/* ====== CSS 변수 ====== */
:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #dbeafe;
    --text-main: #0f172a;
    --text-sub: #475569;
    --text-light: #94a3b8;
    --bg-main: #f8fafc;
    --bg-white: #ffffff;
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --radius: 12px;
    --radius-lg: 16px;
}

/* ====== 리셋 및 기본 ====== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: 'Noto Sans KR', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-main);
    color: var(--text-main);
    line-height: 1.6;
    padding: 0;
    margin: 0;
}

.container {
    max-width: 100%;
    padding: 12px 16px 30px;
    margin: 0 auto;
    background: var(--bg-white);
    min-height: 100vh;
}

/* ====== 헤더 ====== */
header {
    padding: 16px 0 12px;
    border-bottom: 2px solid var(--border-color);
    margin-bottom: 16px;
}

header h1 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-main);
    display: flex;
    align-items: center;
    gap: 8px;
}

header h1 i {
    color: var(--primary);
    font-size: 1.1rem;
}

.api-status-area {
    margin-top: 10px;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
}

.status-badge {
    font-size: 0.7rem;
    padding: 4px 10px;
    background: #dcfce7;
    color: #166534;
    border-radius: 20px;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    white-space: nowrap;
}

.status-badge i {
    font-size: 0.6rem;
}

.back-to-main-button {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 6px 12px;
    background: var(--bg-main);
    color: var(--text-sub);
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.2s;
    border: 1px solid var(--border-color);
}

.back-to-main-button:active {
    transform: scale(0.96);
}

/* ====== 검색 영역 ====== */
.search-area {
    margin-bottom: 16px;
}

.search-area h2 {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-sub);
    margin-bottom: 10px;
}

.input-group {
    display: flex;
    gap: 8px;
}

.input-group input {
    flex: 1;
    padding: 12px 16px;
    border: 2px solid var(--border-color);
    border-radius: var(--radius);
    font-size: 16px;
    background: var(--bg-white);
    transition: border-color 0.2s;
    min-height: 48px;
    -webkit-appearance: none;
}

.input-group input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.input-group input::placeholder {
    color: var(--text-light);
    font-size: 0.9rem;
}

.input-group button {
    padding: 12px 20px;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: var(--radius);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    white-space: nowrap;
    min-height: 48px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.input-group button:active {
    transform: scale(0.96);
    background: var(--primary-dark);
}

.input-group button:disabled {
    opacity: 0.6;
    transform: none;
}

/* ====== 링크 그리드 ====== */
.link-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    margin-top: 12px;
}

.link-grid section {
    display: flex;
}

.link-grid section a {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 10px 8px;
    border-radius: 10px;
    font-size: 0.7rem;
    font-weight: 600;
    text-decoration: none;
    text-align: center;
    justify-content: center;
    transition: all 0.2s;
    border: 1px solid transparent;
    line-height: 1.3;
    min-height: 44px;
}

.link-grid section a i {
    font-size: 0.8rem;
}

.btn-estate.btn-jeonse {
    background: #eff6ff;
    color: #1d4ed8;
    border-color: #bfdbfe;
}

.btn-estate.btn-sale {
    background: #fff7ed;
    color: #9a3412;
    border-color: #fed7aa;
}

.link-grid section a:active {
    transform: scale(0.96);
}

/* ====== 정보 배너 ====== */
.info-banner {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 14px;
    background: var(--bg-main);
    border-radius: 10px;
    font-size: 0.85rem;
    color: var(--text-sub);
    margin: 12px 0 8px;
    border-left: 3px solid var(--primary);
}

.info-banner i {
    color: var(--primary);
    font-size: 0.9rem;
}
/* ====== 광고 컨테이너 (모바일 최적화 강화) ====== */
.ad-container-block {
    margin: 12px 0;
    text-align: center;
    position: relative;
    z-index: 1;
    clear: both;
    overflow: hidden;
    min-height: 90px;              /* ← 광고 로드 전에도 공간 확보 (기존 auto → 90px) */
    background: #ffffff;           /* ← 배경색 추가 (광고 로딩 시 깜빡임 방지) */
    border-radius: 8px;            /* ← 둥근 모서리로 광고 영역 정돈 */
    display: flex;                 /* ← 내부 콘텐츠 중앙 정렬 */
    align-items: center;
    justify-content: center;
}

.ad-container-block ins.adsbygoogle {
    display: block !important;
    position: relative !important;
    z-index: 1 !important;
    min-height: 90px;              /* ← 광고 iframe 최소 높이도 동일하게 */
    width: 100%;                   /* ← 가로폭 꽉 채우기 */
}

/* ✅ 모바일에서 광고 영역이 버튼을 가리지 않도록 여백 추가 */
@media (max-width: 480px) {
    .ad-container-block {
        margin: 16px 0;            /* ← 상하 여백 늘려서 버튼과의 간격 확보 */
        min-height: 100px;         /* ← 모바일에서는 조금 더 여유롭게 */
    }
    .ad-container-block ins.adsbygoogle {
        min-height: 100px;
    }
}

/* ====== SSR 컨테이너 ====== */
.initial-server-render {
    padding: 16px !important;
    border: 1px solid var(--border-color) !important;
    border-radius: var(--radius-lg) !important;
    margin-bottom: 16px !important;
    background: var(--bg-white) !important;
    box-shadow: var(--shadow-sm) !important;
}

.initial-server-render > div {
    display: grid !important;
    grid-template-columns: 1fr !important;
    gap: 12px !important;
}

.result-title-single {
    font-size: 1.15rem !important;
    font-weight: 700 !important;
    color: var(--text-main) !important;
    margin-bottom: 12px !important;
    border-bottom: 3px solid var(--primary) !important;
    display: inline-block !important;
    padding-bottom: 4px !important;
    line-height: 1.3 !important;
}

.initial-server-render > div > div {
    background: var(--bg-main) !important;
    padding: 12px 14px !important;
    border-radius: 10px !important;
}

.initial-server-render > div > div:last-child {
    background: #fff7ed !important;
    border: 1px solid #fdba74 !important;
}

.initial-server-render > div > div h3 {
    font-size: 0.9rem !important;
    color: var(--text-main) !important;
    margin-bottom: 6px !important;
    font-weight: 600 !important;
}

.initial-server-render > div > div p {
    font-size: 0.85rem !important;
    line-height: 1.6 !important;
    color: var(--text-sub) !important;
}

.initial-server-render > div > div:last-child h3 {
    color: #9a3412 !important;
}

/* ====== 상세 뷰 ====== */
.detailed-view {
    padding: 0;
}

/* 섹션 헤더 */
.section-header {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-main);
    margin: 20px 0 8px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.section-header i {
    color: var(--primary);
}

/* 순위 노트 */
.rank-note {
    display: block;
    font-size: 0.7rem;
    color: var(--text-light);
    margin: 4px 0 10px;
    background: var(--bg-main);
    padding: 6px 10px;
    border-radius: 6px;
    border-left: 2px solid #cbd5e1;
}

.rank-note i {
    margin-right: 4px;
    color: #64748b;
}

/* ====== ✅ 테이블 (중앙 정렬 통일) ====== */
.data-table-wrapper {
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    margin: 12px 0;
    border-radius: var(--radius);
    border: 1px solid var(--border-color);
    background: var(--bg-white);
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.78rem;
    background: var(--bg-white);
    table-layout: fixed;
}

.data-table thead {
    background: #f1f5f9;
}

.data-table th {
    padding: 12px 10px;
    text-align: center;
    font-weight: 600;
    color: var(--text-sub);
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.3px;
    border-bottom: 2px solid var(--border-color);
}

.data-table td {
    padding: 10px 10px;
    text-align: center;
    border-bottom: 1px solid #f1f5f9;
    word-break: break-word;
    font-size: 0.78rem;
}

.data-table tr:last-child td {
    border-bottom: none;
}

/* ✅ 컬럼 너비 비율 (4컬럼) */
.data-table th:first-child,
.data-table td:first-child {
    width: 30%;
    text-align: left;
    padding-left: 14px;
    font-weight: 500;
}

.data-table th:nth-child(2),
.data-table td:nth-child(2) {
    width: 22%;
    text-align: right;
    font-variant-numeric: tabular-nums;
}

.data-table th:nth-child(3),
.data-table td:nth-child(3) {
    width: 24%;
    text-align: center;
}

.data-table th:last-child,
.data-table td:last-child {
    width: 24%;
    text-align: center;
}

/* ✅ 3컬럼 테이블 (총 세대수 등) */
.data-table.three-col th:first-child,
.data-table.three-col td:first-child {
    width: 40%;
    text-align: left;
}

.data-table.three-col th:nth-child(2),
.data-table.three-col td:nth-child(2) {
    width: 30%;
    text-align: right;
}

.data-table.three-col th:last-child,
.data-table.three-col td:last-child {
    width: 30%;
    text-align: center;
}

/* ✅ highlight-row */
.data-table .highlight-row {
    background: #f0f9ff !important;
    font-weight: 600;
}

.data-table .highlight-row td:first-child {
    font-weight: 700;
    color: var(--text-main);
}

.data-table .highlight-row td:last-child {
    font-weight: 700;
    color: var(--primary);
}

/* ✅ sub-group-header */
.data-table .sub-group-header {
    background: #f8fafc !important;
    font-weight: 700;
    font-size: 0.75rem;
    color: var(--text-sub);
}

.data-table .sub-group-header td {
    padding: 8px 14px !important;
    text-align: left !important;
    font-weight: 700;
    color: var(--text-main);
}

/* ✅ 들여쓰기 */
.data-table .sub-category {
    font-weight: 500;
    color: #334155;
    font-size: 0.7rem;
    padding-left: 14px !important;
    text-align: left !important;
}

.data-table .sub-sub-category {
    font-size: 0.65rem;
    color: #64748b;
    padding-left: 28px !important;
    text-align: left !important;
}

/* ✅ highlight-row-green */
.data-table .highlight-row-green {
    background: #f0fdf4 !important;
}

.data-table .highlight-row-green td:first-child {
    color: #166534;
    font-weight: 600;
}

/* ✅ 고령화율 색상 */
.data-table .high-aging-rate {
    color: #dc2626 !important;
    font-weight: 700;
}

.data-table .aged-society {
    color: #f59e0b !important;
    font-weight: 600;
}

.data-table .aging-society {
    color: var(--primary) !important;
    font-weight: 600;
}

/* ====== 차트 컨테이너 ====== */
.chart-container {
    width: 100%;
    height: 220px;
    margin: 8px 0 4px;
    position: relative;
    background: var(--bg-white);
    border-radius: 10px;
    padding: 4px;
}

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

/* ====== 세대원수 프로그레스 바 ====== */
.household-progress {
    padding: 14px 12px !important;
    background: var(--bg-main) !important;
    border: 1px solid var(--border-color) !important;
    border-radius: 10px !important;
    margin-bottom: 12px !important;
}

.household-progress > div {
    margin-bottom: 10px !important;
}

.household-progress > div:last-child {
    margin-bottom: 0 !important;
}

.household-progress .label-row {
    display: flex !important;
    justify-content: space-between !important;
    font-size: 0.75rem !important;
    margin-bottom: 3px !important;
}

.household-progress .label-row span:first-child {
    color: var(--text-sub) !important;
    font-weight: 500 !important;
}

.household-progress .label-row span:last-child {
    color: #64748b !important;
}

.household-progress .bar-track {
    flex-grow: 1 !important;
    background: var(--border-color) !important;
    height: 10px !important;
    border-radius: 6px !important;
    overflow: hidden !important;
    position: relative !important;
}

.household-progress .bar-fill {
    height: 100% !important;
    border-radius: 6px !important;
    transition: width 0.6s ease !important;
}

.household-progress .value-text {
    min-width: 60px !important;
    text-align: right !important;
    font-size: 0.8rem !important;
    font-weight: 700 !important;
    color: var(--text-main) !important;
}

/* ====== 요약 박스 ====== */
.summary-box {
    background: var(--bg-main) !important;
    padding: 10px 12px !important;
    border-radius: 8px !important;
    font-size: 0.8rem !important;
    color: var(--text-sub) !important;
    margin: 8px 0 6px !important;
    border: 1px solid var(--border-color) !important;
}

.summary-box i {
    color: var(--primary) !important;
    margin-right: 4px !important;
}

/* ====== 요약 컨테이너 (중앙 정렬) ====== */
.summary-container {
    line-height: 1.5 !important;
    color: #333 !important;
    font-size: 0.85rem !important;
    background: var(--bg-white) !important;
    padding: 16px !important;
    border-radius: var(--radius-lg) !important;
    border: 1px solid var(--border-color) !important;
    margin-bottom: 12px !important;
    text-align: center !important;
}

.summary-container .summary-header {
    margin-bottom: 10px !important;
    border-bottom: 2px solid #eee !important;
    padding-bottom: 6px !important;
    display: flex !important;
    justify-content: space-between !important;
    align-items: center !important;
    flex-wrap: wrap !important;
    text-align: center !important;
}

.summary-container .summary-header span:first-child {
    font-size: 1rem !important;
    font-weight: 700 !important;
    flex: 1;
    text-align: center;
}

.summary-container .summary-header span:last-child {
    color: #666 !important;
    font-size: 0.85rem !important;
    font-weight: 600;
}

.summary-container .indicator-grid {
    display: grid !important;
    grid-template-columns: 1fr 1fr !important;
    gap: 8px !important;
    margin-bottom: 12px !important;
    max-width: 400px !important;
    margin-left: auto !important;
    margin-right: auto !important;
}

.summary-container .indicator-grid > div {
    background: #f8f9fa !important;
    padding: 8px 10px !important;
    border-radius: 6px !important;
    text-align: center !important;
}

.summary-container .indicator-grid > div > div:first-child {
    font-size: 0.65rem !important;
    color: #777 !important;
}

.summary-container .indicator-grid > div > div:last-child {
    font-weight: 700 !important;
    font-size: 0.95rem !important;
}

.summary-container table {
    width: 100% !important;
    border-collapse: collapse !important;
    font-size: 0.8rem !important;
    margin-bottom: 12px !important;
    max-width: 400px !important;
    margin-left: auto !important;
    margin-right: auto !important;
}

.summary-container table tr {
    border-bottom: 1px solid #eee !important;
}

.summary-container table tr:last-child {
    border-bottom: none !important;
}

.summary-container table td {
    padding: 4px 8px !important;
    text-align: center !important;
}

.summary-container table td:first-child {
    color: #666 !important;
    text-align: left !important;
}

.summary-container table td:last-child {
    font-weight: 500 !important;
    text-align: right !important;
}

.summary-container .characteristic-box {
    background: #eef6ff !important;
    padding: 10px 12px !important;
    border-radius: 6px !important;
    border-left: 4px solid #007bff !important;
    font-size: 0.8rem !important;
    text-align: left !important;
    max-width: 400px !important;
    margin: 0 auto !important;
}

.summary-container .characteristic-box > div:first-child {
    font-weight: 700 !important;
    color: #0056b3 !important;
    margin-bottom: 2px !important;
}

/* ====== 블로그 콘텐츠 ====== */
#blog-content-area .blog-list {
    display: flex !important;
    flex-direction: column !important;
    gap: 10px !important;
    margin-top: 8px !important;
}

#blog-content-area .blog-list a {
    display: block !important;
    padding: 12px 14px !important;
    background: #fff !important;
    border: 1px solid #eee !important;
    border-radius: 10px !important;
    text-decoration: none !important;
    transition: all 0.2s !important;
}

#blog-content-area .blog-list a:active {
    transform: scale(0.98) !important;
    background: var(--bg-main) !important;
}

#blog-content-area .blog-list a > div:first-child {
    display: flex !important;
    justify-content: space-between !important;
    align-items: flex-start !important;
    gap: 8px !important;
    margin-bottom: 4px !important;
}

#blog-content-area .blog-list a > div:first-child span:first-child {
    color: var(--text-main) !important;
    font-weight: 600 !important;
    font-size: 0.85rem !important;
    line-height: 1.4 !important;
}

#blog-content-area .blog-list a > div:first-child span:last-child {
    color: var(--text-light) !important;
    font-size: 0.65rem !important;
    white-space: nowrap !important;
}

#blog-content-area .blog-list a p {
    color: #64748b !important;
    font-size: 0.75rem !important;
    margin: 0 !important;
    line-height: 1.5 !important;
    overflow: hidden !important;
    text-overflow: ellipsis !important;
    display: -webkit-box !important;
    -webkit-line-clamp: 2 !important;
    -webkit-box-orient: vertical !important;
}

/* ====== 부동산 시세 섹션 ====== */
.estate-section {
    background: var(--bg-white) !important;
    border-radius: 10px !important;
    border: 1px solid var(--border-color) !important;
    box-shadow: var(--shadow-sm) !important;
    margin-bottom: 12px !important;
    overflow: hidden !important;
}

.estate-section h3 {
    padding: 10px 14px !important;
    font-size: 0.85rem !important;
    font-weight: 600 !important;
    color: var(--text-main) !important;
    border-bottom: 1px solid var(--border-color) !important;
    background: var(--bg-main) !important;
}

.estate-section .estate-item {
    display: flex !important;
    align-items: center !important;
    justify-content: space-between !important;
    padding: 10px 14px !important;
    border-bottom: 1px solid #f1f5f9 !important;
}

.estate-section .estate-item:last-child {
    border-bottom: none !important;
}

.estate-section .estate-item .label {
    font-weight: 500 !important;
    color: var(--text-sub) !important;
    font-size: 0.8rem !important;
}

.estate-section .estate-item .links {
    display: flex !important;
    gap: 8px !important;
}

.estate-section .estate-item .links a {
    color: var(--primary) !important;
    text-decoration: none !important;
    font-size: 0.7rem !important;
    font-weight: 500 !important;
    padding: 3px 8px !important;
    border-radius: 4px !important;
    background: #eff6ff !important;
    transition: all 0.2s !important;
}

.estate-section .estate-item .links a:active {
    background: #bfdbfe !important;
    transform: scale(0.96) !important;
}

/* ====== 버튼 그룹 ====== */
.button-group {
    display: flex !important;
    flex-wrap: wrap !important;
    gap: 8px !important;
    margin-top: 16px !important;
    padding-top: 14px !important;
    border-top: 1px solid #eee !important;
}

.button-group .back-to-main-button {
    font-size: 0.75rem !important;
    padding: 8px 14px !important;
}

/* ====== 로딩 ====== */
#loading {
    font-size: 0.85rem !important;
    color: #64748b !important;
    padding: 12px !important;
}

#loading i {
    color: var(--primary) !important;
}

/* ====== 분리선 ====== */
.separator {
    border: none !important;
    border-top: 2px dashed var(--border-color) !important;
    margin: 16px 0 !important;
}

/* ====== 정보 메시지 ====== */
.info-message {
    padding: 20px !important;
    text-align: center !important;
    color: #64748b !important;
    font-size: 0.85rem !important;
}

/* ====== 반응형 (모바일) ====== */
@media (max-width: 480px) {
    .data-table {
        font-size: 0.7rem;
    }
    
    .data-table th {
        padding: 8px 6px;
        font-size: 0.6rem;
    }
    
    .data-table td {
        padding: 8px 6px;
        font-size: 0.7rem;
    }
    
    .data-table th:first-child,
    .data-table td:first-child {
        padding-left: 8px;
        width: 32%;
    }
    
    .data-table .sub-category {
        padding-left: 8px !important;
    }
    
    .data-table .sub-sub-category {
        padding-left: 16px !important;
    }
    
    .summary-container .indicator-grid {
        grid-template-columns: 1fr 1fr !important;
        gap: 6px !important;
    }
    
    .summary-container table {
        max-width: 100% !important;
    }
    
    .summary-container .characteristic-box {
        max-width: 100% !important;
    }
    
    .container {
        padding: 8px 10px 20px;
    }
    
    .initial-server-render {
        padding: 12px !important;
    }
}

/* ====== 태블릿 ====== */
@media (min-width: 481px) and (max-width: 768px) {
    .data-table {
        font-size: 0.75rem;
    }
    
    .data-table th,
    .data-table td {
        padding: 10px 10px;
    }
    
    .summary-container .indicator-grid {
        max-width: 350px !important;
    }
    
    .summary-container table {
        max-width: 350px !important;
    }
    
    .summary-container .characteristic-box {
        max-width: 350px !important;
    }
}

/* ====== 태블릿 및 데스크톱 ====== */
@media (min-width: 481px) {
    .container {
        padding: 16px 24px 40px;
        max-width: 768px;
    }
    
    header h1 {
        font-size: 1.5rem;
    }
    
    .result-title-single {
        font-size: 1.4rem !important;
    }
    
    .link-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .initial-server-render > div {
        grid-template-columns: 1fr 1fr !important;
    }
    
    .chart-container {
        height: 280px;
    }
}

@media (min-width: 769px) {
    .container {
        max-width: 1024px;
        padding: 24px 32px 50px;
    }
    
    .initial-server-render > div {
        grid-template-columns: 1fr 1fr 1fr !important;
    }
    
    .link-grid {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .link-grid section a {
        font-size: 0.85rem;
        padding: 12px 16px;
    }
    
    .chart-container {
        height: 320px;
    }
    
    .data-table {
        font-size: 0.9rem;
    }
}

@media (min-width: 1025px) {
    .container {
        max-width: 1200px;
        padding: 30px 40px 60px;
    }
}

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

.detailed-view {
    animation: fadeIn 0.3s ease;
}

@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* ====== 스크롤바 ====== */
.data-table-wrapper::-webkit-scrollbar {
    height: 4px;
}

.data-table-wrapper::-webkit-scrollbar-track {
    background: #f1f5f9;
    border-radius: 2px;
}

.data-table-wrapper::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: 2px;
}