@import "https://fonts.googleapis.com/css?family=DM+Sans:400,700&display=swap";

:root {
    --duration: .8s;
    --ease: cubic-bezier(.7, 0, .3, 1)
}

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

* {
    margin: 0;
    padding: 0;
    list-style-type: none
}

html, body {
    height: 100%;
    width: 100%;
    margin: 0;
    padding: 0
}

body {
    background: #000;
    color: #fff;
    font-family: dm sans, sans-serif
}

img {
    max-width: 100%
}

#app {
    height: 100%;
    width: 100%;
    display: grid;
    grid-template-columns: 1;
    grid-template-rows: 1fr 1fr
}

.planet {
    grid-column: 1;
    grid-row: 1/-1;
    overflow: hidden;
    height: 100%;
    width: 100%;
    display: grid;
    grid-template-columns: 10% 40% 40% 10%;
    grid-template-rows: 10% 1fr 1fr;
    grid-template-areas: "header header header header" "x title details y" "x planet photos photos"
}

.planet > .planet-title {
    display: block;
    grid-area: title
}

.planet > .planet-figure {
    max-width: 900px;
    grid-column: 1/-1;
    grid-row: planet;
    padding: 0;
    margin: 0 auto;
    position: relative
}

.planet > .planet-figure img {
    margin-bottom: -50%;
    max-width: 100%
}

.planet > .planet-figure::after {
    content: '';
    position: fixed;
    bottom: 0%;
    top: 0%;
    width: 100%;
    left: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.7) 0%, transparent 30%);
    z-index: 2
}

.planet > .planet-details {
    grid-area: details;
    display: flex;
    flex-direction: row;
    justify-content: space-between
}

.detail {
    font-size: 5vmin;
    width: 3em;
    font-weight: 400;
    display: flex;
    margin-left: .4em;
    flex-shrink: 0;
    align-self: start
}

.detail:after {
    content: attr(data-postfix)
}

.detail:before {
    display: block;
    position: absolute;
    top: 100%;
    margin-top: 1rem;
    font-size: .75rem;
    text-transform: uppercase;
    opacity: .6;
    letter-spacing: 1px
}

.detail[data-detail=hours]:before {
    content: "最大在线时长"
}

.detail[data-detail=gravity]:before {
    content: "在线人数"
}

.detail[data-detail=tilt]:before {
    content: "入驻数量"
}

h1, h2 {
    margin: 0
}

.planet {
    visibility: hidden;
    transition: visibility .01s linear var(--duration)
}

.planet[data-active] {
    visibility: visible;
    opacity: 1;
    transition-delay: 0s
}

.planet .planet-title .word {
    overflow: hidden
}

.planet .planet-title .char {
    -webkit-transform: translateY(100%);
    transform: translateY(100%);
    transition: -webkit-transform var(--duration) var(--ease);
    transition: transform var(--duration) var(--ease);
    transition: transform var(--duration) var(--ease), -webkit-transform var(--duration) var(--ease);
    transition-delay: calc(var(--char-index) * .1s)
}

.planet[data-active] .planet-title .char {
    -webkit-transform: translateY(0%);
    transform: translateY(0%);
    transition-delay: calc((var(--duration) / 2) + (var(--char-index) * .1s))
}

.planet .planet-details {
    visibility: hidden
}

.planet[data-active] .planet-details {
    visibility: visible
}

.planet .planet-figure {
    opacity: 0;
    transition: opacity var(--duration) var(--ease)
}

.planet[data-active] .planet-figure {
    opacity: 1
}

#app {
    overflow: hidden
}

.planet-nav {
    grid-column: 1;
    grid-row: 2;
    pointer-events: none;
    z-index: 10;
    display: flex;
    position: absolute;
    left: 0;
    right: 0;
    margin: auto;
    bottom: 0;
    max-width: 1000px
}

.planet-nav svg {
    display: block;
    width: auto;
    height: auto;
    min-width: 100%;
    max-width: none;
    min-height: 100vh;
    margin-bottom: -50%
}

@media (max-width: 600px) {
    .planet-nav svg {
        margin-bottom: -55%
    }
}

.planet-nav tspan {
    cursor: pointer;
    fill: #fff;
    pointer-events: auto;
    opacity: 0;
    transition: opacity var(--duration) linear
}

.planet-nav tspan[x] {
    opacity: .6
}

.planet-nav tspan:hover, .planet-nav tspan:focus {
    opacity: 1
}

.planet-nav svg {
    -webkit-transform-origin: center center;
    transform-origin: center center;
    --length: 7;
    --range: 160deg;
    -webkit-transform: rotate(calc((var(--active, 0) / var(--length)) * (-1 * var(--range)) + (var(--range) / 2)));
    transform: rotate(calc((var(--active, 0) / var(--length)) * (-1 * var(--range)) + (var(--range) / 2)));
    transition: -webkit-transform var(--duration) var(--ease);
    transition: transform var(--duration) var(--ease);
    transition: transform var(--duration) var(--ease), -webkit-transform var(--duration) var(--ease)
}

.planet-nav tspan {
    cursor: pointer
}