/* panels.css */
/* --- 侧滑面板 (通用样式) --- */
.playlist-panel, .info-panel, .shortcut-panel, .download-panel {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    width: 340px;
    max-width: 90%;
    background-color: var(--panel-bg);
    box-shadow: -5px 0 15px rgba(0,0,0,0.2);
    z-index: 2000;
    transform: translateX(100%);
    visibility: hidden;
    transition: transform 0.4s cubic-bezier(0.25, 0.8, 0.25, 1), visibility 0s 0.4s;
    display: flex;
    flex-direction: column;
    padding-bottom: var(--controls-height);
}

.playlist-panel.active, .info-panel.active, .shortcut-panel.active, .download-panel.active {
    transform: translateX(0);
    visibility: visible;
    transition: transform 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.panel-header { display: flex; justify-content: space-between; align-items: center; padding: 16px 20px; flex-shrink: 0; border-bottom: 1px solid var(--highlight-bg); }
.panel-header h2 { font-size: 16px; font-weight: 700; color: var(--text-primary); }
.panel-header .control-btn:hover { background-color: var(--highlight-bg); border-radius: 50%;}

/* Panel Search Input */
.panel-search-container {
    padding: 16px 20px 8px;
    flex-shrink: 0;
}
.panel-search {
    width: 100%;
    background-color: var(--highlight-bg);
    border: 1px solid var(--slider-track-color);
    border-radius: 4px;
    color: var(--text-primary);
    padding: 8px 12px;
    font-size: 14px;
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s;
}
.panel-search:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(29, 185, 84, 0.3);
}
.panel-search::placeholder {
    color: var(--text-secondary);
}

/* --- 播放列表项目样式 (已修改) --- */
.playlist { list-style: none; overflow-y: auto; padding: 8px 8px 16px 20px; flex-grow: 1; scrollbar-width: thin; scrollbar-color: var(--slider-track-color) transparent; }
.playlist-item { display: flex; align-items: center; justify-content: space-between; padding: 10px; border-radius: 6px; cursor: pointer; transition: background-color 0.2s; margin-bottom: 8px; }
.playlist-item-main-content { display: flex; align-items: center; overflow: hidden; flex-grow: 1; }
.playlist-item:hover, .playlist-item.active { background-color: var(--highlight-bg); }
.playlist-item.active .playlist-title { color: var(--primary-color); }
.playlist-icon { width: 40px; height: 40px; display: flex; align-items: center; justify-content: center; margin-right: 15px; font-size: 20px; color: var(--text-secondary); flex-shrink: 0; }
.playlist-details { overflow: hidden; }
.playlist-title { font-size: 14px; font-weight: 500; white-space: nowrap; text-overflow: ellipsis; overflow: hidden; }
.playlist-artist { font-size: 12px; color: var(--text-secondary); }
.no-results-message { color: var(--text-secondary); padding: 20px; text-align: center; display: none; /* 默认隐藏，由JS控制显示 */ }
.playlist::-webkit-scrollbar { width: 8px; }
.playlist::-webkit-scrollbar-track { background-color: transparent; }
.playlist::-webkit-scrollbar-thumb { background-color: var(--slider-track-color); border-radius: 4px; }
.playlist::-webkit-scrollbar-thumb:hover { background-color: var(--primary-color); }

.playlist-item.hidden {
    display: none;
}

/* --- 新增：播放列表下载按钮样式 --- */
.playlist-download-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    margin-left: 10px;
    transition: color 0.2s, background-color 0.2s;
}
.playlist-download-btn:hover {
    color: var(--text-primary);
    background-color: rgba(255, 255, 255, 0.1);
}
.playlist-download-btn svg {
    width: 20px;
    height: 20px;
    fill: currentColor;
}
.playlist-download-btn .spinner-icon,
.playlist-download-btn .cached-icon {
    display: none;
}
.playlist-download-btn.downloading .download-icon,
.playlist-download-btn.cached .download-icon {
    display: none;
}
.playlist-download-btn.downloading .spinner-icon {
    display: block;
    animation: spin 1s linear infinite;
}
.playlist-download-btn.cached .cached-icon {
    display: block;
}
.playlist-download-btn.cached {
    color: var(--primary-color);
    cursor: default;
    pointer-events: none;
}
.playlist-download-btn.hidden {
    display: none;
}
/* --- Info Panel Content --- */
.info-content { padding: 0 20px 20px; flex-grow: 1; overflow-y: auto; line-height: 1.7; color: var(--text-secondary); scrollbar-width: thin; scrollbar-color: var(--slider-track-color) transparent; }
.info-content h3 { font-size: 15px; font-weight: 700; color: var(--text-primary); margin: 20px 0 12px 0; padding-bottom: 8px; border-bottom: 1px solid var(--highlight-bg); }
.info-content p { font-size: 13px; margin-bottom: 10px; }
.info-content .statement-title { font-weight: bold; color: var(--text-primary); }
.info-content a { color: var(--primary-color); text-decoration: none; word-break: break-all; transition: color 0.2s ease; }
.info-content a:hover { text-decoration: underline; }
.info-content ul { list-style-position: inside; padding-left: 5px; font-size: 13px; }
.info-content ul li { margin-bottom: 5px; }
.info-content .inline-icon {
    width: 1em;
    height: 1em;
    vertical-align: -0.125em;
}
.info-content::-webkit-scrollbar { width: 8px; } .info-content::-webkit-scrollbar-track { background-color: transparent; } .info-content::-webkit-scrollbar-thumb { background-color: var(--slider-track-color); border-radius: 4px; } .info-content::-webkit-scrollbar-thumb:hover { background-color: var(--primary-color); }

/* --- Shortcut Panel List --- */
.shortcut-list { list-style: none; overflow-y: auto; padding: 8px 8px 16px 20px; flex-grow: 1; scrollbar-width: thin; scrollbar-color: var(--slider-track-color) transparent; }
.shortcut-item { display: flex; align-items: center; padding: 12px 10px; border-bottom: 1px solid var(--highlight-bg); transition: background-color 0.2s; } .shortcut-item:last-child { border-bottom: none; } .shortcut-item:hover { background-color: var(--highlight-bg); }
.action-label { flex-grow: 1; font-size: 14px; color: var(--text-secondary); }
.shortcut-display { display: flex; align-items: center; gap: 6px; margin: 0 15px; }
.shortcut-display kbd { background-color: #3a3a3a; border: 1px solid #535353; border-radius: 4px; padding: 4px 8px; font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, Courier, monospace; font-size: 13px; font-weight: 500; color: var(--text-primary); box-shadow: 0 2px 0 #282828; }
.shortcut-display .placeholder { color: var(--text-secondary); font-style: italic; font-size: 13px; }
.shortcut-item .actions { display: flex; gap: 8px; }
.shortcut-item .actions button { background: none; border: 1px solid var(--text-secondary); color: var(--text-secondary); padding: 5px 10px; border-radius: 4px; cursor: pointer; font-size: 12px; transition: all 0.2s ease; }
.shortcut-item .actions button:hover { background-color: var(--highlight-bg); color: var(--text-primary); border-color: var(--text-primary); } .shortcut-item .actions .set-btn:hover { border-color: var(--primary-color); color: var(--primary-color); }
.shortcut-list::-webkit-scrollbar { width: 8px; }
.shortcut-list::-webkit-scrollbar-track { background-color: transparent; }
.shortcut-list::-webkit-scrollbar-thumb { background-color: var(--slider-track-color); border-radius: 4px; }
.shortcut-list::-webkit-scrollbar-thumb:hover { background-color: var(--primary-color); }

/* --- 下载面板专属样式 --- */
.download-panel-content {
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    flex-grow: 1;
    overflow: hidden; /* 由内部元素控制滚动 */
}

/* 引导视图（恢复的完整样式）*/
.setup-view {
    display: flex;
    flex-direction: column;
    gap: 20px;
    overflow-y: auto;
    padding-right: 10px; /* 为滚动条留出空间 */
    /* 【修正】添加统一的滚动条样式 */
    scrollbar-width: thin;
    scrollbar-color: var(--slider-track-color) transparent;
}
/* 【修正】添加统一的滚动条样式 for Webkit */
.setup-view::-webkit-scrollbar { width: 8px; }
.setup-view::-webkit-scrollbar-track { background-color: transparent; }
.setup-view::-webkit-scrollbar-thumb { background-color: var(--slider-track-color); border-radius: 4px; }
.setup-view::-webkit-scrollbar-thumb:hover { background-color: var(--primary-color); }

.setup-disclaimer {
    padding: 12px;
    border-radius: 6px;
    font-size: 13px;
    line-height: 1.6;
    background-color: rgba(229, 20, 20, 0.1);
    border: 1px solid rgba(229, 20, 20, 0.3);
    color: var(--text-secondary);
}
.setup-disclaimer strong {
    color: #e51414;
}
.setup-header { text-align: center; padding-bottom: 10px; border-bottom: 1px solid var(--highlight-bg); }
.setup-header h3 { color: var(--text-primary); margin-bottom: 8px; }
.setup-header p { font-size: 14px; color: var(--text-secondary); }
.setup-step { display: flex; gap: 15px; align-items: flex-start; }
.step-number { flex-shrink: 0; width: 30px; height: 30px; border-radius: 50%; background-color: var(--highlight-bg); color: var(--text-primary); display: flex; align-items: center; justify-content: center; font-weight: bold; font-size: 16px; }
.step-content h4 { margin-bottom: 8px; font-size: 15px; color: var(--text-primary); }
.step-content p { font-size: 13px; line-height: 1.6; color: var(--text-secondary); margin-bottom: 12px; }
.step-content small { font-size: 12px; color: var(--slider-track-color); }
.action-link { display: inline-flex; align-items: center; gap: 8px; background-color: var(--primary-color); color: #000; padding: 8px 16px; border-radius: 20px; text-decoration: none; font-weight: bold; font-size: 14px; transition: background-color 0.2s ease; margin-bottom: 8px; }
.action-link:hover { background-color: #1ed760; }
.action-link svg { width: 16px; height: 16px; fill: currentColor; }
.code-block { position: relative; background-color: var(--bg-color); border: 1px solid var(--highlight-bg); border-radius: 6px; padding: 12px 16px; margin-bottom: 8px; }
.code-block pre { margin: 0; white-space: pre-wrap; word-break: break-all; }
.code-block code { font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, Courier, monospace; font-size: 14px; color: var(--text-primary); }
.copy-btn { position: absolute; top: 8px; right: 8px; background: none; border: none; color: var(--text-secondary); cursor: pointer; padding: 4px; border-radius: 4px; transition: color 0.2s, background-color 0.2s; }
.copy-btn:hover { color: var(--text-primary); background-color: var(--highlight-bg); }
.copy-btn .check-icon { display: none; }
.copy-btn.copied .copy-icon { display: none; }
.copy-btn.copied .check-icon { display: block; color: var(--primary-color); }
.copy-btn svg { width: 18px; height: 18px; fill: currentColor; }
.setup-footer { text-align: center; margin-top: 10px; }
.connection-status-line { display: flex; align-items: center; justify-content: center; gap: 8px; color: var(--primary-color); font-size: 14px; }
.spinner { width: 16px; height: 16px; border: 2px solid currentColor; border-right-color: transparent; border-radius: 50%; animation: spin 1s linear infinite; }

/* 主交互视图（采用新的统一布局） */
.downloader-view {
    display: flex;
    flex-direction: column;
    gap: 16px;
    flex-grow: 1;
    overflow: hidden; /* 防止父容器滚动 */
}
.downloader-input-area {
    display: flex;
    flex-direction: column;
    gap: 16px;
    flex-shrink: 0; /* 防止输入区域被压缩 */
}
.downloader-view textarea {
    min-height: 80px;
    height: 80px;
    flex-grow: 0; /* 不让文本域自动伸展 */
    background-color: var(--highlight-bg);
    border: 1px solid var(--slider-track-color);
    border-radius: 6px;
    color: var(--text-primary);
    padding: 12px;
    font-size: 14px;
    font-family: var(--font-family);
    resize: vertical;
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s;
}
.downloader-view textarea:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(29, 185, 84, 0.3);
}
.download-actions-container {
    display: flex;
    gap: 10px;
    width: 100%;
}
.download-actions-container .action-btn {
    flex-grow: 1; /* 让按钮平分空间 */
}
.download-status { margin-top: 10px; padding: 12px; border-radius: 6px; font-size: 14px; line-height: 1.6; background-color: var(--highlight-bg); color: var(--text-secondary); display: none; white-space: pre-wrap; word-wrap: break-word; }
.download-status.success { background-color: rgba(29, 185, 84, 0.2); color: #1ed760; }
.download-status.error { background-color: rgba(229, 20, 20, 0.2); color: #e51414; }

/* 搜索/下载结果列表容器样式 */
.search-results-container {
    flex-grow: 1; /* 占据剩余空间 */
    overflow-y: auto; /* 允许自身滚动 */
    border-top: 1px solid var(--highlight-bg);
    margin-top: 8px;
    padding-top: 8px;
    scrollbar-width: thin;
    scrollbar-color: var(--slider-track-color) transparent;
}
.search-results-container::-webkit-scrollbar { width: 8px; }
.search-results-container::-webkit-scrollbar-track { background-color: transparent; }
.search-results-container::-webkit-scrollbar-thumb { background-color: var(--slider-track-color); border-radius: 4px; }
.search-results-container::-webkit-scrollbar-thumb:hover { background-color: var(--primary-color); }
#search-results-list {
    padding: 8px; /* 调整内边距以适应新容器 */
}
#search-results-list:empty::before {
    content: '搜索或下载结果将显示在这里...';
    display: block;
    text-align: center;
    color: var(--text-secondary);
    padding: 40px 20px;
    font-style: italic;
}

/* 通用动作按钮样式 */
.action-btn { background-color: var(--primary-color); color: #000; font-weight: bold; border: none; padding: 12px 20px; border-radius: 50px; cursor: pointer; font-size: 15px; text-align: center; transition: background-color 0.2s ease, transform 0.1s ease; display: flex; justify-content: center; align-items: center; position: relative; flex-shrink: 0; }
.action-btn:hover:not(:disabled) { background-color: #1ed760; transform: scale(1.03); }
.action-btn:disabled { background-color: var(--slider-track-color); color: var(--text-secondary); cursor: not-allowed; transform: scale(1); }

/* 加载动画 for action-btn */
.action-btn .btn-loader { display: none; width: 20px; height: 20px; border: 3px solid rgba(0, 0, 0, 0.3); border-radius: 50%; border-top-color: #000; animation: spin 1s ease-in-out infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.action-btn.loading .btn-text { display: none; }
.action-btn.loading .btn-loader { display: block; }