body {
    font-family: Arial, sans-serif;
    background: #f7f7f7;
    margin: 0;
    padding: 2em;
}

h1 {
    color: #333;
    margin-bottom: 1em;
}

h2 {
    color: #555;
    margin-bottom: 0.5em;
}

h3 {
    color: #666;
    margin-bottom: 0.5em;
}

/* 테이블 선택 메뉴 */
.table-selector {
    background: #fff;
    padding: 1em;
    margin-bottom: 2em;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.table-link {
    display: inline-block;
    padding: 0.5em 1em;
    margin: 0.25em;
    background: #e9ecef;
    color: #495057;
    text-decoration: none;
    border-radius: 4px;
    transition: background-color 0.2s;
}

.table-link:hover {
    background: #dee2e6;
}

.table-link.active {
    background: #007bff;
    color: white;
}

/* 현재 테이블 정보 */
.current-table-info {
    background: #fff;
    padding: 1em;
    margin-bottom: 2em;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.current-table-info code {
    background: #f8f9fa;
    padding: 0.25em 0.5em;
    border-radius: 3px;
    font-family: monospace;
    font-size: 0.9em;
}

/* 데이터 테이블 */
table {
    border-collapse: collapse;
    width: 100%;
    background: #fff;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
    border-radius: 8px;
    overflow: hidden;
}

th, td {
    border: 1px solid #ddd;
    padding: 12px 8px;
    text-align: left;
}

th {
    background: #f8f9fa;
    font-weight: 600;
    color: #495057;
}

tr:nth-child(even) {
    background: #f9f9f9;
}

tr:hover {
    background: #e3f2fd;
}

/* 데이터 없음 메시지 */
.no-data {
    text-align: center;
    color: #6c757d;
    font-style: italic;
    padding: 2em;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

/* 통계 페이지 스타일 */
.stats-container {
    display: grid;
    gap: 2em;
}

.stats-section {
    background: #fff;
    padding: 1.5em;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.chart-container {
    margin: 1em 0;
    height: 400px;
    position: relative;
}

.stats-table {
    margin-top: 1.5em;
}

.stats-table table {
    margin: 0;
}

.stats-table th {
    background: #f1f3f4;
}

/* 반응형 디자인 */
@media (min-width: 1200px) {
    .stats-container {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    body {
        padding: 1em;
    }
    
    .table-selector {
        padding: 0.5em;
    }
    
    .table-link {
        display: block;
        margin: 0.25em 0;
    }
    
    .chart-container {
        height: 300px;
    }
}