:root {
  --bg: #f4f6f9; --surface: #fff; --text: #1b2533; --muted: #5b6878; --line: #e2e7ee;
  --brand: #0b4f8a; --brand-text: #fff;
  --ok-bg: #e2f5e9; --ok: #17603a; --warn-bg: #fdf1d8; --warn: #7a5200; --bad-bg: #fde5e3; --bad: #9c231b;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #11161d; --surface: #1a212b; --text: #e7ecf2; --muted: #9aa7b6; --line: #2b3542;
    --brand: #5aa7e6; --brand-text: #0c1620;
    --ok-bg: #173a27; --ok: #8fdcae; --warn-bg: #43330e; --warn: #f1cf7c; --bad-bg: #4a1c18; --bad: #f6a59e;
  }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font: 16px/1.5 system-ui, -apple-system, "Segoe UI", sans-serif; }
a { color: var(--brand); }
h1 { font-size: 1.6rem; margin: 0 0 12px; }
h2 { font-size: 1.1rem; margin: 0 0 10px; }
h3 { font-size: 1rem; margin: 22px 0 8px; }
small { color: var(--muted); font-weight: 400; font-size: .85rem; }
code { background: var(--bg); padding: 1px 5px; border-radius: 4px; font-size: .9em; }
.muted { color: var(--muted); font-size: .92rem; }

.top { background: var(--surface); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 2; }
.top-inner { max-width: 1180px; margin: auto; padding: 10px 16px; display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }
.brand { font-weight: 700; text-decoration: none; color: var(--text); }
nav { display: flex; gap: 4px; flex-wrap: wrap; flex: 1; }
nav a { padding: 6px 10px; border-radius: 6px; text-decoration: none; color: var(--muted); }
nav a:hover { background: var(--bg); }
nav a.active { background: var(--brand); color: var(--brand-text); }

main { max-width: 1180px; margin: auto; padding: 22px 16px 60px; }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: 10px; padding: 18px; margin: 0 0 16px; }
.grid { display: grid; gap: 16px; margin-bottom: 16px; }
.grid .card { margin: 0; }
.grid.three { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.grid.two { grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); align-items: start; }
.grid.stats { grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); }
.stat span { color: var(--muted); font-size: .88rem; }
.stat strong { display: block; font-size: 1.9rem; line-height: 1.2; font-variant-numeric: tabular-nums; }

.pill { display: inline-block; padding: 2px 10px; border-radius: 999px; font-size: .82rem; font-weight: 600;
  background: var(--bg); color: var(--muted); border: 1px solid var(--line); margin-right: 4px; }
.pill.ok { background: var(--ok-bg); color: var(--ok); border-color: transparent; }
.pill.warn { background: var(--warn-bg); color: var(--warn); border-color: transparent; }
.pill.bad { background: var(--bad-bg); color: var(--bad); border-color: transparent; }

.notice { padding: 10px 14px; border-radius: 8px; margin: 0 0 14px; background: var(--ok-bg); color: var(--ok); }
.notice.warn { background: var(--warn-bg); color: var(--warn); }
.notice.bad { background: var(--bad-bg); color: var(--bad); }
.notice a { color: inherit; font-weight: 600; }
.worker { color: var(--muted); font-size: .9rem; margin: 0 0 18px; }
.worker-error { color: var(--bad); }

label { display: block; margin: 0 0 12px; font-size: .92rem; color: var(--muted); }
input, textarea, button { font: inherit; color: inherit; }
input:not([type=hidden]):not([type=file]), textarea {
  display: block; width: 100%; margin-top: 4px; padding: 8px 10px; border: 1px solid var(--line);
  border-radius: 6px; background: var(--bg); color: var(--text); }
textarea { resize: vertical; font-family: ui-monospace, Consolas, monospace; font-size: .9rem; }
button { padding: 8px 14px; border-radius: 6px; border: 1px solid var(--line); background: var(--surface); cursor: pointer; }
button:hover { border-color: var(--brand); }
button.primary { background: var(--brand); color: var(--brand-text); border-color: var(--brand); font-weight: 600; }
button.danger { color: var(--bad); border-color: var(--bad); }
button.link { border: 0; background: none; color: var(--muted); padding: 6px; }
:focus-visible { outline: 2px solid var(--brand); outline-offset: 2px; }
.actions { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; margin: 12px 0; }
.actions input[type=search] { width: auto; flex: 1; min-width: 200px; margin: 0; }

.scroll { overflow-x: auto; }
table { border-collapse: collapse; width: 100%; font-size: .92rem; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--muted); font-weight: 600; white-space: nowrap; }
td .actions { margin: 0; }
.pager { display: flex; gap: 14px; align-items: center; color: var(--muted); margin: 14px 0 0; }
.qr { display: block; margin: 12px 0; background: #fff; padding: 10px; border-radius: 8px; border: 1px solid var(--line); }
.log { background: var(--bg); padding: 12px; border-radius: 8px; overflow: auto; max-height: 70vh; font-size: .8rem; margin: 0; white-space: pre-wrap; word-break: break-word; }

body.login { min-height: 100vh; display: grid; place-items: center; padding: 16px; }
.login-card { width: 100%; max-width: 360px; }
.login-card h1 { margin-bottom: 0; }