:root {
  --bg: #f6f7f9; --card: #fff; --ink: #1d2433; --muted: #5d6677; --line: #dde1e8;
  --accent: #1f5fbf; --ok: #1e7b45; --warn: #9a6400; --bad: #b42318; --flag: #fff4e5;
}
* { 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); }
header { display: flex; justify-content: space-between; align-items: center; padding: 10px 20px; background: #1d2433; color: #fff; }
header a { color: #fff; text-decoration: none; }
.brand { font-weight: 600; }
nav { display: flex; gap: 16px; align-items: center; }
.who { color: #c9d1e0; }
main { max-width: 1200px; margin: 0 auto; padding: 20px 16px 60px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 8px; padding: 18px 22px; margin-bottom: 18px; overflow-x: auto; }
.card.narrow { max-width: 760px; }
h1 { font-size: 22px; margin: 4px 0 14px; } h2 { font-size: 18px; margin: 20px 0 10px; } h3 { font-size: 16px; margin: 18px 0 8px; }
label { display: block; margin: 10px 0; font-weight: 500; }
label input:not([type=checkbox]):not([type=radio]), label select { display: block; width: 100%; max-width: 480px; margin-top: 4px; padding: 7px 9px; border: 1px solid var(--line); border-radius: 5px; font: inherit; }
label.radio { font-weight: 400; display: flex; gap: 8px; align-items: center; }
fieldset { border: 0; padding: 0; margin: 8px 0; }
.grid2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 0 24px; }
button, a.button { display: inline-block; padding: 8px 14px; border: 1px solid var(--line); border-radius: 5px; background: #fff; color: var(--ink); font: inherit; cursor: pointer; text-decoration: none; margin: 4px 6px 4px 0; }
button.primary, a.button.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
button.danger { background: var(--bad); border-color: var(--bad); color: #fff; }
button.link { background: none; border: 0; color: #c9d1e0; padding: 0; margin: 0; }
form.inline { display: inline; }
table { border-collapse: collapse; width: 100%; margin: 8px 0; }
th, td { text-align: left; padding: 6px 8px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font-weight: 600; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }
td.center { text-align: center; }
table.counts { max-width: 640px; }
table.counts th { font-weight: 400; }
tr.o-problem td, td.flag, tr.flag td { color: var(--bad); font-weight: 600; }
tr.flag, td.flag { background: var(--flag); }
.samples span { display: inline-block; margin: 0 10px 2px 0; padding: 1px 6px; background: #f0f2f6; border-radius: 4px; font-size: 13px; }
table.mapping select { min-width: 220px; }
table.mapping .newfield input { width: 170px; } table.mapping .newfield select { width: 100px; }
tr.newcol { background: #fffbe6; }
.mono { font-family: ui-monospace, Menlo, Consolas, monospace; }
.hint { color: var(--muted); font-weight: 400; font-size: 13px; display: block; margin-top: 4px; }
.msg { padding: 10px 12px; border-radius: 6px; margin: 10px 0; }
.msg.error { background: #fdecea; color: var(--bad); }
.msg.warn { background: #fff4e5; color: var(--warn); }
.msg.ok { background: #e8f5ee; color: var(--ok); }
.working { color: var(--accent); font-weight: 600; }
.tag { display: inline-block; font-size: 12px; padding: 0 6px; border-radius: 10px; background: #eef1f6; color: var(--muted); }
.status { padding: 1px 8px; border-radius: 10px; font-size: 13px; background: #eef1f6; }
.s-applied { background: #e8f5ee; color: var(--ok); } .s-undone { background: #f0f0f0; color: var(--muted); }
.s-failed { background: #fdecea; color: var(--bad); } .s-previewed { background: #e9f0fb; color: var(--accent); }
dl.summary { display: grid; grid-template-columns: max-content 1fr; gap: 4px 16px; margin: 0 0 10px; }
dl.summary dt { color: var(--muted); } dl.summary dd { margin: 0; }
.crumbs { color: var(--muted); font-size: 13px; margin: 0; }
.crumbs a { color: var(--muted); }
ul.cols { columns: 2; padding-left: 18px; }
@media (max-width: 640px) { ul.cols { columns: 1; } dl.summary { grid-template-columns: 1fr; } }