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

html, body {
    height: 100%;
    overflow: hidden;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
    background: #e2e2e2;
    color: #333;
    display: flex;
    flex-direction: column;
}

/* =============================================================================
   새로운 레이아웃 구조: Header (고정) - Content (스크롤) - Footer (고정)
   ============================================================================= */

/* 헤더 (고정) */
.site-header {
    display: flex;
    flex-direction: row;
    align-items: center;
    padding: 0 40px;
    background: #ffffff;
    border-bottom: 1px solid #e0e0e0;
    flex-shrink: 0;
    z-index: 100;
}

.header-left {
    display: flex;
    flex-direction: column;
    gap: 1px;
    flex-shrink: 0;
    margin-right: auto;
    padding: 16px 0;
}

.site-header h1 {
    font-size: 1.4rem;
    color: #4361ee;
    white-space: nowrap;
    font-weight: 700;
}

.site-header .update-date {
    font-size: 0.7rem;
    color: #999;
    white-space: nowrap;
}

/* 탭 네비게이션 (헤더 내) */
.tab-navigation {
    display: flex;
    align-items: stretch;
    gap: 0;
    height: 100%;
}

.tab-link {
    display: flex;
    align-items: center;
    padding: 0 16px;
    font-size: 0.88rem;
    font-weight: 400;
    color: #777;
    text-decoration: none;
    white-space: nowrap;
    cursor: pointer;
    border: none;
    border-bottom: 3px solid transparent;
    background: none;
    outline: none;
    transition: color 0.15s ease;
    line-height: 54px;
}

.tab-link:hover {
    color: #4361ee;
}

.tab-link.active {
    color: #4361ee;
    font-weight: 600;
    border-bottom-color: #4361ee;
}

/* 콘텐츠 영역 (스크롤) */
.site-content {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 20px;
}

.site-content::-webkit-scrollbar {
    width: 10px;
}

.site-content::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.1);
}

.site-content::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.4);
    border-radius: 5px;
}

.site-content::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.6);
}

.container {
    max-width: 1800px;
    margin: 0 auto;
}

/* Footer (고정) */
.site-footer {
    padding: 12px 30px;
    background: #ffffff;
    text-align: center;
    color: #888;
    font-size: 0.85rem;
    flex-shrink: 0;
    border-top: 1px solid #e0e0e0;
}

.site-footer p {
    margin: 0;
}

/* 기존 헤더 스타일 제거용 */
.header {
    display: none;
}

.subtitle {
    font-size: 1.1rem;
    opacity: 0.9;
}

/* 업로드 섹션 */
.upload-section {
    margin-bottom: 30px;
}

.upload-card {
    background: white;
    border-radius: 16px;
    padding: 30px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.upload-card h2 {
    margin-bottom: 20px;
    color: #667eea;
    font-size: 1.5rem;
}

.upload-area {
    border: 3px dashed #cbd5e0;
    border-radius: 12px;
    padding: 40px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    background: #f7fafc;
}

.upload-area:hover {
    border-color: #667eea;
    background: #edf2f7;
}

.upload-area.drag-over {
    border-color: #667eea;
    background: #e6f2ff;
}

.upload-icon {
    width: 64px;
    height: 64px;
    color: #667eea;
    margin-bottom: 20px;
}

.upload-text {
    font-size: 1.2rem;
    color: #2d3748;
    margin-bottom: 10px;
}

.upload-hint {
    color: #718096;
    font-size: 0.9rem;
}

.upload-btn {
    margin-top: 20px;
    padding: 12px 32px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s;
}

.upload-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
}

.file-info {
    margin-top: 20px;
    padding: 20px;
    background: #f7fafc;
    border-radius: 8px;
}

.file-info p {
    margin-bottom: 15px;
    color: #2d3748;
}

.process-btn {
    padding: 10px 24px;
    background: #48bb78;
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.process-btn:hover {
    background: #38a169;
    transform: translateY(-2px);
}

/* 로딩 */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.85);
    z-index: 9999;
    display: flex;
    justify-content: center;
    align-items: center;
}

.loading-content {
    text-align: center;
    padding: 40px 60px;
    background: white;
    border-radius: 16px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
}

.loading-content p {
    margin: 0;
    font-size: 1rem;
    color: #4a5568;
    font-weight: 500;
}

.spinner {
    border: 4px solid #f3f4f6;
    border-top: 4px solid #667eea;
    border-radius: 50%;
    width: 50px;
    height: 50px;
    animation: spin 1s linear infinite;
    margin: 0 auto 16px;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* 대시보드 */
#dashboard {
    animation: fadeIn 0.5s ease-in;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* 정보 섹션 */
.info-section {
    margin-bottom: 30px;
}

.info-card {
    background: white;
    border-radius: 16px;
    padding: 25px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    text-align: center;
}

.info-card h3 {
    color: #667eea;
    margin-bottom: 15px;
    font-size: 1.2rem;
}

.survey-date {
    font-size: 1.5rem;
    font-weight: 600;
    color: #2d3748;
}

/* 통계 섹션 - 모든 섹션 통합 */
.stats-section,
.regional-section,
.ranking-section,
.chart-section,
.flow-chart-section,
.bar-chart-section,
.heatmap-section,
.multiples-section,
.top10-section {
    margin-bottom: 30px !important;
    width: 100% !important;
    max-width: 100% !important;
    margin-left: 0 !important;
    margin-right: 0 !important;
    padding-left: 0 !important;
    padding-right: 0 !important;
    display: block !important;
}

.stats-section h2,
.regional-section h2,
.ranking-section h2,
.chart-section h2,
.multiples-section h2,
.flow-chart-section h2,
.bar-chart-section h2,
.heatmap-section h2 {
    color: #4361ee;
    font-size: 1.8rem;
    margin-bottom: 20px;
    text-shadow: none;
    display: block !important;
    width: 100% !important;
    max-width: none !important;
    margin-left: 0 !important;
    margin-right: 0 !important;
    padding-left: 0 !important;
    padding-right: 0 !important;
}

.stats-grid,
.regional-grid,
.ranking-grid,
.flow-chart-grid,
.bar-chart-grid,
.multiples-grid,
.top10-grid {
    display: grid !important;
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 20px !important;
    width: 100% !important;
}

.stat-card {
    background: white;
    border-radius: 16px;
    padding: 25px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    text-align: center;
    transition: transform 0.3s;
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.stat-card h3 {
    color: #667eea;
    margin-bottom: 15px;
    font-size: 1.3rem;
}

.stat-value {
    font-size: 2.5rem;
    font-weight: 700;
    margin: 10px 0;
}

.stat-value.positive {
    color: #e53e3e;
}

.stat-value.negative {
    color: #3182ce;
}

.stat-value.neutral {
    color: #2d3748;
}

.stat-change {
    font-size: 1rem;
    font-weight: 500;
    margin-top: 5px;
    color: #718096;
}

.stat-change.positive {
    color: #e53e3e;
}

.stat-change.negative {
    color: #3182ce;
}

.stat-change.neutral {
    color: #2d3748;
}

.stat-label {
    color: #718096;
    font-size: 0.9rem;
}

/* 지역별 통계 */

.regional-category {
    background: white;
    border-radius: 16px;
    padding: 25px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.regional-category-title {
    color: #667eea;
    margin-bottom: 20px;
    font-size: 1.2rem;
    border-bottom: 2px solid #e2e8f0;
    padding-bottom: 10px;
}

.regional-stats-row {
    display: flex;
    justify-content: space-around;
    gap: 20px;
}

.regional-stat-item {
    flex: 1;
    text-align: center;
    padding: 15px;
    background: #f7fafc;
    border-radius: 8px;
}

.regional-label {
    font-size: 0.9rem;
    color: #718096;
    margin-bottom: 10px;
    font-weight: 500;
}

.regional-value {
    font-size: 1.8rem;
    font-weight: 700;
    margin: 5px 0;
}

.regional-value.positive {
    color: #e53e3e;
}

.regional-value.negative {
    color: #3182ce;
}

.regional-value.neutral {
    color: #2d3748;
}

.regional-change {
    font-size: 0.9rem;
    font-weight: 500;
    margin-top: 5px;
    color: #718096;
}

.regional-change.positive {
    color: #e53e3e;
}

.regional-change.negative {
    color: #3182ce;
}

.regional-change.neutral {
    color: #2d3748;
}

.regional-card {
    background: white;
    border-radius: 16px;
    padding: 25px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.regional-card h3 {
    color: #667eea;
    margin-bottom: 20px;
    font-size: 1.2rem;
    border-bottom: 2px solid #e2e8f0;
    padding-bottom: 10px;
}

.regional-stats {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.regional-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px;
    background: #f7fafc;
    border-radius: 8px;
}

.regional-item span:first-child {
    font-weight: 600;
    color: #4a5568;
}

.regional-value {
    font-size: 1.3rem;
    font-weight: 700;
}

.regional-value.positive {
    color: #e53e3e;
}

.regional-value.negative {
    color: #3182ce;
}

/* 순위 섹션 */

.ranking-card {
    background: white;
    border-radius: 16px;
    padding: 25px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.ranking-title {
    font-size: 1.3rem;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 3px solid #e2e8f0;
}

.ranking-title.rising {
    color: #e53e3e;
}

.ranking-title.falling {
    color: #3182ce;
}

.ranking-caption {
    font-size: 0.65em;
    font-weight: 400;
    color: #718096;
}

.section-caption {
    font-size: 0.85rem;
    font-weight: 400;
    color: #333;
    margin: 2px 0 0 0;
}

.ranking-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.ranking-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 15px;
    background: #f7fafc;
    border-radius: 8px;
    transition: background 0.2s;
}

.ranking-item:hover {
    background: #edf2f7;
}

.ranking-position {
    display: inline-block;
    width: 28px;
    height: 28px;
    background: #667eea;
    color: white;
    border-radius: 50%;
    text-align: center;
    line-height: 28px;
    font-weight: 700;
    margin-right: 12px;
    font-size: 0.9rem;
}

.ranking-region {
    flex: 1;
    font-weight: 600;
    color: #2d3748;
}

.ranking-rate {
    font-size: 1.1rem;
    font-weight: 700;
}

.ranking-rate.positive {
    color: #e53e3e;
}

.ranking-rate.negative {
    color: #3182ce;
}

/* 차트 섹션 */
.chart-container {
    background: white;
    border-radius: 16px;
    padding: 30px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

#timeSeriesChart {
    max-height: 400px;
}

/* 에러 메시지 */
.error-message {
    background: #fed7d7;
    color: #c53030;
    padding: 20px;
    border-radius: 12px;
    margin: 20px 0;
    border-left: 5px solid #e53e3e;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

/* 권역별 증감 흐름 차트 섹션 */


.flow-chart-card {
    background: white;
    border-radius: 16px;
    padding: 25px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.flow-chart-card h3 {
    color: #667eea;
    margin-bottom: 20px;
    font-size: 1.2rem;
    border-bottom: 2px solid #e2e8f0;
    padding-bottom: 10px;
}

.flow-chart-container {
    position: relative;
    width: 100%;
}

.flow-chart-container canvas {
    width: 100% !important;
    height: auto !important;
}

/* 차트 기간 필터 (권역별 흐름 + 수요&공급 공용) */
.flow-chart-filter {
    margin-top: 0;
}

.supply-chart-filter {
    margin-top: 24px;
}

.flow-chart-filter,
.supply-chart-filter {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: white;
    border-radius: 12px;
    padding: 14px 20px;
    margin-bottom: 16px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    gap: 16px;
    flex-wrap: wrap;
}

.filter-presets {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}

.filter-presets button {
    background: #f0f0f5;
    border: 1px solid #e2e8f0;
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    color: #4a5568;
}

.filter-presets button:hover {
    background: #e2e8f0;
    border-color: #cbd5e0;
}

.filter-presets button.active {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-color: transparent;
    font-weight: 600;
}

.filter-date-range {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.filter-date-range label {
    font-size: 0.85rem;
    color: #4a5568;
    font-weight: 500;
    white-space: nowrap;
}

.filter-date-range span {
    font-size: 0.9rem;
    color: #718096;
}

.filter-date-range input[type="date"] {
    padding: 5px 10px;
    border: 1px solid #e2e8f0;
    border-radius: 6px;
    font-size: 0.85rem;
    color: #4a5568;
    background: #f7fafc;
    outline: none;
    transition: border-color 0.2s;
}

.filter-date-range input[type="date"]:focus {
    border-color: #667eea;
}

#flowDateApply,
#supplyDateApply {
    background: #667eea;
    color: white;
    border: none;
    padding: 6px 16px;
    border-radius: 6px;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s;
}

#flowDateApply:hover,
#supplyDateApply:hover {
    background: #5a6fd6;
}

/* 가로 막대 차트 섹션 */


.bar-chart-card {
    background: white;
    border-radius: 16px;
    padding: 25px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.bar-chart-card h3 {
    color: #667eea;
    margin-bottom: 20px;
    font-size: 1.2rem;
    border-bottom: 2px solid #e2e8f0;
    padding-bottom: 10px;
}

.bar-chart-container {
    position: relative;
    width: 100%;
}

.bar-chart-container canvas {
    width: 100% !important;
    height: auto !important;
}

/* 히트맵 테이블 섹션 */

.heatmap-container {
    background: white;
    border-radius: 16px;
    padding: 25px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    overflow-x: auto;
}

.table-wrapper {
    overflow-x: auto;
}

.heatmap-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

.heatmap-table th {
    background: #667eea;
    color: white;
    padding: 12px 8px;
    text-align: center;
    font-weight: 600;
    border: 1px solid #5568d3;
    position: sticky;
    top: 0;
    z-index: 10;
}

.heatmap-table td {
    padding: 10px 8px;
    text-align: center;
    border: 1px solid #e2e8f0;
    font-weight: 500;
}

.heatmap-table tbody tr:hover {
    background: #f7fafc;
}

.heatmap-table td:first-child {
    font-weight: 600;
    text-align: left;
    color: #2d3748;
    background: #f7fafc;
    position: sticky;
    left: 0;
    z-index: 5;
}

.heatmap-table tbody tr:hover td:first-child {
    background: #edf2f7;
}

/* 히트맵 색상 */
.heatmap-cell {
    font-weight: 600;
    border-radius: 4px;
    padding: 6px 4px;
}

.heatmap-positive-strong {
    background: #fc8181;
    color: #742a2a;
}

.heatmap-positive-medium {
    background: #feb2b2;
    color: #9b2c2c;
}

.heatmap-positive-weak {
    background: #fed7d7;
    color: #c53030;
}

.heatmap-neutral {
    background: #edf2f7;
    color: #4a5568;
}

.heatmap-negative-weak {
    background: #bee3f8;
    color: #2c5282;
}

.heatmap-negative-medium {
    background: #90cdf4;
    color: #2a4365;
}

.heatmap-negative-strong {
    background: #63b3ed;
    color: #1a365d;
}

/* 새로운 테이블 스타일 */
/* 헤더 스타일 - 모두 동일한 회색 */
.region-header {
    background: #4a5568 !important;
}

.trade-header {
    background: #4a5568 !important;
}

.jeonse-header {
    background: #4a5568 !important;
}

.sub-header {
    background: #4a5568 !important;
    font-size: 0.85rem !important;
}

/* 지역 그룹별 배경색 */
.region-name {
    font-weight: 600 !important;
    text-align: left !important;
}

.group-national {
    background: #ff967e !important;
    color: #000000 !important;
}

.group-capital {
    background: #ffdc74 !important;
    color: #000000 !important;
}

.group-metro {
    background: #d9efb9 !important;
    color: #000000 !important;
}

.group-other {
    background: #ceeeff !important;
    color: #000000 !important;
}

/* 값 셀 스타일 */
.value-cell {
    position: relative;
    padding: 8px !important;
    min-width: 60px;
}

.value-bar {
    position: absolute;
    top: 0;
    height: 100%;
    z-index: 1;
}

.value-text {
    position: relative;
    z-index: 2;
    font-weight: 500;
}

/* 변동폭 셀 스타일 */
.change-cell {
    font-weight: 600 !important;
}

.positive-text {
    color: #e53e3e !important;
}

.negative-text {
    color: #3182ce !important;
}

.neutral-text {
    color: #2d3748 !important;
}

/* 멀티플 차트 섹션 */


.multiple-chart-card {
    background: white;
    border-radius: 16px;
    padding: 25px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    min-height: 400px;
}

.multiple-chart-card h4 {
    color: #667eea;
    margin-bottom: 15px;
    font-size: 1rem;
    text-align: center;
    border-bottom: 2px solid #e2e8f0;
    padding-bottom: 8px;
}

.multiple-chart-card canvas {
    height: 350px !important;
}

/* 반응형 */
@media (max-width: 768px) {
    header h1 {
        font-size: 2rem;
    }

    .stats-grid,
    .regional-grid,
    .ranking-grid,
    .flow-chart-grid,
    .bar-chart-grid,
    .multiples-grid,
    .top10-grid {
        grid-template-columns: 1fr;
    }

    .stat-value {
        font-size: 2rem;
    }

    .heatmap-table {
        font-size: 0.75rem;
    }

    .heatmap-table th,
    .heatmap-table td {
        padding: 8px 4px;
    }
}

/* Top 10 증감률 섹션 */

.top10-section h2 {
    color: #4361ee;
    font-size: 1.8rem;
    margin-bottom: 20px;
    text-shadow: none;
}


.top10-card {
    background: white;
    border-radius: 16px;
    padding: 25px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.top10-title {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 16px;
    color: #2d3748;
    display: flex;
    align-items: center;
    gap: 8px;
}

.top10-title .icon {
    font-size: 1.3rem;
}

.top10-bar-chart {
    height: 300px;
    margin-bottom: 20px;
}

.top10-heatmap {
    overflow-x: auto;
}

.top10-heatmap-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85rem;
}

.top10-region-header,
.top10-week-header {
    background-color: #f7fafc;
    padding: 10px 8px;
    text-align: center;
    font-weight: 600;
    color: #4a5568;
    border: 1px solid #e2e8f0;
}

.top10-region-header {
    text-align: left;
    min-width: 120px;
}

.top10-week-header {
    font-size: 0.75rem;
    min-width: 80px;
    white-space: nowrap;
}

.top10-region-cell {
    padding: 10px 8px;
    text-align: left;
    font-weight: 500;
    color: #2d3748;
    border: 1px solid #e2e8f0;
    background-color: #f7fafc;
    white-space: nowrap;
}

.top10-value-cell {
    padding: 10px 8px;
    text-align: center;
    font-weight: 500;
    border: 1px solid #e2e8f0;
    transition: all 0.2s;
    white-space: nowrap;
}

.top10-value-cell:hover {
    transform: scale(1.05);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

/* 육각형 지도 섹션 */
.hexmap-section {
    margin-bottom: 30px;
}

.hexmap-section h2 {
    font-size: 1.8rem;
    color: #4361ee;
    margin-bottom: 20px;
    text-shadow: none;
}

.hexmap-container-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr 400px;
    gap: 20px;
    margin-top: 15px;
    background: transparent;
}

.hexmap-card {
    background: white;
    border-radius: 16px;
    padding: 20px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    display: flex;
    flex-direction: column;
    min-height: 800px;
}

.hexmap-card h3 {
    font-size: 1.2rem;
    color: #2d3748;
    margin-bottom: 5px;
    text-align: center;
    font-weight: 600;
}

.hexmap-date {
    font-size: 0.9rem;
    color: #718096;
    text-align: center;
    margin-bottom: 10px;
}

.hexmap-canvas {
    display: flex;
    justify-content: center;
    align-items: center;
    flex: 1;
    overflow: hidden;
    padding: 0;
}

.hexmap-canvas svg {
    width: 100%;
    height: 100%;
}

/* 날짜 선택 패널 */
.date-selector-panel {
    background: white;
    border-radius: 16px;
    padding: 20px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.date-selector-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 15px;
    border-bottom: 2px solid #e2e8f0;
}

.date-selector-header h3 {
    font-size: 1.2rem;
    color: #2d3748;
    font-weight: 600;
    margin: 0;
}

/* 토글 스위치 */
.toggle-switch {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    user-select: none;
}

.toggle-switch span:first-child {
    font-size: 0.9rem;
    color: #4a5568;
}

.toggle-switch input[type="checkbox"] {
    display: none;
}

.toggle-slider {
    position: relative;
    width: 48px;
    height: 24px;
    background: #cbd5e0;
    border-radius: 12px;
    transition: background 0.3s;
}

.toggle-slider::before {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: white;
    top: 2px;
    left: 2px;
    transition: transform 0.3s;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.toggle-switch input[type="checkbox"]:checked + .toggle-slider {
    background: #667eea;
}

.toggle-switch input[type="checkbox"]:checked + .toggle-slider::before {
    transform: translateX(24px);
}

/* 날짜 리스트 */
.date-list-container {
    max-height: 350px;
    overflow-y: auto;
    padding: 10px;
    background: #f7fafc;
    border-radius: 8px;
    scrollbar-width: thin;
    scrollbar-color: #cbd5e0 #f7fafc;
}

.date-list-container::-webkit-scrollbar {
    width: 8px;
}

.date-list-container::-webkit-scrollbar-track {
    background: #f7fafc;
    border-radius: 4px;
}

.date-list-container::-webkit-scrollbar-thumb {
    background: #cbd5e0;
    border-radius: 4px;
}

.date-list-container::-webkit-scrollbar-thumb:hover {
    background: #a0aec0;
}

.date-item {
    padding: 8px 12px;
    margin: 4px 0;
    background: white;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s;
    font-size: 0.9rem;
    color: #4a5568;
    text-align: center;
    border: 2px solid transparent;
}

.date-item:hover {
    background: #edf2f7;
    border-color: #cbd5e0;
}

.date-item.selected {
    background: #667eea;
    color: white;
    font-weight: 600;
    border-color: #667eea;
}

/* 선택된 날짜 표시 */
.selected-date-display {
    font-size: 2rem;
    font-weight: 700;
    color: #3182ce;
    text-align: center;
    padding: 15px;
    background: #ebf8ff;
    border-radius: 8px;
    letter-spacing: 2px;
}

/* 색상 범례 */
.color-legend {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.legend-bar {
    height: 30px;
    border-radius: 6px;
    background: linear-gradient(to right,
        rgb(100, 100, 255) 0%,
        rgb(255, 255, 255) 50%,
        rgb(255, 100, 100) 100%);
    border: 1px solid #cbd5e0;
}

.legend-labels {
    display: flex;
    justify-content: space-between;
    font-size: 0.85rem;
    color: #4a5568;
}

/* 색상 밀도 조절 */
.color-density-control {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.color-density-control label {
    font-size: 0.9rem;
    color: #4a5568;
    font-weight: 600;
}

.color-density-control input[type="range"] {
    width: 100%;
    height: 6px;
    background: #e2e8f0;
    border-radius: 3px;
    outline: none;
    -webkit-appearance: none;
}

.color-density-control input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 18px;
    height: 18px;
    background: #667eea;
    cursor: pointer;
    border-radius: 50%;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.color-density-control input[type="range"]::-moz-range-thumb {
    width: 18px;
    height: 18px;
    background: #667eea;
    cursor: pointer;
    border-radius: 50%;
    border: none;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.density-value {
    text-align: center;
    font-size: 1.1rem;
    font-weight: 600;
    color: #667eea;
}

@media (max-width: 1024px) {
    .stats-grid,
    .regional-grid,
    .ranking-grid,
    .flow-chart-grid,
    .bar-chart-grid,
    .multiples-grid,
    .top10-grid {
        grid-template-columns: 1fr;
    }

    .hexmap-container-wrapper {
        grid-template-columns: 1fr;
    }
}

/* =============================================================================
   탭 네비게이션 스타일
   ============================================================================= */
.header {
    text-align: center;
    color: white;
    margin-bottom: 20px;
    padding: 20px;
}

.header h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
    text-shadow: none;
}

.update-date {
    font-size: 1.1rem;
    opacity: 0.9;
}



/* 탭 콘텐츠 */
.tab-content-wrapper {
    position: relative;
}

.tab-content {
    display: none;
    animation: fadeIn 0.3s ease-in-out;
}

.tab-content.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}


/* =============================================================================
   공지사항 스타일
   ============================================================================= */
.notice-section {
    margin-bottom: 30px;
}

.notice-section h2 {
    color: #4361ee;
    font-size: 1.8rem;
    margin-bottom: 20px;
    text-shadow: none;
}

.notice-list-container {
    background: white;
    border-radius: 16px;
    padding: 30px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.notice-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.notice-item {
    display: flex;
    align-items: center;
    padding: 20px;
    background: #f7fafc;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.notice-item:hover {
    background: #edf2f7;
    border-color: #667eea;
    transform: translateX(5px);
}

.notice-item-version {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-right: 20px;
    min-width: 70px;
    text-align: center;
}

.notice-item-content {
    flex: 1;
}

.notice-item-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: #2d3748;
    margin-bottom: 5px;
}

.notice-item-date {
    font-size: 0.9rem;
    color: #718096;
}

.notice-item-arrow {
    color: #a0aec0;
    font-size: 1.5rem;
    margin-left: 15px;
}

/* 공지사항 모달 */
.notice-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    z-index: 1000;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.notice-modal.active {
    display: flex;
}

.notice-modal-content {
    background: white;
    border-radius: 16px;
    max-width: 600px;
    width: 100%;
    max-height: 80vh;
    overflow-y: auto;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.notice-modal-header {
    display: flex;
    align-items: center;
    padding: 20px 25px;
    border-bottom: 1px solid #e2e8f0;
    background: #f7fafc;
    border-radius: 16px 16px 0 0;
}

.notice-modal-version {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 6px 14px;
    border-radius: 15px;
    font-size: 0.85rem;
    font-weight: 600;
}

.notice-modal-date {
    margin-left: 15px;
    color: #718096;
    font-size: 0.9rem;
}

.notice-modal-close {
    margin-left: auto;
    background: none;
    border: none;
    font-size: 2rem;
    color: #a0aec0;
    cursor: pointer;
    line-height: 1;
    padding: 0;
    transition: color 0.2s;
}

.notice-modal-close:hover {
    color: #e53e3e;
}

.notice-modal-title {
    padding: 25px 25px 15px;
    font-size: 1.4rem;
    color: #2d3748;
    font-weight: 600;
}

.notice-modal-body {
    padding: 0 25px 25px;
}

.notice-modal-body ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.notice-modal-body li {
    padding: 12px 0;
    border-bottom: 1px solid #e2e8f0;
    color: #4a5568;
    font-size: 1rem;
    line-height: 1.6;
    display: flex;
    align-items: flex-start;
}

.notice-modal-body li:last-child {
    border-bottom: none;
}

.notice-modal-body li::before {
    content: '•';
    color: #667eea;
    font-weight: bold;
    margin-right: 12px;
    font-size: 1.2rem;
}

@media (max-width: 768px) {
    .notice-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }

    .notice-item-version {
        margin-right: 0;
    }

    .notice-item-arrow {
        display: none;
    }

    .notice-modal-content {
        max-height: 90vh;
    }
}

/* =============================================================================
   반응형 디자인
   ============================================================================= */

/* 태블릿 (1024px 이하) */
@media (max-width: 1024px) {
    .site-header {
        flex-direction: column;
        gap: 15px;
        padding: 15px 20px;
    }

    .header-left {
        flex-direction: column;
        gap: 5px;
        text-align: center;
    }

    .stats-grid,
    .regional-grid,
    .ranking-grid,
    .flow-chart-grid,
    .bar-chart-grid,
    .multiples-grid,
    .top10-grid {
        grid-template-columns: 1fr !important;
    }

    .hexmap-container-wrapper {
        grid-template-columns: 1fr !important;
    }

    .hexmap-card {
        min-height: 500px;
    }

    .date-selector-panel {
        order: -1;
    }
}

/* 모바일 (768px 이하) */
@media (max-width: 768px) {
    .site-header {
        padding: 12px 15px;
        gap: 12px;
    }

    .site-header h1 {
        font-size: 1.1rem;
    }

    .site-header .update-date {
        font-size: 0.8rem;
    }

    .tab-navigation {
        gap: 0;
    }

    .tab-link {
        font-size: 0.75rem;
        padding: 0 10px;
        line-height: 48px;
    }

    .site-content {
        padding: 15px 10px;
    }

    /* 섹션 제목 */
    .stats-section h2,
    .regional-section h2,
    .ranking-section h2,
    .chart-section h2,
    .multiples-section h2,
    .flow-chart-section h2,
    .bar-chart-section h2,
    .heatmap-section h2,
    .top10-section h2,
    .notice-section h2,
    .hexmap-section h2 {
        font-size: 1.3rem !important;
        margin-bottom: 15px;
    }

    /* 통계 카드 */
    .stat-card,
    .regional-category,
    .ranking-card,
    .flow-chart-card,
    .bar-chart-card,
    .top10-card {
        padding: 15px;
        border-radius: 12px;
    }

    .stat-value {
        font-size: 1.8rem;
    }

    .regional-value {
        font-size: 1.4rem;
    }

    .regional-stats-row {
        flex-direction: column;
        gap: 10px;
    }

    /* 흐름 차트 필터 */
    .flow-chart-filter {
        flex-direction: column;
        align-items: stretch;
        gap: 10px;
        padding: 12px 15px;
    }

    .filter-presets {
        justify-content: center;
    }

    .filter-date-range {
        justify-content: center;
    }

    /* 차트 컨테이너 */


    .top10-bar-chart {
        height: 220px;
    }

    /* 테이블 */
    .heatmap-table,
    .top10-heatmap-table {
        font-size: 0.7rem;
    }

    .heatmap-table th,
    .heatmap-table td {
        padding: 6px 3px;
    }

    /* 지도 */
    .hexmap-card {
        min-height: 400px;
        padding: 15px;
    }

    .date-list-container {
        max-height: 200px;
    }

    /* 공지사항 */
    .notice-list-container {
        padding: 15px;
    }

    .notice-item {
        padding: 15px;
    }

    .notice-item-title {
        font-size: 1rem;
    }

    .notice-modal-content {
        margin: 10px;
    }

    .notice-modal-title {
        font-size: 1.2rem;
        padding: 20px 20px 10px;
    }

    .notice-modal-body {
        padding: 0 20px 20px;
    }

    .notice-modal-body li {
        font-size: 0.9rem;
    }

    .site-footer {
        padding: 10px 15px;
        font-size: 0.75rem;
    }
}

/* 작은 모바일 (480px 이하) */
@media (max-width: 480px) {
    .site-header h1 {
        font-size: 0.95rem;
    }

    .tab-link {
        font-size: 0.7rem;
        padding: 0 8px;
        line-height: 44px;
    }

    .stat-value {
        font-size: 1.5rem;
    }

    .ranking-item {
        padding: 8px 10px;
    }

    .ranking-position {
        width: 24px;
        height: 24px;
        line-height: 24px;
        font-size: 0.8rem;
    }

    .ranking-region {
        font-size: 0.85rem;
    }

    .ranking-rate {
        font-size: 0.95rem;
    }
}