* { box-sizing: border-box; }
body {
  font-family: -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  margin: 0;
  background: #0f1419;
  color: #e6edf3;
  line-height: 1.5;
}
header, main, footer {
  max-width: 960px;
  margin: 0 auto;
  padding: 1rem 1.5rem;
}
header h1 { font-size: 1.6rem; margin: 0.5rem 0 0.25rem; }
.muted { color: #8b949e; }
.small { font-size: 0.85rem; }
.err { color: #f87171; }

table { width: 100%; border-collapse: collapse; margin: 0.5rem 0; }
th, td { text-align: left; padding: 0.4rem 0.6rem; border-bottom: 1px solid #21262d; }
th { color: #8b949e; font-weight: 500; font-size: 0.9rem; }

.ok    { color: #34d399; }
.warn  { color: #fbbf24; }
.off   { color: #f87171; }

button {
  background: #21262d;
  color: #e6edf3;
  border: 1px solid #30363d;
  border-radius: 4px;
  padding: 0.35rem 0.8rem;
  cursor: pointer;
}
button:hover { background: #30363d; }

input[type="password"], input[type="text"], select {
  background: #0d1117;
  color: #e6edf3;
  border: 1px solid #30363d;
  border-radius: 4px;
  padding: 0.35rem 0.5rem;
  font-family: inherit;
  font-size: 0.9rem;
}

.row { display: flex; gap: 1.5rem; flex-wrap: wrap; }
.col { flex: 1 1 300px; min-width: 0; }
.list { list-style: none; padding: 0; margin: 0.25rem 0; max-height: 320px; overflow: auto; }
.list li {
  padding: 0.35rem 0.5rem;
  border-bottom: 1px solid #21262d;
  font-size: 0.85rem;
  word-break: break-all;
}
.list.scroll { background: #0d1117; border: 1px solid #21262d; border-radius: 4px; }

form { display: flex; flex-direction: column; gap: 0.5rem; max-width: 720px; }
form label { display: flex; align-items: center; gap: 0.5rem; }
form input { flex: 1; }

footer { color: #8b949e; border-top: 1px solid #21262d; margin-top: 2rem; padding-top: 1rem; }
footer a { color: #58a6ff; text-decoration: none; margin-right: 1rem; }
footer a:hover { text-decoration: underline; }

h2 { font-size: 1.2rem; margin-top: 1.5rem; }
h3 { font-size: 1rem; margin-top: 1rem; color: #c9d1d9; }