:root {
  --bg: #0a0e16;
  --panel: #121826;
  --panel2: #0f1420;
  --line: #1f2937;
  --text: #e6edf3;
  --muted: #8b98a9;
  --up: #3fd07f;
  --down: #ff6b6b;
  --accent: #6ea8fe;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: radial-gradient(1200px 600px at 50% -200px, #15233f 0%, var(--bg) 60%);
  color: var(--text);
  font: 15px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}
.hero {
  text-align: center;
  padding: 56px 20px 28px;
  max-width: 880px;
  margin: 0 auto;
}
.brand {
  letter-spacing: 0.5em;
  font-weight: 700;
  color: var(--accent);
  font-size: 13px;
  margin-bottom: 18px;
}
.hero h1 {
  font-size: 34px;
  line-height: 1.2;
  margin: 0 0 14px;
  font-weight: 700;
}
.hero .sub {
  color: var(--muted);
  font-size: 16px;
  max-width: 680px;
  margin: 0 auto;
}
.mode {
  display: inline-block;
  margin-top: 18px;
  padding: 5px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  font-size: 12px;
}
main { max-width: 1080px; margin: 0 auto; padding: 0 20px 60px; }
.cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin: 24px 0;
}
.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 18px;
}
.card .label { color: var(--muted); font-size: 13px; }
.card .big { font-size: 28px; font-weight: 700; margin: 8px 0 2px; font-variant-numeric: tabular-nums; }
.card .unit { color: var(--muted); font-size: 12px; }
.up { color: var(--up); }
.down { color: var(--down); }
.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 20px;
  margin: 16px 0;
}
.panel h2 { font-size: 15px; margin: 0 0 14px; color: var(--text); font-weight: 600; }
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.feed, .ledger { display: flex; flex-direction: column; gap: 10px; max-height: 420px; overflow-y: auto; }
.sig {
  background: var(--panel2);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 12px 14px;
}
.sig-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 6px; }
.sig-asset { font-weight: 700; }
.badge { font-size: 11px; padding: 2px 8px; border-radius: 999px; border: 1px solid var(--line); }
.badge.up { color: var(--up); border-color: #1c3b2a; }
.badge.down { color: var(--down); border-color: #3b1c1c; }
.badge.flat { color: var(--muted); }
.sig-reason { color: var(--muted); font-size: 13px; }
.sig-meta { color: var(--muted); font-size: 12px; margin-top: 6px; font-variant-numeric: tabular-nums; }
.row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 9px 12px;
  background: var(--panel2);
  border: 1px solid var(--line);
  border-radius: 9px;
  font-size: 13px;
}
.row .amt { font-weight: 700; font-variant-numeric: tabular-nums; }
.row .mono { color: var(--muted); font-size: 11px; font-family: ui-monospace, monospace; }
.row .txlink { color: var(--accent); text-decoration: none; }
.row .txlink:hover { text-decoration: underline; }
footer {
  text-align: center;
  color: var(--muted);
  font-size: 12px;
  padding: 30px 20px 50px;
  max-width: 760px;
  margin: 0 auto;
}
@media (max-width: 820px) {
  .cards { grid-template-columns: repeat(2, 1fr); }
  .two-col { grid-template-columns: 1fr; }
  .hero h1 { font-size: 26px; }
}