.ifw-viewport {
  position: relative;
  width: 100%;
  height: 100%;
  min-height: 420px;
  overflow: auto;
  overscroll-behavior: contain;
  background-color: #f6f7f9;
  background-image: radial-gradient(#cdd2da 1px, transparent 1px);
  background-size: 20px 20px;
  outline: none;
  user-select: none;
}

.ifw-viewport.is-panning { cursor: grabbing; }
.ifw-scroll-sizer { position: relative; }
.ifw-world {
  position: absolute;
  inset: 0 auto auto 0;
  transform-origin: 0 0;
}

.ifw-connections-layer,
.ifw-nodes-layer,
.ifw-overlay-layer {
  position: absolute;
  inset: 0;
}
.ifw-connections-layer { z-index: 1; overflow: visible; }
.ifw-nodes-layer { z-index: 2; pointer-events: none; }
.ifw-overlay-layer { z-index: 3; overflow: visible; pointer-events: none; }
.ifw-nodes-origin { transform-origin: 0 0; }

.ifw-node {
  pointer-events: all;
  cursor: grab;
}
.ifw-node:active { cursor: grabbing; }
.ifw-node-body {
  fill: #fff;
  stroke: #98a2b3;
  stroke-width: 1;
  vector-effect: non-scaling-stroke;
  filter: drop-shadow(0 2px 3px rgba(16, 24, 40, .14));
}
.ifw-node.is-selected > .ifw-node-body { stroke: #2f6fed; stroke-width: 3; }
.ifw-node.is-unknown > .ifw-node-body { stroke-dasharray: 5 4; }
.ifw-node-header { fill: #f9fafb; stroke: none; }
.ifw-node-accent { pointer-events: none; }
.ifw-node-icon { color: #344054; pointer-events: none; overflow: visible; }
.ifw-node-title {
  fill: #101828;
  font: 600 12px system-ui, sans-serif;
  dominant-baseline: middle;
  pointer-events: none;
}
.ifw-node-type {
  fill: #667085;
  font: 11px system-ui, sans-serif;
  pointer-events: none;
}

.ifw-port {
  fill: #667085;
  stroke: #fff;
  stroke-width: 2;
  vector-effect: non-scaling-stroke;
  cursor: crosshair;
  pointer-events: all;
}
.ifw-port.is-output { fill: #2f6fed; }
.ifw-port.is-input { fill: #667085; }
.ifw-port.is-magnet { stroke: #2f6fed; stroke-width: 5; }

.ifw-edge {
  fill: none;
  stroke-width: 2;
  vector-effect: non-scaling-stroke;
  pointer-events: none;
}
.ifw-edge.is-selected { stroke-width: 3; }
.ifw-edge-hit {
  fill: none;
  stroke: transparent;
  stroke-width: 12;
  vector-effect: non-scaling-stroke;
  pointer-events: stroke;
  cursor: pointer;
}
.ifw-edge-arrow { pointer-events: none; }
.ifw-edge-label {
  fill: #344054;
  stroke: #f6f7f9;
  stroke-width: 4px;
  paint-order: stroke;
  font: 11px system-ui, sans-serif;
  text-anchor: middle;
  pointer-events: none;
}
.ifw-connection-preview {
  fill: none;
  stroke: #667085;
  stroke-width: 2;
  stroke-dasharray: 7 5;
  vector-effect: non-scaling-stroke;
  pointer-events: none;
}
.ifw-waypoint-handle,
.ifw-endpoint-handle {
  pointer-events: all;
  cursor: move;
  vector-effect: non-scaling-stroke;
}
.ifw-waypoint-handle { fill: #fff; stroke: #2f6fed; stroke-width: 2; }
.ifw-waypoint-handle.is-selected { fill: #2f6fed; }
.ifw-endpoint-handle { fill: #fff; stroke: #344054; stroke-width: 2; cursor: crosshair; }

.ifw-palette-section { margin: 0 0 12px; }
.ifw-palette-category { margin: 0 0 5px; color: #667085; font: 600 11px system-ui, sans-serif; text-transform: uppercase; }
.ifw-palette-item {
  display: block;
  width: 100%;
  margin: 3px 0;
  padding: 7px 9px;
  border: 1px solid #d0d5dd;
  border-radius: 6px;
  background: #fff;
  color: #344054;
  text-align: left;
  cursor: grab;
}
.ifw-palette-ghost {
  position: fixed;
  z-index: 10020;
  pointer-events: none;
  padding: 7px 10px;
  border: 1px solid #98a2b3;
  border-radius: 6px;
  background: rgba(255,255,255,.94);
  box-shadow: 0 5px 14px rgba(16,24,40,.18);
  font: 12px system-ui, sans-serif;
}

.ifw-properties-title { margin: 0 0 12px; font: 700 14px system-ui, sans-serif; }
.ifw-properties-empty, .ifw-properties-warning { color: #667085; font: 12px/1.4 system-ui, sans-serif; }
.ifw-property-field { margin: 0 0 11px; }
.ifw-property-label { display: block; margin: 0 0 4px; color: #344054; font: 600 11px system-ui, sans-serif; }
.ifw-property-description { margin-top: 3px; color: #98a2b3; font: 10px/1.35 system-ui, sans-serif; }
.ifw-property-input {
  box-sizing: border-box;
  width: 100%;
  min-width: 0;
  padding: 6px 7px;
  border: 1px solid #d0d5dd;
  border-radius: 5px;
  background: #fff;
  font: 12px system-ui, sans-serif;
}
textarea.ifw-property-input { resize: vertical; }
.ifw-property-json { min-height: 110px; font-family: ui-monospace, SFMono-Regular, Consolas, monospace; }
.ifw-property-check { color: #344054; font: 12px system-ui, sans-serif; }
.ifw-property-file { display: grid; grid-template-columns: 1fr auto; gap: 4px; }
.ifw-property-file-button, .ifw-option-button, .ifw-option-add { border: 1px solid #d0d5dd; border-radius: 5px; background: #fff; cursor: pointer; }
.ifw-property-file-button { width: 34px; }
.ifw-option-row { display: grid; grid-template-columns: 1fr 1fr 27px 27px 27px; gap: 3px; margin-bottom: 4px; }
.ifw-option-button { padding: 0; }
.ifw-option-add { padding: 5px 8px; }

.ifw-diagnostic { margin: 4px 0; padding: 5px 7px; border-radius: 5px; font: 11px/1.35 system-ui, sans-serif; }
.ifw-diagnostic.is-error { background: #fee4e2; color: #912018; }
.ifw-diagnostic.is-aviso { background: #fef0c7; color: #7a2e0e; }
.ifw-diagnostic.is-ok { background: #dcfae6; color: #05603a; }

.ifw-context-menu {
  position: fixed;
  z-index: 10030;
  min-width: 155px;
  padding: 4px;
  border: 1px solid #d0d5dd;
  border-radius: 7px;
  background: #fff;
  box-shadow: 0 8px 24px rgba(16,24,40,.18);
}
.ifw-context-menu-item {
  display: block;
  width: 100%;
  padding: 7px 9px;
  border: 0;
  border-radius: 4px;
  background: transparent;
  text-align: left;
  cursor: pointer;
}
.ifw-context-menu-item:hover { background: #f2f4f7; }
.ifw-error-toast {
  position: fixed;
  left: 50%;
  bottom: 24px;
  z-index: 10040;
  max-width: min(520px, 80vw);
  transform: translateX(-50%);
  padding: 9px 13px;
  border-radius: 7px;
  background: #912018;
  color: #fff;
  box-shadow: 0 6px 20px rgba(16,24,40,.22);
  font: 12px system-ui, sans-serif;
}

.ifw-properties-validation { margin-top: 10px; }
.ifw-properties-node-error {
  margin: 4px 0;
  padding: 5px 7px;
  border-radius: 5px;
  background: #fee4e2;
  color: #912018;
  font: 11px/1.35 system-ui, sans-serif;
}

.ifw-message-text-editor,
.ifw-operand-editor,
.ifw-operand-body {
  display: grid;
  gap: 5px;
}
.ifw-message-toolbar {
  display: flex;
  gap: 4px;
}
.ifw-message-tool {
  min-width: 28px;
  padding: 3px 7px;
  border: 1px solid #d0d5dd;
  border-radius: 5px;
  background: #fff;
  color: #344054;
  cursor: pointer;
  font: 600 11px system-ui, sans-serif;
}
.ifw-message-tool:hover { background: #f2f4f7; }
.ifw-operand-mode { margin-bottom: 2px; }
.ifw-operand-body > .ifw-property-input + .ifw-property-input { margin-top: 1px; }