From d3454bc39e65cd51a6ca50b5b4564dc9fd00a562 Mon Sep 17 00:00:00 2001
From: Paul <paulbasanets@gmail.com>
Date: Thu, 30 Apr 2026 23:52:03 +0300
Subject: [PATCH] Dashboard: UI polish (typography, palette, modal cleanup)

- Switch UI font to Inter, keep monospace only for code/logs/paths/
  identifiers (loaded via Google Fonts; system fallbacks)
- Refine the light/dark palette with softer borders, clearer text
  hierarchy, and a more nuanced shadow/elevation system; introduce
  --bg-elevated, --border-strong, --shadow-elevated tokens; retain the
  orange accent
- Introduce a consistent spacing scale (--space-1..6) and apply it across
  sections, modals, and controls
- Extract shared modal CSS classes (.modal-info, .modal-hint,
  .modal-prompt, .modal-field, .modal-input, .modal-select,
  .modal-textarea, .modal-actions, .btn-secondary) and strip duplicated
  inline styles from all seven modals; add an accent-colored focus ring
  for inputs/textareas and a subtle backdrop blur
- Replace the native <select> in Add Language with a filterable combobox:
  type to filter, keyboard navigation (Up/Down/Enter/Esc), substring
  highlight, click-outside to close; the typed value is validated against
  the available languages list before submission
- Update CHANGELOG accordingly

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Co-Authored-By: Dominik Jain <dominik.jain@oraios-ai.de>
---
 CHANGELOG.md                                 |   5 +
 src/serena/resources/dashboard/dashboard.css | 451 +++++++++++++++----
 src/serena/resources/dashboard/dashboard.js  | 165 ++++++-
 src/serena/resources/dashboard/index.html    | 120 +++--
 4 files changed, 576 insertions(+), 165 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 21fd058a..18acee50 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,11 @@
 
 Status of the `main` branch. Changes prior to the next official version change will appear here.
 
+* Dashboard:
+  - UI polish: switch UI font to Inter (with system fallbacks) and use JetBrains Mono only for code/logs/paths/identifiers; refine the light/dark palette with softer borders, clearer text hierarchy, and a more nuanced shadow/elevation system; introduce a consistent spacing scale; keep the orange accent.
+  - Modal markup cleanup: extract shared CSS classes (`.modal-info`, `.modal-hint`, `.modal-prompt`, `.modal-field`, `.modal-input`, `.modal-select`, `.modal-textarea`, `.modal-actions`, `.btn-secondary`) and remove duplicated inline styles from all seven modals. Inputs and textareas get an accent-colored focus ring; the modal backdrop has a subtle blur.
+  - Add Language: replace the native `<select>` with a filterable combobox — type to filter, keyboard navigation (Up/Down/Enter/Esc), substring highlight, click-outside to close. The typed value is validated against the available languages list before submission.
+
 # v1.3.0 (2026-05-11)
 
 * General:
diff --git a/src/serena/resources/dashboard/dashboard.css b/src/serena/resources/dashboard/dashboard.css
index eb473e9a..ad658a97 100644
--- a/src/serena/resources/dashboard/dashboard.css
+++ b/src/serena/resources/dashboard/dashboard.css
@@ -3,64 +3,91 @@ html {
 }
 
 :root {
+    /* Typography */
+    --font-sans: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
+    --font-mono: 'JetBrains Mono', 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
+
+    /* Spacing scale */
+    --space-1: 4px;
+    --space-2: 8px;
+    --space-3: 12px;
+    --space-4: 16px;
+    --space-5: 24px;
+    --space-6: 32px;
+
     /* Light theme variables */
     --bg-primary: #f5f5f5;
     --bg-secondary: #ffffff;
-    --text-primary: #000000;
-    --text-secondary: #333333;
-    --text-muted: #666666;
-    --border-color: #ddd;
+    --bg-elevated: #ffffff;
+    --text-primary: #1f2328;
+    --text-secondary: #3f4754;
+    --text-muted: #6a737d;
+    --border-color: #e3e6ea;
+    --border-strong: #d0d7de;
     --btn-primary: #eaa45d;
     --btn-hover: #dca662;
-    --btn-disabled: #6c757d;
-    --shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
-    --tool-highlight: #ffff00;
-    --tool-highlight-text: #000000;
-    --log-debug: #808080;
-    --log-info: #000000;
-    --log-warning: #FF8C00;
-    --log-error: #FF0000;
-    --stats-header: #f8f9fa;
+    --btn-disabled: #adb5bd;
+    --btn-secondary-bg: #f0f2f5;
+    --btn-secondary-hover: #e3e6ea;
+    --shadow: 0 1px 2px rgba(15, 23, 42, 0.04), 0 1px 3px rgba(15, 23, 42, 0.06);
+    --shadow-elevated: 0 4px 12px rgba(15, 23, 42, 0.08);
+    --tool-highlight: #fff3bf;
+    --tool-highlight-text: #1f2328;
+    --log-debug: #8b95a1;
+    --log-info: #1f2328;
+    --log-warning: #d97706;
+    --log-error: #dc2626;
+    --stats-header: #f0f2f5;
     --header-height: 150px;
-    --header-padding: 20px;
-    --header-gap-main: 25px;
-    --frame-padding: 25px;
-    --border-radius: 5px;
+    --header-padding: var(--space-5);
+    --header-gap-main: var(--space-5);
+    --frame-padding: var(--space-5);
+    --border-radius: 6px;
+    --border-radius-sm: 4px;
 }
 
 [data-theme="dark"] {
     /* Dark theme variables */
     --bg-primary: #1a1a1a;
     --bg-secondary: #2d2d2d;
-    --text-primary: #ffffff;
-    --text-secondary: #e0e0e0;
-    --text-muted: #b0b0b0;
-    --border-color: #444;
+    --bg-elevated: #262b32;
+    --text-primary: #e6edf3;
+    --text-secondary: #c9d1d9;
+    --text-muted: #8b95a1;
+    --border-color: #2d333b;
+    --border-strong: #3d444d;
     --btn-primary: #eaa45d;
     --btn-hover: #dca662;
-    --btn-disabled: #6c757d;
-    --shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
-    --tool-highlight: #ffd700;
-    --tool-highlight-text: #000000;
-    --log-debug: #808080;
-    --log-info: #ffffff;
-    --log-warning: #FF8C00;
-    --log-error: #FF0000;
-    --stats-header: #3a3a3a;
+    --btn-disabled: #4a5159;
+    --btn-secondary-bg: #2d333b;
+    --btn-secondary-hover: #3d444d;
+    --shadow: 0 1px 2px rgba(0, 0, 0, 0.25), 0 1px 3px rgba(0, 0, 0, 0.35);
+    --shadow-elevated: 0 4px 12px rgba(0, 0, 0, 0.45);
+    --tool-highlight: #f6c948;
+    --tool-highlight-text: #15181c;
+    --log-debug: #8b95a1;
+    --log-info: #e6edf3;
+    --log-warning: #f59e0b;
+    --log-error: #f87171;
+    --stats-header: #262b32;
 }
 
 .news-section {
     background: var(--bg-secondary);
-    padding: 20px;
+    border: 1px solid var(--border-color);
+    padding: var(--space-5);
     border-radius: var(--border-radius);
     box-shadow: var(--shadow);
-    margin-bottom: 25px;
+    margin-bottom: var(--space-4);
 }
 
 .news-section h2 {
-    margin: 0 0 20px 0;
-    font-size: 18px;
-    color: var(--text-primary);
+    margin: 0 0 var(--space-4) 0;
+    font-size: 15px;
+    font-weight: 600;
+    text-transform: uppercase;
+    letter-spacing: 0.04em;
+    color: var(--text-muted);
 }
 
 .news-item {
@@ -72,6 +99,11 @@ html {
     position: relative;
 }
 
+.news-item a {
+    color: var(--text-muted);
+    text-decoration: underline;
+}
+
 .news-item:last-child {
     margin-bottom: 0;
 }
@@ -144,13 +176,35 @@ html {
 }
 
 body {
-    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
+    font-family: var(--font-sans);
+    font-size: 14px;
+    line-height: 1.5;
+    -webkit-font-smoothing: antialiased;
+    -moz-osx-font-smoothing: grayscale;
     margin: 0;
     background-color: var(--bg-primary);
     color: var(--text-primary);
     transition: background-color 0.3s ease, color 0.3s ease;
 }
 
+h1, h2, h3, h4, h5, h6 {
+    font-weight: 600;
+    letter-spacing: -0.005em;
+}
+
+code, pre, kbd, samp,
+.log-container,
+.memory-editor,
+.project-path,
+.tool-item,
+.stat-tool-name,
+.execution-name,
+.execution-meta,
+.last-execution-name,
+.config-value-mono {
+    font-family: var(--font-mono);
+}
+
 #frame {
     max-width: 1600px;
     margin: 0 auto;
@@ -260,18 +314,20 @@ body {
     background-color: var(--bg-secondary);
     color: var(--text-primary);
     border: 1px solid var(--border-color);
-    padding: 8px 16px;
-    border-radius: 4px;
+    padding: 8px 14px;
+    border-radius: var(--border-radius-sm);
     cursor: pointer;
-    font-size: 16px;
-    transition: background-color 0.3s ease, border-color 0.3s ease;
+    font-size: 14px;
+    font-family: inherit;
+    transition: background-color 0.2s ease, border-color 0.2s ease;
     display: flex;
     align-items: center;
-    gap: 8px;
+    gap: var(--space-2);
 }
 
 .menu-button:hover {
-    background-color: var(--border-color);
+    background-color: var(--btn-secondary-hover);
+    border-color: var(--border-strong);
 }
 
 .menu-dropdown {
@@ -412,7 +468,7 @@ body {
 .overview-container {
     display: grid;
     grid-template-columns: 1fr 400px;
-    gap: 20px;
+    gap: var(--space-5);
 }
 
 .overview-left {
@@ -430,23 +486,30 @@ body {
     background-color: var(--bg-secondary);
     border: 1px solid var(--border-color);
     border-radius: var(--border-radius);
-    padding: 20px;
-    margin-bottom: 20px;
+    padding: var(--space-5);
+    margin-bottom: var(--space-4);
     transition: background-color 0.3s ease, border-color 0.3s ease;
 }
 
 .config-section h2,
 .basic-stats-section h2 {
-    margin-top: 0;
-    color: var(--text-secondary);
+    margin: 0 0 var(--space-4) 0;
+    font-size: 15px;
+    font-weight: 600;
+    text-transform: uppercase;
+    letter-spacing: 0.04em;
+    color: var(--text-muted);
 }
 
 /* Collapsible Headers */
 .collapsible-header {
     margin-top: 0;
     margin-bottom: 0;
-    font-size: 18px;
-    color: var(--text-secondary);
+    font-size: 15px;
+    font-weight: 600;
+    text-transform: uppercase;
+    letter-spacing: 0.04em;
+    color: var(--text-muted);
     cursor: pointer;
     user-select: none;
     display: flex;
@@ -476,13 +539,17 @@ body {
 .config-grid {
     display: grid;
     grid-template-columns: 180px 1fr;
-    gap: 12px;
-    margin-bottom: 20px;
+    gap: var(--space-3);
+    margin-bottom: var(--space-4);
 }
 
 .config-label {
-    font-weight: bold;
-    color: var(--text-secondary);
+    font-weight: 500;
+    color: var(--text-muted);
+    font-size: 13px;
+    text-transform: uppercase;
+    letter-spacing: 0.03em;
+    padding-top: 2px;
 }
 
 .config-value {
@@ -587,30 +654,29 @@ body {
 .basic-stats-section {
     background-color: var(--bg-secondary);
     border: 1px solid var(--border-color);
-    border-radius: 5px;
-    padding: 20px;
-    margin-bottom: 20px;
+    border-radius: var(--border-radius);
+    padding: var(--space-5);
+    margin-bottom: var(--space-4);
     transition: background-color 0.3s ease, border-color 0.3s ease;
 }
 
-.basic-stats-section h2 {
-    margin-top: 0;
-    color: var(--text-secondary);
-}
-
 /* Executions Styles */
 .executions-section {
     background-color: var(--bg-secondary);
     border: 1px solid var(--border-color);
-    border-radius: 5px;
-    padding: 20px;
-    margin-bottom: 20px;
+    border-radius: var(--border-radius);
+    padding: var(--space-5);
+    margin-bottom: var(--space-4);
     transition: background-color 0.3s ease, border-color 0.3s ease;
 }
 
 .executions-section h2 {
-    margin-top: 0;
-    color: var(--text-secondary);
+    margin: 0 0 var(--space-4) 0;
+    font-size: 15px;
+    font-weight: 600;
+    text-transform: uppercase;
+    letter-spacing: 0.04em;
+    color: var(--text-muted);
 }
 
 .execution-list {
@@ -864,40 +930,49 @@ body {
 
 .btn {
     background-color: var(--btn-primary);
-    color: white;
+    color: #fff;
     border: none;
     padding: 8px 16px;
-    border-radius: 4px;
+    border-radius: var(--border-radius-sm);
     cursor: pointer;
     font-size: 14px;
-    transition: background-color 0.3s ease;
+    font-weight: 500;
+    font-family: inherit;
+    transition: background-color 0.2s ease, transform 0.05s ease;
 }
 
 .btn:hover {
     background-color: var(--btn-hover);
 }
 
+.btn:active {
+    transform: translateY(1px);
+}
+
 .btn:disabled {
     background-color: var(--btn-disabled);
     cursor: not-allowed;
+    transform: none;
 }
 
 .theme-toggle {
     display: flex;
     align-items: center;
-    gap: 5px;
+    gap: var(--space-2);
     background-color: var(--bg-secondary);
     color: var(--text-primary);
     border: 1px solid var(--border-color);
-    border-radius: 4px;
-    padding: 8px 16px;
+    border-radius: var(--border-radius-sm);
+    padding: 8px 14px;
     cursor: pointer;
-    font-size: 16px;
-    transition: background-color 0.3s ease, border-color 0.3s ease;
+    font-size: 14px;
+    font-family: inherit;
+    transition: background-color 0.2s ease, border-color 0.2s ease;
 }
 
 .theme-toggle:hover {
-    background-color: var(--border-color);
+    background-color: var(--btn-secondary-hover);
+    border-color: var(--border-strong);
 }
 
 .theme-toggle span {
@@ -1084,27 +1159,28 @@ body {
     width: 100%;
     height: 100%;
     overflow: auto;
-    background-color: rgba(0, 0, 0, 0.5);
+    background-color: rgba(15, 23, 42, 0.55);
+    backdrop-filter: blur(2px);
 }
 
 .modal-content {
-    background-color: var(--bg-primary);
-    margin: 10% auto;
-    padding: 25px;
+    background-color: var(--bg-elevated);
+    margin: 8vh auto;
+    padding: var(--space-5);
     border: 1px solid var(--border-color);
-    border-radius: 8px;
+    border-radius: var(--border-radius);
     width: 90%;
     max-width: 500px;
-    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
+    box-shadow: var(--shadow-elevated);
     position: relative;
 }
 
 .modal-close {
     color: var(--text-muted);
     float: right;
-    font-size: 28px;
-    font-weight: bold;
-    line-height: 20px;
+    font-size: 24px;
+    font-weight: 400;
+    line-height: 1;
     cursor: pointer;
     transition: color 0.2s;
 }
@@ -1116,8 +1192,213 @@ body {
 
 .modal h3 {
     margin-top: 0;
-    margin-bottom: 15px;
+    margin-bottom: var(--space-3);
     color: var(--text-primary);
+    font-size: 17px;
+    font-weight: 600;
+}
+
+/* Shared modal pieces (replace inline styles) */
+.modal-info {
+    margin: var(--space-3) 0;
+    color: var(--text-primary);
+    line-height: 1.5;
+}
+
+.modal-hint {
+    margin: var(--space-3) 0;
+    color: var(--text-muted);
+    font-size: 13px;
+    line-height: 1.5;
+}
+
+.modal-field {
+    margin: var(--space-4) 0;
+}
+
+.modal-field label {
+    display: block;
+    margin-bottom: var(--space-2);
+    font-weight: 500;
+    color: var(--text-primary);
+}
+
+.modal-input,
+.modal-select {
+    box-sizing: border-box;
+    width: 100%;
+    padding: 8px 10px;
+    border-radius: var(--border-radius-sm);
+    border: 1px solid var(--border-strong);
+    background: var(--bg-primary);
+    color: var(--text-primary);
+    font-size: 14px;
+    font-family: var(--font-sans);
+    transition: border-color 0.15s ease, box-shadow 0.15s ease;
+}
+
+.modal-input:focus,
+.modal-select:focus {
+    outline: none;
+    border-color: var(--btn-primary);
+    box-shadow: 0 0 0 3px rgba(234, 164, 93, 0.18);
+}
+
+.modal-textarea {
+    box-sizing: border-box;
+    width: 100%;
+    padding: var(--space-3);
+    border: 1px solid var(--border-strong);
+    border-radius: var(--border-radius-sm);
+    background: var(--bg-primary);
+    color: var(--text-primary);
+    font-family: var(--font-mono);
+    font-size: 13px;
+    line-height: 1.5;
+    resize: vertical;
+    transition: border-color 0.15s ease, box-shadow 0.15s ease;
+}
+
+.modal-textarea:focus {
+    outline: none;
+    border-color: var(--btn-primary);
+    box-shadow: 0 0 0 3px rgba(234, 164, 93, 0.18);
+}
+
+.modal-actions {
+    display: flex;
+    gap: var(--space-2);
+    justify-content: flex-end;
+    margin-top: var(--space-4);
+}
+
+.modal-actions .btn {
+    padding: 8px 16px;
+}
+
+.modal-prompt {
+    margin: var(--space-4) 0;
+    color: var(--text-primary);
+    line-height: 1.5;
+    font-size: 15px;
+}
+
+.btn-secondary {
+    background-color: var(--btn-secondary-bg);
+    color: var(--text-primary);
+}
+
+.btn-secondary:hover {
+    background-color: var(--btn-secondary-hover);
+}
+
+.modal-title-with-meta {
+    margin-bottom: var(--space-4);
+    display: flex;
+    align-items: center;
+    gap: var(--space-2);
+    flex-wrap: wrap;
+}
+
+/* Filterable combobox (used in Add Language modal) */
+.combobox {
+    position: relative;
+}
+
+.combobox-input {
+    padding-right: 28px;
+}
+
+.combobox-caret {
+    position: absolute;
+    top: 50%;
+    right: var(--space-3);
+    transform: translateY(-50%);
+    color: var(--text-muted);
+    font-size: 12px;
+    pointer-events: none;
+    transition: transform 0.15s ease, color 0.15s ease;
+}
+
+.combobox.open .combobox-caret {
+    color: var(--text-primary);
+    transform: translateY(-50%) rotate(180deg);
+}
+
+.combobox-options {
+    position: absolute;
+    top: calc(100% + 4px);
+    left: 0;
+    right: 0;
+    margin: 0;
+    padding: var(--space-1) 0;
+    list-style: none;
+    background: var(--bg-elevated);
+    border: 1px solid var(--border-strong);
+    border-radius: var(--border-radius-sm);
+    box-shadow: var(--shadow-elevated);
+    max-height: 240px;
+    overflow-y: auto;
+    z-index: 20;
+}
+
+.combobox-options li {
+    padding: 6px var(--space-3);
+    color: var(--text-primary);
+    cursor: pointer;
+    font-size: 14px;
+    line-height: 1.4;
+    transition: background-color 0.1s ease;
+}
+
+.combobox-options li.no-match {
+    color: var(--text-muted);
+    font-style: italic;
+    cursor: default;
+}
+
+.combobox-options li:hover:not(.no-match),
+.combobox-options li.highlighted:not(.no-match) {
+    background-color: var(--btn-secondary-hover);
+}
+
+.combobox-options li.highlighted:not(.no-match) {
+    color: var(--text-primary);
+}
+
+.combobox-options li mark {
+    background: transparent;
+    color: var(--btn-primary);
+    font-weight: 600;
+}
+
+.combobox-empty {
+    margin-top: var(--space-2);
+    color: var(--text-muted);
+    font-style: italic;
+    font-size: 13px;
+}
+
+.section-header-row {
+    display: flex;
+    justify-content: space-between;
+    align-items: center;
+}
+
+.section-header-row h2 {
+    margin: 0 0 var(--space-4) 0;
+}
+
+.stats-summary-block {
+    margin-bottom: var(--space-5);
+    text-align: center;
+}
+
+.estimator-name {
+    text-align: center;
+    margin-bottom: var(--space-3);
+    color: var(--text-muted);
+    font-size: 13px;
 }
 
 /* Language Badge Styles */
diff --git a/src/serena/resources/dashboard/dashboard.js b/src/serena/resources/dashboard/dashboard.js
index e48ff3c2..afa71865 100644
--- a/src/serena/resources/dashboard/dashboard.js
+++ b/src/serena/resources/dashboard/dashboard.js
@@ -296,6 +296,10 @@ class Dashboard {
         this.$availableContextsDisplay = $('#available-contexts-display');
         this.$addLanguageModal = $('#add-language-modal');
         this.$modalLanguageSelect = $('#modal-language-select');
+        this.$modalLanguageCombobox = $('#modal-language-combobox');
+        this.$modalLanguageOptions = $('#modal-language-options');
+        this.$modalLanguageEmpty = $('#modal-language-empty');
+        this.modalLanguageAvailable = [];
         this.$modalProjectName = $('#modal-project-name');
         this.$modalAddBtn = $('#modal-add-btn');
         this.$modalCancelBtn = $('#modal-cancel-btn');
@@ -360,6 +364,7 @@ class Dashboard {
         this.$modalAddBtn.click(this.addLanguageFromModal.bind(this));
         this.$modalCancelBtn.click(this.closeLanguageModal.bind(this));
         this.$modalClose.click(this.closeLanguageModal.bind(this));
+        this.bindLanguageCombobox();
         this.$removeModalOkBtn.click(this.confirmRemoveLanguageOk.bind(this));
         this.$removeModalCancelBtn.click(this.closeRemoveLanguageModal.bind(this));
         this.$modalCloseRemove.click(this.closeRemoveLanguageModal.bind(this));
@@ -843,7 +848,7 @@ class Dashboard {
 
         let html = '';
         tools.forEach(function (tool) {
-            html += '<div class="info-item" title="' + tool.name + '">' + tool.name + '</div>';
+            html += '<div class="info-item" title="' + tool.name + '"><code>' + tool.name + '</code></div>';
         });
 
         this.$availableToolsDisplay.html(html);
@@ -1730,7 +1735,10 @@ class Dashboard {
 
     closeLanguageModal() {
         this.$addLanguageModal.fadeOut(200);
-        this.$modalLanguageSelect.empty();
+        this.closeLanguageDropdown();
+        this.$modalLanguageSelect.val('');
+        this.$modalLanguageOptions.empty();
+        this.modalLanguageAvailable = [];
         this.$modalAddBtn.prop('disabled', false).text('Add Language');
     }
 
@@ -1738,19 +1746,19 @@ class Dashboard {
         let self = this;
         $.ajax({
             url: '/get_available_languages', type: 'GET', success: function (response) {
-                const languages = response.languages || [];
-                // Clear all existing options
-                self.$modalLanguageSelect.empty();
+                const languages = (response.languages || []).slice().sort();
+                self.modalLanguageAvailable = languages;
+                self.$modalLanguageSelect.val('');
 
                 if (languages.length === 0) {
-                    // Show message if no languages available
-                    self.$modalLanguageSelect.append($('<option>').val('').text('No languages available to add'));
+                    self.$modalLanguageOptions.empty().hide();
+                    self.$modalLanguageEmpty.show();
+                    self.$modalLanguageSelect.prop('disabled', true).attr('placeholder', 'No languages available');
                     self.$modalAddBtn.prop('disabled', true);
                 } else {
-                    // Add language options
-                    languages.forEach(function (language) {
-                        self.$modalLanguageSelect.append($('<option>').val(language).text(language));
-                    });
+                    self.$modalLanguageEmpty.hide();
+                    self.$modalLanguageSelect.prop('disabled', false).attr('placeholder', 'Type to filter…');
+                    self.renderLanguageOptions('');
                     self.$modalAddBtn.prop('disabled', false);
                 }
             }, error: function (xhr, status, error) {
@@ -1759,12 +1767,141 @@ class Dashboard {
         });
     }
 
+    renderLanguageOptions(filter) {
+        const self = this;
+        const needle = (filter || '').toLowerCase();
+        const matches = this.modalLanguageAvailable.filter(function (lang) {
+            return lang.toLowerCase().includes(needle);
+        });
+
+        this.$modalLanguageOptions.empty();
+        if (matches.length === 0) {
+            this.$modalLanguageOptions.append(
+                $('<li class="no-match"></li>').text('No matches')
+            );
+        } else {
+            matches.forEach(function (lang, idx) {
+                let label = lang;
+                if (needle) {
+                    const i = lang.toLowerCase().indexOf(needle);
+                    if (i !== -1) {
+                        const before = lang.slice(0, i);
+                        const hit = lang.slice(i, i + needle.length);
+                        const after = lang.slice(i + needle.length);
+                        label = $('<span></span>')
+                            .append(document.createTextNode(before))
+                            .append($('<mark></mark>').text(hit))
+                            .append(document.createTextNode(after))
+                            .html();
+                    }
+                }
+                const $li = $('<li role="option"></li>')
+                    .attr('data-value', lang)
+                    .html(label);
+                if (idx === 0) {
+                    $li.addClass('highlighted');
+                }
+                $li.on('mousedown', function (e) {
+                    e.preventDefault(); // keep input focus
+                    self.selectLanguage(lang);
+                });
+                self.$modalLanguageOptions.append($li);
+            });
+        }
+    }
+
+    openLanguageDropdown() {
+        if (this.modalLanguageAvailable.length === 0) return;
+        this.renderLanguageOptions(this.$modalLanguageSelect.val());
+        this.$modalLanguageOptions.show();
+        this.$modalLanguageCombobox.addClass('open');
+    }
+
+    closeLanguageDropdown() {
+        this.$modalLanguageOptions.hide();
+        this.$modalLanguageCombobox.removeClass('open');
+    }
+
+    selectLanguage(lang) {
+        this.$modalLanguageSelect.val(lang);
+        this.closeLanguageDropdown();
+    }
+
+    moveLanguageHighlight(delta) {
+        const $items = this.$modalLanguageOptions.find('li:not(.no-match)');
+        if ($items.length === 0) return;
+        let idx = $items.index($items.filter('.highlighted'));
+        idx = (idx + delta + $items.length) % $items.length;
+        $items.removeClass('highlighted');
+        const $target = $items.eq(idx).addClass('highlighted');
+        const target = $target[0];
+        if (target && target.scrollIntoView) {
+            target.scrollIntoView({ block: 'nearest' });
+        }
+    }
+
+    bindLanguageCombobox() {
+        const self = this;
+        this.$modalLanguageSelect
+            .off('focus.combobox click.combobox input.combobox keydown.combobox')
+            .on('focus.combobox click.combobox', function () { self.openLanguageDropdown(); })
+            .on('input.combobox', function () {
+                self.renderLanguageOptions(self.$modalLanguageSelect.val());
+                self.openLanguageDropdown();
+            })
+            .on('keydown.combobox', function (e) {
+                const key = e.key;
+                if (key === 'ArrowDown') {
+                    e.preventDefault();
+                    if (self.$modalLanguageOptions.is(':visible')) {
+                        self.moveLanguageHighlight(1);
+                    } else {
+                        self.openLanguageDropdown();
+                    }
+                } else if (key === 'ArrowUp') {
+                    e.preventDefault();
+                    self.moveLanguageHighlight(-1);
+                } else if (key === 'Enter') {
+                    const $hl = self.$modalLanguageOptions.find('li.highlighted:not(.no-match)');
+                    if ($hl.length) {
+                        e.preventDefault();
+                        self.selectLanguage($hl.attr('data-value'));
+                    }
+                } else if (key === 'Escape') {
+                    if (self.$modalLanguageOptions.is(':visible')) {
+                        e.stopPropagation(); // don't close the modal
+                        self.closeLanguageDropdown();
+                    }
+                }
+            });
+
+        this.$modalLanguageCombobox
+            .off('click.caret')
+            .on('click.caret', '.combobox-caret', function () {
+                self.$modalLanguageSelect.trigger('focus');
+                self.openLanguageDropdown();
+            });
+
+        $(document).off('mousedown.langCombobox').on('mousedown.langCombobox', function (e) {
+            if (!self.$modalLanguageCombobox.is(':visible')) return;
+            if (!$.contains(self.$modalLanguageCombobox[0], e.target)) {
+                self.closeLanguageDropdown();
+            }
+        });
+    }
+
     addLanguageFromModal() {
-        const selectedLanguage = this.$modalLanguageSelect.val();
-        if (!selectedLanguage) {
-            alert('No language selected or no languages available to add');
+        const typed = (this.$modalLanguageSelect.val() || '').trim();
+        const matched = this.modalLanguageAvailable.find(function (l) {
+            return l.toLowerCase() === typed.toLowerCase();
+        });
+        if (!matched) {
+            alert(typed
+                ? 'Unknown language: ' + typed + '. Pick one from the dropdown.'
+                : 'No language selected.');
             return;
         }
+        const selectedLanguage = matched;
 
         const self = this;
 
diff --git a/src/serena/resources/dashboard/index.html b/src/serena/resources/dashboard/index.html
index 874aecf9..5129bbaf 100644
--- a/src/serena/resources/dashboard/index.html
+++ b/src/serena/resources/dashboard/index.html
@@ -8,6 +8,9 @@
     <link rel="icon" type="image/png" sizes="16x16" href="serena-icon-16.png">
     <link rel="icon" type="image/png" sizes="32x32" href="serena-icon-32.png">
     <link rel="icon" type="image/png" sizes="48x48" href="serena-icon-48.png">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
+    <link href="https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap" rel="stylesheet">
     <link rel="stylesheet" href="dashboard.css">
     <script src="jquery.min.js"></script>
     <script src="https://cdn.jsdelivr.net/npm/chart.js"></script>
@@ -69,8 +72,8 @@
                 </section>
 
                 <section class="config-section">
-                    <div style="display: flex; justify-content: space-between; align-items: center; margin-bottom: 15px;">
-                        <h2 style="margin: 0;">Current Configuration</h2>
+                    <div class="section-header-row">
+                        <h2>Current Configuration</h2>
                     </div>
                     <div id="config-display">
                         <div class="loading">Loading configuration...</div>
@@ -201,9 +204,9 @@
             <button id="clear-stats" class="btn">Clear Stats</button>
         </div>
 
-        <div id="stats-summary" style="margin-bottom:20px; text-align:center;"></div>
-        <div id="estimator-name" style="text-align:center; margin-bottom:10px;"></div>
-        <div id="no-stats-message" style="text-align:center; color:var(--text-muted); font-style:italic; display:none;">
+        <div id="stats-summary" class="stats-summary-block"></div>
+        <div id="estimator-name" class="estimator-name"></div>
+        <div id="no-stats-message" class="no-stats-message" style="display:none;">
             No tool stats collected yet.
         </div>
 
@@ -232,25 +235,26 @@
         <div class="modal-content">
             <span class="modal-close">&times;</span>
             <h3>Add Language</h3>
-            <p id="modal-project-info" style="margin: 15px 0; color: var(--text-primary); line-height: 1.5;">
+            <p id="modal-project-info" class="modal-info">
                 Adding a language to serena config of project <strong id="modal-project-name"></strong>.
             </p>
-            <p style="margin: 15px 0; color: var(--text-muted); font-size: 13px; line-height: 1.5;">
+            <p class="modal-hint">
                 Note that this may download some dependencies needed for the language server and then start it,
                 it may take a few seconds before the LS is responsive.
             </p>
-            <div style="margin: 20px 0;">
-                <label for="modal-language-select" style="display: block; margin-bottom: 8px; font-weight: 500;">Select
-                    Language:</label>
-                <select id="modal-language-select" class="language-select"
-                        style="width: 100%; padding: 8px 10px; border-radius: 4px; border: 1px solid var(--border-color); background: var(--bg-primary); color: var(--text-primary); font-size: 14px;">
-                </select>
+            <div class="modal-field">
+                <label for="modal-language-select">Select Language:</label>
+                <div class="combobox" id="modal-language-combobox">
+                    <input type="text" id="modal-language-select" class="modal-input combobox-input"
+                           placeholder="Type to filter…" autocomplete="off" spellcheck="false">
+                    <span class="combobox-caret" aria-hidden="true">▾</span>
+                    <ul id="modal-language-options" class="combobox-options" role="listbox" style="display:none"></ul>
+                    <div id="modal-language-empty" class="combobox-empty" style="display:none">No languages available to add</div>
+                </div>
             </div>
-            <div style="display: flex; gap: 10px; justify-content: flex-end; margin-top: 20px;">
-                <button id="modal-cancel-btn" class="btn"
-                        style="background: var(--bg-secondary); color: var(--text-primary); padding: 8px 16px;">Cancel
-                </button>
-                <button id="modal-add-btn" class="btn" style="padding: 8px 16px;">Add Language</button>
+            <div class="modal-actions">
+                <button id="modal-cancel-btn" class="btn btn-secondary">Cancel</button>
+                <button id="modal-add-btn" class="btn">Add Language</button>
             </div>
         </div>
     </div>
@@ -259,14 +263,12 @@
     <div id="remove-language-modal" class="modal" style="display:none">
         <div class="modal-content">
             <span class="modal-close modal-close-remove">&times;</span>
-            <p style="margin: 20px 0; color: var(--text-primary); line-height: 1.5; font-size: 15px;">
+            <p class="modal-prompt">
                 Remove language <strong id="remove-language-name"></strong> from configuration?
             </p>
-            <div style="display: flex; gap: 10px; justify-content: flex-end; margin-top: 20px;">
-                <button id="remove-modal-cancel-btn" class="btn"
-                        style="background: var(--bg-secondary); color: var(--text-primary); padding: 8px 16px;">Cancel
-                </button>
-                <button id="remove-modal-ok-btn" class="btn" style="padding: 8px 16px;">OK</button>
+            <div class="modal-actions">
+                <button id="remove-modal-cancel-btn" class="btn btn-secondary">Cancel</button>
+                <button id="remove-modal-ok-btn" class="btn">OK</button>
             </div>
         </div>
     </div>
@@ -275,7 +277,7 @@
     <div id="edit-memory-modal" class="modal" style="display:none">
         <div class="modal-content modal-content-large">
             <span class="modal-close modal-close-edit-memory">&times;</span>
-            <h3 style="margin-bottom: 20px; display: flex; align-items: center; gap: 8px;">
+            <h3 class="modal-title-with-meta">
                 Memory:
                 <span id="edit-memory-name" class="memory-name-display"></span>
                 <span id="edit-memory-rename-btn" class="memory-rename-btn" title="Rename memory">
@@ -286,13 +288,10 @@
                 </span>
                 <input type="text" id="edit-memory-rename-input" class="memory-rename-input" style="display: none;">
             </h3>
-            <textarea id="edit-memory-content" class="memory-editor" rows="20"
-                      style="width: 100%; padding: 10px; border: 1px solid var(--border-color); border-radius: 4px; background: var(--bg-primary); color: var(--text-primary); font-family: 'Courier New', monospace; font-size: 13px; resize: vertical;"></textarea>
-            <div style="display: flex; gap: 10px; justify-content: flex-end; margin-top: 20px;">
-                <button id="edit-memory-cancel-btn" class="btn"
-                        style="background: var(--bg-secondary); color: var(--text-primary); padding: 8px 16px;">Cancel
-                </button>
-                <button id="edit-memory-save-btn" class="btn" style="padding: 8px 16px;">Save</button>
+            <textarea id="edit-memory-content" class="memory-editor modal-textarea" rows="20"></textarea>
+            <div class="modal-actions">
+                <button id="edit-memory-cancel-btn" class="btn btn-secondary">Cancel</button>
+                <button id="edit-memory-save-btn" class="btn">Save</button>
             </div>
         </div>
     </div>
@@ -301,14 +300,12 @@
     <div id="delete-memory-modal" class="modal" style="display:none">
         <div class="modal-content">
             <span class="modal-close modal-close-delete-memory">&times;</span>
-            <p style="margin: 20px 0; color: var(--text-primary); line-height: 1.5; font-size: 15px;">
+            <p class="modal-prompt">
                 Delete memory <strong id="delete-memory-name"></strong>?
             </p>
-            <div style="display: flex; gap: 10px; justify-content: flex-end; margin-top: 20px;">
-                <button id="delete-memory-cancel-btn" class="btn"
-                        style="background: var(--bg-secondary); color: var(--text-primary); padding: 8px 16px;">Cancel
-                </button>
-                <button id="delete-memory-ok-btn" class="btn" style="padding: 8px 16px;">OK</button>
+            <div class="modal-actions">
+                <button id="delete-memory-cancel-btn" class="btn btn-secondary">Cancel</button>
+                <button id="delete-memory-ok-btn" class="btn">OK</button>
             </div>
         </div>
     </div>
@@ -317,26 +314,22 @@
     <div id="create-memory-modal" class="modal" style="display:none">
         <div class="modal-content">
             <span class="modal-close modal-close-create-memory">&times;</span>
-            <p id="create-memory-project-info" style="margin: 15px 0; color: var(--text-primary); line-height: 1.5;">
+            <p id="create-memory-project-info" class="modal-info">
                 Create a new memory for project <strong id="create-memory-project-name"></strong>.
             </p>
-            <p style="margin: 15px 0; color: var(--text-muted); font-size: 13px; line-height: 1.5;">
+            <p class="modal-hint">
                 Memory names should be descriptive and use underscores instead of spaces (e.g., "api_architecture",
                 "testing_guidelines"). Use "/" to organize memories into subdirectories (e.g., "architecture/api_design"),
                 use the "global/" prefix to write memories that are shared across projects (e.g., "global/java/style_guide").
             </p>
-            <div style="margin: 20px 0;">
-                <label for="create-memory-name-input" style="display: block; margin-bottom: 8px; font-weight: 500;">Memory
-                    Name:</label>
-                <input type="text" id="create-memory-name-input" class="memory-name-input"
-                       placeholder="e.g., project_overview or topic/memory_name"
-                       style="width: 100%; padding: 8px 10px; border-radius: 4px; border: 1px solid var(--border-color); background: var(--bg-primary); color: var(--text-primary); font-size: 14px;">
+            <div class="modal-field">
+                <label for="create-memory-name-input">Memory Name:</label>
+                <input type="text" id="create-memory-name-input" class="memory-name-input modal-input"
+                       placeholder="e.g., project_overview or topic/memory_name">
             </div>
-            <div style="display: flex; gap: 10px; justify-content: flex-end; margin-top: 20px;">
-                <button id="create-memory-cancel-btn" class="btn"
-                        style="background: var(--bg-secondary); color: var(--text-primary); padding: 8px 16px;">Cancel
-                </button>
-                <button id="create-memory-create-btn" class="btn" style="padding: 8px 16px;">Create</button>
+            <div class="modal-actions">
+                <button id="create-memory-cancel-btn" class="btn btn-secondary">Cancel</button>
+                <button id="create-memory-create-btn" class="btn">Create</button>
             </div>
         </div>
     </div>
@@ -345,15 +338,13 @@
     <div id="cancel-execution-modal" class="modal" style="display:none">
         <div class="modal-content">
             <span class="modal-close modal-close-cancel-execution">&times;</span>
-            <p style="margin: 20px 0; color: var(--text-primary); line-height: 1.5; font-size: 15px;">
+            <p class="modal-prompt">
                 Are you sure? The execution will continue running until timeout, it will simply no longer be in the queue.
                 Abandoning a running execution is only advised as a measure for unblocking Serena.
             </p>
-            <div style="display: flex; gap: 10px; justify-content: flex-end; margin-top: 20px;">
-                <button id="cancel-execution-cancel-btn" class="btn"
-                        style="background: var(--bg-secondary); color: var(--text-primary); padding: 8px 16px;">Cancel
-                </button>
-                <button id="cancel-execution-ok-btn" class="btn" style="padding: 8px 16px;">OK</button>
+            <div class="modal-actions">
+                <button id="cancel-execution-cancel-btn" class="btn btn-secondary">Cancel</button>
+                <button id="cancel-execution-ok-btn" class="btn">OK</button>
             </div>
         </div>
     </div>
@@ -362,17 +353,14 @@
     <div id="edit-serena-config-modal" class="modal" style="display:none">
         <div class="modal-content modal-content-large">
             <span class="modal-close modal-close-edit-serena-config">&times;</span>
-            <h3 style="margin-bottom: 10px;">Global Serena Configuration</h3>
-            <p style="margin: 10px 0 20px 0; color: var(--text-muted); font-size: 13px; line-height: 1.5;">
+            <h3>Global Serena Configuration</h3>
+            <p class="modal-hint">
                 Note: Changes to the configuration will only take effect after Serena is restarted.
             </p>
-            <textarea id="edit-serena-config-content" class="memory-editor" rows="20"
-                      style="width: 100%; padding: 10px; border: 1px solid var(--border-color); border-radius: 4px; background: var(--bg-primary); color: var(--text-primary); font-family: 'Courier New', monospace; font-size: 13px; resize: vertical;"></textarea>
-            <div style="display: flex; gap: 10px; justify-content: flex-end; margin-top: 20px;">
-                <button id="edit-serena-config-cancel-btn" class="btn"
-                        style="background: var(--bg-secondary); color: var(--text-primary); padding: 8px 16px;">Cancel
-                </button>
-                <button id="edit-serena-config-save-btn" class="btn" style="padding: 8px 16px;">Save</button>
+            <textarea id="edit-serena-config-content" class="memory-editor modal-textarea" rows="20"></textarea>
+            <div class="modal-actions">
+                <button id="edit-serena-config-cancel-btn" class="btn btn-secondary">Cancel</button>
+                <button id="edit-serena-config-save-btn" class="btn">Save</button>
             </div>
         </div>
     </div>