/* Blueprint Canvas Styles */
:root {
  --bp-node-width: 220px;
  --bp-node-header-height: 36px;
  --bp-node-padding: 12px;
  --bp-port-size: 12px;
  --bp-connection-color: #5b89cd;
  --bp-node-bg: var(--jp-layout-color0);
  --bp-node-border: var(--jp-border-color1);
  --bp-grid-color: rgba(0, 0, 0, 0.05);
  --bp-grid-size: 20px;
}

/* Blueprint Toolbar */
#blueprint-toolbar {
  display: flex;
  align-items: center;
  height: 48px;
  background-color: var(--jp-layout-color0);
  padding: 0 16px;
  border-bottom: var(--jp-border-width) solid var(--jp-toolbar-border-color);
  position: sticky;
  top: 48px;
  z-index: 99;
  gap: 8px;
}

.bp-toolbar-button {
  background: none;
  border: 1px solid transparent;
  font-size: 13px;
  padding: 8px 12px;
  cursor: pointer;
  color: var(--jp-ui-font-color0);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-speed);
  position: relative;
  overflow: hidden;
  font-family: var(--font-family);
}

.bp-toolbar-button:hover {
  background-color: var(--jp-layout-color2);
  border-color: var(--jp-border-color1);
}

.bp-toolbar-button::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: currentColor;
  opacity: 0;
  transition: opacity 0.2s;
  border-radius: inherit;
}

.bp-toolbar-button:hover::after {
  opacity: 0.1;
}

.bp-toolbar-button i {
  margin-right: 6px;
  font-size: 12px;
}

.bp-toolbar-separator {
  width: 1px;
  height: 24px;
  background-color: var(--jp-border-color1);
  margin: 0 8px;
}

#blueprint-canvas-container {
  position: relative;
  width: 100%;
  height: calc(100vh - 96px);
  overflow: hidden;
  background-color: var(--jp-layout-color1);
}

#blueprint-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

#grid-background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: linear-gradient(
      to right,
      var(--bp-grid-color) 1px,
      transparent 1px
    ),
    linear-gradient(to bottom, var(--bp-grid-color) 1px, transparent 1px);
  background-size: var(--bp-grid-size) var(--bp-grid-size);
  pointer-events: none;
  z-index: 0;
}

#connection-svg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
}

#nodes-container {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

/* Blueprint Nodes */
.bp-node {
  position: absolute;
  width: var(--bp-node-width);
  min-width: 180px;
  min-height: 120px;
  background-color: var(--bp-node-bg);
  border: 1px solid var(--bp-node-border);
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  pointer-events: auto;
  transition: box-shadow 0.2s ease, border-color 0.2s ease;
  z-index: 2;
  overflow: hidden;
}

.bp-node:hover {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.bp-node-header {
  height: var(--bp-node-header-height);
  background-color: var(--jp-layout-color2);
  border-bottom: 1px solid var(--bp-node-border);
  border-radius: 8px 8px 0 0;
  display: flex;
  align-items: center;
  padding: 0 12px;
  user-select: none;
  transition: all var(--transition-speed);
  position: relative;
}

.bp-node-header::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 38px;
  cursor: move;
  z-index: 10;
}

.bp-node-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--jp-ui-font-color0);
  margin-right: auto;
}

.bp-node-type {
  font-size: 11px;
  color: var(--jp-ui-font-color1);
  background-color: var(--jp-layout-color1);
  padding: 2px 6px;
  border-radius: 4px;
}

.bp-node-content {
  padding: var(--bp-node-padding);
  height: calc(100% - var(--bp-node-header-height));
  flex-direction: column;
}

.bp-node-expression {
  width: 100%;
  min-height: 60px;
  padding: 8px;
  border: 1px dashed var(--jp-border-color1);
  border-radius: 4px;
  font-family: var(--font-family);
  font-size: 13px;
  resize: none;
  background: transparent;
  outline: none;
  flex: 1;
}

.bp-node-text {
  width: 100%;
  min-height: 60px;
  padding: 8px;
  border: 1px dashed var(--jp-border-color1);
  border-radius: 4px;
  font-family: var(--font-family);
  font-size: 15px;
  background: transparent;
  outline: none;
  flex: 1;
}

.bp-node-expression:focus,
.bp-node-text:focus {
  border-color: var(--jp-brand-color1);
}

.bp-node-result {
  margin-top: 8px;
  padding: 8px;
  background-color: var(--jp-cell-output-background);
  border-radius: 4px;
  min-height: 40px;
  max-height: 200px;
  font-size: 15px;
  text-align: center;
}

.bp-node-result mjx-container {
  font-size: 1.2rem !important;
}

.bp-node-controls {
  display: flex;
  gap: 6px;
  margin-top: 8px;
}

.bp-node-operation {
  width: 100%;
  padding: 8px 12px;
  font-size: 13px;
  font-family: var(--font-family);
  border: 1px solid var(--jp-border-color1);
  border-radius: 4px;
  background-color: var(--jp-layout-color0);
  color: var(--jp-ui-font-color0);
  cursor: pointer;
  outline: none;
  transition: border-color 0.2s ease;
  margin-bottom: 8px;
}

.bp-node-operation:focus {
  border-color: var(--jp-brand-color1);
}

.bp-operation-inputs {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.bp-node-variable,
.bp-node-limit-point {
  width: 100%;
  padding: 8px 12px;
  font-size: 13px;
  font-family: var(--font-family);
  border: 1px solid var(--jp-border-color1);
  border-radius: 4px;
  background-color: var(--jp-layout-color0);
  color: var(--jp-ui-font-color0);
  outline: none;
  transition: border-color 0.2s ease;
}

.bp-node-variable:focus,
.bp-node-limit-point:focus {
  border-color: var(--jp-brand-color1);
}

.bp-node-limit-point.hidden {
  display: none;
}

/* Ports */
.bp-port {
  position: absolute;
  width: var(--bp-port-size);
  height: var(--bp-port-size);
  border-radius: 50%;
  background-color: var(--jp-border-color2);
  border: 2px solid var(--jp-border-color1);
  cursor: pointer;
  z-index: 2;
  transition: all var(--transition-speed);
  display: flex;
  align-items: center;
  justify-content: center;
}

.bp-port.input {
  left: -6px;
  top: 50%;
  transform: translateY(-50%);
}

.bp-node[data-node-type="result"] .bp-port.input[data-port-index="0"] {
  left: -6px;
  top: calc(50% - 10px);
  transform: translateY(-50%);
}

.bp-node[data-node-type="result"] .bp-port.input[data-port-index="1"] {
  left: -6px;
  top: calc(50% + 20px);
  transform: translateY(-50%);
}

.bp-port.output {
  right: -6px;
  top: 50%;
  transform: translateY(-50%);
}

.bp-port:hover {
  background-color: var(--jp-brand-color1);
  border-color: var(--jp-brand-color0);
  transform: translateY(-50%) scale(1.2);
}

.bp-port.connecting {
  background-color: var(--jp-brand-color0);
  border-color: var(--jp-brand-color1);
  box-shadow: 0 0 8px rgba(91, 137, 205, 0.6);
}

.bp-port-label {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  background-color: var(--jp-layout-color0);
  border: 1px solid var(--jp-border-color1);
  border-radius: 4px;
  padding: 2px 6px;
  font-size: 10px;
  color: var(--jp-ui-font-color2);
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--transition-speed);
}

.bp-port:hover .bp-port-label {
  opacity: 1;
}

/* Resizer */
.bp-node-resizer {
  position: absolute;
  width: 12px;
  height: 12px;
  bottom: -6px;
  right: -6px;
  background-color: var(--jp-layout-color2);
  border: 1px solid var(--jp-border-color1);
  border-radius: 2px;
  cursor: nwse-resize;
  z-index: 20;
  transition: all var(--transition-speed);
  display: flex;
  align-items: center;
  justify-content: center;
}

.bp-node-resizer::after {
  content: "";
  width: 6px;
  height: 6px;
  border-right: 1px solid var(--jp-ui-font-color2);
  border-bottom: 1px solid var(--jp-ui-font-color2);
  opacity: 0.6;
}

.bp-node-resizer:hover {
  background-color: var(--jp-brand-color1);
  transform: scale(1.1);
}

.bp-node-resizer:hover::after {
  border-right: 1px solid white;
  border-bottom: 1px solid white;
  opacity: 1;
}

/* Connections */
.connection-path {
  stroke: var(--bp-connection-color);
  stroke-width: 2;
  fill: none;
  pointer-events: stroke;
  transition: stroke var(--transition-speed);
}

.connection-path:hover {
  stroke: var(--jp-brand-color0);
  stroke-width: 3;
}

.temp-connection {
  fill: none;
  stroke: var(--bp-connection-color);
  stroke-width: 2;
  stroke-dasharray: 5, 5;
  pointer-events: none;
}

/* Context Menu */
.context-menu {
  position: fixed;
  background-color: var(--jp-layout-color0);
  border: 1px solid var(--jp-border-color1);
  border-radius: 6px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  padding: 4px 0;
  z-index: 1000;
  display: none;
  min-width: 150px;
}

.context-menu-item {
  padding: 8px 12px;
  font-size: 13px;
  color: var(--jp-ui-font-color0);
  cursor: pointer;
  display: flex;
  align-items: center;
  transition: background-color 0.2s ease;
}

.context-menu-item:hover {
  background-color: var(--jp-layout-color2);
}

.context-menu-item i {
  margin-right: 8px;
  width: 14px;
  text-align: center;
}

.context-menu-separator {
  height: 1px;
  background-color: var(--jp-border-color1);
  margin: 4px 8px;
}