/* ページ読み込み中オーバーレイ */
html.is-loading {
  overflow: hidden;
}

#page-loader {
  position: fixed;
  inset: 0;
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #fff;
  transition: opacity 0.55s ease, visibility 0.55s ease;
}

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

.page-loader__inner {
  text-align: center;
  padding: 24px;
}

.page-loader__title {
  margin: 0;
  color: var(--brand-blue, #242179);
  font-family: "Noto Serif JP", serif;
  font-size: clamp(22px, 5vw, 36px);
  font-weight: 500;
  letter-spacing: 0.14em;
  line-height: 1.3;
}

.page-loader__tagline {
  margin: 8px 0 0;
  color: var(--brand-blue, #242179);
  font-family: "Noto Serif JP", serif;
  font-size: clamp(12px, 2.5vw, 16px);
  font-weight: 400;
  letter-spacing: 0.35em;
  line-height: 1.4;
}

.page-loader__line {
  display: block;
  width: min(160px, 40vw);
  height: 2px;
  margin: 28px auto 0;
  background: var(--brand-blue, #242179);
  transform: scaleX(0);
  transform-origin: center;
  animation: page-loader-line 1.4s ease-in-out infinite;
}

@keyframes page-loader-line {
  0% {
    transform: scaleX(0);
    transform-origin: left;
  }

  45% {
    transform: scaleX(1);
    transform-origin: left;
  }

  55% {
    transform: scaleX(1);
    transform-origin: right;
  }

  100% {
    transform: scaleX(0);
    transform-origin: right;
  }
}

@media (prefers-reduced-motion: reduce) {
  #page-loader {
    transition: opacity 0.2s ease, visibility 0.2s ease;
  }

  .page-loader__line {
    animation: none;
    transform: scaleX(1);
    opacity: 0.35;
  }
}