:root {
  --bg: #0f1419;
  --panel: #1a2029;
  --panel-2: #232b36;
  --text: #e6edf3;
  --muted: #8b96a5;
  --accent: #f7a600; /* Bybit gold */
  --green: #16c784;
  --red: #ea3943;
  --border: #2d3640;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
}

header {
  padding: 28px 32px 12px;
  border-bottom: 1px solid var(--border);
}
header h1 { margin: 0; font-size: 22px; }
.subtitle { margin: 4px 0 0; color: var(--muted); font-size: 14px; }

main { max-width: 1000px; margin: 0 auto; padding: 24px 32px 60px; }

.controls {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: flex-end;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
}
.field { display: flex; flex-direction: column; gap: 6px; }
.field label { font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: .04em; }
select, input {
  background: var(--panel-2);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 9px 12px;
  font-size: 14px;
  min-width: 140px;
}
#days { min-width: 110px; }

button#run {
  background: var(--accent);
  color: #1a1a1a;
  font-weight: 600;
  border: none;
  border-radius: 8px;
  padding: 11px 22px;
  font-size: 14px;
  cursor: pointer;
  margin-left: auto;
}
button#run:disabled { opacity: .6; cursor: default; }

.status { color: var(--muted); font-size: 14px; min-height: 20px; margin: 16px 2px; }
.status.error { color: var(--red); }

.results { margin-top: 8px; }
.hidden { display: none; }

.metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 14px;
  margin-bottom: 22px;
}
.metric {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 18px 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.metric-label { font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: .04em; }
.metric-value { font-size: 28px; font-weight: 700; }
.metric.secondary .metric-value { font-size: 20px; font-weight: 600; }

.params { display: flex; flex-wrap: wrap; gap: 16px; align-items: flex-end; }
.params .field input { min-width: 110px; }


.chart-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 4px 2px 14px;
}
.toolbar-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}
.toggle-group { display: inline-flex; border: 1px solid var(--border); border-radius: 8px; overflow: hidden; }
.toggle {
  background: var(--panel-2);
  color: var(--muted);
  border: none;
  padding: 8px 14px;
  font-size: 13px;
  cursor: pointer;
}
.toggle.active { background: var(--accent); color: #1a1a1a; font-weight: 600; }
.checkbox { display: inline-flex; align-items: center; gap: 8px; font-size: 13px; color: var(--text); cursor: pointer; }
.checkbox input { accent-color: var(--accent); }
.ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 14px;
  font-size: 13px;
  cursor: pointer;
}
.ghost:hover { border-color: var(--accent); }

.chart-wrap {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 18px;
}
.main-chart { height: 420px; }
.sub-chart { height: 170px; margin-top: 14px; }

.run-meta { color: var(--muted); font-size: 12px; margin-top: 14px; }

.pos { color: var(--green); }
.neg { color: var(--red); }