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

body{
    height:100vh;
    display:flex;
    justify-content:center;
    align-items:center;
    background:#0f172a;
    background-image: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
}

.login-box{
    width:400px;
    background:#111c33;
    padding:40px;
    border-radius:16px;
    box-shadow:0 0 25px rgba(0,0,0,0.4);
    color:#fff;
}

.login-box h1{
    margin-bottom:10px;
    font-size:28px;
}

.login-box p{
    color:#94a3b8;
    margin-bottom:30px;
}

.form-group{
    margin-bottom:20px;
}

.form-group label{
    display:block;
    margin-bottom:8px;
    font-size:14px;
}

.form-group input{
    width:100%;
    padding:14px;
    border:none;
    border-radius:10px;
    background:#1e293b;
    color:#fff;
    font-size:15px;
}

.form-group input:focus{
    outline:none;
    border:1px solid #38bdf8;
}

.btn-login{
    width:100%;
    padding:14px;
    border:none;
    border-radius:10px;
    background:#2563eb;
    color:#fff;
    font-size:16px;
    cursor:pointer;
    transition:0.3s;
}

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

.erro{
    background:#7f1d1d;
    color:#fecaca;
    padding:12px;
    border-radius:10px;
    margin-bottom:20px;
    font-size:14px;
}