/* === Reset & Base === */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background-color: #F5F0E1;
  color: #3D3D3D;
  min-height: 100vh;
  overflow-x: hidden;
  touch-action: manipulation;
  user-select: none;
  -webkit-user-select: none;
}

/* === Bamboo Texture Background === */
body::before {
  content: '';
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background:
    repeating-linear-gradient(
      90deg,
      transparent,
      transparent 18px,
      rgba(139, 105, 20, 0.04) 18px,
      rgba(139, 105, 20, 0.04) 20px
    ),
    repeating-linear-gradient(
      0deg,
      transparent,
      transparent 30px,
      rgba(139, 105, 20, 0.03) 30px,
      rgba(139, 105, 20, 0.03) 32px
    );
  pointer-events: none;
  z-index: 0;
}

#app {
  position: relative;
  z-index: 1;
  max-width: 480px;
  margin: 0 auto;
  padding: 0 16px 40px;
}

/* === Header === */
.header {
  text-align: center;
  padding: 32px 0 20px;
}

.title {
  font-size: 2rem;
  font-weight: 900;
  color: #3D5A3E;
  line-height: 1.3;
  text-shadow: 1px 1px 0 rgba(212, 168, 83, 0.3);
}

.subtitle {
  font-size: 0.95rem;
  color: #8B6914;
  margin-top: 8px;
  font-weight: 500;
}

/* === Play Area === */
.play-area {
  position: relative;
  background: linear-gradient(180deg, rgba(61, 90, 62, 0.06) 0%, rgba(212, 168, 83, 0.1) 100%);
  border: 2px dashed rgba(139, 105, 20, 0.2);
  border-radius: 20px;
  padding: 24px 16px 16px;
  min-height: 320px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  cursor: grab;
  transition: border-color 0.3s;
}

.play-area:active,
.play-area.active {
  cursor: grabbing;
  border-color: rgba(212, 168, 83, 0.5);
  background: linear-gradient(180deg, rgba(61, 90, 62, 0.12) 0%, rgba(212, 168, 83, 0.18) 100%);
}

.cicada-container {
  position: relative;
  width: 180px;
  height: 230px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.1s;
}

.cicada-svg {
  width: 160px;
  height: auto;
  filter: drop-shadow(2px 4px 6px rgba(0,0,0,0.15));
}

/* Wing animation */
.wing {
  transform-origin: center;
  transition: transform 0.05s;
}

.wing-left {
  transform-box: fill-box;
  transform-origin: right center;
}

.wing-right {
  transform-box: fill-box;
  transform-origin: left center;
}

.cicada-svg.vibrating .wing-left {
  animation: flutterLeft 0.04s infinite alternate;
}

.cicada-svg.vibrating .wing-right {
  animation: flutterRight 0.04s infinite alternate;
}

@keyframes flutterLeft {
  from { transform: rotate(-25deg) skewY(0deg); }
  to { transform: rotate(-25deg) skewY(-12deg); }
}

@keyframes flutterRight {
  from { transform: rotate(25deg) skewY(0deg); }
  to { transform: rotate(25deg) skewY(12deg); }
}

/* Pull hint */
.pull-hint {
  position: absolute;
  bottom: 8px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  color: #8B6914;
  font-size: 0.85rem;
  opacity: 0.8;
  animation: bounceHint 1.5s ease-in-out infinite;
  pointer-events: none;
}

.pull-hint.hidden {
  display: none;
}

.pull-arrow {
  font-size: 1.4rem;
}

@keyframes bounceHint {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(-8px); }
}

/* Sound Wave Visualizer */
.sound-wave {
  display: flex;
  align-items: center;
  gap: 3px;
  height: 40px;
  margin-top: 16px;
  opacity: 0;
  transition: opacity 0.2s;
}

.sound-wave.active {
  opacity: 1;
}

.wave-bar {
  width: 4px;
  height: 8px;
  background: #D4A853;
  border-radius: 2px;
  transition: height 0.05s;
  min-height: 4px;
}

/* === Mode Selector === */
.mode-selector {
  margin-top: 28px;
}

.section-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: #3D5A3E;
  text-align: center;
  margin-bottom: 14px;
}

.mode-buttons {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
}

.mode-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 12px 4px;
  border: 2px solid rgba(139, 105, 20, 0.15);
  border-radius: 14px;
  background: rgba(255,255,255,0.6);
  cursor: pointer;
  transition: all 0.2s;
  font-size: 0.8rem;
  color: #5A5A5A;
}

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

.mode-btn.active {
  border-color: #D4A853;
  background: rgba(212, 168, 83, 0.15);
  color: #3D5A3E;
  box-shadow: 0 2px 8px rgba(212, 168, 83, 0.2);
}

.mode-emoji {
  font-size: 1.6rem;
}

.mode-name {
  font-weight: 700;
  font-size: 0.85rem;
}

.mode-desc {
  font-size: 0.65rem;
  opacity: 0.6;
}

/* === PK Section === */
.pk-section {
  margin-top: 28px;
}

.pk-info {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.pk-card {
  background: rgba(255,255,255,0.7);
  border: 2px solid rgba(139, 105, 20, 0.12);
  border-radius: 14px;
  padding: 16px;
  text-align: center;
}

.pk-label {
  font-size: 0.8rem;
  color: #8B8B8B;
  margin-bottom: 6px;
}

.pk-value {
  font-size: 2.2rem;
  font-weight: 900;
  color: #3D5A3E;
  line-height: 1.2;
}

.pk-unit {
  font-size: 0.75rem;
  color: #AAA;
  margin-top: 4px;
}

.pk-rank-toggle {
  text-align: center;
  margin-top: 16px;
  padding: 12px;
  background: rgba(212, 168, 83, 0.12);
  border-radius: 12px;
  font-weight: 600;
  color: #8B6914;
  cursor: pointer;
  font-size: 0.95rem;
  transition: background 0.2s;
}

.pk-rank-toggle:active {
  background: rgba(212, 168, 83, 0.25);
}

/* === Modal === */
.modal-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.5);
  z-index: 100;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.modal-overlay.show {
  display: flex;
}

.modal {
  background: #F5F0E1;
  border-radius: 20px;
  width: 100%;
  max-width: 400px;
  max-height: 80vh;
  overflow: hidden;
  box-shadow: 0 8px 32px rgba(0,0,0,0.2);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 20px 12px;
  border-bottom: 1px solid rgba(139, 105, 20, 0.15);
}

.modal-header h3 {
  font-size: 1.1rem;
  color: #3D5A3E;
}

.modal-close {
  background: none;
  border: none;
  font-size: 1.3rem;
  cursor: pointer;
  color: #999;
  padding: 4px;
}

.modal-body {
  padding: 12px 20px 20px;
  overflow-y: auto;
  max-height: calc(80vh - 60px);
}

.rank-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.rank-item {
  display: flex;
  align-items: center;
  padding: 10px 12px;
  border-radius: 10px;
  background: rgba(255,255,255,0.6);
  gap: 12px;
}

.rank-item.top-1 { background: rgba(255, 215, 0, 0.2); }
.rank-item.top-2 { background: rgba(192, 192, 192, 0.2); }
.rank-item.top-3 { background: rgba(205, 127, 50, 0.15); }
.rank-item.is-me { border: 2px solid #D4A853; }

.rank-pos {
  font-weight: 900;
  font-size: 1rem;
  width: 32px;
  text-align: center;
  color: #3D5A3E;
}

.rank-name {
  flex: 1;
  font-size: 0.9rem;
  font-weight: 500;
}

.rank-score {
  font-weight: 800;
  font-size: 1rem;
  color: #8B6914;
}

.rank-unit {
  font-size: 0.7rem;
  color: #AAA;
  margin-left: 2px;
}

.rank-my {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid rgba(139, 105, 20, 0.15);
  font-size: 0.85rem;
  color: #888;
  text-align: center;
}

/* === Score Card === */
.card-section {
  margin-top: 28px;
  text-align: center;
}

#scoreCardCanvas {
  width: 100%;
  max-width: 400px;
  height: auto;
  border-radius: 16px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.1);
}

.card-actions {
  display: flex;
  gap: 10px;
  justify-content: center;
  margin-top: 14px;
}

.btn {
  padding: 12px 24px;
  border: none;
  border-radius: 12px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}

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

.btn-primary {
  background: #3D5A3E;
  color: white;
}

.btn-primary:active {
  background: #2D4A2E;
}

.btn-secondary {
  background: rgba(212, 168, 83, 0.2);
  color: #8B6914;
}

/* === Footer === */
.footer {
  margin-top: 40px;
  text-align: center;
  padding: 20px 0;
  color: #AAA;
  font-size: 0.85rem;
  border-top: 1px solid rgba(139, 105, 20, 0.1);
}

.footer-sm {
  font-size: 0.75rem;
  margin-top: 6px;
  opacity: 0.6;
}

/* === Responsive === */
@media (max-width: 360px) {
  .title { font-size: 1.6rem; }
  .mode-buttons { gap: 6px; }
  .mode-btn { padding: 10px 2px; }
  .mode-emoji { font-size: 1.3rem; }
  .cicada-svg { width: 130px; }
  .cicada-container { width: 140px; height: 200px; }
}

@media (min-width: 481px) {
  #app { padding: 0 24px 40px; }
  .title { font-size: 2.4rem; }
  .play-area { min-height: 380px; }
  .cicada-svg { width: 200px; }
  .cicada-container { width: 220px; height: 270px; }
}

/* Safe area for notch phones */
@supports (padding-top: env(safe-area-inset-top)) {
  .header { padding-top: calc(32px + env(safe-area-inset-top)); }
}