/* ============================================================
   动物配对游戏 - Animal Matching Game Styles
   ============================================================ */

/* ---- Page Container -------------------------------------- */
.am-page {
  min-height: calc(100vh - 40px);
  background: linear-gradient(135deg, #ffd6e7 0%, #c2e9fb 50%, #d4f8c4 100%);
  padding: 20px 16px 40px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

/* ---- Header ---------------------------------------------- */
.am-header {
  text-align: center;
  margin-bottom: 20px;
  padding-top: 16px;
}

.am-header h1 {
  font-size: 2.2rem;
  font-weight: 800;
  color: #fff;
  text-shadow: 0 3px 12px rgba(0, 0, 0, 0.25);
  margin: 0 0 8px;
  font-family: 'Comic Sans MS', '楷体', cursive;
}

.am-header p {
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.95);
  margin: 0;
  font-family: 'Comic Sans MS', '楷体', cursive;
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.15);
}

/* ---- Difficulty Selection --------------------------------- */
.am-difficulty {
  display: flex;
  gap: 12px;
  margin-bottom: 20px;
  flex-wrap: wrap;
  justify-content: center;
}

.am-diff-btn {
  padding: 10px 24px;
  border: 3px solid rgba(255, 255, 255, 0.6);
  border-radius: 30px;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.25s ease;
  font-family: 'Comic Sans MS', '楷体', cursive;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.12);
  background: rgba(255, 255, 255, 0.65);
  color: #666;
}

.am-diff-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.18);
  border-color: rgba(255, 255, 255, 0.9);
  background: rgba(255, 255, 255, 0.85);
}

.am-diff-btn.active {
  background: #fff;
  border-color: transparent;
  transform: translateY(-2px);
}

.am-diff-btn[data-mode="easy"].active {
  color: #2ed573;
  box-shadow: 0 6px 20px rgba(46, 213, 115, 0.4);
}

.am-diff-btn[data-mode="normal"].active {
  color: #ffa502;
  box-shadow: 0 6px 20px rgba(255, 165, 2, 0.4);
}

.am-diff-btn[data-mode="hard"].active {
  color: #ff4757;
  box-shadow: 0 6px 20px rgba(255, 71, 87, 0.4);
}

/* ---- Stats Bar ------------------------------------------- */
.am-stats {
  display: flex;
  gap: 14px;
  margin-bottom: 18px;
  flex-wrap: wrap;
  justify-content: center;
}

.am-stat {
  background: rgba(255, 255, 255, 0.88);
  border-radius: 24px;
  padding: 9px 22px;
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: 'Comic Sans MS', '楷体', cursive;
  font-size: 15px;
  font-weight: 600;
  color: #555;
  box-shadow: 0 3px 12px rgba(0, 0, 0, 0.1);
  min-width: 110px;
  justify-content: center;
}

.am-stat .stat-icon {
  font-size: 20px;
}

.am-stat .stat-value {
  font-size: 17px;
  font-weight: 800;
  color: #333;
}

/* ---- Game Board Wrapper ---------------------------------- */
.am-board-wrap {
  background: rgba(255, 255, 255, 0.3);
  border-radius: 28px;
  padding: 22px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow:
    0 8px 32px rgba(0, 0, 0, 0.12),
    inset 0 1px 0 rgba(255, 255, 255, 0.5);
  margin-bottom: 20px;
  min-height: 240px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  overflow-x: auto;
}

/* ---- Start Overlay --------------------------------------- */
.am-start-overlay {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  padding: 20px;
}

.am-start-overlay .start-emoji {
  font-size: 80px;
  animation: am-bounce 1.6s ease-in-out infinite;
  display: block;
}

@keyframes am-bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-16px); }
}

.am-start-hint {
  font-family: 'Comic Sans MS', '楷体', cursive;
  color: rgba(255, 255, 255, 0.95);
  font-size: 16px;
  margin: 0;
  text-align: center;
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.2);
}

.am-start-btn {
  background: linear-gradient(135deg, #ff6b9d, #ff9a9e);
  color: #fff;
  border: none;
  border-radius: 32px;
  padding: 14px 44px;
  font-size: 18px;
  font-weight: 800;
  cursor: pointer;
  font-family: 'Comic Sans MS', '楷体', cursive;
  box-shadow: 0 6px 22px rgba(255, 107, 157, 0.45);
  transition: all 0.25s ease;
  letter-spacing: 0.5px;
}

.am-start-btn:hover {
  transform: translateY(-3px) scale(1.05);
  box-shadow: 0 12px 30px rgba(255, 107, 157, 0.55);
}

.am-start-btn:active {
  transform: translateY(-1px) scale(1.02);
}

/* ---- Game Board (card grid) ------------------------------ */
.am-board {
  display: grid;
  gap: 10px;
  justify-content: center;
  align-content: start;
}

/* ---- Cards ----------------------------------------------- */
.am-card {
  width: var(--am-card-size, 100px);
  height: var(--am-card-size, 100px);
  cursor: pointer;
  perspective: 700px;
  position: relative;
  flex-shrink: 0;
}

.am-card-inner {
  width: 100%;
  height: 100%;
  position: relative;
  transform-style: preserve-3d;
  transition: transform 0.45s cubic-bezier(0.4, 0, 0.2, 1);
  border-radius: 18px;
}

.am-card.flipped .am-card-inner,
.am-card.matched .am-card-inner {
  transform: rotateY(180deg);
}

.am-card-front,
.am-card-back {
  position: absolute;
  width: 100%;
  height: 100%;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  border-radius: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  user-select: none;
}

/* Card front = face-down view */
.am-card-front {
  background: linear-gradient(135deg, #a18cd1 0%, #fbc2eb 100%);
  box-shadow:
    0 6px 16px rgba(0, 0, 0, 0.18),
    inset 0 1px 0 rgba(255, 255, 255, 0.4);
  font-size: 38px;
  color: rgba(255, 255, 255, 0.9);
}

/* Card back = face-up view with emoji */
.am-card-back {
  background: #fff;
  transform: rotateY(180deg);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.12);
  font-size: var(--am-emoji-size, 52px);
}

/* Matched card back */
.am-card.matched .am-card-back {
  background: linear-gradient(135deg, #d4f8e8, #a8f0c8);
  box-shadow: 0 6px 18px rgba(46, 213, 115, 0.3);
}

/* Hover on unflipped card */
.am-card:not(.matched):not(.flipped):hover .am-card-inner {
  transform: scale(1.06) translateY(-3px);
  transition: transform 0.2s ease;
}

/* Wrong match shake */
@keyframes am-shake {
  0%, 100% { transform: rotateY(180deg) translateX(0); }
  20%       { transform: rotateY(180deg) translateX(-7px); }
  40%       { transform: rotateY(180deg) translateX(7px); }
  60%       { transform: rotateY(180deg) translateX(-5px); }
  80%       { transform: rotateY(180deg) translateX(5px); }
}

.am-card.wrong .am-card-inner {
  animation: am-shake 0.45s ease;
}

/* Matched bounce */
@keyframes am-matched-bounce {
  0%   { transform: rotateY(180deg) scale(1); }
  40%  { transform: rotateY(180deg) scale(1.15); }
  70%  { transform: rotateY(180deg) scale(0.95); }
  100% { transform: rotateY(180deg) scale(1); }
}

.am-card.matched .am-card-inner {
  animation: am-matched-bounce 0.45s ease forwards;
}

/* ---- Best Records ---------------------------------------- */
.am-best-records {
  background: rgba(255, 255, 255, 0.75);
  border-radius: 22px;
  padding: 18px 26px;
  width: 100%;
  max-width: 500px;
  box-sizing: border-box;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
}

.am-best-records h3 {
  font-family: 'Comic Sans MS', '楷体', cursive;
  color: #555;
  margin: 0 0 14px;
  font-size: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.am-best-records h3 i {
  color: #ffa502;
}

.am-record-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 0;
  border-bottom: 1px solid rgba(0, 0, 0, 0.07);
  font-family: 'Comic Sans MS', '楷体', cursive;
  font-size: 14px;
  color: #666;
}

.am-record-row:last-child {
  border-bottom: none;
}

.am-record-value {
  font-weight: 700;
  color: #ff6b9d;
}

/* ---- Win Modal ------------------------------------------- */
.am-win-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2000;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.am-win-overlay.show {
  opacity: 1;
  pointer-events: all;
}

.am-win-modal {
  background: #fff;
  border-radius: 32px;
  padding: 36px 40px;
  text-align: center;
  max-width: 400px;
  width: 90%;
  box-shadow:
    0 24px 60px rgba(0, 0, 0, 0.25),
    0 0 0 1px rgba(255, 255, 255, 0.2);
  transform: scale(0.75) translateY(20px);
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
  font-family: 'Comic Sans MS', '楷体', cursive;
}

.am-win-overlay.show .am-win-modal {
  transform: scale(1) translateY(0);
}

.am-win-emoji {
  font-size: 72px;
  display: block;
  margin-bottom: 6px;
  animation: am-bounce 1.8s ease-in-out infinite;
}

.am-win-title {
  font-size: 28px;
  font-weight: 800;
  color: #ff6b9d;
  margin: 0 0 4px;
}

.am-win-subtitle {
  font-size: 14px;
  color: #aaa;
  margin: 0 0 18px;
}

.am-win-stars {
  font-size: 38px;
  margin-bottom: 14px;
  letter-spacing: 4px;
}

.am-new-record {
  background: linear-gradient(135deg, #ffd700, #ffb347);
  color: #fff;
  border-radius: 20px;
  padding: 6px 18px;
  font-size: 14px;
  font-weight: 700;
  display: none;
  margin-bottom: 16px;
}

.am-new-record.show {
  display: inline-block;
}

.am-win-stats {
  display: flex;
  justify-content: center;
  gap: 28px;
  margin-bottom: 22px;
  flex-wrap: wrap;
}

.am-win-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
}

.am-win-stat .w-icon  { font-size: 26px; }
.am-win-stat .w-value { font-size: 22px; font-weight: 800; color: #333; }
.am-win-stat .w-label { font-size: 12px; color: #aaa; }

.am-win-buttons {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

.am-win-btn {
  padding: 12px 26px;
  border: none;
  border-radius: 26px;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  font-family: 'Comic Sans MS', '楷体', cursive;
  transition: all 0.22s ease;
}

.am-win-btn.primary {
  background: linear-gradient(135deg, #ff6b9d, #ff9a9e);
  color: #fff;
  box-shadow: 0 5px 18px rgba(255, 107, 157, 0.42);
}

.am-win-btn.secondary {
  background: #f2f2f2;
  color: #777;
}

.am-win-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 22px rgba(0, 0, 0, 0.18);
}

.am-win-btn.primary:hover {
  box-shadow: 0 8px 24px rgba(255, 107, 157, 0.55);
}

/* ---- Responsive ------------------------------------------ */
@media (max-width: 600px) {
  .am-header h1 {
    font-size: 1.7rem;
  }

  .am-board-wrap {
    padding: 14px;
    border-radius: 20px;
  }

  .am-board {
    gap: 8px;
  }

  .am-best-records {
    padding: 14px 18px;
  }

  .am-win-modal {
    padding: 28px 22px;
    border-radius: 24px;
  }

  .am-win-title {
    font-size: 22px;
  }

  .am-win-emoji {
    font-size: 56px;
  }

  .am-diff-btn {
    padding: 8px 18px;
    font-size: 14px;
  }
}

@media (max-width: 360px) {
  .am-stat {
    padding: 7px 14px;
    min-width: 90px;
    font-size: 13px;
  }

  .am-stat .stat-value {
    font-size: 15px;
  }
}