Refactor UI styles for footer and main content

Adjust the styles of the footer and main content to improve the layout and responsiveness. Specifically, the padding and margin of the footer and main sections have been modified to achieve a better visual appearance and spacing. Additionally, the padding-bottom property has been removed from the body element to eliminate unnecessary space at the bottom of the page. These changes ensure a more consistent and visually appealing user experience across different screen sizes.

css/styles.css

@@ -39,6 +39,7 @@ body {
     min-height: 100vh;
     display: flex;
     flex-direction: column;
+    padding-bottom: 0;
 }
 
 /* Header */
@@ -337,7 +338,7 @@ h2 {
     padding: 2.5rem;
     border-radius: 1.25rem;
     box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
-    margin-top: 2rem;
+    margin-bottom: 4rem;
 }
 
 .dark-mode .improvements-section {
@@ -994,8 +995,6 @@ h2 {
     border-top: 1px solid var(--border-color);
     background: white;
     width: 100%;
-    position: relative;
-    bottom: 0;
 }
 
 .dark-mode .site-footer {
@@ -1095,10 +1094,12 @@ h2 {
     min-height: 100vh;
     display: flex;
     flex-direction: column;
+    padding-bottom: 0;
 }
 
 main {
     flex: 1 0 auto;
+    margin-bottom: 2rem;
 }
 
 @keyframes heartbeat {
@@ -1126,4 +1127,15 @@ main {
     clip: rect(0, 0, 0, 0);
     white-space: nowrap;
     border: 0;
+}
+
+/* Responsive adjustments */
+@media (max-width: 768px) {
+    .improvements-section {
+        margin-bottom: 3rem;
+    }
+
+    main {
+        margin-bottom: 1.5rem;
+    }
 }