#concern{max-width:600px;margin:50px auto;padding:20px;border-radius:8px;box-shadow:0 0 10px var(--shadow-color);text-align:center}#concern h2{font-size:28px;margin-bottom:20px;color:var(--text-primary)}#concern p{font-size:16px;margin-bottom:30px;color:var(--text-secondary)}.concern-button{margin-top:20px}.concern-btn{background-color:#007bff;color:#fff;padding:10px 20px;font-size:18px;border:0;border-radius:5px;cursor:pointer;transition:background-color .3s ease}.concern-btn:hover{background-color:#0056b3}@media (max-width:600px){.concern-btn{font-size:16px;padding:12px 25px}}