Initial commit

src/style.css

@@ -0,0 +1,93 @@
+:root {
+  font-family: Inter, system-ui, Avenir, Helvetica, Arial, sans-serif;
+  line-height: 1.5;
+  font-weight: 400;
+
+  color-scheme: light dark;
+  color: rgba(255, 255, 255, 0.87);
+  background-color: #242424;
+
+  font-synthesis: none;
+  text-rendering: optimizeLegibility;
+  -webkit-font-smoothing: antialiased;
+  -moz-osx-font-smoothing: grayscale;
+}
+
+body {
+  margin: 0;
+  display: flex;
+  place-items: center;
+  min-width: 320px;
+  min-height: 100vh;
+}
+
+h1 {
+  font-size: 3.2em;
+  line-height: 1.1;
+}
+
+#app {
+  max-width: 1280px;
+  margin: 0 auto;
+  padding: 2rem;
+  text-align: center;
+}
+
+.input {
+  display: flex;
+  align-items: center;
+}
+input {
+  padding: 0.3em 0.5em;
+  margin-bottom: 0.5em;
+  font-size: 1.1em;
+  width: 6em;
+  background-color: transparent;
+  transition: border-color 0.25s;
+}
+button {
+  border-radius: 8px;
+  border: 1px solid transparent;
+  padding: 0.6em 1.2em;
+  font-size: 1em;
+  font-weight: 500;
+  font-family: inherit;
+  background-color: #1a1a1a;
+  cursor: pointer;
+  transition: border-color 0.25s;
+}
+button:hover {
+  border-color: #646cff;
+}
+button:focus,
+button:focus-visible {
+  outline: 4px auto -webkit-focus-ring-color;
+}
+
+#light {
+  width: 2.5em;
+  height: 2.5em;
+  border-radius: 50%;
+  background-color: #1a1a1a;
+  margin-left: .75em;
+}
+#light.is-valid {
+  background-color: #46fd46;
+}
+#light.is-invalid {
+  background-color: #fd3838;
+}
+
+.current-node {
+  fill: red !important;
+}
+
+@media (prefers-color-scheme: light) {
+  :root {
+    color: #213547;
+    background-color: #ffffff;
+  }
+  button {
+    background-color: #f9f9f9;
+  }
+}