diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9b99252..e31bd4b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,14 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [0.7.3] - 2026-04-04
+
+### Accessibility
+- Increase font-size to 16px (`--text-md`) on mobile for `quick-add__input`, `quick-add__qty`, `quick-add__cat` (shopping), `notes-toolbar__search-input`, and `contacts-toolbar__search-input` - prevents iOS auto-zoom on input focus (WCAG touch-friendly inputs)
+
+### Performance
+- Lazy-load page-specific stylesheets on route change instead of loading all 10 upfront in `index.html` - reduces initial CSS payload; only tokens, reset, pwa, layout, and login styles are render-blocking
+
 ## [0.7.2] - 2026-04-04
 
 ### Accessibility
diff --git a/package.json b/package.json
index f4e323c..03c5dae 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "oikos",
-  "version": "0.7.2",
+  "version": "0.7.3",
   "description": "Self-hosted family planner - calendar, tasks, shopping, meal planning, budget and more. Private, open-source, no subscription.",
   "main": "server/index.js",
   "type": "module",
diff --git a/public/index.html b/public/index.html
index bd46b6c..b18d2ea 100644
--- a/public/index.html
+++ b/public/index.html
@@ -31,21 +31,12 @@
   <link rel="modulepreload" href="/router.js" />
   <link rel="modulepreload" href="/rrule-ui.js" />
 
-  <!-- Styles -->
+  <!-- Styles (Basis - seitenspezifische CSS wird vom Router on-demand geladen) -->
   <link rel="stylesheet" href="/styles/tokens.css" />
   <link rel="stylesheet" href="/styles/reset.css" />
   <link rel="stylesheet" href="/styles/pwa.css" />
   <link rel="stylesheet" href="/styles/layout.css" />
   <link rel="stylesheet" href="/styles/login.css" />
-  <link rel="stylesheet" href="/styles/dashboard.css" />
-  <link rel="stylesheet" href="/styles/tasks.css" />
-  <link rel="stylesheet" href="/styles/shopping.css" />
-  <link rel="stylesheet" href="/styles/meals.css" />
-  <link rel="stylesheet" href="/styles/calendar.css" />
-  <link rel="stylesheet" href="/styles/notes.css" />
-  <link rel="stylesheet" href="/styles/contacts.css" />
-  <link rel="stylesheet" href="/styles/budget.css" />
-  <link rel="stylesheet" href="/styles/settings.css" />
 
   <!-- Theme: Vor CSS-Rendering anwenden (Flash-Prevention) -->
   <script>
diff --git a/public/router.js b/public/router.js
index 862c298..7018d8e 100644
--- a/public/router.js
+++ b/public/router.js
@@ -64,6 +64,31 @@ function updateThemeColorForRoute(route) {
   }
 }
 
+// --------------------------------------------------------
+// Dynamisches Stylesheet-Loading pro Seitenmodul
+// --------------------------------------------------------
+let activePageStyle = null;
+
+function loadPageStyle(moduleName) {
+  if (!moduleName) return Promise.resolve();
+  const href = `/styles/${moduleName}.css`;
+  if (activePageStyle?.getAttribute('href') === href) return Promise.resolve();
+
+  const link = document.createElement('link');
+  link.rel = 'stylesheet';
+  link.href = href;
+
+  const loaded = new Promise((resolve) => {
+    link.onload = resolve;
+    link.onerror = resolve;
+  });
+
+  if (activePageStyle) activePageStyle.remove();
+  document.head.appendChild(link);
+  activePageStyle = link;
+  return loaded;
+}
+
 // --------------------------------------------------------
 // Modul-Cache: verhindert redundante dynamic imports bei Navigation
 // --------------------------------------------------------
@@ -170,7 +195,10 @@ async function renderPage(route, previousPath = null) {
   if (loading) loading.hidden = true;
 
   try {
-    const module = await importPage(route.page);
+    const [module] = await Promise.all([
+      importPage(route.page),
+      loadPageStyle(route.module),
+    ]);
 
     if (typeof module.render !== 'function') {
       throw new Error(`Seite ${route.page} exportiert keine render()-Funktion.`);
diff --git a/public/styles/contacts.css b/public/styles/contacts.css
index 45e34ae..c4796f2 100644
--- a/public/styles/contacts.css
+++ b/public/styles/contacts.css
@@ -61,7 +61,7 @@
   border: 1.5px solid var(--color-border);
   background-color: var(--color-surface-2);
   color: var(--color-text-primary);
-  font-size: var(--text-sm);
+  font-size: var(--text-md);
   transition: border-color var(--transition-fast);
   min-height: 36px;
 }
@@ -72,6 +72,10 @@
   background-color: var(--color-surface);
 }
 
+@media (min-width: 1024px) {
+  .contacts-toolbar__search-input { font-size: var(--text-sm); }
+}
+
 /* --------------------------------------------------------
  * Kategorie-Filter (horizontal scroll)
  * -------------------------------------------------------- */
diff --git a/public/styles/notes.css b/public/styles/notes.css
index 6f19e53..0eb393c 100644
--- a/public/styles/notes.css
+++ b/public/styles/notes.css
@@ -68,7 +68,7 @@
   border-radius: var(--radius-md);
   background: var(--color-surface);
   color: var(--color-text);
-  font-size: var(--text-sm);
+  font-size: var(--text-md);
   outline-offset: 2px;
 }
 
@@ -77,6 +77,10 @@
   border-color: transparent;
 }
 
+@media (min-width: 1024px) {
+  .notes-toolbar__search-input { font-size: var(--text-sm); }
+}
+
 /* --------------------------------------------------------
  * Masonry-Grid
  * -------------------------------------------------------- */
diff --git a/public/styles/shopping.css b/public/styles/shopping.css
index dff8eec..6d0931b 100644
--- a/public/styles/shopping.css
+++ b/public/styles/shopping.css
@@ -165,7 +165,7 @@
   border: 1.5px solid var(--color-border);
   background-color: var(--color-surface);
   color: var(--color-text-primary);
-  font-size: var(--text-base);
+  font-size: var(--text-md);
   transition: border-color var(--transition-fast);
   min-height: 44px;
 }
@@ -186,7 +186,7 @@
   border: 1px solid var(--color-border);
   background-color: var(--color-surface);
   color: var(--color-text-primary);
-  font-size: var(--text-sm);
+  font-size: var(--text-md);
   text-align: center;
   min-height: auto;
   height: auto;
@@ -206,7 +206,7 @@
   border: 1.5px solid var(--color-border);
   background-color: var(--color-surface);
   color: var(--color-text-secondary);
-  font-size: var(--text-sm);
+  font-size: var(--text-md);
   cursor: pointer;
   min-height: 44px;
 }
@@ -216,6 +216,12 @@
   border-color: var(--color-accent);
 }
 
+@media (min-width: 1024px) {
+  .quick-add__input { font-size: var(--text-base); }
+  .quick-add__qty   { font-size: var(--text-sm); }
+  .quick-add__cat   { font-size: var(--text-sm); }
+}
+
 .quick-add__btn {
   width: 44px;
   height: 44px;