/* ========================================
   EnglishPro - 英会話練習アプリ スタイル
   ======================================== */

:root {
  --primary: #6C63FF;
  --primary-light: #8B85FF;
  --primary-dark: #4F46E5;
  --secondary: #FF6584;
  --accent: #43D9AD;
  --accent2: #FFB547;
  --bg: #0F0E17;
  --bg2: #1A1929;
  --bg3: #242337;
  --card: #1E1D2E;
  --card2: #272640;
  --border: rgba(255,255,255,0.08);
  --text: #F0EFF8;
  --text-secondary: #9D9BB5;
  --text-muted: #6B698A;
  --success: #43D9AD;
  --warning: #FFB547;
  --error: #FF6584;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 8px 32px rgba(0,0,0,0.4);
  --shadow-sm: 0 4px 16px rgba(0,0,0,0.25);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', 'Noto Sans JP', sans-serif;
  background: var(--bg);
  color: var(--text);
  max-width: 480px;
  margin: 0 auto;
  position: relative;
  overflow-x: hidden;
  background-image:
    radial-gradient(ellipse at 20% 0%, rgba(108,99,255,0.15) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 100%, rgba(67,217,173,0.08) 0%, transparent 50%);
}

/* ======= ヘッダー ======= */
.app-header {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  background: rgba(15,14,23,0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}

.header-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 800;
  font-size: 18px;
  color: var(--primary-light);
  letter-spacing: -0.5px;
}

.logo i { color: var(--primary); font-size: 20px; }

.header-right {
  display: flex;
  align-items: center;
  gap: 10px;
}

.streak-badge {
  display: flex;
  align-items: center;
  gap: 4px;
  background: rgba(255,181,71,0.15);
  border: 1px solid rgba(255,181,71,0.3);
  border-radius: 20px;
  padding: 5px 10px;
  font-size: 13px;
  font-weight: 600;
  color: var(--warning);
}

.streak-badge i { font-size: 12px; }

.xp-display {
  display: flex;
  align-items: center;
  gap: 4px;
  background: rgba(108,99,255,0.15);
  border: 1px solid rgba(108,99,255,0.3);
  border-radius: 20px;
  padding: 5px 10px;
  font-size: 13px;
  font-weight: 600;
  color: var(--primary-light);
}

.xp-display i { font-size: 11px; color: var(--warning); }

.btn-icon {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text);
  font-size: 14px;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-icon:hover { background: var(--card2); }

/* ======= メインコンテンツ ======= */
.app-main {
  padding: 0 0 16px 0;
}

/* ======= 画面切替 ======= */
.screen { display: none; }
.screen.active { display: block; animation: fadeIn 0.3s ease; }

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ======= ホーム画面 ======= */
.home-hero {
  padding: 32px 20px 20px;
  text-align: center;
}

.hero-title {
  font-size: 28px;
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: -0.5px;
  margin-bottom: 8px;
}

.hero-title .accent {
  background: linear-gradient(135deg, var(--primary-light), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  color: var(--text-secondary);
  font-size: 14px;
}

/* 難易度セレクター */
.level-selector {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 20px;
}

.level-label {
  font-size: 13px;
  color: var(--text-secondary);
  white-space: nowrap;
}

.level-tabs {
  display: flex;
  background: var(--card);
  border-radius: 10px;
  padding: 3px;
  gap: 2px;
  flex: 1;
}

.level-tab {
  flex: 1;
  padding: 7px 4px;
  border: none;
  border-radius: 8px;
  background: transparent;
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
}

.level-tab.active {
  background: var(--primary);
  color: #fff;
  font-weight: 600;
  box-shadow: 0 2px 8px rgba(108,99,255,0.4);
}

/* 進捗 */
.progress-section {
  margin: 8px 20px 16px;
  background: var(--card);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  border: 1px solid var(--border);
}

.progress-header {
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.progress-bar-wrap {
  background: var(--bg3);
  border-radius: 4px;
  height: 8px;
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  border-radius: 4px;
  transition: width 0.6s ease;
}

/* セクションタイトル */
.section-title {
  padding: 4px 20px 12px;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.3px;
}

/* シチュエーショングリッド */
.situation-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  padding: 0 20px 20px;
}

.situation-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 14px;
  cursor: pointer;
  transition: all 0.25s;
  position: relative;
  overflow: hidden;
  text-align: center;
}

.situation-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  right: 0; height: 3px;
  border-radius: var(--radius) var(--radius) 0 0;
  opacity: 0.8;
}

.situation-card:active { transform: scale(0.97); }
.situation-card:hover { border-color: rgba(108,99,255,0.4); background: var(--card2); }

.situation-card.done { border-color: rgba(67,217,173,0.35); }
.situation-card.done::after {
  content: '✓';
  position: absolute;
  top: 8px;
  right: 10px;
  font-size: 11px;
  color: var(--accent);
  font-weight: 700;
  background: rgba(67,217,173,0.15);
  border-radius: 50%;
  width: 18px;
  height: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.card-icon {
  font-size: 32px;
  margin-bottom: 10px;
  display: block;
}

.card-name {
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 3px;
  color: var(--text);
}

.card-name-en {
  font-size: 10px;
  color: var(--text-muted);
  font-weight: 400;
}

.card-count {
  font-size: 10px;
  color: var(--text-secondary);
  margin-top: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 3px;
}

/* ── カード内アクションボタン ── */
.card-actions {
  display: flex;
  gap: 5px;
  margin-top: 10px;
  width: 100%;
}
.card-btn-ai,
.card-btn-phrase {
  flex: 1;
  border: none;
  border-radius: 10px;
  padding: 7px 4px;
  font-size: 10px;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  transition: all .18s;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
  line-height: 1;
}
.card-btn-ai {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  box-shadow: 0 2px 8px rgba(108,99,255,.35);
}
.card-btn-ai:hover  { transform: translateY(-1px); box-shadow: 0 4px 12px rgba(108,99,255,.5); }
.card-btn-ai:active { transform: scale(.96); }

.card-btn-phrase {
  background: var(--bg3);
  color: var(--text-secondary);
  border: 1px solid var(--border);
}
.card-btn-phrase:hover  { background: var(--card2); color: var(--text); }
.card-btn-phrase:active { transform: scale(.96); }

/* ======= フレーズ画面 ======= */
.phrase-header {
  background: var(--card);
  padding: 24px 20px 20px;
  text-align: center;
  border-bottom: 1px solid var(--border);
  position: relative;
}

.situation-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 20px;
  margin-bottom: 8px;
}

#phraseScreenTitle {
  font-size: 20px;
  font-weight: 800;
  margin-bottom: 4px;
}

#phraseScreenSub {
  font-size: 12px;
  color: var(--text-secondary);
}

/* モードタブ */
.mode-tabs {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--border);
  background: var(--bg2);
}

.mode-tab {
  flex: 1;
  padding: 14px 8px;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  border-bottom: 2px solid transparent;
  transition: all 0.2s;
  margin-bottom: -1px;
}

.mode-tab.active {
  color: var(--primary-light);
  border-bottom-color: var(--primary);
  font-weight: 600;
}

/* 日本語訳トグル */
.translation-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 20px;
  background: var(--bg2);
  font-size: 13px;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border);
}

.toggle-switch { position: relative; display: inline-block; width: 44px; height: 24px; }
.toggle-switch input { opacity: 0; width: 0; height: 0; }
.toggle-slider {
  position: absolute; cursor: pointer;
  inset: 0;
  background: var(--bg3);
  border-radius: 24px;
  transition: 0.3s;
  border: 1px solid var(--border);
}
.toggle-slider::before {
  content: '';
  position: absolute;
  width: 18px; height: 18px;
  left: 3px; bottom: 2px;
  background: var(--text-secondary);
  border-radius: 50%;
  transition: 0.3s;
}
input:checked + .toggle-slider { background: var(--primary); border-color: var(--primary); }
input:checked + .toggle-slider::before { transform: translateX(19px); background: #fff; }

/* フレーズリスト */
.phrase-list {
  padding: 12px 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.phrase-item {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  cursor: pointer;
  transition: all 0.2s;
  position: relative;
}

.phrase-item:hover { border-color: rgba(108,99,255,0.4); background: var(--card2); }
.phrase-item:active { transform: scale(0.99); }
.phrase-item.learned { border-color: rgba(67,217,173,0.35); }

.phrase-item-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 8px;
  margin-bottom: 6px;
}

.phrase-en {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  line-height: 1.4;
  flex: 1;
}

.phrase-badge {
  font-size: 10px;
  font-weight: 600;
  padding: 2px 7px;
  border-radius: 6px;
  white-space: nowrap;
  flex-shrink: 0;
}

.phrase-badge.beginner { background: rgba(67,217,173,0.15); color: var(--accent); }
.phrase-badge.intermediate { background: rgba(255,181,71,0.15); color: var(--warning); }
.phrase-badge.advanced { background: rgba(255,101,132,0.15); color: var(--secondary); }

.phrase-ja {
  font-size: 12px;
  color: var(--text-secondary);
  line-height: 1.5;
  transition: opacity 0.2s;
}

.phrase-ja.hidden { opacity: 0; pointer-events: none; }

.phrase-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 8px;
  padding-top: 8px;
  border-top: 1px solid var(--border);
}

.phrase-category {
  font-size: 10px;
  color: var(--text-muted);
}

.learned-icon {
  font-size: 14px;
  color: var(--accent);
  display: none;
}

.phrase-item.learned .learned-icon { display: block; }

/* ======= ロールプレイ ======= */
.roleplay-info {
  background: linear-gradient(135deg, rgba(108,99,255,0.15), rgba(67,217,173,0.08));
  border: 1px solid rgba(108,99,255,0.2);
  border-radius: var(--radius);
  padding: 16px;
  margin: 12px 16px;
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
}

.roleplay-info strong { color: var(--primary-light); }

.chat-container {
  padding: 12px 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-height: 320px;
  overflow-y: auto;
}

.chat-bubble {
  max-width: 80%;
  padding: 12px 14px;
  border-radius: var(--radius);
  font-size: 14px;
  line-height: 1.5;
  animation: bubbleIn 0.3s ease;
}

@keyframes bubbleIn {
  from { opacity: 0; transform: scale(0.9) translateY(4px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}

.chat-bubble.npc {
  background: var(--card2);
  border: 1px solid var(--border);
  align-self: flex-start;
  border-bottom-left-radius: 4px;
}

.chat-bubble.user {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  align-self: flex-end;
  border-bottom-right-radius: 4px;
  color: #fff;
}

.chat-bubble.user.wrong {
  background: linear-gradient(135deg, var(--error), #cc3a56);
}

.bubble-role {
  font-size: 10px;
  color: var(--text-muted);
  margin-bottom: 4px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.chat-bubble.user .bubble-role { color: rgba(255,255,255,0.6); }

.bubble-translation {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 5px;
  font-style: italic;
}

.chat-bubble.user .bubble-translation { color: rgba(255,255,255,0.55); }

.roleplay-input-area {
  padding: 12px 16px 20px;
  border-top: 1px solid var(--border);
}

.options-label {
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 10px;
}

.options-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.option-btn {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  text-align: left;
  cursor: pointer;
  transition: all 0.2s;
  color: var(--text);
  font-size: 14px;
  line-height: 1.4;
}

.option-btn:hover { border-color: var(--primary); background: var(--card2); }
.option-btn:active { transform: scale(0.99); }

.option-btn.correct {
  border-color: var(--accent);
  background: rgba(67,217,173,0.12);
  color: var(--accent);
}

.option-btn.wrong {
  border-color: var(--error);
  background: rgba(255,101,132,0.1);
  color: var(--error);
  opacity: 0.7;
}

.option-num {
  font-size: 11px;
  font-weight: 700;
  color: var(--text-muted);
  margin-right: 6px;
}

.option-btn.correct .option-num { color: var(--accent); }

.btn-restart {
  margin-top: 14px;
  width: 100%;
  padding: 12px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 13px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  transition: all 0.2s;
}

.btn-restart:hover { background: var(--card2); color: var(--text); }

/* ======= 結果画面 ======= */
.result-container {
  padding: 40px 24px 32px;
  text-align: center;
}

.result-emoji {
  font-size: 64px;
  margin-bottom: 16px;
  display: block;
  animation: bounce 0.6s ease;
}

@keyframes bounce {
  0%,100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

.result-title {
  font-size: 24px;
  font-weight: 800;
  margin-bottom: 6px;
}

.result-sub {
  color: var(--text-secondary);
  font-size: 14px;
  margin-bottom: 24px;
}

.result-stats {
  display: flex;
  justify-content: center;
  gap: 24px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 20px;
}

.stat-item { text-align: center; }

.stat-num {
  font-size: 28px;
  font-weight: 800;
  color: var(--primary-light);
  line-height: 1;
}

.stat-label {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 4px;
}

.result-review {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 24px;
  text-align: left;
}

.review-item {
  padding: 8px 0;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
}

.review-item:last-child { border-bottom: none; }

.review-q { color: var(--text-secondary); margin-bottom: 3px; font-size: 11px; }
.review-a { color: var(--text); margin-bottom: 2px; }
.review-correct { color: var(--accent); font-size: 11px; }
.review-wrong { color: var(--error); font-size: 11px; }

.result-actions {
  display: flex;
  gap: 12px;
}

/* ======= ボタン ======= */
.btn-primary {
  flex: 1;
  padding: 14px 20px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  border: none;
  border-radius: var(--radius-sm);
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: all 0.25s;
  box-shadow: 0 4px 16px rgba(108,99,255,0.35);
}

.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 6px 20px rgba(108,99,255,0.5); }
.btn-primary:active { transform: translateY(0); }

.btn-secondary {
  flex: 1;
  padding: 14px 20px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: all 0.2s;
}

.btn-secondary:hover { background: var(--card2); }

.btn-outline {
  flex: 1;
  padding: 12px 16px;
  background: transparent;
  border: 1px solid var(--primary);
  border-radius: var(--radius-sm);
  color: var(--primary-light);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  transition: all 0.2s;
}

.btn-outline:hover { background: rgba(108,99,255,0.1); }

/* ======= モーダル ======= */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.7);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 200;
  display: flex;
  align-items: flex-end;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s;
}

.modal-overlay.open {
  opacity: 1;
  pointer-events: all;
}

.modal-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 24px 24px 0 0;
  padding: 24px 20px 40px;
  width: 100%;
  max-height: 85vh;
  overflow-y: auto;
  transform: translateY(100%);
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.modal-overlay.open .modal-card { transform: translateY(0); }

.modal-close {
  position: absolute;
  top: 20px;
  right: 20px;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 50%;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--text-secondary);
  font-size: 13px;
  transition: all 0.2s;
}

.modal-close:hover { background: var(--card2); color: var(--text); }

.modal-situation-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 20px;
  margin-bottom: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.modal-phrase {
  font-size: 22px;
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 6px;
  color: var(--text);
}

.modal-phonetic {
  font-size: 13px;
  color: var(--primary-light);
  margin-bottom: 10px;
  font-style: italic;
}

.modal-translation {
  font-size: 15px;
  color: var(--text-secondary);
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
  line-height: 1.6;
}

.modal-section-title {
  font-size: 11px;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 8px;
  margin-top: 16px;
}

.modal-tip {
  background: rgba(108,99,255,0.1);
  border: 1px solid rgba(108,99,255,0.2);
  border-radius: var(--radius-sm);
  padding: 12px;
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
}

.modal-examples {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 20px;
}

.example-item {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px;
}

.example-en {
  font-size: 14px;
  color: var(--text);
  margin-bottom: 3px;
  font-weight: 500;
}

.example-ja {
  font-size: 12px;
  color: var(--text-muted);
}

.modal-actions {
  display: flex;
  gap: 10px;
  margin-top: 20px;
}

/* ======= トースト ======= */
.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(80px);
  background: var(--card2);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 12px 20px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text);
  z-index: 300;
  white-space: nowrap;
  box-shadow: var(--shadow);
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1), opacity 0.3s;
  opacity: 0;
  max-width: calc(100% - 40px);
}

.toast.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

/* ======= カラーテーマ（シチュエーション別） ======= */
.color-violet::before { background: linear-gradient(90deg,#6C63FF,#8B5CF6); }
.color-violet .situation-badge { background: rgba(108,99,255,0.2); color: #8B85FF; border: 1px solid rgba(108,99,255,0.3); }
.color-violet-tag { background: rgba(108,99,255,0.2); color: #8B85FF; }

.color-sky::before { background: linear-gradient(90deg,#38BDF8,#0EA5E9); }
.color-sky .situation-badge, .color-sky-badge { background: rgba(56,189,248,0.2); color: #38BDF8; border: 1px solid rgba(56,189,248,0.3); }
.color-sky-tag { background: rgba(56,189,248,0.2); color: #38BDF8; }

.color-emerald::before { background: linear-gradient(90deg,#10B981,#34D399); }
.color-emerald .situation-badge { background: rgba(16,185,129,0.2); color: #34D399; border: 1px solid rgba(16,185,129,0.3); }
.color-emerald-tag { background: rgba(16,185,129,0.2); color: #34D399; }

.color-orange::before { background: linear-gradient(90deg,#F97316,#FB923C); }
.color-orange .situation-badge { background: rgba(249,115,22,0.2); color: #FB923C; border: 1px solid rgba(249,115,22,0.3); }
.color-orange-tag { background: rgba(249,115,22,0.2); color: #FB923C; }

.color-rose::before { background: linear-gradient(90deg,#F43F5E,#FB7185); }
.color-rose .situation-badge { background: rgba(244,63,94,0.2); color: #FB7185; border: 1px solid rgba(244,63,94,0.3); }
.color-rose-tag { background: rgba(244,63,94,0.2); color: #FB7185; }

.color-teal::before { background: linear-gradient(90deg,#14B8A6,#2DD4BF); }
.color-teal .situation-badge { background: rgba(20,184,166,0.2); color: #2DD4BF; border: 1px solid rgba(20,184,166,0.3); }
.color-teal-tag { background: rgba(20,184,166,0.2); color: #2DD4BF; }

.color-amber::before { background: linear-gradient(90deg,#F59E0B,#FCD34D); }
.color-amber .situation-badge { background: rgba(245,158,11,0.2); color: #FCD34D; border: 1px solid rgba(245,158,11,0.3); }
.color-amber-tag { background: rgba(245,158,11,0.2); color: #FCD34D; }

.color-indigo::before { background: linear-gradient(90deg,#6366F1,#818CF8); }
.color-indigo .situation-badge { background: rgba(99,102,241,0.2); color: #818CF8; border: 1px solid rgba(99,102,241,0.3); }
.color-indigo-tag { background: rgba(99,102,241,0.2); color: #818CF8; }

/* 子供用追加カラー */
.color-yellow::before { background: linear-gradient(90deg,#F59E0B,#FBBF24); }
.color-yellow .situation-badge { background: rgba(251,191,36,0.2); color: #FBBF24; border: 1px solid rgba(251,191,36,0.3); }
.color-yellow-tag { background: rgba(251,191,36,0.2); color: #FBBF24; }

.color-blue::before { background: linear-gradient(90deg,#3B82F6,#60A5FA); }
.color-blue .situation-badge { background: rgba(59,130,246,0.2); color: #60A5FA; border: 1px solid rgba(59,130,246,0.3); }
.color-blue-tag { background: rgba(59,130,246,0.2); color: #60A5FA; }

.color-green::before { background: linear-gradient(90deg,#22C55E,#4ADE80); }
.color-green .situation-badge { background: rgba(34,197,94,0.2); color: #4ADE80; border: 1px solid rgba(34,197,94,0.3); }
.color-green-tag { background: rgba(34,197,94,0.2); color: #4ADE80; }

.color-red::before { background: linear-gradient(90deg,#EF4444,#F87171); }
.color-red .situation-badge { background: rgba(239,68,68,0.2); color: #F87171; border: 1px solid rgba(239,68,68,0.3); }
.color-red-tag { background: rgba(239,68,68,0.2); color: #F87171; }

.color-purple::before { background: linear-gradient(90deg,#A855F7,#C084FC); }
.color-purple .situation-badge { background: rgba(168,85,247,0.2); color: #C084FC; border: 1px solid rgba(168,85,247,0.3); }
.color-purple-tag { background: rgba(168,85,247,0.2); color: #C084FC; }

.color-pink::before { background: linear-gradient(90deg,#EC4899,#F472B6); }
.color-pink .situation-badge { background: rgba(236,72,153,0.2); color: #F472B6; border: 1px solid rgba(236,72,153,0.3); }
.color-pink-tag { background: rgba(236,72,153,0.2); color: #F472B6; }

/* ======= モード切替スイッチ ======= */
.mode-switcher {
  display: flex;
  gap: 8px;
  padding: 16px 20px 8px;
  justify-content: center;
}

.mode-switch-btn {
  flex: 1;
  max-width: 160px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 16px;
  border-radius: 14px;
  border: 2px solid var(--border);
  background: var(--card);
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.25s;
}

.mode-switch-btn.active {
  border-color: var(--primary);
  background: rgba(108,99,255,0.15);
  color: var(--primary-light);
  box-shadow: 0 0 16px rgba(108,99,255,0.2);
}

.mode-switch-icon { font-size: 20px; }

/* ======= 子供モード全体テーマ ======= */
body.kids-mode {
  background-color: #0D1B2A;
  background-image:
    radial-gradient(ellipse at 15% 10%, rgba(255,200,50,0.12) 0%, transparent 50%),
    radial-gradient(ellipse at 85% 80%, rgba(100,220,150,0.1) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 50%, rgba(200,100,255,0.06) 0%, transparent 60%);
  font-family: 'Nunito', 'Noto Sans JP', sans-serif;
}

body.kids-mode .app-header {
  background: rgba(13,27,42,0.9);
  border-bottom-color: rgba(255,200,50,0.2);
}

body.kids-mode .logo { color: #FFD700; }
body.kids-mode .logo-icon { font-size: 22px; }

body.kids-mode .mode-switch-btn.active {
  border-color: #FFD700;
  background: rgba(255,215,0,0.12);
  color: #FFD700;
  box-shadow: 0 0 16px rgba(255,215,0,0.2);
}

/* ======= 子供用ヒーロー ======= */
.kids-hero { text-align: center; padding: 24px 20px 16px; }

.kids-hero-stars {
  font-size: 22px;
  margin-bottom: 10px;
  letter-spacing: 4px;
  animation: starSpin 3s ease-in-out infinite;
}

@keyframes starSpin {
  0%, 100% { letter-spacing: 4px; }
  50% { letter-spacing: 8px; }
}

.kids-hero-title {
  font-size: 28px !important;
  font-weight: 900 !important;
}

.accent-kids {
  background: linear-gradient(135deg, #FFD700, #FF6B9D, #4FC3F7);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.kids-hero-sub {
  font-size: 16px !important;
  color: #B0C4DE !important;
}

/* ======= 子供用カードスタイル ======= */
body.kids-mode .situation-card {
  border-radius: 20px;
  padding: 20px 12px;
  transition: transform 0.2s, box-shadow 0.2s;
}

body.kids-mode .situation-card:hover,
body.kids-mode .situation-card:active {
  transform: scale(1.04) rotate(-1deg);
  box-shadow: 0 8px 24px rgba(0,0,0,0.4);
}

body.kids-mode .card-icon { font-size: 40px; margin-bottom: 12px; }

body.kids-mode .card-name {
  font-size: 16px;
  font-weight: 900;
  font-family: 'Nunito', sans-serif;
}

body.kids-mode .card-name-en {
  font-size: 11px;
  font-weight: 700;
}

/* ======= 子供用フレーズカード ======= */
body.kids-mode .phrase-item {
  border-radius: 18px;
  padding: 18px;
}

body.kids-mode .phrase-en {
  font-size: 18px;
  font-weight: 800;
  font-family: 'Nunito', sans-serif;
}

body.kids-mode .phrase-ja {
  font-size: 15px;
  color: #B0C4DE;
  margin-top: 4px;
}

/* ======= 子供用モーダル ======= */
body.kids-mode .modal-card {
  border-radius: 28px 28px 0 0;
}

body.kids-mode .modal-phrase {
  font-size: 26px;
  font-family: 'Nunito', sans-serif;
  font-weight: 900;
}

body.kids-mode .modal-phonetic {
  font-size: 18px;
  font-weight: 700;
  font-style: normal;
  color: #FFD700;
  background: rgba(255,215,0,0.1);
  border-radius: 8px;
  padding: 4px 10px;
  display: inline-block;
  margin-bottom: 12px;
}

body.kids-mode .modal-translation {
  font-size: 20px;
  font-weight: 700;
}

/* ======= 子供用ロールプレイ ======= */
body.kids-mode .options-label {
  font-size: 14px;
  font-weight: 700;
  color: #B0C4DE;
}

body.kids-mode .option-btn {
  font-size: 15px;
  font-weight: 700;
  padding: 14px 16px;
  border-radius: 14px;
  font-family: 'Nunito', sans-serif;
}

body.kids-mode .chat-bubble {
  border-radius: 18px;
  padding: 14px 16px;
}

body.kids-mode .chat-bubble.npc {
  font-size: 15px;
}

body.kids-mode .bubble-translation {
  font-size: 13px;
}

/* ======= 子供用結果画面 ======= */
body.kids-mode .result-title {
  font-family: 'Nunito', sans-serif;
  font-weight: 900;
}

body.kids-mode .stat-num {
  font-size: 36px;
}

/* ======= 子供用進捗バー ======= */
body.kids-mode .progress-bar {
  background: linear-gradient(90deg, #FFD700, #FF6B9D, #4FC3F7);
  animation: progressPulse 2s ease-in-out infinite;
}

@keyframes progressPulse {
  0%, 100% { filter: brightness(1); }
  50% { filter: brightness(1.2); }
}

/* ======= スクロールバー ======= */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--bg3); border-radius: 4px; }

/* ======= モバイル最適化 ======= */

/* セーフエリア対応 (iPhone ノッチ/ホームバー) */
.app-header {
  padding-top: max(14px, env(safe-area-inset-top));
  padding-left: max(20px, env(safe-area-inset-left));
  padding-right: max(20px, env(safe-area-inset-right));
}

.app-main {
  padding-bottom: env(safe-area-inset-bottom, 0px);
}

/* タッチ操作の改善 */
.situation-card,
.phrase-item,
.option-btn,
.mode-switch-btn,
.btn-primary,
.btn-secondary,
.btn-outline,
.level-tab,
.mode-tab {
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
  user-select: none;
  -webkit-user-select: none;
}

/* ボタンの最小タップ領域 (44px) */
.mode-tab { min-height: 48px; }
.level-tab { min-height: 36px; }
.option-btn { min-height: 52px; }
.btn-primary, .btn-secondary, .btn-outline { min-height: 52px; }

/* モーダルのスクロール改善 */
.modal-card {
  -webkit-overflow-scrolling: touch;
  overscroll-behavior: contain;
}

.chat-container {
  -webkit-overflow-scrolling: touch;
  overscroll-behavior: contain;
}

/* フォーカス状態をモバイル向けに調整 */
button:focus-visible {
  outline: 2px solid var(--primary-light);
  outline-offset: 2px;
}

/* 入力ズーム防止（iOS） */
input, select, textarea {
  font-size: 16px !important;
}

/* ======= レスポンシブ ======= */
@media (max-width: 360px) {
  .hero-title { font-size: 24px; }
  .kids-hero-title { font-size: 22px !important; }
  .situation-grid { grid-template-columns: 1fr 1fr; gap: 8px; }
  .situation-card { padding: 14px 10px; }
  .card-icon { font-size: 26px; }
  body.kids-mode .card-icon { font-size: 32px; }
  .mode-switch-btn { padding: 10px 12px; font-size: 13px; }
}

@media (min-width: 480px) {
  body { box-shadow: var(--shadow); }
}

/* 横向き時の調整 */
@media (orientation: landscape) and (max-height: 500px) {
  .home-hero { padding: 12px 20px 8px; }
  .hero-title { font-size: 22px; }
  .app-main { padding-bottom: 20px; }
  .chat-container { max-height: 200px; }
}

/* ダークモード時の追加対応 */
@media (prefers-color-scheme: dark) {
  body { background-color: var(--bg); }
}