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

body{

    background:linear-gradient(135deg,#0f172a,#1d4ed8);

    height:100vh;

    display:flex;

    justify-content:center;

    align-items:center;
}

.login-container{

    width:950px;

    height:560px;

    background:#FFF;

    border-radius:18px;

    overflow:hidden;

    display:flex;

    box-shadow:0 25px 60px rgba(0,0,0,.30);

}

.login-left{

    width:45%;

    background:linear-gradient(135deg,#2563eb,#0f172a);

    color:white;

    display:flex;

    flex-direction:column;

    justify-content:center;

    align-items:center;

    padding:40px;

}

.logo{

    width:120px;

    margin-bottom:25px;

}

.login-left h1{

    font-size:32px;

    margin-bottom:20px;

}

.login-left p{

    text-align:center;

    line-height:28px;

    opacity:.9;

}

.login-right{

    width:55%;

    display:flex;

    justify-content:center;

    align-items:center;

}

form{

    width:360px;

}

form h2{

    text-align:center;

    margin-bottom:35px;

    color:#0f172a;

}

.input-group{

    display:flex;

    align-items:center;

    border:1px solid #dcdcdc;

    border-radius:10px;

    margin-bottom:18px;

    overflow:hidden;

}

.input-group i{

    width:55px;

    text-align:center;

    color:#2563eb;

    font-size:18px;

}

.input-group input{

    width:100%;

    border:none;

    padding:16px;

    outline:none;

    font-size:15px;

}

.btn-login{

    width:100%;

    padding:16px;

    background:#2563eb;

    color:white;

    border:none;

    border-radius:10px;

    cursor:pointer;

    font-size:16px;

    transition:.3s;

}

.btn-login:hover{

    background:#1e40af;

    transform:translateY(-2px);

}

.alert{

    background:#ffe5e5;

    color:#b00020;

    padding:12px;

    border-radius:8px;

    text-align:center;

    margin-bottom:20px;

}

@media(max-width:900px){

.login-container{

    width:95%;

    height:auto;

    flex-direction:column;

}

.login-left{

    width:100%;

    padding:30px;

}

.login-right{

    width:100%;

    padding:40px 20px;

}

form{

    width:100%;

}

}