fix: minor style issues

Author: julhoang

static/css/v3/buttons.css

@@ -242,13 +242,13 @@ html.dark .btn-icon-library:hover {
 
 /* ── Dark Mode ──────────────────────────────────── */
 html.dark {
-  .btn-primary:hover, .btn-primary[data-hover], .btn-green:hover, .btn-green[data-hover], .btn-yellow:hover, .btn-yellow[data-hover], .btn-teal:hover, .btn-teal[data-hover] {
+  :is(.btn-primary, .btn-green, .btn-yellow, .btn-teal):is(:hover, [data-hover]) {
     background-color: var(--color-secondary-dark-blue);
     border-color: var(--color-stroke-weak);
     color: var(--color-text-primary);
   }
 
-  .btn.btn-hero.btn-primary:hover,.btn.btn-hero.btn-primary[data-hover] {
+  .btn.btn-hero.btn-primary:is(:hover, [data-hover]) {
     color: var(--color-text-on-accent);
   }
 }

static/css/v3/card.css

@@ -65,6 +65,7 @@
   font-weight: var(--font-weight-medium);
   line-height: var(--line-height-tight);
   letter-spacing: var(--letter-spacing-display-regular);
+  margin: 0;
 }
 
 .card__hr {

static/css/v3/cards-carousel.css

@@ -87,9 +87,14 @@
   overflow-x: auto;
   overflow-y: hidden;
   -webkit-overflow-scrolling: touch;
+  scrollbar-width: none;
   min-width: 0;
 }
 
+.cards-carousel__list::-webkit-scrollbar {
+  display: none;
+}
+
 .cards-carousel__item {
   list-style: none;
   flex: 0 0 300px;