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

body{
    background:#f4f7fb;
}

/* Sidebar */

.sidebar{
    width:260px;
    min-height:100vh;
    background:#0d6efd;
    color:#fff;
}

.sidebar a{
    color:#fff;
    display:block;
    padding:12px 18px;
    text-decoration:none;
    border-radius:8px;
    transition:.2s;
}

.sidebar a:hover{
    background:rgba(255,255,255,.15);
}

.sidebar .logo{
    text-align:center;
    padding:25px;
    border-bottom:1px solid rgba(255,255,255,.2);
}

.sidebar .logo h3{
    margin-top:10px;
}

/* Header */

header{
    background:#fff;
    padding:18px 25px;
    box-shadow:0 2px 10px rgba(0,0,0,.08);
}

/* Conteúdo */

main{
    padding:25px;
}

/* Cards */

.card{
    border:none;
    border-radius:15px;
    box-shadow:0 5px 15px rgba(0,0,0,.08);
    transition:.25s;
}

.card:hover{
    transform:translateY(-4px);
}

.card-header{
    border-radius:15px 15px 0 0!important;
}

/* Botões */

.btn{
    border-radius:8px;
}

/* Responsivo */

@media(max-width:991px){

    .sidebar{
        width:100%;
        min-height:auto;
    }

}