/*
 * File: assets/css/components/loader.css
 * Desc: グローバル花びらローダー（全画面）＋インラインローダー＋シートローダー統合。
 * Use: global: <div id="globalLoader" class="global-loader">…</div>
 *      inline: <div class="ss-loader"></div>
 *      sheet : <div class="sheet-loader" hidden>…</div>（bottom-sheet内）
 * Note: JS(loader.js)で show/hide。テーマ .urgent/.relax/.info で配色変更。
 */

/* ローディング中はページ全体をスクロール不可に */
body.loading-lock {
  overflow: hidden !important;
  touch-action: none !important;
}

.global-loader {
  --loader-size: 64px;
  --loader-petal: 16px;
  --loader-radius: 26px;
  --loader-accent: var(--accent, #26c8c4);
  position: fixed;
  inset: 0;
  z-index: 12000;
  display: grid;
  place-items: center;
  background: color-mix(in oklab, #ffffff 92%, var(--accent, #26c8c4) 0%);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  opacity: 1;
  transition: opacity 0.38s ease;
}
.global-loader.is-hiding {
  opacity: 0;
  pointer-events: none;
}

.global-loader__inner {
  display: grid;
  gap: 14px;
  place-items: center;
}
.sr-only {
  position: absolute !important;
  width: 1px;
  height: 1px;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.loader-flower {
  position: relative;
  width: var(--loader-size);
  height: var(--loader-size);
  animation: loader-spin 1.05s linear infinite;
}
.loader-flower i {
  position: absolute;
  left: 50%;
  top: 50%;
  width: var(--loader-petal);
  height: var(--loader-petal);
  margin-left: calc(var(--loader-petal) / -2);
  margin-top: calc(var(--loader-petal) / -2);
  border-radius: 50%;
  background: var(--loader-accent);
  opacity: 0.18;
  transform: rotate(calc(var(--i) * 45deg)) translate(var(--loader-radius));
}
.loader-flower i:nth-child(1) {
  opacity: 0.95;
}
.loader-flower i:nth-child(2) {
  opacity: 0.75;
}
.loader-flower i:nth-child(3) {
  opacity: 0.55;
}
.loader-flower i:nth-child(4) {
  opacity: 0.4;
}
@keyframes loader-spin {
  to {
    transform: rotate(360deg);
  }
}

.ss-loader {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 3px solid #eee;
  border-top-color: var(--accent);
  animation: loader-spin 0.8s linear infinite;
  display: inline-block;
  margin: 8px;
}

/* bottom-sheet内の覆いローダー */
.bottom-sheet .sheet-loader[hidden] {
  display: none !important;
}
.bottom-sheet .sheet-loader {
  --loader-size: 64px;
  --loader-petal: 16px;
  --loader-radius: 26px;
  --loader-accent: var(--accent, #26c8c4);
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  background: color-mix(in oklab, #ffffff 92%, var(--accent, #26c8c4) 0%);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  opacity: 0 !important;
  pointer-events: none !important;
  transition: opacity 0.38s ease !important;
  z-index: 2 !important;
}
.bottom-sheet .sheet-loader.is-visible {
  opacity: 1 !important;
  pointer-events: auto !important;
}
.bottom-sheet .loader-flower {
  position: relative;
  width: var(--loader-size);
  height: var(--loader-size);
  animation: loader-spin 1.05s linear infinite;
}
.bottom-sheet .loader-flower i {
  position: absolute;
  left: 50%;
  top: 50%;
  width: var(--loader-petal);
  height: var(--loader-petal);
  margin-left: calc(var(--loader-petal) / -2);
  margin-top: calc(var(--loader-petal) / -2);
  border-radius: 50%;
  background: var(--loader-accent);
  opacity: 0.18;
  transform: rotate(calc(var(--i) * 45deg)) translate(var(--loader-radius));
}

/* テーマ */
.global-loader.urgent,
.bottom-sheet.urgent .sheet-loader {
  --loader-accent: #e65b4a;
}
.global-loader.relax,
.bottom-sheet.relax .sheet-loader {
  --loader-accent: #f7a8d0;
}
.global-loader.info,
.bottom-sheet.info .sheet-loader {
  --loader-accent: #ff9c47;
}

/* ローダー下のメッセージ（点滅アニメーション） */
.global-loader__message {
  margin-top: 16px;
  font-size: 0.85rem;
  color: #000;
  text-align: center;
  letter-spacing: 0.08em;
  animation: loaderBlink 1.5s ease-in-out infinite;
}

/* 点滅アニメーション */
@keyframes loaderBlink {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.2;
  }
}