frontend/src/components/KnowledgeGraph.css

/* KnowledgeGraph.css - Premium Sci-Fi 3D Semantic Mesh styling */

.graph-stage {
  display: flex;
  flex-direction: column;
  height: 100%;
  position: relative;
  gap: 10px;
  padding: 0 16px 16px 16px;
  overflow: hidden;
}

.graph-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

.graph-title-block {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.graph-select {
  background: rgba(255, 255, 255, 0.6);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.8);
  border-radius: 100px;
  padding: 0 14px;
  height: 32px;
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  color: #1a1a1a;
  font-weight: 700;
  box-shadow: 0 4px 15px rgba(0,0,0,0.02);
}

.graph-select .material-icons {
  color: #06b6d4;
  font-size: 16px;
}

/* DB Status Badges */
.db-status-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: 100px;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border: 1px solid transparent;
}

.db-status-badge.warning {
  background: rgba(245, 158, 11, 0.08);
  color: #d97706;
  border-color: rgba(245, 158, 11, 0.2);
}

.db-status-badge.success {
  background: rgba(16, 185, 129, 0.08);
  color: #059669;
  border-color: rgba(16, 185, 129, 0.2);
}

.db-status-badge .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: currentColor;
}

/* Actions */
.graph-actions {
  display: flex;
  gap: 10px;
}

.graph-icon-button {
  width: 32px;
  height: 32px;
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.9);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #555;
  transition: all 0.2s;
  box-shadow: 0 2px 8px rgba(0,0,0,0.02);
  cursor: pointer;
}

.graph-icon-button .material-icons {
  font-size: 16px;
}

.graph-icon-button:hover {
  transform: translateY(-1px);
  background: white;
  color: #ff6b35;
  box-shadow: 0 4px 12px rgba(255, 107, 53, 0.15);
}

/* ── Network Container ── */
.graph-network-container {
  flex: 1;
  position: relative;
  border-radius: 24px;
  overflow: hidden;
  box-shadow: var(--shadow-md), inset 0 0 80px rgba(255, 255, 255, 0.3);
  border: 1px solid rgba(255, 255, 255, 0.8);
  background: rgba(255, 255, 255, 0.35);
  backdrop-filter: blur(25px);
  padding-left: 160px; /* Shifted slightly left compared to before to balance the canvas center */
  box-sizing: border-box;
}

.brain-silhouette {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: min(85vw, 550px);
  height: min(85vw, 550px);
  pointer-events: none;
  z-index: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  opacity: 0.85;
}

/* Tooltip micro-HUD */
.graph-tooltip {
  background: rgba(255, 255, 255, 0.96) !important;
  border: 1px solid rgba(255, 107, 53, 0.2) !important;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05) !important;
  border-radius: 10px !important;
  padding: 10px 14px !important;
  color: #1e293b !important;
  font-family: var(--font-mono), monospace !important;
  font-size: 0.75rem !important;
  pointer-events: none;
}

.graph-tooltip strong {
  display: block;
  font-size: 0.8rem;
  color: #ff6b35;
  margin-bottom: 6px;
  border-bottom: 1px solid rgba(0,0,0,0.06);
  padding-bottom: 4px;
}

.tooltip-sub {
  color: #64748b;
  margin-top: 2px;
}

/* Loading HUD overlay */
.graph-loading {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  color: #ff6b35;
  font-family: var(--font-mono), monospace;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  z-index: 10;
  pointer-events: none;
  background: rgba(255, 255, 255, 0.85);
  padding: 24px 36px;
  border-radius: 16px;
  border: 1px solid rgba(255, 107, 53, 0.2);
  backdrop-filter: blur(10px);
}

.graph-loading .material-icons {
  font-size: 32px;
}

/* Legend - Floating Absolutely in the 3D Container */
.graph-legend {
  position: absolute;
  bottom: 16px;
  left: calc(50% + 80px); /* Re-centered perfectly relative to the 160px shift */
  transform: translateX(-50%);
  display: flex;
  gap: 20px;
  justify-content: center;
  background: rgba(255, 255, 255, 0.75);
  backdrop-filter: blur(25px);
  border: 1px solid rgba(255, 255, 255, 0.8);
  padding: 8px 24px;
  border-radius: 100px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.03);
  z-index: 100;
  pointer-events: auto;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.65rem;
  color: #555;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.legend-item::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  box-shadow: 0 0 8px currentColor;
}

.legend-item.core { color: #ff6b35; }
.legend-item.core::before { background-color: #ff6b35; }

.legend-item.high { color: #ff6b35; }
.legend-item.high::before { background-color: #ff6b35; }

.legend-item.medium { color: #ff9c7a; }
.legend-item.medium::before { background-color: #ff9c7a; }

.legend-item.entity { color: #a3a3a3; }
.legend-item.entity::before { background-color: #a3a3a3; }

/* ── Live Telemetry HUD Overlay ── */
.graph-hud-overlay {
  position: absolute;
  top: 16px;
  left: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  z-index: 100;
  pointer-events: none; /* Let clicks pass through to 3D graph */
}

.hud-panel {
  background: rgba(255, 255, 255, 0.75);
  backdrop-filter: blur(25px);
  border: 1px solid rgba(255, 255, 255, 0.8);
  border-radius: 16px;
  padding: 12px 14px;
  width: 190px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.03);
  pointer-events: auto; /* Re-enable clicks for panel contents */
  display: flex;
  flex-direction: column;
  gap: 8px;
  animation: fadeIn 0.4s ease-out;
}

.hud-header {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.7rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #ff6b35;
  border-bottom: 1px solid rgba(0,0,0,0.04);
  padding-bottom: 6px;
}

.hud-header .material-icons {
  font-size: 14px;
}

.hud-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.7rem;
}

.hud-label {
  color: #64748b;
  font-weight: 600;
}

.hud-value {
  color: #1e293b;
  font-weight: 800;
  font-family: var(--font-mono), monospace;
}

.hud-value.status-glow {
  color: #10b981;
  background: rgba(16, 185, 129, 0.1);
  padding: 2px 6px;
  border-radius: 6px;
  font-weight: 800;
  text-shadow: 0 0 8px rgba(16, 185, 129, 0.2);
}

.hud-entity-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.hud-entity-row {
  display: flex;
  align-items: center;
  font-size: 0.65rem;
  gap: 4px;
}

.entity-rank {
  color: #94a3b8;
  font-weight: 700;
  width: 18px;
}

.entity-name {
  color: #1e293b;
  font-weight: 700;
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.entity-connections {
  color: #ff6b35;
  font-weight: 800;
  font-family: var(--font-mono), monospace;
  background: rgba(255, 107, 53, 0.08);
  padding: 1px 4px;
  border-radius: 4px;
}

/* Pulse animation utility */
@keyframes pulse-light {
  0% { opacity: 1; }
  50% { opacity: 0.4; }
  100% { opacity: 1; }
}

.pulse {
  animation: pulse-light 1.5s infinite ease-in-out;
}

/* ── Holographic Scene Tooltips (Hover Outlined Style) ── */
.graph-tooltip {
  background: transparent !important;
  border: none !important;
  box-shadow: none !important;
  font-family: 'Inter', sans-serif !important;
  font-weight: 800 !important;
  text-transform: uppercase !important;
  pointer-events: none !important;
  text-shadow: 
    -3px -3px 0 #fff, 
     3px -3px 0 #fff, 
    -3px  3px 0 #fff, 
     3px  3px 0 #fff,
    -3px  0px 0 #fff,
     3px  0px 0 #fff,
     0px -3px 0 #fff,
     0px  3px 0 #fff !important;
  padding: 0 !important;
}

.graph-tooltip strong {
  font-weight: 800 !important;
}

/* ── Responsive Overrides ── */
@media (max-width: 1024px) {
  .graph-stage {
    padding: 0 0 16px 0 !important;
  }
  
  .graph-toolbar {
    flex-direction: column !important;
    align-items: flex-start !important;
    padding: 0 16px !important;
  }
  
  .graph-actions {
    width: 100% !important;
    justify-content: flex-start !important;
    flex-wrap: wrap !important;
  }
  
  .graph-network-container {
    padding-left: 0 !important; /* Remove shifted padding */
    border-radius: 16px !important;
    height: 460px !important;
    min-height: 460px !important;
    width: 100% !important;
    flex: none !important;
  }
  
  .graph-hud-overlay {
    position: relative !important;
    top: auto !important;
    left: auto !important;
    padding: 16px !important;
    display: grid !important;
    grid-template-columns: 1fr 1fr !important;
    gap: 16px !important;
  }
  
  .hud-panel {
    width: 100% !important;
    box-sizing: border-box !important;
  }
  
  /* On very small screens stack the HUD panels */
  @media (max-width: 600px) {
    .graph-hud-overlay {
      grid-template-columns: 1fr !important;
    }
  }
}