nav {
    display: flex;
    height: 80px;
    width: 100%;
    background-color: #FFF;
    align-items: center;
    justify-content: space-between;
    padding: 14px 50px 0 100px;
    flex-wrap: wrap;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.5);
    position: fixed;
    z-index: 999;
    margin-top: -80px;
}

nav .logo {
    width: 100px;
    height: 30px;
    font-size: 25px;
    margin-left: -50px;
    margin-top: -50px;
    padding: 0;
    font-weight: 600;
}

.logo img {
    width: 85px;
}

nav ul {
    display: flex;
    flex-wrap: wrap;
    list-style: none;
}

nav ul li {
    margin: 10px 5px;
}

nav ul li a {
    color: rgb(0, 0, 0);
    text-decoration: none;
    font-size: 15px;
    font-weight: 600;
    padding: 8px 15px;
    border-radius: 5px;
    letter-spacing: 1px;
    transition: all 0.3s ease;
    text-transform: uppercase;
}

nav ul li a:hover {
    color: #494949;
    border-radius: 25px;
    transition: 1s;
}

nav ul li a.active,
nav ul li a:hover {
    background: #E5E5E5;
}

nav .menu-btn i {
    color: #000;
    border: 3px solid #000;
    border-radius: 10px;
    padding: 3px;
    cursor: pointer;
    display: none;
}

.redes-menu {
    text-decoration: none;
    letter-spacing: 35px;
    color: #000;
    margin-right: 10px;
}

#facebook-nav,
#instagram-nav {
    border: 3px solid #000;
    width: 42px;
    height: 44px;
    padding: 5px;
    border-radius: 10px;
}

#facebook-nav:hover,
#instagram-nav:hover {
    border: 3px solid #494949;
    color: #494949;
    cursor: pointer;
    background-color: rgb(228, 228, 228);
    transition: 1s;
}

@media (max-width: 1280px) {
    nav {
        padding: 0 20px 0 100px;
    }
    nav .logo {
        margin-top: -35px;
        margin-left: -80px;
    }
    nav .menu-btn i {
        display: block;
    }
    nav ul {
        position: fixed;
        top: 80px;
        left: -100%;
        background-color: #FFF;
        height: 100vh;
        width: 100%;
        text-align: center;
        display: block;
        transition: all 0.3s ease;
    }
    .redes-menu {
        position: fixed;
        top: 18px;
        right: 65px;
        width: 100px;
        letter-spacing: 10px;
    }
    nav ul.open {
        left: 0;
    }
    nav ul li {
        width: 100%;
        margin: 50px 0 50px -10px;
    }
    nav ul li a {
        font-size: 18px;
    }
    nav ul li a.active,
    nav ul li a:hover {
        background: none;
        color: #494949;
    }
}

@media(min-width:1281px) and (max-width: 1600px) {
    nav ul li a {
        font-size: 12px;
    }
    #facebook-nav,
    #instagram-nav {
        border: 2px solid #000;
        width: 35px;
        height: 35px;
        padding: 5px;
        border-radius: 8px;
    }
    #facebook-nav:hover,
    #instagram-nav:hover {
        border: 2px solid #494949;
        color: #494949;
        cursor: pointer;
        background-color: rgb(228, 228, 228);
        transition: 1s;
    }
    .redes-menu {
        letter-spacing: 25px;
        margin-right: 10px;
        margin-top: 5px;
    }
}