chore: viteconf 24 cta (#2953)

.vitepress/theme/components/SponsorsAside.vue

@@ -5,6 +5,18 @@ const { frontmatter } = useData()
 </script>
 
 <template>
+  <a
+    class="viteconf-cta-aside"
+    href="https://viteconf.org/?utm=vite-sidebar"
+    target="_blank"
+  >
+    <img width="22" height="22" src="/viteconf.svg" />
+    <span>
+      <p class="extra-info">Building Together</p>
+      <p class="heading">ViteConf 24 - Oct 3</p>
+      <p class="extra-info">Get your free ticket!</p>
+    </span>
+  </a>
   <div v-if="frontmatter.sponsors !== false">
     <a class="sponsors-aside-text" href="/sponsor/">Sponzoři</a>
     <SponsorsGroup tier="special" />
@@ -16,10 +28,68 @@ const { frontmatter } = useData()
 a.sponsors-aside-text {
   color: var(--vt-c-text-3);
   display: block;
-  margin: 3em 0 1em;
+  margin: 1em 0 1em;
   font-weight: 700;
   font-size: 11px;
   text-transform: uppercase;
   letter-spacing: 0.4px;
 }
+
+.viteconf-cta-aside {
+  margin-top: 1rem;
+  margin-bottom: 1rem;
+  border-radius: 4px;
+  padding-top: 0.4rem;
+  padding-bottom: 0.4rem;
+  position: relative;
+  font-size: 0.9rem;
+  font-weight: 700;
+  line-height: 1.1rem;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  width: 100%;
+  gap: 1rem;
+  background-color: var(--vt-c-bg-soft);
+  border: 2px solid var(--vt-c-bg-soft);
+  transition: border-color 0.5s;
+  filter: grayscale(1);
+}
+.viteconf-cta-aside:hover {
+  border: 2px solid #9499ff;
+  filter: none;
+}
+.viteconf-cta-aside img {
+  transition: transform 0.5s;
+  transform: scale(1.25);
+}
+.viteconf-cta-aside:hover img {
+  transform: scale(1.75);
+}
+
+.viteconf-cta-aside .heading {
+  color: var(--vt-c-text-1);
+}
+
+.viteconf-cta-aside:hover .heading {
+  background-image: linear-gradient(
+    120deg,
+    #b047ff 16%,
+    #9499ff,
+    #9499ff
+  );
+  background-clip: text;
+  -webkit-background-clip: text;
+  -webkit-text-fill-color: transparent;
+}
+.viteconf-cta-aside .extra-info {
+  color: var(--vt-c-text-1);
+  opacity: 0;
+  font-size: 0.7rem;
+  padding-left: 0.1rem;
+  transition: opacity 0.5s;
+}
+.viteconf-cta-aside:hover .extra-info {
+  opacity: 0.9;
+}
 </style>