diff --git a/lua/gemini/init.lua b/lua/gemini/init.lua
index 492174f..5174446 100644
--- a/lua/gemini/init.lua
+++ b/lua/gemini/init.lua
@@ -12,7 +12,7 @@ local function get_current_buffer_content()
     return table.concat(lines, "\n")
 end
 
-local function setup_treesitter_highlight(bufnr)
+local function setup_chat_highlighting(bufnr)
     -- Enable treesitter for the buffer
     vim.api.nvim_buf_set_option(bufnr, 'syntax', '')
     local success = pcall(vim.treesitter.start, bufnr, "markdown")
@@ -20,6 +20,14 @@ local function setup_treesitter_highlight(bufnr)
         -- Fallback to basic markdown syntax if treesitter fails
         vim.api.nvim_buf_set_option(bufnr, 'syntax', 'markdown')
     end
+
+    -- Create syntax groups for user input and separators
+    vim.cmd([[
+        highlight GeminiUser guifg=#88C0D0 gui=bold
+        highlight GeminiSeparator guifg=#616E88 gui=bold
+        syntax match GeminiUser /^User:.*$/
+        syntax match GeminiSeparator /^━━━━━━━━━━━━━━━━━━━━━━━━━━$/ 
+    ]])
 end
 
 local function update_chat_window(new_content)
@@ -87,8 +95,8 @@ local function update_chat_window(new_content)
         vim.api.nvim_win_set_option(chat_winnr, 'linebreak', true)
         vim.api.nvim_win_set_option(chat_winnr, 'breakindent', true)
 
-        -- Setup treesitter highlighting
-        setup_treesitter_highlight(chat_bufnr)
+        -- Setup custom highlighting
+        setup_chat_highlighting(chat_bufnr)
 
         -- Set window-local keymaps
         vim.keymap.set('n', 'q', function()
@@ -109,6 +117,10 @@ local function update_chat_window(new_content)
     -- Make buffer modifiable
     vim.api.nvim_buf_set_option(chat_bufnr, 'modifiable', true)
     
+    -- Add separator before new content
+    local separator = "━━━━━━━━━━━━━━━━━━━━━━━━━━"
+    vim.api.nvim_buf_set_lines(chat_bufnr, -1, -1, false, {separator})
+    
     -- Update content
     vim.api.nvim_buf_set_lines(chat_bufnr, -1, -1, false, vim.split(new_content, "\n"))
     
@@ -129,7 +141,7 @@ end
 local function gemini_query(prompt, context)
     local response = api.get_response(prompt, context)
     if response then
-        local formatted_content = "\n\nUser: " .. prompt .. "\n\nAssistant: " .. response
+        local formatted_content = "\nUser: " .. prompt .. "\n\nAssistant: " .. response
         update_chat_window(formatted_content)
     else
         vim.notify("Failed to get a response from Gemini API", vim.log.levels.ERROR)