diff --git a/frontend/index.html b/frontend/index.html
index 09835b3..dc6ea9e 100644
--- a/frontend/index.html
+++ b/frontend/index.html
@@ -1713,7 +1713,7 @@
 // ===== Version =====
 // Single source of truth for the PWA version: shown in the header and used
 // by the server version check in pysimConnect().
-const SIMPLE_VERSION = '3.6.29';
+const SIMPLE_VERSION = '3.6.30';
 document.getElementById('app-version').textContent = 'v' + SIMPLE_VERSION;
 
 // ===== Tab switching =====
@@ -8840,7 +8840,7 @@ function ramRenderExploreHtml(mem, isd, apps, elfs, fmt) {
 		html += '<div class="mb-4">';
 		html += '<div class="font-semibold text-sm mb-1">' + esc(t('ISD (Issuer Security Domain)')) + '</div>';
 		isd.forEach(o => {
-			html += '<div class="mb-1 pl-2 border-l-2 border-blue-400">';
+			html += '<div class="mb-1 pl-2 pr-2 py-1 rounded bg-gray-50 dark:bg-slate-800/60 hover:bg-gray-100 dark:hover:bg-slate-700/50 border-l-2 border-blue-400">';
 			html += '<div>' + esc(t('AID:')) + ' ' + (o.aid ? jcAidHtml(o.aid) : '?') + '</div>';
 			html += '<div>' + esc(t('Lifecycle:')) + ' ' + ramFmtLifecycle(o.lifecycle || '') + '</div>';
 			if (o.privileges) html += '<div>' + esc(t('Privileges:')) + ' ' + ramFmtPrivileges(o.privileges) + ' (' + o.privileges + ')</div>';
@@ -8853,7 +8853,7 @@ function ramRenderExploreHtml(mem, isd, apps, elfs, fmt) {
 		html += '<div class="mb-4">';
 		html += '<div class="font-semibold text-sm mb-1">' + esc(t('Applications / Applet Instances')) + '</div>';
 		apps.forEach(o => {
-			html += '<div class="mb-1 pl-2 border-l-2 border-green-400 flex items-start gap-3">';
+			html += '<div class="mb-1 pl-2 pr-2 py-1 rounded bg-gray-50 dark:bg-slate-800/60 hover:bg-gray-100 dark:hover:bg-slate-700/50 border-l-2 border-green-400 flex items-start gap-3">';
 			html += '<div class="flex-1 min-w-0">';
 			html += '<div>' + esc(t('Application / Instance AID:')) + ' ' + (o.aid ? jcAidHtml(o.aid) : '?') + '</div>';
 			html += '<div>' + esc(t('Lifecycle:')) + ' ' + ramFmtLifecycle(o.lifecycle || '') + '</div>';
@@ -8877,7 +8877,7 @@ function ramRenderExploreHtml(mem, isd, apps, elfs, fmt) {
 		html += '<div class="mb-4">';
 		html += '<div class="font-semibold text-sm mb-1">' + esc(t('Executable Load Files (ELFs) / Packages')) + '</div>';
 		elfs.forEach(o => {
-			html += '<div class="mb-1 pl-2 border-l-2 border-purple-400 flex items-start gap-3">';
+			html += '<div class="mb-1 pl-2 pr-2 py-1 rounded bg-gray-50 dark:bg-slate-800/60 hover:bg-gray-100 dark:hover:bg-slate-700/50 border-l-2 border-purple-400 flex items-start gap-3">';
 			html += '<div class="flex-1 min-w-0">';
 			html += '<div>' + esc(t('Load File AID / Package AID:')) + ' ' + (o.aid ? jcAidHtml(o.aid) : '?') + '</div>';
 			html += '<div>' + esc(t('Lifecycle:')) + ' ' + ramFmtLifecycle(o.lifecycle || '') + '</div>';
@@ -8896,7 +8896,7 @@ function ramRenderExploreHtml(mem, isd, apps, elfs, fmt) {
 			// Module rows: emitted as sibling rows so their Install buttons share
 			// the same action column as the entry buttons.
 			(o.moduleAids || []).forEach(m => {
-				html += '<div class="mb-1 pl-6 flex items-start gap-3">';
+				html += '<div class="mb-1 pl-6 pr-2 py-1 rounded bg-gray-100/60 dark:bg-slate-800/40 hover:bg-gray-200/60 dark:hover:bg-slate-700/40 flex items-start gap-3">';
 				html += '<div class="flex-1 min-w-0">- ' + jcAidHtml(m) + '</div>';
 				html += '<div class="w-28 shrink-0 flex flex-col gap-1">';
 				// A loaded applet class with no instance yet: one click to the
diff --git a/frontend/style.css b/frontend/style.css
index 63be6ee..f54efca 100644
--- a/frontend/style.css
+++ b/frontend/style.css
@@ -672,6 +672,14 @@ video {
   z-index: 50;
 }
 
+.col-span-2 {
+  grid-column: span 2 / span 2;
+}
+
+.col-span-4 {
+  grid-column: span 4 / span 4;
+}
+
 .mx-3 {
   margin-left: 0.75rem;
   margin-right: 0.75rem;
@@ -743,6 +751,10 @@ video {
   margin-left: 1rem;
 }
 
+.ml-7 {
+  margin-left: 1.75rem;
+}
+
 .ml-8 {
   margin-left: 2rem;
 }
@@ -891,6 +903,10 @@ video {
   width: 6rem;
 }
 
+.w-28 {
+  width: 7rem;
+}
+
 .w-32 {
   width: 8rem;
 }
@@ -956,10 +972,18 @@ video {
   min-width: 14rem;
 }
 
+.min-w-\[16rem\] {
+  min-width: 16rem;
+}
+
 .min-w-\[180px\] {
   min-width: 180px;
 }
 
+.max-w-2xl {
+  max-width: 42rem;
+}
+
 .max-w-3xl {
   max-width: 48rem;
 }
@@ -1173,6 +1197,17 @@ video {
   margin-bottom: calc(1rem * var(--tw-space-y-reverse));
 }
 
+.divide-y > :not([hidden]) ~ :not([hidden]) {
+  --tw-divide-y-reverse: 0;
+  border-top-width: calc(1px * calc(1 - var(--tw-divide-y-reverse)));
+  border-bottom-width: calc(1px * var(--tw-divide-y-reverse));
+}
+
+.divide-gray-100 > :not([hidden]) ~ :not([hidden]) {
+  --tw-divide-opacity: 1;
+  border-color: rgb(243 244 246 / var(--tw-divide-opacity, 1));
+}
+
 .overflow-auto {
   overflow: auto;
 }
@@ -1256,6 +1291,11 @@ video {
   border-top-width: 1px;
 }
 
+.border-amber-400 {
+  --tw-border-opacity: 1;
+  border-color: rgb(251 191 36 / var(--tw-border-opacity, 1));
+}
+
 .border-blue-400 {
   --tw-border-opacity: 1;
   border-color: rgb(96 165 250 / var(--tw-border-opacity, 1));
@@ -1291,10 +1331,20 @@ video {
   border-color: rgb(192 132 252 / var(--tw-border-opacity, 1));
 }
 
+.border-red-300 {
+  --tw-border-opacity: 1;
+  border-color: rgb(252 165 165 / var(--tw-border-opacity, 1));
+}
+
 .border-t-transparent {
   border-top-color: transparent;
 }
 
+.bg-amber-50 {
+  --tw-bg-opacity: 1;
+  background-color: rgb(255 251 235 / var(--tw-bg-opacity, 1));
+}
+
 .bg-amber-600 {
   --tw-bg-opacity: 1;
   background-color: rgb(217 119 6 / var(--tw-bg-opacity, 1));
@@ -1304,11 +1354,21 @@ video {
   background-color: rgb(0 0 0 / 0.5);
 }
 
+.bg-blue-100 {
+  --tw-bg-opacity: 1;
+  background-color: rgb(219 234 254 / var(--tw-bg-opacity, 1));
+}
+
 .bg-blue-600 {
   --tw-bg-opacity: 1;
   background-color: rgb(37 99 235 / var(--tw-bg-opacity, 1));
 }
 
+.bg-emerald-100 {
+  --tw-bg-opacity: 1;
+  background-color: rgb(209 250 229 / var(--tw-bg-opacity, 1));
+}
+
 .bg-emerald-600 {
   --tw-bg-opacity: 1;
   background-color: rgb(5 150 105 / var(--tw-bg-opacity, 1));
@@ -1324,6 +1384,10 @@ video {
   background-color: rgb(243 244 246 / var(--tw-bg-opacity, 1));
 }
 
+.bg-gray-100\/60 {
+  background-color: rgb(243 244 246 / 0.6);
+}
+
 .bg-gray-200 {
   --tw-bg-opacity: 1;
   background-color: rgb(229 231 235 / var(--tw-bg-opacity, 1));
@@ -1497,6 +1561,14 @@ video {
   padding-left: 1.25rem;
 }
 
+.pl-6 {
+  padding-left: 1.5rem;
+}
+
+.pr-2 {
+  padding-right: 0.5rem;
+}
+
 .pt-1 {
   padding-top: 0.25rem;
 }
@@ -1575,10 +1647,19 @@ video {
   font-weight: 600;
 }
 
+.uppercase {
+  text-transform: uppercase;
+}
+
 .italic {
   font-style: italic;
 }
 
+.ordinal {
+  --tw-ordinal: ordinal;
+  font-variant-numeric: var(--tw-ordinal) var(--tw-slashed-zero) var(--tw-numeric-figure) var(--tw-numeric-spacing) var(--tw-numeric-fraction);
+}
+
 .leading-relaxed {
   line-height: 1.625;
 }
@@ -1597,16 +1678,31 @@ video {
   color: rgb(217 119 6 / var(--tw-text-opacity, 1));
 }
 
+.text-amber-700 {
+  --tw-text-opacity: 1;
+  color: rgb(180 83 9 / var(--tw-text-opacity, 1));
+}
+
 .text-blue-600 {
   --tw-text-opacity: 1;
   color: rgb(37 99 235 / var(--tw-text-opacity, 1));
 }
 
+.text-blue-700 {
+  --tw-text-opacity: 1;
+  color: rgb(29 78 216 / var(--tw-text-opacity, 1));
+}
+
 .text-emerald-600 {
   --tw-text-opacity: 1;
   color: rgb(5 150 105 / var(--tw-text-opacity, 1));
 }
 
+.text-emerald-700 {
+  --tw-text-opacity: 1;
+  color: rgb(4 120 87 / var(--tw-text-opacity, 1));
+}
+
 .text-gray-300 {
   --tw-text-opacity: 1;
   color: rgb(209 213 219 / var(--tw-text-opacity, 1));
@@ -1687,6 +1783,11 @@ video {
   color: rgb(148 163 184 / var(--tw-text-opacity, 1));
 }
 
+.text-slate-500 {
+  --tw-text-opacity: 1;
+  color: rgb(100 116 139 / var(--tw-text-opacity, 1));
+}
+
 .text-white {
   --tw-text-opacity: 1;
   color: rgb(255 255 255 / var(--tw-text-opacity, 1));
@@ -1738,6 +1839,11 @@ video {
   background-color: rgb(29 78 216 / var(--tw-bg-opacity, 1));
 }
 
+.hover\:bg-emerald-200:hover {
+  --tw-bg-opacity: 1;
+  background-color: rgb(167 243 208 / var(--tw-bg-opacity, 1));
+}
+
 .hover\:bg-emerald-700:hover {
   --tw-bg-opacity: 1;
   background-color: rgb(4 120 87 / var(--tw-bg-opacity, 1));
@@ -1753,6 +1859,10 @@ video {
   background-color: rgb(229 231 235 / var(--tw-bg-opacity, 1));
 }
 
+.hover\:bg-gray-200\/60:hover {
+  background-color: rgb(229 231 235 / 0.6);
+}
+
 .hover\:bg-gray-300:hover {
   --tw-bg-opacity: 1;
   background-color: rgb(209 213 219 / var(--tw-bg-opacity, 1));
@@ -1793,6 +1903,16 @@ video {
   color: rgb(75 85 99 / var(--tw-text-opacity, 1));
 }
 
+.hover\:text-gray-700:hover {
+  --tw-text-opacity: 1;
+  color: rgb(55 65 81 / var(--tw-text-opacity, 1));
+}
+
+.hover\:text-gray-800:hover {
+  --tw-text-opacity: 1;
+  color: rgb(31 41 55 / var(--tw-text-opacity, 1));
+}
+
 .hover\:text-red-500:hover {
   --tw-text-opacity: 1;
   color: rgb(239 68 68 / var(--tw-text-opacity, 1));
@@ -1816,10 +1936,29 @@ video {
   cursor: not-allowed;
 }
 
+.disabled\:opacity-30:disabled {
+  opacity: 0.3;
+}
+
 .disabled\:opacity-40:disabled {
   opacity: 0.4;
 }
 
+.dark\:divide-slate-700:is(.dark *) > :not([hidden]) ~ :not([hidden]) {
+  --tw-divide-opacity: 1;
+  border-color: rgb(51 65 85 / var(--tw-divide-opacity, 1));
+}
+
+.dark\:border-amber-600:is(.dark *) {
+  --tw-border-opacity: 1;
+  border-color: rgb(217 119 6 / var(--tw-border-opacity, 1));
+}
+
+.dark\:border-red-800:is(.dark *) {
+  --tw-border-opacity: 1;
+  border-color: rgb(153 27 27 / var(--tw-border-opacity, 1));
+}
+
 .dark\:border-slate-600:is(.dark *) {
   --tw-border-opacity: 1;
   border-color: rgb(71 85 105 / var(--tw-border-opacity, 1));
@@ -1839,11 +1978,27 @@ video {
   border-color: rgb(30 41 59 / var(--tw-border-opacity, 1));
 }
 
+.dark\:bg-amber-900\/20:is(.dark *) {
+  background-color: rgb(120 53 15 / 0.2);
+}
+
 .dark\:bg-blue-500:is(.dark *) {
   --tw-bg-opacity: 1;
   background-color: rgb(59 130 246 / var(--tw-bg-opacity, 1));
 }
 
+.dark\:bg-blue-900\/40:is(.dark *) {
+  background-color: rgb(30 58 138 / 0.4);
+}
+
+.dark\:bg-emerald-900\/30:is(.dark *) {
+  background-color: rgb(6 78 59 / 0.3);
+}
+
+.dark\:bg-emerald-900\/40:is(.dark *) {
+  background-color: rgb(6 78 59 / 0.4);
+}
+
 .dark\:bg-red-900\/30:is(.dark *) {
   background-color: rgb(127 29 29 / 0.3);
 }
@@ -1858,11 +2013,24 @@ video {
   background-color: rgb(30 41 59 / var(--tw-bg-opacity, 1));
 }
 
+.dark\:bg-slate-800\/40:is(.dark *) {
+  background-color: rgb(30 41 59 / 0.4);
+}
+
+.dark\:bg-slate-800\/60:is(.dark *) {
+  background-color: rgb(30 41 59 / 0.6);
+}
+
 .dark\:bg-slate-900:is(.dark *) {
   --tw-bg-opacity: 1;
   background-color: rgb(15 23 42 / var(--tw-bg-opacity, 1));
 }
 
+.dark\:text-amber-300:is(.dark *) {
+  --tw-text-opacity: 1;
+  color: rgb(252 211 77 / var(--tw-text-opacity, 1));
+}
+
 .dark\:text-amber-400:is(.dark *) {
   --tw-text-opacity: 1;
   color: rgb(251 191 36 / var(--tw-text-opacity, 1));
@@ -1873,11 +2041,21 @@ video {
   color: rgb(245 158 11 / var(--tw-text-opacity, 1));
 }
 
+.dark\:text-blue-300:is(.dark *) {
+  --tw-text-opacity: 1;
+  color: rgb(147 197 253 / var(--tw-text-opacity, 1));
+}
+
 .dark\:text-blue-400:is(.dark *) {
   --tw-text-opacity: 1;
   color: rgb(96 165 250 / var(--tw-text-opacity, 1));
 }
 
+.dark\:text-emerald-300:is(.dark *) {
+  --tw-text-opacity: 1;
+  color: rgb(110 231 183 / var(--tw-text-opacity, 1));
+}
+
 .dark\:text-emerald-400:is(.dark *) {
   --tw-text-opacity: 1;
   color: rgb(52 211 153 / var(--tw-text-opacity, 1));
@@ -1967,6 +2145,14 @@ video {
   background-color: rgb(51 65 85 / var(--tw-bg-opacity, 1));
 }
 
+.dark\:hover\:bg-slate-700\/40:hover:is(.dark *) {
+  background-color: rgb(51 65 85 / 0.4);
+}
+
+.dark\:hover\:bg-slate-700\/50:hover:is(.dark *) {
+  background-color: rgb(51 65 85 / 0.5);
+}
+
 .dark\:hover\:text-gray-300:hover:is(.dark *) {
   --tw-text-opacity: 1;
   color: rgb(209 213 219 / var(--tw-text-opacity, 1));
diff --git a/frontend/sw.js b/frontend/sw.js
index 2af4142..028b3f4 100644
--- a/frontend/sw.js
+++ b/frontend/sw.js
@@ -1,4 +1,4 @@
-const CACHE = 'simple-v302';
+const CACHE = 'simple-v303';
 const URLS = [
   'index.html',
   'help.html',
diff --git a/frontend/tests/ram.test.js b/frontend/tests/ram.test.js
index be4eb92..94a7bec 100644
--- a/frontend/tests/ram.test.js
+++ b/frontend/tests/ram.test.js
@@ -203,6 +203,9 @@ test('explorer action buttons share a fixed-width column, Install is green', ()
 	delete global.t;
 	// every action cell is the same fixed-width column
 	assert.ok(out.includes('w-28 shrink-0'), out);
+	// rows are visible chips (background + hover) so the button belongs to its row
+	assert.ok(out.includes('bg-gray-50 dark:bg-slate-800/60'), out);
+	assert.ok(out.includes('hover:bg-gray-100 dark:hover:bg-slate-700/50'), out);
 	// the Install button (module without an instance) is green, not blue
 	const inst = /<button onclick="ramInstallFromExplorer[^>]*class="([^"]*)"/.exec(out);
 	assert.ok(inst, out);
diff --git a/pyproject.toml b/pyproject.toml
index c194981..44eab9b 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "pysim-simple-server"
-version = "3.6.29"
+version = "3.6.30"
 description = "HTTP REST server wrapping pysim for the SIMple PWA"
 requires-python = ">=3.8"
 # pysim is a git-only dependency installed explicitly by setup.bat/setup.sh.
diff --git a/pysim_simple_server/server.py b/pysim_simple_server/server.py
index c1499e0..4c28ecc 100644
--- a/pysim_simple_server/server.py
+++ b/pysim_simple_server/server.py
@@ -31,7 +31,7 @@ from osmocom.tlv import BER_TLV_IE
 from osmocom.utils import rpad
 
 
-VERSION = '3.6.29'
+VERSION = '3.6.30'
 
 MAX_ENVELOPE_SEGMENTS = 5  # max SMS segments for outgoing C-APDU in ENVELOPE