:root {
  --bg: #0e1116;
  --panel: #161b22;
  --panel2: #1b222c;
  --border: #2a323d;
  --text: #d7dde5;
  --muted: #7d8896;
  --accent: #4c8dff;
  --green: #26a69a;
  --red: #ef5350;
  --amber: #d8a24a;
}

* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; }
body {
  background: var(--bg);
  color: var(--text);
  font: 13px/1.45 -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  display: flex;
  flex-direction: column;
  height: 100vh;
}

.muted { color: var(--muted); }
.small { font-size: 11px; }

/* top bar */
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px; padding: 10px 16px;
  background: var(--panel); border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
}
.brand { font-size: 15px; }
.brand .muted { font-weight: 400; }
.top-controls { display: flex; align-items: flex-end; gap: 10px; flex-wrap: wrap; }
.top-controls label { display: flex; flex-direction: column; font-size: 11px; color: var(--muted); gap: 3px; }

input, select, button {
  background: var(--panel2); color: var(--text);
  border: 1px solid var(--border); border-radius: 6px;
  padding: 6px 8px; font-size: 13px;
}
input:focus, select:focus { outline: 1px solid var(--accent); }
button { cursor: pointer; }
button.primary { background: var(--accent); border-color: var(--accent); color: #fff; font-weight: 600; }
button.primary:hover { filter: brightness(1.08); }
button.ghost:hover { border-color: var(--accent); }
button:disabled { opacity: .5; cursor: default; }

/* layout */
.layout { display: flex; flex: 1; min-height: 0; }
.sidebar {
  width: 300px; flex-shrink: 0; overflow-y: auto;
  background: var(--panel); border-right: 1px solid var(--border);
  padding: 14px;
}
.content { flex: 1; min-width: 0; display: flex; flex-direction: column; padding: 12px 14px; gap: 12px; overflow: hidden; }

.field { margin-bottom: 14px; }
label.block { display: block; font-size: 11px; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); margin-bottom: 5px; }
.sidebar select, .sidebar input { width: 100%; }

.pgroup { margin-bottom: 12px; border: 1px solid var(--border); border-radius: 8px; overflow: hidden; }
.pgroup > h4 {
  margin: 0; padding: 7px 10px; font-size: 11px; letter-spacing: .05em; text-transform: uppercase;
  background: var(--panel2); color: var(--muted); border-bottom: 1px solid var(--border);
}
.pgroup .prow { display: flex; align-items: center; justify-content: space-between; gap: 8px; padding: 6px 10px; }
.pgroup .prow label { font-size: 12px; color: var(--text); flex: 1; cursor: help; }
.pgroup .prow input { width: 84px; text-align: right; }
.pgroup .prow input[type="checkbox"] { width: 16px; height: 16px; flex: 0 0 auto; text-align: initial; accent-color: var(--accent); cursor: pointer; }
.pgroup .prow select { width: 118px; text-align: left; padding: 5px 6px; font-size: 12px; cursor: pointer; }

/* status */
.status { padding: 4px 2px; min-height: 18px; }
.status.error { color: var(--red); }
.status.busy { color: var(--amber); }

/* stats */
.stats { display: flex; flex-wrap: wrap; gap: 8px; }
.stat {
  background: var(--panel); border: 1px solid var(--border); border-radius: 8px;
  padding: 8px 12px; min-width: 96px;
}
.stat .k { font-size: 10px; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); }
.stat .v { font-size: 17px; font-weight: 600; margin-top: 2px; }
.v.pos { color: var(--green); } .v.neg { color: var(--red); }

/* chart */
.chart-wrap { flex: 1; min-height: 220px; background: var(--panel); border: 1px solid var(--border); border-radius: 8px; overflow: hidden; }
#chart { width: 100%; height: 100%; }

/* tables */
.tables { display: flex; flex-direction: column; max-height: 34%; }
.table-head { display: flex; justify-content: space-between; align-items: baseline; padding: 2px 2px 6px; }
.table-scroll { overflow: auto; border: 1px solid var(--border); border-radius: 8px; }
table { width: 100%; border-collapse: collapse; font-size: 12px; }
th, td { padding: 5px 9px; text-align: right; white-space: nowrap; border-bottom: 1px solid var(--border); }
th:last-child, td:last-child { text-align: left; white-space: normal; }
th { position: sticky; top: 0; background: var(--panel2); color: var(--muted); font-weight: 500; z-index: 1; }
tbody tr:hover { background: var(--panel2); }
td.long { color: var(--green); } td.short { color: var(--red); }
td.win { color: var(--green); } td.loss { color: var(--red); }

/* ---------- sidebar tabs (Quick Setup / Strategy Config) ---------- */
.tabs { display: flex; gap: 4px; margin-bottom: 12px; border-bottom: 1px solid var(--border); }
.tab {
  flex: 1; padding: 7px 8px; font-size: 12px; font-weight: 600; cursor: pointer;
  background: transparent; color: var(--muted); border: 0;
  border-bottom: 2px solid transparent; margin-bottom: -1px;
}
.tab:hover { color: var(--text); }
.tab.active { color: var(--accent); border-bottom-color: var(--accent); }
.tab:focus-visible { outline: 2px solid var(--accent); outline-offset: -2px; }
.panel[hidden] { display: none; }

/* one strategy per row: [x] Name [preset select] */
.srow { display: flex; align-items: center; gap: 8px; padding: 5px 10px; }
.srow + .srow { border-top: 1px solid var(--border); }
.srow input[type="checkbox"] { width: 16px; height: 16px; flex: 0 0 auto; accent-color: var(--accent); cursor: pointer; }
.srow label { flex: 1; font-size: 12px; color: var(--text); cursor: pointer; }
.srow select { width: 132px; padding: 4px 6px; font-size: 11px; cursor: pointer; }
.srow.off label { color: var(--muted); }
.srow.off select { opacity: .45; }
/* AND-only controls dim out in OR mode */
.pgroup .prow.off label { color: var(--muted); }
.pgroup .prow.off input { opacity: .45; }