/* SPA chrome — progress bar, transitions, skeleton, errors */

#spa-progress {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  z-index: 9999;
  pointer-events: none;
  opacity: 0;
  transition: opacity .15s ease;
}
#spa-progress.is-active,
#spa-progress.is-done,
#spa-progress.is-error {
  opacity: 1;
}
#spa-progress .spa-progress-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, #10b981, #34d399, #059669);
  box-shadow: 0 0 8px rgba(16, 185, 129, .45);
  transition: width .35s cubic-bezier(.4, 0, .2, 1);
}
#spa-progress.is-error .spa-progress-fill {
  background: linear-gradient(90deg, #ef4444, #f97316);
}

#main-content.spa-fade-out {
  opacity: 0;
  transform: translateY(4px);
  transition: opacity .16s ease, transform .16s ease;
}
#main-content.spa-fade-in {
  opacity: 1;
  transform: none;
  animation: spaFadeIn .2s ease;
}
@keyframes spaFadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: none; }
}

#main-content.spa-loading {
  min-height: 40vh;
}

.spa-skeleton {
  padding: 1.25rem 0.25rem 2rem;
  display: flex;
  flex-direction: column;
  gap: 14px;
  max-width: 920px;
}
.spa-skel-line,
.spa-skel-block {
  border-radius: 10px;
  background: linear-gradient(90deg, #e2e8f0 0%, #f8fafc 45%, #e2e8f0 100%);
  background-size: 200% 100%;
  animation: spaShimmer 1.1s ease-in-out infinite;
}
html.dark .spa-skel-line,
html.dark .spa-skel-block {
  background: linear-gradient(90deg, #1e293b 0%, #334155 45%, #1e293b 100%);
  background-size: 200% 100%;
}
.spa-skel-line { height: 14px; }
.spa-skel-line.w-1\/3 { width: 33%; }
.spa-skel-line.w-1\/2 { width: 50%; }
.spa-skel-line.w-2\/3 { width: 66%; }
.spa-skel-block { height: 160px; width: 100%; border-radius: 16px; }
@keyframes spaShimmer {
  0% { background-position: 100% 0; }
  100% { background-position: -100% 0; }
}

.spa-error {
  max-width: 520px;
  margin: 2.5rem auto;
  padding: 1.5rem;
  border-radius: 16px;
  border: 1px solid #fecaca;
  background: #fff7f7;
}
html.dark .spa-error {
  background: #1c1917;
  border-color: #7f1d1d;
}
.spa-retry-btn,
.spa-hard-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.55rem 1rem;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 700;
  text-decoration: none;
}
.spa-retry-btn {
  border: none;
  cursor: pointer;
  color: #fff;
  background: linear-gradient(180deg, #10b981, #059669);
}
.spa-hard-link {
  color: #0f172a;
  background: #f1f5f9;
  border: 1px solid #e2e8f0;
}
html.dark .spa-hard-link {
  color: #e2e8f0;
  background: #334155;
  border-color: #475569;
}

#main-sidebar a[aria-current="page"] .sidebar-icon {
  box-shadow: 0 0 0 2px rgba(16, 185, 129, 0.35);
}

@media (prefers-reduced-motion: reduce) {
  #main-content.spa-fade-out,
  #main-content.spa-fade-in,
  .spa-skel-line,
  .spa-skel-block {
    animation: none !important;
    transition: none !important;
  }
}