/* music-player.css */

/*
  CSS 变量定义:
  集中管理颜色、间距和圆角，方便快速调整主题。
*/
:root {
    --color-primary: #ff7b00;
    --color-primary-light: #ff912b;
    --color-text-primary: #333;
    --color-text-secondary: #888;
    --color-bg-card: #fff;
    --color-bg-subtle: #f0f2f5;
    --color-bg-selected: #fff4e8; /* 选中项的背景色 */
    --border-radius-card: 16px;
    --border-radius-item: 8px;
    --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.08);
    --spacing-md: 16px;
    --spacing-sm: 10px;
    --spacing-xs: 6px;
}

/*
  通用样式与布局
*/
body {
    background-color: var(--color-bg-subtle);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    color: var(--color-text-primary);
}

.music-player-wrapper {
    max-width: 900px;
    margin: var(--spacing-md) auto;
    padding: 0 var(--spacing-sm);
}

.music-player-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.card {
    background-color: var(--color-bg-card);
    border-radius: var(--border-radius-card);
    box-shadow: var(--shadow-card);
    padding: var(--spacing-md);
}

/*
  顶部搜索卡片
*/
.search-card {
    text-align: center;
}

.logo {
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 20px;
}

.logo i {
    font-size: 28px;
    color: var(--color-primary);
    margin-right: 10px;
}

.search-form {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.search-input-wrapper {
    flex: 1;
    display: flex;
    border-radius: var(--border-radius-item);
    overflow: hidden;
    height: 48px;
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.08);
}

.search-input {
    flex: 1;
    padding: 0 var(--spacing-md);
    border: none;
    outline: none;
    background-color: var(--color-bg-subtle);
    font-size: 15px;
}

.search-input::placeholder {
    color: var(--color-text-secondary);
}

.search-btn {
    width: 60px;
    border: none;
    background-color: var(--color-bg-subtle);
    border-left: 1px solid rgba(0,0,0,0.05);
    cursor: pointer;
    color: var(--color-primary);
    transition: background-color 0.2s ease;
}

.search-btn:hover {
    background-color: #e0e2e5;
}

.source-wrapper {
    flex-grow: 1;
    min-width: 150px;
}

.source-select {
    width: 100%;
    padding: 12px var(--spacing-md);
    background-color: var(--color-bg-subtle);
    color: var(--color-text-secondary);
    border: 1px solid rgba(0,0,0,0.05);
    border-radius: var(--border-radius-item);
    cursor: pointer;
    outline: none;
    appearance: none;
    background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="10" height="10" fill="%23999"><path d="M5 8.5L0 3.5h10L5 8.5z"/></svg>');
    background-repeat: no-repeat;
    background-position: right 15px center;
}

.history-search-container {
    margin-top: 25px;
    text-align: left;
}

.history-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.history-title {
    font-size: 16px;
    font-weight: 600;
}

.clear-history-btn {
    color: var(--color-text-secondary);
    font-size: 14px;
    cursor: pointer;
    transition: color 0.2s ease;
    background: none;
    border: none;
    padding: 0;
}

.clear-history-btn:hover {
    color: #ff4d4f;
}

.history-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.history-tag {
    background-color: var(--color-bg-subtle);
    color: var(--color-text-secondary);
    padding: 8px var(--spacing-md);
    border-radius: 20px;
    font-size: 14px;
    cursor: pointer;
    transition: background-color 0.2s ease;
}

.history-tag:hover {
    background-color: #e0e2e5;
}

/*
  搜索结果列表卡片
*/
.results-card .section-title {
    margin-top: 0;
}

.section-title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: 8px;
}

.search-results {
    max-height: 400px;
    overflow-y: auto;
    padding: 0 10px;
}

.song-item {
    display: flex;
    align-items: center;
    padding: 12px 10px;
    border-radius: var(--border-radius-item);
    margin-bottom: 8px;
    background-color: transparent;
    transition: background-color 0.2s ease;
    cursor: pointer;
    border: none;
    width: 100%;
    text-align: left;
}

.song-item:hover {
    background-color: #f6f6f6;
}

.song-item.active {
    background-color: var(--color-bg-selected);
    box-shadow: 0 2px 5px rgba(255, 123, 0, 0.1);
}

.song-item.active .song-name {
    color: var(--color-primary);
}

.song-index {
    width: 30px;
    text-align: center;
    color: var(--color-text-secondary);
    font-weight: 500;
}

.song-info {
    flex: 1;
    padding-left: 15px;
    overflow: hidden;
}

.song-name {
    font-size: 15px;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: 4px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.song-artist {
    font-size: 13px;
    color: var(--color-text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.song-actions {
    margin-left: auto;
}

.action-btn {
    background: none;
    border: none;
    color: #ccc;
    font-size: 16px;
    cursor: pointer;
    transition: color 0.2s ease;
    padding: 5px;
}

.action-btn:hover {
    color: #666;
}

/*
  播放器卡片
*/
.player-card {
    text-align: center;
}
.current-song {
    margin-bottom: 20px;
}
.current-cover-container {
    display: inline-block;
    position: relative;
    border-radius: 50%;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    animation: rotate 20s linear infinite paused;
    margin-bottom: 15px;
}
.current-cover {
    width: 200px;
    height: 200px;
    object-fit: cover;
    display: block;
    transition: transform 0.3s ease;
}
.current-cover-container.playing {
    animation-play-state: running;
}
@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}
.current-info h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 4px;
}
.current-info p {
    color: var(--color-text-secondary);
    font-size: 14px;
}
.player-controls {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: 20px;
}
.control-btn {
    background-color: var(--color-bg-subtle);
    border: none;
    border-radius: 50%;
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}
.control-btn:hover {
    background-color: #d4d4d4;
}
.control-btn.small {
    width: 40px;
    height: 40px;
    font-size: 16px;
}
.play-btn {
    width: 55px;
    height: 55px;
    font-size: 24px;
    background-color: var(--color-primary);
    color: #fff;
}
.play-btn:hover {
    background-color: var(--color-primary-light);
}
.progress-container {
    width: 100%;
    margin-bottom: 15px;
}
.progress-bar {
    width: 100%;
    height: 4px;
    background-color: #e0e0e0;
    border-radius: 2px;
    cursor: pointer;
    position: relative;
}
.progress-fill {
    height: 100%;
    background-color: var(--color-primary);
    border-radius: 2px;
    width: 0%;
}
.time-info {
    display: flex;
    justify-content: space-between;
    font-size: 12px;
    color: var(--color-text-secondary);
    margin-top: 5px;
}
.quality-container, .volume-container, .download-container {
    width: 100%;
    padding: 10px var(--spacing-md);
    background-color: var(--color-bg-subtle);
    border-radius: var(--border-radius-item);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
}
.quality-container {
    justify-content: space-between;
}
.quality-select {
    background-color: var(--color-bg-card);
    border: 1px solid rgba(0,0,0,0.05);
    border-radius: 6px;
    color: var(--color-text-primary);
    padding: 6px var(--spacing-sm);
    outline: none;
    cursor: pointer;
    font-size: 13px;
}
.volume-container {
    gap: 8px;
}
.volume-icon {
    color: var(--color-text-secondary);
    font-size: 16px;
}
.volume-slider {
    flex: 1;
    height: 3px;
    background: #e0e0e0;
    border-radius: 2px;
    outline: none;
    -webkit-appearance: none;
}
.volume-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 12px;
    height: 12px;
    background: var(--color-primary);
    border-radius: 50%;
    cursor: pointer;
}
.download-btn {
    width: 100%;
    padding: 10px;
    background-color: var(--color-primary);
    color: #fff;
    border: none;
    border-radius: var(--border-radius-item);
    cursor: pointer;
    transition: background-color 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}
.download-btn:hover:not(:disabled) {
    background-color: var(--color-primary-light);
}
.download-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    background-color: #e0e0e0;
    color: #999;
}

/*
  加载和空状态
*/
.loading, .error, .empty-state {
    text-align: center;
    padding: 30px 20px;
    color: var(--color-text-secondary);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    min-height: 150px;
}
.loading i, .error i, .empty-state i {
    font-size: 40px;
    margin-bottom: 10px;
    display: block;
}
.loading i {
    animation: spin 1s linear infinite;
    color: var(--color-primary);
}
@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}
.error i {
    color: #ff4d4f;
}
.empty-state i {
    color: #ccc;
}

/*
  响应式设计
*/
@media (max-width: 768px) {
    .search-form {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    .search-input-wrapper {
        width: 100%;
        order: 1;
    }
    .source-wrapper {
        width: 100%;
        order: 2;
    }
    .search-btn {
        width: 50px;
    }
    .current-cover {
        width: 150px;
        height: 150px;
    }
}

/*
  使用说明样式
*/
.usage-note-container {
    margin-top: 20px;
    margin-bottom: 20px;
    padding: 15px;
    border-radius: 12px;
    background: linear-gradient(135deg, #f0f2f5, #e6e8eb);
    box-shadow: inset 0 2px 5px rgba(0,0,0,0.05);
    border: 1px solid #e0e2e5;
    display: flex;
    justify-content: center;
    align-items: center;
}

.usage-note-text {
    color: #666;
    font-size: 13px;
    font-weight: 500;
    text-align: center;
    line-height: 1.5;
    margin: 0;
}