/* 基础样式 */
:root {
    --primary-color: #6366f1;
    --primary-hover: #4f46e5;
    --secondary-color: #64748b;
    --success-color: #22c55e;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --bg-primary: #f8fafc;
    --bg-secondary: #ffffff;
    --border-color: #e2e8f0;
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
}

/* 重置样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background-color: #f3f4f6;
    color: var(--text-primary);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

/* 图标样式 */
.bi {
    display: inline-block;
    vertical-align: -0.125em;
    margin-right: 0.25rem;
}

/* 区块标题 */
.section-title {
    display: flex;
    align-items: center;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
}

.section-title .bi {
    color: var(--primary-color);
    font-size: 1rem;
}

/* 容器布局 */
.app-container {
    min-height: 100vh;
    padding: 1rem;
    display: flex;
    justify-content: center;
    align-items: flex-start;
}

.formatter-wrapper {
    width: 100%;
    max-width: 1200px;
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    overflow: hidden;
}

/* 头部样式 */
.app-header {
    padding: 1.25rem;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-hover));
    color: white;
    text-align: center;
}

.app-header h1 {
    font-size: 1.25rem;
    font-weight: 600;
    margin: 0;
    letter-spacing: 0.5px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.app-header .bi {
    font-size: 1.25rem;
}

/* 主体内容 */
.main-content {
    padding: 1.25rem;
}

/* 编辑器区域 */
.editor-section {
    background: white;
    border-radius: var(--radius-md);
    padding: 1rem;
    margin-bottom: 1rem;
    border: 1px solid var(--border-color);
}

.editor-section .section-title {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.editor-actions {
    display: flex;
    gap: 0.5rem;
}

.editor-actions button {
    padding: 0.5rem 1rem;
    border: 1px solid var(--border-color);
    background: white;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 0.875rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    color: var(--text-secondary);
}

.editor-actions button.primary {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.editor-actions button.primary .bi {
    color: white;
}

.editor-actions button:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.editor-actions button:hover .bi {
    color: var(--primary-color);
}

.editor-actions button.primary:hover {
    background: var(--primary-hover);
    color: white;
}

.editor-actions button.primary:hover .bi {
    color: white;
}

.editor-container {
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: hidden;
}

/* CodeMirror 自定义样式 */
.CodeMirror {
    height: 400px;
    font-family: 'Fira Code', monospace;
    font-size: 14px;
    line-height: 1.6;
}

/* 选项区域 */
.options-section {
    background: white;
    border-radius: var(--radius-md);
    padding: 1rem;
    margin-bottom: 1rem;
    border: 1px solid var(--border-color);
}

.options-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.option-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.option-group label {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.option-buttons {
    display: flex;
    gap: 0.5rem;
}

.option-buttons button {
    flex: 1;
    padding: 0.5rem;
    border: 1px solid var(--border-color);
    background: white;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

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

/* 信息区域 */
.info-section {
    background: white;
    padding: 1rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

.info-section ul {
    list-style: none;
    padding-left: 1.25rem;
}

.info-section li {
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    position: relative;
    font-size: 0.875rem;
}

.info-section li::before {
    content: '•';
    position: absolute;
    left: -1rem;
    color: var(--primary-color);
}

/* 响应式调整 */
@media (max-width: 768px) {
    .app-container {
        padding: 0.5rem;
    }

    .formatter-wrapper {
        border-radius: var(--radius-md);
    }

    .options-grid {
        grid-template-columns: 1fr;
    }

    .editor-section .section-title {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.75rem;
    }

    .editor-actions {
        width: 100%;
    }

    .editor-actions button {
        flex: 1;
    }
}

/* 暗色主题支持 */
@media (prefers-color-scheme: dark) {
    :root {
        --bg-primary: #0f172a;
        --bg-secondary: #1e293b;
        --text-primary: #f8fafc;
        --text-secondary: #94a3b8;
        --border-color: #334155;
    }

    body {
        background-color: #0f172a;
    }

    .formatter-wrapper,
    .editor-section,
    .options-section,
    .info-section {
        background: var(--bg-secondary);
        border-color: var(--border-color);
    }

    .editor-actions button,
    .option-buttons button {
        background: var(--bg-secondary);
        color: var(--text-secondary);
        border-color: var(--border-color);
    }

    .editor-actions button:hover {
        border-color: var(--primary-color);
        color: var(--primary-color);
    }

    .editor-actions button.primary {
        background: var(--primary-color);
        color: white;
    }

    .editor-actions button.primary:hover {
        background: var(--primary-hover);
        color: white;
    }

    /* CodeMirror暗色主题调整 */
    .CodeMirror {
        background: var(--bg-secondary) !important;
        color: var(--text-primary) !important;
    }

    .CodeMirror-gutters {
        background: var(--bg-secondary) !important;
        border-color: var(--border-color) !important;
    }

    .CodeMirror-linenumber {
        color: var(--text-secondary) !important;
    }
}