:root {
  --bg: #f4f5f7;
  --card: #ffffff;
  --text: #1f2933;
  --muted: #6b7280;
  --line: #e5e7eb;
  --brand: #1d4ed8;
  --ok: #15803d;
  --bad: #b91c1c;
  --warn: #b45309;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font: 15px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color: var(--text);
  background: var(--bg);
}
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding: 0.75rem 1.25rem;
  background: var(--card);
  border-bottom: 1px solid var(--line);
}
.brand { font-weight: 700; color: var(--brand); text-decoration: none; font-size: 1.1rem; }
nav { display: flex; gap: 1rem; align-items: center; flex-wrap: wrap; }
nav a { color: var(--text); text-decoration: none; }
nav a:hover { text-decoration: underline; }
form.inline { display: inline; margin: 0; }
button.linklike {
  background: none; border: 0; padding: 0; color: var(--muted); cursor: pointer; font: inherit;
}
button.linklike:hover { text-decoration: underline; }
main { max-width: 1200px; margin: 1.5rem auto; padding: 0 1.25rem; }
footer { text-align: center; color: var(--muted); font-size: 0.85rem; padding: 2rem 0; }
h1 { font-size: 1.5rem; margin: 0 0 1rem; }
h2 { font-size: 1.1rem; margin: 0 0 0.75rem; }
a { color: var(--brand); }
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 1.25rem 1.5rem;
  margin-bottom: 1.5rem;
  overflow-x: auto;
}
.card.narrow { max-width: 420px; margin: 3rem auto; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(340px, 1fr)); gap: 1.5rem; align-items: start; }
.grid .card { margin-bottom: 0; }
.grid + .card { margin-top: 1.5rem; }
label { display: block; margin: 0.75rem 0 0.25rem; font-weight: 600; }
label.check { font-weight: 400; margin-top: 1rem; }
input[type="text"], input[type="password"], select {
  width: 100%; padding: 0.5rem 0.6rem; border: 1px solid var(--line); border-radius: 6px; font: inherit; background: #fff;
}
button[type="submit"] {
  margin-top: 1rem; padding: 0.55rem 1.1rem; border: 0; border-radius: 6px;
  background: var(--brand); color: #fff; font: inherit; font-weight: 600; cursor: pointer;
}
form.inline button[type="submit"] { margin: 0 0.5rem 0.5rem 0; }
.filters { display: flex; flex-wrap: wrap; gap: 0.5rem; align-items: center; }
.filters select, .filters input[type="text"] { width: auto; min-width: 140px; }
.filters button[type="submit"] { margin: 0; }
.error { color: var(--bad); background: #fef2f2; border: 1px solid #fecaca; padding: 0.5rem 0.75rem; border-radius: 6px; }
.notice { color: #92400e; background: #fffbeb; border: 1px solid #fde68a; padding: 0.5rem 0.75rem; border-radius: 6px; }
.flash { color: #065f46; background: #ecfdf5; border: 1px solid #a7f3d0; padding: 0.5rem 0.75rem; border-radius: 6px; }
.muted { color: var(--muted); }
.small { font-size: 0.85rem; }
.prewrap { white-space: pre-wrap; }
.tag { display: inline-block; font-size: 0.75rem; padding: 0 0.4rem; border-radius: 4px; border: 1px solid var(--line); }
.tag.warn { color: var(--warn); border-color: #fcd34d; background: #fffbeb; }
table { border-collapse: collapse; width: 100%; }
th, td { text-align: left; padding: 0.4rem 0.5rem; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--muted); font-weight: 600; white-space: nowrap; }
td.ok, span.ok { color: var(--ok); font-weight: 600; }
td.bad, span.bad { color: var(--bad); font-weight: 600; }
code { background: #f3f4f6; padding: 0.1rem 0.3rem; border-radius: 4px; font-size: 0.9rem; word-break: break-all; }
pre { background: #f3f4f6; padding: 0.75rem; border-radius: 6px; overflow-x: auto; font-size: 0.85rem; }
details summary { cursor: pointer; color: var(--brand); margin-bottom: 0.5rem; }
img.logo { max-height: 48px; max-width: 200px; }