html, body {
  width: 100%;
  height: 100%;
  margin: 0;
  overflow: hidden;
  background: #000;
}

body {
  display: grid;
  place-items: center;
  color: #eee;
  font-family: "Noto Sans CJK SC", "Microsoft YaHei", sans-serif;
}

#canvas {
  display: block;
  width: 800px;
  height: 600px;
  outline: 0;
  touch-action: none;
  visibility: hidden;
}

body.game-ready #canvas { visibility: visible; }

#loader {
  position: fixed;
  inset: 0;
  z-index: 10000;
  display: grid;
  place-items: center;
  background: #000;
  color: #eee;
}

#loader[hidden] { display: none; }

.loader-panel {
  width: min(520px, calc(100vw - 40px));
  box-sizing: border-box;
  padding: 30px 32px 24px;
  border: 1px solid #555;
  background: linear-gradient(145deg, #1c2a45, #070a12 72%);
  box-shadow: 0 14px 45px #000a;
}

.loader-brand {
  color: #f3f3f3;
  font: 700 22px/1.2 Georgia, serif;
  letter-spacing: .12em;
}

.loader-brand span {
  display: block;
  margin-top: 4px;
  color: #b8c8e5;
  font: 12px/1.4 Georgia, serif;
  letter-spacing: .24em;
}

#loader-title {
  margin: 30px 0 8px;
  font-size: 17px;
  font-weight: 500;
}

#loader-message, #loader-detail {
  margin: 0 0 12px;
  color: #c3c7d0;
  font-size: 13px;
  line-height: 1.6;
}

#loader-progress {
  display: block;
  width: 100%;
  height: 12px;
  margin: 16px 0 10px;
  accent-color: #87aeea;
}

.loader-row {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 34px;
  color: #aeb8cb;
  font-size: 12px;
}

.loader-row span { flex: 1; }

.loader-row button {
  border: 1px solid #8291aa;
  border-radius: 3px;
  padding: 6px 12px;
  background: #111a2a;
  color: #eee;
  font: inherit;
  cursor: pointer;
}

.loader-row button:hover { background: #263a5b; }

#loader.compact {
  inset: auto 14px 14px auto;
  display: block;
  width: min(400px, calc(100vw - 28px));
  background: transparent;
  pointer-events: none;
}

#loader.compact .loader-panel {
  padding: 10px 12px;
  border-color: #555d;
  background: #080d17ed;
  box-shadow: none;
  pointer-events: auto;
}

#loader.compact .loader-brand,
#loader.compact #loader-detail { display: none; }

#loader.compact #loader-title { display: none; }
#loader.compact #loader-message { margin: 0; }
#loader.compact #loader-progress { height: 7px; margin: 5px 0; }
#loader.compact .loader-row { min-height: 26px; }

#loader.compact.idle {
  inset: auto 14px 14px auto;
  width: auto;
  pointer-events: auto;
}

#loader.compact.idle .loader-panel {
  padding: 0;
  border: 0;
  background: transparent;
}

#loader.compact.idle .loader-brand,
#loader.compact.idle #loader-title,
#loader.compact.idle #loader-message,
#loader.compact.idle #loader-detail,
#loader.compact.idle #loader-progress,
#loader.compact.idle #loader-bytes,
#loader.compact.idle #loader-pause,
#loader.compact.idle #loader-retry { display: none; }

#loader.compact.idle .loader-row { min-height: 0; }
#loader.compact.idle #loader-background { opacity: .55; border-radius: 999px; }
#loader.compact.idle #loader-background:hover,
#loader.compact.idle #loader-background:focus-visible { opacity: 1; }

.exit-blocked {
  display: grid;
  place-items: center;
  min-height: 100%;
  padding: 24px;
  box-sizing: border-box;
  background: #000;
  color: #ddd;
  text-align: center;
  font: 16px/1.7 "Noto Sans CJK SC", "Microsoft YaHei", sans-serif;
}

.movie-subtitle {
  position: fixed;
  z-index: 10002;
  left: 50%;
  transform: translateX(-50%);
  max-width: 90vw;
  color: #fff;
  text-align: center;
  white-space: pre-wrap;
  text-shadow: 1px 1px 2px #000, -1px -1px 2px #000;
  pointer-events: none;
}

#status {
  position: fixed;
  left: 50%;
  bottom: 16px;
  transform: translateX(-50%);
  color: #bbb;
  font: 14px/1.5 sans-serif;
  pointer-events: none;
  white-space: pre-wrap;
  text-align: center;
}

#status:empty { display: none; }