:root{ --bg:#0b0f1a; --fg:#e6edf3; --muted:#9fb0c2; --accent:#8edcff; --card:#111826; --line:#2a3444; --bad:#ff6b6b; --warn:#f6c177; --ok:#87e887; }
*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg);color:var(--fg);font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif}
.container{max-width:1060px;margin:0 auto;padding:0 20px}
.nav{position:sticky;top:0;background:rgba(11,15,26,.7);backdrop-filter:saturate(140%) blur(6px);border-bottom:1px solid var(--line);z-index:10}
.nav-inner{display:flex;align-items:center;justify-content:space-between;padding:14px 0}
.brand{display:flex;align-items:center;gap:10px;color:var(--fg);text-decoration:none;font-weight:800}
.logo{width:28px;height:28px;border-radius:6px;border:1px solid var(--line)}
.beta{font-size:12px;color:var(--muted);margin-left:2px}
.links a{color:var(--muted);text-decoration:none;margin-left:18px}
.links a:hover{color:var(--fg)}
.cta{display:inline-block;background:var(--accent);color:#072134;padding:10px 14px;border-radius:12px;font-weight:800;text-decoration:none;cursor:pointer}
.cta.sm{padding:8px 12px}
.ghost{display:inline-block;border:1px solid var(--line);padding:10px 14px;border-radius:12px;color:var(--fg);text-decoration:none}
.hero{display:grid;grid-template-columns:1.2fr .8fr;gap:24px;align-items:stretch;padding:54px 0}
.hero-copy h1{font-size:44px;line-height:1.1;margin:0 0 6px}
.hero-copy p{color:var(--muted);margin:0 0 10px}
.actions{display:flex;gap:10px;margin:16px 0 8px;flex-wrap:wrap}
.ticks{display:flex;gap:12px;flex-wrap:wrap;color:var(--muted);font-size:14px}
.card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:18px}
.hero-card .card-title{font-weight:800;margin-bottom:8px}
.checks{margin:0 0 6px 20px;line-height:1.7}
.mini-note{font-size:12px;color:var(--muted)}
.how{margin:18px 0 8px}
.how h2{margin-top:0}
.steps{margin-left:20px;line-height:1.8}
.tip{margin-top:10px;font-size:14px;color:var(--muted)}
.demo-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:14px;margin-top:10px}
.scope{width:100%;height:auto;border-radius:12px}
.pid{width:100%;border-collapse:collapse;font-size:14px}
.pid th,.pid td{border:1px solid var(--line);padding:8px 10px;text-align:left}
.pid .bad{color:var(--bad);font-weight:800}
.pid .warn{color:var(--warn);font-weight:700}
.pid .ok{color:var(--ok);font-weight:700}
.legend{display:flex;gap:12px;margin-top:8px;align-items:center}
.legend .dot{width:10px;height:10px;border-radius:50%;display:inline-block}
.legend .ok{background:var(--ok)} .legend .warn{background:var(--warn)} .legend .bad{background:var(--bad)}
.contact h2{margin-top:0}
.small{font-size:12px;color:var(--muted);margin-top:8px}
.footer{border-top:1px solid var(--line);padding:16px 0;margin-top:30px}
.foot{display:flex;align-items:center;justify-content:space-between}
.muted{color:var(--muted);font-size:14px}
.form{display:flex;flex-direction:column;gap:10px;margin-top:10px}
.form input, .form textarea{width:100%;padding:10px;border-radius:10px;border:1px solid var(--line);background:#0d1422;color:var(--fg)}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:10px}
@media (max-width: 900px){
  .hero{grid-template-columns:1fr;gap:16px}
  .demo-grid{grid-template-columns:1fr}
}