/**
 * Minimalist Loader - frontend.
 *
 * Deliberately unlayered: rules inside @layer rank below every unlayered theme
 * rule, and this overlay has to win against whatever the theme ships.
 */

html.minimalist-loader-active,
html.minimalist-loader-scroll-locked {
  overflow: hidden !important;
}

/*
 * The post-release hold runs with the page already visible. Reserving the
 * scrollbar's room keeps the layout from jumping sideways when scrolling returns.
 */
html.minimalist-loader-scroll-locked {
  scrollbar-gutter: stable;
}

#minimalist-loader-container {
  position: fixed;
  inset: 0;
  z-index: 999999;

  display: flex;
  align-items: center;
  justify-content: center;

  background: var(--ml-bg, rgba(255, 255, 255, 0.94));
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);

  opacity: 1;
  transition: opacity var(--ml-fade, 240ms) ease;

  &.is-hiding {
    opacity: 0;
  }
}

.minimalist-loader__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;

  max-inline-size: min(320px, calc(100vw - 48px));
  text-align: center;
}

.minimalist-loader__brand {
  max-inline-size: 180px;
}

.minimalist-loader__logo {
  display: block;
  block-size: auto;
  max-block-size: 72px;
  max-inline-size: 180px;
  object-fit: contain;
}

.minimalist-loader__subtitle {
  margin: -4px 0 0;
  color: var(--ml-primary, #111827);
  font-size: 13px;
  line-height: 1.45;
  text-wrap: pretty;
}

.minimalist-loader__mark {
  position: relative;
  block-size: 48px;
  inline-size: 48px;
  color: var(--ml-primary, #111827);

  /* The markup always ships three spans; only the dots preset renders them. */
  & span {
    display: none;
  }
}

.minimalist-loader--spinner .minimalist-loader__mark {
  border: 2px solid var(--ml-secondary, #e5e7eb);
  border-block-start-color: var(--ml-primary, #111827);
  border-radius: 50%;
  animation: minimalist-loader-spin 800ms linear infinite;
}

.minimalist-loader--dots .minimalist-loader__mark {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  block-size: 14px;
  inline-size: 58px;

  & span {
    display: block;
    block-size: 8px;
    inline-size: 8px;
    background: var(--ml-primary, #111827);
    border-radius: 50%;
    opacity: 0.35;
    animation: minimalist-loader-dot 900ms ease-in-out infinite;

    &:nth-child(2) {
      animation-delay: 120ms;
    }

    &:nth-child(3) {
      animation-delay: 240ms;
    }
  }
}

.minimalist-loader--bar .minimalist-loader__mark {
  block-size: 3px;
  inline-size: 96px;
  background: var(--ml-secondary, #e5e7eb);
  border-radius: 999px;
  overflow: hidden;

  &::after {
    content: "";
    display: block;
    block-size: 100%;
    inline-size: 38%;
    background: var(--ml-primary, #111827);
    border-radius: inherit;
    animation: minimalist-loader-bar 1s ease-in-out infinite;
  }
}

.minimalist-loader--double-ring .minimalist-loader__mark {
  border: 2px solid var(--ml-secondary, #e5e7eb);
  border-inline-start-color: var(--ml-primary, #111827);
  border-radius: 50%;
  animation: minimalist-loader-spin 900ms linear infinite;

  &::after {
    content: "";
    position: absolute;
    inset: 8px;
    border: 2px solid transparent;
    border-inline-end-color: var(--ml-primary, #111827);
    border-radius: 50%;
  }
}

.minimalist-loader--pulse .minimalist-loader__mark {
  block-size: 14px;
  inline-size: 14px;
  background: var(--ml-primary, #111827);
  border-radius: 50%;

  &::after {
    content: "";
    position: absolute;
    inset: -14px;
    border: 1px solid var(--ml-primary, #111827);
    border-radius: 50%;
    opacity: 0;
    animation: minimalist-loader-pulse 1.1s ease-out infinite;
  }
}

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

@keyframes minimalist-loader-dot {
  50% {
    opacity: 1;
    transform: translateY(-3px);
  }
}

@keyframes minimalist-loader-bar {
  from {
    transform: translateX(-110%);
  }

  to {
    transform: translateX(270%);
  }
}

@keyframes minimalist-loader-pulse {
  from {
    opacity: 0.7;
    transform: scale(0.75);
  }

  to {
    opacity: 0;
    transform: scale(1.35);
  }
}

@keyframes minimalist-loader-breathe {
  50% {
    opacity: 0.3;
  }
}

@media (prefers-reduced-transparency: reduce) {
  #minimalist-loader-container {
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }
}

/*
 * Swap every motion-based animation for a still opacity pulse: the "something is
 * loading" signal survives, the vestibular trigger does not.
 */
@media (prefers-reduced-motion: reduce) {
  .minimalist-loader__mark,
  .minimalist-loader__mark::after,
  .minimalist-loader__mark span {
    animation: minimalist-loader-breathe 1.6s ease-in-out infinite !important;
    transform: none !important;
  }

  .minimalist-loader--pulse .minimalist-loader__mark::after,
  .minimalist-loader--double-ring .minimalist-loader__mark::after {
    animation: none !important;
    opacity: 0.4;
  }
}

/*
 * Forced colors flattens background-color to Canvas, which would erase the marks
 * that are drawn as filled shapes rather than borders. Repaint those in CanvasText.
 */
@media (forced-colors: active) {
  .minimalist-loader--dots .minimalist-loader__mark span,
  .minimalist-loader--pulse .minimalist-loader__mark,
  .minimalist-loader--bar .minimalist-loader__mark::after {
    background: CanvasText;
  }
}