html {
  box-sizing: border-box;
}
*, *:before, *:after {
  box-sizing: inherit;
}
body {
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
    'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
    sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  background: #f5f7fa;
  color: #222;
  min-height: 100vh;
  min-width: 100vw;
  overflow-x: hidden;
}
#root {
  width: 100vw;
  height: 100vh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

/* ReactFlow customizations */
.react-flow__node {
  padding: 10px;
  border-radius: 5px;
  width: 150px;
  font-size: 12px;
  color: #222;
  text-align: center;
  border-width: 1px;
  border-style: solid;
  background: white;
  border-color: #1a192b;
}
.react-flow__node-input {
  background: #f6f6f6;
  border-color: #0041d0;
}
.react-flow__node-default {
  background: #f6f6f6;
  border-color: #1a192b;
}
.react-flow__node-output {
  background: #f6f6f6;
  border-color: #ff0072;
}
.react-flow__handle {
  width: 8px;
  height: 8px;
  background: #1a192b;
  border: 1px solid white;
}
.react-flow__handle-top { top: -4px; }
.react-flow__handle-bottom { bottom: -4px; }
.react-flow__handle-left { left: -4px; }
.react-flow__handle-right { right: -4px; }
.react-flow__edge-path {
  stroke: #b1b1b7;
  stroke-width: 2;
}
.react-flow__edge.selected .react-flow__edge-path {
  stroke: #0041d0;
}
.react-flow__controls {
  box-shadow: 0 0 2px 1px rgba(0, 0, 0, 0.08);
}
.react-flow__controls-button {
  border: none;
  background: #f8f8f8;
  border-bottom: 1px solid #eee;
  box-sizing: content-box;
  display: flex;
  justify-content: center;
  align-items: center;
  width: 16px;
  height: 16px;
  cursor: pointer;
  user-select: none;
  padding: 5px;
}
.react-flow__controls-button:hover {
  background: #f1f1f1;
}

.mindmap-editor-container {
  width: 100vw;
  height: 100vh;
  display: flex;
  flex-direction: row;
}
@media (max-width: 700px) {
  .mindmap-editor-container {
    flex-direction: column;
    height: 100dvh;
  }
}
.toolbar {
  display: flex;
  gap: 8px;
  padding: 8px;
  background: #f5faff;
  border-bottom: 1px solid #eaf4ff;
  z-index: 10;
}
.toolbar button {
  background: #fff;
  border: 1px solid #cce3ff;
  border-radius: 4px;
  padding: 6px 12px;
  font-size: 1rem;
  cursor: pointer;
  transition: background 0.2s;
}
.toolbar button:focus {
  outline: 2px solid #007bff;
}
.toolbar button:hover {
  background: #eaf4ff;
}
.error-toast {
  position: fixed;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  background: #dc3545;
  color: white;
  padding: 10px 20px;
  border-radius: 4px;
  z-index: 1000;
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 200px;
}
.error-toast button {
  background: none;
  border: none;
  color: white;
  font-size: 1.2rem;
  cursor: pointer;
  margin-left: 8px;
}
.touch-friendly .toolbar button {
  min-width: 44px;
  min-height: 44px;
  font-size: 1.1rem;
}
@media (max-width: 700px) {
  .toolbar {
    flex-wrap: wrap;
    gap: 4px;
    padding: 4px;
  }
  .error-toast {
    top: 60px;
    min-width: 120px;
    font-size: 0.95rem;
    padding: 8px 10px;
  }
}