core.scss

// config

$grid-width: 80px;
$grid-margin: 14px;
$grid-margins: $grid-margin * 2;
$grid-padding: $grid-margin;
$grid-paddings: $grid-padding * 2;
$grid-home-gutter: 4px;
$grid-home-height: 232px;
$grid-home-background: #4e8496;

$total-width: 960px;
$divider-gutter: 8px;

$font-dark: #353535;
$font-mid: #838383;
$font-light: #757575;
$font-lighter: #acacac;
$font-home-grid: #FFFFFF;
$blue: #5e9cb1;

$input-height: 28px;

// end config
// fonts

@font-face {
    font-family: 'FSJoey';
    src: url('../fonts/FSJoey-Regular.eot');
}

@font-face {
    font-family: 'FSJoey';
    src: url('../fonts/FSJoey-Regular.woff') format('woff'),
    url('../fonts/FSJoey-Regular.svg#FSJoey') format('svg');
}

@font-face {
    font-family: 'FSJoeyBold';
    src: url('../fonts/FSJoey-Bold.eot');
}

@font-face {
    font-family: 'FSJoeyBold';
    src: url('../fonts/FSJoey-Bold.woff') format('woff'),
    url('../fonts/FSJoey-Bold.svg#FSJoey') format('svg');
}

@mixin body-copy () {
    font-family:Helvetica, Arial, sans-serif;
    font-size: 13px;
    color:#757575;
}

@mixin special-copy () {
    font-family:FSJoey, Helvetica, Arial, sans-serif;
    text-transform: uppercase;
}

@mixin special-copy-bold () {
    font-family:FSJoeyBold, Helvetica, Arial, sans-serif;
    text-transform: uppercase;
}

// end fonts
// shortcuts

@mixin border-radius ($i) {
    -moz-border-radius: $i;
    -webkit-border-radius: $i;
    -o-border-radius: $i;
    -ms-border-radius: $i;
    border-radius: $i;
}

// end shortcuts
// reset

html, body, div, span, h1, h2, h3, h4, h5, h6, p, a, img, ol, ul, li, form, input, iframe, object, table, th, tr, td {
	margin: 0;
	padding: 0;
	border: 0;
	outline: 0;
	font-weight: inherit;
	font-style: inherit;
	font-size: 100%;
	font-family: inherit;
}

b,
strong {
    font-weight: bold;
}

i,
em {
    font-style: italic;
}

body {
	background-color: #ffffff;
	color: #231f20;
	font-family: Arial, Helvetica, sans-serif;
	font-size: 12px;
	line-height: 18px;
}

@mixin clearfix {
  display: inline-block;
  &:after {
    content: ".";
    display: block;
    height: 0;
    clear: both;
    visibility: hidden;
  }
  * html & { height: 1px }
}

// end reset
// grid

@mixin grid-margin () {
    margin: 0 $grid-margin 0 $grid-margin;
}

@mixin grid-padding () {
    padding: 0 $grid-padding 0 $grid-padding;
}

.grid-wrapper {
    @include clearfix;
    display: block;
    width: 960px;
    margin: 0 auto;
}

@mixin grid {
    float: left;
    display: inline;
}

$i: 1;

@while $i <= 12 {
    .grid-#{$i} {
        @include grid;
        width: $grid-width * $i;
    }

    .grid-#{$i}-margin {
        @include grid;
        @include grid-margin;
        width: $grid-width * $i - $grid-margins;
    }

    .grid-#{$i}-padding {
        @include grid;
        @include grid-padding;
        width: $grid-width * $i  - $grid-paddings;
    }
    
    $i: $i + 1;
}

@mixin grid-home {
    @include grid;
    margin: 0 $grid-home-gutter ($grid-home-gutter * 2);
    padding: 0 ($grid-margin - $grid-home-gutter);
}

@mixin home-grid ($i) {
    .grid-#{$i}-home,
    .grid-#{$i}-home .overlay {
        @include grid-home;
        width: $grid-width * $i - $grid-margins;
        background:$grid-home-background;
    }

}

@include home-grid( 3 );
@include home-grid( 6 );

@mixin grid-home-row ($n: 1) {
    .grid-home-row-#{$n},
    .grid-home-row-#{$n} .overlay {
        height: ($grid-home-height * $n) + ( ($n - 1) * ($grid-home-gutter * 2) ) - ( $grid-margin * 2 ); // double height + extra gutters
        padding-top: $grid-margin;
        padding-bottom: $grid-margin;
    }
}

@include grid-home-row( 1 );
@include grid-home-row( 2 );

// end grid
// dropdowns
.dropdownwrapper {
    cursor: pointer;
    position:relative;
    z-index:1;
    position:absolute;
    top: 0;
    left: 0;
    color:$font-dark;
    font-size: 12px;
    font-weight: normal;
}

#dropdownoverlay {
    position:absolute;
    top:0;
    left: 0;
    z-index:2;
    background:none;
}

.dropdownwrapperfocus {
    //border: 1px dotted #363636;
    border: none;
    z-index:3;
}

.dropdownwrapper .current {
    @extend .button;
}

body .dropdownwrapper .current {
    padding-top: 5px;
    height: 23px;
    position:relative;
    z-index:3;
    width: auto;
    padding-right: 23px;
    font-weight: normal;
    color:$font-light;
    padding-left: 6px;
}

body .dropdownwrapper:hover .current {
    color:$font-dark;
}

.dropdownarrow {
    position:absolute;
    top: 14px;
    right: 8px;
    z-index: 10;
    background: url(/media/images/triangle-down-5e9cb1.png) no-repeat 0 0;
    width: 5px;
    height: 3px;
}

.dropdownwrapper .current,
.dropdownwrapper .option {
    height: 20px;
}

.dropdownwrapper .options {
    display: none;
    overflow:hidden;
    overflow-y: scroll;
    margin-top: -2px;
    z-index: 1;
    padding-top: 10px;
    position:relative;
    background:#fff;
}

.dropdownwrapperfocus .options {
    display: block;
    border: 1px solid #A8A8A8;
    border-top: none;
    padding-bottom: 4px;
}

.dropdownwrapper .option {
    padding: 2px 6px 2px;
}

.dropdownwrapper .optioncurrent,
.dropdownwrapper .option:hover {
    color:$blue;
}

.dropdownparent {
    position:relative;
    height: 25px;
    float: left;
}

.dropdowned {
    opacity: 0;
    width: 1px;
    height: 1px;
}
// end dropdowns
// form

@mixin input () {
    @include body-copy;
    @include border-radius( 3px );
    border-top: 1px solid #B7B7B7;
    border-bottom: 1px solid #E8E8E8;
    border-left: 1px solid #E3E3E3;
    border-right: 1px solid #E3E3E3;
    background:#FAFAFA;
    height: $input-height;
    padding: 0 6px;
}

input.text {
    @include input;
}

.button {
    @include border-radius( 3px );
    @include body-copy;

    color:$font-light;
    background: none;
    border: none;
    margin: 0;
    padding: 0;
    -webkit-appearance:none;
    font-weight: bold;
    font-size: 12px;
    background:url(../images/button.png) repeat-x 0 0;
    height: 28px;
    padding: 0 11px;
    border-top: 1px solid #E5E5E5;
    border-left: 1px solid #DBDBDB;
    border-right: 1px solid #DBDBDB;
    border-bottom: 1px solid #949494;
    text-shadow: 0px 1px 2px #fff;
}

a.button {
    padding-top: 5px;
    height: 23px;
    display: block;
    display: inline-block;
    position:relative;
}

a.button-img-left {
    padding-left: 31px;
    img {
        opacity: 0.8;
        position:absolute;
        top: 6px;
        left: 11px;
    }

    &:hover img {
        opacity: 1;
    }
}

.button:hover,
.dropdownwrapper:hover .current {
    cursor: pointer;
    border-top-color: #B0B0B0;
    border-left-color: #A8A8A8;
    border-right-color: #A8A8A8;
    border-bottom-color: #727272;
    color:#353535;
    background-position: 0 -28px;
}

#search {
    position:relative;

    input.text {
        @include input;
        width:255px;
        padding-right: 29px;
        height: 34px;
    }
    input[type="image"] {
        position:absolute;
        top: 10px;
        right: 8px;
    }
}

// end form
// header

#header {
    padding-bottom: 24px;
    #logo {
        padding-top: 24px;
    }
    #navigation {
        padding-top: 42px;
    }
    #search {
        margin-top: 34px;
    }
}

#navigation {
    ul {
        @include clearfix;
    }
    li {
        position:relative;
        @include special-copy;
        list-style: none;
        color: $font-dark;
        float: left;
        font-size: 18px;

        a {
            color: $font-dark;
            text-decoration: none;
            line-height: 1;
            padding: 0 24px 0 0;

            .triangle {
                margin-top: -4px;
            }
        }

        a:hover {
            color: $font-light;
        }

        ul {
            display: none;
            position:absolute;
            top: 0;
            right: 0;
        }
    }
}

// end header
// footer
#footer {
    @include body-copy;
    text-transform: none;
    font-size: 12px;
    $line: 18px;

    padding-top: 18px;
    padding-bottom: 8px;
    line-height: $line;

    h3 {
        font-size: 14px;
        padding-bottom: 9px;
    }

    .triangle-right {

        margin-top: 5px;

        li {
        }

        li.break {
            margin-bottom: $line;
        }

    }

    p {
        color: $font-lighter;
        margin-bottom: $line;
    }

}

.lighter {
    a {
        color:$font-mid;
    }

    a:hover {
        color:$font-dark;
    }
}

#mailing-list {
    .text {
        width: 199px;
        margin-right: 5px;
        float: left;
    }

    button {
        float: left;
    }

    form {
        margin-top: -3px;
    }
}
// end footer
// sub-footer
#sub-footer {
    padding: 12px 0 13px;
    color:$font-lighter;
}
// end sub-footer
// misc
.triangle {
    vertical-align: middle;
}

.divider {
    background:url(../images/divider-757575.png);
    width: $total-width - $divider-gutter;
    margin: 0 auto;
    clear: both;
}

.divider-light {
    @extend .divider;
    background-image:url(../images/divider-787878.png);
    height: 1px;
}

.divider-high {
    @extend .divider;
    height: 6px;
}

ul.triangle-right {
    list-style: none;
    padding-left: 0;
    margin-left: 0;
    li {
        background:url(../images/triangle-right-ccc.png) no-repeat left center;
        padding-left: 9px;
    }
}

@mixin page {
    padding-top: 33px;
}
// end misc
// typography
h1,
h2,
h3 {
    @include special-copy-bold;
    color:$font-dark;
}

h1 {
    font-size: 24px;
    color:$font-dark;
    margin-bottom: 25px;
}

.lighter {
    @include special-copy;
    color:$font-lighter;
}

a {
    color:$font-dark;
    text-decoration: none;
}

a:hover {
    color:$font-light;
}

.bluelinks {
    color:$blue;

    &:hover {
        text-decoration: underline;
    }
}
// end typography
// home
#home {
    padding-top: 8px;

    .box {

        h2 {
            @include special-copy;
            font-size: 18px;
            color: $font-home-grid;
            opacity: 0.9;
            margin-bottom: 9px;
        }

        p {
            color:$font-home-grid;
            opacity: 0.6;
        }
        
        .overlay {
            display: block;
            position:absolute;
            top: 0;
            left: 0;
            background:rgba(35,42,47,0.2);
            margin: 0;

            img {
                position:absolute;
                bottom: 14px;
                right: 10px;
            }
        }
    }

    .box:hover {
        cursor: pointer;

        h2 {
            opacity: 1;
        }

        p {
            opacity: 0.8;
        }

        .overlay {
            background:none;
        }
    }
}
// end home
// work
#work {
    @include page;
}

@mixin h3-grid {
    font-size: 18px;
    padding-top: 32px;
    margin-bottom: 15px;
}

.workgrid {
    @include clearfix;

    padding-bottom: 31px;
    position:relative;

    .grid-2-padding {
        &:hover {
            .overlay {
                opacity: 1;
            }

            a {
                @extend .bluelinks:hover;
            }
        }

        margin-bottom: 23px;
    }

    .preview {
        width: 122px;
        height: 122px;
        padding: 4px;
        border: 1px solid #cacaca;
        margin-bottom: 8px;
        position:relative;


        a {
            width: 122px;
            height: 122px;
            display: block;
        }

        .overlay {
            position:absolute;
            top: 4px;
            left: 4px;
            opacity: 0;

            a {
            }
        }
    }

    .title {
        @extend .bluelinks;
        font-size: 11px;
        line-height: 16px;
        height: 16px;
        display: block;
        overflow: hidden;
        width: 112px;
        padding-right: 20px;
        background-repeat: no-repeat;
        background-position: right 1px;
    }

    h3 {
        @include h3-grid;
        margin-bottom: 16px;
    }

    .more {
        @extend .bluelinks;
        position:absolute;
        top: 34px;
        left: 814px;
        background: url(/media/images/circle-cross-5e9cb1.png) no-repeat 0 1px;
        font-size: 13px;
        padding-left: 20px;
    }
    

    @each $type in animation, image, video {
        .#{$type} {
            .overlay a {
                background: url(/media/images/work-overlay-#{$type}.png) no-repeat 0 0;
            }
            
            .title {
                background-image:url(/media/images/work-#{$type}.png);
            }
        }
    }
}

a.checkbox {
    background: url(/media/images/checkbox.png) no-repeat 0 -15px;
    height: 15px;
    display: block;
    padding-left: 22px;

    &.on,
    &:hover {
        background-position: 0 0px;
    }
}

.categories {
    padding-top: 3px;

    h2 {
        font-size: 18px;
        margin-bottom: 22px;
    }

    ul {
        list-style: none;
        border-top: 1px solid #ccc;
        li {
            border-bottom: 1px solid #ccc;

            a {
                @extend .bluelinks;
                display: block;
                padding: 11px 0 8px;
                font-size: 13px;

                span {
                    @extend .lighter;
                    color:#ccc;
                }
            }

            a.children {
                background: url(/media/images/triangle-down-ccc.png) no-repeat right center;
            }

            a.open {
                background: url(/media/images/triangle-up-ccc.png) no-repeat right center;
            }

            ul {
                padding-top: 9px;
                padding-bottom: 2px;
            }

            li {
                border: none;
                padding: 0;
                margin: 0;
                padding-bottom: 6px;

                a {
                    @extend .checkbox;
                    padding-top: 0;
                    padding-bottom: 0;
                    margin: 0;
                    border: none;
                    font-size: 12px;
                    color:$font-light;

                    &:hover {
                        text-decoration: none;
                    }

                    span {
                        @include body-copy;
                        color:#ccc;
                    }
                }
            }
        }

        .current {
            a {
                color:$font-light;
                font-weight: bold;
                background: none;
                &:hover {
                    text-decoration: none;
                }
            }
        }
    }
}

.pagination {
    @include clearfix;
    border-top: 1px solid #ccc;
    border-bottom: 1px solid #ccc;
    padding: 14px 0;
    margin-bottom: 28px;
    .box {
        ul {
            list-style: none;

            li {
                float: left;
                padding: 0;
                margin: 0;
            }
        }
        a {
            display: block;
            vertical-align: middle;
        }
    }

    .filters {
        label {
            float: left;
            margin-right: 8px;
            padding-top: 6px;
            color:$font-light;
        }
        li {
            width: 135px;
        }
    }

    .numbers {
        float: right;

        ul li {
            margin-left: 8px;
            vertical-align: baseline;
        }

        .ellip {
            padding-top: 6px;
        }
    }
}
// end work
// project type
#project-type {
    @include page;

    h1 {
        margin-bottom: 12px;
    }

    h2 {
        @include special-copy;
        font-size: 24px;
        text-transform:none;
        color:$font-light;
        line-height: 30px;
        margin-bottom: 29px;

        a {
            @extend .bluelinks;
        }
    }

    h3 {
        @include h3-grid;
    }

    $base-spacing: 36px;

    .video {
        width: 612px;
        height: 344px;
        background:#cf0;
        margin-top: 1px;
        margin-bottom: $base-spacing;
    }

    blockquote {
        @include special-copy;
        color:$font-light;
        text-transform: none;
        padding: 0 45px 12px 0;
        margin: 0;
        font-size: 18px;
        line-height: 24px;
        background:url(/media/images/quote.png) no-repeat right 6px;
    }

    cite {
        padding: 0;
        margin: 0;
        font-style: normal;
        font-size: 12px;
        color:#b3b3b3;
        margin-bottom: $base-spacing;
    }

    .types-list {
        a {
            @extend .bluelinks;
        }

        h3 {
            margin-bottom: 16px;
        }

        h4 {
            @include special-copy;
            text-transform: none;
            font-size: 18px;
            line-height: 1.2;
            margin-bottom: 36px;
        }
    }
}
#project-type,
#project {
    .workgrid {
        padding-bottom: 35px;
    }
}
// end project type
// project
#project-details {
    @include clearfix;

    padding-top: 36px;
    padding-bottom: 39px;

    .bread {
        padding-top: 10px;
    }

    h1 {
        margin-top: -5px;
        margin-bottom: 6px;
    }

    .ref {
        font-size: 11px;
        color:$font-lighter;
        text-transform: uppercase;
        margin-bottom: 13px;
    }

    .button {
        margin-bottom: 24px;
    }

    .tabs {
        margin-bottom: 10px;
    }
}

.bread {
    @include clearfix;
    color:#b3b3b3;
    list-style:none;
    padding: 0;
    magin: 0;

    li {
        float: left;
        margin-right: 4px;
    }

    a {
        @extend .bluelinks;
    }
}

.tabs {
    @include special-copy-bold;
    @include clearfix;
    list-style: none;
    margin: 0;
    padding: 0;
    font-size: 14px;

    width: 100%;
    clear: both;

    border-bottom: 1px solid #CCCCCC;
    border-left: 1px solid #CCCCCC;

    $height: 37px;

    li {
        float: left;
        border-top: 1px solid #CCCCCC;
        border-right: 1px solid #CCCCCC;
        height: $height;
    }

    a {
        padding: 8px 13px 0 13px;
        height: $height - 8;
        display: block;
        vertical-align: top;
        background:#fafafa;
    }

    li.current a,
    a:hover {
        background:#fff;
        padding-bottom: 1px;
        color:$font-light;
    }
}

.tabfocus {
    color:$font-mid;
}
// end project

Yeah, SASS is a lovely way to write stylesheets. Can't believe this is the first time I've ever used it on a project.