/* 장기요양보험 급여 대시보드 — 데이터가 주인공, 장식은 최소화 */

:root {
  --bg: #ffffff;
  --bg-alt: #f8fafc;
  --card-bg: #ffffff;
  --text: #1e293b;
  --text-muted: #64748b;
  --border: #e2e8f0;
  --primary: #2563eb;
  --primary-soft: #dbeafe;
  --accent: #ea580c;
  --accent-soft: #ffedd5;
  --grey: #cbd5e1;
  --focus: #2563eb;
  --radius: 10px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f172a;
    --bg-alt: #131f35;
    --card-bg: #16233c;
    --text: #e2e8f0;
    --text-muted: #94a3b8;
    --border: #2c3e5c;
    --primary: #60a5fa;
    --primary-soft: #1e3a5f;
    --accent: #fb923c;
    --accent-soft: #4a2c14;
    --grey: #475569;
    --focus: #93c5fd;
  }
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, "Segoe UI", "Malgun Gothic", sans-serif;
  line-height: 1.6;
  overflow-x: hidden; /* 375px에서 가로 스크롤 방지 — 넓은 차트는 각 카드 내부에서만 스크롤 */
}

.wrap {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--primary);
  color: #fff;
  padding: 8px 14px;
  z-index: 100;
}
.skip-link:focus { left: 8px; top: 8px; }

a { color: var(--primary); }

:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 2px;
}

/* ---------- 헤더 ---------- */
.hero {
  padding: 40px 0 28px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-alt);
}
.eyebrow {
  margin: 0 0 8px;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--primary);
  text-transform: uppercase;
}
.hero h1 {
  margin: 0 0 14px;
  font-size: clamp(1.5rem, 4vw, 2.2rem);
  line-height: 1.3;
}
.lede {
  margin: 0;
  max-width: 780px;
  color: var(--text-muted);
  font-size: 1rem;
}

/* ---------- KPI 스트립 ---------- */
.kpi-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 14px;
  margin: 24px auto;
}
.kpi-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 18px;
}
.kpi-label {
  margin: 0 0 6px;
  font-size: 0.82rem;
  color: var(--text-muted);
}
.kpi-value {
  margin: 0 0 4px;
  font-size: 1.6rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}
.kpi-sub {
  margin: 0;
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ---------- 오류 배너 ---------- */
.fatal-error {
  max-width: 1200px;
  margin: 16px auto;
  padding: 14px 18px;
  border: 1px solid #dc2626;
  background: #fef2f2;
  color: #991b1b;
  border-radius: var(--radius);
}
@media (prefers-color-scheme: dark) {
  .fatal-error { background: #3f1414; color: #fecaca; border-color: #dc2626; }
}
.fatal-error .fatal-detail { font-size: 0.8rem; opacity: 0.85; margin: 4px 0 0; }

/* ---------- 섹션 공통 ---------- */
.section { padding: 36px 0; }
.section h2 {
  font-size: 1.3rem;
  margin: 0 0 18px;
}
.section h2 .q {
  display: block;
  font-size: 0.85rem;
  font-weight: 400;
  color: var(--text-muted);
  margin-top: 4px;
}

/* ---------- 컨트롤 ---------- */
.controls {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  align-items: center;
  margin-bottom: 14px;
  padding: 14px 16px;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.control-group { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.metric-toggle { gap: 6px; }
.metric-btn {
  border: 1px solid var(--border);
  background: var(--card-bg);
  color: var(--text);
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 0.82rem;
  cursor: pointer;
}
.metric-btn.is-active {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}
.year-control label { font-size: 0.85rem; color: var(--text-muted); display: flex; gap: 6px; }
.year-control strong { color: var(--text); font-variant-numeric: tabular-nums; }
#play-btn {
  border: 1px solid var(--primary);
  background: var(--card-bg);
  color: var(--primary);
  width: 34px; height: 34px;
  border-radius: 50%;
  cursor: pointer;
  font-size: 0.9rem;
  line-height: 1;
}
#year-slider { width: 160px; }
#region-select {
  border: 1px solid var(--border);
  background: var(--card-bg);
  color: var(--text);
  padding: 6px 10px;
  border-radius: 6px;
  font-size: 0.85rem;
  max-width: 100%;
}

.notice {
  background: var(--accent-soft);
  border: 1px solid var(--accent);
  color: var(--text);
  padding: 10px 14px;
  border-radius: 8px;
  font-size: 0.85rem;
  margin: 0 0 16px;
}

/* ---------- 차트 카드 ---------- */
.chart-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 16px;
}
.chart-card {
  margin: 0;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px 16px;
  min-width: 0; /* 그리드 안에서 넘치지 않도록 */
}
.chart-card.wide { grid-column: 1 / -1; }
.chart-card h3 { margin: 0 0 4px; font-size: 1rem; }
.chart-note { margin: 0 0 10px; font-size: 0.8rem; color: var(--text-muted); }

.chart { width: 100%; height: 340px; }
.chart-tall { height: 320px; }
.chart-tall-xl { height: 520px; }

.chart-scroll { overflow-x: auto; }
.chart-scroll .chart { min-width: 720px; }

/* 차트 아래 용어 설명 — 등급 이름을 모르면 차트의 꺾임을 읽을 수 없다 */
.glossary {
  margin: 14px 0 0;
  padding: 12px 16px;
  border-left: 3px solid var(--border);
  background: var(--bg-alt);
  border-radius: 0 var(--radius) var(--radius) 0;
  font-size: 0.85rem;
  line-height: 1.6;
}
.glossary dt {
  font-weight: 700;
  color: var(--text);
}
.glossary dd {
  margin: 2px 0 10px;
  padding-left: 0;
  color: var(--text-muted);
}
.glossary dd:last-child { margin-bottom: 0; }

/* ---------- 카토그램 ---------- */
.cartogram {
  display: grid;
  gap: 4px;
  aspect-ratio: 5 / 6;
  margin-bottom: 8px;
}
.cartogram-cell {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 0.7rem;
  line-height: 1.25;
  padding: 2px;
  cursor: pointer;
  color: var(--text);
  transition: transform 0.1s ease;
  min-width: 0;
  min-height: 0;
}
.cartogram-cell:hover { transform: scale(1.04); }
.cartogram-cell.is-selected { outline: 3px solid var(--accent); outline-offset: -3px; }
.cartogram-cell.is-null { color: var(--text-muted); font-style: italic; }
.cartogram-cell .cell-short { font-weight: 700; }
.cartogram-cell .cell-value { font-variant-numeric: tabular-nums; }
.cartogram-cell.is-dark-cell { color: #f8fafc; }
.cartogram-hint { margin: 0; font-size: 0.75rem; color: var(--text-muted); }

/* ---------- 한계 섹션 ---------- */
/* ---------- 결론 ---------- */
.findings {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: finding;
}
.findings > li {
  counter-increment: finding;
  position: relative;
  padding: 20px 0 20px 46px;
  border-top: 1px solid var(--border);
}
.findings > li::before {
  content: counter(finding);
  position: absolute;
  left: 0;
  top: 20px;
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  font-size: 0.85rem;
  font-weight: 700;
}
.findings p { margin: 0 0 10px; }
.findings p:last-child { margin-bottom: 0; }

.finding-head {
  font-size: 1.15rem;
  font-weight: 700;
  line-height: 1.4;
}

/* 숫자가 먼저 눈에 들어오도록 식처럼 배치 */
.finding-eq {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 10px;
  padding: 12px 14px;
  background: var(--bg-alt);
  border-radius: var(--radius);
  font-size: 0.85rem;
  color: var(--text-muted);
}
.finding-eq b {
  font-size: 1.25rem;
  color: var(--primary);
  font-variant-numeric: tabular-nums;
}
.finding-eq em { font-style: normal; color: var(--text-muted); padding: 0 2px; }

.findings b[data-fill] { color: var(--primary); font-variant-numeric: tabular-nums; }

.findings-caveat {
  margin: 18px 0 0;
  padding: 14px 16px;
  border-left: 3px solid var(--accent);
  background: var(--accent-soft);
  border-radius: 0 var(--radius) var(--radius) 0;
  font-size: 0.87rem;
  line-height: 1.65;
}

.limitations {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 18px;
  background: var(--bg-alt);
}
.limitations summary {
  cursor: pointer;
  font-weight: 700;
  font-size: 1.05rem;
}
.limitations ul { margin: 12px 0 0; padding-left: 20px; }
.limitations li { margin-bottom: 8px; font-size: 0.9rem; }

/* ---------- 푸터 ---------- */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 24px 0 40px;
  color: var(--text-muted);
  font-size: 0.8rem;
}
.site-footer p { margin: 4px 0; }
.site-footer code {
  background: var(--bg-alt);
  padding: 1px 5px;
  border-radius: 4px;
}

/* ---------- 반응형 (375px까지) ---------- */
@media (max-width: 480px) {
  .kpi-value { font-size: 1.3rem; }
  #year-slider { width: 120px; }
  .chart { height: 280px; }
  .chart-tall-xl { height: 460px; }
  .cartogram-cell { font-size: 0.62rem; }
}