:root{font-family:Inter,system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400}body{margin:0;min-width:320px;min-height:100vh;background-color:#f9fafb}.chat-container{max-width:800px;margin:0 auto;padding:1rem}.messages-container{margin-top:2rem;padding:1rem;border-radius:.5rem;background-color:#fff;box-shadow:0 1px 3px #0000001a;min-height:400px;max-height:600px;overflow-y:auto}.message{padding:1rem;border-radius:.5rem;margin-bottom:1rem}.user-message{background-color:#e5e7eb}.assistant-message{background-color:#f3f4f6}.message-input{width:100%;padding:.5rem;border:1px solid #d1d5db;border-radius:.375rem;margin-right:.5rem}