:root {
  --flappy-ink: #0f1419;
  --flappy-panel: rgba(10, 10, 10, 0.82);
  --flappy-accent: #39ff14;
  --flappy-gold: #e8b84a;
  --flappy-muted: #9bb88a;
  --flappy-border: rgba(168, 168, 168, 0.28);
  --flappy-font: "Segoe UI", "Trebuchet MS", sans-serif;
}

body.flappy-page {
  background: var(--bg, #0a0a0a);
}

#game-play {
  padding: 0 0 2rem;
}

.flappy-root {
  max-width: 480px;
  margin: 0 auto;
  padding: 0 1rem;
}

.flappy-stage-wrap {
  position: relative;
  width: 100%;
  border: 1px solid var(--flappy-border);
  border-radius: 12px;
  overflow: hidden;
  background: #1a2430;
  touch-action: none;
  user-select: none;
  display: flex;
  flex-direction: column;
}

.flappy-playfield {
  position: relative;
  width: 100%;
  aspect-ratio: 2 / 3;
  max-height: min(78vh, 720px);
  flex: 0 0 auto;
}

.flappy-tap-pad {
  display: none;
}

.flappy-canvas {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
  position: relative;
  z-index: 1;
}

.flappy-hud {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.flappy-score {
  margin: 0.75rem 0 0;
  text-align: center;
  font-family: var(--flappy-font);
  font-size: clamp(2rem, 8vw, 3rem);
  font-weight: 700;
  color: #fff;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.65), 0 0 12px rgba(57, 255, 20, 0.35);
}

.flappy-overlay {
  position: absolute;
  inset: 0;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  padding: 1.25rem;
  background: var(--flappy-panel);
  color: var(--text, #f2f2f2);
  text-align: center;
  overflow-y: auto;
}

.flappy-overlay--compact {
  justify-content: center;
  background: rgba(10, 10, 10, 0.55);
}

#flappy-ready {
  pointer-events: none;
}

#flappy-over {
  pointer-events: auto;
}

.flappy-over-actions {
  position: relative;
  z-index: 3;
  pointer-events: auto;
}

.flappy-overlay[hidden] {
  display: none !important;
}

.flappy-eyebrow {
  margin: 0;
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--flappy-muted);
}

.flappy-title {
  margin: 0;
  font-family: var(--flappy-font);
  font-size: clamp(1.6rem, 6vw, 2.2rem);
  color: var(--flappy-accent);
}

.flappy-tagline {
  margin: 0;
  max-width: 22rem;
  color: var(--flappy-muted);
  line-height: 1.45;
}

.flappy-best {
  margin: 0;
  font-size: 0.95rem;
}

.flappy-best strong {
  color: var(--flappy-gold);
}

.flappy-difficulty {
  margin: 0;
  padding: 0;
  border: 0;
  min-inline-size: 0;
  max-width: 100%;
  text-align: left;
}

.flappy-radio {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  margin: 0.35rem 0;
  font-size: 0.9rem;
  color: var(--text, #f2f2f2);
  cursor: pointer;
}

.flappy-radio input {
  margin-top: 0.2rem;
  accent-color: var(--flappy-accent);
}

.flappy-skins {
  margin: 0;
  padding: 0;
  border: 0;
  min-inline-size: 0;
  max-width: 100%;
}

.flappy-skins-legend {
  font-size: 0.8rem;
  color: var(--flappy-muted);
  margin-bottom: 0.5rem;
}

.flappy-skins-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: center;
  max-width: 100%;
}

.flappy-skin-btn {
  position: relative;
  width: 52px;
  height: 52px;
  padding: 0;
  border: 2px solid var(--flappy-border);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.06);
  cursor: pointer;
  overflow: hidden;
  transition: border-color 0.15s, transform 0.15s;
}

.flappy-skin-btn img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.flappy-skin-btn.is-selected {
  border-color: var(--flappy-accent);
  box-shadow: 0 0 0 1px var(--flappy-accent);
}

.flappy-skin-btn.is-locked {
  cursor: not-allowed;
  opacity: 0.45;
  filter: grayscale(0.85);
}

.flappy-skin-btn.is-locked::after {
  content: attr(data-lock-label);
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.55rem;
  font-weight: 700;
  color: #fff;
  background: rgba(0, 0, 0, 0.55);
  line-height: 1.1;
  padding: 0.15rem;
}

.flappy-skin-btn:not(.is-locked):hover {
  transform: translateY(-2px);
  border-color: var(--flappy-accent);
}

.flappy-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  justify-content: center;
  margin-top: 0.25rem;
}

.flappy-panel-title {
  margin: 0;
  font-size: 1.35rem;
  color: var(--flappy-accent);
}

.flappy-howto-list {
  margin: 0;
  padding-left: 1.25rem;
  text-align: left;
  max-width: 22rem;
  line-height: 1.5;
  color: var(--text, #f2f2f2);
}

.flappy-ready-text {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 600;
  color: #fff;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.7);
  animation: flappy-pulse 1.2s ease-in-out infinite;
}

@keyframes flappy-pulse {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.55;
  }
}

.flappy-over-score {
  margin: 0;
  font-size: 1.1rem;
}

.flappy-over-best {
  margin: 0;
  color: var(--flappy-gold);
  font-weight: 600;
}

.flappy-unlock-toast {
  margin: 0;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--flappy-accent);
  border-radius: 8px;
  color: var(--flappy-accent);
  font-size: 0.9rem;
  max-width: 20rem;
}

@media (max-width: 480px) {
  .flappy-root {
    padding: 0 0.5rem;
  }

  .flappy-stage-wrap {
    border-radius: 8px;
    max-height: min(92vh, 820px);
  }

  .flappy-playfield {
    max-height: min(72vh, 680px);
  }

  .flappy-tap-pad {
    display: block;
    flex: 1 1 auto;
    min-height: 4.5rem;
    background: linear-gradient(180deg, #4a7c3f 0%, #6b5344 28%, #3d2e24 100%);
    border-top: 1px solid rgba(0, 0, 0, 0.22);
    cursor: pointer;
  }

  .flappy-skin-btn {
    width: 44px;
    height: 44px;
  }
}