@import url('https://fonts.googleapis.com/css?family=Lato:400,400i,700');

*,
*::before,
*::after {
    box-sizing: border-box;
}

body {
    margin: 0;
    background: #fff;
    font-family: 'Lato', sans-serif;
    color: #333;
    font-size: 1.1em;
    line-height: 1.8em;
}
h1,
h2,
h3 {
    font-weight: normal;
}

input,
textarea {
    padding: 5px;
    width: 480px;
    max-width: 100%;
    font: inherit;
}
button {
    display: block;
    color: #fff;
    padding: 15px 35px;
    background: #3d79c7;
    box-shadow: inset 0 -2px 0 rgba(0, 0, 0, 0.1);
    border-radius: 3px;
    text-decoration: none;
    border: 0 none;
    cursor: pointer;
}

.section {
    padding: 10vh 0;
}
.wrapper {
    position: relative;
    width: 90%;
    margin: 0 auto;
    max-width: 1280px;
}
.text-wrapper {
    max-width: 960px;
}

.background-highlight {
    background: #3d79c7;
    color: #fff;
}
.background-dark {
    background: #222;
    color: #fff;
}

.center {
    text-align: center;
}

/* header */
#header {
    padding: 15px 0;
}
#header .site-name {
    display: none;
}
#header .wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* navigation */
#header .navigation ul.menu,
#header .navigation ul.menu li {
    margin: 0;
    padding: 0;
    list-style: none;
}
#header .navigation ul.menu > li {
    display: inline-block;
    margin-left: 5px;
    font-weight: bold;
}
#header .navigation ul.menu li a {
    display: block;
    color: #fff;
    padding: 5px 25px;
    background: #3d79c7;
    background: url(water.jpg) -1259px -380px no-repeat;
    box-shadow: inset 0 -2px 0 rgba(0, 0, 0, 0.2);
    border-radius: 3px;
    text-decoration: none;
}

/* preface */
#preface {
    border-top: 2px solid #000;
    border-bottom: 2px solid #000;
    position: relative;
    background: url(water.jpg) center center no-repeat;
    background-size: cover;
    padding: 30px 0;
}
#preface .wrapper {
    min-height: 520px;
}
#preface .site-slogan {
    font-size: 320%;
    position: absolute;
    bottom: 0;
    right: 0;
    font-size: 2em;
    color: #fff;
}

/* primary */
#primary {
    position: relative;
}
#primary::before {
    content: '';
    opacity: 0.075;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    position: absolute;
    z-index: 0;
    overflow: visible;
    background: url(fibonacci.png) center 10px no-repeat;
    background-size: contain;
}

/* footer */
#footer {
    min-height: 50px;
}