius:2px;margin:3px 0;transition:transform .2s,opacity .2s}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(5px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-5px) rotate(-45deg)}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--accent);color:#1a1200;
  border:1px solid transparent;border-radius:999px;
  padding:12px 22px;font-weight:600;font-size:.95rem;
  text-decoration:none;cursor:pointer;
  transition:transform .15s,box-shadow .15s,background .15s;
}
.btn:hover{transform:translateY(-1px);box-shadow:0 10px 24px rgba(245,185,49,.25)}
.btn-sm{padding:9px 18px;font-size:.9rem}
.btn-ghost{background:transparent;color:var(--text);border-color:var(--border)}
.btn-ghost:hover{background:rgba(255,255,255,.05);box-shadow:none}
.btn-arrow{width:16px;height:16px;flex:none}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;padding:100px 0 56px}
.hero-glow{
  position:absolute;inset:-30% -10% auto -10%;height:620px;pointer-events:none;
  background:
    radial-gradient(42% 60% at 22% 40%,rgba(245,185,49,.20),transparent 70%),
    radial-gradient(38% 55% at 76% 28%,rgba(90,209,200,.16),transparent 70%);
  filter:blur(6px);
}
.hero .container{position:relative}
.hero-inner{max-width:880px}
.eyebrow{
  text-transform:uppercase;letter-spacing:.14em;font-size:.76rem;font-weight:700;
  color:var(--accent);margin:0 0 14px
}
.hero h1{
  font-size:clamp(2.3rem,5.4vw,3.9rem);line-height:1.08;letter-spacing:-.03em;
  font-weight:800;margin:0 0 22px
}
.lede{font-size:clamp(1.03rem,1.6vw,1.2rem);color:var(--muted);margin:0 0 32px;max-width:62ch}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:44px}

.hero-stats{display:flex;flex-wrap:wrap;gap:40px;margin:0;padding-top:26px;border-top:1px solid var(--border)}
.hero-stats dt{font-size:.74rem;text-transform:uppercase;letter-spacing:.12em;color:var(--muted);font-weight:600}
.hero-stats dd{margin:4px 0 0;font-weight:600;font-size:1.02rem}

/* ---------- Sections ---------- */
.section{padding:88px 0}
.section-alt{background:var(--bg-alt);border-block:1px solid var(--border)}
.section h2{
  font-size:clamp(1.8rem,3.4vw,2.5rem);letter-spacing:-.025em;font-weight:800;margin:0 0 16px
}
.section-lede{color:var(--muted);max-width:60ch;margin:0 0 48px;font-size:1.03rem}

/* ---------- Cards ---------- */
.grid{display:grid;gap:24px}
.grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
.card{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  padding:30px 28px;transition:transform .2s,border-color .2s,box-shadow .2s;
}
.card:hover{transform:translateY(-4px);border-color:rgba(245,185,49,.4);box-shadow:var(--shadow)}
.card-icon{
  width:46px;height:46px;border-radius:12px;background:var(--accent-soft);color:var(--accent);
  display:grid;place-items:center;margin-bottom:18px
}
.card-icon svg{width:24px;height:24px}
.card h3{margin:0 0 10px;font-size:1.22rem;letter-spacing:-.015em}
.card p{margin:0 0 20px;color:var(--muted);font-size:.97rem}

.tags{display:flex;flex-wrap:wrap;gap:8px;list-style:none;margin:0;padding:0}
.tags li{
  font-size:.78rem;font-weight:600;color:var(--accent-2);
  background:rgba(90,209,200,.1);border:1px solid rgba(90,209,200,.22);
  padding:4px 11px;border-radius:999px
}

/* ---------- Steps ---------- */
.steps{list-style:none;margin:0;padding:0;display:grid;gap:24px;grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}
.steps li{border-top:2px solid var(--accent);padding-top:20px}
.step-num{font-size:.8rem;font-weight:800;letter-spacing:.1em;color:var(--accent)}
.steps h3{margin:8px 0 8px;font-size:1.12rem}
.steps p{margin:0;color:var(--muted);font-size:.95rem}

/* ---------- Feature ---------- */
.feature{
  display:grid;grid-template-columns:minmax(0,1.55fr) minmax(0,1fr);gap:44px;align-items:start;
  background:var(--surface);border:1px solid var(--border);border-radius:24px;
  padding:44px;margin-top:8px
}
.feature-body{max-width:68ch}
.feature h3{font-size:clamp(1.5rem,2.6vw,2rem);margin:0 0 14px;letter-spacing:-.02em}
.feature p{color:var(--muted);margin:0 0 20px;font-size:1rem}
.feature p:last-of-type{margin-bottom:26px}

.feature-stack{
  background:rgba(255,255,255,.03);border:1px solid var(--border);
  border-radius:16px;padding:24px 26px
}
.feature-stack h4{
  margin:0 0 14px;font-size:.76rem;text-transform:uppercase;letter-spacing:.14em;
  color:var(--accent)
}
.feature-stack ul{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.feature-stack li{
  color:var(--muted);font-size:.92rem;padding-left:18px;position:relative;line-height:1.45
}
.feature-stack li::before{
  content:"";position:absolute;left:0;top:.5em;width:7px;height:7px;
  background:var(--accent-2);border-radius:2px;transform:rotate(45deg)
}

/* ---------- Diagrams ---------- */
.diagrams{display:grid;gap:28px;margin-top:28px}
.diagram{margin:0}
.diagram a{
  display:block;border:1px solid var(--border);border-radius:16px;overflow:hidden;
  background:#fff;transition:border-color .2s,box-shadow .2s,transform .2s
}
.diagram a:hover,.diagram a:focus-visible{
  border-color:rgba(245,185,49,.55);box-shadow:var(--shadow);transform:translateY(-3px)
}
.diagram img{display:block;width:100%;height:auto}
.diagram figcaption{
  margin-top:14px;color:var(--muted);font-size:.93rem;line-height:1.6
}
.diagram figcaption strong{color:var(--text)}
.zoom-hint{
  display:inline-block;margin-left:8px;font-size:.78rem;font-weight:600;
  color:var(--accent-2);white-space:nowrap
}
.zoom-hint::before{content:"⤢ "}

/* ---------- About ---------- */
.about-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:start}
.about-grid p{color:var(--muted)}
.values{list-style:none;margin:0;padding:0;display:grid;gap:14px}
.values li{
  background:var(--surface);border:1px solid var(--border);border-radius:12px;
  padding:16px 18px;color:var(--muted);font-size:.95rem
}
.values strong{color:var(--text);display:block;margin-bottom:2px}

/* ---------- Contact ---------- */
.contact-inner{max-width:820px}
.contact-form{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{display:flex;flex-direction:column;gap:7px}
.field-full{grid-column:1 / -1}
label{font-size:.86rem;font-weight:600;color:var(--muted)}
.optional{font-weight:400;opacity:.7}
input,select,textarea{
  font:inherit;font-size:.96rem;color:var(--text);
  background:var(--surface);border:1px solid var(--border);border-radius:10px;
  padding:12px 14px;transition:border-color .18s,box-shadow .18s;
}
input:focus,select:focus,textarea:focus{
  outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)
}
textarea{resize:vertical}
.form-actions{flex-direction:row;align-items:center;gap:18px;flex-wrap:wrap}
.form-note{margin:0;font-size:.9rem;color:var(--accent-2)}
.form-note.error{color:#ff8e8e}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
button[disabled]{opacity:.6;cursor:progress;transform:none;box-shadow:none}

/* ---------- Footer ---------- */
.site-footer{border-top:1px solid var(--border);background:var(--bg-alt);padding:48px 0 24px}
.footer-inner{display:flex;flex-wrap:wrap;justify-content:space-between;gap:28px}
.footer-tag{color:var(--muted);margin:12px 0 0;font-size:.93rem}
.footer-nav{display:flex;flex-wrap:wrap;gap:22px;align-items:flex-start}
.footer-nav a{color:var(--muted);text-decoration:none;font-size:.93rem}
.footer-nav a:hover{color:var(--text)}
.footer-bottom{margin-top:36px;padding-top:20px;border-top:1px solid var(--border)}
.footer-bottom p{margin:0;color:var(--muted);font-size:.86rem}

/* ---------- Responsive ---------- */
@media (max-width:880px){
  .feature{grid-template-columns:1fr;padding:32px;gap:28px}
  .about-grid{grid-template-columns:1fr;gap:32px}
  .grid-3{grid-template-columns:1fr}
}
@media (max-width:720px){
  .nav-toggle{display:block}
  .nav{
    position:absolute;top:68px;left:0;right:0;
    flex-direction:column;align-items:flex-start;gap:4px;
    background:var(--bg-alt);border-bottom:1px solid var(--border);
    padding:14px 24px 22px;display:none;
  }
  .nav.open{display:flex}
  .nav a{padding:10px 0;width:100%}
  .nav .btn{margin-top:10px;width:auto}
  .hero{padding:72px 0 64px}
  .section{padding:64px 0}
  .hero-stats{gap:26px}
  .contact-form{grid-template-columns:1fr}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *{animation:none!important;transition:none!important}
}