/* 모든 페이지 공용 스타일: 색상 토큰 · 머리띠와 주요 메뉴 · 리서치형 본문 · 차트 · 페이지별 (demo · About)
   learn.html·policies.html 은 이 파일 다음에 qualitative.css(+policy-history.css)를 더 읽는다 */
* { box-sizing: border-box; margin: 0; }
[hidden] { display: none !important; }   /* display 를 지정한 요소도 hidden 이면 숨긴다 (탭 전환) */

/* ── 색상 토큰: 라이트(기본) ─────────────────────────── */
:root {
  color-scheme: light;
  --bg: #ffffff;
  --header-bg: rgba(245, 246, 248, 0.82);
  --ink: #111827;
  --ink-soft: #5b6475;
  --card-bg: #ffffff;
  --line: #e3e6eb;
  --line-strong: #d3d8df;
  --brand: #2f5aa8;          /* 링크·강조 (리서치 사이트의 파란 링크색) */
  --brand-hover: #1f3f80;
  --brand-soft: #e9eff9;
  --on-brand: #ffffff;       /* brand 색 배경 위의 글자색 */
  --chip-bg: #eceef2;
  --chip-hover: #e1e4ea;
  --input-bg: #ffffff;
  --shadow: rgba(16, 24, 40, 0.06);
  --shadow-strong: rgba(16, 24, 40, 0.10);
  --skeleton: #eef0f3;
  --skeleton-hi: #f7f8fa;
  --loading-bg: #fdf6ec;
  --loading-line: #d9953f;
  --ok-bg: #ecf6f4;
  --err-bg: #fdf0ec;
  --err-line: #c2562b;
  --err-ink: #7a2f12;
  --out-bg: #0f141c;
  --out-line: #1f2733;
  /* 차트 계열 색 (지역 비교, 최대 3개). 색약 구분·대비 검증을 통과한 순서 그대로 쓴다 */
  --series-1: #2a78d6;  --series-2: #eb6834;  --series-3: #1baf7a;
  /* 지도 히트맵 양방향 색: 상승 파랑 4단계 · 하락 빨강 4단계 · 0 근처 회색 (변화가 클수록 진하게) */
  --div-0: #e4e2dd;
  --div-p1: #b7d3f6;  --div-p2: #6da7ec;  --div-p3: #2a78d6;  --div-p4: #184f95;
  --div-n1: #f6c9c6;  --div-n2: #ec8f8b;  --div-n3: #e34948;  --div-n4: #a32d2c;
  --radius: 4px;
  --page-max: 1200px;        /* 본문 최대 폭 (머리띠 좌우 여백도 여기에 맞춘다) */
  /* 리서치 사이트 머리띠(남색)·세리프 제목 */
  --masthead: #233a70;
  --masthead-ink: #ffffff;
  --masthead-soft: rgba(255, 255, 255, 0.78);
  --masthead-btn: #5b8ce6;
  --title-ink: #1f3166;
  --serif: "Noto Serif KR", "Nanum Myeongjo", Georgia, "Times New Roman", serif;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Consolas, monospace;
}

/* ── 색상 토큰: 다크 (theme-init.js / main.js 가 data-theme 을 정한다) ── */
:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0e1116;
  --header-bg: rgba(14, 17, 22, 0.78);
  --ink: #e8eaee;
  --ink-soft: #97a1b2;
  --card-bg: #161b22;
  --line: #262d38;
  --line-strong: #323b48;
  --brand: #8fb0ee;
  --brand-hover: #b5cbf5;
  --brand-soft: #1a2640;
  --on-brand: #0b1918;
  --chip-bg: #1d232c;
  --chip-hover: #262e39;
  --input-bg: #0e1116;
  --shadow: rgba(0, 0, 0, 0.35);
  --shadow-strong: rgba(0, 0, 0, 0.5);
  --skeleton: #1c222b;
  --skeleton-hi: #232a34;
  --loading-bg: #2c2417;
  --loading-line: #c4904f;
  --ok-bg: #132826;
  --err-bg: #331c16;
  --err-line: #e08a6a;
  --err-ink: #f5c6b5;
  --out-bg: #090c10;
  --out-line: #1d242e;
  --series-1: #3987e5;  --series-2: #d95926;  --series-3: #199e70;
  /* 다크: 0 근처는 바탕에 가깝게 어둡고, 변화가 클수록 밝아진다 */
  --div-0: #383835;
  --div-p1: #1c3a63;  --div-p2: #1c5cab;  --div-p3: #3987e5;  --div-p4: #86b6ef;
  --div-n1: #4a2423;  --div-n2: #8f3434;  --div-n3: #e66767;  --div-n4: #f2a5a3;
  --masthead: #14223f;
  --masthead-btn: #3f6fc9;
  --title-ink: #c9d6f2;
}

body {
  font-family: "Pretendard Variable", "Pretendard", -apple-system, BlinkMacSystemFont,
               "Apple SD Gothic Neo", "Malgun Gothic", "Noto Sans KR", sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.65;
  font-feature-settings: "tnum";      /* 숫자 폭을 맞춰 지표 값이 흔들리지 않게 */
  -webkit-font-smoothing: antialiased;
  transition: background-color 0.2s, color 0.2s;
}

a { color: var(--brand); font-weight: 600; text-underline-offset: 3px; }
a:hover { color: var(--brand-hover); }

/* ══ 머리띠 (모든 페이지) ══════════════════════════════════════════
   남색 바탕, 왼쪽 집 마크 + 세리프 로고 + 물결 두 줄 + 부제, 오른쪽 주요 메뉴 4개와 테마 버튼 */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;            /* 900px 미만에서는 메뉴가 로고 아래 줄로 내려간다 */
  gap: 12px;
  padding: 16px max(24px, calc((100% - var(--page-max)) / 2));
  background: var(--masthead);
  color: var(--masthead-ink);
  box-shadow: 0 6px 18px -10px rgba(0, 0, 0, 0.35);
}
.site-header h1 {
  position: relative;
  isolation: isolate;          /* 뒤의 집 스케치(::before)를 로고 글자 아래에만 깐다 */
  flex: none;
  display: grid;
  gap: 10px;
  white-space: nowrap;
  font-family: var(--serif);
  font-size: clamp(24px, 2.4vw, 32px);
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--masthead-ink);
}
.site-header h1 a { color: inherit; font-weight: inherit; text-decoration: none; }
.site-header h1::before {          /* 로고 뒤 스케치풍 집: 형상만 보이도록 옅게 */
  content: "";
  position: absolute;
  z-index: -1;
  left: 50%;
  top: 50%;
  width: 172px;
  height: 98px;
  transform: translate(-50%, -52%);
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 222 126' fill='none' stroke='white' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M10 64 L111 9 L212 63'/%3E%3Cpath d='M16 61 L109 13 L207 66'/%3E%3Cpath d='M30 55 L29 118'/%3E%3Cpath d='M33 57 Q31 88 33 117'/%3E%3Cpath d='M192 55 L193 118'/%3E%3Cpath d='M189 58 Q191 90 190 116'/%3E%3Cpath d='M20 118 Q110 115 204 119'/%3E%3Cpath d='M26 121 L198 117'/%3E%3Cpath d='M152 36 L151 15 L168 14 L169 45'/%3E%3Cpath d='M155 17 L166 16'/%3E%3Cpath d='M98 118 L97 83 Q110 80 124 83 L125 118'/%3E%3Cpath d='M101 101 L103 101'/%3E%3Cpath d='M44 74 L72 73 L73 96 L45 97 Z'/%3E%3Cpath d='M58 74 L59 96 M45 85 L72 84'/%3E%3Cpath d='M150 74 L178 73 L179 96 L151 97 Z'/%3E%3Cpath d='M164 74 L165 96 M151 85 L178 84'/%3E%3Cpath d='M70 34 L84 30 M62 41 L80 35 M128 32 L142 38 M136 31 L154 41'/%3E%3C/svg%3E") center / contain no-repeat;
  opacity: 0.17;
  pointer-events: none;
}
.site-header h1::after {           /* 로고 아래 수평선 두 줄 + 부제 */
  content: "Korea Housing Market Intelligence";
  padding-top: 11px;
  font-family: "Pretendard Variable", "Pretendard", sans-serif;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--masthead-ink);
  /* 로고 아래 수평선 두 줄: 위는 부제 폭 전체, 아래는 62% 길이. 색은 머리띠 버튼색(--masthead-btn) */
  background:
    linear-gradient(var(--masthead-btn), var(--masthead-btn)) 0 0 / 100% 2px no-repeat,
    linear-gradient(var(--masthead-btn), var(--masthead-btn)) 0 4px / 62% 2px no-repeat;
}
.header-right { display: flex; align-items: center; gap: 10px; min-width: 0; max-width: 100%; }

/* 주요 메뉴 4개: Overview · 주택시장 지표 ▾ · 부동산 정책 · About ▾ (HTML 은 페이지마다 같은 내용) */
.main-nav { display: flex; flex: none; align-items: center; gap: 6px; min-width: 0; max-width: 100%; }
.main-nav > a,
.nav-top {
  flex: none;
  padding: 6px 8px;
  color: var(--masthead-soft);
  font-size: 14px;
  font-weight: 500;
  white-space: nowrap;
  text-decoration: none;
  box-shadow: inset 0 -2px 0 transparent;
  transition: color 0.15s;
}
.main-nav > a:hover,
.nav-top:hover { color: var(--masthead-ink); box-shadow: inset 0 -2px 0 var(--masthead-soft); }
.main-nav > a[aria-current="page"],
.nav-top[aria-current="page"] { color: var(--masthead-ink); font-weight: 700; box-shadow: inset 0 -2px 0 var(--masthead-btn); }

/* 하위 메뉴: 마우스를 올리거나 키보드로 들어가면 열린다. 터치 화면은 ▾ 버튼(main.js)으로 연다 */
.nav-item { position: relative; display: flex; align-items: center; }
.nav-item .nav-top { padding-right: 2px; }
.nav-caret {
  width: 22px;
  height: 30px;
  padding: 0;
  border: 0;
  background: none;
  cursor: pointer;
}
.nav-caret::before {               /* ▾ 모양 */
  content: "";
  display: block;
  width: 7px;
  height: 7px;
  margin: -3px auto 0;
  border-right: 1.6px solid var(--masthead-soft);
  border-bottom: 1.6px solid var(--masthead-soft);
  transform: rotate(45deg);
  transition: transform 0.15s;
}
.nav-caret[aria-expanded="true"]::before { transform: translateY(3px) rotate(-135deg); }
.nav-menu {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  z-index: 20;
  min-width: 230px;
  margin: 0;
  padding: 6px 0;
  list-style: none;
  background: var(--card-bg);
  border: 1px solid var(--line-strong);
  border-top: 3px solid var(--masthead-btn);
  border-radius: 0 0 4px 4px;
  box-shadow: 0 14px 30px -12px rgba(0, 0, 0, 0.35);
  visibility: hidden;
  opacity: 0;
  transform: translateY(-4px);
  transition: opacity 0.15s, transform 0.15s, visibility 0.15s;
}
.nav-menu-end { left: auto; right: 0; }
.nav-menu::before {                /* 메뉴 이름과 메뉴 사이 빈틈에서도 마우스가 떨어지지 않게 */
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: -12px;
  height: 12px;
}
.nav-item:hover .nav-menu,
.nav-item:focus-within .nav-menu,
.nav-caret[aria-expanded="true"] + .nav-menu { visibility: visible; opacity: 1; transform: none; }
.nav-menu a {
  display: block;
  padding: 8px 16px;
  color: var(--ink);
  font-size: 14px;
  font-weight: 500;
  white-space: nowrap;
  text-decoration: none;
}
.nav-menu a:hover { background: var(--brand-soft); color: var(--brand); }
.nav-menu a[aria-current="page"] { color: var(--brand); font-weight: 700; box-shadow: inset 3px 0 0 var(--brand); }

/* 테마 버튼: 머리띠 위에서 눈에 덜 띄게 아이콘만 작게 (이름은 main.js 가 aria-label 로 붙인다) */
.controls { display: flex; gap: 6px; }
.controls button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  padding: 0;
  border: 1px solid transparent;
  border-radius: 50%;
  background: transparent;
  color: var(--masthead-soft);
  opacity: 0.7;
  cursor: pointer;
  transition: opacity 0.15s, border-color 0.15s;
}
.controls button:hover { opacity: 1; border-color: rgba(255, 255, 255, 0.35); }
.controls .lbl { display: none; }
.controls .ico { display: inline-flex; }
.controls .ico svg { width: 14px; height: 14px; }

/* 키보드 이동 시 포커스 표시 */
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible {
  outline: 2px solid var(--brand);
  outline-offset: 2px;
}

.sr-only {                   /* 화면에는 안 보이고 스크린 리더만 읽는 글자 */
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

/* ══ 리서치형 본문 공통 (index.html · about.html) ═════════════════════ */
.container { max-width: calc(var(--page-max) + 48px); margin: 0 auto; padding: 32px 24px 56px; }
.sec-head { display: flex; align-items: baseline; flex-wrap: wrap; gap: 8px 20px; margin-bottom: 18px; }
.sec-title { font-family: var(--serif); font-size: clamp(22px, 2.1vw, 28px); font-weight: 700; letter-spacing: -0.01em; color: var(--title-ink); }
.sec-title.sm { font-size: 21px; }
.muted-title { color: var(--ink-soft); }
.sec-sub { font-size: 13px; color: var(--ink-soft); }
.sec-tools { margin-left: auto; }
.sec-head .more { margin-left: auto; }
.more { color: var(--brand); font-weight: 600; text-decoration: none; white-space: nowrap; }
.more:hover { text-decoration: underline; }
.rule { border: 0; border-top: 1px solid var(--line-strong); margin: 40px 0; }
.meta { font-size: 14px; color: var(--ink-soft); }
.byline { margin-top: 18px; font-size: 14px; color: var(--ink-soft); }
.split { display: grid; grid-template-columns: minmax(0, 1fr) minmax(280px, 380px); gap: 0 48px; }
.side { border-left: 1px solid var(--line-strong); padding-left: 32px; }
.side-list { list-style: none; padding: 0; }
.side-list li { margin-bottom: 20px; }
.side-title { display: block; color: var(--ink); font-size: 16.5px; font-weight: 500; line-height: 1.45; text-decoration: none; }
.side-title:hover { color: var(--brand); text-decoration: underline; }
.side-list .meta { margin-top: 3px; }
.bullets { padding-left: 20px; }
.bullets li { margin: 0 0 12px; font-size: 15.5px; line-height: 1.6; }
.bullets li::marker { color: var(--ink-soft); }
.bullets a { color: var(--ink); font-weight: 500; text-decoration: none; }
.bullets a:hover { color: var(--brand); text-decoration: underline; }
.data-note { margin-top: 20px; font-size: 12px; color: var(--ink-soft); }
.factor-error { margin: 12px 24px; color: var(--err-ink); font-size: 14px; }

/* 데이터를 불러오기 전 자리: 옅은 뼈대 + 흐르는 빛 */
.tile-placeholder {
  position: relative;
  height: 100%;
  min-height: 60px;
  display: grid;
  place-items: center;
  border-radius: 10px;
  color: var(--ink-soft);
  font-size: 13px;
  font-weight: 500;
  background:
    linear-gradient(var(--skeleton), var(--skeleton)) 0 0 / 38% 14px no-repeat,
    linear-gradient(var(--skeleton), var(--skeleton)) 0 24px / 22% 10px no-repeat,
    linear-gradient(var(--line), var(--line)) 0 100% / 100% 1px no-repeat;
}
.tile-placeholder::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(100deg, transparent 30%, var(--skeleton-hi) 50%, transparent 70%) -150% 0 / 60% 100% no-repeat;
  opacity: 0.7;
  animation: shimmer 2.4s ease-in-out infinite;
  pointer-events: none;
}
@keyframes shimmer { to { background-position: 250% 0; } }

/* 보기 설정 (factors.js filterBar): 동인 탭에서는 헤더 아래에 붙고, Overview 에서는 바탕 없이 글자형 */
.filter-bar {
  position: static;           /* 넓은 화면에서만 머리띠 아래에 고정 (아래 @media) */
  top: var(--header-h, 64px);
  z-index: 5;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  margin: 0 0 16px;
  padding: 10px 0;
  background: var(--header-bg);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--line);
}
.overview .filter-bar,
.sec-tools .filter-bar { position: static; margin: 0; padding: 0; background: none; backdrop-filter: none; border: 0; }
.seg-group { display: flex; align-items: center; gap: 8px; min-width: 0; }
.seg-label { font-size: 12px; font-weight: 600; color: var(--ink-soft); }
.seg { display: flex; gap: 2px; padding: 3px; border-radius: 9px; background: var(--chip-bg); overflow-x: auto; scrollbar-width: none; }
.seg button,
.metric-tabs button {
  flex: none;
  padding: 3px 10px;
  border: 0;
  border-radius: 7px;
  background: transparent;
  color: var(--ink-soft);
  font: inherit;
  font-size: 13px;
  font-weight: 600;
  white-space: nowrap;
  cursor: pointer;
}
.seg button:hover,
.metric-tabs button:hover { color: var(--ink); }
.seg button[aria-pressed="true"] { background: var(--card-bg); color: var(--ink); box-shadow: 0 1px 2px var(--shadow-strong), 0 0 0 1px var(--line); }

/* ══ Overview (index.html #view-overview, factors.js renderOverview) ═══════ */
/* 차트 값 고르기 (수준 / 전년동월 / 전월) */
.text-tabs { display: flex; justify-content: center; gap: 16px; margin-bottom: 6px; }
.text-tabs button {
  padding: 2px 0;
  border: 0;
  background: none;
  color: var(--ink-soft);
  font: inherit;
  font-size: 13px;
  cursor: pointer;
  box-shadow: inset 0 -2px 0 transparent;
}
.text-tabs button[aria-pressed="true"] { color: var(--title-ink); font-weight: 700; box-shadow: inset 0 -2px 0 var(--brand); }

/* 이달의 차트 */
.gow-note { margin-top: 12px; font-size: 14.5px; line-height: 1.6; }

/* 읽는 법 (about.html 의 '더 알아보기' 카드도 같은 모양) */
.guide-row { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 32px; }
.guide h3 { margin: 6px 0 8px; font-family: var(--serif); font-size: 18px; font-weight: 700; line-height: 1.4; color: var(--title-ink); }
.guide h3 a { color: inherit; text-decoration: none; }
.guide h3 a:hover { text-decoration: underline; }
.guide p:last-child { font-size: 14.5px; line-height: 1.65; }

/* ══ 동인 탭: 리서치 노트 (index.html #view-factor, factors.js renderFactor) ══ */
/* 맨 위 하위 탭 줄 (주택시장 지표 > 6개 동인) */
.subnav {
  display: flex;
  align-items: center;
  gap: 4px 2px;
  margin: -8px 0 24px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line-strong);
  overflow-x: auto;
  scrollbar-width: none;
}
.subnav::-webkit-scrollbar { display: none; }
.subnav-label { flex: none; margin-right: 10px; font-family: var(--serif); font-size: 15px; font-weight: 700; color: var(--title-ink); }
.subnav a {
  flex: none;
  padding: 4px 10px;
  color: var(--ink-soft);
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  white-space: nowrap;
  box-shadow: inset 0 -2px 0 transparent;
}
.subnav a:hover { color: var(--brand); }
.subnav a[aria-current="page"] { color: var(--title-ink); font-weight: 700; box-shadow: inset 0 -2px 0 var(--brand); }

.note-main > p { font-size: 15.5px; line-height: 1.7; }
.note-title { margin: 6px 0 8px; font-family: var(--serif); font-size: clamp(26px, 2.6vw, 36px); font-weight: 800; line-height: 1.25; color: var(--title-ink); }
.note-main > .note-dek { margin-bottom: 14px; font-size: 18px; font-weight: 600; color: var(--ink-soft); }
.note-sub { margin: 24px 0 10px; font-family: var(--serif); font-size: 20px; font-weight: 700; color: var(--title-ink); }

/* 요약표: 변수 × 지역 최신값 */
.summary-wrap {
  overflow-x: auto;
  background: var(--card-bg);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}
.summary { width: 100%; border-collapse: collapse; font-size: 13px; }
.summary caption { padding: 10px 14px 4px; text-align: left; font-size: 12px; color: var(--ink-soft); }
.summary th, .summary td { padding: 7px 14px; text-align: left; border-top: 1px solid var(--line); white-space: nowrap; }
.summary thead th { border-top: 0; font-size: 12px; color: var(--ink-soft); font-weight: 600; }
.summary tbody th { font-weight: 600; }
.summary tbody th a { color: var(--ink); text-decoration: none; }
.summary tbody th a:hover { color: var(--brand); text-decoration: underline; }
.summary .num { text-align: right; }
.summary .muted { color: var(--ink-soft); }
.summary .v { font-weight: 600; }
.summary .chg { color: var(--ink-soft); font-size: 12px; }
.summary .span { text-align: center; }
.scope-tag { margin-right: 8px; padding: 0 6px; border-radius: 5px; background: var(--chip-bg); color: var(--ink-soft); font-size: 11px; font-weight: 600; }
.summary tbody tr:hover { background: var(--chip-bg); }

/* 차트와 해설 카드 */
.var-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 560px), 1fr)); gap: 36px 48px; }
.var-card {
  scroll-margin-top: calc(var(--header-h, 64px) + 64px);
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-width: 0;
  padding-top: 18px;
  border-top: 1px solid var(--line-strong);
}
.card-headline { font-family: var(--serif); font-size: 20px; font-weight: 700; line-height: 1.4; color: var(--title-ink); }
.card-prose p { font-size: 14.5px; line-height: 1.65; }
.card-prose p + p { margin-top: 6px; }
.card-prose .muted { color: var(--ink-soft); font-size: 13.5px; }
.card-prose .note { padding: 6px 10px; background: var(--chip-bg); border-radius: var(--radius); font-size: 12.5px; color: var(--ink-soft); }
.metric-tabs { display: flex; flex-wrap: wrap; gap: 4px; }
.metric-tabs button { border-radius: var(--radius); box-shadow: inset 0 0 0 1px var(--line); }
.metric-tabs button[aria-pressed="true"] { background: var(--brand-soft); color: var(--brand); box-shadow: inset 0 0 0 1px var(--brand); }
.var-more summary { cursor: pointer; font-size: 12px; color: var(--ink-soft); }
.var-more summary:hover { color: var(--ink); }
.var-meta {
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: 4px 12px;
  margin: 8px 0 0;
  font-size: 12px;
  line-height: 1.5;
}
.var-meta dt { color: var(--ink-soft); }
.var-meta dd { margin: 0; word-break: keep-all; overflow-wrap: anywhere; }

/* ══ 차트 (charts.js lineChart · figure) ═════════════════════════════ */
.chart { position: relative; min-width: 0; }
.chart svg { display: block; max-width: 100%; touch-action: pan-y; }
.chart svg:focus-visible { outline: 2px solid var(--brand); outline-offset: 2px; border-radius: 6px; }
.chart-grid line { stroke: var(--line); stroke-width: 1; }
.chart-grid line.zero { stroke: var(--ink-soft); stroke-opacity: 0.6; }
.chart-grid text, .chart-axis text { fill: var(--ink-soft); font-size: 12px; font-family: inherit; }
.chart-axis line { stroke: var(--line-strong); stroke-width: 1; }
.chart-frame { fill: none; stroke: var(--line-strong); stroke-width: 1; }
.chart-vgrid { stroke: var(--line); stroke-width: 1; }
.chart-unit { fill: var(--ink-soft); font-size: 11px; }
.chart-line { fill: none; stroke-width: 2; stroke-linejoin: round; stroke-linecap: round; }
.chart-line-prov { stroke-dasharray: 3 4; }
.chart-prov-band { fill: var(--chip-bg); }
.chart-end { stroke: var(--card-bg); stroke-width: 2; }
.chart-cross { stroke: var(--ink-soft); stroke-width: 1; stroke-dasharray: 3 3; }
.chart-dot { stroke: var(--card-bg); stroke-width: 2; }
.chart-tip {
  position: absolute;
  z-index: 2;
  min-width: 120px;
  padding: 8px 10px;
  border-radius: 8px;
  background: var(--card-bg);
  border: 1px solid var(--line-strong);
  box-shadow: 0 8px 24px -8px var(--shadow-strong);
  font-size: 12px;
  pointer-events: none;
}
.chart-tip-head { margin-bottom: 4px; color: var(--ink-soft); }
.chart-tip-row { display: flex; align-items: center; gap: 6px; white-space: nowrap; }
.chart-tip-row strong { font-size: 13px; }
.chart-tip-row span:last-child { color: var(--ink-soft); }
.chart-tip-key { width: 12px; height: 2px; border-radius: 1px; }
.chart-empty { padding: 24px 0; text-align: center; font-size: 13px; color: var(--ink-soft); }

/* 리서치 차트 틀: 가운데 제목·부제, 플롯 안쪽 범례, 아래 자료 줄 */
.fig { margin: 0; }
.fig-title { display: flex; flex-direction: column; align-items: center; text-align: center; margin-bottom: 2px; line-height: 1.35; }
.fig-title strong { font-size: 14px; font-weight: 600; color: var(--title-ink); }
.fig-title span { font-size: 12px; color: var(--ink-soft); }
.fig-plot { position: relative; }
.fig-legend {
  position: absolute;
  z-index: 1;
  list-style: none;
  padding: 2px 6px;
  background: color-mix(in srgb, var(--card-bg) 85%, transparent);
  font-size: 11.5px;
  line-height: 1.5;
  color: var(--ink-soft);
  pointer-events: none;
}
.fig-legend li { display: flex; align-items: center; gap: 6px; }
.fig-legend span { width: 16px; height: 2px; }
.fig-source { margin-top: 2px; padding-left: 4px; font-size: 11.5px; color: var(--ink-soft); }

/* ══ Home (index.html #view-home, home.js) ═══════════════════════════ */
.filter-inline { display: flex; flex-wrap: wrap; gap: 8px 20px; }

/* 시도별 가격 상승률 지도 + 순위표 */
.map-layout { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(260px, 1fr); gap: 32px; align-items: start; }
.map-caption { margin-bottom: 6px; font-size: 14px; color: var(--ink-soft); }
.map-caption strong { color: var(--title-ink); }
.map-plot { position: relative; max-width: 520px; margin: 0 auto; }
.korea-map { display: block; width: 100%; height: auto; }
.map-region { stroke: var(--card-bg); stroke-width: 0.8; transition: opacity 0.15s; cursor: default; }
.korea-map:hover .map-region:not(.is-on) { opacity: 0.55; }
.map-region.is-on { stroke: var(--ink); stroke-width: 1.4; }
.map-label { font-size: 11px; font-weight: 600; text-anchor: middle; dominant-baseline: middle; fill: var(--ink); paint-order: stroke; stroke: var(--card-bg); stroke-width: 3px; pointer-events: none; }
.map-tip { min-width: 0; }
.map-legend { display: flex; flex-wrap: wrap; justify-content: center; gap: 4px 10px; margin-top: 10px; font-size: 11.5px; color: var(--ink-soft); }
.legend-item { display: inline-flex; align-items: center; gap: 4px; white-space: nowrap; }
.legend-swatch { width: 14px; height: 10px; border-radius: 2px; box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.08); }
.rank-list { list-style: none; padding: 0; }
.rank-row {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr) 64px;
  align-items: center;
  gap: 10px;
  padding: 3px 6px;
  border-radius: 4px;
  font-size: 13px;
  cursor: default;
}
.rank-row.is-on, .rank-row:focus-visible { background: var(--chip-bg); outline: none; }
.rank-name { font-weight: 600; }
.rank-bar { position: relative; height: 10px; background: linear-gradient(var(--line-strong), var(--line-strong)) 50% 0 / 1px 100% no-repeat; }
.rank-fill { position: absolute; top: 1px; bottom: 1px; border-radius: 2px; }
.rank-value { text-align: right; font-weight: 600; }

/* KHMI Dashboard: 주택시장 가격 동향 · 이달의 차트 · 주요 정책 동향 세 칸 (칸 사이 세로선) */
.home-row { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, 1.15fr) minmax(0, 0.85fr); }
.home-col { min-width: 0; padding: 0 28px; border-left: 1px solid var(--line-strong); }
.home-col:first-child { padding-left: 0; border-left: 0; }
.home-col:last-child { padding-right: 0; }
.col-head { display: flex; align-items: baseline; gap: 12px; }
.col-head .more { margin-left: auto; font-size: 13px; }
.col-title { margin-bottom: 10px; font-family: var(--serif); font-size: 19px; font-weight: 700; color: var(--title-ink); }
.col-headline { margin: 4px 0 12px; font-family: var(--serif); font-size: 18px; font-weight: 700; line-height: 1.4; color: var(--title-ink); }
.bullets.compact li { margin-bottom: 6px; font-size: 14px; line-height: 1.55; }
.home-col .bullets { margin-top: 12px; }
.home-col .gow-note { font-size: 14px; }

/* 주요 정책 동향 (좁은 칸 목록) */
.policy-item { padding: 12px 0; border-top: 1px solid var(--line); }
.policy-item:first-child { padding-top: 0; border-top: 0; }
.policy-item h4 { margin: 4px 0 6px; font-family: var(--serif); font-size: 16px; font-weight: 700; line-height: 1.4; }
.policy-item h4 a { color: var(--title-ink); text-decoration: none; }
.policy-item h4 a:hover { text-decoration: underline; }
.policy-item .meta { font-size: 12.5px; }
.policy-sum {                /* 요약은 두 줄까지만 */
  font-size: 13.5px;
  line-height: 1.55;
  color: var(--ink-soft);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ══ 부동산 대시보드 (index.html #view-dash, factors.js) ══════════════════ */
/* Overview: 동인별 코멘터리 (헤드라인 + 차트 + 짧은 설명) */
.ov-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 40px 48px; }
.ov-item { min-width: 0; padding-top: 16px; border-top: 1px solid var(--line-strong); }
.ov-item h3 { margin: 4px 0 10px; font-family: var(--serif); font-size: 20px; font-weight: 700; line-height: 1.4; }
.ov-title { color: var(--title-ink); text-decoration: none; }
.ov-title:hover { text-decoration: underline; }
.ov-body { margin-top: 10px; font-size: 14.5px; line-height: 1.65; }
.ov-q { margin-top: 4px; font-size: 13.5px; color: var(--ink-soft); }
.ov-item .byline { margin-top: 8px; }

/* 동인 화면 머리: 제목 한 줄 + 접힌 설명들 */
.factor-head { display: flex; align-items: baseline; flex-wrap: wrap; gap: 4px 16px; }
.factor-head .note-title { margin: 0; font-size: clamp(22px, 2.2vw, 28px); }
.factor-head .note-dek { margin: 0; font-size: 15px; font-weight: 600; color: var(--ink-soft); }
.fold-row { display: flex; flex-wrap: wrap; gap: 8px 24px; margin: 10px 0 6px; }
.fold-row > .fold { flex: 1 1 100%; }
.fold > summary {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 0;
  color: var(--brand);
  font-size: 13.5px;
  font-weight: 600;
  cursor: pointer;
  list-style: none;
}
.fold > summary::-webkit-details-marker { display: none; }
.fold > summary::before {          /* ▸ / ▾ */
  content: "";
  width: 6px;
  height: 6px;
  border-right: 1.6px solid currentColor;
  border-bottom: 1.6px solid currentColor;
  transform: rotate(-45deg);
  transition: transform 0.15s;
}
.fold[open] > summary::before { transform: rotate(45deg); }
.fold > summary:hover { text-decoration: underline; }
.fold[open] > :not(summary) { margin-top: 8px; }
.fold-body > p { font-size: 15px; line-height: 1.7; }
.var-card .fold > summary { font-size: 12.5px; color: var(--ink-soft); }
.var-card .fold[open] { padding: 10px 12px; background: var(--chip-bg); border-radius: var(--radius); }

/* 17개 시도 토글 (가로 스크롤) */
.sido-picker { flex: 1 1 100%; min-width: 0; }
.sido-hint { margin-bottom: 4px; font-size: 12px; font-weight: 600; color: var(--ink-soft); }
.chip-row { display: flex; gap: 6px; overflow-x: auto; padding-bottom: 4px; scrollbar-width: thin; }
.chip {
  flex: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 11px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: var(--card-bg);
  color: var(--ink-soft);
  font: inherit;
  font-size: 13px;
  font-weight: 600;
  white-space: nowrap;
  cursor: pointer;
}
.chip:hover { border-color: var(--brand); color: var(--ink); }
.chip[aria-pressed="true"] { border-color: var(--title-ink); color: var(--title-ink); background: var(--brand-soft); }
.chip-dot { width: 8px; height: 8px; border-radius: 50%; box-shadow: inset 0 0 0 1px var(--line-strong); }
.chip[aria-pressed="true"] .chip-dot { box-shadow: none; }

/* ══ About (about.html) ══════════════════════════════════════════════ */
.about-origin {
  margin: 4px 0 8px;
  padding: 12px 16px;
  border-left: 3px solid var(--masthead-btn);
  background: var(--brand-soft);
  font-size: 15.5px;
  font-weight: 600;
  color: var(--title-ink);
}
.about-sec { margin-top: 8px; scroll-margin-top: calc(var(--header-h, 110px) + 16px); }
.about-sec > p { font-size: 15.5px; line-height: 1.7; }
.about-list { display: grid; grid-template-columns: 140px minmax(0, 1fr); gap: 12px 24px; margin-top: 14px; }
.about-list dt { font-weight: 700; color: var(--title-ink); }
.about-list dt a { color: inherit; }
.about-list dd { margin: 0; font-size: 15px; line-height: 1.7; }
.about #project { scroll-margin-top: calc(var(--header-h, 110px) + 16px); }

/* ── API 연동 실습 페이지 (demo.html) ─────────────────── */
.page { max-width: 760px; margin: 0 auto; padding: 36px 20px 8px; }
.lead { margin-bottom: 10px; font-size: 16px; }
.endpoint { font-size: 13px; color: var(--ink-soft); word-break: break-all; }
code {
  font-family: var(--mono);
  background: var(--chip-bg);
  padding: 2px 7px;
  border-radius: 6px;
  font-size: 0.9em;
}

.status {
  position: sticky;
  top: calc(var(--header-h, 124px) + 8px);   /* 머리띠 바로 아래 (머리띠 높이는 main.js 가 잰다) */
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 20px 0;
  padding: 10px 14px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: var(--card-bg);
  font-size: 14px;
  box-shadow: 0 1px 2px var(--shadow);
}
.status::before {            /* 상태를 나타내는 작은 점 */
  content: "";
  flex: none;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--ink-soft);
}
.status.loading { border-color: var(--loading-line); background: var(--loading-bg); }
.status.loading::before { background: var(--loading-line); animation: pulse 1.2s ease-in-out infinite; }
.status.ok      { border-color: var(--brand); background: var(--ok-bg); }
.status.ok::before { background: var(--brand); }
.status.error   { border-color: var(--err-line); background: var(--err-bg); color: var(--err-ink); }
.status.error::before { background: var(--err-line); }
@keyframes pulse { 50% { opacity: 0.3; } }

.panel {
  background: var(--card-bg);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px 24px;
  margin: 16px 0;
  box-shadow: 0 1px 2px var(--shadow), 0 8px 24px -12px var(--shadow-strong);
  transition: background-color 0.2s, border-color 0.2s;
}
.panel h2 {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 17px;
  letter-spacing: -0.01em;
  margin-bottom: 14px;
}
.method {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 600;
  color: var(--brand);
  background: var(--brand-soft);
  padding: 2px 8px;
  border-radius: 6px;
  white-space: nowrap;
}

.panel button {
  font: inherit;
  font-size: 14px;
  font-weight: 600;
  height: 38px;
  padding: 0 18px;
  border: 0;
  border-radius: 10px;
  background: var(--brand);
  color: var(--on-brand);
  cursor: pointer;
  box-shadow: 0 1px 2px var(--shadow-strong), inset 0 1px 0 rgba(255, 255, 255, 0.12);
  transition: background-color 0.15s, transform 0.1s;
}
.panel button:hover { background: var(--brand-hover); }
.panel button:active { transform: translateY(1px); }
.panel button.secondary { background: var(--chip-bg); color: var(--ink); }
.panel button.secondary:hover { background: var(--chip-hover); }
.panel .row { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.panel input {
  font: inherit;
  font-size: 14px;
  height: 38px;
  padding: 0 12px;
  border: 1px solid var(--line-strong);
  border-radius: 10px;
  background: var(--input-bg);
  color: var(--ink);
  transition: border-color 0.15s, box-shadow 0.15s;
}
.panel input:focus-visible { outline: none; border-color: var(--brand); box-shadow: 0 0 0 3px var(--brand-soft); }

.out {
  margin-top: 14px;
  padding: 14px 16px;
  background: var(--out-bg);
  color: #d9dee7;
  border: 1px solid var(--out-line);
  border-radius: 10px;
  font-family: var(--mono);
  font-size: 12.5px;
  line-height: 1.65;
  overflow-x: auto;
  white-space: pre-wrap;
  max-height: 320px;
}
.hint { margin-top: 12px; font-size: 13px; color: var(--ink-soft); }

/* 푸터 */
.site-footer {
  text-align: center;
  padding: 24px 20px 48px;
  font-size: 13px;
  color: var(--ink-soft);
}

/* ══ 화면 폭에 따른 조정 (넓은 → 좁은 순) ═══════════════════════════ */
@media (min-width: 900px) {
  .site-header { flex-wrap: nowrap; }
  .filter-bar { position: sticky; }   /* 좁은 화면에서는 시도 토글까지 붙으면 화면을 많이 가리므로 고정하지 않는다 */
}
@media (max-width: 1100px) {
  .home-row { grid-template-columns: repeat(2, minmax(0, 1fr)); row-gap: 32px; }
  .home-col:nth-child(3) { grid-column: 1 / -1; padding: 24px 0 0; border-left: 0; border-top: 1px solid var(--line-strong); }
  .map-layout { grid-template-columns: 1fr; }
  .guide-row { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 900px) {
  .ov-grid { grid-template-columns: 1fr; }
  .split { grid-template-columns: 1fr; }
  .side { border-left: 0; padding-left: 0; border-top: 1px solid var(--line-strong); padding-top: 24px; margin-top: 28px; }
}
@media (max-width: 720px) {
  .site-header { padding: 12px 16px; }
  .site-header h1::after { font-size: 9.5px; }
  .site-header h1::before { width: 138px; height: 79px; }
  .header-right { width: 100%; justify-content: space-between; gap: 6px; }
  .main-nav { gap: 0; }
  .main-nav > a,
  .nav-top,
  .nav-item .nav-top { font-size: 13px; padding: 6px 5px; }
  .nav-caret { width: 16px; }
  .nav-menu { min-width: 200px; }
  .container { padding: 20px 16px 40px; }
  .rule { margin: 28px 0; }
  .filter-bar { gap: 6px 12px; }
  .seg-group { max-width: 100%; }
  .guide-row { grid-template-columns: 1fr; gap: 24px; }
  .home-row { grid-template-columns: 1fr; }
  .home-col, .home-col:nth-child(3) { padding: 24px 0 0; border-left: 0; border-top: 1px solid var(--line-strong); }
  .home-col:first-child { padding-top: 0; border-top: 0; }
  .var-grid { gap: 28px; }
  .about-list { grid-template-columns: 1fr; gap: 4px; }
  .about-list dd { margin-bottom: 12px; }
}
@media (max-width: 380px) {
  .main-nav > a,
  .nav-top,
  .nav-item .nav-top { font-size: 12px; padding: 6px 3px; }
  .nav-caret { width: 14px; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}