Refactor sidebar profile to author card with enhanced styling and social links

css/style.css

@@ -977,38 +977,75 @@ img.nav-svg-icon {
 	font-size: 0.9rem;
 }
 
-/* Compact profile card inside the sidebar (article view) */
-.sidebar-profile {
+/* Author card inside the sidebar (article view) */
+.sidebar-author {
 	padding-bottom: 1.2rem;
 	margin-bottom: 1.2rem;
 	border-bottom: 1px solid var(--border-subtle);
 }
 
-.sidebar-profile-avatar {
-	width: 84px;
-	height: 84px;
+.sidebar-author-label {
+	display: block;
+	font-size: var(--font-size-xs);
+	font-weight: 700;
+	text-transform: uppercase;
+	letter-spacing: 0.08em;
+	color: var(--text-muted);
+	margin-bottom: 0.6rem;
+}
+
+.sidebar-author-identity {
+	display: flex;
+	align-items: center;
+	gap: 0.75rem;
+	margin-bottom: 0.75rem;
+}
+
+.sidebar-author-avatar {
+	width: 52px;
+	height: 52px;
 	border-radius: 50%;
 	object-fit: cover;
-	border: 3px solid var(--bg-surface);
-	box-shadow: var(--shadow-sm);
-	margin-bottom: var(--space-sm);
+	flex-shrink: 0;
+	border: 2px solid var(--border-color);
 	transition: transform 0.2s ease;
 }
 
-.sidebar-profile-avatar:hover {
+.sidebar-author-avatar:hover {
 	transform: translateY(-2px);
 }
 
-.sidebar-profile-name {
+.sidebar-author-name {
 	font-weight: 700;
-	font-size: 1rem;
+	font-size: 0.95rem;
 	color: var(--text-primary);
+	line-height: 1.3;
 }
 
-.sidebar-profile-bio {
+.sidebar-author-bio {
 	color: var(--text-secondary);
-	font-size: var(--font-size-sm);
-	margin: 0.35rem 0 0;
+	font-size: var(--font-size-xs);
+	margin: 0.2rem 0 0;
+	line-height: 1.4;
+}
+
+.sidebar-author-social {
+	display: flex;
+	flex-wrap: wrap;
+	gap: 0.5rem;
+}
+
+.sidebar-social-icon {
+	width: 1.1rem;
+	height: 1.1rem;
+	opacity: 0.55;
+	transition: opacity 0.2s ease, transform 0.2s ease;
+	filter: var(--social-icon-filter);
+}
+
+.sidebar-author-social a:hover .sidebar-social-icon {
+	opacity: 1;
+	transform: translateY(-2px);
 }
 
 .plugin {