:root {
    --bg: #000000;
    --in: #444;
    --out: #181818;
    --btn-bg: #E3BA14;
    --btn-text-hover: #fff;
    --btn-text: #000;
}

::selection {
    color: #fff;
    background: rgba(255, 83, 83, 0.816);
}

/* Scroll-bar */
::-webkit-scrollbar {
    width: 9px;
}

::-webkit-scrollbar-track {
    background: var(--out);
}

::-webkit-scrollbar-thumb {
    background: var(--in);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--in);
}

::-webkit-scrollbar-button {
    background: var(--out);
}

/* Preload Image */
body::after {
    position: absolute;
    width: 0;
    height: 0;
    overflow: hidden;
    z-index: -1;
    content: url(./images/Content-frame.png,./images/nav-1.png) url(./images/nav-2.png) url(./images/nav-3.png) url(./images/north-bg.jpg) url(./images/middle-bg.jpg) url(./images/south-bg.jpeg) url(./images/music-btn.png) url(./images/up-hover.gif);
}

/* Tag */
* {
    padding: 0;
    margin: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Times New Roman', serif;
    background-image: url(./images/main-bg.png);
    background-repeat: no-repeat;
    background-size: cover;
    background-attachment: fixed;
}

div {
    display: block;
}

h1 {
    font-size: 2vw;
}

h3 {
    font-size: 1.3vw;
}

p {
    font-size: 1vw;
}

button {
    margin-top: 1%;
    font-size: 2vw;
    display: block;
    width: 100%;
    border: none;
    border-radius: 2%;
    padding: 1%;
    -webkit-border-radius: 2%;
    -moz-border-radius: 2%;
    -ms-border-radius: 2%;
    -o-border-radius: 2%;
    -webkit-user-select: none;
    -webkit-touch-callout: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}

button:hover {
    background-color: var(--btn-bg);
    color: var(--btn-text-hover);
}

/* Loading */
.waviy {
    position: relative;
    text-align: center;
    top: 45vh;
}

#loading-container.active {
    z-index: 100;
    display: block;
    height: 100%;
    position: fixed;
    width: 100%;
    background-image: url(./images/load-bg.png);
    background-size: cover;
    background-repeat: no-repeat;
    top: 0;
    left: 0;
}

#loading-container {
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}

#loading-container.active .prompt {
    display: none;
}

#loading-container .caution {
    display: none;
}

#loading-container.active~#content-container,
#loading-container.active~#sp-container {
    display: none;
}

#loading-container .prompt {
    color: white;
    margin: 0;
    position: absolute;
    top: 40%;
    left: 50%;
    -ms-transform: translate(-50%, -50%);
    transform: translate(-50%, -50%);
}
#loading-container.active .caution {
    color: white;
    margin: 0;
    position: absolute;
    top: 40%;
    left: 50%;
    -ms-transform: translate(-50%, -50%);
    transform: translate(-50%, -50%);
    margin-top: 10%;
}
#loading-container.active .caution p{
    font-size: 7vw;
}
#loading-container.active .caution img{
    width: 100%;
}

#loading-container .buttons {
    width: 100%;
    position: absolute;
    margin-top: 10px;
}

/* Content */
#content-container {
    position: relative;
    height: 100%;
    background-color: transparent;
}

.container {
    height: 107vh;
    background-color: transparent;
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center;
}

.container.north {
    background-image: url(./images/north-bg.jpg);
}

.container.middle {
    background-image: url(./images/middle-bg.jpg);
}

.container.south {
    background-image: url(./images/south-bg.jpeg);
}

.block {
    position: relative;
    margin-left: 50%;
    margin-right: 10%;
    top: 12%;
}

.block .content {
    width: 40vw;
    height: 40vw;
    padding-top: 25%;
    background-image: url("./images/Content-frame.png");
    background-repeat: no-repeat;
    background-position: center;
    background-size: contain;
}

.block button {
    display: block;
    font-size: 1.4vw;
    width: fit-content;
    margin-left: 8%;
    margin-top: 4%;
}


.block div {
    display: block;
    padding-left: 8%;
    color: azure;
}

.paragraph {
    height: fit-content;
    overflow-wrap: break-word;
    width: 87%;
    text-align: justify;
    padding-top: 5%;
    overflow: hidden;
    display: block;
    max-height: 70vh;
    display: box;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    text-overflow: ellipsis;
}

.heading {
    padding-top: 20%;
}

/* Special */
#credit {
    color: #fff;
    right: 1%;
    position: fixed;
    top: 0;
}

#progress-bar {
    background-image: url("./images/nav-1.png");
    background-color: transparent;
    background-size: contain;
    background-repeat: no-repeat;
    width: 19vw;
    height: 29vh;
    left: 0;
    position: fixed;
    bottom: 0;
}

#navigator {
    position: fixed;
    width: 30vh;
    height: 10vh;
    top: 0;
    left: 0;
    -webkit-user-select: none;
    -webkit-touch-callout: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}

.nav-item {
    display: inline-block;
    height: 100%;
}

#navigator .music-btn {
    border: none;
    background-color: transparent;
    width: 10vh;
    height: 10vh;
}

#navigator .music-btn.on {
    background: url("./images/music-btn.png") 0 0;
    background-size: cover;
    background-repeat: no-repeat;
}

#navigator .music-btn.on:hover {
    background: url("./images/music-btn.png") -10vh 0;
    background-size: cover;
    background-repeat: no-repeat;
}

#navigator .music-btn.off {
    background: url("./images/music-btn.png") -20vh 0;
    background-size: cover;
    background-repeat: no-repeat;
}

#navigator .music-btn.off:hover {
    background: url("./images/music-btn.png") -30vh 0;
    background-size: cover;
    background-repeat: no-repeat;
}


#navigator .sp-btn {
    background-image: url("./images/letter.png");
    background-color: transparent;
    width: 40%;
    border: none;
    background-repeat: no-repeat;
    background-size: cover;
}

#navigator .sp-btn:hover {
    background-image: url("./images/letter-hover.png");
    background-color: transparent;
    width: 40%;
}

#go-to-top {
    display: none;
    position: fixed;
    bottom: 1%;
    right: 1%;
    z-index: 99;
    border: none;
    outline: none;
    background-color: transparent;
    background-image: url("./images/up.png");
    background-repeat: no-repeat;
    background-size: contain;
    cursor: pointer;
    width: 10vh;
    height: 10vh;
}

#go-to-top:hover {
    background-image: url("./images/up-hover.gif");
}

@media all and (orientation:portrait) {
    .caution {
        display: block;
    }
}