Apply enterprise styling to taskpane UI

Author: darshild1024-cpu

src/taskpane/styles.css

@@ -1,46 +1,59 @@
+@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&display=swap');
 :root {
   color-scheme: light;
+  --bg: #f5f7fb;
+  --panel: #ffffff;
+  --border: #e4e8f1;
+  --text: #0f172a;
+  --muted: #4b5563;
+  --accent: #0b63f6;
+  --accent-soft: #dfeafe;
+  --shadow: 0 12px 30px -14px rgba(15, 23, 42, 0.35);
+  --radius: 14px;
 }
 
 body {
-  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
+  font-family: 'Space Grotesk', 'Segoe UI', system-ui, -apple-system, sans-serif;
   margin: 0;
-  padding: 0;
-  background: #f6f8fb;
+  padding: 16px;
+  background: radial-gradient(circle at 18% 20%, #e8f0ff 0, rgba(232,240,255,0) 30%), radial-gradient(circle at 92% 10%, #dff5ff 0, rgba(223,245,255,0) 25%), var(--bg);
+  color: var(--text);
 }
 
 .shell {
-  padding: 16px;
+  padding: 0;
+  max-width: 460px;
 }
 
 header {
-  margin-bottom: 12px;
+  margin-bottom: 10px;
 }
 
 .eyebrow {
   text-transform: uppercase;
   letter-spacing: 0.1em;
   font-size: 11px;
-  color: #6b7280;
+  color: var(--muted);
 }
 
 h2 {
   margin: 4px 0;
   font-size: 20px;
+  letter-spacing: -0.02em;
 }
 
 .muted {
-  color: #6b7280;
+  color: var(--muted);
   font-size: 12px;
 }
 
 .card {
-  background: #fff;
-  border: 1px solid #e5e7eb;
-  border-radius: 10px;
-  padding: 12px;
-  margin-bottom: 12px;
-  box-shadow: 0 2px 6px rgba(15, 23, 42, 0.06);
+  background: var(--panel);
+  border: 1px solid var(--border);
+  border-radius: var(--radius);
+  padding: 14px;
+  margin-bottom: 14px;
+  box-shadow: var(--shadow);
 }
 
 .card-title {
@@ -62,42 +75,45 @@ h2 {
 
 .label {
   font-size: 12px;
-  color: #6b7280;
+  color: var(--muted);
   margin-bottom: 2px;
 }
 
 input {
   width: 100%;
   padding: 10px;
-  border: 1px solid #e5e7eb;
-  border-radius: 8px;
+  border: 1px solid var(--border);
+  border-radius: 10px;
   box-sizing: border-box;
   font-size: 14px;
   margin: 4px 0;
+  background: #f9fbff;
 }
 
 button {
-  background: #0f172a;
+  background: var(--text);
   color: #fff;
   border: none;
-  border-radius: 8px;
+  border-radius: 10px;
   padding: 10px 14px;
   cursor: pointer;
   font-weight: 600;
+  letter-spacing: -0.01em;
 }
 
 button.secondary {
-  background: #e5e7eb;
-  color: #0f172a;
+  background: #eef1f6;
+  color: var(--text);
 }
 
 .pill {
-  background: #0ea5e9;
+  background: var(--accent);
   color: #fff;
-  padding: 4px 8px;
+  padding: 4px 10px;
   border-radius: 999px;
   display: inline-block;
   font-size: 12px;
+  font-weight: 700;
 }
 
 .results ul {
@@ -125,57 +141,69 @@ button.secondary {
 }
 
 .insert-btn {
-  background: #0ea5e9;
+  background: var(--accent);
   color: #fff;
-  padding: 6px 10px;
+  padding: 8px 12px;
   font-size: 11px;
-  border-radius: 6px;
+  border-radius: 10px;
   white-space: nowrap;
-  font-weight: 500;
+  font-weight: 600;
 }
 
 .insert-btn:hover {
-  background: #0284c7;
+  background: #0a54d6;
 }
 
 .fav-btn {
-  background: #f59e0b;
+  background: linear-gradient(135deg, #f7b500 0%, #e69700 100%);
   color: #fff;
   padding: 6px 10px;
   font-size: 14px;
-  border-radius: 6px;
-  font-weight: 500;
+  border-radius: 10px;
+  font-weight: 600;
 }
 
 .fav-btn:hover {
-  background: #d97706;
+  filter: brightness(0.96);
 }
 
 .tabs {
-  display: flex;
-  gap: 4px;
+  display: grid;
+  grid-template-columns: repeat(auto-fit, minmax(88px, 1fr));
+  gap: 8px;
   margin-bottom: 12px;
-  border-bottom: 1px solid #e5e7eb;
+  border: 1px solid var(--border);
+  border-radius: 16px;
+  padding: 10px;
+  background: var(--panel);
+  box-shadow: var(--shadow);
 }
 
 .tab {
-  background: transparent;
-  color: #6b7280;
-  padding: 8px 12px;
-  font-size: 13px;
-  border: none;
-  border-bottom: 2px solid transparent;
+  background: #f6f8fc;
+  color: #465467;
+  padding: 10px 6px;
+  font-size: 12px;
+  border: 1px solid var(--border);
+  border-radius: 12px;
   cursor: pointer;
-  font-weight: 500;
+  font-weight: 600;
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  gap: 6px;
+  transition: all 0.2s ease;
 }
 
 .tab.active {
-  color: #0f172a;
-  border-bottom-color: #0ea5e9;
+  color: var(--text);
+  border-color: var(--accent);
+  box-shadow: 0 8px 16px -12px rgba(11, 99, 246, 0.6);
+  background: #eef3ff;
 }
 
 .tab:hover {
-  background: #f9fafb;
+  background: #edf1f7;
 }
 
 .preview-btn {