diff --git a/maps/css/map.css b/css/map.css
similarity index 100%
rename from maps/css/map.css
rename to css/map.css
diff --git a/maps/css/shared.css b/css/shared.css
similarity index 100%
rename from maps/css/shared.css
rename to css/shared.css
diff --git a/favicon/android-chrome-192x192.png b/favicon/android-chrome-192x192.png
new file mode 100644
index 0000000..dd0c5ed
Binary files /dev/null and b/favicon/android-chrome-192x192.png differ
diff --git a/favicon/android-chrome-512x512.png b/favicon/android-chrome-512x512.png
new file mode 100644
index 0000000..0215c71
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diff --git a/favicon/apple-touch-icon.png b/favicon/apple-touch-icon.png
new file mode 100644
index 0000000..3f939bc
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diff --git a/favicon/favicon-16x16.png b/favicon/favicon-16x16.png
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index 0000000..98a2188
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diff --git a/favicon/favicon-32x32.png b/favicon/favicon-32x32.png
new file mode 100644
index 0000000..40a1ce1
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diff --git a/favicon/favicon.ico b/favicon/favicon.ico
new file mode 100644
index 0000000..71319ac
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diff --git a/favicon/site.webmanifest b/favicon/site.webmanifest
new file mode 100644
index 0000000..630fcab
--- /dev/null
+++ b/favicon/site.webmanifest
@@ -0,0 +1 @@
+{"name":"","short_name":"","icons":[{"src":"android-chrome-192x192.png","sizes":"192x192","type":"image/png"},{"src":"android-chrome-512x512.png","sizes":"512x512","type":"image/png"}],"theme_color":"#ffffff","background_color":"#ffffff","display":"standalone"}
\ No newline at end of file
diff --git a/index.html b/index.html
index 0ad17a4..71cdfb5 100644
--- a/index.html
+++ b/index.html
@@ -1,2 +1,55 @@
 <!DOCTYPE html>
-<meta http-equiv="refresh" content="0;url=maps/index.html">
+<html lang="en">
+<head>
+<meta charset="utf-8">
+<meta name="viewport" content="width=device-width, initial-scale=1, viewport-fit=cover">
+<title>Municipality Email Maps</title>
+<link rel="apple-touch-icon" sizes="180x180" href="favicon/apple-touch-icon.png">
+<link rel="icon" type="image/png" sizes="32x32" href="favicon/favicon-32x32.png">
+<link rel="icon" type="image/png" sizes="16x16" href="favicon/favicon-16x16.png">
+<link rel="manifest" href="favicon/site.webmanifest">
+<link rel="stylesheet" href="css/shared.css">
+<style>
+body { background: #f0f1f5; min-height: 100vh; }
+.landing { max-width: 720px; margin: 0 auto; padding: 40px 20px; }
+.landing h2 { font-size: 22px; font-weight: 700; color: #1a1a2e; margin-bottom: 8px; }
+.landing p { font-size: 14px; color: #555; line-height: 1.6; margin-bottom: 24px; }
+.map-list { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 16px; }
+.map-card {
+  display: block; background: #fff; border-radius: 8px; padding: 24px;
+  text-decoration: none; color: #1a1a2e; border: 1px solid #d8dae0;
+  box-shadow: 0 1px 3px rgba(0,0,0,0.06); transition: box-shadow 0.15s;
+}
+.map-card:hover { box-shadow: 0 4px 12px rgba(0,0,0,0.12); }
+.map-card h3 { font-size: 17px; font-weight: 600; margin-bottom: 8px; }
+.map-card p { font-size: 13px; color: #555; line-height: 1.5; margin: 0; }
+.landing-footer { margin-top: 32px; font-size: 12px; color: #999; }
+.landing-footer a { color: #2563eb; text-decoration: none; }
+.landing-footer a:hover { text-decoration: underline; }
+</style>
+</head>
+<body>
+<header id="header">
+  <div class="header-left">
+    <h1 class="brand">Municipality Emails</h1>
+  </div>
+</header>
+<div class="landing">
+  <h2>Municipality Email Maps</h2>
+  <p>Interactive maps showing email infrastructure of ~15,300 municipalities in Germany, Austria, and Switzerland, based on public DNS records and network signals.</p>
+  <div class="map-list">
+    <a href="providers.html" class="map-card">
+      <h3>Email Providers</h3>
+      <p>Which provider handles each municipality's official email? Classified by jurisdiction: US cloud (Microsoft, Google, AWS), domestic, or foreign.</p>
+    </a>
+    <a href="security.html" class="map-card">
+      <h3>Email Security</h3>
+      <p>How well are municipality email domains protected against spoofing? Based on SPF and DMARC configuration.</p>
+    </a>
+  </div>
+  <div class="landing-footer">
+    <p>Open source &amp; open data on <a href="https://github.com/davidhuser/paper-municipality-emails" target="_blank">GitHub</a>.</p>
+  </div>
+</div>
+</body>
+</html>
diff --git a/maps/js/map-providers.js b/js/map-providers.js
similarity index 100%
rename from maps/js/map-providers.js
rename to js/map-providers.js
diff --git a/maps/js/map-security.js b/js/map-security.js
similarity index 100%
rename from maps/js/map-security.js
rename to js/map-security.js
diff --git a/maps/js/map-shared.js b/js/map-shared.js
similarity index 100%
rename from maps/js/map-shared.js
rename to js/map-shared.js
diff --git a/maps/js/nav.js b/js/nav.js
similarity index 100%
rename from maps/js/nav.js
rename to js/nav.js
diff --git a/maps/index.html b/maps/index.html
deleted file mode 100644
index 8850422..0000000
--- a/maps/index.html
+++ /dev/null
@@ -1,52 +0,0 @@
-<!DOCTYPE html>
-<html lang="en">
-<head>
-<meta charset="utf-8">
-<meta name="viewport" content="width=device-width, initial-scale=1, viewport-fit=cover">
-<title>Municipality Email Maps</title>
-<link rel="icon" type="image/svg+xml" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect x='2' y='7' width='28' height='18' rx='2' fill='%231a1a2e'/%3E%3Cpath d='M2 9l14 9 14-9' fill='none' stroke='%2316a34a' stroke-width='2'/%3E%3C/svg%3E">
-<link rel="stylesheet" href="css/shared.css">
-<style>
-body { background: #f0f1f5; min-height: 100vh; }
-.landing { max-width: 720px; margin: 0 auto; padding: 40px 20px; }
-.landing h2 { font-size: 22px; font-weight: 700; color: #1a1a2e; margin-bottom: 8px; }
-.landing p { font-size: 14px; color: #555; line-height: 1.6; margin-bottom: 24px; }
-.map-list { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 16px; }
-.map-card {
-  display: block; background: #fff; border-radius: 8px; padding: 24px;
-  text-decoration: none; color: #1a1a2e; border: 1px solid #d8dae0;
-  box-shadow: 0 1px 3px rgba(0,0,0,0.06); transition: box-shadow 0.15s;
-}
-.map-card:hover { box-shadow: 0 4px 12px rgba(0,0,0,0.12); }
-.map-card h3 { font-size: 17px; font-weight: 600; margin-bottom: 8px; }
-.map-card p { font-size: 13px; color: #555; line-height: 1.5; margin: 0; }
-.landing-footer { margin-top: 32px; font-size: 12px; color: #999; }
-.landing-footer a { color: #2563eb; text-decoration: none; }
-.landing-footer a:hover { text-decoration: underline; }
-</style>
-</head>
-<body>
-<header id="header">
-  <div class="header-left">
-    <h1 class="brand">Municipality Emails</h1>
-  </div>
-</header>
-<div class="landing">
-  <h2>Municipality Email Maps</h2>
-  <p>Interactive maps showing email infrastructure of ~15,300 municipalities in Germany, Austria, and Switzerland, based on public DNS records and network signals.</p>
-  <div class="map-list">
-    <a href="providers.html" class="map-card">
-      <h3>Email Providers</h3>
-      <p>Which provider handles each municipality's official email? Classified by jurisdiction: US cloud (Microsoft, Google, AWS), domestic, or foreign.</p>
-    </a>
-    <a href="security.html" class="map-card">
-      <h3>Email Security</h3>
-      <p>How well are municipality email domains protected against spoofing? Based on SPF and DMARC configuration.</p>
-    </a>
-  </div>
-  <div class="landing-footer">
-    <p>Open source &amp; open data on <a href="https://github.com/davidhuser/paper-municipality-emails" target="_blank">GitHub</a>.</p>
-  </div>
-</div>
-</body>
-</html>
diff --git a/maps/providers.html b/providers.html
similarity index 93%
rename from maps/providers.html
rename to providers.html
index 9dd15ca..d49913c 100644
--- a/maps/providers.html
+++ b/providers.html
@@ -16,7 +16,10 @@
 <link rel="preconnect" href="https://d.basemaps.cartocdn.com" crossorigin>
 <title>Email Providers of DACH Municipalities</title>
 <meta name="description" content="Interactive map showing the email providers of ~15,300 municipalities in Germany, Austria, and Switzerland, based on DNS analysis.">
-<link rel="icon" type="image/svg+xml" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect x='2' y='7' width='28' height='18' rx='2' fill='%231a1a2e'/%3E%3Cpath d='M2 9l14 9 14-9' fill='none' stroke='%2316a34a' stroke-width='2'/%3E%3C/svg%3E">
+<link rel="apple-touch-icon" sizes="180x180" href="favicon/apple-touch-icon.png">
+<link rel="icon" type="image/png" sizes="32x32" href="favicon/favicon-32x32.png">
+<link rel="icon" type="image/png" sizes="16x16" href="favicon/favicon-16x16.png">
+<link rel="manifest" href="favicon/site.webmanifest">
 <link rel="stylesheet" href="css/shared.css">
 <link rel="stylesheet" href="css/map.css">
 <link rel="preload" href="https://unpkg.com/leaflet@1.9.4/dist/leaflet.css" as="style" onload="this.onload=null;this.rel='stylesheet'">
@@ -71,7 +74,7 @@ <h3>Open source &amp; open data</h3>
       {
         label: 'Germany',
         topoUrl: 'topo/de-gemeinden.json',
-        dataUrl: '../output/providers/providers_de.min.json',
+        dataUrl: 'output/providers/providers_de.min.json',
         topoObject: 'VG250_GEM',
         featureCodeFn: function(f) { return String(f.id); },
         domesticCategory: 'de-based',
@@ -89,7 +92,7 @@ <h3>Open source &amp; open data</h3>
       {
         label: 'Austria',
         topoUrl: 'topo/at-gemeinden.json',
-        dataUrl: '../output/providers/providers_at.min.json',
+        dataUrl: 'output/providers/providers_at.min.json',
         topoObject: 'gemeinden',
         featureCodeFn: function(f) {
           var iso = String(f.id || (f.properties && f.properties.iso) || '');
@@ -108,7 +111,7 @@ <h3>Open source &amp; open data</h3>
       {
         label: 'Switzerland',
         topoUrl: 'https://unpkg.com/swiss-maps@4.7.0/2026/ch-combined.json',
-        dataUrl: '../output/providers/providers_ch.min.json',
+        dataUrl: 'output/providers/providers_ch.min.json',
         topoObject: 'municipalities',
         featureCodeFn: function(f) { return String(f.id); },
         domesticCategory: 'ch-based',
diff --git a/maps/security.html b/security.html
similarity index 92%
rename from maps/security.html
rename to security.html
index a97da0b..f0dcb77 100644
--- a/maps/security.html
+++ b/security.html
@@ -16,7 +16,10 @@
 <link rel="preconnect" href="https://d.basemaps.cartocdn.com" crossorigin>
 <title>Email Security of DACH Municipalities</title>
 <meta name="description" content="Interactive map showing email security (SPF, DMARC) of ~15,300 municipalities in Germany, Austria, and Switzerland.">
-<link rel="icon" type="image/svg+xml" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect x='2' y='7' width='28' height='18' rx='2' fill='%231a1a2e'/%3E%3Cpath d='M2 9l14 9 14-9' fill='none' stroke='%2316a34a' stroke-width='2'/%3E%3C/svg%3E">
+<link rel="apple-touch-icon" sizes="180x180" href="favicon/apple-touch-icon.png">
+<link rel="icon" type="image/png" sizes="32x32" href="favicon/favicon-32x32.png">
+<link rel="icon" type="image/png" sizes="16x16" href="favicon/favicon-16x16.png">
+<link rel="manifest" href="favicon/site.webmanifest">
 <link rel="stylesheet" href="css/shared.css">
 <link rel="stylesheet" href="css/map.css">
 <link rel="preload" href="https://unpkg.com/leaflet@1.9.4/dist/leaflet.css" as="style" onload="this.onload=null;this.rel='stylesheet'">
@@ -71,7 +74,7 @@ <h3>Open source &amp; open data</h3>
       {
         label: 'Germany',
         topoUrl: 'topo/de-gemeinden.json',
-        dataUrl: '../output/security/security_de.json',
+        dataUrl: 'output/security/security_de.json',
         topoObject: 'VG250_GEM',
         featureCodeFn: function(f) { return String(f.id); },
         REGION_CODES: {
@@ -86,7 +89,7 @@ <h3>Open source &amp; open data</h3>
       {
         label: 'Austria',
         topoUrl: 'topo/at-gemeinden.json',
-        dataUrl: '../output/security/security_at.json',
+        dataUrl: 'output/security/security_at.json',
         topoObject: 'gemeinden',
         featureCodeFn: function(f) {
           var iso = String(f.id || (f.properties && f.properties.iso) || '');
@@ -102,7 +105,7 @@ <h3>Open source &amp; open data</h3>
       {
         label: 'Switzerland',
         topoUrl: 'https://unpkg.com/swiss-maps@4.7.0/2026/ch-combined.json',
-        dataUrl: '../output/security/security_ch.json',
+        dataUrl: 'output/security/security_ch.json',
         topoObject: 'municipalities',
         featureCodeFn: function(f) { return String(f.id); },
         REGION_CODES: {
diff --git a/maps/topo/at-gemeinden.json b/topo/at-gemeinden.json
similarity index 100%
rename from maps/topo/at-gemeinden.json
rename to topo/at-gemeinden.json
diff --git a/maps/topo/de-gemeinden.json b/topo/de-gemeinden.json
similarity index 100%
rename from maps/topo/de-gemeinden.json
rename to topo/de-gemeinden.json