:root{
  --mcb-height: 78px;
  /* injected by PHP */
  --mcb-bg-url: none;
}

.mcb-bar{
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 99999;

  height: var(--mcb-height);
  padding: 10px 10px calc(10px + env(safe-area-inset-bottom));
  box-sizing: border-box;

  display: flex;
  align-items: flex-end;
  justify-content: center;

  background: var(--mcb-bg-url) no-repeat center/cover;

  border-top: 1px solid rgba(0,0,0,.06);
  box-shadow: 0 -10px 25px rgba(0,0,0,.16);
}

.mcb-inner{
  width: 100%;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
}

.mcb-item{
  flex: 1;
  min-width: 0;

  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-end;

  text-decoration: none !important;
  color: #0d1b2a;
  -webkit-tap-highlight-color: transparent;
}

.mcb-icon{
  width: 36px;
  height: 36px;
  border-radius: 999px;

  background: rgba(255,255,255,.96);
  border: 1px solid rgba(0,0,0,.06);
  box-shadow: 0 6px 18px rgba(0,0,0,.12);

  display: flex;
  align-items: center;
  justify-content: center;

  overflow: hidden;
  margin-bottom: 6px;
}

.mcb-icon img{
  width: 24px;
  height: 24px;
  object-fit: contain;
  display: block;
}

.mcb-label{
  font-size: 11px;
  font-weight: 800;
  line-height: 1.1;

  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 78px;
}

.mcb-item.is-active .mcb-label{ color: #1677ff; }
.mcb-item.is-active .mcb-icon{ border-color: rgba(22,119,255,.35); }

/* Nút #3 to hơn */
.mcb-bar .mcb-item:nth-child(3) .mcb-icon{
  width: 72px;
  height: 72px;
  margin-bottom: 16px;
}
.mcb-bar .mcb-item:nth-child(3) .mcb-icon img{
  width: 48px;
  height: 48px;
}