/* Visual CIDR & Subnet Overlap Matrix Styles */

.cidr-visual-workspace {
  margin-top: 2rem;
  background: var(--surface-card, #1e293b);
  border: 1px solid #334155;
  border-radius: 0.75rem;
  padding: 1.5rem;
  box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.3), 0 8px 10px -6px rgba(0, 0, 0, 0.3);
}

.cidr-tabs-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  border-bottom: 1px solid #334155;
  padding-bottom: 0.75rem;
  margin-bottom: 1.5rem;
}

.cidr-tab-btn {
  background: #0f172a;
  color: #94a3b8;
  border: 1px solid #334155;
  padding: 0.5rem 1rem;
  border-radius: 0.5rem;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: all 0.2s ease-in-out;
}

.cidr-tab-btn:hover {
  background: #1e293b;
  color: #f8fafc;
  border-color: #475569;
}

.cidr-tab-btn.active {
  background: #2563eb;
  color: #ffffff;
  border-color: #3b82f6;
  box-shadow: 0 0 12px rgba(59, 130, 246, 0.4);
}

.cidr-tab-pane {
  display: none;
  animation: fadeInPane 0.25s ease-in-out;
}

.cidr-tab-pane.active {
  display: block;
}

@keyframes fadeInPane {
  from {
    opacity: 0;
    transform: translateY(4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Legend */
.cidr-matrix-legend {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
  background: #0f172a;
  padding: 0.75rem 1rem;
  border-radius: 0.5rem;
  border: 1px solid #334155;
  margin-bottom: 1.25rem;
  font-size: 0.85rem;
}

.legend-item {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: #cbd5e1;
}

.legend-chip {
  width: 12px;
  height: 12px;
  border-radius: 3px;
  display: inline-block;
}

.legend-chip.assigned { background: #3b82f6; }
.legend-chip.collision { background: #ef4444; }
.legend-chip.containment { background: #f59e0b; }
.legend-chip.recommended { background: #10b981; }
.legend-chip.disjoint { background: #059669; }

/* 2D Space Treemap & Proportional Map */
.cidr-space-map {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.cidr-allocation-bar-wrapper {
  background: #0f172a;
  border: 1px solid #334155;
  border-radius: 0.5rem;
  padding: 1rem;
}

.cidr-allocation-bar-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.75rem;
  font-size: 0.85rem;
  color: #94a3b8;
}

.cidr-allocation-bar {
  display: flex;
  width: 100%;
  height: 38px;
  background: #1e293b;
  border-radius: 0.375rem;
  overflow: hidden;
  border: 1px solid #334155;
  gap: 2px;
}

.cidr-bar-segment {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-family: monospace;
  font-weight: bold;
  color: #ffffff;
  padding: 0 4px;
  text-overflow: ellipsis;
  overflow: hidden;
  white-space: nowrap;
  cursor: pointer;
  transition: filter 0.15s ease, transform 0.15s ease;
  position: relative;
}

.cidr-bar-segment:hover {
  filter: brightness(1.2);
  z-index: 2;
}

.cidr-bar-segment.assigned {
  background: linear-gradient(135deg, #1d4ed8, #2563eb);
}

.cidr-bar-segment.collision {
  background: repeating-linear-gradient(
    -45deg,
    #dc2626,
    #dc2626 8px,
    #991b1b 8px,
    #991b1b 16px
  );
  animation: collisionPulse 2s infinite ease-in-out;
}

.cidr-bar-segment.recommended_free {
  background: linear-gradient(135deg, #059669, #10b981);
}

@keyframes collisionPulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.85; }
}

/* 2D Space Tiles Grid */
.cidr-treemap-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1rem;
}

.cidr-map-card {
  background: #0f172a;
  border: 1px solid #334155;
  border-radius: 0.5rem;
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  transition: transform 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease;
  position: relative;
}

.cidr-map-card:hover {
  transform: translateY(-2px);
  border-color: #64748b;
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.4);
}

.cidr-map-card.assigned {
  border-left: 4px solid #3b82f6;
}

.cidr-map-card.collision {
  border-left: 4px solid #ef4444;
  background: linear-gradient(180deg, rgba(239, 68, 68, 0.08) 0%, #0f172a 100%);
}

.cidr-map-card.recommended_free {
  border-left: 4px solid #10b981;
  background: linear-gradient(180deg, rgba(16, 185, 129, 0.08) 0%, #0f172a 100%);
}

.cidr-map-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.cidr-map-title {
  font-family: monospace;
  font-size: 1.1rem;
  font-weight: bold;
  color: #f8fafc;
}

.cidr-badge {
  padding: 0.2rem 0.5rem;
  border-radius: 0.25rem;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
}

.cidr-badge.assigned {
  background: #1e3a8a;
  color: #93c5fd;
}

.cidr-badge.collision {
  background: #7f1d1d;
  color: #fca5a5;
}

.cidr-badge.recommended_free {
  background: #064e3b;
  color: #6ee7b7;
}

.cidr-map-meta {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.25rem;
  font-size: 0.8rem;
  color: #94a3b8;
}

.cidr-map-meta code {
  color: #e2e8f0;
  background: #1e293b;
  padding: 0.1rem 0.3rem;
  border-radius: 0.25rem;
}

.cidr-collision-alert {
  margin-top: 0.5rem;
  padding: 0.4rem 0.6rem;
  background: rgba(239, 68, 68, 0.15);
  border: 1px solid rgba(239, 68, 68, 0.3);
  border-radius: 0.375rem;
  font-size: 0.75rem;
  color: #fca5a5;
}

/* N x N Overlap Cross-Matrix Table */
.cidr-matrix-table-wrapper {
  overflow-x: auto;
  background: #0f172a;
  border: 1px solid #334155;
  border-radius: 0.5rem;
  padding: 1rem;
}

.cidr-matrix-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 4px;
  font-family: monospace;
  font-size: 0.85rem;
}

.cidr-matrix-table th {
  background: #1e293b;
  color: #cbd5e1;
  padding: 0.6rem 0.8rem;
  font-weight: 600;
  text-align: center;
  border-radius: 0.375rem;
  white-space: nowrap;
}

.cidr-matrix-table th.row-label {
  text-align: left;
  background: #1e293b;
}

.matrix-cell {
  padding: 0.6rem 0.8rem;
  text-align: center;
  border-radius: 0.375rem;
  cursor: pointer;
  transition: all 0.15s ease-in-out;
  position: relative;
  font-size: 0.8rem;
  font-weight: 600;
}

.matrix-cell:hover {
  transform: scale(1.05);
  z-index: 3;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
}

.matrix-cell.status-self {
  background: #1e293b;
  color: #94a3b8;
  border: 1px dashed #475569;
}

.matrix-cell.status-disjoint {
  background: rgba(16, 185, 129, 0.15);
  color: #34d399;
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.matrix-cell.status-containment {
  background: rgba(245, 158, 11, 0.2);
  color: #fbbf24;
  border: 1px solid rgba(245, 158, 11, 0.4);
}

.matrix-cell.status-collision {
  background: rgba(239, 68, 68, 0.25);
  color: #f87171;
  border: 1px solid rgba(239, 68, 68, 0.5);
  font-weight: bold;
}

.matrix-cell-info {
  margin-top: 1rem;
  padding: 0.75rem 1rem;
  background: #1e293b;
  border: 1px solid #334155;
  border-radius: 0.5rem;
  font-size: 0.85rem;
  color: #e2e8f0;
}

/* Subnet Partition Tree */
.cidr-tree-view {
  background: #0f172a;
  border: 1px solid #334155;
  border-radius: 0.5rem;
  padding: 1.5rem;
}

.tree-node {
  margin-bottom: 1rem;
}

.tree-card {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  background: #1e293b;
  border: 1px solid #334155;
  padding: 0.6rem 1rem;
  border-radius: 0.5rem;
  font-family: monospace;
}

.tree-card.root {
  border-color: #3b82f6;
  background: #1e3a8a33;
}

.tree-card.child {
  border-color: #475569;
}

.tree-card.recommended {
  border-color: #10b981;
  background: #064e3b33;
}

.tree-children {
  margin-left: 2rem;
  padding-left: 1rem;
  border-left: 2px dashed #334155;
  margin-top: 0.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

@media (max-width: 768px) {
  .cidr-allocation-bar {
    height: 28px;
  }
  .cidr-matrix-table th, .matrix-cell {
    padding: 0.4rem 0.5rem;
    font-size: 0.75rem;
  }
}