:root{--npb-header-h:60px;color-scheme:dark}
body{margin:0;background:linear-gradient(180deg,#0b0f14,#0c1118);color:#e6eefb;
  font-family:Inter,system-ui,Segoe UI,Roboto,Helvetica,Arial,sans-serif}
.npb-wrap{max-width:1100px;margin:0 auto;padding:0 20px}
.npb-hero{padding:calc(var(--npb-header-h) + 20px) 0 20px}
.npb-card{background:#0f1727;border:1px solid #253246;border-radius:14px;padding:18px;color:#e5edff;box-shadow:0 8px 22px rgba(0,0,0,.35)}
.npb-muted{color:#8aa0c6}
.npb-grid{display:grid;gap:16px}
.npb-grid-3{grid-template-columns:repeat(3,1fr)}
.npb-btn{display:inline-block;padding:10px 16px;border-radius:10px;background:#2b59ff;color:#fff;text-decoration:none}
.npb-btn:hover{filter:brightness(1.08)}
.npb-article{line-height:1.7;color:#cfdaff;padding-top:calc(var(--npb-header-h) + 10px)}
.npb-article h1{margin:8px 0 10px}
.npb-footer{border-top:1px solid #253246;margin-top:26px;padding:22px 0;color:#8aa0c6}
@media(max-width:900px){.npb-grid-3{grid-template-columns:1fr}}