:root {
  --bg: #0b0d10;
  --bg-elev: #14181d;
  --bg-elev-2: #1a1f25;
  --border: #232a31;
  --text: #e6e9ee;
  --text-dim: #8a93a0;
  --text-faint: #5a626d;
  --accent: #6ee7b7;
  --accent-dim: #2c8e6a;
  --good: #4ade80;
  --warn: #facc15;
  --bad: #f87171;
  --paused: #94a3b8;
  --radius: 12px;
  --shadow: 0 1px 0 rgba(255, 255, 255, 0.03) inset;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "Inter", "SF Pro Text",
          Roboto, "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.4;
  -webkit-font-smoothing: antialiased;
}

.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
  background: var(--bg);
  position: sticky;
  top: 0;
  z-index: 5;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
}
.logo {
  width: 28px;
  height: 28px;
  object-fit: contain;
  display: block;
}
.brand-name { font-weight: 600; font-size: 18px; letter-spacing: 0.2px; }
.brand-sub { color: var(--text-dim); font-size: 14px; }

.meta {
  display: flex;
  align-items: baseline;
  gap: 18px;
  font-size: 13px;
}
.summary { color: var(--text); font-weight: 500; }
.refresh { color: var(--text-faint); font-variant-numeric: tabular-nums; }

main {
  max-width: 1240px;
  margin: 0 auto;
  padding: 24px;
}

.empty {
  color: var(--text-dim);
  padding: 80px 0;
  text-align: center;
}

.group {
  margin-bottom: 32px;
}

.group-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 18px;
  font-weight: 600;
  margin: 0 0 12px 4px;
  color: var(--text);
}
.group-title .flag { font-size: 22px; line-height: 1; }
.group-title .count { color: var(--text-faint); font-weight: 400; font-size: 14px; }

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 12px;
}

.card {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}
.card-name {
  font-size: 14px;
  font-weight: 500;
  color: var(--text);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.badge {
  font-size: 11px;
  padding: 3px 8px;
  border-radius: 999px;
  text-transform: uppercase;
  letter-spacing: 0.4px;
  font-weight: 600;
  border: 1px solid transparent;
  white-space: nowrap;
}
.badge.online { color: var(--good); border-color: rgba(74, 222, 128, 0.3); background: rgba(74, 222, 128, 0.08); }
.badge.offline { color: var(--bad); border-color: rgba(248, 113, 113, 0.3); background: rgba(248, 113, 113, 0.08); }
.badge.paused { color: var(--paused); border-color: rgba(148, 163, 184, 0.3); background: rgba(148, 163, 184, 0.08); }
.badge.unknown { color: var(--text-faint); border-color: var(--border); background: transparent; }

.metrics {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.metric {
  display: grid;
  grid-template-columns: 42px 1fr 48px;
  gap: 8px;
  align-items: center;
  font-size: 12px;
}
.metric .label { color: var(--text-dim); font-size: 11px; text-transform: uppercase; letter-spacing: 0.4px; }
.metric .val { color: var(--text); font-variant-numeric: tabular-nums; text-align: right; }

.bar {
  height: 6px;
  background: var(--bg-elev-2);
  border-radius: 999px;
  overflow: hidden;
  position: relative;
}
.bar > span {
  display: block;
  height: 100%;
  border-radius: 999px;
  transition: width 0.6s ease, background-color 0.4s ease;
}
.bar.good > span { background: var(--good); }
.bar.warn > span { background: var(--warn); }
.bar.bad > span { background: var(--bad); }

.foot {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  font-size: 12px;
  color: var(--text-dim);
  border-top: 1px solid var(--border);
  padding-top: 10px;
  margin-top: 2px;
}
.foot .users { color: var(--text); }
.foot .users strong { color: var(--accent); font-variant-numeric: tabular-nums; }

.footer {
  text-align: center;
  color: var(--text-faint);
  font-size: 12px;
  padding: 24px;
  border-top: 1px solid var(--border);
  margin-top: 32px;
}
.source-tag { padding: 0 4px; }
.source-tag.ok { color: var(--good); }
.source-tag.err { color: var(--bad); }

@media (max-width: 520px) {
  .header { padding: 14px 16px; }
  main { padding: 16px; }
  .meta { gap: 10px; }
}

.version {
  color: var(--text-faint);
  font-size: 11px;
  letter-spacing: 0.3px;
  padding: 2px 6px;
  border: 1px solid var(--border);
  border-radius: 999px;
  margin-left: 2px;
}