:root {
  --bg: #f4f6f7;
  --card: #ffffff;
  --text: #1c2529;
  --muted: #5d6b72;
  --line: #d9e0e3;
  --accent: #0f766e;
  --accent-text: #ffffff;
  --good: #15803d;
  --bad: #b91c1c;
  --bad-bg: #fdecec;
  --out-bg: #f0f7f6;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #12181b;
    --card: #1b2327;
    --text: #e6ecee;
    --muted: #9aa8ae;
    --line: #2f3b41;
    --accent: #2dd4bf;
    --accent-text: #06201d;
    --good: #4ade80;
    --bad: #f87171;
    --bad-bg: #3a1d1d;
    --out-bg: #16292a;
  }
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.6 system-ui, -apple-system, "Segoe UI", "PingFang TC", "Microsoft JhengHei", sans-serif;
}
.hero { max-width: 1200px; margin: 0 auto; padding: 32px 16px 8px; }
.hero h1 { margin: 0 0 4px; font-size: 1.8rem; }
.lead { margin: 0 0 8px; font-size: 1.1rem; color: var(--muted); }
.privacy { margin: 0; font-size: 0.95rem; }
main { max-width: 1200px; margin: 0 auto; padding: 8px 16px 48px; }

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 20px;
  margin-top: 16px;
}
.card h2 { margin: 0 0 12px; font-size: 1.15rem; }

.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 14px; }
label { display: flex; flex-direction: column; gap: 4px; font-size: 0.9rem; font-weight: 600; }
label small { font-weight: 400; color: var(--muted); }
input, select, textarea {
  font: inherit;
  color: var(--text);
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 7px 9px;
  width: 100%;
}
input:focus, select:focus, textarea:focus, button:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }

.paste { margin-bottom: 14px; }
.paste summary { cursor: pointer; font-weight: 600; color: var(--accent); }
.paste p { margin: 8px 0; font-size: 0.9rem; color: var(--muted); }

.actions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
button, .button {
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid var(--accent);
  background: var(--accent);
  color: var(--accent-text);
  border-radius: 8px;
  padding: 8px 14px;
  text-decoration: none;
  display: inline-block;
}
button.ghost { background: transparent; color: var(--accent); }
button.danger { border-color: var(--bad); color: var(--bad); }
button.icon { border: none; background: transparent; color: var(--muted); padding: 4px 8px; }

.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 8px; }
table { border-collapse: collapse; width: 100%; min-width: 1120px; font-size: 0.9rem; }
th, td { padding: 6px 6px; border-bottom: 1px solid var(--line); text-align: right; white-space: nowrap; }
th { font-weight: 600; color: var(--muted); background: var(--bg); position: sticky; top: 0; }
th.col-name, th.col-cat, td.name, td.cat { text-align: left; }
td input { padding: 5px 6px; text-align: right; min-width: 64px; }
td.name input { text-align: left; min-width: 130px; }
td.cat input { text-align: left; min-width: 170px; }
td.pre { text-align: center; }
td.pre input { width: auto; min-width: 0; }
th.out, td.out { background: var(--out-bg); font-variant-numeric: tabular-nums; }
tr.losing td.out { background: var(--bad-bg); }
.neg { color: var(--bad); font-weight: 700; }
.pos { color: var(--good); font-weight: 600; }
tr.detail td { text-align: left; white-space: normal; background: var(--bg); font-size: 0.85rem; color: var(--muted); }
tr.detail table { min-width: 0; width: auto; font-size: inherit; }
tr.detail th, tr.detail td { border: none; padding: 2px 12px 2px 0; background: transparent; position: static; }

.stats { display: grid; grid-template-columns: repeat(auto-fill, minmax(170px, 1fr)); gap: 12px; }
.stat { border: 1px solid var(--line); border-radius: 10px; padding: 12px; }
.stat .k { font-size: 0.85rem; color: var(--muted); }
.stat .v { font-size: 1.4rem; font-weight: 700; font-variant-numeric: tabular-nums; }
.stat .v small { font-size: 0.85rem; font-weight: 400; color: var(--muted); }
.advice { margin: 14px 0 0; padding: 12px; border-left: 4px solid var(--accent); background: var(--out-bg); border-radius: 0 8px 8px 0; }
.advice:empty { display: none; }

.quick { border-color: var(--accent); border-width: 2px; }
.quick .grid { max-width: 520px; }
.hint { margin: 10px 0 0; font-size: 0.85rem; color: var(--muted); }

.notes ul { margin: 0; padding-left: 20px; font-size: 0.9rem; color: var(--muted); }
.notes li { margin-bottom: 6px; }
.disclaimer { font-size: 0.85rem; color: var(--muted); margin: 12px 0 0; }