:root {
  --page-loader-bg: var(--login-bg-primary, #151821);
  --page-loader-bg-quiet: var(--login-bg-secondary, #1f2230);
  --page-loader-surface: color-mix(in srgb, var(--login-bg-card, rgba(31, 34, 48, 0.9)) 88%, transparent);
  --page-loader-surface-muted: color-mix(in srgb, var(--login-bg-secondary, #1f2230) 76%, transparent);
  --page-loader-text: var(--login-text-primary, #e7ebf8);
  --page-loader-muted: var(--login-text-muted, rgba(231, 235, 248, 0.78));
  --page-loader-line: color-mix(in srgb, var(--page-loader-text) 14%, transparent);
  --page-loader-line-strong: color-mix(in srgb, var(--page-loader-text) 28%, transparent);
  --page-loader-accent: var(--login-accent, #8aa4ff);
  --page-loader-accent-soft: color-mix(in srgb, var(--page-loader-accent) 13%, transparent);
  --page-loader-shadow: var(--login-shadow-xl, 0 22px 42px rgba(0, 0, 0, 0.55));
  --page-loader-brand-watermark-opacity: 0.055;
}

:root[data-theme="dark"],
:root[data-theme="night"] {
  --page-loader-brand-watermark-opacity: 0.048;
}

body.page-loading {
  overflow: hidden;
}

body.page-loaded {
  overflow: auto;
}

.page-loader {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(1.5rem, 4vw, 2.5rem);
  color: var(--page-loader-text);
  background:
    radial-gradient(circle at 50% 28%, var(--page-loader-accent-soft), transparent 42%),
    linear-gradient(155deg, var(--page-loader-bg), var(--page-loader-bg-quiet));
  transition: opacity 320ms ease, visibility 320ms ease;
  pointer-events: all;
  overflow: hidden;
}

.page-loader::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(var(--page-loader-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--page-loader-line) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(circle at 50% 34%, rgba(0, 0, 0, 0.66), transparent 70%);
  opacity: 0.3;
  pointer-events: none;
  z-index: 0;
}

.page-loader::after {
  content: "";
  position: absolute;
  top: 50%;
  left: clamp(-13rem, -8vw, -2.5rem);
  width: clamp(34rem, 64vw, 58rem);
  aspect-ratio: 1 / 1;
  background: var(--page-loader-text);
  opacity: var(--page-loader-brand-watermark-opacity);
  mask: url("/icons/arsmagik-astroapp-ico-64-light.svg") center / contain no-repeat;
  -webkit-mask: url("/icons/arsmagik-astroapp-ico-64-light.svg") center / contain no-repeat;
  transform: translateY(-50%) rotate(0deg);
  transform-origin: 50% 50%;
  animation: page-loader-watermark-turn 120s linear infinite;
  pointer-events: none;
  z-index: 0;
}

.page-loader__surface {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 1rem;
  place-items: center;
  width: min(410px, 100%);
  padding: clamp(1.85rem, 4vw, 2.35rem);
  border: 1px solid var(--page-loader-line);
  border-radius: 20px;
  background: linear-gradient(180deg, var(--page-loader-surface), var(--page-loader-surface-muted));
  box-shadow: var(--page-loader-shadow);
  text-align: center;
  backdrop-filter: blur(16px);
}

.page-loader__constellation {
  position: relative;
  width: clamp(54px, 12vw, 72px);
  aspect-ratio: 1 / 1;
  margin: 0 auto;
  background: var(--page-loader-text);
  filter: drop-shadow(0 0 16px color-mix(in srgb, var(--page-loader-accent) 24%, transparent));
  mask: url("/icons/arsmagik-astroapp-ico-64-light.svg") center / contain no-repeat;
  -webkit-mask: url("/icons/arsmagik-astroapp-ico-64-light.svg") center / contain no-repeat;
  transform-origin: 50% 50%;
  animation: page-loader-logo-turn 9s linear infinite;
}

.page-loader__constellation::before,
.page-loader__constellation::after {
  content: none;
}

.page-loader__orb,
.page-loader__trail {
  display: none;
}

.page-loader__text {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  align-items: center;
}

.page-loader__title {
  margin: 0;
  font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: clamp(1.16rem, 2.5vw, 1.34rem);
  font-weight: 700;
  letter-spacing: 0;
}

.page-loader__message {
  margin: 0;
  font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: clamp(0.88rem, 2.3vw, 0.96rem);
  line-height: 1.45;
  color: var(--page-loader-muted);
}

.page-loader__sr-only {
  border: 0;
  clip: rect(0 0 0 0);
  height: 1px;
  margin: -1px;
  overflow: hidden;
  padding: 0;
  position: absolute;
  width: 1px;
}

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

@keyframes page-loader-logo-turn {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

@keyframes page-loader-watermark-turn {
  0% {
    transform: translateY(-50%) rotate(0deg);
  }
  100% {
    transform: translateY(-50%) rotate(360deg);
  }
}

@media (max-width: 720px) {
  .page-loader::after {
    left: clamp(-16rem, -38vw, -8rem);
    width: clamp(27rem, 112vw, 38rem);
    opacity: calc(var(--page-loader-brand-watermark-opacity) * 0.82);
  }

  .page-loader__surface {
    width: min(310px, 100%);
    padding: clamp(1.45rem, 7vw, 1.85rem);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-loader,
  .page-loader * {
    animation-duration: 1ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0ms !important;
  }

  .page-loader::after {
    animation-duration: 1ms !important;
    animation-iteration-count: 1 !important;
  }
}