/* 全局样式 */
:root {
    --primary-color: #007AFF;
    --background-color: #F5F5F7;
    --card-background: #FFFFFF;
    --text-color: #1D1D1F;
    --border-radius: 12px;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

body {
    margin: 0;
    padding: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
}

/* 顶部标题样式 */
header {
    background-color: var(--card-background);
    padding: 1.5rem;
    text-align: center;
    box-shadow: var(--shadow);
}

h1 {
    margin: 0;
    font-size: 1.8rem;
    font-weight: 500;
}

/* 主要内容区样式 */
.container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    padding: 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

/* 输入输出区域共同样式 */
.input-section,
.output-section {
    background-color: var(--card-background);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    box-shadow: var(--shadow);
}

/* 文本框样式 */
.input-group {
    margin-bottom: 1rem;
}

.input-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-color);
}

.input-textarea {
    width: 100%;
    height: 120px;
    padding: 1rem;
    border: 1px solid #E5E5E5;
    border-radius: var(--border-radius);
    font-family: monospace;
    font-size: 0.9rem;
    resize: vertical;
}

.input-textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(0, 122, 255, 0.1);
}

/* SQL输出区域样式 */
.sql-output {
    background-color: #F8F8F8;
    padding: 1rem;
    border-radius: var(--border-radius);
    min-height: 200px;
    font-family: monospace;
    white-space: pre-wrap;
}

/* 参数表格样式 */
.params-table {
    margin-top: 2rem;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1rem;
}

th,
td {
    padding: 0.75rem;
    text-align: left;
    border-bottom: 1px solid #E5E5E5;
}

/* 按钮样式 */
.button-group {
    display: flex;
    justify-content: center;
    gap: 1rem;
    padding: 2rem;
}

button {
    padding: 0.75rem 1.5rem;
    border-radius: 20px;
    border: none;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

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

.secondary-btn {
    background-color: #E5E5E5;
    color: var(--text-color);
}

button:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .container {
        grid-template-columns: 1fr;
    }
}

/* 提示框样式 */
.toast {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    background-color: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 12px 24px;
    border-radius: 24px;
    font-size: 14px;
    z-index: 1000;
    animation: toast-in 0.3s ease;
}

.toast-hide {
    animation: toast-out 0.3s ease forwards;
}

@keyframes toast-in {
    from {
        opacity: 0;
        transform: translate(-50%, 20px);
    }

    to {
        opacity: 1;
        transform: translate(-50%, 0);
    }
}

@keyframes toast-out {
    from {
        opacity: 1;
        transform: translate(-50%, 0);
    }

    to {
        opacity: 0;
        transform: translate(-50%, 20px);
    }
}