diff --git a/templates/marketing/base.html b/templates/marketing/base.html
index 8cce38c..6db7a02 100644
--- a/templates/marketing/base.html
+++ b/templates/marketing/base.html
@@ -261,28 +261,66 @@
             color: var(--tp-gold);
             font-weight: 600;
         }
+
+        /* ── WCAG 2.1 Level A ── */
+        .skip-link {
+            position: absolute;
+            top: -100%;
+            left: 0;
+            background: var(--tp-gold);
+            color: var(--tp-bg);
+            padding: 0.5rem 1rem;
+            z-index: 10000;
+            font-size: 0.85rem;
+            font-weight: 600;
+            text-decoration: none;
+        }
+
+        .skip-link:focus {
+            top: 0;
+        }
+
+        :focus-visible {
+            outline: 2px solid var(--tp-gold);
+            outline-offset: 2px;
+        }
+
+        .sr-only {
+            position: absolute;
+            width: 1px;
+            height: 1px;
+            padding: 0;
+            margin: -1px;
+            overflow: hidden;
+            clip: rect(0, 0, 0, 0);
+            white-space: nowrap;
+            border: 0;
+        }
     </style>
 
     {% block extra_css %}{% endblock %}
 </head>
 <body>
+    <!-- WCAG 2.4.1: Skip navigation -->
+    <a href="#main-content" class="skip-link">Skip to main content</a>
+
     <!-- Labs Banner -->
-    <div class="labs-banner">
+    <div class="labs-banner" role="status" aria-label="Alpha status notice">
         TIMEPOINT LABS &middot; ALPHA DEMO &middot; NOT A LIVE PRODUCT &middot;
-        <a href="https://docs.timepointai.com/products/proteus" target="_blank">Read the docs</a>
+        <a href="https://docs.timepointai.com/products/proteus" target="_blank" rel="noopener noreferrer">Read the docs<span class="sr-only"> (opens in new tab)</span></a>
     </div>
 
     <div class="main-content">
         <!-- Navigation -->
-        <nav class="navbar navbar-expand-lg">
+        <nav class="navbar navbar-expand-lg" aria-label="Main navigation">
             <div class="container">
                 <a class="navbar-brand" href="{{ url_for('marketing.index') }}">
-                    <img src="{{ url_for('static', filename='images/timepoint-glyph.svg') }}" alt="Timepoint" width="32" height="32">
+                    <img src="{{ url_for('static', filename='images/timepoint-glyph.svg') }}" alt="" width="32" height="32" aria-hidden="true">
                     <span class="brand-wordmark">TIMEPOINT</span>
-                    <span class="brand-divider">/</span>
+                    <span class="brand-divider" aria-hidden="true">/</span>
                     <span class="brand-product">Proteus</span>
                 </a>
-                <button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarNav">
+                <button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarNav" aria-controls="navbarNav" aria-expanded="false" aria-label="Toggle navigation">
                     <span class="navbar-toggler-icon"></span>
                 </button>
                 <div class="collapse navbar-collapse" id="navbarNav">
@@ -300,11 +338,11 @@
                             <a class="nav-link" href="{{ url_for('marketing.whitepaper') }}">Whitepaper</a>
                         </li>
                         <li class="nav-item">
-                            <a class="nav-link" href="https://docs.timepointai.com/products/proteus" target="_blank">Docs</a>
+                            <a class="nav-link" href="https://docs.timepointai.com/products/proteus" target="_blank" rel="noopener noreferrer">Docs<span class="sr-only"> (opens in new tab)</span></a>
                         </li>
                         <li class="nav-item">
                             <a class="nav-link" href="{{ url_for('marketing.demo') }}">
-                                <i class="fas fa-play-circle me-1"></i> Demo
+                                <i class="fas fa-play-circle me-1" aria-hidden="true"></i> Demo
                             </a>
                         </li>
                     </ul>
@@ -318,34 +356,36 @@
                 {% for category, message in messages %}
                     <div class="alert alert-{{ 'danger' if category == 'error' else category }} alert-dismissible fade show" role="alert">
                         {{ message }}
-                        <button type="button" class="btn-close" data-bs-dismiss="alert"></button>
+                        <button type="button" class="btn-close" data-bs-dismiss="alert" aria-label="Close notification"></button>
                     </div>
                 {% endfor %}
             {% endif %}
         {% endwith %}
 
         <!-- Main Content -->
+        <main id="main-content">
         {% block content %}{% endblock %}
+        </main>
 
         <!-- Footer -->
-        <footer class="footer">
+        <footer class="footer" aria-label="Site footer">
             <div class="container text-center">
                 <div class="mb-3">
-                    <img src="{{ url_for('static', filename='images/timepoint-full-alpha.svg') }}" alt="Timepoint Alpha" height="28">
+                    <img src="{{ url_for('static', filename='images/timepoint-full-alpha.svg') }}" alt="Timepoint AI — Alpha" height="28">
                 </div>
                 <p class="mb-2" style="color: var(--text-muted); font-size: 0.85rem;">
-                    Proteus is a <a href="https://docs.timepointai.com/" target="_blank" class="text-decoration-none" style="color: var(--tp-gold);">Timepoint AI</a> Labs project.
+                    Proteus is a <a href="https://docs.timepointai.com/" target="_blank" rel="noopener noreferrer" class="text-decoration-none" style="color: var(--tp-gold);">Timepoint AI<span class="sr-only"> (opens in new tab)</span></a> Labs project.
                     Open source under MIT.
                 </p>
                 <div class="d-flex gap-4 justify-content-center mb-3" style="font-size: 0.85rem;">
-                    <a href="https://github.com/timepointai/proteus" target="_blank" class="text-decoration-none" style="color: var(--text-muted);">
-                        <i class="fab fa-github me-1"></i> GitHub
+                    <a href="https://github.com/timepointai/proteus" target="_blank" rel="noopener noreferrer" class="text-decoration-none" style="color: var(--text-muted);">
+                        <i class="fab fa-github me-1" aria-hidden="true"></i> GitHub<span class="sr-only"> (opens in new tab)</span>
                     </a>
-                    <a href="https://docs.timepointai.com/" target="_blank" class="text-decoration-none" style="color: var(--text-muted);">
-                        <i class="fas fa-book me-1"></i> Docs
+                    <a href="https://docs.timepointai.com/" target="_blank" rel="noopener noreferrer" class="text-decoration-none" style="color: var(--text-muted);">
+                        <i class="fas fa-book me-1" aria-hidden="true"></i> Docs<span class="sr-only"> (opens in new tab)</span>
                     </a>
-                    <a href="https://x.com/timaborasu" target="_blank" class="text-decoration-none" style="color: var(--text-muted);">
-                        <i class="fab fa-x-twitter me-1"></i> @timaborasu
+                    <a href="https://x.com/timaborasu" target="_blank" rel="noopener noreferrer" class="text-decoration-none" style="color: var(--text-muted);">
+                        <i class="fab fa-x-twitter me-1" aria-hidden="true"></i> @timaborasu<span class="sr-only"> on X (opens in new tab)</span>
                     </a>
                 </div>
                 <p class="small" style="color: rgba(138, 132, 116, 0.5);">
diff --git a/templates/marketing/index.html b/templates/marketing/index.html
index 11e7e9f..836fb9b 100644
--- a/templates/marketing/index.html
+++ b/templates/marketing/index.html
@@ -322,8 +322,8 @@ <h1 class="hero-title">
                     <a href="{{ url_for('marketing.demo') }}" class="btn btn-outline-light btn-lg">
                         TRY THE DEMO
                     </a>
-                    <a href="https://github.com/timepointai/proteus" target="_blank" class="btn btn-outline-light btn-lg">
-                        <i class="fab fa-github me-1"></i> VIEW SOURCE
+                    <a href="https://github.com/timepointai/proteus" target="_blank" rel="noopener noreferrer" class="btn btn-outline-light btn-lg">
+                        <i class="fab fa-github me-1" aria-hidden="true"></i> VIEW SOURCE<span class="sr-only"> on GitHub (opens in new tab)</span>
                     </a>
                 </div>
             </div>
@@ -503,7 +503,7 @@ <h2 class="display-6 mb-3" style="font-weight: 300; letter-spacing: 1px;">
                     THE <span class="gradient-text">TIMEPOINT</span> ECOSYSTEM
                 </h2>
                 <p style="color: var(--text-muted); margin-bottom: 2.5rem; max-width: 680px;">
-                    Proteus is one piece of <a href="https://docs.timepointai.com/" target="_blank" style="color: var(--tp-gold);">Timepoint AI</a>'s
+                    Proteus is one piece of <a href="https://docs.timepointai.com/" target="_blank" rel="noopener noreferrer" style="color: var(--tp-gold);">Timepoint AI<span class="sr-only"> (opens in new tab)</span></a>'s
                     open-source infrastructure for temporal reasoning.
                     It validates predictions against reality &mdash; the scoring layer for Timepoint's rendered futures.
                 </p>
@@ -576,24 +576,24 @@ <h2 class="display-6 mb-3" style="font-weight: 300; letter-spacing: 1px;">
                     <div class="col-md-6 status-col">
                         <h5 style="color: #00c850;">Built</h5>
                         <ul class="status-list">
-                            <li><span class="status-check">&#10003;</span> Full market lifecycle: create, predict, resolve, claim</li>
-                            <li><span class="status-check">&#10003;</span> On-chain Levenshtein distance (PredictionMarketV2)</li>
-                            <li><span class="status-check">&#10003;</span> 259+ passing tests (109 contract, 135 unit, 15 integration)</li>
-                            <li><span class="status-check">&#10003;</span> Deployed on BASE Sepolia testnet</li>
-                            <li><span class="status-check">&#10003;</span> Flask web app + admin resolution dashboard</li>
-                            <li><span class="status-check">&#10003;</span> JWT wallet auth (MetaMask) + email OTP</li>
-                            <li><span class="status-check">&#10003;</span> Open source (MIT) at <a href="https://github.com/timepointai/proteus" target="_blank" style="color: var(--tp-gold);">GitHub</a></li>
+                            <li><span class="status-check" aria-hidden="true">&#10003;</span> Full market lifecycle: create, predict, resolve, claim</li>
+                            <li><span class="status-check" aria-hidden="true">&#10003;</span> On-chain Levenshtein distance (PredictionMarketV2)</li>
+                            <li><span class="status-check" aria-hidden="true">&#10003;</span> 259+ passing tests (109 contract, 135 unit, 15 integration)</li>
+                            <li><span class="status-check" aria-hidden="true">&#10003;</span> Deployed on BASE Sepolia testnet</li>
+                            <li><span class="status-check" aria-hidden="true">&#10003;</span> Flask web app + admin resolution dashboard</li>
+                            <li><span class="status-check" aria-hidden="true">&#10003;</span> JWT wallet auth (MetaMask) + email OTP</li>
+                            <li><span class="status-check" aria-hidden="true">&#10003;</span> Open source (MIT) at <a href="https://github.com/timepointai/proteus" target="_blank" rel="noopener noreferrer" style="color: var(--tp-gold);">GitHub<span class="sr-only"> (opens in new tab)</span></a></li>
                         </ul>
                     </div>
                     <div class="col-md-6 status-col">
                         <h5 style="color: #666;">Not Done Yet</h5>
                         <ul class="status-list">
-                            <li><span class="status-pending">&ndash;</span> External security audit</li>
-                            <li><span class="status-pending">&ndash;</span> Production wallet integration</li>
-                            <li><span class="status-pending">&ndash;</span> Decentralized oracle resolution</li>
-                            <li><span class="status-pending">&ndash;</span> Mainnet deployment</li>
-                            <li><span class="status-pending">&ndash;</span> Production monitoring</li>
-                            <li><span class="status-pending">&ndash;</span> TDF integration / SNAG-Bench scoring</li>
+                            <li><span class="status-pending" aria-hidden="true">&ndash;</span> External security audit</li>
+                            <li><span class="status-pending" aria-hidden="true">&ndash;</span> Production wallet integration</li>
+                            <li><span class="status-pending" aria-hidden="true">&ndash;</span> Decentralized oracle resolution</li>
+                            <li><span class="status-pending" aria-hidden="true">&ndash;</span> Mainnet deployment</li>
+                            <li><span class="status-pending" aria-hidden="true">&ndash;</span> Production monitoring</li>
+                            <li><span class="status-pending" aria-hidden="true">&ndash;</span> TDF integration / SNAG-Bench scoring</li>
                         </ul>
                         <p style="color: #555; font-size: 0.85rem; margin-top: 1.5rem;">
                             These are the things that would need to exist before this becomes a real product. We're not there yet.
@@ -624,11 +624,11 @@ <h3 style="font-weight: 300; margin-bottom: 1rem;">
                         <a href="{{ url_for('marketing.demo') }}" class="btn btn-primary">
                             TRY THE DEMO
                         </a>
-                        <a href="https://github.com/timepointai/proteus" target="_blank" class="btn btn-outline-light">
-                            <i class="fab fa-github me-1"></i> CONTRIBUTE
+                        <a href="https://github.com/timepointai/proteus" target="_blank" rel="noopener noreferrer" class="btn btn-outline-light">
+                            <i class="fab fa-github me-1" aria-hidden="true"></i> CONTRIBUTE<span class="sr-only"> on GitHub (opens in new tab)</span>
                         </a>
-                        <a href="https://docs.timepointai.com/products/proteus" target="_blank" class="btn btn-outline-light">
-                            <i class="fas fa-book me-1"></i> READ THE DOCS
+                        <a href="https://docs.timepointai.com/products/proteus" target="_blank" rel="noopener noreferrer" class="btn btn-outline-light">
+                            <i class="fas fa-book me-1" aria-hidden="true"></i> READ THE DOCS<span class="sr-only"> (opens in new tab)</span>
                         </a>
                     </div>
                     <p style="color: #555; font-size: 0.75rem; margin-bottom: 0;">
