:root {
  --red: #E30615;
  --blue: #0E08A0;
  --ink: #1B1716;
  --bg: #F4F4F6;
  --card: #FFFFFF;
  --line: #E2E2E8;
  --muted: #6B6770;
  --good: #137a3f;
}
@media (prefers-color-scheme: dark) {
  :root {
    --ink: #F2F1F3;
    --bg: #121117;
    --card: #1C1B22;
    --line: #2E2D36;
    --muted: #A19DA8;
    --blue: #8C88FF;
    --good: #4cc27f;
  }
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font: 15px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color: var(--ink);
  background: var(--bg);
}
.wrap { max-width: 760px; margin: 0 auto; padding: 0 16px; }

.top { background: #0E08A0; color: #fff; padding: 20px 0 18px; border-bottom: 4px solid var(--red); }
.top h1 { margin: 0; font-size: 22px; }
.top .sub { margin: 2px 0 0; opacity: .8; font-size: 13px; }

.tabs { display: flex; gap: 8px; margin: 18px 0 12px; }
.tabs button {
  flex: 1; padding: 10px; font: inherit; font-weight: 600;
  border: 1px solid var(--line); border-radius: 10px;
  background: var(--card); color: var(--ink); cursor: pointer;
}
.tabs button[aria-selected="true"] { background: var(--red); border-color: var(--red); color: #fff; }

.card {
  background: var(--card); border: 1px solid var(--line); border-radius: 14px;
  padding: 16px; margin-bottom: 14px;
}
.card h2 { margin: 0 0 6px; font-size: 16px; }
.card-head { display: flex; justify-content: space-between; align-items: center; gap: 8px; flex-wrap: wrap; }
.actions { display: flex; gap: 6px; }
.hint { color: var(--muted); font-size: 13px; margin: 2px 0 12px; }

.grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
@media (max-width: 560px) { .grid { grid-template-columns: 1fr; } }
.field { display: flex; flex-direction: column; gap: 4px; }
.lbl { font-size: 13px; font-weight: 600; }
.help { font-size: 12px; color: var(--muted); }
.field input {
  font: inherit; padding: 9px 10px; text-align: right;
  border: 1px solid var(--line); border-radius: 8px;
  background: var(--bg); color: var(--ink);
}
.field input:focus { outline: 2px solid var(--blue); outline-offset: -1px; }

.btn {
  font: inherit; font-size: 13px; padding: 7px 12px; border-radius: 8px; cursor: pointer;
  border: 1px solid var(--line); background: transparent; color: var(--ink);
}
.btn:hover { border-color: var(--blue); }

.breakdown { width: 100%; border-collapse: collapse; margin-top: 6px; }
.breakdown th, .breakdown td { padding: 8px 0; border-bottom: 1px solid var(--line); vertical-align: top; }
.breakdown th { text-align: left; font-weight: 500; }
.breakdown td { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; padding-left: 12px; }
.breakdown .detail { display: block; font-size: 12px; color: var(--muted); font-weight: 400; }
.breakdown tr.sub th, .breakdown tr.sub td { font-weight: 700; border-bottom: 2px solid var(--ink); }
.breakdown td.neg { color: var(--red); }

.total-card { border-color: var(--blue); }
.total-row { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; }
.total-row strong { font-size: 24px; color: var(--blue); font-variant-numeric: tabular-nums; }
.total-row.small { margin-top: 8px; font-size: 14px; color: var(--muted); }
.total-row.small strong { font-size: 16px; color: var(--ink); }
.total-row strong.ok { color: var(--good); }
.total-row strong.warn { color: var(--red); }

.settings summary { cursor: pointer; font-weight: 600; }
.settings .btn { margin-top: 12px; }

.foot { color: var(--muted); font-size: 12px; text-align: center; margin: 8px 0 32px; }

.table-scroll { overflow-x: auto; margin: 0 -16px; padding: 0 16px; }
.breakdown thead th { font-size: 12px; color: var(--muted); font-weight: 600; text-align: right; border-bottom: 2px solid var(--line); }
.breakdown thead th:first-child { text-align: left; }
.breakdown { min-width: 620px; }
.field select {
  font: inherit; padding: 9px 10px; border: 1px solid var(--line);
  border-radius: 8px; background: var(--bg); color: var(--ink);
}