temp: adatta il sito sia per telefoni (schwermi verticaluiu piccoli) che per tablet che per desktop

frontend/app/components/ArticleCard.vue

@@ -10,14 +10,16 @@ const cover = computed(() => mediaUrl(props.article.cover))
 
 <template>
   <article class="card">
+    <!-- No placeholder box when there is no cover: an empty grey rectangle
+         reads as a broken image rather than as a deliberate choice. -->
     <NuxtLinkLocale
+      v-if="cover"
       class="cover-link"
       :to="`/blog/${article.slug}`"
       tabindex="-1"
       aria-hidden="true"
     >
       <img
-        v-if="cover"
         class="cover"
         :src="cover"
         :alt="article.cover?.alternativeText ?? ''"
@@ -25,7 +27,6 @@ const cover = computed(() => mediaUrl(props.article.cover))
         :height="article.cover?.height ?? undefined"
         loading="lazy"
       >
-      <span v-else class="cover placeholder" />
     </NuxtLinkLocale>
 
     <p v-if="article.category" class="kicker">{{ article.category.name }}</p>
@@ -60,11 +61,9 @@ const cover = computed(() => mediaUrl(props.article.cover))
   transform: scale(1.03);
 }
 
-.placeholder {
-  display: block;
-}
-
-.kicker {
+/* Without a cover the kicker leads the card, so it needs no offset. */
+.cover-link + .kicker,
+.cover-link + h2 {
   margin-top: 1.1rem;
 }