:root {
  /* --background: #0a0a0f;
  --darker-square: rgb(201, 201, 201);
  --lighter-square: rgb(255, 255, 255); */
  --background: #000706;
  --darker-blue: #7db5b6;
  --lighter-blue: #e0eff2;
}

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

html, body {
  background: var(--background);
  min-height: 93vh /* 100% - 7% do rodapé */
}

body {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

body .container {
  width: fit-content;
  padding: 30px 60px;

  margin: auto;

  border: 1px solid #069;
  border-radius: 10px;
  
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
}

#username {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: row;
}

#header {
  user-select: none;
  color: var(--lighter-blue);

  margin-bottom: 20px;

  font-family: 'Trebuchet MS', Arial, sans-serif;
  font-size: 50px;
  text-align: center;
}

#create-room {
  cursor: pointer;

  width: 100%;
  height: 80px;
  
  font-size: 22px;
  font-weight: bold;
  text-align: center;

  margin-left: 5px;
  border-radius: 5px;

  background: #069;
  color: #FFF;

  border: none;
  outline: none;
}

#create-room:hover {
  background: #0e6b9a;
  border: 1px solid #ddd;
}

#how-works-open {
  cursor: pointer;

  position: absolute;
  right: 15px;
  bottom: 72px;

  width: clamp(180px, 20vw, 20vw);
  height: 70px;
  
  font-size: 18px;
  font-weight: bold;
  text-align: center;

  border-radius: 5px;

  background: #069;
  color: #FFF;

  border: none;
  outline: none;
}

#how-works-open:hover {
  background: #0e6b9a;
  border: 1px solid #ddd;
}

#how-works-open:active {
  background: #1a86bc;
  border: 1px solid rgb(228, 228, 228);
}

footer {
  position: absolute !important;
  bottom: 0 !important;

  text-align: center;

  display: flex;
  align-items: center;
  justify-content: center;
  
  width: 100%;
  height: clamp(57px, 7vh, 7vh);

  background: white;
  color: var(--background);

  font-family: Arial, Helvetica, sans-serif;
  font-size: 18px;
}

footer span a {
  color: var(--background);
}

/* Efeito Glow */

.glow-on-hover {
  width: 220px;
  height: 50px;

  border: none;
  border-radius: 10px;
  outline: none;
  color: #fff;
  background: #111;
  
  cursor: pointer;
  position: relative;
  z-index: 0;
}

.glow-on-hover:before {
  content: '';
  background: linear-gradient(45deg, #ff0000, #ff7300, #fffb00, #48ff00, #00ffd5, #002bff, #7a00ff, #ff00c8, #ff0000);
  background-size: 400%;

  width: calc(100% + 4px);
  height: calc(100% + 4px);

  position: absolute;
  top: -2px; left:-2px;
  
  z-index: -1;
  filter: blur(15px);

  animation: glowing 20s linear infinite;
  opacity: 0;
  transition: opacity .3s ease-in-out;
  border-radius: 10px;
}

.glow-on-hover:active:after {
  background: #1a86bc;
  border: 1px solid rgb(228, 228, 228);
}

.glow-on-hover:hover:before {
  opacity: 1;
}

.glow-on-hover:after {
  content: '';
  
  width: 100%;
  height: 100%;
  z-index: -1;
  
  position: absolute;
  left: 0; top: 0;

  background: #069;
  border-radius: 10px;
}

@keyframes glowing {
  0% { background-position: 0 0; }
  50% { background-position: 400% 0; }
  100% { background-position: 0 0; }
}