:root {
  --bg: #0f172a;
  --surface: #1e293b;
  --text: #e2e8f0;
  --text-secondary: #94a3b8;
  --primary: #38bdf8;
  --accent: #facc15;
  --danger: #ef4444;
  --success: #22c55e;
  --radius: 8px;
}
body {
  margin: 0;
  font-family: 'JetBrains Mono', monospace;
  background: var(--bg);
  color: var(--text);
}

#app {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem;
}

#header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 0;
  border-bottom: 1px solid var(--surface);
  margin-bottom: 2rem;
}

.logo {
  font-size: 1.5rem;
  font-weight: bold;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 2px;
}

#nav {
  display: flex;
  gap: 1.5rem;
}

.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  text-transform: uppercase;
  font-size: 0.9rem;
  letter-spacing: 1px;
  transition: color 0.2s;
}

.nav-link:hover,
.nav-link.active {
  color: var(--primary);
}

#module-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
}

.module-card {
  background: var(--surface);
  border: 1px solid rgba(255,255,255,0.05);
  border-radius: var(--radius);
  padding: 2rem;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
  position: relative;
  overflow: hidden;
}

.module-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 25px rgba(0,0,0,0.4);
  border-color: var(--primary);
}

.module-card .icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.module-card h3 {
  margin: 0 0 0.5rem;
  color: var(--primary);
  font-size: 1.2rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.module-card p {
  margin: 0;
  color: var(--text-secondary);
  font-size: 0.85rem;
}

.module-card .status {
  position: absolute;
  top: 1rem;
  right: 1rem;
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.module-card .status.online {
  background: var(--success);
  box-shadow: 0 0 8px var(--success);
}

.module-card .status.offline {
  background: var(--danger);
}

footer {
  margin-top: 3rem;
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.8rem;
  border-top: 1px solid var(--surface);
  padding-top: 1rem;
}