:root{--font-heading: "Outfit", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-body: "Plus Jakarta Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-mono: "Fira Code", Consolas, Monaco, "Andale Mono", monospace;--bg-primary: #0a0e17;--bg-secondary: #101524;--bg-tertiary: #161e33;--border-color: #1f2a45;--border-hover: #32446e;--text-primary: #f3f4f6;--text-secondary: #a1a8b9;--text-muted: #626d85;--accent-primary: #3b82f6;--accent-secondary: #6366f1;--accent-success: #10b981;--accent-danger: #f43f5e;--gradient-accent: linear-gradient(135deg, #3b82f6 0%, #6366f1 100%);--gradient-ai: linear-gradient(135deg, #10b981 0%, #3b82f6 100%);--gradient-glass: linear-gradient(135deg, rgba(16, 21, 36, .7) 0%, rgba(22, 30, 51, .7) 100%);--shadow-sm: 0 2px 8px rgba(0, 0, 0, .2);--shadow-md: 0 8px 30px rgba(0, 0, 0, .35);--shadow-lg: 0 15px 40px rgba(0, 0, 0, .5);--transition-fast: .15s ease;--transition-normal: .25s cubic-bezier(.4, 0, .2, 1)}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-primary);color:var(--text-primary);font-family:var(--font-body);font-size:15px;line-height:1.6;height:100vh;overflow:hidden;-webkit-font-smoothing:antialiased}#root{height:100vh;display:flex}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:var(--bg-primary)}::-webkit-scrollbar-thumb{background:var(--border-color);border-radius:999px}::-webkit-scrollbar-thumb:hover{background:var(--border-hover)}.app-container{display:flex;width:100vw;height:100vh;background-color:var(--bg-primary);position:relative}.sidebar{width:280px;background-color:var(--bg-secondary);border-right:1px solid var(--border-color);display:flex;flex-direction:column;height:100%;transition:transform var(--transition-normal);z-index:10}.sidebar-header{padding:24px 20px;border-bottom:1px solid rgba(31,42,69,.5)}.app-logo{display:flex;align-items:center;gap:12px;font-family:var(--font-heading);font-weight:700;font-size:1.35rem;background:var(--gradient-accent);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.new-chat-btn{width:100%;padding:14px;background:var(--gradient-accent);border:none;border-radius:12px;color:#fff;font-family:var(--font-heading);font-weight:600;font-size:.95rem;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:8px;transition:all var(--transition-fast);box-shadow:0 4px 15px #3b82f640;margin-top:20px}.new-chat-btn:hover{opacity:.95;transform:translateY(-1px);box-shadow:0 6px 20px #3b82f659}.new-chat-btn:active{transform:translateY(0)}.sidebar-content{flex:1;overflow-y:auto;padding:15px 12px}.conversation-list{display:flex;flex-direction:column;gap:6px}.conversation-item{display:flex;align-items:center;justify-content:space-between;padding:12px 14px;border-radius:10px;cursor:pointer;transition:all var(--transition-fast);color:var(--text-secondary);border:1px solid transparent}.conversation-item:hover{background-color:#ffffff0a;color:var(--text-primary)}.conversation-item.active{background-color:#3b82f61a;color:var(--text-primary);border-color:#3b82f640;position:relative}.conversation-item.active:before{content:"";position:absolute;left:0;top:15%;height:70%;width:3px;background:var(--gradient-accent);border-radius:0 4px 4px 0}.conversation-title-container{display:flex;align-items:center;gap:12px;flex:1;min-width:0}.conversation-title{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-size:.9rem}.delete-conv-btn{background:transparent;border:none;color:var(--text-muted);cursor:pointer;padding:6px;border-radius:6px;display:flex;align-items:center;justify-content:center;opacity:0;transition:all var(--transition-fast)}.conversation-item:hover .delete-conv-btn{opacity:1}.delete-conv-btn:hover{color:var(--accent-danger);background-color:#f43f5e1a}.sidebar-footer{padding:20px;border-top:1px solid rgba(31,42,69,.5);font-size:.8rem;color:var(--text-muted);display:flex;flex-direction:column;gap:12px}.logout-btn{background:transparent;border:1px solid var(--border-color);color:var(--text-secondary);padding:10px;border-radius:8px;cursor:pointer;font-size:.8rem;transition:all var(--transition-fast);font-weight:500}.logout-btn:hover{background-color:var(--bg-tertiary);color:var(--text-primary);border-color:var(--border-hover)}.chat-area{flex:1;display:flex;flex-direction:column;height:100%;position:relative;background-color:var(--bg-primary)}.chat-header{height:70px;border-bottom:1px solid var(--border-color);display:flex;align-items:center;justify-content:space-between;padding:0 30px;background-color:#0a0e17b3;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);z-index:5}.chat-header-title{font-family:var(--font-heading);font-size:1.15rem;font-weight:600;color:var(--text-primary)}.chat-messages-container{flex:1;overflow-y:auto;padding:40px 0;display:flex;flex-direction:column}.messages-list{max-width:850px;width:100%;margin:0 auto;padding:0 24px;display:flex;flex-direction:column;gap:28px}.message-row{display:flex;gap:18px;width:100%;animation:fadeInUp .4s cubic-bezier(.16,1,.3,1) both}@keyframes fadeInUp{0%{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}.avatar{width:38px;height:38px;border-radius:10px;display:flex;align-items:center;justify-content:center;font-weight:700;font-family:var(--font-heading);font-size:.9rem;flex-shrink:0;box-shadow:var(--shadow-sm);border:1px solid rgba(255,255,255,.08)}.message-row.user{flex-direction:row-reverse;align-self:flex-end;max-width:80%}.message-row.user .avatar{background:var(--gradient-accent);color:#fff}.message-row.user .message-body{background:linear-gradient(135deg,#3b82f61f,#6366f11f);border:1px solid rgba(99,102,241,.25);border-radius:18px 4px 18px 18px;padding:14px 20px;box-shadow:var(--shadow-sm)}.message-row.user .message-sender{text-align:right;color:var(--accent-primary)}.message-row.assistant{align-self:flex-start;max-width:90%}.message-row.assistant .avatar{background:var(--gradient-ai);color:#fff}.message-row.assistant .message-body{background-color:#161e3373;border:1px solid rgba(255,255,255,.04);border-radius:4px 18px 18px;padding:18px 24px;box-shadow:var(--shadow-sm)}.message-body{flex:1;min-width:0}.message-sender{font-family:var(--font-heading);font-weight:600;font-size:.9rem;margin-bottom:8px;color:var(--text-secondary)}.message-content{font-family:var(--font-body);font-size:.98rem;line-height:1.75;color:#e2e8f0}.message-content h1,.message-content h2,.message-content h3,.message-content h4{font-family:var(--font-heading);color:#fff;font-weight:600;margin-top:24px;margin-bottom:12px}.message-content h1{font-size:1.6rem;border-bottom:1px solid var(--border-color);padding-bottom:8px}.message-content h2{font-size:1.3rem;margin-top:20px}.message-content h3{font-size:1.15rem}.message-content p{margin-bottom:14px}.message-content p:last-child{margin-bottom:0}.message-content ul,.message-content ol{margin-left:24px;margin-bottom:16px}.message-content li{margin-bottom:8px}.message-content li::marker{color:var(--accent-primary)}.message-content strong{color:#fff;font-weight:600}.message-content table{width:100%;border-collapse:collapse;margin:16px 0;border:1px solid var(--border-color);border-radius:8px;overflow:hidden}.message-content th,.message-content td{padding:10px 14px;text-align:left;border-bottom:1px solid var(--border-color)}.message-content th{background-color:var(--bg-tertiary);color:#fff;font-weight:600;font-size:.9rem}.message-content tr:last-child td{border-bottom:none}.message-content tr:nth-child(2n){background-color:#ffffff05}.message-content code{background-color:var(--bg-secondary);padding:3px 6px;border-radius:6px;font-family:var(--font-mono);font-size:.85em;color:#f43f5e;border:1px solid var(--border-color)}.message-content pre{margin:18px 0;border-radius:12px;overflow:hidden;border:1px solid var(--border-color);background-color:#0d1117;font-family:var(--font-mono)}.code-header{display:flex;justify-content:space-between;align-items:center;padding:10px 16px;background-color:#161b22;font-size:.75rem;color:var(--text-muted);border-bottom:1px solid var(--border-color)}.copy-btn{background:transparent;border:1px solid var(--border-color);color:var(--text-secondary);padding:4px 10px;border-radius:6px;cursor:pointer;font-size:.75rem;transition:all var(--transition-fast)}.copy-btn:hover{background-color:var(--bg-tertiary);color:var(--text-primary);border-color:var(--border-hover)}.message-content pre code{display:block;padding:18px;overflow-x:auto;font-size:.85rem;color:#c9d1d9;background:transparent;border:none}.hljs-keyword{color:#ff7b72}.hljs-string{color:#a5d6ff}.hljs-comment{color:#8b949e;font-style:italic}.hljs-number{color:#79c0ff}.hljs-function,.hljs-title{color:#d2a8ff}.hljs-params{color:#c9d1d9}.hljs-built_in{color:#ffa657}.welcome-container{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;max-width:600px;margin:0 auto;padding:20px;text-align:center}.welcome-icon{font-size:3.5rem;margin-bottom:20px;animation:pulse 2s infinite ease-in-out}@keyframes 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auto;background-color:#161e33a6;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border:1px solid rgba(255,255,255,.08);border-radius:16px;padding:10px 14px;display:flex;flex-direction:column;transition:all var(--transition-fast);box-shadow:var(--shadow-md)}.input-box-wrapper:focus-within{border-color:#6366f166;box-shadow:0 0 0 2px #6366f126,var(--shadow-lg);background-color:#161e33d9}.chat-textarea{width:100%;background:transparent;border:none;resize:none;outline:none;color:var(--text-primary);font-family:var(--font-body);font-size:.95rem;min-height:24px;max-height:200px;padding:6px;line-height:1.5}.input-controls{display:flex;justify-content:space-between;align-items:center;border-top:1px solid rgba(255,255,255,.05);margin-top:8px;padding-top:8px}.input-tips{font-size:.75rem;color:var(--text-muted)}.send-btn{background:var(--gradient-accent);color:#fff;border:none;width:32px;height:32px;border-radius:8px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all var(--transition-fast)}.send-btn:hover{transform:scale(1.05);box-shadow:0 2px 8px #3b82f64d}.send-btn:active{transform:scale(.95)}.send-btn:disabled{background:var(--bg-tertiary);color:var(--text-muted);cursor:not-allowed;transform:none;box-shadow:none}.typing-indicator{display:flex;gap:5px;align-items:center;height:24px;padding-left:5px}.typing-dot{width:6px;height:6px;background-color:var(--accent-primary);border-radius:50%;animation:typing 1.4s infinite both}.typing-dot:nth-child(2){animation-delay:.2s}.typing-dot:nth-child(3){animation-delay:.4s}@keyframes typing{0%,80%,to{transform:scale(.6);opacity:.4}45%{transform:scale(1);opacity:1}}.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background-color:#05070ce6;display:flex;align-items:center;justify-content:center;z-index:100;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.modal-content{background-color:var(--bg-secondary);border:1px solid var(--border-color);padding:40px;border-radius:16px;width:100%;max-width:400px;text-align:center;box-shadow:var(--shadow-lg);animation:modalEnter .3s cubic-bezier(.34,1.56,.64,1)}@keyframes modalEnter{0%{transform:scale(.9);opacity:0}to{transform:scale(1);opacity:1}}.modal-title{font-family:var(--font-heading);font-size:1.5rem;font-weight:700;margin-bottom:10px}.modal-subtitle{color:var(--text-secondary);font-size:.85rem;margin-bottom:25px}.password-input{width:100%;padding:12px 16px;background-color:var(--bg-primary);border:1px solid var(--border-color);border-radius:8px;color:var(--text-primary);font-family:var(--font-body);font-size:.95rem;outline:none;margin-bottom:15px;transition:border-color var(--transition-fast)}.password-input:focus{border-color:var(--accent-primary)}.login-btn{width:100%;padding:12px;background:var(--gradient-accent);border:none;border-radius:8px;color:#fff;font-family:var(--font-heading);font-weight:600;cursor:pointer;transition:opacity var(--transition-fast)}.login-btn:hover{opacity:.9}.error-text{color:var(--accent-danger);font-size:.8rem;margin-top:10px;display:block}.sidebar-toggle-btn{display:none;background:transparent;border:none;color:var(--text-primary);font-size:1.5rem;cursor:pointer}.artifacts-panel{width:50%;height:100%;background-color:var(--bg-secondary);border-left:1px solid var(--border-color);display:flex;flex-direction:column;animation:slideInRight .3s cubic-bezier(.16,1,.3,1);overflow:hidden}@keyframes slideInRight{0%{transform:translate(100%)}to{transform:translate(0)}}.artifacts-header{height:70px;padding:0 20px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--border-color);background-color:var(--bg-tertiary)}.artifacts-title-container{display:flex;align-items:center;gap:10px}.artifacts-title{font-family:var(--font-heading);font-weight:600;font-size:1.05rem;color:var(--text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.artifacts-close-btn{background:transparent;border:none;color:var(--text-secondary);font-size:1.2rem;cursor:pointer;padding:4px 8px;border-radius:6px;transition:all var(--transition-fast)}.artifacts-close-btn:hover{color:var(--accent-danger);background-color:#ef44441a}.artifacts-tabs{display:flex;background-color:var(--bg-tertiary);padding:0 10px;border-bottom:1px solid var(--border-color)}.artifacts-tab-btn{background:transparent;border:none;color:var(--text-secondary);padding:12px 18px;cursor:pointer;font-family:var(--font-heading);font-weight:500;font-size:.9rem;position:relative;transition:color var(--transition-fast)}.artifacts-tab-btn:hover{color:var(--text-primary)}.artifacts-tab-btn.active{color:var(--accent-primary)}.artifacts-tab-btn.active:after{content:"";position:absolute;bottom:0;left:0;right:0;height:2px;background:var(--gradient-accent)}.artifacts-content{flex:1;overflow:hidden;background-color:var(--bg-primary);position:relative;display:flex;flex-direction:column}.artifacts-iframe{width:100%;height:100%;border:none;background-color:#fff}.artifacts-code-container{width:100%;height:100%;overflow:auto;position:relative}.artifacts-copy-btn{position:absolute;top:15px;right:15px;background-color:#111622d9;border:1px solid var(--border-color);color:var(--text-secondary);padding:6px 12px;border-radius:6px;font-size:.8rem;cursor:pointer;z-index:5;transition:all var(--transition-fast)}.artifacts-copy-btn:hover{color:var(--text-primary);border-color:var(--accent-primary)}.artifacts-code-container pre{margin:0;padding:20px;background-color:#0d1117;min-height:100%;font-family:var(--font-mono)}.artifacts-code-container code{font-size:.85rem;line-height:1.6;color:#c9d1d9}.artifact-open-btn{display:inline-flex;align-items:center;gap:6px;background-color:#3b82f61a;border:1px solid rgba(59,130,246,.3);color:var(--accent-primary);padding:4px 10px;border-radius:6px;font-size:.75rem;cursor:pointer;transition:all var(--transition-fast);margin-left:10px}.artifact-open-btn:hover{background-color:#3b82f633;border-color:var(--accent-primary);transform:translateY(-1px)}.code-header-actions{display:flex;align-items:center}@media (max-width: 1024px){.artifacts-panel{position:fixed;top:70px;right:0;bottom:0;width:80%;z-index:50;box-shadow:var(--shadow-lg)}}@media (max-width: 768px){.sidebar{position:absolute;left:0;top:0;bottom:0;transform:translate(-100%)}.sidebar.open{transform:translate(0)}.sidebar-toggle-btn{display:block}}