:root{
  --bg:#0b0b0c;
  --card:#0f1113;
  --muted:#9aa0a6;
  --accent:#8b63ff;
  --text:#e6eef3;
  --glass:rgba(255,255,255,0.03);
  --max-width:980px;
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family:Inter, ui-sans-serif, system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial;
  background:linear-gradient(180deg,var(--bg),#070708 80%);
  color:var(--text);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
.container{max-width:var(--max-width);margin:0 auto;padding:24px}
.site-header{border-bottom:1px solid rgba(255,255,255,0.03);background:transparent}
.header-inner{display:flex;align-items:center;justify-content:space-between}
.brand{display:flex;gap:12px;align-items:center}
.logo{
  /* responsive logo size: min 40px, scales with viewport, max 72px */
  width: clamp(40px, 6vw, 72px);
  height: auto;
  display: block;
  object-fit:contain;
}
.logo.white-bg{
  background:#fff;
  padding:0.45rem; /* scales with font-size */
  border-radius:12px;
  border:1px solid rgba(0,0,0,0.06);
  box-shadow:0 2px 8px rgba(0,0,0,0.08);
}
.site-title{margin:0;font-size:20px;letter-spacing:0.04em}
.site-sub{margin:0;color:var(--muted);font-size:13px}
.nav{display:flex;gap:14px}
.nav-link{color:var(--muted);text-decoration:none;font-size:14px;padding:6px 8px;border-radius:6px}
.nav-link:hover{color:var(--text);background:var(--glass)}
.hero{padding:48px 24px 36px}
.hero h2{margin:0 0 8px;font-size:28px}
.lead{color:var(--muted);font-size:16px;margin-bottom:12px}
.actions{margin-top:18px;display:flex;gap:12px}
.btn{display:inline-block;padding:10px 14px;border-radius:8px;background:transparent;border:1px solid rgba(255,255,255,0.06);color:var(--text);text-decoration:none;font-weight:600}
.btn.primary{background:linear-gradient(90deg,var(--accent),#5e4bff);color:#f6f3ff;border:none}
.info{background:rgba(255,255,255,0.02);padding:18px;border-radius:10px;margin:18px 0}
.info h3{margin-top:0}
.cta{padding:24px;border-radius:10px;background:linear-gradient(180deg, rgba(255,255,255,0.02), transparent);display:flex;gap:18px;align-items:center;justify-content:space-between}
.site-footer{border-top:1px solid rgba(255,255,255,0.03);padding:18px 0;margin-top:34px;color:var(--muted)}
.footer-inner{display:flex;justify-content:space-between;align-items:center}
.footer-links a{color:var(--muted);text-decoration:none}
@media (max-width:720px){
  .header-inner{flex-direction:column;align-items:flex-start;gap:12px}
  .cta{flex-direction:column;align-items:flex-start}
  .footer-inner{flex-direction:column;align-items:flex-start;gap:8px}
}

/* small accessibility tweaks */
a:focus{outline:2px solid rgba(139,99,255,0.18);outline-offset:2px}