diff --git a/dist/css/index.css b/dist/css/index.css
index 6009ab1..b9fd109 100644
--- a/dist/css/index.css
+++ b/dist/css/index.css
@@ -79,6 +79,46 @@ ul, ol {
   margin-bottom: 1rem;
 }
 
+small {
+  font-size: 0.875em;
+}
+
+hr {
+  margin: 1rem 0;
+  color: var(--text-secondary);
+  border: 0;
+  border-top: 1px solid;
+  opacity: 0.7;
+}
+
+blockquote {
+  border-left: 4px solid var(--border-color);
+  margin: 1.5em 0;
+  padding: 0.5em 1em;
+  background-color: var(--background-secondary);
+}
+
+blockquote p {
+  margin: 0;
+}
+
+/* ===== TYPOGRAPHY (Element Styles) ===== */
+h3 {
+  font-size: 1.75rem;
+  font-weight: 500;
+  line-height: 1.2;
+  margin-top: 0;
+  margin-bottom: 0.5rem;
+}
+
+h5 {
+  font-size: 1.25rem;
+  font-weight: 500;
+  line-height: 1.2;
+  margin-top: 0;
+  margin-bottom: 0.5rem;
+}
+
 /* ===== GRID SYSTEM ===== */
 .container {
   --bs-gutter-x: 1.5rem;
@@ -177,177 +217,6 @@ ul, ol {
   }
 }
 
-/* ===== SPACING UTILITIES ===== */
-.m-0 { margin: 0 !important; }
-.mt-1 { margin-top: 0.25rem !important; }
-.mt-3 { margin-top: 1rem !important; }
-.mt-4 { margin-top: 1.5rem !important; }
-.mb-0 { margin-bottom: 0 !important; }
-.mb-1 { margin-bottom: 0.25rem !important; }
-.mb-3 { margin-bottom: 1rem !important; }
-.mb-auto { margin-bottom: auto !important; }
-.my-2 { margin-top: 0.5rem !important; margin-bottom: 0.5rem !important; }
-.my-4 { margin-top: 1.5rem !important; margin-bottom: 1.5rem !important; }
-.mx-2 { margin-left: 0.5rem !important; margin-right: 0.5rem !important; }
-.mx-3 { margin-left: 1rem !important; margin-right: 1rem !important; }
-.mx-auto { margin-left: auto !important; margin-right: auto !important; }
-
-.p-4 { padding: 1.5rem !important; }
-.px-0 { padding-left: 0 !important; padding-right: 0 !important; }
-.py-0 { padding-top: 0 !important; padding-bottom: 0 !important; }
-.py-3 { padding-top: 1rem !important; padding-bottom: 1rem !important; }
-.pt-3 { padding-top: 1rem !important; }
-.pb-0 { padding-bottom: 0 !important; }
-.ps-3 { padding-left: 1rem !important; }
-
-/* ===== DISPLAY UTILITIES ===== */
-.d-none { display: none !important; }
-.d-inline { display: inline !important; }
-.d-inline-block { display: inline-block !important; }
-.d-block { display: block !important; }
-.d-flex { display: flex !important; }
-
-@media (min-width: 768px) {
-  .d-md-none { display: none !important; }
-  .d-md-inline { display: inline !important; }
-  .d-md-block { display: block !important; }
-}
-
-@media (min-width: 992px) {
-  .d-lg-none { display: none !important; }
-  .d-lg-inline { display: inline !important; }
-  .d-lg-inline-block { display: inline-block !important; }
-  .d-lg-block { display: block !important; }
-  .d-lg-flex { display: flex !important; }
-}
-
-/* ===== FLEXBOX UTILITIES ===== */
-.flex-column { flex-direction: column !important; }
-.flex-nowrap { flex-wrap: nowrap !important; }
-.flex-grow-1 { flex-grow: 1 !important; }
-.justify-content-between { justify-content: space-between !important; }
-.justify-content-end { justify-content: flex-end !important; }
-.justify-content-evenly { justify-content: space-evenly !important; }
-.align-items-center { align-items: center !important; }
-
-@media (min-width: 768px) {
-  .flex-md-row { flex-direction: row !important; }
-}
-
-/* ===== GAP UTILITIES ===== */
-.gap-2 { gap: 0.5rem !important; }
-.gap-3 { gap: 1rem !important; }
-
-@media (min-width: 576px) {
-  .gap-sm-5 { gap: 3rem !important; }
-}
-
-/* ===== TYPOGRAPHY ===== */
-h3 {
-  font-size: 1.75rem;
-  font-weight: 500;
-  line-height: 1.2;
-  margin-top: 0;
-  margin-bottom: 0.5rem;
-}
-
-.h2 {
-  font-size: 2rem;
-  font-weight: 500;
-  line-height: 1.2;
-  margin: 0;
-}
-
-.h4 {
-  font-size: 1.5rem;
-  font-weight: 500;
-  line-height: 1.2;
-  margin: 0;
-}
-
-.h5 {
-  font-size: 1.25rem;
-  font-weight: 500;
-  line-height: 1.2;
-  margin: 0;
-}
-
-h5 {
-  font-size: 1.25rem;
-  font-weight: 500;
-  line-height: 1.2;
-  margin-top: 0;
-  margin-bottom: 0.5rem;
-}
-
-.text-center { text-align: center !important; }
-.text-start { text-align: left !important; }
-.fst-italic { font-style: italic !important; }
-.lh-1 { line-height: 1 !important; }
-
-small {
-  font-size: 0.875em;
-}
-
-/* ===== COLOR UTILITIES ===== */
-.text-secondary {
-  color: var(--text-secondary) !important;
-}
-
-.text-muted {
-  color: var(--text-secondary) !important;
-}
-
-.text-body-emphasis {
-  color: var(--text-color) !important;
-}
-
-.bg-body-secondary {
-  background-color: var(--background-secondary) !important;
-}
-
-.link-secondary {
-  color: var(--text-secondary) !important;
-  text-decoration: none;
-}
-
-.link-secondary:hover {
-  color: var(--link-hover-color) !important;
-}
-
-.border-secondary {
-  border-color: var(--border-color) !important;
-}
-
-/* ===== BORDERS ===== */
-.border {
-  border: 1px solid var(--border-color) !important;
-}
-
-.border-bottom {
-  border-bottom: 1px solid var(--border-color) !important;
-}
-
-.rounded {
-  border-radius: 0.375rem !important;
-}
-
-/* ===== SHADOWS ===== */
-.shadow-sm {
-  box-shadow: 0 0.125rem 0.25rem var(--shadow-color) !important;
-}
-
-.shadow {
-  box-shadow: 0 0.5rem 1rem var(--shadow-color) !important;
-}
-
-/* ===== POSITIONING ===== */
-.position-relative { position: relative !important; }
-.position-static { position: static !important; }
-
-/* ===== SIZING ===== */
-.w-100 { width: 100% !important; }
-
 /* ===== NAVIGATION ===== */
 .navbar {
   position: relative;
@@ -415,19 +284,9 @@ small {
   border: 1px solid var(--border-color);
 }
 
-/* ===== HR ===== */
-hr {
-  margin: 1rem 0;
-  color: var(--border-color);
-  border: 0;
-  border-top: 1px solid;
-  opacity: 0.25;
-}
-
 /* ===== LINKS ===== */
 .link {
   font-family: var(--link-font-family);
-  color: var(--link-color);
   text-decoration: none;
 }
 
@@ -498,17 +357,6 @@ hr {
   color: var(--secondary-text);
 }
 
-blockquote {
-  border-left: 4px solid var(--border-color);
-  margin: 1.5em 0;
-  padding: 0.5em 1em;
-  background-color: var(--background-secondary);
-}
-
-blockquote p {
-  margin: 0;
-}
-
 footer {
   margin-top: 0rem;
   padding: 1rem 0;
@@ -539,7 +387,163 @@ footer {
   }
 }
 
-/* ===== TRANSITIONS ===== */
 .transition-shadow {
   transition: box-shadow 0.2s ease-in-out;
 }
+
+/* ===== UTILITIES (must be last to override component styles) ===== */
+
+/* Typography utilities */
+.h2 {
+  font-size: 2rem;
+  font-weight: 500;
+  line-height: 1.2;
+  margin: 0;
+}
+
+.h4 {
+  font-size: 1.5rem;
+  font-weight: 500;
+  line-height: 1.2;
+  margin: 0;
+}
+
+.h5 {
+  font-size: 1.25rem;
+  font-weight: 500;
+  line-height: 1.2;
+  margin: 0;
+}
+
+.text-center { text-align: center; }
+.text-start { text-align: left; }
+.fst-italic { font-style: italic; }
+.lh-1 { line-height: 1; }
+
+/* Color utilities */
+.text-secondary {
+  color: var(--text-secondary);
+}
+
+.text-muted {
+  color: var(--text-secondary);
+}
+
+.text-body-emphasis {
+  color: var(--text-color);
+}
+
+.bg-body-secondary {
+  background-color: var(--background-secondary);
+}
+
+.link-secondary {
+  color: var(--text-secondary);
+  text-decoration: none;
+}
+
+.link-secondary:hover {
+  color: var(--link-hover-color);
+}
+
+.border-secondary {
+  border-color: var(--border-color);
+}
+
+/* Border utilities */
+.border {
+  border: 1px solid var(--border-color);
+}
+
+.border-bottom {
+  border-bottom: 1px solid var(--border-color);
+}
+
+header.border-bottom {
+  border-bottom: 4px double var(--text-secondary);
+}
+
+.rounded {
+  border-radius: 0.375rem;
+}
+
+/* Shadow utilities */
+.shadow-sm {
+  box-shadow: 0 0.125rem 0.25rem var(--shadow-color);
+}
+
+.shadow {
+  box-shadow: 0 0.5rem 1rem var(--shadow-color);
+}
+
+/* Positioning utilities */
+.position-relative { position: relative; }
+.position-static { position: static; }
+
+/* Sizing utilities */
+.w-100 { width: 100%; }
+
+/* Display utilities */
+.d-none { display: none; }
+.d-inline { display: inline; }
+.d-inline-block { display: inline-block; }
+.d-block { display: block; }
+.d-flex { display: flex; }
+
+@media (min-width: 768px) {
+  .d-md-none { display: none; }
+  .d-md-inline { display: inline; }
+  .d-md-block { display: block; }
+}
+
+@media (min-width: 992px) {
+  .d-lg-none { display: none; }
+  .d-lg-inline { display: inline; }
+  .d-lg-inline-block { display: inline-block; }
+  .d-lg-block { display: block; }
+  .d-lg-flex { display: flex; }
+}
+
+/* Flexbox utilities */
+.flex-column { flex-direction: column; }
+.flex-nowrap { flex-wrap: nowrap; }
+.flex-grow-1 { flex-grow: 1; }
+.justify-content-between { justify-content: space-between; }
+.justify-content-end { justify-content: flex-end; }
+.justify-content-evenly { justify-content: space-evenly; }
+.align-items-center { align-items: center; }
+
+@media (min-width: 768px) {
+  .flex-md-row { flex-direction: row; }
+}
+
+/* Gap utilities */
+.gap-2 { gap: 0.5rem; }
+.gap-3 { gap: 1rem; }
+
+@media (min-width: 576px) {
+  .gap-sm-5 { gap: 3rem; }
+}
+
+/* Spacing utilities */
+.m-0 { margin: 0; }
+.mt-1 { margin-top: 0.25rem; }
+.mt-3 { margin-top: 1rem; }
+.mt-4 { margin-top: 1.5rem; }
+.mb-0 { margin-bottom: 0; }
+.mb-1 { margin-bottom: 0.25rem; }
+.mb-3 { margin-bottom: 1rem; }
+.mb-auto { margin-bottom: auto; }
+.my-2 { margin-top: 0.5rem; margin-bottom: 0.5rem; }
+.my-4 { margin-top: 1.5rem; margin-bottom: 1.5rem; }
+.mx-2 { margin-left: 0.5rem; margin-right: 0.5rem; }
+.mx-3 { margin-left: 1rem; margin-right: 1rem; }
+.mx-auto { margin-left: auto; margin-right: auto; }
+
+.p-4 { padding: 1.5rem; }
+.px-0 { padding-left: 0; padding-right: 0; }
+.py-0 { padding-top: 0; padding-bottom: 0; }
+.py-3 { padding-top: 1rem; padding-bottom: 1rem; }
+.pt-3 { padding-top: 1rem; }
+.pb-0 { padding-bottom: 0; }
+.ps-3 { padding-left: 1rem; }
diff --git a/dist/index.html b/dist/index.html
index 14b6c4a..5e8c65c 100644
--- a/dist/index.html
+++ b/dist/index.html
@@ -102,12 +102,7 @@
     </header>
 
     
-<div
-    class="row g-0 border rounded text-body-emphasis bg-body-secondary flex-md-row my-4 position-relative shadow-sm transition-shadow"
-    style="transition: box-shadow 0.2s ease-in-out"
-    onmouseover="this.classList.remove('shadow-sm'); this.classList.add('shadow')"
-    onmouseout="this.classList.remove('shadow'); this.classList.add('shadow-sm')"
->
+<div class="row g-0 border rounded text-body-emphasis bg-body-secondary flex-md-row my-4 position-relative">
     <div class="col p-4 d-flex flex-column position-static">
         <h3 class="fst-italic mb-3">Biography - Yan Lin</h3>
         <p class="card-text mb-auto" style="font-size: calc(1.0rem + 0.1vw)">
diff --git a/templates/index.html b/templates/index.html
index 50dbd07..a433518 100644
--- a/templates/index.html
+++ b/templates/index.html
@@ -1,12 +1,7 @@
 {% extends 'base.html' %} {% block title %}Yan Lin's Homepage{% endblock %} {%
 block navigation %} {% include 'partials/navigation.html' %} {% endblock %} {%
 block content %}
-<div
-    class="row g-0 border rounded text-body-emphasis bg-body-secondary flex-md-row my-4 position-relative shadow-sm transition-shadow"
-    style="transition: box-shadow 0.2s ease-in-out"
-    onmouseover="this.classList.remove('shadow-sm'); this.classList.add('shadow')"
-    onmouseout="this.classList.remove('shadow'); this.classList.add('shadow-sm')"
->
+<div class="row g-0 border rounded text-body-emphasis bg-body-secondary flex-md-row my-4 position-relative">
     <div class="col p-4 d-flex flex-column position-static">
         <h3 class="fst-italic mb-3">Biography - Yan Lin</h3>
         <p class="card-text mb-auto" style="font-size: calc(1.0rem + 0.1vw)">