:root {
  --bg: #f6f7f9;
  --panel: #ffffff;
  --border: #e3e6ea;
  --text: #1c2126;
  --muted: #6b7280;
  --brand: #1f5fd1;
  --brand-soft: #e8f0fe;
  --up: #d13b3b;
  --down: #17864a;
  --danger: #c0392b;
  --radius: 10px;
  --shadow: 0 1px 2px rgba(16, 24, 40, .06), 0 4px 12px rgba(16, 24, 40, .04);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

a { color: var(--brand); text-decoration: none; }
h1, h2, h3 { margin: 0; font-weight: 600; }

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 22px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}

.brand { display: flex; align-items: center; gap: 10px; font-weight: 650; font-size: 16px; }
.brand .dot { width: 10px; height: 10px; border-radius: 3px; background: var(--brand); }
.brand small { font-weight: 400; color: var(--muted); font-size: 12px; }

.topbar .who { display: flex; align-items: center; gap: 10px; color: var(--muted); font-size: 13px; }

.wrap { max-width: 1080px; margin: 0 auto; padding: 22px; }
.wrap.narrow { max-width: 460px; }

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px;
}

.card + .card { margin-top: 16px; }
.card h2 { font-size: 15px; margin-bottom: 14px; }
.card .sub { color: var(--muted); font-size: 13px; margin: -8px 0 14px; }

label { display: block; font-size: 13px; color: var(--muted); margin-bottom: 6px; }

input[type=email], input[type=password], input[type=text], input[type=number], select {
  width: 100%;
  padding: 9px 11px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font: inherit;
  background: #fff;
  color: inherit;
}

input:focus, select:focus { outline: 2px solid var(--brand-soft); border-color: var(--brand); }

.field { margin-bottom: 14px; }
.row { display: flex; gap: 12px; }
.row > * { flex: 1; }

button {
  font: inherit;
  padding: 9px 16px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: #fff;
  color: var(--text);
  cursor: pointer;
}

button:hover { border-color: #c9ced6; }
button:disabled { opacity: .55; cursor: not-allowed; }

button.primary {
  background: var(--brand);
  border-color: var(--brand);
  color: #fff;
}

button.primary:hover { background: #1a52b8; }
button.ghost { background: transparent; border-color: transparent; color: var(--muted); }
button.ghost:hover { color: var(--text); }
button.small { padding: 5px 10px; font-size: 13px; }

.tabs { display: flex; gap: 6px; margin-bottom: 18px; background: #eef1f5; padding: 4px; border-radius: 9px; }
.tabs button { flex: 1; border: 0; background: transparent; color: var(--muted); padding: 8px; border-radius: 7px; }
.tabs button.active { background: #fff; color: var(--text); box-shadow: var(--shadow); }

.kpis { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-bottom: 16px; }
.kpi { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 14px 16px; }
.kpi .label { font-size: 12px; color: var(--muted); margin-bottom: 6px; }
.kpi .value { font-size: 20px; font-weight: 650; font-variant-numeric: tabular-nums; }
.kpi .value.up { color: var(--up); }
.kpi .value.down { color: var(--down); }

table { width: 100%; border-collapse: collapse; font-variant-numeric: tabular-nums; }
th, td { text-align: left; padding: 9px 8px; border-bottom: 1px solid var(--border); font-size: 13.5px; }
th { color: var(--muted); font-weight: 500; font-size: 12.5px; white-space: nowrap; }
tbody tr:last-child td { border-bottom: 0; }
td.num, th.num { text-align: right; }
.tag { display: inline-block; padding: 1px 7px; border-radius: 999px; font-size: 11.5px; background: #eef1f5; color: var(--muted); }
.tag.buy { background: #fdecec; color: var(--up); }
.tag.sell { background: #e9f7ef; color: var(--down); }

.hint { color: var(--muted); font-size: 12.5px; }
.msg { margin-top: 12px; font-size: 13px; padding: 9px 12px; border-radius: 8px; display: none; }
.msg.show { display: block; }
.msg.error { background: #fdecea; color: var(--danger); }
.msg.ok { background: #e9f7ef; color: var(--down); }
.msg.info { background: var(--brand-soft); color: var(--brand); }

.toolbar { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin-bottom: 14px; }
.toolbar .grow { flex: 1; }

.hidden { display: none !important; }

footer { text-align: center; color: var(--muted); font-size: 12.5px; padding: 26px 20px 40px; }

.empty { color: var(--muted); font-size: 13.5px; padding: 18px 0; text-align: center; }

@media (max-width: 720px) {
  .kpis { grid-template-columns: repeat(2, 1fr); }
  .wrap { padding: 14px; }
  .topbar { padding: 12px 14px; }
  .row { flex-direction: column; }
  table { font-size: 13px; }
  th, td { padding: 8px 6px; }
}