:root {
  color-scheme: light;
  --font-sans: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --radius: 12px;
  --bg: #f3f5f9;
  --panel: #ffffff;
  --panel-2: #f8fafc;
  --text: #0f172a;
  --muted: #64748b;
  --border: #e2e8f0;
  --accent: #2563eb;
  --accent-soft: rgba(37, 99, 235, 0.1);
  --up: #15803d;
  --down: #dc2626;
  --up-soft: rgba(21, 128, 61, 0.1);
  --down-soft: rgba(220, 38, 38, 0.1);
  --warn: #b45309;
  --warn-soft: rgba(217, 119, 6, 0.12);
  --shadow: 0 1px 2px rgba(15, 23, 42, 0.04), 0 10px 30px -18px rgba(15, 23, 42, 0.24);
}

@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --bg: #080d17;
    --panel: #0f172a;
    --panel-2: #0b1220;
    --text: #e2e8f0;
    --muted: #94a3b8;
    --border: #1e293b;
    --accent: #3b82f6;
    --accent-soft: rgba(59, 130, 246, 0.16);
    --up: #4ade80;
    --down: #f87171;
    --up-soft: rgba(74, 222, 128, 0.12);
    --down-soft: rgba(248, 113, 113, 0.12);
    --warn: #fbbf24;
    --warn-soft: rgba(251, 191, 36, 0.12);
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.35), 0 14px 34px -20px rgba(0, 0, 0, 0.9);
  }
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 14px/1.5 var(--font-sans);
}

.topbar {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
}
.brand { display: flex; gap: 12px; align-items: center; }
.brand h1 { margin: 0; font-size: 18px; }
.subtitle { margin: 0; color: var(--muted); font-size: 12px; }
.user-box { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }

main { max-width: 1280px; margin: 0 auto; padding: 24px 16px 48px; }
.view.narrow { max-width: 520px; margin: 0 auto; }

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px;
  margin-bottom: 20px;
}
.card.highlight { border-color: var(--accent); background: linear-gradient(var(--accent-soft), var(--accent-soft)), var(--panel); }
.card h2 { margin: 0 0 12px; font-size: 17px; }
.card-head { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; justify-content: space-between; margin-bottom: 8px; }
.card-head h2 { margin: 0; }
.grid-2 { display: grid; gap: 20px; grid-template-columns: repeat(auto-fit, minmax(360px, 1fr)); }
.grid-2 .card { margin-bottom: 0; }
.grid-2 + .card { margin-top: 20px; }

.muted { color: var(--muted); }
.small { font-size: 12px; }
.up { color: var(--up); }
.down { color: var(--down); }
.error { color: var(--down); min-height: 1.2em; margin: 0; }

button {
  font: inherit;
  font-weight: 600;
  border: 1px solid var(--accent);
  background: var(--accent);
  color: #fff;
  border-radius: 8px;
  padding: 8px 14px;
  cursor: pointer;
}
button:hover { filter: brightness(1.08); }
button:disabled { opacity: 0.6; cursor: wait; }
button.ghost { background: transparent; color: var(--accent); }
button.small { padding: 3px 8px; font-size: 12px; }

input {
  font: inherit;
  color: var(--text);
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 10px;
  width: 100%;
}
input:focus { outline: 2px solid var(--accent-soft); border-color: var(--accent); }

.form { display: flex; flex-direction: column; gap: 12px; }
.form label { display: flex; flex-direction: column; gap: 4px; font-weight: 600; font-size: 13px; }
fieldset { border: 1px solid var(--border); border-radius: 10px; padding: 12px 14px 14px; display: flex; flex-direction: column; gap: 10px; }
legend { color: var(--muted); font-size: 12px; padding: 0 4px; }
.actions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: flex-end; }

.banner { border-radius: 10px; padding: 10px 14px; margin-bottom: 16px; background: var(--accent-soft); }
.banner.error { background: var(--down-soft); color: var(--down); }
.banner.success { background: var(--up-soft); color: var(--up); }
.callout { margin: 16px 0; padding: 12px 14px; border-radius: 10px; background: var(--accent-soft); }

progress { width: 100%; height: 10px; }

.table-wrap { overflow-x: auto; }
table.data { width: 100%; border-collapse: collapse; font-variant-numeric: tabular-nums; }
table.data th, table.data td { padding: 8px 10px; border-bottom: 1px solid var(--border); text-align: left; vertical-align: top; }
table.data th { color: var(--muted); font-size: 12px; font-weight: 600; white-space: nowrap; }
table.data tfoot td { font-weight: 700; border-bottom: none; border-top: 2px solid var(--border); }
table.data tbody tr:hover { background: var(--panel-2); }
table.data.compact th, table.data.compact td { padding: 5px 8px; }
.num { text-align: right !important; white-space: nowrap; }
.row-actions { white-space: nowrap; text-align: right; }
.cell-input { width: 110px; text-align: right; padding: 4px 8px; }

.badge {
  display: inline-block;
  padding: 1px 8px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  background: var(--panel-2);
  border: 1px solid var(--border);
  white-space: nowrap;
}
.badge.up { color: var(--up); background: var(--up-soft); border-color: transparent; }
.badge.down { color: var(--down); background: var(--down-soft); border-color: transparent; }
.badge.accent { color: var(--accent); background: var(--accent-soft); border-color: transparent; }

.cards { display: grid; gap: 12px; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); margin-bottom: 20px; }
.stat { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 14px 16px; box-shadow: var(--shadow); }
.stat-value { font-size: 20px; font-weight: 700; font-variant-numeric: tabular-nums; }

.swap {
  display: grid;
  grid-template-columns: minmax(200px, 1fr) auto minmax(200px, 1fr) minmax(140px, auto) auto;
  gap: 12px;
  align-items: center;
  padding: 12px 0;
  border-top: 1px solid var(--border);
}
.swap .arrow { font-size: 20px; color: var(--muted); }
.swap-actions { display: flex; gap: 6px; justify-content: flex-end; }

dialog {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--panel);
  color: var(--text);
  padding: 20px;
  width: min(560px, calc(100vw - 32px));
  box-shadow: var(--shadow);
}
dialog::backdrop { background: rgba(8, 13, 23, 0.55); }
dialog h3 { margin: 0; }
dialog h4 { margin: 8px 0 0; }

@media (max-width: 760px) {
  .topbar { padding: 12px 16px; }
  .swap { grid-template-columns: 1fr; }
  .swap .arrow { transform: rotate(90deg); }
  .grid-2 { grid-template-columns: 1fr; }
}