*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --font: 'Fredoka', sans-serif;
  --radius: 14px;
  --shadow: 0 6px 28px rgba(0, 0, 0, 0.35);
}

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: #111;
  font-family: var(--font);
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ── Container ── */
#game-container {
  position: relative;
  overflow: hidden;
}

#game-canvas {
  display: block;
  width: 100%;
  height: 100%;
  image-rendering: auto;
}

/* ── Screens ── */
.screen {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 10;
  transition: opacity 0.35s ease, transform 0.35s ease;
}

.screen.hidden {
  opacity: 0;
  pointer-events: none;
  transform: translateY(12px);
}

.tap-target {
  cursor: pointer;
}

/* ── Title ── */
#title-screen {
  gap: 36px;
  background: linear-gradient(180deg, rgba(0,0,0,0.15) 0%, rgba(0,0,0,0.45) 100%);
}

.title-group {
  text-align: center;
}

.game-title {
  font-size: 64px;
  font-weight: 700;
  color: #fff;
  text-shadow:
    3px 3px 0 #e65100,
    6px 6px 0 rgba(0,0,0,0.25);
  line-height: 1;
  letter-spacing: 2px;
}

.game-title span {
  color: #FFD54F;
  font-size: 72px;
}

.subtitle {
  margin-top: 12px;
  color: rgba(255,255,255,0.7);
  font-size: 14px;
  font-weight: 400;
  letter-spacing: 1px;
}

.subtitle strong {
  color: #fff;
  font-weight: 600;
}

/* ── Level Select ── */
#level-screen {
  gap: 16px;
  padding: 24px 18px;
  justify-content: flex-start;
  padding-top: 48px;
  background: rgba(0, 0, 0, 0.55);
  backdrop-filter: blur(6px);
}

.screen-heading {
  font-size: 28px;
  font-weight: 700;
  color: #fff;
  text-shadow: 2px 2px 0 rgba(0,0,0,0.3);
  margin-bottom: 4px;
  letter-spacing: 2px;
}

#level-cards {
  display: flex;
  flex-direction: column;
  gap: 12px;
  width: 100%;
}

.level-card {
  display: flex;
  align-items: center;
  gap: 12px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius);
  padding: 10px;
  transition: background 0.2s, border-color 0.2s;
}

.level-card:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.2);
}

.card-preview {
  width: 80px;
  height: 80px;
  border-radius: 10px;
  flex-shrink: 0;
  position: relative;
  overflow: hidden;
}

.level-bg-0 {
  background: linear-gradient(180deg, #87CEEB 0%, #B2EBF2 50%, #A5D6A7 100%);
}

.level-bg-1 {
  background: linear-gradient(180deg, #0D0221 0%, #6B2FA0 50%, #FF6B35 100%);
}

.level-bg-2 {
  background: linear-gradient(180deg, #0A0A1A 0%, #0D0D3D 50%, #1a1a4e 100%);
  box-shadow: inset 0 0 20px rgba(0, 255, 255, 0.15);
}

.card-badge {
  position: absolute;
  bottom: 4px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 9px;
  font-weight: 700;
  color: #fff;
  background: rgba(0, 0, 0, 0.55);
  padding: 2px 8px;
  border-radius: 6px;
  letter-spacing: 1px;
  white-space: nowrap;
}

.badge-free {
  background: rgba(76, 175, 80, 0.7);
}

.badge-paid {
  background: rgba(255, 64, 129, 0.7);
}

.card-info {
  flex: 1;
  min-width: 0;
}

.card-info h3 {
  font-size: 16px;
  font-weight: 700;
  color: #fff;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sparkle {
  color: #FFD54F;
  font-size: 13px;
}

.card-tier {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.55);
  margin-top: 2px;
}

.card-best {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.4);
  margin-top: 2px;
}

/* ── Death Screen ── */
#death-screen {
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
}

.score-card {
  background: rgba(30, 30, 40, 0.92);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 20px;
  padding: 32px 36px;
  text-align: center;
  box-shadow: var(--shadow);
  min-width: 260px;
}

.game-over-text {
  font-size: 32px;
  font-weight: 700;
  color: #FF5252;
  text-shadow: 2px 2px 0 rgba(0,0,0,0.3);
  margin-bottom: 20px;
  letter-spacing: 3px;
}

.score-rows {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 24px;
}

.score-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 6px 0;
}

.score-label {
  font-size: 14px;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.5);
  letter-spacing: 2px;
}

.score-value {
  font-size: 32px;
  font-weight: 700;
  color: #fff;
}

.death-buttons {
  display: flex;
  gap: 12px;
}

/* ── Buttons ── */
.btn {
  font-family: var(--font);
  font-size: 16px;
  font-weight: 700;
  border: none;
  border-radius: 12px;
  padding: 12px 28px;
  cursor: pointer;
  letter-spacing: 1px;
  transition: transform 0.12s, box-shadow 0.12s, background 0.2s;
  outline: none;
  -webkit-tap-highlight-color: transparent;
}

.btn:active {
  transform: scale(0.95);
}

.btn-primary {
  background: #FF6D00;
  color: #fff;
  box-shadow: 0 4px 0 #BF360C, 0 6px 16px rgba(0,0,0,0.3);
}

.btn-primary:hover {
  background: #FF8F00;
}

.btn-primary:active {
  box-shadow: 0 2px 0 #BF360C, 0 3px 8px rgba(0,0,0,0.3);
  transform: translateY(2px) scale(0.98);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  box-shadow: 0 4px 0 rgba(0,0,0,0.2);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.18);
}

.btn-play {
  font-size: 13px;
  padding: 8px 16px;
  border-radius: 10px;
  flex-shrink: 0;
  background: #4CAF50;
  color: #fff;
  box-shadow: 0 3px 0 #2E7D32;
}

.btn-play:hover {
  background: #66BB6A;
}

.btn-locked {
  background: rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.6);
  box-shadow: 0 3px 0 rgba(0, 0, 0, 0.2);
}

.btn-locked:hover {
  background: rgba(255, 255, 255, 0.15);
  color: rgba(255, 255, 255, 0.8);
}

.lock-icon {
  font-size: 12px;
}

.btn-play.unlocked {
  background: #4CAF50;
  color: #fff;
  box-shadow: 0 3px 0 #2E7D32;
}

/* ── Animations ── */
.pulse {
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

.new-best {
  animation: newBest 0.6s ease-out;
  color: #FFD54F !important;
}

@keyframes newBest {
  0% { transform: scale(1); }
  50% { transform: scale(1.3); }
  100% { transform: scale(1); }
}

/* ── Responsive ── */
@media (max-height: 600px) {
  #level-screen { padding-top: 24px; gap: 10px; }
  .card-preview { width: 64px; height: 64px; }
  .game-title { font-size: 48px; }
  .game-title span { font-size: 54px; }
}