body {
  font-family: sans-serif;
  margin: 0;
  overflow: hidden; /* Prevent body scrollbars */
  background-color: #333;
  color: #eee;
}

.editor-layout {
  display: flex;
  height: 100vh;
  width: 100vw;
}

.toolbar {
  padding: 15px;
  border-right: 1px solid #555;
  background-color: #444;
  width: 150px;
  flex-shrink: 0;
  overflow-y: auto;
}

.toolbar h3 {
  margin-top: 0;
  font-size: 1em;
  color: #ddd;
}

.toolbar button {
  display: block;
  width: 100%;
  margin-bottom: 10px;
  padding: 8px;
  border: 1px solid #666;
  background-color: #555;
  color: #eee;
  cursor: pointer;
  text-align: left;
}

.toolbar button:hover {
  background-color: #666;
}

.toolbar button.active {
  background-color: #7799cc;
  font-weight: bold;
  border-color: #99bbff;
  color: #fff;
}

.toolbar label {
  display: block;
  margin-bottom: 5px;
  font-size: 0.9em;
}
.toolbar hr {
  border-color: #666;
  margin: 15px 0;
}

#canvas-container {
  flex-grow: 1; /* Fill remaining space */
  position: relative; /* Needed for potential overlays */
  min-width: 0; /* Prevent flexbox overflow issues */
}

#canvas-container canvas {
  display: block; /* Remove extra space below canvas */
}

.sidebar {
  width: 280px; /* Fixed width */
  border-left: 1px solid #555;
  display: flex;
  flex-direction: column;
  background-color: #444;
  flex-shrink: 0;
  overflow-y: auto; /* Allow sidebar content to scroll */
}

.properties-panel,
.object-list-panel,
.export-panel {
  padding: 15px;
  border-bottom: 1px solid #555;
}
.properties-panel:last-child,
.object-list-panel:last-child,
.export-panel:last-child {
  border-bottom: none;
}

.sidebar h3,
.sidebar h4 {
  margin-top: 0;
  font-size: 1em;
  color: #ddd;
}
.sidebar h4 {
  font-size: 0.9em;
  color: #bbb;
  margin-bottom: 5px;
}

.properties-panel label {
  display: block;
  margin-top: 10px;
  font-size: 0.9em;
  margin-bottom: 3px;
}

.properties-panel input[type="text"],
.properties-panel input[type="number"],
.properties-panel select,
.properties-panel textarea {
  width: calc(100% - 12px); /* Account for padding */
  padding: 5px;
  border: 1px solid #666;
  border-radius: 3px;
  margin-bottom: 5px;
  background-color: #555;
  color: #eee;
}
.properties-panel input[type="color"] {
  width: 50px;
  height: 25px;
  padding: 0;
  border: 1px solid #666;
  vertical-align: middle;
  background-color: #555; /* May not be stylable in all browsers */
}
.properties-panel input:disabled,
.properties-panel select:disabled,
.properties-panel textarea:disabled {
  background-color: #4a4a4a;
  color: #888;
  cursor: not-allowed;
}
.properties-panel button:disabled {
  background-color: #4a4a4a;
  color: #888;
  cursor: not-allowed;
  border-color: #555;
}

#default-properties {
  margin-top: 15px;
  padding-top: 10px;
  border-top: 1px dashed #666;
}

#object-list {
  list-style: none;
  padding: 0;
  margin: 0;
  max-height: 250px; /* Limit height */
  overflow-y: auto;
}

#object-list li {
  padding: 5px;
  cursor: pointer;
  border-bottom: 1px solid #555;
  font-size: 0.9em;
}

#object-list li:hover {
  background-color: #555;
}

#object-list li.selected {
  background-color: #7799cc;
  font-weight: bold;
  color: #fff;
}

#json-output {
  width: calc(100% - 12px);
  margin-top: 10px;
  font-family: monospace;
  font-size: 0.8em;
  border: 1px solid #666;
  background-color: #3a3a3a;
  color: #eee;
}

#export-json,
#download-json,
#apply-props,
#tool-delete {
  padding: 8px 12px;
  background-color: #666;
  border: 1px solid #888;
  border-radius: 3px;
  cursor: pointer;
  color: #eee;
  margin-top: 5px;
}
#export-json:hover,
#download-json:hover,
#apply-props:hover,
#tool-delete:hover {
  background-color: #777;
}
#tool-delete,
#apply-props {
  margin-top: 10px;
}
#tool-delete {
  background-color: #a55;
  border-color: #c77;
}
#tool-delete:hover {
  background-color: #b66;
}
#apply-props {
  background-color: #5a5;
  border-color: #7c7;
}
#apply-props:hover {
  background-color: #6b6;
}
#undo-btn,
#redo-btn {
  background-color: #557;
  border-color: #779;
}
#undo-btn:hover,
#redo-btn:hover {
  background-color: #668;
}
#undo-btn:disabled,
#redo-btn:disabled {
  background-color: #445;
  color: #888;
  cursor: not-allowed;
  border-color: #556;
}