:root {
  --bg: #0b0e11;
  --bar: #0d0f13;
  --line: #242830;
  --text: #d1d4dc;
  --muted: #9a9384;
  --gold: #d4af67;
  --down: #ff6b7a;
  --up: #3dd68c;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: "IBM Plex Sans", "Segoe UI", sans-serif;
}

body {
  display: flex;
  flex-direction: column;
  min-height: 0;
}

.bar {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  min-height: 42px;
  padding: 8px 14px;
  background: var(--bar);
  border-bottom: 1px solid var(--line);
}

.brand, .nav {
  color: var(--gold);
  text-decoration: none;
  font-size: 13px;
}

.pair, #status, #readout {
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 12px;
  color: var(--muted);
}

#readout { color: var(--text); }

.navs {
  margin-left: auto;
  display: flex;
  gap: 12px;
}

.group { display: flex; gap: 4px; }

.group button {
  border: 1px solid var(--line);
  background: #131722;
  color: #c8c2b4;
  border-radius: 4px;
  padding: 4px 8px;
  font: 12px/1 "IBM Plex Sans", "Segoe UI", sans-serif;
  cursor: pointer;
}

.group button.on {
  color: #131722;
  background: var(--gold);
  border-color: var(--gold);
}

.note {
  margin: 0;
  padding: 8px 14px 10px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.45;
  border-bottom: 1px solid var(--line);
}

.stage {
  flex: 1;
  min-height: 0;
  position: relative;
}

canvas {
  width: 100%;
  height: 100%;
  display: block;
  cursor: crosshair;
}

.clusters {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  min-height: 36px;
  padding: 8px 14px;
  border-top: 1px solid var(--line);
  background: var(--bar);
}

.chip {
  display: flex;
  gap: 8px;
  align-items: baseline;
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 4px 8px;
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 12px;
}

.chip.long { color: var(--down); }
.chip.short { color: var(--up); }
.chip b { color: #f3efe4; font-weight: 600; }