:root {
  --bg: #f5f6f8; --panel: #fff; --ink: #1c2330; --muted: #5d6879; --line: #dde1e8;
  --brand: #1d4ed8; --brand-ink: #fff; --ok: #137a3c; --warn: #9a6200; --err: #b42318; --info: #475569;
  --radius: 8px; --gap: 1rem;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #11151c; --panel: #1a202b; --ink: #e6e9ef; --muted: #9aa5b8; --line: #2c3544; --brand: #6d9bff; --brand-ink: #0b1220; }
}
* { box-sizing: border-box; }
html { font-size: 16px; }
body { margin: 0; font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; background: var(--bg); color: var(--ink); line-height: 1.45; }
a { color: var(--brand); }
h1 { font-size: 1.5rem; margin: 0 0 .75rem; }
h2 { font-size: 1.15rem; margin: 1.5rem 0 .5rem; }
h3 { font-size: 1rem; margin: 1rem 0 .4rem; }
code { background: rgba(127,127,127,.15); padding: 0 .25em; border-radius: 4px; }
.container { max-width: 1200px; margin: 0 auto; padding: 1rem 16px 3rem; }
.footer { text-align: center; color: var(--muted); font-size: .85rem; padding: 1.5rem 16px; }
.muted { color: var(--muted); }
.small { font-size: .85rem; }
.nowrap { white-space: nowrap; }
.right { text-align: right; }

.topbar { display: flex; align-items: center; flex-wrap: wrap; gap: .5rem 1rem; background: var(--panel); border-bottom: 1px solid var(--line); padding: .6rem 16px; position: sticky; top: 0; z-index: 5; }
.brand { font-weight: 700; text-decoration: none; color: var(--ink); font-size: 1.1rem; }
.nav { display: flex; align-items: center; gap: .25rem 1rem; margin-left: auto; flex-wrap: wrap; }
.nav a { text-decoration: none; padding: .35rem .6rem; border-radius: 6px; color: var(--ink); }
.nav a.active, .nav a:hover { background: rgba(127,127,127,.14); }
.nav .who { color: var(--muted); font-size: .9rem; }
.nav-toggle, .nav-burger { display: none; }
@media (max-width: 720px) {
  .nav-burger { display: block; margin-left: auto; font-size: 1.4rem; cursor: pointer; padding: 0 .4rem; }
  .nav { display: none; width: 100%; flex-direction: column; align-items: stretch; margin-left: 0; }
  .nav-toggle:checked ~ .nav { display: flex; }
}

.card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 1rem; margin-bottom: var(--gap); }
.card.narrow { max-width: 420px; margin: 3rem auto; }
.grid { display: grid; gap: var(--gap); }
.grid.cols-2 { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.grid.metrics { grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); }
.metric { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: .7rem .8rem; }
.metric .v { font-size: 1.5rem; font-weight: 650; font-variant-numeric: tabular-nums; }
.metric .l { color: var(--muted); font-size: .85rem; }
.metric .h { color: var(--muted); font-size: .75rem; }
.metric.valid .v { color: var(--ok); } .metric.warning .v { color: var(--warn); } .metric.invalid .v { color: var(--err); }
.section-note { color: var(--muted); font-size: .9rem; margin: -.25rem 0 .6rem; }

.alert { padding: .65rem .9rem; border-radius: var(--radius); margin-bottom: var(--gap); border: 1px solid var(--line); }
.alert.ok { border-color: var(--ok); background: rgba(19,122,60,.1); }
.alert.err { border-color: var(--err); background: rgba(180,35,24,.1); }
.alert.warn { border-color: var(--warn); background: rgba(154,98,0,.1); }

label { display: block; margin: .6rem 0 .2rem; font-weight: 600; font-size: .92rem; }
input[type=text], input[type=password], input[type=number], input[type=search], input[type=file], select, textarea {
  width: 100%; max-width: 100%; padding: .5rem .6rem; border: 1px solid var(--line); border-radius: 6px; background: var(--panel); color: var(--ink); font: inherit;
}
textarea { min-height: 4.5rem; }
input[type=checkbox], input[type=radio] { width: auto; margin-right: .4rem; }
.check { font-weight: 400; display: flex; align-items: flex-start; gap: .3rem; margin: .4rem 0; }
.row { display: flex; flex-wrap: wrap; gap: .75rem 1rem; align-items: flex-end; }
.row > * { flex: 1 1 160px; min-width: 0; }
.row > .auto { flex: 0 0 auto; }
form.inline { display: inline; margin: 0; }
.actions { display: flex; flex-wrap: wrap; gap: .5rem; margin: .75rem 0; }

.btn, button.link { font: inherit; cursor: pointer; }
.btn { display: inline-block; padding: .5rem .9rem; border-radius: 6px; border: 1px solid var(--line); background: var(--panel); color: var(--ink); text-decoration: none; }
.btn:hover { border-color: var(--brand); }
.btn.primary { background: var(--brand); color: var(--brand-ink); border-color: var(--brand); }
.btn.danger { background: var(--err); color: #fff; border-color: var(--err); }
.btn.small { padding: .25rem .55rem; font-size: .85rem; }
.btn[disabled], .btn.disabled { opacity: .5; pointer-events: none; }
button.link { background: none; border: 0; color: var(--brand); padding: .35rem .6rem; }

.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); background: var(--panel); margin-bottom: var(--gap); }
table { width: 100%; border-collapse: collapse; font-size: .92rem; }
th, td { text-align: left; padding: .45rem .6rem; border-bottom: 1px solid var(--line); vertical-align: top; }
th { background: rgba(127,127,127,.08); font-weight: 650; white-space: nowrap; }
tr:last-child td { border-bottom: 0; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }
td.wrap { word-break: break-word; min-width: 12rem; }
tr.selected td { background: rgba(29,78,216,.08); }

.badge { display: inline-block; padding: .05rem .5rem; border-radius: 999px; font-size: .78rem; font-weight: 650; border: 1px solid currentColor; white-space: nowrap; }
.b-valid { color: var(--ok); } .b-warning { color: var(--warn); } .b-invalid { color: var(--err); }
.b-duplicate { color: #6d28d9; } .b-quarantined { color: #b45309; } .b-excluded { color: var(--info); } .b-neutral { color: var(--muted); }

progress { width: 100%; height: 1rem; }
.pager { display: flex; flex-wrap: wrap; gap: .5rem; align-items: center; margin: .5rem 0 1rem; }
.kv { display: grid; grid-template-columns: max-content 1fr; gap: .25rem 1rem; }
.kv dt { color: var(--muted); } .kv dd { margin: 0; word-break: break-word; }
.tabs { display: flex; flex-wrap: wrap; gap: .25rem; margin: .5rem 0 1rem; }
.tabs a { padding: .35rem .7rem; border: 1px solid var(--line); border-radius: 6px; text-decoration: none; background: var(--panel); color: var(--ink); }
.tabs a.active { background: var(--brand); color: var(--brand-ink); border-color: var(--brand); }
.inspector { border-left: 4px solid var(--brand); }
.diff-old { color: var(--muted); text-decoration: line-through; }
dialog { border: 1px solid var(--line); border-radius: var(--radius); background: var(--panel); color: var(--ink); max-width: min(520px, 94vw); }
.bulkbar { position: sticky; bottom: 0; background: var(--panel); border-top: 1px solid var(--line); padding: .6rem 0; }
.hidden { display: none; }

.btn.big { padding: .75rem 1.4rem; font-size: 1.05rem; }
.phone { font-size: 1.8rem; font-weight: 650; letter-spacing: .03em; margin: 0 0 .5rem; font-variant-numeric: tabular-nums; }
code.big { font-size: 1.25rem; padding: .25rem .6rem; user-select: all; word-break: break-all; }
label.outcome { padding: .35rem .5rem; border: 1px solid var(--line); border-radius: 6px; margin: .25rem 0; cursor: pointer; align-items: center; }
label.outcome:hover { border-color: var(--brand); }
td.bar { min-width: 8rem; }
input.w-5 { width: 5rem; } input.w-6 { width: 6rem; }

details.narrow { margin: .75rem 0; }
details.narrow > summary { cursor: pointer; font-weight: 600; padding: .35rem 0; }
table.steps { margin-top: .5rem; width: auto; }
table.steps td { padding: .15rem 1rem .15rem 0; border: 0; }