/**
 * PZMusicPlayer - 嵌入式音乐播放器样式
 * 萍乡中学校园论坛 - 符合项目设计规范
 * 
 * 依赖: forum-theme.css (必须优先引入)
 */

/* ==================== 播放器容器 ==================== */
.pz-music-player {
  --pzmp-cover-size: 180px;
  --pzmp-spacing: 20px;
  --pzmp-radius: 16px;
  --pzmp-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);

  /* PsychStation 配色覆盖 */
  --accent-primary: #8A9A6F;
  --accent-hover: #7A8A5F;
  --accent-light: #D4DFC7;
  --pz-purple-400: #A3B899;
  --pz-purple-500: #8A9A6F;
  --pz-purple-600: #7A8A5F;

  width: 100%;
  max-width: 800px;
  margin: 0 auto;
  background: var(--bg-tertiary);
  border-radius: var(--pzmp-radius);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  font-family: '寒蝉半圆体', 'Microsoft YaHei', sans-serif;
  border: 1px solid var(--border-color);
  position: relative; /* 为播放列表绝对定位提供参考 */
}

/* ==================== 主区域布局 ==================== */
.pz-music-player__main {
  display: flex;
  gap: var(--pzmp-spacing);
  padding: var(--pzmp-spacing);
  background: linear-gradient(135deg, var(--bg-tertiary) 0%, var(--bg-secondary) 100%);
}

/* ==================== 专辑封面区域 ==================== */
.pz-music-player__cover-section {
  position: relative;
  flex-shrink: 0;
}

.pz-music-player__cover-wrapper {
  position: relative;
  width: var(--pzmp-cover-size);
  height: var(--pzmp-cover-size);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: var(--pzmp-transition);
}

/* 封面旋转动画已移除 - 用户反馈不需要 */
/* .pz-music-player__cover-wrapper.playing {
  animation: pzmp-rotate 20s linear infinite;
}

@keyframes pzmp-rotate {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
} */

.pz-music-player__cover {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.pz-music-player__cover-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: var(--pzmp-transition);
}

.pz-music-player__cover-wrapper:hover .pz-music-player__cover-overlay {
  opacity: 1;
}

.pz-music-player__cover-btn {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: var(--accent-primary);
  border: none;
  color: white;
  cursor: var(--cursor-pointer);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--pzmp-transition);
  box-shadow: var(--shadow-md);
}

.pz-music-player__cover-btn:hover {
  background: var(--accent-hover);
  transform: scale(1.1);
}

.pz-music-player__cover-btn svg {
  width: 28px;
  height: 28px;
  margin-left: 4px;
}

.pz-music-player__cover-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: calc(var(--pzmp-cover-size) + 20px);
  height: calc(var(--pzmp-cover-size) + 20px);
  background: var(--accent-primary);
  border-radius: 50%;
  opacity: 0.15;
  filter: blur(30px);
  z-index: -1;
}

/* ==================== 歌曲信息区域 ==================== */
.pz-music-player__info-section {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-width: 0;
}

.pz-music-player__song-info {
  margin-bottom: 16px;
}

.pz-music-player__song-name {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0 0 8px 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.pz-music-player__artist {
  font-size: 1rem;
  color: var(--text-muted);
  margin: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ==================== 进度条区域 ==================== */
.pz-music-player__progress-section {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.pz-music-player__time-current,
.pz-music-player__time-total {
  font-size: 0.875rem;
  color: var(--text-muted);
  font-variant-numeric: tabular-nums;
  min-width: 45px;
}

.pz-music-player__time-current {
  text-align: right;
}

.pz-music-player__progress-bar {
  flex: 1;
  height: 24px;
  display: flex;
  align-items: center;
  cursor: var(--cursor-pointer);
}

.pz-music-player__progress-track {
  width: 100%;
  height: 6px;
  background: var(--neutral-200);
  border-radius: 3px;
  overflow: hidden;
  position: relative;
}

.pz-music-player__progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent-primary), var(--pz-purple-400));
  border-radius: 3px;
  position: relative;
  transition: width 0.1s linear;
}

.pz-music-player__progress-thumb {
  position: absolute;
  right: -8px;
  top: 50%;
  transform: translateY(-50%);
  width: 16px;
  height: 16px;
  background: var(--accent-primary);
  border: 3px solid white;
  border-radius: 50%;
  box-shadow: var(--shadow-sm);
  opacity: 0;
  transition: var(--pzmp-transition);
}

.pz-music-player__progress-bar:hover .pz-music-player__progress-thumb,
.pz-music-player__progress-bar:active .pz-music-player__progress-thumb {
  opacity: 1;
}

/* ==================== 控制按钮区域 ==================== */
.pz-music-player__controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-bottom: 16px;
}

.pz-music-player__control-btn {
  background: none;
  border: none;
  cursor: var(--cursor-pointer);
  color: var(--text-secondary);
  transition: var(--pzmp-transition);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 8px;
  border-radius: 8px;
}

.pz-music-player__control-btn:hover {
  color: var(--accent-primary);
  background: var(--accent-light);
}

.pz-music-player__control-btn svg {
  width: 24px;
  height: 24px;
}

.pz-music-player__main-play-btn {
  width: 56px;
  height: 56px;
  background: var(--accent-primary);
  color: white;
  border-radius: 50%;
  box-shadow: var(--shadow-md);
}

.pz-music-player__main-play-btn:hover {
  background: var(--accent-hover);
  color: white;
  transform: scale(1.05);
}

.pz-music-player__main-play-btn svg {
  width: 28px;
  height: 28px;
}

/* ==================== 音量控制区域 ==================== */
.pz-music-player__volume-section {
  display: flex;
  align-items: center;
  gap: 12px;
}

.pz-music-player__volume-btn {
  background: none;
  border: none;
  cursor: var(--cursor-pointer);
  color: var(--text-secondary);
  padding: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--pzmp-transition);
}

.pz-music-player__volume-btn:hover {
  color: var(--accent-primary);
}

.pz-music-player__volume-btn.muted {
  color: var(--text-muted);
}

.pz-music-player__volume-btn svg {
  width: 20px;
  height: 20px;
}

.pz-music-player__volume-bar {
  flex: 1;
  max-width: 120px;
  height: 20px;
  display: flex;
  align-items: center;
  cursor: var(--cursor-pointer);
}

.pz-music-player__volume-track {
  width: 100%;
  height: 4px;
  background: var(--neutral-200);
  border-radius: 2px;
  overflow: hidden;
}

.pz-music-player__volume-fill {
  height: 100%;
  background: var(--accent-primary);
  border-radius: 2px;
  transition: width 0.1s linear;
}

/* ==================== 歌词区域 ==================== */
.pz-music-player__lyric-section {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  padding: 20px;
}

.pz-music-player__lyric-wrapper {
  height: 180px;
  overflow: hidden;
  position: relative;
  mask-image: linear-gradient(
    to bottom,
    transparent 0%,
    black 20%,
    black 80%,
    transparent 100%
  );
  -webkit-mask-image: linear-gradient(
    to bottom,
    transparent 0%,
    black 20%,
    black 80%,
    transparent 100%
  );
}

.pz-music-player__lyric-list {
  list-style: none;
  margin: 0;
  padding: 70px 0;
  text-align: center;
  transition: transform 0.3s ease;
}

.pz-music-player__lyric-item {
  padding: 10px 0;
  font-size: 1rem;
  color: var(--text-muted);
  transition: var(--pzmp-transition);
  line-height: 1.6;
}

.pz-music-player__lyric-item.active {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--accent-primary);
}

/* ==================== 播放列表区域 ==================== */
.pz-music-player__playlist-section {
  position: absolute;
  top: 0;
  right: 0;
  width: 320px;
  height: 100%;
  background: var(--bg-tertiary);
  border-left: 1px solid var(--border-color);
  transform: translateX(100%);
  transition: transform 0.3s ease;
  z-index: 10;
  display: flex;
  flex-direction: column;
}

.pz-music-player__playlist-section.show {
  transform: translateX(0);
}

.pz-music-player__playlist-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-color);
  background: var(--bg-secondary);
}

.pz-music-player__playlist-title {
  font-weight: 600;
  color: var(--text-primary);
}

.pz-music-player__playlist-count {
  font-size: 0.875rem;
  color: var(--text-muted);
}

.pz-music-player__playlist-close {
  background: none;
  border: none;
  cursor: var(--cursor-pointer);
  color: var(--text-muted);
  padding: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--pzmp-transition);
}

.pz-music-player__playlist-close:hover {
  color: var(--accent-primary);
}

.pz-music-player__playlist-close svg {
  width: 20px;
  height: 20px;
}

.pz-music-player__playlist-wrapper {
  flex: 1;
  overflow-y: auto;
  padding: 8px;
}

.pz-music-player__playlist {
  list-style: none;
  margin: 0;
  padding: 0;
}

.pz-music-player__playlist-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-radius: 8px;
  cursor: var(--cursor-pointer);
  transition: var(--pzmp-transition);
}

.pz-music-player__playlist-item:hover {
  background: var(--bg-secondary);
}

.pz-music-player__playlist-item.active {
  background: var(--accent-light);
}

.pz-music-player__playlist-item.active .pz-music-player__playlist-name {
  color: var(--accent-primary);
  font-weight: 600;
}

.pz-music-player__playlist-number {
  width: 24px;
  text-align: center;
  font-size: 0.875rem;
  color: var(--text-muted);
  font-variant-numeric: tabular-nums;
}

.pz-music-player__playlist-item.active .pz-music-player__playlist-number {
  color: var(--accent-primary);
  font-weight: 600;
}

.pz-music-player__playlist-info {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.pz-music-player__playlist-name {
  font-size: 0.9375rem;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.pz-music-player__playlist-artist {
  font-size: 0.8125rem;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.pz-music-player__playlist-duration {
  font-size: 0.8125rem;
  color: var(--text-muted);
  font-variant-numeric: tabular-nums;
}

/* 滚动条样式 */
.pz-music-player__playlist-wrapper::-webkit-scrollbar {
  width: 6px;
}

.pz-music-player__playlist-wrapper::-webkit-scrollbar-track {
  background: transparent;
}

.pz-music-player__playlist-wrapper::-webkit-scrollbar-thumb {
  background: var(--neutral-300);
  border-radius: 3px;
}

.pz-music-player__playlist-wrapper::-webkit-scrollbar-thumb:hover {
  background: var(--neutral-400);
}

/* ==================== 响应式设计 ==================== */
@media (max-width: 640px) {
  .pz-music-player {
    --pzmp-cover-size: 120px;
    --pzmp-spacing: 16px;
  }

  .pz-music-player__main {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .pz-music-player__cover-section {
    margin-bottom: 8px;
  }

  .pz-music-player__info-section {
    width: 100%;
  }

  .pz-music-player__song-name {
    font-size: 1.25rem;
  }

  .pz-music-player__controls {
    gap: 12px;
  }

  .pz-music-player__control-btn svg {
    width: 20px;
    height: 20px;
  }

  .pz-music-player__main-play-btn {
    width: 48px;
    height: 48px;
  }

  .pz-music-player__main-play-btn svg {
    width: 24px;
    height: 24px;
  }

  .pz-music-player__lyric-wrapper {
    height: 140px;
  }

  .pz-music-player__playlist-section {
    width: 100%;
  }
}

/* ==================== 深色模式支持 ==================== */
[data-theme="dark"] .pz-music-player {
  background: var(--neutral-800);
  border-color: var(--neutral-700);
}

[data-theme="dark"] .pz-music-player__main {
  background: linear-gradient(135deg, var(--neutral-800) 0%, var(--neutral-900) 100%);
}

[data-theme="dark"] .pz-music-player__lyric-section {
  background: var(--neutral-900);
  border-color: var(--neutral-700);
}

[data-theme="dark"] .pz-music-player__playlist-section {
  background: var(--neutral-800);
  border-color: var(--neutral-700);
}

[data-theme="dark"] .pz-music-player__playlist-header {
  background: var(--neutral-900);
  border-color: var(--neutral-700);
}

[data-theme="dark"] .pz-music-player__playlist-item:hover {
  background: var(--neutral-700);
}

[data-theme="dark"] .pz-music-player__playlist-item.active {
  background: rgba(138, 154, 111, 0.2);
}

[data-theme="dark"] .pz-music-player__progress-track,
[data-theme="dark"] .pz-music-player__volume-track {
  background: var(--neutral-700);
}

[data-theme="dark"] .pz-music-player__cover-btn {
  background: var(--pz-purple-600);
}

[data-theme="dark"] .pz-music-player__cover-btn:hover {
  background: var(--pz-purple-500);
}

[data-theme="dark"] .pz-music-player__main-play-btn {
  background: var(--pz-purple-600);
}

[data-theme="dark"] .pz-music-player__main-play-btn:hover {
  background: var(--pz-purple-500);
}

/* ==================== 加载动画 ==================== */
.pz-music-player__cover[src=""] {
  background: linear-gradient(90deg, var(--neutral-200) 25%, var(--neutral-300) 50%, var(--neutral-200) 75%);
  background-size: 200% 100%;
  animation: pzmp-loading 1.5s infinite;
}

@keyframes pzmp-loading {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* ==================== 禁用状态 ==================== */
.pz-music-player__control-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* ==================== 焦点样式 ==================== */
.pz-music-player__control-btn:focus-visible,
.pz-music-player__cover-btn:focus-visible,
.pz-music-player__volume-btn:focus-visible {
  outline: 2px solid var(--accent-primary);
  outline-offset: 2px;
}