html,
body{
    height:100%;
    overflow:hidden;
}
body{
    margin:0;
    padding:0;
    background:
    linear-gradient(rgba(15,23,42,0.82),rgba(15,23,42,0.85)),
    url('https://images.unsplash.com/photo-1509062522246-3755977927d7?q=80&w=1600');
    background-size:cover;
    background-position:center;
    font-family:'Poppins',sans-serif;
    display:flex;
    align-items:center;
    justify-content:center;
}
.login-section{
    width:100%;
    height:100vh;
    display:flex;
    align-items:center;
    padding:18px;
}
.login-card{
    background:rgba(255,255,255,0.97);
    border-radius:28px;
    overflow:hidden;
    box-shadow:0 20px 60px rgba(0,0,0,0.18);
    max-height:95vh;
}
.left-side{
    background:linear-gradient(135deg,#2563eb,#1d4ed8);
    color:white;
    padding:45px;
    height:100%;
    position:relative;
    overflow:hidden;
}
.left-side::before{
    content:'';
    position:absolute;
    width:260px;
    height:260px;
    background:rgba(255,255,255,0.08);
    border-radius:50%;
    top:-100px;
    right:-90px;
}
.left-side::after{
    content:'';
    position:absolute;
    width:180px;
    height:180px;
    background:rgba(255,255,255,0.07);
    border-radius:50%;
    bottom:-60px;
    left:-60px;
}
.school-logo{
    width:90px;
    height:90px;
    object-fit:contain;
    background:white;
    padding:10px;
    border-radius:20px;
    margin-bottom:25px;
    position:relative;
    z-index:2;
}
.left-side h2{
    font-size:30px;
    font-weight:700;
    line-height:1.4;
    margin-bottom:18px;
    position:relative;
    z-index:2;
}
.left-side p{
    color:#dbeafe;
    font-size:15px;
    line-height:1.8;
    position:relative;
    z-index:2;
}
.feature-list{
    margin-top:28px;
    position:relative;
    z-index:2;
}
.feature-item{
    display:flex;
    align-items:center;
    gap:12px;
    margin-bottom:16px;
    font-size:14px;
}
.feature-icon{
    width:38px;
    height:38px;
    border-radius:12px;
    background:rgba(255,255,255,0.15);
    display:flex;
    align-items:center;
    justify-content:center;
    font-size:14px;
}
.right-side{
    padding:45px;
}
.login-badge{
    display:inline-flex;
    align-items:center;
    gap:8px;
    background:#dbeafe;
    color:#1d4ed8;
    padding:8px 18px;
    border-radius:50px;
    font-size:13px;
    font-weight:600;
    margin-bottom:20px;
}
.login-title{
    font-size:32px;
    font-weight:700;
    color:#0f172a;
    margin-bottom:10px;
}
.login-subtitle{
    color:#64748b;
    font-size:14px;
    line-height:1.8;
    margin-bottom:28px;
}
.form-label{
    font-weight:600;
    font-size:14px;
    margin-bottom:8px;
    color:#1e293b;
}
.form-control{
    height:52px;
    border-radius:15px;
    border:1px solid #dbe2ea;
    padding-left:16px;
    font-size:14px;
    box-shadow:none !important;
}
.form-control:focus{
    border-color:#2563eb;
}
.password-box{
    position:relative;
}
.show-password{
    position:absolute;
    top:50%;
    right:16px;
    transform:translateY(-50%);
    cursor:pointer;
    color:#64748b;
    font-size:17px;
}
.btn-login{
    width:100%;
    height:52px;
    border:none;
    border-radius:15px;
    background:linear-gradient(135deg,#2563eb,#1d4ed8);
    color:white;
    font-weight:600;
    font-size:15px;
    transition:0.3s;
}
.btn-login:hover{
    transform:translateY(-2px);
}
.forgot-link{
    text-decoration:none;
    color:#2563eb;
    font-size:14px;
    font-weight:500;
}
.alert-custom{
    border:none;
    border-radius:14px;
    background:#fee2e2;
    color:#dc2626;
    font-size:14px;
    padding:14px 16px;
}
.bottom-text{
    margin-top:24px;
    text-align:center;
    color:#64748b;
    font-size:13px;
}
.bottom-text b{
    color:#2563eb;
}
@media(max-width:991px){
    body{
        overflow:auto;
    }
    .login-section{
        height:auto;
        padding:20px 14px;
    }
    .login-card{
        max-height:none;
    }
    .left-side{
        display:none;
    }
    .right-side{
        padding:35px 24px;
    }
}
@media(max-width:576px){
    .login-title{
        font-size:28px;
    }
    .right-side{
        padding:30px 20px;
    }
    .form-control{
        height:50px;
    }
    .btn-login{
        height:50px;
    }
}
.btn-kembali{
    width:100%;
    height:54px;
    border-radius:16px;
    margin-top:14px;
    border:1.5px solid #dbeafe;
    background:#fff;
    color:#2563eb;
    font-weight:600;
    font-size:15px;
    display:flex;
    align-items:center;
    justify-content:center;
    text-decoration:none;
    transition:0.3s;
}
.btn-kembali:hover{
    background:#2563eb;
    color:#fff;
    border-color:#2563eb;
    transform:translateY(-2px);
}