body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-repeat: no-repeat;
  background-size: cover;
  background-position: center;
  background-image: var(--background-image);
  z-index: -1;
  transition: all 0.3s;
}
h4 {
  margin-top: 0;
  user-select: none;
  text-align: center;
}
main {
  min-height: calc(100vh - 3rem - 4rem);
  padding: 1rem;
  width: 100%;
  margin-left: auto;
  margin-right: auto;
  max-width: 1200px;
}
#index-show {
  position: relative;
  height: 100vh;
  width: 100%;
  overflow: hidden;
  text-align: center;
}
#sway {
  text-align: center;
  color: var(--text-color);
  margin-top: 45vh;
  margin-left: auto;
  margin-right: auto;
  width: fit-content;
  height: fit-content;
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  border-radius: 1rem;
  padding: 1em;
}
#sway span {
  font-weight: 550;
  font-size: 4rem;
  user-select: none;
}
#sway span:nth-child(3) {
  font-weight: 400;
  font-size: 1rem;
}
#down-arrow {
  display: block;
  width: 2rem;
  height: 2rem;
  position: absolute;
  bottom: 3rem;
  left: calc(50vw - 1rem);
  cursor: pointer;
  background-image: url('/img/downarrow.png');
  background-position: center;
  background-size: contain;
  -webkit-tap-highlight-color: transparent;
}
.card {
  color: var(--text-color);
  background-color: var(--background-color) !important;
  position: relative;
  z-index: 2;
  margin: 1rem;
  padding: 1.25rem;
  border-radius: 10px;
  box-shadow: 0 5px 8px rgba(0, 0, 0, 0.2);
}
#gitalk-container {
  box-sizing: border-box;
  width: 75%;
  padding-left: 1rem;
  padding-right: 1rem;
}
#articles {
  display: inline-flex;
  width: 75%;
  box-sizing: border-box;
  flex-direction: column;
}
.article {
  font-weight: 550;
  font-size: 1.25rem;
}
.article .excerpt {
  font-size: 0.9rem;
}
.article .excerpt .more {
  text-align: center;
}
#links {
  display: flex;
  height: auto;
  flex-direction: column;
  align-content: flex-start;
  align-items: center;
}
#links a {
  margin-top: 3px;
  margin-bottom: 3px;
}
#right-part {
  box-sizing: border-box;
  position: sticky;
  top: 3em;
  width: 25%;
  float: right;
}
#hitokotoRef {
  text-align: right;
  font-weight: 400;
}
#hitokotoRef:empty {
  visibility: hidden;
}
#hitokotoRef::before {
  content: '——';
}
.refresh {
  display: inline-block;
  height: 1.5em;
  width: 1.5em;
  background-size: contain;
  vertical-align: bottom;
  cursor: pointer;
  background-image: var(--refresh-image);
}
.popup {
  z-index: -2;
  position: fixed;
  width: 100%;
  height: 100%;
  opacity: 0;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  text-align: center;
}
.popup .card {
  position: relative;
  top: calc(50% - 10em);
  left: auto;
  right: auto;
  width: 20em;
  height: 20em;
  margin-left: auto;
  margin-right: auto;
}
button,
input {
  background-color: var(--auxbg-color);
  color: var(--auxiliary-color);
  border: none;
  display: block;
  margin: 10px;
  padding: 5px;
  margin-left: auto;
  margin-right: auto;
}
@keyframes cutin {
  from {
    opacity: 0;
    transform: translateY(-80px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
@keyframes cutout {
  from {
    opacity: 1;
    transform: translateY(0px);
  }
  to {
    opacity: 0;
    transform: translateY(-80px);
  }
}
@media (max-device-width: 450px) {
  .card {
    padding: 1rem;
    margin: 0.5rem;
  }
  #right-part {
    display: none;
    position: relative;
    float: none;
    width: 100%;
    margin-left: auto;
    margin-right: auto;
    margin-top: 3rem;
  }
  #gitalk-container {
    width: 100%;
    padding-left: 0.5rem;
    padding-right: 0.5rem;
  }
  #articles {
    width: 100%;
    margin-top: 40px;
    padding-top: 0;
  }
  #sway > span {
    font-size: 2em;
  }
}