:root {
  --bg: #0b0f14;
  --panel: #121820;
  --panel-2: #161e28;
  --line: #222c38;
  --text: #e6ebf1;
  --muted: #8593a3;
  --buy: #22c55e;
  --buy-bg: rgba(34, 197, 94, 0.12);
  --sell: #ef4444;
  --sell-bg: rgba(239, 68, 68, 0.12);
  --wait: #eab308;
  --wait-bg: rgba(234, 179, 8, 0.10);
  --neutral: #94a3b8;
  --flash: rgba(96, 165, 250, 0.18);
  --mono: ui-monospace, "SF Mono", "Cascadia Mono", Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

.wrap { max-width: 1100px; margin: 0 auto; padding: 28px 16px 40px; }

/* Header ----------------------------------------------------------------- */
.top {
  display: flex; flex-wrap: wrap; gap: 14px 24px;
  align-items: center; justify-content: space-between;
  margin-bottom: 18px;
}
h1 { margin: 0; font-size: 22px; font-weight: 700; letter-spacing: 0.14em; }
.meta { display: flex; flex-wrap: wrap; gap: 10px 18px; align-items: center; }
.updated { color: var(--muted); font-size: 14px; }
.updated strong { color: var(--text); font-family: var(--mono); font-weight: 600; }

.status {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 5px 12px; border-radius: 999px;
  font-size: 12px; font-weight: 700; letter-spacing: 0.08em;
  border: 1px solid var(--line); background: var(--panel);
}
.status .dot { font-size: 11px; line-height: 1; }
.status--live    { color: var(--buy);  border-color: rgba(34,197,94,.35);  background: var(--buy-bg); }
.status--live .dot { animation: pulse 1.6s ease-in-out infinite; }
.status--stale   { color: var(--wait); border-color: rgba(234,179,8,.35);  background: var(--wait-bg); }
.status--error   { color: var(--sell); border-color: rgba(239,68,68,.35);  background: var(--sell-bg); }
.status--waiting,
.status--pending { color: var(--neutral); }

@keyframes pulse { 50% { opacity: 0.35; } }

/* Table ------------------------------------------------------------------ */
.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
}
.grid { width: 100%; border-collapse: collapse; }
.grid th, .grid td { padding: 12px 16px; text-align: left; white-space: nowrap; }
.grid th {
  background: var(--panel-2);
  color: var(--muted);
  font-size: 12px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase;
  border-bottom: 1px solid var(--line);
}
.grid td { border-bottom: 1px solid var(--line); }
.grid tbody tr:last-child td { border-bottom: 0; }
.grid tbody tr:hover td { background: rgba(255,255,255,0.02); }
.grid .num { text-align: right; font-family: var(--mono); font-variant-numeric: tabular-nums; }
.grid .sym { font-weight: 700; letter-spacing: 0.03em; }
.grid .time { color: var(--muted); font-family: var(--mono); }
.grid td.flash { animation: flash 1.2s ease-out; }
@keyframes flash { from { background: var(--flash); } to { background: transparent; } }

/* Signal badges */
.sig {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 3px 10px 3px 8px; border-radius: 6px;
  font-size: 13px; font-weight: 700; letter-spacing: 0.04em;
  background: rgba(148,163,184,.10); color: var(--neutral);
}
.sig::before {
  content: ""; width: 8px; height: 8px; border-radius: 50%; background: currentColor;
}
.sig--buy  { color: var(--buy);  background: var(--buy-bg); }
.sig--sell { color: var(--sell); background: var(--sell-bg); }
.sig--wait { color: var(--wait); background: var(--wait-bg); }

.empty { margin: 0; padding: 36px 16px; text-align: center; color: var(--muted); }

.foot {
  display: flex; flex-wrap: wrap; gap: 6px 16px; justify-content: space-between;
  margin-top: 12px; color: var(--muted); font-size: 12px;
}

/* Phones: each row becomes a compact card -------------------------------- */
@media (max-width: 640px) {
  h1 { font-size: 18px; }
  .grid thead { display: none; }
  .grid, .grid tbody, .grid tr, .grid td { display: block; width: 100%; }
  .grid tr { padding: 10px 14px; border-bottom: 1px solid var(--line); }
  .grid tbody tr:last-child { border-bottom: 0; }
  .grid td {
    display: flex; justify-content: space-between; align-items: center;
    padding: 5px 0; border: 0; text-align: right;
  }
  .grid td::before {
    content: attr(data-label);
    color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: 0.06em;
    font-family: system-ui, sans-serif; font-weight: 500;
  }
  .grid .num { text-align: right; }
}