Updated application styles

Author: tsv2013

src/App.css

@@ -1,43 +1,96 @@
-.sjs-client-app {
-  color: #404040;
-  font-family: "Open Sans", "Helvetica Neue", Helvetica, Arial, sans-serif;
+
+body {
+  margin: 0;
+  background: #f7f8fa;
+  font-family: 'Inter', 'Open Sans', 'Helvetica Neue', Helvetica, Arial, sans-serif;
+  color: #23282c;
 }
 
-.sjs-client-app__logo {
-  vertical-align: middle;
+.sjs-app {
+  min-height: 100vh;
+  display: flex;
+  flex-direction: column;
 }
 
-.sjs-client-app__header {
-  background-color: var(--primary, #19b394);
-  padding: 10px;
-  padding-bottom: 0;
+
+.sjs-app__header {
+  background: linear-gradient(90deg, #19b394 0%, #50b390 100%);
+  box-shadow: 0 2px 8px rgba(30,143,255,0.08);
+  padding: 0;
+  position: sticky;
+  top: 0;
+  z-index: 100;
+}
+
+.sjs-app__header-inner {
+  max-width: 1200px;
+  margin: 0 auto;
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  height: 64px;
+  padding: 0 32px;
+}
+
+.sjs-app__logo-link {
+  display: flex;
+  align-items: center;
+  text-decoration: none;
+}
+
+.sjs-app__logo {
+  height: 48px;
+  margin-right: 12px;
 }
 
 .sjs-nav-button {
   display: inline-block;
   margin-left: 24px;
-  font-weight: bold;
-  font-size: 22px;
+  font-weight: 600;
+  font-size: 18px;
   text-decoration: none;
   line-height: 40px;
-  color: white;
+  color: #fff;
+  padding: 0 8px;
+  border-radius: 4px;
+  transition: background 0.2s, color 0.2s;
 }
 
 .sjs-nav-button:hover,
 .sjs-nav-button.active {
-  text-decoration: underline;
+  background: rgba(255,255,255,0.15);
+  color: #fff;
+  text-decoration: none;
 }
 
-.sjs-client-app__content {
-  position: fixed;
-  top: 64px;
+.sjs-app__content {
+  flex: 1 1 auto;
+  max-width: 1200px;
+  margin: 32px auto 0 auto;
   width: 100%;
-  left: 0;
-  bottom: 0;
-  overflow: auto;
-  user-select: none;
+  background: #fff;
+  border-radius: 16px;
+  box-shadow: 0 2px 16px rgba(30,143,255,0.06);
+  padding: 32px 24px 40px 24px;
+  min-height: 500px;
+}
+
+.sjs-app__footer {
+  background: #23282c;
+  color: #fff;
+  padding: 0;
 }
 
+.sjs-app__footer-inner {
+  max-width: 1200px;
+  margin: 0 auto;
+  padding: 20px 32px;
+  text-align: center;
+  font-size: 15px;
+  letter-spacing: 0.2px;
+}
+
+
 h1 {
   padding-left: 24px;
 }
@@ -53,10 +106,12 @@ h1 {
   margin: 0 auto;
 }
 
-.sjs-client-app__footer {}
-
 .sjs-editor-container {
-  height: calc(100% - 2px);
+  position: fixed;
+  left: 0;
+  width: 100%;
+  top: 70px;
+  height: calc(100% - 130px);
 }
 
 .sjs-results-container {

src/App.tsx

@@ -11,19 +11,26 @@ import logo from './logo.svg';
 function App() {
   return (
     <Provider store={store}>
-        <Router>
-          <div className="sjs-client-app">
-            <header className="sjs-client-app__header">
-              <img src={logo} className="sjs-client-app__logo" alt="logo" height={'50px'} />
+      <Router>
+        <div className="sjs-app">
+          <header className="sjs-app__header">
+            <div className="sjs-app__header-inner">
+              <a href="https://surveyjs.io/" className="sjs-app__logo-link" target="_blank" rel="noopener noreferrer">
+                <img src={logo} className="sjs-app__logo" alt="SurveyJS Logo" height="48" />
+              </a>
               <NavBar/>
-            </header>
-            <main className="sjs-client-app__content">
-              <Content/>
-            </main>
-            <footer className="sjs-client-app__footer">
-            </footer>
-          </div>
-        </Router>
+            </div>
+          </header>
+          <main className="sjs-app__content">
+            <Content/>
+          </main>
+          <footer className="sjs-app__footer">
+            <div className="sjs-app__footer-inner">
+              <span>Copyright © {new Date().getFullYear()} Devsoft Baltic OÜ. All rights reserved.</span>
+            </div>
+          </footer>
+        </div>
+      </Router>
     </Provider>
   );
 }