/* GLOBAL ATTRIBUTES */

body {
  background-image: url("stars.jpg");
  background-color: white;
  font-family: "Times New Roman";
}

.content {
  width: 18cm;
  
  margin: auto;
  padding: 0;
  
  background-color: beige;
  border: 1px solid;
}

h2 {
  margin: 0;
  padding: 0;
}

main {
  margin: 1.5em 20px 1.5em 20px;
}

/* ARTICLE ITEMS */

.article-brief {
  background-color: lightblue;
  margin: 10px 0;
  padding: 10px;
  border: 1px solid;  
  vertical-align: middle;
}

.article-brief p {
  margin: 0;
  padding: 0.25em 0;
}

.article-info {
  width: 60%;
  display: inline-block;
  vertical-align: middle;
}

.article-thumbnail {
  width: 39%;
  display: inline-block;
  vertical-align: middle;
}

.article-thumbnail img {
  float: right;
  width: 175px;
  height: 175px;
}

.tags-text {
  font-size: 0.75em;
  font-style: oblique;
}

/* HEADER ITEMS */

header {
  padding: 10px;
  border-bottom: 1px solid;
}

.header-title {
  margin: 0;
  text-align: center;
  font-size: 2.5em;
}

.header-navbar {
  list-style-type: none;
  
  padding-top: 5px;
  padding-bottom: 10px;
  padding-left: auto;
  padding-right: auto;
  
  margin: auto;
}

.header-navbar li {
  display: inline-block;
  width: calc(100% / 7);
  padding: 3px;
  
  text-align: center;
  vertical-align: middle;
  
  font-size: 1em;
  outline-style: inset;
  background-color: lightgray;
}

/* FOOTER ITEMS */

footer {
  margin: 0;
  padding: 1.5em 10px 1.5em 10px;
  border-top: 1px solid;
  border-bottom: 4px solid;
  background-color: lightgray;
}

.footer-social-media {
  margin: 0 calc(100% - 20% - 33% - 1%) 0 0;
  padding: 0;
  
  width: 20%;
  display: inline-block;
  
  list-style-type: none;
  columns: 3;
  
  vertical-align: middle;
}

.footer-navbar {
  margin: 0;
  padding: 0;
  
  width: 33%;
  display: inline-block;
  
  list-style-type: none;
  columns: 2;
  
  vertical-align: middle;
  text-align: right;
}

/* SLIDESHOW ITEMS */

section {
  position: relative;
  width: 300px;
  height: 300px;
  margin: auto;
}

.image {
  width: 300px;
  height: 300px;
  animation: slide 0.5s linear;
}

@keyframes slide {
  0% {
    opacity: 0;
  }

  100% {
    opacity: 1;
  }
}

#leftArrow {
  all: unset;
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  padding: 0.5rem;
  color: #05d9e8;
  font-size: 2rem;
  cursor: pointer;
}

#rightArrow {
  all: unset;
  position: absolute;
  top: 0;
  bottom: 0;
  right: 0;
  padding: 0.5rem;
  color: #05d9e8;
  font-size: 2rem;
  cursor: pointer;
}

#leftArrow:hover,
#rightArrow:hover {
  background: rgb(0, 0, 0, 0.2);
}