From 3dc7187910fcabafdff6541e1a795ec12fb5e24b Mon Sep 17 00:00:00 2001
From: Kristofers Solo <dev@kristofers.xyz>
Date: Wed, 26 Nov 2025 18:44:21 +0200
Subject: [PATCH] feat(web): add 404 page

---
 web/src/app.rs             |  8 ++++---
 web/src/main.rs            | 12 ++++++----
 web/src/pages/footer.rs    |  5 ++--
 web/src/pages/mod.rs       |  1 +
 web/src/pages/not_found.rs | 17 +++++++++++++
 web/style/main.scss        | 49 +++++++++++++++++++++++++++++++++++++-
 6 files changed, 80 insertions(+), 12 deletions(-)
 create mode 100644 web/src/pages/not_found.rs

diff --git a/web/src/app.rs b/web/src/app.rs
index 92592c5..3d56275 100644
--- a/web/src/app.rs
+++ b/web/src/app.rs
@@ -1,5 +1,7 @@
-use crate::pages::{aes::AesPage, des::DesPage, footer::Footer, header::Header, home::Home};
-use leptos::prelude::*;
+use crate::pages::{
+    aes::AesPage, des::DesPage, footer::Footer, header::Header, home::Home, not_found::NotFound,
+};
+use leptos::{prelude::*, svg::view};
 use leptos_meta::{MetaTags, Stylesheet, Title, provide_meta_context};
 use leptos_router::{
     StaticSegment,
@@ -43,7 +45,7 @@ pub fn App() -> impl IntoView {
             <div class="app-containter">
                 <Header />
                 <main>
-                    <Routes fallback=|| "Page not found.".into_view()>
+                    <Routes fallback=|| view! { <NotFound /> }>
                         <Route path=StaticSegment("/") view=Home />
                         <Route path=StaticSegment("/des") view=DesPage />
                         <Route path=StaticSegment("/aes") view=AesPage />
diff --git a/web/src/main.rs b/web/src/main.rs
index d770c44..b003dcf 100644
--- a/web/src/main.rs
+++ b/web/src/main.rs
@@ -5,9 +5,10 @@ async fn main() {
     use leptos::logging::log;
     use leptos::prelude::*;
     use leptos_axum::{LeptosRoutes, generate_route_list};
+    use tokio::net::TcpListener;
     use web::app::*;
 
-    let conf = get_configuration(None).unwrap();
+    let conf = get_configuration(None).expect("Valid config file");
     let addr = conf.leptos_options.site_addr;
     let leptos_options = conf.leptos_options;
     // Generate the list of routes in your Leptos App
@@ -24,10 +25,11 @@ async fn main() {
     // run our app with hyper
     // `axum::Server` is a re-export of `hyper::Server`
     log!("listening on http://{}", &addr);
-    let listener = tokio::net::TcpListener::bind(&addr).await.unwrap();
-    axum::serve(listener, app.into_make_service())
-        .await
-        .unwrap();
+    if let Ok(listener) = TcpListener::bind(&addr).await {
+        axum::serve(listener, app.into_make_service())
+            .await
+            .expect("valid serving");
+    }
 }
 
 #[cfg(not(feature = "ssr"))]
diff --git a/web/src/pages/footer.rs b/web/src/pages/footer.rs
index d91a653..602c17f 100644
--- a/web/src/pages/footer.rs
+++ b/web/src/pages/footer.rs
@@ -1,5 +1,4 @@
 use leptos::prelude::*;
-use leptos_router::components::A;
 
 #[component]
 pub fn Footer() -> impl IntoView {
@@ -12,9 +11,9 @@ pub fn Footer() -> impl IntoView {
                     "No data is transmitted to any server. You can verify this by disconnecting your internet connection."
                 </p>
                 <div class="footer-links">
-                    <A href="https://github.com/kristoferssolo/cipher-workshop" target="_blank">
+                    <a href="https://github.com/kristoferssolo/cipher-workshop" target="_blank">
                         "View Source on GitHub"
-                    </A>
+                    </a>
                 </div>
             </div>
         </footer>
diff --git a/web/src/pages/mod.rs b/web/src/pages/mod.rs
index 19183cc..21c85c1 100644
--- a/web/src/pages/mod.rs
+++ b/web/src/pages/mod.rs
@@ -3,3 +3,4 @@ pub mod des;
 pub mod footer;
 pub mod header;
 pub mod home;
+pub mod not_found;
diff --git a/web/src/pages/not_found.rs b/web/src/pages/not_found.rs
new file mode 100644
index 0000000..871a799
--- /dev/null
+++ b/web/src/pages/not_found.rs
@@ -0,0 +1,17 @@
+use leptos::prelude::*;
+#[component]
+pub fn NotFound() -> impl IntoView {
+    view! {
+        <div class="not-found-container">
+            <div class="error-code">"404"</div>
+            <h1>"Page Not Found"</h1>
+            <p>"The data you are looking for has been encrypted into the void."</p>
+            <div class="binary-decoration">
+                "01000100 01000101 01000001 01000100 00100000 01001100 01001001 01001110 01001011"
+            </div>
+            <a href="/" class="btn-primary btn-link">
+                "Return to Home"
+            </a>
+        </div>
+    }
+}
diff --git a/web/style/main.scss b/web/style/main.scss
index 4fd42e8..023ae87 100644
--- a/web/style/main.scss
+++ b/web/style/main.scss
@@ -150,7 +150,7 @@ main {
 .app-footer {
   margin-top: auto;
   padding: 2rem 0;
-  border-top: 1px solid var(--border);
+  border-top: 2px solid var(--border);
   background: var(--bg-card);
   text-align: center;
   font-size: 0.9rem;
@@ -537,3 +537,50 @@ main {
   color: var(--text-main);
   font-weight: 500;
 }
+
+.not-found-container {
+  text-align: center;
+  padding: 4rem 1rem;
+  max-width: 600px;
+  margin: 0 auto;
+  animation: fadeIn 0.5s ease-out;
+
+  .error-code {
+    font-size: 6rem;
+    font-weight: 800;
+    color: var(--error);
+    font-family: "Consolar", "Monaco", monospace;
+    opacity: 0.8;
+    line-height: 1;
+    margin-bottom: 1rem;
+    text-shadow: 4px 4px 0px rgba(0, 0, 0, 0.1);
+  }
+
+  h1 {
+    font-size: 2rem;
+    color: var(--text-main);
+    margin-bottom: 1rem;
+  }
+
+  p {
+    color: var(--text-muted);
+    font-size: 1.1rem;
+    margin-bottom: 2rem;
+  }
+
+  .binary-decoration {
+    font-family: "Consolas", "Monaco", monospace;
+    color: var(--text-muted);
+    font-size: 0.85rem;
+    opacity: 0.5;
+    margin-bottom: 2.5rem;
+    word-break: break-all;
+  }
+}
+
+.btn-link {
+  text-decoration: none;
+  display: inline-block;
+  width: auto;
+  text-align: center;
+}