:root{--primary-color:#0d6efd;--secondary-color:#6c757d;--success-color:#198754;--danger-color:#dc3545;--warning-color:#ffc107;--info-color:#0dcaf0;--light-color:#f8f9fa;--dark-color:#212529}*{box-sizing:border-box;padding:0;margin:0}body,html{max-width:100vw;overflow-x:hidden;scroll-behavior:smooth}body{color:var(--dark-color);background:var(--light-color)}a{color:inherit;text-decoration:none}::-webkit-scrollbar{width:8px}::-webkit-scrollbar-track{background:#f1f1f1}::-webkit-scrollbar-thumb{background:var(--primary-color);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:#0a58ca}.chatbot-container{position:fixed;bottom:20px;right:20px;z-index:1000;max-width:400px;width:100%}.chatbot-button{width:60px;height:60px;border-radius:50%;background:var(--primary-color);border:none;color:white;font-size:24px;cursor:pointer;box-shadow:0 4px 12px rgba(0,0,0,.15);transition:all .3s ease}.chatbot-button:hover{transform:scale(1.1);box-shadow:0 6px 16px rgba(0,0,0,.2)}.chatbot-window{background:white;border-radius:12px;box-shadow:0 8px 24px rgba(0,0,0,.15);display:flex;flex-direction:column;height:500px;max-height:80vh;overflow:hidden}.chatbot-header{background:var(--primary-color);color:white;padding:15px;display:flex;justify-content:space-between;align-items:center}.chatbot-messages{flex:1 1;overflow-y:auto;padding:20px;display:flex;flex-direction:column;gap:12px}.message{padding:12px 16px;border-radius:12px;max-width:80%;word-wrap:break-word}.message.user{background:var(--primary-color);color:white;align-self:flex-end;margin-left:auto}.message.bot{background:#e9ecef;color:var(--dark-color);align-self:flex-start}.chatbot-input-area{padding:15px;border-top:1px solid #dee2e6;display:flex;gap:10px}.chatbot-input{flex:1 1;border:1px solid #dee2e6;border-radius:20px;padding:10px 15px;outline:none}.chatbot-input:focus{border-color:var(--primary-color)}.loading-dots{display:inline-block}.loading-dots:after{content:"...";animation:dots 1.5s steps(4) infinite}@keyframes dots{0%,20%{content:"."}40%{content:".."}60%,to{content:"..."}}.hover-lift{transition:transform .2s ease,box-shadow .2s ease}.hover-lift:hover{transform:translateY(-5px);box-shadow:0 8px 16px rgba(0,0,0,.1)!important}.spinner-border-sm{animation:spinner-border .75s linear infinite}@keyframes spinner-border{to{transform:rotate(1turn)}}@media (max-width:768px){.chatbot-container{max-width:calc(100% - 40px);bottom:10px;right:10px}.chatbot-window{height:400px}}