diff --git a/wasm/repl/repl.css b/wasm/repl/repl.css
index 1b49179..86253d4 100644
--- a/wasm/repl/repl.css
+++ b/wasm/repl/repl.css
@@ -123,8 +123,8 @@ body.repl {
   grid-template-columns: auto auto 1fr auto auto auto auto;
   gap: 0.3rem;
   align-items: center;
-  padding: 0.4rem 1rem;
-  margin: 0 -1rem 0.4rem;          /* bleed to viewport edges */
+  padding: 0.4rem 0.4rem;
+  margin: 0 0 0.4rem;
   background: var(--code-bg);
   border-bottom: 1px solid var(--rule);
 }
@@ -181,13 +181,15 @@ body.repl {
  * fresh sessions show the prompt up near the top and it drifts down
  * with each new entry. */
 .repl-stream {
-  padding: 0.5rem 1rem 0;
   background: var(--code-bg);
   display: grid;
   grid-template-rows: auto auto auto;
   align-content: start;
 }
 .transcript {
+  /* Same horizontal inset as the active prompt-bar so prior λ> sigils
+   * line up with the live one. */
+  padding: 0.4rem 0.4rem 0;
   font-family: var(--mono);
   font-size: 0.92em;
   line-height: 1.45;
@@ -245,7 +247,7 @@ body.repl {
   grid-template-columns: auto 1fr auto auto;
   gap: 0.4rem;
   align-items: center;
-  padding: 0.3rem 0 0.5rem;
+  padding: 0.3rem 0.4rem 0.5rem;
   background: var(--code-bg);
 }
 .prompt-bar .prompt-sigil {
diff --git a/www/repl/repl.css b/www/repl/repl.css
index 1b49179..86253d4 100644
--- a/www/repl/repl.css
+++ b/www/repl/repl.css
@@ -123,8 +123,8 @@ body.repl {
   grid-template-columns: auto auto 1fr auto auto auto auto;
   gap: 0.3rem;
   align-items: center;
-  padding: 0.4rem 1rem;
-  margin: 0 -1rem 0.4rem;          /* bleed to viewport edges */
+  padding: 0.4rem 0.4rem;
+  margin: 0 0 0.4rem;
   background: var(--code-bg);
   border-bottom: 1px solid var(--rule);
 }
@@ -181,13 +181,15 @@ body.repl {
  * fresh sessions show the prompt up near the top and it drifts down
  * with each new entry. */
 .repl-stream {
-  padding: 0.5rem 1rem 0;
   background: var(--code-bg);
   display: grid;
   grid-template-rows: auto auto auto;
   align-content: start;
 }
 .transcript {
+  /* Same horizontal inset as the active prompt-bar so prior λ> sigils
+   * line up with the live one. */
+  padding: 0.4rem 0.4rem 0;
   font-family: var(--mono);
   font-size: 0.92em;
   line-height: 1.45;
@@ -245,7 +247,7 @@ body.repl {
   grid-template-columns: auto 1fr auto auto;
   gap: 0.4rem;
   align-items: center;
-  padding: 0.3rem 0 0.5rem;
+  padding: 0.3rem 0.4rem 0.5rem;
   background: var(--code-bg);
 }
 .prompt-bar .prompt-sigil {