:root {
  --fg: #ffe08a;
  --mid: #b8902e;
  --dim: rgba(255, 224, 138, 0.18);
  --bg: #000;
  --pixel: 'VT323', monospace;
  --mono: 'IBM Plex Mono', ui-monospace, monospace;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 15px/1.6 var(--mono);
  overflow: hidden;
}

#scene {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  display: block;
}

/* Loading screen */
#loader {
  position: fixed;
  inset: 0;
  z-index: 20;
  display: grid;
  place-content: center;
  gap: 14px;
  background: #000;
  font-family: var(--pixel);
  font-size: 32px;
  letter-spacing: 0.08em;
  transition: opacity 0.8s ease 0.4s, visibility 0s 1.2s;
}
#loader p { margin: 0; text-align: center; }
#loader p.error { color: #ff7a5c; max-width: 80vw; font-size: 26px; }
#loader .track { width: 240px; height: 6px; border: 1px solid var(--mid); }
#loader-bar { height: 100%; width: 0; background: var(--fg); transition: width 0.2s; }
#loader.done { opacity: 0; visibility: hidden; }
.dots::after { content: ''; animation: dots 1.2s steps(4) infinite; }
@keyframes dots { 0% { content: ''; } 25% { content: '.'; } 50% { content: '..'; } 75% { content: '...'; } }

/* Header */
.top {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 28px;
  font-family: var(--pixel);
  font-size: 22px;
  background: linear-gradient(#000c, #0000);
}
.top .logo { font-size: 30px; letter-spacing: 0.05em; }
.top .node { color: var(--mid); }

/* Real text field: invisible, the text shows on the 3D monitor */
#gate { position: fixed; left: 0; bottom: 0; width: 1px; height: 1px; overflow: hidden; opacity: 0; }
#gate input { font-size: 16px; width: 1px; height: 1px; border: 0; padding: 0; }
body.ready #scene { cursor: text; }

.credit {
  position: fixed;
  left: 0; right: 0; bottom: 12px;
  z-index: 5;
  text-align: center;
  font-size: 11px;
  color: var(--mid);
  opacity: 0.6;
}

.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

@media (max-width: 560px) {
  .top { padding: 14px 16px; }
  .top .logo { font-size: 26px; }
  .top .node { font-size: 18px; }
}

/* /mini/: X player card (480 x 560) */
body.mini .top { padding: 10px 14px; font-size: 16px; }
body.mini .top .logo { font-size: 22px; }
body.mini .top .node { font-size: 15px; }
.full {
  position: fixed;
  left: 0; right: 0; bottom: 10px;
  z-index: 10;
  text-align: center;
  font-family: var(--pixel);
  font-size: 18px;
  color: var(--mid);
  text-decoration: none;
}
.full:hover { color: var(--fg); }

@media (prefers-reduced-motion: reduce) {
  #loader { transition: none; }
}