diff --git a/.changeset/few-stingrays-fetch.md b/.changeset/few-stingrays-fetch.md
new file mode 100644
index 000000000..d47319df2
--- /dev/null
+++ b/.changeset/few-stingrays-fetch.md
@@ -0,0 +1,5 @@
+---
+'fumadocs-core': patch
+---
+
+Fix `remarkAdmonition` missing some types from Docusaurus
diff --git a/packages/core/src/mdx-plugins/remark-admonition.ts b/packages/core/src/mdx-plugins/remark-admonition.ts
index 1dc8894a5..c13c3802a 100644
--- a/packages/core/src/mdx-plugins/remark-admonition.ts
+++ b/packages/core/src/mdx-plugins/remark-admonition.ts
@@ -5,7 +5,6 @@ import { flattenNode } from '@/mdx-plugins/remark-utils';
 
 export interface RemarkAdmonitionOptions {
   tag?: string;
-  types?: string[];
 
   /**
    * Map type to another type
@@ -21,78 +20,80 @@ export interface RemarkAdmonitionOptions {
 export function remarkAdmonition(
   options: RemarkAdmonitionOptions = {},
 ): Transformer<Root, Root> {
-  const types = options.types ?? ['warn', 'info', 'error'];
   const tag = options.tag ?? ':::';
   // compatible with Docusaurus
   const typeMap = options.typeMap ?? {
+    info: 'info',
+    warn: 'warn',
+
     note: 'info',
     tip: 'info',
     warning: 'warn',
     danger: 'error',
   };
 
-  function replaceNodes(nodes: RootContent[]): RootContent[] {
-    if (nodes.length === 0) return nodes;
-    let open = -1,
-      end = -1;
+  function replaceNodes(nodes: RootContent[]) {
+    if (nodes.length === 0) return;
 
-    const attributes = [];
+    let open = -1;
+    let attributes = [];
+    // if children contain nested admonitions
+    let hasIntercept = false;
 
     for (let i = 0; i < nodes.length; i++) {
       if (nodes[i].type !== 'paragraph') continue;
 
       const text = flattenNode(nodes[i]);
-      const start = types.find((type) => text.startsWith(`${tag}${type}`));
+      const typeName = Object.keys(typeMap).find((type) =>
+        text.startsWith(`${tag}${type}`),
+      );
+
+      if (typeName) {
+        if (open !== -1) {
+          hasIntercept = true;
+          continue;
+        }
 
-      if (start) {
-        if (open !== -1) throw new Error('Nested callout is not supported');
         open = i;
 
         attributes.push({
           type: 'mdxJsxAttribute',
           name: 'type',
-          value: start in typeMap ? typeMap[start] : start,
+          value: typeMap[typeName],
         });
 
-        const rest = text.slice(`${tag}${start}`.length);
-        if (rest.startsWith('[') && rest.endsWith(']')) {
+        const meta = text.slice(`${tag}${typeName}`.length);
+        if (meta.startsWith('[') && meta.endsWith(']')) {
           attributes.push({
             type: 'mdxJsxAttribute',
             name: 'title',
-            value: rest.slice(1, -1),
+            value: meta.slice(1, -1),
           });
         }
       }
 
       if (open !== -1 && text === tag) {
-        end = i;
-        break;
+        const children = nodes.slice(open + 1, i);
+
+        nodes.splice(open, i - open + 1, {
+          type: 'mdxJsxFlowElement',
+          name: 'Callout',
+          attributes,
+          children: hasIntercept ? replaceNodes(children) : children,
+        } as RootContent);
+        open = -1;
+        hasIntercept = false;
+        attributes = [];
+        i = open + 1;
       }
     }
-
-    if (open === -1 || end === -1) return nodes;
-
-    return [
-      ...nodes.slice(0, open),
-      {
-        type: 'mdxJsxFlowElement',
-        name: 'Callout',
-        attributes,
-        children: nodes.slice(open + 1, end),
-      } as RootContent,
-      ...replaceNodes(nodes.slice(end + 1)),
-    ];
   }
 
   return (tree) => {
     visit(tree, (node) => {
-      if (!('children' in node)) return 'skip';
-
-      const result = replaceNodes(node.children);
-      if (result === node.children) return;
+      if (!('children' in node)) return;
 
-      node.children = result;
-      return 'skip';
+      replaceNodes(node.children);
     });
   };
 }
diff --git a/packages/core/test/fixtures/remark-admonition.md b/packages/core/test/fixtures/remark-admonition.md
index 3a9533e92..abbbfc955 100644
--- a/packages/core/test/fixtures/remark-admonition.md
+++ b/packages/core/test/fixtures/remark-admonition.md
@@ -1,4 +1,4 @@
-:::info
+:::tip
 
 Hello World
 
diff --git a/packages/ui/src/layouts/docs/sidebar.tsx b/packages/ui/src/layouts/docs/sidebar.tsx
index f84051cf8..05eb42076 100644
--- a/packages/ui/src/layouts/docs/sidebar.tsx
+++ b/packages/ui/src/layouts/docs/sidebar.tsx
@@ -59,7 +59,7 @@ interface InternalContext {
 }
 
 const itemVariants = cva(
-  'relative flex flex-row items-center gap-2 rounded-md p-2 text-start text-fd-muted-foreground [overflow-wrap:anywhere] md:py-1.5 [&_svg]:size-4 [&_svg]:shrink-0',
+  'relative flex flex-row items-center gap-2 rounded-md px-2 text-start text-fd-muted-foreground [overflow-wrap:anywhere] py-1.5 [&_svg]:size-4 [&_svg]:shrink-0',
   {
     variants: {
       active: {
@@ -359,7 +359,11 @@ export function SidebarFolderLink({
 }
 
 export function SidebarFolderContent(props: CollapsibleContentProps) {
-  return <CollapsibleContent {...props}>{props.children}</CollapsibleContent>;
+  return (
+    <CollapsibleContent {...props}>
+      <div className="pt-1">{props.children}</div>
+    </CollapsibleContent>
+  );
 }
 
 export function SidebarCollapseTrigger(
@@ -519,12 +523,9 @@ function Border({ depth, active }: { depth: number; active?: boolean }) {
   return (
     <div
       className={cn(
-        'absolute w-px inset-y-0 bg-fd-border z-[2]',
+        'absolute w-px inset-y-0 bg-fd-border z-[2] start-3',
         active && 'bg-fd-primary',
       )}
-      style={{
-        insetInlineStart: `calc(var(--spacing) * 2 + 1px)`,
-      }}
     />
   );
 }