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

body{
    background:#f5f5f5;
}

.container{
    width:95%;
    max-width:1000px;
    margin:30px auto;
}

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

.card{
    background:#fff;
    padding:25px;
    border-radius:10px;
    box-shadow:0 0 10px rgba(0,0,0,0.1);
}

input{
    width:100%;
    padding:12px;
    margin-top:10px;
    border:1px solid #ccc;
    border-radius:5px;
}

button,
.btn{
    display:inline-block;
    background:#007bff;
    color:#fff;
    padding:12px 20px;
    border:none;
    border-radius:5px;
    text-decoration:none;
    margin-top:15px;
    cursor:pointer;
}

.btn-danger{
    background:red;
    color:#fff;
    padding:10px 15px;
    border-radius:5px;
    text-decoration:none;
}

.table-responsive{
    overflow:auto;
}

table{
    width:100%;
    border-collapse:collapse;
    background:#fff;
}

table th,
table td{
    padding:12px;
    border:1px solid #ddd;
}

.topbar{
    display:flex;
    justify-content:space-between;
    align-items:center;
    margin-bottom:20px;
}

.menu{
    display:flex;
    gap:10px;
    flex-wrap:wrap;
}

.error{
    color:red;
    margin-top:10px;
}

.success{
    color:green;
    margin-top:10px;
}

@media(max-width:768px){

    .topbar{
        flex-direction:column;
        gap:15px;
    }

    table{
        font-size:14px;
    }

}