/* Professional site preloader */
.site-loader {
  position: fixed;
  inset: 0;
  z-index: 99999;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
  background:
    radial-gradient(60rem 40rem at 20% 10%, rgba(37, 99, 235, 0.18), transparent 60%),
    radial-gradient(50rem 35rem at 85% 90%, rgba(234, 88, 12, 0.14), transparent 60%),
    var(--color-background, #f8fafc);
  color: var(--color-foreground, #1e293b);
  transition: opacity 0.5s ease, visibility 0.5s ease;
}

html.dark .site-loader {
  background:
    radial-gradient(60rem 40rem at 20% 10%, rgba(96, 165, 250, 0.16), transparent 60%),
    radial-gradient(50rem 35rem at 85% 90%, rgba(234, 88, 12, 0.12), transparent 60%),
    #0f172a;
  color: #f8fafc;
}

.site-loader.is-hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.site-loader-mark {
  position: relative;
  width: 96px;
  height: 96px;
  display: grid;
  place-items: center;
}

.site-loader-ring {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: conic-gradient(from 0deg, transparent 0 25%, #2563eb 60%, #ea580c 100%);
  -webkit-mask: radial-gradient(farthest-side, transparent calc(100% - 4px), #000 calc(100% - 3px));
  mask: radial-gradient(farthest-side, transparent calc(100% - 4px), #000 calc(100% - 3px));
  animation: siteLoaderSpin 1.1s linear infinite;
}

.site-loader-logo {
  width: 58px;
  height: 58px;
  object-fit: contain;
  border-radius: 50%;
  animation: siteLoaderPulse 1.8s ease-in-out infinite;
}

.site-loader-name {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  line-height: 1.2;
}

.site-loader-bar {
  width: 160px;
  height: 3px;
  margin: 0;
  border-radius: 999px;
  overflow: hidden;
  background: rgba(148, 163, 184, 0.3);
}

.site-loader-bar span {
  display: block;
  width: 40%;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, #2563eb, #ea580c);
  animation: siteLoaderBar 1.2s ease-in-out infinite;
}

@keyframes siteLoaderSpin { to { transform: rotate(360deg); } }

@keyframes siteLoaderPulse {
  0%, 100% { transform: scale(1);    opacity: 1; }
  50%      { transform: scale(0.92); opacity: 0.8; }
}

@keyframes siteLoaderBar {
  0%   { transform: translateX(-100%); }
  100% { transform: translateX(400%); }
}

html.is-loading, html.is-loading body { overflow: hidden; }

@media (prefers-reduced-motion: reduce) {
  .site-loader-ring,
  .site-loader-logo,
  .site-loader-bar span { animation: none; }
}