body{
    margin:0;
    padding:0;
    background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);
    font-family:Arial,sans-serif;
    min-height:100vh;
    display:flex;
    justify-content:center;
    align-items:center;
}

.registro-container{
    width:100%;
    max-width:400px;
    padding:20px;
}

.registro-box{
    background:white;
    padding:40px;
    border-radius:10px;
    box-shadow:0 10px 25px rgba(0,0,0,.2);
}

.registro-box h2{
    text-align:center;
    margin-bottom:30px;
}

.user-box{
    margin-bottom:20px;
}

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

.message{
    padding:10px;
    border-radius:5px;
    margin-bottom:15px;
}

.error{
    background:#f8d7da;
    color:#721c24;
}

.success{
    background:#d4edda;
    color:#155724;
}

.button-group{
    display:flex;
    gap:10px;
}

button,.btn-login{
    flex:1;
    padding:12px;
    border:none;
    border-radius:5px;
    text-decoration:none;
    text-align:center;
    cursor:pointer;
}

button{
    background:#667eea;
    color:white;
}

.btn-login{
    background:#ddd;
    color:#333;
}