/* Global */
:root {
  /* Color */
  --color-white: #ffffff;
  --color-light-white: #eeeeee;
  --color-dark-white: #bdbdbd;
  --color-pink: #fe918d;
  --color-dark-pink: #ff6863;
  --color-black: #4d4d4d;
  --color-dark-grey: #4d4d4d;
  --color-grey: #616161;
  --color-light-grey: #7c7979;
  --color-blue: #73aace;
  --color-yellow: #fff7d1;
  --color-orange: #feb546;
  --color-black: #000000;

  /* Font size */
  --font-large: 40px;
  --font-medium: 28px;
  --font-regular: 18px;
  --font-small: 16px;
  --font-micro: 14px;
  --font-mini: 10px;

  /* Font weight */
  --weight-bold: 700;
  --weight-semi-bold: 600;
  --weight-regular: 400;

  /* Size */
  --size-border-radius: 4px;

  /* Annimation */
  --animation-duration: 300ms;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  display: flex;
  justify-content: center;
  font-family: 'Open Sans', sans-serif;
}

a {
  text-decoration: none;
  color: inherit;
}

ul {
  padding-left: 0;
}

li {
  list-style: none;
}

button {
  background-color: transparent;
  cursor: pointer;
  border: none;
  outline: none;
}

#main {
  margin-top: 2rem;;
  width: 1200px;
  display: flex;
}

#left-section {
  padding: 1rem;
  padding-left: 2rem;
  padding-right: 1rem;
  flex: 0 0 500px;
}

.author-name {
  font-size: var(--font-large);
  margin: 0;
  padding-left: 1rem;
}

#metainfo,
#skillset {
  border-bottom: 1px solid var(--color-dark-white);
  padding-bottom: 2.5rem;
  /* padding-left: 1rem; */
}

#metainfo ul li {
  margin-bottom: 0.5rem;
}
#metainfo ul li i {
  margin-right: 0.5rem;
}

#skillset p {
  font-weight: var(--weight-bold);
  font-size: var(--font-regular);
}
#skillset p span {
  color: var(--color-light-grey);
  font-weight: var(--weight-semi-bold);
  font-size: var(--font-small);
}

#skillset ul {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-start;
}

#skillset .skill {
  border: 1px solid var(--color-light-grey);
  border-radius: var(--size-border-radius);
  padding: 0.4rem;
  margin-right: 1rem;
  margin-bottom: 0.5rem;
  font-weight: var(--weight-semi-bold);
  font-size: var(--font-small);
}

#skillset .skill.skill-main {
  font-size: var(--font-micro);
  color: var(--color-white);
  background-color: var(--color-dark-grey);
  border: var(--color-dark-grey);
}

#skillset .skill.skill-sub {
  font-size: var(--font-micro);
  color: var(--color-white);
  background-color: var(--color-light-grey);
  border: var(--color-light-grey);
}

#right-section {
  padding: 1rem;
  padding-right: 2rem;
  padding-left: 0;
  flex: 0 0 700px;
}

.classification {
  border: 1px solid var(--color-dark-white);
  padding: 1.5rem;
  /* padding-bottom: 0; */
  margin-bottom: 1.5rem;
  border-radius: var(--size-border-radius);
  display: flex;
}

.classification-title {
  flex: 0 0 130px;
  margin: 0;
}
.classification-title span {
  border-left: 5px solid var(--color-dark-grey);
  padding: 5px 0 5px 10px;
}
.classification-content {
  display: flex;
  margin: 0;
  flex-direction: column;
  width: 100%;
  margin-left: 1rem;
}

.classification-content .content-item:not(:first-child) {
  padding-top: 1.5rem;
}
.classification-content .content-item:not(:last-child) {
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--color-dark-white);
}
.content-item-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}
.content-item .content-item-header .title {
  font-size: var(--font-regular);
  font-weight: var(--weight-bold);
  margin: 0;
  max-width: 70%;
}
.content-item .content-item-header .metainfo {
  font-size: var(--font-small);
  font-weight: var(--weight-semi-bold);
  color: var(--color-dark-grey);
}
.content-item .content-item-body {
  /* border: 1px solid red; */
  margin-top: 1rem;
  font-size: var(--font-small);
  padding-left: 1.2rem;
}
.content-item .content-item-body li {
  margin: 0;
  margin-bottom: 4px !important;
  list-style: disc;
}
.content-item .content-item-tags {
  margin-top: 1rem;
}
.content-item .content-item-tags li {
  display: inline-block;
  font-size: var(--font-micro);
  padding: 0.4rem;
  background-color: var(--color-dark-grey);
  border: var(--color-dark-grey);
  margin-right: 0.5rem;
  margin-bottom: 0.5rem;
  border-radius: var(--size-border-radius);
  color: var(--color-white);
}
.content-item .content-item-links {
  margin-top: 1rem;
}
.btn-link {
  font-weight: var(--weight-semi-bold);
  border-radius: var(--size-border-radius);
  border: 1px solid var(--color-dark-grey);
  margin-right: 0.5rem;
  margin-bottom: 0.5rem;
  color: var(--color-dark-grey);
  padding: 0.5rem;
  line-height: 1.2rem;
  display: inline-flex;
  align-items: center;
}
.li-child {
  display: flex;
  color: var(--color-light-grey);
}
.li-child span {
  font-size: 0.9rem;
}
.li-child p {
  font-size: 0.9rem;
  margin: 0;
  padding-left: 0.25rem;
}