:root{--primary-bg: #0A0A0F;--secondary-bg: #1A1A22;--tertiary-bg: #2A2A35;--quaternary-bg: #3A3A45;--accent-blue: #007AFF;--accent-blue-darker: #005BBF;--accent-blue-light: #3399FF;--accent-purple: #8A2BE2;--accent-green: #34C759;--accent-red: #FF3B30;--accent-yellow: #FFCC00;--text-primary: #F0F0F5;--text-secondary: #B0B0C0;--text-tertiary: #808090;--border-color: #3A3A4A;--border-light: #4A4A5A;--shadow-sm: rgba(0, 0, 0, .1);--shadow-md: rgba(0, 0, 0, .2);--shadow-lg: rgba(0, 0, 0, .4);--font-family: "Inter", sans-serif;--font-size-base: 1rem;--line-height-base: 1.6;--spacing-xs: 4px;--spacing-sm: 8px;--spacing-md: 16px;--spacing-lg: 24px;--spacing-xl: 32px;--radius-sm: 4px;--radius-md: 8px;--radius-lg: 12px;--radius-full: 9999px}*{box-sizing:border-box;margin:0;padding:0}html,body,#root{height:100%;overflow:hidden;font-family:var(--font-family);background-color:var(--primary-bg);color:var(--text-primary);font-size:var(--font-size-base);line-height:var(--line-height-base)}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@keyframes slideInFromLeft{0%{opacity:0;transform:translate(-20px)}to{opacity:1;transform:translate(0)}}@keyframes slideInFromRight{0%{opacity:0;transform:translate(20px)}to{opacity:1;transform:translate(0)}}@keyframes pulse{0%{box-shadow:0 0 #007aff66}70%{box-shadow:0 0 0 10px #007aff00}to{box-shadow:0 0 #007aff00}}.login-screen-container{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;padding:var(--spacing-lg);background:radial-gradient(circle at top left,var(--secondary-bg) 0%,transparent 50%),radial-gradient(circle at bottom right,var(--tertiary-bg) 0%,transparent 50%),var(--primary-bg);background-size:100% 100%;animation:backgroundFadeIn 1s ease-out forwards}@keyframes backgroundFadeIn{0%{opacity:0}to{opacity:1}}.login-form-wrapper{background-color:var(--secondary-bg);padding:var(--spacing-xl) var(--spacing-lg);border-radius:var(--radius-lg);box-shadow:0 15px 30px var(--shadow-lg);width:100%;max-width:420px;text-align:center;border:1px solid var(--border-color);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);animation:fadeIn .8s ease-out forwards}.login-logo{width:70px;height:70px;margin-bottom:var(--spacing-md);border-radius:var(--radius-md);box-shadow:0 4px 10px var(--shadow-md);animation:fadeIn .6s ease-out forwards}.login-title{font-size:1.8rem;font-weight:700;margin-bottom:var(--spacing-sm);color:var(--text-primary);letter-spacing:-.02em;animation:fadeIn .7s ease-out forwards}.login-subtitle{font-size:1rem;color:var(--text-secondary);margin-bottom:var(--spacing-xl);animation:fadeIn .8s ease-out forwards}.login-form .input-group{margin-bottom:var(--spacing-lg);text-align:left;animation:fadeIn .9s ease-out forwards}.login-form .input-group label{display:block;font-size:.9rem;color:var(--text-secondary);margin-bottom:var(--spacing-sm)}.login-form .input-group input{width:100%;padding:14px 18px;background-color:var(--tertiary-bg);border:1px solid var(--border-color);border-radius:var(--radius-md);color:var(--text-primary);font-size:1.05rem;transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease}.login-form .input-group input:focus{outline:none;border-color:var(--accent-blue);box-shadow:0 0 0 4px #007aff4d;background-color:var(--quaternary-bg)}.login-button{width:100%;padding:14px 20px;background-color:var(--accent-blue);color:var(--primary-bg);border:none;border-radius:var(--radius-md);font-size:1.1rem;font-weight:700;cursor:pointer;transition:background-color .2s ease,transform .1s ease,box-shadow .2s ease;box-shadow:0 4px 10px var(--shadow-md);animation:fadeIn 1s ease-out forwards}.login-button:hover{background-color:var(--accent-blue-darker);transform:translateY(-2px);box-shadow:0 6px 15px var(--shadow-lg)}.login-button:active{transform:translateY(0);box-shadow:0 2px 5px var(--shadow-sm)}.login-error{color:var(--accent-red);font-size:.9rem;margin-top:var(--spacing-sm);margin-bottom:var(--spacing-md);text-align:center;background-color:#ff3b301a;padding:var(--spacing-sm) var(--spacing-md);border-radius:var(--radius-sm);border:1px solid var(--accent-red);animation:fadeIn .5s ease-out forwards}.chat-app-container,.admin-dashboard-container{display:flex;flex-direction:column;height:100%;background-color:var(--primary-bg)}.chat-header{display:flex;align-items:center;justify-content:space-between;padding:var(--spacing-md) var(--spacing-xl);background-color:var(--secondary-bg);border-bottom:1px solid var(--border-color);flex-shrink:0;height:70px;box-shadow:0 4px 15px var(--shadow-md);z-index:10}.header-left-content{display:flex;align-items:center}.header-logo{width:40px;height:40px;margin-right:var(--spacing-md);border-radius:var(--radius-sm)}.header-title{font-size:1.25rem;font-weight:700;color:var(--text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-right:var(--spacing-md);letter-spacing:-.01em}.header-actions{display:flex;align-items:center;gap:var(--spacing-sm)}.model-selector{display:flex;background-color:var(--tertiary-bg);border-radius:var(--radius-md);border:1px solid var(--border-color);overflow:hidden;margin-right:var(--spacing-md);position:relative;padding:4px;box-shadow:inset 0 1px 3px #0000004d}.model-button{padding:6px 14px;background-color:transparent;border:none;color:var(--text-secondary);font-size:.85rem;font-weight:600;cursor:pointer;transition:background-color .2s ease,color .2s ease,box-shadow .2s ease;flex-grow:1;text-align:center;position:relative;z-index:1;border-radius:var(--radius-sm)}.model-button:hover:not(.selected){background-color:var(--quaternary-bg);color:var(--text-primary)}.model-button.selected{background-color:var(--accent-blue);color:var(--primary-bg);box-shadow:0 2px 8px #007aff66}@media (max-width: 768px){.chat-header{padding:var(--spacing-md);flex-wrap:nowrap;height:auto;align-items:center;justify-content:space-between}.header-left-content{flex-grow:1;flex-shrink:1;flex-basis:auto;justify-content:flex-start;margin-bottom:0;min-width:0}.header-logo{width:36px;height:36px;margin-right:var(--spacing-sm)}.header-title,.logged-in-user-display{display:none}.header-actions{flex-grow:1;flex-shrink:1;flex-basis:auto;justify-content:flex-end;flex-wrap:nowrap;gap:var(--spacing-sm);min-width:0}.model-selector{width:auto;flex-shrink:1;margin-right:var(--spacing-sm);margin-bottom:0;order:0;min-width:0}.model-button{padding:8px 12px;font-size:.85rem}.header-button{padding:var(--spacing-sm);width:40px;height:40px}.header-button svg{width:22px;height:22px}}.header-button{background-color:transparent;border:1px solid var(--border-color);color:var(--text-secondary);padding:var(--spacing-sm);border-radius:var(--radius-md);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background-color .2s ease,color .2s ease,border-color .2s ease,transform .1s ease}.header-button:hover{background-color:var(--tertiary-bg);color:var(--text-primary);border-color:var(--accent-blue-light);transform:translateY(-1px)}.header-button:active{transform:translateY(0)}.header-button svg{width:22px;height:22px;fill:currentColor}.message-list-container{flex-grow:1;overflow-y:auto;padding:var(--spacing-lg);display:flex;flex-direction:column;gap:var(--spacing-md)}.message-list-container::-webkit-scrollbar{width:10px}.message-list-container::-webkit-scrollbar-track{background:var(--primary-bg)}.message-list-container::-webkit-scrollbar-thumb{background:var(--tertiary-bg);border-radius:var(--radius-md)}.message-list-container::-webkit-scrollbar-thumb:hover{background:var(--accent-blue)}.message-item{display:flex;margin-bottom:15px;max-width:75%;opacity:0;transform:translateY(10px);animation:fadeInMessage .3s ease-out forwards}@keyframes fadeInMessage{to{opacity:1;transform:translateY(0)}}.message-item.user{align-self:flex-end;flex-direction:row-reverse}.message-item.ai{align-self:flex-start}.message-avatar{width:40px;height:40px;border-radius:50%;margin:0 var(--spacing-sm);flex-shrink:0;object-fit:cover;border:2px solid var(--border-color)}.user-avatar-bg{background-color:var(--tertiary-bg);display:flex;align-items:center;justify-content:center}.user-avatar-svg{fill:var(--text-secondary);width:24px;height:24px}.message-item.user .user-avatar-svg{fill:var(--text-primary)}.message-content-wrapper{display:flex;flex-direction:column;max-width:100%}.message-item.user .message-content-wrapper{align-self:flex-end;align-items:flex-end}.message-item.ai .message-content-wrapper{align-self:flex-start;align-items:flex-start}.message-bubble{padding:10px 15px;border-radius:18px;font-size:.95rem;line-height:1.5;word-wrap:break-word;white-space:pre-wrap;width:fit-content;max-width:100%}.message-item.user .message-bubble{background-color:#3b82f6;color:#fff;border-bottom-right-radius:4px}.message-item.ai .message-bubble{background-color:#2a2a3a;color:#e0e0e0;border-bottom-left-radius:4px}.message-timestamp{font-size:.8rem;color:var(--text-tertiary);margin-top:2px;padding:0}.message-item.user .message-timestamp{align-self:flex-end}.message-item.ai .message-timestamp{align-self:flex-start}.typing-indicator{display:flex;align-items:center;padding:10px 0}.typing-indicator span{width:10px;height:10px;margin:0 3px;background-color:var(--text-secondary);border-radius:50%;display:inline-block;animation:bounce 1.4s infinite ease-in-out both}.typing-indicator span:nth-child(1){animation-delay:-.32s}.typing-indicator span:nth-child(2){animation-delay:-.16s}@keyframes bounce{0%,80%,to{transform:scale(0)}40%{transform:scale(1)}}.chat-input-area{display:flex;flex-direction:column;align-items:stretch;padding:10px 20px;background-color:var(--secondary-bg);border-top:1px solid var(--border-color);flex-shrink:0;box-shadow:0 -2px 8px var(--shadow-md);z-index:10}.chat-input-controls{display:flex;align-items:flex-end;width:100%;gap:10px}.file-preview-container{display:flex;align-items:center;background-color:var(--tertiary-bg);border-radius:var(--radius-lg);padding:var(--spacing-sm) var(--spacing-md);position:relative;margin-bottom:var(--spacing-md);border:1px solid var(--border-light);box-shadow:0 4px 15px var(--shadow-md);max-width:100%;overflow:hidden;transition:all .2s ease}.file-preview-container:hover{transform:translateY(-px);box-shadow:0 6px 20px var(--shadow-lg);border-color:var(--accent-blue)}.image-preview{max-width:48px;max-height:48px;margin-right:var(--spacing-sm);border-radius:var(--radius-md);object-fit:cover;border:1px solid var(--border-color)}.remove-file-button{background-color:var(--accent-red);color:var(--text-primary);border:1px solid var(--border-color);border-radius:var(--radius-full);width:28px;height:28px;display:flex;align-items:center;justify-content:center;cursor:pointer;position:absolute;top:-14px;right:-14px;font-size:.9rem;font-weight:700;box-shadow:0 2px 8px var(--shadow-md);z-index:100;transition:transform .1s ease}.chat-textarea{flex-grow:1;padding:12px 18px;border:1px solid var(--border-color);border-radius:25px;background-color:var(--tertiary-bg);color:var(--text-primary);font-family:var(--font-family);font-size:1rem;resize:none;overflow-y:hidden;line-height:1.4;width:100%;transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease}.chat-textarea:focus{outline:none;border-color:var(--accent-blue);box-shadow:0 0 0 2px #3b82f64d}.chat-textarea::placeholder{color:var(--text-secondary)}.send-button{background-color:var(--accent-blue);border:none;border-radius:50%;width:44px;height:44px;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:background-color .2s ease,transform .1s ease;flex-shrink:0}.send-button svg{width:20px;height:20px;fill:#fff}.send-button:hover{background-color:var(--accent-blue-darker)}.send-button:active{transform:scale(.95)}.send-button:disabled{background-color:var(--tertiary-bg);cursor:not-allowed}.send-button:disabled svg{fill:var(--text-secondary)}.attach-button{background-color:var(--tertiary-bg);border:1px solid var(--border-color);border-radius:50%;width:44px;height:44px;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:background-color .2s ease,transform .1s ease;flex-shrink:0;font-size:1.2rem;color:var(--text-secondary)}.attach-button:hover{background-color:#3a3a4a;color:var(--text-primary)}.attach-button:active{transform:scale(.95)}.attach-button:disabled{background-color:var(--tertiary-bg);cursor:not-allowed;opacity:.6}.error-message{color:var(--accent-red);text-align:center;padding:var(--spacing-sm) var(--spacing-md);font-size:.95rem;background-color:#ff3b3026;border-radius:var(--radius-md);margin:var(--spacing-md) var(--spacing-xl);max-width:calc(100% - (2 * var(--spacing-xl)));border:1px solid var(--accent-red);box-shadow:0 2px 8px var(--shadow-sm)}.success-message{color:var(--accent-green);text-align:center;padding:var(--spacing-sm) var(--spacing-md);font-size:.95rem;background-color:#34c75926;border-radius:var(--radius-md);margin:var(--spacing-md) var(--spacing-xl);max-width:calc(100% - (2 * var(--spacing-xl)));border:1px solid var(--accent-green);box-shadow:0 2px 8px var(--shadow-sm)}.message-attachment{display:flex;flex-direction:column;gap:var(--spacing-sm);margin-bottom:var(--spacing-xl)}.attached-image-in-chat,.attached-video-in-chat{max-width:150px;max-height:150px;width:auto;height:auto;border-radius:var(--radius-md);object-fit:contain;box-shadow:0 4px 10px var(--shadow-md)}.attached-audio-in-chat{width:100%;max-width:350px}.attached-document-in-chat{display:flex;align-items:center;gap:var(--spacing-sm);padding:var(--spacing-sm) var(--spacing-md);background-color:var(--quaternary-bg);border-radius:var(--radius-md);border:1px solid var(--border-light);color:var(--text-primary);font-size:.95rem;max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;box-shadow:0 2px 8px var(--shadow-sm);transition:background-color .2s ease,border-color .2s ease}.message-item.user .attached-document-in-chat{background-color:var(--quaternary-bg);border-color:var(--border-light)}.attached-document-in-chat:hover{background-color:var(--tertiary-bg);border-color:var(--accent-blue-light)}.attached-document-in-chat .file-icon{flex-shrink:0;display:flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:var(--radius-sm);background-color:var(--primary-bg)}.attached-document-in-chat .file-icon svg{width:20px;height:20px;fill:var(--accent-blue-light)}.attached-document-in-chat .file-link{color:var(--text-primary);text-decoration:none;display:flex;align-items:center;flex-grow:1;overflow:hidden}.attached-document-in-chat .file-name{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;flex-grow:1}.file-preview-container{display:flex;align-items:center;background-color:var(--tertiary-bg);border-radius:var(--radius-md);padding:var(--spacing-sm) var(--spacing-md);position:relative;margin-bottom:var(--spacing-md);border:1px solid var(--border-color);max-width:100%;overflow:hidden;box-shadow:0 2px 8px var(--shadow-sm)}.file-icon-preview{flex-shrink:0;width:48px;height:48px;display:flex;align-items:center;justify-content:center;margin-right:var(--spacing-sm);border-radius:var(--radius-sm);background-color:var(--primary-bg)}.file-icon-preview svg{width:24px;height:24px;fill:var(--accent-blue-light)}.attached-file-name{font-size:.95rem;color:var(--text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;flex-grow:1}.remove-file-button{background-color:var(--accent-red);color:var(--text-primary);border:1px solid var(--border-color);border-radius:var(--radius-full);width:28px;height:28px;display:flex;align-items:center;justify-content:center;cursor:pointer;position:absolute;top:0;right:0;transform:translate(50%,-50%);font-size:.9rem;font-weight:700;box-shadow:0 2px 8px var(--shadow-md);z-index:100;transition:transform .1s ease}.remove-file-button:hover{transform:scale(1.1)}.logged-in-user-display{font-size:.95rem;color:var(--text-secondary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;padding:4px 8px;background-color:var(--tertiary-bg);border-radius:var(--radius-md);border:1px solid var(--border-color)}.admin-main-content{flex-grow:1;padding:var(--spacing-xl);overflow-y:auto}.admin-main-content h2{font-size:2rem;font-weight:700;margin-bottom:var(--spacing-md);color:var(--text-primary);letter-spacing:-.02em}.admin-main-content p{font-size:1rem;line-height:1.6;margin-bottom:var(--spacing-lg);color:var(--text-secondary)}.admin-history-placeholder{background-color:var(--secondary-bg);padding:var(--spacing-lg);border-radius:var(--radius-md);border:1px dashed var(--border-color);margin-top:var(--spacing-xl);text-align:center}.admin-history-placeholder h3{font-size:1.3rem;color:var(--text-primary);margin-bottom:var(--spacing-sm)}.admin-history-placeholder p{font-size:.9rem;color:var(--text-secondary);margin-bottom:var(--spacing-sm)}.admin-history-placeholder p:last-child{margin-bottom:0}.chat-history-layout{display:grid;grid-template-columns:350px 1fr;height:calc(100vh - 70px - (2 * var(--spacing-xl)));gap:var(--spacing-lg);padding:0 var(--spacing-xl) var(--spacing-xl) var(--spacing-xl)}@media (max-width: 900px){.chat-history-layout{grid-template-columns:1fr;grid-template-rows:auto 1fr;height:auto;overflow-y:auto;padding:var(--spacing-md);gap:var(--spacing-md)}.chat-sessions-list{max-height:300px}.chat-sessions-list.hidden-on-mobile,.selected-chat-view.hidden-on-mobile{display:none}.selected-chat-view{position:fixed;top:0;left:0;width:100%;height:100%;z-index:20;border-radius:0;padding:var(--spacing-md);box-shadow:none}.selected-chat-view .message-list-container{padding-bottom:80px}.chat-view-header{padding-top:var(--spacing-md)}}.back-button{margin-right:var(--spacing-sm);background-color:var(--tertiary-bg);border-color:var(--border-color)}.back-button:hover{background-color:var(--quaternary-bg);border-color:var(--accent-blue-light)}.chat-sessions-list{background-color:var(--secondary-bg);border-radius:var(--radius-lg);padding:var(--spacing-lg);overflow-y:auto;border:1px solid var(--border-color);box-shadow:0 6px 20px var(--shadow-md)}@media (max-width: 900px){.chat-sessions-list{height:100%;max-height:none}}.chat-sessions-list h3{font-size:1.5rem;font-weight:700;color:var(--text-primary);margin-bottom:var(--spacing-lg);padding-bottom:var(--spacing-md);border-bottom:1px solid var(--border-color)}.filters-container{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:var(--spacing-lg);margin-bottom:var(--spacing-lg);padding-bottom:var(--spacing-md);border-bottom:1px solid var(--border-color);align-items:center}.filters-container input[type=text],.filters-container input[type=date]{width:100%;padding:14px 18px;background-color:var(--tertiary-bg);border:1px solid var(--border-color);border-radius:var(--radius-md);color:var(--text-primary);font-size:1.05rem;font-weight:500;transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease}.filters-container input[type=text]:focus,.filters-container input[type=date]:focus{outline:none;border-color:var(--accent-blue);box-shadow:0 0 0 4px #007aff4d;background-color:var(--quaternary-bg)}.filters-container .admin-button{padding:14px 22px;font-size:1rem;font-weight:600;border-radius:var(--radius-md);height:auto;min-width:120px;box-shadow:0 2px 8px var(--shadow-sm)}.chat-sessions-list ul,.session-list-items{list-style:none;padding:0;margin:0}.session-item{background-color:var(--tertiary-bg);padding:var(--spacing-md);border-radius:var(--radius-md);margin-bottom:var(--spacing-sm);cursor:pointer;transition:background-color .2s ease,border-color .2s ease,transform .1s ease,box-shadow .2s ease;border:1px solid transparent;box-shadow:0 2px 8px var(--shadow-sm)}.session-item:hover{background-color:var(--quaternary-bg);transform:translateY(-2px);border-color:var(--border-light);box-shadow:0 4px 12px var(--shadow-md)}.session-item.selected{background-color:var(--accent-blue);border-color:var(--accent-blue-darker);color:var(--primary-bg);box-shadow:0 4px 15px #007aff66;transform:translateY(-1px)}.session-item.selected h4,.session-item.selected p,.session-item.selected .session-timestamp{color:var(--primary-bg)}.session-item h4{font-size:1.15rem;font-weight:600;margin-bottom:var(--spacing-xs);color:var(--text-primary)}.last-message-preview{font-size:.9rem;color:var(--text-secondary);margin-bottom:var(--spacing-xs);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.session-timestamp{font-size:.8rem;color:var(--text-tertiary);display:block;text-align:right}.selected-chat-view{flex-grow:1;background-color:var(--secondary-bg);border-radius:var(--radius-lg);padding:var(--spacing-xl);display:flex;flex-direction:column;border:1px solid var(--border-color);box-shadow:0 6px 20px var(--shadow-md)}.selected-chat-view h2{font-size:1.8rem;font-weight:700;color:var(--text-primary);margin-bottom:var(--spacing-md);padding-bottom:var(--spacing-md);border-bottom:1px solid var(--border-color);letter-spacing:-.02em}.selected-chat-view .message-list-container{padding:0;flex-grow:1;overflow-y:auto}.selected-chat-view .message-item{max-width:100%}.select-chat-prompt{text-align:center;color:var(--text-secondary);font-size:1.1rem;margin-top:var(--spacing-xl)}.admin-section{background-color:var(--secondary-bg);border-radius:var(--radius-lg);padding:var(--spacing-xl);margin-bottom:var(--spacing-lg);border:1px solid var(--border-color);box-shadow:0 6px 20px var(--shadow-md)}.admin-section h3{font-size:1.5rem;font-weight:700;color:var(--text-primary);margin-bottom:var(--spacing-lg);padding-bottom:var(--spacing-md);border-bottom:1px solid var(--border-color)}.admin-section h4{font-size:1.2rem;color:var(--text-primary);margin-top:var(--spacing-lg);margin-bottom:var(--spacing-md)}.user-form{display:flex;flex-direction:column;gap:var(--spacing-md);margin-bottom:var(--spacing-xl);padding:var(--spacing-lg);background-color:var(--tertiary-bg);border-radius:var(--radius-md);border:1px solid var(--border-color);box-shadow:0 2px 10px var(--shadow-sm)}.user-form.edit-form{margin-top:var(--spacing-lg);border-color:var(--accent-blue)}.user-form .input-group{margin-bottom:0}.user-form label{font-size:.9rem;color:var(--text-secondary);margin-bottom:var(--spacing-xs);display:block}.input-help-text{font-size:.8rem;color:var(--text-tertiary);margin-top:var(--spacing-xs);margin-left:var(--spacing-xs)}.user-form input[type=text],.user-form input[type=password],.user-form select{width:100%;padding:12px 16px;background-color:var(--primary-bg);border:1px solid var(--border-color);border-radius:var(--radius-md);color:var(--text-primary);font-size:1rem;transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease}.user-form input[type=text]:focus,.user-form input[type=password]:focus,.user-form select:focus{outline:none;border-color:var(--accent-blue);box-shadow:0 0 0 3px #007aff33;background-color:var(--quaternary-bg)}.admin-button{padding:12px 20px;background-color:var(--accent-blue);color:var(--primary-bg);border:none;border-radius:var(--radius-md);font-size:1rem;font-weight:600;cursor:pointer;transition:background-color .2s ease,transform .1s ease,box-shadow .2s ease;align-self:flex-start;box-shadow:0 2px 8px var(--shadow-sm)}.admin-button:hover{background-color:var(--accent-blue-darker);transform:translateY(-1px);box-shadow:0 4px 12px var(--shadow-md)}.form-actions{display:flex;gap:var(--spacing-sm);margin-top:var(--spacing-md);justify-content:flex-end}.admin-button.small{padding:8px 14px;font-size:.9rem;margin-right:0}.admin-button.delete{background-color:var(--accent-red);color:var(--primary-bg)}.admin-button.delete:hover{background-color:var(--accent-red);transform:translateY(-1px)}.admin-button.secondary{background-color:var(--tertiary-bg);color:var(--text-primary);border:1px solid var(--border-color)}.admin-button.secondary:hover{background-color:var(--quaternary-bg);transform:translateY(-1px);border-color:var(--border-light)}.users-table{width:100%;border-collapse:separate;border-spacing:0;margin-top:var(--spacing-lg);border-radius:var(--radius-md);overflow:hidden;box-shadow:0 4px 15px var(--shadow-md)}.users-table th,.users-table td{text-align:left;padding:var(--spacing-md) var(--spacing-lg);border-bottom:1px solid var(--border-color);color:var(--text-primary)}.users-table th{background-color:var(--tertiary-bg);font-weight:600;font-size:.95rem;text-transform:uppercase;letter-spacing:.05em;position:sticky;top:0;z-index:1}.users-table tr:last-child td{border-bottom:none}.users-table tbody tr:hover{background-color:#007aff14}.users-table td button{margin-right:0}.user-role-badge{display:inline-block;padding:4px 10px;border-radius:var(--radius-full);font-size:.75rem;font-weight:700;text-transform:uppercase;color:var(--primary-bg);letter-spacing:.05em}.user-role-badge.admin_user{background-color:var(--accent-blue-light)}.user-role-badge.ams_user{background-color:var(--text-secondary)}.icon-button{background-color:var(--tertiary-bg);border:1px solid var(--border-color);color:var(--text-secondary);padding:var(--spacing-sm);border-radius:var(--radius-md);display:inline-flex;align-items:center;justify-content:center;transition:background-color .2s ease,color .2s ease,border-color .2s ease,transform .1s ease}.icon-button:hover{background-color:var(--quaternary-bg);color:var(--text-primary);border-color:var(--accent-blue-light);transform:translateY(-1px)}.icon-button svg{width:20px;height:20px;fill:currentColor}.user-actions{display:flex;gap:var(--spacing-sm);align-items:center}.session-list-items{list-style:none;padding:0;margin:0}.session-info{flex-grow:1;overflow:hidden}.chat-view-header{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:var(--spacing-lg);padding-bottom:var(--spacing-md);border-bottom:1px solid var(--border-color)}.chat-session-date{font-size:.95rem;color:var(--text-secondary);white-space:nowrap;margin-left:var(--spacing-md);background-color:var(--tertiary-bg);padding:4px 8px;border-radius:var(--radius-md);border:1px solid var(--border-color)}.date-filter-group{display:flex;flex-direction:column;width:100%}.date-filter-group label{font-size:.9rem;color:var(--text-secondary);margin-bottom:var(--spacing-xs)}.image-preview-modal{position:fixed;top:0;left:0;width:100%;height:100%;background-color:#000c;display:flex;justify-content:center;align-items:center;z-index:1000;backdrop-filter:blur(5px);-webkit-backdrop-filter:blur(5px)}.modal-content{position:relative;background-color:var(--secondary-bg);padding:var(--spacing-md);border-radius:var(--radius-lg);box-shadow:0 10px 30px var(--shadow-lg);max-width:90%;max-height:90%;display:flex;justify-content:center;align-items:center}.modal-image{max-width:100%;max-height:100%;object-fit:contain;border-radius:var(--radius-md)}.close-modal-button{position:absolute;top:var(--spacing-md);right:var(--spacing-md);background-color:var(--tertiary-bg);border:1px solid var(--border-color);color:var(--text-primary);border-radius:50%;width:40px;height:40px;display:flex;justify-content:center;align-items:center;cursor:pointer;font-size:1.2rem;box-shadow:0 2px 8px var(--shadow-md);transition:background-color .2s ease,transform .1s ease}.close-modal-button:hover{background-color:var(--quaternary-bg);transform:scale(1.1)}.close-modal-button svg{width:24px;height:24px;fill:currentColor}