/* ============================================================
   style.css
   ゲーム全体のスタイル。スマホ最優先のミニマルデザイン。
   ============================================================ */

/* ---- CSS カスタムプロパティ（デザイントークン） ---- */
:root {
  --color-bg:          #0f0f14;
  --color-surface:     #1a1a24;
  --color-primary:     #4ecca3;
  --color-primary-dk:  #2ea882;
  --color-accent:      #ff6b6b;
  --color-text:        #e8e8f0;
  --color-text-dim:    #888899;
  --color-border:      #2a2a38;
  --radius:            12px;
  --transition:        0.2s ease;
}

/* ---- リセット ---- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  font-family: -apple-system, BlinkMacSystemFont, 'Hiragino Sans', 'Noto Sans JP', sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  /* タップ時のハイライトを無効化 */
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}

/* ============================================================
   画面管理: .screen + .active クラスで切り替え
   ============================================================ */
.screen {
  position: fixed;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
  padding: 16px;
}

.screen.active {
  opacity: 1;
  pointer-events: auto;
}

/* ============================================================
   ローディング画面
   ============================================================ */
.loading-content {
  text-align: center;
  width: 80%;
  max-width: 320px;
}

.loading-bar-wrap {
  width: 100%;
  height: 6px;
  background: var(--color-surface);
  border-radius: 3px;
  margin: 28px 0 14px;
  overflow: hidden;
}

.loading-bar {
  height: 100%;
  width: 0%;
  background: var(--color-primary);
  border-radius: 3px;
  transition: width 0.4s ease;
}

.loading-text {
  color: var(--color-text-dim);
  font-size: 13px;
}

/* ============================================================
   タイトル画面
   ============================================================ */
.title-content {
  width: 90%;
  max-width: 400px;
  text-align: center;
}

.title {
  font-size: 44px;
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1;
  letter-spacing: -1px;
}

.subtitle {
  font-size: 18px;
  color: var(--color-text-dim);
  margin-top: 6px;
  margin-bottom: 40px;
}

.section {
  margin-bottom: 24px;
  text-align: center;
}

.section-label {
  font-size: 12px;
  color: var(--color-text-dim);
  text-transform: uppercase;
  letter-spacing: 0.8px;
  margin-bottom: 10px;
}

.hint-text {
  font-size: 12px;
  color: var(--color-text-dim);
  margin-top: 20px;
}

/* ============================================================
   ボタン共通
   ============================================================ */
.btn-group {
  display: flex;
  gap: 8px;
  justify-content: center;
}

.btn {
  padding: 12px 20px;
  border: 2px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text);
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  -webkit-user-select: none;
  user-select: none;
  line-height: 1.2;
}

.btn:active {
  transform: scale(0.95);
  opacity: 0.85;
}

/* 選択中・フォーカス状態 */
.btn.active {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: rgba(78, 204, 163, 0.1);
}

/* プライマリボタン（スタート等） */
.btn-primary {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #0f0f14;
  width: 100%;
  padding: 16px;
  font-size: 17px;
  margin-top: 16px;
}

.btn-primary:active {
  background: var(--color-primary-dk);
  border-color: var(--color-primary-dk);
}

/* アウトラインボタン */
.btn-outline {
  background: transparent;
  border-color: var(--color-border);
  color: var(--color-text-dim);
}

/* 小さいボタン */
.btn-small {
  padding: 8px 14px;
  font-size: 13px;
}

/* ============================================================
   ゲーム画面レイアウト
   ============================================================ */

/* ゲーム画面は上から並べる（flex column） */
#screen-game {
  justify-content: flex-start;
  background: #000;
  padding: 0;
}

/* ---- ヘッダー ---- */
.game-header {
  width: 100%;
  padding: 10px 16px 8px;
  background: rgba(0, 0, 0, 0.85);
  flex-shrink: 0;
  z-index: 10;
}

.game-info-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 4px;
}

.game-mode-label {
  font-size: 11px;
  color: var(--color-text-dim);
  text-transform: uppercase;
  letter-spacing: 0.6px;
}

/* タイマー表示 */
.game-timer {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-primary);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.5px;
}

/* タイマー警告（残り20秒以下） */
.game-timer.warning {
  color: var(--color-accent);
  animation: timerPulse 0.8s ease infinite;
}

@keyframes timerPulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.4; }
}

.game-quest-row {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.quest-prefix {
  font-size: 13px;
  color: var(--color-text-dim);
  flex-shrink: 0;
}

.quest-name {
  font-size: 30px;
  font-weight: 800;
  color: var(--color-text);
  line-height: 1.2;
  /* 文字が溢れた場合は省略 */
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ---- カメラ + Canvas エリア ---- */
.camera-container {
  position: relative;
  width: 100%;
  flex: 1;         /* 残りの高さをすべて使う */
  overflow: hidden;
  background: #000;
  min-height: 0;   /* flex 子要素が縮まるようにする */
}

#camera-video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

#detection-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  /* Canvas 自体は pointer-events を受け取らない */
  pointer-events: none;
}

/* ---- 認識進捗バー（カメラ上に重ねる） ---- */
.progress-overlay {
  position: absolute;
  bottom: 16px;
  left: 16px;
  right: 16px;
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-radius: 20px;
  padding: 8px 14px;
  z-index: 5;
}

.progress-overlay.hidden { display: none; }

.progress-track {
  flex: 1;
  height: 8px;
  background: rgba(255, 255, 255, 0.15);
  border-radius: 4px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  width: 0%;
  background: var(--color-primary);
  border-radius: 4px;
  transition: width 0.1s linear;
}

.progress-label {
  font-size: 12px;
  color: #fff;
  white-space: nowrap;
  min-width: 70px;
  text-align: right;
}

/* ---- フッター ---- */
.game-footer {
  width: 100%;
  padding: 8px 16px;
  background: rgba(0, 0, 0, 0.85);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-shrink: 0;
  z-index: 10;
}

.score-area {
  display: flex;
  align-items: baseline;
  gap: 4px;
}

.score-area.hidden { visibility: hidden; }

.score-label {
  font-size: 12px;
  color: var(--color-text-dim);
}

.score-count {
  font-size: 28px;
  font-weight: 700;
  color: var(--color-primary);
  font-variant-numeric: tabular-nums;
}

.score-unit {
  font-size: 13px;
  color: var(--color-text-dim);
}

/* ---- クリア演出オーバーレイ ---- */
.clear-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.55);
  z-index: 20;
}

.clear-overlay.hidden { display: none; }

.clear-badge {
  text-align: center;
  animation: clearPop 0.45s cubic-bezier(0.175, 0.885, 0.32, 1.3) both;
}

@keyframes clearPop {
  0%   { transform: scale(0.4); opacity: 0; }
  100% { transform: scale(1);   opacity: 1; }
}

.clear-check {
  font-size: 72px;
  color: var(--color-primary);
  line-height: 1;
  /* テキストとして表示し、絵文字と混同しない */
  font-weight: 900;
}

.clear-word {
  font-size: 30px;
  font-weight: 800;
  color: #fff;
  margin-top: 10px;
  text-shadow: 0 2px 8px rgba(0,0,0,0.6);
}

/* ============================================================
   結果画面
   ============================================================ */
.result-content {
  width: 90%;
  max-width: 400px;
  text-align: center;
}

.result-title {
  font-size: 38px;
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: 28px;
}

.result-stats {
  background: var(--color-surface);
  border-radius: var(--radius);
  padding: 20px 24px;
  margin-bottom: 28px;
  text-align: left;
}

.result-stat {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 0;
}

.result-stat + .result-stat {
  border-top: 1px solid var(--color-border);
}

.result-stat-label {
  color: var(--color-text-dim);
  font-size: 14px;
}

.result-stat-value {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-text);
  font-variant-numeric: tabular-nums;
}

.result-btn-group {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

/* ============================================================
   カメラエラー画面
   ============================================================ */
.error-content {
  width: 85%;
  max-width: 360px;
  text-align: center;
}

.error-icon {
  font-size: 64px;
  margin-bottom: 20px;
}

.error-title {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 12px;
}

.error-message {
  color: var(--color-text-dim);
  font-size: 14px;
  line-height: 1.7;
  margin-bottom: 28px;
  white-space: pre-line; /* 改行コードを反映する */
}

/* ============================================================
   ユーティリティ
   ============================================================ */
.hidden {
  display: none !important;
}