body{background:#e8f3ff;display:flex;align-items:center;justify-content:center;height:100vh;}
.login-box{width:360px;background:#fff;padding:40px;border-radius:8px;box-shadow:0 0 20px #ccc;}
h2{text-align:center;margin-bottom:30px;color:#2d8cf0;}
.item{margin-bottom:20px;}
.item label{display:block;margin-bottom:6px;}
.item input{width:100%;padding:10px;border:1px solid #ddd;border-radius:4px;}
#loginBtn{width:100%;padding:12px;font-size:16px;}