*{
    margin:0;
    padding:0;
    box-sizing:border-box;
    font-family:Arial, Helvetica, sans-serif;
}

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

.container{
    width:100%;
    max-width:420px;
    background:#1e293b;
    padding:30px;
    border-radius:12px;
    box-shadow:0 10px 30px rgba(0,0,0,.3);
}

h2{
    color:#fff;
    text-align:center;
    margin-bottom:20px;
}

input{
    width:100%;
    padding:12px;
    margin-bottom:15px;
    border:none;
    outline:none;
    border-radius:8px;
    background:#334155;
    color:#fff;
}

input::placeholder{
    color:#cbd5e1;
}

button{
    width:100%;
    padding:12px;
    border:none;
    border-radius:8px;
    background:#3b82f6;
    color:#fff;
    cursor:pointer;
    font-size:16px;
    transition:.3s;
}

button:hover{
    background:#2563eb;
}

p{
    margin-top:15px;
    text-align:center;
    color:#fff;
}

a{
    color:#60a5fa;
    text-decoration:none;
}

a:hover{
    text-decoration:underline;
}

@media(max-width:480px){
    .container{
        margin:15px;
        padding:20px;
    }
}