/* 
SPACING SYSTEM (px)
2 / 4 / 8 / 12 / 16 / 24 / 32 / 48 / 64 / 80 / 96 / 128

FONT SIZE SYSEM (px) 
10 / 12 / 14 / 16 / 18 / 20 / 24 / 30 / 36 / 44 / 52 / 62 / 74 / 86 / 98
*/

/*
MAIN COLOR: 
GREY COLOR:
*/

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  /* font-size: 10px */

  /* 10px / 16px - 0.625 = 62.5% */
  /* Percentage of user's browser font-size setting  */
  font-size: 62.5%;
  overflow-x: hidden;
}

body {
  font-family: "Lato", sans-serif;
  font-weight: 400;
  line-height: 1.6;
}

.container {
  /* 960px */
  max-width: 90rem;
  padding: 1rem 3.2rem 5rem 0;
  margin: 0 auto;
}

header {
  height: 7rem;

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

.header-box {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.header-text {
  font-size: 16px;
  font-weight: 500;
}

.logo {
  height: 5rem;
  margin-left: 3rem;
}

.grid-2-cols {
  display: grid;
  grid-template-columns: 270px 1fr;
  column-gap: 3rem;
}

.link:link,
.link:visited {
  display: inline-block;
  color: #e67e22;
  text-decoration: none;
}

.link:hover,
.link:active {
  color: #cf711f;
}

/*******************************/
/* MAIN */
/*******************************/
main {
  margin-top: 4rem;
}

/*******************************/
/* VISITED CARDS */
/*******************************/
.card {
  border-right: 2px solid #c5b5b5;
}

.card-icon {
  display: grid;
  justify-content: center;
  padding: 2rem 0 0 0;
}

.icon-photo {
  width: 20rem;
  height: 20rem;
  border-radius: 100%;
  /*padding: 2rem;*/
}

.card-box-author {
  font-size: 1.8rem;
  font-weight: 500;
  line-height: 1.5;
  letter-spacing: 1.2px;
  padding: 3rem 0 3rem 0;
  text-align: center;
}

.card-box-job {
  font-size: 1.2rem;
  font-weight: 500;
  line-height: 1.5;
  letter-spacing: 1.2px;
  padding: 0 2rem 3rem 2rem;
  color: rgb(133, 133, 241);
}

.card-details {
  font-size: 1.4rem;
  line-height: 1.5;
  list-style-type: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: 1rem;
}

.card-details li {
  color: #868e96;
}

.card-details-link:link,
.card-details-link:visited {
  text-decoration: none;
  font-size: 1.6rem;
  color: #868e96;
}

.card-details-link:hover,
.card-details-link:active {
  color: #868e96;
}

/*******************************/
.journal {
  color: rgb(133, 133, 241);
}

.abstract-details {
  color: rgb(133, 133, 241);
  margin: 2rem 0;
}

h2 {
  margin: 3rem 0;
}

h3 {
  margin: 3rem 0;
}

.testimonial-box {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  font-size: 1.6rem;
}

.testimonial-text {
  font-style: italic;
  font-size: 2.4rem;
  line-height: 1.4;
  text-align: center;
}

article {
  text-align: justify;
}

.more {
  text-align: right;
  padding: 2rem;
}

hr {
  margin: 2rem 0;
}