@import"https://fonts.googleapis.com/css2?family=Segoe+UI:wght@400;500;600;700&display=swap";@import"https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.0/css/all.min.css";.header{position:fixed;top:0;height:70px;background:var(--color-surface);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-bottom:1px solid var(--color-border);z-index:999;transition:all .3s cubic-bezier(.4,0,.2,1)}.header.dark{background:#0f172af2;border-bottom-color:var(--color-border);box-shadow:var(--shadow-glass)}.header.light{background:#fffffff2;border-bottom-color:var(--color-border);box-shadow:var(--shadow-lg)}.header-content{height:100%;display:flex;align-items:center;justify-content:space-between;padding:0 2rem;max-width:100%}.header-left{display:flex;align-items:center;gap:1rem;flex-shrink:0}.mobile-sidebar-toggle{display:none;background:var(--color-backgroundSecondary);border:1px solid var(--color-border);color:var(--color-textSecondary);cursor:pointer;padding:.625rem;border-radius:.5rem;transition:all .3s cubic-bezier(.4,0,.2,1);width:40px;height:40px;align-items:center;justify-content:center}.mobile-sidebar-toggle:hover{background:var(--color-primary);color:var(--color-textInverse);border-color:var(--color-primary);transform:translateY(-1px);box-shadow:0 4px 12px #0066ff4d}.mobile-sidebar-toggle:active{transform:translateY(0);box-shadow:0 2px 6px #06f3}.mobile-sidebar-toggle:focus{outline:none;box-shadow:0 0 0 3px #0066ff4d}@media (max-width: 768px){.mobile-sidebar-toggle{display:flex}}.sidebar-toggle{display:flex;background:var(--color-backgroundSecondary);border:1px solid var(--color-border);color:var(--color-textSecondary);cursor:pointer;padding:.625rem;border-radius:.5rem;transition:all .3s cubic-bezier(.4,0,.2,1);width:40px;height:40px;align-items:center;justify-content:center;position:relative;overflow:hidden}.sidebar-toggle:before{content:"";position:absolute;inset:0;background:linear-gradient(135deg,#ffffff1a,#ffffff0d);border-radius:.5rem;opacity:0;transition:opacity .3s ease}.sidebar-toggle:hover:before{opacity:1}.sidebar-toggle:hover{background:var(--color-primary);color:var(--color-textInverse);border-color:var(--color-primary);transform:translateY(-1px);box-shadow:0 4px 12px #0066ff4d}.sidebar-toggle:active{transform:translateY(0);box-shadow:0 2px 6px #06f3}.sidebar-toggle:focus{outline:none;box-shadow:0 0 0 3px #0066ff4d}.brand{display:flex;align-items:center;gap:.75rem}.brand-icon{width:40px;height:40px;background:linear-gradient(135deg,var(--color-primary),var(--color-secondary));border-radius:.75rem;display:flex;align-items:center;justify-content:center;position:relative;box-shadow:var(--shadow-glow);cursor:pointer}.medical-cross{position:relative;width:20px;height:20px}.cross-horizontal,.cross-vertical{position:absolute;background:var(--color-textInverse);border-radius:1px}.cross-horizontal{width:16px;height:3px;top:50%;left:50%;transform:translate(-50%,-50%)}.cross-vertical{width:3px;height:16px;top:50%;left:50%;transform:translate(-50%,-50%)}.brand-text{display:flex;flex-direction:column}.brand-title{font-size:1.5rem;font-weight:700;color:var(--color-textPrimary);margin:0;line-height:1;background:linear-gradient(135deg,var(--color-primary),var(--color-secondary));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.brand-subtitle{font-size:.75rem;color:var(--color-textTertiary);font-weight:500;text-transform:uppercase;letter-spacing:.05em}.header-center{flex:1;max-width:500px;margin:0 2rem}.quick-search{position:relative;display:flex;align-items:center;background:var(--color-backgroundSecondary);border:1px solid var(--color-border);border-radius:2rem;padding:.5rem 1rem;transition:all .2s ease}.quick-search:focus-within{border-color:var(--color-primary);box-shadow:0 0 0 3px #0066ff1a;background:var(--color-surface)}.search-input-container{display:flex;align-items:center;flex:1}.search-icon{color:var(--color-textTertiary);flex-shrink:0;margin-right:.75rem}.search-input{flex:1;background:none;border:none;outline:none;color:var(--color-textPrimary);font-size:.875rem;font-weight:500}.search-input::placeholder{color:var(--color-textTertiary)}.search-submit-btn{background:linear-gradient(135deg,var(--color-primary),var(--color-secondary));border:none;border-radius:50%;width:32px;height:32px;display:flex;align-items:center;justify-content:center;color:#fff;cursor:pointer;transition:all .3s cubic-bezier(.4,0,.2,1);flex-shrink:0;box-shadow:0 2px 8px #06f3;position:relative;overflow:hidden;z-index:1}.search-submit-btn svg{position:relative;z-index:2;color:#fff;fill:currentColor}.search-submit-btn:before{content:"";position:absolute;inset:0;background:linear-gradient(135deg,#fff3,#ffffff1a);border-radius:50%;opacity:0;transition:opacity .3s ease;z-index:1}.search-submit-btn:hover:not(:disabled):before{opacity:1}.search-submit-btn:hover:not(:disabled){transform:translateY(-1px);box-shadow:0 4px 16px #06f6}.search-submit-btn:active:not(:disabled){transform:translateY(0);box-shadow:0 2px 8px #0066ff4d}.search-submit-btn:disabled{background:var(--color-textTertiary);cursor:not-allowed;opacity:.5;box-shadow:none}.search-submit-btn:focus{outline:none;box-shadow:0 0 0 3px #0066ff4d}.header-right{display:flex;align-items:center;flex-shrink:0}.header-actions{display:flex;align-items:center;gap:.5rem}.action-button{display:flex;align-items:center;gap:.5rem;background:none;border:none;color:var(--color-textSecondary);cursor:pointer;padding:.5rem;border-radius:.75rem;transition:all .2s ease;font-size:.875rem;font-weight:500;position:relative}.action-button:hover{background:var(--color-primaryLight);color:var(--color-primary)}.action-button:focus{outline:2px solid var(--color-primary);outline-offset:2px}.notification-button{position:relative}.notification-badge{position:absolute;top:.25rem;right:.25rem;background:var(--color-accent);color:var(--color-textInverse);font-size:.625rem;font-weight:700;padding:.125rem .375rem;border-radius:.75rem;min-width:1.25rem;height:1.25rem;display:flex;align-items:center;justify-content:center;animation:pulse 2s infinite}@keyframes pulse{0%,to{transform:scale(1)}50%{transform:scale(1.1)}}.theme-toggle{background:var(--color-backgroundSecondary);border:1px solid var(--color-border)}.theme-toggle:hover{background:var(--color-primary);color:var(--color-textInverse);border-color:var(--color-primary);box-shadow:var(--shadow-glow)}.user-button{background:var(--color-backgroundSecondary);border:1px solid var(--color-border);padding:.5rem .75rem}.user-avatar{width:24px;height:24px;background:linear-gradient(135deg,var(--color-primary),var(--color-secondary));border-radius:50%;display:flex;align-items:center;justify-content:center;color:var(--color-textInverse)}.user-name{font-weight:600;color:var(--color-textPrimary)}.user-button:hover{background:var(--color-primary);color:var(--color-textInverse);border-color:var(--color-primary)}.user-button:hover .user-name{color:var(--color-textInverse)}.progress-container{position:absolute;bottom:0;left:0;right:0;height:2px;background:var(--color-border);overflow:hidden}.progress-bar{height:100%;background:linear-gradient(90deg,var(--color-primary),var(--color-secondary));transform-origin:left;box-shadow:0 0 10px var(--color-primary)}@media (min-width: 769px){.header.sidebar-open .header-content{padding-left:.75rem;padding-right:.75rem}.header.sidebar-open .header-center{max-width:350px;margin:0 .75rem}.header.sidebar-open .brand-text .brand-title{font-size:1.125rem}.header.sidebar-open .brand-text .brand-subtitle{font-size:.65rem}.header.sidebar-open .header-left{gap:.75rem}.header.sidebar-open .header-actions{gap:.25rem}.header.sidebar-closed .header-content{padding-left:2rem;padding-right:2rem}.header.sidebar-closed .header-center{max-width:500px;margin:0 2rem}.header.sidebar-closed .brand-text .brand-title{font-size:1.5rem}.header.sidebar-closed .brand-text .brand-subtitle{font-size:.75rem}.header.sidebar-closed .header-left{gap:1rem}.header.sidebar-closed .header-actions{gap:.5rem}.header-content,.header-center,.header-left,.header-actions,.brand-title,.brand-subtitle{transition:all .3s cubic-bezier(.4,0,.2,1)}}@media (max-width: 768px){.header-content{padding:0 1rem}.sidebar-toggle{display:flex}.brand-text{display:none}.header-center{margin:0 1rem;max-width:none}.user-name{display:none}.header-actions{gap:.25rem}}@media (max-width: 640px){.header-center,.brand-subtitle{display:none}}.theme-dark .header{border-bottom-color:#334155cc}.theme-dark .quick-search{background:#1e293bcc;border-color:#334155cc}.theme-dark .quick-search:focus-within{background:#1e293bf2;border-color:var(--color-primary);box-shadow:0 0 0 3px #00d4ff1a}.theme-dark .action-button:hover{background:#00d4ff1a}.theme-light .header{border-bottom-color:#e2e8f0cc}.theme-light .quick-search{background:#f1f5f9cc;border-color:#e2e8f0cc}.theme-light .quick-search:focus-within{background:#fffffff2;border-color:var(--color-primary);box-shadow:0 0 0 3px #0066ff1a}.theme-light .action-button:hover{background:#0066ff0d}.header:before{content:"";position:absolute;inset:0;background:linear-gradient(135deg,#ffffff1a,#ffffff0d);pointer-events:none;z-index:-1}.theme-dark .header:before{background:linear-gradient(135deg,#00d4ff0d,#0066ff05)}.header,.action-button,.quick-search,.brand-icon{transition:all .3s cubic-bezier(.4,0,.2,1)}.sidebar{position:fixed;top:0;left:0;height:100vh;background:var(--color-surface);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-right:1px solid var(--color-border);z-index:1000;overflow:hidden;transition:all .3s cubic-bezier(.4,0,.2,1)}.sidebar.dark{background:#0f172af2;border-right-color:var(--color-border);box-shadow:var(--shadow-glass)}.sidebar.light{background:#fffffff2;border-right-color:var(--color-border);box-shadow:var(--shadow-lg)}.sidebar-content{height:100%;display:flex;flex-direction:column;padding:1rem 0;position:relative}.sidebar-toggle{width:40px;height:40px;background:transparent;border:1px solid var(--color-border);border-radius:50%;color:var(--color-textSecondary);cursor:pointer;display:flex;align-items:center;justify-content:center;z-index:10;transition:all .2s ease;margin:0 1rem 1rem auto;flex-shrink:0}.sidebar-toggle:hover{background:var(--color-primaryLight);color:var(--color-primary);border-color:var(--color-primary)}.sidebar-toggle:active{transform:scale(.95)}.sidebar.dark .sidebar-toggle{border-color:#334155cc}.sidebar.dark .sidebar-toggle:hover{background:#00d4ff1a;color:var(--color-primary);border-color:var(--color-primary)}.sidebar.light .sidebar-toggle{border-color:#e2e8f0cc}.sidebar.light .sidebar-toggle:hover{background:#0066ff0d;color:var(--color-primary);border-color:var(--color-primary)}.sidebar-nav{flex:1;padding:3rem 0 1rem;overflow-y:auto;overflow-x:hidden}.sidebar-nav::-webkit-scrollbar{width:4px}.sidebar-nav::-webkit-scrollbar-track{background:transparent}.sidebar-nav::-webkit-scrollbar-thumb{background:var(--color-border);border-radius:2px}.sidebar-nav::-webkit-scrollbar-thumb:hover{background:var(--color-borderHover)}.nav-section{margin-bottom:2rem}.nav-section-title{font-size:.75rem;font-weight:600;text-transform:uppercase;letter-spacing:.05em;color:var(--color-textTertiary);margin:0 0 .75rem 1.5rem;padding:0}.nav-list{list-style:none;margin:0;padding:0}.nav-list li{margin-bottom:.25rem}.nav-item{display:flex;align-items:center;padding:.75rem 1.5rem;color:var(--color-textSecondary);text-decoration:none;transition:all .2s ease;position:relative;border-radius:0;margin:0 .5rem;border-radius:.75rem;font-weight:500;font-size:.875rem}.nav-item:hover{background:var(--color-primaryLight);color:var(--color-primary);transform:translate(4px)}.nav-item.active{background:linear-gradient(135deg,var(--color-primary),var(--color-secondary));color:var(--color-textInverse);box-shadow:var(--shadow-glow);font-weight:600}.nav-item.active:before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:3px;height:20px;background:var(--color-textInverse);border-radius:0 2px 2px 0}.nav-item-icon{display:flex;align-items:center;justify-content:center;width:20px;height:20px;margin-right:.75rem;flex-shrink:0}.nav-item-label{white-space:nowrap;overflow:hidden;flex:1}.nav-item.medical-system{position:relative}.nav-item.medical-system[data-system=cardiovascular-system]:hover{background:#ff6b6b1a;color:var(--color-medical-cardiology)}.nav-item.medical-system[data-system=respiratory-system]:hover{background:#45b7d11a;color:var(--color-medical-respiratory)}.nav-item.medical-system[data-system=nervous-system]:hover{background:#4ecdc41a;color:var(--color-medical-neurology)}.nav-item.medical-system[data-system=digestive-system]:hover{background:#96ceb41a;color:var(--color-medical-digestive)}.nav-item.medical-system[data-system=endocrine-system]:hover{background:#ffeaa71a;color:var(--color-medical-endocrine)}.nav-item.medical-system[data-system=musculoskeletal-system]:hover{background:#dda0dd1a;color:var(--color-medical-musculoskeletal)}.nav-item.medical-system[data-system=immune-system]:hover{background:#98d8c81a;color:var(--color-medical-immune)}.nav-item.medical-system[data-system=reproductive-system]:hover{background:#f7dc6f1a;color:var(--color-medical-reproductive)}.nav-loading,.nav-error,.nav-empty{opacity:.6}.loading-spinner{width:16px;height:16px;border:2px solid var(--color-border);border-top:2px solid var(--color-primary);border-radius:50%;animation:spin 1s linear infinite}@media (max-width: 768px){.sidebar{transform:translate(-100%);transition:transform .3s ease;width:280px!important;z-index:1001}.sidebar.mobile-open{transform:translate(0)}.sidebar.mobile-open:after{content:"";position:fixed;inset:0 0 0 280px;background:#00000080;z-index:-1;backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px)}.sidebar-toggle{display:none}}.theme-dark .sidebar{border-right-color:#334155cc}.theme-dark .nav-item:hover{background:#00d4ff1a}.theme-dark .nav-item.active{background:linear-gradient(135deg,var(--color-primary),var(--color-secondary));box-shadow:0 0 20px #00d4ff4d}.theme-light .sidebar{border-right-color:#e2e8f0cc}.theme-light .nav-item:hover{background:#0066ff0d}.theme-light .nav-item.active{background:linear-gradient(135deg,var(--color-primary),var(--color-secondary));box-shadow:0 0 20px #06f3}.nav-item:focus{outline:2px solid var(--color-primary);outline-offset:2px}.sidebar-toggle:focus{outline:2px solid var(--color-textInverse);outline-offset:2px}.nav-item,.nav-section-title,.nav-item-label{transition:all .2s cubic-bezier(.4,0,.2,1)}.sidebar:before{content:"";position:absolute;inset:0;background:linear-gradient(135deg,#ffffff1a,#ffffff0d);pointer-events:none;z-index:-1}.theme-dark .sidebar:before{background:linear-gradient(135deg,#00d4ff0d,#0066ff05)}.app-container{display:flex;flex-direction:column;min-height:100vh;background:var(--color-background);color:var(--color-textPrimary);font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;transition:all .3s cubic-bezier(.4,0,.2,1)}.main-content{flex:1;margin-top:70px;margin-left:280px;min-height:calc(100vh - 70px);transition:margin-left .3s cubic-bezier(.4,0,.2,1);position:relative;overflow-x:hidden}.main-content.chat-page-content{margin-top:0;min-height:100vh}.content-wrapper{padding:2rem;max-width:1400px;margin:0 auto;width:100%;min-height:calc(100vh - 70px - 4rem);position:relative}.chat-page-content .content-wrapper{padding:0;max-width:none;min-height:100vh}.app-container:before{content:"";position:fixed;inset:0;background-image:radial-gradient(circle at 25% 25%,rgba(0,102,255,.05) 0%,transparent 50%),radial-gradient(circle at 75% 75%,rgba(0,212,255,.05) 0%,transparent 50%);pointer-events:none;z-index:-1}.theme-dark .app-container:before{background-image:radial-gradient(circle at 25% 25%,rgba(0,212,255,.08) 0%,transparent 50%),radial-gradient(circle at 75% 75%,rgba(0,102,255,.08) 0%,transparent 50%)}@media (max-width: 1024px){.content-wrapper{padding:1.5rem}}@media (max-width: 768px){.main-content{margin-left:0;margin-top:70px}.main-content.chat-page-content{margin-left:0;margin-top:0}.content-wrapper{padding:1rem}}@media (max-width: 640px){.content-wrapper{padding:.75rem}}.main-content::-webkit-scrollbar{width:8px}.main-content::-webkit-scrollbar-track{background:var(--color-backgroundSecondary)}.main-content::-webkit-scrollbar-thumb{background:var(--color-border);border-radius:4px}.main-content::-webkit-scrollbar-thumb:hover{background:var(--color-borderHover)}.loading-overlay{position:fixed;inset:0;background:#00000080;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;z-index:9999}.loading-spinner{width:40px;height:40px;border:3px solid var(--color-border);border-top:3px solid var(--color-primary);border-radius:50%;animation:spin 1s linear infinite}.error-boundary{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:50vh;text-align:center;padding:2rem}.error-title{font-size:2rem;font-weight:700;color:var(--color-error);margin-bottom:1rem}.error-message{font-size:1.125rem;color:var(--color-textSecondary);margin-bottom:2rem;max-width:600px}.error-button{background:var(--color-primary);color:var(--color-textInverse);border:none;padding:.75rem 1.5rem;border-radius:.5rem;font-weight:600;cursor:pointer;transition:all .2s ease}.error-button:hover{background:var(--color-primaryHover);transform:translateY(-1px);box-shadow:var(--shadow-lg)}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.app-container:focus-within{outline:none}@media (prefers-reduced-motion: reduce){.main-content,.content-wrapper,.app-container,.app-container:before{transition:none;animation:none}}@media (prefers-contrast: high){.app-container{background:var(--color-background);border:1px solid var(--color-border)}.main-content{border-left:2px solid var(--color-border)}}@media print{.app-container:before,.loading-overlay{display:none}.main-content{margin-left:0;margin-top:0}.content-wrapper{padding:0;max-width:none}}.fade-in{animation:fadeIn .3s ease-in-out}.slide-up{animation:slideUp .3s ease-out}.scale-in{animation:scaleIn .2s ease-out}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{transform:translateY(20px);opacity:0}to{transform:translateY(0);opacity:1}}@keyframes scaleIn{0%{transform:scale(.95);opacity:0}to{transform:scale(1);opacity:1}}.glass-effect{background:var(--color-surface);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid var(--color-border)}.gradient-text{background:linear-gradient(135deg,var(--color-primary),var(--color-secondary));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.medical-glow{box-shadow:var(--shadow-medical)}.interactive-hover{transition:all .2s ease}.interactive-hover:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg)}.theme-dark .main-content,.theme-light .main-content{background:var(--color-background)}.content-wrapper>*{position:relative;z-index:1}button,a,input,textarea,select{transition:all .2s cubic-bezier(.4,0,.2,1)}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:2px solid var(--color-primary);outline-offset:2px}.search-form-container{width:100%;max-width:600px;margin:0 auto}.search-form{display:flex;gap:1rem;margin-bottom:1.5rem;align-items:stretch}.search-input-wrapper{flex:1;position:relative;display:flex;align-items:center;background:var(--color-surface);border:2px solid var(--color-border);border-radius:1rem;padding:0 1rem;transition:all .3s cubic-bezier(.4,0,.2,1);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);box-shadow:var(--shadow-md)}.search-input-wrapper:hover{border-color:var(--color-borderHover);box-shadow:var(--shadow-lg)}.search-input-wrapper.focused{border-color:var(--color-primary);box-shadow:0 0 0 4px #0066ff1a,var(--shadow-lg);background:var(--color-surfaceHover)}.search-input-wrapper.loading{border-color:var(--color-primary);animation:pulse-border 2s infinite}@keyframes pulse-border{0%,to{border-color:var(--color-primary)}50%{border-color:var(--color-secondary)}}.search-icon{display:flex;align-items:center;color:var(--color-textTertiary);margin-right:.75rem;transition:color .2s ease}.search-input-wrapper.focused .search-icon{color:var(--color-primary)}.search-input{flex:1;background:none;border:none;outline:none;font-size:1rem;font-weight:500;color:var(--color-textPrimary);padding:1rem 0;font-family:inherit;min-width:0}.search-input::placeholder{color:var(--color-textTertiary);font-weight:400}.search-input:disabled{opacity:.6;cursor:not-allowed}.clear-button{background:none;border:none;color:var(--color-textTertiary);cursor:pointer;padding:.25rem;margin-left:.5rem;border-radius:50%;width:24px;height:24px;display:flex;align-items:center;justify-content:center;font-size:1.25rem;line-height:1;transition:all .2s ease}.clear-button:hover{background:var(--color-backgroundSecondary);color:var(--color-textSecondary)}.search-button{background:linear-gradient(135deg,var(--color-primary),var(--color-secondary));color:var(--color-textInverse);border:none;border-radius:1rem;padding:1rem 2rem;font-size:1rem;font-weight:600;cursor:pointer;display:flex;align-items:center;gap:.5rem;transition:all .3s cubic-bezier(.4,0,.2,1);box-shadow:var(--shadow-md);white-space:nowrap;width:auto;flex-shrink:0;justify-content:center}.search-button:hover:not(:disabled){box-shadow:var(--shadow-glow);transform:translateY(-1px)}.search-button:active:not(:disabled){transform:translateY(0)}.search-button:disabled{opacity:.6;cursor:not-allowed;transform:none;box-shadow:var(--shadow-md)}.suggestions-container{margin-top:1.5rem;text-align:center}.suggestions-label{font-size:.875rem;color:var(--color-textTertiary);margin-bottom:1rem;font-weight:500}.suggestions-grid{display:flex;flex-wrap:wrap;gap:.75rem;justify-content:center}.suggestion-chip{background:var(--color-backgroundSecondary);border:1px solid var(--color-border);border-radius:2rem;padding:.5rem 1rem;font-size:.875rem;font-weight:500;color:var(--color-textSecondary);cursor:pointer;transition:all .2s ease;white-space:nowrap}.suggestion-chip:hover{background:var(--color-primaryLight);border-color:var(--color-primary);color:var(--color-primary);transform:translateY(-1px);box-shadow:var(--shadow-md)}.search-tips{position:absolute;top:100%;left:0;right:0;background:var(--color-surface);border:1px solid var(--color-border);border-radius:.75rem;padding:1rem;margin-top:.5rem;box-shadow:var(--shadow-lg);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);z-index:10}.tip-item{display:flex;align-items:flex-start;gap:.75rem;margin-bottom:.75rem;font-size:.875rem;color:var(--color-textSecondary);line-height:1.5}.tip-item:last-child{margin-bottom:0}.tip-icon{font-size:1rem;flex-shrink:0;margin-top:.125rem}@media (max-width: 768px){.search-form{flex-direction:column;gap:.75rem}.search-button{padding:1rem;min-width:auto}.suggestions-grid{gap:.5rem}.suggestion-chip{font-size:.8125rem;padding:.375rem .75rem}.search-tips{position:relative;margin-top:1rem}}@media (max-width: 640px){.search-input-wrapper{padding:0 .75rem}.search-input{padding:.875rem 0;font-size:.9375rem}.search-button{padding:.875rem 1.5rem;font-size:.9375rem}.suggestions-grid{flex-direction:column;align-items:center}.suggestion-chip{width:100%;max-width:200px;text-align:center}}.theme-dark .search-input-wrapper{background:#1e293bcc;border-color:#334155cc}.theme-dark .search-input-wrapper:hover{border-color:#475569cc}.theme-dark .search-input-wrapper.focused{border-color:var(--color-primary);box-shadow:0 0 0 4px #00d4ff1a,var(--shadow-lg);background:#1e293bf2}.theme-dark .suggestion-chip:hover{background:#00d4ff1a;border-color:var(--color-primary);color:var(--color-primary)}.theme-dark .search-tips{background:#1e293bf2;border-color:#334155cc}.theme-light .search-input-wrapper{background:#ffffffe6;border-color:#e2e8f0cc}.theme-light .search-input-wrapper:hover{border-color:#cbd5e1cc}.theme-light .search-input-wrapper.focused{border-color:var(--color-primary);box-shadow:0 0 0 4px #0066ff1a,var(--shadow-lg);background:#fffffff2}.theme-light .suggestion-chip:hover{background:#0066ff0d;border-color:var(--color-primary);color:var(--color-primary)}.theme-light .search-tips{background:#fffffff2;border-color:#e2e8f0cc}.search-input:focus{outline:none}.search-button:focus-visible,.suggestion-chip:focus-visible,.clear-button:focus-visible{outline:2px solid var(--color-primary);outline-offset:2px}@media (prefers-contrast: high){.search-input-wrapper{border-width:2px}.search-input-wrapper.focused{border-width:3px}.suggestion-chip{border-width:2px}}@media (prefers-reduced-motion: reduce){.search-input-wrapper,.search-button,.suggestion-chip,.clear-button{transition:none}.search-input-wrapper.loading{animation:none}}.search-input-wrapper.loading:after{content:"";position:absolute;inset:-2px;background:linear-gradient(45deg,var(--color-primary),var(--color-secondary),var(--color-primary));background-size:200% 200%;border-radius:1rem;z-index:-1;animation:gradient-shift 2s ease infinite}@keyframes gradient-shift{0%,to{background-position:0% 50%}50%{background-position:100% 50%}}.search-form-container{position:relative}.search-input-wrapper.focused:before{content:"";position:absolute;inset:-4px;background:linear-gradient(135deg,var(--color-primary),var(--color-secondary));border-radius:1.25rem;z-index:-1;opacity:.1}.results-wrapper{margin-top:30px;text-align:left;direction:ltr}.section-divider{border:0;height:1px;background-color:var(--color-border);margin:40px 0}.result-section h2{color:var(--color-textPrimary);border-bottom:2px solid var(--color-border);padding-bottom:8px;margin-bottom:15px}.html-content>div{width:100%!important;box-sizing:border-box!important}.markdown-content h3{color:var(--color-primary);margin-top:20px}.markdown-content ul{padding-left:20px;list-style-type:"✓ "}.markdown-content li{margin-bottom:8px}.markdown-content strong{color:var(--color-accent)}.quiz-item{margin-bottom:25px}.quiz-question{font-weight:700;margin-bottom:10px;color:var(--color-textPrimary)}.quiz-options{list-style:none;padding:0;margin-bottom:10px}.quiz-options li{padding:8px;border:1px solid var(--color-border);margin-bottom:5px;border-radius:5px;background-color:var(--color-surface);color:var(--color-textPrimary)}.toggle-answer-btn{font-size:12px;padding:6px 12px;cursor:pointer;border-radius:5px;border:1px solid var(--color-primary);background-color:var(--color-surface);color:var(--color-primary);transition:all .2s ease}.toggle-answer-btn:hover{background-color:var(--color-primary);color:var(--color-textInverse)}.quiz-answer{display:none;margin-top:10px;padding:12px;background-color:var(--color-primaryLight);border-left:3px solid var(--color-primary);border-radius:4px;color:var(--color-textPrimary)}.quiz-answer .correct{font-weight:700;color:var(--color-success)}@media (max-width: 768px){.results-wrapper{margin-top:20px}.section-divider{margin:30px 0}.result-section h2{font-size:1.25rem;margin-bottom:12px}.markdown-content h3{font-size:1.1rem;margin-top:16px}.markdown-content ul{padding-left:16px}.quiz-item{margin-bottom:20px}.quiz-options li{padding:10px;font-size:.9rem}.toggle-answer-btn{font-size:11px;padding:5px 10px}.quiz-answer{padding:10px;font-size:.9rem}}@media (max-width: 480px){.results-wrapper{margin-top:15px}.result-section h2{font-size:1.1rem}.markdown-content h3{font-size:1rem}.quiz-options li,.quiz-answer{padding:8px;font-size:.85rem}}.homepage{min-height:100vh;position:relative;overflow-x:hidden}.hero-section{position:relative;padding:4rem 0 6rem;text-align:center;background:linear-gradient(135deg,var(--color-background) 0%,var(--color-backgroundSecondary) 100%);overflow:hidden}.hero-content{position:relative;z-index:2;max-width:800px;margin:0 auto;padding:0 2rem}.hero-badge{display:inline-flex;align-items:center;gap:.5rem;background:var(--color-surface);border:1px solid var(--color-border);border-radius:2rem;padding:.5rem 1rem;font-size:.875rem;font-weight:500;color:var(--color-primary);margin-bottom:2rem;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);box-shadow:var(--shadow-md)}.hero-title{font-size:clamp(2.5rem,5vw,4rem);font-weight:800;line-height:1.1;margin-bottom:1.5rem;color:var(--color-textPrimary)}.hero-title .gradient-text{background:linear-gradient(135deg,var(--color-primary),var(--color-secondary));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.hero-subtitle{font-size:1.25rem;color:var(--color-textSecondary);margin-bottom:3rem;line-height:1.6;max-width:600px;margin-left:auto;margin-right:auto}.hero-search{max-width:600px;margin:0 auto}.floating-elements{position:absolute;inset:0;pointer-events:none;z-index:1}.floating-card{position:absolute;background:var(--color-surface);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border:1px solid var(--color-border);border-radius:1rem;padding:1rem;display:flex;flex-direction:column;align-items:center;gap:.5rem;box-shadow:var(--shadow-lg);font-size:.875rem;font-weight:500;color:var(--color-textSecondary);min-width:100px}.floating-card:nth-child(1){top:20%;left:10%}.floating-card:nth-child(2){top:30%;right:15%}.floating-card:nth-child(3){bottom:30%;left:15%}.card-icon{width:48px;height:48px;border-radius:.75rem;display:flex;align-items:center;justify-content:center;color:#fff;margin-bottom:.5rem}.card-icon.cardiology{background:linear-gradient(135deg,var(--color-medical-cardiology),#FF8A80)}.card-icon.neurology{background:linear-gradient(135deg,var(--color-medical-neurology),#64FFDA)}.card-icon.respiratory{background:linear-gradient(135deg,var(--color-medical-respiratory),#40C4FF)}.results-section{padding:2rem 0;margin-top:2rem}.loading-state{text-align:center;padding:4rem 2rem}.loading-spinner-large{margin:0 auto 2rem;width:80px;height:80px;position:relative}.spinner{width:100%;height:100%;border:4px solid var(--color-border);border-top:4px solid var(--color-primary);border-radius:50%;animation:spin 1s linear infinite}.loading-state h3{font-size:1.5rem;font-weight:600;color:var(--color-textPrimary);margin-bottom:.5rem}.loading-state p{color:var(--color-textSecondary);font-size:1rem}.error-state{text-align:center;padding:4rem 2rem;background:var(--color-surface);border:1px solid var(--color-border);border-radius:1rem;margin:2rem 0;box-shadow:var(--shadow-md)}.error-icon{font-size:3rem;margin-bottom:1rem}.error-state h3{font-size:1.5rem;font-weight:600;color:var(--color-error);margin-bottom:.5rem}.error-state p{color:var(--color-textSecondary);margin-bottom:2rem}.retry-button{background:var(--color-primary);color:var(--color-textInverse);border:none;border-radius:.5rem;padding:.75rem 1.5rem;font-weight:600;cursor:pointer;transition:all .2s ease}.retry-button:hover{background:var(--color-primaryHover);transform:translateY(-1px);box-shadow:var(--shadow-lg)}.features-section{padding:6rem 0;background:var(--color-backgroundSecondary);margin-top:4rem}.section-header{text-align:center;margin-bottom:4rem}.section-header h2{font-size:2.5rem;font-weight:700;color:var(--color-textPrimary);margin-bottom:1rem}.section-header p{font-size:1.125rem;color:var(--color-textSecondary);max-width:600px;margin:0 auto}.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:2rem;max-width:1200px;margin:0 auto;padding:0 2rem}.feature-card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:1rem;padding:2rem;text-align:center;transition:all .3s ease;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);box-shadow:var(--shadow-md)}.feature-card:hover{border-color:var(--color-primary);box-shadow:var(--shadow-glow)}.feature-icon{width:64px;height:64px;background:linear-gradient(135deg,var(--color-primary),var(--color-secondary));border-radius:1rem;display:flex;align-items:center;justify-content:center;margin:0 auto 1.5rem;color:var(--color-textInverse)}.feature-card h3{font-size:1.25rem;font-weight:600;color:var(--color-textPrimary);margin-bottom:.75rem}.feature-card p{color:var(--color-textSecondary);line-height:1.6}.stats-section{padding:4rem 0;background:var(--color-surface);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-top:1px solid var(--color-border);border-bottom:1px solid var(--color-border)}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:2rem;max-width:800px;margin:0 auto;padding:0 2rem}.stat-item{text-align:center;padding:1.5rem;background:var(--color-backgroundSecondary);border-radius:1rem;border:1px solid var(--color-border);transition:all .3s ease}.stat-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg)}.stat-value{font-size:2.5rem;font-weight:800;color:var(--color-primary);margin-bottom:.5rem;display:inline-block}.stat-label{font-size:.875rem;font-weight:500;color:var(--color-textSecondary);text-transform:uppercase;letter-spacing:.05em}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-10px)}}@keyframes glow{0%,to{box-shadow:var(--shadow-md)}50%{box-shadow:var(--shadow-glow)}}@media (max-width: 1024px){.floating-elements{display:none}.hero-section{padding:3rem 0 4rem}.features-grid{grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:1.5rem}}@media (max-width: 768px){.hero-content{padding:0 1rem}.hero-title{font-size:2.5rem}.hero-subtitle{font-size:1.125rem;margin-bottom:2rem}.features-section{padding:4rem 0}.section-header h2{font-size:2rem}.features-grid{grid-template-columns:1fr;padding:0 1rem}.stats-grid{grid-template-columns:repeat(2,1fr);gap:1rem;padding:0 1rem}}@media (max-width: 640px){.hero-section{padding:2rem 0 3rem}.hero-title{font-size:2rem}.hero-subtitle{font-size:1rem}.stats-grid{grid-template-columns:1fr}.stat-value{font-size:2rem}}.theme-dark .hero-section{background:linear-gradient(135deg,var(--color-background) 0%,var(--color-backgroundSecondary) 100%)}.theme-dark .floating-card{background:#1e293bcc;border-color:#334155cc}.theme-dark .features-section{background:var(--color-backgroundSecondary)}.theme-dark .feature-card:hover{border-color:var(--color-primary);box-shadow:0 0 30px #00d4ff4d}.theme-light .hero-section{background:linear-gradient(135deg,var(--color-background) 0%,var(--color-backgroundSecondary) 100%)}.theme-light .floating-card{background:#ffffffe6;border-color:#e2e8f0cc}.theme-light .feature-card:hover{border-color:var(--color-primary);box-shadow:0 0 20px #06f3}@media (prefers-reduced-motion: reduce){.floating-card,.spinner,.feature-card,.stat-item{animation:none;transition:none}}@media (prefers-contrast: high){.hero-badge,.feature-card,.stat-item{border-width:2px}.gradient-text{-webkit-text-fill-color:var(--color-primary)}}.system-page-container{padding:2rem 2.5rem;max-width:1400px;margin:0 auto}.system-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:.5rem;flex-wrap:wrap;gap:1rem}.system-title{font-size:2.2rem;font-weight:700;color:var(--color-textPrimary)}.system-description{margin-bottom:2rem;color:var(--color-textSecondary);font-size:1rem}.search-bar{display:flex;align-items:center;background-color:var(--color-backgroundSecondary);border-radius:8px;padding:.5rem .8rem;width:100%;max-width:320px;border:1px solid var(--color-border)}.search-bar .search-icon{color:var(--color-textSecondary);margin-right:.5rem}.search-bar input{border:none;background:transparent;outline:none;width:100%;font-size:.95rem;color:var(--color-textPrimary)}.topic-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:1.5rem}.topic-card{background-color:var(--color-backgroundSecondary);border-radius:12px;padding:1.5rem;text-decoration:none;color:inherit;display:block;border:1px solid var(--color-border);transition:transform .2s ease-in-out,box-shadow .2s ease-in-out}.topic-card:hover{transform:translateY(-5px);box-shadow:0 8px 20px #00000014}.topic-card .card-icon{margin-bottom:1rem;color:var(--color-primary)}.topic-card-title{font-size:1.2rem;font-weight:600;margin-bottom:.5rem;color:var(--color-textPrimary)}.topic-card-description{font-size:.85rem;color:var(--color-textSecondary)}.loading-state,.error-state,.empty-state,.not-found-state{text-align:center;padding:4rem 1rem;color:var(--color-textSecondary)}.loading-spinner{border:4px solid var(--color-border);border-top:4px solid var(--color-primary);border-radius:50%;width:40px;height:40px;animation:spin 1s linear infinite;margin:0 auto 1rem}.error-state h2,.empty-state h2,.not-found-state h2{color:var(--color-textPrimary);margin-top:1rem}.error-state p,.empty-state p,.not-found-state p{max-width:400px;margin:.5rem auto 0}@media (max-width: 768px){.system-page-container{padding:1rem 1.5rem}.system-header{flex-direction:column;align-items:flex-start;gap:1rem}.system-title{font-size:1.75rem;line-height:1.2}.system-description{font-size:.9rem;margin-bottom:1.5rem}.search-bar{max-width:100%;width:100%}.topic-grid{grid-template-columns:1fr;gap:1rem}.topic-card{padding:1.25rem}.topic-card-title{font-size:1.1rem}.topic-card-description{font-size:.8rem}.loading-state,.error-state,.empty-state,.not-found-state{padding:3rem 1rem}}@media (max-width: 480px){.system-page-container{padding:.75rem 1rem}.system-title{font-size:1.5rem}.system-description{font-size:.85rem}.topic-card{padding:1rem}.topic-card-title{font-size:1rem}.topic-card-description{font-size:.75rem}.loading-state,.error-state,.empty-state,.not-found-state{padding:2rem .75rem}}.topic-page-container{padding:2rem;max-width:1200px;margin:0 auto}.topic-main-title{font-size:2.5rem;font-weight:700;margin-bottom:.5rem;color:var(--color-textPrimary)}.breadcrumb{font-size:.9rem;margin-bottom:2rem;color:var(--color-textSecondary)}.breadcrumb a{color:var(--color-primary);text-decoration:none;transition:color .2s ease}.breadcrumb a:hover{color:var(--color-primary-dark)}.breadcrumb-active{color:var(--color-textPrimary);font-weight:500}.loading-state{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:4rem;text-align:center}.loading-spinner-large{margin-bottom:1.5rem}.error-message{color:var(--color-error);text-align:center;padding:2rem}@media (max-width: 768px){.topic-page-container{padding:1rem}.topic-main-title{font-size:1.875rem;line-height:1.2;margin-bottom:.75rem}.breadcrumb{font-size:.8rem;margin-bottom:1.5rem;line-height:1.4}.loading-state{padding:2rem 1rem}.error-message{padding:1.5rem 1rem;font-size:.9rem}}@media (max-width: 480px){.topic-page-container{padding:.75rem}.topic-main-title{font-size:1.5rem;line-height:1.3}.breadcrumb{font-size:.75rem;margin-bottom:1rem}.breadcrumb a,.breadcrumb-active{display:inline-block;margin:.1rem 0}}.login-page,.signup-page{display:flex;justify-content:center;align-items:center;height:100vh;background-color:#f0f2f5}.login-container,.signup-container{padding:2rem;background-color:#fff;border-radius:8px;box-shadow:0 2px 10px #0000001a;width:100%;max-width:400px}h2{text-align:center;margin-bottom:1.5rem}.form-group{margin-bottom:1rem}label{display:block;margin-bottom:.5rem}input{width:100%;padding:.5rem;border:1px solid #ccc;border-radius:4px}button{width:100%;padding:.75rem;border:none;border-radius:4px;background-color:#007bff;color:#fff;font-size:1rem;cursor:pointer;transition:background-color .2s}button:hover{background-color:#0056b3}button:disabled{background-color:#ccc}.error{color:red;margin-bottom:1rem;text-align:center}.switch-page{margin-top:1rem;text-align:center}.switch-page a{color:#007bff;text-decoration:none}.switch-page a:hover{text-decoration:underline}.back-to-home{margin-top:1rem;text-align:center}.back-to-home a{color:#6c757d;text-decoration:none}.back-to-home a:hover{text-decoration:underline}.profile-page{padding:2rem;background-color:#f0f2f5;min-height:100vh}.profile-container{max-width:800px;margin:0 auto;background-color:#fff;padding:2rem;border-radius:8px;box-shadow:0 2px 10px #0000001a}.profile-header{text-align:center;margin-bottom:2rem}.profile-picture{width:150px;height:150px;border-radius:50%;object-fit:cover;margin-bottom:1rem}.profile-header h2{margin-bottom:.5rem}.profile-body{display:flex;flex-direction:column}.profile-info{margin-bottom:1.5rem}.profile-info h3{margin-bottom:1rem;border-bottom:1px solid #ccc;padding-bottom:.5rem}.futuristic-page{display:flex;justify-content:center;align-items:center;min-height:100vh;background-color:#1a1a2e;color:#0ff;font-family:Share Tech Mono,monospace;text-align:center;overflow:hidden;position:relative}.futuristic-container{background-color:#00ffff0d;border:1px solid rgba(0,255,255,.2);border-radius:10px;padding:40px;box-shadow:0 0 20px #00ffff4d;position:relative;z-index:1;animation:fadeIn 1s ease-out}.futuristic-title{font-size:3em;margin-bottom:20px;text-shadow:0 0 10px #00ffff}.futuristic-message{font-size:1.5em;margin-bottom:30px;color:#0cf}.futuristic-elements{position:absolute;top:0;left:0;width:100%;height:100%;pointer-events:none;overflow:hidden}.futuristic-line{position:absolute;background:linear-gradient(to right,transparent,#00ffff,transparent);opacity:.2;height:2px;animation:scanLine 3s infinite linear}.line-1{top:20%;width:120%;left:-10%;animation-delay:0s}.line-2{top:50%;width:110%;left:-5%;animation-delay:1s}.line-3{top:80%;width:130%;left:-15%;animation-delay:2s}@keyframes fadeIn{0%{opacity:0;transform:translateY(-20px)}to{opacity:1;transform:translateY(0)}}@keyframes scanLine{0%{transform:translate(-100%)}to{transform:translate(100%)}}.message{max-width:85%;padding:18px;border-radius:18px;line-height:1.6;position:relative;animation:fadeIn .3s ease-out;word-wrap:break-word;margin-bottom:4px}.user-message{background:linear-gradient(135deg,var(--primary),var(--secondary));align-self:flex-end;border-bottom-right-radius:5px;box-shadow:0 4px 15px #6366f14d;color:#fff}.ai-message{background:#2d3050cc;align-self:flex-start;border-bottom-left-radius:5px;box-shadow:0 4px 15px #0003;border:1px solid rgba(124,58,237,.1);color:var(--light)}.user-avatar{background:#fff3;color:#fff}.ai-avatar{background:#8b5cf64d;color:var(--secondary)}.message-sender{flex:1}.message-status{display:flex;align-items:center}.status-sending{color:#f59e0b;animation:pulse 1.5s infinite}.status-delivered{color:#10b981}.status-failed,.status-error{color:#ef4444}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}.message-text{margin-bottom:8px;line-height:1.6}.message-text code{background:#0000004d;padding:2px 6px;border-radius:4px;font-family:Courier New,monospace;font-size:.9em;color:#e2e8f0}.message-text pre{background:#0006;padding:12px;border-radius:8px;overflow-x:auto;margin:8px 0;font-family:Courier New,monospace;font-size:.9em;line-height:1.4}.message-text ul,.message-text ol{margin:8px 0;padding-left:20px}.message-text li{margin:4px 0}.message-files{margin-bottom:12px}.file-attachment{background:#0003;border-radius:8px;padding:8px 12px;margin-bottom:6px;border:1px solid rgba(255,255,255,.1)}.file-info{display:flex;align-items:center;gap:8px}.file-name{font-weight:500;flex:1}.file-size{font-size:.8rem;opacity:.7}.message-metadata{display:flex;gap:12px;margin-bottom:8px;font-size:.75rem;opacity:.8;flex-wrap:wrap}.metadata-item{background:#0003;padding:2px 6px;border-radius:4px;white-space:nowrap}.message-footer{display:flex;align-items:center;justify-content:space-between;margin-top:8px;gap:10px}.message-time{font-size:.7rem;opacity:.7;flex-shrink:0}.message-actions{display:flex;gap:6px;opacity:0;transition:opacity .2s ease;flex-shrink:0}.message:hover .message-actions,.ai-message .message-actions{opacity:1}.message-action-btn{background:#ffffff26;border:1px solid rgba(255,255,255,.2);color:currentColor;padding:6px 12px;border-radius:6px;cursor:pointer;font-size:.8rem;font-weight:500;transition:all .2s ease;display:flex;align-items:center;gap:6px;white-space:nowrap;box-shadow:0 2px 4px #0000001a}.message-action-btn:hover{background:#ffffff40;border-color:#ffffff4d;transform:translateY(-1px);box-shadow:0 4px 8px #00000026}.ai-message .message-action-btn{background:#8b5cf633;border:1px solid rgba(139,92,246,.4);color:#c4b5fd}.ai-message .message-action-btn:hover{background:#8b5cf64d;border-color:#8b5cf680;color:#ddd6fe}.retry-btn{background:#ef444433;color:#fca5a5}.retry-btn:hover{background:#ef44444d;color:#f87171}.user-message .message-action-btn{background:#fff3;color:#ffffffe6}.user-message .message-action-btn:hover{background:#ffffff4d;color:#fff}.ai-message .message-text code{background:#8b5cf633;color:#c4b5fd}.ai-message .message-text pre{background:#8b5cf61a;border:1px solid rgba(139,92,246,.2)}@media (max-width: 768px){.message{max-width:95%;padding:14px}.message-header{font-size:.8rem}.message-avatar{width:28px;height:28px}.message-actions{flex-direction:column;gap:4px}.message-action-btn{font-size:.7rem;padding:3px 6px}.message-metadata{font-size:.7rem}.message-footer{flex-direction:column;align-items:flex-start;gap:6px}}@media (max-width: 480px){.message{padding:12px;font-size:.9rem}.message-text{font-size:.9rem}.message-metadata{display:none}}@keyframes slideInFromBottom{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.message.new-message{animation:slideInFromBottom .4s ease-out}.message-text.loading{background:linear-gradient(90deg,transparent,rgba(255,255,255,.1),transparent);background-size:200% 100%;animation:shimmer 1.5s infinite}@keyframes shimmer{0%{background-position:-200% 0}to{background-position:200% 0}}.message.system-message{background:#f59e0b1a;border:1px solid rgba(245,158,11,.3);color:#fbbf24;align-self:center;max-width:70%;text-align:center;font-style:italic}.message.system-message .message-avatar{background:#f59e0b4d;color:#fbbf24}.message.error-message{background:#ef44441a;border:1px solid rgba(239,68,68,.3);color:#fca5a5}.message.error-message .message-avatar{background:#ef44444d;color:#f87171}.markdown-content{line-height:1.6}.user-text{margin:0;line-height:1.6}.markdown-paragraph{margin:0 0 12px;line-height:1.6}.markdown-paragraph:last-child{margin-bottom:0}.markdown-h1{font-size:1.5em;font-weight:700;margin:16px 0 12px;color:var(--secondary);border-bottom:2px solid rgba(139,92,246,.3);padding-bottom:8px}.markdown-h2{font-size:1.3em;font-weight:600;margin:14px 0 10px;color:var(--secondary)}.markdown-h3{font-size:1.1em;font-weight:600;margin:12px 0 8px;color:var(--secondary)}.markdown-ul,.markdown-ol{margin:12px 0;padding-left:20px}.markdown-li{margin:6px 0;line-height:1.5}.markdown-li::marker{color:var(--secondary)}.inline-code{background:#8b5cf633;color:#c4b5fd;padding:2px 6px;border-radius:4px;font-family:Courier New,Monaco,Menlo,monospace;font-size:.9em;border:1px solid rgba(139,92,246,.3)}.code-block-container{margin:16px 0;border-radius:8px;overflow:hidden;background:#0006;border:1px solid rgba(139,92,246,.2)}.code-block-header{display:flex;justify-content:space-between;align-items:center;padding:8px 12px;background:#8b5cf61a;border-bottom:1px solid rgba(139,92,246,.2)}.code-language{font-size:.8rem;font-weight:600;color:var(--secondary);text-transform:uppercase;letter-spacing:.5px}.code-copy-btn{background:#8b5cf633;border:1px solid rgba(139,92,246,.3);color:#c4b5fd;padding:4px 8px;border-radius:4px;cursor:pointer;font-size:.75rem;display:flex;align-items:center;gap:4px;transition:all .2s ease}.code-copy-btn:hover{background:#8b5cf64d;border-color:#8b5cf666;color:#ddd6fe}.markdown-blockquote{margin:16px 0;padding:12px 16px;border-left:4px solid var(--secondary);background:#8b5cf61a;border-radius:0 8px 8px 0;font-style:italic;color:#e2e8f0}.markdown-blockquote p{margin:0}.markdown-link{color:var(--secondary);text-decoration:underline;text-decoration-color:#8b5cf680;transition:all .2s ease}.markdown-link:hover{color:#c4b5fd;text-decoration-color:#c4b5fd}.markdown-table{width:100%;border-collapse:collapse;margin:16px 0;background:#0003;border-radius:8px;overflow:hidden}.markdown-thead{background:#8b5cf633}.markdown-th{padding:12px;text-align:left;font-weight:600;color:var(--secondary);border-bottom:2px solid rgba(139,92,246,.3)}.markdown-td{padding:10px 12px;border-bottom:1px solid rgba(255,255,255,.1)}.markdown-tr:hover{background:#8b5cf60d}.user-message .inline-code{background:#fff3;color:#ffffffe6;border:1px solid rgba(255,255,255,.3)}.user-message .markdown-h1,.user-message .markdown-h2,.user-message .markdown-h3{color:#fffffff2}.user-message .markdown-h1{border-bottom-color:#ffffff4d}.user-message .markdown-blockquote{border-left-color:#ffffff80;background:#ffffff1a;color:#ffffffe6}.user-message .markdown-link{color:#ffffffe6;text-decoration-color:#ffffff80}.user-message .markdown-link:hover{color:#fff;text-decoration-color:#fff}@media (max-width: 768px){.markdown-h1{font-size:1.3em}.markdown-h2{font-size:1.2em}.markdown-h3{font-size:1.1em}.code-block-header{padding:6px 10px}.code-language{font-size:.75rem}.code-copy-btn{padding:3px 6px;font-size:.7rem}.markdown-table{font-size:.9rem}.markdown-th,.markdown-td{padding:8px}}.message-text pre[class*=language-]{margin:0!important;background:transparent!important;padding:12px!important;border-radius:0!important;font-size:.85rem!important;line-height:1.4!important}.message-text code[class*=language-]{background:transparent!important;color:inherit!important;text-shadow:none!important}@media (prefers-color-scheme: dark){.markdown-content{color:#e2e8f0}.markdown-table{background:#0000004d}.markdown-td{border-bottom-color:#ffffff0d}}.chat-interface{display:flex;flex-direction:column;height:100%;width:100%;position:relative;background:transparent}.messages-container{flex:1;overflow-y:auto;padding:1rem;display:flex;flex-direction:column;gap:1rem;min-height:0;scroll-behavior:smooth}.messages-container::-webkit-scrollbar{width:6px}.messages-container::-webkit-scrollbar-track{background:var(--color-backgroundSecondary);border-radius:3px}.messages-container::-webkit-scrollbar-thumb{background:var(--color-border);border-radius:3px}.messages-container::-webkit-scrollbar-thumb:hover{background:var(--color-borderHover)}.welcome-message{text-align:center;padding:2rem;color:var(--color-textSecondary);max-width:600px;margin:0 auto}.welcome-message h3{font-size:1.5rem;font-weight:600;margin-bottom:1rem;background:linear-gradient(135deg,var(--color-primary),var(--color-secondary));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.welcome-message p{font-size:1rem;line-height:1.6;margin-bottom:1.5rem}.quick-actions{display:flex;flex-wrap:wrap;gap:.75rem;justify-content:center;margin-top:1.5rem}.quick-action{padding:.5rem 1rem;background:var(--color-backgroundSecondary);border:1px solid var(--color-border);border-radius:20px;color:var(--color-textPrimary);font-size:.875rem;cursor:pointer;transition:all .2s ease;white-space:nowrap}.quick-action:hover{background:var(--color-surface);border-color:var(--color-primary);transform:translateY(-1px)}.input-area-container{position:sticky;bottom:0;left:0;right:0;background:var(--color-background);border-top:1px solid var(--color-border);padding:1rem;z-index:10;backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px)}.typing-indicator{display:flex;align-items:center;gap:.5rem;padding:.75rem 1rem;background:var(--color-surface);border-radius:18px;margin-bottom:.5rem;width:fit-content;border:1px solid var(--color-border)}.typing-dots{display:flex;gap:.25rem}.typing-dots span{width:6px;height:6px;background:var(--color-primary);border-radius:50%;animation:typing 1.4s ease-in-out infinite both}.typing-dots span:nth-child(1){animation-delay:-.32s}.typing-dots span:nth-child(2){animation-delay:-.16s}@keyframes typing{0%,80%,to{transform:scale(.8);opacity:.5}40%{transform:scale(1);opacity:1}}.error-message{background:#ef44441a;border:1px solid rgba(239,68,68,.3);color:#ef4444;padding:1rem;border-radius:8px;margin:1rem;text-align:center;font-size:.875rem}.retry-button{background:#ef4444;color:#fff;border:none;padding:.5rem 1rem;border-radius:6px;font-size:.875rem;cursor:pointer;margin-top:.5rem;transition:all .2s ease}.retry-button:hover{background:#dc2626;transform:translateY(-1px)}.loading-message{display:flex;align-items:center;gap:.75rem;padding:1rem;background:var(--color-surface);border-radius:8px;margin:1rem;border:1px solid var(--color-border)}.loading-spinner{width:20px;height:20px;border:2px solid var(--color-border);border-top:2px solid var(--color-primary);border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}@media (max-width: 768px){.messages-container{padding:.75rem;gap:.75rem}.welcome-message{padding:1.5rem 1rem}.welcome-message h3{font-size:1.25rem}.welcome-message p{font-size:.875rem}.quick-actions{gap:.5rem}.quick-action{padding:.375rem .75rem;font-size:.8125rem}.input-area-container{padding:.75rem}.typing-indicator{padding:.625rem .875rem}}@media (max-width: 480px){.messages-container{padding:.5rem;gap:.5rem}.welcome-message{padding:1rem .75rem}.welcome-message h3{font-size:1.125rem}.quick-actions{flex-direction:column;align-items:center}.quick-action{width:100%;max-width:280px;text-align:center}.input-area-container{padding:.5rem}}@media (prefers-reduced-motion: reduce){.typing-dots span,.loading-spinner,.quick-action,.retry-button{animation:none;transition:none}}@media (prefers-contrast: high){.input-area-container{border-top:2px solid var(--color-border)}.typing-indicator{border:2px solid var(--color-border)}.error-message{border:2px solid rgba(239,68,68,.5)}.loading-message{border:2px solid var(--color-border)}}.quick-action:focus-visible,.retry-button:focus-visible{outline:2px solid var(--color-primary);outline-offset:2px}.empty-chat{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;text-align:center;padding:2rem;color:var(--color-textSecondary)}.empty-chat-icon{font-size:3rem;color:var(--color-primary);margin-bottom:1rem;opacity:.7}.empty-chat h3{font-size:1.25rem;font-weight:600;margin-bottom:.5rem;color:var(--color-textPrimary)}.empty-chat p{font-size:.875rem;max-width:300px;line-height:1.5}.chat-history{display:flex;flex-direction:column;height:100%;background:transparent}.history-header{display:flex;align-items:center;justify-content:space-between;padding:1.5rem 1.5rem 1rem;border-bottom:1px solid var(--color-border)}.header-title{display:flex;align-items:center;gap:.75rem;color:var(--color-textPrimary)}.header-title h3{font-size:1.125rem;font-weight:600;margin:0}.new-chat-btn{display:flex;align-items:center;justify-content:center;width:36px;height:36px;background:var(--color-primary);color:#fff;border:none;border-radius:10px;cursor:pointer;transition:all .2s ease;box-shadow:var(--shadow-sm)}.new-chat-btn:hover{background:var(--color-primaryHover);transform:scale(1.05);box-shadow:var(--shadow-glow)}.history-controls{padding:1rem 1.5rem;display:flex;flex-direction:column;gap:.75rem;border-bottom:1px solid var(--color-border)}.search-container{position:relative}.search-icon{position:absolute;left:.75rem;top:50%;transform:translateY(-50%);color:var(--color-textSecondary);pointer-events:none}.search-input{width:100%;padding:.75rem .75rem .75rem 2.5rem;background:var(--color-backgroundSecondary);border:1px solid var(--color-border);border-radius:10px;color:var(--color-textPrimary);font-size:.875rem;transition:all .2s ease}.search-input:focus{outline:none;border-color:var(--color-primary);box-shadow:var(--shadow-glow)}.search-input::placeholder{color:var(--color-textSecondary)}.filter-container{position:relative}.filter-icon{position:absolute;left:.75rem;top:50%;transform:translateY(-50%);color:var(--color-textSecondary);pointer-events:none}.filter-select{width:100%;padding:.75rem .75rem .75rem 2.5rem;background:var(--color-backgroundSecondary);border:1px solid var(--color-border);border-radius:10px;color:var(--color-textPrimary);font-size:.875rem;cursor:pointer;transition:all .2s ease}.filter-select:focus{outline:none;border-color:var(--color-primary);box-shadow:var(--shadow-glow)}.conversations-list{flex:1;overflow-y:auto;padding:.5rem}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;text-align:center;padding:2rem;color:var(--color-textSecondary)}.empty-icon{margin-bottom:1rem;opacity:.5}.empty-state p{margin-bottom:1.5rem;font-size:.875rem}.empty-state .btn-primary{padding:.75rem 1.5rem;background:var(--color-primary);color:#fff;border:none;border-radius:10px;font-weight:500;cursor:pointer;transition:all .2s ease}.empty-state .btn-primary:hover{background:var(--color-primaryHover);transform:translateY(-1px)}.conversation-group{margin-bottom:1.5rem}.group-header{display:flex;align-items:center;gap:.5rem;padding:.5rem 1rem;color:var(--color-textSecondary);font-size:.75rem;font-weight:600;text-transform:uppercase;letter-spacing:.5px;margin-bottom:.5rem}.group-conversations{display:flex;flex-direction:column;gap:.25rem}.conversation-item{display:flex;align-items:center;gap:.75rem;padding:1rem;background:transparent;border:1px solid transparent;border-radius:12px;cursor:pointer;transition:all .2s ease;position:relative;margin:0 .5rem}.conversation-item:hover{background:var(--color-backgroundSecondary);border-color:var(--color-border);transform:translate(4px)}.conversation-item.active{background:var(--color-primaryLight);border-color:var(--color-primary);box-shadow:var(--shadow-glow)}.conversation-content{flex:1;min-width:0}.conversation-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:.25rem}.conversation-title{font-size:.875rem;font-weight:600;color:var(--color-textPrimary);margin:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:150px}.conversation-meta{display:flex;align-items:center;gap:.25rem;color:var(--color-textSecondary);font-size:.6875rem;flex-shrink:0}.conversation-preview{font-size:.75rem;color:var(--color-textSecondary);margin:0 0 .5rem;line-height:1.3;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.conversation-stats{display:flex;align-items:center;gap:.5rem}.message-count{font-size:.6875rem;color:var(--color-textSecondary);background:var(--color-backgroundSecondary);padding:.125rem .375rem;border-radius:8px;border:1px solid var(--color-border)}.conversation-actions{position:relative;flex-shrink:0}.action-btn{display:flex;align-items:center;justify-content:center;width:28px;height:28px;background:transparent;border:none;border-radius:8px;color:var(--color-textSecondary);cursor:pointer;transition:all .2s ease;opacity:0}.conversation-item:hover .action-btn{opacity:1}.action-btn:hover{background:var(--color-surface);color:var(--color-primary)}.actions-dropdown{position:absolute;top:100%;right:0;background:var(--color-surface);border:1px solid var(--color-border);border-radius:8px;box-shadow:var(--shadow-xl);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);overflow:hidden;z-index:100;min-width:120px}.dropdown-action{display:flex;align-items:center;gap:.5rem;width:100%;padding:.75rem;background:transparent;border:none;color:var(--color-textPrimary);font-size:.875rem;cursor:pointer;transition:all .2s ease;text-align:left}.dropdown-action:hover{background:var(--color-backgroundSecondary)}.dropdown-action.delete{color:var(--color-error)}.dropdown-action.delete:hover{background:var(--color-error);color:#fff}.history-footer{padding:1rem 1.5rem;border-top:1px solid var(--color-border);background:var(--color-backgroundSecondary)}.stats{display:flex;flex-direction:column;gap:.25rem}.stat-item{font-size:.75rem;color:var(--color-textSecondary)}.conversations-list::-webkit-scrollbar{width:6px}.conversations-list::-webkit-scrollbar-track{background:transparent}.conversations-list::-webkit-scrollbar-thumb{background:var(--color-border);border-radius:3px}.conversations-list::-webkit-scrollbar-thumb:hover{background:var(--color-borderHover)}.theme-dark .history-footer{background:#0f172acc}.theme-dark .actions-dropdown{background:#1e293bf2}.theme-dark .conversation-item:hover{background:#33415580}.theme-dark .conversation-item.active{background:#00d4ff1a}@media (max-width: 768px){.history-header{padding:1rem}.history-controls{padding:.75rem 1rem}.conversation-item{padding:.75rem;margin:0 .25rem}.conversation-title{max-width:120px}.conversation-preview{-webkit-line-clamp:1}.history-footer{padding:.75rem 1rem}}@media (max-width: 640px){.header-title h3{font-size:1rem}.new-chat-btn{width:32px;height:32px}.conversation-item{padding:.5rem}.conversation-title{font-size:.8125rem;max-width:100px}.conversation-preview{font-size:.6875rem}.stats{gap:.125rem}.stat-item{font-size:.6875rem}}.conversation-item{position:relative;overflow:hidden}.conversation-item:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.1),transparent);transition:left .5s ease}.conversation-item:hover:before{left:100%}.new-chat-btn:focus-visible,.search-input:focus-visible,.filter-select:focus-visible,.action-btn:focus-visible,.dropdown-action:focus-visible{outline:2px solid var(--color-primary);outline-offset:2px}.conversation-item:focus-visible{outline:2px solid var(--color-primary);outline-offset:2px}@media (prefers-contrast: high){.conversation-item{border:1px solid var(--color-border)}.conversation-item.active{border:2px solid var(--color-primary)}.search-input,.filter-select{border:2px solid var(--color-border)}}@media (prefers-reduced-motion: reduce){.conversation-item,.new-chat-btn,.action-btn,.dropdown-action{transition:none}.conversation-item:before{display:none}}.model-selector{position:relative;z-index:200}.model-selector-trigger{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:.75rem 1rem;background:var(--color-surface);border:1px solid var(--color-border);border-radius:12px;color:var(--color-textPrimary);cursor:pointer;transition:all .2s ease;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);min-width:200px;box-shadow:var(--shadow-sm)}.model-selector-trigger:hover{background:var(--color-surfaceHover);border-color:var(--color-primary);box-shadow:var(--shadow-md);transform:translateY(-1px)}.selected-model{display:flex;align-items:center;gap:.75rem}.model-icon{display:flex;align-items:center;justify-content:center;width:32px;height:32px;border-radius:8px;background:var(--color-backgroundSecondary);transition:all .2s ease}.model-info{display:flex;flex-direction:column;align-items:flex-start}.model-name{font-weight:600;font-size:.875rem;color:var(--color-textPrimary)}.model-provider{font-size:.75rem;color:var(--color-textSecondary)}.model-selector-backdrop{position:fixed;inset:0;background:#0000001a;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);z-index:199}.model-selector-dropdown{position:absolute;top:calc(100% + 8px);left:0;background:var(--color-surface);border:1px solid var(--color-border);border-radius:16px;box-shadow:var(--shadow-xl);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);overflow:hidden;z-index:201;min-width:280px;max-width:380px;width:280px}.model-selector-dropdown.position-right{left:auto;right:0}.model-selector-dropdown.position-center{left:50%;transform:translate(-50%)}.dropdown-header{padding:1.5rem 1.5rem 1rem;border-bottom:1px solid var(--color-border);background:linear-gradient(135deg,var(--color-primary),var(--color-secondary));color:#fff}.dropdown-header h3{font-size:1.125rem;font-weight:700;margin:0 0 .25rem}.dropdown-header p{font-size:.875rem;margin:0;opacity:.9}.models-list{max-height:400px;overflow-y:auto;padding:.5rem}.model-option{display:flex;align-items:center;justify-content:space-between;width:100%;padding:.75rem;background:transparent;border:1px solid transparent;border-radius:12px;cursor:pointer;transition:all .2s ease;margin-bottom:.25rem;text-align:left}.model-option:hover{background:var(--color-backgroundSecondary);border-color:var(--color-border);transform:translate(4px)}.model-option.selected{background:var(--color-primaryLight);border-color:var(--color-primary);box-shadow:var(--shadow-glow)}.model-option-left{display:flex;align-items:center;gap:1rem;flex:1}.model-option .model-icon{width:40px;height:40px;border-radius:10px;background:var(--color-backgroundSecondary);box-shadow:var(--shadow-sm)}.model-details{flex:1}.model-header{display:flex;align-items:center;gap:.75rem;margin-bottom:.25rem}.model-option .model-name{font-size:1rem;font-weight:600;color:var(--color-textPrimary)}.model-option .model-provider{font-size:.75rem;color:var(--color-textSecondary);background:var(--color-backgroundSecondary);padding:.125rem .5rem;border-radius:12px;border:1px solid var(--color-border)}.model-description{font-size:.875rem;color:var(--color-textSecondary);margin:0 0 .5rem;line-height:1.4}.model-stats{display:flex;gap:1rem}.stat{display:flex;align-items:center;gap:.25rem;font-size:.75rem}.stat-label{color:var(--color-textSecondary);font-weight:500}.stat-value{color:var(--color-textPrimary);font-weight:600;background:var(--color-backgroundSecondary);padding:.125rem .375rem;border-radius:6px;border:1px solid var(--color-border)}.selected-indicator{display:flex;align-items:center;justify-content:center;width:24px;height:24px;background:var(--color-primary);color:#fff;border-radius:50%;box-shadow:var(--shadow-glow)}.dropdown-footer{padding:1rem 1.5rem;border-top:1px solid var(--color-border);background:var(--color-backgroundSecondary)}.footer-note{font-size:.75rem;color:var(--color-textSecondary);margin:0;line-height:1.4;text-align:center}.theme-dark .model-selector-dropdown{background:#1e293bf2;border-color:var(--color-border)}.theme-dark .dropdown-footer{background:#0f172acc}.theme-dark .model-option:hover{background:#33415580}.theme-dark .model-option.selected{background:#00d4ff1a;border-color:var(--color-primary)}.model-selector-dropdown.mobile-modal{position:fixed!important;top:50%!important;left:50%!important;transform:translate(-50%,-50%)!important;min-width:90vw;max-width:400px;width:auto;max-height:80vh;border-radius:20px;z-index:1000}@media (max-width: 768px){.model-selector-dropdown:not(.mobile-modal){position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);min-width:90vw;max-width:400px;width:auto;max-height:80vh;border-radius:20px}.model-option-left{gap:.75rem}.model-option .model-icon{width:32px;height:32px}.model-stats{flex-direction:column;gap:.25rem}.dropdown-header{padding:1rem}.models-list{max-height:50vh}}@media (max-width: 640px){.model-selector-trigger{min-width:140px;padding:.5rem .75rem}.model-selector-dropdown{min-width:95vw;max-width:350px}.model-option{padding:.75rem}.model-description{font-size:.8125rem}.dropdown-header h3{font-size:1rem}.dropdown-header p{font-size:.8125rem}}@media (max-width: 480px){.model-selector-trigger{min-width:120px;padding:.5rem}.model-selector-trigger .model-info{display:none}.model-selector-dropdown{min-width:98vw;max-width:320px;border-radius:16px}.model-option{padding:.5rem}.model-option .model-icon{width:28px;height:28px}.dropdown-header{padding:.75rem}.models-list{max-height:40vh;padding:.25rem}.model-description,.model-stats{display:none}}.models-list::-webkit-scrollbar{width:6px}.models-list::-webkit-scrollbar-track{background:var(--color-backgroundSecondary);border-radius:3px}.models-list::-webkit-scrollbar-thumb{background:var(--color-border);border-radius:3px}.models-list::-webkit-scrollbar-thumb:hover{background:var(--color-borderHover)}.model-option{position:relative;overflow:hidden}.model-option:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.1),transparent);transition:left .5s ease}.model-option:hover:before{left:100%}.model-selector-trigger:focus-visible,.model-option:focus-visible{outline:2px solid var(--color-primary);outline-offset:2px}@media (prefers-contrast: high){.model-selector-trigger{border:2px solid var(--color-border)}.model-option{border:1px solid var(--color-border)}.model-option.selected{border:2px solid var(--color-primary)}}.chatbot-page{display:flex;height:100vh;background:linear-gradient(135deg,var(--color-background) 0%,var(--color-backgroundSecondary) 100%);color:var(--color-textPrimary);overflow:hidden}.chat-sidebar{width:320px;background:var(--color-surface);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-left:1px solid var(--color-border);display:flex;flex-direction:column;z-index:10;order:2}.sidebar-header{padding:20px;border-bottom:1px solid var(--color-border);display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:10px}.sidebar-logo{display:flex;align-items:center;gap:12px;font-weight:700;font-size:1.2rem;color:var(--color-textPrimary);flex:1;min-width:0}.sidebar-actions{display:flex;align-items:center;gap:8px}.sidebar-action-btn{background:var(--color-backgroundSecondary);border:1px solid var(--color-border);color:var(--color-textPrimary);padding:8px;border-radius:8px;cursor:pointer;transition:all .2s ease;display:flex;align-items:center;justify-content:center}.sidebar-action-btn:hover{background:var(--color-surfaceHover);border-color:var(--color-primary);transform:translateY(-1px)}.new-chat-btn{background:linear-gradient(135deg,var(--color-primary),var(--color-secondary));border:none;border-radius:8px;color:#fff;padding:8px;cursor:pointer;transition:all .2s ease;display:flex;align-items:center;justify-content:center}.new-chat-btn:hover{transform:translateY(-1px);box-shadow:var(--shadow-glow)}.sidebar-controls{padding:15px 20px;border-bottom:1px solid var(--color-border)}.model-selector-container,.model-selector-container .model-selector{width:100%}.model-selector-container .model-selector select{width:100%;background:var(--color-backgroundSecondary);border:1px solid var(--color-border);color:var(--color-textPrimary);padding:8px 12px;border-radius:8px;font-size:.9rem}.conversations-list{flex:1;overflow-y:auto;padding:10px}.conversation-item{padding:12px;margin-bottom:8px;border-radius:12px;cursor:pointer;transition:all .2s ease;background:var(--color-backgroundSecondary);border:1px solid transparent;display:flex;align-items:center;justify-content:space-between}.conversation-item:hover{background:var(--color-surfaceHover);border-color:var(--color-border)}.conversation-item.active{background:var(--color-primaryLight);border-color:var(--color-primary)}.conversation-info{display:flex;align-items:center;gap:10px;flex:1;min-width:0}.conversation-details{flex:1;min-width:0}.conversation-title{font-weight:500;font-size:.9rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-bottom:2px}.conversation-time{font-size:.75rem;color:var(--color-textSecondary)}.conversation-actions{display:flex;gap:4px;opacity:0;transition:opacity .2s ease}.conversation-item:hover .conversation-actions{opacity:1}.conversation-actions button{background:none;border:none;color:var(--color-textSecondary);padding:4px;border-radius:4px;cursor:pointer;transition:all .2s ease}.conversation-actions button:hover{color:var(--color-textPrimary);background:var(--color-surfaceHover)}.sidebar-footer{padding:15px 20px;border-top:1px solid rgba(124,58,237,.1)}.connection-status{display:flex;align-items:center;gap:8px;font-size:.85rem;color:var(--gray)}.status-indicator{width:8px;height:8px;border-radius:50%;background:#10b981}.status-indicator.disconnected{background:#ef4444}.status-indicator.error{background:#f59e0b}.chat-main{flex:1;display:flex;flex-direction:column;transition:all .3s ease}.chat-main.with-sidebar,.chat-main.full-width{margin-left:0}.chat-header{display:none}.header-left{display:flex;align-items:center;gap:15px;flex:1}.sidebar-toggle{background:#2d3050b3;border:1px solid rgba(124,58,237,.2);color:var(--light);padding:8px;border-radius:8px;cursor:pointer;transition:all .2s ease}.sidebar-toggle:hover{background:#3f4271b3;border-color:#7c3aed66}.conversation-title{font-weight:600;font-size:1.1rem}.header-center{flex:0 0 auto}.header-right{display:flex;gap:10px;flex:1;justify-content:flex-end}.header-btn{background:#2d3050b3;border:1px solid rgba(124,58,237,.2);color:var(--light);padding:10px;border-radius:8px;cursor:pointer;transition:all .2s ease;display:flex;align-items:center;justify-content:center}.header-btn:hover{background:#3f4271b3;border-color:#7c3aed66;transform:translateY(-1px)}.messages-container{flex:1;overflow-y:auto;padding:25px;display:flex;flex-direction:column;gap:20px;background:#17192e80}.message{max-width:85%;padding:18px;border-radius:18px;line-height:1.6;position:relative;animation:fadeIn .3s ease-out;word-wrap:break-word}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.user-message{background:linear-gradient(135deg,var(--primary),var(--secondary));align-self:flex-end;border-bottom-right-radius:5px;box-shadow:0 4px 15px #6366f14d}.ai-message{background:#2d3050cc;align-self:flex-start;border-bottom-left-radius:5px;box-shadow:0 4px 15px #0003;border:1px solid rgba(124,58,237,.1)}.message-header{display:flex;align-items:center;gap:10px;margin-bottom:12px;font-size:.85rem;font-weight:600}.message-avatar{width:32px;height:32px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:.8rem;flex-shrink:0}.user-avatar{background:#fff3}.ai-avatar{background:#8b5cf64d}.message-text{margin-bottom:8px}.message-text code{background:#0000004d;padding:2px 6px;border-radius:4px;font-family:Courier New,monospace;font-size:.9em}.message-text strong{font-weight:700}.message-text em{font-style:italic}.message-time{font-size:.7rem;opacity:.7;text-align:right;margin-top:8px}.message-actions{display:flex;gap:8px;margin-top:10px;opacity:0;transition:opacity .2s ease}.message:hover .message-actions{opacity:1}.message-action-btn{background:#ffffff1a;border:none;color:var(--light);padding:4px 8px;border-radius:4px;cursor:pointer;font-size:.75rem;transition:all .2s ease}.message-action-btn:hover{background:#fff3}.typing-indicator{display:flex;align-items:center;gap:10px;padding:18px;background:#2d3050cc;align-self:flex-start;border-radius:18px 18px 18px 5px;width:fit-content;border:1px solid rgba(124,58,237,.1)}.typing-animation{display:flex;gap:4px}.typing-dot{width:8px;height:8px;background:var(--secondary);border-radius:50%;animation:typing 1.4s infinite ease-in-out}.typing-dot:nth-child(1){animation-delay:0s}.typing-dot:nth-child(2){animation-delay:.2s}.typing-dot:nth-child(3){animation-delay:.4s}@keyframes typing{0%,60%,to{transform:translateY(0);opacity:.4}30%{transform:translateY(-8px);opacity:1}}.file-preview{padding:15px 25px;background:#1e213ab3;border-top:1px solid rgba(124,58,237,.1);display:flex;gap:10px;flex-wrap:wrap}.file-item{display:flex;align-items:center;gap:8px;background:#2d3050b3;padding:8px 12px;border-radius:8px;border:1px solid rgba(124,58,237,.2)}.file-icon{color:var(--secondary)}.file-name{font-size:.85rem;max-width:150px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.remove-file{background:none;border:none;color:var(--gray);cursor:pointer;padding:2px;border-radius:4px;transition:all .2s ease}.remove-file:hover{color:#ef4444;background:#ef44441a}.input-area{padding:20px 25px;background:#1e213ae6;border-top:1px solid rgba(124,58,237,.1)}.input-container{display:flex;gap:15px;background:transparent;border-radius:16px;padding:12px 18px;align-items:flex-end;border:1px solid var(--color-border);transition:all .2s ease}.input-container:focus-within{border-color:var(--secondary);box-shadow:0 0 0 3px #8b5cf633}textarea{flex:1;background:transparent;border:none;color:var(--light);font-size:1rem;resize:none;max-height:120px;min-height:24px;padding:8px 0;outline:none;font-family:inherit;line-height:1.5}textarea::placeholder{color:var(--gray)}.send-button{width:44px;height:44px;background:linear-gradient(135deg,var(--primary),var(--secondary));border:none;border-radius:50%;color:#fff;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .2s ease;flex-shrink:0}.send-button:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 6px 20px #6366f166}.send-button:disabled{background:#4a4d6e;cursor:not-allowed;transform:none;box-shadow:none}.chat-footer{text-align:center;padding:12px 25px;color:var(--gray);font-size:.8rem;border-top:1px solid rgba(124,58,237,.1);background:#1e213a80}.settings-overlay{position:fixed;inset:0;background:#000000b3;display:flex;align-items:center;justify-content:center;z-index:1000}.settings-modal{background:#1e213af2;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-radius:16px;border:1px solid rgba(124,58,237,.3);width:90%;max-width:500px;max-height:80vh;overflow:hidden}.settings-header{padding:20px 25px;border-bottom:1px solid rgba(124,58,237,.2);display:flex;align-items:center;justify-content:space-between}.settings-header h3{margin:0;font-size:1.3rem;font-weight:600}.settings-header button{background:none;border:none;color:var(--gray);font-size:1.5rem;cursor:pointer;padding:0;width:30px;height:30px;display:flex;align-items:center;justify-content:center;border-radius:50%;transition:all .2s ease}.settings-header button:hover{background:#ffffff1a;color:var(--light)}.settings-content{padding:25px}.setting-group{margin-bottom:20px}.setting-group label{display:block;margin-bottom:8px;font-weight:500;color:var(--light)}.setting-group select,.setting-group input[type=checkbox]{background:#2d3050b3;border:1px solid rgba(124,58,237,.2);color:var(--light);padding:8px 12px;border-radius:8px;font-size:.9rem}.setting-group select{width:100%}.setting-group input[type=checkbox]{width:auto;margin-right:8px}.messages-container::-webkit-scrollbar,.conversations-list::-webkit-scrollbar{width:6px}.messages-container::-webkit-scrollbar-track,.conversations-list::-webkit-scrollbar-track{background:#1e213a4d;border-radius:3px}.messages-container::-webkit-scrollbar-thumb,.conversations-list::-webkit-scrollbar-thumb{background:#7c3aed80;border-radius:3px}.messages-container::-webkit-scrollbar-thumb:hover,.conversations-list::-webkit-scrollbar-thumb:hover{background:#7c3aedb3}.floating-sidebar-toggle{position:fixed;top:20px;right:20px;width:50px;height:50px;background:linear-gradient(135deg,var(--primary),var(--secondary));border:none;border-radius:50%;color:#fff;display:flex;align-items:center;justify-content:center;cursor:pointer;z-index:1000;box-shadow:0 4px 15px #6366f166;transition:all .3s ease}.floating-sidebar-toggle:hover{transform:translateY(-2px);box-shadow:0 6px 20px #6366f199}.floating-sidebar-toggle:active{transform:translateY(0)}.floating-menu-toggle{position:fixed;top:20px;left:20px;width:50px;height:50px;background:linear-gradient(135deg,#4f46e5,#7c3aed);border:none;border-radius:50%;color:#fff;display:flex;align-items:center;justify-content:center;cursor:pointer;z-index:1000;box-shadow:0 4px 15px #4f46e566;transition:all .3s ease}.floating-menu-toggle:hover{transform:translateY(-2px);box-shadow:0 6px 20px #4f46e599}.floating-menu-toggle:active{transform:translateY(0)}@media (max-width: 768px){.chat-sidebar{width:80%;max-width:320px;position:fixed;top:0;right:0;height:100vh;z-index:200;background:#1e213afa;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px)}.chat-main{margin-left:0;width:100%}.chat-main.with-sidebar{margin-left:0}.chat-header{padding:12px 15px}.header-center{display:none}.messages-container{padding:15px}.message{max-width:95%}.input-area{padding:15px}.settings-modal{width:95%;margin:20px}.chat-sidebar+* .floating-sidebar-toggle,.chatbot-page:has(.chat-sidebar) .floating-sidebar-toggle{opacity:0;pointer-events:none;transition:opacity .3s ease}.chat-sidebar:before{content:"";position:fixed;inset:0;background:#00000080;z-index:-1}}@media (max-width: 480px){.chat-sidebar{width:100%}.conversation-title{font-size:1rem}.message{padding:14px;font-size:.9rem}.input-container{padding:10px 14px}.send-button{width:40px;height:40px}}.chatbot-page.light{background:linear-gradient(135deg,#f8fafc,#e2e8f0);color:#1a202c}.chatbot-page.light .chat-sidebar{background:#fffffff2;border-right-color:#cbd5e180}.chatbot-page.light .ai-message{background:#ffffffe6;border-color:#cbd5e14d;color:#1a202c}.chatbot-page.light .conversation-item{background:#f1f5f980}.chatbot-page.light .conversation-item:hover{background:#e2e8f0b3}.chatbot-page.light .input-container{background:#ffffffe6;border-color:#cbd5e14d}.chatbot-page.light textarea{color:#1a202c}.chatbot-page.light .chat-header{background:#fffffff2;border-bottom-color:#cbd5e14d}*{margin:0;padding:0;box-sizing:border-box;font-family:Segoe UI,system-ui,-apple-system,sans-serif}html{font-size:16px;scroll-behavior:smooth;-webkit-text-size-adjust:100%;-ms-text-size-adjust:100%}body{background:linear-gradient(135deg,#0f172a,#1e293b);min-height:100vh;color:#e6e9ff;overflow-x:hidden}:root{--primary: #6366f1;--primary-dark: #4f46e5;--secondary: #8b5cf6;--dark: #1e213a;--darker: #161a2d;--light: #e0e7ff;--gray: #94a3b8;--success: #10b981}a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}button{background:none;border:none;cursor:pointer;color:inherit}input,textarea{font-family:inherit;font-size:inherit}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:#1e213a4d;border-radius:4px}::-webkit-scrollbar-thumb{background:var(--primary);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--secondary)}