/* IEGrinds universal skeleton loading system */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

:root {
  --ieg-sk-base: #e6ebe8;
  --ieg-sk-mid: #d5ddd8;
  --ieg-sk-hi: #f2f6f3;
  --ieg-sk-mint: #e8f0eb;
  --ieg-sk-radius: 10px;
}

.ieg-skeleton {
  position: relative;
  width: 100%;
  max-width: 100%;
  padding: 4px 0 12px;
  color: var(--ieg-text-muted, #5c6570);
  overflow: hidden;
}

.ieg-skeleton-hint {
  margin: 16px 0 0;
  font-size: 13px;
  font-weight: 600;
  color: #748078;
  text-align: left;
}

.ieg-skeleton-line,
.ieg-skeleton-block,
.ieg-skeleton-circle,
.ieg-skeleton-button,
.ieg-skeleton-card,
.ieg-sk-pill {
  display: block;
  background: linear-gradient(90deg, var(--ieg-sk-base) 0%, var(--ieg-sk-mint) 45%, var(--ieg-sk-hi) 55%, var(--ieg-sk-base) 100%);
  background-size: 200% 100%;
  border-radius: var(--ieg-sk-radius);
}

.ieg-skeleton-line { min-height: 10px; }
.ieg-skeleton-block { min-height: 24px; }
.ieg-skeleton-circle { border-radius: 50%; flex: 0 0 auto; }
.ieg-skeleton-button {
  height: 36px;
  min-width: 72px;
  border-radius: 999px;
  flex: 0 0 auto;
}
.ieg-sk-pill {
  height: 28px;
  border-radius: 999px;
  flex: 0 0 auto;
}
.ieg-sk-progress {
  height: 8px !important;
  border-radius: 999px !important;
  margin: 8px 0 14px;
}

.ieg-skeleton-card {
  padding: 16px;
  background: #fff;
  border: 1px solid #e4ebe6;
  border-radius: 14px;
  box-shadow: 0 2px 8px rgba(17, 57, 39, .03);
  background-image: none;
}
.ieg-skeleton-card > * + * { margin-top: 10px; }

.ieg-skeleton-row {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
}
.ieg-sk-spacer { flex: 1 1 auto; min-width: 8px; }
.ieg-sk-note-body { flex: 1 1 auto; min-width: 0; display: flex; flex-direction: column; gap: 8px; }

.ieg-skeleton-grid {
  display: grid;
  gap: 12px;
}
.ieg-sk-stats { grid-template-columns: repeat(3, minmax(0, 1fr)); margin: 14px 0; }
.ieg-sk-cards { grid-template-columns: repeat(3, minmax(0, 1fr)); margin-top: 12px; }
.ieg-sk-cards--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }

.ieg-sk-hero { margin-bottom: 8px; }
.ieg-sk-hero > * + * { margin-top: 10px; }
.ieg-sk-toolbar { flex-wrap: wrap; margin: 10px 0 14px; }
.ieg-sk-pills { flex-wrap: wrap; margin: 12px 0 16px; }
.ieg-sk-list { display: flex; flex-direction: column; gap: 10px; }
.ieg-sk-list > * + * { margin-top: 0; }

.ieg-sk-training__exit { margin-bottom: 12px; }
.ieg-sk-training__meta { justify-content: space-between; margin-bottom: 6px; }
.ieg-sk-qcard { margin-top: 8px; }
.ieg-sk-answers { display: flex; flex-direction: column; gap: 10px; margin: 16px 0 8px; }
.ieg-sk-answer {
  padding: 12px 14px;
  border: 1px solid #e6ece8;
  border-radius: 12px;
  background: #fbfcfb;
}
.ieg-sk-actions { margin-top: 14px; flex-wrap: wrap; }
.ieg-sk-note-row,
.ieg-sk-search-row,
.ieg-sk-forum-card,
.ieg-sk-admin-row {
  padding: 12px 14px;
  border: 1px solid #e6ece8;
  border-radius: 12px;
  background: #fff;
}
.ieg-sk-admin-row { justify-content: space-between; }
.ieg-sk-nav { flex-wrap: wrap; margin-top: 14px; gap: 8px; }
.ieg-sk-navi { border-radius: 8px !important; }
.ieg-sk-mockbar { justify-content: space-between; margin-bottom: 8px; flex-wrap: wrap; }
.ieg-sk-field { margin: 12px 0; }
.ieg-sk-generic > * + * { margin-top: 12px; }

/* Shimmer */
.ieg-skeleton-shimmer .ieg-skeleton-line,
.ieg-skeleton-shimmer .ieg-skeleton-block,
.ieg-skeleton-shimmer .ieg-skeleton-circle,
.ieg-skeleton-shimmer .ieg-skeleton-button,
.ieg-skeleton-shimmer .ieg-sk-pill {
  animation: ieg-sk-shimmer 1.35s ease-in-out infinite;
}

@keyframes ieg-sk-shimmer {
  0% { background-position: 100% 0; }
  100% { background-position: -100% 0; }
}

@media (prefers-reduced-motion: reduce) {
  .ieg-skeleton-shimmer .ieg-skeleton-line,
  .ieg-skeleton-shimmer .ieg-skeleton-block,
  .ieg-skeleton-shimmer .ieg-skeleton-circle,
  .ieg-skeleton-shimmer .ieg-skeleton-button,
  .ieg-skeleton-shimmer .ieg-sk-pill {
    animation: none;
    background: var(--ieg-sk-base);
  }
}

/* Long-load / fail */
.ieg-skeleton-fail {
  padding: 28px 18px;
  text-align: center;
  border: 1px solid #e4ebe6;
  border-radius: 14px;
  background: #fff;
  max-width: 420px;
  margin: 24px auto;
}
.ieg-skeleton-fail__title {
  margin: 0 0 8px;
  font-size: 16px;
  font-weight: 750;
  color: #172019;
}
.ieg-skeleton-fail__text {
  margin: 0 0 16px;
  font-size: 14px;
  color: #5c6570;
  line-height: 1.45;
}

/* Page overlay mode (AJAX nav) — keep viewport-centered fixed overlay */
.main-overlay.ieg-loading-overlay {
  background-color: rgba(243, 242, 235, 0.72);
  backdrop-filter: blur(1px);
  padding: 24px 16px;
  overflow: auto;
  -webkit-overflow-scrolling: touch;
}
.main-overlay.ieg-loading-overlay .ieg-skeleton {
  width: min(920px, 100%);
  margin: 0 auto;
  padding: 18px;
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid #e4ebe6;
  border-radius: 16px;
  box-shadow: 0 8px 28px rgba(17, 57, 39, .06);
}

/* Local target busy */
[data-ieg-loading="1"] {
  position: relative;
  min-height: 48px;
}

/* Responsive */
@media (max-width: 900px) {
  .ieg-sk-cards { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .ieg-sk-stats { grid-template-columns: 1fr; }
}

@media (max-width: 430px) {
  .ieg-skeleton { padding-bottom: 8px; }
  .ieg-sk-cards,
  .ieg-sk-cards--2 { grid-template-columns: 1fr; }
  .ieg-sk-actions { gap: 8px; }
  .ieg-sk-note-row { flex-wrap: wrap; }
  .ieg-sk-admin-row { flex-wrap: wrap; }
  .main-overlay.ieg-loading-overlay .ieg-skeleton {
    padding: 14px;
    border-radius: 12px;
  }
  .ieg-sk-training__meta { flex-direction: column; align-items: flex-start; gap: 6px; }
}