* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg-dark: #0a0a14;
  --card-bg: rgba(255, 255, 255, 0.05);
  --card-border: rgba(255, 255, 255, 0.10);
  --card-hover-border: rgba(167, 139, 250, 0.4);
  --text-primary: #e2e8f0;
  --text-secondary: rgba(255, 255, 255, 0.35);
  --accent-glow: rgba(139, 92, 246, 0.15);
  --status-online: #22c55e;
  --status-checking: #f59e0b;
  --status-offline: #ef4444;
}

body {
  min-height: 100vh;
  background: var(--bg-dark);
  background-image:
    radial-gradient(ellipse at 20% 20%, rgba(99, 102, 241, 0.15) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 80%, rgba(168, 85, 247, 0.10) 0%, transparent 50%);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  color: var(--text-primary);
  padding: 40px 24px;
  line-height: 1.5;
}

header {
  text-align: center;
  margin-bottom: 48px;
}

header h1 {
  font-size: 2.5rem;
  font-weight: 800;
  background: linear-gradient(135deg, #a78bfa, #60a5fa);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -1px;
}

header p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-top: 8px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 16px;
  max-width: 900px;
  margin: 0 auto;
}

.card {
  background: var(--card-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--card-border);
  border-radius: 14px;
  padding: 24px 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  transition: transform 0.2s cubic-bezier(0.4, 0, 0.2, 1), 
              background 0.2s, 
              border-color 0.2s, 
              box-shadow 0.2s;
  text-decoration: none;
  color: inherit;
  position: relative;
  overflow: hidden;
}

.card:hover {
  transform: translateY(-4px);
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--card-hover-border);
  box-shadow: 0 10px 30px -10px var(--accent-glow);
}

.card-icon {
  width: 56px;
  height: 56px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 4px;
}

.card-icon img {
  width: 40px;
  height: 40px;
  object-fit: contain;
}

.card-icon span {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-secondary);
}

.card-name {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-primary);
  text-align: center;
}

.card-desc {
  font-size: 0.75rem;
  color: var(--text-secondary);
  text-align: center;
  line-height: 1.4;
}

.status-dot {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  transition: background-color 0.3s, box-shadow 0.3s;
}

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

.status-dot.offline {
  background: var(--status-offline);
  box-shadow: 0 0 8px var(--status-offline);
}

.status-dot.checking {
  background: var(--status-checking);
  animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.8); }
}

.footer-info {
  max-width: 900px;
  margin: 40px auto 0;
  padding: 20px;
  background: rgba(99, 102, 241, 0.05);
  border: 1px solid rgba(99, 102, 241, 0.15);
  border-radius: 12px;
  font-size: 0.8rem;
  color: var(--text-secondary);
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  justify-content: center;
  align-items: center;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 8px;
}

.legend-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.legend-dot.online { background: var(--status-online); }
.legend-dot.checking { background: var(--status-checking); }
.legend-dot.offline { background: var(--status-offline); }

@media (max-width: 480px) {
  .grid {
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 12px;
  }
  
  header h1 {
    font-size: 2rem;
  }
}