index.css

@import url('https://fonts.googleapis.com/css2?family=Gaegu&display=swap');
@import url('https://fonts.googleapis.com/css?family=Libre+Franklin:300,600,700&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@500&display=swap');

:root {
    --color-first: #65587f;
    --color-second: #f18867;
    --color-third: #e85f99;
    --color-forth: #50bda1;
    --block-width: 370px;
    --block-height: 400px;
    --border-width: .625rem;
    --border-radius-outer: 8px;
    --border-radius-inner: calc(var(--border-radius-outer) / 2);
    --font-plain: 'IBM Plex Sans', sans-serif;
    --font-special: 'Fredoka One', sans-serif;
    box-sizing: border-box;
    line-height: 1.4;
    font-family: 'Libre Franklin';
  }
  
  *, *:before, *:after {
    box-sizing: inherit;
    scroll-behavior: smooth;
  }
  
  body{
      display: flex;
      flex-direction: column;
   
    text-align: center;
    background-color: #f7f8fc;
    
}

h1{
    font-family: 'Montserrat';
    color: var(--color-second);
}

.right{
  color: var(--color-third);
}

  li{
        list-style: none;
    }


    main{
        margin: 40px auto;
        display: flex;
        justify-content: center;
        align-items: center;
        flex-wrap: wrap;
        flex-shrink: 1;
        /* border: 2px solid green; */
        max-width: 70vw;
    }


img{
    width: 100%;
    object-fit: contain;
    overflow: hidden;
}

.links{
  display: flex;
  margin: 0 auto;
  position: absolute;
  
  bottom: -10px;
  left: 50px;
}


ul > li{
  margin: 10px;
}

ul{
  list-style: none;
  display: flex;
  justify-content: center;
 
}

li > a{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  border: 1px solid hsl(0, 7%, 89%);
  border-radius: 50%;
  height: 40px;
  width: 40px;
  text-decoration: none;
  color:  var(--color-third);
}

a:hover{
  background-color: var(--color-third);
  color: white;
}

.footer{
  margin-top: 10px;
  color: hsl(0, 0%, 59%);
}


/* animation section */

  .rainbow {
    width: 100%;
    height: 100%;
    -webkit-animation: o-rotate-360 linear 8s infinite;
            animation: o-rotate-360 linear 8s infinite;
  }
  .rainbow span {
    display: block;
    width: 100%;
    height: 100%;
    position: relative;
    -webkit-transform: translate(-50%, -50%);
            transform: translate(-50%, -50%);
  }
  .rainbow span:after {
    display: block;
    content: "";
    width: 100%;
    height: 100%;
    position: absolute;
    left: 100%;
  }
  .rainbow span:first-child {
    background: var(--color-first);
  }
  .rainbow span:first-child:after {
    background: var(--color-second);
  }
  .rainbow span:last-child {
    background: var(--color-third);
  }
  .rainbow span:last-child:after {
    background: var(--color-forth);
  }
  
  .c-subscribe-box {
      margin: 2em;
    width: var(--block-width);
    height: var(--block-height);
    
    overflow: hidden;
    position: relative;
    box-shadow: 0 10px 40px -10px rgba(0, 64, 128, 0.2);
    border-radius: var(--border-radius-outer);
  }
  .c-subscribe-box__wrapper {
    width: calc(100% - var(--border-width));
    height: calc(100% - var(--border-width));
    position: absolute;
    top: 50%;
    left: 50%;
    
    -webkit-transform: translate(-50%, -50%);
            transform: translate(-50%, -50%);
    background: #fff;
    padding: 1.2rem 1rem 1.8rem;
    display: -webkit-box;
    display: flex;
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
            flex-direction: column;
    border-radius: var(--border-radius-inner);
  }
  .c-subscribe-box__title {
    font-size: 1.5rem;
  }
  .c-subscribe-box__desc {
    font-size: .735rem;
    margin: .7rem auto 1.8rem;
    max-width: 240px;
  }
  .c-subscribe-box__form {
    margin-top: auto;
  }
  
  .c-form--accent input:hover, .c-form--accent input:active, .c-form--accent input:focus {
    border-color: var(--color-third);
    box-shadow: 0 0 0 3px rgba(232, 94, 152, 0.25);
  }
  .c-form--accent [type=submit] {
    background: var(--color-third);
    border-color: var(--color-third);
    color: #fff;
  }
  
  @-webkit-keyframes o-rotate-360 {
    0% {
      -webkit-transform: rotate(0);
              transform: rotate(0);
    }
    100% {
      -webkit-transform: rotate(360deg);
              transform: rotate(360deg);
    }
  }
  
  @keyframes o-rotate-360 {
    0% {
      -webkit-transform: rotate(0);
              transform: rotate(0);
    }
    100% {
      -webkit-transform: rotate(360deg);
              transform: rotate(360deg);
    }
  }
  [type=submit] {
    margin-bottom: 0;
    font-family: var(--font-special);
    font-weight: normal;
    letter-spacing: .015em;
    font-size: 1.1rem;
  }
  [type=submit]:active {
    -webkit-transform: scale(0.97);
            transform: scale(0.97);
  }
  
  input {
    font-family: inherit;
    color: inherit;
    outline: none;
    font-size: 93%;
    -webkit-transition: all 300ms ease;
    transition: all 300ms ease;
  }
  
  h3 {
    margin: 0;
    letter-spacing: -.015em;
    font-family: var(--font-special);
    font-weight: normal;
    line-height: 1.4;
  }
  
  .u-align-center {
    text-align: center;
  }
/*   
modal part */
  
.modal-container {
	position: fixed;
	background-color: rgba(0, 0, 0, 0.3);
	display: flex;
	align-items: center;
	justify-content: center;
	opacity: 0;
	top: 0;
	left: 0;
	height: 100vh;
	width: 100vw;
	transition: opacity 0.3s ease;
  pointer-events: none;
  z-index: 99;
}

.modal-container.show {
	opacity: 1;
	pointer-events: auto;
}

.modal {
	background-color: #fff;
	border-radius: 5px;
	box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
	padding: 30px 50px;
	text-align: center;
	width: 600px;
	max-width: 100%;
/* 	transform: translateY(-200%); */
/* 	transition: transform 0.3s ease; */
}

.modal-container.show .modal {
/* 	transform: translateY(0); */
}

.modal h1 {
	margin: 0;
}

.modal p {
	font-size: 14px;
	
}

video{
  height: 100%;
  width: 100%;
}

button {
	background-color: #47A386;
	border: 0;
	border-radius: 5px;
	box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
	cursor: pointer;
	color: #fff;
	font-family: inherit;
	font-size: 14px;
	padding: 10px 25px;
}