header, nav {
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
  box-sizing: border-box;
}

* {
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
  box-sizing: border-box;
}

ul {
  list-style: none;
  margin: 0;
}

/*
 *
 * Header
 *
 */

.header {
  transition: min-height 0.3s;
  background-color: #f9f9f9;
  /*border-bottom: 1px solid #d9d9d9;*/
  }

.header__inner { /*https://www.drweb.de/elemente-zentrieren-css/*/
  display: block;
  position: relative;
  padding-top: 0.5em;
  padding-bottom: 0.5em;
  overflow: visible;
  }

.header__logo {
  width: 85px;
  margin: 0em 1.5em;
}

.header__menu {
  display: none;
}

.header__nav {
  display: block;
  margin: 0;
  padding: 0; 
}

.header__nav__list {
  margin: 0;
}

.header__nav__item1, .header__nav__item2 {
  box-sizing: border-box;
  text-align: left;
  position: relative;
  float: left;
  line-height: 24px;
  padding: 0.4em 1.5em 0.4em 1.5em;
  margin: 0 0.1em;
  font-size: 0.857em;
  display: inline-block;
  /*text-transform: uppercase;*/  
}

.header__nav__item1 a {
  text-decoration: none;
  color: #000;
}

.header__nav__item1 a:hover, .header__nav__item1 a:focus {
  border-bottom: none;
  text-decoration: none;
  padding-bottom: 3px;
}

.header__nav__item2 a {
  text-decoration: none;
  color: #1a1a1a;
}

.header__nav__item2 a:hover, .header__nav__item2 a:active {
  color:#1a1a1a;
  border-bottom: 1px #000 solid;
  padding-bottom: 3px;
}

.header__inhalte-werden-zentriert {
	display: flex;
	justify-content: center;
	align-items: center;
	}
	



.nav {
  width: 100%;
  margin-left: auto;
  margin-right: auto;
}

.nav__list {
  width: 100%;
  padding: 0;
  margin: 0;
}

.nav__item {
  box-sizing: border-box;
  display: inline-block;
  width: 24%;
  text-align: center;
  line-height: 24px;
  padding: 0.5em;
  font-size: 0.857em;
  /*text-transform: uppercase;*/
}

.nav a {
  text-decoration: none;
  color: #1a1a1a;
  padding: 1.5em;
}

.nav a:hover, .nav a:active {
	color:#1a1a1a;
}	

/* Dropdown "Über uns" */

.header__nav__item2.dropdown {
    position: relative;
}

.dropdown__menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;

    z-index: 9999;

    margin: 0;
    padding: 0.5em 0;

    min-width: 180px;

    background-color: #f9f9f9;
}

.dropdown__menu li {
    display: block;
    float: none;
    margin: 0;
    padding: 0;
}

.dropdown__menu li a {
    display: block;
    padding: 0.5em 1.5em;

    white-space: nowrap;
    text-decoration: none;
}

/* Dropdown öffnen */

.header__nav__item2.dropdown:hover .dropdown__menu {
    display: block;
}

/* Hover-Effekt für die Unterpunkte */

.dropdown__menu li a:hover {
    border-bottom: none;
    padding-bottom: 0.5em;
}

/* Mobile Untermenü */

.nav__submenu {
    display: none;
    margin: 0;
    padding: 0;
}

.nav__item--agentur.open .nav__submenu {
    display: block;
}

.nav__submenu li {
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav__submenu a {
    display: block;
    padding-left: 3em;
}



/*responsiv*/


/*iPhone*/
@media screen and (max-width: 610px) {
  .header__inner {
    width: 100%;
  }
  
  .header__menu {
    display: inline-block;
    z-index: 3;
    position: absolute;
    left: 0;
    padding: 0.8em;
  }
  
  .header__menu svg {
    width: 24px;
    fill: #424242;
  }
  
  .logo__mit__navi {
	display: none;
	}
  .nur__logo {
    display: block;
	}
  
  .nav {
    z-index: 10;
    background-color: #fff;
    width: 300px;
    position: absolute;
    /* This transform moves the drawer off canvas. */
    -webkit-transform: translate(-300px, 0);
    transform: translate(-300px, 0);
    /* Optionally, we animate the drawer. */
    transition: transform 0.3s ease;
  }
  .nav.open {
    -webkit-transform: translate(0, 0);
    transform: translate(0, 0);
  }
  .nav__item {
    display: list-item;
    border-bottom: 1px solid #E0E0E0;
    width: 100%;
    text-align: left;
  }					
}

/*Phablet*/
@media screen and (min-width: 611px) {
    
    .logo__mit__navi {
    display: none;
	}
    .nur__logo {
    display: block;
	}
	
	.header__menu {
    display: inline-block;
    z-index: 3;
    position: absolute;
    left: 0;
    padding: 0.8em;
    }
    .header__menu svg {
    width: 24px;
    fill: #424242;
  	}
  	.nav {
    z-index: 10;
    background-color: #fff;
    width: 300px;
    position: absolute;
    /* This transform moves the drawer off canvas. */
    -webkit-transform: translate(-300px, 0);
    transform: translate(-300px, 0);
    /* Optionally, we animate the drawer. */
    transition: transform 0.3s ease;
    }
    .nav.open {
    -webkit-transform: translate(0, 0);
    transform: translate(0, 0);
    }
    .nav__item {
    display: list-item;
    border-bottom: 1px solid #E0E0E0;
    width: 100%;
    text-align: left;
  }			
}

@media screen and (min-width: 700px) {
	
		
}

@media screen and (min-width: 850px) {
	 
	
	.logo__mit__navi {
    display: block;
	}
    .nur__logo {
    display: none !important;
	}
	
	.nav {
	display: none;
	width: 100%;
	position: relative;
	-webkit-transform: translate(0, 0);
	transform: translate(0, 0);
	}
	.nav__list {
	width: 100%;
	padding: 0;
	margin: 0;
	}
	.nav__item {
	box-sizing: border-box;
	display: block;
	float: left;
	width: 23%;
	/*margin: 0 1.0% 0 1.0%;*/
	text-align: center;
	line-height: 1rem;
	padding: 0.5em;
	font-size: 0.857rem;
	}

	/*.nav a {
	text-decoration: none;
	color: #212121;
	padding: 1.5em;
	}

	.nav a:hover {
	text-decoration: underline;
	color: #333;
	}	*/
	  		
}

@media screen and (min-width: 1280px) {
    .header__inner, .nav {
	width: 1280px;
    margin-left: auto;
    margin-right: auto;
	}      
}

@media screen and (min-width: 1440px) {
  .header__inner, .nav {
	width: 1440px;
    margin-left: auto;
    margin-right: auto;
	}  
}

@media screen and (min-width: 2100px) {
  .header__inner, .nav {
    width: 2100px;
    margin-left: auto;
    margin-right: auto;
    }  
}