:root {
  --bg: #f9f9f7;
  --surface: #fcfcfb;
  --border: #e1e0d9;
  --text-primary: #0b0b0b;
  --text-secondary: #52514e;
  --text-muted: #898781;
  --accent: #2a78d6;
  --accent-hover: #1c5cab;
  --positive: #006300;
  --negative: #d03b3b;

  --chart-grid: #e1e0d9;
  --chart-series-1: #2a78d6;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0d0d0d;
    --surface: #1a1a19;
    --border: #2c2c2a;
    --text-primary: #ffffff;
    --text-secondary: #c3c2b7;
    --text-muted: #898781;
    --accent: #3987e5;
    --accent-hover: #5598e7;
    --positive: #0ca30c;
    --negative: #e66767;

    --chart-grid: #2c2c2a;
    --chart-series-1: #3987e5;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text-primary);
}

.hidden { display: none !important; }

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
}

.topbar h1 { font-size: 20px; margin: 0; }

.badge {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-muted);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 2px 6px;
  vertical-align: middle;
}

.layout {
  max-width: 880px;
  margin: 0 auto;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 20px;
}

.panel h2 {
  margin-top: 0;
  font-size: 16px;
}

.privacy-panel ul {
  margin: 0;
  padding-left: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  color: var(--text-secondary);
  font-size: 14px;
}

.privacy-panel code {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 1px 5px;
  font-size: 13px;
}

.btn {
  font: inherit;
  font-weight: 600;
  border-radius: 6px;
  padding: 9px 16px;
  border: 1px solid transparent;
  cursor: pointer;
}

.btn-primary {
  background: var(--accent);
  color: white;
}
.btn-primary:hover { background: var(--accent-hover); }

.btn-secondary {
  background: transparent;
  color: var(--accent);
  border-color: var(--accent);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border-color: var(--border);
}

.actions-row { display: flex; gap: 12px; }

.tx-form {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 12px;
  align-items: end;
}

.tx-form label {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 13px;
  color: var(--text-secondary);
}

input, select {
  font: inherit;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--surface);
  color: var(--text-primary);
}

.hint {
  color: var(--text-muted);
  font-size: 12px;
  margin: 10px 0 0;
}

.stat-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 16px;
}

.stat-tile {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 12px 14px;
}

.stat-label {
  font-size: 12px;
  color: var(--text-muted);
}

.stat-value {
  font-size: 22px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.stat-value.positive { color: var(--positive); }
.stat-value.negative { color: var(--negative); }

.chart-wrap { max-width: 100%; }

.table-header-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.filters-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.filters-row label {
  display: flex;
  flex-direction: column;
  gap: 2px;
  font-size: 12px;
  color: var(--text-secondary);
}

.table-wrap { overflow-x: auto; }

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

th, td {
  text-align: left;
  padding: 8px 10px;
  border-bottom: 1px solid var(--border);
}

th {
  color: var(--text-muted);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

td.positive { color: var(--positive); font-variant-numeric: tabular-nums; }
td.negative { color: var(--negative); font-variant-numeric: tabular-nums; }

td.actions { display: flex; gap: 8px; }

td.actions button {
  font-size: 12px;
  padding: 5px 10px;
  border-radius: 4px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-secondary);
  cursor: pointer;
}

td.actions button:hover { border-color: var(--accent); color: var(--accent); }