:root {
  --color-button: #55fc27;
  --color-button-hover: #3cc516;
}

* {
  font-family: system-ui, sans-serif;
}

body {
  margin: 0;
  overflow: hidden;
}

a-scene {
  height: 100vh;
  height: 100dvh;
  width: 100vw;
}

.button-wrapper {
  position: absolute;
  bottom: 1rem;
  z-index: 9;
  left: 0;
  display: flex;
  width: 100%;
  flex-flow: column-reverse nowrap;
  gap: 0.5rem;
  justify-content: center;
  align-items: center;
}

.button-container {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.5rem;
}

button {
  padding-inline: 1rem;
  height: 42px;
  font-size: 16px;
  display: flex;
  align-items: center;
  border: none;
  border-radius: 4px;
  background-color: var(--color-button);
  color: black;
  cursor: pointer;
  transition: background-color 0.3s;
}

button:hover {
  background-color: var(--color-button-hover);
}

.visible {
  display: flex;
  animation: fade-in 500ms ease;
}

.invisible {
  display: none;
}

@keyframes fade-in {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

#prev {
  border-radius: 100rem 0 0 100rem;
  border-right: 0.25rem solid white;
}
#next {
  border-radius: 0 100rem 100rem 0;
  border-left: 0.25rem solid white;
}

#video-controls {
  gap: 0.5rem;
}

.splash-screen {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.85);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 9999;
}

.splash-content {
  text-align: center;
  color: white;
  padding: 2rem;
  border-radius: 8px;
  max-width: 80%;
}

.splash-button {
  margin-top: 1.5rem;
  margin-inline: auto;
  font-weight: 600;
}

.splash-button:hover {
  background-color: #3367d6;
}