:root {
  --bg: #F5F5F0;
  --card-bg: #FFFFFF;
  --border: #1A1A2E;
  --border-lite: #D1D5DB;
  --shadow: #1A1A2E;
  --shadow-offset: 3px;

  --accent-green: #10B981;
  --accent-green-bg: #ECFDF5;
  --accent-green-border: #6EE7B7;
  --accent-yellow: #F59E0B;
  --accent-yellow-bg: #FFFBEB;
  --accent-yellow-border: #FCD34D;
  --accent-red: #EF4444;
  --accent-red-bg: #FEF2F2;
  --accent-red-border: #FCA5A5;
  --accent-blue: #3B82F6;
  --accent-blue-bg: #EFF6FF;
  --accent-blue-border: #93C5FD;

  --text-primary: #111827;
  --text-secondary: #4B5563;
  --text-muted: #9CA3AF;

  --radius: 10px;
  --radius-sm: 7px;
  --radius-xs: 5px;
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  font-family: Inter, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text-primary);
}

.infra {
  max-width: 960px;
  margin: 0 auto;
  padding: 20px 12px 28px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.infra__head,
.infra__summary,
.infra__panel,
.host-card,
.alert-item,
.empty {
  background: var(--card-bg);
  border: 2px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-offset) var(--shadow-offset) 0 var(--shadow);
}

.infra__head {
  padding: 12px;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.infra__title-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 6px;
}

.infra__brand {
  width: 28px;
  height: 28px;
  object-fit: cover;
  border-radius: 8px;
  border: 1.5px solid var(--border-lite);
  background: #fff;
}

h1 {
  margin: 0;
  font-size: 1rem;
  font-weight: 800;
}

#infraMeta {
  margin: 0;
  font-size: 0.75rem;
  color: var(--text-muted);
}

.badge {
  font-size: 0.625rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .05em;
  border: 1.5px solid var(--accent-blue-border);
  background: var(--accent-blue-bg);
  color: var(--accent-blue);
  border-radius: var(--radius-xs);
  padding: 2px 7px;
}

.btn {
  text-decoration: none;
  font-size: .75rem;
  font-weight: 700;
  border: 1.5px solid var(--border-lite);
  border-radius: var(--radius-xs);
  padding: 6px 10px;
  color: var(--text-secondary);
  background: #fff;
  white-space: nowrap;
}

.infra__summary {
  padding: 10px;
  display: grid;
  grid-template-columns: repeat(4, minmax(0,1fr));
  gap: 8px;
}

.sum {
  border: 1.5px solid var(--border-lite);
  border-radius: var(--radius-sm);
  padding: 8px;
  background: var(--bg);
}
.sum__label { font-size: .625rem; color: var(--text-muted); text-transform: uppercase; font-weight: 700; letter-spacing: .05em; }
.sum__value { margin-top: 2px; font-size: 1rem; font-weight: 800; }

.infra__panel { padding: 10px; }

h2 {
  margin: 0 0 8px;
  font-size: .6875rem;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--text-secondary);
  border-bottom: 2px solid var(--border);
  padding-bottom: 6px;
}

.hosts-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 8px; }
.host-card { padding: 10px; }
.host-title { display: flex; justify-content: space-between; align-items: center; margin-bottom: 6px; font-weight: 700; gap:8px; }
.host-title span:first-child { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.dot { width: 10px; height: 10px; border-radius: 50%; display: inline-block; border: 1px solid var(--border); flex-shrink: 0; }
.dot.ok { background: var(--accent-green); }
.dot.warn { background: var(--accent-yellow); }
.dot.err { background: var(--accent-red); }

.metrics { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 6px; font-size: .75rem; }
.metric { background: var(--bg); border: 1px solid var(--border-lite); border-radius: var(--radius-sm); padding: 6px; }
.meta { margin-top: 6px; font-size: .6875rem; color: var(--text-muted); }

.alerts-list { display: grid; gap: 6px; }
.alert-item { padding: 8px; font-size: .75rem; }
.alert-item--warn { border-color: var(--accent-yellow-border); background: var(--accent-yellow-bg); }
.alert-item--error { border-color: var(--accent-red-border); background: var(--accent-red-bg); }
.alert-item--info { border-color: var(--accent-blue-border); background: var(--accent-blue-bg); }

.empty {
  border-style: dashed;
  border-color: var(--border-lite);
  box-shadow: none;
  padding: 10px;
  font-size: .75rem;
  color: var(--text-muted);
}

@media (max-width: 760px){
  .infra__summary { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .hosts-grid { grid-template-columns: 1fr; }
}

@media (min-width: 960px) {
  .infra { padding: 40px 20px 32px; }
}