:root {
  --bg: #0b0e11;
  --bar: #0d0f13;
  --line: #242830;
  --text: #d1d4dc;
  --muted: #9a9384;
  --gold: #d4af67;
  --down: #f23645;
  --up: #089981;
}

* { box-sizing: border-box; }

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

.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;
}

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

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

#side {
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 18px;
  letter-spacing: 0.04em;
}

#side.BUY, .bid { color: var(--up); }
#side.SELL, .ask { color: var(--down); }
#side.WAIT { color: var(--gold); }

.controls {
  display: flex;
  flex-wrap: wrap;
  align-items: end;
  gap: 14px;
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
}

.controls label, fieldset {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 12px;
  color: var(--muted);
}

fieldset {
  border: 1px solid var(--line);
  margin: 0;
  padding: 8px 10px;
  flex-direction: row;
  align-items: center;
  gap: 12px;
}

fieldset label { flex-direction: row; align-items: center; color: var(--text); }

input[type="number"] {
  width: 88px;
  background: #12161c;
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 6px 8px;
  font-family: "IBM Plex Mono", ui-monospace, monospace;
}

.presets { display: flex; gap: 6px; }

button {
  background: #12161c;
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 6px 8px;
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  cursor: pointer;
}

button.on { border-color: var(--gold); color: var(--gold); }

.read {
  margin: 0;
  padding: 14px;
  line-height: 1.5;
  border-bottom: 1px solid var(--line);
}

.stats {
  display: grid;
  grid-template-columns: 160px 160px 1fr;
  gap: 12px;
  padding: 14px;
  border-bottom: 1px solid var(--line);
}

.stats span {
  display: block;
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 22px;
}

.split { min-width: 0; }
.split span { display: inline; font-size: 13px; margin-right: 12px; }

.meter {
  display: flex;
  height: 8px;
  margin-top: 8px;
  background: #12161c;
  border-radius: 4px;
  overflow: hidden;
}

.meter i { display: block; height: 100%; }
.meter .bid { background: var(--up); }
.meter .ask { background: var(--down); }

.buckets {
  display: flex;
  align-items: end;
  gap: 3px;
  height: 84px;
  padding: 8px 14px 14px;
  overflow-x: auto;
  border-bottom: 1px solid var(--line);
}

.bucket {
  flex: 1 0 8px;
  min-width: 8px;
  height: 64px;
  display: flex;
  align-items: end;
  background: #12161c;
}

.bucket b { display: block; width: 100%; background: var(--gold); }

h2 {
  margin: 0;
  padding: 14px 14px 0;
  font-size: 13px;
  font-weight: 500;
  color: var(--muted);
}

.events { padding: 8px 14px 18px; }

table { width: 100%; border-collapse: collapse; font-size: 13px; }

th, td {
  text-align: left;
  padding: 8px 6px;
  border-bottom: 1px solid var(--line);
  font-family: "IBM Plex Mono", ui-monospace, monospace;
}

th { color: var(--muted); font-weight: 500; }
td.bid { color: var(--up); }
td.ask { color: var(--down); }
.empty { color: var(--muted); font-size: 13px; }

@media (max-width: 720px) {
  .stats { grid-template-columns: 1fr; }
}