body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; margin: 0; padding: 0; background-color: #f8f9fa; color: #333; line-height: 1.6; }
header { background-color: #007bff; color: white; padding: 1rem; display: flex; justify-content: space-between; align-items: center; }
.dropdown { position: relative; display: inline-block; }
.dropbtn { background-color: #007bff; color: white; padding: 0.5rem; border: none; cursor: pointer; font-weight: bold; }
.dropdown-content { display: none; position: absolute; background-color: #f9f9f9; min-width: 160px; box-shadow: 0px 8px 16px rgba(0,0,0,0.2); z-index: 1; }
.dropdown-content a { color: black; padding: 12px 16px; text-decoration: none; display: block; }
.dropdown-content a:hover {background-color: #f1f1f1}
.dropdown:hover .dropdown-content {display: block;}
.dropdown:hover .dropbtn {background-color: #0056b3;}
h1 { flex: 1; text-align: center; color: white; }
.login-container { display: flex; align-items: center; }
.login-container form { display: flex; align-items: center; }
.login-container label { margin: 0 0.5rem; }
.login-container input { padding: 0.3rem; margin: 0 0.2rem; }
nav { background-color: #0056b3; padding: 0.5rem; }
nav ul { list-style: none; padding: 0; margin: 0; display: flex; justify-content: center; }
nav li { margin: 0 1rem; }
nav a { color: white; text-decoration: none; font-weight: bold; }
nav a:hover { text-decoration: underline; }
main { max-width: 1200px; margin: 2rem auto; padding: 0 1rem; }
section { margin-bottom: 2rem; padding: 1rem; background-color: white; border-radius: 8px; box-shadow: 0 2px 4px rgba(0,0,0,0.1); }
h1, h2 { color: #007bff; }
footer { background-color: #343a40; color: white; text-align: center; padding: 1rem 0; margin-top: 2rem; }
.hero { text-align: center; padding: 2rem 0; }
.btn { display: inline-block; padding: 0.5rem 1rem; background-color: #28a745; color: white; text-decoration: none; border-radius: 4px; margin-top: 1rem; }
.btn:hover { background-color: #218838; }
form label { display: block; margin-bottom: 0.5rem; }
input { padding: 0.5rem; margin-bottom: 1rem; width: 100%; max-width: 300px; }
button { padding: 0.5rem 1rem; background-color: #007bff; color: white; border: none; border-radius: 4px; cursor: pointer; }
button:hover { background-color: #0056b3; }

/* Chatbox */
#chatbot-container { position: fixed; bottom: 20px; right: 20px; width: 300px; max-width: 90%; background: #fff; border-radius: 10px; box-shadow: 0 4px 10px rgba(0,0,0,0.2); display: flex; flex-direction: column; overflow: hidden; z-index: 1000; }
#chatbot-header { background: #007bff; color: white; padding: 10px; text-align: center; font-weight: bold; cursor: pointer; }
#chatbot-body { display: none; flex-direction: column; }
#chatbot-messages { padding: 10px; height: 200px; overflow-y: auto; flex-grow: 1; background: #f1f1f1; }
#chatbot-input { padding: 8px; border: none; border-top: 1px solid #ccc; width: calc(100% - 60px); box-sizing: border-box; }
#chatbot-send { width: 50px; border: none; background: #007bff; color: white; cursor: pointer; }
#chatbot-container input:focus { outline: none; }
.chat-msg { margin-bottom: 8px; padding: 6px 10px; border-radius: 8px; max-width: 80%; word-wrap: break-word; }
.user-msg { background-color: #007bff; color: white; align-self: flex-end; }
.bot-msg { background-color: #e5e5e5; color: #333; align-self: flex-start; }
@media (max-width: 768px){ #chatbot-container { width: 90%; right: 5%; bottom: 10px; } }