*{
    margin:0;
    padding:0;
    box-sizing:border-box;
    font-family:'Segoe UI',sans-serif;
}

body{
    min-height:100vh;
    background:
    linear-gradient(rgba(255,255,255,.75),rgba(255,255,255,.75)),
    url('../assets/images/banner-login.jpg') center center/cover no-repeat;
    display:flex;
    justify-content:center;
    align-items:center;
    padding:25px;
}

.login-card{
    position: relative;
    width:100%;
    max-width:430px;
    background:#fff;
    border-radius:22px;
    overflow:hidden;
    box-shadow:0 15px 40px rgba(0,0,0,.12);
}

.login-header{
    position:relative;
    background:linear-gradient(135deg,#61d1c3,#4fb2a5);
    text-align:center;
    padding:35px 30px;
    padding-left:80px; /* ruang untuk tombol */
    color:#fff;
}

.login-header .logo{
    width:300px;
    max-width:100%;
}

.login-header h5{
    font-weight:600;
    margin-bottom:8px;
}

.login-header p{
    margin:0;
    font-size:15px;
    opacity:.95;
}

.card-body{
    padding:35px;
}

.form-label{
    font-weight:600;
    margin-bottom:8px;
}

.form-control{
    height:52px;
    border-radius:14px;
    border:1px solid #d8d8d8;
    padding-left:15px;
    transition:.25s;
}

.form-control:focus{
    border-color:#55c6b7;
    box-shadow:0 0 0 .15rem rgba(85,198,183,.20);
}

.input-group-text{
    background:#fff;
    border-left:none;
    border-radius:0 14px 14px 0;
    cursor:pointer;
}

.btn-login{
    height:52px;
    border:none;
    border-radius:14px;
    background:linear-gradient(135deg,#5ecfc0,#4faea2);
    color:#fff;
    font-size:16px;
    font-weight:600;
    transition:.3s;
}

.btn-login:hover{
    transform:translateY(-2px);
    box-shadow:0 8px 20px rgba(0,0,0,.15);
}

.footer{
    border-top:1px solid #ececec;
    text-align:center;
    padding:18px;
    color:#666;
    font-size:14px;
}

.footer b{
    color:#45aa9e;
}

.back-btn{
    position:absolute;
    top:18px;
    left:18px;

    width:44px;
    height:44px;

    display:flex;
    align-items:center;
    justify-content:center;

    border-radius:50%;

    background:rgba(255,255,255,.18);
    backdrop-filter:blur(10px);

    color:#fff;
    text-decoration:none;

    border:1px solid rgba(255,255,255,.35);

    box-shadow:0 4px 12px rgba(0,0,0,.15);

    transition:.3s;
    z-index:5;
}

.back-btn:hover{
    background:#fff;
    color:#4fb2a5;
    transform:translateX(-2px);
}

@media(max-width:576px){

.login-card{
    border-radius:18px;
}

.login-header{
    padding:28px 20px;
    padding-left:70px;
}

.login-header .logo{
    width:145px;
}

.card-body{
    padding:25px;
}

.back-btn{
    top:14px;
    left:14px;
    width:40px;
    height:40px;
    font-size:20px;
}

}


/* Warna teks saat diblok / diseleksi */
::selection {
    background: #60C1AC;
    color: #fff;
}

::-moz-selection {
    background: #60C1AC;
    color: #fff;
}