:root {
  color-scheme: light dark;
  --page: #f9f9f7; --surface: #fcfcfb;
  --ink: #0b0b0b; --ink-2: #52514e; --muted: #898781;
  --grid: #e1e0d9; --border: rgba(11, 11, 11, 0.10);
  --accent: #2a78d6; --critical: #d03b3b; --good: #0ca30c;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --page: #0d0d0d; --surface: #1a1a19;
    --ink: #ffffff; --ink-2: #c3c2b7; --muted: #898781;
    --grid: #2c2c2a; --border: rgba(255, 255, 255, 0.10);
    --accent: #3987e5;
  }
}
:root[data-theme="dark"] {
  --page: #0d0d0d; --surface: #1a1a19;
  --ink: #ffffff; --ink-2: #c3c2b7; --muted: #898781;
  --grid: #2c2c2a; --border: rgba(255, 255, 255, 0.10);
  --accent: #3987e5;
}
* { box-sizing: border-box; }
body { margin: 0; padding: 16px; background: var(--page); color: var(--ink);
       font: 14px/1.4 system-ui, -apple-system, "Segoe UI", sans-serif; }
.wrap { max-width: 520px; margin: 0 auto; }
.wide { max-width: 760px; }
h1 { font-size: 20px; margin: 0 0 4px; }
h2 { font-size: 14px; margin: 0 0 8px; }
.sub { color: var(--ink-2); font-size: 13px; }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: 8px; padding: 16px; margin-top: 12px; }
form { display: grid; gap: 10px; }
label { font-size: 12px; color: var(--ink-2); display: flex; flex-direction: column; gap: 4px; }
input { font: inherit; padding: 8px 10px; background: var(--page); color: var(--ink);
        border: 1px solid var(--border); border-radius: 6px; }
button { font: inherit; padding: 8px 12px; background: var(--surface); color: var(--ink);
         border: 1px solid var(--border); border-radius: 6px; cursor: pointer; }
button.primary { background: var(--accent); color: #fff; border-color: transparent; }
button.small { padding: 2px 8px; font-size: 12px; }
.msg { font-size: 13px; margin-top: 8px; min-height: 1.2em; }
.msg.bad { color: var(--critical); }
.msg.good { color: var(--good); }
nav { display: flex; gap: 12px; align-items: center; margin-bottom: 8px; font-size: 13px; color: var(--ink-2); flex-wrap: wrap; }
nav a { color: var(--ink); text-decoration: none; }
nav a:hover { text-decoration: underline; }
nav .spacer { flex: 1; }
table { border-collapse: collapse; width: 100%; font-size: 13px; }
th, td { text-align: left; padding: 6px; border-bottom: 1px solid var(--grid); }
th { color: var(--ink-2); font-weight: 500; }
.row { display: flex; gap: 8px; align-items: end; flex-wrap: wrap; }
.row label { flex: 1; min-width: 140px; }