Me desapareció la barra de menú

Si, toqué el archivo style.css (la parte del comienzo, branding y access) para intentar hacer los dos cambios que comento al principio de mi post y además de no conseguir solucionarlo me encuentro con que me desapareció el color gris de la barra de menús.

Dejo aquí mi archivo style.css para ver si alguien me puede ayudar. Muchas gracias.

html, body, div, span, applet, object, iframe,
h1, h2, h3, h4, h5, h6, p, blockquote, pre,
a, abbr, acronym, address, big, cite, code,
del, dfn, em, font, ins, kbd, q, s, samp,
small, strike, strong, sub, sup, tt, var,
dl, dt, dd, ol, ul, li,
fieldset, form, label, legend,
table, caption, tbody, tfoot, thead, tr, th, td {
border: 0;
font-family: inherit;
font-size: 100%;
font-style: inherit;
font-weight: inherit;
margin: 0;
outline: 0;
padding: 0;
vertical-align: baseline;
}
:focus {/* remember to define focus styles! */
outline: 0;
}
body {
background: #fff;
line-height: 1;
}
ol, ul {
list-style: none;
}
table {/* tables still need ‘cellspacing=»0″‘ in the markup */
border-collapse: separate;
border-spacing: 0;
}
caption, th, td {
font-weight: normal;
text-align: left;
}
blockquote:before, blockquote:after,
q:before, q:after {
content: «»;
}
blockquote, q {
quotes: «» «»;
}
a img {
border: 0;
}
article, aside, details, figcaption, figure,
footer, header, hgroup, menu, nav, section {
display: block;
}

/* =Structure
———————————————– */

body {
padding: 0 2em;
}
#page {
margin: 2em auto;
max-width: 1000px;
}
#branding hgroup {
margin: 0 7.6%;
}
#access div {
margin: 0 7.6%;
}
#primary {
float: left;
margin: 0 -26.4% 0 0;
width: 100%;
}
#content {
margin: 0 34% 0 7.6%;
width: 58.4%;
}
#secondary {
float: right;
margin-right: 7.6%;
width: 18.8%;
}

/* Singular */
.singular #primary {
margin: 0;
}
.singular #content,
.left-sidebar.singular #content {
margin: 0 7.6%;
position: relative;
width: auto;
}
.singular .entry-header,
.singular .entry-content,
.singular footer.entry-meta,
.singular #comments-title {
margin: 0 auto;
width: 68.9%;
}

/* Attachments */
.singular .image-attachment .entry-content {
margin: 0 auto;
width: auto;
}
.singular .image-attachment .entry-description {
margin: 0 auto;
width: 68.9%;
}

/* Showcase */
.page-template-showcase-php #primary,
.left-sidebar.page-template-showcase-php #primary {
margin: 0;
}
.page-template-showcase-php #content,
.left-sidebar.page-template-showcase-php #content {
margin: 0 7.6%;
width: auto;
}
.page-template-showcase-php section.recent-posts {
float: right;
margin: 0 0 0 31%;
width: 69%;
}
.page-template-showcase-php #main .widget-area {
float: left;
margin: 0 -22.15% 0 0;
width: 22.15%;
}

/* error404 */
.error404 #primary {
float: none;
margin: 0;
}
.error404 #primary #content {
margin: 0 7.6%;
width: auto;
}

/* Alignment */
.alignleft {
display: inline;
float: left;
margin-right: 1.625em;
}
.alignright {
display: inline;
float: right;
margin-left: 1.625em;
}
.aligncenter {
clear: both;
display: block;
margin-left: auto;
margin-right: auto;
}

/* Right Content */
.left-sidebar #primary {
float: right;
margin: 0 0 0 -26.4%;
width: 100%;
}
.left-sidebar #content {
margin: 0 7.6% 0 34%;
width: 58.4%;
}
.left-sidebar #secondary {
float: left;
margin-left: 7.6%;
margin-right: 0;
width: 18.8%;
}

/* One column */
.one-column #page {
max-width: 690px;
}
.one-column #content {
margin: 0 7.6%;
width: auto;
}
.one-column #nav-below {
border-bottom: 1px solid #ddd;
margin-bottom: 1.625em;
}
.one-column #secondary {
float: none;
margin: 0 7.6%;
width: auto;
}
/* Simplify the showcase template */
.one-column .page-template-showcase-php section.recent-posts {
float: none;
margin: 0;
width: 100%;
}
.one-column .page-template-showcase-php #main .widget-area {
float: none;
margin: 0;
width: auto;
}
.one-column .page-template-showcase-php .other-recent-posts {
border-bottom: 1px solid #ddd;
}
/* Simplify the showcase template when small feature */
.one-column section.featured-post .attachment-small-feature {
border: none;
display: block;
height: auto;
max-width: 60%;
position: static;
}
.one-column article.feature-image.small {
margin: 0 0 1.625em;
padding: 0;
}
.one-column article.feature-image.small .entry-title {
font-size: 20px;
line-height: 1.3em;
}
.one-column article.feature-image.small .entry-summary {
height: 150px;
overflow: hidden;
padding: 0;
text-overflow: ellipsis;
}
.one-column article.feature-image.small .entry-summary a {
left: -9%;
}
/* Remove the margin on singular articles */
.one-column.singular .entry-header,
.one-column.singular .entry-content,
.one-column.singular footer.entry-meta,
.one-column.singular #comments-title {
width: 100%;
}
/* Simplify the pullquotes and pull styles */
.one-column.singular blockquote.pull {
margin: 0 0 1.625em;
}
.one-column.singular .pull.alignleft {
margin: 0 1.625em 0 0;
}
.one-column.singular .pull.alignright {
margin: 0 0 0 1.625em;
}
.one-column.singular .entry-meta .edit-link a {
position: absolute;
left: 0;
top: 40px;
}
.one-column.singular #author-info {
margin: 2.2em -8.8% 0;
padding: 20px 8.8%;
}
/* Make sure we have room for our comment avatars */
.one-column .commentlist > li.comment {
margin-left: 102px;
width: auto;
}
/* Make sure the logo and search form don’t collide */
.one-column #branding #searchform {
right: 40px;
top: 4em;
}
/* Talking avatars take up too much room at this size */
.one-column .commentlist > li.comment {
margin-left: 0;
}
.one-column .commentlist > li.comment .comment-meta,
.one-column .commentlist > li.comment .comment-content {
margin-right: 85px;
}
.one-column .commentlist .avatar {
background: transparent;
display: block;
padding: 0;
top: 1.625em;
left: auto;
right: 1.625em;
}
.one-column .commentlist .children .avatar {
background: none;
padding: 0;
position: absolute;
top: 2.2em;
left: 2.2em;
}
.one-column #respond {
width: auto;
}

/* =Global
———————————————– */

body, input, textarea {
color: #373737;
font: 15px «Helvetica Neue», Helvetica, Arial, sans-serif;
font-weight: 300;
line-height: 1.625;
}
body {
background: #e2e2e2;
}
#page {
background: #fff;
}

/* Headings */
h1,h2,h3,h4,h5,h6 {
clear: both;
}
hr {
background-color: #ccc;
border: 0;
height: 1px;
margin-bottom: 1.625em;
}

/* Text elements */
p {
margin-bottom: 1.625em;
}
ul, ol {
margin: 0 0 1.625em 2.5em;
}
ul {
list-style: square;
}
ol {
list-style-type: decimal;
}
ol ol {
list-style: upper-alpha;
}
ol ol ol {
list-style: lower-roman;
}
ol ol ol ol {
list-style: lower-alpha;
}
ul ul, ol ol, ul ol, ol ul {
margin-bottom: 0;
}
dl {
margin: 0 1.625em;
}
dt {
font-weight: bold;
}
dd {
margin-bottom: 1.625em;
}
strong {
font-weight: bold;
}
cite, em, i {
font-style: italic;
}
blockquote {
font-family: Georgia, «Bitstream Charter», serif;
font-style: italic;
font-weight: normal;
margin: 0 3em;
}
blockquote em, blockquote i, blockquote cite {
font-style: normal;
}
blockquote cite {
color: #666;
font: 12px «Helvetica Neue», Helvetica, Arial, sans-serif;
font-weight: 300;
letter-spacing: 0.05em;
text-transform: uppercase;
}
pre {
background: #f4f4f4;
font: 13px «Courier 10 Pitch», Courier, monospace;
line-height: 1.5;
margin-bottom: 1.625em;
overflow: auto;
padding: 0.75em 1.625em;
}
code, kbd, samp, var {
font: 13px Monaco, Consolas, «Andale Mono», «DejaVu Sans Mono», monospace;
}
abbr, acronym, dfn {
border-bottom: 1px dotted #666;
cursor: help;
}
address {
display: block;
margin: 0 0 1.625em;
}
ins {
background: #fff9c0;
text-decoration: none;
}
sup,
sub {
font-size: 10px;
height: 0;
line-height: 1;
position: relative;
vertical-align: baseline;
}
sup {
bottom: 1ex;
}
sub {
top: .5ex;
}
small {
font-size: smaller;
}

/* Forms */
input[type=text],
input[type=password],
input[type=email],
input[type=url],
input[type=number],
textarea {
background: #fafafa;
-moz-box-shadow: inset 0 1px 1px rgba(0,0,0,0.1);
-webkit-box-shadow: inset 0 1px 1px rgba(0,0,0,0.1);
box-shadow: inset 0 1px 1px rgba(0,0,0,0.1);
border: 1px solid #ddd;
color: #888;
}
input[type=text]:focus,
input[type=password]:focus,
input[type=email]:focus,
input[type=url]:focus,
input[type=number]:focus,
textarea:focus {
color: #373737;
}
textarea {
padding-left: 3px;
width: 98%;
}
input[type=text],
input[type=password],
input[type=email],
input[type=url],
input[type=number] {
padding: 3px;
}
input#s {
background: url(images/search.png) no-repeat 5px 6px;
-moz-border-radius: 2px;
border-radius: 2px;
font-size: 14px;
height: 22px;
line-height: 1.2em;
padding: 4px 10px 4px 28px;
}
input#searchsubmit {
display: none;
}

/* Links */
a {
color: #1982d1;
text-decoration: none;
}
a:focus,
a:active,
a:hover {
text-decoration: underline;
}

/* Assistive text */
.assistive-text {
position: absolute !important;
clip: rect(1px 1px 1px 1px); /* IE6, IE7 */
clip: rect(1px, 1px, 1px, 1px);
}
#access a.assistive-text:active,
#access a.assistive-text:focus {
background: #f9f9f9;
border-bottom: 10px solid #ddd;
color: #1982d1;
clip: auto !important;
font-size: 12px;
position: absolute;
text-decoration: underline;
top: 0;
left: 7.6%;
}

/* =Header
———————————————– */

#branding {
border-top: 0px solid #bbb;
padding-bottom: 10px;
position: relative;
z-index: 9999;
}
#site-title {
margin-right: 0px;
padding: 0.0em 0 0;
}
#site-title a:hover,
#site-title a:focus,
#site-title a:active {
color: #bbb;
}
#site-description {
color: #bbb;
font-size: 14px;
margin: 10 100px 3.65625em 0;
}
#branding img {
height: auto;
display: block;
width: 100%;

}
#site-title
margin-right: 10px;
padding-bottom: 0;
padding-left: 0;
padding-right: 0;
padding-top: 1.65625em;
}

/* =Menu
————————————————————– */

#access {
background: #222; /* Show a solid color for older browsers */
background: -moz-linear-gradient(#bbb, #0a0a0a);
background: -o-linear-gradient(#bbb, #0a0a0a);
background: -webkit-gradient(linear, 0% 0%, 0% 100%, from(#bbb), to(#0a0a0a)); /* older webkit syntax */
background: -webkit-linear-gradient(#252525, #0a0a0a);
-webkit-box-shadow: rgba(0, 0, 0, 0.4) 0px 1px 2px;
-moz-box-shadow: rgba(0, 0, 0, 0.4) 0px 1px 2px;
box-shadow: rgba(0, 0, 0, 0.4) 0px 1px 2px;
clear: both;
display: block;
float: left;
margin: 20 auto 160px;
width: 100%;

}
#access ul {
font-size: 13px;
list-style: none;
margin: 0 0 0 -0.8125em;
padding-left: 0;
}
#access li {
float: left;
position: relative;
}
#access a {
color: #eee;
display: block;
line-height: 3.333em;
padding: 0 1.2125em;
text-decoration: none;
}
#access ul ul {
-moz-box-shadow: 0 3px 3px rgba(0,0,0,0.2);
-webkit-box-shadow: 0 3px 3px rgba(0,0,0,0.2);
box-shadow: 0 3px 3px rgba(0,0,0,0.2);
display: none;
float: left;
margin: 0;
position: absolute;
top: 3.333em;
left: 0;
width: 188px;
z-index: 99999;
}
#access ul ul ul {
background: #f9f9f9;
left: 100%;
top: 0;
}
#access ul ul a {
background: #f9f9f9;
border-bottom: 1px dotted #bbb;
color: #444;
font-size: 13px;
font-weight: normal;
height: auto;
line-height: 1.4em;
padding: 10px 10px;
width: 168px;
}
#access li:hover > a,
#access ul ul :hover > a,
#access a:focus {
background: #efefef;
}
#access li:hover > a,
#access a:focus {
background: #f9f9f9; /* Show a solid color for older browsers */
background: -moz-linear-gradient(#f9f9f9, #e5e5e5);
background: -o-linear-gradient(#f9f9f9, #e5e5e5);
background: -webkit-gradient(linear, 0% 0%, 0% 100%, from(#f9f9f9), to(#e5e5e5)); /* Older webkit syntax */
background: -webkit-linear-gradient(#f9f9f9, #e5e5e5);
color: #373737;
}
#access ul li:hover > ul {
display: block;
}
#access .current-menu-item > a,
#access .current-menu-ancestor > a,
#access .current_page_item > a,
#access .current_page_ancestor > a {
font-weight: bold;
}

/* Search Form */
#branding #searchform {
position: absolute;
top: 3.8em;
right: 7.6%;
text-align: right;
}
#branding #searchform div {
margin: 0;
}
#branding #s {
float: right;
-webkit-transition-duration: 400ms;
-webkit-transition-property: width, background;
-webkit-transition-timing-function: ease;
-moz-transition-duration: 400ms;
-moz-transition-property: width, background;
-moz-transition-timing-function: ease;
-o-transition-duration: 400ms;
-o-transition-property: width, background;
-o-transition-timing-function: ease;
width: 72px;
}
#branding #s:focus {
background-color: #f9f9f9;
width: 196px;
}
#branding #searchsubmit {
display: none;
}
#branding .only-search #searchform {
top: 5px;
z-index: 1;
}
#branding .only-search #s {
background-color: #666;
border-color: #000;
color: #222;
}
#branding .only-search #s,
#branding .only-search #s:focus {
width: 85%;
}
#branding .only-search #s:focus {
background-color: #bbb;
}
#branding .with-image #searchform {
top: auto;
bottom: -27px;
max-width: 195px;
}
#branding .only-search + #access div {
padding-right: 205px;
}

¿Cómo lo hago? ¿Se eliminará el contenido, widgets, etc?
Muchas gracias por la ayuda.