:root{--bg-color: #ffffff;--text-color: #333333;--primary-color: #5FB0A5;--card-bg: #f8f9fa}.dark-theme{--bg-color: #121212;--text-color: #f8f9fa;--primary-color: #4a9c8e;--card-bg: #1e1e1e}body{background-color:var(--bg-color);color:var(--text-color);transition:background-color .3s ease,color .3s ease}.card{background-color:var(--card-bg);color:var(--text-color)}.chatbot-container{position:fixed;bottom:20px;right:20px;z-index:10000}.chatbot-button{width:60px;height:60px;border-radius:50%;background-color:#5fb0a5;color:#fff;border:none;font-size:24px;cursor:pointer;box-shadow:0 4px 12px #0003;display:flex;align-items:center;justify-content:center;transition:transform .3s ease}.chatbot-button:hover{transform:scale(1.1)}.chat-window{position:absolute;bottom:70px;right:0;width:350px;height:450px;border-radius:12px;box-shadow:0 5px 25px #0003;display:flex;flex-direction:column;overflow:hidden}.chat-header{background-color:#5fb0a5;color:#fff;padding:15px;font-weight:700;display:flex;justify-content:space-between;align-items:center}.chat-messages{flex:1;padding:15px;overflow-y:auto;display:flex;flex-direction:column;gap:10px;background-color:#d1d5db}.message{max-width:80%;padding:12px 16px;border-radius:18px}.user-message{align-self:flex-end;background-color:#2d2d2d;color:#fff;border-bottom-right-radius:5px}.bot-message{align-self:flex-start;background-color:#f1f1f1;color:#333;border-bottom-left-radius:5px}.dark-mode .bot-message{background-color:#2d2d2d;color:#e5e7eb}.chat-input{display:flex;padding:15px;border-top:1px solid #e5e7eb}.dark-mode .chat-input{border-top:1px solid #333}.chat-input input{flex:1;padding:12px;border:1px solid #d1d5db;border-radius:20px;outline:none}.dark-mode .chat-input input{background-color:#2a2a2a;color:#fff;border-color:#444}.chat-input button{margin-left:10px;background-color:#5fb0a5;color:#fff;border:none;border-radius:20px;padding:0 20px;cursor:pointer}.cross{background-color:#2d2d2d}