* {
    box-sizing: border-box;
}

input,
button,
textarea {
    font-family: inherit;
    -webkit-appearance: none;
}

html,
body {
    height: 100%;
}

body {
    background: #181818;
    font-family:  Montserrat, Helvetica Neue,PingFang SC,Helvetica,Arial,Hiragino Sans GB,Microsoft Yahei,\\5FAE\8F6F\96C5\9ED1,STHeiti,\\534E\6587\7EC6\9ED1,sans-serif;
    overflow: hidden;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-size: inherit;
    font-weight: normal;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
    -webkit-appearance: none;
    outline: none;
    border-radius: 0;
    background: none;
    border: none;
}

main {
    display: flex;
    justify-content: center;
    height: 100%;
    min-height: 100%;
    width: 100%;
}

canvas {
    position: absolute;
    top: 0;
    left: 0;
}

.plate {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 1rem 0;
    text-align: center;
    color: white;
    letter-spacing: 4px;
    font-size: 0.6em;
    line-height: 2.5;
}

a {
    text-underline: none;
    -webkit-appearance: none;
}

.social {
    padding-top: 1rem;
}
.social svg {
    height: 1.25rem;
    margin: 0 0.5rem;
    fill: rgba(255, 255, 255, 0.3);
    transition: all 0.2s ease;
}
.social svg:hover {
    fill: white;
}
.social a {
    vertical-align: middle;
    display: inline-block;
    opacity: 0;
    visibility: hidden;
    transition: all 0.7s ease 0.15s;
}
.social__twitter {
    -webkit-transform: translateX(-10px);
    transform: translateX(-10px);
}
.social__codepen {
    -webkit-transform: translateX(10px);
    transform: translateX(10px);
}
.social.active {
    opacity: 1;
}
.social.active a {
    opacity: 1;
    visibility: visible;
    -webkit-transform: none;
    transform: none;
}

.mouse {
    position: absolute;
    top: 0;
    left: 0;
    text-align: center;
    padding: 1rem 0;
    z-index: 2;
    color: rgba(255, 255, 255, 0.3);
    width: 100%;
    letter-spacing: 6px;
    font-size: 0.45em;
    line-height: 2.5;
    text-transform: uppercase;
    transition: all 0.5s ease;
    opacity: 0;
    -webkit-transform: translateY(-15px);
    transform: translateY(-15px);
}
.mouse.active {
    -webkit-transform: none;
    transform: none;
    opacity: 1;
}

.text-animation {
    opacity: 0;
}
.text-animation.active {
    opacity: 1;
}
.text-animation .letter {
    opacity: 0;
    transition: color 0.5s ease, opacity 0.3s ease;
    -webkit-transform-origin: bottom;
    transform-origin: bottom;
    color: white;
}
.text-animation .letter.active {
    color: rgba(255, 255, 255, 0.3);
    opacity: 1;
    -webkit-transform: none;
    transform: none;
    -webkit-animation: color 5s ease infinite 3s;
    animation: color 5s ease infinite 3s;
}

@-webkit-keyframes color {
    0% {
        color: white;
    }
    20% {
        color: rgba(255, 255, 255, 0.3);
    }
    100% {
        color: rgba(255, 255, 255, 0.3);
    }
}

@keyframes color {
    0% {
        color: white;
    }
    20% {
        color: rgba(255, 255, 255, 0.3);
    }
    100% {
        color: rgba(255, 255, 255, 0.3);
    }
}