Problema de superposición de logo y menú en Wordpress

/*-----------------------------------------------------------------------------------*/
/*	5.	Header
/*-----------------------------------------------------------------------------------*/

#header {
	position: fixed;
	-webkit-backface-visibility: hidden;
	backface-visibility: hidden;
	z-index:4000;
	display: block;
	width: 100%;
	top: 0;
	-webkit-transition:all 0.2s linear;
    -moz-transition:all 0.2s linear;
    -o-transition:all 0.2s linear;
    transition:all 0.2s linear;	
}

#header .percent-one-fourth, #header .percent-three-fourth {
	margin-bottom: 0;
}

.solid-header {
	background: #fff;
}

.transparent-header {
	background: rgba(255,255,255,0.75);
	box-shadow: none;
}

#header.tr-header {
	background: transparent;
}

.no-rgba .transparent-header {
	background: url(images/no-rgba-white.png) repeat scroll 0 0;
}

.home .no-csstransforms #header.no-header {
	display: none;
}

.home #header.no-header {
	-webkit-transform: translateY(-100%);
	-moz-transform: translateY(-100%);
	transform: translateY(-100%);
}



.home #header.no-header.show {
	-webkit-transform: translateY(0%);
	-moz-transform: translateY(0%);
	transform: translateY(0%);	
}

#header.scrolled-header .logo img {
	margin-top: 0;
}

.scrolled-header .sf-menu ul {
	padding-top: 18px;
}

.nav-btn {
    font-size: 28px;
    right: 15px;
    position: absolute;
    cursor: pointer;
    color: #323232;
    top: 3px;
}

.nav-btn.dark-things {
	color: #fff;
}

.nav-btn i {

}

.portfolio-title {
    font-size: 24px;
    margin: 0;
    font-weight: bold;
    padding-bottom: 5px;
}

.float-left {
	float: left;
}

.logo {
	position:fixed;

}

.logo img {
	display:inline-block;
	vertical-align: bottom;
	
}

#navigation {
	float:left;
	position:relative;
	z-index:10000;
}

#navigation.mobile {
	display: none;
}

#navigation.desktop {
	display: block !important;
}

ul#mainnav {
	float: right;
	position:relative;
	display:block;
	z-index:1001;
	padding-top: 10px;
	margin-right:-10px;
}

ul#mainnav li a i {
	margin-left: 10px;
}

ul#mainnav li {
	display:inline-block;
	float:left;
	position:relative;
	z-index:1000;
}

ul#mainnav > li {
	background: url(images/nav-bg.png) no-repeat scroll right center;
}

.dark-header ul#mainnav > li {
	background: url(images/nav-bg-dark.png) no-repeat scroll left center;
}

ul#mainnav > li.prev-item, ul#mainnav > li.previ-item {
	background:none;
}

ul#mainnav > li:last-child {
	background:none;
}

ul#mainnav > li.highlighted-state > a span, ul#mainnav > li.current > a span {
	padding-bottom: 2px;	
}

ul#mainnav li a {
	font: 14px/20px 'Open Sans', Open Sans, Helvetica, Arial, sans-serif;
	position:relative;
	font-weight: 700;
	color:#404040;
	margin: 0 10px;
	padding: 0 15px 0;
	height:25px;
	line-height:25px;
	display:inline-block;
	*display:block; /* IE7 Hack */
	-webkit-transition:all 0.2s linear;
    -moz-transition:all 0.2s linear;
    -o-transition:all 0.2s linear;
    transition:all 0.2s linear;
	z-index:100;
}

.dark-header ul#mainnav li a {
	color: #fafafa;
}

.dark-header ul#mainnav > li > a:hover > span {
	border-bottom:1px solid #fff;
}

.dark-header ul#mainnav > li.item-active > a, .dark-header ul#mainnav > li > a.sf-with-ul:hover, .dark-header ul#mainnav li > a.sf-with-ul:active, .dark-header ul#mainnav > li > a.sf-with-ul:hover, .dark-header ul#mainnav li > a.sf-with-ul:active, .dark-header ul#mainnav li a:hover, .dark-header ul#mainnav li a:active, .dark-header ul#mainnav li a.current-menu-item {
	color:#fff;
}

ul#mainnav > li > a:hover > span{
	border-bottom:1px solid #323232;
	padding-bottom:2px;
}

ul#mainnav > li.item-active > a {
	color:#323232;	
}

ul#mainnav > li > a.sf-with-ul:hover, ul#mainnav li > a.sf-with-ul:active {
	color:#323232;
}



ul#mainnav > li.current-menu-item > a span {
	padding-bottom:2px;	
}

ul#mainnav > li > a.sf-with-ul:hover, ul#mainnav li > a.sf-with-ul:active {
	color:#323232;
}

ul#mainnav li a:hover, ul#mainnav li a:active, ul#mainnav li a.current-menu-item {
	color:#323232;
}

ul#mainnav li ul li a.current-menu-item {
	color:#444;
	background:#fff;
}
ul#mainnav li ul li a.current-menu-item:hover {
	color:#fff;
	background:#444;
}

ul#mainnav li ul li {
	margin:0;	
	float:right;
	width:100%;
}

ul#mainnav li ul li a, ul#mainnav li ul li ul li a, ul#mainnav li ul li a:visited, ul#mainnav li ul li a:active  { /* visited pseudo selector so IE6 applies text colour*/
	width:170px;
	padding: 9px 15px;
	display: inline-block;
	text-decoration:none;
	z-index:1100;
	position:relative;
	font-size: 11px !important;
	margin: 0;
	font-weight: 600;
	height: auto;
	line-height: inherit;
}

.nav-first-item {
	z-index:1000;
	position:relative;
}

#nav ul#mainnav > li > ul > li.nav-last-item > a, #nav  ul#mainnav > li > ul > li > ul > li.nav-last-item > a {
	border-bottom:0 none;
}