refactor index.html for improved accessibility and clarity; update meta tags, image attributes, and content descriptions

Author: cak

index.html

@@ -10,9 +10,8 @@
       content="TypeError is a collection of open-source cybersecurity projects built to help defenders understand and reduce risk."
     />
     <link rel="canonical" href="https://typeerror.com/" />
-    <meta name="color-scheme" content="light dark" />
-    <meta name="theme-color" content="#fafafa" media="(prefers-color-scheme: light)" />
-    <meta name="theme-color" content="#0e0e0e" media="(prefers-color-scheme: dark)" />
+    <meta name="color-scheme" content="dark" />
+    <meta name="theme-color" content="#05070a" />
 
     <!-- Social previews -->
     <meta property="og:title" content="TypeError" />
@@ -40,39 +39,41 @@
       <header class="hero">
         <img
           src="assets/typeerror-glitch.png"
-          alt="TypeError logo"
+          alt=""
           class="logo-mark"
-          width="320"
-          height="220"
+          width="1536"
+          height="1024"
           fetchpriority="high"
           decoding="async"
         />
         <h1 class="name">TypeError</h1>
         <p class="tagline">
-          <span class="lead">Turning code into clearer security.</span><br />
+          <span class="lead">Turning code into clearer security.</span>
           <span class="subtitle">
             Open-source cybersecurity engineering. Data-driven, practical, and built for defenders.
           </span>
         </p>
       </header>
 
-      <article class="bio">
+      <article class="bio" aria-labelledby="about-typeerror">
+        <h2 id="about-typeerror" class="sr-only">About TypeError</h2>
+
         <p>
-          TypeError is a collection of cybersecurity projects built to help defenders understand and
-          reduce risk. The repositories span application security, vulnerability management, and
-          data science by transforming raw data into metrics that drive real decisions.
+          TypeError is a collection of open-source cybersecurity projects built to help defenders
+          understand and reduce risk. The work spans application security, vulnerability management,
+          and security data science, turning raw data into tools and metrics that drive better
+          decisions.
         </p>
 
         <p>
-          Each project is engineered with the same principles that define good security: clarity,
-          reliability, and scalability. From command-line tools to web framework plugins and data
-          visualization libraries, TypeError projects aim to make security easier to explain,
-          automate, and trust.
+          The goal is simple: make security work easier to measure, explain, and improve. From
+          command-line tools to framework integrations and data analysis libraries, TypeError
+          focuses on practical engineering for defenders who need signal, not noise.
         </p>
 
         <p>
-          TypeError exists to advance measurable, data-driven defense through open engineering.
-          Explore the projects, fork the code, and help make security a little more precise.
+          TypeError exists to advance clearer, more measurable defense through open-source
+          engineering. Explore the projects, use the code, and build on it.
         </p>
       </article>