/* ============================================================
 * Custom Audio Player — Editorial Magazine Style v2.0
 * 路徑：/wp-content/themes/你的主題/css/custom-audio-player.css
 * ============================================================ */

/* === 字體載入 === */
@import url('https://fonts.googleapis.com/css2?family=Fraunces:ital,opsz,wght@0,9..144,300;0,9..144,400;0,9..144,500;1,9..144,300;1,9..144,400&family=Plus+Jakarta+Sans:wght@400;500;600&family=Noto+Serif+TC:wght@300;400;500&family=Noto+Sans+TC:wght@400;500&display=swap');

/* === 設計變數 === */
.custom-audio-playlist {
  --cap-bg: #FBF7F0;
  --cap-bg-deeper: #F5EFE3;
  --cap-surface: #FFFFFF;
  --cap-ink: #1A1614;
  --cap-ink-soft: #5A524C;
  --cap-ink-mute: #8B8278;
  --cap-line: #E8DFD2;
  --cap-line-soft: #F0E9DC;
  --cap-accent: #B8472A;
  --cap-accent-hover: #9A3A21;
  --cap-warm: #8B6F47;
  --cap-radius: 6px;
  --cap-radius-lg: 12px;
  --cap-shadow: 0 1px 2px rgba(26, 22, 20, 0.04), 0 8px 24px rgba(26, 22, 20, 0.04);
  --cap-shadow-hover: 0 1px 2px rgba(26, 22, 20, 0.06), 0 16px 40px rgba(26, 22, 20, 0.08);

  --cap-font-display: 'Fraunces', 'Noto Serif TC', Georgia, serif;
  --cap-font-body: 'Plus Jakarta Sans', 'Noto Sans TC', -apple-system, BlinkMacSystemFont, sans-serif;
}

/* === 容器 === */
.custom-audio-playlist {
  max-width: 880px;
  margin: 0 auto;
  padding: 3rem 1.5rem;
  background: var(--cap-bg);
  font-family: var(--cap-font-body);
  color: var(--cap-ink);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  box-sizing: border-box;
}

.custom-audio-playlist *,
.custom-audio-playlist *::before,
.custom-audio-playlist *::after {
  box-sizing: border-box;
}

/* === 播放清單標題 === */
.cap-playlist-header {
  margin-bottom: 2.5rem;
  padding-bottom: 1.75rem;
  border-bottom: 1px solid var(--cap-line);
}

.cap-eyebrow {
  font-size: 0.7rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--cap-accent);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.875rem;
}

.cap-eyebrow::before {
  content: '';
  display: inline-block;
  width: 24px;
  height: 1px;
  background: var(--cap-accent);
}

.cap-playlist-title {
  font-family: var(--cap-font-display);
  font-size: clamp(2.25rem, 6vw, 3.5rem);
  font-weight: 300;
  font-style: italic;
  letter-spacing: -0.025em;
  margin: 0 0 0.75rem;
  line-height: 1.05;
  color: var(--cap-ink);
}

.cap-playlist-subtitle {
  font-family: var(--cap-font-body);
  font-size: 0.95rem;
  font-weight: 400;
  color: var(--cap-ink-soft);
  margin: 0;
  letter-spacing: 0.01em;
}

/* === 整體音量控制 === */
.global-audio-controls {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.875rem 1.25rem;
  margin-bottom: 2.25rem;
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid var(--cap-line);
  border-radius: 999px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  position: sticky;
  top: 1rem;
  z-index: 10;
}

.global-audio-controls label {
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--cap-ink-soft);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  white-space: nowrap;
  flex-shrink: 0;
}

.global-audio-controls label svg {
  width: 16px;
  height: 16px;
  stroke: currentColor;
}

.global-audio-controls input[type=range] {
  flex: 1;
  -webkit-appearance: none;
  appearance: none;
  height: 4px;
  background: var(--cap-line);
  border-radius: 999px;
  outline: none;
  cursor: pointer;
  min-width: 0;
}

.global-audio-controls input[type=range]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 20px;
  height: 20px;
  background: var(--cap-accent);
  border: 3px solid var(--cap-surface);
  border-radius: 50%;
  box-shadow: 0 0 0 1px var(--cap-accent), 0 2px 6px rgba(184, 71, 42, 0.3);
  cursor: pointer;
  transition: transform 0.15s ease;
}

.global-audio-controls input[type=range]::-webkit-slider-thumb:active {
  transform: scale(1.15);
}

.global-audio-controls input[type=range]::-moz-range-thumb {
  width: 20px;
  height: 20px;
  background: var(--cap-accent);
  border: 3px solid var(--cap-surface);
  border-radius: 50%;
  box-shadow: 0 0 0 1px var(--cap-accent);
  cursor: pointer;
}

/* === 單曲卡片 === */
.audio-item {
  background: var(--cap-surface);
  border: 1px solid var(--cap-line);
  border-radius: var(--cap-radius-lg);
  padding: 1.5rem 1.75rem 1.25rem;
  margin-bottom: 0.875rem;
  transition: border-color 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease;
  position: relative;
  overflow: hidden;
}

.audio-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  width: 3px;
  background: var(--cap-accent);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform 0.3s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.audio-item:hover {
  border-color: var(--cap-warm);
  transform: translateY(-2px);
  box-shadow: var(--cap-shadow-hover);
}

.audio-item.is-playing::before {
  transform: scaleY(1);
}

.audio-item.is-playing {
  border-color: var(--cap-accent);
}

/* === 曲目編號 === */
.audio-item__index {
  font-family: var(--cap-font-display);
  font-size: 0.8125rem;
  font-style: italic;
  font-weight: 400;
  color: var(--cap-warm);
  letter-spacing: 0.04em;
  display: block;
  margin-bottom: 0.25rem;
}

/* === 卡片標題列 === */
.audio-item-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1.25rem;
  margin-bottom: 0.875rem;
}

.audio-item__title-wrap {
  flex: 1;
  min-width: 0;
}

.audio-item h3 {
  font-family: var(--cap-font-display);
  font-size: 1.625rem;
  font-weight: 400;
  letter-spacing: -0.015em;
  margin: 0;
  line-height: 1.25;
  color: var(--cap-ink);
  word-break: break-word;
}

/* === 按鈕 === */
.audio-item-buttons {
  display: flex;
  gap: 0.5rem;
  flex-shrink: 0;
}

.audio-download-button,
.audio-share-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  height: 40px;
  min-width: 40px;
  padding: 0 1rem;
  border: 1px solid var(--cap-line);
  background: transparent;
  color: var(--cap-ink);
  font-family: var(--cap-font-body);
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  border-radius: 999px;
  cursor: pointer;
  text-decoration: none;
  transition: background-color 0.18s ease, color 0.18s ease, border-color 0.18s ease, transform 0.1s ease;
  -webkit-tap-highlight-color: transparent;
  white-space: nowrap;
}

.audio-download-button:hover {
  background: var(--cap-ink);
  color: var(--cap-bg);
  border-color: var(--cap-ink);
}

.audio-share-button:hover {
  background: var(--cap-accent);
  color: var(--cap-bg);
  border-color: var(--cap-accent);
}

.audio-download-button:active,
.audio-share-button:active {
  transform: scale(0.96);
}

.audio-download-button svg,
.audio-share-button svg {
  width: 15px;
  height: 15px;
  stroke-width: 1.75;
  flex-shrink: 0;
}

/* === Plyr 自訂主題 === */
.audio-item .plyr {
  --plyr-color-main: var(--cap-accent);
  --plyr-audio-control-background-hover: transparent;
  --plyr-audio-control-color: var(--cap-ink-soft);
  --plyr-audio-control-color-hover: var(--cap-accent);
  --plyr-range-track-height: 4px;
  --plyr-range-thumb-height: 14px;
  --plyr-range-thumb-background: var(--cap-accent);
  --plyr-range-fill-background: var(--cap-accent);
  --plyr-audio-progress-buffered-background: rgba(26, 22, 20, 0.08);
  --plyr-font-family: var(--cap-font-body);
  --plyr-font-size-time: 0.8125rem;
  --plyr-audio-controls-background: transparent;
  --plyr-tab-focus-color: var(--cap-accent);
}

.audio-item .plyr--audio .plyr__controls {
  padding: 0.25rem 0;
}

.audio-item .plyr__time {
  font-variant-numeric: tabular-nums;
  font-weight: 500;
  color: var(--cap-ink-soft);
}

/* === 搜尋框 === */
.cap-search {
  position: relative;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0 1rem 0 1.25rem;
  margin-bottom: 0.625rem;
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid var(--cap-line);
  border-radius: 999px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: border-color 0.18s ease, box-shadow 0.18s ease, background-color 0.18s ease;
}

.cap-search:focus-within {
  border-color: var(--cap-accent);
  background: var(--cap-surface);
  box-shadow: 0 0 0 3px rgba(184, 71, 42, 0.1);
}

.cap-search__icon {
  width: 18px;
  height: 18px;
  color: var(--cap-ink-mute);
  flex-shrink: 0;
  transition: color 0.18s ease;
}

.cap-search:focus-within .cap-search__icon {
  color: var(--cap-accent);
}

.cap-search__input {
  flex: 1;
  border: none;
  background: transparent;
  padding: 0.875rem 0;
  font-family: var(--cap-font-body);
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--cap-ink);
  outline: none;
  min-width: 0;
  -webkit-appearance: none;
  appearance: none;
}

.cap-search__input::placeholder {
  color: var(--cap-ink-mute);
  font-weight: 400;
  font-style: italic;
}

/* 隱藏瀏覽器內建的清除鈕 (Safari/Chrome) */
.cap-search__input::-webkit-search-cancel-button {
  -webkit-appearance: none;
}

.cap-search__clear {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  padding: 0;
  border: none;
  background: var(--cap-line-soft);
  color: var(--cap-ink-soft);
  border-radius: 50%;
  cursor: pointer;
  transition: background-color 0.15s ease, color 0.15s ease;
  flex-shrink: 0;
  -webkit-tap-highlight-color: transparent;
}

.cap-search__clear:hover {
  background: var(--cap-ink);
  color: var(--cap-bg);
}

.cap-search__clear svg {
  width: 14px;
  height: 14px;
}

.cap-search__clear[hidden] {
  display: none;
}

/* === Empty state (搜尋無結果) === */
.cap-empty {
  text-align: center;
  padding: 3rem 1.5rem;
  color: var(--cap-ink-soft);
  border: 1px dashed var(--cap-line);
  border-radius: var(--cap-radius-lg);
  margin-top: 0.5rem;
  background: rgba(255, 255, 255, 0.4);
}

.cap-empty p {
  margin: 0;
  font-family: var(--cap-font-display);
  font-size: 1.15rem;
  font-style: italic;
  font-weight: 400;
}

.cap-empty__keyword {
  color: var(--cap-accent);
  font-weight: 500;
  font-style: normal;
}

.cap-empty[hidden] {
  display: none;
}

/* === Toast 通知 === */
.cap-toast {
  position: fixed;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%) translateY(140%);
  background: var(--cap-ink);
  color: var(--cap-bg);
  padding: 0.875rem 1.5rem;
  border-radius: 999px;
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  box-shadow: 0 12px 36px rgba(26, 22, 20, 0.25);
  z-index: 9999;
  transition: transform 0.35s cubic-bezier(0.2, 0.8, 0.2, 1);
  pointer-events: none;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: 'Plus Jakarta Sans', 'Noto Sans TC', -apple-system, sans-serif;
}

.cap-toast svg {
  width: 16px;
  height: 16px;
}

.cap-toast.cap-toast--show {
  transform: translateX(-50%) translateY(0);
}

/* === 進場動畫 === */
@keyframes cap-fade-up {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

.audio-item {
  animation: cap-fade-up 0.55s cubic-bezier(0.2, 0.8, 0.2, 1) both;
}

.audio-item:nth-child(2)  { animation-delay: 0.06s; }
.audio-item:nth-child(3)  { animation-delay: 0.12s; }
.audio-item:nth-child(4)  { animation-delay: 0.18s; }
.audio-item:nth-child(5)  { animation-delay: 0.24s; }
.audio-item:nth-child(6)  { animation-delay: 0.30s; }
.audio-item:nth-child(7)  { animation-delay: 0.36s; }
.audio-item:nth-child(8)  { animation-delay: 0.42s; }
.audio-item:nth-child(9)  { animation-delay: 0.48s; }
.audio-item:nth-child(10) { animation-delay: 0.54s; }

/* === 手機優化 === */
@media (max-width: 640px) {
  .custom-audio-playlist {
    padding: 2rem 1rem 3rem;
  }

  .cap-playlist-header {
    margin-bottom: 1.75rem;
    padding-bottom: 1.25rem;
  }

  .cap-search {
    padding: 0 0.875rem 0 1rem;
    margin-bottom: 0.5rem;
  }

  .cap-search__input {
    padding: 0.75rem 0;
    font-size: 16px; /* 防止 iOS Safari 聚焦時自動 zoom */
  }

  .cap-empty {
    padding: 2.5rem 1rem;
  }

  .cap-empty p {
    font-size: 1rem;
  }

  .global-audio-controls {
    padding: 0.75rem 1rem;
    gap: 0.875rem;
    margin-bottom: 1.5rem;
    top: 0.5rem;
  }

  .global-audio-controls label {
    font-size: 0.65rem;
  }

  /* 手機上隱藏「整體音量」文字，只留圖示 */
  .global-audio-controls label span {
    display: none;
  }

  .audio-item {
    padding: 1.25rem 1.125rem 1rem;
    border-radius: var(--cap-radius);
  }

  .audio-item:hover {
    transform: none;
  }

  /* 手機上：標題在上方，按鈕在下方 */
  .audio-item-header {
    flex-direction: column;
    align-items: stretch;
    gap: 1rem;
    margin-bottom: 0.5rem;
  }

  .audio-item h3 {
    font-size: 1.35rem;
  }

  /* 手機上按鈕變大、平分寬度 */
  .audio-item-buttons {
    width: 100%;
    gap: 0.5rem;
  }

  .audio-download-button,
  .audio-share-button {
    flex: 1;
    height: 46px;
    font-size: 0.875rem;
  }

  /* Plyr 控制鈕在手機上更好點 */
  .audio-item .plyr--audio .plyr__control {
    padding: 0.5rem;
  }

  .audio-item .plyr--audio .plyr__control[data-plyr="play"] {
    width: 38px;
    height: 38px;
  }

  .cap-toast {
    bottom: 1rem;
    font-size: 0.8125rem;
    padding: 0.75rem 1.25rem;
  }
}

/* === 尊重使用者「減少動態」偏好 === */
@media (prefers-reduced-motion: reduce) {
  .audio-item {
    animation: none;
  }
  .custom-audio-playlist *,
  .custom-audio-playlist *::before,
  .custom-audio-playlist *::after {
    transition-duration: 0.01ms !important;
  }
}