body{
    margin:0;
    font-family:Arial;
    background:#0b0f1a;
    color:#fff;
}

.app{
    min-height:100vh;
}

.topbar{
    display:flex;
    justify-content:space-between;
    padding:15px;
    background:#111827;
}

.content{
    padding:20px;
}

/* LOGIN */
.login{
    display:flex;
    justify-content:center;
    align-items:center;
    height:100vh;
}

.login-box{
    width:90%;
    max-width:380px;
    background:#111827;
    padding:25px;
    border-radius:15px;
    text-align:center;
}

input{
    width:100%;
    padding:14px;
    margin:8px 0;
    border:none;
    border-radius:10px;
    background:#1f2937;
    color:#fff;
}

button, .btn{
    width:100%;
    padding:14px;
    margin-top:10px;
    border:none;
    border-radius:10px;
    background:linear-gradient(90deg,#7c3aed,#2563eb);
    color:#fff;
    text-align:center;
    text-decoration:none;
}

/* CARD */
.card{
    background:linear-gradient(135deg,#7c3aed,#2563eb);
    padding:20px;
    border-radius:15px;
}

.error{
    color:red;
}