body {font-family: Arial, sans-serif;background: #0b0c10;color: #e9eef2;margin: 0;padding: 0;}
header, footer {background: #111218;padding: 20px;text-align: center;}
nav a {color: #7ee787;margin: 0 10px;text-decoration: none;}
.hero {padding: 40px;text-align: center;background: #1a1d26;}
.btn {padding: 10px 20px;background: #64b5f6;color: #000;border-radius: 6px;}
.chat {border: 1px solid #333;border-radius: 8px;background: #111;padding: 10px;}
.chat-stream {max-height: 300px;overflow-y: auto;margin-bottom: 10px;}
.chat-input {display: flex;gap: 5px;}
.chat-input input {flex: 1;padding: 8px;border-radius: 6px;border: 1px solid #555;}
.chat-input button {padding: 8px 12px;}