@charset "UTF-8";

html {
    font-size: 100%;
}
body {
    color: #121212;
    font-family: 'Noto Sans JP', sans-serif;
}
a {
    color: #121212;
    text-decoration: none;
}
img {
    max-width: 100%;
    vertical-align: bottom;
}
li {
    list-style: none;
}
.container {
    margin-left: 300px;
}
.wrapper {
    max-width: 900px;
    padding: 80px 20px;
    margin: 0 auto;
}
.site-title {
    width: 200px;
    line-height: 1px;
    margin-bottom: 30px;
}
.site-title a {
    display: block;
}

.sec-title {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 1.75rem;
    margin-bottom: 60px;
    text-align: center;
}
.sec-title::before,
.sec-title::after {
    border-top: 1px solid;
    content: "";
    width: 28%;
}

/* -------------------------------
ヘッダー
-------------------------------- */
#header {
    width: 300px;
    height: 100%;
    background-color: #fff;
    padding: 40px 50px 30px 45px;
    position: fixed;
    top: 0;
    overflow-y: auto;
}
#header .nav-menu {
    margin-bottom: 60px;
}
#header li {
    font-size: 0.875rem;
    padding: 8px 0;
}

/* -------------------------------
Video
-------------------------------- */
#video {
    width: 100%;
    height: 100vh;
}
#video .bg-video {
    position: fixed;
    top: -220px;
    z-index: -10;
}

/* -------------------------------
Project
-------------------------------- */
#project {
    background: linear-gradient(rgba(0,0,0,0),rgba(0,0,0,0.8));
    color: #fff;
}
#project .list {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
}
#project .list li {
    width: 47%;
    border: solid 1px #fff;
    margin-bottom: 50px;
    position: relative;
}
#project .list li:last-child,
#project .list li:nth-last-child(2) {
    margin-bottom: 0;
}
#project .list li a {
    display: block;
}
#project .list li a::after {
    content: "";
    box-shadow:0 -30px 15px -1px #2e2e2e inset;
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
}
#project .list .name {
    color: #fff;
    font-size: 0.75rem;
    position: absolute;
    bottom: 4px;
    left: 7px;
    z-index: 5;
}

/* -------------------------------
Feature
-------------------------------- */
#feature {
    background: rgba(0, 0, 0, 0.8);
    color: #fff;
    padding-bottom: 80px;
}
#feature .list {
    display: flex;
    justify-content: space-between;
}
#feature .list li {
    width: 30%;
    font-size: 0.875rem;
    text-align: center;
}
#feature .list li a {
    width: 100%;
    border: solid 1px #fff;
    border-radius: 50%;
    color: #fff;
    display: block;
    padding: calc(50% - 11px) 0;
    margin-bottom: 15px;
    text-align: center;
    position: relative;
    overflow: hidden;
}
#feature .list li a::before {
    content: "";
    width: 100%;
    height: 100%;
    background-color: #fff;
    position: absolute;
    top: 0;
    left: -100%;
    opacity: 0.3;
    transition: 0.5s;
}
#feature .list li a:hover::before {
    left: 0;
}
#feature .list .title {
    font-size: 1rem;
    font-weight: bold;
    margin-bottom: 5px;
}


/* -------------------------------
Flow
-------------------------------- */
#flow {
    background-color: #fff;
    padding-top: 40px;
}
#flow .step {
    display: flex;
    margin-top: 60px;
}
#flow .figure {
    position: relative;
}
#flow .figure::before {
    content: "";
    width: 50px;
    height: 600px;
    background-color: #ffdd00;
    position: absolute;
    top: 0;
    left: 75px;
}
#flow .figure li {
    width: 200px;
    height: 80px;
    line-height: 80px;
    background-color: #414141;
    color: #fff;
    font-size: 0.875rem;
    margin-bottom: 60px;
    position: relative;
    text-align: center;
}
#flow .figure li::before {
    content: "";
    border-top: 30px solid #414141;
    border-left: 100px solid transparent;
    border-right: 100px solid transparent;
    position: absolute;
    top: 80px;
    right: 0;
    left: 0;
    margin: 0 auto;
}
#flow .figure li:last-child {
    margin-bottom: 0;
}
#flow .description {
    margin-left: 10%;
}
#flow .description dt {
    border-bottom: solid 1px #121212;
    font-size: 1.25rem;
    padding-bottom: 8px;
    margin-bottom: 10px;
    position: relative;
}
#flow .description dt span {
    width: 35px;
    height: 35px;
    line-height: 35px;
    background-color: #414141;
    border-radius: 50%;
    color: #fff;
    display: block;
    font-size: 1rem;
    text-align: center;
    position: absolute;
    bottom: 0;
    left: -45px;
}
#flow .description dd {
    margin-bottom: 43px;
}
#flow .description dd:last-child {
    margin-bottom: 0;
}

/* -------------------------------
Contact
-------------------------------- */
#contact {
    background-color: #fff;
    padding-bottom: 80px;
}
#contact .link {
    display: flex;
    justify-content: space-between;
    margin-top: 60px;
}
#contact .link .item {
    width: 30%;
    display: block;
    border: solid 1px #121212;
    font-size: 0.875rem;
    position: relative;
    padding: 50px 0;
    text-align: center;
    transition: 0.1s;
}
#contact .link .item::before {
    content: "";
    border-top: 20px solid transparent;
    border-right: 20px solid #121212;
    position: absolute;
    right: 4px;
    bottom: 4px;
}
#contact .link .item:hover {
    outline: solid 3px #121212;
}
#contact .link .item img {
    margin-bottom: 5px;
}

/* -------------------------------
フッター
-------------------------------- */
#footer {
    background-color: #121212;
    color: #fff;
    padding: 20px 0;
}
#footer .menu {
    color: #fff;
    display: flex;
    justify-content: center;
    margin: 30px 0 60px 0;
}
#footer .menu li {
    border-right: solid 1px #fff;
    font-size: 0.875rem;
    padding: 0 20px;
}
#footer .menu li:last-child {
    border-right: none;
}
#footer .menu li a {
    color: #fff;
}
#footer .copyright {
    font-size: 0.75rem;
    text-align: center;
}


/* -------------------------------
トップへ戻るボタン
-------------------------------- */

#to-top {
    width: 50px;
    height: 50px;
    background-color: #121212;
    border: solid 1px #fff;
    border-radius: 50%;
    position: fixed;
    right: 25px;
    bottom: 25px;
}

#to-top::after {
    content: "";
    border-left: 7px solid transparent;
    border-right: 7px solid transparent;
    border-bottom: 7px solid #fff;
    position: relative;
    left: 17px;
    bottom: 3px;
}

/* -------------------------------
SP
-------------------------------- */

@media screen and (max-width: 960px) {
    .container {
        margin-left: 0;
    }
    .wrapper {
        padding: 60px 20px;
    }
    .site-title {
        width: 180px;
        margin-bottom: 0;
        position: relative;
        left: 18px;
        top: 10px;
    }
    .sec-title {
        font-size: 1.25rem;
        margin-bottom: 30px;
    }
    .sec-title::before,
    .sec-title::after {
        width: 18%;
    }

/* -------------------------------
ヘッダー
-------------------------------- */
    #header {
        width: 100%;
        height: 72px;
        padding: 0;
        z-index: 10;
    }
    #navi {
        width: 300px;
        background: #fff;
        padding: 25px;
        position: fixed;
        top: 0;
        left: -300px;
        bottom: 0;
        opacity: 0;
        overflow-y: auto;
        transition: 0.5s;
        z-index: 20;
    }
    .open #navi {
        left: 0;
        opacity: 1;
    }
    #navi ul.nav-menu {
        margin-bottom: 30px;
    }
    #navi ul li {
        padding: 10px 0;
    }
    .hamburger {
        width: 30px;
        height: 30px;
        cursor: pointer;
        position: fixed;
        top: 22px;
        right: 18px;
        transition: 0.5s;
        z-index: 20;
    }
    .hamburger span {
        width: 30px;
        height: 2px;
        background-color: #121212;
        border-radius: 4px;
        display: block;
        position: absolute;
        left: 0;
        transition: 0.5s;
    }
    .hamburger span:nth-child(1) {
        top: 4px;
    }
    .hamburger span:nth-child(2) {
        top: 14px;
    }
    .hamburger span:nth-child(3) {
        bottom: 4px;
    }
    .open .hamburger span {
        background-color: #fff;
    }
    .open .hamburger span:nth-child(1) {
        transform: translateY(10px) rotate(-315deg);
    }
    .open .hamburger span:nth-child(2) {
        opacity: 0;
    }
    .open .hamburger span:nth-child(3) {
        transform: translateY(-10px) rotate(315deg);
    }
    #mask {
        display: none;
        transition: 0.5s;
    }
    .open #mask {
        width: 100%;
        height: 100%;
        background-color: #000;
        cursor: pointer;
        display: block;
        opacity: 0.8;
        position: fixed;
        top: 0;
        left: 0;
        z-index: 10;
    }

/* -------------------------------
Video
-------------------------------- */
    #video {
        height: 80vh;
    }
    #video .bg-video {
        height: 520px;
        top: 72px;
        left: 0;
        right: 0;
        margin: 0 auto;
    }
/* -------------------------------
Project
-------------------------------- */

    #project .list {
        flex-direction: column;
    }
    #project .list li {
        width: 100%;
        margin-bottom: 30px;
    }
    #project .list li:nth-last-child(2) {
        margin-bottom: 30px;
    }

/* -------------------------------
Feature
-------------------------------- */
    #feature {
        padding-bottom: 60px;
    }

/* -------------------------------
Flow
-------------------------------- */

    #flow {
        padding-top: 0;
    }
    #flow .step {
        flex-direction: column;
        align-items: center;
        margin-top: 30px;
    }

    #flow .figure {
        margin-bottom: 80px;
    }

    #flow .figure::before {
        left: 0;
        right: 0;
        margin: 0 auto;
    }
    #flow .figure li {
        width: calc(100vw - 80px);
    }
    #flow .figure li::before {
        border-left: calc(50vw - 40px) solid transparent;
        border-right: calc(50vw - 40px) solid transparent;
    }
    #flow .description {
        margin-left: 50px;
    }

/* -------------------------------
Contact
-------------------------------- */
    #contact {
        padding-bottom: 60px;
    }
    #contact .link {
        flex-direction: column;
        align-items: center;
        margin-top: 30px;
    }
    #contact .link .item {
        width: 60%;
        margin: 20px 0 0 0;
    }
    #contact .link .item:first-child {
        margin-top: 0;
    }

/* -------------------------------
フッター
-------------------------------- */
    #footer .menu {
        flex-wrap: wrap;
    }
    #footer .menu li {
        margin-bottom: 10px;
    }
}