:root {
  --bg: #0b0d10;
  --card: #14171c;
  --border: #262b33;
  --text: #e6e8eb;
  --muted: #8a919c;
  --ok: #3ecf8e;
  --warn: #f5a623;
  --err: #e5484d;
  --accent: #5b8cff;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

.wrap {
  max-width: 960px;
  margin: 0 auto;
  padding: 32px 20px 60px;
}

.head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}

.head h1 {
  font-size: 20px;
  font-weight: 600;
  margin: 0;
}

.btn {
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 8px 16px;
  font-size: 14px;
  cursor: pointer;
}
.btn:active { opacity: 0.8; }

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 14px;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px 18px;
  min-height: 150px;
}

.card.skeleton {
  background: linear-gradient(90deg, var(--card) 25%, #1c2027 37%, var(--card) 63%);
  background-size: 400% 100%;
  animation: shimmer 1.4s infinite;
}
@keyframes shimmer {
  0% { background-position: 100% 50%; }
  100% { background-position: 0 50%; }
}

.card-host {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 10px;
  word-break: break-all;
  display: flex;
  align-items: center;
  gap: 8px;
}

.dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}
.dot.ok { background: var(--ok); }
.dot.err { background: var(--err); }

.row {
  display: flex;
  justify-content: space-between;
  font-size: 13px;
  padding: 4px 0;
  border-bottom: 1px dashed var(--border);
}
.row:last-child { border-bottom: none; }

.row .k { color: var(--muted); }
.row .v { font-family: "SF Mono", Menlo, Consolas, monospace; }

.badge {
  display: inline-block;
  padding: 1px 6px;
  border-radius: 4px;
  font-size: 11px;
  background: rgba(91, 140, 255, 0.15);
  color: var(--accent);
}

.card-err {
  color: var(--err);
  font-size: 13px;
}

.updated {
  margin-top: 20px;
  font-size: 12px;
  color: var(--muted);
  text-align: center;
}