:root {
  color-scheme: dark;
  --bg: #0d1117;
  --panel: #161b22;
  --border: #30363d;
  --text: #e6edf3;
  --muted: #7d8590;
  --buy: #3fb950;
  --sell: #f85149;
  --ok: #2ea043;
  --bad: #8b2c2c;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font: 14px/1.5 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  padding-bottom: env(safe-area-inset-bottom);
}

/* ---------- 顶栏 ---------- */
.top {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 16px;
  background: rgba(13, 17, 23, .92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.title { display: flex; align-items: baseline; gap: 10px; min-width: 0; }

h1 { font-size: 16px; margin: 0; font-weight: 600; letter-spacing: .01em; }

.status {
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 99px;
  border: 1px solid var(--border);
  color: var(--muted);
  white-space: nowrap;
}
.status.on  { background: #12291a; border-color: var(--ok);  color: var(--buy); }
.status.off { background: #2d1516; border-color: var(--bad); color: var(--sell); }

.actions { display: flex; gap: 6px; }

.icon-btn {
  width: 34px; height: 34px;
  display: grid; place-items: center;
  background: var(--panel);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  cursor: pointer;
  font-size: 15px;
  line-height: 1;
  transition: background .12s;
}
.icon-btn:hover { background: #21262d; }
.icon-btn:active { transform: scale(.96); }

/* ---------- 筛选 ---------- */
.filters {
  display: flex;
  gap: 8px;
  padding: 10px 16px;
  border-bottom: 1px solid var(--border);
  overflow-x: auto;
}
.filters select {
  background: var(--panel);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 6px 10px;
  font-size: 13px;
  min-width: 0;
}

/* ---------- 列表 ---------- */
main { padding: 0 0 40px; }

table { width: 100%; border-collapse: collapse; }

thead th {
  position: sticky;
  top: 61px;
  background: var(--bg);
  text-align: left;
  font-size: 11px;
  font-weight: 500;
  color: var(--muted);
  padding: 8px 16px;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

tbody td {
  padding: 10px 16px;
  border-bottom: 1px solid #1c2128;
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}

tbody tr.fresh { animation: flash 1.6s ease-out; }
@keyframes flash {
  from { background: rgba(46, 160, 67, .22); }
  to   { background: transparent; }
}

.side { font-weight: 700; font-size: 12px; letter-spacing: .02em; }
.side.buy  { color: var(--buy); }
.side.sell { color: var(--sell); }

.sym { font-weight: 600; }
.tf  { color: var(--muted); font-size: 12px; }
.num { text-align: right; }
.time { color: var(--muted); font-size: 12px; }

.empty {
  text-align: center;
  color: var(--muted);
  padding: 48px 16px;
  font-size: 13px;
}
.empty.hidden { display: none; }

footer {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  padding: 8px 16px calc(8px + env(safe-area-inset-bottom));
  background: rgba(13,17,23,.92);
  backdrop-filter: blur(12px);
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 11px;
}

/* ---------- 窄屏 ---------- */
@media (max-width: 640px) {
  thead th.time, tbody td.time:last-child { display: none; }
  thead th, tbody td { padding-left: 12px; padding-right: 12px; }
}