body {
    margin: 0;
}

.top-container {
    background-image: url("https://images.unsplash.com/photo-1535957998253-26ae1ef29506?ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D&auto=format&fit=crop&w=436&q=80");
    height: 100vh;
    background-size: cover;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
}

.top-container h1 {
    color: #f7f4f7;
    font-size: 50px;
    font-family: Impact, Haettenschweiler, 'Arial Narrow Bold', sans-serif;
    letter-spacing: 2px;
}

.text {
    margin: 50px 5%;
    font-family: sans-serif;
}

#center {
    text-align: center;
}

.navbar {
    display: flex;
    position: fixed;
    background-color: #fff;
    width: 100%;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 4px 8px rgba(0, 0, 0, .3);
    padding-left: 3rem; 
    transition: background-color 0.4s;
}

.navbar ul {
    display: flex;
    list-style: none;
}

.navbar ul li a {
    text-decoration: none;
    margin: 0 10px;
    font-family: cursive;
    font-size: 1.5rem;
}

.navbar ul li a:hover {
    color: red;
}

.navbar.active {
    background-color: black;
}

.navbar.active ul li a {
    color: #fff;
}

.navbar .nav-header {
    margin-top: .3rem;
    margin-bottom: .3rem;
}

.navbar.active .nav-header {
    background-color: wheat;
    border-radius: 15px;
}

.navbar .btn {
    padding-right: 9rem;
    font-size: .8rem;
}

.navbar .btn i {
    padding: .2rem .2rem;
    border-radius: 7px;
}
.navbar .btn i:hover {
    color: #fff;
    background-color: black;
}

.navbar.active .btn i {
    color: #fff;
}

/*---------MEDIA---------*/
@media (max-width: 690px) {
    .navbar {
        display: flex;
        padding-left: 0; 
    } 

    ul a {
        display: none;
    }

    .navbar .btn {
        padding-right: 1rem;
    }
}


@media (max-width: 460px) {

    .navbar {
        display: flex;
        padding-left: 0; 
    } 

    ul a {
        display: none;
    }

    .navbar .nav-header {
        display: flex;
        margin-left: .5rem;
    }

    .navbar.active .nav-header {
        background-color: wheat;
        border-radius: 15px;
    }

    .navbar .btn {
        padding-right: 1rem;
    }

    .top-container h1 {
        font-size: 2rem;
        font-weight: normal;
    }
}