:root {
  --bg: #f6f7f9; --surface: #ffffff; --surface-2: #f0f2f5; --text: #1a1d23; --muted: #5d6573; --border: #dde1e7;
  --accent: #2457d6; --accent-soft: #e6edfc; --ok: #1d7a46; --ok-soft: #e3f3ea; --warn: #9a6200; --warn-soft: #fdf1dc;
  --bad: #b42318; --bad-soft: #fde7e5; --info-soft: #e8f1fb;
  --radius: 10px; --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, monospace;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111318; --surface: #181b22; --surface-2: #20242d; --text: #e7e9ee; --muted: #9aa2b1; --border: #2c313c;
    --accent: #7aa2ff; --accent-soft: #1d2a4a; --ok: #5cc98a; --ok-soft: #15301f; --warn: #f0b44c; --warn-soft: #33270f;
    --bad: #ff8a80; --bad-soft: #3a1714; --info-soft: #172436;
  }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font: 14px/1.45 var(--font); }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
code, .mono { font-family: var(--mono); font-size: 12.5px; }
h1 { font-size: 22px; margin: 0 0 4px; } h2 { font-size: 16px; margin: 0 0 10px; } h3 { font-size: 14px; margin: 0 0 6px; }
.muted { color: var(--muted); }
.shell { display: grid; grid-template-columns: 220px 1fr; min-height: 100vh; }
.sidebar { background: var(--surface); border-right: 1px solid var(--border); padding: 16px 12px; display: flex; flex-direction: column; gap: 8px; position: sticky; top: 0; height: 100vh; }
.brand { display: flex; align-items: center; gap: 8px; font-weight: 650; color: var(--text); padding: 4px 8px 12px; }
.brand-mark { width: 18px; height: 18px; border-radius: 5px; background: var(--accent); display: inline-block; }
.nav-section { font-size: 11px; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); padding: 12px 8px 4px; }
.nav-item { display: block; padding: 6px 8px; border-radius: 7px; color: var(--text); }
.nav-item:hover { background: var(--surface-2); text-decoration: none; }
.nav-item.is-active { background: var(--accent-soft); color: var(--accent); font-weight: 600; }
.sidebar-foot { margin-top: auto; border-top: 1px solid var(--border); padding: 10px 8px 0; display: flex; justify-content: space-between; align-items: center; gap: 8px; }
.who { font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.main { padding: 20px 24px 48px; min-width: 0; }
.page-head { margin-bottom: 16px; display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 8px; }
.page-head p { margin: 2px 0 0; flex-basis: 100%; }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 14px 16px; margin-bottom: 14px; min-width: 0; }
.grid { display: grid; gap: 14px; }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.tile { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 12px 14px; }
.tile-label { color: var(--muted); font-size: 12px; }
.tile-value { font-size: 24px; font-weight: 650; font-variant-numeric: tabular-nums; margin-top: 2px; }
.tile-sub { color: var(--muted); font-size: 12px; margin-top: 2px; }
.table { width: 100%; border-collapse: collapse; font-variant-numeric: tabular-nums; }
.table th { text-align: left; font-weight: 600; color: var(--muted); font-size: 12px; border-bottom: 1px solid var(--border); padding: 6px 8px; white-space: nowrap; }
.table td { border-bottom: 1px solid var(--border); padding: 7px 8px; vertical-align: top; }
.table tr:last-child td { border-bottom: 0; }
.table .num { text-align: right; }
.table-wrap { overflow-x: auto; }
.pill { display: inline-block; padding: 1px 8px; border-radius: 999px; font-size: 12px; font-weight: 600; white-space: nowrap; background: var(--surface-2); color: var(--muted); }
.pill-ok { background: var(--ok-soft); color: var(--ok); } .pill-warn { background: var(--warn-soft); color: var(--warn); } .pill-bad { background: var(--bad-soft); color: var(--bad); }
.banner { border-radius: var(--radius); padding: 9px 12px; margin-bottom: 10px; border: 1px solid var(--border); background: var(--info-soft); }
.banner-warn { background: var(--warn-soft); border-color: transparent; } .banner-bad { background: var(--bad-soft); border-color: transparent; }
.button { display: inline-flex; align-items: center; gap: 6px; padding: 7px 12px; border-radius: 8px; border: 1px solid var(--border); background: var(--surface); color: var(--text); font: inherit; cursor: pointer; }
.button:hover { background: var(--surface-2); text-decoration: none; }
.button.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.button.danger { color: var(--bad); }
.button[disabled] { opacity: .5; cursor: not-allowed; }
.link-button { background: none; border: 0; color: var(--accent); cursor: pointer; font: inherit; padding: 0; }
.link-button.danger { color: var(--bad); }
input, select, textarea { font: inherit; color: var(--text); background: var(--surface); border: 1px solid var(--border); border-radius: 7px; padding: 6px 8px; }
textarea { width: 100%; }
.inline-form { display: flex; flex-wrap: wrap; gap: 10px; align-items: end; }
.inline-form label { display: flex; flex-direction: column; gap: 3px; font-size: 12px; color: var(--muted); }
.center-card { max-width: 440px; margin: 12vh auto; background: var(--surface); border: 1px solid var(--border); border-radius: 14px; padding: 28px; display: flex; flex-direction: column; gap: 14px; }
.center-card h1 { display: flex; gap: 10px; align-items: center; }
.dev-login form { margin: 6px 0; } .dev-login .button { width: 100%; justify-content: flex-start; }
.roles dt { font-weight: 600; margin-top: 8px; } .roles dd { margin: 2px 0 0; color: var(--muted); }
.spark { width: 120px; height: 28px; display: block; }
.why { font-size: 12.5px; color: var(--muted); }
.kv { display: grid; grid-template-columns: max-content 1fr; gap: 4px 14px; margin: 0; }
.kv dt { color: var(--muted); } .kv dd { margin: 0; }
.stale { color: var(--warn); font-weight: 600; }
@media (max-width: 900px) {
  .shell { grid-template-columns: 1fr; }
  .sidebar { position: static; height: auto; flex-direction: row; flex-wrap: wrap; align-items: center; }
  .sidebar nav { display: flex; flex-wrap: wrap; gap: 2px; } .nav-section { display: none; } .sidebar-foot { margin: 0; border: 0; padding: 0; }
  .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr 1fr; }
  .main { padding: 16px; }
}
.report-frame { width: 100%; height: calc(100vh - 150px); border: 1px solid var(--border); border-radius: var(--radius); background: #fff; }
.sr-only { position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0; overflow: hidden; clip-path: inset(50%); white-space: nowrap; border: 0; }

.toolbar { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chip { padding: 2px 10px; border-radius: 999px; border: 1px solid var(--border, #ccc); font-size: 13px; text-decoration: none; color: inherit; }
.chip[aria-current="true"] { background: var(--surface-2); font-weight: 600; }
.chip .count { color: var(--muted); }
tr.is-inactive { opacity: .7; }
dialog#confirm-dialog { max-width: 28rem; border-radius: 10px; }
.log { list-style: none; padding: 0; } .log li { padding: 4px 0; border-bottom: 1px solid var(--border, #eee); }
/* State tones (design §5.3): a shape as well as a colour, so state is never colour alone */
.pill[class*="tone-"]::before { display: inline-block; width: 1em; margin-right: 4px; text-align: center; }
.tone-ok::before { content: "●"; } .tone-neutral::before { content: "○"; } .tone-info::before { content: "◆"; }
.tone-warn::before { content: "▲"; } .tone-bad::before { content: "■"; } .tone-unknown::before { content: "?"; }
.tone-info { background: var(--surface-2); color: var(--accent); }