/* =====================================================================
   RED DE MEMORIA — Vista 3D (Estética Cósmica)
   ===================================================================== */

html, body {
  overflow: hidden;
  height: 100%;
}

#lienzo {
  position: fixed;
  inset: 0;
  z-index: 2;
}

#lienzo canvas {
  display: block;
}

#rotulos {
  position: fixed;
  inset: 0;
  z-index: 3;
  pointer-events: none;
}

.rotulo {
  position: absolute;
  transform: translate(-50%, -50%);
  font-family: var(--display);
  font-size: 11.5px;
  line-height: 1.3;
  color: #46536b;
  text-align: center;
  max-width: 170px;
  text-shadow: 0 1px 3px rgba(255, 255, 255, 0.9), 0 0 14px rgba(255, 255, 255, 0.8);
  pointer-events: none;
  transition: opacity 0.25s ease;
}

.rotulo .grupo {
  display: block;
  font-family: var(--mono);
  font-size: 8.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 2px;
}

/* ---------- HUD SUPERIOR ---------- */

#hud-arriba {
  position: fixed;
  top: 16px;
  left: 0;
  right: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  pointer-events: none;
  gap: 16px;
}

.hud-izquierda {
  display: flex;
  align-items: center;
  gap: 12px;
  pointer-events: auto;
}

#marca {
  font-family: var(--display);
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

#marca .rn { color: var(--cosmic); }
#marca .ex { color: var(--soft); font-size: 13px; margin-left: 4px; font-weight: 500; }

/* Filtros por Rama SIN BARRA DE DESPLAZAMIENTO VISIBLE */
.hud-filtros {
  display: flex;
  align-items: center;
  gap: 6px;
  pointer-events: auto;
  background: rgba(255, 255, 255, 0.75);
  border: 1px solid var(--glass-edge);
  border-radius: 999px;
  padding: 4px 6px;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 4px 16px -8px rgba(15, 23, 42, 0.15);
  max-width: 60%;
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.hud-filtros::-webkit-scrollbar {
  display: none;
}

.filtro-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  border-radius: 999px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--soft);
  background: transparent;
  border: 1px solid transparent;
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.2s ease;
}

.filtro-btn:hover {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.9);
}

.filtro-btn.activo {
  background: rgba(255, 255, 255, 0.95);
  color: var(--ink);
  border-color: var(--glass-edge);
  box-shadow: 0 2px 8px -2px rgba(15, 23, 42, 0.12);
}

.punto-cat {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  flex-shrink: 0;
}

.hud-derecha {
  display: flex;
  align-items: center;
  gap: 10px;
  pointer-events: auto;
}

#contador {
  position: fixed;
  left: 24px;
  bottom: 22px;
  z-index: 20;
  font-size: 11px;
}

/* ---------- Mensaje de Red Vacía ---------- */

#sin-nodos {
  position: fixed;
  inset: 0;
  z-index: 15;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

#sin-nodos[hidden], #detalle[hidden] {
  display: none !important;
}

.sin-nodos-caja {
  max-width: 480px;
  text-align: center;
  background: linear-gradient(155deg, rgba(255, 255, 255, 0.95), rgba(255, 255, 255, 0.75));
  border: 1px solid var(--glass-edge);
  border-radius: 24px;
  padding: 36px 30px;
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  box-shadow: 0 24px 60px -20px rgba(15, 23, 42, 0.35);
}

.icono-vacio {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: rgba(74, 157, 255, 0.12);
  color: var(--cosmic);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
}

.sin-nodos-caja .titulo-m {
  color: var(--ink);
  margin: 0 0 10px;
}

/* ---------- Inspector Lateral de Nodo ---------- */

#detalle {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 25;
  width: min(360px, calc(100vw - 48px));
  max-height: 80vh;
  overflow-y: auto;
  padding: 22px 24px;
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid var(--glass-edge);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  box-shadow: 0 30px 70px -30px rgba(15, 23, 42, 0.4);
  animation: entra 0.3s cubic-bezier(0.16, 1, 0.3, 1) both;
}

@keyframes entra {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}

.detalle-cab {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 12px;
  gap: 10px;
}

.pils {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.btn-cerrar {
  background: none;
  border: 0;
  color: var(--muted);
  font-size: 22px;
  cursor: pointer;
  line-height: 1;
}

.detalle-titulo {
  font-family: var(--display);
  font-size: 17px;
  font-weight: 700;
  color: var(--ink);
  margin: 0 0 12px;
  line-height: 1.3;
}

.detalle-seccion {
  margin-bottom: 12px;
}

.detalle-seccion-tit {
  display: block;
  font-family: var(--mono);
  font-size: 9.5px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--soft);
  margin-bottom: 4px;
}

.detalle-texto {
  font-size: 14px;
  line-height: 1.55;
  color: var(--ink);
  margin: 0;
  background: rgba(255, 255, 255, 0.7);
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid var(--glass-edge);
}

.detalle-orig {
  font-size: 12.5px;
  line-height: 1.5;
  color: var(--soft);
  margin: 0;
  font-style: italic;
  padding-left: 8px;
  border-left: 2px solid var(--glass-edge);
}

.detalle-conexiones {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-top: 4px;
}

.con-item {
  font-size: 12px;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.85);
  border: 1px solid var(--glass-edge);
  border-radius: 8px;
  padding: 6px 10px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.con-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  flex-shrink: 0;
}

.con-rel {
  font-size: 10.5px;
  color: var(--muted);
  font-family: var(--mono);
}

.sin-con {
  font-size: 11.5px;
  color: var(--muted);
  font-style: italic;
}

.detalle-meta {
  font-size: 11px;
  color: var(--muted);
  font-family: var(--mono);
  margin: 12px 0 14px;
  padding-top: 10px;
  border-top: 1px solid rgba(15, 23, 42, 0.06);
}

.detalle-acciones {
  display: flex;
  justify-content: flex-end;
}

@media (max-width: 768px) {
  .hud-filtros { display: none; }
  #hud-arriba { padding: 0 16px; }
  #detalle { width: calc(100vw - 32px); right: 16px; bottom: 16px; }
}