* {
    box-sizing: border-box;
}

body {
    background: url('../images/concrete.jpg');
    font-size: 18px;
    line-height: 34px;
    font-family: 'Arial', 'Helvetica Neue', Helvetica, sans-serif;
    color: #777; 
}

.container {
    width: 100%;
    max-width: 960px;
    margin: 0 auto;
    clear: both;
}

h1, h2, h3, p {
    margin-bottom: 0;
}

p:last-child {
    margin-bottom: 0;
}

h1, h2, h3 {
    font-family: 'Georgia', Times, Times New Roman, serif;
    font-weight: 700;
    color: #4aaaa5; 
}

h1 {
    font-size: 30px;
    line-height: 49px;
    border-bottom: 3px solid #ddd;
    padding-bottom: 20px;
}

h2, h3 {
    font-size: 22px;
}

/*header*/

#masthead {
    background: #fff;
    margin: 0 0 30px;
    z-index: 99;
    color: #fff;
    overflow: auto;
    border-bottom: 2px solid #ccc;
    position: fixed;
    width: 100%;
}

#logo {
    width: 250px;
    height: 90px;
    background: #4aaaa5;
    float: left;
    font-family: 'Georgia' , Times, Times New Roman, serif;
    text-align: center;
    line-height: 90px;
    color: #fff;
    font-weight: 700;
    font-size: 30px;
    text-decoration: none;
}

nav {
    float: right;
    margin-top: 25px;
}

nav a {
    color: #999;
    text-decoration: none;
    margin-left: 15px;
    display: inline-block;
    border-left: 1px solid #efefef;
    padding-left: 15px;
    line-height: 18px;
}

nav a:first-child {
    border-left: 0 none;
}

/*main*/
#main-container {
    padding-top: 130px;
}

.main-section {
    background: #fff;
    padding: 30px;
    margin: 0 0 40px;
    width: 100%;
    max-width: 650px;
    float: left;
    border: 2px solid #ccc;
}

.auth-image {
    width: 200px;
    height: auto;
    margin-top: 10px;
    float: left;
    margin-right: 25px;
}

/*sidebar*/
.sidebar {
    background: #fff;
    padding: 30px;
    width: 100%;
    max-width: 270px;
    float: right;
    border: 1px solid #ddd;
    margin-bottom: 20px;
}

h3, .sidebar. h2 {
    border-bottom: 2px solid #eee;
    padding-bottom: 20px;
    margin-bottom: 15px;
    line-height: 22px;
}

.social {
    width: 62px;
    height: 62px;
    margin-top: 8px;
    margin-right: 5px;
}

.social:last-child {
    margin-right: 0;
}

/*footer*/

footer {
    background: #666;
    border-top: 8px solid #4aaaa5;
    text-align: center;
    color: #ccc;
    text-align: center;
    padding: 30px 0;
    margin-top: 30px;
    position: static;
    bottom: 0;
    width: 100%;
}

/*portfolio*/
.work {
    width: 274px;
    overflow: auto;
    position: relative;
    float: left;
    margin: 20px 0 25px;
}

.work:nth-last-of-type(even) {
    float: right;
}
.work img{
    width: 100%;
    border: 0 none;
    opacity: .8;
}

.work h3 {
    border-bottom: 0;
    background: #4aaaa5;
    color: #fff;
    text-align: center;
    position: absolute;
    bottom: 20px;
    padding: 15px;
    width: 100%;
    line-height: 30px;
    margin-bottom: 0;
    font-weight: 300;
}

/*contact*/

#contact-form ul {
    margin-bottom: 20px;
}

#contact-form li {
    margin-bottom: 10px;
}

label,
input[type=text],
input[type=email],
textarea {
    display: block;
    width: 100%;
}

input[type=text],
input[type=email],
textarea{
    height: 35px;
    border: 1px solid #ddd;
    padding: 0 10px;
    font-size: 14px;
}

textarea {
    height: 200 px;
}

input[type=textarea],
input[type=message],
textarea {
    height: 300px;
}

input[type=submit] {
    background: #4aaaa5;
    border: 0 none;
    color: #fff;
    font-size: 18px;
    padding: 10px 30px;
    cursor: pointer;
}

/* MEDIA QUERIES */

/* Small Screens*/
@media screen and (max-width: 640px) {
    main, body, .nav, .bio, .container, .auth-image, .main-container img
    {
        width: 100%;
    }

    footer
    {
        position: fixed;
        bottom: 0;
        width: 100%;
    }

    #masthead, #logo, nav
    {
        position: static;
        width: 100%;
        text-align: center;
    }

    #main-container
    {
        padding: 0px;
        width: 90%;
    }
}

/* Medium Screens*/ 
@media screen and (min-width: 641px) and (max-width: 768px) {
    main, body, .nav, .bio, .container, #main-container, .main-container, footer
    {
        width: 100%;
    }

    footer
    {
        position: fixed;
        bottom: 0;
        width: 100%;;
    }

    #logo
    {
        margin-left: 20px;
    }

    nav
    {
        margin-right: 20px;
    }

    .main-container
    {
        margin-left: 50px;
        margin-bottom: 200px;
    }
}

/* Large Screens*/
@media screen and (min-width:769px) and (max-width: 980px) {
    main, body, .nav, .bio, .container
    {
        width: 100%;
    }

    footer
    {
        position: fixed;
        width: 100%;
        bottom: 0;
    }

    #logo, .main-container
    {
        margin-left: 25px;
    }
}