:root {
  --bg: #0a0c10;
  --panel: #13171f;
  --accent: #00f2ff;
  --accent-dim: rgba(0, 242, 255, 0.1);
  --text: #e0e6ed;
  --text-dim: #707a8c;
  --border: #232933;
}

html, body {
  margin: 0;
  padding: 0;
  background-color: var(--bg);
  background-image: 
    radial-gradient(at 0% 0%, rgba(0, 242, 255, 0.05) 0px, transparent 50%),
    radial-gradient(at 100% 100%, rgba(0, 242, 255, 0.02) 0px, transparent 50%);
  color: var(--text);
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
}

body {
  padding: 40px 20px;
  max-width: 800px;
  margin: 0 auto;
}

h1 {
  font-size: 1.5rem;
  text-transform: uppercase;
  letter-spacing: 4px;
  margin-bottom: 30px;
  border-bottom: 1px solid var(--border);
  padding-bottom: 10px;
  color: var(--text);
}

#status {
  background: var(--accent-dim);
  border: 1px solid var(--accent);
  padding: 12px 20px;
  border-radius: 8px;
  margin-bottom: 40px;
  font-size: 0.9rem;
  color: var(--accent);
  display: flex;
  align-items: center;
  gap: 12px;
}

#status::before {
  content: "";
  width: 10px;
  height: 10px;
  background: var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--accent);
  animation: blink 1s infinite;
}

#subnets {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.subnet {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 0;
  overflow: hidden;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.subnet:hover {
  border-color: var(--accent);
  transform: translateX(5px);
}

.subnet h3 {
  margin: 0;
  padding: 15px 20px;
  background: rgba(255,255,255,0.03);
  font-size: 1.1rem;
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
}

.subnet .count {
  margin: 15px 20px 10px;
  font-size: 0.75rem;
  text-transform: uppercase;
  color: var(--accent);
  letter-spacing: 1px;
}

.subnet ul {
  margin: 0;
  padding: 15px 20px;
  list-style: none;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 8px;
  background: rgba(0,0,0,0.2);
}

.subnet li {
  font-size: 0.8rem;
  color: var(--text-dim);
  padding: 4px 8px;
  border-radius: 4px;
  background: rgba(255,255,255,0.02);
  transition: color 0.2s;
}

.subnet li:hover {
  color: var(--accent);
  background: var(--accent-dim);
}

@keyframes blink {
  0% { opacity: 1; }
  50% { opacity: 0.3; }
  100% { opacity: 1; }
}

::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent); }

.subnet-header {
  cursor: pointer;
  user-select: none;
}

.subnet-header::after {
  content: "▸";
  transition: transform 0.2s ease;
}

.subnet.open .subnet-header::after {
  transform: rotate(90deg);
}

.subnet-content {
  display: none;
}

.subnet.open .subnet-content {
  display: block;
}