.loading-overlay{position:fixed;inset:0;display:none;align-items:center;justify-content:center;z-index:2000}
.loading-backdrop{position:absolute;inset:0;background:rgba(0,0,0,.45);backdrop-filter:blur(3px)}
.loading-box{position:relative;z-index:1;min-width:220px;padding:16px 18px;border-radius:14px;
  background:rgba(20,22,28,.9);border:1px solid rgba(255,255,255,.08);color:#e5e7eb;text-align:center}
.spinner{width:48px;height:48px;margin:2px auto 8px;border-radius:50%;
  border:4px solid rgba(255,255,255,.25);border-top-color:#3b82f6;animation:spin 1s linear infinite}
.loading-text{font-size:.95rem;opacity:.95}
@keyframes spin{to{transform:rotate(360deg)}}
body.loading-open{overflow:hidden}
#loadingOverlay { z-index: 1040 !important; }