:root {
  --ink: #2e2418;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  height: 100%;
}

body {
  background: #2a1606;
  font-family: "Noto Sans TC", "Microsoft JhengHei", "PingFang TC", sans-serif;
  overflow: hidden;
  -webkit-tap-highlight-color: transparent;
}

#stage {
  position: fixed;
  inset: 0;
}

#game {
  position: absolute;
  inset: 0;
  display: block;
  touch-action: none;
}

/* ---- 覆蓋層(標題 / 過關 / 失敗) ---- */
.overlay {
  position: absolute;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  background: rgba(30, 16, 6, 0.6);
  backdrop-filter: blur(3px);
  padding: 20px;
}
.overlay.show {
  display: flex;
  animation: overlayIn 0.25s ease both;
}

.card {
  position: relative;
  width: min(580px, 94vw);
  max-height: 92vh;
  overflow: auto;
  /* 羊皮紙感:暖白 + 極淡葡萄園色暈 */
  background: radial-gradient(120% 90% at 50% 0%, #fffdf7 0%, #f7efdf 70%, #f1e6cf 100%);
  border-radius: 18px;
  padding: 30px 30px 26px;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.5), inset 0 0 0 2px rgba(200, 163, 90, 0.5),
    inset 0 0 0 6px rgba(255, 255, 255, 0.6);
  text-align: center;
  color: var(--ink);
  animation: cardIn 0.3s cubic-bezier(0.2, 0.9, 0.3, 1.2) both;
}
/* 卡片頂端金色裝飾線 */
.card::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 12px;
  transform: translateX(-50%);
  width: 64px;
  height: 4px;
  border-radius: 3px;
  background: linear-gradient(90deg, transparent, #c8a35a, transparent);
}

.kicker {
  font-size: 14px;
  letter-spacing: 0.18em;
  color: #c08a2a;
  font-weight: 700;
}
.kicker.win {
  color: #2f9e44;
}
.kicker.lose {
  color: #c94b4b;
}

.card h1 {
  font-size: 36px;
  margin: 10px 0 2px;
  font-weight: 800;
  letter-spacing: 0.04em;
  background: linear-gradient(180deg, #8a5a1e, #c0612a);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  text-shadow: 0 1px 0 rgba(255, 255, 255, 0.5);
}
.card h2 {
  font-size: 24px;
  margin: 10px 0 6px;
  line-height: 1.35;
}
.sub {
  color: #7a6a55;
  margin: 0 0 14px;
}
.body {
  color: #4a3c2c;
  line-height: 1.7;
  text-align: left;
  margin: 6px 2px 16px;
}

.verse {
  position: relative;
  text-align: left;
  background: #f3e9d1;
  border-left: 4px solid #c8a35a;
  padding: 14px 16px 14px 18px;
  border-radius: 8px;
  line-height: 1.85;
  font-size: 15px;
  color: #5a4a2a;
  margin: 14px 0;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.6);
}
/* 經文左上角的裝飾引號 */
.verse::before {
  content: "\201C";
  position: absolute;
  left: 6px;
  top: -6px;
  font-size: 34px;
  line-height: 1;
  color: rgba(200, 163, 90, 0.45);
  font-family: Georgia, "Noto Serif TC", serif;
}
.verse .ref {
  display: block;
  font-weight: 700;
  color: #9c7320;
  margin-bottom: 4px;
}

.score {
  font-weight: 700;
  color: #b8860b;
  font-size: 18px;
  margin: 8px 0 14px;
}

.btn {
  appearance: none;
  border: none;
  cursor: pointer;
  background: #c0612a;
  color: #fff;
  font-weight: 700;
  font-size: 18px;
  padding: 13px 22px;
  border-radius: 12px;
  font-family: inherit;
  box-shadow: 0 6px 0 #8f441c;
  transition: transform 0.05s, box-shadow 0.05s;
}
.btn:active {
  transform: translateY(4px);
  box-shadow: 0 2px 0 #8f441c;
}
.btn.ghost {
  background: #e7dcc4;
  color: #6b5a32;
  box-shadow: 0 6px 0 #c9bda0;
}
.btn.ghost:active {
  box-shadow: 0 2px 0 #c9bda0;
}
.btn:disabled {
  background: #cfc7b5;
  color: #8a8270;
  box-shadow: 0 6px 0 #b3ab98;
  cursor: not-allowed;
}

.row {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}
.hint {
  color: #8a7a64;
  font-size: 13px;
  margin-top: 14px;
  line-height: 1.7;
}

/* 右上角圓形圖示按鈕(暫停 / 靜音) */
.icon-btn {
  position: absolute;
  top: 10px;
  z-index: 5;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  border: none;
  cursor: pointer;
  background: rgba(30, 16, 6, 0.5);
  color: #fff;
  font-size: 20px;
  line-height: 1;
  align-items: center;
  justify-content: center;
  -webkit-tap-highlight-color: transparent;
  transition: transform 0.05s, background 0.15s;
}
.icon-btn:hover {
  background: rgba(30, 16, 6, 0.7);
}
.icon-btn:active {
  transform: scale(0.92);
}

/* 靜音鈕:永遠顯示,在暫停鈕左邊 */
.mute-btn {
  right: 64px;
  display: flex;
}
/* 暫停鈕:只在遊戲進行中顯示 */
.pause-btn {
  right: 12px;
  display: none;
}
.pause-btn.show {
  display: flex;
}

/* ---- 手機直向:提示轉成橫向(只在觸控裝置的直向時蓋住畫面)---- */
.rotate-hint {
  display: none;
}
@media (orientation: portrait) and (pointer: coarse) {
  .rotate-hint {
    position: fixed;
    inset: 0;
    z-index: 50;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 18px;
    background: #2a1606;
    color: #ffe9cf;
    text-align: center;
    padding: 24px;
    font-size: 21px;
    line-height: 1.7;
  }
  .rotate-emoji {
    font-size: 72px;
    animation: rotateHint 1.8s ease-in-out infinite;
  }
  .rotate-hint span {
    color: #d4a87f;
    font-size: 15px;
  }
}
@keyframes rotateHint {
  0%,
  100% {
    transform: rotate(-12deg);
  }
  50% {
    transform: rotate(78deg);
  }
}

/* 覆蓋層 / 卡片進場動畫 */
@keyframes overlayIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}
@keyframes cardIn {
  from {
    opacity: 0;
    transform: translateY(14px) scale(0.96);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}
@media (prefers-reduced-motion: reduce) {
  .overlay.show,
  .card {
    animation: none;
  }
}