/* 将棋フロンティア2 Web 版のページ。ゲームの画面（canvas）を中央に置き、周囲は藍色の背景 */
html, body {
  margin: 0;
  padding: 0;
  width: 100%;
  height: 100%;
  background: #151a26;
  color: #ece6d9;
  font-family: "Noto Sans JP", "Hiragino Sans", "Yu Gothic", sans-serif;
  overflow: hidden;
  overscroll-behavior: none;
}

#sf2-stage {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #151a26 radial-gradient(ellipse at center, #1e2536 0%, #151a26 70%);
}

#unity-canvas {
  display: block;
  background: #151a26;
  touch-action: none;
  box-shadow: 0 0 40px rgba(0, 0, 0, 0.5);
}

#sf2-loading {
  position: absolute;
  inset: 0;
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 18px;
  pointer-events: none;
}

.sf2-title {
  font-size: 28px;
  letter-spacing: 0.15em;
  color: #e8c66a;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.6);
}

.sf2-bar {
  width: min(70vw, 360px);
  height: 10px;
  border-radius: 5px;
  background: rgba(255, 255, 255, 0.12);
  overflow: hidden;
}

#sf2-bar-fill {
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, #c8412f, #e8c66a);
  transition: width 0.2s ease-out;
}

#sf2-loading-text {
  font-size: 14px;
  color: #b9b3a6;
}

#unity-warning {
  position: absolute;
  left: 50%;
  top: 5%;
  transform: translate(-50%);
  display: none;
  z-index: 10;
  font-size: 14px;
}