.attc-container {max-width:600px;margin:20px auto;padding:15px;border:2px solid #ccc;border-radius:10px;text-align:center;}
.attc-container input,.attc-container select,.attc-container textarea{width:100%;margin:10px 0;padding:10px;}
.attc-container button{margin:5px;padding:10px 20px;border:none;color:#fff;font-weight:bold;cursor:pointer;border-radius:5px;background:linear-gradient(90deg, white, blue, green, yellow, purple);background-size:300% 300%;animation:shine 3s linear infinite;}
@keyframes shine{0%{background-position:0% 50%;}50%{background-position:100% 50%;}100%{background-position:0% 50%;}}
#attc-result{width:100%;margin-top:10px;padding:10px;}