body {
  font-family: 'Architects Daughter', sans-serif;
}

#paper-back {
  width: 100%;
  height: 100vh;
  background-color: #243040;
  position: fixed;
  top: 0;
  left: 0;
  font-size: 33px;
}
#paper-back nav {
  padding: 120px 34px;
}
#paper-back nav a {
  display: block;
  margin-bottom: 25px;
  text-decoration: none;
  color: rgba(255, 255, 255, 0.7);
}

#paper-window {
  height: 100vh;
  width: 100vw;
  position: relative;
  overflow-x: hidden;
  overflow-y: scroll;
  z-index: 2;
}
#paper-window.tilt {
  overflow: hidden;
  pointer-events: none;
}
#paper-window.tilt #paper-front {
  -webkit-transform: rotate(10deg) translateZ(0);
          transform: rotate(10deg) translateZ(0);
}

#paper-front {
  pointer-events: auto;
  position: relative;
  z-index: 3;
  background-color: white;
  box-shadow: 0 0 20px rgba(0, 0, 0, 0.7);
  -webkit-transform-origin: center 70%;
      -ms-transform-origin: center 70%;
          transform-origin: center 70%;
  -webkit-transition: all 0.3s ease;
          transition: all 0.3s ease;
}

#container section {
  height: 600px;
  text-align: center;
}
#container section:first-of-type {
  padding-top: 10vh;
}
#container section:first-of-type h1 {
  font-size: 45px;
}
#container section:first-of-type p {
  font-size: 25px;
}
@media (max-width: 600px) {
  #container section:first-of-type {
    padding-top: 15vh;
  }
  #container section:first-of-type h1 {
    font-size: 30px;
  }
  #container section:first-of-type p {
    font-size: 18px;
  }
}
#container section:nth-of-type(2n) {
  background-color: #edf1f5;
}

.hamburger {
  position: fixed;
  z-index: 4;
  top: 30px;
  left: 30px;
  width: 45px;
  height: 34px;
  cursor: pointer;
  -webkit-user-select: none;
     -moz-user-select: none;
      -ms-user-select: none;
          user-select: none;
}
.hamburger span {
  position: relative;
}
.hamburger span, .hamburger span:before, .hamburger span:after {
  display: block;
  width: 45px;
  height: 6px;
  background-color: #243040;
  border-radius: 2px;
}
.hamburger span:before, .hamburger span:after {
  content: '';
  position: absolute;
}
.hamburger span:before {
  bottom: -14px;
}
.hamburger span:after {
  bottom: -28px;
}

.close {
  position: fixed;
  top: 30px;
  left: 30px;
  width: 45px;
  height: 34px;
  cursor: pointer;
}
.close-z-index{
  z-index: 10;
}
.close:before, .close:after {
  content: '';
  position: absolute;
  display: block;
  width: 45px;
  height: 6px;
  top: 50%;
  background-color: white;
  border-radius: 2px;
}
.close:before {
  -webkit-transform: translateY(-50%) rotate(45deg);
      -ms-transform: translateY(-50%) rotate(45deg);
          transform: translateY(-50%) rotate(45deg);
}
.close:after {
  -webkit-transform: translateY(-50%) rotate(-45deg);
      -ms-transform: translateY(-50%) rotate(-45deg);
          transform: translateY(-50%) rotate(-45deg);
}