keyboard stuff, styling things

src/lib/style/form/_button.scss

@@ -0,0 +1,69 @@
+a {
+  text-decoration: none;
+}
+
+a,
+label:has(input),
+button {
+  cursor: pointer;
+
+  display: flex;
+  gap: 4px;
+  align-items: center;
+  justify-content: center;
+
+  width: max-content;
+  height: 48px;
+  padding-block: 8px;
+  padding-inline: 16px;
+
+  font-family: inherit;
+  font-weight: 600;
+  color: currentcolor;
+
+  background: transparent;
+  border: none;
+  border-radius: 32px;
+
+  transition: all 250ms ease;
+
+  &.icon {
+    aspect-ratio: 1;
+    padding-block: 0;
+    padding-inline: 0;
+
+    font-size: 24px;
+
+    border-radius: 50%;
+  }
+
+  &.primary {
+    color: var(--md-sys-color-on-primary);
+    background: var(--md-sys-color-primary);
+  }
+}
+
+label:has(input):hover,
+.button:hover:not(:active),
+a:hover:not(:active),
+button:hover:not(:active) {
+  filter: brightness(70%);
+  transition: filter 250ms ease;
+
+  &:has(:checked),
+  &.active {
+    filter: brightness(120%);
+  }
+
+  &:disabled,
+  &.disabled {
+    opacity: 0.5;
+    filter: none;
+  }
+}
+
+.disabled,
+:disabled {
+  pointer-events: none;
+  opacity: 0.5;
+}