:root {
  --bg: #0b0f17;
  --panel: #111827;
  --border: #1e293b;
  --ink: #cbd5e1;
  --muted: #64748b;
  --accent: #38bdf8;
  --green: #34d399;
  --red: #f87171;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  background: var(--bg);
  color: var(--ink);
  font: 13px/1.45 -apple-system, "Segoe UI", Roboto, sans-serif;
}

#layout { display: flex; height: 100vh; }

#chart-wrap { flex: 1 1 auto; position: relative; min-width: 0; }
#chart { position: absolute; inset: 0; }

#legend {
  position: absolute;
  top: 8px; left: 8px;
  z-index: 5;
  pointer-events: none;
  font-size: 12px;
  color: var(--muted);
}
#legend .chip { margin-right: 10px; }

#sidebar {
  flex: 0 0 320px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 8px;
  overflow-y: auto;
  background: var(--bg);
  border-left: 1px solid var(--border);
}

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 8px 10px;
  flex-shrink: 0;
}
.panel.grow { flex: 1 1 auto; display: flex; flex-direction: column; min-height: 140px; }

.panel-title {
  font-weight: 600;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  margin-bottom: 6px;
}

.row { display: flex; gap: 6px; align-items: center; margin-top: 6px; }
.row select { flex: 1 1 auto; }

button, select, input[type="number"], input[type="date"] {
  background: #1a2333;
  color: var(--ink);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 4px 8px;
  font: inherit;
}
button { cursor: pointer; }
button:hover { border-color: var(--accent); }
input[type="number"] { width: 76px; }
input[type="date"] { flex: 1 1 auto; color-scheme: dark; }

label { display: block; margin: 3px 0; cursor: pointer; user-select: none; }
label input { margin-right: 6px; vertical-align: -1px; }

.muted { color: var(--muted); font-weight: 400; }
.busy { color: var(--accent); font-weight: 400; text-transform: none; }
.hidden { display: none; }

#summary { font-size: 12px; }
#summary b { color: #e2e8f0; }
#summary .pos { color: var(--green); }
#summary .neg { color: var(--red); }

#sama-params { display: grid; grid-template-columns: 1fr 1fr; gap: 4px 8px; }
#sama-params label { display: flex; justify-content: space-between; align-items: center; margin: 0; }
#sama-params label span { color: var(--muted); font-size: 12px; }
#sama-params input { width: 64px; }

#ema-chips { margin-top: 6px; display: flex; flex-wrap: wrap; gap: 4px; }
.ema-chip {
  display: inline-flex; align-items: center; gap: 5px;
  border: 1px solid var(--border); border-radius: 10px;
  padding: 1px 8px; font-size: 12px;
}
.ema-chip .dot { width: 8px; height: 8px; border-radius: 50%; }
.ema-chip button {
  border: none; background: none; padding: 0 2px; color: var(--muted);
  font-size: 13px; line-height: 1;
}
.ema-chip button:hover { color: var(--red); }

#trade-detail { font-size: 12px; }
#trade-detail table { border-collapse: collapse; width: 100%; }
#trade-detail td { padding: 1px 4px 1px 0; vertical-align: top; }
#trade-detail td:first-child { color: var(--muted); white-space: nowrap; }

#trade-table-wrap { overflow-y: auto; flex: 1 1 auto; }
#trade-table { border-collapse: collapse; width: 100%; font-size: 12px; }
#trade-table th {
  position: sticky; top: 0;
  background: var(--panel);
  text-align: left; color: var(--muted); font-weight: 500;
  padding: 2px 6px; border-bottom: 1px solid var(--border);
}
#trade-table td { padding: 2px 6px; border-bottom: 1px solid #16202e; white-space: nowrap; }
#trade-table th.num, #trade-table td.num { text-align: right; }
#trade-table tbody tr { cursor: pointer; }
#trade-table tbody tr:hover { background: #1a2333; }
#trade-table tbody tr.selected { background: #1e3a5f; }
.pos { color: var(--green); }
.neg { color: var(--red); }
.dir-long { color: var(--green); }
.dir-short { color: var(--red); }