:root {
  --bg: #f5f6f8; --card: #ffffff; --ink: #11151c; --muted: #6a7280; --line: #e3e6eb;
  --brand: #11151c; --brand-ink: #ffffff; --accent: #c6f135; --danger: #c62828; --danger-bg: #fdecec;
  --ok: #1b7f3b; --ok-bg: #e7f6ec; --warn: #9a6200; --warn-bg: #fff4dc;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0e1116; --card: #171b22; --ink: #eef1f5; --muted: #98a1b0; --line: #2a303a;
    --brand: #c6f135; --brand-ink: #11151c; --accent: #c6f135; --danger: #ff8a80; --danger-bg: #3a1c1c;
    --ok: #6fdc8c; --ok-bg: #173324; --warn: #ffcc66; --warn-bg: #3a2d12;
  }
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--ink); font: 15px/1.45 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; }
button, input { font: inherit; color: inherit; }
.wrap { max-width: 980px; margin: 0 auto; padding: 16px; }
.center { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 16px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 18px; }
.card + .card { margin-top: 12px; }
.narrow { width: 100%; max-width: 400px; }
h1 { font-size: 22px; margin: 0 0 4px; }
h2 { font-size: 17px; margin: 0 0 10px; }
h3 { font-size: 15px; margin: 14px 0 6px; }
p { margin: 6px 0; }
.muted { color: var(--muted); }
.small { font-size: 13px; }
label { display: block; font-size: 13px; color: var(--muted); margin: 12px 0 4px; }
input[type=text], input[type=email], input[type=password], input[type=search] {
  width: 100%; padding: 10px 12px; border: 1px solid var(--line); border-radius: 10px; background: var(--bg);
}
input:focus-visible, button:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.btn { border: 1px solid var(--line); background: var(--card); padding: 8px 14px; border-radius: 10px; cursor: pointer; }
.btn:hover { border-color: var(--muted); }
.btn.primary { background: var(--brand); color: var(--brand-ink); border-color: var(--brand); font-weight: 600; }
.btn.danger { color: var(--danger); border-color: var(--danger); }
.btn:disabled { opacity: .5; cursor: default; }
.btn.block { width: 100%; margin-top: 16px; padding: 11px; }
.row { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.row.between { justify-content: space-between; }
.msg { margin: 12px 0 0; padding: 10px 12px; border-radius: 10px; font-size: 14px; }
.msg.err { background: var(--danger-bg); color: var(--danger); }
.msg.ok { background: var(--ok-bg); color: var(--ok); }
header.top { position: sticky; top: 0; z-index: 5; background: var(--bg); border-bottom: 1px solid var(--line); }
header.top .wrap { display: flex; gap: 12px; align-items: center; justify-content: space-between; flex-wrap: wrap; padding-top: 10px; padding-bottom: 10px; }
.brand { font-weight: 800; letter-spacing: .5px; }
nav { display: flex; gap: 4px; flex-wrap: wrap; }
nav button { border: 0; background: transparent; padding: 8px 12px; border-radius: 9px; cursor: pointer; color: var(--muted); font-weight: 600; }
nav button[aria-current=page] { background: var(--card); color: var(--ink); border: 1px solid var(--line); }
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 10px; }
.stat { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 14px; }
.stat b { display: block; font-size: 26px; line-height: 1.1; }
.stat span { color: var(--muted); font-size: 13px; }
.pill { display: inline-block; padding: 2px 9px; border-radius: 99px; font-size: 12px; font-weight: 600; background: var(--bg); border: 1px solid var(--line); }
.pill.bad { background: var(--danger-bg); color: var(--danger); border-color: transparent; }
.pill.ok { background: var(--ok-bg); color: var(--ok); border-color: transparent; }
.pill.warn { background: var(--warn-bg); color: var(--warn); border-color: transparent; }
.list > .item { padding: 12px 0; border-top: 1px solid var(--line); }
.list > .item:first-child { border-top: 0; }
.reasons { margin: 8px 0; padding-left: 18px; }
.reasons li { margin: 2px 0; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 8px 6px; border-top: 1px solid var(--line); vertical-align: top; }
th { color: var(--muted); font-weight: 600; font-size: 12px; border-top: 0; }
.scroll { overflow-x: auto; }
.qr { background: #fff; padding: 8px; border-radius: 10px; display: inline-block; }
.qr img { width: 190px; height: 190px; display: block; }
code.secret { word-break: break-all; font-size: 13px; background: var(--bg); padding: 4px 6px; border-radius: 6px; }
a { color: inherit; }
.mt { margin-top: 12px; }