/* 基础变量 */
:root {
    --bg-primary: #1e1e1e;
    --bg-secondary: #252526;
    --bg-tertiary: #2d2d30;
    --bg-hover: #3e3e42;
    --text-primary: #d4d4d4;
    --text-secondary: #858585;
    --accent-color: #007acc;
    --accent-hover: #0098ff;
    --border-color: #3e3e42;
    --success-color: #4ec9b0;
    --warning-color: #ce9178;
    --error-color: #f44747;
    --toolbar-height: 50px;
    --statusbar-height: 28px;
    --panel-header-height: 40px;
    --font-mono: 'Consolas', 'Monaco', 'Courier New', monospace;
    --font-ui: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

/* 浅色主题 */
[data-theme="light"] {
    --bg-primary: #ffffff;
    --bg-secondary: #f3f3f3;
    --bg-tertiary: #e8e8e8;
    --bg-hover: #ddd;
    --text-primary: #333;
    --text-secondary: #666;
    --border-color: #ddd;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body {
    height: 100%;
    font-family: var(--font-ui);
    background: var(--bg-primary);
    color: var(--text-primary);
    overflow: hidden;
}

.app {
    display: flex;
    flex-direction: column;
    height: 100vh;
}

/* 工具栏 */
.toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--toolbar-height);
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    padding: 0 16px;
    gap: 16px;
}

.toolbar-left, .toolbar-center, .toolbar-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

.toolbar-center {
    flex: 1;
    justify-content: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
}

.logo-icon {
    font-size: 22px;
}

/* 按钮样式 */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    border: none;
    border-radius: 4px;
    background: var(--bg-tertiary);
    color: var(--text-primary);
    font-size: 13px;
    cursor: pointer;
    transition: all 0.2s ease;
    font-family: var(--font-ui);
}

.btn:hover {
    background: var(--bg-hover);
    transform: translateY(-1px);
}

.btn-primary {
    background: var(--accent-color);
    color: white;
}

.btn-primary:hover {
    background: var(--accent-hover);
}

.btn-danger {
    background: transparent;
    color: var(--error-color);
    border: 1px solid var(--error-color);
}

.btn-danger:hover {
    background: var(--error-color);
    color: white;
}

.btn-icon {
    width: 32px;
    height: 32px;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
    transition: all 0.2s;
}

.btn-icon:hover {
    background: var(--bg-hover);
}

/* 代码片段下拉菜单 */
.snippets-dropdown {
    position: relative;
}

.snippets-menu {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 4px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    min-width: 160px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.3);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.2s ease;
    z-index: 1000;
    max-height: 300px;
    overflow-y: auto;
}

.snippets-menu.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.snippet-item {
    padding: 10px 16px;
    cursor: pointer;
    font-size: 13px;
    border-bottom: 1px solid var(--border-color);
    transition: all 0.15s;
}

.snippet-item:last-child {
    border-bottom: none;
}

.snippet-item:hover {
    background: var(--bg-hover);
    padding-left: 20px;
}

/* 主容器 */
.main-container {
    display: flex;
    flex: 1;
    overflow: hidden;
}

/* 控件面板 */
.widget-panel {
    width: 220px;
    min-width: 220px;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    transition: all 0.3s ease;
}

.widget-panel.collapsed {
    width: 40px;
    min-width: 40px;
}

.widget-panel.collapsed .widget-content,
.widget-panel.collapsed .widget-title {
    display: none;
}

.widget-panel.collapsed #toggleWidget {
    transform: rotate(180deg);
}

.widget-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px;
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-tertiary);
}

.widget-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    white-space: nowrap;
}

.widget-content {
    flex: 1;
    overflow-y: auto;
    padding: 8px;
}

/* 控件分类 */
.widget-category {
    margin-bottom: 8px;
}

.category-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 12px;
    background: var(--bg-tertiary);
    border-radius: 6px;
    cursor: pointer;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-primary);
    transition: all 0.2s;
    user-select: none;
}

.category-header:hover {
    background: var(--bg-hover);
}

.category-header.collapsed .category-arrow {
    transform: rotate(-90deg);
}

.category-arrow {
    font-size: 10px;
    transition: transform 0.2s;
    color: var(--text-secondary);
}

/* 控件项 */
.category-items {
    padding: 4px 0;
    overflow: hidden;
    transition: all 0.3s ease;
}

.category-items.collapsed {
    max-height: 0;
    padding: 0;
    opacity: 0;
}

.widget-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 12px;
    margin: 2px 0;
    border-radius: 4px;
    cursor: pointer;
    font-size: 12px;
    color: var(--text-secondary);
    transition: all 0.15s;
}

.widget-item:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
    transform: translateX(4px);
}

.widget-icon {
    font-size: 14px;
    width: 20px;
    text-align: center;
}

/* 子分类标题 */
.widget-subcategory {
    padding: 8px 12px;
    margin-top: 8px;
    font-size: 11px;
    font-weight: 600;
    color: var(--accent-color);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-left: 2px solid var(--accent-color);
    background: var(--bg-primary);
}

/* 面板通用样式 */
.editor-panel, .preview-panel {
    display: flex;
    flex-direction: column;
    background: var(--bg-primary);
}

.editor-panel {
    width: 50%;
    min-width: 200px;
}

.preview-panel {
    flex: 1;
    min-width: 200px;
}

.panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--panel-header-height);
    padding: 0 16px;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
}

.panel-title {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-primary);
}

/* 标签页 */
.tabs {
    display: flex;
    gap: 4px;
}

.tab {
    padding: 6px 14px;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    font-size: 12px;
    cursor: pointer;
    border-radius: 4px;
    transition: all 0.2s;
}

.tab:hover {
    color: var(--text-primary);
    background: var(--bg-hover);
}

.tab.active {
    color: var(--text-primary);
    background: var(--accent-color);
}

/* 编辑器容器 */
.editor-container {
    flex: 1;
    position: relative;
    overflow: hidden;
}

.editor {
    width: 100%;
    height: 100%;
}

/* 拖拽分隔条 */
.resizer {
    width: 6px;
    background: var(--bg-secondary);
    border-left: 1px solid var(--border-color);
    border-right: 1px solid var(--border-color);
    cursor: col-resize;
    transition: background 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.resizer:hover {
    background: var(--accent-color);
}

.resizer::before {
    content: '';
    width: 2px;
    height: 20px;
    background: var(--text-secondary);
    border-radius: 1px;
}

/* 预览容器 */
.preview-container {
    flex: 1;
    position: relative;
    background: white;
}

#preview {
    width: 100%;
    height: 100%;
    border: none;
    background: white;
}

.preview-actions {
    display: flex;
    gap: 4px;
}

/* 控制台面板 */
.console-panel {
    height: 120px;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
}

.console-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 6px 12px;
    background: var(--bg-tertiary);
    border-bottom: 1px solid var(--border-color);
    font-size: 12px;
    color: var(--text-secondary);
}

.console-content {
    flex: 1;
    overflow-y: auto;
    padding: 8px 12px;
    font-family: var(--font-mono);
    font-size: 12px;
    line-height: 1.5;
}

.console-line {
    padding: 2px 0;
    border-bottom: 1px solid var(--border-color);
}

.console-line:last-child {
    border-bottom: none;
}

.console-log { color: var(--text-primary); }
.console-info { color: var(--accent-color); }
.console-warn { color: var(--warning-color); }
.console-error { color: var(--error-color); }

/* 状态栏 */
.statusbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--statusbar-height);
    padding: 0 16px;
    background: var(--accent-color);
    color: white;
    font-size: 12px;
}

.status-right {
    display: flex;
    gap: 12px;
}

.separator {
    opacity: 0.5;
}

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--bg-hover);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}

/* Monaco Editor 自定义 */
.monaco-editor {
    padding-top: 8px;
}

/* 响应式 */
@media (max-width: 768px) {
    .toolbar {
        flex-wrap: wrap;
        height: auto;
        padding: 8px;
    }

    .toolbar-center {
        order: 3;
        width: 100%;
        justify-content: flex-start;
        margin-top: 8px;
    }

    .main-container {
        flex-direction: column;
    }

    .editor-panel, .preview-panel {
        width: 100% !important;
        height: 50%;
    }

    .resizer {
        width: 100%;
        height: 6px;
        cursor: row-resize;
    }

    .resizer::before {
        width: 20px;
        height: 2px;
    }
}

/* 动画 */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.fade-in {
    animation: fadeIn 0.3s ease;
}

/* 加载状态 */
.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: var(--text-secondary);
    font-size: 14px;
}

.loading::after {
    content: '';
    width: 20px;
    height: 20px;
    margin-left: 10px;
    border: 2px solid var(--border-color);
    border-top-color: var(--accent-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}