body {
    background-image: url('/img/impresa-pulizie-uffici-torino.jpg');
    background-size: cover;
    background-attachment: fixed;
    position: relative;
    z-index: 1;
}

body::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: -1;
}

header, footer, main {
    position: relative;
    z-index: 2;
}

.card-title, .card-text, .btn, .navbar-brand, .nav-link {
    color: black;
}

.phone-number {
    background-color: #4CAF50;
    color: white;
    padding: 5px 10px;
    border-radius: 5px;
    font-weight: bold;
    display: flex;
    align-items: center;
    margin-left: 10px;
}

.phone-number i {
    margin-right: 5px;
}

.navbar-custom {
    background-color: white;
}

.navbar-nav .nav-link {
    color: black;
    margin-left: 15px;
}

.navbar-nav .nav-link:hover {
    color: #4CAF50;
}

.navbar-brand {
    display: flex;
    align-items: center;
    color: black;
}

.navbar-toggler {
    border-color: rgba(0, 0, 0, 0.1);
}

.navbar-toggler-icon {
    background-image: url("data:image/svg+xml;charset=utf8,%3Csvg viewBox='0 0 30 30' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath stroke='rgba%280, 0, 0, 0.5%29' stroke-width='2' stroke-linecap='round' stroke-miterlimit='10' d='M4 7h22M4 15h22M4 23h22'/%3E%3C/svg%3E");
}