:root {
  /* Light Theme (Default) */
  --bg-main: #f4f6ef;
  --bg-gradient: linear-gradient(145deg, #f7faf3 0%, #edf4ef 58%, #f5f1e8 100%);
  --text-main: #162724;
  --text-sub: #51635f;
  --hero-title: #123f32;
  --hero-sub: #2f4b45;
  --panel: rgba(255, 255, 255, 0.9);
  --panel-border: rgba(23, 85, 67, 0.16);
  --shadow: 0 24px 60px rgba(15, 45, 36, 0.11);
  --c-hwagok: #ea580c;
  --c-hwagok-soft: rgba(234, 88, 12, 0.25);
  --c-balsan: #0f766e;
  --c-balsan-soft: rgba(15, 118, 110, 0.27);
  --c-district: #2b4c7e;
  --c-soft-line: rgba(22, 73, 58, 0.15);
  --card-bg: #fbfffd;
  --card-item-bg: #f5fbf8;
  --table-head-bg: #f4faf7;
  --table-border: rgba(25, 77, 62, 0.08);
  --highlight-bg: #f3faf5;
  --toggle-bg: #f7faf9;
  --toggle-text: #21453a;
}

[data-theme='dark'] {
  --bg-main: #0f172a;
  --bg-gradient: linear-gradient(145deg, #0f172a 0%, #1e293b 58%, #0f172a 100%);
  --text-main: #f1f5f9;
  --text-sub: #94a3b8;
  --hero-title: #f8fafc;
  --hero-sub: #cbd5e1;
  --panel: rgba(30, 41, 59, 0.8);
  --panel-border: rgba(148, 163, 184, 0.2);
  --shadow: 0 24px 60px rgba(0, 0, 0, 0.4);
  --c-soft-line: rgba(148, 163, 184, 0.1);
  --card-bg: #1e293b;
  --card-item-bg: #334155;
  --table-head-bg: #334155;
  --table-border: rgba(148, 163, 184, 0.1);
  --highlight-bg: #334155;
  --toggle-bg: #334155;
  --toggle-text: #f1f5f9;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  min-height: 100vh;
  font-family: "Noto Sans KR", sans-serif;
  color: var(--text-main);
  background: var(--bg-gradient);
  padding: 26px 20px 36px;
  position: relative;
  transition: background 0.3s ease, color 0.3s ease;
}

.bg-shape {
  position: fixed;
  border-radius: 999px;
  filter: blur(74px);
  z-index: -1;
}

.bg-shape-a {
  width: 260px;
  height: 260px;
  background: rgba(249, 115, 22, 0.24);
  left: -80px;
  top: -14px;
}

.bg-shape-b {
  width: 350px;
  height: 350px;
  background: rgba(20, 184, 166, 0.22);
  right: -120px;
  bottom: -140px;
}

.hero {
  max-width: 1260px;
  margin: 0 auto;
  padding: 20px 12px;
}

.hero-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.hero-eyebrow {
  margin: 0;
  color: var(--text-sub);
  font-weight: 700;
  letter-spacing: 0.03em;
}

.theme-toggle {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  width: 44px;
  height: 44px;
  border-radius: 12px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
  padding: 0;
}

.theme-toggle:hover {
  transform: scale(1.05);
}

.theme-toggle-icon {
  width: 20px;
  height: 20px;
  background-color: var(--text-main);
  border-radius: 50%;
  position: relative;
  transition: all 0.3s ease;
}

[data-theme='dark'] .theme-toggle-icon {
  background-color: transparent;
  box-shadow: inset -6px -4px 0 0 var(--text-main);
}

.hero h1 {
  margin: 8px 0 0;
  font-family: "Black Han Sans", sans-serif;
  font-size: clamp(2.1rem, 5vw, 3.9rem);
  line-height: 1;
  font-weight: 400;
  color: var(--hero-title);
}

.hero-sub {
  margin: 10px 0 0;
  font-size: clamp(1.02rem, 2.1vw, 1.35rem);
  font-weight: 800;
  color: var(--hero-sub);
}

.hero-tags {
  margin-top: 15px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.hero-tags span {
  border: 1px solid var(--panel-border);
  background: var(--panel);
  border-radius: 999px;
  padding: 8px 12px;
  font-size: 0.86rem;
  font-weight: 700;
  color: var(--text-main);
}

.layout {
  max-width: 1260px;
  margin: 0 auto;
  display: grid;
  gap: 16px;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: 21px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(6px);
  transition: background 0.3s ease, border-color 0.3s ease;
}

.section-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
  padding: 14px 16px 10px;
}

.section-head.compact {
  padding-bottom: 4px;
}

.section-head h2 {
  margin: 0;
  font-size: clamp(1.14rem, 1.9vw, 1.54rem);
}

.section-head p {
  margin: 4px 0 0;
  color: var(--text-sub);
  font-size: 0.92rem;
}

.fit-btn {
  border: 0;
  border-radius: 12px;
  background: linear-gradient(135deg, #1d5a44 0%, #0f766e 100%);
  color: #fff;
  font-size: 0.86rem;
  font-weight: 800;
  padding: 10px 12px;
  cursor: pointer;
  transition: transform 0.2s ease;
}

.fit-btn:hover {
  transform: translateY(-1px);
}

.map-panel {
  padding: 0 12px 12px;
}

#district-map {
  width: 100%;
  min-height: 560px;
  height: min(78vh, 840px);
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--panel-border);
}

#district-map iframe {
  width: 100%;
  height: 100%;
  border: 0;
}

.map-message {
  width: 100%;
  height: 100%;
  min-height: 280px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 10px;
  text-align: center;
  padding: 18px;
  color: var(--text-main);
  background: var(--bg-gradient);
}

.map-message p {
  margin: 0;
  font-weight: 700;
  line-height: 1.45;
}

.map-message a {
  color: var(--c-balsan);
  font-size: 0.9rem;
  font-weight: 800;
}

.legend {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  padding: 10px 6px 2px;
  color: var(--text-main);
  font-size: 0.9rem;
  font-weight: 700;
}

.legend span {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

.map-nav-link {
  text-decoration: none;
  border: 1px solid var(--panel-border);
  background: var(--card-bg);
  color: var(--text-main);
  border-radius: 999px;
  padding: 7px 11px;
  font-size: 0.84rem;
  font-weight: 800;
}

.map-nav-link:hover {
  background: var(--card-item-bg);
}

.legend-dot {
  width: 12px;
  height: 12px;
  border-radius: 999px;
  display: inline-block;
}

.dot-hwagok {
  background: var(--c-hwagok);
}

.dot-balsan {
  background: var(--c-balsan);
}

.kpi-panel,
.button-panel,
.age-dong-panel,
.dong-panel,
.chart-panel,
.table-panel,
.rank-panel,
.source-panel {
  padding: 0 12px 12px;
}

.kpi-grid {
  padding: 8px 4px 2px;
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.kpi-item {
  padding: 13px 12px;
  border-radius: 14px;
  border: 1px solid var(--c-soft-line);
  background: var(--card-bg);
}

.kpi-item h3 {
  margin: 0;
  color: var(--text-sub);
  font-size: 0.82rem;
  font-weight: 700;
}

.kpi-value {
  margin-top: 7px;
  font-size: 1.22rem;
  font-weight: 900;
  letter-spacing: -0.02em;
}

.kpi-meta {
  margin-top: 4px;
  color: var(--text-sub);
  font-size: 0.82rem;
}

.kpi-value.up {
  color: #166534;
}

.kpi-value.down {
  color: #ef4444;
}

[data-theme='dark'] .kpi-value.up {
  color: #4ade80;
}

[data-theme='dark'] .kpi-value.down {
  color: #f87171;
}

.up {
  color: #166534;
}

.down {
  color: #ef4444;
}

[data-theme='dark'] .up {
  color: #4ade80;
}

[data-theme='dark'] .down {
  color: #f87171;
}

.dong-toggle-wrap {
  padding: 8px 4px 2px;
}

.dong-toggle-buttons {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.dong-toggle-btn {
  border: 1px solid var(--c-soft-line);
  border-radius: 999px;
  background: var(--toggle-bg);
  color: var(--toggle-text);
  font-size: 0.88rem;
  font-weight: 800;
  padding: 9px 14px;
  cursor: pointer;
}

.dong-toggle-btn.is-active {
  color: #fff;
  border-color: transparent;
  background: linear-gradient(135deg, #1d5a44 0%, #0f766e 100%);
}

.dong-stat-view {
  margin-top: 10px;
  border: 1px solid var(--c-soft-line);
  border-radius: 14px;
  background: var(--card-bg);
  padding: 12px;
}

.dong-stat-view h3 {
  margin: 0;
  font-size: 1.05rem;
}

.dong-stat-meta {
  margin-top: 6px;
  color: var(--text-sub);
  font-size: 0.85rem;
}

.dong-stat-grid {
  margin-top: 10px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}

.dong-stat-grid div {
  border-radius: 10px;
  padding: 8px;
  background: var(--card-item-bg);
}

.dong-stat-grid dt {
  margin: 0;
  color: var(--text-sub);
  font-size: 0.75rem;
  font-weight: 700;
}

.dong-stat-grid dd {
  margin: 2px 0 0;
  font-size: 0.93rem;
  font-weight: 800;
}

.age-dong-insights {
  padding: 8px 4px 2px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.age-insight-card {
  border: 1px solid var(--c-soft-line);
  border-radius: 14px;
  background: var(--card-bg);
  padding: 12px;
}

.age-insight-card h3 {
  margin: 0;
  font-size: 1.05rem;
}

.age-insight-meta {
  margin: 6px 0 0;
  color: var(--text-sub);
  font-size: 0.84rem;
}

.age-insight-grid {
  margin-top: 10px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.age-insight-grid div {
  border-radius: 10px;
  background: var(--card-item-bg);
  padding: 8px;
}

.age-insight-grid dt {
  margin: 0;
  color: var(--text-sub);
  font-size: 0.75rem;
  font-weight: 700;
}

.age-insight-grid dd {
  margin: 2px 0 0;
  font-size: 0.92rem;
  font-weight: 800;
}

.dong-cards {
  padding: 8px 4px 2px;
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.dong-card {
  border-radius: 15px;
  border: 1px solid var(--c-soft-line);
  background: var(--card-bg);
  padding: 14px 14px 10px;
}

.dong-card h3 {
  margin: 0;
  font-size: 1.1rem;
}

.dong-summary {
  margin: 8px 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.dong-summary span {
  border-radius: 999px;
  padding: 5px 9px;
  font-size: 0.78rem;
  font-weight: 700;
}

.dong-card.hwagok .dong-summary span {
  background: var(--c-hwagok-soft);
  color: var(--c-hwagok);
  border: 1px solid var(--c-hwagok-soft);
}

.dong-card.balsan .dong-summary span {
  background: var(--c-balsan-soft);
  color: var(--c-balsan);
  border: 1px solid var(--c-balsan-soft);
}

.dong-grid {
  margin-top: 10px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 7px;
}

.dong-grid div {
  border-radius: 10px;
  padding: 8px 8px;
  background: var(--card-item-bg);
}

.dong-grid dt {
  margin: 0;
  color: var(--text-sub);
  font-size: 0.76rem;
  font-weight: 700;
}

.dong-grid dd {
  margin: 2px 0 0;
  font-size: 0.93rem;
  font-weight: 800;
}

.chart-grid {
  padding: 10px 4px 2px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.chart-card {
  border-radius: 14px;
  border: 1px solid var(--c-soft-line);
  background: var(--card-bg);
  padding: 12px;
}

.chart-card.wide {
  grid-column: 1 / -1;
}

.chart-card h3 {
  margin: 0 0 8px;
  font-size: 0.96rem;
}

.chart-card canvas {
  width: 100%;
  min-height: 260px;
  max-height: 360px;
}

.table-wrap {
  margin: 8px 4px 2px;
  overflow-x: auto;
  border: 1px solid var(--c-soft-line);
  border-radius: 12px;
  background: var(--card-bg);
}

.table-wrap table {
  width: 100%;
  border-collapse: collapse;
  min-width: 760px;
}

.table-wrap th,
.table-wrap td {
  border-bottom: 1px solid var(--table-border);
  padding: 9px 10px;
  text-align: right;
  font-size: 0.88rem;
  white-space: nowrap;
}

.table-wrap th:first-child,
.table-wrap td:first-child,
.table-wrap th:nth-child(2),
.table-wrap td:nth-child(2) {
  text-align: left;
}

.table-wrap thead th {
  position: sticky;
  top: 0;
  z-index: 1;
  background: var(--table-head-bg);
  font-weight: 800;
  color: var(--text-main);
}

.table-wrap tbody tr.highlight td {
  background: var(--highlight-bg);
  font-weight: 800;
}

.rank-wrap table {
  min-width: 460px;
}

.badge-na {
  font-size: 0.7rem;
  font-weight: 900;
  color: #0f5132;
  background: #dcfce7;
  border: 1px solid rgba(22, 101, 52, 0.24);
  border-radius: 999px;
  padding: 2px 7px;
  margin-left: 6px;
}

[data-theme='dark'] .badge-na {
  background: #064e3b;
  color: #34d399;
  border-color: rgba(52, 211, 153, 0.2);
}

.source-list {
  margin: 6px 12px 0;
  padding-left: 18px;
  line-height: 1.6;
}

.source-list a {
  color: var(--c-balsan);
  font-weight: 700;
}

.source-note {
  margin: 10px 12px 4px;
  color: var(--text-sub);
  font-size: 0.84rem;
}

.footer {
  max-width: 1260px;
  margin: 12px auto 0;
  color: var(--text-sub);
  font-size: 0.84rem;
  padding: 0 6px;
}

@media (max-width: 1080px) {
  .kpi-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 900px) {
  body {
    padding: 16px 10px 26px;
  }

  .hero {
    padding: 14px 4px;
  }

  #district-map {
    min-height: 460px;
    height: min(72vh, 620px);
  }

  .section-head {
    flex-direction: column;
  }

  .fit-btn {
    width: 100%;
  }

  .kpi-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .dong-stat-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .age-dong-insights {
    grid-template-columns: 1fr;
  }

  .dong-cards {
    grid-template-columns: 1fr;
  }

  .chart-grid {
    grid-template-columns: 1fr;
  }

  .chart-card.wide {
    grid-column: auto;
  }
}

@media (max-width: 560px) {
  .kpi-grid {
    grid-template-columns: 1fr;
  }

  .dong-grid {
    grid-template-columns: 1fr;
  }

  .dong-stat-grid {
    grid-template-columns: 1fr;
  }

  .age-insight-grid {
    grid-template-columns: 1fr;
  }
}