:root {
  --bg: #f4f7f6; --card: #ffffff; --ink: #14201e; --muted: #5b6b68; --line: #dbe5e2;
  --brand: #0f766e; --brand-ink: #ffffff; --good: #047857; --bad: #b91c1c; --warn-bg: #fef2f2;
  --radius: 14px;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #0c1413; --card: #142120; --ink: #e6f1ef; --muted: #93a8a4; --line: #243735;
          --brand: #2dd4bf; --brand-ink: #04211e; --good: #34d399; --bad: #f87171; --warn-bg: #3b1515; }
}
* { 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, "Noto Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
  padding: env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);
}
.top { display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; padding: 16px 16px 4px; max-width: 760px; margin: 0 auto; }
h1 { font-size: 1.5rem; margin: 0; letter-spacing: -.01em; }
h2 { font-size: 1.05rem; margin: 0 0 12px; }
.tagline { margin: 2px 0 0; color: var(--muted); font-size: .92rem; }
main { max-width: 760px; margin: 0 auto; padding: 8px 16px 40px; display: grid; gap: 14px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
fieldset { border: 0; margin: 0 0 14px; padding: 0; }
legend { font-weight: 650; margin-bottom: 8px; padding: 0; color: var(--brand); }
.grid { display: grid; grid-template-columns: 1fr; gap: 10px; }
@media (min-width: 560px) { .grid { grid-template-columns: 1fr 1fr; } }
.field { display: grid; gap: 4px; }
.field label { font-size: .85rem; color: var(--muted); }
input, select, button { font: inherit; }
input, select {
  width: 100%; min-height: 46px; padding: 8px 12px; border-radius: 10px;
  border: 1px solid var(--line); background: var(--bg); color: var(--ink);
}
input:focus-visible, select:focus-visible, button:focus-visible { outline: 3px solid var(--brand); outline-offset: 1px; }
button {
  min-height: 46px; padding: 8px 16px; border-radius: 10px; border: 0; cursor: pointer;
  background: var(--brand); color: var(--brand-ink); font-weight: 650;
}
button.ghost { background: transparent; color: var(--ink); border: 1px solid var(--line); }
button.small { min-height: 36px; padding: 4px 12px; font-size: .9rem; }
.lang select { min-height: 40px; width: auto; }
#errors:not(:empty) { background: var(--warn-bg); color: var(--bad); border-radius: 10px; padding: 8px 12px; margin-bottom: 10px; font-size: .92rem; }
.hero { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 12px; }
.k { color: var(--muted); font-size: .85rem; }
.big { font-size: clamp(1.35rem, 6vw, 2rem); font-weight: 750; font-variant-numeric: tabular-nums; overflow-wrap: anywhere; }
.big.good { color: var(--good); } .big.bad { color: var(--bad); }
.sub { color: var(--muted); font-size: .85rem; }
.wf { list-style: none; margin: 0 0 12px; padding: 0; display: grid; gap: 6px; }
.wf li { display: grid; grid-template-columns: 1fr auto; gap: 2px 10px; font-size: .92rem; font-variant-numeric: tabular-nums; }
.wf li .bar { grid-column: 1 / -1; height: 4px; border-radius: 2px; background: var(--line); overflow: hidden; }
.wf li .bar i { display: block; height: 100%; background: var(--brand); }
.wf li.minus .bar i { background: var(--bad); opacity: .75; }
.wf li.total { font-weight: 700; border-top: 1px solid var(--line); padding-top: 6px; }
.row-actions, .inline { display: flex; gap: 10px; flex-wrap: wrap; }
.inline input { flex: 1 1 160px; }
.kv { display: grid; grid-template-columns: 1fr auto; gap: 6px 12px; margin: 12px 0; }
.kv dt { color: var(--muted); } .kv dd { margin: 0; font-weight: 700; font-variant-numeric: tabular-nums; text-align: right; }
.scroll { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-variant-numeric: tabular-nums; }
th, td { text-align: right; padding: 8px 6px; border-bottom: 1px solid var(--line); white-space: nowrap; }
th:first-child, td:first-child { text-align: left; }
th { font-size: .8rem; color: var(--muted); font-weight: 600; }
tr.base td { font-weight: 700; }
td.neg { color: var(--bad); }
.scenarios { list-style: none; padding: 0; margin: 12px 0 0; display: grid; gap: 8px; }
.scenarios li { display: grid; grid-template-columns: 1fr auto; gap: 4px 8px; align-items: center; border: 1px solid var(--line); border-radius: 10px; padding: 8px 10px; }
.scenarios .meta { color: var(--muted); font-size: .85rem; grid-column: 1; }
.scenarios .btns { grid-column: 2; grid-row: 1 / span 2; display: flex; gap: 6px; }
.note p { margin: 0; color: var(--muted); font-size: .88rem; }
.empty { color: var(--muted); font-size: .9rem; }
@media print { .row-actions, #target-card, .lang, #sc-list, button { display: none !important; } }