:root { color-scheme: light; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", sans-serif; color: #222b34; background: #fafbfc; font-size: 14px; line-height: 1.55; }
* { box-sizing: border-box; }
body { margin: 0; }
button, input, select, textarea { font: inherit; }
button, select, input { min-height: 34px; }
button { cursor: pointer; padding: 5px 12px; border: 1px solid #b8c1ca; border-radius: 3px; background: #fff; color: #263746; white-space: nowrap; }
button:hover { background: #eef2f6; border-color: #8898a8; }
button:disabled { cursor: default; color: #8a9199; background: #f3f4f5; }
button.primary { color: white; border-color: #285e8e; background: #285e8e; }
button.primary:hover { background: #1e4c75; }
button.primary:disabled { background: #7a94ab; border-color: #7a94ab; }
a { color: #245d91; text-underline-offset: 3px; }
a:hover { color: #123853; }
:focus-visible { outline: 2px solid #1675c4; outline-offset: 3px; }
[hidden] { display: none !important; }
.topbar { background: #fff; border-bottom: 1px solid #dbe1e6; display: flex; justify-content: space-between; align-items: center; padding: 14px max(24px, calc((100vw - 1160px) / 2)); gap: 16px; }
.brand { color: #222b34; text-decoration: none; font-size: 19px; font-weight: 650; letter-spacing: -.4px; }
nav { display: flex; align-items: center; gap: 20px; }
nav a { text-decoration: none; }
nav button { padding: 3px 9px; font-size: 13px; }
main { max-width: 1160px; margin: 0 auto; padding: 30px 0 0; }
h1 { font-size: 26px; font-weight: 650; line-height: 1.3; margin: 0 0 10px; letter-spacing: -.5px; }
h2 { font-size: 17px; font-weight: 650; margin: 0; }
h3 { font-size: 15px; font-weight: 650; margin: 0; overflow-wrap: anywhere; }
p { margin: 8px 0; }
.intro { max-width: 860px; color: #45525e; }
.privacy { color: #5e6d63; font-size: 13px; margin: 8px 0 25px; }
.inputs { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.inputs section { min-width: 0; }
.section-head { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-bottom: 8px; }
.section-head > label { font-weight: 650; font-size: 15px; }
textarea { display: block; width: 100%; min-height: 192px; padding: 12px; resize: vertical; border: 1px solid #b8c1ca; border-radius: 3px; background: #fff; font-family: ui-monospace, Consolas, monospace; font-size: 13px; line-height: 1.7; tab-size: 3; }
.hint { font-size: 12px; color: #626c77; }
.inputs .hint { min-height: 38px; margin-top: 7px; }
.options { display: flex; align-items: flex-end; gap: 14px; flex-wrap: wrap; }
.options label { display: flex; flex-direction: column; gap: 3px; font-size: 12px; }
input, select { border: 1px solid #b8c1ca; border-radius: 3px; color: #273747; background: #fff; padding: 4px 7px; max-width: 100%; }
input[type="number"] { width: 78px; }
input[type="checkbox"] { min-height: auto; width: 16px; height: 16px; margin: 0; accent-color: #285e8e; }
.options .checkbox { flex-direction: row; align-items: center; gap: 7px; padding-bottom: 8px; }
.mode-label select { min-width: 240px; }
.run-line { display: flex; align-items: center; gap: 14px; margin: 24px 0; min-height: 36px; }
#error { padding: 10px 14px; background: #fff4f3; border-left: 3px solid #ac463d; color: #8b2922; }
#results { border-top: 1px solid #d6dde3; padding-top: 18px; }
.results-head { display: flex; align-items: center; gap: 20px; flex-wrap: wrap; }
#summary { flex: 1; margin: 0; font-size: 13px; }
.filter-line { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin: 13px 0 10px; }
.filter-line label { display: flex; align-items: center; gap: 8px; font-size: 12px; }
.table-scroll { overflow-x: auto; background: white; border: 1px solid #d4dce3; border-radius: 3px; }
table { width: 100%; border-collapse: collapse; text-align: left; font-size: 13px; }
th { background: #f0f3f5; font-weight: 600; color: #4b5661; }
th, td { padding: 9px 12px; border-bottom: 1px solid #e5e9ed; vertical-align: top; }
th { white-space: nowrap; }
tbody tr:last-child td { border-bottom: 0; }
td:first-child { color: #7a848f; width: 40px; }
td:nth-child(2) { min-width: 150px; overflow-wrap: anywhere; }
td:nth-child(3) { white-space: nowrap; }
td:nth-child(4) { min-width: 120px; white-space: pre-wrap; overflow-wrap: anywhere; }
td:last-child { min-width: 220px; max-width: 430px; }
.path { display: block; font-family: ui-monospace, Consolas, monospace; font-size: 12px; overflow-wrap: anywhere; margin: 0 0 4px; }
.row-action { padding: 2px 8px; min-height: 27px; font-size: 12px; }
.status-Ready { color: #27674d; }
.status-Missing { color: #a04435; }
.status-Ambiguous { color: #8a611a; }
.status-Invalid { color: #9b3f3f; }
.review { margin: 14px 0; padding: 14px 18px; border-left: 3px solid #7896ae; background: #edf2f6; }
.candidate-filter { display: flex; flex-direction: column; max-width: 600px; gap: 4px; margin: 12px 0; font-size: 12px; }
#candidates { display: block; width: 100%; border-radius: 0; font-family: ui-monospace, Consolas, monospace; font-size: 13px; margin-top: 5px; }
#candidates option { padding: 6px; }
.help { margin-top: 36px; padding: 22px 0; border-top: 1px solid #d6dde3; color: #4c5965; font-size: 13px; }
.help h2 { color: #273541; }
.help > p { max-width: 910px; }
.separator { color: #8a939c; margin: 0 8px; }
details { margin-top: 14px; font-size: 12px; max-width: 970px; }
summary { cursor: pointer; }
footer { max-width: 1160px; margin: 0 auto; padding: 14px 0 28px; font-size: 12px; color: #7c858d; }
@media (max-width: 1210px) { main, footer { margin-left: 24px; margin-right: 24px; } }
@media (max-width: 720px) {
  .topbar { padding: 12px 16px; gap: 10px; }
  .brand { font-size: 17px; }
  nav { gap: 12px; font-size: 12px; }
  main { padding-top: 24px; }
  main, footer { margin-left: 16px; margin-right: 16px; }
  h1 { font-size: 23px; }
  .inputs { grid-template-columns: 1fr; gap: 24px; }
  textarea { min-height: 165px; }
  .inputs .hint { min-height: auto; }
  .options { gap: 10px; margin-top: 12px; }
  .results-head { gap: 10px; }
  #summary { flex-basis: calc(100% - 90px); }
  .results-head button { margin-top: 5px; }
  .filter-line { flex-wrap: wrap; gap: 5px; }
}

/* Keep the first screen about the user's two inputs, with details on demand. */
:root { background: #f7f7f5; color: #272b2d; }
main { max-width: 1080px; padding-top: 40px; }
.page-heading { display: flex; align-items: flex-start; justify-content: space-between; gap: 24px; }
h1 { font-size: 28px; letter-spacing: 0; }
.intro { max-width: 730px; }
.privacy { margin-bottom: 28px; }
.input-panel { padding: 22px; background: #fff; border: 1px solid #d9dddf; border-radius: 6px; }
.input-action { display: flex; gap: 8px; margin: 18px 0 12px; flex-wrap: wrap; }
.inputs .hint { min-height: 0; }
.inputs details { margin-top: 16px; font-size: 13px; }
.inputs details .options { margin-top: 12px; }
.inputs textarea { min-height: 125px; margin-top: 10px; }
.inputs details summary { color: #55616b; }
.list-preview { overflow: auto; max-height: 200px; margin-top: 12px; border: 1px solid #e0e3e5; }
.list-preview table { font-size: 12px; }
.list-preview td { min-width: 90px; color: #343c42; max-width: 200px; white-space: pre-wrap; overflow-wrap: anywhere; }
.list-preview td:first-child { width: auto; }
.list-preview th, .list-preview td { padding: 7px 9px; }
#sheet-label { display: flex; align-items: center; gap: 10px; font-size: 12px; margin: 12px 0; }
#column { max-width: 220px; }
#results { margin-top: 30px; }
.run-line { margin-bottom: 20px; }
.run-line .primary { padding: 8px 24px; }
.help { margin-top: 28px; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
@media (max-width: 720px) { .page-heading { flex-direction: column; gap: 8px; } main { padding-top: 24px; } .input-panel { padding: 18px; } .inputs { gap: 16px; } }