diff --git a/chat.html b/chat.html
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index 0000000..0074fc4
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+++ b/chat.html
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+<!DOCTYPE html>
+<html lang="en">
+    <head>
+        <meta charset="UTF-8" />
+        <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+        <title>Cet ci pi ti</title>
+        <script src="https://cdn.jsdelivr.net/npm/marked/marked.min.js"></script>
+        <style>
+            :root {
+                /* Light theme variables */
+                --bg-primary: #ffffff;
+                --bg-secondary: hsl(220, 20%, 90%);
+                --bg-user-message: hsl(220, 58%, 80%);
+                --bg-code: #f8f8f8;
+                --text-primary: #2c3e50;
+                --text-user: hsl(220, 78%, 22%);
+                --border-color: #e1e1e1;
+            }
+
+            @media (prefers-color-scheme: dark) {
+                :root {
+                    /* Dark theme variables */
+                    --bg-primary: #1a1a1a;
+                    --bg-secondary: hsl(220, 20%, 15%);
+                    --bg-user-message: hsl(220, 30%, 25%);
+                    --bg-code: #2d2d2d;
+                    --text-primary: #e1e1e1;
+                    --text-user: hsl(220, 58%, 80%);
+                    --border-color: #404040;
+                }
+            }
+
+            *,
+            *::before,
+            *::after {
+                box-sizing: border-box;
+                font-family: inherit;
+            }
+
+            body {
+                margin: 0;
+                font-family: menlo, consolas, monospace;
+                line-height: 1.6;
+                font-size: 14px;
+                background-color: var(--bg-primary);
+                color: var(--text-primary);
+            }
+
+            .chat-container {
+                height: 100vh;
+                display: grid;
+                grid-template-columns: 1fr min-content;
+                grid-template-rows: 1fr min-content;
+                gap: 1rem;
+                padding: 1rem;
+                grid-template-areas:
+                    "messages messages"
+                    "prompt submit";
+            }
+
+            .messages {
+                grid-area: messages;
+                overflow-y: auto;
+                padding-right: 0.5rem;
+            }
+
+            .message {
+                padding: 0.8rem 1.2rem;
+                border-radius: 0.8rem;
+                max-width: 85%;
+            }
+
+            textarea,
+            button {
+                font-size: inherit;
+            }
+
+            .message + .message {
+                margin-top: 1rem;
+            }
+
+            .user-message {
+                color: var(--text-user);
+                background: var(--bg-user-message);
+                margin-left: auto;
+            }
+
+            .system-message {
+                background: var(--bg-secondary);
+                margin-right: auto;
+            }
+
+            .system-message pre,
+            .system-message code {
+                background: var(--bg-code);
+                padding: 0.5rem;
+                border-radius: 0.4rem;
+                white-space: pre;
+                overflow-x: auto;
+            }
+
+            .system-message code {
+                padding: 2px 4px;
+            }
+
+            .prompt {
+                grid-area: prompt;
+                min-height: 40px;
+                padding: 0.8rem;
+                border: 1px solid var(--border-color);
+                border-radius: 0.4rem;
+                background: var(--bg-primary);
+                color: var(--text-primary);
+                resize: vertical;
+            }
+
+            .submit {
+                grid-area: submit;
+                cursor: pointer;
+                padding: 0.8rem 1.6rem;
+                background: var(--bg-secondary);
+                color: var(--text-primary);
+                border: 1px solid var(--border-color);
+                border-radius: 0.4rem;
+                transition: background-color 0.2s ease;
+            }
+
+            .submit:hover {
+                background: var(--bg-user-message);
+            }
+
+            /* Scrollbar styling */
+            .messages::-webkit-scrollbar {
+                width: 4px;
+            }
+
+            .messages::-webkit-scrollbar-track {
+                background: var(--bg-primary);
+            }
+
+            .messages::-webkit-scrollbar-thumb {
+                background: var(--border-color);
+                border-radius: 4px;
+            }
+
+            /* Focus styles */
+            .prompt:focus,
+            .submit:focus {
+                outline: none;
+                border-color: var(--bg-user-message);
+            }
+        </style>
+    </head>
+    <body>
+        <div id="app">
+            <div class="chat-container">
+                <div id="messages" class="messages"></div>
+                <textarea rows="5" id="prompt" class="prompt" placeholder="Type your message..."></textarea>
+                <button id="submit" class="submit">Send</button>
+            </div>
+        </div>
+        <script>
+            window.env ??= {};
+            let abortController = null;
+            const messages = [{ role: "system", content: "You are a helpful AI assistant." }];
+
+            const $messages = document.getElementById("messages");
+            const $prompt = document.getElementById("prompt");
+            const $submit = document.getElementById("submit");
+
+            $submit.addEventListener("click", () => {
+                if (abortController) {
+                    abortController.abort();
+                } else {
+                    handleSubmit();
+                }
+            });
+
+            $prompt.addEventListener("keydown", (e) => {
+                if (e.key === "Enter" && (e.ctrlKey || e.metaKey)) {
+                    e.preventDefault();
+                    if (!abortController) {
+                        handleSubmit();
+                    }
+                }
+            });
+
+            const injectedPrompt = window.env.PROMPT?.trim() ?? "";
+            if (injectedPrompt) {
+                $prompt.value = injectedPrompt + "\n\n";
+            }
+            $prompt.focus();
+
+            async function handleSubmit() {
+                const prompt = $prompt.value.trim();
+                if (!prompt) return;
+
+                // Add user message
+                const userMessage = createMessageElement(prompt, true);
+                $messages.appendChild(userMessage);
+                messages.push({ role: "user", content: prompt });
+
+                // Prepare for system response
+                const systemMessage = createMessageElement("", false);
+                $messages.appendChild(systemMessage);
+                let fullResponse = "";
+
+                // Clear input and scroll
+                $prompt.value = "";
+                scrollToBottom($messages);
+
+                // Update button state
+                $submit.textContent = "Cancel";
+                abortController = new AbortController();
+
+                const chat = {
+                    chatgpt: (params) =>
+                        chatWithOpenAI({ ...params, apiKey: window.env.OPENAI_API_KEY, model: "gpt-4o" }),
+                    claude: (params) =>
+                        chatWithClaude({
+                            ...params,
+                            apiKey: window.env.ANTHROPIC_API_KEY,
+                            model: "claude-3-5-sonnet-20241022",
+                        }),
+                }[window.env.MODEL ?? "claude"];
+                if (!chat) {
+                    console.error(`Unknown model: ${window.env.MODEL}`);
+                    return;
+                }
+
+                try {
+                    await chat({
+                        onContent: (content) => {
+                            fullResponse += content;
+                            updateMessageContent(systemMessage, fullResponse);
+                            scrollToBottom($messages);
+                        },
+                        messages,
+                        signal: abortController.signal,
+                    });
+                    messages.push({ role: "assistant", content: fullResponse });
+                } catch (err) {
+                    if (err.name === "AbortError") {
+                        updateMessageContent(systemMessage, fullResponse + "\n[Cancelled]");
+                    } else {
+                        updateMessageContent(systemMessage, fullResponse + "\n[Error: " + err.message + "]");
+                    }
+                } finally {
+                    $submit.textContent = "Send";
+                    abortController = null;
+                }
+            }
+
+            function createMessageElement(content, isUser) {
+                const message = document.createElement("div");
+                message.className = `message ${isUser ? "user-message" : "system-message"}`;
+                message.innerHTML = marked.parse(content);
+                return message;
+            }
+
+            function scrollToBottom(element) {
+                element.scrollTop = element.scrollHeight;
+            }
+
+            function updateMessageContent(element, content) {
+                element.innerHTML = marked.parse(content);
+            }
+
+            async function chatWithOpenAI({ onContent, messages, signal, apiKey, model }) {
+                const payload = {
+                    model,
+                    messages,
+                    stream: true,
+                };
+
+                const response = await fetch("https://api.openai.com/v1/chat/completions", {
+                    method: "POST",
+                    headers: {
+                        "Content-Type": "application/json",
+                        Authorization: `Bearer ${apiKey}`,
+                    },
+                    body: JSON.stringify(payload),
+                    signal,
+                });
+
+                const reader = response.body.getReader();
+                const decoder = new TextDecoder();
+
+                while (true) {
+                    const { done, value } = await reader.read();
+                    if (done) break;
+
+                    const text = decoder.decode(value, { stream: true });
+                    const lines = text
+                        .split("\n\n")
+                        .filter((line) => !!line.trim())
+                        .map((line) => line.replace("data: ", ""));
+
+                    for (const line of lines) {
+                        if (line === "[DONE]") return;
+                        try {
+                            const parsed = JSON.parse(line);
+                            const content = parsed.choices[0].delta.content;
+                            if (content) {
+                                await onContent(content);
+                            }
+                        } catch (e) {}
+                    }
+                }
+            }
+
+            async function chatWithClaude({ onContent, messages, signal, apiKey, model }) {
+                const payload = {
+                    model,
+                    messages,
+                    stream: true,
+                    max_tokens: 2048,
+                };
+                const systemPrompt = messages.find((message) => message.role === "system")?.content;
+                if (systemPrompt) {
+                    payload.messages = messages.filter((message) => message.role !== "system");
+                    payload.system = systemPrompt;
+                }
+
+                const response = await fetch("https://api.anthropic.com/v1/messages", {
+                    method: "POST",
+                    headers: {
+                        "Content-Type": "application/json",
+                        "x-api-key": apiKey,
+                        "anthropic-version": "2023-06-01",
+                        "anthropic-dangerous-direct-browser-access": "true",
+                    },
+                    body: JSON.stringify(payload),
+                    signal,
+                });
+
+                const reader = response.body.getReader();
+                const decoder = new TextDecoder();
+
+                while (true) {
+                    const { done, value } = await reader.read();
+                    if (done) break;
+
+                    const text = decoder.decode(value, { stream: true });
+                    const lines = text
+                        .split("\n")
+                        .filter((line) => line.trim())
+                        .map((line) => line.replace("data: ", ""));
+
+                    for (const line of lines) {
+                        if (line === "" || line === "[DONE]") continue;
+                        try {
+                            const parsed = JSON.parse(line);
+                            if (parsed.type === "content_block_delta") {
+                                const content = parsed.delta?.text;
+                                if (content) {
+                                    await onContent(content);
+                                }
+                            }
+                        } catch (e) {
+                            console.error("Error parsing line:", e);
+                        }
+                    }
+                }
+            }
+        </script>
+    </body>
+</html>
