/* Full-screen loading overlay + percent (login & heavy actions) */
.erp-loading-overlay {
  position: fixed;
  inset: 0;
  z-index: 20000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.25rem;
  background: rgba(15, 23, 42, 0.55);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.2s ease, visibility 0.2s ease;
}
.erp-loading-overlay.is-open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}
body.erp-loading-active {
  overflow: hidden;
}
.erp-loading-card {
  width: min(100%, 280px);
  padding: 1.35rem 1.25rem 1.2rem;
  border-radius: 1rem;
  background: #fff;
  box-shadow: 0 20px 50px rgba(15, 23, 42, 0.28);
  text-align: center;
}
.erp-loading-spinner {
  width: 2.5rem;
  height: 2.5rem;
  margin: 0 auto 0.85rem;
  border: 3px solid #e2e8f0;
  border-top-color: #2563eb;
  border-radius: 50%;
  animation: erp-loading-spin 0.7s linear infinite;
}
.erp-loading-percent {
  font-size: 1.65rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: #0f172a;
  line-height: 1.1;
  font-variant-numeric: tabular-nums;
}
.erp-loading-text {
  margin-top: 0.35rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: #64748b;
}
.erp-loading-track {
  margin-top: 0.85rem;
  height: 6px;
  border-radius: 999px;
  background: #e2e8f0;
  overflow: hidden;
}
.erp-loading-fill {
  height: 100%;
  width: 0%;
  border-radius: inherit;
  background: linear-gradient(90deg, #3b82f6, #2563eb);
  transition: width 0.15s ease-out;
}
@keyframes erp-loading-spin {
  to { transform: rotate(360deg); }
}

/* Button lock (prevent multi-click) — .btn.is-loading already in erp-ui.css */
.auth-btn.is-loading,
button.is-loading:not(.btn) {
  position: relative;
  pointer-events: none !important;
  opacity: 0.85;
}
.auth-btn.is-loading::after,
button.is-loading:not(.btn)::after {
  content: "";
  width: 1em;
  height: 1em;
  margin-left: 0.45em;
  border: 2px solid currentColor;
  border-right-color: transparent;
  border-radius: 50%;
  display: inline-block;
  vertical-align: -0.12em;
  animation: erp-loading-spin 0.65s linear infinite;
}

body.auth-page .erp-loading-card {
  border: 1px solid rgba(148, 163, 184, 0.35);
}