Feature 05 task 2: Core UI primitives (#34)

Co-authored-by: dev_agent <dev_agent@cubecraftlabs.com> Co-committed-by: dev_agent <dev_agent@cubecraftlabs.com>
2026-10-03 16:34:59 -04:00
parent 496f2e5375
commit 02f1dd6491
36 changed files with 1408 additions and 0 deletions
@@ -0,0 +1,57 @@
+/* The button is a 44 px hit box around the 40×24 track; negative margins keep
+   the 40×24 layout footprint. */
+.toggle {
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  flex: none;
+  width: 44px;
+  height: 44px;
+  margin: -10px -2px;
+  padding: 0;
+  border: 0;
+  border-radius: var(--radius-pill);
+  background: transparent;
+  cursor: pointer;
+}
+
+.toggle:disabled {
+  opacity: 0.45;
+  cursor: not-allowed;
+}
+
+.track {
+  position: relative;
+  width: 40px;
+  height: 24px;
+  border-radius: var(--radius-pill);
+  background: var(--color-neutral-300);
+  transition: background-color 150ms var(--ease-out-soft);
+}
+
+.knob {
+  position: absolute;
+  top: 3px;
+  left: 3px;
+  width: 18px;
+  height: 18px;
+  border-radius: var(--radius-pill);
+  background: var(--color-bg);
+  box-shadow: var(--shadow-sm);
+  transition: transform 180ms var(--ease-spring);
+}
+
+.toggle[aria-checked='true'] .track {
+  background: var(--color-accent-2-600);
+}
+
+.toggle[aria-checked='true'] .knob {
+  transform: translateX(16px);
+}
+
+@media (prefers-reduced-motion: reduce) {
+  .track,
+  .knob {
+    transition: none;
+  }
+}