/* =========================
   Loader
========================= */

:root {
  --loader-surface: #f3f7ff;
  --loader-accent: #143f92;
  --loader-ring-base: rgba(20, 63, 146, 0.14);
  --loader-size: 58px;
}

.site-loader {
  position: fixed;
  inset: 0;
  z-index: 1200;
  display: grid;
  place-items: center;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  background: var(--loader-surface);
  transition: opacity 220ms ease, visibility 220ms ease;
}

html.is-loader-visible .site-loader {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

html.is-loader-visible body {
  overflow: hidden;
}

.site-loader__inner {
  position: relative;
  display: grid;
  place-items: center;
  width: var(--loader-size);
  height: var(--loader-size);
}

.site-loader__ring {
  position: absolute;
  inset: 0;
  border: 7px solid var(--loader-ring-base);
  border-top-color: var(--loader-accent);
  border-radius: 999px;
  animation: loader-spin 0.9s linear infinite;
}

@keyframes loader-spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

@media (prefers-reduced-motion: reduce) {
  .site-loader__ring {
    animation-duration: 1.5s;
  }
}