:root {
  --bg: #0d1117;
  --panel: #161b22;
  --border: #30363d;
  --text: #e6edf3;
  --muted: #8b949e;
  --green: #3fb950;
  --red: #f85149;
  --accent: #58a6ff;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Noto Sans SC", sans-serif;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  padding: 12px 20px;
  border-bottom: 1px solid var(--border);
}

.brand { display: flex; align-items: baseline; gap: 10px; }
.logo { font-size: 22px; }
h1 { font-size: 20px; }
.sub { color: var(--muted); font-size: 13px; }

.controls { display: flex; align-items: center; gap: 16px; font-size: 13px; }
.toggle { color: var(--muted); cursor: pointer; user-select: none; display: flex; align-items: center; gap: 5px; }
.conn { color: var(--red); font-size: 14px; transition: color 0.3s; }
.conn.open { color: var(--green); }
.conn.connecting { color: #d29922; }

main { flex: 1; padding: 16px 20px; max-width: 1200px; width: 100%; margin: 0 auto; }

.ticker {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 10px;
  margin-bottom: 16px;
}

.ticker-card {
  position: relative;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 14px;
}
.ticker-card .coin { color: var(--muted); font-size: 12px; font-weight: 600; letter-spacing: 0.5px; }
.ticker-card .price { font-size: 20px; font-weight: 700; font-variant-numeric: tabular-nums; margin-top: 2px; transition: color 0.5s; }
.ticker-card .price.up { color: var(--green); }
.ticker-card .price.down { color: var(--red); }

.remove-btn {
  background: none;
  border: none;
  color: var(--muted);
  cursor: pointer;
  font-size: 15px;
  line-height: 1;
  padding: 2px 4px;
  border-radius: 6px;
}
.remove-btn:hover { color: var(--red); background: rgba(248, 81, 73, 0.1); }
.ticker-card .remove-btn { position: absolute; top: 6px; right: 6px; }

.watchlist-forms { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-bottom: 16px; }
@media (max-width: 800px) { .watchlist-forms { grid-template-columns: 1fr; } }
.watch-form form { display: flex; gap: 8px; flex-wrap: wrap; }
.watch-form input {
  flex: 1;
  min-width: 120px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 10px;
  color: var(--text);
  font-size: 13px;
}
.watch-form input:focus { outline: 1px solid var(--accent); }
.watch-form button {
  background: var(--accent);
  border: none;
  border-radius: 8px;
  padding: 8px 16px;
  color: #0d1117;
  font-weight: 600;
  font-size: 13px;
  cursor: pointer;
}
.watch-form button:hover { opacity: 0.9; }
.form-error { color: var(--red); font-size: 12px; margin-top: 6px; min-height: 14px; }

.grid { display: grid; grid-template-columns: 3fr 2fr; gap: 16px; }
@media (max-width: 800px) { .grid { grid-template-columns: 1fr; } }

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px 16px;
  min-height: 200px;
}
.panel h2 { font-size: 14px; color: var(--muted); margin-bottom: 10px; font-weight: 600; }
.count { font-weight: 400; font-size: 12px; }

.feed { display: flex; flex-direction: column; gap: 6px; max-height: 65vh; overflow-y: auto; }

.fill-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid transparent;
  font-size: 13px;
  flex-wrap: wrap;
}
.fill-row.fresh { animation: flash 1.6s ease-out; }
@keyframes flash { 0% { border-color: var(--accent); background: rgba(88, 166, 255, 0.12); } 100% { border-color: transparent; } }

.badge {
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 700;
  white-space: nowrap;
}
.badge.buy { background: rgba(63, 185, 80, 0.15); color: var(--green); }
.badge.sell { background: rgba(248, 81, 73, 0.15); color: var(--red); }

.fill-coin { font-weight: 700; }
.fill-detail { color: var(--muted); font-variant-numeric: tabular-nums; }
.fill-label { color: var(--accent); font-size: 12px; }
.fill-time { color: var(--muted); font-size: 11px; margin-left: auto; }
.fill-pnl.pos { color: var(--green); }
.fill-pnl.neg { color: var(--red); }

.addr-block { margin-bottom: 14px; }
.addr-head { display: flex; justify-content: space-between; align-items: center; gap: 8px; margin-bottom: 6px; }
.addr-name { font-weight: 600; font-size: 13px; color: var(--accent); flex: 1; }
.addr-value { color: var(--muted); font-size: 12px; font-variant-numeric: tabular-nums; }

table { width: 100%; border-collapse: collapse; font-size: 12.5px; font-variant-numeric: tabular-nums; }
th { text-align: left; color: var(--muted); font-weight: 500; padding: 4px 6px; border-bottom: 1px solid var(--border); }
td { padding: 5px 6px; border-bottom: 1px solid rgba(48, 54, 61, 0.5); }
td.long { color: var(--green); }
td.short { color: var(--red); }
td.pos { color: var(--green); }
td.neg { color: var(--red); }

.empty { color: var(--muted); font-size: 13px; padding: 12px 0; }

footer { text-align: center; color: var(--muted); font-size: 12px; padding: 14px; border-top: 1px solid var(--border); }