:root {
  --bg: #f4f6f9;
  --card: #ffffff;
  --text: #1c2430;
  --muted: #5d6878;
  --line: #dde2ea;
  --brand: #0b5cad;
  --brand-ink: #ffffff;
  --brand-soft: #e7f0fb;
  --ok: #157347;
  --ok-soft: #e6f4ec;
  --err: #b42318;
  --err-soft: #fdecea;
  --warn: #9a6700;
  --warn-soft: #fff6dc;
  --info-soft: #eef1f5;
  --code-bg: #f7f8fa;
  --radius: 12px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #11151b;
    --card: #1a2029;
    --text: #e6eaf0;
    --muted: #9aa5b5;
    --line: #2c3542;
    --brand: #5aa2ec;
    --brand-ink: #0b1420;
    --brand-soft: #1b2b3f;
    --ok: #5fcf92;
    --ok-soft: #16301f;
    --err: #ff8a80;
    --err-soft: #3a1b1a;
    --warn: #f0c35a;
    --warn-soft: #362c12;
    --info-soft: #222a35;
    --code-bg: #141920;
  }
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
.wrap { max-width: 980px; margin: 0 auto; padding: 0 16px; }

.top { background: var(--card); border-bottom: 1px solid var(--line); padding: 24px 0 18px; margin-bottom: 20px; }
.top h1 { margin: 0 0 4px; font-size: 24px; }
.sub { margin: 0; color: var(--muted); }
.privacy { margin: 10px 0 0; display: inline-block; background: var(--ok-soft); color: var(--ok); padding: 6px 12px; border-radius: 8px; font-size: 13px; font-weight: 500; }

.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; margin-bottom: 16px; }
.card h2 { margin: 0 0 14px; font-size: 18px; display: flex; align-items: center; gap: 10px; }
.num { display: inline-grid; place-items: center; width: 28px; height: 28px; border-radius: 50%; background: var(--brand); color: var(--brand-ink); font-size: 14px; }

.formats { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 10px; margin-bottom: 14px; }
.fmt { text-align: left; border: 2px solid var(--line); background: var(--card); color: var(--text); border-radius: 10px; padding: 12px 14px; cursor: pointer; font: inherit; }
.fmt:hover { border-color: var(--brand); }
.fmt[aria-checked="true"] { border-color: var(--brand); background: var(--brand-soft); }
.fmt b { display: block; font-size: 15px; }
.fmt span { display: block; color: var(--muted); font-size: 13px; margin-top: 2px; }

.row { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 14px; margin: 12px 0; }
.btn { font: inherit; font-weight: 600; border-radius: 8px; padding: 9px 16px; cursor: pointer; border: 1px solid transparent; }
.btn.primary { background: var(--brand); color: var(--brand-ink); }
.btn.primary:disabled { opacity: .45; cursor: not-allowed; }
.btn.secondary { background: var(--card); color: var(--brand); border-color: var(--brand); }
.btn.big { padding: 12px 22px; font-size: 16px; }
.btn:focus-visible, .fmt:focus-visible, .drop:focus-visible { outline: 3px solid var(--brand); outline-offset: 2px; }
.muted { color: var(--muted); }
.small { font-size: 13px; }

.drop { display: flex; flex-direction: column; align-items: center; gap: 4px; border: 2px dashed var(--line); border-radius: 12px; padding: 30px 16px; cursor: pointer; text-align: center; transition: .15s; }
.drop:hover, .drop.over { border-color: var(--brand); background: var(--brand-soft); }
.drop-icon { font-size: 34px; }
.drop-main { font-weight: 600; }
.drop-sub { color: var(--muted); font-size: 13px; word-break: break-all; }

.adv { margin-top: 12px; }
.adv summary { cursor: pointer; color: var(--muted); font-size: 14px; }
.field { display: flex; flex-direction: column; gap: 4px; margin-top: 10px; max-width: 360px; font-size: 14px; }
.field input { font: inherit; padding: 8px 10px; border: 1px solid var(--line); border-radius: 8px; background: var(--card); color: var(--text); }

.banner { border-radius: 10px; padding: 12px 14px; font-weight: 600; margin-bottom: 12px; }
.banner.ok { background: var(--ok-soft); color: var(--ok); }
.banner.err { background: var(--err-soft); color: var(--err); }
.banner.warn { background: var(--warn-soft); color: var(--warn); }
.banner small { display: block; font-weight: 400; margin-top: 2px; }

.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 10px; }
.stat { border: 1px solid var(--line); border-radius: 10px; padding: 10px 12px; }
.stat .k { color: var(--muted); font-size: 13px; }
.stat .v { font-size: 20px; font-weight: 700; font-variant-numeric: tabular-nums; }

.tabs { display: flex; gap: 6px; margin: 16px 0 8px; flex-wrap: wrap; }
.tab { font: inherit; border: 1px solid var(--line); background: var(--card); color: var(--text); border-radius: 999px; padding: 5px 12px; cursor: pointer; font-size: 14px; }
.tab.active { background: var(--text); color: var(--card); border-color: var(--text); }

.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 10px; max-height: 420px; overflow-y: auto; margin-top: 8px; }
table { border-collapse: collapse; width: 100%; font-size: 13px; }
th, td { padding: 7px 10px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
th { position: sticky; top: 0; background: var(--card); font-weight: 600; white-space: nowrap; }
table.data td { white-space: nowrap; }
tr.lv-error td:last-child { color: var(--err); }
tr.lv-warning td:last-child { color: var(--warn); }
tr.sub-row td { color: var(--muted); }

.xml { background: var(--code-bg); border: 1px solid var(--line); border-radius: 10px; padding: 12px; overflow: auto; max-height: 420px; font-size: 12px; margin-top: 8px; }

.help ol { margin: 0 0 8px; padding-left: 20px; }
.help li { margin: 4px 0; }

.toast { position: fixed; left: 50%; bottom: 20px; transform: translateX(-50%) translateY(20px); background: var(--text); color: var(--card); padding: 10px 16px; border-radius: 8px; opacity: 0; pointer-events: none; transition: .2s; max-width: calc(100% - 32px); font-size: 14px; }
.toast.show { opacity: 1; transform: translateX(-50%); }

@media (max-width: 560px) {
  .top h1 { font-size: 20px; }
  .btn.big { width: 100%; }
}