diff --git a/angular-frontend/src/app/components/application-detail/application-detail.html b/angular-frontend/src/app/components/application-detail/application-detail.html
index 8af383e..5699b36 100644
--- a/angular-frontend/src/app/components/application-detail/application-detail.html
+++ b/angular-frontend/src/app/components/application-detail/application-detail.html
@@ -5,6 +5,10 @@
  -->
 
 <div class="container-fluid p-0 page-container">
+  <!-- Header -->
+  <div class="w-100 text-white text-center py-2 page-header">
+    (HEADER)
+  </div>
   @if (loading()) {
     <div class="container py-5">
       <div class="d-flex justify-content-center align-items-center loading-container">
@@ -514,13 +518,6 @@ <h3 class="h5 mb-0">
             }
         </div>
 
-        <!-- Back Button -->
-        <div class="mt-4 ps-4">
-          <button class="btn btn-back d-flex align-items-center" (click)="goBack()">
-            <i class="fa-solid fa-arrow-left icon-md me-2"></i>
-            Back to Integration Catalog
-          </button>
-        </div>
       </div>
 
       <!-- Right Panel - Sidebar -->
@@ -596,6 +593,14 @@ <h6 class="text-muted small mb-1">Installations</h6>
         </div>
       </div>
     </div>
+
+    <!-- Back Button -->
+    <div class="mt-4 ps-4">
+      <button class="btn btn-back d-flex align-items-center" (click)="goBack()">
+        <i class="fa-solid fa-arrow-left icon-md me-2"></i>
+        Back to Integration Catalog
+      </button>
+    </div>
   </div>
 
   <!-- Fixed Position Filter Dropdowns -->
diff --git a/angular-frontend/src/app/components/application-detail/application-detail.scss b/angular-frontend/src/app/components/application-detail/application-detail.scss
index 99268de..de4452b 100644
--- a/angular-frontend/src/app/components/application-detail/application-detail.scss
+++ b/angular-frontend/src/app/components/application-detail/application-detail.scss
@@ -67,6 +67,7 @@
 .text-title {
   color: #1a202c;
   font-weight: 600;
+  font-size: 2rem;
 }
 
 .text-body {
diff --git a/angular-frontend/src/app/components/applications-list/applications-list.html b/angular-frontend/src/app/components/applications-list/applications-list.html
index f17d5d3..c10690f 100644
--- a/angular-frontend/src/app/components/applications-list/applications-list.html
+++ b/angular-frontend/src/app/components/applications-list/applications-list.html
@@ -5,6 +5,10 @@
  -->
 
 <div class="container-fluid p-0 position-relative page-bg">
+  <!-- Header -->
+  <div class="w-100 text-white text-center py-2 page-header">
+    (HEADER)
+  </div>
 <!-- Login Required Toast Notification -->
   @if (showLoginRequiredMessage()) {
     <div class="position-fixed top-0 end-0 p-3 toast-container">
@@ -27,7 +31,7 @@
 
   <div class="container-fluid p-0 page-bg">
     <!-- Hero Banner -->
-    <div class="bg-primary text-white py-5 hero-gradient">
+    <div class="bg-primary text-white py-5 hero-gradient position-relative">
       <!-- Login/Logout Button (Top Right) -->
       <div class="position-absolute top-0 end-0 p-3 z-index-10">
         @if (currentUser()) {
@@ -40,7 +44,7 @@
         }
       </div>
 
-      <div class="container">
+      <div class="mx-auto content-width position-relative">
         <!-- title -->
         <div class="row">
           <div class="col-12 text-center">
@@ -57,9 +61,9 @@ <h1 class="display-6 fw-bold mb-3 hero-title">Integration Catalog</h1>
           </div>
         </div>
 
-        <!-- Row 3: 2 columns (left numbers, right image) -->
+        <!-- Row 3: 2 columns (left numbers, right image overlapping into gray below) -->
         <div class="row mt-4">
-          <div class="col-lg-6 d-flex justify-content-center">
+          <div class="col-6 d-flex justify-content-center">
             <div class="d-flex gap-5">
               <div class="text-center">
                 <div class="display-4 fw-bold mb-2 hero-stat-value">{{ activeIntegrationsCount() }}</div>
@@ -71,30 +75,29 @@ <h1 class="display-6 fw-bold mb-3 hero-title">Integration Catalog</h1>
               </div>
             </div>
           </div>
-          <div class="col-lg-6"><!-- empty, reserved for overlay image alignment --></div>
+          <div class="col-6 position-relative">
+            <div class="overlay-image-container">
+              <img
+                src="installation-nobg.png"
+                alt="Integration illustration"
+                class="overlay-image" />
+            </div>
+          </div>
         </div>
       </div>
     </div>
 
-    <!-- Overlay image across blue + gray -->
-    <div class="d-none d-md-block overlay-image-container">
-      <img
-        src="installation-nobg.png"
-        alt="Integration illustration"
-        class="img-fluid overlay-image" />
-    </div>
-
     <!-- Description + filter section (gray background) -->
     <div class="pt-5 pb-4">
       <div class="row mb-3 mx-auto content-width">
-        <div class="col-lg-6">
+        <div class="col-6">
           <p class="mb-0 description-text">
             Explore available integrations to jump-start your workflow, build your own with AI-guided assistance,
             or upload an existing configuration to get started in just minutes. The process is fast, flexible, and
             user-friendly.
           </p>
         </div>
-        <div class="col-lg-6"></div>
+        <div class="col-6"></div>
       </div>
     </div>
 
@@ -254,7 +257,7 @@ <h1 class="display-6 fw-bold mb-3 hero-title">Integration Catalog</h1>
     }
 
     @if (!loading() && !error() && featuredApplications().length > 0) {
-      <h2 class="h3 mb-4 text-center">Featured integration apps</h2>
+      <h2 class="h3 mb-4 text-center section-title">Featured integration apps</h2>
 
       <div class="position-relative mb-5 mx-auto content-width">
         <button class="btn rounded-circle position-absolute top-50 start-0 translate-middle-y d-flex align-items-center justify-content-center scroll-btn"
@@ -364,7 +367,7 @@ <h5 class="card-title card-title-truncate">{{ app.displayName }}</h5>
         @if (!(filterState().trending || filterState().categories.length > 0 || filterState().capabilities.length > 0 || filterState().appStatus.length > 0 || filterState().midpointVersions.length > 0 || filterState().integrationMethods.length > 0 || filterState().maintainers.length > 0)) {
           <div class="position-relative mb-5">
             <div class="text-center">
-              <h2 class="h3 mb-0">More apps</h2>
+              <h2 class="h3 mb-0 section-title">More apps</h2>
             </div>
           </div>
 
@@ -388,7 +391,7 @@ <h2 class="h3 mb-0">More apps</h2>
         }
       </div>
 
-      <div class="d-flex flex-wrap gap-4 mb-4 mx-auto content-width">
+      <div class="apps-grid mb-4 mx-auto content-width">
         @for (app of moreApplications(); track app.id) {
           <div>
             <div class="card shadow-sm position-relative app-card">
diff --git a/angular-frontend/src/app/components/applications-list/applications-list.scss b/angular-frontend/src/app/components/applications-list/applications-list.scss
index 01c7031..05a41d5 100644
--- a/angular-frontend/src/app/components/applications-list/applications-list.scss
+++ b/angular-frontend/src/app/components/applications-list/applications-list.scss
@@ -9,10 +9,12 @@
    ======================================== */
 .page-bg {
   background-color: #e9ecef;
+  min-width: 1080px;
 }
 
 .content-width {
-  width: 1080px;
+  max-width: 1080px;
+  width: 100%;
 }
 
 /* ========================================
@@ -32,6 +34,7 @@
 
 .hero-stat-value {
   color: #A3CDCC;
+  font-size: 3.5rem;
 }
 
 .hero-stat-label {
@@ -67,16 +70,24 @@
    ======================================== */
 .overlay-image-container {
   position: absolute;
-  right: 28%;
-  top: 150px;
+  top: -35px;
+  left: 45%;
+  transform: translateX(-50%);
   z-index: 5;
 }
 
 .overlay-image {
-  max-width: 450px;
+  width: 450px;
   height: auto;
 }
 
+/* ========================================
+   SECTION TITLES
+   ======================================== */
+.section-title {
+  font-size: 1.75rem;
+}
+
 /* ========================================
    DESCRIPTION TEXT
    ======================================== */
@@ -235,6 +246,20 @@
   transition: opacity 0.3s ease;
 }
 
+/* ========================================
+   MORE APPS RESPONSIVE GRID
+   ======================================== */
+.apps-grid {
+  display: grid;
+  grid-template-columns: repeat(auto-fill, minmax(252px, 1fr));
+  gap: 1.5rem;
+}
+
+.apps-grid .app-card {
+  width: 100%;
+  min-width: unset;
+}
+
 /* ========================================
    STATUS BADGES
    ======================================== */
@@ -410,7 +435,8 @@
   border: 0;
   border-top: 1px solid #6c757d;
   margin: 3rem auto;
-  width: 1080px;
+  max-width: 1080px;
+  width: 100%;
 }
 
 /* ========================================
diff --git a/angular-frontend/src/app/components/applications-list/applications-list.ts b/angular-frontend/src/app/components/applications-list/applications-list.ts
index 55c7b4a..469990d 100644
--- a/angular-frontend/src/app/components/applications-list/applications-list.ts
+++ b/angular-frontend/src/app/components/applications-list/applications-list.ts
@@ -4,7 +4,7 @@
  * Licensed under the EUPL-1.2 or later.
  */
 
-import { Component, OnInit, signal, computed, ViewChild, ViewChildren, ElementRef, AfterViewInit, QueryList } from '@angular/core';
+import { Component, OnInit, OnDestroy, signal, computed, ViewChild, ViewChildren, ElementRef, AfterViewInit, QueryList } from '@angular/core';
 import { CommonModule } from '@angular/common';
 import { FormsModule } from '@angular/forms';
 import { Router } from '@angular/router';
@@ -23,7 +23,7 @@ import { AuthService } from '../../services/auth.service';
   templateUrl: './applications-list.html',
   styleUrls: ['./applications-list.scss']
 })
-export class ApplicationsList implements OnInit, AfterViewInit {
+export class ApplicationsList implements OnInit, AfterViewInit, OnDestroy {
   @ViewChild('scrollContainer') scrollContainer!: ElementRef<HTMLDivElement>;
   @ViewChild('scrollContainerMore') scrollContainerMore!: ElementRef<HTMLDivElement>;
   @ViewChildren('featuredCard') featuredCards!: QueryList<ElementRef<HTMLDivElement>>;
@@ -75,6 +75,9 @@ export class ApplicationsList implements OnInit, AfterViewInit {
   protected showLoginRequiredMessage = signal<boolean>(false);
   protected dropdownPosition = signal<{ top: number; left: number } | null>(null);
 
+  private activeChipElement: HTMLElement | null = null;
+  private scrollListener: (() => void) | null = null;
+
   protected filterState = signal<FilterState>({
     trending: false,
     categories: [],
@@ -255,17 +258,15 @@ export class ApplicationsList implements OnInit, AfterViewInit {
 
   protected toggleDropdown(filterType: string, event: MouseEvent): void {
     if (this.openDropdown() === filterType) {
-      this.openDropdown.set(null);
-      this.dropdownPosition.set(null);
+      this.closeDropdown();
     } else {
       const target = event.currentTarget as HTMLElement;
-      const rect = target.closest('.filter-chip')?.getBoundingClientRect();
+      const chip = target.closest('.filter-chip') as HTMLElement | null;
 
-      if (rect) {
-        this.dropdownPosition.set({
-          top: rect.bottom + 8,
-          left: rect.left
-        });
+      if (chip) {
+        this.activeChipElement = chip;
+        this.updateDropdownPosition();
+        this.attachScrollListener();
       }
       this.openDropdown.set(filterType);
     }
@@ -274,6 +275,34 @@ export class ApplicationsList implements OnInit, AfterViewInit {
   protected closeDropdown(): void {
     this.openDropdown.set(null);
     this.dropdownPosition.set(null);
+    this.activeChipElement = null;
+    this.detachScrollListener();
+  }
+
+  private updateDropdownPosition(): void {
+    if (!this.activeChipElement) return;
+    const rect = this.activeChipElement.getBoundingClientRect();
+    this.dropdownPosition.set({
+      top: rect.bottom + 8,
+      left: rect.left
+    });
+  }
+
+  private attachScrollListener(): void {
+    this.detachScrollListener();
+    this.scrollListener = () => this.updateDropdownPosition();
+    window.addEventListener('scroll', this.scrollListener, true);
+  }
+
+  private detachScrollListener(): void {
+    if (this.scrollListener) {
+      window.removeEventListener('scroll', this.scrollListener, true);
+      this.scrollListener = null;
+    }
+  }
+
+  ngOnDestroy(): void {
+    this.detachScrollListener();
   }
 
   protected clearTrendingFilter(): void {
diff --git a/angular-frontend/src/app/components/filter-modal/filter-modal.ts b/angular-frontend/src/app/components/filter-modal/filter-modal.ts
index 6f445b4..fa13436 100644
--- a/angular-frontend/src/app/components/filter-modal/filter-modal.ts
+++ b/angular-frontend/src/app/components/filter-modal/filter-modal.ts
@@ -123,6 +123,7 @@ export class FilterModal implements OnInit {
 
   protected toggleTrending(): void {
     this.trending.set(!this.trending());
+    this.closeModal();
   }
 
   protected toggleCategory(categoryName: string): void {
@@ -133,6 +134,7 @@ export class FilterModal implements OnInit {
       current.add(categoryName);
     }
     this.selectedCategories.set(current);
+    this.closeModal();
   }
 
   protected toggleCapability(capability: string): void {
@@ -143,6 +145,7 @@ export class FilterModal implements OnInit {
       current.add(capability);
     }
     this.selectedCapabilities.set(current);
+    this.closeModal();
   }
 
   protected toggleAppStatus(status: string): void {
@@ -153,6 +156,7 @@ export class FilterModal implements OnInit {
       current.add(status);
     }
     this.selectedAppStatus.set(current);
+    this.closeModal();
   }
 
   protected isCategorySelected(categoryName: string): boolean {
@@ -175,6 +179,7 @@ export class FilterModal implements OnInit {
       current.add(version);
     }
     this.selectedMidpointVersions.set(current);
+    this.closeModal();
   }
 
   protected isMidpointVersionSelected(version: string): boolean {
@@ -189,6 +194,7 @@ export class FilterModal implements OnInit {
       current.add(method);
     }
     this.selectedIntegrationMethods.set(current);
+    this.closeModal();
   }
 
   protected isIntegrationMethodSelected(method: string): boolean {
@@ -203,6 +209,7 @@ export class FilterModal implements OnInit {
       current.add(maintainer);
     }
     this.selectedMaintainers.set(current);
+    this.closeModal();
   }
 
   protected isMaintainerSelected(maintainer: string): boolean {
diff --git a/angular-frontend/src/app/components/upload-form-main/upload-form-main.html b/angular-frontend/src/app/components/upload-form-main/upload-form-main.html
index 1b2c805..632ecdb 100644
--- a/angular-frontend/src/app/components/upload-form-main/upload-form-main.html
+++ b/angular-frontend/src/app/components/upload-form-main/upload-form-main.html
@@ -39,6 +39,10 @@
 }
 
 <div class="publish-page">
+  <!-- Header -->
+  <div class="w-100 text-white text-center py-2 page-header">
+    (HEADER)
+  </div>
   <!-- Full-width header background, content constrained to 1080px -->
   <div class="modal-header modal-header-upload publish-header">
     <div class="publish-header-inner d-flex align-items-center position-relative">
@@ -324,7 +328,7 @@ <h6 class="mb-1 app-title">{{ selectedApplication()!.displayName }}</h6>
                     }
 
                     <!-- Search Results -->
-                    @if (!selectedApplication() && searchQuery() && filteredApplications().length > 0) {
+                    @if (searchQuery() && filteredApplications().length > 0) {
                       <div class="search-results mb-4">
                         @for (app of filteredApplications(); track app.id) {
                           <div class="card mb-3 app-card" (click)="selectApplication(app)">
diff --git a/angular-frontend/src/styles.scss b/angular-frontend/src/styles.scss
index 029579e..fbeaf57 100644
--- a/angular-frontend/src/styles.scss
+++ b/angular-frontend/src/styles.scss
@@ -6,6 +6,13 @@
 @use 'styles/variables' as *;
 @import '@fortawesome/fontawesome-free/css/all.css';
 
+/* ========================================
+   SHARED HEADER
+   ======================================== */
+.page-header {
+  background-color: #36538B;
+}
+
 /* Global radio button styling */
 input[type="radio"] {
   accent-color: $midpoint-special-color !important;