* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: system-ui, -apple-system, sans-serif;
  background: #0b1020;
  color: #e5e7eb;
}

.hub {
  max-width: 720px;
  margin: 0 auto;
  padding: 48px 20px 64px;
}

.hub-header {
  text-align: center;
  margin-bottom: 40px;
}

.hub-header h1 {
  font-size: 2rem;
  margin: 0 0 8px;
}

.hub-header p {
  margin: 0;
  opacity: 0.65;
}

.hub-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
}

.hub-card {
  display: block;
  padding: 24px 20px;
  border-radius: 16px;
  text-decoration: none;
  color: inherit;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(14px);
  transition: 0.2s;
}

.hub-card:hover:not(.hub-card-disabled) {
  transform: translateY(-4px);
  border-color: #22d3ee;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.25);
}

.hub-card-disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.hub-card h2 {
  margin: 0 0 8px;
  font-size: 1.15rem;
}

.hub-card p {
  margin: 0;
  font-size: 0.85rem;
  opacity: 0.7;
}

.hub-badge {
  display: inline-block;
  margin-top: 12px;
  font-size: 0.7rem;
  padding: 2px 8px;
  border-radius: 999px;
  background: rgba(34, 211, 238, 0.15);
  color: #67e8f9;
}

.hub-badge-soon {
  background: rgba(148, 163, 184, 0.15);
  color: #94a3b8;
}

.hub-footer {
  text-align: center;
  margin-top: 48px;
  font-size: 0.8rem;
  opacity: 0.45;
}