:root{--chat-primary-color: #667eea;--chat-primary-dark: #764ba2;--chat-primary-color2: #21327e;--chat-primary-dark2: #552f7c;--chat-quote-color: #fffda3;--chat-accent-color: #ff4757;--chat-success-color: #10b981;--chat-success-dark: #059669;--chat-bg-primary: #333;--chat-bg-secondary: #222;--chat-bg-input: #f8fafc;--chat-text-primary: #eee;--chat-text-secondary: #222;--chat-text-white: #ffffff;--chat-text-placeholder: #9ca3af;--chat-border-light: ##888;--chat-border-focus: var(--chat-primary-color);--chat-disabled-bg: #d1d5db;--chat-disabled-opacity: .6;--chat-font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;--chat-font-size-base: 16px;--chat-font-size-header: 16px;--chat-font-size-small: 11px;--chat-font-size-bubble: 24px;--chat-font-weight-normal: 400;--chat-font-weight-medium: 500;--chat-font-weight-semibold: 600;--chat-line-height-base: 1.5;--chat-line-height-tight: 1.4;--chat-line-height-none: 1;--chat-spacing-xs: 4px;--chat-spacing-sm: 8px;--chat-spacing-md: 12px;--chat-spacing-lg: 16px;--chat-spacing-xl: 2vh;--chat-spacing-2xl: 4vh;--chat-radius-sm: 12px;--chat-radius-md: 18px;--chat-radius-lg: 20px;--chat-radius-full: 50%;--chat-shadow-sm: 0 1px 3px rgba(0, 0, 0, .1);--chat-shadow-md: 0 8px 25px rgba(102, 126, 234, .4);--chat-shadow-lg: 0 20px 60px rgba(0, 0, 0, .15), 0 8px 25px rgba(0, 0, 0, .1);--chat-shadow-bubble: 0 8px 32px rgba(102, 126, 234, .4);--chat-shadow-hover: 0 12px 40px rgba(102, 126, 234, .6);--chat-shadow-message: 0 2px 8px rgba(102, 126, 234, .3);--chat-shadow-focus: 0 0 0 3px rgba(102, 126, 234, .1);--chat-gradient-primary: linear-gradient( 135deg, var(--chat-primary-color) 0%, var(--chat-primary-dark) 100% );--chat-gradient-primary2: linear-gradient( 135deg, var(--chat-primary-color2) 0%, var(--chat-primary-dark2) 100% );--chat-gradient-primary-reverse: linear-gradient( 135deg, var(--chat-primary-dark) 0%, var(--chat-primary-color) 100% );--chat-gradient-success: linear-gradient( 135deg, var(--chat-success-color) 0%, var(--chat-success-dark) 100% );--chat-transition-fast: all .2s ease;--chat-transition-normal: all .3s ease;--chat-transition-smooth: all .3s cubic-bezier(.4, 0, .2, 1);--chat-z-widget: 9999;--chat-z-input: 10}*{box-sizing:border-box;margin:0;padding:0}.chat-body::-webkit-scrollbar{width:6px}.chat-body::-webkit-scrollbar-track{background:transparent}.chat-body::-webkit-scrollbar-thumb{background:#667eea4d;border-radius:3px}.chat-body::-webkit-scrollbar-thumb:hover{background:#667eea80}.chat-widget{position:fixed;bottom:var(--chat-spacing-xl);right:var(--chat-spacing-xl);z-index:var(--chat-z-widget);font-family:var(--chat-font-family);font-size:var(--chat-font-size-base);line-height:var(--chat-line-height-base)}.chat-bubble{all:unset;width:45px;height:45px;border-radius:var(--chat-radius-full);background:var(--chat-text-white);border:2px solid var(--chat-text-secondary);color:var(--chat-text-white);font-size:var(--chat-font-size-bubble);display:grid;place-items:center;cursor:pointer;box-shadow:var(--chat-shadow-bubble);transition:var(--chat-transition-smooth);position:fixed;bottom:20px;right:10px}.chat-bubble:before{content:"";position:absolute;top:0;left:0;right:0;bottom:0;opacity:0;transition:opacity .3s ease;border-radius:var(--chat-radius-full)}.chat-bubble:hover{transform:translateY(-2px) scale(1.05);box-shadow:var(--chat-shadow-hover)}.chat-bubble:hover:before{opacity:1}.chat-bubble:active{transform:translateY(0) scale(.95)}.chat-box{position:fixed;top:0;right:0;height:100vh;width:100vw;max-width:650px;background:var(--chat-bg-primary);box-shadow:var(--chat-shadow-lg);display:flex;flex-direction:column;overflow:hidden;animation:slideInUp .4s cubic-bezier(.4,0,.2,1);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.chat-header{background:var(--chat-gradient-primary2);color:var(--chat-text-white);padding:var(--chat-spacing-md) var(--chat-spacing-lg);font-weight:var(--chat-font-weight-semibold);font-size:var(--chat-font-size-header);display:flex;align-items:center;gap:var(--chat-spacing-md);position:relative;flex-shrink:0}.chat-header:after{content:"";position:absolute;bottom:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,rgba(255,255,255,.3),transparent)}.chat-body{flex:1;background:var(--chat-bg-secondary);display:flex;flex-direction:column;overflow:hidden;position:relative}.chat-form{display:flex;flex-direction:column;gap:16px;margin-bottom:50px}.chat-form label{font-weight:500;color:#374151;font-size:15px;margin-bottom:4px;display:block}.chat-form input{padding:14px 16px;border:2px solid #e5e7eb;border-radius:12px;font-size:14px;transition:all .3s ease;background:#fff;color:#374151;font-family:inherit}.chat-form input:focus{outline:none;border-color:#667eea;box-shadow:0 0 0 3px #667eea1a;transform:translateY(-1px)}.chat-form input::placeholder{color:#9ca3af}.chat-form button{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none;padding:14px 24px;border-radius:12px;cursor:pointer;font-weight:600;font-size:14px;transition:all .3s cubic-bezier(.4,0,.2,1);position:relative;overflow:hidden;font-family:inherit}.chat-form button:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.2),transparent);transition:left .5s ease}.chat-form button:hover{transform:translateY(-2px);box-shadow:0 8px 25px #667eea66}.chat-form button:hover:before{left:100%}.chat-form button:active{transform:translateY(0)}.chat-widget:has(.chat-box) .chat-bubble{transform:rotate(180deg);background:none;border:none;box-shadow:none;font-size:40px;right:0;top:10px}.welcome-message{background:var(--chat-gradient-primary);color:var(--chat-text-white);padding:var(--chat-spacing-lg) var(--chat-spacing-xl);border-radius:var(--chat-spacing-lg);margin-bottom:var(--chat-spacing-xl);font-size:var(--chat-font-size-base);line-height:1.6;position:relative;overflow:hidden;animation:fadeIn .5s ease-out}.welcome-message:before{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background:linear-gradient(45deg,transparent 30%,rgba(255,255,255,.1) 50%,transparent 70%);animation:shimmer 3s infinite}.welcome-message:last-child{background:var(--chat-gradient-success);text-align:center;font-weight:var(--chat-font-weight-medium)}.welcome-message:last-child:before{animation:shimmer 2s infinite}.messages-container{flex:1;padding:var(--chat-spacing-lg) var(--chat-spacing-xl);overflow-y:auto;display:flex;flex-direction:column;gap:var(--chat-spacing-md);scroll-behavior:smooth;box-sizing:border-box}.messages-container::-webkit-scrollbar{width:6px}.messages-container::-webkit-scrollbar-track{background:transparent}.messages-container::-webkit-scrollbar-thumb{background:#667eea4d;border-radius:3px}.messages-container::-webkit-scrollbar-thumb:hover{background:#667eea80}.message{display:flex;flex-direction:column;margin-bottom:var(--chat-spacing-xs);animation:messageSlideIn .3s ease-out}.message.user-message{align-items:flex-end}.message.bot-message{align-items:flex-start}.message-bubble{max-width:75%;padding:var(--chat-spacing-md) var(--chat-spacing-lg);border-radius:var(--chat-radius-md);font-size:var(--chat-font-size-base);line-height:var(--chat-line-height-tight);word-wrap:break-word;position:relative}.user-message .message-bubble{background:var(--chat-gradient-primary);color:var(--chat-text-white);border-bottom-right-radius:6px;box-shadow:var(--chat-shadow-message)}.bot-message .message-bubble{background:var(--chat-bg-primary);color:var(--chat-text-primary);border:1px solid var(--chat-border-light);border-bottom-left-radius:6px;box-shadow:var(--chat-shadow-sm)}.message-time{font-size:var(--chat-font-size-small);color:var(--chat-text-secondary);margin-top:var(--chat-spacing-xs);margin-bottom:var(--chat-spacing-sm);font-weight:var(--chat-font-weight-normal)}.user-message .message-time{text-align:right;margin-right:var(--chat-spacing-sm)}.bot-message .message-time{text-align:left;margin-left:var(--chat-spacing-sm)}.chat-input-form{padding:var(--chat-spacing-2xl);border-top:1px solid var(--chat-border-light);flex-shrink:0}.input-container{display:flex;align-items:flex-end;gap:var(--chat-spacing-sm);background:var(--chat-bg-input);border-radius:var(--chat-radius-lg);padding:var(--chat-spacing-sm);border:1px solid var(--chat-border-light);transition:var(--chat-transition-fast)}.input-container:focus-within{border-color:var(--chat-border-focus);box-shadow:var(--chat-shadow-focus)}.input-container:has(.message-input:disabled){cursor:not-allowed;opacity:var(--chat-disabled-opacity)}.input-container:has(.message-input:disabled):hover{border-color:var(--chat-border-light);box-shadow:none}.chat-input-form.loading{cursor:not-allowed}.input-container.loading{cursor:not-allowed;opacity:var(--chat-disabled-opacity);pointer-events:none}.input-container.loading:hover{border-color:var(--chat-border-light);box-shadow:none}.message-input{flex:1;border:none;background:transparent;padding:var(--chat-spacing-sm) var(--chat-spacing-md);font-size:var(--chat-font-size-base);line-height:var(--chat-line-height-tight);resize:none;outline:none;color:var(--chat-text-secondary);font-family:var(--chat-font-family);min-height:var(--chat-spacing-xl);max-height:100px}.message-input::placeholder{color:var(--chat-text-placeholder)}.message-input:disabled{cursor:not-allowed;opacity:var(--chat-disabled-opacity)}.send-button{background:var(--chat-gradient-primary);border:none;border-radius:var(--chat-radius-full);width:36px;height:36px;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:var(--chat-transition-fast);color:var(--chat-text-white);flex-shrink:0}.send-button:hover:not(:disabled){transform:scale(1.05);box-shadow:var(--chat-shadow-md)}.send-button:active:not(:disabled){transform:scale(.95)}.send-button:disabled{background:var(--chat-disabled-bg);cursor:not-allowed;opacity:var(--chat-disabled-opacity)}.send-button svg{transform:translate(1px)}.typing-message{margin-bottom:var(--chat-spacing-sm)}.typing-bubble{background:var(--chat-bg-primary);color:var(--chat-text-secondary);border:1px solid var(--chat-border-light);border-bottom-left-radius:6px;box-shadow:var(--chat-shadow-sm);padding:var(--chat-spacing-lg);animation:messageSlideIn .3s ease-out}.typing-indicator{display:flex;align-items:center;gap:4px}@keyframes messageSlideIn{0%{opacity:0;transform:translateY(10px) scale(.95)}to{opacity:1;transform:translateY(0) scale(1)}}@keyframes shimmer{0%{transform:translate(-100%)}to{transform:translate(100%)}}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@keyframes pulse{0%{transform:scale(1);opacity:0}to{transform:scale(1.8);opacity:1}}@keyframes slideInUp{0%{opacity:0;transform:translateY(30px) scale(.95)}to{opacity:1;transform:translateY(0) scale(1)}}@media (max-width: 480px){.chat-box{width:calc(100vw - 40px);right:-10px;bottom:80px}.chat-widget{bottom:15px;right:15px}.message-bubble{max-width:85%}.messages-container{padding:var(--chat-spacing-md) var(--chat-spacing-lg)}.chat-input-form{padding:var(--chat-spacing-xl) var(--chat-spacing-lg)}}.bot-message .message-bubble h1,.bot-message .message-bubble h2,.bot-message .message-bubble h3,.bot-message .message-bubble h4,.bot-message .message-bubble h5,.bot-message .message-bubble h6{color:var(--chat-text-primary);font-weight:var(--chat-font-weight-semibold);margin:var(--chat-spacing-sm) 0;line-height:var(--chat-line-height-tight)}.bot-message .message-bubble h1{font-size:18px;border-bottom:2px solid var(--chat-border-light);padding-bottom:var(--chat-spacing-xs)}.bot-message .message-bubble h2{font-size:16px;border-bottom:1px solid var(--chat-border-light);padding-bottom:var(--chat-spacing-xs)}.bot-message .message-bubble h3{font-size:15px}.bot-message .message-bubble h4,.bot-message .message-bubble h5,.bot-message .message-bubble h6{font-size:var(--chat-font-size-base)}.bot-message .message-bubble p{margin:var(--chat-spacing-sm) 0;line-height:var(--chat-line-height-base)}.bot-message .message-bubble p:first-child{margin-top:0}.bot-message .message-bubble p:last-child{margin-bottom:0}.bot-message .message-bubble a{color:var(--chat-primary-color);text-decoration:none;border-bottom:1px solid transparent;transition:var(--chat-transition-fast)}.bot-message .message-bubble a:hover{color:var(--chat-primary-dark);border-bottom-color:var(--chat-primary-color)}.bot-message .message-bubble strong,.bot-message .message-bubble b{font-weight:var(--chat-font-weight-semibold);color:var(--chat-text-primary)}.bot-message .message-bubble em,.bot-message .message-bubble i{font-style:italic}.bot-message .message-bubble code{background:var(--chat-bg-secondary);color:var(--chat-success-color);padding:2px 6px;border-radius:4px;font-family:Monaco,Menlo,Ubuntu Mono,monospace;font-size:13px;border:1px solid var(--chat-border-light)}.bot-message .message-bubble pre{background:var(--chat-bg-secondary);border:1px solid var(--chat-border-light);border-radius:var(--chat-radius-sm);padding:var(--chat-spacing-md);margin:var(--chat-spacing-sm) 0;overflow-x:auto;font-family:Monaco,Menlo,Ubuntu Mono,monospace;font-size:13px;line-height:1.4}.bot-message .message-bubble pre code{background:transparent;padding:0;border:none;font-size:inherit}.bot-message .message-bubble ul,.bot-message .message-bubble ol{margin:var(--chat-spacing-sm) 0;padding-left:var(--chat-spacing-xl)}.bot-message .message-bubble li{margin:var(--chat-spacing-xs) 0;line-height:var(--chat-line-height-base)}.bot-message .message-bubble ul li{list-style-type:disc}.bot-message .message-bubble ol li{list-style-type:decimal}.bot-message .message-bubble blockquote{border-left:4px solid var(--chat-primary-color);background:var(--chat-bg-secondary);margin:var(--chat-spacing-sm) 0;padding:var(--chat-spacing-sm) var(--chat-spacing-md);border-radius:0 var(--chat-radius-sm) var(--chat-radius-sm) 0;color:var(--chat-quote-color);font-style:italic}.bot-message .message-bubble blockquote p{margin:0}.bot-message .message-bubble hr{border:none;height:1px;background:var(--chat-border-light);margin:var(--chat-spacing-lg) 0}.bot-message .message-bubble table{width:100%;border-collapse:collapse;margin:var(--chat-spacing-sm) 0;font-size:13px}.bot-message .message-bubble th,.bot-message .message-bubble td{border:1px solid var(--chat-border-light);padding:var(--chat-spacing-xs) var(--chat-spacing-sm);text-align:left}.bot-message .message-bubble th{background:var(--chat-bg-secondary);font-weight:var(--chat-font-weight-semibold)}.bot-message .message-bubble del,.bot-message .message-bubble s{text-decoration:line-through;opacity:.7}.bot-message .message-bubble img{max-width:100%;height:auto;border-radius:var(--chat-radius-sm);margin:var(--chat-spacing-sm) 0}.bot-message .message-bubble>div:first-child>*:first-child{margin-top:0}.bot-message .message-bubble>div:last-child>*:last-child{margin-bottom:0}.bot-message-content{display:inline}.bot-message-content>div{display:inline}.streaming-cursor{color:var(--chat-accent-color);font-weight:700;animation:blink 1.2s infinite;display:inline;margin-left:0;min-width:auto;height:auto;background-color:transparent;border-radius:0}@keyframes blink{0%,50%{opacity:1}51%,to{opacity:.5}}.btn-tiquet{background:var(--chat-accent-color);color:var(--chat-text-white);border:none;display:flex;align-items:center;justify-content:center;padding:8px 20px 5px;border-radius:var(--chat-radius-sm);cursor:pointer;font-weight:600;font-size:14px;text-transform:uppercase;transition:all .3s cubic-bezier(.4,0,.2,1);font-family:inherit;filter:saturate(.5)}.btn-tiquet:hover{filter:none}