.sentiment-badge{display:inline-flex;align-items:center;gap:4px;padding:4px 8px;border-radius:12px;font-size:.75rem;font-weight:500;transition:all .2s ease}.sentiment-icon{font-size:1rem;line-height:1}.sentiment-label{text-transform:capitalize}.sentiment-badge-positive{background-color:#d4edda;color:#155724;border:1px solid #c3e6cb}.sentiment-badge-negative{background-color:#f8d7da;color:#721c24;border:1px solid #f5c6cb}.sentiment-badge-neutral{background-color:#e2e3e5;color:#383d41;border:1px solid #d6d8db}@medi a (max-width: 768px){.sentiment-badge {padding: 3px 6px; font-size: .7rem;} .sentiment-icon {font-size: .9rem;}}@media (max-width: 480px){.sentiment-badge{padding:2px 5px;font-size:.65rem}.sentiment-icon{font-size:.85rem}}.message-actions-container{position:absolute;top:-12px;right:10px;z-index:10}.message-user .message-actions-container{right:auto;left:10px}.message-actions{display:flex;gap:6px;background:#fffffff2;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);padding:4px;border-radius:12px;box-shadow:0 4px 12px #00000026;animation:fadeInActions .2s ease}@keyframes fadeInActions{0%{opacity:0;transform:translateY(-5px)}to{opacity:1;transform:translateY(0)}}.action-btn{width:28px;height:28px;border:none;background:transparent;border-radius:8px;cursor:pointer;font-size:.9rem;display:flex;align-items:center;justify-content:center;transition:all .2s ease}.action-btn:hover{background:#667eea1a;transform:scale(1.1)}.copy-btn.copied{color:#28a745}.delete-btn:hover{background:#dc35451a}@med ia (max-width: 768px){.message-actions-container {top: -10px;} .message-actions {padding: 3px; gap: 4px;} .action-btn {width: 26px; height: 26px; font-size: .85rem;}}@media (max-width: 480px){.message-actions-container{top:-8px}.message-actions{padding:2px;gap:3px}.action-btn{width:24px;height:24px;font-size:.8rem}}.emoji-reactions-container{position:absolute;bottom:-16px;left:10px;z-index:10}.selected-reaction{display:inline-flex;align-items:center;justify-content:center;width:32px;height:32px;background:#fffffff2;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:50%;font-size:1.2rem;box-shadow:0 2px 8px #00000026;animation:reactionPop .3s cubic-bezier(.68,-.55,.265,1.55)}@keyframes reactionPop{0%{transform:scale(0)}50%{transform:scale(1.2)}to{transform:scale(1)}}.emoji-reactions-picker{display:flex;gap:6px;background:#fffffff2;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);padding:6px;border-radius:20px;box-shadow:0 4px 16px #00000026;animation:slideUp .2s ease}@keyframes slideUp{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.reaction-btn{width:36px;height:36px;border:none;background:transparent;border-radius:50%;font-size:1.3rem;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .2s ease}.reaction-btn:hover{background:#667eea1a;transform:scale(1.2)}.reaction-btn.selected{background:#667eea33;transform:scale(1.1)}@media (max-width: 768px){.emoji-reactions-container{bottom:-14px}.selected-reaction{width:28px;height:28px;font-size:1.1rem}.emoji-reactions-picker{gap:4px;padding:4px}.reaction-btn{width:32px;height:32px;font-size:1.2rem}}@media (max-width: 480px){.emoji-reactions-container{bottom:-12px}.selected-reaction{width:26px;height:26px;font-size:1rem}.emoji-reactions-picker{gap:3px;padding:3px}.reaction-btn{width:30px;height:30px;font-size:1.1rem}}.message{display:flex;margin-bottom:16px;position:relative;z-index:3}.message-user{animation:slideInRight .4s cubic-bezier(.4,0,.2,1)}.message-bot{animation:slideInLeft .4s cubic-bezier(.4,0,.2,1)}@keyframes slideInRight{0%{opacity:0;transform:translate(30px)}to{opacity:1;transform:translate(0)}}@keyframes slideInLeft{0%{opacity:0;transform:translate(-30px)}to{opacity:1;transform:translate(0)}}.message-user{justify-content:flex-end}.message-bot{justify-content:flex-start}.message-content{max-width:70%;padding:16px 20px;border-radius:24px;backdrop-filter:blur(20px) saturate(180%);-webkit-backdrop-filter:blur(20px) saturate(180%);box-shadow:0 8px 32px #0000001a,inset 0 1px 1px #ffffff80,inset 0 -1px 1px #0000000d;border:1px solid rgba(255,255,255,.3);position:relative}.message-content:before{content:"";position:absolute;top:0;left:0;right:0;height:50%;background:linear-gradient(180deg,#ffffff4d,#fff0);border-radius:24px 24px 0 0;pointer-events:none}.message-user .message-content{background:linear-gradient(135deg,#667eeab3,#764ba2b3);color:#fff;border:1px solid rgba(255,255,255,.4)}.message-bot .message-content{background:#ffffff40;color:#1a1a1a;border:1px solid rgba(255,255,255,.5)}.message-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:6px;font-size:.75rem;opacity:.8}.message-sender{font-weight:600}.message-timestamp{font-size:.7rem}.message-text{line-height:1.6;word-wrap:break-word;position:relative;z-index:1}.message-bot .message-text{text-shadow:0 1px 2px rgba(255,255,255,.8);font-weight:500}.message-sentiment{margin-top:8px;display:flex;align-items:center;gap:8px;justify-content:flex-start}.message-user .message-sentiment{justify-content:flex-end}.sentiment-emoji{font-size:1.3rem;animation:emojiPop .5s cubic-bezier(.68,-.55,.265,1.55)}@keyframes emojiPop{0%{transform:scale(0);opacity:0}50%{transform:scale(1.2)}to{transform:scale(1);opacity:1}}@media (max-width: 768px){.message-content{max-width:85%;padding:12px 16px;font-size:.95rem}.message-header{font-size:.7rem}.message-timestamp{font-size:.65rem}.sentiment-emoji{font-size:1.1rem}}@media (max-width: 480px){.message-content{max-width:90%;padding:10px 14px;font-size:.9rem}.message-header{font-size:.65rem;margin-bottom:4px}.message-text{line-height:1.5}.sentiment-emoji{font-size:1rem}}.conversation-summary{background:#ffffff40;backdrop-filter:blur(20px) saturate(180%);-webkit-backdrop-filter:blur(20px) saturate(180%);border-radius:20px;padding:20px;margin:20px 0;border:1px solid rgba(255,255,255,.4);position:relative;z-index:4;box-shadow:0 8px 32px #0000001a,inset 0 1px 1px #ffffff80}.conversation-summary:before{content:"";position:absolute;top:0;left:0;right:0;height:50%;background:linear-gradient(180deg,#fff3,#fff0);border-radius:20px 20px 0 0;pointer-events:none}.summary-title{font-size:1.25rem;font-weight:700;margin:0 0 16px;color:#1a1a1a;text-shadow:0 1px 2px rgba(255,255,255,.8);position:relative;z-index:1}.summary-overall{display:flex;align-items:center;gap:12px;margin-bottom:12px}.summary-label{font-weight:600;color:#2a2a2a;text-shadow:0 1px 2px rgba(255,255,255,.8);position:relative;z-index:1}.summary-explanation{color:#3a3a3a;font-size:.9rem;margin:12px 0;line-height:1.5;text-shadow:0 1px 2px rgba(255,255,255,.8);position:relative;z-index:1}.summary-distribution{margin-top:20px}.distribution-title{font-size:1rem;font-weight:600;margin:0 0 12px;color:#495057}.distribution-item{margin-bottom:16px}.distribution-label{display:flex;align-items:center;gap:8px;margin-bottom:6px;font-size:.9rem;color:#495057}.distribution-icon{font-size:1.2rem}.distribution-count{margin-left:auto;font-weight:500;color:#212529}.distribution-bar{height:8px;background-color:#e9ecef;border-radius:4px;overflow:hidden}.distribution-fill{height:100%;transition:width .3s ease;border-radius:4px}.distribution-fill-positive{background-color:#28a745}.distribution-fill-neutral{background-color:#6c757d}.distribution-fill-negative{background-color:#dc3545}@media (max-width: 768px){.conversation-summary{padding:16px;margin:16px 0}.summary-title{font-size:1.1rem}.summary-explanation,.distribution-label{font-size:.85rem}.distribution-icon{font-size:1.1rem}}@media (max-width: 480px){.conversation-summary{padding:12px;margin:12px 0;border-radius:16px}.summary-title{font-size:1rem}.summary-explanation{font-size:.8rem}.distribution-title{font-size:.9rem}.distribution-label{font-size:.8rem}}.conversation-stats{background:#ffffff40;-webkit-backdrop-filter:blur(20px) saturate(180%);backdrop-filter:blur(20px) saturate(180%);border-radius:20px;padding:20px;margin:20px 0;border:1px solid rgba(255,255,255,.4);box-shadow:0 8px 32px #0000001a}.stats-title{font-size:1.3rem;font-weight:700;color:#1a1a1a;margin:0 0 20px;text-shadow:0 1px 2px rgba(255,255,255,.8)}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(120px,1fr));gap:12px;margin-bottom:24px}.stat-card{background:#fff6;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:12px;padding:16px;text-align:center;border:1px solid rgba(255,255,255,.5)}.stat-value{font-size:2rem;font-weight:700;background:linear-gradient(135deg,#667eea,#764ba2);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:4px}.stat-label{font-size:.85rem;color:#4a4a4a;font-weight:500;text-shadow:0 1px 2px rgba(255,255,255,.8)}.sentiment-stats h4{font-size:1.1rem;font-weight:600;color:#2a2a2a;margin:0 0 16px;text-shadow:0 1px 2px rgba(255,255,255,.8)}.sentiment-bars{display:flex;flex-direction:column;gap:12px}.sentiment-bar-item{display:grid;grid-template-columns:100px 1fr 40px;align-items:center;gap:12px}.sentiment-bar-label{font-size:.9rem;font-weight:500;color:#2a2a2a;text-shadow:0 1px 2px rgba(255,255,255,.8)}.sentiment-bar-track{height:8px;background:#fff6;border-radius:4px;overflow:hidden}.sentiment-bar-fill{height:100%;border-radius:4px;transition:width .5s ease}.sentiment-bar-fill.positive{background:linear-gradient(90deg,#28a745,#20c997)}.sentiment-bar-fill.neutral{background:linear-gradient(90deg,#6c757d,#adb5bd)}.sentiment-bar-fill.negative{background:linear-gradient(90deg,#dc3545,#fd7e14)}.sentiment-bar-count{font-size:.9rem;font-weight:600;color:#2a2a2a;text-align:right;text-shadow:0 1px 2px rgba(255,255,255,.8)}@media (max-width: 768px){.stats-grid{grid-template-columns:repeat(2,1fr)}.sentiment-bar-item{grid-template-columns:80px 1fr 30px;gap:8px}}@med ia (max-width: 480px){.conversation-stats {padding: 16px; margin: 16px 0; border-radius: 16px;} .stats-title {font-size: 1.1rem; margin-bottom: 16px;} .stats-grid {grid-template-columns: repeat(2,1fr); gap: 10px;} .stat-card {padding: 12px;} .stat-value {font-size: 1.6rem;} .stat-label {font-size: .75rem;} .sentiment-stats h4 {font-size: 1rem; margin-bottom: 12px;} .sentiment-bar-item {grid-template-columns: 70px 1fr 28px; gap: 6px;} .sentiment-bar-label {font-size: .8rem;} .sentiment-bar-count {font-size: .8rem;}}.typing-indicator{display:flex;align-items:center;gap:12px;padding:12px 18px!important;min-width:120px}.typing-dots{display:flex;gap:6px;align-items:center}.typing-dots .dot{width:8px;height:8px;border-radius:50%;background:linear-gradient(135deg,#667eea,#764ba2);animation:typingBounce 1.4s infinite ease-in-out;box-shadow:0 2px 4px #667eea4d}.typing-dots .dot:nth-child(1){animation-delay:0s}.typing-dots .dot:nth-child(2){animation-delay:.2s}.typing-dots .dot:nth-child(3){animation-delay:.4s}.typing-text{font-size:.85rem;color:#6c757d;font-style:italic}@keyframes typingBounce{0%,60%,to{transform:translateY(0)}30%{transform:translateY(-10px)}}@me dia (max-width: 768px){.typing-indicator {padding: 10px 14px !important; min-width: 100px;} .typing-dots .dot {width: 7px; height: 7px;} .typing-text {font-size: .8rem;}}@media (max-width: 480px){.typing-indicator{padding:8px 12px!important;min-width:90px}.typing-dots .dot{width:6px;height:6px;gap:4px}.typing-text{font-size:.75rem}}.theme-toggle{width:40px;height:40px;border-radius:50%;border:2px solid rgba(255,255,255,.5);background:#fff3;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);color:#fff;font-size:1.2rem;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .3s ease}.theme-toggle:hover{background:#ffffff4d;transform:rotate(180deg) scale(1.1)}@media (max-width: 768px){.theme-toggle{width:32px;height:32px;font-size:1rem}}@media (max-width: 480px){.theme-toggle{width:28px;height:28px;font-size:.9rem}}.sound-toggle{width:40px;height:40px;border-radius:50%;border:2px solid 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#28a74500}}@media (max-width: 768px){.tts-toggle{width:32px;height:32px;font-size:1rem}}@media (max-width: 480px){.tts-toggle{width:28px;height:28px;font-size:.9rem}}.voice-input-btn{width:44px;height:44px;border-radius:50%;border:2px solid rgba(102,126,234,.5);background:#ffffff4d;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .3s ease;box-shadow:0 2px 8px #0000001a;padding:8px}.mic-icon{width:100%;height:100%;object-fit:contain;filter:brightness(0) saturate(100%) invert(45%) sepia(93%) saturate(1352%) hue-rotate(224deg) brightness(98%) contrast(92%);transition:all .3s ease}.voice-input-btn:hover{background:#fff6;transform:scale(1.05);box-shadow:0 4px 12px #667eea4d}.voice-input-btn:hover .mic-icon{filter:brightness(0) saturate(100%) invert(35%) sepia(93%) saturate(1352%) hue-rotate(224deg) brightness(108%) contrast(92%)}.voice-input-btn.listening{background:linear-gradient(135deg,#667eea,#764ba2);border-color:#fff;animation:pulse 1.5s infinite}.voice-input-btn.listening .mic-icon{filter:brightness(0) saturate(100%) invert(100%)}@keyframes pulse{0%,to{transform:scale(1);box-shadow:0 0 #667eeab3}50%{transform:scale(1.05);box-shadow:0 0 0 10px #667eea00}}@media (max-width: 768px){.voice-input-btn{width:44px;height:44px}}@media (max-width: 480px){.voice-input-btn{width:44px;height:44px}}.language-selector{position:relative}.language-btn{width:40px;height:40px;border-radius:50%;border:2px solid rgba(255,255,255,.5);background:#fff3;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .3s ease}.language-btn:hover{background:#ffffff4d;transform:scale(1.05)}.lang-flag{font-size:1.3rem}.language-backdrop{position:fixed;top:0;left:0;right:0;bottom:0;z-index:998}.language-dropdown{position:absolute;top:50px;right:0;background:#fffffff2;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-radius:12px;padding:8px;min-width:180px;box-shadow:0 8px 32px #0003;z-index:999;animation:dropdownSlide .2s ease}@keyframes dropdownSlide{0%{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}.language-option{display:flex;align-items:center;gap:12px;width:100%;padding:10px 12px;border:none;background:transparent;border-radius:8px;cursor:pointer;transition:all .2s ease;text-align:left}.language-option:hover{background:#667eea1a}.language-option.active{background:#667eea26}.lang-name{flex:1;font-size:.9rem;font-weight:500;color:#2a2a2a}.check-mark{color:#667eea;font-weight:700}@m edia (max-width: 768px){.language-btn {width: 32px; height: 32px;} .lang-flag {font-size: 1.1rem;} .language-dropdown {top: 42px; min-width: 160px;} .language-option {padding: 8px 10px;} .lang-name {font-size: .85rem;}}@media (max-width: 480px){.language-btn{width:28px;height:28px}.lang-flag{font-size:1rem}.language-dropdown{top:38px;min-width:140px;right:-10px}.language-option{padding:6px 8px;gap:8px}.lang-name{font-size:.8rem}}.image-upload-btn{width:44px;height:44px;border-radius:50%;border:2px solid rgba(102,126,234,.5);background:#ffffff4d;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);color:#667eea;font-size:1.3rem;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .3s ease;box-shadow:0 2px 8px #0000001a}.image-upload-btn:hover{background:#fff6;transform:scale(1.05);box-shadow:0 4px 12px #667eea4d}.image-preview-container{position:relative;display:inline-block;margin:8px 0}.image-preview{max-width:300px;max-height:300px;border-radius:12px;box-shadow:0 4px 12px #00000026}.image-remove-btn{position:absolute;top:-8px;right:-8px;width:24px;height:24px;border-radius:50%;border:none;background:#dc3545;color:#fff;font-size:.9rem;cursor:pointer;display:flex;align-items:center;justify-content:center;box-shadow:0 2px 8px #0003;transition:all .2s ease}@media (max-width: 768px){.image-upload-btn{width:44px;height:44px;font-size:1.2rem}.image-preview{max-width:200px;max-height:200px}}@media (max-width: 480px){.image-upload-btn{width:44px;height:44px;font-size:1.1rem}.image-preview{max-width:150px;max-height:150px}}.chat-interface{display:flex;flex-direction:column;height:100vh;height:100dvh;width:100%;background:transparent;position:relative;overflow:hidden}.header-toggle-btn{position:fixed;top:10px;right:10px;width:40px;height:40px;border-radius:50%;border:2px solid rgba(255,255,255,.5);background:#ffffff40;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);color:#fff;font-size:1.2rem;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .3s ease;z-index:1000;box-shadow:0 4px 12px #0003}.header-toggle-btn:hover{background:#ffffff59;transform:scale(1.1);box-shadow:0 6px 16px #0000004d}.header-toggle-btn:active{transform:scale(.95)}.dark-mode .header-toggle-btn{background:#0006;border-color:#ffffff4d}.dark-mode .header-toggle-btn:hover{background:#00000080}.chat-header{display:flex;justify-content:space-between;align-items:center;padding:16px 20px;background:#fff3;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);color:#fff;box-shadow:0 2px 8px #0000001a;position:relative;z-index:10;gap:20px}.header-left,.header-right{display:flex;align-items:center;gap:16px}.sidebar-toggle{width:40px;height:40px;border-radius:8px;border:2px solid 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4px 15px #f5576c80}.summary-button{padding:10px 20px;background:#ffffffe6;color:#667eea;border:2px solid rgba(255,255,255,.5);border-radius:20px;font-weight:600;cursor:pointer;transition:all .3s ease;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.summary-button:hover:not(:disabled){background:#fff;transform:translateY(-2px);box-shadow:0 4px 15px #ffffff4d}.summary-button:disabled{opacity:.5;cursor:not-allowed}.chat-error{display:flex;align-items:center;gap:12px;padding:12px 20px;background-color:#f8d7da;color:#721c24;border-bottom:1px solid 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