:root{--chat-keyboard-inset-top: env(keyboard-inset-top, 0px);--chat-keyboard-inset-right: env(keyboard-inset-right, 0px);--chat-keyboard-inset-bottom: env(keyboard-inset-bottom, 0px);--chat-keyboard-inset-left: env(keyboard-inset-left, 0px);--chat-keyboard-inset-width: env(keyboard-inset-width, 0px);--chat-keyboard-inset-height: env(keyboard-inset-height, 0px);--chat-safe-area-top: env(safe-area-inset-top, 0px);--chat-safe-area-right: env(safe-area-inset-right, 0px);--chat-safe-area-bottom: env(safe-area-inset-bottom, 0px);--chat-safe-area-left: env(safe-area-inset-left, 0px);--chat-mobile-padding: 16px;--chat-header-height: 60px;--chat-input-height: 60px;--chat-min-touch-target: 44px;--chat-viewport-height: 100%;--chat-viewport-width: 100%;--chat-keyboard-offset: 0px}.chat-embed{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;display:flex;flex-direction:column;background:var(--chat-background, #ffffff);color:var(--chat-text, #333333);box-sizing:border-box;position:relative;width:var(--chat-width, 350px);height:var(--chat-height, 500px);border:1px solid #e1e5e9;border-radius:12px;box-shadow:0 4px 20px #0000001a;overflow:hidden;-webkit-text-size-adjust:100%;text-size-adjust:100%;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.chat-embed--mobile{position:fixed!important;top:0!important;left:0!important;right:0!important;bottom:0!important;width:100%!important;height:100%!important;max-width:none!important;max-height:none!important;border:none!important;border-radius:0!important;box-shadow:none!important;margin:0!important;z-index:9999!important;padding-top:var(--chat-safe-area-top);padding-right:var(--chat-safe-area-right);padding-bottom:var(--chat-safe-area-bottom);padding-left:var(--chat-safe-area-left)}.chat-embed--ios{height:-webkit-fill-available!important;min-height:-webkit-fill-available!important}.chat-embed--keyboard-open{transform:translateY(var(--chat-keyboard-offset));transition:transform .3s cubic-bezier(.25,.46,.45,.94)}.chat-embed--android{padding-bottom:calc(var(--chat-safe-area-bottom) + var(--chat-keyboard-inset-height))}.chat-embed--bottom-right:not(.chat-embed--mobile){position:fixed;bottom:20px;right:20px;width:var(--chat-width, 350px);height:var(--chat-height, 500px);z-index:1000}.chat-embed--bottom-left:not(.chat-embed--mobile){position:fixed;bottom:20px;left:20px;width:var(--chat-width, 350px);height:var(--chat-height, 500px);z-index:1000}.chat-embed--inline{position:relative!important;width:100%!important;max-width:var(--chat-width, 350px)!important;height:var(--chat-height, 500px)!important;top:auto!important;left:auto!important;right:auto!important;bottom:auto!important;padding:0!important}.chat-embed--dark{--chat-background: #1e1e1e;--chat-text: #ffffff;border-color:#333}.chat-embed__header{padding:var(--chat-mobile-padding);min-height:var(--chat-header-height);background:var(--chat-primary, #007bff);color:#fff;display:flex;flex-direction:column;justify-content:center;text-align:center;flex-shrink:0;z-index:1}.chat-embed__title{margin:0;font-size:18px;font-weight:600;line-height:1.3}.chat-embed__subtitle{margin:4px 0 0;font-size:14px;opacity:.9;line-height:1.3}.chat-embed__messages{flex:1;padding:var(--chat-mobile-padding);overflow-y:auto;overflow-x:hidden;min-height:0;display:flex;flex-direction:column;gap:16px;-webkit-overflow-scrolling:touch;scroll-behavior:smooth}.chat-embed__input-area{padding:var(--chat-mobile-padding);padding-bottom:calc(var(--chat-mobile-padding) + var(--chat-safe-area-bottom));border-top:1px solid #e1e5e9;background:var(--chat-background, #ffffff);min-height:var(--chat-input-height);flex-shrink:0;position:relative;z-index:1}.chat-embed__selected-files{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:16px;max-height:150px;overflow-y:auto;-webkit-overflow-scrolling:touch}.chat-embed__input-row{display:flex;align-items:flex-end;gap:12px}.chat-embed__input{flex:1;padding:16px;border:1px solid #e1e5e9;border-radius:25px;font-size:16px;font-family:inherit;background:var(--chat-background, #ffffff);color:var(--chat-text, #333333);outline:none;min-height:var(--chat-min-touch-target);max-height:120px;overflow-y:auto;resize:none;-webkit-appearance:none;-webkit-border-radius:25px}.chat-embed__input:focus{border-color:var(--chat-primary, #007bff);box-shadow:0 0 0 2px #007bff40}.chat-embed__send-button{min-width:var(--chat-min-touch-target);min-height:var(--chat-min-touch-target);width:var(--chat-min-touch-target);height:var(--chat-min-touch-target);border:none;border-radius:50%;background:var(--chat-primary, #007bff);color:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:18px;transition:all .2s ease;flex-shrink:0;-webkit-tap-highlight-color:transparent;touch-action:manipulation}.chat-embed__send-button:hover:not(:disabled){background:var(--chat-primary, #0056b3);transform:scale(1.05)}.chat-embed__send-button:active:not(:disabled){transform:scale(.95);background:var(--chat-primary, #004085)}.chat-embed__send-button:disabled{opacity:.5;cursor:not-allowed;transform:none}.message-bubble{display:flex;flex-direction:column;max-width:85%;word-wrap:break-word;word-break:break-word;-webkit-hyphens:auto;hyphens:auto}.message-bubble.user{align-self:flex-end;align-items:flex-end}.message-bubble.bot{align-self:flex-start;align-items:flex-start}.message-content{padding:16px 20px;border-radius:20px;position:relative;min-height:var(--chat-min-touch-target);display:flex;align-items:center}.message-bubble.user .message-content{background:var(--chat-user-bubble, #007bff);color:#fff;border-bottom-right-radius:8px}.message-bubble.bot .message-content{background:var(--chat-bot-bubble, #f1f3f4);color:var(--chat-text, #333333);border-bottom-left-radius:8px}.message-content p{margin:0;line-height:1.5;font-size:16px}.message-attachments{margin-top:12px;display:flex;flex-wrap:wrap;gap:8px}.message-timestamp{font-size:12px;opacity:.6;margin-top:6px;padding:0 6px}.media-preview{position:relative;border-radius:8px;overflow:hidden;background:#f8f9fa;border:1px solid #e1e5e9;max-width:200px}.media-preview__image,.media-preview__video{width:100%;height:auto;max-height:150px;object-fit:cover;display:block}.media-preview__file{padding:12px;display:flex;align-items:center;gap:8px;min-width:150px}.media-preview__icon{font-size:20px;flex-shrink:0}.media-preview__info{flex:1;min-width:0}.media-preview__name{display:block;font-size:12px;font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:var(--chat-text, #333333)}.media-preview__size{display:block;font-size:10px;opacity:.6;margin-top:2px}.media-preview__remove{position:absolute;top:4px;right:4px;width:20px;height:20px;border:none;border-radius:50%;background:rgba(0,0,0,.7);color:#fff;cursor:pointer;font-size:12px;display:flex;align-items:center;justify-content:center;line-height:1}.media-preview__remove:hover{background:rgba(0,0,0,.9)}.file-upload__button{width:40px;height:40px;border:1px solid #e1e5e9;border-radius:50%;background:var(--chat-background, #ffffff);color:var(--chat-text, #666666);cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:16px;transition:all .2s ease}.file-upload__button:hover:not(:disabled){border-color:var(--chat-primary, #007bff);color:var(--chat-primary, #007bff);transform:scale(1.05)}.file-upload__button--drag-over{border-color:var(--chat-primary, #007bff);background:rgba(0,123,255,.1)}.file-upload__button:disabled{opacity:.5;cursor:not-allowed;transform:none}.typing-indicator{align-self:flex-start;max-width:80px}.typing-indicator__content{background:var(--chat-bot-bubble, #f1f3f4);padding:16px 20px;border-radius:18px;display:flex;align-items:center;gap:4px}.typing-indicator__dot{width:6px;height:6px;border-radius:50%;background:#999;animation:typing-pulse 1.4s infinite ease-in-out}.typing-indicator__dot:nth-child(1){animation-delay:-.32s}.typing-indicator__dot:nth-child(2){animation-delay:-.16s}@keyframes typing-pulse{0%,80%,to{opacity:.3;transform:scale(.8)}40%{opacity:1;transform:scale(1)}}.chat-embed--dark .chat-embed__input{border-color:#333;background:#2a2a2a}.chat-embed--dark .chat-embed__input-area{border-color:#333}.chat-embed--dark .file-upload__button{border-color:#333;background:#2a2a2a}.chat-embed--dark .media-preview{background:#2a2a2a;border-color:#333}@media (min-width: 768px){:root{--chat-mobile-padding: 16px;--chat-header-height: 50px;--chat-input-height: 50px;--chat-min-touch-target: 40px}.chat-embed__title{font-size:16px}.chat-embed__subtitle{font-size:12px}.chat-embed__messages{gap:12px}.chat-embed__input{padding:12px;font-size:14px;max-height:100px}.chat-embed__send-button{width:40px;height:40px;min-width:40px;min-height:40px;font-size:16px}.message-bubble{max-width:80%}.message-content{padding:12px 16px;min-height:unset}.message-content p{font-size:14px}}@media (hover: none) and (pointer: coarse){.chat-embed__send-button:hover{background:var(--chat-primary, #007bff);transform:none}.file-upload__button:hover{border-color:#e1e5e9;color:var(--chat-text, #666666);transform:none}}@media (max-height: 500px) and (orientation: landscape){:root{--chat-header-height: 40px;--chat-mobile-padding: 12px;--chat-min-touch-target: 40px}.chat-embed__title{font-size:16px}.chat-embed__subtitle{font-size:12px}.chat-embed__input{padding:12px 16px}}@media (prefers-reduced-motion: reduce){.chat-embed,.chat-embed--keyboard-open,.message-bubble,.chat-embed__send-button{transition:none!important;animation:none!important}.chat-embed__messages{scroll-behavior:auto}}@media (prefers-contrast: high){.chat-embed,.chat-embed__input{border:2px solid}.message-content{border:1px solid}}@media (max-width: 480px){.chat-embed:not(.chat-embed--inline):not(.chat-embed--mobile){position:fixed!important;top:0!important;left:0!important;right:0!important;bottom:0!important;width:100%!important;height:100%!important;border-radius:0!important;border:none!important;z-index:9999!important}}