:root {
  --bg: #0a0c10;
  --bg-1: #0f1219;
  --bg-2: #151922;
  --bg-3: #1c2230;
  --border: #232a38;
  --border-2: #2e3748;
  --text: #d7dce5;
  --text-dim: #8b93a3;
  --text-faint: #5b6373;
  --green: #2fbf71;
  --green-dim: #1c3a2c;
  --red: #e5484d;
  --red-dim: #3a1f22;
  --amber: #e0a420;
  --amber-dim: #3a2f15;
  --blue: #4c8bf5;
  --accent: #6e8efb;
  --mono: "SF Mono", "JetBrains Mono", "Menlo", "Consolas", monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 13px;
  line-height: 1.4;
  -webkit-font-smoothing: antialiased;
}

.num { font-family: var(--mono); font-variant-numeric: tabular-nums; }
.pos { color: var(--green); }
.neg { color: var(--red); }
.warn { color: var(--amber); }
.dim { color: var(--text-dim); }
.faint { color: var(--text-faint); }

/* ---------- header ---------- */
header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 18px; border-bottom: 1px solid var(--border);
  background: var(--bg-1); position: sticky; top: 0; z-index: 10;
}
.brand { display: flex; align-items: baseline; gap: 10px; }
.brand h1 { font-size: 14px; font-weight: 600; letter-spacing: -0.2px; }
.brand .tag {
  font-size: 10px; text-transform: uppercase; letter-spacing: 1px;
  color: var(--text-faint); border: 1px solid var(--border-2);
  padding: 1px 6px; border-radius: 3px;
}
.status-bar { display: flex; gap: 8px; align-items: center; }
.pill {
  font-family: var(--mono); font-size: 11px; padding: 3px 8px;
  border-radius: 4px; border: 1px solid var(--border-2);
  background: var(--bg-2); display: flex; gap: 6px; align-items: center;
}
.dot { width: 7px; height: 7px; border-radius: 50%; background: var(--text-faint); }
.dot.ok { background: var(--green); box-shadow: 0 0 6px var(--green); }
.dot.bad { background: var(--red); box-shadow: 0 0 6px var(--red); }
.dot.stale { background: var(--amber); box-shadow: 0 0 6px var(--amber); }

/* ---------- tabs ---------- */
nav.tabs {
  display: flex; gap: 2px; padding: 0 12px; background: var(--bg-1);
  border-bottom: 1px solid var(--border);
}
nav.tabs button {
  background: none; border: none; color: var(--text-dim); cursor: pointer;
  padding: 9px 14px; font-size: 12px; font-family: var(--sans);
  border-bottom: 2px solid transparent;
}
nav.tabs button:hover { color: var(--text); }
nav.tabs button.active { color: var(--text); border-bottom-color: var(--accent); }

main { padding: 14px 18px 60px; }
.view { display: none; }
.view.active { display: block; }

/* ---------- toolbar ---------- */
.toolbar {
  display: flex; gap: 10px; align-items: center; flex-wrap: wrap;
  margin-bottom: 12px;
}
.toolbar .spacer { flex: 1; }
button.btn, select, input[type=text], input[type=number], input[type=search] {
  background: var(--bg-2); border: 1px solid var(--border-2); color: var(--text);
  border-radius: 5px; padding: 6px 10px; font-size: 12px; font-family: var(--sans);
}
button.btn { cursor: pointer; }
button.btn:hover { background: var(--bg-3); }
button.btn.primary { background: var(--accent); border-color: var(--accent); color: #0a0c10; font-weight: 600; }
.chip {
  font-family: var(--mono); font-size: 11px; color: var(--text-dim);
  border: 1px solid var(--border); border-radius: 4px; padding: 4px 8px;
  background: var(--bg-1);
}

/* ---------- tables ---------- */
table { width: 100%; border-collapse: collapse; }
thead th {
  text-align: right; font-size: 10px; text-transform: uppercase;
  letter-spacing: 0.6px; color: var(--text-faint); font-weight: 500;
  padding: 7px 10px; border-bottom: 1px solid var(--border-2);
  cursor: pointer; white-space: nowrap; user-select: none;
}
thead th:first-child, tbody td:first-child { text-align: left; }
thead th.sort-active { color: var(--text); }
tbody td {
  padding: 7px 10px; border-bottom: 1px solid var(--border);
  text-align: right; white-space: nowrap;
}
tbody tr:hover { background: var(--bg-1); }
tbody tr.expandable { cursor: pointer; }
.title-cell { max-width: 360px; overflow: hidden; text-overflow: ellipsis; }
.title-cell .sub { font-size: 11px; color: var(--text-faint); }
.badge {
  font-family: var(--mono); font-size: 10px; padding: 1px 6px; border-radius: 3px;
}
.badge.go { background: var(--green-dim); color: var(--green); }
.badge.hold { background: var(--bg-3); color: var(--text-dim); }
.conf-bar { display: inline-block; width: 46px; height: 6px; background: var(--bg-3); border-radius: 3px; overflow: hidden; vertical-align: middle; }
.conf-bar > i { display: block; height: 100%; background: var(--accent); }

/* expandable detail */
tr.detail-row > td { background: var(--bg-1); padding: 0; }
.detail { padding: 14px; display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.detail h4 { font-size: 11px; text-transform: uppercase; letter-spacing: 0.6px; color: var(--text-dim); margin-bottom: 8px; }
.detail .full { grid-column: 1 / -1; }
.waterfall-row { display: flex; justify-content: space-between; font-family: var(--mono); font-size: 12px; padding: 3px 0; border-bottom: 1px dashed var(--border); }
.depth-bars { display: flex; flex-direction: column; gap: 2px; }
.depth-bar { display: flex; align-items: center; gap: 6px; font-family: var(--mono); font-size: 11px; }
.depth-bar .bar { height: 11px; background: var(--blue); opacity: 0.5; border-radius: 2px; }
.depth-bar.ask .bar { background: var(--red); }
.depth-bar.bid .bar { background: var(--green); }

/* panels / cards grid */
.grid { display: grid; gap: 14px; }
.grid.cols-2 { grid-template-columns: 1fr 1fr; }
.grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
.panel { background: var(--bg-1); border: 1px solid var(--border); border-radius: 8px; padding: 14px; }
.panel h3 { font-size: 12px; font-weight: 600; margin-bottom: 10px; display: flex; justify-content: space-between; align-items: center; }
.panel h3 .meta { font-size: 11px; color: var(--text-faint); font-weight: 400; }

.metric-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.metric { background: var(--bg-2); border: 1px solid var(--border); border-radius: 6px; padding: 10px; }
.metric .label { font-size: 10px; text-transform: uppercase; letter-spacing: 0.6px; color: var(--text-faint); }
.metric .value { font-family: var(--mono); font-size: 18px; margin-top: 4px; }

/* search typeahead */
.search-wrap { position: relative; max-width: 520px; }
.search-results {
  position: absolute; top: 100%; left: 0; right: 0; z-index: 20;
  background: var(--bg-2); border: 1px solid var(--border-2); border-radius: 6px;
  margin-top: 4px; max-height: 320px; overflow-y: auto;
}
.search-results .item { padding: 8px 10px; cursor: pointer; border-bottom: 1px solid var(--border); display: flex; justify-content: space-between; gap: 10px; }
.search-results .item:hover { background: var(--bg-3); }
.search-results .item .venue-tag { font-family: var(--mono); font-size: 10px; color: var(--text-faint); }

.venue-tag.poly { color: var(--blue); }
.venue-tag.kalshi { color: var(--amber); }

/* settings form */
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(220px, 1fr)); gap: 12px; max-width: 720px; }
.field { display: flex; flex-direction: column; gap: 4px; }
.field label { font-size: 11px; color: var(--text-dim); }
.field .hint { font-size: 10px; color: var(--text-faint); }

/* heatmap */
.heatmap-cell { font-family: var(--mono); text-align: center; border-radius: 4px; padding: 8px; }

footer {
  position: fixed; bottom: 0; left: 0; right: 0; padding: 7px 18px;
  background: var(--bg-1); border-top: 1px solid var(--border);
  font-size: 11px; color: var(--text-faint); display: flex;
  justify-content: space-between; z-index: 10;
}
.empty { color: var(--text-faint); padding: 30px; text-align: center; font-style: italic; }
.loading { color: var(--text-dim); padding: 20px; text-align: center; }
svg.spark text, svg.chart text { fill: var(--text-faint); font-family: var(--mono); font-size: 9px; }