:root {
  --bg: #f6f8f7; --card: #ffffff; --ink: #14201d; --muted: #5b6b66; --line: #dbe3e0; --brand: #0f766e; --brand-ink: #ffffff;
  --pos: #0b7a4b; --neg: #b3261e; --warn: #8a5a00; --warn-bg: #fff4d6; --bad-bg: #fde8e6; --ok-bg: #e3f5ec; --radius: 14px;
}
:root[data-theme="dark"] { color-scheme: dark; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0e1513; --card: #16201d; --ink: #e6efec; --muted: #9db0aa; --line: #263733; --brand: #2dd4bf; --brand-ink: #062b27;
    --pos: #5ee0a0; --neg: #ff8a80; --warn: #ffd27a; --warn-bg: #3a2e10; --bad-bg: #40201d; --ok-bg: #12301f;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 16px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
#app { max-width: 720px; margin: 0 auto; padding: 16px; padding-bottom: 80px; }
h1 { font-size: 1.6rem; margin: 8px 0 4px; } h2 { font-size: 1.15rem; margin: 18px 0 8px; } h3 { font-size: 1rem; margin: 12px 0 6px; }
a { color: var(--brand); }
.muted { color: var(--muted); } .center { text-align: center; } .small { font-size: .86rem; } .right { text-align: right; } .mono { font-family: ui-monospace, Consolas, monospace; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px; margin: 10px 0; }
.row { display: flex; gap: 10px; align-items: center; } .row.wrap { flex-wrap: wrap; } .grow { flex: 1; min-width: 0; } .between { justify-content: space-between; }
.stack > * + * { margin-top: 10px; }
button, .button { font: inherit; border: 1px solid var(--line); background: var(--card); color: var(--ink); border-radius: 10px; padding: 10px 14px; cursor: pointer; text-decoration: none; display: inline-block; }
button.primary, .button.primary { background: var(--brand); color: var(--brand-ink); border-color: var(--brand); font-weight: 600; }
button.danger { color: var(--neg); border-color: var(--neg); } button.small, .button.small { padding: 5px 9px; font-size: .86rem; }
button:disabled { opacity: .5; cursor: not-allowed; } button:focus-visible, a:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible { outline: 3px solid var(--brand); outline-offset: 2px; }
label { display: block; font-size: .9rem; color: var(--muted); margin: 10px 0 4px; }
input, select, textarea { font: inherit; width: 100%; padding: 10px; border: 1px solid var(--line); border-radius: 10px; background: var(--bg); color: var(--ink); }
input[type="checkbox"], input[type="radio"] { width: auto; }
.check { display: flex; gap: 8px; align-items: center; color: var(--ink); font-size: 1rem; margin: 6px 0; }
.tabs { display: flex; gap: 4px; overflow-x: auto; margin: 10px 0; border-bottom: 1px solid var(--line); }
.tabs a { padding: 10px 12px; text-decoration: none; color: var(--muted); border-bottom: 3px solid transparent; white-space: nowrap; }
.tabs a[aria-current="page"] { color: var(--brand); border-bottom-color: var(--brand); font-weight: 600; }
.badge { display: inline-block; font-size: .75rem; padding: 2px 8px; border-radius: 99px; background: var(--line); color: var(--ink); }
.notice { border-radius: 10px; padding: 10px 12px; margin: 10px 0; } .notice.warn { background: var(--warn-bg); color: var(--warn); } .notice.bad { background: var(--bad-bg); color: var(--neg); } .notice.ok { background: var(--ok-bg); color: var(--pos); }
.pos { color: var(--pos); } .neg { color: var(--neg); } .amount { font-variant-numeric: tabular-nums; white-space: nowrap; font-weight: 600; }
.voided { opacity: .55; text-decoration: line-through; }
.bar { height: 8px; background: var(--brand); border-radius: 4px; min-width: 2px; }
table { width: 100%; border-collapse: collapse; } td, th { padding: 6px 4px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; } th { color: var(--muted); font-weight: 500; font-size: .85rem; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
.fab { position: fixed; right: 16px; bottom: calc(16px + env(safe-area-inset-bottom)); box-shadow: 0 6px 18px rgba(0,0,0,.25); border-radius: 99px; padding: 14px 20px; }
footer { margin-top: 30px; text-align: center; }
@media print {
  body { background: #fff; color: #000; } #app { max-width: none; padding: 0; } .tabs, .fab, button, .no-print, footer { display: none !important; }
  .card { border: none; border-bottom: 1px solid #999; border-radius: 0; break-inside: avoid; } .pos, .neg { color: #000; }
}