v1.0.0: Complete layout restructure and design improvements

- Restructure layout to match copilot instructions exactly
- Add proper footer section with author and license information
- Fix header size - make it more compact and appropriate
- Move app description from header to regular paragraph text
- Optimize layout to fit within 1080p viewport without overflow
- Add Google Noto fonts for modern typography (Noto Sans + Noto Sans Mono)
- Improve responsive design and visual spacing
- Remove unnecessary gaps and improve overall UX
- Application now properly follows all architectural specifications

src/App.css

@@ -1,41 +1,29 @@
-.App {
-  text-align: center;
+/* JMESPath Testing Tool Custom Styles */
+
+/* Base font family */
+body {
+  font-family: 'Noto Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
+    'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
+    sans-serif;
+  -webkit-font-smoothing: antialiased;
+  -moz-osx-font-smoothing: grayscale;
 }
 
-.App-logo {
-  height: 40vmin;
-  pointer-events: none;
+/* Layout structure */
+.vh-100 {
+  height: 100vh;
 }
 
-@media (prefers-reduced-motion: no-preference) {
-  .App-logo {
-    animation: App-logo-spin infinite 20s linear;
-  }
-}
-
-.App-header {
-  background-color: #282c34;
-  padding: 20px;
-  color: white;
-}
-
-.App-link {
-  color: #61dafb;
-}
-
-@keyframes App-logo-spin {
-  from {
-    transform: rotate(0deg);
-  }
-  to {
-    transform: rotate(360deg);
-  }
+/* Header section styling - more compact */
+.header-section {
+  /* Removed gradient background to fix text visibility */
 }
 
 /* Custom card styling */
 .card {
   border: none;
-  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
+  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
+  border-radius: 8px;
 }
 
 .card-header {
@@ -44,7 +32,34 @@
   font-weight: 600;
 }
 
-/* Button hover effects */
+/* Input and textarea styling */
+.jmespath-input {
+  font-family: 'Noto Sans Mono', 'Consolas', 'Monaco', 'Courier New', monospace;
+  font-size: 14px;
+  padding: 10px;
+  font-weight: 400;
+}
+
+.json-input, .result-output {
+  font-family: 'Noto Sans Mono', 'Consolas', 'Monaco', 'Courier New', monospace;
+  font-size: 13px;
+  background-color: #f8f9fa;
+  border: 1px solid #dee2e6;
+  font-weight: 400;
+  line-height: 1.4;
+}
+
+.json-input.error {
+  border-color: #dc3545;
+  background-color: #fff5f5;
+}
+
+.result-output.success {
+  border-color: #28a745;
+  background-color: #f0fff4;
+}
+
+/* Button styling */
 .btn {
   transition: all 0.2s ease;
 }
@@ -53,10 +68,24 @@
   transform: translateY(-1px);
 }
 
+/* Footer styling */
+footer {
+  flex-shrink: 0;
+}
+
+footer a {
+  color: #6c757d;
+  transition: color 0.2s ease;
+}
+
+footer a:hover {
+  color: #495057;
+}
+
 /* Responsive adjustments */
 @media (max-width: 768px) {
   .header-section {
-    padding: 1rem 0;
+    padding: 1.5rem 0 !important;
   }
   
   .display-4 {
@@ -66,4 +95,13 @@
   .lead {
     font-size: 1rem;
   }
+  
+  .btn-sm {
+    font-size: 0.8rem;
+    padding: 0.25rem 0.5rem;
+  }
+  
+  .card-body textarea {
+    min-height: 300px !important;
+  }
 }