@import url("https://fonts.googleapis.com/css?family=Inter:400|Jura:400");

* {
  box-sizing: border-box;
  scroll-behavior: smooth;
}

:root {
  --c: 238, 199, 99;
  --t: 204, 204, 204;
}

body {
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  align-items: center;
  background-color: #000;
  margin: 0;
  font-family: Bahnschrift SemiBold;
  color: rgb(var(--t));
  position: relative;
}

h1,
h2,
h3,
p {
  font-weight: normal;
}

h1 {
  font-size: 5rem;
  margin: 0 0 3rem 0;
  text-align: center;
}

p {
  font-size: 20px;
  line-height: 200%;
  margin-bottom: 3rem;
}

.scroll {
  display: flex;
  flex-direction: column;
  align-items: center;
  font-size: 1.2rem;
  gap: 1rem;
  position: fixed;
  bottom: 3rem;
  right: 3rem;
  cursor: pointer;
  transition: all ease 0.3s;
}

.text {
  text-shadow: 0 0 20px 1px rgb(var(--c), 1);
  color: rgb(var(--c));
  font-family: "Jura";
}

.container {
  display: flex;
  flex-direction: column-reverse;
  align-items: flex-end;
  gap: 0.5rem;
}

.rectangle {
  opacity: 0;
  transition: opacity 0.3s ease, transform 0.3s ease;
  transform: translateY(20px);
  box-shadow: 0 0 200px 5px rgb(var(--c), 1), 0 0 20px 1px rgb(var(--c), 0.3);
}

.rectangle:first-child {
  opacity: 1;
  transform: translateY(0);
  background-color: rgba(var(--c), 1);
}

.scroll:hover .rectangle:not(:first-child) {
  opacity: 1;
  transform: translateY(0);
}

.rectangle:nth-child(1) {
  width: 100px;
  height: 15px;
}
.rectangle:nth-child(2) {
  width: 70px;
  height: 12px;
  transition-delay: 0.05s;
  background-color: rgba(var(--c), 0.9);
}
.rectangle:nth-child(3) {
  width: 50px;
  height: 9px;
  transition-delay: 0.1s;
  background-color: rgba(var(--c), 0.8);
}
.rectangle:nth-child(4) {
  width: 40px;
  height: 7px;
  transition-delay: 0.15s;
  background-color: rgba(var(--c), 0.7);
}
.rectangle:nth-child(5) {
  width: 32px;
  height: 6px;
  transition-delay: 0.2s;
  background-color: rgba(var(--c), 0.6);
}
.rectangle:nth-child(6) {
  width: 28px;
  height: 5px;
  transition-delay: 0.25s;
  background-color: rgba(var(--c), 0.5);
}
.rectangle:nth-child(7) {
  width: 25px;
  height: 4px;
  transition-delay: 0.3s;
  background-color: rgba(var(--c), 0.4);
}
.rectangle:nth-child(8) {
  width: 22px;
  height: 3px;
  transition-delay: 0.35s;
  background-color: rgba(var(--c), 0.3);
}
.scroll:not(:hover) .rectangle:nth-child(2) {
  transition-delay: 0.35s;
}
.scroll:not(:hover) .rectangle:nth-child(3) {
  transition-delay: 0.3s;
}
.scroll:not(:hover) .rectangle:nth-child(4) {
  transition-delay: 0.25s;
}
.scroll:not(:hover) .rectangle:nth-child(5) {
  transition-delay: 0.2s;
}
.scroll:not(:hover) .rectangle:nth-child(6) {
  transition-delay: 0.15s;
}
.scroll:not(:hover) .rectangle:nth-child(7) {
  transition-delay: 0.05s;
}
.scroll:not(:hover) .rectangle:nth-child(8) {
  transition-delay: 0s;
}







/* extra */

main {
  border-style: solid;
  border-color: rgb(var(--t), 0.2);
  border-width: 0 1px 0 1px;
  width: 60%;
  height: auto;
  margin: 0 15rem;
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
}

.line {
  width: 100%;
  height: 1px;
  position: relative;
  background-color: rgb(var(--t), 0.2);
}

.top {
  top: 5rem;
}

.bottom {
  bottom: 5rem;
}

article {
  position: relative;
  margin: 10rem 4rem;
}

a {
  color: rgb(var(--c));
  text-decoration: none;
}

@media screen and (max-width: 850px) {
  main {
    width: 100%;
    margin: 0 5rem;
  }
  
  .ruler {
    left: 0rem !important;
  }
}


.ruler {
  width: 2rem;
  height: 100%;
  position: absolute;
  left: 4rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  
}

.lines {
  width: 1px;
  height: 100%;
  background-color: rgb(var(--c), 0.2);
  display: flex;
  flex-direction: column;
  align-items: center;
  position: absolute;
}

.lines span {
  width: 1rem;
  background-color: rgb(var(--c), 0.4);
  height: 1px;
  position: absolute;
}
.mask {
    position: fixed;
    height: 10%;
    width: 1rem;
    background-color: #000;
    z-index: 500;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    font-size: 1rem;
    color: rgb(var(--c));
  }
  
  .one {
    top: 0;
    border-width: 0 0 1px 0;
    border-color: rgb(var(--c));
    border-style: solid;
    
  }
  .two {
    bottom: 0;
    border-width: 1px 0 0px 0;
    border-color: rgb(var(--c));
    border-style: solid;
  }
  
  .lines span:nth-child(1) {
    top: 4%;
  }
  
  .lines span:nth-child(2) {
    top: 8%;
  }
  
  .lines span:nth-child(3) {
    top: 12%;
  }
  
  .lines span:nth-child(4) {
    top: 16%;
  }
  
  .lines span:nth-child(5) {
    top: 20%;
  }
  
  .lines span:nth-child(6) {
    top: 24%;
  }
  
  .lines span:nth-child(7) {
    top: 28%;
  }
  
  .lines span:nth-child(8) {
    top: 32%;
  }
  
  .lines span:nth-child(9) {
    top: 36%;
  }
  
  .lines span:nth-child(10) {
    top: 40%;
  }
  
  .lines span:nth-child(11) {
    top: 44%;
  }
  
  .lines span:nth-child(12) {
    top: 48%;
  }
  
  .lines span:nth-child(13) {
    top: 52%;
  }
  
  .lines span:nth-child(14) {
    top: 56%;
  }
  
  .lines span:nth-child(15) {
    top: 60%;
  }
  
  .lines span:nth-child(16) {
    top: 64%;
  }
  
  .lines span:nth-child(17) {
    top: 68%;
  }
  
  .lines span:nth-child(18) {
    top: 72%;
  }
  
  .lines span:nth-child(19) {
    top: 76%;
  }
  
  .lines span:nth-child(20) {
    top: 80%;
  }
  
  .lines span:nth-child(21) {
    top: 84%;
  }
  
  .lines span:nth-child(22) {
    top: 88%;
  }
  
  .lines span:nth-child(23) {
    top: 92%;
  }
  
  .lines span:nth-child(24) {
    top: 96%;
  }
  
  .lines span:nth-child(25) {
    top: 100%;
  }

  h2{
    font-size: 31px;
  }
  /* 13 */
  .btn-13 {
    background-color: #89d8d3;
  background-image: linear-gradient(315deg, #89d8d3 0%, #03c8a8 74%);
    border: none;
    z-index: 1;
  }
  .btn-13:after {
    position: absolute;
    content: "";
    width: 100%;
    height: 0;
    bottom: 0;
    left: 0;
    z-index: -1;
    border-radius: 5px;
     background-color: #4dccc6;
  background-image: linear-gradient(315deg, #4dccc6 0%, #96e4df 74%);
    box-shadow:
     -7px -7px 20px 0px #fff9,
     -4px -4px 5px 0px #fff9,
     7px 7px 20px 0px #0002,
     4px 4px 5px 0px #0001;
    transition: all 0.3s ease;
  }
  .btn-13:hover {
    color: #fff;
  }
  .btn-13:hover:after {
    top: 0;
    height: 100%;
  }
  .btn-13:active {
    top: 2px;
  }