styles.css

:root {
  --elebg: rgba(12, 12, 12, 0.85);
  --elefg: rgb(242, 242, 242);
  --padsm: 8px;
  --padmd: 16px;
  --padlg: 32px;
  --padxl: 64px;
  --bcol: rgba(242, 242, 242, 0.45);
  --brad: 8px;
  --bactive: rgb(175, 100, 238);
  --bgactive: rgb(175, 100, 238, 0.35);
  --bgfilter: blur(4px);
  --marlist: 8px;
}

.ha-toggle__switch,
.ha-select,
.ha-btn,
.ha-text,
.ha-join-public,
.ha-loading-overlay label {
  font-family: sans-serif;
}

.ha-toggle {
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: center;
}

.ha-toggle__switch {
  margin: 0;
  padding: var(--padsm) var(--padmd);
  border: solid 2px var(--bcol);
  border-radius: var(--brad);
  color: var(--elefg);
  background-color: var(--elebg);
  backdrop-filter: var(--bgfilter);
  cursor: pointer;
  outline: none;
  user-select: none;
}

.ha-toggle__switch:first-of-type {
  border-right: 0;
  border-top-right-radius: 0;
  border-bottom-right-radius: 0;
}

.ha-toggle__switch:last-of-type {
  border-left: 0;
  border-top-left-radius: 0;
  border-bottom-left-radius: 0;
}

.ha-toggle__switch:first-of-type.on {
  border-right: solid 2px var(--bactive);
}

.ha-toggle__switch:last-of-type.on {
  border-left: solid 2px var(--bactive);
}

.ha-toggle__switch.on {
  border-color: var(--bactive);
  background-color: var(--bgactive);
}

.ha-select {
  display: block;
  width: 200px;
  margin: 0;
  padding: var(--padsm);
  border: solid 2px var(--bcol);
  border-radius: var(--brad);
  color: var(--elefg);
  background-color: var(--elebg);
  backdrop-filter: var(--bgfilter);
  cursor: pointer;
  outline: none;
  user-select: none;

  transition: opacity 0.32s;
}

.ha-btn {
  margin: 0;
  padding: var(--padsm) var(--padmd);
  border: solid 2px var(--bactive);
  border-radius: var(--brad);
  font-weight: bold;
  color: var(--elefg);
  background-color: var(--bgactive);
  backdrop-filter: var(--bgfilter);
  cursor: pointer;
  outline: none;
  user-select: none;

  transition: opacity 0.32s;
}

.ha-join-private {
  display: flex;
  flex-direction: row;
}

.ha-select:disabled,
.ha-btn:disabled {
  opacity: 0.5;
}

.ha-text {
  margin: 0;
  padding: var(--padsm);
  border: solid 2px var(--bactive);
  border-radius: var(--brad);
  color: var(--elefg);
  background-color: var(--elebg);
  backdrop-filter: var(--bgfilter);
  outline: none;
}

.ha-text--join {
  flex: 1;
  border-right: 0;
  border-top-right-radius: 0;
  border-bottom-right-radius: 0;
}

.ha-btn--join {
  border-left: 0;
  border-top-left-radius: 0;
  border-bottom-left-radius: 0;
}

.ha-join-public {
  display: flex;
  flex-direction: column;
  margin: 0;
  padding: var(--padsm);
  border: solid 2px var(--bcol);
  border-radius: var(--brad);
  color: var(--elefg);
  background-color: var(--elebg);
  backdrop-filter: var(--bgfilter);
  user-select: none;
}

.ha-join-public__header {
  width: 100%;
  margin-bottom: calc(var(--marlist) * 2);
  padding-bottom: var(--padsm);
  border-bottom: solid 2px var(--bcol);
  text-align: center;
  font-size: 20px;
}

.ha-join-public__list {
  flex: 1;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  overflow-y: scroll;
}

.ha-join-public__list--filled {
  justify-content: flex-start;
}

.ha-join-public__game {
  width: 100%;
  display: flex;
  flex-direction: row;
  align-items: stretch;
  margin-bottom: var(--marlist);
}

.ha-join-public__game label {
  flex: 1;
  display: flex;
  flex-direction: row;
  align-items: center;
  padding: var(--padsm);
  border: solid 2px var(--bactive);
  border-radius: var(--brad);
  border-right: 0;
  border-top-right-radius: 0;
  border-bottom-right-radius: 0;
}

.ha-join-public__game label > span:first-of-type {
  font-size: 18px;
  margin-right: var(--padmd);
}

.ha-join-public__game label > span:not(:first-of-type) {
  flex-grow: 0;
  padding: var(--padsm);
  border-radius: var(--brad);
  color: var(--elefg);
  background-color: var(--elebg);
  font-size: 12px;
  margin-right: var(--padsm);
}

.ha-join-public__game label > span:last-of-type {
  margin-right: 0;
}

.ha-join-public__nogames {
  font-size: 14px;
  color: var(--bcol);
}

.ha-overlay-container {
  width: 100%;
  height: 100%;
  pointer-events: none !important;
}

.ha-loading-overlay {
  z-index: 100;
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background-color: var(--elebg);
  backdrop-filter: blur(2px);

  opacity: 0;
  visibility: hidden;
  transition: opacity 0.32s, visibility 0.32s;
}

.ha-loading-overlay label {
  margin-top: var(--padxl);
  color: var(--elefg);
  font-size: 18px;
}

.ha-loading-overlay.on {
  opacity: 1;
  visibility: visible;
}

.ha-loader {
  color: var(--bactive);
  font-size: 45px;
  text-indent: -9999em;
  overflow: hidden;
  width: 1em;
  height: 1em;
  border-radius: 50%;
  position: relative;
  transform: translateZ(0);
  animation: mltShdSpin 1s infinite ease, round 1s infinite ease;
}

@keyframes mltShdSpin {
  0% {
    box-shadow: 0 -0.83em 0 -0.4em,
    0 -0.83em 0 -0.42em, 0 -0.83em 0 -0.44em,
    0 -0.83em 0 -0.46em, 0 -0.83em 0 -0.477em;
  }
  5%,
  95% {
    box-shadow: 0 -0.83em 0 -0.4em, 
    0 -0.83em 0 -0.42em, 0 -0.83em 0 -0.44em, 
    0 -0.83em 0 -0.46em, 0 -0.83em 0 -0.477em;
  }
  10%,
  59% {
    box-shadow: 0 -0.83em 0 -0.4em, 
    -0.087em -0.825em 0 -0.42em, -0.173em -0.812em 0 -0.44em, 
    -0.256em -0.789em 0 -0.46em, -0.297em -0.775em 0 -0.477em;
  }
  20% {
    box-shadow: 0 -0.83em 0 -0.4em, -0.338em -0.758em 0 -0.42em,
     -0.555em -0.617em 0 -0.44em, -0.671em -0.488em 0 -0.46em, 
     -0.749em -0.34em 0 -0.477em;
  }
  38% {
    box-shadow: 0 -0.83em 0 -0.4em, -0.377em -0.74em 0 -0.42em,
     -0.645em -0.522em 0 -0.44em, -0.775em -0.297em 0 -0.46em, 
     -0.82em -0.09em 0 -0.477em;
  }
  100% {
    box-shadow: 0 -0.83em 0 -0.4em, 0 -0.83em 0 -0.42em, 
    0 -0.83em 0 -0.44em, 0 -0.83em 0 -0.46em, 0 -0.83em 0 -0.477em;
  }
}

@keyframes round {
  0% { transform: rotate(0deg) }
  100% { transform: rotate(360deg) }
}