:root {
  --bg: #0f1115;
  --panel: #171a21;
  --fg: #d8dee9;
  --muted: #7a828e;
  --line: #262b34;
  --ok: #4caf50;
  --stale: #e0a800;
  --bad: #e35d5d;
  --accent: #4f9cf9;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font: 14px/1.5 -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--fg);
}
header {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 0.75rem 1.25rem;
  background: var(--panel);
  border-bottom: 1px solid var(--line);
}
header h1 { font-size: 1.1rem; margin: 0; color: var(--accent); }
nav { display: flex; gap: 1rem; }
nav a { color: var(--fg); text-decoration: none; }
nav a:hover { color: var(--accent); }
main { padding: 1.25rem; }
h2, h3 { font-weight: 600; }
.muted { color: var(--muted); font-size: 0.85rem; }
table { width: 100%; border-collapse: collapse; margin: 0.5rem 0 1.5rem; }
th, td {
  text-align: left;
  padding: 0.4rem 0.6rem;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}
th { color: var(--muted); font-weight: 600; font-size: 0.8rem; text-transform: uppercase; }
tbody tr:hover { background: rgba(255,255,255,0.02); }
button {
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 4px;
  padding: 0.3rem 0.7rem;
  cursor: pointer;
  font-size: 0.8rem;
}
button.secondary { background: var(--line); color: var(--fg); }
button:hover { opacity: 0.9; }
input[type=text] {
  background: var(--bg);
  border: 1px solid var(--line);
  color: var(--fg);
  border-radius: 4px;
  padding: 0.3rem 0.5rem;
  margin-right: 0.4rem;
}
form { margin: 0.5rem 0 1rem; }
.badge {
  display: inline-block;
  padding: 0.05rem 0.5rem;
  border-radius: 10px;
  font-size: 0.75rem;
  font-weight: 600;
}
.badge.recording { background: rgba(76,175,80,0.18); color: var(--ok); }
.badge.stale { background: rgba(224,168,0,0.18); color: var(--stale); }
.badge.stopped, .badge.paused, .badge.closed { background: rgba(227,93,93,0.16); color: var(--bad); }
.badge.pending, .badge.connecting, .badge.reconnecting { background: rgba(79,156,249,0.16); color: var(--accent); }
.badge.connected { background: rgba(76,175,80,0.18); color: var(--ok); }
.actions button { margin-right: 0.25rem; }
.disc-list { margin: 0; padding-left: 1rem; font-size: 0.8rem; }
.market-secondary {
  border-top: 1px solid var(--line);
  margin-top: 1.25rem;
  padding-top: 0.75rem;
}
.market-secondary summary {
  cursor: pointer;
  font-weight: 600;
  margin-bottom: 0.5rem;
}
.compact-table td,
.compact-table th {
  padding-top: 0.3rem;
  padding-bottom: 0.3rem;
}

/* Data browser + chart */
.inline-form { display: flex; gap: 0.75rem; align-items: flex-end; flex-wrap: wrap; margin: 0.5rem 0 1rem; }
.inline-form label { font-size: 0.85rem; display: flex; align-items: center; gap: 0.25rem; }
input[type=number], select {
  background: var(--bg); border: 1px solid var(--line); color: var(--fg);
  border-radius: 4px; padding: 0.3rem 0.5rem;
}
input[type=number] { width: 5.5rem; }
hr { border: none; border-top: 1px solid var(--line); margin: 1.75rem 0; }
#chart-container {
  background: var(--panel); border: 1px solid var(--line); border-radius: 6px;
  padding: 1rem; height: 340px; position: relative;
}
#market-chart { width: 100%; height: 100%; display: block; }
#chart-status {
  position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);
  pointer-events: none;
}
#data-result table { width: 100%; }
#data-result td { vertical-align: top; max-width: 40vw; }
#data-result pre {
  margin: 0.25rem 0 0; padding: 0.25rem 0.5rem; font-size: 0.75rem;
  background: var(--panel); border-radius: 3px;
  max-height: 280px; overflow-y: auto; white-space: pre-wrap; word-break: break-all;
}
#data-result details summary { cursor: pointer; font-size: 0.8rem; color: var(--muted); }