:root{--bg: #ffffff;--sidebar-bg: #f9f9f9;--sidebar-border: #e5e5e5;--text: #0d0d0d;--text-muted: #6e6e80;--text-faint: #8e8ea0;--user-bubble: #f4f4f4;--accent: #0d0d0d;--accent-hover: #2a2a2a;--chip-bg: #f7f7f8;--chip-border: #e5e5e5;--link: #2964aa;--error-bg: #fdf1f1;--error-border: #f3c9c9;--error-text: #b42318;--radius: 12px;--font: ui-sans-serif, -apple-system, "Segoe UI", Helvetica, "Apple Color Emoji", Arial, sans-serif}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{font-family:var(--font);color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased}.app{display:flex;height:100vh;overflow:hidden}.sidebar{width:260px;flex-shrink:0;background:var(--sidebar-bg);border-right:1px solid var(--sidebar-border);display:flex;flex-direction:column;padding:8px}.new-chat{display:flex;align-items:center;gap:10px;width:100%;padding:10px 12px;margin-bottom:8px;border:1px solid var(--sidebar-border);border-radius:var(--radius);background:#fff;color:var(--text);font-size:14px;font-weight:500;cursor:pointer;transition:background .12s ease}.new-chat:hover{background:#ececec}.history{flex:1;overflow-y:auto;display:flex;flex-direction:column;gap:2px}.history-empty{color:var(--text-faint);font-size:13px;padding:12px}.history-item{text-align:left;width:100%;padding:9px 12px;border:none;border-radius:8px;background:transparent;color:var(--text);font-size:14px;cursor:pointer;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;transition:background .12s ease}.history-item:hover{background:#ececec}.history-item.active{background:#e8e8e8;font-weight:500}.sidebar-footer{padding:12px;border-top:1px solid var(--sidebar-border);margin-top:8px}.clear-btn{display:flex;align-items:center;gap:8px;width:100%;padding:8px 10px;margin-bottom:10px;border:1px solid var(--sidebar-border);border-radius:8px;background:#fff;color:var(--text-muted);font-size:13px;cursor:pointer;transition:background .12s ease,color .12s ease}.clear-btn:hover{background:var(--error-bg);border-color:var(--error-border);color:var(--error-text)}.footer-title{font-size:13px;font-weight:600}.footer-sub{font-size:12px;color:var(--text-faint)}.main{flex:1;display:flex;flex-direction:column;min-width:0}.topbar{height:56px;flex-shrink:0;display:flex;align-items:center;gap:12px;padding:0 20px;border-bottom:1px solid var(--sidebar-border)}.topbar-title{font-size:15px;font-weight:600}.model-picker{display:flex;align-items:center;gap:8px;margin-left:auto}.picker{display:inline-flex;align-items:center;gap:6px}.picker-caption{font-size:12px;color:var(--text-faint)}.picker-select{-moz-appearance:none;appearance:none;-webkit-appearance:none;font-family:inherit;font-size:13px;color:var(--text);background:var(--chip-bg) url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%236e6e80' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'><path d='m6 9 6 6 6-6'/></svg>") no-repeat right 9px center;border:1px solid var(--chip-border);border-radius:999px;padding:6px 28px 6px 12px;cursor:pointer;transition:background-color .12s ease,border-color .12s ease}.picker-select:hover:not(:disabled){border-color:#d0d0d8}.picker-select:focus{outline:none;border-color:#b4b4c0}.picker-select:disabled{opacity:.55;cursor:default}.settings{position:relative;margin-left:4px}.settings-btn{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:50%;border:1px solid transparent;background:transparent;color:var(--text-muted);cursor:pointer;transition:background .12s ease,color .12s ease}.settings-btn:hover{background:var(--chip-bg);color:var(--text)}.settings-popover{position:absolute;top:calc(100% + 8px);right:0;z-index:30;width:320px;max-width:88vw;background:#fff;border:1px solid var(--sidebar-border);border-radius:16px;box-shadow:0 12px 32px #00000024;padding:14px}.settings-section-title{font-size:12px;font-weight:600;color:var(--text-muted);text-transform:uppercase;letter-spacing:.04em;margin-bottom:10px}.settings-options{display:flex;flex-direction:column;gap:4px}.settings-option{display:flex;align-items:flex-start;gap:10px;padding:8px 10px;border-radius:10px;cursor:pointer;transition:background .12s ease}.settings-option:hover{background:var(--chip-bg)}.settings-option input{margin-top:3px;accent-color:#0d0d0d}.settings-option-body{display:flex;flex-direction:column;gap:2px}.settings-option-label{font-size:14px;font-weight:500;color:var(--text)}.settings-option-hint{font-size:12px;color:var(--text-faint);line-height:1.4}.search-opts{position:relative}.search-opts-btn{display:inline-flex;align-items:center;gap:6px;padding:6px 12px;border-radius:999px;border:1px solid var(--chip-border);background:var(--chip-bg);color:var(--text-muted);font-size:13px;cursor:pointer;transition:background .12s ease}.search-opts-btn:hover{background:#ececec}.search-opts-badge{display:inline-flex;align-items:center;justify-content:center;min-width:17px;height:17px;padding:0 5px;border-radius:999px;background:#0d0d0d;color:#fff;font-size:11px;font-weight:600}.search-opts-popover{position:absolute;top:calc(100% + 8px);right:0;z-index:30;width:340px;max-width:90vw;background:#fff;border:1px solid var(--sidebar-border);border-radius:16px;box-shadow:0 12px 32px #00000024;padding:14px;display:flex;flex-direction:column;gap:14px}.opt-row{display:flex;flex-direction:column;gap:6px}.opt-caption{font-size:12px;font-weight:600;color:var(--text-muted)}.opt-select{-moz-appearance:none;appearance:none;-webkit-appearance:none;font-family:inherit;font-size:13px;color:var(--text);background:var(--chip-bg) url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%236e6e80' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'><path d='m6 9 6 6 6-6'/></svg>") no-repeat right 10px center;border:1px solid var(--chip-border);border-radius:10px;padding:8px 30px 8px 12px;cursor:pointer}.opt-select:focus{outline:none;border-color:#b4b4c0}.opt-note{font-size:12px;color:var(--text-faint);line-height:1.4}.domain-field{display:flex;flex-direction:column;gap:6px}.domain-label{font-size:12px;font-weight:600;color:var(--text-muted)}.domain-chips{display:flex;flex-wrap:wrap;gap:6px;align-items:center;padding:7px 8px;border:1px solid var(--chip-border);border-radius:10px;background:#fff;min-height:38px}.domain-chip{display:inline-flex;align-items:center;gap:4px;padding:3px 4px 3px 9px;background:var(--chip-bg);border:1px solid var(--chip-border);border-radius:999px;font-size:12px;color:var(--text)}.domain-chip-x{display:inline-flex;align-items:center;justify-content:center;width:16px;height:16px;border:none;border-radius:50%;background:transparent;color:var(--text-faint);font-size:14px;line-height:1;cursor:pointer}.domain-chip-x:hover{background:#e0e0e0;color:var(--text)}.domain-input{flex:1;min-width:120px;border:none;outline:none;font-family:inherit;font-size:13px;background:transparent;color:var(--text);padding:2px}.scroll{flex:1;overflow-y:auto}.turns{max-width:768px;margin:0 auto;padding:24px 20px 40px}.empty-state{max-width:640px;margin:0 auto;padding:12vh 20px 0;text-align:center}.empty-state h1{font-size:28px;font-weight:600;margin:0 0 12px}.empty-state p{color:var(--text-muted);font-size:15px;line-height:1.6;margin:0 0 28px}.empty-state code{background:var(--chip-bg);border:1px solid var(--chip-border);border-radius:6px;padding:1px 6px;font-size:13px}.suggestions{display:flex;flex-direction:column;gap:10px}.suggestions button{padding:12px 16px;border:1px solid var(--sidebar-border);border-radius:var(--radius);background:#fff;color:var(--text);font-size:14px;text-align:left;cursor:pointer;transition:background .12s ease}.suggestions button:hover:not(:disabled){background:var(--chip-bg)}.suggestions button:disabled{opacity:.5;cursor:default}.message{display:flex;gap:16px;padding:18px 0}.message+.message{border-top:1px solid #f0f0f0}.avatar{flex-shrink:0;width:30px;height:30px;border-radius:6px;display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:600;color:#fff}.avatar-user{background:#b4b4b4}.avatar-assistant{background:#0d0d0d}.message-body{flex:1;min-width:0;padding-top:3px}.bubble{white-space:pre-wrap;word-wrap:break-word;line-height:1.6;font-size:15px}.markdown{font-size:15px;line-height:1.7;color:var(--text)}.markdown p{margin:0 0 14px}.markdown p:last-child{margin-bottom:0}.markdown h1,.markdown h2,.markdown h3{margin:20px 0 10px;line-height:1.3}.markdown ul,.markdown ol{margin:0 0 14px;padding-left:24px}.markdown li{margin:4px 0}.markdown a{color:var(--link);text-decoration:none}.markdown a:hover{text-decoration:underline}.cite-pill{position:relative;display:inline-flex;align-items:center;gap:5px;vertical-align:baseline;margin:0 1px;padding:2px 8px 2px 5px;border-radius:999px;background:var(--chip-bg);border:1px solid transparent;font-size:12px;font-weight:500;line-height:1.4;color:var(--text-muted);text-decoration:none!important;white-space:nowrap;cursor:pointer;transition:background .12s ease,color .12s ease}.cite-pill:hover{background:#0d0d0d;color:#fff}.cite-pill-label{letter-spacing:.01em}.cite-favicon{width:14px;height:14px;border-radius:50%;object-fit:cover;display:block;background:#fff}.cite-favicon-fallback{display:inline-flex;align-items:center;justify-content:center;color:var(--text-faint)}.cite-card{position:absolute;top:calc(100% + 6px);left:0;z-index:30;display:none;flex-direction:column;gap:6px;width:300px;max-width:80vw;padding:12px 14px;background:#fff;border:1px solid var(--sidebar-border);border-radius:14px;box-shadow:0 10px 28px #00000024;white-space:normal;cursor:default}.cite-pill:hover .cite-card{display:flex}.cite-card-head{display:flex;align-items:center;gap:7px}.cite-card-site{font-size:12px;font-weight:500;color:var(--text-muted)}.cite-card-title{font-size:14px;font-weight:500;line-height:1.4;color:var(--text)}.cite-card-host{font-size:12px;color:var(--text-faint)}.markdown code{background:var(--chip-bg);border-radius:5px;padding:1px 5px;font-size:13px;font-family:ui-monospace,SF Mono,Menlo,Consolas,monospace}.markdown pre{background:#0d0d0d;color:#f4f4f4;padding:14px 16px;border-radius:10px;overflow-x:auto;margin:0 0 14px}.markdown pre code{background:transparent;color:inherit;padding:0;font-size:13px}.markdown table{border-collapse:collapse;margin:0 0 14px;width:100%}.markdown th,.markdown td{border:1px solid var(--sidebar-border);padding:8px 12px;text-align:left;font-size:14px}.markdown th{background:var(--chip-bg)}.markdown blockquote{border-left:3px solid var(--chip-border);margin:0 0 14px;padding-left:14px;color:var(--text-muted)}.web-actions{display:flex;flex-direction:column;gap:6px;margin-bottom:14px}.action-chip{display:inline-flex;align-items:center;gap:8px;align-self:flex-start;max-width:100%;padding:7px 12px;background:var(--chip-bg);border:1px solid var(--chip-border);border-radius:999px;font-size:13px;color:var(--text-muted)}.action-chip-live{animation:action-pulse 1.4s ease-in-out infinite}@keyframes action-pulse{0%,to{opacity:1}50%{opacity:.55}}.action-icon{display:inline-flex;color:var(--text-faint)}.action-text{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.action-host{color:var(--text);font-weight:500}.action-summary{display:inline-flex;align-items:center;gap:8px;align-self:flex-start;max-width:100%;padding:7px 12px;background:var(--chip-bg);border:1px solid var(--chip-border);border-radius:999px;font-size:13px;color:var(--text-muted);cursor:pointer;transition:background .12s ease}.action-summary:hover{background:#ececec}.action-caret{color:var(--text-faint);font-size:11px}.action-list{display:flex;flex-direction:column;gap:6px;margin-top:2px;padding-left:4px}.action-expanded{display:flex;flex-direction:column;gap:8px;margin-top:4px;padding-left:4px}.site-pills{display:flex;flex-wrap:wrap;gap:8px}.site-pill{display:inline-flex;align-items:center;gap:7px;padding:5px 11px 5px 6px;background:var(--chip-bg);border:1px solid var(--chip-border);border-radius:999px;font-size:13px;color:var(--text);text-decoration:none;transition:background .12s ease}.site-pill:hover{background:#ececec}.site-pill-label{font-weight:500}.reasoning{margin-bottom:12px}.reasoning-toggle{background:transparent;border:none;color:var(--text-muted);font-size:13px;cursor:pointer;padding:0}.reasoning-body{margin-top:8px;padding:10px 14px;background:var(--chip-bg);border-left:2px solid var(--chip-border);border-radius:8px;font-size:13px;color:var(--text-muted);white-space:pre-wrap;line-height:1.6}.sources{position:relative;margin-top:14px;padding-top:12px;border-top:1px solid #f0f0f0}.sources-btn{display:inline-flex;align-items:center;gap:8px;padding:6px 12px 6px 8px;background:var(--chip-bg);border:1px solid var(--chip-border);border-radius:999px;font-size:13px;font-weight:500;color:var(--text);cursor:pointer;transition:background .12s ease}.sources-btn:hover{background:#ececec}.sources-favicons{display:inline-flex;align-items:center}.sources-favicon-wrap{display:inline-flex;margin-left:-6px;border-radius:50%;background:#fff;padding:1px;box-shadow:0 0 0 1px var(--chip-border)}.sources-favicon-wrap:first-child{margin-left:0}.sources-label{color:var(--text-muted)}.favicon{width:16px;height:16px;border-radius:50%;object-fit:cover;display:block}.favicon-fallback{display:inline-flex;align-items:center;justify-content:center;color:var(--text-faint);background:var(--chip-bg)}.sources-popover{position:absolute;bottom:calc(100% + 8px);left:0;width:360px;max-width:86vw;max-height:420px;overflow-y:auto;background:#fff;border:1px solid var(--sidebar-border);border-radius:16px;box-shadow:0 12px 32px #00000024;padding:6px;z-index:20}.sources-popover-title{font-size:13px;font-weight:600;color:var(--text-muted);padding:8px 10px 6px}.sources-popover-list{display:flex;flex-direction:column}.source-item{display:block;padding:10px;border-radius:10px;text-decoration:none;color:var(--text);transition:background .12s ease}.source-item:hover{background:var(--chip-bg)}.source-item+.source-item{border-top:1px solid #f4f4f4}.source-item-head{display:flex;align-items:center;gap:8px;margin-bottom:4px}.source-item-host{font-size:12px;color:var(--text-muted)}.source-item-title{font-size:14px;font-weight:500;line-height:1.4;color:var(--text)}.typing{display:inline-flex;gap:4px;padding:6px 0}.typing span{width:7px;height:7px;border-radius:50%;background:var(--text-faint);animation:blink 1.3s infinite both}.typing span:nth-child(2){animation-delay:.2s}.typing span:nth-child(3){animation-delay:.4s}@keyframes blink{0%,80%,to{opacity:.25}40%{opacity:1}}.error-box{margin-top:10px;padding:10px 14px;background:var(--error-bg);border:1px solid var(--error-border);border-radius:8px;color:var(--error-text);font-size:13px;white-space:pre-wrap;word-break:break-word}.composer{flex-shrink:0;padding:12px 20px 18px;border-top:1px solid var(--sidebar-border)}.composer-inner{max-width:768px;margin:0 auto;display:flex;align-items:flex-end;gap:8px;border:1px solid #d9d9e3;border-radius:26px;padding:8px 8px 8px 18px;background:#fff;box-shadow:0 2px 6px #0000000a}.composer-input{flex:1;border:none;outline:none;resize:none;font-family:inherit;font-size:15px;line-height:1.5;max-height:200px;background:transparent;color:var(--text);padding:6px 0}.send-btn{flex-shrink:0;width:36px;height:36px;border-radius:50%;border:none;background:var(--accent);color:#fff;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:background .12s ease}.send-btn:hover:not(:disabled){background:var(--accent-hover)}.send-btn:disabled{background:#d9d9e3;cursor:default}.composer-hint{max-width:768px;margin:8px auto 0;text-align:center;font-size:12px;color:var(--text-faint)}.message-footer{margin-top:12px}.debug-btn{display:inline-flex;align-items:center;gap:6px;padding:5px 11px;border-radius:999px;border:1px solid var(--chip-border);background:var(--chip-bg);color:var(--text-muted);font-size:12px;cursor:pointer;transition:background .12s ease}.debug-btn:hover{background:#ececec;color:var(--text)}.debug-overlay{position:fixed;top:0;right:0;bottom:0;left:0;z-index:50;background:#0006;display:flex;align-items:center;justify-content:center;padding:24px}.debug-modal{width:860px;max-width:96vw;height:80vh;max-height:720px;background:#fff;border-radius:16px;box-shadow:0 20px 60px #0000004d;display:flex;flex-direction:column;overflow:hidden}.debug-header{display:flex;align-items:center;justify-content:space-between;padding:10px 12px;border-bottom:1px solid var(--sidebar-border)}.debug-tabs{display:flex;gap:4px}.debug-tab{padding:6px 12px;border:none;border-radius:8px;background:transparent;color:var(--text-muted);font-size:13px;font-weight:500;cursor:pointer}.debug-tab:hover{background:var(--chip-bg)}.debug-tab.active{background:#0d0d0d;color:#fff}.debug-close{width:30px;height:30px;border:none;border-radius:8px;background:transparent;color:var(--text-muted);font-size:20px;line-height:1;cursor:pointer}.debug-close:hover{background:var(--chip-bg)}.debug-actions{display:flex;flex-wrap:wrap;gap:8px;padding:10px 12px;border-bottom:1px solid var(--sidebar-border)}.debug-action{padding:6px 12px;border:1px solid var(--chip-border);border-radius:8px;background:#fff;color:var(--text);font-size:12px;cursor:pointer;transition:background .12s ease}.debug-action:hover{background:var(--chip-bg)}.debug-json{flex:1;overflow:auto;margin:0;padding:14px 16px;background:#0d0d0d;color:#e6e6e6;font-family:ui-monospace,SF Mono,Menlo,Consolas,monospace;font-size:12px;line-height:1.5;white-space:pre;-moz-tab-size:2;tab-size:2}.attach-row{display:flex;flex-wrap:wrap;gap:6px;max-width:768px;margin:0 auto 8px}.attach-chip{display:inline-flex;align-items:center;gap:6px;padding:4px 6px 4px 10px;background:var(--chip-bg);border:1px solid var(--chip-border);border-radius:8px;font-size:12px}.attach-name{max-width:200px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.attach-size{color:var(--text-faint)}.attach-x{border:none;background:transparent;color:var(--text-faint);font-size:14px;line-height:1;cursor:pointer}.attach-x:hover{color:var(--text)}.attach-error{max-width:768px;margin:0 auto 8px;font-size:12px;color:var(--error-text)}.attach-btn{flex-shrink:0;width:34px;height:34px;border-radius:50%;border:none;background:transparent;color:var(--text-muted);display:flex;align-items:center;justify-content:center;cursor:pointer}.attach-btn:hover{background:var(--chip-bg);color:var(--text)}.composer-inner.drag-over{border-color:#0d0d0d;box-shadow:0 0 0 3px #0d0d0d14}.stop-btn{flex-shrink:0;width:36px;height:36px;border-radius:50%;border:none;background:#0d0d0d;color:#fff;display:flex;align-items:center;justify-content:center;cursor:pointer}.stop-btn:hover{background:var(--accent-hover)}.msg-attachments{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:8px}.msg-attachment{font-size:12px;color:var(--text-muted);background:var(--chip-bg);border:1px solid var(--chip-border);border-radius:8px;padding:3px 8px}.history-item{display:flex;align-items:center;gap:6px}.history-item-label{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.history-item-delete{flex-shrink:0;border:none;background:transparent;color:var(--text-faint);font-size:16px;line-height:1;cursor:pointer;opacity:0;border-radius:4px;width:20px;height:20px}.history-item:hover .history-item-delete{opacity:1}.history-item-delete:hover{background:var(--error-bg);color:var(--error-text)}.cancelled-badge{display:inline-block;margin-top:8px;padding:2px 10px;border-radius:999px;background:var(--chip-bg);border:1px solid var(--chip-border);font-size:12px;color:var(--text-muted)}.message-footer{margin-top:12px;display:flex;align-items:center;gap:12px}.metrics-line{font-size:12px;color:var(--text-faint)}.turn-actions{display:flex;justify-content:center;padding:12px 0 4px}.regenerate-btn{padding:7px 14px;border:1px solid var(--chip-border);border-radius:999px;background:#fff;color:var(--text);font-size:13px;cursor:pointer;transition:background .12s ease}.regenerate-btn:hover{background:var(--chip-bg)}.settings-prompt{width:100%;box-sizing:border-box;resize:vertical;font-family:inherit;font-size:13px;line-height:1.5;color:var(--text);border:1px solid var(--chip-border);border-radius:10px;padding:8px 10px;background:#fff}.settings-prompt:focus{outline:none;border-color:#b4b4c0}.settings-reset-prompt,.opt-reset{margin-top:8px;padding:6px 12px;border:1px solid var(--chip-border);border-radius:8px;background:#fff;color:var(--text-muted);font-size:12px;cursor:pointer}.settings-reset-prompt:hover,.opt-reset:hover{background:var(--chip-bg);color:var(--text)}.history-item-icon{flex-shrink:0;border:none;background:transparent;color:var(--text-faint);font-size:14px;line-height:1;cursor:pointer;opacity:0;border-radius:4px;width:20px;height:20px}.history-item:hover .history-item-icon{opacity:1}.history-item-icon:hover{background:var(--chip-bg);color:var(--text)}.import-btn{display:block;width:100%;padding:8px 10px;margin-bottom:10px;border:1px solid var(--sidebar-border);border-radius:8px;background:#fff;color:var(--text-muted);font-size:13px;cursor:pointer;transition:background .12s ease}.import-btn:hover{background:var(--chip-bg);color:var(--text)}.thinking-chip{display:inline-flex;align-items:center;gap:8px;margin-bottom:12px;padding:7px 14px;background:var(--chip-bg);border:1px solid var(--chip-border);border-radius:999px;font-size:13px;color:var(--text-muted);animation:action-pulse 1.4s ease-in-out infinite}.thinking-dot{width:7px;height:7px;border-radius:50%;background:var(--text-faint);animation:blink 1.3s infinite both}