/**
 * @file
 * Page loader — fullscreen overlay with logo and animated frame.
 */

#page-loader {
  position: fixed;
  inset: 0;
  z-index: 99999;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: rgb(13, 38, 38);
  transition: opacity 0.6s ease, visibility 0s linear 0.6s;
}

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

/* Animated frame around the logo */
.page-loader__frame {
  position: relative;
  width: 140px;
  height: 140px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Spinning border */
.page-loader__frame::before {
  content: '';
  position: absolute;
  inset: 0;
  border: 2px solid rgba(255, 255, 255, 0.1);
  border-top-color: rgba(255, 255, 255, 0.85);
  border-radius: 50%;
  animation: loader-spin 1s linear infinite;
}

/* Pulsing scale on the logo */
.page-loader__logo {
  display: block;
  width: 80px;
  height: auto;
  filter: brightness(0) invert(1);
  animation: loader-pulse 1.6s ease-in-out infinite;
}

#page-loader.page-loader--custom-logo .page-loader__logo {
  filter: none;
}

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

@keyframes loader-pulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(0.92); opacity: 0.7; }
}

/* Reduced motion: no animations */
@media (prefers-reduced-motion: reduce) {
  .page-loader__frame::before {
    animation: none;
    border-color: rgba(255, 255, 255, 0.3);
    border-top-color: rgba(255, 255, 255, 0.85);
  }
  .page-loader__logo {
    animation: none;
  }
}