/* ==========================================================================
   MUSIC MINI PLAYER
   center-bottom に浮遊するカプセル型ミニプレイヤー + サービス選択ポップオーバー
   biography ページ共通の style.css の末尾に追加、または単独でインクルード
   ========================================================================== */

/* z-index: プレイヤー 85 / ポップオーバーは子要素として内包
   既存: --z-mobile-menu: 80 / --z-global-menu: 90 の間 */

/* --------------------------------------------------------------------------
   プレイヤー本体（カプセル型・1行）
   -------------------------------------------------------------------------- */

.music-player {
  position: fixed;
  left: 50%;
  bottom: 24px;
  z-index: 85;

  display: flex;
  align-items: center;
  gap: 1.36rem;
  width: max-content;
  max-width: min(560px, calc(100vw - 32px));
  /* 上下は四角ジャケの角がカプセルの丸みに刺さらないよう厚めに、
     左は同じ理由でさらに広めに、右は円形ボタンが半円に自然に収まるため控えめ */
  padding: 1.44rem 1.04rem 1.44rem 2.16rem;

  background: color-mix(in srgb, var(--color-bg-alt) 88%, transparent);
  backdrop-filter: blur(14px) saturate(1.1);
  -webkit-backdrop-filter: blur(14px) saturate(1.1);
  border: 1px solid var(--color-border-subtle);
  border-radius: 999px;
  box-shadow:
    0 8px 28px rgba(0, 0, 0, 0.12),
    0 2px 8px rgba(0, 0, 0, 0.06);

  /* 初期: 非表示（center 揃えのため translateX(-50%) を維持） */
  opacity: 0;
  transform: translate(-50%, 12px);
  pointer-events: none;
  transition:
    opacity 0.3s cubic-bezier(0.16, 1, 0.3, 1),
    transform 0.3s cubic-bezier(0.16, 1, 0.3, 1),
    box-shadow 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.music-player.is-visible {
  opacity: 1;
  transform: translate(-50%, 0);
  pointer-events: auto;
}

/* 曲名が折り返して複数行になった場合、カプセルの丸みを弱めて縦長の形に馴染ませる */
.music-player.is-wrapped {
  align-items: flex-start;
  border-radius: 28px;
}

.music-player.is-wrapped .music-player-jacket,
.music-player.is-wrapped .music-player-play,
.music-player.is-wrapped .music-player-change {
  align-self: center;
}

.music-player:hover {
  box-shadow:
    0 14px 38px rgba(0, 0, 0, 0.16),
    0 3px 10px rgba(0, 0, 0, 0.08);
}

/* ジャケ写（小さく・角丸なし） */
.music-player-jacket {
  width: 56px;
  height: 56px;
  object-fit: cover;
  flex-shrink: 0;
  border-radius: 0;
  background: var(--color-bg);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.18);
}

/* 曲名 + 歌手名（縦積み） */
.music-player-meta {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 0.08rem;
  min-width: 0;
  padding-right: 0.4rem;
}

.music-player-title {
  font-family: var(--font-jp);
  font-size: 1.4rem;
  font-weight: 500;
  line-height: 1.3;
  color: var(--color-text);
  white-space: normal;
  overflow-wrap: break-word;
  letter-spacing: 0.02em;
}

.music-player-artist {
  font-family: var(--font-jp);
  font-size: 1.28rem;
  font-weight: 400;
  line-height: 1.2;
  color: var(--color-text-light);
  white-space: normal;
  overflow-wrap: break-word;
}

.music-player-artist:empty {
  display: none;
}

/* 円形 再生ボタン */
.music-player-play {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  margin-left: auto;
  padding: 0;
  padding-left: 3px; /* ▶ の視覚中心補正 */
  background: var(--color-accent);
  color: #fff;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  transition:
    background var(--transition-standard),
    transform var(--transition-standard);
}

.music-player-play:hover {
  background: var(--color-accent-dark);
  transform: scale(1.08);
}

.music-player-play:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* 変更（···）ボタン — 選択済み時のみ */
.music-player-change {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  padding: 0;
  background: none;
  border: none;
  border-radius: 50%;
  color: var(--color-text-light);
  cursor: pointer;
  transition:
    color var(--transition-standard),
    background var(--transition-standard);
}

.music-player-play[hidden],
.music-player-change[hidden] {
  display: none !important;
}

.music-player-change:hover {
  color: var(--color-accent-dark);
  background: var(--color-glass-active);
}

.music-player-change:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* --------------------------------------------------------------------------
   サービス選択ポップオーバー（プレイヤーの真上に浮く吹き出し）
   -------------------------------------------------------------------------- */

.music-popover {
  position: absolute;
  left: 50%;
  bottom: calc(100% + 12px);
  width: max-content;
  max-width: min(320px, calc(100vw - 32px));
  padding: 1.36rem 1.44rem;

  background: var(--color-bg-alt);
  border: 1px solid var(--color-border-subtle);
  border-radius: 14px;
  box-shadow:
    0 10px 32px rgba(0, 0, 0, 0.14),
    0 3px 10px rgba(0, 0, 0, 0.07);

  /* 初期: 非表示 */
  opacity: 0;
  transform: translate(-50%, 8px);
  pointer-events: none;
  transition:
    opacity 0.25s cubic-bezier(0.16, 1, 0.3, 1),
    transform 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.music-popover.is-visible {
  opacity: 1;
  transform: translate(-50%, 0);
  pointer-events: auto;
}

/* 下向き caret（吹き出しの尻尾） */
.music-popover::after {
  content: "";
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 0;
  border-left: 7px solid transparent;
  border-right: 7px solid transparent;
  border-top: 7px solid var(--color-bg-alt);
  filter: drop-shadow(0 1px 0 var(--color-border-subtle));
}

.music-popover-heading {
  margin: 0 0 0.96rem;
  font-family: var(--font-jp);
  font-size: 1.184rem;
  font-weight: 500;
  color: var(--color-text-muted);
  letter-spacing: 0.03em;
  text-align: center;
}

.music-popover-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.64rem;
}

/* サービスチップ（小さいピル） */
.music-popover-chip {
  padding: 0.72rem 1.52rem;
  background: var(--color-bg);
  border: 1px solid var(--color-border-subtle);
  border-radius: 999px;
  font-family: var(--font-jp);
  font-size: 1.312rem;
  color: var(--color-text-muted);
  cursor: pointer;
  white-space: nowrap;
  letter-spacing: 0.02em;
  transition: all var(--transition-standard);
}

.music-popover-chip:hover {
  border-color: var(--color-accent);
  color: var(--color-accent-dark);
  background: var(--color-glass-active);
}

.music-popover-chip:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* --------------------------------------------------------------------------
   アニメーション無効化
   -------------------------------------------------------------------------- */

@media (prefers-reduced-motion: reduce) {
  .music-player,
  .music-popover,
  .music-player-play {
    transition: none;
  }
}

/* --------------------------------------------------------------------------
   PC（サイドメニューあり、769px〜）
   header 実幅 275px + border-right 5px = 280px 分、本文エリアの中央に合わせて右へオフセット
   -------------------------------------------------------------------------- */

@media (min-width: 769px) {
  .music-player {
    left: calc(50% + 140px);
  }
}

/* --------------------------------------------------------------------------
   モバイル (〜767px)
   -------------------------------------------------------------------------- */

@media (max-width: 768px) {
  .music-player {
    bottom: 16px;
    max-width: calc(100vw - 24px);
    gap: 1.12rem;
    padding: 1.28rem 0.88rem 1.28rem 1.76rem;
  }

  .music-player-jacket {
    width: 48px;
    height: 48px;
  }

  .music-player-play {
    width: 44px;
    height: 44px;
  }

  .music-popover {
    max-width: calc(100vw - 24px);
  }
}