body{
    margin:0;
    padding:0;
    font-family:Arial, sans-serif;
    background:#f1f5f9;
}

.login-container{
    width:350px;
    background:white;
    margin:100px auto;
    padding:30px;
    border-radius:10px;
    box-shadow:0 0 10px rgba(0,0,0,0.1);
}

h2{
    text-align:center;
}

input{
    width:100%;
    padding:12px;
    border:1px solid #ddd;
    border-radius:5px;
}

button{
    width:100%;
    padding:12px;
    border:none;
    background:#2563eb;
    color:white;
    border-radius:5px;
    cursor:pointer;
}

button:hover{
    opacity:0.9;
}

.error{
    color:red;
    text-align:center;
}