:root {
  --background: var(--color-bg);
  --foreground: var(--color-fg);
  --translucent-bg: var(--color-bg-trans);
  --theme: var(--color-theme);
  --theme-hover: var(--color-theme-hover);
  --bubble-theme: #00CDFF;
  --radius: 1.5em;
}

* {
  box-sizing: border-box;
}

body {
  font-family: 'Segoe UI', Arial, sans-serif;
  margin: 0px;
  padding: 0px;
  display: grid;
  grid-template: auto repeat(2, 1fr) / auto repeat(2, 1fr);

}
header {
  margin: 1em;
  padding: 2em;
  display: flex;
  flex-direction: column;
  align-items: center;
  background: var(--translucent-bg);
  grid-row: 1 / 2;
  grid-column: 1 / 2;
  backdrop-filter: blur(30px);
  border-radius: var(--radius);
  z-index: 9999;
}

.file-label {
  display: inline-block;
  background: var(--theme);
  color: var(--foreground);
  padding: 0.7em 1.5em;
  border-radius: 2em;
  border: 2px solid var(--bubble-theme);
  cursor: pointer;
  font-size: 1rem;
  transition: background 0.2s;
}
.file-label:hover {
  background: var(--theme-hover);
}
.file-label input[type="file"] {
  display: none;
}
main {
  width: 100%;
  height: 100dvh;
  grid-row: 1 / -1;
  grid-column: 1 / -1;
  display: flex;
  justify-content: center;
  align-items: center;
  background: var(--background);
}
a-scene {
  width: 100dvw;
  height: 100dvh;
  background: var(--background);
}
.hidden {
  display: none;
}

@media (max-width: 768px) {
  body {
    grid-template: 1fr 1fr auto / 1fr;
  }

  header {
    grid-row: 3 / -1;
    grid-column: 1 / -1;
    margin: 0.7em;
    padding: 1em;
    flex-direction: row;
    justify-content: space-evenly;
  }

  .file-label {
    padding: 0.6em 1.2em;
    font-size: 0.9rem;
  }

}

@media (max-width: 480px) {
  header {
    margin: 0.25em;
    padding: 0.75em;
  }

  .file-label {
    padding: 0.5em 1em;
    font-size: 0.85rem;
  }
}