:root {
  --fg: #1d2330; --muted: #6b7280; --line: #e5e7eb; --bg: #f7f7f5; --card: #fff;
  --accent: #2f5bea; --accent-soft: #e8eefe; --ok: #15803d; --warn: #b45309; --bad: #b91c1c;
}
* { box-sizing: border-box; }
body { margin: 0; font: 15px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; color: var(--fg); background: var(--bg); }
main { max-width: 1180px; margin: 0 auto; padding: 24px; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
h1 { font-size: 26px; margin: 0 0 4px; }
h2 { font-size: 19px; margin: 32px 0 10px; }
h3 { font-size: 15px; margin: 16px 0 6px; }
code { background: #f0f0ee; padding: 1px 5px; border-radius: 4px; font-size: 13px; }
.topbar { background: var(--fg); padding: 12px 24px; }
.brand { color: #fff; font-weight: 700; font-size: 18px; }
.topbar { display: flex; align-items: baseline; gap: 24px; }
.toplink { color: #d1d5db; font-size: 14px; }
.toplink:hover { color: #fff; }
.brand span { color: #9ca3af; font-weight: 400; font-size: 14px; margin-left: 6px; }
.muted { color: var(--muted); }
.small { font-size: 13px; }
.ok { color: var(--ok); } .warn { color: var(--warn); }
.r { text-align: right; } .c { text-align: center; }
.row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.row-between { display: flex; justify-content: space-between; align-items: flex-start; gap: 16px; flex-wrap: wrap; margin-bottom: 16px; }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
@media (max-width: 800px) { .grid2 { grid-template-columns: 1fr; } }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 16px 18px; margin: 12px 0; }

table { width: 100%; border-collapse: collapse; background: var(--card); border: 1px solid var(--line); border-radius: 8px; overflow: hidden; }
th, td { padding: 9px 12px; border-bottom: 1px solid var(--line); vertical-align: top; text-align: left; }
th { font-size: 12px; text-transform: uppercase; letter-spacing: .03em; color: var(--muted); background: #fafaf9; font-weight: 600; }
table.compact th, table.compact td { padding: 6px 10px; }
tr.hl td { background: var(--accent-soft); font-weight: 600; }
tr.err td { background: #fff7ed; }

.btn { display: inline-block; background: var(--accent); color: #fff; border: 0; border-radius: 7px; padding: 8px 14px; font: inherit; font-weight: 600; cursor: pointer; text-decoration: none !important; }
.btn.secondary { background: #fff; color: var(--fg); border: 1px solid var(--line); }
.btn.danger { background: #fff; color: var(--bad); border: 1px solid #fecaca; }
.btn.small { padding: 5px 10px; font-size: 13px; }
.btn:disabled { opacity: .5; cursor: not-allowed; }

.form label { display: block; margin: 10px 0; font-weight: 600; font-size: 14px; }
.form label .muted { font-weight: 400; }
input, textarea, select { width: 100%; font: inherit; padding: 8px 10px; border: 1px solid #d1d5db; border-radius: 7px; background: #fff; margin-top: 4px; font-weight: 400; }
.row select, .toolbar select { width: auto; margin: 0; }
textarea { font-family: ui-monospace, monospace; font-size: 13px; }
.checks { display: flex; gap: 16px; flex-wrap: wrap; }
.form label.check { display: flex; align-items: center; gap: 6px; font-weight: 400; margin: 4px 0; }
.check input { width: auto; margin: 0; }
.danger-zone { margin-top: 40px; }
.actions { margin-top: 12px; }
.actions form { margin: 0; }
.compare-form { margin-top: 12px; }
pre.facts { white-space: pre-wrap; font: 13px/1.5 ui-monospace, monospace; background: #fafaf9; padding: 10px; border-radius: 6px; margin: 0; }
.answer-text { white-space: pre-wrap; font-size: 14px; }
progress { width: 260px; vertical-align: middle; }

.status { font-size: 12px; font-weight: 700; text-transform: uppercase; padding: 2px 8px; border-radius: 99px; background: #eee; }
.status.done { background: #dcfce7; color: var(--ok); }
.status.running, .status.queued { background: var(--accent-soft); color: var(--accent); }
.status.failed, .status.interrupted { background: #fee2e2; color: var(--bad); }
.verdict { font-size: 11px; font-weight: 700; text-transform: uppercase; }
.verdict.correct { color: var(--ok); } .verdict.incorrect { color: var(--bad); } .verdict.unverifiable { color: var(--muted); }

.tiles { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 12px; margin: 18px 0; }
.tile { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 14px 16px; }
.tile .label { font-size: 12px; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); font-weight: 600; }
.tile .value { font-size: 30px; font-weight: 700; margin: 4px 0 2px; }
.tile .value .before { color: var(--muted); font-weight: 500; font-size: 22px; }
.tile .help { font-size: 12px; color: var(--muted); }
.delta { font-weight: 700; font-size: 14px; }
.delta.up { color: var(--ok); } .delta.down { color: var(--bad); }

/* ---- report ---- */
.toolbar { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; margin-bottom: 16px; }
.toolbar form { margin: 0; }
.paper { background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 40px 48px; }
.report-head { border-bottom: 3px solid var(--accent); padding-bottom: 16px; margin-bottom: 8px; }
.eyebrow { text-transform: uppercase; letter-spacing: .1em; font-size: 12px; font-weight: 700; color: var(--accent); }
.summary { font-size: 16px; line-height: 1.65; }
form.inline { display: inline; }
table.bars { border: 0; }
table.bars td { border: 0; padding: 5px 8px; }
table.bars .name { width: 34%; }
.barcell { width: 46%; }
.bar { height: 16px; background: #c7d2fe; border-radius: 4px; min-width: 2px; }
tr.hl .bar { background: var(--accent); }
tr.hl td { background: transparent; }
.qtable td.heat { background: color-mix(in srgb, var(--accent) calc(var(--h) * 35%), #fff); }

@media print {
  @page { size: A4; margin: 14mm; }
  body { background: #fff; font-size: 12px; }
  .no-print, .topbar { display: none !important; }
  main { padding: 0; max-width: none; }
  .paper { border: 0; padding: 0; }
  .page-break { break-before: page; }
  section, tr, .tile { break-inside: avoid; }
  * { -webkit-print-color-adjust: exact; print-color-adjust: exact; }
}

.alert { border-color: #fecaca; background: #fef2f2; color: var(--bad); }
.notice { border-color: #c7d2fe; background: var(--accent-soft); }
.estimate { background: #fafaf9; border: 1px solid var(--line); border-radius: 7px; padding: 8px 12px; margin: 10px 0; }
details.internal summary { cursor: pointer; }
details.internal table { margin-top: 10px; max-width: 420px; }
pre.prompt { white-space: pre-wrap; font: 13px/1.5 ui-monospace, monospace; background: var(--card); border: 1px solid var(--line); border-radius: 8px; padding: 14px 16px; max-height: 520px; overflow: auto; }
.checks-list { list-style: none; padding-left: 0; }