/* Arns shared shell */
:root{--arns-shell-bg:rgba(255,255,255,.84);--arns-shell-border:#e2e8f0;--arns-shell-ink:#0f172a;--arns-shell-muted:#64748b;--arns-shell-accent:#0ea5e9;--arns-shell-accent2:#10b981}
body.arns-shell-enabled{padding-top:86px}
.arns-shell-header{position:fixed;top:0;left:0;right:0;z-index:1000;background:var(--arns-shell-bg);backdrop-filter:saturate(160%) blur(12px);border-bottom:1px solid var(--arns-shell-border)}
.arns-shell-wrap{max-width:1200px;margin:0 auto;padding:0 20px}
.arns-shell-nav{height:72px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.arns-shell-brand{display:flex;align-items:center;gap:10px;color:var(--arns-shell-ink);font-weight:800;text-decoration:none;white-space:nowrap}
.arns-shell-dot{width:10px;height:10px;border-radius:999px;background:linear-gradient(135deg,var(--arns-shell-accent),var(--arns-shell-accent2));box-shadow:0 0 0 4px rgba(14,165,233,.12)}
.arns-shell-links{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.arns-shell-links a{color:var(--arns-shell-muted);text-decoration:none;font-weight:600;padding:10px 12px;border-radius:12px;transition:.18s ease}
.arns-shell-links a:hover,.arns-shell-links a.is-active{color:var(--arns-shell-ink);background:#f8fafc}
.arns-shell-cta{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.arns-shell-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:12px;padding:10px 14px;text-decoration:none;font-weight:700;border:1px solid var(--arns-shell-border);background:#fff;color:var(--arns-shell-ink);transition:.18s ease;box-shadow:0 1px 2px rgba(15,23,42,.04)}
.arns-shell-btn:hover{transform:translateY(-1px);box-shadow:0 6px 18px rgba(15,23,42,.08)}
.arns-shell-btn.primary{background:linear-gradient(135deg,#0f172a,#1e293b);color:#fff;border-color:#0f172a}
.arns-shell-btn.soft{background:#f8fafc}
.arns-shell-footer{margin-top:56px;border-top:1px solid #e2e8f0;background:#fff}
.arns-shell-footer .grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:22px;padding:28px 0}
.arns-shell-footer h4{margin:0 0 10px;color:#0f172a;font-size:14px}
.arns-shell-footer p,.arns-shell-footer a,.arns-shell-footer li{color:#64748b;font-size:14px;line-height:1.45;text-decoration:none}
.arns-shell-footer a:hover{color:#0f172a}
.arns-shell-footer ul{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.arns-shell-footer .bottom{display:flex;justify-content:space-between;gap:12px;align-items:center;border-top:1px solid #e2e8f0;padding:14px 0 22px;color:#64748b;font-size:13px;flex-wrap:wrap}
.arns-page-fade{opacity:0;transform:translateY(8px);transition:opacity .25s ease,transform .25s ease}
.arns-page-fade.arns-ready{opacity:1;transform:none}
@media (max-width:980px){.arns-shell-nav{height:auto;padding:12px 0;align-items:flex-start;flex-direction:column}.arns-shell-links,.arns-shell-cta{width:100%}.arns-shell-cta .arns-shell-btn{flex:1 1 auto}.arns-shell-footer .grid{grid-template-columns:1fr}}