body{margin:0;font-family:Arial;background:#f4f6f8}
.hero{height:60vh;background:url('gdansk.jpg') center/cover no-repeat;position:relative}
.overlay{position:absolute;inset:0;background:rgba(0,0,0,.45);color:#fff;display:flex;flex-direction:column;justify-content:center;align-items:center}
.chat-section{max-width:600px;margin:-80px auto 40px;background:#fff;border-radius:8px;box-shadow:0 10px 30px rgba(0,0,0,.1)}
.chat-header{display:flex;align-items:center;padding:10px;background:#1f3a5f;color:#fff}
.avatar{width:36px;height:36px;border-radius:50%;margin-right:10px}
.chat-box{height:200px;padding:10px;color:#777}
.chat-input{display:flex;gap:5px;padding:10px}
.chat-input input{flex:1}
.about{text-align:center;margin-bottom:40px}
footer{text-align:center;font-size:12px;color:#555;padding:20px}