:root {
  --ink: #e8f0ff;
  --gold: #ffe27a;
  --panel: rgba(8, 16, 32, 0.62);
}

* {
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
  user-select: none;
  touch-action: none;
}

html,
body {
  margin: 0;
  height: 100%;
  height: 100dvh;
  overflow: hidden;
  font-family: "Jua", system-ui, sans-serif;
  background:
    radial-gradient(ellipse at 40% 0%, rgba(60, 100, 180, 0.45), transparent 50%),
    linear-gradient(180deg, #0a1428 0%, #152848 50%, #0a1624 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--ink);
}

.stage {
  position: relative;
  width: min(100vw, calc(100dvh * 0.557));
  height: min(100dvh, calc(100vw / 0.557));
  max-width: 420px;
  border-radius: 18px;
  overflow: hidden;
  box-shadow: 0 22px 55px rgba(0, 0, 0, 0.55);
  border: 3px solid rgba(180, 210, 255, 0.28);
  background: #0a1628;
}

canvas {
  display: block;
  width: 100%;
  height: 100%;
}

.hud {
  position: absolute;
  top: 10px;
  left: 10px;
  right: 10px;
  display: flex;
  justify-content: space-between;
  gap: 8px;
  pointer-events: none;
  z-index: 3;
}

.panel {
  background: var(--panel);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(180, 210, 255, 0.22);
  border-radius: 14px;
  padding: 8px 12px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  font-size: 13px;
  min-width: 108px;
}

.panel.right {
  align-items: flex-end;
}

.panel b {
  color: var(--gold);
  font-weight: 400;
}

.boss-bar {
  position: absolute;
  top: 72px;
  left: 16px;
  right: 16px;
  z-index: 3;
  pointer-events: none;
}

.boss-bar.hidden {
  display: none;
}

.boss-bar span {
  display: block;
  text-align: center;
  font-size: 13px;
  color: #ffb0a0;
  margin-bottom: 4px;
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.6);
}

.boss-bar .bar {
  height: 10px;
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.45);
  border: 1px solid rgba(255, 160, 140, 0.4);
  overflow: hidden;
}

.boss-bar .bar > i {
  display: block;
  height: 100%;
  width: 100%;
  background: linear-gradient(90deg, #ff5a4a, #ffe27a);
  border-radius: inherit;
  transition: width 0.12s ease;
}

.hint {
  position: absolute;
  bottom: 78px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  pointer-events: none;
  padding: 7px 14px;
  border-radius: 999px;
  background: rgba(8, 16, 32, 0.55);
  border: 1px solid rgba(180, 210, 255, 0.2);
  font-size: 12px;
  color: rgba(232, 240, 255, 0.9);
  white-space: nowrap;
  transition: opacity 0.3s ease;
}

.hint.fade,
.hint.hidden {
  opacity: 0;
}

.bomb-btn {
  position: absolute;
  right: 14px;
  bottom: 18px;
  z-index: 4;
  appearance: none;
  border: 2px solid rgba(255, 160, 80, 0.55);
  background: rgba(40, 20, 10, 0.75);
  backdrop-filter: blur(8px);
  color: #ffd0a0;
  font-family: inherit;
  font-size: 15px;
  padding: 12px 16px;
  border-radius: 16px;
  cursor: pointer;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.35);
}

.bomb-btn.hidden {
  display: none;
}

.bomb-btn:active {
  transform: scale(0.96);
}

.bomb-btn:disabled {
  opacity: 0.4;
}

.overlay {
  position: absolute;
  inset: 0;
  z-index: 6;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 24px;
  background:
    radial-gradient(ellipse at 50% 18%, rgba(80, 140, 220, 0.35), transparent 48%),
    linear-gradient(180deg, rgba(12, 28, 55, 0.94), rgba(6, 12, 28, 0.97));
}

.overlay.hidden {
  display: none;
}

.badge {
  display: inline-block;
  background: linear-gradient(180deg, #7ec8ff, #3a7acc);
  color: #061428;
  border-radius: 999px;
  padding: 6px 14px;
  font-size: 12px;
  margin-bottom: 8px;
  letter-spacing: 0.04em;
}

.badge.soft {
  background: linear-gradient(180deg, #9ae06a, #4aaa30);
  color: #143010;
}

.title-thumb {
  border-radius: 28px;
  margin-bottom: 10px;
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.4);
  border: 2px solid rgba(126, 200, 255, 0.45);
}

.overlay h1 {
  font-family: "Bagel Fat One", "Jua", sans-serif;
  font-size: 36px;
  margin: 4px 0 10px;
  color: #f0f6ff;
  text-shadow: 0 4px 0 rgba(0, 20, 50, 0.4);
}

.overlay p {
  margin: 0 0 16px;
  color: rgba(220, 235, 255, 0.85);
  line-height: 1.45;
  font-size: 15px;
}

.btn {
  appearance: none;
  border: none;
  cursor: pointer;
  font-family: inherit;
  font-size: 20px;
  padding: 12px 28px;
  border-radius: 999px;
  color: #061428;
  background: linear-gradient(180deg, #9ad0ff, #4a8ad8);
  box-shadow: 0 8px 0 #1a4a88, 0 14px 28px rgba(0, 0, 0, 0.35);
  margin-bottom: 14px;
}

.btn:active {
  transform: translateY(3px);
  box-shadow: 0 4px 0 #1a4a88, 0 8px 16px rgba(0, 0, 0, 0.3);
}

.overlay a {
  color: #d8e8ff;
  text-decoration: none;
  font-size: 14px;
  opacity: 0.85;
}