:root{
  --bg:#0b0f12;--card:#11161a;--text:#e6eef6;--muted:#9fb0bf;--accent:#2bb673;--accent-2:#5f89ff;--border:#1d252b
}
*{box-sizing:border-box}
html,body{height:100%}
body{margin:0;font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Cantarell,'Helvetica Neue',sans-serif;background:radial-gradient(80% 80% at 50% 0%,#0e1420 0%,var(--bg) 60%),var(--bg);color:var(--text)}
.page{min-height:100%;display:grid;place-items:center;padding:24px}
.card{width:min(920px,100%);background:linear-gradient(180deg,rgba(255,255,255,.02),rgba(255,255,255,0));border:1px solid var(--border);border-radius:16px;box-shadow:0 10px 30px rgba(0,0,0,.25);overflow:hidden}
.header{display:flex;gap:12px;align-items:center;padding:18px 20px;border-bottom:1px solid var(--border);background:linear-gradient(180deg,rgba(255,255,255,.03),rgba(255,255,255,0))}
.logo{font-size:28px;filter:drop-shadow(0 2px 6px rgba(0,0,0,.4))}
.header h1{margin:0;font-size:20px;font-weight:800;letter-spacing:.4px}
.tagline{margin:2px 0 0 0;color:var(--muted);font-weight:400}
.content{padding:22px}
.lead{margin:0 0 16px 0;color:#d7e6f3}
.actions{display:flex;flex-wrap:wrap;gap:12px;margin:10px 0 6px}
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 16px;border-radius:10px;text-decoration:none;border:1px solid var(--border);color:var(--text);transition:transform .06s ease,background .2s ease,border .2s ease}
.btn:hover{transform:translateY(-1px)}
.btn.primary{background:linear-gradient(180deg,var(--accent),#1ea764);border-color:#10965a;color:#08130d;font-weight:700}
.btn.subtle{background:#131a20}
.meta{display:flex;gap:16px;margin:8px 0 18px 0;color:var(--muted);font-size:14px}
.grid{display:grid;grid-template-columns:1.2fr .8fr;gap:16px}
@media (max-width:860px){.grid{grid-template-columns:1fr}}
.panel{border:1px solid var(--border);border-radius:12px;padding:16px;background:#0e1317}
.panel h3{margin:0 0 12px 0;font-size:16px}
.panel ol{margin:0 0 8px 18px}
.panel .note{margin:10px 0 0;color:#b7c7d6;font-size:14px}
.note.error{color:#ffb4b4}
.hidden{display:none}
code{background:#10161b;border:1px solid var(--border);padding:2px 6px;border-radius:6px;color:#d9e6f2}
.qr{display:flex;flex-direction:column;align-items:center;justify-content:center}
.qrcode{padding:10px;border-radius:8px;background:#fff}
.muted{color:var(--muted)}
.small{font-size:12px}
.footer{border-top:1px solid var(--border);padding:14px 20px;text-align:center;background:linear-gradient(0deg,rgba(255,255,255,.02),rgba(255,255,255,0))}
.footer a{color:var(--accent-2);text-decoration:none}
.footer a:hover{text-decoration:underline}