/*================================================
    navigation
=================================================*/

header {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  display: flex;
  flex-direction: column;
  width: 196px;
  background: #2a2433;
  padding: 16px;
  z-index: 999;
}

.logo_box dl {
  position: relative;
  display: flex;
  flex-direction: row;
  flex-wrap: nowrap;
  align-items: center;
  justify-content: space-between;
}

.logo_box dd button,
.language_box li span button {
  background: transparent;
  padding: 0;
  line-height: 100%;
}

.language_box {
  position: absolute;
  top: 60px;
  left: 6px;
  right: 6px;
  background: #fff;
  border-radius: 8px;
  padding: 8px;
  display: none;
}

.language_box li span {
  padding: 1em;
  display: flex;
  flex-direction: row;
  flex-wrap: nowrap;
  align-items: center;
  justify-content: space-between;
}

.language_box li ul li button {
  width: 100%;
  text-align: left;
  height: 48px;
  color: #7d7d87;
  padding: 0 12px 0 36px;
}

.language_on {
  background: #181421;
  color: #fff !important;
}

.user {
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: flex-start;
  padding: 32px 0;
  border-bottom: 1px solid #473e55;
}

.user li:first-of-type {
  margin-right: 1em;
}

.user li dl dt {
  display: block;
  color: #b1b1b7;
  padding: 0 0 8px 0;
}

.user li dl dd a {
  display: block;
  color: #fff;
  font-size: 16px;
}

nav {
  height: 100%;
  overflow-y: auto;
}

nav .nav_title {
  display: block;
  font-size: 12px;
  color: #7d7d87;
  margin: 3em 0 1em 0;
}

nav ul li {
  display: block;
  color: #7d7d87;
}

nav ul li a {
  display: flex;
  align-items: center;
}

nav ul li a span {
  font-size: 14px;
  line-height: 48px;
  color: #7d7d87;
  margin-left: 0.5em;
}

.nav_on span {
  color: #fff;
}

.bottom-menu {
  margin-top: auto;
  padding: 16px 0;
  border-top: 1px solid #473e55;
}

.bottom-menu li a {
  display: flex;
  align-items: center;
}

.bottom-menu li a span {
  font-size: 14px;
  line-height: 48px;
  color: #7d7d87;
  margin-left: 0.5em;
}