/* ============================================
   R&D PRIME — Hub e Painel (tema escuro)
   ============================================ */

/* ---------- HUB DE ACESSO ---------- */
.hub-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  max-width: 1000px;
  margin: 0 auto;
}

.hub-card {
  position: relative;
  background: var(--bg-elev);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-xl);
  padding: 40px 32px;
  text-align: left;
  text-decoration: none;
  color: var(--text);
  overflow: hidden;
  transition: transform 0.3s var(--ease), border-color 0.3s, box-shadow 0.3s;
}

.hub-card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: var(--grad-border);
  -webkitmask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity 0.4s;
  pointer-events: none;
}

.hub-card:hover {
  transform: translateY(-6px);
  border-color: rgba(230, 180, 90, 0.3);
  box-shadow: 0 20px 40px -20px rgba(0,0,0,0.8), 0 0 30px -10px rgba(230,180,90,0.2);
}
.hub-card:hover::before { opacity: 1; }

.hub-card .hub-icon {
  width: 56px; height: 56px;
  display: grid; place-items: center;
  border-radius: 14px;
  background: var(--gold-soft);
  color: var(--gold-2);
  border: 1px solid rgba(230,180,90,0.25);
  margin-bottom: 24px;
  transition: transform 0.4s var(--ease);
}
.hub-card:hover .hub-icon { transform: scale(1.08) rotate(-4deg); }

.hub-card h2 {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 700;
  margin: 0 0 10px;
}

.hub-card p {
  color: var(--text-soft);
  font-size: 0.95rem;
  margin: 0 0 24px;
  line-height: 1.5;
}

.hub-card .hub-action {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--gold-2);
  font-size: 14px;
}

/* Ocultar hubs não permitidos */
.hub-card[hidden] { display: none !important; }

/* Ajustes de responsividade para a navbar no hub */
@media (max-width: 720px) {
  .hub-card { padding: 30px 24px; }
  .nav-inner { flex-direction: column; align-items: flex-start; }
  div[style*="justify-content:flex-end"] { width: 100%; justify-content: space-between; }
}