:root{
  --bg:#0B1220;
  --panel:#0F1A30;
  --card:#0E1930;
  --muted:#A9B6D0;
  --text:#EAF0FF;
  --border:rgba(255,255,255,.10);
  --shadow: 0 18px 60px rgba(0,0,0,.35);
  --accent:#4C8DFF;
  --accent2:#32D6A0;
  --white:#fff;
  --radius:16px;
  --radius-sm:12px;
  --container:1120px;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, "Noto Sans", "Liberation Sans", sans-serif;
  line-height:1.5;
  color:var(--text);
  background:
    radial-gradient(900px 600px at 15% 0%, rgba(76,141,255,.18), transparent 60%),
    radial-gradient(900px 600px at 85% 20%, rgba(50,214,160,.12), transparent 60%),
    linear-gradient(180deg, #060A14 0%, #0B1220 40%, #070B14 100%);
}

a{color:inherit}

.container{max-width:var(--container); margin:0 auto; padding:0 20px}
.section{padding:72px 0}
.section-alt{background:rgba(255,255,255,.03); border-top:1px solid var(--border); border-bottom:1px solid var(--border)}
.section-head{margin-bottom:22px}
.section-head h2{margin:0 0 8px; font-size:clamp(22px, 2.4vw, 34px); letter-spacing:-.02em}
.section-head p{margin:0; color:var(--muted); max-width:70ch}

.skip-link{
  position:absolute; left:-999px; top:10px;
  background:var(--white); color:#000; padding:10px 12px; border-radius:10px;
}
.skip-link:focus{left:10px; z-index:999}

.site-header{
  position:sticky; top:0; z-index:50;
  backdrop-filter:saturate(140%) blur(12px);
  background:rgba(11,18,32,.65);
  border-bottom:1px solid var(--border);
}
.header-inner{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}
.brand-logo{width:32px; height:32px}
.brand-name{text-transform:lowercase; letter-spacing:.02em; font-weight:700}

.nav{display:none; gap:16px; align-items:center}
.nav-link{
  text-decoration:none; color:rgba(234,240,255,.86);
  font-weight:600; font-size:14px; padding:8px 10px; border-radius:10px;
}
.nav-link:hover{background:rgba(255,255,255,.06)}

.header-actions{display:flex; align-items:center; gap:10px}

.btn{
  display:inline-flex; align-items:center; justify-content:center;
  border:1px solid var(--border);
  border-radius:12px;
  padding:10px 14px;
  text-decoration:none;
  font-weight:700;
  font-size:14px;
  cursor:pointer;
  background:rgba(255,255,255,.04);
  transition: transform .12s ease, background .12s ease, border-color .12s ease;
}
.btn:hover{background:rgba(255,255,255,.07); transform:translateY(-1px)}
.btn:active{transform:translateY(0)}
.btn-primary{background:linear-gradient(180deg, rgba(76,141,255,1), rgba(53,116,230,1)); border-color:rgba(76,141,255,.55)}
.btn-primary:hover{background:linear-gradient(180deg, rgba(93,154,255,1), rgba(53,116,230,1))}
.btn-secondary{background:linear-gradient(180deg, rgba(50,214,160,1), rgba(30,168,124,1)); border-color:rgba(50,214,160,.5); color:#081012}
.btn-secondary:hover{background:linear-gradient(180deg, rgba(72,230,178,1), rgba(30,168,124,1))}
.btn-ghost{background:transparent}

.hero{padding:70px 0 44px}
.hero-grid{display:grid; gap:22px; align-items:center}
.badge{
  display:inline-flex; gap:8px; align-items:center;
  padding:6px 10px; border:1px solid var(--border);
  border-radius:999px;
  background:rgba(255,255,255,.04);
  color:rgba(234,240,255,.85);
  font-weight:700;
  font-size:12px;
  width:fit-content;
}
.hero-title{margin:12px 0 10px; font-size:clamp(30px, 4.2vw, 54px); line-height:1.05; letter-spacing:-.03em}
.hero-subtitle{margin:0; color:var(--muted); font-size:clamp(16px, 1.7vw, 18px); max-width:64ch}
.hero-ctas{display:flex; flex-wrap:wrap; gap:10px; margin-top:18px}
.hero-note{margin-top:14px; color:rgba(234,240,255,.72); font-size:13px}

.hero-card{
  border:1px solid var(--border);
  background:linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.02));
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  padding:16px;
}
.mock{border-radius:14px; overflow:hidden; border:1px solid rgba(255,255,255,.10); background:rgba(0,0,0,.2)}
.mock-top{display:flex; gap:6px; padding:10px; background:rgba(255,255,255,.05); border-bottom:1px solid rgba(255,255,255,.08)}
.dot{width:10px; height:10px; border-radius:99px; background:rgba(255,255,255,.18)}
.mock-body{padding:16px}
.mock-title{font-weight:900; letter-spacing:-.02em}
.mock-url{margin-top:6px; color:rgba(234,240,255,.60); font-size:12px}
.mock-lines{margin-top:14px; display:grid; gap:10px}
.mock-lines span{height:10px; border-radius:99px; background:rgba(255,255,255,.10)}
.mock-lines span:nth-child(2){width:90%}
.mock-lines span:nth-child(3){width:80%}
.mock-lines span:nth-child(4){width:88%}
.mock-lines span:nth-child(5){width:65%}
.mock-chip{
  margin-top:16px;
  display:inline-flex;
  padding:6px 10px;
  border-radius:999px;
  border:1px solid rgba(255,255,255,.10);
  background:rgba(76,141,255,.12);
  color:rgba(234,240,255,.85);
  font-weight:800;
  font-size:12px;
}

.cards{display:grid; gap:14px}
.card{
  border:1px solid var(--border);
  background:rgba(255,255,255,.04);
  border-radius:var(--radius);
  padding:16px;
}
.card h3{margin:0 0 6px; letter-spacing:-.01em}
.card p{margin:0; color:var(--muted)}

.grid-2{display:grid; gap:14px}
.listbox{
  border:1px solid var(--border);
  background:rgba(255,255,255,.04);
  border-radius:var(--radius);
  padding:16px;
}
.listbox h3{margin:0 0 8px}
.list{margin:0; padding-left:18px; color:rgba(234,240,255,.86)}
.list li{margin:8px 0; color:var(--muted)}

.download{display:grid; gap:14px}
.download-card{
  border:1px solid var(--border);
  background:linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.03));
  border-radius:var(--radius);
  padding:18px;
}
.download-card h3{margin:0 0 6px}
.download-card p{margin:0 0 12px; color:var(--muted)}
.muted{color:var(--muted)}
.checksum{margin-top:12px}
.checksum-label{font-size:12px; color:rgba(234,240,255,.75); margin-bottom:6px}
.checksum-code{
  display:block;
  padding:10px 12px;
  border-radius:12px;
  border:1px solid rgba(255,255,255,.10);
  background:rgba(0,0,0,.25);
  overflow:auto;
}

.docs-card{
  display:flex; align-items:center; justify-content:space-between; gap:14px;
  border:1px solid var(--border);
  background:rgba(255,255,255,.04);
  border-radius:var(--radius);
  padding:18px;
}
.docs-kicker{
  font-weight:900; font-size:12px; letter-spacing:.12em; text-transform:uppercase;
  color:rgba(234,240,255,.65);
}

.faq{display:grid; gap:10px}
.faq-item{
  border:1px solid var(--border);
  border-radius:var(--radius);
  background:rgba(255,255,255,.04);
  padding:12px 14px;
}
.faq-item summary{cursor:pointer; font-weight:800; letter-spacing:-.01em}
.faq-body{margin-top:8px; color:var(--muted)}

.support-card{
  border:1px solid var(--border);
  background:rgba(255,255,255,.04);
  border-radius:var(--radius);
  padding:18px;
}
.support-row{display:flex; justify-content:space-between; align-items:center; gap:14px; padding:10px 0}
.support-row + .support-row{border-top:1px solid rgba(255,255,255,.08)}
.support-label{color:rgba(234,240,255,.70); font-weight:800; font-size:13px}
.support-link{font-weight:900; text-decoration:none}
.support-links{display:flex; align-items:center; gap:10px}
.support-links a{color:rgba(234,240,255,.90); text-decoration:none; font-weight:800}
.support-links a:hover{text-decoration:underline}
.sep{color:rgba(234,240,255,.45)}

.site-footer{border-top:1px solid var(--border); padding:22px 0; background:rgba(0,0,0,.18)}
.footer-inner{display:flex; justify-content:space-between; align-items:center; gap:14px}
.footer-left{display:flex; align-items:center; gap:10px}
.footer-logo{width:26px; height:26px; opacity:.95}
.footer-name{font-weight:900}
.footer-muted{color:rgba(234,240,255,.62); font-size:12px}

/* Responsive */
@media (min-width: 880px){
  .nav{display:flex}
  .hero-grid{grid-template-columns: 1.15fr .85fr}
  .cards{grid-template-columns: repeat(3, 1fr)}
  .grid-2{grid-template-columns: repeat(2, 1fr)}
  .download{grid-template-columns: repeat(2, 1fr)}
}

@media (max-width: 520px){
  .docs-card{flex-direction:column; align-items:flex-start}
  .support-row{flex-direction:column; align-items:flex-start}
}