.skeleton-block {
  background: linear-gradient(
    90deg,
    var(--color-surface-alt) 25%,
    var(--color-border) 37%,
    var(--color-surface-alt) 63%
  );
  background-size: 400% 100%;
  animation: skeleton-shimmer 1.4s ease infinite;
  border-radius: var(--radius-sm);
  height: 14px;
}

@keyframes skeleton-shimmer {
  0% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

.skeleton-table-row {
  display: flex;
  gap: var(--space-4);
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--color-border);
}

.skeleton-table-row .skeleton-block {
  flex: 1;
}

.skeleton-card-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.skeleton-card {
  padding: var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.skeleton-card .skeleton-block:first-child {
  width: 55%;
  height: 16px;
}

/* اسپینر چرخشی سبک اندروید — برای دکمه/لودینگ‌های کوچک */
.spinner-android {
  display: inline-block;
  width: 18px;
  height: 18px;
  border: 2.5px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spinner-android-spin 0.7s linear infinite;
  vertical-align: middle;
}

.spinner-android.spinner-lg {
  width: 32px;
  height: 32px;
  border-width: 3.5px;
}

.spinner-android.spinner-btn {
  width: 14px;
  height: 14px;
  border-width: 2px;
  margin-left: 6px;
  border-color: currentColor;
  border-top-color: transparent;
  opacity: 0.85;
}

.btn-loading {
  cursor: progress !important;
}

@keyframes spinner-android-spin {
  to { transform: rotate(360deg); }
}

.spinner-center {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-6);
}