:root{--bg: #0a0a0a;--bg-secondary: #141414;--bg-tertiary: #1a1a1a;--surface: #1e1e1e;--border: #2a2a2a;--text: #e8e8e8;--text-secondary: #888;--text-dim: #555;--accent: #6366f1;--accent-hover: #818cf8;--user-bg: #1a1a2e;--error: #ef4444;--success: #22c55e;--font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--mono: "JetBrains Mono", "SF Mono", "Fira Code", "Cascadia Code", monospace}*{margin:0;padding:0;box-sizing:border-box}html,body{height:100%;background:var(--bg);color:var(--text);font-family:var(--font);font-size:15px;line-height:1.6;-webkit-font-smoothing:antialiased;overflow:hidden}#root{height:100%}.login-container{height:100%;display:flex;align-items:center;justify-content:center;padding:20px}.login-card{width:100%;max-width:380px;text-align:center}.login-title{font-family:"Instrument Serif",Georgia,serif;font-size:48px;font-weight:400;margin-bottom:4px;letter-spacing:-.02em}.login-subtitle{color:var(--text-secondary);margin-bottom:32px;font-size:14px}.login-tabs{display:flex;gap:0;margin-bottom:24px;border:1px solid var(--border);border-radius:8px;overflow:hidden}.login-tab{flex:1;padding:10px;background:transparent;border:none;color:var(--text-secondary);font-size:14px;cursor:pointer;transition:all .15s}.login-tab.active{background:var(--surface);color:var(--text)}.login-form{display:flex;flex-direction:column;gap:12px}.login-input{width:100%;padding:12px 16px;background:var(--bg-secondary);border:1px solid var(--border);border-radius:8px;color:var(--text);font-family:var(--mono);font-size:14px;outline:none;transition:border-color .15s}.login-input:focus{border-color:var(--accent)}.login-button{padding:12px;background:var(--accent);border:none;border-radius:8px;color:#fff;font-size:15px;font-weight:500;cursor:pointer;transition:background .15s}.login-button:hover:not(:disabled){background:var(--accent-hover)}.login-button:disabled{opacity:.5;cursor:default}.login-error{color:var(--error);font-size:13px;margin-top:8px}.device-code-display{text-align:center}.device-code-display p{color:var(--text-secondary);font-size:14px}.device-url{color:var(--accent);text-decoration:none;font-size:14px}.device-code{font-family:var(--mono);font-size:32px;font-weight:600;letter-spacing:.15em;padding:16px;margin:12px 0;background:var(--bg-secondary);border-radius:8px}.device-waiting{color:var(--text-dim);font-size:13px}.chat-container{height:100%;display:flex;flex-direction:column}.chat-header{display:flex;justify-content:space-between;align-items:center;padding:12px 16px;border-bottom:1px solid var(--border);background:var(--bg);flex-shrink:0}.header-left{display:flex;align-items:center;gap:8px}.header-title{font-family:"Instrument Serif",Georgia,serif;font-size:22px;font-weight:400}.header-right{display:flex;gap:8px}.header-btn{width:32px;height:32px;border-radius:6px;border:1px solid var(--border);background:transparent;color:var(--text);font-size:18px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .15s}.header-btn:hover{background:var(--surface)}.header-btn-secondary{color:var(--text-secondary)}.status-dot{width:8px;height:8px;border-radius:50%;flex-shrink:0}.status-ok{background:var(--success)}.status-error{background:var(--error)}.status-pending{background:#f59e0b;animation:pulse 1.5s infinite}.status-text{font-size:12px;color:var(--text-dim)}.messages-container{flex:1;overflow-y:auto;padding:16px;-webkit-overflow-scrolling:touch}.empty-state{height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:40px 20px}.empty-title{font-size:20px;font-weight:500;margin-bottom:8px}.empty-subtitle{color:var(--text-secondary);font-size:14px;max-width:300px}.message-list{display:flex;flex-direction:column;gap:12px}.message{max-width:100%;animation:fadeIn .15s ease}.message-user{align-self:flex-end}.message-user .message-content{background:var(--user-bg);border:1px solid #2a2a4e;border-radius:12px 12px 4px;padding:10px 14px;white-space:pre-wrap;word-break:break-word}.message-assistant .message-content{padding:8px 0;word-break:break-word}.message-assistant .message-content p{margin-bottom:8px}.message-assistant .message-content p:last-child{margin-bottom:0}.message-assistant .message-content h1,.message-assistant .message-content h2,.message-assistant .message-content h3{margin:16px 0 8px;font-size:16px}.message-assistant .message-content ul,.message-assistant .message-content ol{padding-left:20px;margin-bottom:8px}.message-status{display:flex;align-items:center;gap:8px;color:var(--text-secondary);font-size:13px;padding:6px 0}.message-error{color:var(--error);font-size:13px;padding:8px 12px;background:#ef44441a;border-radius:8px}.tool-card,.tool-result-card{background:var(--bg-secondary);border:1px solid var(--border);border-radius:8px;overflow:hidden;cursor:pointer;font-size:13px}.tool-header,.tool-result-header{display:flex;align-items:center;gap:8px;padding:8px 12px}.tool-icon{color:var(--accent);font-size:14px}.tool-result-icon{color:var(--success);font-size:14px}.tool-name{font-family:var(--mono);font-size:13px;color:var(--text);flex:1}.tool-expand{color:var(--text-dim);font-size:10px}.tool-args,.tool-result-content{font-family:var(--mono);font-size:12px;line-height:1.5;padding:8px 12px;margin:0;background:var(--bg);color:var(--text-secondary);white-space:pre-wrap;word-break:break-all;max-height:300px;overflow-y:auto}.tool-result-content.truncated{max-height:80px;overflow:hidden}.code-block{background:var(--bg-secondary);border:1px solid var(--border);border-radius:6px;padding:12px;margin:8px 0;overflow-x:auto;font-family:var(--mono);font-size:13px;line-height:1.5}.code-block code{font-family:inherit}.inline-code{background:var(--bg-tertiary);padding:2px 6px;border-radius:4px;font-family:var(--mono);font-size:13px}.input-container{display:flex;gap:8px;padding:12px 16px;border-top:1px solid var(--border);background:var(--bg);flex-shrink:0;padding-bottom:max(12px,env(safe-area-inset-bottom))}.input-field{flex:1;padding:10px 14px;background:var(--bg-secondary);border:1px solid var(--border);border-radius:10px;color:var(--text);font-family:var(--font);font-size:15px;line-height:1.4;outline:none;resize:none;min-height:42px;max-height:120px;transition:border-color .15s}.input-field:focus{border-color:var(--accent)}.input-field::placeholder{color:var(--text-dim)}.input-field:disabled{opacity:.5}.send-btn{padding:0 18px;height:42px;background:var(--accent);border:none;border-radius:10px;color:#fff;font-size:14px;font-weight:500;cursor:pointer;flex-shrink:0;transition:background .15s}.send-btn:hover:not(:disabled){background:var(--accent-hover)}.send-btn:disabled{opacity:.4;cursor:default}.cancel-btn{background:var(--error)}.cancel-btn:hover{background:#dc2626}@keyframes fadeIn{0%{opacity:0;transform:translateY(4px)}to{opacity:1;transform:translateY(0)}}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}.cursor-blink{display:inline-block;width:2px;height:1em;background:var(--accent);margin-left:2px;vertical-align:text-bottom;animation:blink 1s step-end infinite}@keyframes blink{0%,to{opacity:1}50%{opacity:0}}.status-spinner{width:14px;height:14px;border:2px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:spin .8s linear infinite;flex-shrink:0}@keyframes spin{to{transform:rotate(360deg)}}@media(min-width:768px){.messages-container{padding:24px 48px}.input-container{padding:16px 48px}.message-user .message-content{max-width:70%}}@media(min-width:1024px){.messages-container{padding:24px 15%}.input-container{padding:16px 15%}}