:root {
  --sky-top: #9fd8ff;
  --sky-mid: #c8e9ff;
  --sky-bot: #ffe8f0;
  --ink: #4a3545;
  --pink: #ff6b9d;
  --cream: #fff8f2;
  --card: rgba(255, 248, 242, 0.92);
}

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

html,
body {
  margin: 0;
  height: 100%;
  height: 100dvh;
  overflow: hidden;
  font-family: "Jua", "Nunito", system-ui, sans-serif;
  background: linear-gradient(180deg, #9fd8ff 0%, #ffd6ec 55%, #ffc0e0 100%);
  color: var(--ink);
  touch-action: none;
}

#app {
  width: 100%;
  height: 100%;
  height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: env(safe-area-inset-top) env(safe-area-inset-right)
    env(safe-area-inset-bottom) env(safe-area-inset-left);
}

.stage {
  position: relative;
  width: min(100vw, calc(100dvh * 0.5625), calc(100vh * 0.5625));
  height: min(100dvh, 100vh, calc(100vw / 0.5625));
  max-width: 480px;
  max-height: 100dvh;
  border-radius: 18px;
  overflow: hidden;
  box-shadow: 0 18px 50px rgba(180, 100, 150, 0.35);
  background: #9fd8ff;
  border: 3px solid rgba(255, 255, 255, 0.7);
}

canvas#game {
  display: block;
  width: 100%;
  height: 100%;
  background: transparent;
}

.overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 24px 18px;
  background:
    radial-gradient(ellipse at 50% 18%, rgba(255, 255, 255, 0.55), transparent 55%),
    linear-gradient(180deg, rgba(159, 216, 255, 0.88), rgba(255, 232, 240, 0.95));
  z-index: 5;
  text-align: center;
}

.overlay.hidden {
  display: none;
}

.badge {
  display: inline-block;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: #fff;
  background: var(--pink);
  border-radius: 999px;
  padding: 6px 12px;
  margin-bottom: 10px;
}

.title-thumb {
  border-radius: 24px;
  margin-bottom: 8px;
  box-shadow: 0 8px 0 rgba(255, 107, 157, 0.3);
}

h1 {
  margin: 0 0 6px;
  font-family: "Bagel Fat One", "Jua", cursive;
  font-weight: 400;
  font-size: clamp(28px, 8vw, 40px);
  line-height: 1.15;
  color: #ff4f8b;
  text-shadow: 0 3px 0 #fff, 0 6px 18px rgba(255, 107, 157, 0.35);
}

.subtitle {
  margin: 0 0 18px;
  font-size: 15px;
  color: #6a4a5a;
}

.char-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  width: min(320px, 86%);
  margin-bottom: 16px;
}

.char-btn {
  appearance: none;
  border: 3px solid transparent;
  border-radius: 18px;
  background: var(--card);
  padding: 10px 8px 8px;
  cursor: pointer;
  transition: transform 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease;
  box-shadow: 0 8px 20px rgba(90, 50, 70, 0.08);
}

.char-btn img {
  width: 72px;
  height: 72px;
  object-fit: contain;
  display: block;
  margin: 0 auto 6px;
  pointer-events: none;
}

.char-btn span {
  display: block;
  font-size: 14px;
  color: var(--ink);
}

.char-btn.selected {
  border-color: var(--pink);
  transform: translateY(-2px) scale(1.03);
  box-shadow: 0 10px 24px rgba(255, 107, 157, 0.28);
}

.char-btn:active {
  transform: scale(0.97);
}

.btn {
  appearance: none;
  border: none;
  border-radius: 999px;
  background: linear-gradient(180deg, #ff8ab5, #ff5f97);
  color: #fff;
  font: inherit;
  font-size: 18px;
  padding: 14px 36px;
  cursor: pointer;
  box-shadow: 0 8px 0 #e03f74, 0 14px 28px rgba(255, 95, 151, 0.35);
  transition: transform 0.12s ease;
}

.btn:active {
  transform: translateY(4px);
  box-shadow: 0 4px 0 #e03f74, 0 8px 16px rgba(255, 95, 151, 0.3);
}

.btn:disabled {
  opacity: 0.45;
  pointer-events: none;
}

.hint {
  margin-top: 14px;
  font-size: 13px;
  color: #7a5a6a;
  line-height: 1.45;
}

.home-link {
  color: #7a5a6a;
  text-decoration: underline;
  font: inherit;
  font-size: 14px;
}

.hud {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  z-index: 4;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding: 12px 12px 0;
  pointer-events: none;
  font-size: 14px;
  color: #fff;
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.35);
}

.hud .panel {
  background: rgba(74, 53, 69, 0.35);
  backdrop-filter: blur(6px);
  border-radius: 14px;
  padding: 8px 12px;
  min-width: 88px;
}

.hud .label {
  font-size: 11px;
  opacity: 0.85;
}

.hud .value {
  font-size: 18px;
  line-height: 1.2;
}

.lives {
  display: flex;
  gap: 4px;
  margin-top: 4px;
}

.life-pip {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #ff8ab5;
  box-shadow: 0 0 0 2px rgba(255, 255, 255, 0.55);
}

.life-pip.empty {
  background: rgba(255, 255, 255, 0.25);
}

.power-meter {
  margin-top: 4px;
  height: 6px;
  width: 72px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.25);
  overflow: hidden;
}

.power-meter > i {
  display: block;
  height: 100%;
  width: 20%;
  background: linear-gradient(90deg, #ffe27a, #ff6b9d);
  border-radius: inherit;
}

.touch-hint {
  position: absolute;
  bottom: 18px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 4;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.9);
  background: rgba(74, 53, 69, 0.35);
  padding: 8px 14px;
  border-radius: 999px;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.4s ease;
}

.touch-hint.show {
  opacity: 1;
}

.sound-btn {
  position: absolute;
  top: 12px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 6;
  appearance: none;
  border: none;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(74, 53, 69, 0.35);
  color: #fff;
  font-size: 18px;
  cursor: pointer;
  backdrop-filter: blur(6px);
  pointer-events: auto;
}

.sound-btn:active {
  transform: translateX(-50%) scale(0.94);
}

.result-score {
  font-size: 42px;
  color: #ff4f8b;
  margin: 8px 0 4px;
  text-shadow: 0 3px 0 #fff;
}

.result-detail {
  margin: 0 0 18px;
  color: #6a4a5a;
  font-size: 15px;
}

@media (max-height: 640px) {
  .char-btn img {
    width: 56px;
    height: 56px;
  }

  h1 {
    font-size: 26px;
  }
}