feat: add accessible documentation design foundation

app/styles/global.css

@@ -47,6 +47,24 @@ body {
 a {
   color: inherit;
 }
+.skip-link {
+  position: fixed;
+  z-index: 100;
+  top: 0.5rem;
+  left: 0.5rem;
+  transform: translateY(-160%);
+  padding: 0.75rem 1rem;
+  border-radius: 0.5rem;
+  color: white;
+  background: var(--brand-strong);
+}
+.skip-link:focus {
+  transform: translateY(0);
+}
+:focus-visible {
+  outline: 3px solid var(--brand);
+  outline-offset: 3px;
+}
 .docs-shell {
   position: relative;
   isolation: isolate;
@@ -153,6 +171,129 @@ a {
     border-color 0.18s ease,
     box-shadow 0.18s ease;
 }
+.preview-pill {
+  justify-self: end;
+  color: var(--brand-strong);
+  font-size: 0.78rem;
+  font-weight: 800;
+  text-decoration: none;
+}
+.mobile-doc-nav {
+  display: none;
+  padding: 0.75rem 20px;
+  border-bottom: 1px solid var(--border);
+  background: var(--surface);
+}
+.mobile-doc-nav summary {
+  cursor: pointer;
+  font-weight: 700;
+}
+.mobile-doc-nav nav {
+  display: grid;
+  gap: 0.6rem;
+  padding: 1rem 0 0.25rem;
+}
+.portal-main {
+  width: min(1240px, 100%);
+  margin: 0 auto;
+  padding: 1rem clamp(20px, 4vw, 72px) 6rem;
+}
+.breadcrumbs {
+  display: flex;
+  flex-wrap: wrap;
+  gap: 0.5rem;
+  padding: 1rem 0;
+  color: var(--muted);
+  font-size: 0.8rem;
+}
+.portal-hero {
+  min-height: 650px;
+}
+.status {
+  display: inline-flex;
+  align-items: center;
+  gap: 0.45rem;
+  width: fit-content;
+  border: 1px solid var(--border);
+  border-radius: 999px;
+  padding: 0.35rem 0.65rem;
+  font-size: 0.75rem;
+  font-weight: 800;
+}
+.status-beta {
+  color: #7c3aed;
+  background: color-mix(in srgb, #8b5cf6 10%, var(--surface));
+}
+.status-planned {
+  color: #a16207;
+  background: color-mix(in srgb, #eab308 12%, var(--surface));
+}
+.access-note {
+  font-size: 0.86rem !important;
+}
+.access-callout {
+  margin: 2rem 0;
+  border: 1px solid var(--brand);
+  border-radius: 14px;
+  padding: 1.25rem;
+  background: color-mix(in srgb, var(--brand) 7%, var(--surface));
+}
+.access-callout h2 {
+  margin-top: 0;
+  font-size: 1.2rem;
+}
+.lifecycle {
+  display: grid;
+  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
+  gap: 0.75rem;
+  padding: 0;
+  list-style: none;
+}
+.lifecycle li {
+  display: grid;
+  gap: 0.45rem;
+  border: 1px solid var(--border);
+  border-radius: 12px;
+  padding: 1rem;
+  background: var(--surface);
+}
+.lifecycle span {
+  color: var(--muted);
+  font-size: 0.82rem;
+}
+.coverage-list {
+  display: grid;
+  gap: 0.75rem;
+}
+.coverage-list article {
+  display: flex;
+  justify-content: space-between;
+  gap: 1rem;
+  align-items: center;
+  border-bottom: 1px solid var(--border);
+}
+.local-toc {
+  display: flex;
+  flex-wrap: wrap;
+  gap: 0.75rem;
+  border: 1px solid var(--border);
+  border-radius: 12px;
+  padding: 1rem;
+}
+.copy-button {
+  min-width: 44px;
+  min-height: 44px;
+  border: 1px solid #64748b;
+  border-radius: 8px;
+  color: white;
+  background: #334155;
+}
+footer nav {
+  display: flex;
+  flex-wrap: wrap;
+  justify-content: center;
+  gap: 1rem;
+}
 .theme-button:hover {
   transform: translateY(-2px);
   border-color: var(--brand);
@@ -713,6 +854,12 @@ footer {
   .topbar nav {
     display: none;
   }
+  .preview-pill {
+    display: none;
+  }
+  .mobile-doc-nav {
+    display: block;
+  }
   .feature-grid,
   .package-grid {
     grid-template-columns: repeat(2, 1fr);

wrnexus.config.ts

@@ -28,6 +28,25 @@ const config: AppConfig = {
     themeColor: "#6366f1",
   },
 
+  security: {
+    headers: {
+      hsts: true,
+      noSniff: true,
+      referrerPolicy: "strict-origin-when-cross-origin",
+      permissionsPolicy: "camera=(), microphone=(), geolocation=()",
+    },
+    csp: {
+      enabled: true,
+      directives: {
+        "default-src": ["'self'"],
+        "img-src": ["'self'", "data:", "https:"],
+        "font-src": ["'self'", "https://fonts.gstatic.com"],
+        "style-src": ["'self'", "https://fonts.googleapis.com"],
+        "connect-src": ["'self'"],
+      },
+    },
+  },
+
   styles: {
     entry: "app/styles/global.css",