* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
  background: #f3f5f7; color: #24292f; font-size: 14px; }
a { color: #0969da; text-decoration: none; }
.layout { display: flex; min-height: 100vh; }
.sidebar { width: 210px; background: #1f2937; color: #cbd5e1; flex-shrink: 0; }
.sidebar .brand { padding: 20px 18px; font-size: 17px; font-weight: 700; color: #fff;
  border-bottom: 1px solid #374151; }
.sidebar a.item, .sidebar button.item { display: block; width: 100%; text-align: left;
  padding: 12px 18px; color: #cbd5e1; background: transparent; border: 0;
  font: inherit; cursor: pointer; }
.sidebar a.item:hover, .sidebar a.item.active, .sidebar button.item:hover { background: #111827; color: #fff; }
.logout-form { margin: 0; }
.btn:disabled { opacity: 0.55; cursor: default; }
.main { flex: 1; padding: 24px 28px; max-width: 1100px; }
h1 { font-size: 20px; margin-bottom: 18px; }
h2 { font-size: 16px; margin: 18px 0 10px; }
.card { background: #fff; border: 1px solid #e5e7eb; border-radius: 10px;
  padding: 18px; margin-bottom: 16px; }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid #eef0f2; }
th { color: #6b7280; font-weight: 600; background: #fafbfc; }
.btn { display: inline-block; padding: 8px 14px; border-radius: 8px; border: 1px solid #d0d7de;
  background: #fff; cursor: pointer; font-size: 14px; }
.btn-primary { background: #1f6feb; color: #fff; border-color: #1f6feb; }
.btn-danger { color: #cf222e; border-color: #ffc8c8; }
.btn-sm { padding: 5px 10px; font-size: 13px; }
label { display: block; margin: 10px 0 4px; color: #374151; }
input[type=text], input[type=password], textarea {
  width: 100%; padding: 9px 10px; border: 1px solid #d0d7de; border-radius: 8px; font-size: 14px; }
textarea { resize: vertical; min-height: 70px; }
.row { display: flex; gap: 16px; flex-wrap: wrap; }
.row > div { flex: 1; min-width: 220px; }
.badge { padding: 3px 9px; border-radius: 999px; font-size: 12px; }
.b-ok { background: #dafbe1; color: #1a7f37; }
.b-warn { background: #fff8c5; color: #9a6700; }
.b-bad { background: #ffebe9; color: #cf222e; }
.flash { padding: 10px 14px; border-radius: 8px; margin-bottom: 14px; white-space: pre-wrap; }
.flash.ok { background: #dafbe1; color: #1a7f37; }
.flash.error { background: #ffebe9; color: #cf222e; }
pre.log { background: #0d1117; color: #d1d5db; padding: 14px; border-radius: 8px;
  white-space: pre-wrap; word-break: break-all; max-height: 360px; overflow: auto; font-size: 13px; }
.muted { color: #6b7280; font-size: 13px; }
.login-wrap { max-width: 380px; margin: 12vh auto; }
.login-wrap .card { padding: 28px; }
.check { display: flex; align-items: center; gap: 8px; margin: 12px 0; }
details summary { cursor: pointer; color: #0969da; }