:root {
  --bg: #f4f5f7; --card: #fff; --ink: #1a1f24; --muted: #6b7280;
  --line: #e5e7eb; --brand: #0f766e; --brand-ink: #0b544e;
  --pos: #15803d; --neg: #b91c1c; --danger: #dc2626;
  --radius: 14px; --shadow: 0 1px 3px rgba(0,0,0,.08);
}
@media (prefers-color-scheme: dark) {
  :root { --bg:#0f1417; --card:#171d21; --ink:#e7edf0; --muted:#9aa4ad;
    --line:#2a3237; --brand:#2dd4bf; --brand-ink:#5eead4; --shadow:none; }
}
* { box-sizing: border-box; }
body { margin: 0; font: 16px/1.5 system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  background: var(--bg); color: var(--ink); -webkit-text-size-adjust: 100%; }
.topbar { position: sticky; top: 0; z-index: 10; display: flex; align-items: center;
  justify-content: space-between; gap: 12px; padding: 12px 16px; padding-top: max(12px, env(safe-area-inset-top));
  background: var(--brand); color: #fff; }
.brand { color: #fff; text-decoration: none; font-weight: 800; font-size: 20px; letter-spacing: -.5px; }
.brand span { opacity: .8; font-weight: 500; }
.ctx { font-size: 14px; opacity: .95; text-align: right; }
.app { max-width: 720px; margin: 0 auto; padding: 16px; padding-bottom: 40px; }
.loading { color: var(--muted); text-align: center; padding: 40px; }

.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 16px; margin-bottom: 16px; }
h1 { font-size: 22px; margin: 4px 0 16px; }
h2 { font-size: 15px; text-transform: uppercase; letter-spacing: .5px; color: var(--muted); margin: 0 0 12px; }
label { display: block; font-size: 13px; color: var(--muted); margin: 10px 0 4px; }
input, select { width: 100%; padding: 11px 12px; font-size: 16px; color: var(--ink);
  background: var(--bg); border: 1px solid var(--line); border-radius: 10px; }
input:focus, select:focus { outline: 2px solid var(--brand); border-color: var(--brand); }
.row { display: flex; gap: 10px; }
.row > * { flex: 1; }
button { font: inherit; cursor: pointer; border: none; border-radius: 10px; padding: 11px 16px; font-weight: 600; }
.btn { background: var(--brand); color: #fff; }
.btn:active { transform: translateY(1px); }
.btn-ghost { background: transparent; color: var(--brand); border: 1px solid var(--brand); }
.btn-sm { padding: 6px 12px; font-size: 14px; }
.btn-block { width: 100%; margin-top: 14px; }
.btn-link { background: none; color: var(--muted); padding: 4px; }

.tabs { display: flex; gap: 6px; margin-bottom: 16px; }
.tabs button { flex: 1; background: var(--card); border: 1px solid var(--line); color: var(--muted); }
.tabs button.active { background: var(--brand); color: #fff; border-color: var(--brand); }

.list { list-style: none; margin: 0; padding: 0; }
.item { display: flex; align-items: center; gap: 12px; padding: 12px 0; border-top: 1px solid var(--line); }
.item:first-child { border-top: none; }
.item .grow { flex: 1; min-width: 0; }
.item .title { font-weight: 600; }
.item .sub { font-size: 13px; color: var(--muted); }
.amount { font-variant-numeric: tabular-nums; font-weight: 700; white-space: nowrap; }
.pos { color: var(--pos); } .neg { color: var(--neg); }
.pill { display: inline-block; background: var(--bg); border: 1px solid var(--line);
  border-radius: 999px; padding: 2px 10px; font-size: 12px; color: var(--muted); }
.muted { color: var(--muted); }
.empty { color: var(--muted); text-align: center; padding: 24px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip { padding: 8px 14px; border-radius: 999px; border: 1px solid var(--line);
  background: var(--card); color: var(--ink); }
.chip.on { background: var(--brand); color: #fff; border-color: var(--brand); }
.share { display: flex; gap: 8px; align-items: center; }
.share input { font-size: 13px; }
.transfer { display: flex; align-items: center; gap: 10px; padding: 12px 0; border-top: 1px solid var(--line); }
.transfer:first-child { border-top: none; }
.toast { position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%);
  background: var(--ink); color: var(--bg); padding: 10px 18px; border-radius: 999px;
  font-size: 14px; box-shadow: 0 4px 12px rgba(0,0,0,.25); z-index: 100; }