html[data-page-loading]::before {
  content: "";
  position: fixed;
  z-index: 12000;
  inset: 0 0 auto;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--theme-link, #4d58a4), transparent);
  background-size: 45% 100%;
  background-repeat: no-repeat;
  animation: brn-loading-progress 1.3s ease-in-out infinite;
  pointer-events: none;
}

html[data-page-loading="initial"]::after,
.brn-page-loading__spinner {
  box-sizing: border-box;
  width: 34px;
  height: 34px;
  border: 3px solid var(--theme-border, #d9deed);
  border-top-color: var(--theme-link, #4d58a4);
  border-radius: 50%;
  animation: brn-loading-spin .8s linear infinite;
}

html[data-page-loading="initial"]::after {
  content: "";
  position: fixed;
  inset: 18px auto auto 50%;
  margin-left: -17px;
  z-index: 12000;
  background-color: var(--theme-surface, #fff);
  pointer-events: none;
}

.brn-page-loading[hidden],
.brn-page-loading [hidden] { display: none !important; }

.brn-page-loading {
  position: fixed;
  z-index: 11999;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 20px;
  background: rgb(15 23 42 / 18%);
  cursor: progress;
  font-family: 'Vazirmatn', Tahoma, sans-serif;
}

.brn-page-loading__card {
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  width: min(100%, 320px);
  padding: 24px;
  border: 1px solid var(--theme-border, #d9deed);
  border-radius: 18px;
  background: var(--theme-surface, #fff);
  color: var(--theme-text, #172033);
  box-shadow: 0 16px 48px rgb(15 23 42 / 18%);
  text-align: center;
  line-height: 1.8;
}

.brn-page-loading__title { font-size: 15px; font-weight: 700; }
.brn-page-loading__hint { font-size: 12px; color: var(--theme-muted, #64748b); }
.brn-page-loading__dismiss {
  padding: 6px 16px;
  border: 1px solid var(--theme-border, #d9deed);
  border-radius: 8px;
  background: var(--theme-surface, #fff);
  color: var(--theme-link, #4d58a4);
  font: inherit;
  cursor: pointer;
}
.brn-page-loading__dismiss:focus-visible { outline: 3px solid var(--theme-link, #4d58a4); outline-offset: 3px; }

@keyframes brn-loading-spin { to { transform: rotate(360deg); } }
@keyframes brn-loading-progress {
  from { background-position: -80% 0; }
  to { background-position: 180% 0; }
}
@media (prefers-reduced-motion: reduce) {
  html[data-page-loading]::before { animation: none; background-size: 100% 100%; }
  html[data-page-loading="initial"]::after,
  .brn-page-loading__spinner { animation: none; }
}
@media print {
  .brn-page-loading,
  html[data-page-loading]::before,
  html[data-page-loading]::after { display: none !important; }
}