:root {
  --bg: #f6f7f5;
  --surface: #ffffff;
  --surface-2: #eef1ee;
  --text: #17201e;
  --muted: #5b6763;
  --border: #d9dfdb;
  --brand: #0f3d3e;
  --brand-2: #1f6f6b;
  --accent: #e0a526;
  --ok: #1e7b4a;
  --warn: #9a6400;
  --bad: #b3261e;
  --info: #1d5fa8;
  --radius: 10px;
  --shadow: 0 1px 2px rgba(0, 0, 0, .06), 0 4px 16px rgba(0, 0, 0, .04);
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", monospace;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1413; --surface: #161d1b; --surface-2: #1d2624; --text: #e6ece9; --muted: #9aa8a3;
    --border: #2a3532; --brand: #7fc8c2; --brand-2: #4fa69f; --ok: #5fc48c; --warn: #e2b04a; --bad: #f08a80;
    --info: #7cb3f0; --shadow: none; color-scheme: dark;
  }
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--text); font: 15px/1.5 var(--font); }
a { color: var(--brand-2); }
button, input, select, textarea { font: inherit; color: inherit; }
.test-banner {
  position: sticky; top: 0; z-index: 20; text-align: center; padding: 6px 12px; font-size: 13px; font-weight: 600;
  background: var(--accent); color: #241a00; letter-spacing: .02em;
}
.boot { padding: 48px 16px; text-align: center; color: var(--muted); }

/* layout */
.shell { display: grid; grid-template-columns: 232px 1fr; min-height: calc(100vh - 32px); }
.nav { background: var(--surface); border-right: 1px solid var(--border); padding: 20px 12px; display: flex; flex-direction: column; gap: 4px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 17px; padding: 4px 10px 18px; color: var(--brand); }
.brand img { width: 28px; height: 28px; border-radius: 7px; }
.nav a { display: block; padding: 8px 12px; border-radius: 8px; color: var(--text); text-decoration: none; }
.nav a[aria-current="page"] { background: var(--surface-2); color: var(--brand); font-weight: 600; }
.nav a:hover { background: var(--surface-2); }
.nav .spacer { flex: 1; }
.nav .who { font-size: 13px; color: var(--muted); padding: 8px 12px; border-top: 1px solid var(--border); margin-top: 8px; word-break: break-all; }
main { padding: 28px clamp(16px, 4vw, 40px) 64px; max-width: 1160px; width: 100%; }
h1 { font-size: 24px; margin: 0 0 4px; }
h2 { font-size: 17px; margin: 28px 0 12px; }
.sub { color: var(--muted); margin: 0 0 24px; }
.row { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
.row.spread { justify-content: space-between; }
.grid { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }

/* cards and tables */
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px; box-shadow: var(--shadow); }
.stat .label { color: var(--muted); font-size: 13px; }
.stat .value { font-size: 26px; font-weight: 700; font-variant-numeric: tabular-nums; margin-top: 4px; }
.stat .hint { color: var(--muted); font-size: 12px; margin-top: 6px; }
.table-wrap { overflow-x: auto; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 10px 14px; border-bottom: 1px solid var(--border); white-space: nowrap; }
th { font-size: 12px; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); font-weight: 600; background: var(--surface-2); }
tr:last-child td { border-bottom: 0; }
tr.click { cursor: pointer; }
tr.click:hover td { background: var(--surface-2); }
td.num { text-align: right; font-variant-numeric: tabular-nums; }
.mono { font-family: var(--mono); font-size: 13px; }
.empty { padding: 28px; text-align: center; color: var(--muted); }

/* badges */
.badge { display: inline-block; padding: 2px 9px; border-radius: 999px; font-size: 12px; font-weight: 600; background: var(--surface-2); color: var(--muted); }
.badge.ok { background: color-mix(in srgb, var(--ok) 15%, transparent); color: var(--ok); }
.badge.warn { background: color-mix(in srgb, var(--warn) 18%, transparent); color: var(--warn); }
.badge.bad { background: color-mix(in srgb, var(--bad) 15%, transparent); color: var(--bad); }
.badge.info { background: color-mix(in srgb, var(--info) 15%, transparent); color: var(--info); }

/* forms */
form.stack, .stack { display: grid; gap: 14px; }
label { display: grid; gap: 6px; font-weight: 600; font-size: 14px; }
label .help { font-weight: 400; color: var(--muted); font-size: 13px; }
input, select, textarea { width: 100%; padding: 9px 11px; border: 1px solid var(--border); border-radius: 8px; background: var(--surface); }
input:focus, select:focus, textarea:focus, button:focus-visible, a:focus-visible { outline: 3px solid color-mix(in srgb, var(--brand-2) 45%, transparent); outline-offset: 1px; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 9px 16px; border-radius: 8px;
  border: 1px solid var(--brand); background: var(--brand); color: #fff; font-weight: 600; cursor: pointer; text-decoration: none; }
@media (prefers-color-scheme: dark) { .btn { color: #07201f; } }
.btn.secondary { background: transparent; color: var(--brand); }
.btn.danger { background: var(--bad); border-color: var(--bad); color: #fff; }
.btn:disabled { opacity: .55; cursor: not-allowed; }
.btn.small { padding: 5px 11px; font-size: 13px; }

/* notices */
.notice { border-radius: var(--radius); padding: 12px 14px; border: 1px solid var(--border); background: var(--surface-2); }
.notice.bad { border-color: color-mix(in srgb, var(--bad) 40%, transparent); background: color-mix(in srgb, var(--bad) 8%, var(--surface)); }
.notice.ok { border-color: color-mix(in srgb, var(--ok) 40%, transparent); background: color-mix(in srgb, var(--ok) 8%, var(--surface)); }
.notice.warn { border-color: color-mix(in srgb, var(--warn) 40%, transparent); background: color-mix(in srgb, var(--warn) 10%, var(--surface)); }
.secret { font-family: var(--mono); font-size: 13px; word-break: break-all; padding: 10px; border-radius: 8px; background: var(--surface-2); border: 1px dashed var(--border); user-select: all; }
dl.kv { display: grid; grid-template-columns: max-content 1fr; gap: 8px 20px; margin: 0; }
dl.kv dt { color: var(--muted); }
dl.kv dd { margin: 0; word-break: break-word; }
.timeline { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.timeline li { padding: 10px 12px; border-left: 3px solid var(--brand-2); background: var(--surface); border-radius: 0 8px 8px 0; }
.timeline .when { color: var(--muted); font-size: 12px; }

/* auth */
.auth { max-width: 420px; margin: 56px auto; padding: 0 16px; }
.auth .brand { justify-content: center; font-size: 22px; padding-bottom: 6px; }
.auth .switch { text-align: center; margin-top: 16px; color: var(--muted); }
.toast { position: fixed; bottom: 18px; left: 50%; transform: translateX(-50%); background: var(--text); color: var(--bg);
  padding: 10px 16px; border-radius: 8px; box-shadow: var(--shadow); z-index: 30; max-width: 90vw; }

/* mobile: navigation becomes a bottom bar */
@media (max-width: 760px) {
  .shell { grid-template-columns: 1fr; }
  .nav { position: fixed; bottom: 0; left: 0; right: 0; z-index: 10; flex-direction: row; overflow-x: auto; padding: 6px 8px calc(6px + env(safe-area-inset-bottom));
    border-right: 0; border-top: 1px solid var(--border); gap: 2px; }
  .nav .brand, .nav .spacer, .nav .who { display: none; }
  .nav a { white-space: nowrap; font-size: 13px; padding: 8px 10px; }
  main { padding-bottom: 96px; }
  th, td { padding: 9px 10px; }
}
.gap { height: 12px; }
.gap.lg { height: 16px; }
.narrow { max-width: 140px; }
.center { text-align: center; }
.chart-title { font-size: 14px; margin: 0 0 12px; color: var(--muted); font-weight: 600; }
.bars { display: grid; gap: 6px; }
.bar-row { display: grid; grid-template-columns: 92px 1fr minmax(90px, auto); gap: 10px; align-items: center; font-size: 13px; }
.bar-label { color: var(--muted); font-variant-numeric: tabular-nums; }
.bar-track { background: var(--surface-2); border-radius: 4px; height: 14px; overflow: hidden; }
.bar { display: block; height: 100%; background: var(--brand-2); border-radius: 4px; }
.bar-value { text-align: right; font-variant-numeric: tabular-nums; }