diff --git a/apps/tup-cms/src/taccsite_custom/tup_cms/static/tup_cms/css/for-core-cms/components/django.cms.blog.app.item.css b/apps/tup-cms/src/taccsite_custom/tup_cms/static/tup_cms/css/for-core-cms/components/django.cms.blog.app.item.css
deleted file mode 100644
index a395214e8..000000000
--- a/apps/tup-cms/src/taccsite_custom/tup_cms/static/tup_cms/css/for-core-cms/components/django.cms.blog.app.item.css
+++ /dev/null
@@ -1,6 +0,0 @@
-/* TODO: Share styles between c-news and c-feed-list (`time:not(…)`) */
-.blog-list article time:not(:is(h1, h2, h3, h4, h5, h6) *) {
-  color: var(--global-color-accent--secondary);
-  font-weight: var(--medium);
-  text-transform: uppercase;
-}
diff --git a/apps/tup-cms/src/taccsite_custom/tup_cms/static/tup_cms/css/for-core-cms/components/django.cms.blog.app.page.css b/apps/tup-cms/src/taccsite_custom/tup_cms/static/tup_cms/css/for-core-cms/components/django.cms.blog.app.page.css
index 972b7a854..50cf43e32 100644
--- a/apps/tup-cms/src/taccsite_custom/tup_cms/static/tup_cms/css/for-core-cms/components/django.cms.blog.app.page.css
+++ b/apps/tup-cms/src/taccsite_custom/tup_cms/static/tup_cms/css/for-core-cms/components/django.cms.blog.app.page.css
@@ -1,4 +1,5 @@
 /* Media & Content - Alignment */
+/* TODO: Share relevant styles with c-news and c-feed-list */
 
 
 
diff --git a/apps/tup-cms/src/taccsite_custom/tup_cms/static/tup_cms/css/for-core-cms/components/django.cms.picture.css b/apps/tup-cms/src/taccsite_custom/tup_cms/static/tup_cms/css/for-core-cms/components/django.cms.picture.css
deleted file mode 100644
index 4fb6ee0c5..000000000
--- a/apps/tup-cms/src/taccsite_custom/tup_cms/static/tup_cms/css/for-core-cms/components/django.cms.picture.css
+++ /dev/null
@@ -1,8 +0,0 @@
-/* HELP: Why/How do I need to add these styles? */
-/* NOTE: There are Core Styles and Core CMS styles for image alignment. */
-/* SEE: https://www.tacc.utexas.edu/news/latest-news/2025/11/11/basic-news-template/?edit (styles below are not needed for figures) */
-/* SEE: https://www.tacc.utexas.edu/education/k-12-students/high-school-camps/gencyber-level-up/ (styles below are needed for images) */
-/* SEE: https://matcssi.tacc.utexas.edu/ (v3.11.1) (styles below not needed for image) */
-img.align-center {
-    display: block;
-}
diff --git a/apps/tup-cms/src/taccsite_custom/tup_cms/static/tup_cms/css/for-core-styles/components/c-button.css b/apps/tup-cms/src/taccsite_custom/tup_cms/static/tup_cms/css/for-core-styles/components/c-button.css
index 5b7a119b5..916af26ce 100644
--- a/apps/tup-cms/src/taccsite_custom/tup_cms/static/tup_cms/css/for-core-styles/components/c-button.css
+++ b/apps/tup-cms/src/taccsite_custom/tup_cms/static/tup_cms/css/for-core-styles/components/c-button.css
@@ -8,12 +8,4 @@ main > .container   .c-button--is-active {
 
   /* FAQ: Design shows 10px font */
   font-size: var(--global-font-size--x-small);
-}
-
-/* TODO: Remove from c-button (once it becomes redundant there) */
-/* FAQ: This is now added in generics/attributes.css */
-/*
-[disabled] {
-  pointer-events: none;
-}
-*/
+}
\ No newline at end of file
diff --git a/apps/tup-cms/src/taccsite_custom/tup_cms/static/tup_cms/css/for-core-styles/components/c-card.css b/apps/tup-cms/src/taccsite_custom/tup_cms/static/tup_cms/css/for-core-styles/components/c-card.css
index 5c8242160..8c84ec886 100644
--- a/apps/tup-cms/src/taccsite_custom/tup_cms/static/tup_cms/css/for-core-styles/components/c-card.css
+++ b/apps/tup-cms/src/taccsite_custom/tup_cms/static/tup_cms/css/for-core-styles/components/c-card.css
@@ -1,21 +1,3 @@
-/* FIX CARD */
-
-/* !!!: When migrated:
-        1. Remove `:where(:not(…` (e.g. "not in portal").
-        2. Prevent these styles in apps/tup-ui TicketHistory CSS */
-:is(.card, .c-card, [class*="card--"]) p:last-child:where(:not(#page-portal *)) {
-    margin-bottom: 2rem; /* restore <p> `margin-bottom `*/
-}
-
-/* FAQ: Used on image cards for staff like on /education/k-12-students/ */
-:is(.card, .c-card, [class*="card--"]) h4 {
-    margin-bottom: 0.375em;
-}
-
-
-
-
-
 /* SUPPORT LIST IN CARD */
 
 /* FAQ: The Portal uses Bootstrap ".card" for ticket modal */
diff --git a/apps/tup-cms/src/taccsite_custom/tup_cms/static/tup_cms/css/for-core-styles/components/c-content-block.css b/apps/tup-cms/src/taccsite_custom/tup_cms/static/tup_cms/css/for-core-styles/components/c-content-block.css
deleted file mode 100644
index d8d720c6c..000000000
--- a/apps/tup-cms/src/taccsite_custom/tup_cms/static/tup_cms/css/for-core-styles/components/c-content-block.css
+++ /dev/null
@@ -1,12 +0,0 @@
-/* FAQ: Used on TACC as `content-block` */
-/* SEE: https://dev.tup.tacc.utexas.edu/use-tacc/stem-evaluation-services/ */
-
-:is(.c-content-block, .content-block) {
-    margin-bottom: var(--global-space--bootstrap-gap);
-    padding: var(--global-space--pattern-pad);
-}
-
-:is(.c-content-block, .content-block) :is(h1, h2, h3, h4, h5, h6) {
-    border-left: var(--global-border-width--xx-thick) solid var(--global-color-accent--tertiary);
-    padding-left: 10px;
-}
diff --git a/apps/tup-cms/src/taccsite_custom/tup_cms/static/tup_cms/css/for-core-styles/components/c-update.css b/apps/tup-cms/src/taccsite_custom/tup_cms/static/tup_cms/css/for-core-styles/components/c-update.css
deleted file mode 100644
index ed8c17e63..000000000
--- a/apps/tup-cms/src/taccsite_custom/tup_cms/static/tup_cms/css/for-core-styles/components/c-update.css
+++ /dev/null
@@ -1,10 +0,0 @@
-.c-update__header {
-  display: flex;
-  align-items: baseline;
-}
-
-.c-update__title {
-  margin-right: 0.5em;
-
-  text-transform: uppercase;
-}
diff --git a/apps/tup-cms/src/taccsite_custom/tup_cms/static/tup_cms/css/for-core-styles/generics/attributes.css b/apps/tup-cms/src/taccsite_custom/tup_cms/static/tup_cms/css/for-core-styles/generics/attributes.css
deleted file mode 100644
index 5fc9012e1..000000000
--- a/apps/tup-cms/src/taccsite_custom/tup_cms/static/tup_cms/css/for-core-styles/generics/attributes.css
+++ /dev/null
@@ -1,13 +0,0 @@
-/* To render data-prefix value as prefixed text */
-[data-prefix]::before {
-  display: inline-block;
-  content: attr(data-prefix);
-  margin-right: 0.25ch;
-
-  text-transform: none;
-}
-
-/* TODO: Remove from c-button in Core-Styles */
-[disabled] {
-  pointer-events: none;
-}
diff --git a/apps/tup-cms/src/taccsite_custom/tup_cms/static/tup_cms/css/for-core-styles/objects/o-heading-steps.css b/apps/tup-cms/src/taccsite_custom/tup_cms/static/tup_cms/css/for-core-styles/objects/o-heading-steps.css
deleted file mode 100644
index 7eaa35853..000000000
--- a/apps/tup-cms/src/taccsite_custom/tup_cms/static/tup_cms/css/for-core-styles/objects/o-heading-steps.css
+++ /dev/null
@@ -1,15 +0,0 @@
-/* To add numbers to steps */
-.heading-steps,
-[class*="heading-steps--"] {
-  counter-reset: step;
-}
-.heading-steps :is(h1, h2, h3, h4, h5, h6),
-[class*="heading-steps--"] :is(h1, h2, h3, h4, h5, h6) {
-  counter-increment: step;
-}
-.heading-steps--root :is(h1, h2, h3, h4, h5, h6)::before,
-.heading-steps__item :is(h1, h2, h3, h4, h5, h6)::before {
-  content: counter(step) '. ';
-  color: var(--global-color-accent--secondary);
-  font-weight: var(--medium);
-}
diff --git a/apps/tup-cms/src/taccsite_custom/tup_cms/static/tup_cms/css/for-core-styles/trumps/s-header.css b/apps/tup-cms/src/taccsite_custom/tup_cms/static/tup_cms/css/for-core-styles/trumps/s-header.css
deleted file mode 100644
index 821245264..000000000
--- a/apps/tup-cms/src/taccsite_custom/tup_cms/static/tup_cms/css/for-core-styles/trumps/s-header.css
+++ /dev/null
@@ -1,49 +0,0 @@
-/* NOTE: Minimal tweaks from Designer (in lieu of TACC/Core-CMS#222) */
-/* WARNING: Might conflict with TACC/Core-CMS#222 */
-.s-header {
-    font-size: var(--global-font-size--medium);
-    font-weight: var(--bold);
-    letter-spacing: 0.025px; /* 14px * 0.025em equals design-requested 0.35px */
-}
-
-/* To enlarge height for all screen widths */
-/* TODO: Change in Core-Styles */
-@media only screen and (min-width: 992px) {
-    .s-header {
-        height: 60px;
-    }
-}
-
-/* To stretch nav items to header height (while retaining vertical centering) */
-/* TODO: Change in Core-Styles */
-.s-header,
-.s-header .navbar-collapse {
-    align-items: stretch;
-}
-@media only screen and (min-width: 992px) {
-  .s-header .nav-item {
-      display: flex;
-  }
-}
-.s-header .nav-link {
-    display: flex;
-    align-items: center;
-}
-@media only screen and (min-width: 992px) {
-    .s-header[class*="navbar-expand-"] .navbar-nav .nav-link {
-        padding-block: 0; /* overwrite core-styles.header.css */
-    }
-}
-.s-header .navbar-brand {
-    display: grid;
-    align-content: center;
-}
-
-.s-header .dropdown-item:focus,
-.s-header .dropdown-item:hover {
-    background-color: rgba(var(--global-color-primary--light-rgb), 0.3);
-}
-.s-header .dropdown-item.active,
-.s-header .dropdown-item:active {
-    background-color: var(--global-color-accent--normal);
-}
diff --git a/apps/tup-cms/src/taccsite_custom/tup_cms/static/tup_cms/css/for-core-styles/trumps/u-highlight.css b/apps/tup-cms/src/taccsite_custom/tup_cms/static/tup_cms/css/for-core-styles/trumps/u-highlight.css
index b45c67bb7..ae6822c31 100644
--- a/apps/tup-cms/src/taccsite_custom/tup_cms/static/tup_cms/css/for-core-styles/trumps/u-highlight.css
+++ b/apps/tup-cms/src/taccsite_custom/tup_cms/static/tup_cms/css/for-core-styles/trumps/u-highlight.css
@@ -1,6 +1,9 @@
 /* Highlight */
 /* TODO: Create an .x-highlight used to extend a <mark> and a .u-highlight */
 
+/* TODO: Consider whether <mark> should be in Core-Styles…
+         Perhaps the client should decide what tag to use. */
+/* SEE: https://tacc-team.slack.com/archives/CQUA4D5KJ/p1696285622741979 */
 mark,
 .x-highlight,
 :is(.u-highlight, .highlight) {
diff --git a/apps/tup-cms/src/taccsite_custom/tup_cms/static/tup_cms/css/tup-cms.for-core-cms.css b/apps/tup-cms/src/taccsite_custom/tup_cms/static/tup_cms/css/tup-cms.for-core-cms.css
index abb78176a..486381b59 100644
--- a/apps/tup-cms/src/taccsite_custom/tup_cms/static/tup_cms/css/tup-cms.for-core-cms.css
+++ b/apps/tup-cms/src/taccsite_custom/tup_cms/static/tup_cms/css/tup-cms.for-core-cms.css
@@ -15,9 +15,7 @@
 
 /* COMPONENTS */
 @import url("./for-core-cms/components/c-footer.css") layer(project);
-@import url("./for-core-cms/components/django.cms.blog.app.item.css") layer(project);
 @import url("./for-core-cms/components/django.cms.blog.app.page.css") layer(project);
-@import url("./for-core-cms/components/django.cms.picture.css") layer(project);
 @import url("./for-core-cms/components/lightgallery.css") layer(project);
 
 /* TRUMPS */
diff --git a/apps/tup-cms/src/taccsite_custom/tup_cms/static/tup_cms/css/tup-cms.for-core-styles.css b/apps/tup-cms/src/taccsite_custom/tup_cms/static/tup_cms/css/tup-cms.for-core-styles.css
index c0e63518f..39375e306 100644
--- a/apps/tup-cms/src/taccsite_custom/tup_cms/static/tup_cms/css/tup-cms.for-core-styles.css
+++ b/apps/tup-cms/src/taccsite_custom/tup_cms/static/tup_cms/css/tup-cms.for-core-styles.css
@@ -5,14 +5,13 @@
 /* … */
 
 /* GENERICS */
-@import url("./for-core-styles/generics/attributes.css") layer(base);
+/* … */
 
 /* ELEMENTS */
 /* … */
 
 /* OBJECTS */
 @import url("./for-core-styles/objects/o-section.css") layer(base);
-@import url("./for-core-styles/objects/o-heading-steps.css") layer(base);
 
 /* COMPONENTS */
 @import url("./for-core-styles/components/c-button.css") layer(base);
@@ -21,8 +20,6 @@
 @import url("./for-core-styles/components/c-feed-list.css") layer(base);
 @import url("./for-core-styles/components/c-news.css") layer(base);
 @import url("./for-core-styles/components/c-pill.css") layer(base);
-@import url("./for-core-styles/components/c-update.css") layer(base);
 
 /* TRUMPS */
 @import url("./for-core-styles/trumps/u-highlight.css") layer(base);
-@import url("./for-core-styles/trumps/s-header.css") layer(base);
diff --git a/apps/tup-ui/src/main.global.for-core-styles.css b/apps/tup-ui/src/main.global.for-core-styles.css
index f54d0de31..f173dc2e2 100644
--- a/apps/tup-ui/src/main.global.for-core-styles.css
+++ b/apps/tup-ui/src/main.global.for-core-styles.css
@@ -44,16 +44,6 @@ hr {
   height: 16px;
 }
 
-/* TODO: Remove this after:
-         0. attributes.css is migrated to Core-Styles
-         1. attributes.css is loaded by Portal */
-[data-prefix]::before {
-  display: inline-block;
-  content: attr(data-prefix);
-  margin-right: 0.25ch;
-  text-transform: none;
-}
-
 /* TODO: Remove this after:
          0. CEP v2 colors are removed from Core-Styles settings/color--portal */
 #page-portal main /* i.e. global-safe :root */ {