/*
 * Base
 */
html {
    font-family: "Helvetica Neue", "Arial", "Hiragino Kaku Gothic ProN", "Meiryo", sans-serif;
    font-size: 16px;
    line-height: 1.5;
}

body {
    background-color: #656565;
}

img {
    vertical-align: middle;
}

button {
    outline: none;
}

::-moz-selection {
    background: #b3d4fc;
    text-shadow: none;
}

::selection {
    background: #b3d4fc;
    text-shadow: none;
}

.page-header {
    background-color: #fff;
}

.page-header h1 {
    width: 976px;
    height: 80px;
    margin: 0 auto;
    padding-left: 10px;
    font-size: 20px;
    font-weight: normal;
    line-height: 80px;
    letter-spacing: 0.1em;
}

.page-main {
    position: relative;
}

.page-main > div {
    padding: 50px 0 100px;
}

.page-main > div h2 {
    color: #fff;
    text-align: center;
    margin: 0 0 50px;
    font-weight: normal;
    letter-spacing: 0.15em;
}

.page-main > aside {
    background-color: rgba(0,0,0,0.8);
    width: 350px;
    height: 100%;
    top: 0;
    left: -350px;
    position: fixed;
}

.page-main > aside ul {
    margin: 0;
    padding: 0;
    top: 50px;
    left: 114px;
    position: absolute;
}

.page-main > aside li {
    margin: 0 0 20px;
    list-style: none;
}

.page-main > aside button {
    background-color: rgba(0,0,0,0.8);
    display: block;
    position: absolute;
    top: 150px;
    left: 350px;
    width: 52px;
    height: 132px;
    margin: 0;
    padding: 0;
    border: none;
}


#typo {
    margin: 0;
    padding: 0;
    background-color: #3498db;
    font-weight: bold;
    font-size: 110px;
    color: #fff;
    text-align: center;
    line-height: 500px;
    height: 500px;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
}

#buttons1 {
    background-color: #ebc000;
}

#buttons2 {
    background-color: #01b169;
    height: 340px;
}

#images {
    background-color: #ff8873;
}

#easing {
    background-color: #019faa;
}

#typo .inner,
#buttons1 .inner,
#buttons2 .inner,
#images .inner{
    position: relative;
    width: 976px;
    margin: 0 auto;
}

#buttons1 button {
    display: block;
    float: left;
    width: 224px;
    height: 80px;
    margin: 0 10px 20px;
    padding: 0;
    font-size: 16px;
    letter-spacing: 0.15em;
    color: #ebc000;
    background-color: #fff;
    border: none;
    border-radius: 20px;
}

#buttons2 button {
    display: block;
    position: absolute;
    width: 224px;
    height: 224px;
    overflow: hidden;
    padding: 0 0 35px;
    font-size: 16px;
    letter-spacing: 1px;
    color: #01b169;
    background-color: #fff;
    border: none;
    border-radius: 112px;
}
#buttons2 button:nth-child(1) {
    left: 10px;
}
#buttons2 button:nth-child(2) {
    left: 254px;
}
#buttons2 button:nth-child(3) {
    left: 498px;
}
#buttons2 button:nth-child(4) {
    left: 742px;
}

#images p {
    position: relative;
    width: 580px;
    height: 380px;
    margin: 0 auto 80px;
}

#images p strong {
    color: #fff;
    font-size: 20px;
}

.page-footer {
    background-color: #656565;
}

.page-footer small {
    display: block;
    color: #fff;
    font-size: 11px;
    text-align: right;
    width: 976px;
    margin: 0 auto;
    height: 120px;
    line-height: 120px;
    letter-spacing: 0.15em;
}

.page-footer a {
    color: #fff;
    text-decoration: none;
}

/*
 * Helpers
 */

/* Clearfix */
.clearfix:before,
.clearfix:after {
    content: " ";
    display: table;
}
.clearfix:after {
    clear: both;
}


/* #button1 2行目 */
#buttons1 button {
    border: solid 0px rgba(174,94,155,1.0);
}

/* #button1 2行目 */
#buttons1 button {
    position: relative;
}

#buttons1 button .bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 0;
    height: 100%;
    overflow: hidden;
}

#buttons1 button span span {
    display: block;
    width: 224px;
    height: 80px;
    line-height: 80px;
    color: #fff;
    background-color: #ae5e9b;
    border-radius: 20px;
}


/* #button2 */
#buttons2 button img:first-child {
    position: absolute;
}
#buttons2 button img:nth-child(2) {
    opacity: 0;
}

/* #images */
#images p {
    overflow: hidden;
}

#images p strong {
    position: absolute;
    display: block;
    z-index: 1;
    bottom: 0;
    width: 540px;
    height: 30px;
    background: rgba(0, 0, 0, 0.5);
    text-align: left;
    padding: 20px;
}

#images p span {
    position: absolute;
    display: block;
    z-index: 0;
    top: 0;
    width: 580px;
    height: 380px;
    box-shadow: inset 0 0 50px rgba(50, 30, 0, 0.6),
                inset 0 0 100px rgba(50, 30, 0, 0.3);
    background: rgba(255, 155, 0, 0.2);
    opacity: 0;
}

#images p:nth-child(1) strong　{
    opacity: 0;
}

#images p:nth-child(2) strong {
    opacity: 0;
    left: -200%;
}

#images p:nth-child(3) strong {
    bottom: -80px;
    background: rgba(34, 34, 34, 1);
}

#images p:nth-child(3) img {
    position: absolute;
    top: 0px;
}