.main {
    padding-top: 60px;
}

/* 上传区域 */
.file-upload {
    background: var(--bg-color-50);
    border: 2px dashed var(--border-color);
    border-radius: 12px;
    padding: 60px 20px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-bottom: 20px;
}

.file-upload:hover {
    border-color: var(--primary-color);
    background: var(--bg-color);
}

.file-upload.drag-over {
    border-color: var(--primary-color);
    background: var(--primary-color-10);
}

.file-upload p {
    font-size: 1.1rem;
    color: var(--text-color);
    margin: 0 0 8px 0;
}

.file-upload small {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* 编辑器和预览区域 */
.editor-preview-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 20px;
}

/* 代码编辑器面板 */
.editor-panel {
    background: var(--bg-color-50);
    border-radius: 12px;
    border: 1px solid var(--border-color-10);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.editor-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color-10);
}

.editor-header h2 {
    font-size: 1.1rem;
    margin: 0;
    color: var(--text-color);
}

.editor-stats {
    display: flex;
    gap: 16px;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.editor-toolbar {
    display: flex;
    gap: 8px;
    padding: 12px 16px;
    background: var(--bg-color);
    border-bottom: 1px solid var(--border-color-10);
}

.editor-toolbar .btn {
    padding: 6px 12px;
    font-size: 0.85rem;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s ease;
    background: var(--bg-secondary);
    color: var(--text-color);
    white-space: nowrap;
}

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

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

.editor-toolbar .btn-primary:hover {
    background: var(--secondary-color);
}

.svg-editor {
    flex: 1;
    width: 100%;
    min-height: 500px;
    padding: 16px;
    border: none;
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    font-size: 14px;
    line-height: 1.6;
    resize: none;
    background: var(--bg-color);
    color: var(--text-color);
    outline: none;
}

/* 预览面板 */
.preview-panel {
    background: var(--bg-color-50);
    border-radius: 12px;
    border: 1px solid var(--border-color-10);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    position: relative;
}

.preview-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color-10);
}

.preview-header h2 {
    font-size: 1.1rem;
    margin: 0;
    color: var(--text-color);
}

.preview-controls {
    display: flex;
    align-items: center;
    gap: 12px;
}

.preview-info {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-right: 8px;
}

.crop-btn {
    padding: 6px 12px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.85rem;
    transition: all 0.2s ease;
    background: var(--bg-secondary);
    color: var(--text-color);
    white-space: nowrap;
}

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

.bg-toggle {
    display: flex;
    gap: 6px;
}

.bg-option {
    width: 24px;
    height: 24px;
    border-radius: 4px;
    cursor: pointer;
    border: 2px solid var(--border-color);
    transition: all 0.2s ease;
}

.bg-option:hover {
    border-color: var(--primary-color);
    transform: scale(1.05);
}

.bg-option.active {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 1px var(--primary-color);
}

.bg-checker {
    background: repeating-conic-gradient(#d0d0d0 0% 25%, #f5f5f5 0% 50%) 50% / 6px 6px;
}

.bg-white {
    background: #ffffff;
    box-shadow: inset 0 0 0 1px rgba(0,0,0,0.1);
}

.bg-black {
    background: #000000;
}

.svg-preview {
    flex: 1;
    min-height: 500px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: auto;
    padding: 20px;
}

.svg-preview[data-bg="checker"] {
    background: repeating-conic-gradient(#e8e8e8 0% 25%, #ffffff 0% 50%) 50% / 20px 20px;
}

.svg-preview[data-bg="white"] {
    background: #ffffff;
}

.svg-preview[data-bg="black"] {
    background: #000000;
}

.svg-preview svg {
    max-width: 100%;
    max-height: 100%;
    cursor: pointer;
    box-shadow: 0 0 0 1px rgba(51, 102, 255, 0.3);
}

.svg-preview svg:hover {
    box-shadow: 0 0 0 1px rgba(51, 102, 255, 0.5);
}

.svg-preview svg * {
    cursor: pointer;
}

.svg-preview svg *.selected {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

.preview-empty {
    color: var(--text-secondary);
    text-align: center;
    padding: 40px;
}

/* 气泡编辑器 */
.element-editor {
    position: absolute;
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 16px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    z-index: 1000;
    min-width: 280px;
    display: none;
}

.element-editor.show {
    display: block;
}

.editor-header-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border-color-10);
}

.editor-title {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-color);
    margin: 0;
}

.close-btn {
    width: 24px;
    height: 24px;
    border: none;
    background: var(--bg-secondary);
    color: var(--text-color);
    border-radius: 4px;
    cursor: pointer;
    font-size: 1.2rem;
    line-height: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.close-btn:hover {
    background: var(--red-color);
    color: white;
}

.editor-group {
    margin-bottom: 12px;
}

.editor-group:last-child {
    margin-bottom: 0;
}

.editor-label {
    display: block;
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

.editor-row {
    display: flex;
    gap: 8px;
    align-items: center;
}

.color-input {
    width: 48px;
    height: 32px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    cursor: pointer;
    padding: 2px;
}

.color-input:hover {
    border-color: var(--primary-color);
}

.text-input {
    flex: 1;
    padding: 6px 10px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background: var(--bg-secondary);
    color: var(--text-color);
    font-size: 0.85rem;
}

.text-input:focus {
    outline: none;
    border-color: var(--primary-color);
}

.slider-input {
    flex: 1;
}

.slider-value {
    min-width: 40px;
    text-align: center;
    font-size: 0.85rem;
    color: var(--text-color);
    font-family: 'Consolas', 'Monaco', monospace;
}

.gradient-type {
    display: flex;
    gap: 6px;
    margin-bottom: 8px;
}

.gradient-type button {
    flex: 1;
    padding: 6px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background: var(--bg-secondary);
    color: var(--text-color);
    font-size: 0.85rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.gradient-type button:hover {
    border-color: var(--primary-color);
}

.gradient-type button.active {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.gradient-stops {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.gradient-stop {
    display: flex;
    gap: 8px;
    align-items: center;
}

.gradient-stop .color-input {
    width: 40px;
    height: 28px;
}

.gradient-stop .text-input {
    width: 60px;
}

.gradient-stop button {
    padding: 4px 8px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background: var(--bg-secondary);
    color: var(--text-color);
    font-size: 0.75rem;
    cursor: pointer;
}

.gradient-stop button:hover {
    background: var(--red-color);
    color: white;
    border-color: var(--red-color);
}

.add-stop-btn {
    padding: 6px 12px;
    border: 1px dashed var(--border-color);
    border-radius: 6px;
    background: transparent;
    color: var(--text-secondary);
    font-size: 0.85rem;
    cursor: pointer;
    width: 100%;
    margin-top: 4px;
}

.add-stop-btn:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

/* 响应式 */
@media (max-width: 1024px) {
    .editor-preview-container {
        grid-template-columns: 1fr;
    }
    
    .editor-toolbar {
        flex-wrap: wrap;
    }
    
    .preview-controls {
        flex-wrap: wrap;
    }
}

/* 导出下拉菜单 */
.export-dropdown {
    position: relative;
}

.export-dropdown .btn-success {
    background: var(--green-color, #10b981);
    color: white;
}

.export-dropdown .btn-success:hover {
    background: var(--green-hover, #059669);
}

.export-menu {
    position: absolute;
    top: 100%;
    left: 0;
    margin-top: 4px;
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    min-width: 160px;
    z-index: 1000;
    display: none;
    overflow: hidden;
}

.export-menu.show {
    display: block;
}

.export-menu button {
    display: block;
    width: 100%;
    padding: 10px 16px;
    border: none;
    background: transparent;
    color: var(--text-color);
    text-align: left;
    cursor: pointer;
    font-size: 0.9rem;
    transition: background 0.2s ease;
}

.export-menu button:hover {
    background: var(--hover-bg);
}

.export-menu button:active {
    background: var(--primary-color-10);
}