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

body {
  background-color: rgba(29, 31, 32, 1);
  background-image: url("https://res.cloudinary.com/starborn/image/upload/q_auto/v1729944433/wwo/freestocks-kVv8AvoKJ7g-unsplash_efarjk.jpg");
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
  color: rgba(229, 229, 229, 1);
  font-family: "Grenze Gotisch", serif;
  font-size: 1rem;
  line-height: 1.25;
  margin: 0;
  padding: 0;
}

#wrapper {
  margin: 0 auto;
  max-width: 80rem;
  width: 100%;
}

.open-book {
  background-color: rgba(214, 205, 198, 1);
  box-shadow: rgba(0, 0, 0, 0.5) 0 1rem 3rem;
  color: rgba(0, 0, 0, 1);
  padding: 2rem;
  width: 100%;
}

.open-book * {
  position: relative;
}

.open-book header {
  padding-bottom: 1rem;
}

.open-book footer {
  padding-top: 2rem;
}

.open-book header *,
.open-book footer * {
  font-family: "Grenze Gotisch", serif;
  font-size: 0.8rem;
  font-weight: 400;
  letter-spacing: 0.125em;
  line-height: 1.25;
  margin: 0;
}

.open-book .chapter-title {
  font-family: "Grenze Gotisch", serif;
  font-size: 2rem;
  font-weight: 400;
  letter-spacing: 0.125em;
  line-height: 1.25;
  margin: 1rem 0;
  padding: 0;
  position: relative;
  text-align: center;
}

.open-book article {
  line-height: 1.5;
}

.open-book article *:not(.chapter-title):not(hr):not(dl) {
  margin: 0 auto;
  max-width: 80%;
}

.open-book article p {
  text-indent: 2rem;
}

.open-book .chapter-title + p {
  text-indent: 0;
}

.open-book .chapter-title + p:first-letter {
  float: left;
  font-family: "Grenze Gotisch", serif;
  font-size: 2rem;
  font-weight: 400;
  line-height: 0.65;
  padding: 0.15rem 0.05rem 0 0;
}

.open-book a {
  border-bottom: 1px solid rgba(0, 0, 0, 0.2);
  color: inherit;
  text-decoration: none;
}

.open-book a:hover {
  border-color: rgba(0, 0, 0, 0.8);
}

.open-book header,
.open-book footer {
  text-align: center;
}

.page-number {
  display: none;
}

@media (min-width: 768px) {
  body {
    background-color: rgba(29, 31, 32, 1);
    background-image: url("https://res.cloudinary.com/starborn/image/upload/q_auto/v1729944433/wwo/freestocks-kVv8AvoKJ7g-unsplash_efarjk.jpg");
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
    display: flex;
    flex-direction: column;
    line-height: 1.25;
    min-height: 100vh;
    overflow: hidden;
    position: relative;
  }

  #wrapper {
    align-items: center;
    display: flex;
    flex: 1;
    justify-content: center;
  }

  .open-book {
    margin: 1rem;
    position: relative;
  }

  .open-book header,
  .open-book footer div {
    display: flex;
    justify-content: space-between;
    text-align: left;
  }

  .page-number {
    display: block;
  }

  .open-book::before {
    background-color: rgba(44, 30, 37, 1);
    border-radius: 0.25rem;
    bottom: -1rem;
    content: "";
    left: -1rem;
    position: absolute;
    right: -1rem;
    top: -1rem;
    z-index: -1;
    box-shadow: 0 25px 50px -12px rgb(0 0 0 / 1);
  }

  .open-book::after {
    background: linear-gradient(
      to right,
      transparent 0%,
      rgba(0, 0, 0, 0.2) 46%,
      rgba(0, 0, 0, 0.5) 49%,
      rgba(0, 0, 0, 0.6) 50%,
      rgba(0, 0, 0, 0.5) 51%,
      rgba(0, 0, 0, 0.2) 52%,
      transparent 100%
    );
    bottom: -1rem;
    content: "";
    left: 50%;
    position: absolute;
    top: -1rem;
    transform: translate(-50%, 0);
    width: 4rem;
    z-index: 1;
  }

  .open-book > * {
    column-count: 2;
    column-gap: 6rem;
    position: relative;
    z-index: 1;
  }

  .open-book header::before,
  .open-book header::after,
  .open-book footer::before,
  .open-book footer::after {
    background-color: rgba(214, 205, 198, 1);
    border-radius: 25%;
    content: "";
    height: 2rem;
    position: absolute;
    z-index: -1;
    width: calc(50% + 2rem);
  }

  .open-book header::before,
  .open-book footer::before,
  .open-book footer::after {
    border-top-left-radius: 0;
  }

  .open-book header::after,
  .open-book footer::before,
  .open-book footer::after {
    border-top-right-radius: 0;
  }

  .open-book header::before,
  .open-book header::after,
  .open-book footer::after {
    border-bottom-right-radius: 0;
  }

  .open-book header::before,
  .open-book header::after,
  .open-book footer::before {
    border-bottom-left-radius: 0;
  }

  .open-book header::before,
  .open-book header::after {
    top: -2.65rem;
  }

  .open-book header::before,
  .open-book footer::before {
    right: 50%;
  }

  .open-book header::before {
    transform: rotate(-2deg);
  }

  .open-book header::after,
  .open-book footer::after {
    left: 50%;
  }

  .open-book header::after {
    transform: rotate(2deg);
  }

  .open-book footer::before,
  .open-book footer::after {
    bottom: -2.65rem;
  }

  .open-book footer::before {
    transform: rotate(2deg);
  }

  .open-book footer::after {
    transform: rotate(-2deg);
  }
}