#toolNavigationOverlay{position:fixed;inset:0;z-index:2147483646;display:flex;align-items:center;justify-content:center;background:rgba(15,23,42,.18);backdrop-filter:blur(2px);opacity:0;visibility:hidden;pointer-events:none;transition:opacity .12s ease,visibility .12s ease}
#toolNavigationOverlay.is-visible{opacity:1;visibility:visible;pointer-events:auto}
.tool-nav-card{display:flex;align-items:center;gap:14px;min-width:230px;padding:18px 22px;border:1px solid rgba(148,163,184,.35);border-radius:16px;background:rgba(255,255,255,.96);box-shadow:0 18px 60px rgba(15,23,42,.2);color:#0f172a}
.tool-nav-card strong,.tool-nav-card small{display:block}.tool-nav-card strong{font-size:15px}.tool-nav-card small{margin-top:3px;color:#64748b;font-size:12px}
.tool-nav-spinner{width:24px;height:24px;border:3px solid #dbeafe;border-top-color:#2563eb;border-radius:50%;animation:toolNavSpin .7s linear infinite}
@keyframes toolNavSpin{to{transform:rotate(360deg)}}