diff --git a/src/trx-client/trx-frontend/trx-frontend-http/assets/web/index.html b/src/trx-client/trx-frontend/trx-frontend-http/assets/web/index.html
index 851a65d..f1fc238 100644
--- a/src/trx-client/trx-frontend/trx-frontend-http/assets/web/index.html
+++ b/src/trx-client/trx-frontend/trx-frontend-http/assets/web/index.html
@@ -407,7 +407,7 @@
     </div>
     <div class="footer">
       <div class="copyright">
-        Built by <a href="https://www.qrzcq.com/call/SP2SJG" target="_blank" rel="noopener">SP2SJG</a> from <a href="https://haxx.space" target="_blank" rel="noopener">haxx.space</a> · <a href="https://github.com/sgrams/trx-rs" target="_blank" rel="noopener">trx-rs on GitHub</a> — <span id="copyright-year"></span>
+        Built by <a href="https://www.qrzcq.com/call/SP2SJG" target="_blank" rel="noopener">SP2SJG</a> from <a href="https://haxx.space" target="_blank" rel="noopener">haxx.space</a> · <span class="gh-link-wrap"><a class="gh-link" href="https://github.com/sgrams/trx-rs" target="_blank" rel="noopener" aria-label="Open trx-rs on GitHub"><svg class="gh-link-icon" viewBox="0 0 16 16" aria-hidden="true"><path d="M8 0.2a8 8 0 0 0-2.53 15.59c0.4 0.07 0.55-0.17 0.55-0.39l-0.01-1.37c-2.23 0.49-2.7-0.95-2.7-0.95-0.36-0.91-0.89-1.15-0.89-1.15-0.73-0.49 0.06-0.48 0.06-0.48 0.8 0.06 1.22 0.82 1.22 0.82 0.72 1.22 1.88 0.87 2.34 0.67 0.07-0.51 0.28-0.86 0.5-1.06-1.78-0.2-3.64-0.89-3.64-3.95 0-0.87 0.31-1.58 0.81-2.14-0.08-0.2-0.35-1.02 0.08-2.12 0 0 0.67-0.21 2.2 0.82a7.56 7.56 0 0 1 4.01 0c1.53-1.03 2.2-0.82 2.2-0.82 0.43 1.1 0.16 1.92 0.08 2.12 0.51 0.56 0.81 1.27 0.81 2.14 0 3.07-1.87 3.75-3.66 3.95 0.29 0.25 0.54 0.73 0.54 1.48l-0.01 2.2c0 0.22 0.14 0.47 0.55 0.39A8 8 0 0 0 8 0.2Z"></path></svg><span>trx-rs on GitHub</span></a></span> — <span id="copyright-year"></span>
         - <span id="footer-server-build">trx-server v-- --</span>
         - <span id="footer-client-build">trx-client v{ver} {client_build_date}</span>
       </div>
diff --git a/src/trx-client/trx-frontend/trx-frontend-http/assets/web/style.css b/src/trx-client/trx-frontend/trx-frontend-http/assets/web/style.css
index 7db6add..c294d35 100644
--- a/src/trx-client/trx-frontend/trx-frontend-http/assets/web/style.css
+++ b/src/trx-client/trx-frontend/trx-frontend-http/assets/web/style.css
@@ -64,6 +64,7 @@ body {
   font-family: sans-serif;
   margin: 0;
   min-height: 100vh;
+  min-height: 100dvh;
   box-sizing: border-box;
   display: block;
   background: var(--bg);
@@ -78,6 +79,7 @@ body {
   background: transparent;
   box-sizing: border-box;
   min-height: 100vh;
+  min-height: 100dvh;
   display: flex;
   flex-direction: column;
   overflow: visible;
@@ -809,6 +811,34 @@ small { color: var(--text-muted); }
 .copyright { color: var(--text-muted); font-size: 0.75rem; opacity: 0.7; }
 .copyright a { color: var(--accent-green); text-decoration: none; }
 .copyright a:hover { text-decoration: underline; }
+.gh-link-wrap {
+  display: inline-flex;
+  vertical-align: middle;
+  margin: 0 0.15rem;
+}
+.gh-link {
+  display: inline-flex;
+  align-items: center;
+  gap: 0.34rem;
+  padding: 0.18rem 0.5rem;
+  border-radius: 999px;
+  border: 1px solid color-mix(in srgb, var(--border-light) 72%, transparent);
+  background: color-mix(in srgb, var(--btn-bg) 78%, transparent);
+  color: var(--text-heading);
+  line-height: 1;
+  box-shadow: inset 0 1px 0 color-mix(in srgb, #ffffff 8%, transparent);
+}
+.gh-link:hover {
+  text-decoration: none;
+  border-color: color-mix(in srgb, var(--accent-green) 48%, var(--border-light));
+  background: color-mix(in srgb, var(--btn-bg) 90%, transparent);
+}
+.gh-link-icon {
+  width: 0.95rem;
+  height: 0.95rem;
+  flex-shrink: 0;
+  fill: currentColor;
+}
 
 .vol-label {
   display: flex;
@@ -971,13 +1001,19 @@ button:focus-visible, input:focus-visible, select:focus-visible {
 }
 
 @media (max-width: 760px) {
-  .card { padding: 0.7rem 0.7rem 1rem; }
+  .card {
+    padding:
+      calc(0.7rem + env(safe-area-inset-top))
+      calc(0.7rem + env(safe-area-inset-right))
+      calc(1rem + env(safe-area-inset-bottom))
+      calc(0.7rem + env(safe-area-inset-left));
+  }
   button { min-height: 2.8rem; font-size: 0.95rem; }
   input.status-input, select.status-input { font-size: 1.1rem; }
   :root { --header-waterfall-overlap: 0rem; }
-  .controls-tray { width: max(100%, 52rem); padding-left: 0.85rem; padding-right: 0.85rem; }
-  .freq-inline { gap: 0.5rem; }
-  .freq-inline { flex-wrap: wrap; }
+  .controls-tray-scroll { overflow-x: visible; }
+  .controls-tray { width: 100%; padding-left: 0.85rem; padding-right: 0.85rem; }
+  .freq-inline { gap: 0.5rem; flex-wrap: wrap; }
   .header-text { width: auto; min-width: 0; flex: 0 1 auto; }
   .header-main {
     max-width: 100%;
@@ -1015,6 +1051,240 @@ button:focus-visible, input:focus-visible, select:focus-visible {
   .vfo-picker button:last-child { border-bottom: none; }
 }
 
+@media (max-width: 640px) {
+  .card {
+    padding-bottom: calc(5.6rem + env(safe-area-inset-bottom));
+  }
+  .tab-bar {
+    gap: 0.6rem;
+    align-items: stretch;
+    margin-bottom: 1rem;
+    padding-bottom: 0.2rem;
+    border-bottom: none;
+  }
+  .tab-bar-left {
+    gap: 0.55rem;
+    align-items: stretch;
+  }
+  .tab-bar .header-main {
+    width: 100%;
+    max-width: 100%;
+  }
+  .tab-bar .header-logo {
+    height: 2.15rem;
+  }
+  .tab-bar-nav {
+    position: fixed;
+    left: calc(0.6rem + env(safe-area-inset-left));
+    right: calc(0.6rem + env(safe-area-inset-right));
+    bottom: calc(0.55rem + env(safe-area-inset-bottom));
+    z-index: 30;
+    display: grid;
+    grid-template-columns: repeat(4, minmax(0, 1fr));
+    gap: 0.35rem;
+    padding: 0.42rem;
+    border: 1px solid color-mix(in srgb, var(--border-light) 82%, transparent);
+    border-radius: 1rem;
+    background: color-mix(in srgb, var(--card-bg) 90%, transparent);
+    backdrop-filter: blur(18px) saturate(135%);
+    -webkit-backdrop-filter: blur(18px) saturate(135%);
+    box-shadow:
+      0 12px 28px color-mix(in srgb, #000000 22%, transparent),
+      inset 0 1px 0 color-mix(in srgb, #ffffff 10%, transparent);
+    overflow: visible;
+  }
+  .tab {
+    min-height: 3.1rem;
+    padding: 0.45rem 0.25rem;
+    border: 1px solid transparent;
+    border-bottom: none;
+    border-radius: 0.75rem;
+    white-space: nowrap;
+    text-align: center;
+    font-size: 0.82rem;
+    font-weight: 700;
+    line-height: 1.05;
+    background: transparent;
+    color: var(--text-muted);
+  }
+  .tab.active {
+    border-color: color-mix(in srgb, var(--accent-green) 50%, var(--border-light));
+    background: color-mix(in srgb, var(--btn-bg) 86%, transparent);
+    color: var(--text);
+    box-shadow: inset 0 1px 0 color-mix(in srgb, #ffffff 8%, transparent);
+  }
+  .top-bar-actions {
+    width: 100%;
+    justify-content: flex-start;
+    flex-wrap: wrap;
+    gap: 0.45rem;
+  }
+  .header-rig-switch,
+  .header-style-pick {
+    flex: 1 1 12rem;
+    min-width: 0;
+  }
+  .header-rig-switch select,
+  .header-style-pick select {
+    width: 100%;
+    min-width: 0;
+  }
+  .header-bar-btn {
+    flex: 1 1 calc(50% - 0.3rem);
+    min-width: 0;
+  }
+  #tab-main,
+  #tab-plugins,
+  #tab-map,
+  #tab-about {
+    scroll-margin-top: 0.75rem;
+  }
+  .freq-inline {
+    display: grid;
+    grid-template-columns: repeat(2, minmax(0, 1fr));
+    gap: 0.5rem;
+    align-items: start;
+  }
+  .frequency-col {
+    grid-column: 1 / -1;
+  }
+  .center-frequency-col {
+    grid-column: 1 / -1;
+    min-width: 0;
+  }
+  .wavelength-col,
+  .unit-col,
+  .mult-col {
+    min-width: 0;
+  }
+  .wavelength-display,
+  .jog-step,
+  .jog-mult {
+    width: 100%;
+  }
+  .jog-step button,
+  .jog-mult button {
+    flex: 1 1 0;
+  }
+  .signal,
+  .meter {
+    flex-wrap: wrap;
+  }
+  .signal-value,
+  .meter-value {
+    min-width: 0;
+    width: 100%;
+    text-align: left;
+  }
+  .signal-measure {
+    flex-wrap: wrap;
+  }
+  .signal-measure button {
+    flex: 1 1 8rem;
+  }
+  .signal-measure #sig-result {
+    width: 100%;
+  }
+  #spectrum-controls,
+  #spectrum-bw-row,
+  #spectrum-level-row {
+    display: grid;
+    grid-template-columns: minmax(0, 1fr);
+    justify-content: stretch;
+  }
+  #spectrum-controls {
+    gap: 0.5rem;
+    padding-top: 0.45rem;
+  }
+  #spectrum-bw-row,
+  #spectrum-level-row {
+    gap: 0.4rem;
+  }
+  #spectrum-bw-label,
+  #spectrum-floor-label,
+  #spectrum-peak-hold-label {
+    width: 100%;
+    justify-content: space-between;
+  }
+  #spectrum-bw-input,
+  #spectrum-floor-input,
+  #overview-peak-hold {
+    width: 100%;
+    min-width: 0;
+    box-sizing: border-box;
+  }
+  .aprs-controls,
+  .ft8-controls,
+  .cw-controls,
+  .map-controls {
+    flex-wrap: wrap;
+    align-items: stretch;
+  }
+  .aprs-controls > button,
+  .ft8-controls > button,
+  .cw-controls > button {
+    flex: 1 1 auto;
+  }
+  .ft8-filter {
+    min-width: 0;
+    width: 100%;
+    flex-basis: 100%;
+  }
+  .map-controls label {
+    flex: 1 1 calc(50% - 0.5rem);
+    justify-content: center;
+  }
+  .rds-grid {
+    grid-template-columns: minmax(0, 1fr);
+    gap: 0.55rem;
+  }
+  .rds-field {
+    display: grid;
+    grid-template-columns: minmax(0, 1fr);
+    gap: 0.16rem;
+    padding: 0.45rem 0.55rem;
+    border: 1px solid color-mix(in srgb, var(--border-light) 72%, transparent);
+    border-radius: 0.6rem;
+    background: color-mix(in srgb, var(--input-bg) 84%, transparent);
+  }
+  .rds-label {
+    white-space: normal;
+  }
+  .rds-raw-header {
+    flex-wrap: wrap;
+  }
+  #rds-raw-copy-btn {
+    width: 100%;
+  }
+  .about-table,
+  .about-table tbody,
+  .about-table tr,
+  .about-table td {
+    display: block;
+    width: 100%;
+    box-sizing: border-box;
+  }
+  .about-table tr {
+    padding: 0.35rem 0;
+    border-bottom: 1px solid var(--border);
+  }
+  .about-table tr:last-child {
+    border-bottom: none;
+  }
+  .about-table td {
+    padding: 0.15rem 0;
+    border-bottom: none;
+  }
+  .about-table td:first-child {
+    width: 100%;
+  }
+  .footer {
+    flex-direction: column;
+    align-items: flex-start;
+    gap: 0.55rem;
+  }
+}
+
 
 /* ── Spectrum display ─────────────────────────────────────────────────── */
 #spectrum-panel {
@@ -1152,11 +1422,6 @@ button:focus-visible, input:focus-visible, select:focus-visible {
 
 /* ── Phone layout (≤ 520px) ───────────────────────────────────────────── */
 @media (max-width: 520px) {
-  /* Remove forced min-width — no horizontal scroll on phones */
-  .controls-tray {
-    width: 100%;
-  }
-
   /* Single-column controls: jog first, then mode, then power */
   .controls-row {
     grid-template-columns: 1fr;
@@ -1174,10 +1439,30 @@ button:focus-visible, input:focus-visible, select:focus-visible {
   #freq { font-size: clamp(1.3rem, 6vw, 2rem); }
 
   /* Wider volume sliders for touch */
-  .vol-slider { width: clamp(80px, 35vw, 140px); }
+  .vol-slider { width: 100%; }
+  .vol-label {
+    width: 100%;
+    align-items: stretch;
+  }
   .vol-slider::-webkit-slider-thumb { width: 20px; height: 20px; }
   .vol-slider::-moz-range-thumb     { width: 20px; height: 20px; }
 
+  #audio-row .inline {
+    display: grid;
+    grid-template-columns: repeat(2, minmax(0, 1fr));
+    gap: 0.6rem;
+    align-items: stretch;
+  }
+  #rx-audio-btn,
+  #tx-audio-btn,
+  #audio-level,
+  #audio-status {
+    grid-column: 1 / -1;
+  }
+  #audio-level {
+    min-width: 0;
+  }
+
   /* Spectrum control inputs and buttons: meet minimum tap-target size */
   #spectrum-bw-input,
   #spectrum-floor-input {