body {
  margin: 0;
}

html {
  overflow: hidden scroll;
}

#loading-bg {
  position: absolute;
  inset: 0; /* fill viewport */
  display: flex;
  flex-direction: row;
  align-items: center;
  flex-wrap: wrap-reverse;
  justify-content: center;
  background: var(--initial-loader-bg, #fff);
  width: 100%;
  min-height: 100vh;
  gap: 2rem; /* ~24px both row and column */
  align-content: center;
}

.loading {
  position: relative;
  box-sizing: border-box;
  border: 3px solid transparent;
  border-radius: 50%;
  block-size: 55px;
  inline-size: 55px;
}

.loading-logo img,
.loading-logo-img {
  display: block;
  width: 160px;
  height: auto;
  margin: 0; /* ensure gap controls spacing, not margins */
  transition: filter 0.3s ease;
}

/* Apply bright filter to logo in dark mode */
html.theme-dark .loading-logo img,
html.theme-dark .loading-logo-img {
  filter: brightness(0) invert(1) brightness(1.2);
  /* brightness(0) = black, invert(1) = white, brightness(1.2) = extra bright white */
}

.loading .effect-1,
.loading .effect-2,
.loading .effect-3 {
  position: absolute;
  box-sizing: border-box;
  border: 3px solid transparent;
  border-radius: 50%;
  block-size: 100%;
  border-inline-start: 3px solid var(--initial-loader-color, #2b63d4);
  inline-size: 100%;
}

.loading .effect-1 {
  animation: rotate 1s ease infinite;
}

.loading .effect-2 {
  animation: rotate-opacity 1s ease infinite 0.1s;
}

.loading .effect-3 {
  animation: rotate-opacity 1s ease infinite 0.2s;
}

.loading .effects {
  transition: all 0.3s ease;
}

@keyframes rotate {
  0% {
    transform: rotate(0deg);
  }

  100% {
    transform: rotate(1turn);
  }
}

@keyframes rotate-opacity {
  0% {
    opacity: 0.1;
    transform: rotate(0deg);
  }

  100% {
    opacity: 1;
    transform: rotate(1turn);
  }
}