html,body,#root{margin:0;padding:0;height:100%;width:100%}body{font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background-color:var(--bg-secondary)}*{box-sizing:border-box}:root{--highlight-text: #1d1d1f;--bg-primary: #ffffff;--bg-secondary: #f5f5f7;--bg-tertiary: #fafafa;--bg-hover: #f5f5f5;--mac-bg: #fafafa;--mac-content-bg: #ffffff;--mac-border: #e5e5e5;--mac-border-light: #f0f0f0;--mac-text: #1d1d1f;--mac-secondary: #86868b;--mac-accent: #007aff;--mac-highlight: #e7f4ff;--mac-hover: #f5f5f5;--toolbar-height: 52px;--text-primary: #1d1d1f;--text-secondary: #86868b;--text-tertiary: #a1a1a6;--border-color: #e5e5e5;--border-light: #f0f0f0;--accent: #007aff;--accent-color: #1976d2;--accent-hover: #1565c0;--accent-light: #90caf9;--accent-bg: #e3f2fd;--user-bubble-bg: #1a1a1a;--user-bubble-text: #ffffff;--error: #dc2626;--error-bg: #fee2e2;--info-bg: #e3f2fd;--info-text: #1565c0;--warning-bg: #fff3e0;--warning-text: #e65100;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px rgba(0, 0, 0, .1);--shadow-lg: 0 4px 20px rgba(0, 0, 0, .15);--overlay-bg: rgba(0, 0, 0, .5);--mac-highlight-border: #b3d9ff;--danger-color: #dc2626;--danger-bg: #fef2f2;--success-color: #059669;--success-bg: #d1fae5;--parsed-bg: #fef3c7;--parsed-color: #b45309;--processing-bg: #e0e7ff;--processing-color: #4338ca;--text-bold: #000000}[data-theme=dark]{--highlight-text: #ffffff;--bg-primary: #1a1a1a;--bg-secondary: #2d2d2d;--bg-tertiary: #252525;--bg-hover: #3d3d3d;--mac-bg: #1a1a1a;--mac-content-bg: #252525;--mac-border: #3d3d3d;--mac-border-light: #2d2d2d;--mac-text: #f5f5f7;--mac-secondary: #a1a1a6;--mac-accent: #0a84ff;--mac-highlight: #1c3a5e;--mac-hover: #3d3d3d;--text-primary: #f5f5f7;--text-secondary: #a1a1a6;--text-tertiary: #888888;--border-color: #3d3d3d;--border-light: #2d2d2d;--accent: #0a84ff;--accent-color: #2196f3;--accent-hover: #1e88e5;--accent-light: #64b5f6;--accent-bg: #1e3a5f;--user-bubble-bg: #0a84ff;--user-bubble-text: #ffffff;--error: #f87171;--error-bg: #450a0a;--info-bg: #1e3a5f;--info-text: #90caf9;--warning-bg: #4a3000;--warning-text: #ffb74d;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .3);--shadow-md: 0 4px 6px rgba(0, 0, 0, .4);--shadow-lg: 0 4px 20px rgba(0, 0, 0, .5);--overlay-bg: rgba(0, 0, 0, .7);--mac-highlight-border: #1c5a9e;--danger-color: #f87171;--danger-bg: #450a0a;--success-color: #34d399;--success-bg: #064e3b;--parsed-bg: #422006;--parsed-color: #fbbf24;--processing-bg: #1e1b4b;--processing-color: #a5b4fc;--text-bold: #ffffff}*{box-sizing:border-box;margin:0;padding:0}body,html{height:100%;width:100%;overflow:hidden;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif}.app-layout{display:flex;height:100vh;width:100vw;overflow:hidden;background-color:var(--bg-primary)}.sidebar-mac{width:260px;min-width:260px;height:100%;flex-shrink:0;background-color:var(--bg-secondary);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-right:1px solid var(--border-color);display:flex;flex-direction:column;transition:width .3s cubic-bezier(.4,0,.2,1),min-width .3s cubic-bezier(.4,0,.2,1);z-index:10}.sidebar-mac.collapsed{width:68px;min-width:68px}.main-content{flex-grow:1;flex-shrink:1;display:flex;flex-direction:column;height:100%;min-width:0;overflow:hidden;position:relative;background-color:var(--bg-primary)}.main-content-scrollable,.chat-main-content{flex:1;width:100%;height:100%;display:flex;flex-direction:column;overflow:hidden}.global-loader{position:fixed;top:20px;right:20px;background:#000000b3;color:#fff;padding:8px 16px;border-radius:20px;font-size:12px;z-index:9999;pointer-events:none}.click-overlay-mac{position:fixed;inset:0;z-index:99;background:transparent}.lp{min-height:100vh;display:flex;background:#09090b;color:#fafafa;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif}.lp-left{flex:1.3;display:flex;align-items:center;justify-content:center;padding:60px 40px;border-right:1px solid #18181b}.lp-slideshow{max-width:520px;width:100%;text-align:center}.lp-slide-title{font-size:28px;font-weight:600;margin:0 0 32px;color:#fafafa}.lp-slide-img-wrap{width:100%;aspect-ratio:16/10;background:#18181b;border:1px solid #27272a;border-radius:16px;overflow:hidden;margin-bottom:28px}.lp-slide-img{width:100%;height:100%;object-fit:cover}.lp-slide-desc{font-size:16px;line-height:1.7;color:#a1a1aa;margin:0 0 36px;min-height:52px;padding:0 20px}.lp-nav{display:flex;align-items:center;justify-content:center;gap:20px}.lp-nav-btn{width:44px;height:44px;display:flex;align-items:center;justify-content:center;background:transparent;border:1px solid #27272a;border-radius:10px;color:#71717a;cursor:pointer;transition:all .15s}.lp-nav-btn:hover{background:#18181b;border-color:#3f3f46;color:#fafafa}.lp-dots{display:flex;gap:8px}.lp-dot{width:8px;height:8px;border-radius:4px;background:#3f3f46;border:none;padding:0;cursor:pointer;transition:all .2s}.lp-dot:hover{background:#52525b}.lp-dot.active{width:24px;background:#fafafa}.lp-right{flex:.7;display:flex;align-items:center;justify-content:center;padding:40px}.lp-login{text-align:center;max-width:300px;width:100%}.lp-logo{margin-bottom:20px}.lp-heading{font-size:26px;font-weight:600;margin:0 0 8px;color:#fafafa}.lp-subtitle{font-size:14px;color:#71717a;margin:0 0 32px}.lp-error{font-size:13px;color:#ef4444;margin-bottom:16px;background:#ef44441a;padding:10px 14px;border-radius:8px}.lp-form{display:flex;flex-direction:column;gap:12px;margin-bottom:16px;width:100%}.lp-input{width:100%;padding:12px 14px;background:#18181b;border:1px solid #27272a;border-radius:8px;color:#fafafa;font-size:14px;outline:none;transition:border-color .15s;box-sizing:border-box}.lp-input:focus{border-color:#3b82f6}.lp-input::placeholder{color:#52525b}.lp-input:disabled{opacity:.6;cursor:not-allowed}.lp-submit{width:100%;padding:12px;background:#fafafa;border:none;border-radius:8px;color:#09090b;font-size:14px;font-weight:500;cursor:pointer;transition:background .15s}.lp-submit:hover:not(:disabled){background:#e4e4e7}.lp-submit:disabled{opacity:.6;cursor:not-allowed}.lp-toggle-mode{background:none;border:none;color:#71717a;font-size:13px;cursor:pointer;padding:8px;transition:color .15s}.lp-toggle-mode:hover:not(:disabled){color:#a1a1aa}.lp-toggle-mode:disabled{cursor:not-allowed}.lp-divider{display:flex;align-items:center;gap:12px;margin:20px 0;width:100%}.lp-divider:before,.lp-divider:after{content:"";flex:1;height:1px;background:#27272a}.lp-divider span{font-size:12px;color:#52525b;text-transform:uppercase}.lp-gbtn{display:flex;justify-content:center;min-height:44px;margin-bottom:20px}.lp-loading{font-size:13px;color:#71717a}.lp-footer{font-size:12px;color:#52525b;margin:0}@media(max-width:900px){.lp{flex-direction:column}.lp-left{border-right:none;border-bottom:1px solid #18181b;padding:40px 20px}.lp-slide-title{font-size:22px;margin-bottom:24px}.lp-slide-desc{font-size:14px;padding:0;margin-bottom:28px}.lp-right{padding:40px 20px}}@media(max-width:480px){.lp-left{padding:30px 16px}.lp-slide-title{font-size:20px}.lp-slideshow{max-width:100%}.lp-nav-btn{width:40px;height:40px}}.sidebar-mac{width:260px;height:100vh;background:var(--mac-bg);border-right:1px solid var(--mac-border);display:flex;flex-direction:column;transition:width .3s cubic-bezier(.4,0,.2,1);font-family:-apple-system,BlinkMacSystemFont,SF Pro Text,Helvetica Neue,sans-serif;overflow:hidden}.sidebar-mac.collapsed{width:68px}.sb-header-mac{height:var(--toolbar-height);display:flex;align-items:center;padding:0 16px;border-bottom:1px solid var(--mac-border);background:var(--mac-bg);flex-shrink:0}.header-controls{display:flex;align-items:center;justify-content:space-between;width:100%}.sidebar-mac.collapsed .header-controls{justify-content:center}.traffic-lights-mac{display:flex;gap:8px}.traffic-dot{width:14px;height:14px;border-radius:50%;position:relative;cursor:default}.traffic-dot:before{content:"";position:absolute;top:2px;left:3px;width:6px;height:4px;background:linear-gradient(180deg,#ffffff80,#fff0);border-radius:50%}.traffic-dot.red{background:linear-gradient(180deg,#ff6058,#e14640);box-shadow:0 0 0 .5px #0000001f,inset 0 -1px 1px #0000001a}.traffic-dot.yellow{background:linear-gradient(180deg,#ffbd2e,#dea123);box-shadow:0 0 0 .5px #0000001f,inset 0 -1px 1px #0000001a}.traffic-dot.green{background:linear-gradient(180deg,#28ca41,#1eab2f);box-shadow:0 0 0 .5px #0000001f,inset 0 -1px 1px #0000001a}.traffic-symbol{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);font-size:10px;font-weight:700;color:#00000080;opacity:0;transition:opacity .15s ease;line-height:1}.traffic-lights-mac:hover .traffic-symbol{opacity:1}.btn-toggle-mac{background:transparent;border:none;color:var(--mac-secondary);cursor:pointer;padding:6px;border-radius:6px;display:flex;align-items:center;justify-content:center;transition:all .15s ease}.btn-toggle-mac:hover{color:var(--mac-text);background:#0000000a}.sb-main-content-mac{flex:1;overflow:hidden;display:flex;flex-direction:column;padding-top:12px}.new-chat-wrapper-mac{padding:0 12px 12px}.btn-new-chat-mac{width:100%;background:var(--mac-content-bg);border:1px solid var(--mac-border);border-radius:8px;padding:10px 14px;font-size:13px;font-weight:500;color:var(--mac-text);box-shadow:0 1px 2px #0000000a;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:8px;transition:all .15s ease}.btn-new-chat-mac:hover{background:var(--mac-bg);border-color:var(--mac-border)}.btn-new-chat-mac svg{color:var(--mac-secondary)}.sb-search-wrapper-mac{padding:0 12px 12px}.sb-search-input-mac{width:100%;background:var(--mac-border);border:none;border-radius:8px;padding:8px 12px;font-size:13px;color:var(--mac-text);outline:none;transition:background .15s ease;box-sizing:border-box}.sb-search-input-mac:focus{background:var(--mac-border-light)}.sb-search-input-mac::placeholder{color:var(--mac-secondary)}.sb-list-mac{flex:1;overflow-y:auto;padding:0 8px}.sb-list-mac::-webkit-scrollbar{width:6px}.sb-list-mac::-webkit-scrollbar-thumb{background:#00000026;border-radius:3px}.section-title-mac{font-size:11px;font-weight:600;color:var(--mac-secondary);padding:12px 8px 8px;letter-spacing:.02em;text-transform:uppercase}.empty-sessions{padding:20px;text-align:center;color:var(--mac-secondary);font-size:13px}.session-row-mac{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:8px;cursor:pointer;font-size:13px;color:var(--mac-text);transition:background .1s ease;position:relative}.session-row-mac:hover{background:var(--mac-hover)}.session-row-mac.active{background:var(--mac-highlight);font-weight:500}.session-icon{color:var(--mac-secondary);flex-shrink:0}.s-name-mac{flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.dots-btn-mac{background:transparent;border:none;color:var(--mac-secondary);opacity:0;cursor:pointer;padding:4px;border-radius:4px;display:flex;align-items:center;justify-content:center;transition:all .15s ease}.session-row-mac:hover .dots-btn-mac{opacity:1}.dots-btn-mac:hover{background:#00000014;color:var(--mac-text)}.collapsed-list{display:flex;flex-direction:column;align-items:center;gap:8px;padding-top:8px}.collapsed-icon-btn{width:40px;height:40px;background:var(--mac-content-bg);border:1px solid var(--mac-border);border-radius:10px;display:flex;align-items:center;justify-content:center;cursor:pointer;color:var(--mac-secondary);box-shadow:0 1px 2px #0000000a;transition:all .15s ease}.collapsed-icon-btn:hover{background:var(--mac-bg);color:var(--mac-text);border-color:var(--mac-border)}.sb-footer-mac{padding:12px;border-top:1px solid var(--mac-border);display:flex;flex-direction:column;gap:4px;background:var(--mac-bg)}.footer-divider{height:1px;background:var(--mac-border-light);margin:6px 0}.nav-item-mac{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:8px;font-size:13px;font-weight:500;color:var(--mac-text);cursor:pointer;transition:background .1s ease}.nav-item-mac:hover{background:#0000000a}.nav-icon{color:var(--mac-secondary);flex-shrink:0}.nav-item-mac:hover .nav-icon{color:var(--mac-text)}.sidebar-mac.collapsed .sb-footer-mac{align-items:center;padding:12px 8px}.sidebar-mac.collapsed .nav-item-mac{justify-content:center;padding:10px;width:40px;height:40px}.sidebar-mac.collapsed .footer-divider{width:32px}.mac-context-menu{position:absolute;right:8px;top:100%;margin-top:4px;background:var(--mac-content-bg);border-radius:10px;box-shadow:0 4px 20px #00000026,0 0 0 1px #0000000d;padding:6px;z-index:100;min-width:140px;animation:menuFadeIn .15s ease-out}@keyframes menuFadeIn{0%{opacity:0;transform:translateY(-4px) scale(.98)}to{opacity:1;transform:translateY(0) scale(1)}}.mac-menu-item{display:flex;align-items:center;gap:10px;width:100%;border:none;background:transparent;padding:10px 12px;text-align:left;font-size:13px;font-weight:500;border-radius:6px;cursor:pointer;color:var(--mac-text);transition:background .1s ease}.mac-menu-item:hover{background:var(--mac-hover)}.mac-menu-item.delete{color:var(--error)}.mac-menu-item.delete svg{color:var(--error)}.mac-menu-item.delete:hover{background:var(--error-bg)}.click-overlay-mac{position:fixed;inset:0;z-index:99}.btn-theme-toggle{width:28px;height:28px;border:none;background:transparent;border-radius:6px;cursor:pointer;color:var(--mac-secondary);display:flex;align-items:center;justify-content:center;transition:all .15s ease}.btn-theme-toggle:hover{background:var(--mac-hover);color:var(--mac-text)}.user-profile-menu{position:relative}.user-profile-trigger{display:flex;align-items:center;gap:8px;padding:8px 12px;background:transparent;border:none;border-radius:6px;cursor:pointer;width:100%;transition:background .15s}.user-profile-trigger:hover{background:var(--hover-bg, rgba(255,255,255,.05))}.user-info-inline{display:flex;flex-direction:column;align-items:flex-start;flex:1;min-width:0}.user-name{font-size:13px;font-weight:500;color:var(--text-primary, #fff);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:140px}.user-email-small{font-size:12px;color:var(--text-secondary, #888);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:140px}.chevron-icon{color:var(--text-secondary, #888);flex-shrink:0}.user-dropdown{position:absolute;bottom:100%;left:0;right:0;margin-bottom:8px;background:var(--dropdown-bg, #1a1a1a);border:1px solid var(--border-color, #2a2a2a);border-radius:8px;padding:8px;box-shadow:0 4px 12px #0000004d;z-index:100}.dropdown-header{padding:8px}.dropdown-email{display:block;font-size:12px;color:var(--text-secondary, #888)}.dropdown-divider{height:1px;background:var(--border-color, #2a2a2a);margin:8px 0}.dropdown-item{display:flex;align-items:center;gap:8px;width:100%;padding:8px;background:transparent;border:none;border-radius:6px;font-size:13px;color:var(--text-primary, #fff);cursor:pointer;transition:background .15s}.dropdown-item:hover{background:var(--hover-bg, rgba(255,255,255,.05))}.dropdown-item.logout{color:#ef4444}.dropdown-item.logout:hover{background:#ef44441a}.user-profile-menu.collapsed .user-profile-trigger{justify-content:center;padding:8px}.user-profile-menu.collapsed .chevron-icon{display:none}.collapsed-dropdown{left:100%;bottom:0;margin-left:8px;margin-bottom:0;min-width:180px}.chat-input-container{width:100%;max-width:768px;margin:0 auto;padding:0 24px}.chat-input-box{background:var(--bg-primary);border:1px solid var(--border-color);border-radius:24px;padding:16px 20px;box-shadow:0 2px 12px #00000014;transition:border-color .2s ease,box-shadow .2s ease}.chat-input-box:focus-within{border-color:#d1d1d1;box-shadow:0 4px 20px #0000001f}.chat-input-textarea{width:100%;border:none;background:transparent;font-family:-apple-system,BlinkMacSystemFont,SF Pro Text,sans-serif;font-size:16px;line-height:1.5;resize:none;outline:none;padding:0;margin:0;max-height:200px;color:var(--text-primary);min-height:24px}.chat-input-textarea::placeholder{color:var(--text-secondary)}.chat-input-textarea:disabled{opacity:.6}.chat-input-actions{display:flex;align-items:center;justify-content:space-between;margin-top:12px;padding-top:12px}.chat-action-btn{display:flex;align-items:center;gap:6px;padding:8px 12px;background:transparent;border:none;border-radius:20px;font-size:13px;font-weight:500;color:var(--text-secondary);cursor:pointer;transition:all .15s ease}.chat-action-btn:hover:not(:disabled){background:var(--bg-hover);color:var(--text-primary)}.chat-action-btn:disabled{opacity:.5;cursor:not-allowed}.chat-action-btn svg{flex-shrink:0}.chat-input-right{display:flex;align-items:center;gap:8px}.mode-toggle.explore-active{background:#34c7591f;color:#34c759}.mode-toggle.explore-active:hover:not(:disabled){background:#34c7592e;color:#34c759}.web-search-toggle.active{background:#10b9811f;color:#10b981}.web-search-toggle.active:hover:not(:disabled){background:#10b9812e;color:#10b981}.kb-picker-btn{position:relative}.kb-badge{position:absolute;top:-4px;right:-4px;min-width:18px;height:18px;background:#ff3b30;color:#fff;font-size:11px;font-weight:600;border-radius:9px;display:flex;align-items:center;justify-content:center;padding:0 5px}.chat-send-btn{width:36px;height:36px;border-radius:50%;border:none;background:var(--bg-secondary);color:var(--text-secondary);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .2s ease}.chat-send-btn.active{background:var(--mac-accent);color:#fff}.chat-send-btn.active:hover{background:#0066d6;transform:scale(1.05)}.chat-send-btn:disabled{cursor:not-allowed;opacity:.6}.file-chips-container{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:12px;padding-bottom:12px}.file-chip{display:inline-flex;align-items:center;gap:8px;padding:8px 12px;background:var(--chip-bg, #f5f5f5);border:1px solid var(--chip-border, #e0e0e0);border-radius:12px;font-size:13px;color:var(--text-primary, #1d1d1f);max-width:200px;transition:all .15s ease}.file-chip:hover{background:var(--chip-hover-bg, #ebebeb)}.file-chip-icon{display:flex;align-items:center;justify-content:center;width:28px;height:28px;background:var(--chip-icon-bg, #e0e0e0);border-radius:6px;flex-shrink:0}.file-chip-icon svg{color:var(--text-secondary, #666)}.file-chip-name{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-weight:500}.file-chip-spinner{width:14px;height:14px;border:2px solid var(--chip-border, #e0e0e0);border-top-color:var(--accent-color, #007aff);border-radius:50%;animation:chip-spin .8s linear infinite;flex-shrink:0}@keyframes chip-spin{to{transform:rotate(360deg)}}.file-chip-check{color:#34c759;flex-shrink:0}.file-chip-remove:hover{background:var(--chip-remove-hover, rgba(0,0,0,.08));color:var(--text-primary, #1d1d1f)}.file-chip.uploading{opacity:.85}.file-chip.done .file-chip-icon{background:#34c75926}.file-chip.done .file-chip-icon svg{color:#34c759}.file-chip.error{border-color:#ff3b30;background:#ff3b3014}.file-chip.error .file-chip-icon{background:#ff3b3026}.file-chip.error .file-chip-icon svg{color:#ff3b30}[data-theme=dark] .file-chip{--chip-bg: #2c2c2e;--chip-border: #3a3a3c;--chip-hover-bg: #3a3a3c;--chip-icon-bg: #3a3a3c;--chip-remove-hover: rgba(255,255,255,.1)}.pasted-image-preview{position:relative;display:inline-block;margin-bottom:12px;border-radius:12px;overflow:hidden;border:1px solid var(--border-color);background:var(--bg-secondary)}.pasted-image-preview img{max-width:200px;max-height:150px;object-fit:contain;display:block}.remove-pasted-image{position:absolute;top:6px;right:6px;width:24px;height:24px;border-radius:50%;border:none;background:#0009;color:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background .15s}.remove-pasted-image:hover{background:#000c}.pasted-image-label{position:absolute;bottom:6px;left:6px;font-size:11px;font-weight:500;color:#fff;background:#0009;padding:2px 8px;border-radius:4px}[data-theme=dark] .pasted-image-preview{border-color:#3a3a3c}.pending-files-container{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:12px;padding-bottom:12px;border-bottom:1px solid var(--border-color)}.pending-image-preview{position:relative;border-radius:10px;overflow:hidden;border:1px solid var(--border-color);background:var(--bg-secondary)}.pending-image-preview img{width:80px;height:80px;object-fit:cover;display:block}.remove-pending-file{position:absolute;top:4px;right:4px;width:20px;height:20px;border-radius:50%;border:none;background:#0009;color:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background .15s;opacity:0}.pending-image-preview:hover .remove-pending-file{opacity:1}.remove-pending-file:hover{background:#ef4444e6}.pending-file-chip{display:flex;align-items:center;gap:8px;padding:8px 12px;background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:10px;font-size:13px;max-width:180px}.pending-file-icon{display:flex;align-items:center;justify-content:center;width:28px;height:28px;background:var(--bg-hover);border-radius:6px;flex-shrink:0;color:var(--text-secondary)}.pending-file-name{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--text-primary);font-weight:500}.remove-pending-file-btn{width:20px;height:20px;border-radius:50%;border:none;background:transparent;color:var(--text-secondary);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .15s;flex-shrink:0}.remove-pending-file-btn:hover{background:#ef444426;color:#ef4444}[data-theme=dark] .pending-image-preview,[data-theme=dark] .pending-file-chip{border-color:#3a3a3c}.chat-landing{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:24px;background:var(--mac-bg)}.chat-landing-content{width:100%;max-width:768px;display:flex;flex-direction:column;align-items:center;gap:32px}.chat-landing-greeting{text-align:center;display:flex;flex-direction:column;align-items:center;gap:16px}.chat-landing-icon{font-size:48px;line-height:1}.chat-landing-title{font-size:28px;font-weight:500;color:var(--mac-text);margin:0;font-family:-apple-system,BlinkMacSystemFont,SF Pro Display,sans-serif}.chat-landing .chat-input-container{width:100%;padding:0}.chat-header{position:sticky;top:0;z-index:10;display:flex;align-items:center;justify-content:center;padding:16px 24px;background:transparent;pointer-events:none}.chat-header-title{display:flex;align-items:center;gap:8px;font-size:16px;font-weight:600;color:var(--mac-text);margin:0;cursor:pointer;padding:10px 16px;border-radius:12px;transition:background .15s ease;background:var(--bg-secondary);pointer-events:auto;box-shadow:0 2px 8px #00000014}.chat-header-title:hover{background:var(--bg-secondary)}.chat-header-chevron{color:var(--mac-secondary)}.pdf-overlay,.pdf-modal-overlay{position:fixed;inset:0;background:var(--overlay-bg);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);display:flex;align-items:center;justify-content:center;z-index:1000}.pdf-modal,.pdf-modal-content{background:var(--bg-primary);border-radius:16px;width:95vw;height:92vh;display:flex;flex-direction:column;overflow:hidden;box-shadow:var(--shadow-lg);border:1px solid var(--border-color)}.pdf-header,.pdf-modal-header{display:flex;justify-content:space-between;align-items:center;padding:16px 24px;background:var(--bg-primary);border-bottom:1px solid var(--border-color)}.h-left,.header-left{display:flex;align-items:center;gap:12px;color:var(--text-primary);font-size:14px}.header-left h2{font-size:15px;font-weight:600;margin:0;color:var(--text-primary);max-width:400px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.header-icon{color:var(--accent);display:flex;align-items:center}.header-center{display:flex;align-items:center;gap:12px}.doc-name{font-weight:600;max-width:300px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:var(--text-primary)}.divider{color:var(--text-tertiary)}.hl-toggle{display:flex;align-items:center;gap:10px;cursor:pointer;padding:8px 14px;background:var(--bg-secondary);border-radius:20px;transition:all .2s;-webkit-user-select:none;user-select:none}.hl-toggle:hover{background:var(--bg-hover)}.hl-toggle input{display:none}.toggle-switch{position:relative;width:36px;height:20px;background:var(--text-tertiary);border-radius:20px;transition:background .2s;flex-shrink:0}.toggle-switch:after{content:"";position:absolute;top:2px;left:2px;width:16px;height:16px;background:#fff;border-radius:50%;transition:transform .2s;box-shadow:0 1px 3px #0003}.hl-toggle input:checked+.toggle-switch{background:var(--accent)}.hl-toggle input:checked+.toggle-switch:after{transform:translate(16px)}.toggle-label{color:var(--text-primary);font-size:13px;font-weight:500}.toggle-count{background:var(--accent);color:#fff;padding:2px 8px;border-radius:10px;font-size:12px;font-weight:600}.h-right{display:flex;align-items:center;gap:12px}.zoom,.zoom-controls{display:flex;align-items:center;gap:4px;background:var(--bg-secondary);border-radius:10px;padding:4px}.zoom button,.zoom-controls button{width:36px;height:36px;border:none;background:transparent;color:var(--text-primary);border-radius:8px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background .15s}.zoom button:hover,.zoom-controls button:hover{background:var(--bg-hover)}.zoom span,.zoom-level{min-width:50px;text-align:center;color:var(--text-secondary);font-size:13px;font-weight:500}.close,.close-btn{width:36px;height:36px;background:var(--bg-secondary);border:none;border-radius:10px;color:var(--text-secondary);cursor:pointer;transition:all .15s;display:flex;align-items:center;justify-content:center}.close:hover,.close-btn:hover{background:var(--error);color:#fff}.pdf-body,.pdf-modal-body{flex:1;display:flex;overflow:hidden;align-items:stretch}.left-col,.left-panel{background:var(--bg-primary);display:flex;flex-direction:column;flex-shrink:0}.resize-divider{width:8px;background:transparent;cursor:col-resize;position:relative;flex-shrink:0}.resize-divider:after{content:"";position:absolute;left:0;top:0;bottom:0;width:1px;background:var(--border-color);pointer-events:none}.resize-divider:before{content:"";position:absolute;inset:0 -4px;cursor:col-resize}.resize-divider:hover{background:#007aff1a}.resize-handle{display:none}.col-head,.panel-header{padding:14px 20px;background:var(--bg-primary);font-weight:600;font-size:14px;color:var(--text-primary);border-bottom:1px solid var(--border-color);display:flex;align-items:center;gap:8px;height:52px;min-height:52px;max-height:52px;box-sizing:border-box;flex-shrink:0}.panel-header .panel-icon{color:var(--accent);display:flex;align-items:center}.col-head.dark,.panel-header.dark{background:var(--bg-primary);color:var(--text-primary);border-bottom:1px solid var(--border-color);display:flex;align-items:center;justify-content:space-between;height:52px;min-height:52px;max-height:52px;box-sizing:border-box;flex-shrink:0}.panel-header-left{display:flex;align-items:center;gap:8px}.col-body,.panel-content{flex:1;overflow-y:auto;overflow-x:hidden;padding:20px;background:var(--bg-tertiary)}.response-box,.ai-response-card{background:var(--bg-primary);border-radius:12px;padding:24px;border:none;overflow-x:auto;word-wrap:break-word;overflow-wrap:break-word;color:var(--text-primary)}.ai-response-card p{margin:0 0 12px;line-height:1.7}.ai-response-card p:last-child{margin-bottom:0}.ai-response-card table{width:100%;border-collapse:collapse;margin:16px 0;font-size:13px;display:block;overflow-x:auto;white-space:nowrap}.ai-response-card th,.ai-response-card td{padding:10px 12px;text-align:left;border:1px solid var(--border-color);white-space:normal}.ai-response-card th{background:var(--bg-secondary);font-weight:600;color:var(--text-primary)}.ai-response-card td{color:var(--text-secondary)}.ai-response-card ul,.ai-response-card ol{margin:8px 0;padding-left:20px}.ai-response-card p,.ai-response-card li{color:var(--text-primary)}.ai-response-card strong,.response-text strong{font-weight:600;color:var(--text-bold)}.response-text{font-size:15px;line-height:1.8;color:var(--text-primary)}.md-p{display:inline}.response-text table{width:100%;border-collapse:collapse;margin:16px 0;font-size:14px;border:1px solid var(--border-color);border-radius:8px;overflow:hidden}.response-text th{background:var(--bg-secondary);padding:12px 14px;text-align:left;font-weight:600;border-bottom:1px solid var(--border-color);color:var(--text-primary)}.response-text td{padding:10px 14px;border-bottom:1px solid var(--border-light);color:var(--text-secondary)}.cite,.modal-citation-link{font-size:.65em;vertical-align:super;color:var(--accent);font-weight:600;cursor:pointer;transition:color .15s ease;margin:0 1px;display:inline;background:none;border:none;padding:0;min-width:unset;height:unset;border-radius:0}.cite:hover,.modal-citation-link:hover{color:var(--accent-hover);text-decoration:underline}.cite.active,.modal-citation-link.active{color:var(--error);font-weight:700}.modal-citation-link.different-doc{color:var(--text-secondary)}.modal-citation-link.different-doc:hover{color:var(--accent)}.modal-citation-link.img-citation{color:#f59e0b}.modal-citation-link.img-citation:hover{color:#d97706}.modal-citation-link.web-citation{color:#10b981}.modal-citation-link.web-citation:hover{color:#059669}.pages-box{margin-top:16px;background:var(--bg-primary);border-radius:12px;padding:16px;border:1px solid var(--border-color)}.pages-head{font-weight:600;font-size:13px;color:var(--text-primary);margin-bottom:12px;display:flex;align-items:center;gap:6px}.pages-list{display:flex;flex-wrap:wrap;gap:8px}.pages-list button{width:42px;height:36px;border:1px solid var(--border-color);background:var(--bg-primary);border-radius:8px;cursor:pointer;font-size:14px;color:var(--text-primary);font-weight:500;transition:all .15s}.pages-list button:hover{background:var(--bg-secondary);border-color:var(--text-tertiary)}.pages-list button.on{background:var(--accent);color:#fff;border-color:var(--accent)}.right-col,.right-panel{flex:1;display:flex;flex-direction:column;background:var(--bg-secondary);min-width:0;border-left:none}.page-nav{display:flex;align-items:center;gap:8px}.page-nav button{width:32px;height:32px;background:var(--bg-primary);border:1px solid var(--border-color);color:var(--text-primary);border-radius:8px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .15s}.page-nav button:hover:not(:disabled){background:var(--bg-secondary);border-color:var(--text-tertiary)}.page-nav button:disabled{opacity:.4;cursor:not-allowed}.page-num,.page-indicator{min-width:70px;text-align:center;color:var(--text-secondary);font-size:13px;font-weight:500}.hl-count,.highlight-count{display:flex;align-items:center;gap:6px;color:#ff9500;font-size:13px;font-weight:600}.pdf-view,.pdf-container{flex:1;overflow:auto;display:flex;justify-content:center;align-items:flex-start;padding:24px;background:var(--bg-secondary)}.pdf-page-wrapper{position:relative}.highlight-overlay-container{position:absolute;top:0;left:0;width:100%;height:100%;pointer-events:none;z-index:10}.highlight-nav-section{margin-top:16px;background:var(--bg-primary);border-radius:12px;padding:16px;border:1px solid var(--border-color)}.nav-header{display:flex;align-items:center;gap:8px;font-weight:600;font-size:13px;color:var(--text-primary);margin-bottom:12px}.nav-icon{color:var(--accent);display:flex;align-items:center}.highlight-badge{background:var(--accent);color:#fff;padding:2px 8px;border-radius:10px;font-size:12px;font-weight:600;margin-left:auto}.page-chips{display:flex;flex-wrap:wrap;gap:8px}.page-chip{padding:8px 14px;border:1px solid var(--border-color);background:var(--bg-primary);border-radius:8px;cursor:pointer;font-size:13px;color:var(--text-primary);font-weight:500;transition:all .15s}.page-chip:hover{background:var(--bg-secondary);border-color:var(--text-tertiary)}.page-chip.active{background:var(--accent);color:#fff;border-color:var(--accent)}.bbox-highlight{position:absolute;background:#ff950040;border:2px solid rgba(255,149,0,.8);border-radius:4px;pointer-events:auto;cursor:pointer;box-shadow:0 0 12px #ff950066;animation:glow 2.5s ease-in-out infinite}.bbox-highlight:hover{background:#ff950066;animation:none}.bbox-highlight.active{border-color:#ff3b30;background:#ff3b3033;box-shadow:0 0 20px #ff3b3080;animation:none}@keyframes glow{0%,to{box-shadow:0 0 12px #ff950066}50%{box-shadow:0 0 24px #ff9500b3}}.loading,.loading-state,.err,.error-state{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;color:var(--text-secondary);padding:50px;font-size:14px}.spin,.spinner{width:32px;height:32px;border:3px solid var(--border-color);border-top-color:var(--accent);border-radius:50%;animation:spin 1s linear infinite}.page-wrap{position:relative}.react-pdf__Page{background:transparent;border-radius:4px}.react-pdf__Page canvas{box-shadow:var(--shadow-md);border-radius:4px}.hl-layer{position:absolute;top:0;left:0;pointer-events:none;z-index:10}.col-body::-webkit-scrollbar,.pdf-view::-webkit-scrollbar,.panel-content::-webkit-scrollbar,.pdf-container::-webkit-scrollbar{width:6px}.col-body::-webkit-scrollbar-track,.panel-content::-webkit-scrollbar-track{background:var(--bg-tertiary)}.col-body::-webkit-scrollbar-thumb,.panel-content::-webkit-scrollbar-thumb{background:var(--text-tertiary);border-radius:3px}.col-body::-webkit-scrollbar-thumb:hover,.panel-content::-webkit-scrollbar-thumb:hover{background:var(--text-secondary)}.pdf-view::-webkit-scrollbar-track,.pdf-container::-webkit-scrollbar-track{background:transparent}.pdf-view::-webkit-scrollbar-thumb,.pdf-container::-webkit-scrollbar-thumb{background:var(--text-tertiary);border-radius:3px}.pdf-view::-webkit-scrollbar-thumb:hover,.pdf-container::-webkit-scrollbar-thumb:hover{background:var(--text-secondary)}@media(max-width:1200px){.left-col{width:400px;min-width:400px}}@media(max-width:900px){.pdf-body,.pdf-modal-body{flex-direction:column}.left-col,.left-panel{width:100%;min-width:100%;max-height:40vh}.right-col,.right-panel{flex:1}}:root{--react-pdf-text-layer: 1;--highlight-bg-color: rgba(180, 0, 170, 1);--highlight-selected-bg-color: rgba(0, 100, 0, 1)}@media screen and (forced-colors:active){:root{--highlight-bg-color: Highlight;--highlight-selected-bg-color: ButtonText}}[data-main-rotation="90"]{transform:rotate(90deg) translateY(-100%)}[data-main-rotation="180"]{transform:rotate(180deg) translate(-100%,-100%)}[data-main-rotation="270"]{transform:rotate(270deg) translate(-100%)}.textLayer{position:absolute;text-align:initial;inset:0;overflow:hidden;line-height:1;text-size-adjust:none;forced-color-adjust:none;transform-origin:0 0;z-index:2}.textLayer :is(span,br){color:transparent;position:absolute;white-space:pre;cursor:text;margin:0;transform-origin:0 0}.textLayer span.markedContent{top:0;height:0}.textLayer .highlight{margin:-1px;padding:1px;background-color:var(--highlight-bg-color);border-radius:4px}.textLayer .highlight.appended{position:initial}.textLayer .highlight.begin{border-radius:4px 0 0 4px}.textLayer .highlight.end{border-radius:0 4px 4px 0}.textLayer .highlight.middle{border-radius:0}.textLayer .highlight.selected{background-color:var(--highlight-selected-bg-color)}.textLayer br::selection{background:transparent}.textLayer .endOfContent{display:block;position:absolute;inset:100% 0 0;z-index:-1;cursor:default;-webkit-user-select:none;user-select:none}.textLayer.selecting .endOfContent{top:0}.hiddenCanvasElement{position:absolute;top:0;left:0;width:0;height:0;display:none}.followup-backdrop{position:fixed;inset:0;background:#0000004d;backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px);display:flex;align-items:flex-end;justify-content:flex-end;padding:24px;z-index:1000;animation:fadeIn .2s ease}.followup-modal{width:420px;max-height:600px;background:#fff;border-radius:20px;box-shadow:0 25px 50px -12px #00000040;display:flex;flex-direction:column;overflow:hidden;animation:slideUp .25s ease}.followup-header{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid #e5e5e5;background:#fafafa}.followup-title{font-size:15px;font-weight:600;color:#1d1d1f;font-family:-apple-system,BlinkMacSystemFont,SF Pro Text,sans-serif}.followup-close{width:32px;height:32px;border:none;background:transparent;border-radius:8px;cursor:pointer;display:flex;align-items:center;justify-content:center;color:#86868b;transition:all .15s ease}.followup-close:hover{background:#e5e5e5;color:#1d1d1f}.followup-original{padding:12px 16px;background:#f5f5f7;border-bottom:1px solid #e5e5e5}.followup-original-toggle{display:flex;align-items:center;justify-content:space-between;width:100%;padding:0;background:none;border:none;cursor:pointer;font-family:inherit}.followup-original-label{font-size:11px;font-weight:600;color:#86868b;text-transform:uppercase;letter-spacing:.5px}.followup-original-toggle svg{color:#86868b}.followup-original-content{margin-top:8px;overflow:hidden;transition:max-height .3s ease}.followup-original-content:not(.expanded){max-height:60px}.followup-original-content.expanded{max-height:200px;overflow-y:auto}.followup-original-preview{font-size:13px;color:#424245;line-height:1.4;margin:0;display:-webkit-box;-webkit-line-clamp:2;line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.followup-original-full{font-size:13px;color:#424245;line-height:1.5}.followup-original-full p{margin:0 0 8px}.followup-original-full p:last-child{margin-bottom:0}.followup-messages{flex:1;overflow-y:auto;padding:16px;display:flex;flex-direction:column;gap:12px;min-height:280px;max-height:400px}.followup-empty{display:flex;align-items:center;justify-content:center;height:100%;color:#86868b;font-size:14px;text-align:center}.followup-empty p{margin:0}.followup-bubble{padding:10px 14px;border-radius:16px;font-size:14px;line-height:1.4;max-width:85%;font-family:-apple-system,BlinkMacSystemFont,SF Pro Text,sans-serif}.followup-bubble.user{align-self:flex-end;background:#1a1a1a;color:#fff;border-radius:16px 16px 4px}.followup-bubble.ai{align-self:flex-start;background:#f5f5f7;color:#1d1d1f;border-radius:16px 16px 16px 4px}.followup-bubble.ai p{margin:0 0 8px}.followup-bubble.ai p:last-child{margin-bottom:0}.followup-bubble.loading{background:#f0f0f5}.followup-typing{color:#86868b;font-style:italic}.followup-input-area{display:flex!important;flex-direction:row!important;align-items:center!important;justify-content:space-between;gap:10px;padding:14px 16px;border-top:1px solid #e5e5e5;background:#fff}.followup-input{flex:1;padding:0 14px!important;border:1px solid #e5e5e5;border-radius:20px;font-size:14px;font-family:inherit;outline:none;transition:border-color .15s ease;height:36px!important;line-height:36px!important;box-sizing:border-box!important;margin:0!important}.followup-send{width:36px!important;height:36px!important;min-width:36px!important;min-height:36px!important;border-radius:50%;border:none;background:#e5e5e5;color:#86868b;cursor:pointer;display:flex!important;align-items:center!important;justify-content:center!important;transition:all .15s ease;flex-shrink:0;margin:0!important;padding:0!important}.followup-input:focus{border-color:#007aff}.followup-input::placeholder{color:#86868b}.followup-input:disabled{background:#f5f5f7;opacity:.7}.followup-send.active{background:#007aff;color:#fff}.followup-send.active:hover{background:#0066d6;transform:scale(1.05)}.followup-send:disabled{cursor:not-allowed;opacity:.6}@media(max-width:500px){.followup-backdrop{padding:0;align-items:flex-end;justify-content:center}.followup-modal{width:480px;max-height:65vh;border-radius:20px 20px 0 0}}.chat-view{flex:1;width:100%;max-width:900px;margin:0 auto;display:flex;flex-direction:column;padding:24px 64px;gap:24px;background-color:var(--bg-primary);overscroll-behavior:none}.message-bubble{padding:12px 18px;border-radius:18px;font-size:15px;line-height:1.5;position:relative;box-sizing:border-box;max-width:75%;font-family:-apple-system,BlinkMacSystemFont,SF Pro Text,sans-serif}.user-message-wrapper{display:flex;flex-direction:row;align-items:flex-start;justify-content:flex-end;gap:8px;width:100%}.message-actions{display:flex;align-items:center;opacity:0;transition:opacity .15s ease}.user-message-wrapper:hover .message-actions{opacity:1}.action-btn{background:transparent;border:none;padding:6px;cursor:pointer;color:var(--text-secondary);border-radius:6px;transition:all .15s ease}.action-btn:hover{background:var(--error-bg);color:var(--error)}.delete-msg-btn{position:absolute;top:8px;right:-30px;background:transparent;border:none;padding:4px;cursor:pointer;opacity:0;transition:opacity .15s ease;color:var(--text-secondary);border-radius:4px}.delete-msg-btn:hover{background:var(--error-bg);color:var(--error)}.message-bubble.user:hover .delete-msg-btn{opacity:1}.message-bubble.user{align-self:flex-end;background-color:var(--user-bubble-bg);color:var(--user-bubble-text);border-radius:18px 18px 4px;box-shadow:0 1px 3px #0000001a}.message-bubble.user p{margin:0}.message-bubble.ai{align-self:flex-start;background-color:transparent;color:var(--text-primary);border-radius:0;box-shadow:none;border:none;min-width:300px}.markdown-content{font-size:15px;line-height:1.7;letter-spacing:-.01em}.markdown-content p{margin:0 0 16px}.markdown-content p:last-child{margin-bottom:0}.markdown-content h3,.markdown-content h4{font-size:16px;font-weight:600;margin:16px 0 8px;color:var(--text-primary)}.markdown-content ul,.markdown-content ol{padding-left:1.5rem;margin:8px 0}.markdown-content li{margin-bottom:4px}.markdown-content strong{font-weight:600;color:var(--text-primary)}.markdown-content table{width:100%;border-collapse:separate;border-spacing:0;margin:20px 0;font-size:14px;border:1px solid var(--border-color);border-radius:12px;overflow:hidden}.markdown-content th{background-color:var(--bg-secondary);padding:10px 14px;text-align:left;font-weight:600;color:var(--text-primary);border-bottom:1px solid var(--border-color)}.markdown-content td{padding:10px 14px;border-bottom:1px solid var(--border-color);color:var(--text-tertiary)}.markdown-content tr:last-child td{border-bottom:none}.citation-link{font-size:.65em;vertical-align:super;color:var(--accent);font-weight:600;cursor:pointer;transition:color .15s ease;margin:0 1px}.citation-link:hover{color:var(--accent-hover);text-decoration:underline}.citation-link.web-citation{color:#10b981}.citation-link.web-citation:hover{color:#059669}.citation-link.img-citation{color:#f59e0b}.citation-link.img-citation:hover{color:#d97706}.sources-section{margin-top:16px;padding-top:16px;border-top:1px solid var(--border-color)}.sources-label{font-size:11px;font-weight:600;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.5px;margin-bottom:10px}.sources-label:not(:first-child){margin-top:16px}.sources-list{display:flex;flex-wrap:wrap;gap:8px}.sources-list.web-sources{flex-wrap:nowrap;overflow-x:auto;padding-bottom:4px;scrollbar-width:thin;scrollbar-color:var(--border-color) transparent;overscroll-behavior-x:contain}.sources-list.web-sources::-webkit-scrollbar{height:4px}.sources-list.web-sources::-webkit-scrollbar-track{background:transparent}.sources-list.web-sources::-webkit-scrollbar-thumb{background:var(--border-color);border-radius:2px}.source-card{display:inline-flex;align-items:center;gap:8px;padding:8px 12px;background:var(--bg-primary);border:1px solid var(--border-color);border-radius:8px;cursor:pointer;transition:all .15s ease;font-family:inherit}.source-card:hover{background:var(--mac-hover);border-color:var(--mac-border);box-shadow:var(--shadow-md)}.source-card:active{box-shadow:none}.source-card.web-source{text-decoration:none;flex-shrink:0}.source-icon{display:flex;align-items:center;justify-content:center;width:28px;height:28px;background:var(--bg-secondary);border-radius:6px;color:var(--accent);flex-shrink:0}.source-icon.web{color:#10b981;background:#10b9811a}.source-card.web-source:hover .source-icon.web{background:#10b98126}.source-name{font-size:13px;font-weight:500;color:var(--text-primary);max-width:200px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.source-arrow{display:flex;align-items:center;color:var(--text-secondary);margin-left:4px;opacity:0;transition:opacity .15s ease}.source-card:hover .source-arrow{opacity:1}.timestamp{font-size:10px;color:var(--text-secondary);margin-top:4px;text-align:right}.message-bubble.user .timestamp{color:#fffc}.cursor-blink{color:var(--accent);animation:blink 1s step-end infinite;margin-left:1px}@keyframes blink{50%{opacity:0}}.message-bubble.ai.thinking{color:var(--text-secondary);font-style:italic;background-color:var(--bg-primary)}.load-more-btn{align-self:center;background:transparent;border:none;padding:8px 16px;cursor:pointer;font-size:13px;color:var(--accent);margin-bottom:20px}.load-more-btn:hover{text-decoration:underline}@media(max-width:900px){.chat-view{padding:16px}.message-bubble{max-width:85%}}.modal-citation-link.different-doc{border-bottom:1px dashed #94a3b8}.modal-citation-link.different-doc:hover{background-color:#e0f2fe}.followup-trigger{display:inline-flex;align-items:center;gap:4px;padding:4px 10px;margin-top:12px;background:transparent;border:1px solid var(--border-color);border-radius:14px;font-size:12px;font-weight:500;color:var(--text-secondary);cursor:pointer;transition:all .15s ease}.followup-trigger:hover{background:var(--bg-secondary);border-color:var(--border-color);color:var(--accent)}.chat-container{position:relative;display:flex;flex-direction:column;height:100%;width:100%;background:var(--bg-primary);overflow:hidden}.chat-scroll-area{display:flex;flex-direction:column;height:100%;overflow-y:auto}.chat-input-sticky{position:sticky;bottom:0;z-index:10;background:transparent;padding:16px 0;margin-top:auto;pointer-events:none}.chat-input-sticky>*{pointer-events:auto}.upload-modal-overlay{position:fixed;inset:0;background:#0006;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;z-index:1000;animation:fadeIn .15s ease-out}.upload-modal{background:var(--bg-primary);border-radius:16px;box-shadow:0 24px 48px #0000002e,0 0 0 1px #0000000d;width:100%;max-width:480px;animation:slideUp .25s cubic-bezier(.16,1,.3,1);overflow:hidden}@keyframes slideUp{0%{opacity:0;transform:translateY(16px) scale(.96)}to{opacity:1;transform:translateY(0) scale(1)}}.upload-modal-header{display:flex;align-items:center;justify-content:space-between;padding:20px 24px;border-bottom:1px solid var(--border-light)}.upload-modal-title{font-size:18px;font-weight:600;color:var(--text-primary);margin:0;letter-spacing:-.02em}.upload-modal-close{width:32px;height:32px;border-radius:50%;border:none;background:transparent;cursor:pointer;display:flex;align-items:center;justify-content:center;color:var(--text-secondary);transition:all .15s ease}.upload-modal-close:hover{background:var(--bg-secondary);color:var(--text-primary)}.upload-modal-body{padding:24px}.upload-dropzone{border:2px dashed var(--border-color);border-radius:12px;padding:40px 24px;display:flex;flex-direction:column;align-items:center;justify-content:center;cursor:pointer;transition:all .2s ease;background:var(--bg-tertiary)}.upload-dropzone:hover{border-color:var(--accent);background:var(--mac-highlight)}.upload-dropzone.dragging{border-color:var(--accent);background:#e7f3ff;transform:scale(1.01)}.upload-dropzone.has-files{border-style:solid;border-color:var(--accent);background:var(--mac-highlight)}.dropzone-icon{width:64px;height:64px;border-radius:16px;background:var(--bg-primary);display:flex;align-items:center;justify-content:center;margin-bottom:16px;color:var(--accent);box-shadow:0 2px 8px #0000000f}.dropzone-text{font-size:15px;font-weight:500;color:var(--text-primary);margin:0 0 4px}.dropzone-subtext{font-size:13px;color:var(--text-secondary);margin:0}.selected-files{display:flex;flex-direction:column;align-items:center;text-align:center}.files-icon{width:48px;height:48px;border-radius:12px;background:var(--accent);display:flex;align-items:center;justify-content:center;margin-bottom:12px;color:#fff}.files-count{font-size:15px;font-weight:600;color:var(--text-primary);margin:0 0 4px}.files-names{font-size:13px;color:var(--text-secondary);margin:0;max-width:300px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.upload-options{margin-top:24px}.options-label{font-size:13px;font-weight:500;color:var(--text-secondary);margin:0 0 12px;text-transform:uppercase;letter-spacing:.03em}.upload-option-card{width:100%;display:flex;align-items:center;gap:12px;padding:16px;border:1px solid var(--border-color);border-radius:12px;background:var(--bg-primary);cursor:pointer;transition:all .15s ease;text-align:left;margin-bottom:8px;position:relative}.upload-option-card:last-child{margin-bottom:0}.upload-option-card:hover{border-color:var(--accent);background:var(--bg-tertiary)}.upload-option-card.recommended{border-color:#007aff;background:linear-gradient(135deg,#f0f7ff,#fff)}.upload-option-card.recommended:hover{background:linear-gradient(135deg,#e7f3ff,#f5f5f5)}.option-icon{width:40px;height:40px;border-radius:10px;display:flex;align-items:center;justify-content:center;flex-shrink:0}.option-icon.cloud{background:var(--bg-secondary);color:var(--text-secondary)}.option-icon.bolt{background:#fef3c7;color:#d97706}.option-content{flex:1;display:flex;flex-direction:column;gap:2px}.option-title{font-size:14px;font-weight:600;color:var(--text-primary)}.option-desc{font-size:12px;color:var(--text-secondary);line-height:1.4}.recommended-badge{position:absolute;top:-8px;right:12px;background:var(--accent);color:#fff;font-size:10px;font-weight:600;padding:4px 8px;border-radius:4px;text-transform:uppercase;letter-spacing:.03em}.option-arrow{color:var(--text-secondary);transition:transform .15s ease}.upload-option-card:hover .option-arrow{transform:translate(2px);color:var(--accent)}.upload-location-info{background:var(--bg-secondary);border-radius:8px;padding:12px 16px;margin-bottom:16px;display:flex;flex-direction:column;gap:8px}.upload-location-item{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-primary)}.upload-location-item strong{color:var(--accent)}.upload-tag-dot{width:10px;height:10px;border-radius:50%;flex-shrink:0}.picker-overlay{position:fixed;inset:0;background:#0006;display:flex;align-items:center;justify-content:center;z-index:1000}.picker-modal{width:900px;max-width:90vw;height:650px;max-height:85vh;background:var(--bg-primary);border-radius:12px;box-shadow:0 20px 60px #0000004d;display:flex;flex-direction:column;overflow:hidden;font-family:-apple-system,BlinkMacSystemFont,SF Pro Text,Helvetica Neue,sans-serif}.picker-header{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--border-color);flex-shrink:0}.picker-header h3{margin:0;font-size:17px;font-weight:600;color:var(--text-primary)}.picker-close{width:32px;height:32px;border:none;background:none;color:var(--text-secondary);cursor:pointer;border-radius:6px;display:flex;align-items:center;justify-content:center;transition:all .15s}.picker-close:hover{background:var(--bg-secondary);color:var(--text-primary)}.picker-body{flex:1;display:flex;overflow:hidden}.picker-sidebar{width:200px;min-width:200px;background:var(--bg-primary);border-right:1px solid var(--border-color);padding:12px 8px;overflow-y:auto}.picker-nav-section{margin-bottom:16px}.picker-nav-title{font-size:11px;font-weight:600;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.02em;padding:12px 12px 6px}.picker-nav-item{display:flex;align-items:center;gap:10px;width:100%;padding:8px 12px;border:none;background:none;border-radius:8px;font-size:13px;color:var(--text-primary);cursor:pointer;text-align:left;transition:all .15s}.picker-nav-item:hover{background:var(--mac-hover)}.picker-nav-item.active{background:var(--accent);color:#fff}.picker-nav-item svg{flex-shrink:0}.picker-tag-dot{width:10px;height:10px;border-radius:50%;flex-shrink:0}.picker-nav-badge{margin-left:auto;background:#ffffff40;color:inherit;font-size:11px;font-weight:600;padding:2px 6px;border-radius:10px;min-width:18px;text-align:center}.picker-nav-item:not(.active) .picker-nav-badge{background:#34c759;color:#fff}.picker-content{flex:1;display:flex;flex-direction:column;overflow:hidden;background:var(--bg-primary)}.picker-search{padding:10px 16px;border-bottom:1px solid var(--border-color);flex-shrink:0}.picker-search input{width:100%;border:none;background:none;font-size:14px;color:var(--text-primary);outline:none}.picker-search input::placeholder{color:var(--text-secondary)}.picker-breadcrumb{display:flex;align-items:center;gap:4px;padding:10px 16px;background:var(--bg-tertiary);border-bottom:1px solid var(--border-color);font-size:13px;flex-shrink:0}.picker-breadcrumb button{background:none;border:none;color:var(--accent);cursor:pointer;padding:2px 4px;border-radius:4px;font-size:13px}.picker-breadcrumb button:hover{background:#007aff1a}.picker-breadcrumb-sep{color:var(--text-secondary)}.picker-table-wrapper{flex:1;overflow-y:auto}.picker-table-wrapper::-webkit-scrollbar{width:8px}.picker-table-wrapper::-webkit-scrollbar-thumb{background:#00000026;border-radius:4px}.picker-empty{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;gap:12px;color:var(--text-secondary)}.picker-empty svg{opacity:.4}.picker-empty p{margin:0;font-size:14px}.picker-table{width:100%;border-collapse:collapse;color:var(--text-primary)}.picker-table th{position:sticky;top:0;background:var(--bg-tertiary);text-align:left;padding:10px 16px;font-size:11px;font-weight:600;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.02em;border-bottom:1px solid var(--border-color);z-index:10}.picker-th-check{width:40px;padding-left:16px!important}.picker-th-name{width:40%}.picker-th-tags{width:30%}.picker-th-type{width:15%}.picker-table th input[type=checkbox]{width:16px;height:16px;cursor:pointer;accent-color:#007aff}.picker-item-row{cursor:pointer;transition:background-color .1s ease;border-bottom:1px solid var(--border-light)}.picker-item-row.selected .picker-cell-name,.picker-item-row.selected .picker-cell-tags,.picker-item-row.selected .picker-cell-type{color:var(--highlight-text)}.picker-item-row:hover{background:var(--bg-secondary)}.picker-item-row.selected{background:var(--mac-highlight)!important;color:var(--highlight-text)}.picker-item-row td{padding:12px 16px;font-size:13px;vertical-align:middle}.picker-cell-check{width:40px;text-align:center}.picker-cell-check input[type=checkbox],.picker-th-check input[type=checkbox]{width:16px;height:16px;cursor:pointer;accent-color:#007aff;margin:0;vertical-align:middle}.picker-cell-name{font-weight:500}.picker-name-wrapper{display:flex;align-items:center;gap:10px}.picker-item-icon{flex-shrink:0;display:flex;align-items:center}.picker-item-name{flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.picker-folder-link{background:none;border:none;color:var(--accent);font-size:13px;font-weight:500;cursor:pointer;padding:0;text-align:left}.picker-folder-link:hover{text-decoration:underline}.picker-fav-star{flex-shrink:0;margin-left:4px}.picker-cell-tags{color:var(--text-secondary)}.picker-tags-wrapper{display:flex;gap:6px;flex-wrap:wrap}.picker-tag-badge{font-size:11px;font-weight:500;padding:3px 8px;border-radius:10px}.picker-tag-more{font-size:11px;color:var(--text-secondary)}.picker-cell-type{color:var(--text-secondary);font-size:12px}.picker-footer{display:flex;align-items:center;justify-content:space-between;padding:14px 20px;border-top:1px solid var(--border-color);background:var(--bg-tertiary);flex-shrink:0}.picker-count{font-size:13px;color:var(--accent);font-weight:500}.picker-actions{display:flex;gap:10px}.picker-btn{padding:10px 20px;border-radius:8px;font-size:14px;font-weight:500;cursor:pointer;transition:all .15s}.picker-btn.secondary{background:var(--bg-secondary);border:none;color:var(--text-primary)}.picker-btn.secondary:hover{background:var(--border-color)}.picker-btn.primary{background:var(--accent);border:none;color:#fff}.picker-btn.primary:hover{background:#0066d6}.process-toast{position:fixed;bottom:24px;right:24px;background:var(--bg-primary);border-radius:12px;box-shadow:0 4px 24px #00000026,0 0 0 1px #0000000d;min-width:280px;overflow:hidden;z-index:9999;animation:slideUp .3s ease;border:1px solid var(--mac-border)}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.process-toast-content{display:flex;align-items:center;gap:12px;padding:16px}.process-toast-spinner{width:20px;height:20px;border:2px solid var(--mac-border);border-top-color:var(--mac-accent);border-radius:50%;animation:spin .8s linear infinite;flex-shrink:0}@keyframes spin{to{transform:rotate(360deg)}}.process-toast-check,.process-toast-error{width:20px;height:20px;display:flex;align-items:center;justify-content:center;flex-shrink:0}.process-toast-text{flex:1;display:flex;flex-direction:column;gap:2px}.process-toast-title{font-size:14px;font-weight:500;color:var(--mac-text)}.process-toast-subtitle{font-size:12px;color:var(--mac-secondary)}.process-toast-dismiss{background:none;border:none;padding:4px;cursor:pointer;color:var(--mac-secondary);border-radius:4px;display:flex;align-items:center;justify-content:center;transition:all .15s ease;flex-shrink:0}.process-toast-dismiss:hover{background:var(--mac-hover);color:var(--mac-text)}.process-toast-progress{height:3px;background:linear-gradient(90deg,#007aff,#5ac8fa,#007aff);background-size:200% 100%;animation:progressMove 1.5s linear infinite}@keyframes progressMove{0%{background-position:100% 0}to{background-position:-100% 0}}.process-toast.error{border-left:3px solid var(--error)}.kb-container{display:flex;width:100%;height:100vh;background:var(--bg-primary);font-family:-apple-system,BlinkMacSystemFont,SF Pro Text,Helvetica Neue,sans-serif;color:var(--mac-text);overflow:hidden}.kb-main{flex:1;display:flex;flex-direction:column;min-width:0;position:relative}.kb-content{flex:1;overflow-y:auto;background:var(--bg-primary)}.kb-content::-webkit-scrollbar{width:8px}.kb-content::-webkit-scrollbar-thumb{background:var(--text-tertiary);border-radius:4px}.kb-content::-webkit-scrollbar-thumb:hover{background:var(--text-secondary)}.kb-table{width:100%;border-collapse:collapse}.kb-table th{position:sticky;top:0;background:var(--bg-tertiary);text-align:left;padding:10px 16px;font-size:11px;font-weight:600;color:var(--mac-secondary);text-transform:uppercase;letter-spacing:.02em;border-bottom:1px solid var(--mac-border);z-index:10}.kb-th-name{width:35%}.kb-th-tags{width:20%}.kb-th-date{width:15%}.kb-th-size{width:12%}.kb-th-status{width:10%}.kb-th-actions{width:8%}.kb-item-row{cursor:pointer;transition:background-color .1s ease;border-bottom:1px solid var(--mac-border-light)}.kb-item-row:hover{background:var(--mac-hover)}.kb-item-row.selected{background:var(--mac-highlight)!important}.kb-item-row td{padding:12px 16px;font-size:13px;vertical-align:middle}.kb-cell-name{font-weight:500}.kb-name-wrapper{display:flex;align-items:center;gap:10px}.kb-item-icon{flex-shrink:0;display:flex;align-items:center}.kb-item-name{flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.kb-favorite-star{flex-shrink:0;margin-left:4px}.kb-cell-tags{color:var(--mac-secondary)}.kb-tags-wrapper{display:flex;gap:6px;flex-wrap:wrap}.kb-tag-badge{font-size:11px;font-weight:500;padding:3px 8px;border-radius:10px}.kb-tag-more{font-size:11px;color:var(--mac-secondary)}.kb-cell-date,.kb-cell-size{color:var(--mac-secondary);font-size:12px}.kb-status-pill{display:inline-block;padding:4px 10px;border-radius:12px;font-size:11px;font-weight:500}.kb-status-pill.completed{background:var(--success-bg);color:var(--success-color)}.kb-status-pill.parsed{background:var(--parsed-bg);color:var(--parsed-color)}.kb-status-pill.processing{background:var(--processing-bg);color:var(--processing-color)}.kb-cell-actions{text-align:right}.kb-row-actions{position:relative;display:inline-block}.kb-menu-btn{width:28px;height:28px;border:none;background:transparent;border-radius:6px;cursor:pointer;color:var(--mac-secondary);display:flex;align-items:center;justify-content:center;transition:all .15s ease}.kb-menu-btn:hover{background:var(--mac-hover);color:var(--mac-text)}.kb-dropdown-menu{position:absolute;top:100%;right:0;margin-top:4px;background:var(--bg-primary);border-radius:10px;box-shadow:var(--shadow-lg);min-width:160px;padding:6px;z-index:100;animation:dropdownFadeIn .12s ease-out;border:1px solid var(--mac-border)}@keyframes dropdownFadeIn{0%{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:translateY(0)}}.kb-dropdown-item{width:100%;display:flex;align-items:center;gap:10px;padding:8px 12px;border:none;background:transparent;border-radius:6px;cursor:pointer;font-size:13px;color:var(--mac-text);transition:background .1s ease;text-align:left}.kb-dropdown-item:hover{background:var(--mac-hover)}.kb-dropdown-item svg{color:var(--mac-secondary);flex-shrink:0}.kb-dropdown-item:hover svg{color:var(--mac-text)}.kb-dropdown-item.danger{color:var(--danger-color)}.kb-dropdown-item.danger svg{color:var(--danger-color)}.kb-dropdown-item.danger:hover{background:var(--danger-bg)}.kb-dropdown-divider{height:1px;background:var(--mac-border-light);margin:4px 0}.kb-empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;padding:40px;text-align:center}.kb-empty-icon{width:80px;height:80px;border-radius:20px;background:var(--bg-secondary);display:flex;align-items:center;justify-content:center;margin-bottom:16px;color:var(--text-tertiary)}.kb-empty-title{font-size:17px;font-weight:600;color:var(--mac-text);margin:0 0 8px}.kb-empty-subtitle{font-size:13px;color:var(--mac-secondary);margin:0 0 20px}.kb-empty-btn{display:flex;align-items:center;gap:8px;padding:10px 20px;background:var(--mac-accent);color:#fff;border:none;border-radius:8px;font-size:14px;font-weight:500;cursor:pointer;transition:background .15s ease}.kb-empty-btn:hover{background:var(--accent-hover)}.kb-status-bar{height:28px;display:flex;align-items:center;justify-content:center;gap:12px;padding:0 16px;background:var(--bg-tertiary);border-top:1px solid var(--mac-border);font-size:12px;color:var(--mac-secondary);flex-shrink:0}.kb-processing-indicator{color:var(--mac-accent);font-weight:500}.kb-favorite-btn{background:none;border:none;padding:4px;cursor:pointer;border-radius:4px;display:flex;align-items:center;justify-content:center;opacity:0;transition:all .15s ease;margin-left:4px;flex-shrink:0}.kb-item-row:hover .kb-favorite-btn,.kb-favorite-btn.active{opacity:1}.kb-favorite-btn:hover{background:var(--mac-hover)}.kb-favorite-btn:hover svg{stroke:#ffd60a}.kb-dropdown-item.has-submenu{position:relative;justify-content:flex-start}.kb-dropdown-item.has-submenu span{flex:1}.submenu-arrow{color:var(--mac-secondary);margin-left:auto}.kb-submenu{position:absolute;right:100%;left:auto;top:-6px;background:var(--bg-primary);border-radius:10px;box-shadow:var(--shadow-lg);min-width:160px;padding:6px;margin-right:4px;margin-left:0;border:1px solid var(--mac-border)}.kb-submenu-empty{padding:10px 12px;font-size:12px;color:var(--mac-secondary);text-align:center}.kb-submenu-item{width:100%;display:flex;align-items:center;gap:8px;padding:8px 12px;border:none;background:transparent;border-radius:6px;cursor:pointer;font-size:13px;color:var(--mac-text);text-align:left;transition:background .1s ease}.kb-submenu-item:hover{background:var(--mac-hover)}.kb-submenu-item .tag-dot{width:10px;height:10px;border-radius:50%;flex-shrink:0}.kb-submenu-item .check-icon{margin-left:auto;color:var(--mac-accent)}.kb-submenu-item.checked{background:var(--accent-bg)}.kb-open-folder-btn{background:none;border:none;padding:4px 8px;cursor:pointer;border-radius:4px;display:flex;align-items:center;justify-content:center;color:var(--mac-secondary);opacity:0;transition:all .15s ease;margin-left:4px}.kb-item-row:hover .kb-open-folder-btn{opacity:1}.kb-open-folder-btn:hover{background:var(--accent-bg);color:var(--mac-accent)}.kb-rename-input{flex:1;padding:4px 8px;font-size:13px;border:1px solid var(--mac-accent);border-radius:4px;outline:none;background:var(--bg-primary);color:var(--mac-text);min-width:100px;max-width:200px}.kb-rename-input:focus{box-shadow:0 0 0 3px #007aff33}.kb-modal-overlay{position:fixed;inset:0;background:var(--overlay-bg);display:flex;align-items:center;justify-content:center;z-index:1000}.kb-modal{background:var(--bg-primary);border-radius:12px;padding:24px;max-width:400px;width:90%;box-shadow:0 20px 60px #0000004d;border:1px solid var(--mac-border)}.kb-modal h3{margin:0 0 16px;font-size:18px;font-weight:600;color:var(--mac-text)}.kb-modal p{margin:0 0 8px;color:var(--mac-text);font-size:14px}.kb-modal-note{color:var(--mac-secondary)!important;font-size:13px!important}.kb-modal-actions{display:flex;gap:12px;margin-top:24px;justify-content:flex-end}.kb-modal-btn{padding:10px 20px;border-radius:8px;font-size:14px;font-weight:500;cursor:pointer;border:none}.kb-modal-btn.secondary{background:var(--bg-secondary);color:var(--mac-text)}.kb-modal-btn.primary{background:var(--mac-accent);color:#fff}.kb-modal-btn:hover{opacity:.9}.kb-item-row.uploading{opacity:.6;pointer-events:none;background:#007aff08}.kb-item-row.uploading td{color:var(--text-secondary)}.kb-item-row.uploading .kb-item-icon svg{opacity:.5}.kb-status-pill.uploading{background:#007aff1f;color:#007aff;position:relative;overflow:hidden}.kb-status-pill.uploading:after{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.3),transparent);animation:shimmer 1.5s infinite}@keyframes shimmer{to{left:100%}}[data-theme=dark] .kb-item-row.uploading{background:#007aff0d}[data-theme=dark] .kb-status-pill.uploading:after{background:linear-gradient(90deg,transparent,rgba(255,255,255,.1),transparent)}.kb-sidebar{width:220px;min-width:220px;height:100%;background:var(--bg-primary);border-right:1px solid var(--mac-border);display:flex;flex-direction:column;transition:all .2s ease;flex-shrink:0}.kb-sidebar.collapsed{width:52px;min-width:52px}.kb-sidebar-header{height:52px;display:flex;align-items:center;justify-content:space-between;padding:0 12px;border-bottom:1px solid var(--mac-border)}.kb-sidebar.collapsed .kb-sidebar-header{justify-content:center;padding:0}.kb-sidebar-title{font-size:12px;font-weight:600;color:var(--mac-secondary);text-transform:uppercase;letter-spacing:.02em}.kb-sidebar-toggle{width:24px;height:24px;border:none;background:transparent;border-radius:4px;cursor:pointer;display:flex;align-items:center;justify-content:center;color:var(--mac-secondary);transition:all .15s ease}.kb-sidebar-toggle:hover{background:#0000000d;color:var(--mac-text)}.kb-sidebar-content{flex:1;overflow-y:auto;padding:8px}.kb-sidebar-section{margin-bottom:16px}.kb-sidebar-section-header{display:flex;align-items:center;justify-content:space-between;padding:8px 8px 4px;font-size:11px;font-weight:600;color:var(--mac-secondary);text-transform:uppercase;letter-spacing:.02em}.kb-add-btn{width:18px;height:18px;border:none;background:transparent;border-radius:4px;cursor:pointer;display:flex;align-items:center;justify-content:center;color:var(--mac-secondary);transition:all .15s ease}.kb-add-btn:hover{background:#0000000d;color:var(--mac-accent)}.kb-sidebar-item{display:flex;align-items:center;gap:10px;padding:8px 10px;border-radius:6px;cursor:pointer;font-size:13px;color:var(--mac-text);transition:background .1s ease;-webkit-user-select:none;user-select:none;background:transparent;border:none;width:100%;text-align:left}.kb-sidebar-item:focus{outline:none}.kb-sidebar.collapsed .kb-sidebar-item{justify-content:center;padding:10px}.kb-sidebar-item:hover{background:var(--mac-hover)}.kb-sidebar-item.active{background:var(--mac-highlight);color:var(--mac-accent)}.kb-sidebar-item.active svg{stroke:#007aff}.kb-tag-dot{width:10px;height:10px;border-radius:50%;flex-shrink:0}.kb-item-count{margin-left:auto;font-size:11px;color:var(--mac-secondary);background:var(--bg-tertiary);padding:2px 6px;border-radius:10px}.kb-tag-delete-btn{background:none;border:none;padding:2px;cursor:pointer;color:var(--mac-secondary);opacity:0;transition:all .15s ease;margin-left:auto;border-radius:4px;display:flex;align-items:center;justify-content:center}.kb-sidebar-item:hover .kb-tag-delete-btn{opacity:1}.kb-tag-delete-btn:hover{color:var(--error);background:#ff3b301a}.kb-toolbar{height:52px;display:flex;align-items:center;justify-content:space-between;padding:0 16px;border-bottom:1px solid var(--mac-border);background:var(--bg-primary);flex-shrink:0}.kb-toolbar-left,.kb-toolbar-right{display:flex;align-items:center;gap:8px}.kb-breadcrumb{display:flex;align-items:center;gap:4px}.kb-breadcrumb-sep{color:var(--text-secondary);font-size:14px}.kb-breadcrumb-item{background:none;border:none;padding:4px 8px;border-radius:4px;font-size:14px;color:var(--mac-accent);cursor:pointer;transition:all .15s ease}.kb-breadcrumb-item:hover{background:var(--accent-bg)}.kb-breadcrumb-item.current{color:var(--mac-text);font-weight:600;cursor:default}.kb-breadcrumb-item.current:hover{background:transparent}.kb-search-input{width:200px;height:32px;line-height:32px;background:var(--bg-tertiary);border:1px solid var(--mac-border);border-radius:6px;padding:0 12px;font-size:13px;color:var(--mac-text);outline:none;transition:background .15s ease;box-sizing:border-box;margin:0}.kb-search-input:focus{background:var(--bg-secondary);border-color:var(--mac-accent)}.kb-search-input::placeholder{color:var(--text-secondary)}.kb-toolbar-btn{height:32px;padding:0 12px;border:1px solid var(--mac-border);background:var(--bg-primary);border-radius:6px;font-size:13px;font-weight:500;color:var(--mac-text);cursor:pointer;display:flex;align-items:center;gap:6px;transition:all .15s ease}.kb-toolbar-btn:hover{background:var(--mac-hover);border-color:var(--text-secondary)}.kb-toolbar-btn.primary{background:var(--mac-accent);border-color:var(--mac-accent);color:#fff}.kb-toolbar-btn.primary:hover{background:var(--accent-hover)}.kb-toolbar-btn.process-all{background:linear-gradient(135deg,#ff9500,#ff6b00);color:#fff;border:none}.kb-toolbar-btn.process-all:hover{background:linear-gradient(135deg,#ff6b00,#e55a00)}.kb-floating-bar{position:absolute;bottom:48px;left:50%;transform:translate(-50%);z-index:50;animation:floatUp .2s ease-out}@keyframes floatUp{0%{opacity:0;transform:translate(-50%) translateY(8px)}to{opacity:1;transform:translate(-50%) translateY(0)}}.kb-fab-content{display:flex;align-items:center;gap:16px;background:#1d1d1f;padding:10px 16px;border-radius:12px;box-shadow:0 8px 24px #00000040}.kb-fab-info{display:flex;align-items:center;gap:8px;color:#fff;font-size:13px;font-weight:500}.kb-fab-check{width:20px;height:20px;border-radius:50%;background:#007aff;display:flex;align-items:center;justify-content:center}.kb-fab-actions{display:flex;gap:8px;padding-left:16px;border-left:1px solid rgba(255,255,255,.15)}.kb-fab-btn{display:flex;align-items:center;gap:6px;padding:8px 14px;border-radius:8px;border:none;font-size:13px;font-weight:500;cursor:pointer;transition:all .15s ease}.kb-fab-btn.process{background:#007aff;color:#fff}.kb-fab-btn.process:hover{background:#0066d6}.kb-fab-btn.delete{background:#ffffff1a;color:#fff}.kb-fab-btn.delete:hover{background:#dc2626}.kb-fab-clear{width:28px;height:28px;border-radius:50%;border:none;background:#ffffff1a;color:#fff9;cursor:pointer;display:flex;align-items:center;justify-content:center;margin-left:8px;transition:all .15s ease}.kb-fab-clear:hover{background:#fff3;color:#fff}.confirm-modal-overlay{position:fixed;inset:0;background:#0006;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;z-index:1000;animation:fadeIn .15s ease-out}.confirm-modal{background:var(--bg-primary);border-radius:12px;box-shadow:0 20px 40px #00000026,0 0 0 1px #0000000d;width:100%;max-width:400px;animation:slideUp .2s ease-out;overflow:hidden}@keyframes slideUp{0%{opacity:0;transform:translateY(10px) scale(.98)}to{opacity:1;transform:translateY(0) scale(1)}}.confirm-modal-header{display:flex;align-items:center;justify-content:space-between;padding:20px 20px 0}.confirm-modal-title{font-size:17px;font-weight:600;color:var(--text-primary);margin:0;letter-spacing:-.02em}.confirm-modal-close{width:28px;height:28px;border-radius:50%;border:none;background:transparent;cursor:pointer;display:flex;align-items:center;justify-content:center;color:var(--text-secondary);transition:all .15s ease}.confirm-modal-close:hover{background:var(--bg-secondary);color:var(--text-primary)}.confirm-modal-body{padding:16px 20px 24px}.confirm-modal-body p{margin:0;font-size:14px;color:var(--text-secondary);line-height:1.5}.confirm-modal-footer{display:flex;gap:12px;padding:16px 20px;background:var(--bg-tertiary);border-top:1px solid var(--border-color);justify-content:flex-end}.confirm-modal-btn{padding:8px 16px;border-radius:8px;font-size:14px;font-weight:500;cursor:pointer;transition:all .15s ease;border:none}.confirm-modal-btn.cancel{background:var(--bg-primary);color:var(--text-primary);border:1px solid var(--border-color)}.confirm-modal-btn.cancel:hover{background:var(--bg-secondary);border-color:var(--border-color)}.confirm-modal-btn.danger{background:var(--error);color:#fff}.confirm-modal-btn.danger:hover{background:#b91c1c}.confirm-modal-btn.primary{background:var(--accent);color:#fff}.confirm-modal-btn.primary:hover{background:#0066d6}.modal-overlay{position:fixed;inset:0;background:var(--overlay-bg);display:flex;align-items:center;justify-content:center;z-index:1000;animation:fadeIn .15s ease}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.modal-container{background:var(--bg-primary);border-radius:12px;box-shadow:var(--shadow-lg);width:100%;max-width:400px;animation:slideUp .2s ease}@keyframes slideUp{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.modal-header{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--mac-border)}.modal-header h3{margin:0;font-size:16px;font-weight:600;color:var(--mac-text)}.modal-close{background:none;border:none;padding:4px;cursor:pointer;color:var(--mac-secondary);border-radius:4px;display:flex;align-items:center;justify-content:center;transition:all .15s ease}.modal-close:hover{background:var(--mac-hover);color:var(--mac-text)}.modal-body{padding:20px}.folder-name-input{width:100%;height:40px;background:var(--bg-secondary);border:1px solid var(--mac-border);border-radius:8px;padding:0 12px;font-size:14px;color:var(--mac-text);outline:none;box-sizing:border-box;transition:all .15s ease}.folder-name-input:focus{background:var(--bg-primary);border-color:var(--mac-accent);box-shadow:0 0 0 3px #007aff1a}.folder-name-input::placeholder{color:var(--text-secondary)}.modal-footer{display:flex;justify-content:flex-end;gap:8px;padding:16px 20px;border-top:1px solid var(--mac-border)}.btn-cancel,.btn-create{height:36px;padding:0 16px;border-radius:8px;font-size:14px;font-weight:500;cursor:pointer;transition:all .15s ease}.btn-cancel{background:var(--bg-secondary);border:1px solid var(--mac-border);color:var(--mac-text)}.btn-cancel:hover{background:var(--mac-hover)}.btn-create{background:var(--mac-accent);border:none;color:#fff}.btn-create:hover{background:var(--accent-hover)}.btn-create:disabled{background:var(--text-secondary);cursor:not-allowed}.form-group{margin-bottom:16px}.form-group:last-of-type{margin-bottom:0}.form-group label{display:block;font-size:12px;font-weight:600;color:var(--mac-secondary);margin-bottom:8px;text-transform:uppercase;letter-spacing:.02em}.tag-name-input{width:100%;height:40px;background:var(--bg-secondary);border:1px solid var(--mac-border);border-radius:8px;padding:0 12px;font-size:14px;color:var(--mac-text);outline:none;box-sizing:border-box;transition:all .15s ease}.tag-name-input:focus{background:var(--bg-primary);border-color:var(--mac-accent);box-shadow:0 0 0 3px #007aff1a}.tag-name-input::placeholder{color:var(--text-secondary)}.color-picker{display:flex;gap:10px;flex-wrap:wrap}.color-dot{width:28px;height:28px;border-radius:50%;border:2px solid transparent;cursor:pointer;transition:all .15s ease;position:relative}.color-dot:hover{transform:scale(1.1)}.color-dot.selected{border-color:var(--mac-text);box-shadow:0 0 0 2px var(--bg-primary),0 0 0 4px currentColor}.color-dot.selected:after{content:"✓";position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);color:#fff;font-size:12px;font-weight:700}.tag-preview{display:flex;align-items:center;gap:10px;padding:12px;background:var(--bg-tertiary);border-radius:8px;margin-top:16px}.preview-label{font-size:12px;color:var(--mac-secondary)}.preview-tag{font-size:12px;font-weight:500;padding:4px 10px;border-radius:12px}.not-found-page{display:flex;justify-content:center;align-items:center;min-height:100vh;background:linear-gradient(135deg,#667eea,#764ba2)}.not-found-content{text-align:center;color:#fff;padding:2rem}.not-found-content h1{font-size:8rem;margin:0;font-weight:700;text-shadow:2px 2px 4px rgba(0,0,0,.3)}.not-found-content h2{font-size:2rem;margin:1rem 0}.not-found-content p{font-size:1.2rem;margin:1rem 0 2rem;opacity:.9}.back-to-chat-btn{background:#fff;color:#667eea;border:none;padding:.8rem 2rem;font-size:1rem;font-weight:600;border-radius:8px;cursor:pointer;transition:all .3s ease;box-shadow:0 4px 6px #0000001a}.back-to-chat-btn:hover{transform:translateY(-2px);box-shadow:0 6px 12px #0003}.back-to-chat-btn:active{transform:translateY(0)}