Made the app mobile friendly

src/components/Navbar/Navbar.css

@@ -1,4 +1,8 @@
-nav ul {
+.navbar {
+    margin-bottom: 12px;
+}
+
+.nav-list {
     list-style-type: none;
     margin: 0;
     padding: 0;
@@ -7,11 +11,16 @@ nav ul {
     justify-content: center;
     align-items: center;
     flex-wrap: wrap;
-    border-radius: 8px;
+    border-radius: 12px;
     overflow: hidden;
+    box-shadow: var(--shadow-soft);
 }
 
-nav ul li a {
+.nav-menu-toggle {
+    display: none;
+}
+
+.nav-list li a {
     display: block;
     color: var(--nav-text);
     padding: 10px 16px;
@@ -21,11 +30,11 @@ nav ul li a {
     transition: background-color 0.2s ease, color 0.2s ease;
 }
 
-nav ul li a:hover {
+.nav-list li a:hover {
     background-color: var(--nav-bg-hover);
 }
 
-nav ul li a.active {
+.nav-list li a.active {
     background-color: var(--nav-bg-hover);
     border-radius: 8px;
 }
@@ -101,3 +110,102 @@ nav ul li a.active {
         border-top: 1px solid var(--nav-divider);
     }
 }
+
+@media (max-width: 760px) {
+    .nav-menu-toggle {
+        width: 100%;
+        display: flex;
+        align-items: center;
+        justify-content: space-between;
+        gap: 16px;
+        border: 0;
+        background: var(--nav-bg);
+        color: var(--nav-text);
+        border-radius: 12px;
+        padding: 14px 16px;
+        font: inherit;
+        font-weight: 700;
+        cursor: pointer;
+        box-shadow: var(--shadow-soft);
+    }
+
+    .nav-menu-toggle__label {
+        letter-spacing: 0.02em;
+    }
+
+    .nav-menu-toggle__icon {
+        width: 24px;
+        height: 18px;
+        display: inline-flex;
+        flex-direction: column;
+        justify-content: space-between;
+        flex-shrink: 0;
+    }
+
+    .nav-menu-toggle__icon span {
+        width: 100%;
+        height: 2px;
+        background: currentColor;
+        border-radius: 999px;
+        transition: transform 0.2s ease, opacity 0.2s ease;
+        transform-origin: center;
+    }
+
+    .nav-menu-toggle__icon.is-open span:nth-child(1) {
+        transform: translateY(8px) rotate(45deg);
+    }
+
+    .nav-menu-toggle__icon.is-open span:nth-child(2) {
+        opacity: 0;
+    }
+
+    .nav-menu-toggle__icon.is-open span:nth-child(3) {
+        transform: translateY(-8px) rotate(-45deg);
+    }
+
+    .nav-list {
+        max-height: 0;
+        opacity: 0;
+        margin-top: 10px;
+        flex-direction: column;
+        align-items: stretch;
+        pointer-events: none;
+        transition: max-height 0.25s ease, opacity 0.2s ease;
+    }
+
+    .nav-list--open {
+        max-height: 640px;
+        opacity: 1;
+        pointer-events: auto;
+    }
+
+    .nav-list li {
+        width: 100%;
+    }
+
+    .nav-list li + li {
+        border-top: 1px solid var(--nav-divider);
+    }
+
+    .nav-list li a {
+        margin: 0;
+        padding: 14px 18px;
+        border-radius: 0;
+    }
+
+    .nav-list li a.active {
+        border-radius: 0;
+    }
+
+    .nav-status {
+        padding: 16px 18px;
+        justify-content: flex-start;
+        flex-wrap: wrap;
+        gap: 12px;
+        border-top: 1px solid var(--nav-divider);
+    }
+
+    .nav-status__text {
+        width: 100%;
+    }
+}

src/components/Navbar/Navbar.jsx

@@ -1,7 +1,10 @@
-import { NavLink } from 'react-router-dom'
+import { useEffect, useState } from 'react'
+import { NavLink, useLocation } from 'react-router-dom'
 import { useAuth } from '../../context/AuthContext.jsx'
 import './Navbar.css'
 
+const MOBILE_NAV_BREAKPOINT = 760
+
 function SunIcon() {
   return (
     <svg viewBox="0 0 24 24" aria-hidden="true">
@@ -21,22 +24,64 @@ function MoonIcon() {
 
 function Navbar({ theme, onToggleTheme }) {
   const { isAuthenticated, isSiteAdmin, logout, user } = useAuth()
+  const location = useLocation()
+  const [isMenuOpen, setIsMenuOpen] = useState(false)
   const nextThemeLabel = theme === 'dark' ? 'Switch to light' : 'Switch to dark'
 
+  useEffect(() => {
+    setIsMenuOpen(false)
+  }, [location.pathname, isAuthenticated])
+
+  useEffect(() => {
+    if (typeof window === 'undefined') {
+      return undefined
+    }
+
+    function handleResize() {
+      if (window.innerWidth > MOBILE_NAV_BREAKPOINT) {
+        setIsMenuOpen(false)
+      }
+    }
+
+    window.addEventListener('resize', handleResize)
+
+    return () => {
+      window.removeEventListener('resize', handleResize)
+    }
+  }, [])
+
+  function closeMenu() {
+    setIsMenuOpen(false)
+  }
+
   return (
-    <nav>
+    <nav className="navbar" aria-label="Primary navigation">
-      <ul>
+      <button
+        type="button"
+        className="nav-menu-toggle"
+        aria-expanded={isMenuOpen}
+        aria-controls="primary-navigation"
+        onClick={() => setIsMenuOpen(currentValue => !currentValue)}
+      >
+        <span className="nav-menu-toggle__label">Menu</span>
+        <span className={`nav-menu-toggle__icon ${isMenuOpen ? 'is-open' : ''}`} aria-hidden="true">
+          <span />
+          <span />
+          <span />
+        </span>
+      </button>
+      <ul id="primary-navigation" className={`nav-list ${isMenuOpen ? 'nav-list--open' : ''}`}>
         {isAuthenticated ? (
           <>
-            <li><NavLink to="/">Homepage</NavLink></li>
+            <li><NavLink to="/" onClick={closeMenu}>Homepage</NavLink></li>
-            <li><NavLink to="/admin">Admin</NavLink></li>
+            <li><NavLink to="/admin" onClick={closeMenu}>Admin</NavLink></li>
-            <li><NavLink to="/inventory">Inventory</NavLink></li>
+            <li><NavLink to="/inventory" onClick={closeMenu}>Inventory</NavLink></li>
-            <li><NavLink to="/search">Search</NavLink></li>
+            <li><NavLink to="/search" onClick={closeMenu}>Search</NavLink></li>
-            <li><NavLink to="/barcode">Barcode Scanner</NavLink></li>
+            <li><NavLink to="/barcode" onClick={closeMenu}>Barcode Scanner</NavLink></li>
-            {isSiteAdmin && <li><NavLink to="/users">Users</NavLink></li>}
+            {isSiteAdmin && <li><NavLink to="/users" onClick={closeMenu}>Users</NavLink></li>}
           </>
         ) : (
-          <li><NavLink to="/">Login</NavLink></li>
+          <li><NavLink to="/" onClick={closeMenu}>Login</NavLink></li>
         )}
         <li className="nav-status">
           <button
@@ -56,7 +101,12 @@ function Navbar({ theme, onToggleTheme }) {
           </button>
           <span className="nav-status__text">{isAuthenticated ? user?.email ?? 'Signed in' : 'Signed out'}</span>
           {isAuthenticated && (
-            <button type="button" className="nav-button" onClick={logout}>Sign out</button>
+            <button type="button" className="nav-button" onClick={() => {
+              closeMenu()
+              logout()
+            }}>
+              Sign out
+            </button>
           )}
         </li>
       </ul>

src/pages/SearchPage/SearchPage.jsx

@@ -192,7 +192,7 @@ function SearchPage() {
           <div className="search-container panel">
             <div className="search-form">
               <div className="form-group">
-                <label htmlFor="search-name">Item / location query</label>
+                <label htmlFor="search-name">Item / Location / Barcode Search</label>
                 <input
                   type="text"
                   id="search-name"