feat: add shareable meme permalinks

public/assets/styles.css

@@ -339,12 +339,14 @@ a {
 }
 
 .text-action {
+  appearance: none;
   display: inline-flex;
   align-items: center;
   justify-content: center;
   gap: 6px;
   padding: 8px 10px;
   border: 1px solid #1a1a1a;
+  border-radius: 0;
   background: transparent;
   color: var(--muted);
   font-size: 10px;
@@ -371,6 +373,12 @@ a {
   background: var(--surface-high);
 }
 
+.text-action.is-copied {
+  border-color: var(--primary);
+  background: rgb(0 255 65 / 12%);
+  color: var(--primary);
+}
+
 .feed-loader {
   display: flex;
   flex-direction: column;
@@ -523,6 +531,10 @@ dialog::backdrop {
   box-shadow: 0 0 18px rgb(0 255 65 / 12%);
 }
 
+.share-panel {
+  width: min(640px, calc(100vw - 32px));
+}
+
 .modal-header,
 .lightbox-toolbar {
   display: flex;
@@ -576,6 +588,60 @@ dialog::backdrop {
   color: var(--error);
 }
 
+.share-body {
+  padding: 18px 16px 16px;
+}
+
+.share-body label,
+.share-status {
+  color: var(--outline);
+  font-size: 10px;
+  font-weight: 600;
+  letter-spacing: 0.1em;
+  text-transform: uppercase;
+}
+
+.share-link-row {
+  display: flex;
+  gap: 8px;
+  margin-top: 8px;
+}
+
+.share-link-row input {
+  min-width: 0;
+  flex: 1 1 auto;
+  height: 40px;
+  padding: 0 12px;
+  border: 1px solid var(--outline-variant);
+  border-radius: 0;
+  outline: 0;
+  background: var(--surface-lowest);
+  color: var(--text);
+  font-size: 12px;
+}
+
+.share-link-row input:focus {
+  border-color: var(--primary-dim);
+}
+
+.share-copy {
+  display: inline-flex;
+  align-items: center;
+  gap: 6px;
+  min-height: 40px;
+}
+
+.share-copy:disabled {
+  cursor: wait;
+  opacity: 0.65;
+}
+
+.share-status {
+  min-height: 16px;
+  margin: 10px 0 0;
+  color: var(--primary-dim);
+}
+
 .modal-actions {
   display: flex;
   justify-content: flex-end;
@@ -641,12 +707,11 @@ dialog::backdrop {
   background: #000;
 }
 
-.lightbox-download {
+.lightbox-actions {
   display: flex;
-  width: max-content;
-  margin: 12px 12px 12px auto;
-  align-items: center;
-  gap: 6px;
+  justify-content: flex-end;
+  gap: 8px;
+  margin: 12px;
 }
 
 .empty-state {
@@ -752,6 +817,15 @@ dialog::backdrop {
     padding-inline: 14px;
   }
 
+  .share-link-row {
+    align-items: stretch;
+    flex-direction: column;
+  }
+
+  .share-copy {
+    justify-content: center;
+  }
+
   .shell {
     padding-top: 84px;
   }