/* =============================================
   Flow Editor — Visual Node Editor
   ============================================= */

/* Layout */
.flow-editor-wrap {
  display: flex;
  flex-direction: column;
  height: calc(100vh - 112px);
  margin: -24px;
  overflow: hidden;
}

/* Top Toolbar */
.fe-toolbar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
  flex-wrap: wrap;
}
.fe-toolbar .fe-title {
  font-weight: 600;
  font-size: 15px;
  margin-right: auto;
  display: flex;
  align-items: center;
  gap: 8px;
}
.fe-toolbar .fe-title i { color: var(--accent); }

/* Node Palette */
.fe-palette {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}
.fe-palette-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text-secondary);
  font-size: 12px;
  font-family: var(--font);
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}
.fe-palette-btn:hover {
  border-color: var(--accent);
  color: var(--text-primary);
  background: var(--bg-card-hover);
}
.fe-palette-btn i { font-size: 13px; }

/* Canvas */
.fe-canvas-wrap {
  flex: 1;
  position: relative;
  overflow: auto;
  background:
    radial-gradient(circle, var(--border) 1px, transparent 1px);
  background-size: 24px 24px;
  cursor: grab;
}
.fe-canvas-wrap.grabbing { cursor: grabbing; }

.fe-canvas {
  position: relative;
  width: 4000px;
  height: 3000px;
  min-width: 100%;
  min-height: 100%;
}

/* SVG Connections Layer */
.fe-svg {
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
}
.fe-svg path {
  fill: none;
  stroke: var(--border);
  stroke-width: 2;
  pointer-events: stroke;
  cursor: pointer;
  transition: stroke 0.15s;
}
.fe-svg path:hover {
  stroke: var(--red);
  stroke-width: 3;
}
.fe-svg path.active {
  stroke: var(--accent);
  stroke-width: 2.5;
}
.fe-svg .temp-line {
  stroke: var(--accent);
  stroke-width: 2;
  stroke-dasharray: 6 4;
  pointer-events: none;
}
.fe-svg .arrow-marker {
  fill: var(--border);
}

/* Node */
.fe-node {
  position: absolute;
  min-width: 180px;
  max-width: 260px;
  background: var(--bg-card);
  border: 2px solid var(--border);
  border-radius: 12px;
  z-index: 10;
  cursor: move;
  user-select: none;
  transition: box-shadow 0.15s, border-color 0.15s;
}
.fe-node:hover {
  border-color: rgba(99,102,241,0.5);
  box-shadow: 0 4px 20px rgba(0,0,0,0.3);
}
.fe-node.selected {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow), 0 4px 20px rgba(0,0,0,0.3);
}
.fe-node.is-entry {
  border-color: var(--green);
}
.fe-node.is-entry .fe-node-header {
  background: var(--green);
}

/* Node Header */
.fe-node-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 10px 10px 0 0;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: white;
}
.fe-node-header i { font-size: 12px; }

/* Node type colors */
.fe-node[data-type="text"] .fe-node-header { background: var(--blue); }
.fe-node[data-type="buttons"] .fe-node-header { background: var(--accent); }
.fe-node[data-type="media"] .fe-node-header { background: var(--orange); }
.fe-node[data-type="ai"] .fe-node-header { background: var(--purple); }
.fe-node[data-type="human"] .fe-node-header { background: var(--yellow); }
.fe-node[data-type="forward"] .fe-node-header { background: #06b6d4; }
.fe-node[data-type="webhook"] .fe-node-header { background: #ec4899; }
.fe-node[data-type="condition"] .fe-node-header { background: var(--orange); }
.fe-node[data-type="delay"] .fe-node-header { background: var(--text-muted); }

/* Node Body */
.fe-node-body {
  padding: 10px 12px;
  font-size: 12px;
  color: var(--text-secondary);
  line-height: 1.4;
  max-height: 80px;
  overflow: hidden;
  word-break: break-word;
}

/* Node Footer (buttons preview) */
.fe-node-footer {
  padding: 4px 12px 8px;
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}
.fe-node-footer .fe-btn-preview {
  font-size: 10px;
  padding: 2px 8px;
  border-radius: 4px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  color: var(--text-muted);
}

/* Node Actions */
.fe-node-actions {
  position: absolute;
  top: -10px;
  right: -10px;
  display: none;
  gap: 4px;
  z-index: 20;
}
.fe-node:hover .fe-node-actions,
.fe-node.selected .fe-node-actions {
  display: flex;
}
.fe-node-actions button {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text-secondary);
  font-size: 11px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}
.fe-node-actions button:hover {
  background: var(--red);
  color: white;
  border-color: var(--red);
}
.fe-node-actions .fe-edit-btn:hover {
  background: var(--accent);
  border-color: var(--accent);
}

/* Connection Ports */
.fe-port {
  position: absolute;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  border: 2px solid var(--border);
  background: var(--bg-primary);
  cursor: crosshair;
  z-index: 15;
  transition: var(--transition);
}
.fe-port:hover {
  border-color: var(--accent);
  background: var(--accent);
  transform: scale(1.3);
}
.fe-port.port-in {
  top: 50%;
  left: -7px;
  transform: translateY(-50%);
}
.fe-port.port-in:hover {
  transform: translateY(-50%) scale(1.3);
}
.fe-port.port-out {
  top: 50%;
  right: -7px;
  transform: translateY(-50%);
}
.fe-port.port-out:hover {
  transform: translateY(-50%) scale(1.3);
}

/* Condition node: two output ports */
.fe-port.port-true {
  top: 35%;
  right: -7px;
  transform: translateY(-50%);
  border-color: var(--green);
}
.fe-port.port-true:hover {
  background: var(--green);
  transform: translateY(-50%) scale(1.3);
}
.fe-port.port-false {
  top: 65%;
  right: -7px;
  transform: translateY(-50%);
  border-color: var(--red);
}
.fe-port.port-false:hover {
  background: var(--red);
  transform: translateY(-50%) scale(1.3);
}

/* Buttons node: multiple output ports */
.fe-port.port-btn {
  right: -7px;
  transform: translateY(-50%);
  border-color: var(--accent);
}
.fe-port.port-btn:hover {
  background: var(--accent);
  transform: translateY(-50%) scale(1.3);
}

/* Port labels */
.fe-port-label {
  position: absolute;
  font-size: 9px;
  font-weight: 600;
  white-space: nowrap;
  pointer-events: none;
  color: var(--text-muted);
}
.fe-port.port-true .fe-port-label { right: 18px; top: 0; color: var(--green); }
.fe-port.port-false .fe-port-label { right: 18px; top: 0; color: var(--red); }

/* Connection label */
.fe-conn-label {
  position: absolute;
  font-size: 10px;
  background: var(--bg-secondary);
  color: var(--text-muted);
  padding: 1px 6px;
  border-radius: 4px;
  border: 1px solid var(--border);
  pointer-events: none;
  z-index: 5;
  white-space: nowrap;
}

/* Status bar */
.fe-statusbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 16px;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  font-size: 12px;
  color: var(--text-muted);
  flex-shrink: 0;
}

/* Modal enhancements for editor */
.fe-modal-btns {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.fe-modal-btn-row {
  display: flex;
  gap: 8px;
  align-items: center;
}
.fe-modal-btn-row input { flex: 1; }
.fe-modal-btn-row .btn-remove {
  width: 32px;
  height: 32px;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--red);
  cursor: pointer;
  flex-shrink: 0;
  font-size: 12px;
  transition: var(--transition);
}
.fe-modal-btn-row .btn-remove:hover {
  background: var(--red);
  color: white;
  border-color: var(--red);
}