*,:before,:after{box-sizing:border-box;margin:0;padding:0}:root{--bg:#f5f5f7;--sidebar:#fff;--surface:#fff;--surface2:#f0f0f3;--surface3:#e8e8ed;--border:#e0e0e5;--text:#1a1a1e;--text2:#6e6e78;--accent:#6366f1;--accent-hover:#4f46e5;--accent-light:#eef0fe;--accent-rgb:99, 102, 241;--user-bubble:#6366f1;--danger:#ef4444;--success:#22c55e;--radius:12px;--shadow:0 1px 3px #00000014, 0 1px 2px #0000000d;--shadow-md:0 4px 12px #00000014;--font:-apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", sans-serif}[data-theme=dark]{--bg:#0f0f13;--sidebar:#16161d;--surface:#16161d;--surface2:#1e1e28;--surface3:#26263a;--border:#2a2a3a;--text:#e8e8f0;--text2:#88a;--accent-light:rgba(var(--accent-rgb), .12);--shadow:0 1px 3px #0000004d, 0 1px 2px #0003;--shadow-md:0 4px 12px #0006}[data-accent=indigo]{--accent:#6366f1;--accent-hover:#4f46e5;--accent-rgb:99,102,241;--user-bubble:#6366f1}[data-accent=violet]{--accent:#8b5cf6;--accent-hover:#7c3aed;--accent-rgb:139,92,246;--user-bubble:#8b5cf6}[data-accent=blue]{--accent:#3b82f6;--accent-hover:#2563eb;--accent-rgb:59,130,246;--user-bubble:#3b82f6}[data-accent=emerald]{--accent:#10b981;--accent-hover:#059669;--accent-rgb:16,185,129;--user-bubble:#10b981}[data-accent=rose]{--accent:#f43f5e;--accent-hover:#e11d48;--accent-rgb:244,63,94;--user-bubble:#f43f5e}[data-accent=amber]{--accent:#f59e0b;--accent-hover:#d97706;--accent-rgb:245,158,11;--user-bubble:#f59e0b}body{font-family:var(--font);background:var(--bg);color:var(--text);height:100dvh;overflow:hidden}#root{height:100dvh;display:flex}::-webkit-scrollbar{width:4px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:var(--border);border-radius:4px}.auth-page{background:var(--bg);flex:1;justify-content:center;align-items:center;display:flex}.auth-box{background:var(--surface);border:1px solid var(--border);width:380px;box-shadow:var(--shadow-md);border-radius:20px;padding:40px}.auth-logo{color:var(--accent);letter-spacing:-.5px;margin-bottom:4px;font-size:26px;font-weight:800}.auth-sub{color:var(--text2);margin-bottom:28px;font-size:14px}.auth-box h2{color:var(--text);margin-bottom:24px;font-size:22px;font-weight:700}.form-group{margin-bottom:16px}.form-group label{color:var(--text2);margin-bottom:6px;font-size:13px;font-weight:500;display:block}.form-group input,.form-group select,.form-group textarea{background:var(--surface2);border:1.5px solid var(--border);width:100%;color:var(--text);font-size:15px;font-family:var(--font);border-radius:10px;outline:none;padding:11px 14px;transition:border-color .2s,background .2s}.form-group input:focus,.form-group select:focus,.form-group textarea:focus{border-color:var(--accent);background:#fff}.form-group textarea{resize:vertical;min-height:100px}.btn{background:var(--accent);color:#fff;cursor:pointer;border:none;border-radius:10px;width:100%;padding:13px;font-size:15px;font-weight:600;transition:background .2s}.btn:hover:not(:disabled){background:var(--accent-hover)}.btn:disabled{opacity:.5;cursor:not-allowed}.error-msg{color:var(--danger);text-align:center;margin-top:10px;font-size:13px}.layout{width:100%;height:100dvh;display:flex}.sidebar{background:var(--sidebar);border-right:1px solid var(--border);flex-direction:column;width:260px;min-width:260px;height:100dvh;display:flex}.sidebar-header{border-bottom:1px solid var(--border);padding:16px 14px 12px}.logo{color:var(--accent);letter-spacing:-.5px;font-size:18px;font-weight:800}.new-chat-btn{background:var(--accent-light);width:100%;color:var(--accent);cursor:pointer;border:1.5px solid #0000;border-radius:10px;justify-content:center;align-items:center;gap:6px;margin-top:10px;padding:9px 14px;font-size:14px;font-weight:600;transition:all .2s;display:flex}.new-chat-btn:hover{background:var(--accent);color:#fff}.sidebar-section{color:var(--text2);text-transform:uppercase;letter-spacing:.6px;justify-content:space-between;align-items:center;padding:14px 14px 4px;font-size:11px;font-weight:600;display:flex}.sidebar-add-btn{color:var(--text2);cursor:pointer;background:0 0;border:none;border-radius:4px;padding:0 2px;font-size:18px;line-height:1}.sidebar-add-btn:hover{color:var(--accent)}.project-list{padding:2px 8px 4px}.project-item{cursor:pointer;color:var(--text2);border-radius:8px;align-items:center;gap:8px;padding:8px;font-size:13px;font-weight:500;transition:background .15s;display:flex}.project-item:hover{background:var(--surface2);color:var(--text)}.project-item.active{background:var(--accent-light);color:var(--accent)}.project-dot{border-radius:50%;flex-shrink:0;width:8px;height:8px}.project-name{text-overflow:ellipsis;white-space:nowrap;flex:1;overflow:hidden}.project-edit-btn{color:var(--text2);cursor:pointer;opacity:0;background:0 0;border:none;border-radius:4px;padding:2px 4px;font-size:13px}.project-item:hover .project-edit-btn{opacity:1}.project-edit-btn:hover{background:var(--surface3)}.conv-list{flex:1;padding:2px 8px 8px;overflow-y:auto}.conv-item{cursor:pointer;color:var(--text2);border-radius:8px;justify-content:space-between;align-items:center;gap:6px;padding:8px 10px;font-size:13px;transition:background .15s;display:flex}.conv-item:hover{background:var(--surface2);color:var(--text)}.conv-item.active{background:var(--accent-light);color:var(--accent);font-weight:500}.conv-title{text-overflow:ellipsis;white-space:nowrap;flex:1;overflow:hidden}.conv-delete{opacity:0;width:18px;height:18px;color:var(--text2);cursor:pointer;background:0 0;border:none;border-radius:4px;flex-shrink:0;justify-content:center;align-items:center;font-size:15px;display:flex}.conv-item:hover .conv-delete{opacity:1}.conv-delete:hover{color:var(--danger);background:#fee2e2}.main{background:var(--bg);flex-direction:column;flex:1;height:100dvh;display:flex;overflow:hidden}.chat-header{border-bottom:1px solid var(--border);background:var(--surface);box-shadow:var(--shadow);align-items:center;gap:10px;padding:14px 20px;display:flex}.chat-title{color:var(--text);flex:1;font-size:15px;font-weight:600}.chat-model{color:var(--text2);background:var(--surface2);border-radius:20px;padding:3px 10px;font-size:12px;font-weight:500}.messages{flex-direction:column;flex:1;gap:16px;padding:24px 20px;display:flex;overflow-y:auto}.message{gap:10px;width:100%;max-width:820px;display:flex}.message.user{flex-direction:row-reverse;align-self:flex-end}.message.assistant{align-self:flex-start}.msg-avatar{border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:30px;height:30px;font-size:13px;font-weight:700;display:flex}.message.user .msg-avatar{background:var(--accent);color:#fff}.message.assistant .msg-avatar{background:var(--surface3);color:var(--text);border:1px solid var(--border)}.msg-content{flex:1}.msg-bubble{border-radius:var(--radius);padding:11px 15px;font-size:14.5px;line-height:1.65}.message.user .msg-bubble{background:var(--user-bubble);color:#fff;border-bottom-right-radius:4px}.message.assistant .msg-bubble{background:var(--surface);border:1px solid var(--border);box-shadow:var(--shadow);color:var(--text);border-bottom-left-radius:4px}.msg-bubble p{margin-bottom:8px}.msg-bubble p:last-child{margin-bottom:0}.msg-bubble h1,.msg-bubble h2,.msg-bubble h3{margin:14px 0 6px;font-weight:700}.msg-bubble h1{font-size:19px}.msg-bubble h2{font-size:16px}.msg-bubble h3{font-size:14px}.msg-bubble ul,.msg-bubble ol{margin-bottom:8px;padding-left:20px}.msg-bubble li{margin-bottom:3px}.message.assistant .msg-bubble code{background:var(--surface2);color:#d63384;border-radius:4px;padding:1px 5px;font-family:JetBrains Mono,Fira Code,monospace;font-size:13px}.message.user .msg-bubble code{color:#fff;background:#fff3;border-radius:4px;padding:1px 5px;font-size:13px}.msg-bubble pre{border-radius:10px;margin:10px 0;overflow:hidden}.code-block-wrapper{border:1px solid var(--border);border-radius:10px;overflow:hidden}.code-header{border-bottom:1px solid var(--border);color:var(--text2);background:#f8f8fa;justify-content:space-between;align-items:center;padding:7px 14px;font-size:12px;display:flex}.copy-btn{border:1px solid var(--border);color:var(--text2);cursor:pointer;background:0 0;border-radius:4px;padding:2px 8px;font-size:12px}.copy-btn:hover{background:var(--accent-light);color:var(--accent);border-color:var(--accent)}.msg-bubble table{border-collapse:collapse;width:100%;margin:10px 0;font-size:13px}.msg-bubble th,.msg-bubble td{border:1px solid var(--border);text-align:left;padding:7px 11px}.msg-bubble th{background:var(--surface2);font-weight:600}.msg-bubble blockquote{border-left:3px solid var(--accent);color:var(--text2);margin:8px 0;padding-left:12px}.message.assistant .msg-bubble a{color:var(--accent)}.message.user .msg-bubble a{color:#ffffffd9}.msg-bubble hr{border:none;border-top:1px solid var(--border);margin:14px 0}.typing-indicator{align-items:center;gap:4px;padding:4px 0;display:flex}.typing-dot{background:var(--text2);border-radius:50%;width:6px;height:6px;animation:1.2s ease-in-out infinite typing}.typing-dot:nth-child(2){animation-delay:.2s}.typing-dot:nth-child(3){animation-delay:.4s}@keyframes typing{0%,60%,to{opacity:.4;transform:translateY(0)}30%{opacity:1;transform:translateY(-5px)}}.input-area{background:var(--surface);border-top:1px solid var(--border);padding:14px 20px 18px}.input-wrapper{background:var(--surface2);border:1.5px solid var(--border);border-radius:16px;align-items:flex-end;gap:10px;padding:10px 12px;transition:border-color .2s,box-shadow .2s;display:flex}.input-wrapper:focus-within{border-color:var(--accent);background:#fff;box-shadow:0 0 0 3px #6366f11a}.input-wrapper textarea{color:var(--text);resize:none;min-height:24px;max-height:200px;font-size:15px;line-height:1.5;font-family:var(--font);background:0 0;border:none;outline:none;flex:1}.input-wrapper 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var(--border);width:500px;max-width:95vw;box-shadow:var(--shadow-md);border-radius:20px;padding:28px}.modal h3{color:var(--text);margin-bottom:20px;font-size:18px;font-weight:700}.modal-footer{justify-content:flex-end;gap:10px;margin-top:24px;display:flex}.btn-ghost{border:1.5px solid var(--border);color:var(--text2);cursor:pointer;background:0 0;border-radius:10px;padding:10px 18px;font-size:14px;font-weight:500}.btn-ghost:hover{background:var(--surface2)}.btn-primary{background:var(--accent);color:#fff;cursor:pointer;border:none;border-radius:10px;padding:10px 18px;font-size:14px;font-weight:600}.btn-primary:hover{background:var(--accent-hover)}.message:hover .msg-actions{opacity:1!important}.msg-actions button:hover{background:var(--surface2)!important;color:var(--text)!important;border-color:var(--accent)!important}.sidebar.collapsed{padding:0;transition:width .2s;overflow:hidden;width:48px!important;min-width:48px!important}.sidebar{transition:width .2s}.sidebar.collapsed .sidebar-header,.sidebar.collapsed .sidebar-search,.sidebar.collapsed .sidebar-group-label,.sidebar.collapsed .conv-list,.sidebar.collapsed .new-chat-btn,.sidebar.collapsed .sidebar-footer,.sidebar.collapsed .footer-actions{display:none!important}.sidebar.collapsed .projects-collapsed{flex-direction:column;align-items:center;gap:6px;margin-top:4px;padding:8px 0;display:flex}.sidebar:not(.collapsed) .projects-collapsed{display:none}.sidebar.collapsed .project-icon-btn{color:#fff;cursor:pointer;border:none;border-radius:8px;flex-shrink:0;justify-content:center;align-items:center;width:32px;height:32px;font-size:13px;font-weight:700;display:flex}.sidebar-toggle{background:var(--surface);border:1px solid var(--border);cursor:pointer;width:22px;height:56px;color:var(--text2);z-index:10;border-left:none;border-radius:0 8px 8px 0;justify-content:center;align-items:center;font-size:12px;transition:background 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12px}.sidebar-search:focus{border-color:var(--accent)}.welcome-chips{flex-wrap:wrap;justify-content:center;gap:8px;max-width:600px;margin-top:24px;display:flex}.welcome-chip{background:var(--surface);border:1px solid var(--border);cursor:pointer;color:var(--text);text-align:left;border-radius:12px;max-width:280px;padding:10px 14px;font-size:13px;transition:all .15s}.welcome-chip:hover{border-color:var(--accent);background:var(--accent-light)}.welcome-chip-icon{margin-bottom:4px;font-size:18px;display:block}.stop-btn{background:var(--danger);color:#fff;cursor:pointer;border:none;border-radius:10px;flex-shrink:0;justify-content:center;align-items:center;width:36px;height:36px;transition:background .2s,transform .1s;display:flex}.stop-btn:hover{background:#dc2626;transform:scale(1.05)}.conv-item input.conv-rename{border:1.5px solid var(--accent);width:100%;color:var(--text);background:#fff;border-radius:6px;outline:none;padding:4px 8px;font-size:13px}.mobile-menu-btn{display:none}@media (width>=769px) and (width<=1024px){.sidebar{width:240px;min-width:240px}}.layout.with-artifact .main{width:50%;max-width:50%}.artifact-panel{background:var(--surface);border-left:1px solid var(--border);flex-direction:column;width:50%;min-width:0;height:100dvh;display:flex}.artifact-header{border-bottom:1px solid var(--border);background:var(--sidebar);align-items:flex-start;gap:10px;padding:12px 14px;display:flex}.artifact-content{background:var(--surface);flex:1;min-height:0;overflow:auto}.artifact-content>div{height:100%}.artifact-footer{border-top:1px solid var(--border);background:var(--sidebar);justify-content:flex-end;gap:6px;padding:8px 12px;display:flex}.artifact-action-btn{background:var(--surface2);border:1px solid var(--border);cursor:pointer;color:var(--text);border-radius:6px;padding:5px 11px;font-size:12px}.artifact-action-btn:hover{background:var(--accent-light);color:var(--accent);border-color:var(--accent)}.artifact-chip{background:var(--surface2);border:1px solid var(--border);cursor:pointer;border-radius:10px;align-items:center;gap:8px;max-width:100%;margin:6px 0;padding:8px 12px;font-size:13px;transition:all .15s;display:inline-flex}.artifact-chip:hover{border-color:var(--accent);background:var(--accent-light)}.artifact-chip-icon{flex-shrink:0;font-size:18px}.artifact-chip-title{text-overflow:ellipsis;white-space:nowrap;font-weight:600;overflow:hidden}.artifact-chip-meta{color:var(--text2);font-size:11px}@media (width<=900px){.layout.with-artifact .main{display:none}.artifact-panel{border-left:none;width:100%}}.sidebar-footer{border-top:1px solid var(--border);flex-direction:column;gap:8px;padding:10px 12px;display:flex}.user-info{align-items:center;gap:10px;padding:4px 4px 0;display:flex}.user-avatar{background:var(--accent);color:#fff;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:32px;height:32px;font-size:13px;font-weight:600;display:flex}.user-name{color:var(--text);text-overflow:ellipsis;white-space:nowrap;flex:1;font-size:13px;font-weight:500;overflow:hidden}.footer-actions{background:var(--surface2);border-radius:10px;justify-content:space-between;gap:4px;padding:6px;display:flex}.footer-btn{cursor:pointer;min-width:0;color:var(--text2);background:0 0;border:none;border-radius:8px;flex:1;justify-content:center;align-items:center;padding:8px 6px;font-size:16px;transition:all .15s;display:flex;position:relative}.footer-btn:hover{background:var(--surface);color:var(--accent)}.footer-btn.danger:hover{color:var(--danger);background:#fee2e2}.footer-btn-badge{color:#fff;text-align:center;background:#dc2626;border-radius:8px;min-width:14px;padding:1px 5px;font-size:9px;font-weight:700;line-height:12px;position:absolute;top:2px;right:2px}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.user-msg .msg-bubble:hover:after{content:"✎";color:#fff6;pointer-events:none;font-size:12px;position:absolute;top:6px;right:8px}@media (width<=768px){.app{flex-direction:column}.sidebar{z-index:100;box-shadow:none;transition:transform .25s cubic-bezier(.4,0,.2,1);position:fixed;top:0;bottom:0;left:0;transform:translate(-100%);width:290px!important;min-width:290px!important}.sidebar.mobile-open{transform:translate(0);box-shadow:4px 0 24px #00000040}.sidebar.collapsed{transform:translate(-100%);width:290px!important}.sidebar-toggle{display:none}.main{width:100%;overflow:hidden}.chat-header{min-height:52px;padding:10px 14px}.chat-title{font-size:14px}.input-area{padding:8px 10px 12px}.input-wrapper{border-radius:18px}.input-wrapper textarea{max-height:180px;padding:10px 12px;font-size:16px!important}.messages{padding:10px 10px 16px}.message{gap:8px;margin-bottom:14px}.msg-avatar{flex-shrink:0;width:28px;height:28px;font-size:14px}.msg-bubble{border-radius:16px;padding:10px 14px;font-size:14px}.user .msg-bubble{border-radius:18px 4px 18px 18px}.assistant .msg-bubble{border-radius:4px 18px 18px}.code-block-wrapper{margin:8px 0;font-size:12px}.code-header{padding:6px 10px;font-size:11px}.artifact-panel{z-index:200;border-radius:0;width:100%!important;position:fixed!important;inset:0!important}.msg-actions{gap:4px}.msg-action-btn{padding:4px 8px;font-size:12px}.quick-actions{gap:6px;padding:0 10px}.quick-action-btn{border-radius:10px;padding:8px 10px;font-size:12px}.quick-action-btn span:first-child{font-size:18px}.mobile-sidebar-overlay{z-index:99;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);background:#0006;position:fixed;inset:0;display:block!important}.modal-overlay{align-items:flex-end;padding:0}.modal-content{border-radius:20px 20px 0 0;width:100%;max-height:90vh}.hide-mobile{display:none!important}.settings-tabs{-webkit-overflow-scrolling:touch;overflow-x:auto}.settings-tab-btn{white-space:nowrap;padding:8px 10px;font-size:12px}.input-wrapper button{min-width:36px;min-height:36px}@media (hover:none){.conv-item:hover{background:0 0}.msg-actions{opacity:1}}}@media (width<=380px){.chat-header{padding:8px 10px}.messages{padding:8px 8px 12px}.msg-bubble{padding:8px 12px;font-size:13px}.quick-action-btn span:last-child{display:none}}@media (width<=390px){.msg-bubble{font-size:13px!important}.chat-header{padding:8px 10px}}@supports (padding-bottom:env(safe-area-inset-bottom)){.input-area{padding-bottom:max(12px, env(safe-area-inset-bottom))!important}.sidebar{padding-bottom:env(safe-area-inset-bottom)}}@media (hover:none){.conv-item:hover{background:0 0!important}.conv-delete{opacity:1!important}}.modal .tabs-scroll::-webkit-scrollbar{display:none}