body {
    background-color: #f8f9fa; /* fundo claro */
    font-family: Arial, sans-serif;
}

.navbar {
    background-color: #0d1b2a; /* azul escuro */
}

.navbar-brand, 
.nav-link, 
.navbar-text {
    color: #fff !important;
}

.sidebar {
    background-color: #0d1b2a;
    min-height: 100vh;
    color: #fff;
    padding-top: 20px;
}

.sidebar a {
    display: block;
    color: #fff;
    padding: 10px 20px;
    text-decoration: none;
}

.sidebar a:hover {
    background-color: #084298;
    border-radius: 5px;
}

.content {
    padding: 20px;
}

.card {
    border-radius: 15px;
    box-shadow: 0px 0px 10px rgba(0,0,0,0.1);
}