#preloader{position:fixed;inset:0;background:#f5f5f5;z-index:99999;display:flex;align-items:center;justify-content:center;transition:opacity 0.6s ease,visibility 0.6s ease}.iron-loader{width:80px;height:80px;border-radius:50%;border:8px solid #9ca3af;border-top-color:#4b5563;box-shadow:inset 0 0 6px rgba(0,0,0,0.4),0 0 8px rgba(0,0,0,0.3);animation:iron-spin 1.6s linear infinite}@keyframes iron-spin{100%{transform:rotate(360deg)}}