:root {
    --back: #020032;
    --blue: #1DBFBF;
    --gradiant: linear-gradient(270deg, rgba(29,191,191,1) 0%, rgba(28,117,188,1) 100%);
    --gradiant-reverse: linear-gradient(270deg, rgba(28,117,188,1) 0%, rgba(29,191,191,1) 100%);

    --font-family: 'Montserrat', sans-serif;
    --font-family-second: 'Roboto', sans-serif;
}

*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

::-moz-selection {
    color: #fff;
    background: #000
}
  
::selection {
    color: #fff;
    background: #000;
}

html {
    box-sizing: border-box;
    font-size: 62.5%;
    margin: 0;
    font-family: var(--font-family);
}

img {
    max-width: 100%;
}

@media (max-width: 87.5em) {
    html {
        font-size: 55%;
    }
}

/* grid */
.container {
    max-width: 140rem;
    margin: 0 auto;
    position: relative;
}

.row {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
}

.col-6 {
    flex-basis: 50%;
    width: 50%;
}

.hero {
    background-color: var(--back);
    height: 100vh;
    width: 100%;
    padding: 4rem 14rem;
}

/* header */
.header {
    position: absolute;
}

.header img {
    max-width: 18rem;
}

/* content */
.content h1 {
    /*font-size: 6vw;*/
    font-size: 10rem;
    color: #fff;
    text-transform: uppercase;
    font-weight: 900;
    margin: 0 0 3rem 0;
    line-height: 1;
}

.content h1 .header-line {
    color: var(--back);
	text-shadow: 1px 1px 0 var(--blue), -1px -1px 0 var(--blue), 1px -1px 0 var(--blue),
    -1px 1px 0 var(--blue), 1px 1px 0 var(--blue);
    display: block;
}

.content h1 .header-full span {
    color: var(--blue);
}

.content p {
    color: #fff;
    font-size: 2.4rem;
    font-weight: 300;
}

/* social */
.social {
    position: absolute;
    right: 6rem;
    top: 50%;
    transform: translateY(-50%);
}
.social ul {
    list-style-type: none;
}

.social li a {
    display: block;
    transition: all .4s;
    margin: 2rem 0;
}

.social li a img {
    max-width: 100%;
    width: 4rem;
}

.social li a:hover {
    opacity: .7;
}

/* cta */
.cta-wrapper {
    margin-top: 4rem;
}

.cta-wrapper .btn {
    display: inline-block;
    min-width: 22rem;
    padding: 1.8rem 3rem;
    background: var(--gradiant);
    color: #fff;
    text-transform: uppercase;
    font-weight: 900;
    font-size: 1.8rem;
    text-align: center;
    margin-right: 2rem;
    text-decoration: none;
}

.cta-wrapper .btn:hover {
    background: var(--gradiant-reverse);
}

.cta-wrapper .btn.btn-reverse {
    background: transparent;
    border: 1px solid var(--blue);
    color: var(--blue);
}

.cta-wrapper .btn.btn-reverse:hover {
    border: 1px solid #fff;
    color: #fff;
}

.header-full {
  width:200vw;
  animation: letter_explode 3s 0s forwards;
}

@keyframes letter_explode {
    0% {letter-spacing:1em;opacity:0;}
    100% {letter-spacing:0em;opacity:1;}
}


@keyframes float {
	0% {
		transform: translatey(0px);
	}
	50% {
		transform: translatey(-20px);
	}
	100% {
		transform: translatey(0px);
	}
}

.main-kv {
	box-sizing: border-box;
	transform: translatey(0px);
	animation: float 6s ease-in-out infinite;
	img { width: 100%; height: auto; }
}


@media (max-width: 1640px) {
    .content h1 {
        font-size: 7rem;
    }

    .content p  {
        font-size: 2rem;
    }

    .cta-wrapper .btn {
        min-width: 20rem;
        font-size: 1.4rem;
    }
}

@media (max-width: 1200px) {
    .hero {
        padding: 4rem;
    }

    /* social */
    .social {
        top: 6rem;
        right: 9rem;
    }

    .social ul {
        display: flex;
    }

    .social ul li {
        margin-left: 1rem;
    }

    .social ul li a {
        width: 3.5rem;
        height: 3.5rem;
    }
}

@media (max-width: 767px) {
    .hero {
        padding: 2rem;
        height: auto;
        min-height: 100vh;
    }

    .content {
        padding-top: 8rem;
    }

    /* grid */
    .row {
        flex-direction: column;
        height: auto;
    }

    .col-6 {
        flex-basis: 100%;
        width: 100%;
    }

    .col-6:last-of-type {
        order: -1;
    }

    /* main text */
    .main-text {
        margin-top: -7rem;
    }

    .content h1 {
        font-size: 5.5rem;
    }

    .content p {
        font-size: 2rem;
    }

    /* social */
    .social {
        top: 4rem;
        right: 2rem;
    }

    /* btn */
    .cta-wrapper .btn {
        width: 100%;
        margin-bottom: 1rem;
    }
    .main-kv {
        margin-bottom: 60px;
    }
}