:root {
  --bg: #0d1117;
  --card: #161b22;
  --card2: #1f2630;
  --text: #e6edf3;
  --muted: #8b949e;
  --border: #30363d;
  --accent: #58a6ff;
  --good: #3fb950;
  --warn: #d29922;
  --bad: #f85149;
  --shadow: rgba(0,0,0,.35);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  background:
    radial-gradient(circle at top left, rgba(88,166,255,.15), transparent 32rem),
    radial-gradient(circle at top right, rgba(63,185,80,.08), transparent 28rem),
    var(--bg);
  color: var(--text);
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1.5rem;
  padding: 1.5rem;
  border-bottom: 1px solid var(--border);
  background: rgba(13,17,23,.82);
  backdrop-filter: blur(10px);
  position: sticky;
  top: 0;
  z-index: 10;
}

h1, h2, h3, p { margin-top: 0; }

h1 {
  margin-bottom: .25rem;
  font-size: clamp(1.6rem, 3vw, 2.35rem);
}

h2 {
  font-size: 1.15rem;
  margin-bottom: 0;
}

h3 {
  margin-top: 1.25rem;
  margin-bottom: .65rem;
  color: var(--accent);
  font-size: .95rem;
  letter-spacing: .04em;
  text-transform: uppercase;
}

.subtitle {
  color: var(--muted);
  margin-bottom: 0;
}

.top-actions {
  display: flex;
  gap: .75rem;
  flex-wrap: wrap;
}

button, .action-link {
  background: var(--card2);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: .7rem 1rem;
  cursor: pointer;
  text-decoration: none;
  font-weight: 650;
  box-shadow: 0 10px 24px var(--shadow);
}

button:hover, .action-link:hover {
  border-color: var(--accent);
  transform: translateY(-1px);
}

.layout {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 1rem;
  padding: 1rem;
  max-width: 1500px;
  margin: 0 auto;
}

.card {
  grid-column: span 6;
  background: linear-gradient(180deg, rgba(31,38,48,.82), rgba(22,27,34,.95));
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 1.15rem;
  box-shadow: 0 22px 50px var(--shadow);
}

.card.wide { grid-column: span 12; }
.hero { grid-column: span 6; }

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: .75rem;
  margin-bottom: 1rem;
}

.grid.two {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: .75rem;
}

.label {
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: .06em;
  font-size: .72rem;
  font-weight: 700;
  margin-bottom: .25rem;
}

.value {
  font-size: 1.25rem;
  font-weight: 800;
}

.info-block {
  margin-top: 1rem;
  padding: .85rem;
  background: rgba(13,17,23,.45);
  border: 1px solid var(--border);
  border-radius: 16px;
}

.badge, .pill {
  border-radius: 999px;
  padding: .35rem .7rem;
  font-size: .8rem;
  font-weight: 800;
  border: 1px solid var(--border);
  color: var(--muted);
}

.badge.online {
  color: var(--good);
  border-color: rgba(63,185,80,.45);
  background: rgba(63,185,80,.1);
}

.badge.offline {
  color: var(--bad);
  border-color: rgba(248,81,73,.45);
  background: rgba(248,81,73,.1);
}

.quick-actions {
  display: flex;
  gap: .75rem;
  flex-wrap: wrap;
}

.list {
  display: grid;
  gap: .75rem;
}

.item {
  background: rgba(13,17,23,.48);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: .9rem;
}

.item-title {
  font-weight: 850;
  margin-bottom: .25rem;
}

.item-meta {
  color: var(--muted);
  font-size: .9rem;
  line-height: 1.45;
}

.item-desc {
  margin-top: .5rem;
  color: #c9d1d9;
}

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

code {
  background: #0d1117;
  border: 1px solid var(--border);
  padding: .1rem .35rem;
  border-radius: 6px;
}

.danger-zone { border-color: rgba(210,153,34,.35); }

footer {
  color: var(--muted);
  text-align: center;
  padding: 1.5rem;
}

.error {
  color: var(--bad);
  background: rgba(248,81,73,.08);
  border: 1px solid rgba(248,81,73,.35);
  padding: 1rem;
  border-radius: 16px;
}

@media (max-width: 900px) {
  .topbar {
    flex-direction: column;
    align-items: flex-start;
  }

  .card, .hero { grid-column: span 12; }

  .grid.two { grid-template-columns: 1fr; }
}