/* ════════════════════════════════════════════════════════════
   DIAGNÓSTICO IA · capa futurista luxury (mejora, no reescribe la lógica)
   Grid animado, orbe IA con glow, opciones premium, frame con borde de luz.
   ════════════════════════════════════════════════════════════ */

/* Fondo: grid futurista sutil dentro de la sección */
#diagnostico::before {
  content: ""; position: absolute; inset: 0; z-index: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(134,31,24,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(134,31,24,0.04) 1px, transparent 1px);
  background-size: 46px 46px;
  -webkit-mask-image: radial-gradient(70% 60% at 50% 35%, #000 30%, transparent 75%);
  mask-image: radial-gradient(70% 60% at 50% 35%, #000 30%, transparent 75%);
  animation: diagGridFloat 18s ease-in-out infinite alternate;
}
@keyframes diagGridFloat { from { background-position: 0 0; } to { background-position: 46px 30px; } }

/* Orbe IA del header (reemplazo visual del indicador) */
.diag-ai-indicator {
  position: relative; display: inline-flex; align-items: center; gap: 0.55rem;
  padding: 0.5rem 1.1rem 0.5rem 0.6rem; border-radius: 999px;
  background: rgba(92,7,16,0.04); border: 1px solid rgba(197,163,90,0.3);
  margin-bottom: 1.25rem; backdrop-filter: blur(6px);
}
.diag-ai-indicator::after {
  content: ""; position: absolute; left: 0.6rem; width: 20px; height: 20px; border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, #ECD7A4, #C9A24E 55%, #9A7B36);
  box-shadow: 0 0 14px rgba(197,163,90,0.7);
}
.diag-ai-label { padding-left: 1.6rem; font-size: 0.68rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--gold-dark, #9A7B36); font-weight: 600; }
/* las "pulse" originales las ocultamos para usar el orbe nuevo */
.diag-ai-pulse { display: none !important; }

/* Frame de la máquina con borde de luz que recorre */
.diag-machine {
  position: relative;
}
.diag-machine::before {
  content: ""; position: absolute; inset: -1px; border-radius: inherit; z-index: -1; padding: 1px;
  background: linear-gradient(120deg, transparent 20%, rgba(197,163,90,0.55), transparent 55%);
  background-size: 200% 200%;
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude;
  animation: diagBorderRun 6s linear infinite;
  pointer-events: none; opacity: 0.8;
}
@keyframes diagBorderRun { 0% { background-position: 0% 50%; } 100% { background-position: 200% 50%; } }

/* Opciones: estilo más futurista con icono que reacciona */
.diag-option {
  transition: transform 0.4s cubic-bezier(0.34,1.56,0.36,1), border-color 0.3s, background 0.3s, box-shadow 0.3s !important;
}
.diag-option:hover {
  transform: translateY(-3px) !important;
  box-shadow: 0 18px 40px rgba(92,7,16,0.12) !important;
}
.diag-option .diag-option-icon {
  transition: transform 0.45s cubic-bezier(0.34,1.56,0.36,1), color 0.3s, background 0.3s;
}
.diag-option:hover .diag-option-icon { transform: scale(1.12) rotate(-4deg); }
.diag-option.diag-option-selected .diag-option-icon,
.diag-option[aria-checked="true"] .diag-option-icon { color: var(--gold, #C9A24E); }

/* Brillo recorriendo el botón al hover */
.diag-option::after {
  content: ""; position: absolute; inset: 0; border-radius: inherit; pointer-events: none;
  background: linear-gradient(115deg, transparent 30%, rgba(255,255,255,0.35) 50%, transparent 70%);
  background-size: 220% 100%; background-position: 150% 0; opacity: 0; transition: opacity 0.3s;
}
.diag-option:hover::after { opacity: 1; animation: diagShine 0.9s ease forwards; }
@keyframes diagShine { to { background-position: -80% 0; } }

@media (prefers-reduced-motion: reduce) {
  #diagnostico::before, .diag-machine::before { animation: none; }
  .diag-option:hover::after { animation: none; }
}