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

body {
  background: linear-gradient(180deg, #4a90d9 0%, #87ceeb 40%, #b8d4e8 100%);
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  min-height: 100dvh;
  font-family: 'Quicksand', 'Microsoft YaHei', sans-serif;
  overflow: hidden;
  user-select: none;
  -webkit-user-select: none;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}

body.is-mobile {
  background: #3a7a2a;
  overflow: hidden;
}

body.is-mobile #game-wrapper {
  border-radius: 0;
  box-shadow: none;
  position: absolute;
  left: 50%;
  top: 50%;
}

#game-wrapper {
  border-radius: 18px;
  overflow: hidden;
  box-shadow:
    0 8px 32px rgba(0, 0, 0, 0.3),
    0 0 0 4px #5a3a1a,
    0 0 0 8px #8a6a3a;
  background: #7a5a3a;
  flex-shrink: 0;
}

body.is-mobile #game-wrapper {
  border-radius: 0;
  box-shadow: none;
}

#top-bar {
  background: linear-gradient(180deg, #8a7a5a 0%, #6a5a3a 100%);
  height: 70px;
  display: flex;
  align-items: center;
  padding: 0 14px;
  gap: 10px;
  border-bottom: 3px solid #4a3a2a;
  position: relative;
}

#top-bar::after {
  content: '';
  position: absolute;
  bottom: -16px;
  left: 0;
  right: 0;
  height: 16px;
  background: linear-gradient(180deg, #5a4a2a 0%, #4a7c3f 100%);
  z-index: 1;
  border-radius: 0 0 4px 4px;
}

#sun-counter {
  background: linear-gradient(135deg, #f5d742 0%, #e8a317 100%);
  color: #4a3000;
  font-weight: 700;
  font-size: 22px;
  padding: 6px 16px 6px 10px;
  border-radius: 30px;
  display: flex;
  align-items: center;
  gap: 6px;
  min-width: 90px;
  justify-content: center;
  box-shadow:
    0 3px 10px rgba(0, 0, 0, 0.25),
    inset 0 2px 0 rgba(255, 255, 200, 0.5);
  border: 2px solid #c9950a;
  position: relative;
}

.sun-icon-big {
  font-size: 26px;
  filter: drop-shadow(0 0 4px rgba(255, 200, 0, 0.4));
}

#plant-cards {
  display: flex;
  gap: 6px;
  flex: 1;
}

.plant-card {
  background: linear-gradient(180deg, #f0e8d0 0%, #d4c8a8 100%);
  border: 2px solid #b8a888;
  border-radius: 10px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 3px 6px 4px;
  min-width: 58px;
  transition: all 0.12s ease;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
  position: relative;
}

.plant-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 5px 12px rgba(0, 0, 0, 0.3);
  border-color: #8a7a5a;
}

.plant-card.selected {
  border-color: #e8c840;
  box-shadow:
    0 0 0 2px #e8c840,
    0 4px 12px rgba(232, 200, 64, 0.4);
  transform: translateY(-3px);
  background: linear-gradient(180deg, #f5edd5 0%, #ddd0b0 100%);
}

.plant-card.disabled {
  opacity: 0.45;
  cursor: not-allowed;
  filter: saturate(0.3);
}

.plant-card.disabled:hover {
  transform: none;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.card-icon-wrap {
  width: 42px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.card-emoji {
  font-size: 26px;
  line-height: 1;
  filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.15));
}

.card-cost-row {
  display: flex;
  align-items: center;
  gap: 2px;
  background: rgba(0, 0, 0, 0.08);
  padding: 1px 8px;
  border-radius: 8px;
  margin-top: 1px;
}

.card-sun-icon {
  font-size: 12px;
  color: #e8a317;
}

.card-cost {
  font-size: 12px;
  font-weight: 700;
  color: #4a3000;
}

#wave-display {
  background: rgba(0, 0, 0, 0.2);
  color: #e8d4b0;
  font-size: 14px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 8px;
  white-space: nowrap;
  border: 1px solid rgba(255, 255, 200, 0.1);
}

#mute-btn {
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid rgba(255, 255, 200, 0.1);
  border-radius: 8px;
  font-size: 18px;
  cursor: pointer;
  padding: 4px 8px;
  transition: all 0.15s ease;
  line-height: 1;
}

#mute-btn:hover {
  background: rgba(0, 0, 0, 0.35);
  transform: scale(1.05);
}

#mute-btn:active {
  transform: scale(0.95);
}

#game-canvas {
  display: block;
  cursor: default;
  background: #4a8c3a;
}

#game-canvas.planting {
  cursor: crosshair;
}

#game-over-overlay {
  position: absolute;
  top: 70px;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.65);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 100;
  backdrop-filter: blur(5px);
  animation: overlayFadeIn 0.4s ease;
}

#game-over-overlay.hidden {
  display: none;
}

@keyframes overlayFadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.overlay-inner {
  text-align: center;
  padding: 36px 50px;
  background: linear-gradient(180deg, #f0e8d0 0%, #d4c8a8 100%);
  border-radius: 20px;
  border: 3px solid #8a7a5a;
  box-shadow:
    0 0 60px rgba(0, 0, 0, 0.5),
    inset 0 2px 0 rgba(255, 255, 200, 0.3);
  animation: overlayContentIn 0.5s ease 0.1s both;
  max-width: 400px;
}

@keyframes overlayContentIn {
  from { opacity: 0; transform: translateY(20px) scale(0.95); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.overlay-icon {
  font-size: 48px;
  margin-bottom: 8px;
}

#result-title {
  color: #4a3000;
  font-family: 'Fredoka One', cursive;
  font-size: 36px;
  margin-bottom: 4px;
  letter-spacing: 1px;
}

#result-subtitle {
  color: #7a6a50;
  font-size: 16px;
  margin-bottom: 20px;
  font-weight: 500;
}

#result-stats {
  display: flex;
  gap: 12px;
  justify-content: center;
  margin-bottom: 22px;
}

.stat-item {
  background: rgba(0, 0, 0, 0.06);
  padding: 10px 16px;
  border-radius: 12px;
  min-width: 80px;
  border: 1px solid rgba(0, 0, 0, 0.08);
}

.stat-label {
  display: block;
  font-size: 11px;
  color: #8a7a6a;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 4px;
}

.stat-value {
  display: block;
  font-size: 22px;
  font-weight: 700;
  color: #4a3000;
  font-family: 'Fredoka One', cursive;
}

#restart-btn {
  background: linear-gradient(135deg, #e8a317 0%, #d4900a 100%);
  color: #fff;
  border: none;
  padding: 12px 40px;
  font-size: 18px;
  font-weight: 700;
  font-family: 'Quicksand', 'Microsoft YaHei', sans-serif;
  border-radius: 30px;
  cursor: pointer;
  transition: all 0.2s ease;
  box-shadow: 0 3px 12px rgba(200, 140, 10, 0.4);
  letter-spacing: 0.5px;
}

#restart-btn:hover {
  transform: translateY(-2px) scale(1.03);
  box-shadow: 0 6px 20px rgba(200, 140, 10, 0.5);
  background: linear-gradient(135deg, #f5b72a 0%, #e0a010 100%);
}

#restart-btn:active {
  transform: translateY(0) scale(0.98);
}

.plant-card {
  animation: cardAppear 0.3s ease forwards;
  opacity: 0;
}

.plant-card:nth-child(1) { animation-delay: 0.05s; }
.plant-card:nth-child(2) { animation-delay: 0.1s; }
.plant-card:nth-child(3) { animation-delay: 0.15s; }
.plant-card:nth-child(4) { animation-delay: 0.2s; }

@keyframes cardAppear {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* landscape mobile: tighter top bar */
@media (orientation: landscape) and (max-height: 500px) {
  #top-bar {
    height: 48px;
    padding: 0 6px;
    gap: 4px;
  }

  #top-bar::after {
    bottom: -10px;
    height: 10px;
  }

  #sun-counter {
    font-size: 15px;
    padding: 2px 8px 2px 6px;
    min-width: 60px;
  }

  .sun-icon-big {
    font-size: 17px;
  }

  .plant-card {
    min-width: 42px;
    padding: 1px 3px 2px;
    border-radius: 6px;
  }

  .card-icon-wrap {
    width: 28px;
    height: 22px;
  }

  .card-emoji {
    font-size: 17px;
  }

  .card-cost {
    font-size: 10px;
  }

  #wave-display {
    font-size: 11px;
    padding: 2px 6px;
  }

  #mute-btn {
    font-size: 14px;
    padding: 2px 5px;
  }

  .overlay-inner {
    padding: 20px 28px;
    max-width: 300px;
  }

  .overlay-icon {
    font-size: 36px;
  }

  #result-title {
    font-size: 26px;
  }

  #result-subtitle {
    font-size: 13px;
    margin-bottom: 12px;
  }

  #restart-btn {
    padding: 8px 28px;
    font-size: 15px;
  }
}

/* tablet */
@media (max-width: 960px) {
  #top-bar {
    height: 60px;
    padding: 0 8px;
    gap: 6px;
  }

  #top-bar::after {
    bottom: -12px;
    height: 12px;
  }

  #sun-counter {
    font-size: 18px;
    padding: 4px 12px 4px 8px;
    min-width: 75px;
  }

  .sun-icon-big {
    font-size: 22px;
  }

  #plant-cards {
    gap: 4px;
  }

  .plant-card {
    min-width: 50px;
    padding: 2px 4px 3px;
    border-radius: 8px;
  }

  .card-icon-wrap {
    width: 36px;
    height: 28px;
  }

  .card-emoji {
    font-size: 22px;
  }

  .card-cost {
    font-size: 11px;
  }

  .card-sun-icon {
    font-size: 10px;
  }

  #wave-display {
    font-size: 12px;
    padding: 3px 8px;
  }

  #mute-btn {
    font-size: 16px;
    padding: 3px 6px;
  }

  .overlay-inner {
    padding: 24px 30px;
    max-width: 340px;
  }

  .overlay-icon {
    font-size: 40px;
  }

  #result-title {
    font-size: 28px;
  }

  #result-subtitle {
    font-size: 14px;
    margin-bottom: 14px;
  }

  #result-stats {
    gap: 8px;
  }

  .stat-item {
    padding: 8px 12px;
    min-width: 70px;
  }

  .stat-label {
    font-size: 10px;
  }

  .stat-value {
    font-size: 18px;
  }

  #restart-btn {
    padding: 10px 32px;
    font-size: 16px;
  }
}

/* phone */
@media (max-width: 500px) {
  #top-bar {
    height: 52px;
    padding: 0 6px;
    gap: 4px;
  }

  #sun-counter {
    font-size: 16px;
    padding: 3px 8px 3px 6px;
    min-width: 62px;
  }

  .sun-icon-big {
    font-size: 18px;
  }

  .plant-card {
    min-width: 44px;
    padding: 2px 3px 2px;
    border-radius: 6px;
  }

  .card-icon-wrap {
    width: 30px;
    height: 24px;
  }

  .card-emoji {
    font-size: 18px;
  }

  .card-cost {
    font-size: 10px;
  }

  .card-sun-icon {
    font-size: 9px;
  }

  #wave-display {
    font-size: 11px;
    padding: 2px 6px;
  }

  #mute-btn {
    font-size: 14px;
    padding: 2px 5px;
  }
}