:root {
  color-scheme: light dark;
  --bg: #f5f6f8;
  --card: #ffffff;
  --text: #1c1f26;
  --muted: #6b7280;
  --ok: #15803d;
  --bad: #b91c1c;
  --border: #e3e5e9;
  --accent: #2563eb;
  --accent-text: #ffffff;
  --input: #ffffff;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #12141a;
    --card: #1b1e26;
    --text: #e6e8ee;
    --muted: #9aa1ad;
    --ok: #4ade80;
    --bad: #f87171;
    --border: #2a2e39;
    --accent: #3b82f6;
    --input: #12141a;
  }
}
* { box-sizing: border-box; }
body {
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
}
.centered {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
}
.page {
  max-width: 960px;
  margin: 0 auto;
  padding: 24px 16px;
}
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 24px 28px;
  width: min(420px, 100%);
}
.page .card { width: 100%; margin-bottom: 16px; }
h1 { font-size: 20px; margin: 0 0 4px; }
h2 { font-size: 16px; margin: 0 0 12px; }
p.sub { margin: 0 0 16px; color: var(--muted); }
dl { display: grid; grid-template-columns: auto 1fr; gap: 6px 16px; margin: 0; }
dt { color: var(--muted); }
dd { margin: 0; font-variant-numeric: tabular-nums; }
.ok { color: var(--ok); font-weight: 600; }
.bad { color: var(--bad); font-weight: 600; }
label { display: block; margin: 12px 0 4px; color: var(--muted); }
input, select {
  width: 100%;
  min-height: 44px;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--input);
  color: var(--text);
  font: inherit;
}
button {
  min-height: 44px;
  padding: 8px 16px;
  border: 1px solid var(--accent);
  border-radius: 6px;
  background: var(--accent);
  color: var(--accent-text);
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}
button.secondary { background: transparent; color: var(--text); border-color: var(--border); }
button:disabled { opacity: 0.6; cursor: default; }
.actions { display: flex; gap: 8px; margin-top: 16px; flex-wrap: wrap; align-items: center; }
.message { min-height: 20px; margin-top: 12px; }
.row { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; justify-content: space-between; }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 8px 6px; border-bottom: 1px solid var(--border); vertical-align: middle; }
th { color: var(--muted); font-weight: 500; }
.table-wrap { overflow-x: auto; }
a { color: var(--accent); }
.badge { display: inline-block; padding: 2px 8px; border-radius: 999px; border: 1px solid var(--border); color: var(--muted); font-size: 12px; }