:root {
  color-scheme: light dark;
  --bg: #0f1419;
  --card: #151b22;
  --text: #e6edf3;
  --muted: #8b949e;
  --border: #30363d;
  --green: #2ea043;
  --orange: #d29922;
  --red: #f85149;
  --accent: #58a6ff;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f6f8fa;
    --card: #ffffff;
    --text: #1f2328;
    --muted: #57606a;
    --border: #d0d7de;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

.header, .footer {
  max-width: 1100px;
  margin: 0 auto;
  padding: 1.25rem 1rem;
}

.header h1 {
  margin: 0 0 0.25rem;
  font-size: 1.5rem;
  font-weight: 650;
}

.muted { color: var(--muted); }
.small { font-size: 0.875rem; }
.break { word-break: break-word; }

.main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1rem 2rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.signal {
  text-align: center;
  padding: 1.5rem 1rem 0.5rem;
}

.lamp-heading {
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin: 0 0 0.5rem;
}

.self-signal {
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
}

.lamp-small {
  width: min(96px, 22vw);
  height: min(96px, 22vw);
  border-radius: 50%;
  margin: 0 auto 0.65rem;
  border: 4px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.28);
  transition: background 0.35s ease, box-shadow 0.35s ease;
}

.lamp-small--ok {
  background: radial-gradient(circle at 30% 30%, #56d364, var(--green));
}

.lamp-small--warn {
  background: radial-gradient(circle at 30% 30%, #f2cc60, var(--orange));
}

.state-text-small {
  font-size: 1rem;
  font-weight: 650;
  margin: 0.2rem 0;
}

.hr-soft {
  border: none;
  border-top: 1px solid var(--border);
  margin: 0.75rem 0;
}

.lamp {
  width: min(280px, 70vw);
  height: min(280px, 70vw);
  border-radius: 50%;
  margin: 0 auto 1rem;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
  border: 6px solid rgba(255, 255, 255, 0.08);
  transition: background 0.35s ease, transform 0.35s ease, box-shadow 0.35s ease;
}

.lamp--unknown {
  background: radial-gradient(circle at 30% 30%, #8b949e, #6e7681);
  box-shadow: 0 20px 60px rgba(110, 118, 129, 0.35);
}

.lamp--healthy {
  background: radial-gradient(circle at 30% 30%, #56d364, var(--green));
  box-shadow: 0 20px 60px rgba(46, 160, 67, 0.35);
}

.lamp--degraded {
  background: radial-gradient(circle at 30% 30%, #f2cc60, var(--orange));
  box-shadow: 0 20px 60px rgba(210, 153, 34, 0.35);
}

.lamp--down {
  background: radial-gradient(circle at 30% 30%, #ff7b72, var(--red));
  box-shadow: 0 20px 60px rgba(248, 81, 73, 0.35);
}

.state-text {
  font-size: 1.35rem;
  font-weight: 700;
  margin: 0.25rem 0;
}

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

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1rem 1.1rem;
}

.card h2 {
  margin: 0 0 0.75rem;
  font-size: 1rem;
  font-weight: 650;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.kv {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.35rem 1rem;
  margin: 0;
}

.kv dt {
  margin: 0;
  color: var(--muted);
  font-weight: 500;
}

.kv dd {
  margin: 0;
  text-align: right;
}

.table-wrap {
  overflow: auto;
  border-radius: 8px;
  border: 1px solid var(--border);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

th, td {
  padding: 0.5rem 0.6rem;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}

th {
  text-align: left;
  color: var(--muted);
  font-weight: 600;
  background: rgba(127, 127, 127, 0.08);
  position: sticky;
  top: 0;
}

tr:last-child td {
  border-bottom: none;
}

.badge {
  display: inline-block;
  padding: 0.1rem 0.45rem;
  border-radius: 999px;
  font-size: 0.8rem;
  border: 1px solid var(--border);
}

.badge--ok { color: var(--green); }
.badge--bad { color: var(--red); }