:root {
  --bg: #ffffff; --fg: #1b1f24; --muted: #5a6370; --card: #f5f7fa; --line: #d5dbe3; --accent: #1f5fae;
  --good: #1d6b3a; --warn: #8a5a00; --bad: #a12a2a;
  --c1: #1f5fae; --c2: #2f8a57; --c3: #b5651d; --c4: #6b4fa6; --c5: #2a8c8c; --c6: #a12a2a; --c7: #7a7f87;
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #121417; --fg: #e8ebef; --muted: #a3acb8; --card: #1c2026; --line: #333a44; --accent: #7fb0ff;
    --good: #6fd08f; --warn: #f0c060; --bad: #ff8a8a; }
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
@media print { * { -webkit-print-color-adjust: exact; print-color-adjust: exact; } }
body { margin: 0; background: var(--bg); color: var(--fg); line-height: 1.45; }
.top { display: flex; justify-content: space-between; align-items: center; padding: 0.75rem 1.25rem; border-bottom: 1px solid var(--line); }
.top h1 { margin: 0; font-size: 1.4rem; color: var(--accent); }
.mode button { border: 1px solid var(--line); background: var(--card); color: var(--fg); padding: 0.35rem 0.8rem; cursor: pointer; }
.mode button[aria-pressed="true"] { background: var(--accent); color: var(--bg); }
.hero { padding: 0.5rem 1.25rem; }
.tagline { font-size: 1.2rem; font-weight: 600; margin: 0.25rem 0; }
.sample { color: var(--warn); font-weight: 600; }
.layout { display: grid; grid-template-columns: minmax(260px, 340px) 1fr; gap: 1.25rem; padding: 0 1.25rem 1.25rem; }
@media (max-width: 860px) { .layout { grid-template-columns: 1fr; } }
.inputs fieldset { border: 1px solid var(--line); border-radius: 8px; margin: 0 0 1rem; padding: 0.75rem; }
.inputs legend { font-weight: 700; }
.inputs label { display: block; margin: 0.4rem 0; font-size: 0.92rem; }
.inputs input, .inputs select { display: block; width: 100%; padding: 0.35rem; margin-top: 0.15rem; border: 1px solid var(--line); border-radius: 4px; background: var(--bg); color: var(--fg); }
.inputs input[aria-invalid="true"] { border-color: var(--bad); }
.unit { font-size: 0.75rem; color: var(--muted); border: 1px solid var(--line); border-radius: 3px; padding: 0 0.25rem; }
.help, .muted { color: var(--muted); font-size: 0.85rem; }
.errors { color: var(--bad); font-weight: 600; white-space: pre-line; }
.field-error { display: block; color: var(--bad); font-size: 0.85rem; font-weight: 600; margin-top: 0.15rem; }
.stale { color: var(--warn); font-weight: 600; }
.inputs .help { margin: 0 0 0.4rem; }
.acct { border-top: 1px solid var(--line); padding-top: 0.4rem; margin-top: 0.5rem; }
.acct h4 { margin: 0.2rem 0; font-size: 0.95rem; }
.inputs label.check { display: flex; gap: 0.4rem; align-items: center; }
.inputs label.check input { display: inline; width: auto; margin: 0; }
.inputs input:disabled { opacity: 0.5; }
.file-buttons { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.file-buttons button, .file, #run-mc { border: 1px solid var(--line); background: var(--card); color: var(--fg); padding: 0.35rem 0.6rem; border-radius: 4px; cursor: pointer; font-size: 0.85rem; }
.file input { display: none; }
.tiles { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 0.6rem; }
.tile { background: var(--card); border-radius: 8px; padding: 0.6rem 0.8rem; }
.tile .v { font-size: 1.5rem; font-weight: 700; }
.tile .l { color: var(--muted); font-size: 0.85rem; }
.card { background: var(--card); border-radius: 8px; padding: 0.8rem 1rem; margin: 0.8rem 0; }
.status { font-weight: 700; }
.status.Strong, .status.On { color: var(--good); }
.status.Needs, .status.Behind { color: var(--warn); }
.status.Significant { color: var(--bad); }
.measures { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 0.4rem; margin-top: 0.5rem; font-size: 0.9rem; }
.chart svg { width: 100%; height: auto; display: block; }
.chart text { fill: var(--muted); font-size: 10px; }
.legend { display: flex; flex-wrap: wrap; gap: 0.6rem; font-size: 0.8rem; color: var(--muted); }
.legend span::before { content: ""; display: inline-block; width: 0.7rem; height: 0.7rem; margin-right: 0.25rem; vertical-align: -1px; background: var(--sw); }
.table-wrap { overflow-x: auto; }
table { border-collapse: collapse; font-size: 0.82rem; width: 100%; }
th, td { border-bottom: 1px solid var(--line); padding: 0.25rem 0.4rem; text-align: right; white-space: nowrap; }
th:first-child, td:first-child { text-align: left; }
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 0.6rem; }
.wcard { background: var(--card); border-radius: 8px; padding: 0.6rem 0.8rem; font-size: 0.88rem; }
.wcard .delta.up { color: var(--good); } .wcard .delta.down { color: var(--bad); }
.warnings ul { font-size: 0.85rem; color: var(--muted); }
footer { border-top: 1px solid var(--line); padding: 0.75rem 1.25rem; color: var(--muted); font-size: 0.85rem; }
body.simple .advanced-only { display: none; }
.save-bar { display: flex; justify-content: space-between; align-items: center; gap: 0.5rem; padding: 0.5rem 0.7rem; border-radius: 8px; margin-bottom: 0.6rem; font-size: 0.88rem; font-weight: 600; position: sticky; top: 0; z-index: 2; background: var(--card); border: 1px solid var(--line); }
.save-bar[data-state="dirty"], .save-bar[data-state="sample"] { border-color: var(--warn); color: var(--warn); }
.save-bar[data-state="saved"] { border-color: var(--good); color: var(--good); }
.save-bar button { border: 1px solid var(--line); background: var(--bg); color: var(--fg); padding: 0.3rem 0.6rem; border-radius: 4px; cursor: pointer; font-weight: 600; }
.inputs .mode { margin: 0.2rem 0 0.3rem; }
.presets { display: flex; flex-wrap: wrap; gap: 0.3rem; margin: 0.2rem 0; }
.presets button, button.add, button.remove { border: 1px solid var(--line); background: var(--card); color: var(--fg); padding: 0.25rem 0.55rem; border-radius: 4px; cursor: pointer; font-size: 0.82rem; }
.rows .row { border: 1px solid var(--line); border-radius: 6px; padding: 0.4rem 0.6rem; margin: 0.4rem 0; }
button.remove { color: var(--bad); margin-top: 0.2rem; }
.tile .l { font-weight: 600; color: var(--fg); }
.tile .d { color: var(--muted); font-size: 0.8rem; margin-top: 0.2rem; }
.headline { font-size: 1.05rem; }
ul.explain { margin: 0.3rem 0 0.6rem; padding-left: 1.2rem; }
ul.explain li { margin: 0.2rem 0; }
.profile legend { font-size: 1.05rem; }
.profile h4 { margin: 0.8rem 0 0.2rem; }
.acct h5 { margin: 0.2rem 0; font-size: 0.92rem; }
.tabs { display: flex; flex-wrap: wrap; gap: 0.25rem; margin: 0.4rem 0 0.8rem; border-bottom: 1px solid var(--line); }
.tabs button { border: 1px solid var(--line); border-bottom: none; border-radius: 6px 6px 0 0; background: var(--bg); color: var(--fg); padding: 0.35rem 0.7rem; cursor: pointer; font-size: 0.88rem; margin-bottom: -1px; }
.tabs button[aria-selected="true"] { background: var(--card); font-weight: 700; border-bottom: 1px solid var(--card); }
.tabs button.has-error::after { content: " •"; color: var(--bad); font-weight: 700; }
.panel.tab-off { display: none; }
.tab-steps { display: flex; justify-content: space-between; margin: 0 0 0.8rem; }
.tab-steps button { border: 1px solid var(--line); background: var(--card); color: var(--fg); padding: 0.35rem 0.8rem; border-radius: 4px; cursor: pointer; }
.tab-steps button:disabled { opacity: 0.4; cursor: default; }
.start-error { border: 2px solid var(--bad); color: var(--bad); padding: 0.6rem 0.8rem; border-radius: 8px; font-weight: 600; }