:root {
  --bg: #0d1117;
  --surface: #161b22;
  --border: #30363d;
  --text: #e6edf3;
  --text-muted: #7d8590;
  --green: #3fb950;
  --red: #f85149;
  --blue: #58a6ff;
  --yellow: #d29922;
}

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Pretendard', 'Noto Sans KR', sans-serif;
  font-size: 14px;
}

header {
  padding: 16px 24px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 16px;
}
header h1 { font-size: 16px; font-weight: 600; }
.status-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--text-muted);
}
.status-dot.live { background: var(--green); }
#last-update { color: var(--text-muted); font-size: 12px; }

.controls {
  padding: 12px 24px;
  display: flex;
  gap: 8px;
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
  align-items: center;
}

.btn-group { display: flex; gap: 4px; }
.btn {
  padding: 5px 14px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 13px;
  transition: all .15s;
}
.btn:hover { border-color: var(--blue); color: var(--text); }
.btn.active { background: var(--blue); border-color: var(--blue); color: #fff; }
.btn-run {
  margin-left: auto;
  border-color: var(--green);
  color: var(--green);
}
.btn-run:hover { background: var(--green); color: #fff; }

.chart-section { padding: 16px 24px 0; }
.chart-header {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 8px;
}
.price-display {
  font-size: 28px;
  font-weight: 700;
}
.price-display.up   { color: var(--red); }
.price-display.down { color: var(--blue); }
.price-change { font-size: 14px; color: var(--text-muted); }

#chart-container {
  width: 100%;
  height: 420px;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--border);
}

.table-section {
  padding: 20px 24px;
}
.table-section h2 { font-size: 14px; font-weight: 600; margin-bottom: 10px; }

.complex-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
.complex-table th {
  text-align: left;
  padding: 8px 12px;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
  font-weight: 500;
  white-space: nowrap;
}
.complex-table td {
  padding: 8px 12px;
  border-bottom: 1px solid var(--border);
}
.complex-table tr:hover td { background: var(--surface); }
.complex-table .rank { color: var(--text-muted); text-align: right; }
.complex-table .price { text-align: right; font-variant-numeric: tabular-nums; }
.complex-table .price.na { color: var(--text-muted); }

.district-section {
  padding: 20px 24px;
  border-top: 1px solid var(--border);
}
.district-section h2 { font-size: 14px; font-weight: 600; margin-bottom: 8px; }
.subtitle { color: var(--text-muted); font-size: 11px; font-weight: 400; }

.district-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 10px;
}
.district-legend-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--text);
}
.district-legend-dot {
  width: 12px;
  height: 3px;
  border-radius: 2px;
}

#district-chart-container {
  width: 100%;
  height: 260px;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--border);
}

.district-legend-name { font-weight: 500; }
.district-legend-meta { color: var(--text-muted); font-size: 11px; margin-left: 2px; }

.complex-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin-bottom: 10px;
}
.btn-filter {
  padding: 4px 12px;
  font-size: 12px;
}