* { margin: 0; padding: 0; box-sizing: border-box; }
html, body {
  height: 100%;
  background: radial-gradient(circle at 50% 30%, #1b3148 0%, #0a1320 70%, #05080f 100%);
  color: #cfe4f5;
  font-family: "Segoe UI", system-ui, sans-serif;
  display: flex; align-items: center; justify-content: center;
  overflow: hidden;
  -webkit-tap-highlight-color: transparent;
}
#stage {
  position: relative;
  display: flex; align-items: center; justify-content: center;
  filter: drop-shadow(0 12px 40px rgba(0,0,0,0.55));
}
#game {
  background: #0c1c30;
  border-radius: 16px;
  image-rendering: auto;
  touch-action: none;
}
/* name bar pinned at the very top while building — never covered by the keyboard */
#namewrap {
  position: fixed; top: calc(env(safe-area-inset-top) + 8px); left: 50%; transform: translateX(-50%);
  display: none; align-items: center; gap: 8px; z-index: 40;
  background: rgba(8,18,30,0.94); padding: 7px 12px; border-radius: 16px;
  border: 2px solid #ffd23f; box-shadow: 0 6px 22px rgba(0,0,0,0.55); max-width: 96vw;
}
#namewrap.show { display: flex; }
#namelabel { font-size: 14px; font-weight: 800; color: #ffd23f; white-space: nowrap; }
#bossname {
  width: 190px; max-width: 46vw; padding: 9px 12px;
  font-family: inherit; font-size: 18px; font-weight: 800; text-align: center;
  color: #fff; background: rgba(255,255,255,0.10);
  border: 2px solid #ffd23f; border-radius: 10px; outline: none; caret-color: #ffd23f;
}
#bossname::placeholder { color: #7fa8cc; font-weight: 700; font-size: 13px; }
#nameok {
  min-width: 46px; min-height: 42px; font-size: 18px; font-weight: 900; cursor: pointer;
  color: #10243a; background: #ffd23f; border: none; border-radius: 10px;
  -webkit-tap-highlight-color: transparent; touch-action: manipulation;
}
#nameok:active { filter: brightness(1.12); }