:root {
  --bg: #f6f7f9;
  --surface: #ffffff;
  --text: #1c2330;
  --muted: #5d6778;
  --border: #dde1e8;
  --accent: #2459d6;
  --accent-text: #ffffff;
  --ok: #1f7a4d;
  --warn: #9a5b00;
  --danger: #b42318;
  --chip-production: #e3f4ea;
  --chip-beta: #fdf1dc;
  --chip-internal: #e8edf8;
  --radius: 8px;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #12161d;
    --surface: #1a2029;
    --text: #e6e9ef;
    --muted: #9aa4b5;
    --border: #2c3442;
    --accent: #6b93ff;
    --accent-text: #0d1220;
    --ok: #5fcf95;
    --warn: #f0b45a;
    --danger: #ff8a7a;
    --chip-production: #173a28;
    --chip-beta: #3d2e12;
    --chip-internal: #1f2a44;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 14px/1.45 system-ui, -apple-system, "Segoe UI", sans-serif;
}

code { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 12.5px; }

.topbar {
  position: sticky;
  top: 0;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  padding: 12px 16px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

.brand { font-size: 15px; }
.tabs { display: flex; flex-wrap: wrap; gap: 4px; flex: 1; }
.tabs button { background: transparent; color: var(--muted); border-color: transparent; }
.tabs button.active { background: var(--bg); color: var(--text); border-color: var(--border); }

main { max-width: 1280px; margin: 0 auto; padding: 16px; }

h2 { font-size: 17px; margin: 8px 0; }
h3 { font-size: 15px; margin: 0; }

.muted { color: var(--muted); }
.error { color: var(--danger); }

.toolbar { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px; margin-top: 16px; }
.row { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.stack { display: flex; flex-direction: column; gap: 8px; }

.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  margin-top: 16px;
}
.panel.narrow { max-width: 420px; margin: 48px auto; }
.panel summary { cursor: pointer; font-weight: 600; }

.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 12px; align-items: end; }
.grid .span { grid-column: 1 / -1; }
label { display: flex; flex-direction: column; gap: 4px; color: var(--muted); font-size: 12.5px; }

input, select, button {
  font: inherit;
  padding: 7px 10px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  min-width: 0;
}
input:focus, select:focus, button:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }

button { background: var(--accent); color: var(--accent-text); border-color: var(--accent); cursor: pointer; }
button.ghost { background: transparent; color: var(--text); border-color: var(--border); }
button.danger { color: var(--danger); }
button.small { padding: 3px 8px; font-size: 12.5px; }
button:disabled { opacity: 0.55; cursor: progress; }

.table-wrap {
  overflow-x: auto;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-top: 8px;
}
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--border); vertical-align: top; white-space: nowrap; }
th { font-size: 12px; text-transform: uppercase; letter-spacing: 0.04em; color: var(--muted); font-weight: 600; }
tbody tr:last-child td { border-bottom: none; }
td.wrap { white-space: normal; min-width: 220px; }

.version { font-weight: 600; font-variant-numeric: tabular-nums; }
.build { color: var(--muted); font-variant-numeric: tabular-nums; }
.chip { display: inline-block; padding: 1px 8px; border-radius: 999px; font-size: 12px; background: var(--bg); }
.chip.production { background: var(--chip-production); }
.chip.beta { background: var(--chip-beta); }
.chip.internal { background: var(--chip-internal); }
.chip.constant { background: var(--chip-beta); }
.warning { color: var(--warn); font-size: 12.5px; white-space: normal; }

a { color: var(--accent); }

.flash { padding: 10px 12px; border-radius: var(--radius); border: 1px solid var(--border); background: var(--surface); }
.flash.ok { border-color: var(--ok); color: var(--ok); }
.flash.err { border-color: var(--danger); color: var(--danger); }

.status { display: grid; grid-template-columns: max-content 1fr; gap: 6px 16px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 12px 16px; }
.status dt { color: var(--muted); }
.status dd { margin: 0; }