body{
    margin:0;
    height:100vh;
    display:flex;
    justify-content:center;
    align-items:center;
    background:#0f172a;
    font-family:Calibri;
}

.login-box{
    width:350px;
    background:#1e293b;
    padding:35px;
    border-radius:12px;
    box-shadow:0 0 25px rgba(0,0,0,0.4);
}

.login-box h2{
    color:white;
    text-align:center;
    margin-bottom:25px;
}

.login-box input{
    width:100%;
    padding:12px;
    margin-bottom:15px;
    border:none;
    border-radius:6px;
    background:#334155;
    color:white;
    box-sizing:border-box;
}

.login-box input::placeholder{
    color:#cbd5e1;
}

.login-box button{
    width:100%;
    padding:12px;
    border:none;
    border-radius:6px;
    background:#2563eb;
    color:white;
    cursor:pointer;
    font-size:16px;
}

.login-box button:hover{
    background:#1d4ed8;
}

.error{
    background:#7f1d1d;
    color:white;
    padding:10px;
    border-radius:6px;
    margin-bottom:15px;
    text-align:center;
}