:root{--primary-color: #007bff;--secondary-color: #6c757d;--text-color: #212529;--border-color: #e9ecef;--message-bg-user: var(--primary-color);--message-bg-bot: #f8f9fa}*{margin:0;padding:0;box-sizing:border-box;font-family:inherit}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;height:100vh;background:transparent;color:var(--text-color);display:flex;flex-direction:column}.chat-container{display:flex;flex-direction:column;height:100vh;max-height:700px}.chat-header{background:var(--primary-color);color:#fff;padding:16px;text-align:center;font-weight:600;border-radius:12px 12px 0 0}.chat-messages{flex:1;overflow-y:auto;padding:16px;display:flex;flex-direction:column;gap:12px;min-height:0;background-color:#fff}.message{max-width:80%;padding:12px 16px;border-radius:18px;word-wrap:break-word;line-height:1.4}.message.user{align-self:flex-end;background:var(--message-bg-user);color:#fff;border-bottom-right-radius:4px}.message.bot{align-self:flex-start;background:var(--message-bg-bot);color:var(--text-color);border:1px solid var(--border-color);border-bottom-left-radius:4px}.chat-input-container{padding:16px;background:#fff;border-top:1px solid var(--border-color);border-radius:0 0 12px 12px}.chat-input{flex:1;padding:12px 16px;border:1px solid var(--border-color);border-radius:24px;box-shadow:0 2px 8px #0000001a;outline:none;font-size:16px;resize:none;max-height:100px;min-height:44px;-webkit-appearance:none;-webkit-tap-highlight-color:transparent;touch-action:manipulation;transform:translateZ(0);-webkit-transform:translateZ(0)}.chat-input:focus{border-color:var(--primary-color);box-shadow:0 0 0 3px #007bff1a}.send-button{width:44px;height:44px;background:var(--primary-color);color:#fff;border:none;border-radius:50%;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:16px;transition:#fff .2s;flex-shrink:0}.send-button:hover:not(:disabled){background:color-mix(in srgb,var(--primary-color) 85%,black)}.send-button:disabled{background:var(--secondary-color);cursor:not-allowed}.input-wrapper{display:flex;gap:8px;align-items:flex-end}.email-prompt{background:color-mix(in srgb,var(--primary-color) 10%,white);border:1px solid color-mix(in srgb,var(--primary-color) 30%,white);border-radius:8px;padding:16px;margin:16px;text-align:center}.email-prompt h4{margin-bottom:12px;color:var(--primary-color)}.email-input{width:100%;padding:8px 12px;border:1px solid var(--border-color);border-radius:4px;margin-bottom:12px;font-size:16px;-webkit-appearance:none;-webkit-tap-highlight-color:transparent;touch-action:manipulation;transform:translateZ(0);-webkit-transform:translateZ(0)}.email-buttons{display:flex;gap:8px;justify-content:center}.email-buttons button{padding:8px 16px;border:none;border-radius:4px;cursor:pointer;font-size:14px}.email-submit{background:var(--primary-color);color:#fff}.email-skip{background:var(--secondary-color);color:#fff}.loading-dots{display:inline-block;position:relative;width:40px;height:20px}.loading-dots div{position:absolute;top:8px;width:6px;height:6px;border-radius:50%;background:var(--secondary-color);animation:loading-dots 1.2s linear infinite}.loading-dots div:nth-child(1){left:8px;animation-delay:0s}.loading-dots div:nth-child(2){left:16px;animation-delay:-.4s}.loading-dots div:nth-child(3){left:24px;animation-delay:-.8s}@keyframes loading-dots{0%,80%,to{opacity:.3;transform:scale(1)}40%{opacity:1;transform:scale(1.2)}}.feedback-icons{display:flex;gap:4px;margin-top:8px;align-items:center}.feedback-icon{cursor:pointer;opacity:.4;transition:all .2s ease;border-radius:2px;padding:1px;background-color:transparent;width:15px;height:15px;display:flex;align-items:center;justify-content:center}.feedback-icon:hover{opacity:.8;background-color:#0000000d}.feedback-icon.selected{opacity:1;background-color:#007bff1a}.feedback-icon.disabled{opacity:.15;cursor:default;pointer-events:none}.feedback-icon svg{width:15px;height:15px;stroke:var(--text-color);fill:none;stroke-width:1.5}.hidden{display:none!important}@media screen and (max-width:768px){.chat-input,.email-input{font-size:16px!important;-webkit-text-size-adjust:100%;-ms-text-size-adjust:100%;text-size-adjust:100%}.chat-container{height:100vh;max-height:none}.chat-messages{word-break:break-word;overflow-wrap:break-word}}.mobile-optimized .chat-input,.mobile-optimized .email-input{font-size:16px!important;-webkit-text-size-adjust:100%!important;-ms-text-size-adjust:100%!important;text-size-adjust:100%!important;transform:translateZ(0)!important;-webkit-transform:translateZ(0)!important}.mobile-optimized .chat-container{height:100vh!important;max-height:none!important}input[type=text],input[type=email],textarea{font-size:16px;-webkit-appearance:none;-webkit-tap-highlight-color:transparent;touch-action:manipulation}.powered-by{text-align:center;opacity:.5;transition:opacity .2s ease;padding-top:12px}.powered-by:hover{opacity:1}.powered-by-link{display:flex;align-items:center;justify-content:center;text-decoration:none;color:var(--secondary-color);gap:6px;font-size:12px;font-weight:500}.powered-by-icon{width:16px;height:16px;opacity:.8}