almost there for function

src/app.css

@@ -465,3 +465,10 @@ input[type="checkbox"]:checked::before {
   width: 100%;
   height: 100%;
 }
+
+/* Hamburger menu button - only show on non-touch devices under mobile breakpoint */
+@media (max-width: 767px) and (hover: hover) and (pointer: fine) {
+  .hamburger-menu-btn {
+    display: block !important;
+  }
+}

src/app.tsx

@@ -1,6 +1,12 @@
 import { Router } from "@solidjs/router";
 import { FileRoutes } from "@solidjs/start/router";
-import { createEffect, ErrorBoundary, Suspense, onMount, onCleanup } from "solid-js";
+import {
+  createEffect,
+  ErrorBoundary,
+  Suspense,
+  onMount,
+  onCleanup
+} from "solid-js";
 import "./app.css";
 import { LeftBar, RightBar } from "./components/Bars";
 import { TerminalSplash } from "./components/TerminalSplash";
@@ -29,13 +35,13 @@ function AppLayout(props: { children: any }) {
   createEffect(() => {
     const handleResize = () => {
       const isMobile = window.innerWidth < 768; // md breakpoint
-      
+
       // Show bars when switching to desktop
       if (!isMobile) {
         setLeftBarVisible(true);
         setRightBarVisible(true);
       }
-      
+
       const newWidth = window.innerWidth - leftBarSize() - rightBarSize();
       setCenterWidth(newWidth);
     };
@@ -77,12 +83,34 @@ function AppLayout(props: { children: any }) {
     });
   });
 
+  // ESC key to close sidebars on mobile
+  onMount(() => {
+    const handleKeyDown = (e: KeyboardEvent) => {
+      const isMobile = window.innerWidth < 768; // md breakpoint
+
+      if (e.key === "Escape" && isMobile) {
+        if (leftBarVisible()) {
+          setLeftBarVisible(false);
+        }
+        if (rightBarVisible()) {
+          setRightBarVisible(false);
+        }
+      }
+    };
+
+    window.addEventListener("keydown", handleKeyDown);
+
+    onCleanup(() => {
+      window.removeEventListener("keydown", handleKeyDown);
+    });
+  });
+
   // Swipe gestures to reveal bars
   onMount(() => {
     let touchStartX = 0;
     let touchStartY = 0;
-    const EDGE_THRESHOLD = 50; // pixels from edge to trigger
-    const SWIPE_THRESHOLD = 100; // minimum swipe distance
+    const EDGE_THRESHOLD = 100;
+    const SWIPE_THRESHOLD = 100;
 
     const handleTouchStart = (e: TouchEvent) => {
       touchStartX = e.touches[0].clientX;
@@ -111,7 +139,10 @@ function AppLayout(props: { children: any }) {
             setLeftBarVisible(true);
           }
           // Swipe left from right edge - reveal right bar
-          else if (touchStartX > window.innerWidth - EDGE_THRESHOLD && deltaX < -SWIPE_THRESHOLD) {
+          else if (
+            touchStartX > window.innerWidth - EDGE_THRESHOLD &&
+            deltaX < -SWIPE_THRESHOLD
+          ) {
             setRightBarVisible(true);
           }
         }
@@ -129,16 +160,32 @@ function AppLayout(props: { children: any }) {
 
   return (
     <div class="flex max-w-screen flex-row">
-      {/* Backdrop overlay - visible on mobile when sidebar is open */}
-      <div
-        class="fixed inset-0 bg-black transition-opacity duration-500 ease-out md:hidden z-40"
+      {/* Hamburger menu button - only visible on non-touch devices under mobile breakpoint */}
+      <button
+        onClick={() => setLeftBarVisible(!leftBarVisible())}
+        class="hamburger-menu-btn fixed top-4 left-4 z-50 p-2 rounded-md bg-surface0 hover:bg-surface1 transition-colors shadow-md"
         classList={{
-          "opacity-50 pointer-events-auto": leftBarVisible(),
-          "opacity-0 pointer-events-none": !leftBarVisible()
+          "hidden": leftBarVisible()
         }}
-        onClick={() => setLeftBarVisible(false)}
-        aria-label="Close sidebar"
-      />
+        aria-label="Toggle navigation menu"
+        style={{
+          display: "none" // Hidden by default, shown via media query for non-touch devices
+        }}
+      >
+        <svg
+          class="w-6 h-6 text-text"
+          fill="none"
+          stroke="currentColor"
+          viewBox="0 0 24 24"
+        >
+          <path
+            stroke-linecap="round"
+            stroke-linejoin="round"
+            stroke-width="2"
+            d="M4 6h16M4 12h16M4 18h16"
+          />
+        </svg>
+      </button>
       
       <LeftBar />
       <div

src/components/Bars.tsx

@@ -3,9 +3,11 @@ import { useBars } from "~/context/bars";
 import { onMount, createEffect } from "solid-js";
 
 export function LeftBar() {
-  const { setLeftBarSize, leftBarVisible } = useBars();
+  const { setLeftBarSize, leftBarVisible, setLeftBarVisible } = useBars();
   let ref: HTMLDivElement | undefined;
   let actualWidth = 0;
+  let touchStartX = 0;
+  let touchStartY = 0;
 
   onMount(() => {
     if (ref) {
@@ -25,7 +27,72 @@ export function LeftBar() {
       });
       resizeObserver.observe(ref);
 
-      return () => resizeObserver.disconnect();
+      // Swipe-to-dismiss gesture on sidebar itself (mobile only)
+      const handleTouchStart = (e: TouchEvent) => {
+        touchStartX = e.touches[0].clientX;
+        touchStartY = e.touches[0].clientY;
+      };
+
+      const handleTouchEnd = (e: TouchEvent) => {
+        const isMobile = window.innerWidth < 768;
+        if (!isMobile) return; // Only allow dismiss on mobile
+        
+        const touchEndX = e.changedTouches[0].clientX;
+        const touchEndY = e.changedTouches[0].clientY;
+        const deltaX = touchEndX - touchStartX;
+        const deltaY = touchEndY - touchStartY;
+
+        // Only trigger if horizontal swipe is dominant
+        if (Math.abs(deltaX) > Math.abs(deltaY)) {
+          // Swipe left to dismiss (at least 50px)
+          if (deltaX < -50 && leftBarVisible()) {
+            setLeftBarVisible(false);
+          }
+        }
+      };
+
+      // Focus trap for accessibility on mobile
+      const handleKeyDown = (e: KeyboardEvent) => {
+        const isMobile = window.innerWidth < 768;
+        
+        if (!isMobile || !leftBarVisible()) return;
+
+        if (e.key === 'Tab') {
+          const focusableElements = ref?.querySelectorAll(
+            'a[href], button:not([disabled]), input:not([disabled]), select:not([disabled]), textarea:not([disabled]), [tabindex]:not([tabindex="-1"])'
+          );
+          
+          if (!focusableElements || focusableElements.length === 0) return;
+
+          const firstElement = focusableElements[0] as HTMLElement;
+          const lastElement = focusableElements[focusableElements.length - 1] as HTMLElement;
+
+          if (e.shiftKey) {
+            // Shift+Tab - going backwards
+            if (document.activeElement === firstElement) {
+              e.preventDefault();
+              lastElement.focus();
+            }
+          } else {
+            // Tab - going forwards
+            if (document.activeElement === lastElement) {
+              e.preventDefault();
+              firstElement.focus();
+            }
+          }
+        }
+      };
+
+      ref.addEventListener('touchstart', handleTouchStart, { passive: true });
+      ref.addEventListener('touchend', handleTouchEnd, { passive: true });
+      ref.addEventListener('keydown', handleKeyDown);
+
+      return () => {
+        resizeObserver.disconnect();
+        ref?.removeEventListener('touchstart', handleTouchStart);
+        ref?.removeEventListener('touchend', handleTouchEnd);
+        ref?.removeEventListener('keydown', handleKeyDown);
+      };
     }
   });
 
@@ -34,6 +101,22 @@ export function LeftBar() {
     setLeftBarSize(leftBarVisible() ? actualWidth : 0);
   });
 
+  // Auto-focus first element when sidebar opens on mobile
+  createEffect(() => {
+    const isMobile = window.innerWidth < 768;
+    
+    if (leftBarVisible() && isMobile && ref) {
+      const firstFocusable = ref.querySelector(
+        'a[href], button:not([disabled]), input:not([disabled])'
+      ) as HTMLElement;
+      
+      if (firstFocusable) {
+        // Small delay to ensure animation has started
+        setTimeout(() => firstFocusable.focus(), 100);
+      }
+    }
+  });
+
   return (
     <nav
       ref={ref}
@@ -113,7 +196,9 @@ export function RightBar() {
       });
       resizeObserver.observe(ref);
 
-      return () => resizeObserver.disconnect();
+      return () => {
+        resizeObserver.disconnect();
+      };
     }
   });
 

src/context/bars.tsx

@@ -1,5 +1,6 @@
 import { Accessor, createContext, useContext } from "solid-js";
 import { createSignal } from "solid-js";
+import { hapticFeedback } from "~/lib/client-utils";
 
 const BarsContext = createContext<{
   leftBarSize: Accessor<number>;
@@ -38,8 +39,19 @@ export function BarsProvider(props: { children: any }) {
   const [leftBarSize, setLeftBarSize] = createSignal(0);
   const [rightBarSize, setRightBarSize] = createSignal(0);
   const [centerWidth, setCenterWidth] = createSignal(0);
-  const [leftBarVisible, setLeftBarVisible] = createSignal(true);
-  const [rightBarVisible, setRightBarVisible] = createSignal(true);
+  const [leftBarVisible, _setLeftBarVisible] = createSignal(true);
+  const [rightBarVisible, _setRightBarVisible] = createSignal(true);
+
+  // Wrap visibility setters with haptic feedback
+  const setLeftBarVisible = (visible: boolean) => {
+    hapticFeedback(50);
+    _setLeftBarVisible(visible);
+  };
+
+  const setRightBarVisible = (visible: boolean) => {
+    hapticFeedback(50);
+    _setRightBarVisible(visible);
+  };
 
   const toggleLeftBar = () => setLeftBarVisible(!leftBarVisible());
   const toggleRightBar = () => setRightBarVisible(!rightBarVisible());

src/lib/client-utils.ts

@@ -0,0 +1,14 @@
+/**
+ * Client-side utility functions
+ * Note: These utilities should only run in the browser
+ */
+
+/**
+ * Triggers haptic feedback on mobile devices
+ * @param duration - Duration in milliseconds (default 50ms for a light tap)
+ */
+export function hapticFeedback(duration: number = 50) {
+  if (typeof window !== "undefined" && "vibrate" in navigator) {
+    navigator.vibrate(duration);
+  }
+}