diff --git a/scripts/package-boundaries.json b/scripts/package-boundaries.json
index 6c312deef..c8783bde9 100644
--- a/scripts/package-boundaries.json
+++ b/scripts/package-boundaries.json
@@ -60,6 +60,7 @@
       "src/ui/scenePresentation.js",
       "src/i18n/index.js",
       "src/i18n/locale.js",
+      "src/i18n/locales/ar.json",
       "src/i18n/locales/de.json",
       "src/i18n/locales/es.json",
       "src/i18n/locales/fr.json",
diff --git a/src/annotations/drawTool.test.mjs b/src/annotations/drawTool.test.mjs
index d955d2d6f..b4e25abf8 100644
--- a/src/annotations/drawTool.test.mjs
+++ b/src/annotations/drawTool.test.mjs
@@ -112,10 +112,11 @@ test('the DISPLAY rail styles live in their current owner, not the shim', () =>
   // these rules lived in the root style.css. That file is an import shim now,
   // and putting rules back into it would silently undo the split.
   const shim = read('style.css');
-  assert.ok(
-    shim.split('\n').length < 40,
-    'style.css is an import shim, not a stylesheet',
-  );
+  const rules = shim
+    .replace(/\/\*[\s\S]*?\*\//g, '')
+    .split('\n')
+    .filter((line) => line.trim() && !/^@import '[^']+';$/.test(line.trim()));
+  assert.deepEqual(rules, [], 'style.css is an import shim, not a stylesheet');
   assert.doesNotMatch(
     shim,
     /draw-hint|pp-text-input/,
diff --git a/src/ui/rtlLayout.test.mjs b/src/ui/rtlLayout.test.mjs
index ea9056a6f..a28ddcaa5 100644
--- a/src/ui/rtlLayout.test.mjs
+++ b/src/ui/rtlLayout.test.mjs
@@ -111,3 +111,38 @@ test('the Space Missions counter reads as a number pair in right-to-left', () =>
   assert.match(counters[1], /\[data-mission-index\]/);
   assert.match(counters[2], /direction: ltr;/);
 });
+
+test('select chevrons and legend ranges follow the field and the ramp in right-to-left', () => {
+  const field = sheet('form-field.css');
+  assert.match(
+    ruleBody(field, 'select.gev-field'),
+    /padding-inline-end: 22px;/,
+  );
+  assert.match(
+    ruleBody(field, 'select.gev-field--compact'),
+    /padding-inline-end: 18px;/,
+  );
+  // Selects that set their own padding keep the chevron's room at the end.
+  for (const [name, selector, inline] of [
+    ['radio.css', '#radio-filter', '8px 24px'],
+    ['radio.css', '.sdr-gain-row select', '7px 22px'],
+    ['voice-card.css', '#gev-voice-timeout-select', '0.45rem 22px'],
+  ]) {
+    const body = ruleBody(sheet(name), selector);
+    assert.match(body, new RegExp(`padding-inline: ${inline};`));
+    assert.doesNotMatch(body, /(?:^|\s)padding(?:-right)?:/);
+  }
+  const rtl = sheet('rtl.css');
+  assert.match(
+    ruleBody(rtl, "html[dir='rtl'] select.gev-field"),
+    /background-position: left 8px center;/,
+  );
+  assert.match(
+    ruleBody(rtl, "html[dir='rtl'] select.gev-field--compact"),
+    /background-position: left 6px center;/,
+  );
+  assert.match(
+    ruleBody(rtl, "html[dir='rtl'] .rail-card-scale"),
+    /direction: ltr;/,
+  );
+});
diff --git a/src/ui/styles/form-field.css b/src/ui/styles/form-field.css
index 81462ba21..11e7d5a2d 100644
--- a/src/ui/styles/form-field.css
+++ b/src/ui/styles/form-field.css
@@ -19,7 +19,7 @@
 select.gev-field {
   -webkit-appearance: none;
   appearance: none;
-  padding-right: 22px;
+  padding-inline-end: 22px;
   background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath d='M1 1l4 4 4-4' fill='none' stroke='rgba(255,255,255,0.62)' stroke-width='1.4' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
   background-repeat: no-repeat;
   background-position: right 8px center;
@@ -45,7 +45,7 @@ select.gev-field {
 }
 
 select.gev-field--compact {
-  padding-right: 18px;
+  padding-inline-end: 18px;
   background-position: right 6px center;
 }
 
diff --git a/src/ui/styles/radio.css b/src/ui/styles/radio.css
index 4d6df2230..e491c7409 100644
--- a/src/ui/styles/radio.css
+++ b/src/ui/styles/radio.css
@@ -49,7 +49,8 @@
 #radio-filter {
   /* Radio owns its compact density and arrow space; shared fields paint the
      palette and disabled state, including this intentional theme exception. */
-  padding: 7px 24px 7px 8px;
+  padding-block: 7px;
+  padding-inline: 8px 24px;
   border-radius: 5px;
   font: 9px/1.2 var(--font-mono);
   --gev-field-border-color: rgba(65, 220, 231, 0.28);
@@ -1128,7 +1129,8 @@ html:not([lang='en']) .data-row-list-text {
 .sdr-gain-row select {
   flex: 1;
   min-width: 0;
-  padding: 5px 22px 5px 7px;
+  padding-block: 5px;
+  padding-inline: 7px 22px;
 }
 .sdr-adsb-stats {
   display: grid;
diff --git a/src/ui/styles/rtl.css b/src/ui/styles/rtl.css
index e5e3c629d..10b5c13bd 100644
--- a/src/ui/styles/rtl.css
+++ b/src/ui/styles/rtl.css
@@ -205,3 +205,18 @@ html[dir='rtl']
 html[dir='rtl'] #radio-tuner-value {
   unicode-bidi: plaintext;
 }
+
+/* The select chevron sits at the end of the field, where the text stops
+   (form-field.css pads that side through padding-inline-end). */
+html[dir='rtl'] select.gev-field {
+  background-position: left 8px center;
+}
+html[dir='rtl'] select.gev-field--compact {
+  background-position: left 6px center;
+}
+
+/* A legend's range is printed under its colour ramp, which always runs low
+   to high from left to right; the numbers keep that order. */
+html[dir='rtl'] .rail-card-scale {
+  direction: ltr;
+}
diff --git a/src/ui/styles/voice-card.css b/src/ui/styles/voice-card.css
index dfda6d9c7..637a4e88a 100644
--- a/src/ui/styles/voice-card.css
+++ b/src/ui/styles/voice-card.css
@@ -553,7 +553,8 @@ body.recording-mode .gev-pointer-reticle {
 #gev-voice-timeout-select {
   flex: 1 1 auto;
   min-width: 0;
-  padding: 0 22px 0 0.45rem;
+  padding-block: 0;
+  padding-inline: 0.45rem 22px;
 }
 #gev-voice-timeout-input {
   flex: 0 0 4.5rem;