:root{--primary-color: #3498db;--primary-dark: #2980b9;--bg-color: #f5f5f5;--card-bg: #ffffff;--text-color: #333333;--text-light: #777777;--border-color: #e0e0e0;--user-msg-bg: #3498db;--user-msg-text: #ffffff;--ai-msg-bg: #f1f1f1;--ai-msg-text: #333333;--shadow: 0 4px 12px rgba(0, 0, 0, .1)}.dark{--bg-color: #1a1a1a;--card-bg: #2d2d2d;--text-color: #f0f0f0;--text-light: #aaaaaa;--border-color: #444444;--ai-msg-bg: #3d3d3d;--ai-msg-text: #f0f0f0}*{box-sizing:border-box;margin:0;padding:0}body{font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;background-color:var(--bg-color);color:var(--text-color);line-height:1.6;transition:background-color .3s,color .3s;display:flex;justify-content:center}.app{min-height:100vh;display:flex;flex-direction:column;max-width:1200px;margin:0 auto;padding:20px}.app-header{text-align:center;margin-bottom:30px}.app-header h1{font-size:2.5rem;margin-bottom:10px;color:var(--primary-color)}.app-header p{font-size:1.1rem;color:var(--text-light)}.app-main{flex:1;display:flex;justify-content:center;align-items:flex-start}.app-footer{text-align:center;margin-top:30px;padding:15px;color:var(--text-light);font-size:.9rem}.chat-container{background:var(--card-bg);border-radius:16px;box-shadow:var(--shadow);overflow:hidden;width:100%;max-width:800px;height:600px;display:flex;flex-direction:column;transition:background-color .3s}.chat-header{background:var(--primary-color);color:#fff;padding:15px 20px;display:flex;justify-content:space-between;align-items:center}.chat-header h2{font-size:1.3rem;font-weight:600}.header-controls{display:flex;align-items:center;gap:15px}.status{display:flex;align-items:center;gap:8px;font-size:.9rem}.status-indicator{width:10px;height:10px;background:#2ecc71;border-radius:50%}.theme-toggle{background:transparent;border:none;color:#fff;cursor:pointer;padding:5px;border-radius:50%;display:flex;align-items:center;justify-content:center}.theme-toggle:hover{background:#ffffff1a}.messages-container{flex:1;padding:20px;overflow-y:auto;display:flex;flex-direction:column;gap:15px}.message{display:flex;max-width:80%;gap:10px}.message.user{align-self:flex-end;flex-direction:row-reverse}.message.ai{align-self:flex-start}.message-avatar{width:36px;height:36px;border-radius:50%;background:var(--primary-color);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:.8rem;flex-shrink:0}.message.ai .message-avatar{background:#7f8c8d}.message-content{background:var(--ai-msg-bg);color:var(--ai-msg-text);padding:12px 16px;border-radius:18px;position:relative;box-shadow:0 1px 2px #0000001a}.message.user .message-content{background:var(--user-msg-bg);color:var(--user-msg-text)}.message-content p{margin:0 0 8px;line-height:1.4}.timestamp{font-size:.7rem;opacity:.7;position:absolute;bottom:5px;right:12px}.typing-indicator{display:flex;align-items:center;padding:10px 0;gap:4px}.typing-indicator span{width:8px;height:8px;background:var(--text-light);border-radius:50%;display:inline-block;animation:typing 1.4s infinite both}.typing-indicator span:nth-child(2){animation-delay:.2s}.typing-indicator span:nth-child(3){animation-delay:.4s}@keyframes typing{0%,60%,to{transform:translateY(0);opacity:.5}30%{transform:translateY(-5px);opacity:1}}.input-area{display:flex;padding:15px;border-top:1px solid var(--border-color);gap:10px;align-items:flex-end}.input-area textarea{flex:1;padding:12px 16px;border:1px solid var(--border-color);border-radius:24px;resize:none;font-family:inherit;font-size:1rem;outline:none;background:var(--card-bg);color:var(--text-color);transition:border .3s;max-height:120px;line-height:1.4}.input-area textarea:focus{border-color:var(--primary-color)}.send-button{background:var(--primary-color);color:#fff;border:none;border-radius:50%;width:42px;height:42px;cursor:pointer;display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:background .3s}.send-button:hover:not(:disabled){background:var(--primary-dark)}.send-button:disabled{background:#bdc3c7;cursor:not-allowed}@media (max-width: 768px){.app{padding:10px}.chat-container{height:500px}.message{max-width:90%}.app-header h1{font-size:2rem}}.message.error .message-content{background-color:#ffebee;border:1px solid #f44336}.dark .message.error .message-content{background-color:#4a2c2c;border:1px solid #cf6679}.error-indicator{display:flex;align-items:center;gap:6px;color:#d32f2f;font-size:.8rem;margin-bottom:8px;font-weight:500}.dark .error-indicator{color:#cf6679}.chat-actions{display:flex;gap:8px}.icon-button{background:transparent;border:none;color:#fff;cursor:pointer;padding:6px;border-radius:50%;display:flex;align-items:center;justify-content:center;transition:background .2s}.icon-button:hover{background:#ffffff26}.storage-warning{background:#fff3cd;color:#856404;padding:8px 15px;text-align:center;font-size:.85rem;border-top:1px solid #ffeaa7}.dark .storage-warning{background:#4a3c1a;color:#f1c40f;border-top:1px solid #6b5a2b}.modal-overlay{position:fixed;inset:0;background-color:#00000080;display:flex;align-items:center;justify-content:center;z-index:1000}.modal{background:var(--card-bg);border-radius:12px;padding:0;width:90%;max-width:500px;max-height:90vh;overflow-y:auto;box-shadow:0 10px 25px #0003}.modal-header{display:flex;justify-content:space-between;align-items:center;padding:20px;border-bottom:1px solid var(--border-color)}.modal-header h3{margin:0;color:var(--text-color)}.config-form{padding:20px}.form-group{margin-bottom:20px}.form-group label{display:block;margin-bottom:8px;font-weight:500;color:var(--text-color)}.form-group input,.form-group select{width:100%;padding:10px 12px;border:1px solid var(--border-color);border-radius:6px;background:var(--card-bg);color:var(--text-color);font-size:1rem}.form-group input:focus,.form-group select:focus{outline:none;border-color:var(--primary-color)}.help-text{font-size:.85rem;color:var(--text-light);margin-top:5px}.modal-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:20px}.primary-button{background:var(--primary-color);color:#fff;border:none;border-radius:6px;padding:10px 20px;cursor:pointer;font-weight:500;transition:background .2s}.primary-button:hover{background:var(--primary-dark)}.secondary-button{background:transparent;color:var(--text-color);border:1px solid var(--border-color);border-radius:6px;padding:10px 20px;cursor:pointer;font-weight:500;transition:background .2s}.secondary-button:hover{background:var(--ai-msg-bg)}@media (max-width: 768px){.chat-actions{gap:4px}.icon-button{padding:5px}.modal{width:95%;margin:10px}.modal-actions{flex-direction:column}.primary-button,.secondary-button{width:100%}}:root{font-family:system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#ffffffde;background-color:#242424;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{font-weight:500;color:#646cff;text-decoration:inherit}a:hover{color:#535bf2}body{margin:0;display:flex;place-items:center;min-width:320px;min-height:100vh}h1{font-size:3.2em;line-height:1.1}button{border-radius:8px;border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:#1a1a1a;cursor:pointer;transition:border-color .25s}button:hover{border-color:#646cff}button:focus,button:focus-visible{outline:4px auto -webkit-focus-ring-color}@media (prefers-color-scheme: light){:root{color:#213547;background-color:#fff}a:hover{color:#747bff}button{background-color:#f9f9f9}}