:root{
  --bg:#0b0b0f;
  --panel:#14161a;
  --panel2:#0f1116;
  --muted:#b6bcc6;
  --text:#f3f4f6;
  --line:rgba(255,255,255,.10);
  --accent:#ff7a1a;
  --radius:16px;
  --max:1100px;
  --shadow: 0 14px 40px rgba(0,0,0,.35);
}
*{box-sizing:border-box}
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial;
  color:var(--text);
  background:
    radial-gradient(900px 600px at 20% 0%, rgba(125,211,252,.10), transparent 45%),
    radial-gradient(800px 560px at 90% 10%, rgba(167,139,250,.12), transparent 45%),
    var(--bg);
  line-height:1.5;
}
a{color:inherit}
.container{max-width:var(--max); margin:0 auto; padding:0 20px;}
.header{
  position:sticky; top:0; z-index:10;
  backdrop-filter: blur(10px);
  background: rgba(11,11,15,.6);
  border-bottom:1px solid rgba(255,255,255,.08);
}
.nav{display:flex; align-items:center; justify-content:space-between; gap:14px; padding:14px 0;}
.brand{display:flex; align-items:center; gap:10px; text-decoration:none; font-weight:800; letter-spacing:.2px;}
.logo{width:14px; height:14px; border-radius:4px; background: linear-gradient(135deg, rgba(125,211,252,1), rgba(167,139,250,1)); box-shadow:0 0 0 3px rgba(125,211,252,.10);}
.nav-links{display:flex; gap:12px; align-items:center; flex-wrap:wrap;}
.nav-links a{color:var(--muted); text-decoration:none; padding:10px 12px; border-radius:12px; border:1px solid transparent;}
.nav-links a:hover{color:var(--text); border-color:rgba(255,255,255,.10); background: rgba(255,255,255,.03);}

.hero{padding:64px 0 28px;}
.hero-grid{display:grid; grid-template-columns: 1.15fr .85fr; gap:22px; align-items:center;}
h1{font-size: clamp(2.1rem, 3.8vw, 3.2rem); margin:0 0 12px; line-height:1.12;}
.lead{font-size:1.08rem; color:var(--muted); max-width:60ch; margin:0 0 12px;}
.lead strong{color:var(--text)}
.actions{display:flex; gap:10px; flex-wrap:wrap; margin-top:14px;}
.btn{
  display:inline-flex; align-items:center; justify-content:center;
  padding:12px 16px; border-radius:14px; text-decoration:none; font-weight:800;
  background: var(--accent); color:#0b0b0f; box-shadow: var(--shadow);
}
.btn:hover{transform: translateY(-1px)}
.btn-ghost{
  background: rgba(255,255,255,.03); color:var(--muted);
  border:1px solid rgba(255,255,255,.10); box-shadow:none;
}
.btn-ghost:hover{color:var(--text)}

.panel{
  border:1px solid rgba(255,255,255,.10);
  background: rgba(255,255,255,.03);
  border-radius: 22px;
  padding:18px;
  box-shadow: var(--shadow);
}
.diagram{
  width:100%; height:auto; display:block;
}

.strip{
  padding:18px 0;
  border-top:1px solid rgba(255,255,255,.08);
  border-bottom:1px solid rgba(255,255,255,.08);
  background: rgba(255,255,255,.02);
}
.strip-inner{display:flex; justify-content:space-between; gap:14px; flex-wrap:wrap; align-items:baseline;}
.strip-title{font-size:1.2rem; font-weight:900;}
.strip-sub{color:var(--muted); font-weight:700;}

.section{padding:42px 0;}
.section.alt{background: rgba(255,255,255,.02); border-top:1px solid rgba(255,255,255,.06); border-bottom:1px solid rgba(255,255,255,.06);}
h2{font-size:1.6rem; margin:0 0 14px;}
.muted{color:var(--muted)}

.cards{display:grid; grid-template-columns: repeat(4, 1fr); gap:14px;}
.card{
  background: rgba(255,255,255,.03);
  border:1px solid rgba(255,255,255,.10);
  border-radius: var(--radius);
  padding:16px;
}
.card h3{margin:0 0 8px}
.two{display:grid; grid-template-columns: 1fr 1fr; gap:14px;}
.bullets{margin:8px 0 0; padding-left:18px; color:var(--muted); display:grid; gap:6px;}
.refs{margin:0; padding-left:18px; color:var(--muted); display:grid; gap:8px;}

.footer{
  padding:28px 0 18px;
  border-top:1px solid rgba(255,255,255,.08);
  background: rgba(0,0,0,.20);
}
.footer-grid{display:grid; grid-template-columns: 1.4fr 1fr 1fr; gap:16px;}
.footer-title{font-weight:900; margin-bottom:8px;}
.footer-list{list-style:none; padding:0; margin:0; display:grid; gap:6px; color:var(--muted);}
.footer-list a{color:var(--muted); text-decoration:none}
.footer-list a:hover{color:var(--text)}
.footer-bottom{margin-top:16px; padding-top:14px; border-top:1px solid rgba(255,255,255,.08); display:flex; justify-content:space-between; gap:10px; flex-wrap:wrap;}
.small{font-size:.92rem}

@media (max-width: 980px){
  .hero-grid{grid-template-columns: 1fr;}
  .cards{grid-template-columns: 1fr;}
  .two{grid-template-columns: 1fr;}
  .footer-grid{grid-template-columns: 1fr;}
}