:root{--bg-color: #f5f7fa;--chat-bg: #ffffff;--user-msg-bg: #1a365d;--user-msg-color: #ffffff;--model-msg-bg: #f0fdf4;--model-msg-color: #1a365d;--header-bg: #1a365d;--header-color: #ffffff;--border-radius: 12px;--font-family: "Inter", sans-serif;--accent-color: #38a169;--primary-color: #1a365d;--border-color: #e2e8f0}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-family);background-color:var(--bg-color);height:100vh;display:flex;justify-content:center;align-items:center}#root{width:100%;max-width:900px;height:90vh;display:flex;flex-direction:column;background-color:var(--chat-bg);border-radius:var(--border-radius);box-shadow:0 4px 30px #1a365d26;overflow:hidden;border:1px solid var(--border-color)}header{background:linear-gradient(135deg,#1a365d,#153e75);color:var(--header-color);padding:18px 24px;text-align:center;display:flex;align-items:center;justify-content:center;gap:12px}header h1{font-size:1.375rem;font-weight:600;letter-spacing:-.5px}#chat-container{flex:1;overflow-y:auto;padding:24px;display:flex;flex-direction:column;gap:16px;background:linear-gradient(180deg,#fff,#f8fafc)}#chat-container::-webkit-scrollbar{width:6px}#chat-container::-webkit-scrollbar-track{background:#f1f5f9}#chat-container::-webkit-scrollbar-thumb{background:#cbd5e0;border-radius:3px}#chat-container::-webkit-scrollbar-thumb:hover{background:#a0aec0}.message{max-width:80%;padding:14px 18px;border-radius:var(--border-radius);line-height:1.6;animation:fadeIn .3s ease-out}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.user-message{align-self:flex-end;background-color:var(--user-msg-bg);color:var(--user-msg-color);border-radius:12px 12px 4px}.model-message{align-self:flex-start;background-color:var(--model-msg-bg);color:var(--model-msg-color);border:1px solid #c6f6d5;border-radius:12px 12px 12px 4px}.message-role{font-size:.7rem;font-weight:600;margin-bottom:6px;opacity:.7;text-transform:uppercase;letter-spacing:.5px}.user-message .message-role{color:#fffc}.model-message .message-role{color:var(--accent-color)}.message-content{word-wrap:break-word}.message-content p{margin-bottom:8px}.message-content p:last-child{margin-bottom:0}.message-content ul,.message-content ol{margin-left:20px;margin-bottom:8px}.message-content li{margin-bottom:4px}.message-content code{background-color:#1a365d14;padding:2px 6px;border-radius:4px;font-family:Fira Code,Consolas,monospace;font-size:.9em;color:#1a365d}.message-content pre{background-color:#1a365d;padding:14px;border-radius:8px;overflow-x:auto;margin:10px 0;border:1px solid #2d3748}.message-content pre code{background:none;padding:0;color:#e2e8f0}.message-content a{color:var(--accent-color);text-decoration:none;font-weight:500}.message-content a:hover{text-decoration:underline}.message-content strong{font-weight:600;color:#1a365d}.model-message .message-content strong{color:#1a365d}.user-message .message-content strong{color:#fff}.message-content table{border-collapse:collapse;width:100%;margin:10px 0;font-size:.9em}.message-content th,.message-content td{border:1px solid #e2e8f0;padding:10px 12px;text-align:left}.message-content th{background-color:#f0fdf4;font-weight:600;color:#1a365d}.message-content td{background-color:#fff}.loading-indicator{display:flex;gap:6px;padding:16px;align-items:center;background-color:transparent!important;border:none!important}.loading-indicator .dot{width:10px;height:10px;background-color:var(--accent-color);border-radius:50%;animation:bounce 1.4s infinite ease-in-out both}.loading-indicator .dot:nth-child(1){animation-delay:-.32s}.loading-indicator .dot:nth-child(2){animation-delay:-.16s}@keyframes bounce{0%,80%,to{transform:scale(0)}40%{transform:scale(1)}}#chat-form{display:flex;padding:16px 20px;gap:12px;border-top:1px solid var(--border-color);background-color:#fff}#chat-form input{flex:1;padding:14px 20px;border:2px solid var(--border-color);border-radius:24px;font-size:1rem;outline:none;transition:border-color .2s,box-shadow .2s;background-color:#f8fafc;color:#1a365d}#chat-form input::placeholder{color:#a0aec0}#chat-form input:focus{border-color:var(--primary-color);box-shadow:0 0 0 3px #1a365d26;background-color:#fff}#chat-form button{padding:14px 28px;background-color:var(--primary-color);color:#fff;border:none;border-radius:24px;font-size:1rem;font-weight:600;cursor:pointer;transition:background-color .2s,transform .1s,box-shadow .2s}#chat-form button:hover:not(:disabled){background-color:#153e75;transform:translateY(-1px);box-shadow:0 4px 12px #1a365d4d}#chat-form button:active:not(:disabled){transform:translateY(0)}#chat-form button:disabled{opacity:.5;cursor:not-allowed}@media(max-width:600px){body{background-color:#fff}#root{height:100vh;border-radius:0;border:none;box-shadow:none}.message{max-width:90%}header h1{font-size:1.2rem}#chat-form{padding:12px}#chat-form button{padding:14px 20px}}