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#0006}.chat-message.bot .message{background:var(--bg-secondary);border:1px solid var(--border-primary);border-radius:var(--radius-xl);box-shadow:0 1px 3px #00000014;color:var(--text-primary)}.chat-message:hover .message{box-shadow:0 2px 8px #00000026;transform:translateY(-1px)}.chat-message.user:hover .message{box-shadow:0 2px 8px #0083c140}.chat-message.bot:hover .message{border-color:var(--border-secondary);box-shadow:0 2px 8px #0000001f}.message h1,.message h2,.message h3,.message h4,.message h5,.message h6{font-weight:var(--font-weight-semibold);line-height:var(--line-height-tight);margin:var(--space-4) 0 var(--space-2) 0}.message h1{font-size:var(--font-size-2xl)}.message h2{font-size:var(--font-size-xl)}.message h3{font-size:var(--font-size-lg)}.message h4,.message h5,.message h6{font-size:var(--font-size-base)}.message p{margin:var(--space-3) 0}.message p:first-child{margin-top:0}.message p:last-child{margin-bottom:0}.message ol,.message ul{margin:var(--space-3) 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pre.code-block{background:var(--bg-tertiary);border:1px solid var(--border-primary);border-radius:var(--radius-lg);font-family:var(--font-family-mono);font-size:var(--font-size-sm);line-height:var(--line-height-normal);margin:var(--space-4) 0;overflow-x:auto;padding:var(--space-4)}.chat-message.user .message pre.code-block{background:#ffffff1a;border-color:#fff3;color:var(--text-inverse)}.message blockquote{background:var(--bg-secondary);border-left:4px solid var(--accent-500);border-radius:0 var(--radius-md) var(--radius-md) 0;font-style:italic;margin:var(--space-4) 0;padding:var(--space-3) var(--space-4)}.chat-message.user .message blockquote{background:#ffffff1a;border-left-color:#ffffffb3}.display-math{display:block;font-size:var(--font-size-lg);line-height:var(--line-height-relaxed);margin:var(--space-4) 0;overflow-x:auto;padding:var(--space-3) 0;text-align:center}.display-math mjx-container{display:block!important;margin:var(--space-2) 0!important;text-align:center!important}.inline-math{display:inline;font-size:var(--font-size-base);line-height:var(--line-height-relaxed);margin:0 var(--space-1);vertical-align:middle}.inline-math mjx-container{display:inline!important;margin:0 var(--space-1)!important}.chat-message.user .message .math-wrapper mjx-container{color:var(--text-inverse)!important}.chat-message.bot .message .math-wrapper mjx-container{color:var(--text-primary)!important}.math-wrapper{max-width:100%;overflow-x:auto;overflow-y:hidden}.display-math+.text-wrapper,.text-wrapper+.display-math{margin-top:var(--space-4)}.text-wrapper{font-size:var(--font-size-base);line-height:var(--line-height-relaxed)}.loading-indicator{align-items:center;animation:pulse 2s cubic-bezier(.4,0,.6,1) infinite;display:inline-flex;justify-content:center;min-height:24px}.table-wrapper{background:var(--bg-primary);border:1px solid var(--border-primary);border-radius:var(--radius-lg);margin:var(--space-4) 0;overflow-x:auto}.markdown-table{background:#0000;border-collapse:collapse;font-size:var(--font-size-sm);margin:0;width:100%}.markdown-thead{background:var(--bg-secondary);border-bottom:2px solid var(--border-secondary)}.markdown-tbody{background:var(--bg-primary)}.markdown-td,.markdown-th{border-right:1px solid var(--border-primary);line-height:var(--line-height-relaxed);padding:var(--space-3) var(--space-4);text-align:left;vertical-align:top}.markdown-td:last-child,.markdown-th:last-child{border-right:none}.markdown-th{background:var(--bg-secondary);color:var(--text-primary);font-weight:var(--font-weight-semibold);position:-webkit-sticky;position:sticky;top:0;z-index:1}.markdown-td{border-bottom:1px solid var(--border-primary)}.markdown-tbody .markdown-tr:last-child .markdown-td{border-bottom:none}.markdown-tbody .markdown-tr:nth-child(2n){background:var(--bg-secondary)}.markdown-tbody .markdown-tr:hover{background:var(--bg-tertiary);transition:background-color var(--transition-fast)}.chat-message.user .table-wrapper{background:#ffffff0d;border-color:#ffffff4d}.chat-message.user .markdown-thead{background:#ffffff1a;border-bottom-color:#ffffff4d}.chat-message.user .markdown-th{background:#ffffff1a;border-right-color:#fff3;color:var(--text-inverse)}.chat-message.user .markdown-td{border-bottom-color:#fff3;border-right-color:#fff3}.chat-message.user .markdown-tbody .markdown-tr:nth-child(2n){background:#ffffff0d}.chat-message.user .markdown-tbody .markdown-tr:hover{background:#ffffff1a}[data-theme=dark] .table-wrapper{background:var(--bg-secondary);border-color:var(--border-secondary)}[data-theme=dark] .markdown-thead{background:var(--bg-tertiary);border-bottom-color:var(--border-secondary)}[data-theme=dark] .markdown-th{background:var(--bg-tertiary);border-right-color:var(--border-secondary)}[data-theme=dark] .markdown-td{border-bottom-color:var(--border-secondary);border-right-color:var(--border-secondary)}[data-theme=dark] .markdown-tbody .markdown-tr:nth-child(2n){background:var(--bg-tertiary)}[data-theme=dark] .markdown-tbody .markdown-tr:hover{background:var(--neutral-700)}@media (max-width:768px){.table-wrapper{border-radius:var(--radius-md);margin:var(--space-3) 0}.markdown-td,.markdown-th{font-size:var(--font-size-xs);padding:var(--space-2) var(--space-3)}.markdown-table{min-width:500px}}@media (max-width:480px){.markdown-td,.markdown-th{padding:var(--space-1) var(--space-2)}.markdown-table{min-width:400px}}@media (max-width:768px){.message{font-size:var(--font-size-sm);max-width:85%;padding:var(--space-3) var(--space-4)}.message h1{font-size:var(--font-size-xl)}.message h2{font-size:var(--font-size-lg)}.message h3{font-size:var(--font-size-base)}.message pre.code-block{font-size:.8rem;padding:var(--space-3)}.display-math{font-size:var(--font-size-base)}}@media (max-width:480px){.message{max-width:90%;padding:var(--space-2) var(--space-3)}.message ol,.message ul{padding-left:var(--space-4)}}@media (prefers-contrast:high){.chat-message.user .message{background:var(--neutral-900);border:2px solid var(--text-inverse)}.chat-message.bot .message{background:var(--bg-primary);border:2px solid var(--text-primary)}.message code.inline-code,.message pre.code-block{border-width:2px}}@media (prefers-reduced-motion:reduce){.chat-message{animation:none}.chat-message:hover .message{transform:none}.message a{transition:none}}@media print{.chat-message{break-inside:avoid;margin-bottom:var(--space-4);page-break-inside:avoid}.message{border:1px solid var(--border-primary);box-shadow:none}.chat-message.user .message{background:var(--neutral-100)!important;color:var(--text-primary)!important}}.chat-message.highlighted{animation:highlightPulse 2s ease-in-out}.chat-message.highlighted .message{background:var(--accent-100)!important;border-color:var(--accent-500)!important;box-shadow:0 0 0 3px #f793164d!important}.chat-message.user.highlighted .message{background:#ffffff4d!important;box-shadow:0 0 0 3px #ffffff80!important}@keyframes highlightPulse{0%,to{transform:scale(1)}50%{transform:scale(1.02)}}.message mark{background:var(--accent-200);border-radius:var(--radius-sm);color:var(--text-primary);font-weight:var(--font-weight-medium);padding:2px 4px}.chat-message.user .message mark{background:#fff6;color:var(--text-inverse)}[data-theme=dark] .chat-message.bot .message{background:var(--bg-secondary);border-color:var(--border-primary)}[data-theme=dark] .chat-message.bot .message:after{border-right-color:var(--bg-secondary)}[data-theme=dark] .message code.inline-code,[data-theme=dark] .message pre.code-block{background:var(--bg-tertiary);border-color:var(--border-secondary);color:var(--text-primary)}[data-theme=dark] .message blockquote{background:var(--bg-tertiary);border-left-color:var(--accent-500)}.preset-questions-container{align-items:stretch;background:#0000;margin-bottom:var(--space-4);min-height:0;overflow:hidden;padding:0 var(--space-6);position:relative}.preset-questions-container,.preset-questions-vertical{display:flex;flex:1 1;flex-direction:column;height:100%;justify-content:flex-start;width:100%}.preset-questions-vertical{align-items:center;gap:var(--space-3);max-height:100%;overflow-y:auto;padding:var(--space-2) 0 var(--space-3) 0;scrollbar-color:var(--border-primary) #0000;scrollbar-width:thin}.preset-questions-vertical::-webkit-scrollbar{width:6px}.preset-questions-vertical::-webkit-scrollbar-track{background:#0000}.preset-questions-vertical::-webkit-scrollbar-thumb{background:var(--border-primary);border-radius:3px}.preset-questions-vertical::-webkit-scrollbar-thumb:hover{background:var(--border-secondary)}.preset-question-button{align-items:center;background:var(--bg-secondary);border:2px solid var(--border-primary);border-radius:var(--radius-xl);color:var(--text-secondary);cursor:pointer;display:inline-flex;font-family:inherit;font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);justify-content:center;line-height:var(--line-height-normal);max-width:90%;min-height:48px;overflow:hidden;padding:var(--space-3) var(--space-4);position:relative;text-align:center;transition:all var(--transition-normal);white-space:normal}.preset-question-button:before{background:linear-gradient(135deg,var(--accent-500) 0,var(--accent-600) 100%);bottom:0;content:"";left:0;opacity:0;position:absolute;right:0;top:0;transition:opacity var(--transition-normal)}.preset-question-button:after{background:linear-gradient(90deg,#0000,#fff3,#0000);content:"";height:100%;left:-100%;position:absolute;top:0;transition:left var(--transition-slow);width:100%}.preset-question-button:hover{background:var(--accent-500);border-color:var(--accent-600);box-shadow:0 4px 12px #f78d1e4d;color:#fff!important;transform:translateY(-2px)}.preset-question-button:hover .preset-question-text{color:#fff!important;z-index:10}.preset-question-button:hover:before{opacity:0}.preset-question-button:hover:after{left:100%}.preset-question-button:active{transform:translateY(0)}.preset-question-button:focus-visible{outline:2px solid var(--border-focus);outline-offset:2px}.preset-question-text{word-wrap:break-word;color:inherit;-webkit-hyphens:auto;hyphens:auto;position:relative;text-align:center;z-index:10}.preset-question-button.featured{background:linear-gradient(135deg,var(--primary-100) 0,var(--primary-200) 100%);border-color:var(--primary-300);color:var(--primary-800);font-weight:var(--font-weight-semibold)}.preset-question-button.featured:hover{background:linear-gradient(135deg,var(--primary-700) 0,var(--primary-800) 100%);border-color:var(--primary-700);color:#fff}.preset-question-button.category-general{border-left:4px solid var(--primary-700)}.preset-question-button.category-technical{border-left:4px solid var(--secondary-500)}.preset-question-button.category-creative{border-left:4px solid var(--accent-500)}.preset-question-button.category-analysis{border-left:4px solid var(--error-500)}.preset-questions-container:after,.preset-questions-container:before{bottom:0;content:"";pointer-events:none;position:absolute;top:0;transition:opacity var(--transition-normal);width:40px;z-index:2}.preset-questions-container:before{background:linear-gradient(to right,var(--bg-primary) 0,#fff0 100%);left:var(--space-6)}.preset-questions-container:after{background:linear-gradient(to left,var(--bg-primary) 0,#fff0 100%);right:var(--space-6)}[data-theme=dark] .preset-questions-container:before{background:linear-gradient(to right,var(--bg-primary) 0,#1a1a1a00 100%)}[data-theme=dark] .preset-questions-container:after{background:linear-gradient(to left,var(--bg-primary) 0,#1a1a1a00 100%)}.preset-questions-header{align-items:center;display:flex;justify-content:space-between;margin-bottom:var(--space-4);padding:0 var(--space-8)}.preset-questions-title{color:var(--text-primary);font-size:var(--font-size-lg);font-weight:var(--font-weight-semibold);margin:0}.preset-questions-subtitle{color:var(--text-secondary);font-size:var(--font-size-sm);margin-top:var(--space-1)}.category-filter{display:flex;gap:var(--space-2)}.category-filter-button{background:var(--bg-tertiary);border:1px solid var(--border-primary);border-radius:var(--radius-full);color:var(--text-tertiary);cursor:pointer;font-size:var(--font-size-xs);font-weight:var(--font-weight-medium);padding:var(--space-1) var(--space-3);transition:all var(--transition-normal)}.category-filter-button:hover{background:var(--bg-secondary);border-color:var(--border-secondary);color:var(--text-secondary)}.category-filter-button.active{background:var(--accent-500);border-color:var(--accent-500);color:var(--text-inverse)}.preset-questions-loading{align-items:center;color:var(--text-tertiary);display:flex;justify-content:center;padding:var(--space-8)}.preset-questions-loading-spinner{animation:spin 1s linear infinite;border:2px solid var(--border-primary);border-radius:var(--radius-full);border-top-color:var(--accent-500);height:24px;margin-right:var(--space-3);width:24px}.preset-questions-empty{color:var(--text-tertiary);padding:var(--space-8);text-align:center}.preset-questions-empty-title{color:var(--text-secondary);font-size:var(--font-size-lg);font-weight:var(--font-weight-medium);margin-bottom:var(--space-2)}.preset-questions-empty-description{font-size:var(--font-size-sm);line-height:var(--line-height-relaxed)}@media (max-width:768px){.preset-questions-container{padding:0 var(--space-5)}.preset-questions-container:before{left:var(--space-5);width:30px}.preset-questions-container:after{right:var(--space-5);width:30px}.preset-question-button{font-size:var(--font-size-xs);max-width:95%;padding:var(--space-2) var(--space-4)}.preset-questions-header{align-items:flex-start;flex-direction:column;gap:var(--space-3);padding:0 var(--space-5)}.category-filter{align-self:stretch;justify-content:center}}@media (max-width:480px){.preset-questions-container{padding:0 var(--space-4)}.preset-questions-container:before{left:var(--space-4);width:20px}.preset-questions-container:after{right:var(--space-4);width:20px}.preset-question-button{max-width:98%;padding:var(--space-2) var(--space-3)}.preset-questions-header{padding:0 var(--space-4)}.category-filter{flex-wrap:wrap}}@media (prefers-contrast:high){.preset-question-button,.preset-question-button.featured{border-width:3px}.category-filter-button{border-width:2px}}@media (prefers-reduced-motion:reduce){.preset-question-button{transition:none}.preset-question-button:hover{transform:none}.preset-question-button:after{transition:none}.preset-questions-loading-spinner{animation:none}}@media print{.preset-questions-container{display:none}}.chat-history-overlay{align-items:center;animation:overlayFadeIn .2s ease-out;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background:#00000080;bottom:0;display:flex;justify-content:center;left:0;padding:var(--space-4);position:fixed;right:0;top:0;z-index:1000}.chat-history-modal{animation:modalSlideIn .3s cubic-bezier(.16,1,.3,1);background:var(--bg-primary);border:1px solid var(--border-primary);border-radius:var(--radius-2xl);box-shadow:var(--shadow-xl);display:flex;flex-direction:column;height:80vh;max-height:80vh;max-width:400px;min-width:300px;overflow:hidden;width:100%}@keyframes modalSlideIn{0%{opacity:0;transform:translateY(-20px) scale(.95)}to{opacity:1;transform:translateY(0) scale(1)}}.chat-history-header{align-items:center;background:linear-gradient(135deg,var(--primary-700) 0,var(--primary-800) 100%);color:var(--text-inverse);display:flex;flex-shrink:0;justify-content:space-between;padding:var(--space-6) var(--space-8);position:relative}.chat-history-header:before{background:linear-gradient(135deg,#ffffff1a,#ffffff0d 50%,#ffffff1a);bottom:0;content:"";left:0;pointer-events:none;position:absolute;right:0;top:0}.chat-history-title{font-size:var(--font-size-xl);font-weight:var(--font-weight-semibold);margin:0;position:relative;z-index:1}.chat-history-close{align-items:center;background:#ffffff1a;border:1px solid #fff3;border-radius:var(--radius-lg);color:var(--text-inverse);cursor:pointer;display:flex;height:40px;justify-content:center;position:relative;transition:all var(--transition-normal);width:40px;z-index:1}.chat-history-close:hover{background:#fff3;transform:scale(1.05)}.chat-history-content{display:flex;flex:1 1;flex-direction:column;min-height:0;overflow:hidden}.chat-history-actions{background:var(--bg-secondary);border-bottom:1px solid var(--border-primary);display:flex;flex-direction:column;flex-shrink:0;gap:var(--space-3);padding:var(--space-4) var(--space-5)}.new-chat-button{align-items:center;background:var(--accent-500);border:none;border-radius:var(--radius-lg);color:var(--text-inverse);cursor:pointer;display:flex;font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);gap:var(--space-2);justify-content:center;padding:var(--space-3) var(--space-4);transition:all var(--transition-normal);width:100%}.new-chat-button:hover{background:var(--accent-600);box-shadow:var(--shadow-md);transform:translateY(-1px)}.new-chat-button:active{transform:translateY(0)}.clear-history-button{align-items:center;background:var(--error-500);border:none;border-radius:var(--radius-lg);color:var(--text-inverse);cursor:pointer;display:flex;font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);gap:var(--space-2);justify-content:center;padding:var(--space-3) var(--space-4);transition:all var(--transition-normal);width:100%}.clear-history-button:hover{background:var(--error-600);box-shadow:var(--shadow-md);transform:translateY(-1px)}.clear-history-button:active{transform:translateY(0)}.history-search{background:var(--bg-secondary);border-bottom:1px solid var(--border-primary);flex-shrink:0;padding:var(--space-4) var(--space-5)}.history-search-input{background:var(--bg-primary);border:2px solid var(--border-primary);border-radius:var(--radius-lg);color:var(--text-primary);font-family:inherit;font-size:var(--font-size-sm);outline:none;padding:var(--space-2) var(--space-3);transition:all var(--transition-normal);width:100%}.history-search-input::placeholder{color:var(--text-tertiary);font-style:italic}.history-search-input:focus{border-color:var(--border-focus);box-shadow:0 0 0 4px #f78d1e1a}.chat-history-list{flex:1 1;max-height:100%;min-height:0;overflow-x:hidden;overflow-y:auto;padding:var(--space-2) 0;scroll-behavior:smooth;scrollbar-color:var(--border-secondary) var(--bg-tertiary);scrollbar-width:thin}.chat-history-list::-webkit-scrollbar{width:12px}.chat-history-list::-webkit-scrollbar-track{background:var(--bg-tertiary);border-radius:var(--radius-full)}.chat-history-list::-webkit-scrollbar-thumb{background:var(--border-secondary);border:2px solid var(--bg-tertiary);border-radius:var(--radius-full)}.chat-history-list::-webkit-scrollbar-thumb:hover{background:var(--text-secondary)}.history-item{align-items:center;border:1px solid #0000;border-radius:var(--radius-lg);cursor:pointer;display:flex;margin:var(--space-1) var(--space-2);padding:var(--space-3) var(--space-5);position:relative;transition:all var(--transition-normal)}.history-item:hover{background:var(--bg-secondary);border-color:var(--border-primary);transform:translateX(4px)}.history-item.active{background:var(--primary-100);border-color:var(--primary-300);color:var(--primary-800)}[data-theme=dark] .history-item.active{background:var(--primary-900);border-color:var(--primary-700);color:var(--primary-200)}[data-theme=dark] .history-item{color:var(--text-primary)}[data-theme=dark] .history-item:hover{background:var(--bg-tertiary);border-color:var(--border-secondary)}[data-theme=dark] .history-item-title{color:var(--text-primary)}[data-theme=dark] .history-item-date,[data-theme=dark] .history-item-preview{color:var(--text-secondary)}[data-theme=dark] .history-item-count{background:var(--bg-secondary);color:var(--text-secondary)}.history-item:active{transform:translateX(2px)}.history-item-content{flex:1 1;min-width:0}.history-item-title{color:var(--text-primary);font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);margin-bottom:var(--space-1)}.history-item-preview,.history-item-title{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.history-item-preview{color:var(--text-tertiary);font-size:var(--font-size-xs);line-height:var(--line-height-normal)}.history-item-meta{align-items:center;display:flex;justify-content:space-between;margin-top:var(--space-1)}.history-item-date{font-style:italic}.history-item-count,.history-item-date{color:var(--text-tertiary);font-size:var(--font-size-xs)}.history-item-count{background:var(--bg-tertiary);border-radius:var(--radius-sm);font-weight:var(--font-weight-medium);padding:var(--space-1) var(--space-2)}.history-item-actions{align-items:center;display:flex;gap:var(--space-1);margin-left:var(--space-2);opacity:0;transition:opacity var(--transition-normal)}.history-item:hover .history-item-actions{opacity:1}.history-action-button{align-items:center;background:var(--bg-tertiary);border:1px solid var(--border-primary);border-radius:var(--radius-md);color:var(--text-secondary);cursor:pointer;display:flex;height:28px;justify-content:center;transition:all var(--transition-normal);width:28px}.history-action-button:hover{background:var(--bg-primary);color:var(--text-primary);transform:scale(1.05)}.history-action-button.delete:hover{background:var(--error-50);border-color:var(--error-500);color:var(--error-600)}.history-empty{color:var(--text-tertiary);padding:var(--space-12) var(--space-5);text-align:center}.history-empty-icon{height:48px;margin:0 auto var(--space-4);opacity:.5;width:48px}.history-empty-title{color:var(--text-secondary);font-size:var(--font-size-lg);font-weight:var(--font-weight-medium);margin-bottom:var(--space-2)}.history-empty-description{font-size:var(--font-size-sm);line-height:var(--line-height-relaxed)}.history-loading{color:var(--text-tertiary);padding:var(--space-8) var(--space-5);text-align:center}.history-loading-spinner{animation:spin 1s linear infinite;border:3px solid var(--border-primary);border-radius:var(--radius-full);border-top-color:var(--accent-500);height:32px;margin:0 auto var(--space-4);width:32px}.history-stats{background:var(--bg-tertiary);border-top:1px solid var(--border-primary);color:var(--text-tertiary);flex-shrink:0;font-size:var(--font-size-xs);padding:var(--space-4) var(--space-5);text-align:center}@media (max-width:768px){.chat-history-modal{margin:var(--space-4);max-width:none}.chat-history-header{padding:var(--space-4) var(--space-5)}.chat-history-title{font-size:var(--font-size-lg)}.chat-history-content{padding:var(--space-4) var(--space-5)}.history-item{padding:var(--space-3) var(--space-4)}}@media (max-width:480px){.chat-history-overlay{padding:var(--space-2)}.chat-history-content,.chat-history-header{padding:var(--space-3) var(--space-4)}}@media (prefers-contrast:high){.chat-history-modal,.history-item{border-width:2px}.history-search-input{border-width:3px}.new-chat-button{border:2px solid var(--text-inverse)}}@media (prefers-reduced-motion:reduce){.chat-history-modal,.chat-history-overlay{animation:none}.history-item:hover,.new-chat-button:hover{transform:none}.history-loading-spinner{animation:none}}.typing-indicator{justify-content:flex-start;min-height:24px;padding:var(--space-2) var(--space-3)}.typing-dots,.typing-indicator{align-items:center;display:flex}.typing-dots{gap:3px}.typing-dot{animation:typingPulse 1.4s ease-in-out infinite;background:var(--text-tertiary);border-radius:var(--radius-full);height:2px;opacity:.6;width:2px}.typing-dot:first-child{animation-delay:0ms}.typing-dot:nth-child(2){animation-delay:.2s}.typing-dot:nth-child(3){animation-delay:.4s}@keyframes typingPulse{0%,60%,to{opacity:.6;transform:scale(1)}30%{opacity:1;transform:scale(1.5)}}.typing-indicator.wave .typing-dot{animation:typingWave 1.4s ease-in-out infinite}@keyframes typingWave{0%,60%,to{opacity:.4;transform:translateY(0)}30%{opacity:1;transform:translateY(-4px)}}.typing-indicator:before{animation:breathe 2s ease-in-out infinite;background:linear-gradient(90deg,#0000,#f78d1e0d 50%,#0000);border-radius:inherit;bottom:0;content:"";left:0;pointer-events:none;position:absolute;right:0;top:0}@keyframes breathe{0%,to{opacity:0}50%{opacity:1}}[data-theme=dark] .typing-dot{background:var(--text-secondary)}[data-theme=dark] .typing-indicator:before{background:linear-gradient(90deg,#0000,#f78d1e1a 50%,#0000)}@media (prefers-contrast:high){.typing-dot{background:var(--text-primary);border:1px solid var(--text-primary)}}@media (prefers-reduced-motion:reduce){.typing-dot{animation:none;opacity:.6}.typing-indicator:before{animation:none;opacity:0}}.typing-indicator.small .typing-dot{height:6px;width:6px}.typing-indicator.large .typing-dot{height:10px;width:10px}@media (max-width:768px){.typing-indicator{min-height:40px;padding:var(--space-3) var(--space-4)}.typing-dot{height:6px;width:6px}}@media (max-width:480px){.typing-indicator{min-height:36px;padding:var(--space-2) var(--space-3)}.typing-dot{height:5px;width:5px}.typing-dots{gap:var(--space-1)}}.search-overlay{align-items:flex-start;animation:overlayFadeIn .2s ease-out;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background:#00000080;bottom:0;display:flex;justify-content:center;left:0;padding:var(--space-8) var(--space-4);position:fixed;right:0;top:0;z-index:1000}.search-bar{animation:searchSlideIn .3s cubic-bezier(.16,1,.3,1);background:var(--bg-secondary);border:1px solid var(--border-primary);border-radius:var(--radius-xl);box-shadow:var(--shadow-xl);max-width:600px;overflow:hidden;width:100%}@keyframes searchSlideIn{0%{opacity:0;transform:translateY(-20px) scale(.95)}to{opacity:1;transform:translateY(0) scale(1)}}.search-input-container{align-items:center;background:var(--bg-secondary);border-bottom:1px solid var(--border-primary);display:flex;padding:var(--space-4)}.search-icon{color:var(--text-secondary);margin-right:var(--space-3)}.search-input-container input{background:var(--bg-primary);border:2px solid var(--border-primary);border-radius:var(--radius-lg);color:var(--text-primary);flex:1 1;font-family:inherit;font-size:var(--font-size-base);outline:none;padding:var(--space-3) var(--space-4);transition:all var(--transition-normal)}.search-input-container input::placeholder{color:var(--text-secondary)}.search-input-container input:focus{border-color:var(--accent-500);box-shadow:0 0 0 3px #f78d1e1a}.search-controls{align-items:center;display:flex;gap:var(--space-2);margin-left:var(--space-3)}.search-count{color:var(--text-secondary);font-size:var(--font-size-sm);white-space:nowrap}.close-search,.nav-button{align-items:center;background:var(--bg-tertiary);border:1px solid var(--border-primary);border-radius:var(--radius-md);color:var(--text-secondary);cursor:pointer;display:flex;height:32px;justify-content:center;transition:all var(--transition-normal);width:32px}.close-search:hover,.nav-button:hover{background:var(--accent-50);border-color:var(--accent-500);color:var(--accent-600)}.close-search:hover{background:#fef2f2;border-color:#ef4444;color:#dc2626}.search-results{max-height:400px;overflow-y:auto;padding:var(--space-2)}.search-results::-webkit-scrollbar{width:6px}.search-results::-webkit-scrollbar-track{background:#0000}.search-results::-webkit-scrollbar-thumb{background:var(--border-secondary);border-radius:var(--radius-xl)}.search-results::-webkit-scrollbar-thumb:hover{background:var(--text-secondary)}.search-result{border:1px solid #0000;border-radius:var(--radius-lg);cursor:pointer;margin:var(--space-1) 0;padding:var(--space-3) var(--space-4);transition:all var(--transition-normal)}.search-result:hover{background:var(--bg-tertiary);border-color:var(--border-primary)}.search-result.active{background:var(--accent-50);border-color:var(--accent-500)}.result-meta{align-items:center;display:flex;margin-bottom:var(--space-2)}.result-from{border-radius:var(--radius-sm);font-size:var(--font-size-xs);font-weight:var(--font-weight-medium);letter-spacing:.5px;padding:var(--space-1) var(--space-2);text-transform:uppercase}.result-from.user{background:var(--primary-100);color:var(--primary-800)}.result-from.bot{background:var(--neutral-100);color:var(--neutral-700)}.result-preview{color:var(--text-primary);font-size:var(--font-size-sm);line-height:var(--line-height-relaxed)}.result-preview mark{background:var(--accent-200);border-radius:var(--radius-sm);color:var(--text-primary);font-weight:var(--font-weight-medium);padding:2px 4px}[data-theme=dark] .result-preview mark{background:var(--accent-400);color:var(--neutral-900);font-weight:var(--font-weight-semibold)}.search-empty{color:var(--text-tertiary);padding:var(--space-12) var(--space-6);text-align:center}.search-empty-icon{height:48px;margin:0 auto var(--space-4);opacity:.5;width:48px}.search-empty-title{color:var(--text-secondary);font-size:var(--font-size-lg);font-weight:var(--font-weight-medium);margin-bottom:var(--space-2)}.search-empty-description{font-size:var(--font-size-sm);line-height:var(--line-height-relaxed)}.search-loading{color:var(--text-tertiary);padding:var(--space-8) var(--space-6);text-align:center}.search-loading-spinner{animation:spin 1s linear infinite;border:3px solid var(--border-primary);border-radius:var(--radius-full);border-top-color:var(--accent-500);height:32px;margin:0 auto var(--space-4);width:32px}@keyframes spin{to{transform:rotate(1turn)}}.search-stats{background:var(--bg-secondary);text-align:center}.search-shortcuts,.search-stats{border-top:1px solid var(--border-primary);color:var(--text-tertiary);font-size:var(--font-size-xs);padding:var(--space-3) var(--space-6)}.search-shortcuts{align-items:center;background:var(--bg-tertiary);display:flex;gap:var(--space-4);justify-content:center}.search-shortcut{align-items:center;display:flex;gap:var(--space-1)}.search-shortcut-key{background:var(--bg-primary);border:1px solid var(--border-primary);border-radius:var(--radius-sm);font-family:var(--font-family-mono);font-size:.7rem;font-weight:var(--font-weight-medium);padding:var(--space-1) var(--space-2)}@media (max-width:768px){.search-overlay{padding:var(--space-4)}.search-container{max-width:none}.search-header{padding:var(--space-3) var(--space-4)}.search-input{font-size:var(--font-size-sm);padding:var(--space-2) var(--space-3)}.search-close{height:36px;width:36px}.search-result-item{padding:var(--space-3) var(--space-4)}.search-shortcuts{flex-direction:column;gap:var(--space-2)}}@media (max-width:480px){.search-overlay{padding:var(--space-2)}.search-header{padding:var(--space-2) var(--space-3)}.search-result-meta{align-items:flex-start;flex-direction:column;gap:var(--space-1)}}@media (prefers-contrast:high){.search-container{border-width:2px}.search-input{border-width:3px}.search-result-item:hover{border-width:2px}.search-highlight{border:1px solid var(--warning-600)}}@media (prefers-reduced-motion:reduce){.search-container,.search-overlay{animation:none}.search-result-item:hover{transform:none}.search-loading-spinner{animation:none}}.settings-overlay{align-items:center;animation:overlayFadeIn .2s ease-out;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background:#00000080;bottom:0;display:flex;justify-content:center;left:0;padding:var(--space-4);position:fixed;right:0;top:0;z-index:1000}@keyframes overlayFadeIn{0%{opacity:0}to{opacity:1}}.settings-panel{animation:panelSlideIn .3s cubic-bezier(.16,1,.3,1);background:var(--bg-primary);border:1px solid var(--border-primary);border-radius:var(--radius-2xl);box-shadow:var(--shadow-xl);max-height:80vh;max-width:500px;overflow:hidden;width:100%}@keyframes panelSlideIn{0%{opacity:0;transform:translateY(-20px) scale(.95)}to{opacity:1;transform:translateY(0) scale(1)}}.settings-header{align-items:center;background:var(--bg-secondary);border-bottom:1px solid var(--border-primary);display:flex;justify-content:space-between;padding:var(--space-4) var(--space-6)}.settings-header h3{color:var(--text-primary);font-size:var(--font-size-lg);font-weight:var(--font-weight-semibold);margin:0}.close-button{align-items:center;background:var(--bg-tertiary);border:1px solid var(--border-primary);border-radius:var(--radius-md);color:var(--text-secondary);cursor:pointer;display:flex;height:32px;justify-content:center;transition:all var(--transition-normal);width:32px}.close-button:hover{background:#fef2f2;border-color:#ef4444;color:#dc2626}.settings-content{max-height:calc(80vh - 120px);overflow-y:auto;padding:var(--space-6) var(--space-8)}.settings-content::-webkit-scrollbar{width:6px}.settings-content::-webkit-scrollbar-track{background:#0000}.settings-content::-webkit-scrollbar-thumb{background:var(--border-secondary);border-radius:var(--radius-full)}.settings-content::-webkit-scrollbar-thumb:hover{background:var(--text-tertiary)}.setting-group{margin-bottom:var(--space-6)}.setting-group:last-child{margin-bottom:0}.setting-group h4{color:var(--text-primary);font-size:var(--font-size-lg);font-weight:var(--font-weight-semibold);margin-bottom:var(--space-4);padding-bottom:var(--space-2)}.setting-group h4,.setting-item{border-bottom:1px solid var(--border-primary)}.setting-item{align-items:center;display:flex;justify-content:space-between;padding:var(--space-3) 0}.setting-item:last-child{border-bottom:none}.setting-item label{align-items:center;color:var(--text-primary);cursor:pointer;display:flex;font-size:var(--font-size-base);font-weight:var(--font-weight-medium);gap:var(--space-2)}.setting-item select{background:var(--bg-primary);border:1px solid var(--border-primary);border-radius:var(--radius-md);color:var(--text-primary);cursor:pointer;font-size:var(--font-size-sm);padding:var(--space-2) var(--space-3)}.setting-item select:focus{border-color:var(--accent-500);box-shadow:0 0 0 2px #f78d1e1a;outline:none}.setting-item input[type=checkbox]{accent-color:var(--accent-500);cursor:pointer;height:16px;width:16px}.settings-control{flex-shrink:0}.toggle-switch{background:var(--neutral-300);border:2px solid #0000;border-radius:var(--radius-full);cursor:pointer;height:28px;position:relative;transition:all var(--transition-normal);width:52px}.toggle-switch.active{background:var(--accent-500)}.toggle-switch:hover{transform:scale(1.05)}.toggle-switch:focus-visible{border-color:var(--border-focus);outline:none}.toggle-switch-handle{background:var(--bg-primary);border-radius:var(--radius-full);box-shadow:var(--shadow-sm);height:20px;left:2px;position:absolute;top:2px;transition:all var(--transition-normal);width:20px}.toggle-switch.active .toggle-switch-handle{transform:translateX(24px)}.settings-select{background:var(--bg-primary);border:2px solid var(--border-primary);border-radius:var(--radius-lg);color:var(--text-primary);cursor:pointer;font-family:inherit;font-size:var(--font-size-sm);min-width:140px;outline:none;padding:var(--space-2) var(--space-3);transition:all var(--transition-normal)}.settings-select:focus{border-color:var(--border-focus);box-shadow:0 0 0 4px #f78d1e1a}.settings-select:hover{border-color:var(--border-secondary)}.settings-button-group{border:2px solid var(--border-primary);border-radius:var(--radius-lg);display:flex;gap:var(--space-2);overflow:hidden}.settings-button-group button{background:var(--bg-secondary);border:none;color:var(--text-secondary);cursor:pointer;flex:1 1;font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);padding:var(--space-2) var(--space-3);transition:all var(--transition-normal)}.settings-button-group button:hover{background:var(--bg-tertiary);color:var(--text-primary)}.settings-button-group button.active{background:var(--accent-500);color:var(--text-inverse)}.settings-button-group button:focus-visible{outline:2px solid var(--border-focus);outline-offset:-2px}.settings-range{width:120px}.settings-range input[type=range]{-webkit-appearance:none;appearance:none;background:var(--border-primary);border-radius:var(--radius-full);cursor:pointer;height:6px;outline:none;width:100%}.settings-range input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;background:var(--accent-500);border:2px solid var(--bg-primary);border-radius:var(--radius-full);box-shadow:var(--shadow-sm);cursor:pointer;height:20px;-webkit-transition:all var(--transition-normal);transition:all var(--transition-normal);width:20px}.settings-range input[type=range]::-webkit-slider-thumb:hover{box-shadow:var(--shadow-md);transform:scale(1.1)}.settings-range input[type=range]::-moz-range-thumb{background:var(--accent-500);border:2px solid var(--bg-primary);border-radius:var(--radius-full);box-shadow:var(--shadow-sm);cursor:pointer;height:20px;-moz-transition:all var(--transition-normal);transition:all var(--transition-normal);width:20px}.settings-color-picker{align-items:center;display:flex;gap:var(--space-2)}.color-preview{border:2px solid var(--border-primary);border-radius:var(--radius-lg);cursor:pointer;height:32px;transition:all var(--transition-normal);width:32px}.color-preview:hover{border-color:var(--border-secondary);transform:scale(1.1)}.color-input{height:0;opacity:0;pointer-events:none;position:absolute;width:0}.setting-actions{display:flex;flex-wrap:wrap;gap:var(--space-3);margin-top:var(--space-4)}.action-button{align-items:center;background:var(--bg-secondary);border:2px solid var(--border-primary);border-radius:var(--radius-lg);color:var(--text-primary);cursor:pointer;display:inline-flex;font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);justify-content:center;line-height:1.4;min-width:140px;outline:none;padding:var(--space-3) var(--space-5);position:relative;text-align:center;transition:all var(--transition-normal);white-space:nowrap}.action-button:hover{background:var(--accent-500);border-color:var(--accent-600);box-shadow:var(--shadow-md);color:var(--text-inverse);transform:translateY(-1px)}.action-button:active{transform:translateY(0)}.action-button.danger{background:var(--error-50);border-color:var(--error-500);color:var(--error-600)}.action-button.danger:hover{background:var(--error-500);border-color:var(--error-600);color:var(--text-inverse)}.file-input-label{align-items:center;background:var(--bg-secondary);border:2px solid var(--border-primary);border-radius:var(--radius-lg);color:var(--text-primary);cursor:pointer;display:inline-flex;font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);justify-content:center;line-height:1.4;min-width:140px;outline:none;padding:var(--space-3) var(--space-5);position:relative;text-align:center;transition:all var(--transition-normal);white-space:nowrap}.file-input-label:hover{background:var(--accent-500);border-color:var(--accent-600);box-shadow:var(--shadow-md);color:var(--text-inverse);transform:translateY(-1px)}.file-input-label:active{transform:translateY(0)}.file-input-label input[type=file]{left:-9999px;opacity:0;pointer-events:none;position:absolute}[data-theme=dark] .file-input-label{background:var(--bg-tertiary);border-color:var(--border-secondary)}[data-theme=dark] .file-input-label:hover{background:var(--accent-500);border-color:var(--accent-400)}[data-theme=dark] .action-button{background:var(--bg-tertiary);border-color:var(--border-secondary)}[data-theme=dark] .action-button:hover{background:var(--accent-500);border-color:var(--accent-400)}[data-theme=dark] .action-button.danger{background:#ef44441a;border-color:#ef44444d;color:#fca5a5}[data-theme=dark] .action-button.danger:hover{background:#dc2626;border-color:#b91c1c;color:var(--text-inverse)}@media (max-width:768px){.settings-panel{margin:var(--space-4);max-width:none}.settings-header{padding:var(--space-4) var(--space-5)}.settings-title{font-size:var(--font-size-lg)}.settings-actions,.settings-content{padding:var(--space-4) var(--space-5)}.settings-actions,.settings-item{flex-direction:column}.settings-item{align-items:flex-start;gap:var(--space-3)}.settings-item-info{margin-right:0}.settings-control{align-self:stretch}.settings-select{width:100%}}@media (max-width:480px){.settings-overlay{padding:var(--space-2)}.settings-actions,.settings-content,.settings-header{padding:var(--space-3) var(--space-4)}}@media (prefers-contrast:high){.settings-panel{border-width:2px}.settings-button,.settings-select,.toggle-switch{border-width:3px}}@media 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