1### index.css
2
3```css
4/* This is Tailwind 4 CSS file */
5/* Extending Tailwind configuration */
6/* Use shadcn/ui format to extend the configuration */
7/* Add only the styles that your component needs */
8
9/* Base imports */
10@import "tailwindcss";
11@import "tw-animate-css";
12@import url("https://fonts.googleapis.com/css2?family=Inter:ital,opsz,wght@0,14..32,100..900;1,14..32,100..900&display=swap");
13
14/* Custom dark variant for targeting dark mode elements */
15@custom-variant dark (&:is(.dark *));
16
17/* CSS variables and theme definitions */
18@theme inline {
19  --radius-sm: calc(var(--radius) - 4px);
20  --radius-md: calc(var(--radius) - 2px);
21  --radius-lg: var(--radius);
22  --radius-xl: calc(var(--radius) + 4px);
23  --color-background: var(--background);
24  --color-foreground: var(--foreground);
25  --color-card: var(--card);
26  --color-card-foreground: var(--card-foreground);
27  --color-popover: var(--popover);
28  --color-popover-foreground: var(--popover-foreground);
29  --color-primary: var(--primary);
30  --color-primary-foreground: var(--primary-foreground);
31  --color-secondary: var(--secondary);
32  --color-secondary-foreground: var(--secondary-foreground);
33  --color-muted: var(--muted);
34  --color-muted-foreground: var(--muted-foreground);
35  --color-accent: var(--accent);
36  --color-accent-foreground: var(--accent-foreground);
37  --color-destructive: var(--destructive);
38  --color-border: var(--border);
39  --color-input: var(--input);
40  --color-ring: var(--ring);
41  --color-chart-1: var(--chart-1);
42  --color-chart-2: var(--chart-2);
43  --color-chart-3: var(--chart-3);
44  --color-chart-4: var(--chart-4);
45  --color-chart-5: var(--chart-5);
46  --color-sidebar: var(--sidebar);
47  --color-sidebar-foreground: var(--sidebar-foreground);
48  --color-sidebar-primary: var(--sidebar-primary);
49  --color-sidebar-primary-foreground: var(--sidebar-primary-foreground);
50  --color-sidebar-accent: var(--sidebar-accent);
51  --color-sidebar-accent-foreground: var(--sidebar-accent-foreground);
52  --color-sidebar-border: var(--sidebar-border);
53  --color-sidebar-ring: var(--sidebar-ring);
54}
55
56/* Light theme variables */
57:root {
58  --radius: 0.625rem;
59  --background: oklch(1 0 0);
60  --foreground: oklch(0.145 0 0);
61  --card: oklch(1 0 0);
62  --card-foreground: oklch(0.145 0 0);
63  --popover: oklch(1 0 0);
64  --popover-foreground: oklch(0.145 0 0);
65  --primary: oklch(0.205 0 0);
66  --primary-foreground: oklch(0.985 0 0);
67  --secondary: oklch(0.97 0 0);
68  --secondary-foreground: oklch(0.205 0 0);
69  --muted: oklch(0.97 0 0);
70  --muted-foreground: oklch(0.556 0 0);
71  --accent: oklch(0.97 0 0);
72  --accent-foreground: oklch(0.205 0 0);
73  --destructive: oklch(0.577 0.245 27.325);
74  --border: oklch(0.922 0 0);
75  --input: oklch(0.922 0 0);
76  --ring: oklch(0.708 0 0);
77  --chart-1: oklch(0.646 0.222 41.116);
78  --chart-2: oklch(0.6 0.118 184.704);
79  --chart-3: oklch(0.398 0.07 227.392);
80  --chart-4: oklch(0.828 0.189 84.429);
81  --chart-5: oklch(0.769 0.188 70.08);
82  --sidebar: oklch(0.985 0 0);
83  --sidebar-foreground: oklch(0.145 0 0);
84  --sidebar-primary: oklch(0.205 0 0);
85  --sidebar-primary-foreground: oklch(0.985 0 0);
86  --sidebar-accent: oklch(0.97 0 0);
87  --sidebar-accent-foreground: oklch(0.205 0 0);
88  --sidebar-border: oklch(0.922 0 0);
89  --sidebar-ring: oklch(0.708 0 0);
90}
91
92/* Dark theme variables */
93.dark {
94  --background: oklch(0.145 0 0);
95  --foreground: oklch(0.985 0 0);
96  --card: oklch(0.205 0 0);
97  --card-foreground: oklch(0.985 0 0);
98  --popover: oklch(0.205 0 0);
99  --popover-foreground: oklch(0.985 0 0);
100  --primary: oklch(0.922 0 0);
101  --primary-foreground: oklch(0.205 0 0);
102  --secondary: oklch(0.269 0 0);
103  --secondary-foreground: oklch(0.985 0 0);
104  --muted: oklch(0.269 0 0);
105  --muted-foreground: oklch(0.708 0 0);
106  --accent: oklch(0.269 0 0);
107  --accent-foreground: oklch(0.985 0 0);
108  --destructive: oklch(0.704 0.191 22.216);
109  --border: oklch(1 0 0 / 10%);
110  --input: oklch(1 0 0 / 15%);
111  --ring: oklch(0.556 0 0);
112  --chart-1: oklch(0.488 0.243 264.376);
113  --chart-2: oklch(0.696 0.17 162.48);
114  --chart-3: oklch(0.769 0.188 70.08);
115  --chart-4: oklch(0.627 0.265 303.9);
116  --chart-5: oklch(0.645 0.246 16.439);
117  --sidebar: oklch(0.205 0 0);
118  --sidebar-foreground: oklch(0.985 0 0);
119  --sidebar-primary: oklch(0.488 0.243 264.376);
120  --sidebar-primary-foreground: oklch(0.985 0 0);
121  --sidebar-accent: oklch(0.269 0 0);
122  --sidebar-accent-foreground: oklch(0.985 0 0);
123  --sidebar-border: oklch(1 0 0 / 10%);
124  --sidebar-ring: oklch(0.556 0 0);
125}
126
127/* Tailwind base styles */
128@layer base {
129  * {
130    @apply border-border outline-ring/50;
131  }
132  body {
133    @apply bg-background text-foreground;
134  }
135}
136
137.smoothed {
138  -webkit-font-smoothing: antialiased;
139  -moz-osx-font-smoothing: grayscale;
140}
141
142input::placeholder {
143  opacity: 0.6;
144}
145```
146
147### App.tsx
148
149```tsx
150// This is a infrastructure component that renders demos
151// Please do not modify this file
152
153function App() {
154  return (
155    
156      
157        {/* Avatar */}
158        
159          
160            
161          
162        
163
164        {/* Title */}
165        
166          What's on the agenda today?
167        
168
169        {/* Subtitle */}
170        
171          Ask me anything, and I'll help you get things done.
172        
173
174        {/* Input Container */}
175        <div
176          className="bg-white mb-4 transition-shadow"
177          style={{
178            borderRadius: "16px",
179            boxShadow:
180              "0 32px 56px -12px rgba(0, 0, 0, 0.02), 0 6px 12px -3px rgba(0, 0, 0, 0.02), 0 3px 6px -1.5px rgba(0, 0, 0, 0.01), 0 0 0 0.75px rgba(0, 0, 0, 0.04)",
181            width: "540px",
182            height: "88px",
183            padding: "8px",
184            zIndex: 999,
185          }}
186          onMouseEnter={(e) => {
187            e.currentTarget.style.boxShadow =
188              "0 32px 56px -12px rgba(0, 0, 0, 0.06), 0 6px 12px -3px rgba(0, 0, 0, 0.02), 0 3px 6px -1.5px rgba(0, 0, 0, 0.01), 0 0 0 0.75px rgba(0, 0, 0, 0.04)";
189          }}
190          onMouseLeave={(e) => {
191            e.currentTarget.style.boxShadow =
192              "0 32px 56px -12px rgba(0, 0, 0, 0.02), 0 6px 12px -3px rgba(0, 0, 0, 0.02), 0 3px 6px -1.5px rgba(0, 0, 0, 0.01), 0 0 0 0.75px rgba(0, 0, 0, 0.04)";
193          }}
194          onClick={(e) => {
195            e.currentTarget.style.boxShadow =
196              "0 32px 56px -12px rgba(0, 0, 0, 0.02), 0 6px 12px -3px rgba(0, 0, 0, 0.02), 0 3px 6px -1.5px rgba(0, 0, 0, 0.01), 0 0 0 0.75px rgba(0, 0, 0, 0.04)";
197          }}
198          data-ws-id="Hs4j1XYwPuJmmMzo"
199        >
200          
201            {/* Input Row */}
202            
203              
204            
205
206            {/* Bottom Row with Attachment and Send */}
207            
208              {/* Attachment Icon */}
209              
210                
211                  
212                    
213                  
214                
215              
216
217              {/* Send Button */}
218              
219                Send
220              
221            
222          
223        
224
225        {/* Quick Action Buttons */}
226        
227          
228            Help me write an email
229          
230          
231            Explain concept
232          
233          
234            Plan my day
235          
236        
237
238        {/* Footer Text */}
239        
240          Press Enter to send, Shift + Enter for new line
241        
242      
243    
244  );
245}
246export default App;
247```
248