[WIP] Add CircuitBuilder activity

activities/CircuitBuilder.activity/activity/activity.info

@@ -0,0 +1,6 @@
+[Activity]
+name = Circuit Builder
+activity_version = 1
+bundle_id = org.sugarlabs.CircuitBuilder
+exec = sugar-activity-web
+icon = activity-icon

activities/CircuitBuilder.activity/css/activity.css

@@ -0,0 +1,271 @@
+
+#main-toolbar #activity-button {
+  background-image: url(../activity/activity-icon.svg);
+}
+
+#main-toolbar #help-button {
+  background-image: url(../icons/help.svg);
+}
+
+/* Component tool buttons */
+#main-toolbar #add-battery-button {
+  background-image: url(../icons/battery.svg);
+}
+
+#main-toolbar #add-bulb-button {
+  background-image: url(../icons/bulb.svg);
+}
+
+#main-toolbar #add-switch-button {
+  background-image: url(../icons/switch.svg);
+}
+
+#main-toolbar #delete-button {
+  background-image: url(../icons/delete.svg);
+}
+
+#main-toolbar #clear-button {
+  background-image: url(../icons/reset.svg);
+}
+
+#main-toolbar #preset-circuits-button {
+  background-image: url(../icons/preset-circuits.svg);
+}
+
+#main-toolbar #show-labels-button {
+  background-image: url(../icons/show-labels.svg);
+}
+
+#fullscreen-button {
+  background-image: url(../icons/view-fullscreen.svg);
+}
+
+#unfullscreen-button {
+  background-image: url(../icons/view-return.svg);
+  border: 0;
+  border-radius: 0;
+  margin: 1px;
+  width: 45px;
+  height: 45px;
+  top: 0;
+  right: 1%;
+  position: absolute;
+  visibility: hidden;
+  z-index: 5;
+}
+
+.level-text {
+  color: #FFFFFF;
+  font-family: 'Helvetica', 'Arial', sans-serif;
+  font-size: 18px;
+  font-weight: bold;
+  display: inline-flex;
+  align-items: center;
+  padding: 0 8px;
+  height: 55px;
+  line-height: 55px;
+  vertical-align: top;
+  user-select: none;
+}
+
+/* Active tool highlight */
+#main-toolbar .toolbutton.active {
+  background-color: rgba(255, 255, 255, 0.3);
+  border-radius: 5px;
+  box-shadow: inset 0 0 0 2px rgba(255, 255, 255, 0.5);
+}
+
+.seprator-line {
+  display: inline-block;
+  width: 2px;
+  height: 40px;
+  background-color: rgba(255, 255, 255, 0.3);
+  vertical-align: middle;
+  margin: 7px 5px;
+}
+
+body {
+  margin: 0;
+  padding: 0;
+  overflow: hidden !important;
+  background-color: #b8956a !important;
+}
+
+#canvas {
+  position: absolute !important;
+  top: 55px !important;
+  bottom: 0 !important;
+  left: 0 !important;
+  width: 100% !important;
+  height: auto !important;
+  overflow: hidden !important;
+  background-color: #b8956a !important;
+}
+
+#circuit-canvas {
+  display: block;
+  position: absolute;
+  top: 0;
+  left: 0;
+  width: 100%;
+  height: 100%;
+  cursor: crosshair;
+  z-index: 1;
+  touch-action: none;
+}
+
+#level-info {
+  position: absolute;
+  top: 10px;
+  left: 50%;
+  transform: translateX(-50%);
+  background: rgba(0, 0, 0, 0.55);
+  color: #FFFFFF;
+  padding: 8px 24px;
+  border-radius: 20px;
+  font-family: 'Helvetica', 'Arial', sans-serif;
+  font-size: 16px;
+  z-index: 10;
+  display: flex;
+  gap: 20px;
+  align-items: center;
+  user-select: none;
+  pointer-events: none;
+  backdrop-filter: blur(4px);
+}
+
+#level-description {
+  font-weight: 500;
+}
+
+#wire-count {
+  font-weight: bold;
+  color: #FFD54F;
+}
+
+#message-overlay {
+  position: absolute;
+  top: 0;
+  left: 0;
+  width: 100%;
+  height: 100%;
+  background: rgba(0, 0, 0, 0.5);
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  z-index: 100;
+  backdrop-filter: blur(3px);
+}
+
+#message-overlay.hidden {
+  display: none;
+}
+
+#message-box {
+  background: #FFFFFF;
+  border-radius: 16px;
+  padding: 30px 50px;
+  text-align: center;
+  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
+  max-width: 400px;
+  animation: popIn 0.3s ease-out;
+}
+
+@keyframes popIn {
+  0% { transform: scale(0.7); opacity: 0; }
+  100% { transform: scale(1); opacity: 1; }
+}
+
+#message-icon {
+  font-size: 48px;
+  margin-bottom: 12px;
+}
+
+#message-text {
+  font-family: 'Helvetica', 'Arial', sans-serif;
+  font-size: 18px;
+  color: #333;
+  margin-bottom: 20px;
+  line-height: 1.4;
+}
+
+#message-btn {
+  background: #4CAF50;
+  color: #FFFFFF;
+  border: none;
+  border-radius: 25px;
+  padding: 12px 36px;
+  font-size: 16px;
+  font-weight: bold;
+  cursor: pointer;
+  font-family: 'Helvetica', 'Arial', sans-serif;
+  transition: background 0.2s;
+}
+
+#message-btn:hover {
+  background: #388E3C;
+}
+
+#message-btn.try-again {
+  background: #FF9800;
+}
+
+#message-btn.try-again:hover {
+  background: #F57C00;
+}
+
+#message-btn.all-done {
+  background: #2196F3;
+}
+
+#message-btn.all-done:hover {
+  background: #1976D2;
+}
+
+/* Palette styling for Sugarizer consistency */
+.palette {
+  color: black;
+}
+
+.palette label {
+  color: white;
+  font-size: 1.3rem;
+}
+
+/* Preset circuits palette */
+#preset-palette .wrapper {
+  min-width: 220px;
+  max-width: 320px;
+}
+
+.preset-palette {
+  display: flex;
+  flex-direction: column;
+  width: 100%;
+}
+
+.preset-button {
+  all: unset;
+  color: white;
+  padding: 8px 12px;
+  display: flex;
+  align-items: center;
+  gap: 10px;
+  font-size: 14px;
+  font-family: 'Helvetica', 'Arial', sans-serif;
+  cursor: pointer;
+  box-sizing: border-box;
+  width: 100%;
+}
+
+.preset-button:hover {
+  background-color: rgba(255, 255, 255, 0.15);
+}
+
+.preset-icon {
+  flex-shrink: 0;
+}
+
+.preset-label {
+  white-space: nowrap;
+}