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

html {
  font-family: 'Inter', sans-serif;
}

.app {
  display: -webkit-box;
  display: flex;
  place-items: center;
  min-height: 100vh;
}

main {
  width: 90%;
  max-width: 900px;
  margin: 0 auto;
  background-color: #FFFFFF;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 20px 40px 0 rgba(0, 0, 0, 0.1);
  border: 1px solid rgba(0, 0, 0, 0.1);
}

section {
  display: -webkit-box;
  display: flex;
  -webkit-box-align: center;
          align-items: center;
  height: 80vh;
}

aside,
article {
  height: 100%;
}

aside {
  position: relative;
  background: rgba(76,167,252, 0.08);
  max-width: 35%;
  min-width: 35%;
  border-right: 1px solid rgba(0, 0, 0, 0.1);
}

article {
  overflow: scroll;
}

ul {
  list-style: none;
}

li {
  padding: 24px;
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
  cursor: pointer;
  -webkit-transition: 150ms linear;
  transition: 150ms linear;
  display: -webkit-box;
  display: flex;
  -webkit-box-pack: justify;
          justify-content: space-between;
}

li span {
  background: #4C7BFC;
  border-radius: 100px;
  font-size: 12px;
  min-width: 30px;
  height: 20px;
  display: block;
  padding-top: 4px;
  color: #FFFFFF;
  text-align: center;
}

li:hover {
  background: #4C7BFC;
  color: #FFF;
}

.article {
  display: block;
  width: 100%;
  text-decoration: none;
  color: black;
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
  padding: 16px;
  -webkit-transition: 150ms linear;
  transition: 150ms linear;
}

.article:hover {
  background: -webkit-gradient(linear, right top, left top, color-stop(10%, rgba(76,167,252, 0.1)), to(transparent));
  background: linear-gradient(-90deg, rgba(76,167,252, 0.1) 10%, transparent);
}

.article:visited {
  color: gray;
}

.active {
  background: #4C7BFC;
  color: #FFFFFF;
}

.active span {
  background: #FFF;
  color: #4C7BFC;
}

time {
  display: block;
  font-size: 12px;
  opacity: 0.3;
  margin-top: 2px;
  font-weight: 600;
}

header {
  font-size: 18px;
  line-height: 24px;
  font-weight: 600;
}

p {
  font-size: 13px;
  margin-top: 6px;
  line-height: 17px;
  opacity: 0.6;
}

button {
  position: absolute;
  bottom: 32px;
  left: 0;
  right: 0;
  margin: auto;
  background: #4C7BFC;
  font-family: inherit;
  font-size: 16px;
  border: 0;
  box-shadow: none;
  -webkit-appearance: none;
  padding: 15px 30px;
  border-radius: 100px;
  color: white;
  box-shadow: 0 10px 15px 0 rgba(76,167,252, 0.1);
  cursor: not-allowed;
  outline: 0;
}

.bar {
  display: block;
  width: 100%;
  padding: 10px 15px;
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.bar i {
  font-size: 0;
  width: 12px;
  height: 12px;
  display: inline-block;
  vertical-align: middle;
  background: rgba(0, 0, 0, 0.3);
  border-radius: 100px;
  margin-right: 8px;
  border: 1px solid rgba(0, 0, 0, 0.1);
}