/**
 * 遊戲介面樣式
 *
 * 2D 繪本圓潤卡通風。2D 繪本圓潤卡通風。2D 繪本圓潤卡通風。
 * 所有可點擊元件最小感應範圍不得小於 64x64 px，
 * 適應小一學童手指小肌肉發展階段。
 */

/* ── 載入畫面 ────────────────────────────────────────────── */

.loading-screen {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  color: var(--color-ink);
  font-size: 1.2rem;
}

.loading-mascot {
  width: 96px;
  height: 96px;
  border-radius: 50%;
  background: var(--color-sun);
  animation: float-y 1.6s ease-in-out infinite;
}

.fatal-error {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: var(--color-ink);
}

/* ── 地圖畫面 ────────────────────────────────────────────── */

.map-screen {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  padding: max(16px, env(safe-area-inset-top)) 16px max(16px, env(safe-area-inset-bottom));
  background: linear-gradient(180deg, var(--color-sky) 0%, #d9f2e4 100%);
  overflow-y: auto;
}

.map-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
}

.map-title {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.map-title .title-main {
  font-family: var(--font-hanzi);
  font-size: clamp(1.6rem, 6vw, 2.4rem);
  color: var(--color-ink);
}

.map-title .title-sub {
  font-family: var(--font-hanzi);
  font-size: clamp(0.9rem, 3.4vw, 1.2rem);
  color: var(--color-ink-soft);
}

.icon-button {
  min-width: var(--touch-min);
  min-height: var(--touch-min);
  font-size: 1.6rem;
  background: var(--color-card);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.island-list {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding-bottom: 8px;
}

.island-card {
  position: relative;
  display: flex;
  align-items: center;
  gap: 14px;
  min-height: 96px;
  padding: 14px 18px;
  text-align: left;
  background: var(--color-card);
  border-radius: var(--radius-card);
  border-left: 8px solid var(--island-color, var(--color-accent));
  box-shadow: 0 5px 0 rgba(61, 50, 38, 0.12);
  flex-direction: row;
}

.island-card:not(.is-locked):hover {
  transform: translateX(4px);
}

.island-card.is-locked {
  opacity: 0.55;
  cursor: not-allowed;
  filter: grayscale(0.5);
}

.island-mascot {
  flex: 0 0 auto;
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background-size: cover;
  background-position: center;
  background-color: var(--island-color, var(--color-sun));
}

.island-name {
  font-family: var(--font-hanzi);
  font-size: 1.35rem;
  color: var(--color-ink);
}

.island-description {
  font-size: 0.85rem;
  color: var(--color-ink-soft);
  margin-top: 2px;
}

.island-codes {
  position: absolute;
  top: 10px;
  right: 14px;
  font-size: 0.7rem;
  color: var(--color-ink-soft);
  background: rgba(255, 255, 255, 0.7);
  padding: 2px 8px;
  border-radius: 999px;
}

.map-footer {
  padding-top: 12px;
  font-size: 0.75rem;
  color: var(--color-ink-soft);
  text-align: center;
  line-height: 1.6;
}

.map-footer p {
  margin: 2px 0;
}

/* ── 關卡通用版面 ────────────────────────────────────────── */

.level-screen {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  padding: max(12px, env(safe-area-inset-top)) 12px max(12px, env(safe-area-inset-bottom));
  background: linear-gradient(180deg, #fffaf0 0%, #f2f7ec 100%);
  overflow: hidden;
}

/*
 * 關卡頂部列
 *
 * 左側為「回地圖」返回按鈕，中間為關卡標題。
 * 頂部列固定高度，避免各關卡內容區高度不一致造成切換時版面跳動。
 */
.level-topbar {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: var(--touch-min);
  margin-bottom: 8px;
  flex: 0 0 auto;
}

.level-back-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 18px;
  background: var(--color-card);
  color: var(--color-ink);
  font-family: var(--font-hanzi);
  font-size: 1rem;
  line-height: 1.3;
}

.level-back-btn > ruby {
  line-height: 1.3;
}

.level-title {
  flex: 1;
  text-align: center;
  font-family: var(--font-hanzi);
  font-size: 1.15rem;
  color: var(--color-ink-soft);
  line-height: 1.5;
}

.level-tabs {
  display: flex;
  gap: 10px;
  justify-content: center;
  margin-bottom: 10px;
}

.level-tab {
  min-height: 52px;
  padding: 0 22px;
  background: var(--color-card);
  color: var(--color-ink-soft);
}

.level-tab.is-active {
  background: var(--color-accent);
  color: #fff;
}

.level-content {
  flex: 1;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow-y: auto;
}

/* ── 拼音果園 ────────────────────────────────────────────── */

.listen-screen {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  width: 100%;
  padding: 10px 0;
}

.listen-header {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: center;
}

.fruit-tree {
  position: relative;
  width: 90px;
  height: 90px;
}

.tree-leaves {
  position: absolute;
  inset: 0 0 26px 0;
  border-radius: 50% 50% 45% 45%;
  background: var(--color-grass);
}

.tree-trunk {
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 18px;
  height: 30px;
  border-radius: 6px;
  background: #b98a5e;
}

.listen-prompt {
  font-size: 1.2rem;
}

.replay-btn {
  min-width: var(--touch-min);
  min-height: var(--touch-min);
  border-radius: 50%;
  font-size: 1.1rem;
  background: var(--color-sun);
}

.fruit-row {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
  justify-content: center;
}

.fruit-option {
  width: 96px;
  height: 96px;
  border-radius: 50% 50% 46% 46%;
  background: var(--color-coral);
  box-shadow: 0 6px 0 rgba(61, 50, 38, 0.18);
  display: flex;
  align-items: center;
  justify-content: center;
  animation: float-y 2.4s ease-in-out infinite;
}

.fruit-option:nth-child(2) { animation-delay: 0.2s; background: #ffcf8f; }
.fruit-option:nth-child(3) { animation-delay: 0.4s; background: #9fd9ef; }
.fruit-option:nth-child(4) { animation-delay: 0.6s; background: #b8e6a0; }

.fruit-zhuyin {
  font-family: var(--font-zhuyin);
  font-size: 2.2rem;
  color: var(--color-ink);
}

.fruit-option.is-correct {
  animation: pop-in 0.4s ease;
  background: var(--color-correct);
}

.fruit-option.is-wrong {
  animation: shake 0.5s ease;
}

/* 拼讀合成台 */

.blend-screen {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;
  width: 100%;
  padding: 10px 0;
}

.blend-target {
  display: flex;
  align-items: center;
  gap: 14px;
}

.blend-image {
  width: 84px;
  height: 84px;
  object-fit: contain;
  background: #fff;
  border-radius: 20px;
  padding: 6px;
}

.blend-label {
  font-family: var(--font-hanzi);
  font-size: 2rem;
}

.blend-basket {
  position: relative;
  width: min(92%, 420px);
  min-height: 120px;
  display: flex;
  flex-wrap: wrap;
  align-content: flex-start;
  align-items: flex-start;
  gap: 6px;
  padding: 18px 20px 26px;
  transition: transform 0.15s ease;
}

.basket-lip {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 16px;
  border-radius: 999px;
  background: #c58b52;
}

.basket-body {
  position: absolute;
  inset: 8px 0 0 0;
  border-radius: 18px 18px 40px 40px;
  background: #e0a869;
  z-index: -1;
}

.blend-basket.is-target {
  transform: scale(1.04);
}

.blend-basket.is-target .basket-body {
  background: var(--color-sun);
}

.blend-placed-chip {
  width: 46px;
  height: 46px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  background: var(--color-card);
  font-family: var(--font-zhuyin);
  font-size: 1.6rem;
  box-shadow: 0 2px 0 rgba(61, 50, 38, 0.15);
  animation: pop-in 0.3s ease;
}

.blend-track {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  padding: 14px;
  background: rgba(255, 255, 255, 0.6);
  border-radius: var(--radius-card);
}

.blend-chip {
  width: 64px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 16px;
  background: var(--color-lilac);
  font-family: var(--font-zhuyin);
  font-size: 1.8rem;
  color: var(--color-ink);
  box-shadow: 0 4px 0 rgba(61, 50, 38, 0.15);
  cursor: grab;
  touch-action: none;
  transition: transform 0.12s ease;
}

.blend-chip.is-dragging {
  opacity: 0.35;
}

.blend-chip.is-placed {
  opacity: 0.3;
  pointer-events: none;
}

.blend-chip.is-wrong {
  animation: shake 0.5s ease;
}

.blend-chip-ghost {
  position: fixed;
  z-index: 999;
  pointer-events: none;
  transform: translate(-50%, -50%) scale(1.1);
  box-shadow: 0 8px 18px rgba(61, 50, 38, 0.25);
}

/* ── 漢字積木屋 ──────────────────────────────────────────── */

.pictograph-screen,
.radical-screen {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  width: 100%;
  padding: 10px 0;
}

.evolution-stage {
  position: relative;
  width: min(80vw, 280px);
  height: min(80vw, 280px);
  display: flex;
  align-items: center;
  justify-content: center;
}

.evolution-image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  transition: opacity 0.5s ease, filter 0.5s ease;
}

.evolution-image.is-object {
  opacity: 1;
  filter: none;
}

.evolution-image.is-object.is-morphing {
  filter: contrast(2.4) brightness(0.55);
  opacity: 0.75;
}

.evolution-image.is-object.is-hidden {
  opacity: 0;
}

.evolution-image.is-oracle {
  opacity: 0;
  filter: contrast(2.6);
}

.evolution-image.is-oracle.is-visible {
  opacity: 0.9;
}

.evolution-image.is-oracle.is-fading {
  opacity: 0;
}

.evolution-character {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-hanzi);
  font-size: min(38vw, 130px);
  opacity: 0;
  transform: scale(0.7);
  transition: opacity 0.4s ease, transform 0.4s ease;
}

.evolution-character.is-visible {
  opacity: 1;
  transform: scale(1);
}

.evolution-hint {
  font-size: 0.95rem;
  color: var(--color-ink-soft);
}

.pictograph-info {
  display: flex;
  gap: 10px;
}

.info-chip {
  padding: 6px 14px;
  border-radius: 999px;
  background: var(--color-card);
  font-size: 0.85rem;
}

.radical-prompt {
  font-size: 1.05rem;
  text-align: center;
}

.radical-bench {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
  justify-content: center;
}

.radical-block {
  width: 92px;
  height: 92px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 18px;
  font-family: var(--font-hanzi);
  font-size: 2.4rem;
  background: var(--color-card);
  box-shadow: 0 5px 0 rgba(61, 50, 38, 0.15);
}

.radical-block.is-fixed {
  background: var(--color-sun);
}

.radical-block.is-candidate {
  background: var(--color-lilac);
}

.radical-candidates {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
}

.radical-result {
  display: none;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 16px;
  background: var(--color-card);
  border-radius: var(--radius-card);
  animation: bounce-in 0.4s ease;
}

.radical-result.is-visible {
  display: flex;
}

.radical-image {
  width: 76px;
  height: 76px;
  object-fit: contain;
}

.radical-word {
  font-family: var(--font-hanzi);
  font-size: 2.2rem;
}

.radical-meaning {
  font-size: 0.95rem;
  color: var(--color-ink-soft);
}

/* ── 筆順小畫家 ──────────────────────────────────────────── */

.stroke-screen-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  width: 100%;
  height: 100%;
  padding: 8px 0;
}

.stroke-header {
  display: flex;
  align-items: center;
  gap: 18px;
}

.stroke-title {
  font-family: var(--font-hanzi);
  font-size: 2.4rem;
}

.stroke-word {
  font-size: 1.1rem;
}

.stroke-progress {
  padding: 6px 14px;
  border-radius: 999px;
  background: var(--color-card);
  font-size: 0.9rem;
}

.stroke-canvas-wrap {
  flex: 1;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 0;
}

.stroke-canvas {
  border-radius: 18px;
  background: #fff;
  box-shadow: 0 4px 0 rgba(61, 50, 38, 0.12);
  touch-action: none;
  cursor: crosshair;
}

.stroke-canvas.is-shaking {
  animation: shake 0.5s ease;
}

.stroke-hint {
  font-size: 0.95rem;
  color: var(--color-ink-soft);
}

/* ── 故事音樂盒 ──────────────────────────────────────────── */

.poem-screen {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 8px 0;
}

.poem-title {
  font-family: var(--font-hanzi);
  font-size: 1.6rem;
}

.poem-illustration {
  width: min(46vw, 180px);
  height: min(46vw, 180px);
  object-fit: contain;
}

.poem-lines {
  display: flex;
  flex-direction: column;
  gap: 8px;
  width: 100%;
  max-width: 560px;
}

.poem-line {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 12px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.75);
  cursor: pointer;
  transition: background 0.2s ease, transform 0.2s ease;
}

.poem-line.is-active {
  background: var(--color-sun);
  transform: scale(1.02);
}

.poem-line-image {
  width: 48px;
  height: 48px;
  object-fit: contain;
  flex: 0 0 auto;
}

.poem-line-text {
  font-size: 1.25rem;
}

.poem-char {
  transition: transform 0.18s ease;
}

.poem-char.is-speaking {
  transform: scale(1.35);
  color: var(--color-accent);
}

.poem-controls {
  display: flex;
  gap: 12px;
}

.poem-play-all {
  background: var(--color-correct);
  color: #fff;
}

.poem-stop {
  background: var(--color-card);
}

/* 問答 */

.quiz-screen {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  width: 100%;
  padding: 12px 0;
}

.quiz-question {
  font-size: 1.4rem;
  text-align: center;
  cursor: pointer;
  padding: 10px 18px;
  border-radius: var(--radius-card);
  background: var(--color-card);
}

.quiz-options {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: center;
}

.quiz-option {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  width: 140px;
  min-height: 140px;
  padding: 12px;
  background: var(--color-card);
  border-radius: var(--radius-card);
}

.quiz-option-image {
  width: 84px;
  height: 84px;
  object-fit: contain;
}

.quiz-option-text {
  font-family: var(--font-hanzi);
  font-size: 1.2rem;
}

.quiz-option.is-correct {
  background: var(--color-correct);
  animation: pop-in 0.35s ease;
}

.quiz-option.is-wrong {
  background: var(--color-wrong);
  animation: shake 0.5s ease;
}

/* ── 完成畫面 ────────────────────────────────────────────── */

.level-complete {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  animation: pop-in 0.5s ease;
}

.complete-mascot {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: var(--color-sun);
  animation: float-y 1.4s ease-in-out infinite;
}

.complete-text {
  font-family: var(--font-hanzi);
  font-size: 2.2rem;
}

/* ── 回饋氣泡 ────────────────────────────────────────────── */

.feedback-bubble {
  position: absolute;
  top: 12px;
  left: 50%;
  transform: translateX(-50%);
  padding: 10px 24px;
  border-radius: 999px;
  font-size: 1.1rem;
  font-weight: 700;
  color: #fff;
  animation: pop-in 0.3s ease;
  z-index: 10;
}

.feedback-bubble.is-correct {
  background: var(--color-correct);
}

.feedback-bubble.is-soft {
  background: var(--color-coral);
}

/* ── 設定選單 ────────────────────────────────────────────── */

.settings-overlay {
  position: absolute;
  inset: 0;
  background: rgba(61, 50, 38, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
}

.settings-panel {
  width: min(88vw, 380px);
  padding: 24px;
  border-radius: var(--radius-card);
  background: var(--color-card);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.settings-title {
  font-family: var(--font-hanzi);
  font-size: 1.5rem;
  text-align: center;
}

.settings-label {
  font-family: var(--font-hanzi);
  font-size: 1.1rem;
  margin-top: 8px;
}

.settings-panel input[type="range"] {
  width: 100%;
  height: 40px;
  accent-color: var(--color-accent);
}

.settings-back {
  margin-top: 12px;
  background: var(--color-accent);
  color: #fff;
}

/* ── 響應式 ──────────────────────────────────────────────── */

@media (max-width: 420px) {
  .fruit-option {
    width: 76px;
    height: 76px;
  }

  .fruit-zhuyin {
    font-size: 1.8rem;
  }

  .island-card {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .poem-line-text {
    font-size: 1.05rem;
  }
}

@media (min-width: 900px) {
  .island-list {
    max-width: 720px;
    margin: 0 auto;
    width: 100%;
  }

  .level-content {
    max-width: 900px;
    margin: 0 auto;
    width: 100%;
  }
}