*{
    margin:0;
    padding:0;
    box-sizing:border-box;
    font-family:Arial, Helvetica, sans-serif;
}

body{
    background:#f4f7fb;
}

.login-wrapper{
    min-height:100vh;
    display:flex;
    justify-content:center;
    align-items:center;
    padding:20px;
}

.login-box{
    width:100%;
    max-width:420px;
    background:#fff;
    border-radius:10px;
    box-shadow:0 5px 20px rgba(0,0,0,.15);
    overflow:hidden;
}

.login-header{
    background:#0056a6;
    color:#fff;
    text-align:center;
    padding:20px;
}

.login-header h2{
    font-size:24px;
    margin-bottom:5px;
}

.login-header p{
    font-size:14px;
}

.login-body{
    padding:25px;
}

.login-body h3{
    text-align:center;
    color:#0056a6;
    margin-bottom:20px;
}

.form-group{
    margin-bottom:15px;
}

.form-control{
    width:100%;
    padding:12px;
    border:1px solid #ccc;
    border-radius:5px;
    font-size:15px;
}

.form-control:focus{
    border-color:#0056a6;
    outline:none;
}

.captcha-box{
    display:flex;
    align-items:center;
    gap:10px;
    margin-top:10px;
}

.captcha-box img{
    height:45px;
}

.refresh img{
    width:32px;
    cursor:pointer;
}

.btn-login{
    width:100%;
    background:#0056a6;
    color:#fff;
    border:none;
    padding:12px;
    font-size:16px;
    border-radius:5px;
    cursor:pointer;
    transition:.3s;
}

.btn-login:hover{
    background:#003d73;
}

.message{
    text-align:center;
    color:red;
    margin-bottom:15px;
}

@media(max-width:480px){

.login-header h2{
    font-size:20px;
}

.login-body{
    padding:20px;
}

}