html { overflow-y: auto; height: 100%; }

body { background-color: #fff9d9; }

body, button, input, .button {
  font-family: 'acumin-pro-semi-condensed', Arial, sans-serif;
  font-weight: 500;
  font-size: 1.3rem;
}

.books > .columns,
.current-book-description-holder.opened
{ height: 100%; }


/* Intro sections styles */
.intro {
  display: flex;
  flex-direction: column;
  padding: 1.5rem 3rem 2em 4rem;
  color: #0c052d;
  letter-spacing: .025em;
}
.brand > img { max-height: 2rem; }
.intro-description { margin-top: 1.5rem; }
.intro-footer {
  font-style: italic;
  font-weight: 300;
  font-size: .9em;
  margin-top: 2rem;
}

.intro .links {
  margin: 1rem 0;
  flex: 1;
}
.intro .links > .link { margin-top: 1.5rem; }
.intro .links a, .intro-footer a {
  color: inherit;
  border-bottom: 1px solid #948f8a;
}

.collapsible { flex: 1; }
.collapsible > .collapsible-trigger {
  display: none;
  cursor: pointer;
  margin: 1.5em 0;
}
.collapsible > .content {
  display: flex;
  flex-direction: column;
  height: 100%;
}


/* Books and related styles */
.books > .columns { justify-content: flex-end; }
.books .column { max-width: 150px; }

.book {
  writing-mode: vertical-rl;

  display: flex;
  align-items: center;
  justify-content: space-between;

  width: 100%;
  min-height: 650px;
  height: 100%;

  padding-top: 1rem;
  padding-bottom: 1rem;

  color: #000;
  font-size: 1.8rem;
  letter-spacing: .1rem;
  white-space: nowrap;

  cursor: pointer;
}
.book .book-title {
  max-height: 80%;
  overflow: hidden;
  text-overflow: ellipsis;
}
.book-logo { max-width: 1.4em; }

.book-details {
  display: flex;
  flex-direction: column;
  color: #000;
  letter-spacing: .04rem;
  padding: 1.5rem 2.5rem;
  min-height: 100vh;
  height: 100%;
}

.book + .book-details { display: none; }
.book .short-name { display: none; }

.book-header {
  display: flex;
  justify-content: space-between;

  font-size: 2.5rem;
  line-height: 1.1;
  letter-spacing: .1rem;

  margin-bottom: 1.5rem;
}

.book-close {
  width: 2.5rem;
  height: 2.5rem;
  display: inline-flex;
  justify-content: center;
  align-items: center;
  border-radius: 50%;
  border: 2px solid #000;
  font-size: 1.5rem;
  font-weight: normal;
  cursor: pointer;
  margin-right: -1rem;
}
.book-close.light {
  color: #fff;
  border-color: #fff;
}

.book-description { color: #0c052d; }
.book-description > p { margin-top: 1rem; }
.book-description strong { color: inherit; }
.book-description > img { margin: 1.5rem 0; }
.book-description > img:last-child { margin-bottom: 0; }
.book-description a {
  color: inherit;
  text-decoration: underline;
}

.book-footer { margin-top: 1.5em; }


.btn-buy {
  display: inline-block;
  width: 100%;
  padding: .5rem 1rem;
}
.btn-buy:not(:first-child) { margin-top: .6rem; }
.btn-buy:hover { color: inherit; }
.btn-buy.text-white:hover { color: #fff; }
.btn-buy.text-black:hover { color: #000; }


/* Colors */
.bg-yellow { background-color: #fff000; }
.bg-purple { background-color: #6f2d80; }
.bg-orange { background-color: #e66700; }
.bg-skyblue { background-color: #00aeef; }
.bg-blue { background-color: #40c7d9; }
.bg-pink { background-color: #e614a3; }
.bg-green { background-color: #3ac743; }
.bg-darkblue { background-color: #4711ed; }
.bg-darkerblue { background-color: #0c052d; }
.bg-red { background-color: #e41f26; }


/* Utilities */
.text-heavy { font-weight: 700; }
.text-heavier { font-weight: 800; }
.text-light {
  font-weight: 300;
  font-style: italic;
}
.text-black { color: #000; }
.text-white { color: #fff; }
.text-underline { text-decoration: underline; }

.shown-mobile { display: none; }


/* Media queries */

@media (max-width: 992px) {
  /* Show 6 books on bigger tablet-like devices */
  .books > .columns > .column:nth-child(1n + 7) { display: none; }
  
  .hidden-big-tablet { display: none; }
}

@media (max-width: 768px) {
  .napkin-container > .columns {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
  }
  .napkin-container > .columns > .column { flex: 0; }
  .napkin-container > .columns > .column:last-child { flex: 1; }

  .intro { padding: 1rem 2rem; }

  .collapsible > .content { display: none; }
  .collapsible > .collapsible-trigger { display: block; }
  .collapsible.opened > .content {
    display: block;
    height: auto;
  }


  .books {
    display: flex;
    flex-direction: inherit;
  }
  .books-dynamic-height { min-height: 100px; }
  .books > .columns { flex: 1; }
  .book {
    min-height: 0;
    height: auto;
    white-space: nowrap;
  }
  .book .book-title {
    max-height: 100%;
    text-overflow: initial;
  }
  .book-logo { display: none; }
  .book .text-light { display: none; } /* Hides "on a Napkin" */
  
  /* Show 6 books on tablets & phones */
  .books > .columns > .column:nth-child(1n + 7) { display: none; }

  .book-details { height: auto; }
  
  /* Removing this for now as it looks better without all the empty space */
  /* .book-description { flex: 1; } */ 

  .current-book-description-holder.opened {
    height: auto;
    position: absolute;
    top: 4rem;
  }
  
  /* Utilites */
  .hidden-mobile { display: none; }
  .shown-mobile { display: initial; }
}

@media(max-width: 480px) {
  /* Show 4 books on small & medium phones */
  .books > .columns > .column:nth-child(1n + 5) { display: none; }
}