center text inside .mobile-menu vertically

404.html

@@ -59,6 +59,13 @@
 			  <span class="visually-hidden">Home page</span>
 			</a>
 		  
+			<nav class="desktop-nav" aria-label="Primary navigation">
+			  <ul>
+				<li><a href="/" class="menu-button">Work</a></li>
+				<li><a href="/about.html" class="menu-button">About</a></li>
+				<li><a href="/privacy.html" class="menu-button">Blog</a></li>
+			  </ul>
+			</nav>
 		  </div>
 		  
 		  <div class="menu-right">
@@ -74,10 +81,45 @@
 			</ul>
 		  </nav>
 	  
+		  <button
+			class="menu-toggle"
+			id="menuToggle"
+			type="button"
+			aria-expanded="false"
+			aria-controls="mobileMenu"
+			aria-haspopup="true"
+			aria-label="Open menu"
+		  >
+			Menu
+		  </button>
 		  </div>
 		</div>
 	  </header>
 	  
+	  <div class="menu-overlay" id="menuOverlay" hidden></div>
+	  
+	  <aside
+		class="mobile-menu"
+		id="mobileMenu"
+		aria-label="Mobile navigation"
+		aria-hidden="true"
+	  >
+		<div class="mobile-menu__header">
+		  <strong>Menu</strong>
+		  <button class="menu-close" id="menuClose" type="button" aria-label="Close menu">
+			Close
+		  </button>
+		</div>
+	  
+		<nav aria-label="Mobile navigation">
+		  <ul>
+			<li><a href="/" class="button-primary" aria-current="page">Work</a></li>
+			<li><a href="/legal-notice.html" class="button-primary">About</a></li>
+			<li><a href="/privacy.html" class="button-primary">Blog</a></li>
+		  </ul>
+		</nav>
+	  </aside>
+
 	<main>
 		<section>
 			<h1>4💀4</h1>

css/style.css

@@ -189,10 +189,6 @@
   --shadow-button: inset 0px 1px 2px rgba(0, 0, 0, 0.16), inset 0px -1px 4px rgba(0, 0, 0, 0.28), var(--shadow-box);
   --shadow-button-active: inset 0px -1px 2px rgba(0, 0, 0, 0.16), inset 0px 1px 4px rgba(0, 0, 0, 0.28), var(--shadow-box);
 
-  --border: #d8d8d8;
-  --overlay: rgb(12 12 12 / 0.24);
-  --panel: rgb(255 255 255 / 0.76);
-  
 }
 
 *,
@@ -208,6 +204,7 @@ html,
 body {
   margin: 0;
   background: var(--color-background);
+  scroll-padding-top: 8rem; /* https://tetralogical.com/blog/2023/06/08/focus-in-view/ */
 }
 
 html {
@@ -235,7 +232,6 @@ h4,
 h5,
 h6,
 p {
-  scroll-margin-top: 80px;
   width: clamp(min(100%, 40ch), 50ch, min(100%, 60ch));
 }
 
@@ -371,10 +367,10 @@ a:hover {
   text-decoration-thickness: 0.175rem;
 }
 
-a:visited {
+/* a:visited {
   color: var(--color-primary);
   text-decoration-thickness: 0.175rem;
-}
+} */
 
 button, .button-primary, .button-secondary, .menu-button, .logo {
   appearance: none;
@@ -425,9 +421,10 @@ button, .button-primary, .logo {
   fill: currentColor;
 }
 
+@media (hover: hover) {
 button:hover, .button-primary:hover, .button-secondary:hover, .logo:hover {
   text-decoration: none;
-  transform: scale(1.05);
+  transform: scale(1.04);
 }
 
 button:hover, .button-primary:hover, .logo:hover {
@@ -439,11 +436,12 @@ button:hover, .button-primary:hover, .logo:hover {
   background: var(--color-button-secondary-hover);
   color: var(--color-text-button-secondary-hover);
 }
+}
 
 button:active, .button-primary:active, .button-secondary:active, .logo:active {
   box-shadow: var(--shadow-button-active);
   text-decoration: none;
-  transform: scale(1.05);
+  transform: scale(1.00);
 }
 
 button:active, .button-primary:active, .logo:active {
@@ -456,7 +454,7 @@ button:active, .button-primary:active, .logo:active {
   color: var(--color-text-button-secondary-active);
 }
 
-button:visited, .button-primary:visited, .logo:visited {
+/* button:visited, .button-primary:visited, .logo:visited {
   background: var(--color-button-primary);
   color: var(--color-text-button-primary);
   text-decoration: none;
@@ -466,7 +464,7 @@ button:visited, .button-primary:visited, .logo:visited {
   background: var(--color-button-secondary);
   color: var(--color-text-button-secondary);
   text-decoration: none;
-}
+} */
 
 .button-primary span {
   margin-right: 0.3em;
@@ -485,7 +483,7 @@ button:visited, .button-primary:visited, .logo:visited {
   position: sticky;
   top: 0;
   padding-top: max(1px, env(safe-area-inset-top));
-  z-index: 100;
+  z-index: 400;
   background-image: linear-gradient(
     180deg,
     light-dark(var(--gradient-stop-1-light), var(--gradient-stop-1-dark)) 0%,
@@ -496,6 +494,9 @@ button:visited, .button-primary:visited, .logo:visited {
     76%,
     light-dark(var(--gradient-stop-4-light), var(--gradient-stop-4-dark)) 100%
   );
+  /* background: rgb(255 255 255 / 0.88); */
+  /* backdrop-filter: blur(10px);
+  -webkit-backdrop-filter: blur(10px); */
 }
 
 .menu-bar {
@@ -603,6 +604,89 @@ button:visited, .button-primary:visited, .logo:visited {
   display: block;
 }
 
+.menu-toggle {
+  position: relative;
+  display: none;
+  align-items: center;
+  justify-content: center;
+  justify-self: end;
+  align-self: stretch;
+  transition: transform 0.25s ease, opacity 0.25s ease;
+}
+
+.menu-overlay {
+  position: fixed;
+  inset: 0;
+  background: light-dark(rgb(247 247 247 / 0.4), rgb(18 18 18 / 0.4));
+  backdrop-filter: blur(8px);
+  -webkit-backdrop-filter: blur(8px);
+  opacity: 0;
+  pointer-events: none;
+  transition: opacity 0.25s ease;
+  z-index: 200;
+}
+
+.mobile-menu {
+  position: fixed;
+  top: 7rem;
+  right: var(--spacing-5);
+  left: var(--spacing-5);
+  width: auto;
+  max-width: none;
+  max-height: calc(100dvh - 7.5rem);
+  overflow-y: auto;
+  margin-inline: 0;
+  background: var(--color-button-secondary);
+  border-radius: calc(36px + var(--spacing-2));
+  box-shadow: var(--shadow-button);
+  padding: 0;
+  opacity: 0;
+  transform: translateY(1rem) scale(0.98);
+  pointer-events: none;
+  transition: opacity 0.25s ease, transform 0.25s ease;
+  z-index: 300;
+}
+
+.mobile-menu ul {
+  display: grid;
+  width: 100%;
+  margin: 0;
+  padding: var(--spacing-2);
+  list-style: none;
+  gap: var(--spacing-2);
+}
+
+.mobile-menu li {
+  margin: 0;
+  padding: 0;
+  list-style: none;
+}
+
+.mobile-menu a {
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  text-align: center;
+  min-height: 72px;
+  border-radius: 36px;
+}
+
+/* .page-content {
+  padding: 3rem 1.25rem;
+} */
+
+.menu-open .menu-overlay {
+  opacity: 1;
+  pointer-events: auto;
+}
+
+.menu-open .mobile-menu {
+  opacity: 1;
+  transform: translateY(0) scale(1);
+  pointer-events: auto;
+}
+
+
 /* Maint content */
 
 main, footer {
@@ -886,6 +970,47 @@ footer a:visited {
   }
 }
 
+@media (max-width: 579px) {  
+  .desktop-nav {
+    display: none;
+  }
+  
+  .menu-toggle {
+  display: inline-flex;
+  justify-self: end;
+  min-height: 52px;
+  }
+  
+  .menu-bar {
+  display: grid;
+  grid-template-columns: 1fr auto 1fr;
+  align-items: center;
+  }
+  
+  .menu-left {
+  justify-self: start;
+  }
+  
+  .menu-right {
+  display: contents;
+  }
+  
+  .desktop-nav-secondary {
+  justify-self: center;
+  }
+  
+  .desktop-nav-secondary ul {
+  justify-content: center;
+  }
+}
+
+@media (min-width: 580px) {
+  .menu-overlay,
+  .mobile-menu {
+    display: none;
+  }
+}
+
 @media screen and (max-width:440px) {
   .menu-bar {
     padding: var(--spacing-4) var(--spacing-5) var(--spacing-4) var(--spacing-5);
@@ -915,6 +1040,10 @@ footer a:visited {
   .menu-bar {
     gap: var(--spacing-3);
   }
+  .mobile-menu {
+    right: var(--spacing-4);
+    left: var(--spacing-4);
+  }
 }
 
 @media print,

index.html

@@ -40,6 +40,14 @@
           <svg xmlns="http://www.w3.org/2000/svg" id="Layer_1" data-name="Layer 1" aria-hidden="true" focusable="false" viewBox="0 0 1080 1080"><path d="M1000.022 50H499.59c-20.565 0-34.827 20.502-27.676 39.783l146.561 395.171c8.419 22.699 40.635 22.382 48.605-.478l61.821-177.315c6.903-19.8 34.906-19.8 41.809 0l61.821 177.315c7.97 22.861 40.187 23.178 48.605.478l146.561-395.171c7.151-19.281-7.112-39.783-27.676-39.783Z"/><path d="M360 538V106c0-30.928-25.072-56-56-56H106c-30.928 0-56 25.072-56 56v868c0 30.928 25.072 56 56 56h868c30.928 0 56-25.072 56-56V650c0-30.928-25.072-56-56-56H416c-30.928 0-56-25.072-56-56"/></svg>
           <span class="visually-hidden">Home page</span>
         </a>
+      
+        <nav class="desktop-nav" aria-label="Primary navigation">
+          <ul>
+            <li><a href="/" class="menu-button" aria-current="page">Work</a></li>
+            <li><a href="/about.html" class="menu-button">About</a></li>
+            <li><a href="/privacy.html" class="menu-button">Blog</a></li>
+          </ul>
+        </nav>
       </div>
       
       <div class="menu-right">
@@ -54,10 +62,40 @@
             </svg><span class="visually-hidden">Change light/dark mode</span></button></li>
         </ul>
       </nav>
+  
+      <button
+        class="menu-toggle"
+        id="menuToggle"
+        type="button"
+        aria-expanded="false"
+        aria-controls="mobileMenu"
+        aria-haspopup="true"
+        aria-label="Open menu"
+      >
+        <span class="menu-toggle__label">Menu</span>
+      </button>
       </div>
     </div>
   </header>
   
+  <div class="menu-overlay" id="menuOverlay" hidden></div>
+  
+  <aside
+    class="mobile-menu"
+    id="mobileMenu"
+    aria-label="Mobile navigation"
+    aria-hidden="true"
+  >
+  
+    <nav aria-label="Mobile navigation">
+      <ul>
+        <li><a href="/" class="menu-button" aria-current="page">Work</a></li>
+        <li><a href="/legal-notice.html" class="menu-button">About</a></li>
+        <li><a href="/privacy.html" class="menu-button">Blog</a></li>
+      </ul>
+    </nav>
+  </aside>
+  
   <main id="siteContent" class="page-content">
     
     <!--  target="_blank" rel="noopener noreferrer"  -->

js/app.js

@@ -1,3 +1,65 @@
+// Menu system
+
+  const body = document.body;
+  const menuToggle = document.getElementById('menuToggle');
+  const menuToggleLabel = menuToggle?.querySelector('.menu-toggle__label');
+  const menuOverlay = document.getElementById('menuOverlay');
+  const mobileMenu = document.getElementById('mobileMenu');
+  const siteContent = document.getElementById('siteContent');
+
+  function openMenu() {
+	body.classList.add('menu-open');
+	menuOverlay.hidden = false;
+	menuToggle.classList.add('is-open');
+	menuToggle.setAttribute('aria-expanded', 'true');
+	menuToggle.setAttribute('aria-label', 'Close menu');
+	if (menuToggleLabel) menuToggleLabel.textContent = 'Close';
+	mobileMenu.setAttribute('aria-hidden', 'false');
+	siteContent.setAttribute('inert', '');
+	menuToggle.focus({ preventScroll: true });
+  }
+
+  function closeMenu() {
+	body.classList.remove('menu-open');
+	menuToggle.classList.remove('is-open');
+	menuToggle.setAttribute('aria-expanded', 'false');
+	menuToggle.setAttribute('aria-label', 'Open menu');
+	if (menuToggleLabel) menuToggleLabel.textContent = 'Menu';
+	mobileMenu.setAttribute('aria-hidden', 'true');
+	siteContent.removeAttribute('inert');
+	menuToggle.focus({ preventScroll: true });
+
+	window.setTimeout(() => {
+	  if (!body.classList.contains('menu-open')) {
+		menuOverlay.hidden = true;
+	  }
+	}, 250);
+  }
+
+  function toggleMenu() {
+	if (body.classList.contains('menu-open')) {
+	  closeMenu();
+	} else {
+	  openMenu();
+	}
+  }
+
+  menuToggle.addEventListener('click', toggleMenu);
+  menuOverlay.addEventListener('click', closeMenu);
+
+  document.addEventListener('keydown', (event) => {
+	if (event.key === 'Escape' && body.classList.contains('menu-open')) {
+	  closeMenu();
+	}
+  });
+
+  window.addEventListener('resize', () => {
+	if (window.innerWidth >= 768 && body.classList.contains('menu-open')) {
+	  closeMenu();
+	}
+  });
+  
+  
 // accessibility toggle
 
 {