:root {
  --bg: #0b0d11;
  --bg-elev: #11141a;
  --bg-card: #141821;
  --border: #1f242e;
  --border-hi: #2a3140;
  --text: #d9deea;
  --text-mute: #6b7382;
  --text-dim: #8a93a6;
  --accent: #5b8def;
  --accent-soft: #1d2940;
  --up: #22c55e;
  --down: #ef4444;
  --warn: #f59e0b;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }
html, body { height: 100%; margin: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font: 13px/1.4 -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", sans-serif;
  display: grid;
  grid-template-columns: 240px 1fr;
}

.rail {
  background: var(--bg-elev);
  border-right: 1px solid var(--border);
  padding: 18px 16px;
  display: flex;
  flex-direction: column;
  gap: 18px;
  overflow-y: auto;
}

.brand { line-height: 1; }
.brand-name { font-weight: 600; font-size: 16px; letter-spacing: 0.4px; }
.brand-sub { color: var(--text-mute); font-size: 11px; text-transform: uppercase; letter-spacing: 1.5px; margin-top: 4px; }

.control { display: flex; flex-direction: column; gap: 6px; }
.control label {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--text-mute);
}
.control select, .control input {
  background: var(--bg-card);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 8px 10px;
  font: inherit;
  font-family: var(--mono);
  font-size: 12px;
  outline: none;
}
.control select:focus, .control input:focus { border-color: var(--accent); }

.tabs { display: flex; flex-direction: column; gap: 4px; margin-top: 4px; }
.tab {
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-dim);
  padding: 9px 12px;
  border-radius: 6px;
  text-align: left;
  font: inherit;
  cursor: pointer;
  transition: background 0.1s, color 0.1s;
}
.tab:hover { background: var(--bg-card); color: var(--text); }
.tab.active { background: var(--accent-soft); color: var(--accent); border-color: var(--accent-soft); }

#view-controls { display: flex; flex-direction: column; gap: 12px; }

.chip-row { display: flex; flex-wrap: wrap; gap: 6px; }
.chip {
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-dim);
  border-radius: 999px;
  padding: 4px 10px;
  font: 11px/1 var(--mono);
  cursor: pointer;
  user-select: none;
}
.chip:hover { color: var(--text); border-color: var(--border-hi); }
.chip.on { background: var(--accent-soft); color: var(--accent); border-color: var(--accent-soft); }

.footer { margin-top: auto; }
.status {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text-mute);
  padding: 6px 8px;
  border-top: 1px solid var(--border);
}
.status.err { color: var(--down); }

.main { display: flex; flex-direction: column; min-width: 0; min-height: 0; }

.topbar {
  border-bottom: 1px solid var(--border);
  padding: 14px 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}
.series-toggle {
  display: flex;
  align-items: center;
  gap: 6px;
}
.series-toggle .section-label { margin-right: 4px; }
.series-toggle .chip { background: var(--bg-card); cursor: pointer; }
.title { font-size: 15px; font-weight: 600; letter-spacing: 0.2px; }
.summary { color: var(--text-dim); font-family: var(--mono); font-size: 12px; }
.summary .k { color: var(--text-mute); margin-right: 4px; }
.summary .v { color: var(--text); margin-right: 14px; }
.summary .v.up { color: var(--up); }
.summary .v.down { color: var(--down); }

.view { padding: 18px 22px; flex: 1; min-height: 0; overflow: auto; }
.view.hidden { display: none; }

.chart-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.chart-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
}
.chart-name { font-weight: 600; font-size: 13px; }
.chart-meta { color: var(--text-mute); font-family: var(--mono); font-size: 11px; }
.chart-host { width: 100%; height: 560px; }

#view-day .chart-host { height: calc(100vh - 200px); min-height: 420px; }

.atm-grid { display: grid; grid-template-rows: 1fr 1fr; gap: 14px; height: calc(100vh - 130px); }
.atm-grid .chart-host { height: 100%; min-height: 240px; flex: 1; }
.atm-grid .chart-card { min-height: 0; }

.grid-wrap { display: grid; grid-template-columns: repeat(auto-fill, minmax(360px, 1fr)); gap: 12px; }
.grid-wrap .chart-host { height: 240px; }

.symbol-pick { display: flex; flex-direction: column; gap: 8px; }
.symbol-pick .row { display: flex; gap: 6px; }
.symbol-pick .row > * { flex: 1; min-width: 0; }
.section-label {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--text-mute);
}

.empty {
  padding: 40px;
  text-align: center;
  color: var(--text-mute);
  font-family: var(--mono);
}