:root {
  color-scheme: dark;
  --bg: #080a09;
  --panel: #0d100e;
  --line: #20251f;
  --muted: #747d73;
  --text: #dce3da;
  --green: #86ff6a;
  --red: #ff776f;
  --amber: #ffd166;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

* { box-sizing: border-box; }

html, body { height: 100%; }

body {
  margin: 0;
  overflow: hidden;
  background: var(--bg);
  color: var(--text);
  font-size: 12px;
}

header, footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 42px;
  padding: 0 16px;
  background: var(--panel);
  border-color: var(--line);
  border-style: solid;
  border-width: 0 0 1px;
  white-space: nowrap;
}

.brand { color: var(--green); font-weight: 700; letter-spacing: .08em; }

.pulse {
  display: inline-block;
  width: 7px;
  height: 7px;
  margin-right: 9px;
  border-radius: 50%;
  background: var(--muted);
}

body.live .pulse {
  background: var(--green);
  box-shadow: 0 0 10px color-mix(in srgb, var(--green), transparent 35%);
}

.meta { display: flex; align-items: center; gap: 18px; color: var(--muted); }
.status.live { color: var(--green); }
.status.error { color: var(--red); }
.status.paused { color: var(--amber); }

main {
  height: calc(100% - 72px);
  display: flex;
  flex-direction: column;
  overflow-x: auto;
}

#tape {
  flex: 1;
  overflow-y: auto;
  min-width: 900px;
  scrollbar-color: var(--line) transparent;
}

.tape-row {
  display: grid;
  min-width: 900px;
  border-bottom: 1px solid #111511;
  font-variant-numeric: tabular-nums;
}

.tape-row span { padding: 5px 10px; text-align: right; }
.tape-row span[data-column="time"] { text-align: left; }
.tape-row span.reference { color: var(--amber); }
.tape-row span.up { color: var(--green); }
.tape-row span.down { color: var(--red); }
.tape-row span.technical { color: var(--muted); }
.tape-row span.delta.positive { color: var(--green); }
.tape-row span.delta.negative, .tape-row span.stale { color: var(--red); }
.tape-row [hidden] { display: none; }
.tape-row:nth-child(even) { background: #0a0c0a; }

.labels {
  flex: 0 0 auto;
  color: var(--muted);
  background: #101310;
  border-bottom-color: var(--line);
  font-size: 10px;
  letter-spacing: .04em;
}

.market-break {
  padding: 8px 10px;
  color: var(--amber);
  border-bottom: 1px solid var(--line);
  background: #11120c;
  min-width: 900px;
}

#column-menu { position: relative; color: var(--text); }
#column-menu summary {
  cursor: pointer;
  list-style: none;
  color: var(--amber);
  font-size: 10px;
  letter-spacing: .05em;
}
#column-menu summary::-webkit-details-marker { display: none; }
#column-picker {
  position: absolute;
  z-index: 20;
  top: 26px;
  right: 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(118px, 1fr));
  gap: 4px 10px;
  width: 430px;
  padding: 12px;
  border: 1px solid var(--line);
  background: #0d100ef7;
  box-shadow: 0 12px 40px #000a;
}
.column-option { display: flex; align-items: center; gap: 7px; color: var(--muted); font-size: 10px; }
.column-option input { accent-color: var(--green); }
.column-reset {
  grid-column: 1 / -1;
  margin-top: 7px;
  padding: 7px;
  border: 1px solid var(--line);
  background: #141814;
  color: var(--amber);
  font: inherit;
  cursor: pointer;
}

footer {
  min-height: 30px;
  border-width: 1px 0 0;
  color: var(--muted);
  font-size: 10px;
}

@media (max-width: 700px) {
  header { align-items: flex-start; flex-direction: column; padding-block: 9px; }
  .meta { width: 100%; justify-content: space-between; }
  main { height: calc(100% - 101px); }
  #market { display: none; }
  #latency { display: none; }
  #column-picker { position: fixed; top: 84px; left: 8px; right: 8px; width: auto; grid-template-columns: repeat(2, 1fr); }
  footer span:last-child { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto !important; }
}