/* ============ RESET & BASE ============ */
* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: -apple-system, "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", sans-serif;
  background: linear-gradient(135deg, #FEF3E2 0%, #FFE5D9 50%, #FFD9E5 100%);
  background-attachment: fixed;
  color: #2C2C2A;
  min-height: 100vh;
  -webkit-tap-highlight-color: transparent;
}

button { font-family: inherit; cursor: pointer; }
input { font-family: inherit; }

.app { max-width: 900px; margin: 0 auto; padding: 16px; }

/* ============ HEADER ============ */
.header {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 16px; padding: 16px 20px;
  background: white; border-radius: 20px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.06);
  animation: slideDown 0.4s ease-out;
}
.title {
  font-size: 22px; font-weight: 700;
  background: linear-gradient(90deg, #D85A30, #E24B4A, #BA7517);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.stats { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.stat-pill {
  padding: 6px 12px; background: #FEF3E2; border-radius: 20px;
  font-weight: 600; font-size: 14px;
  transition: transform 0.2s;
}
.stat-pill.bump { animation: bump 0.4s ease-out; }

/* ============ NAV TABS ============ */
.nav-tabs { display: flex; gap: 8px; margin-bottom: 16px; flex-wrap: wrap; }
.nav-tab {
  flex: 1; min-width: 100px; padding: 12px;
  background: white; border: none; border-radius: 14px;
  font-size: 14px; font-weight: 600; color: #5F5E5A;
  transition: all 0.2s; box-shadow: 0 2px 6px rgba(0,0,0,0.04);
}
.nav-tab:hover { transform: translateY(-2px); }
.nav-tab.active {
  background: linear-gradient(135deg, #378ADD, #5DCAA5);
  color: white; box-shadow: 0 4px 12px rgba(55,138,221,0.3);
}

/* ============ THEME SECTIONS ============ */
.theme-section {
  background: white; border-radius: 20px; padding: 16px;
  margin-bottom: 12px; box-shadow: 0 4px 12px rgba(0,0,0,0.04);
  animation: slideUp 0.4s ease-out;
}
.theme-header {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 12px; cursor: pointer; padding: 4px;
  border-radius: 10px; transition: background 0.2s;
}
.theme-header:hover { background: #FAFAF7; }
.theme-title { font-size: 17px; font-weight: 700; display: flex; align-items: center; gap: 8px; }
.theme-meta { display: flex; align-items: center; gap: 10px; font-size: 13px; color: #5F5E5A; }
.theme-bar {
  width: 80px; height: 6px; background: #EFEFEC; border-radius: 4px; overflow: hidden;
}
.theme-bar-fill {
  height: 100%; background: linear-gradient(90deg, #97C459, #5DCAA5);
  border-radius: 4px; transition: width 0.5s;
}

.levels-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 10px; }
@media (max-width: 700px) { .levels-grid { grid-template-columns: repeat(4, 1fr); } }
@media (max-width: 480px) { .levels-grid { grid-template-columns: repeat(3, 1fr); } }

.island {
  background: #F8F8F5; border: 2px solid transparent;
  border-radius: 14px; padding: 12px 6px;
  text-align: center; transition: all 0.2s;
  user-select: none; cursor: pointer;
  position: relative; overflow: hidden;
}
.island:hover:not(.locked) {
  transform: translateY(-3px) scale(1.03);
  border-color: #378ADD; box-shadow: 0 6px 16px rgba(55,138,221,0.15);
}
.island.locked { opacity: 0.4; cursor: not-allowed; }
.island.completed {
  background: linear-gradient(135deg, #EAF3DE, #C0DD97);
  border-color: #97C459;
}
.island.new { animation: popIn 0.5s ease-out; }
.island-icon {
  font-size: 32px; margin-bottom: 4px;
  display: inline-block; pointer-events: none;
  transition: transform 0.3s;
}
.island:hover:not(.locked) .island-icon { transform: rotate(-8deg) scale(1.1); }
.island-num { font-size: 11px; color: #5F5E5A; font-weight: 600; pointer-events: none; }
.island-stars { font-size: 10px; letter-spacing: 1px; margin-top: 2px; height: 14px; pointer-events: none; }

/* ============ PETS ============ */
.pets-section {
  background: white; border-radius: 20px; padding: 16px; margin-top: 16px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.04);
}
.pets-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(80px, 1fr));
  gap: 8px; margin-top: 12px;
}
.pet {
  padding: 12px 6px; text-align: center;
  background: #F8F8F5; border-radius: 12px; font-size: 12px;
  transition: transform 0.2s;
}
.pet:not(.locked):hover { transform: translateY(-2px) scale(1.05); }
.pet.locked { opacity: 0.3; }
.pet.unlocked { background: linear-gradient(135deg, #FEF3E2, #FAC775); }
.pet-icon { font-size: 32px; display: block; margin-bottom: 4px; }
.pet-name { font-weight: 600; }

/* ============ SCREEN (level/chat) ============ */
.screen {
  background: white; border-radius: 20px; padding: 20px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.04); min-height: 400px;
  animation: fadeIn 0.3s;
}

.back-btn {
  background: #F8F8F5; border: none; padding: 8px 14px;
  border-radius: 12px; font-size: 13px; margin-bottom: 16px;
  transition: background 0.2s;
}
.back-btn:hover { background: #EFEFEC; }

.step-tabs { display: flex; gap: 6px; margin-bottom: 20px; }
.step-tab {
  flex: 1; padding: 10px 6px; text-align: center; font-size: 13px;
  background: #F8F8F5; border-radius: 10px; color: #5F5E5A; font-weight: 600;
}
.step-tab.active {
  background: linear-gradient(135deg, #378ADD, #5DCAA5);
  color: white;
}
.step-tab.done { background: #EAF3DE; color: #3B6D11; }

.level-header { text-align: center; margin-bottom: 16px; }
.level-icon {
  font-size: 48px; display: inline-block;
  animation: bobble 2s ease-in-out infinite;
}
.level-name { font-weight: 700; font-size: 19px; margin-top: 4px; }

/* ============ READ ============ */
.story-box {
  font-size: 20px; line-height: 2; padding: 20px;
  background: linear-gradient(135deg, #FEF3E2, #FFE5D9);
  border-radius: 16px; margin-bottom: 16px; min-height: 120px;
}
.word {
  cursor: pointer; padding: 2px 4px; border-radius: 4px;
  transition: all 0.15s; display: inline-block;
}
.word:hover { background: #FAC775; transform: translateY(-1px); }

/* ============ BUTTONS ============ */
.btn {
  padding: 12px 20px; background: linear-gradient(135deg, #378ADD, #5DCAA5);
  color: white; border: none; border-radius: 14px; font-size: 14px;
  font-weight: 600; transition: all 0.2s;
  box-shadow: 0 3px 8px rgba(55,138,221,0.2);
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 5px 14px rgba(55,138,221,0.3); }
.btn:active { transform: translateY(0); }
.btn-success { background: linear-gradient(135deg, #97C459, #5DCAA5); box-shadow: 0 3px 8px rgba(151,196,89,0.2); }
.btn-secondary {
  background: #F8F8F5; color: #2C2C2A;
  box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}
.btn-small { padding: 6px 12px; font-size: 12px; }

.controls { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; margin-top: 12px; }

/* ============ SPEAK ============ */
.speak-box {
  padding: 24px 20px; background: linear-gradient(135deg, #FEF3E2, #FFE5D9);
  border-radius: 16px; margin-bottom: 16px; text-align: center;
}
.target-sentence { font-size: 22px; font-weight: 600; margin: 12px 0; }
.mic-btn {
  width: 90px; height: 90px; border-radius: 50%;
  background: linear-gradient(135deg, #F09595, #E24B4A);
  color: white; border: none; font-size: 36px; margin: 16px auto;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 16px rgba(226,75,74,0.3);
  transition: all 0.2s;
}
.mic-btn:hover { transform: scale(1.05); }
.mic-btn.recording {
  background: linear-gradient(135deg, #97C459, #5DCAA5);
  animation: pulse 1s infinite;
  box-shadow: 0 4px 16px rgba(151,196,89,0.4);
}
.result { padding: 14px; border-radius: 12px; margin-top: 12px; font-size: 14px; }
.result.good { background: linear-gradient(135deg, #EAF3DE, #C0DD97); color: #3B6D11; font-weight: 600; }
.result.try { background: linear-gradient(135deg, #FAEEDA, #FAC775); color: #854F0B; }

/* ============ QUIZ ============ */
.quiz-q {
  font-size: 18px; font-weight: 600; margin-bottom: 16px;
  text-align: center; padding: 18px;
  background: linear-gradient(135deg, #FEF3E2, #FFE5D9);
  border-radius: 16px;
}
.options { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.option {
  padding: 16px; background: white; border: 2px solid #D3D1C7;
  border-radius: 14px; font-size: 16px; font-weight: 500;
  text-align: center; transition: all 0.2s; user-select: none;
}
.option:hover:not(.disabled) {
  background: #FAFAF7; border-color: #378ADD;
  transform: translateY(-2px); box-shadow: 0 4px 10px rgba(55,138,221,0.15);
}
.option.correct {
  background: linear-gradient(135deg, #EAF3DE, #C0DD97);
  border-color: #97C459; color: #3B6D11;
  animation: correctPop 0.5s;
}
.option.wrong {
  background: linear-gradient(135deg, #FCEBEB, #F7C1C1);
  border-color: #E24B4A; color: #A32D2D;
  animation: wrongShake 0.4s;
}
.option.disabled { pointer-events: none; opacity: 0.5; }

/* ============ REWARD ============ */
.reward { text-align: center; padding: 30px 20px; position: relative; }
.reward-icon {
  font-size: 80px; margin-bottom: 12px; display: inline-block;
  animation: rewardBounce 0.8s ease-out;
}
.reward-title { font-size: 26px; font-weight: 700; margin-bottom: 8px; }
.reward-stars {
  font-size: 36px; letter-spacing: 8px; margin: 16px 0;
  animation: starsAppear 1s;
}
.unlock-banner {
  padding: 16px; background: linear-gradient(135deg, #EAF3DE, #C0DD97);
  color: #3B6D11; border-radius: 14px; margin-top: 16px;
  font-weight: 600; animation: unlockSlide 0.6s ease-out;
}

/* ============ CHAT ============ */
.chat-screen {
  background: white; border-radius: 20px; padding: 20px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.04); min-height: 500px;
  animation: fadeIn 0.3s;
}
.character-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 12px; margin-top: 16px;
}
.character-card {
  background: linear-gradient(135deg, #F8F8F5, #FEF3E2);
  border: 3px solid transparent; border-radius: 18px; padding: 16px;
  text-align: center; transition: all 0.2s;
}
.character-card:hover {
  border-color: #378ADD; transform: translateY(-3px);
  box-shadow: 0 8px 20px rgba(55,138,221,0.15);
}
.character-icon {
  font-size: 56px; display: inline-block;
  animation: bobble 2.5s ease-in-out infinite;
}
.character-name { font-weight: 700; margin: 8px 0 4px; font-size: 16px; }
.character-desc { font-size: 12px; color: #5F5E5A; line-height: 1.4; }

.api-setup {
  background: linear-gradient(135deg, #FEF3E2, #FFE5D9);
  padding: 16px; border-radius: 16px; margin-bottom: 16px;
}
.api-setup input {
  width: 100%; padding: 10px; border: 1px solid #D3D1C7;
  border-radius: 10px; font-size: 13px; font-family: monospace; margin: 8px 0;
}
.api-setup-help { font-size: 12px; color: #5F5E5A; margin-top: 8px; line-height: 1.6; }

.chat-window {
  height: 360px; overflow-y: auto; padding: 14px;
  background: #F8F8F5; border-radius: 16px; margin-bottom: 12px;
}
.msg {
  padding: 10px 14px; border-radius: 16px;
  max-width: 85%; font-size: 15px; line-height: 1.5;
  animation: msgSlide 0.3s ease-out;
}
.msg.ai { background: white; box-shadow: 0 1px 3px rgba(0,0,0,0.05); }
.msg.user {
  background: linear-gradient(135deg, #378ADD, #5DCAA5);
  color: white; margin-left: auto;
}
.msg-row { display: flex; align-items: flex-start; gap: 6px; margin-bottom: 10px; }
.msg-row.user { justify-content: flex-end; }
.msg-speak {
  background: white; border: 1px solid #D3D1C7; border-radius: 50%;
  width: 30px; height: 30px; font-size: 13px; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  margin-top: 4px; transition: all 0.15s;
}
.msg-speak:hover { background: #FEF3E2; transform: scale(1.1); }

.chat-input-row { display: flex; gap: 8px; }
.chat-input {
  flex: 1; padding: 12px; border: 1px solid #D3D1C7;
  border-radius: 14px; font-size: 14px;
}
.chat-input:focus { outline: none; border-color: #378ADD; box-shadow: 0 0 0 3px rgba(55,138,221,0.1); }
.chat-mic {
  width: 48px; height: 48px; border-radius: 50%;
  background: linear-gradient(135deg, #F09595, #E24B4A);
  color: white; border: none; font-size: 20px; flex-shrink: 0;
  transition: transform 0.15s;
}
.chat-mic:hover { transform: scale(1.05); }
.chat-mic.recording { background: linear-gradient(135deg, #97C459, #5DCAA5); animation: pulse 1s infinite; }

/* ============ FLASHCARDS ============ */
.flashcard-screen { padding: 20px; }
.flashcard-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px; }
.flashcard-progress { font-size: 14px; color: #5F5E5A; font-weight: 500; }

.flashcard {
  background: linear-gradient(135deg, #FEF3E2, #FFE5D9);
  border-radius: 24px; padding: 40px 20px;
  text-align: center; min-height: 280px;
  display: flex; flex-direction: column; justify-content: center; align-items: center;
  cursor: pointer; transition: transform 0.4s;
  perspective: 1000px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.06);
}
.flashcard.flipped { background: linear-gradient(135deg, #EAF3DE, #C0DD97); }
.flashcard-en { font-size: 42px; font-weight: 700; margin-bottom: 12px; color: #2C2C2A; }
.flashcard-cn { font-size: 28px; color: #3B6D11; font-weight: 600; }
.flashcard-hint { font-size: 13px; color: #5F5E5A; margin-top: 16px; }

.flashcard-controls { display: flex; gap: 8px; justify-content: center; margin-top: 16px; flex-wrap: wrap; }

/* ============ LISTENING ============ */
.listen-test {
  background: linear-gradient(135deg, #FEF3E2, #FFE5D9);
  padding: 30px 20px; border-radius: 20px; text-align: center; margin-bottom: 20px;
}
.listen-play-btn {
  width: 100px; height: 100px; border-radius: 50%;
  background: linear-gradient(135deg, #378ADD, #5DCAA5);
  color: white; border: none; font-size: 40px; margin: 16px auto;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 6px 20px rgba(55,138,221,0.3);
  transition: transform 0.2s;
}
.listen-play-btn:hover { transform: scale(1.05); }
.listen-q { font-size: 16px; color: #5F5E5A; margin-top: 8px; font-weight: 500; }

/* ============ SPELLING ============ */
.spell-screen {
  background: linear-gradient(135deg, #FEF3E2, #FFE5D9);
  padding: 20px; border-radius: 20px;
}
.spell-icon { font-size: 64px; text-align: center; margin: 12px 0; animation: bobble 2s infinite; }
.spell-clue { text-align: center; font-size: 16px; color: #5F5E5A; margin-bottom: 8px; }
.spell-cn { text-align: center; font-size: 22px; font-weight: 700; margin-bottom: 16px; color: #3B6D11; }

.spell-slots {
  display: flex; gap: 6px; justify-content: center; flex-wrap: wrap; margin-bottom: 20px;
}
.spell-slot {
  width: 38px; height: 50px; border: 2px dashed #D3D1C7;
  border-radius: 8px; display: flex; align-items: center; justify-content: center;
  font-size: 22px; font-weight: 700; background: white;
  transition: all 0.2s;
}
.spell-slot.filled { border-style: solid; border-color: #378ADD; background: #E6F1FB; }
.spell-slot.correct { border-color: #97C459; background: #EAF3DE; color: #3B6D11; }
.spell-slot.wrong { border-color: #E24B4A; background: #FCEBEB; color: #A32D2D; animation: wrongShake 0.4s; }

.spell-letters {
  display: flex; gap: 8px; justify-content: center; flex-wrap: wrap;
}
.spell-letter {
  width: 42px; height: 42px; border: none; border-radius: 10px;
  background: white; font-size: 18px; font-weight: 700;
  box-shadow: 0 2px 6px rgba(0,0,0,0.08); transition: all 0.15s;
}
.spell-letter:hover:not(:disabled) { transform: translateY(-2px); }
.spell-letter:disabled { opacity: 0.3; cursor: not-allowed; }

/* ============ STATS ============ */
.stats-screen { padding: 20px; }
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 12px; margin-bottom: 20px; }
.stats-card {
  background: linear-gradient(135deg, #FEF3E2, #FFE5D9);
  padding: 16px; border-radius: 16px; text-align: center;
}
.stats-card-num { font-size: 32px; font-weight: 700; color: #D85A30; }
.stats-card-label { font-size: 13px; color: #5F5E5A; margin-top: 4px; }
.stats-bars { background: #F8F8F5; padding: 16px; border-radius: 16px; }
.stats-bar-row { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; font-size: 13px; }
.stats-bar-label { width: 120px; flex-shrink: 0; }
.stats-bar-bar { flex: 1; height: 12px; background: #EFEFEC; border-radius: 6px; overflow: hidden; }
.stats-bar-fill { height: 100%; background: linear-gradient(90deg, #97C459, #5DCAA5); border-radius: 6px; transition: width 0.6s; }
.stats-bar-num { width: 50px; text-align: right; font-weight: 600; }

/* ============ FEATURE GRID (mode selector inside level page) ============ */
.feature-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 12px; margin-bottom: 20px;
}
.feature-card {
  background: linear-gradient(135deg, #FEF3E2, #FFE5D9);
  padding: 18px 12px; border-radius: 16px; text-align: center;
  border: 2px solid transparent; transition: all 0.2s;
}
.feature-card:hover { transform: translateY(-3px); border-color: #378ADD; box-shadow: 0 6px 16px rgba(55,138,221,0.15); }
.feature-icon { font-size: 36px; margin-bottom: 8px; }
.feature-title { font-weight: 700; font-size: 15px; margin-bottom: 4px; }
.feature-desc { font-size: 12px; color: #5F5E5A; }

/* ============ HINTS / TEXT ============ */
.hint { font-size: 13px; color: #5F5E5A; text-align: center; margin: 8px 0 12px; }
.small-text { font-size: 12px; color: #5F5E5A; }
.loading { text-align: center; padding: 60px; font-size: 16px; color: #5F5E5A; }
.error-banner {
  background: #FCEBEB; color: #A32D2D; padding: 16px 20px;
  border-radius: 14px; margin: 16px; font-size: 14px; line-height: 1.7;
}

/* ============ CONFETTI ============ */
.confetti-canvas {
  position: fixed; top: 0; left: 0; width: 100%; height: 100%;
  pointer-events: none; z-index: 999;
}

/* ============ ANIMATIONS ============ */
@keyframes slideDown {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes slideUp {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}
@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.1); }
}
@keyframes bobble {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}
@keyframes bump {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.2); }
}
@keyframes popIn {
  0% { opacity: 0; transform: scale(0.5); }
  60% { transform: scale(1.1); }
  100% { opacity: 1; transform: scale(1); }
}
@keyframes correctPop {
  0% { transform: scale(1); }
  50% { transform: scale(1.08); }
  100% { transform: scale(1); }
}
@keyframes wrongShake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-6px); }
  75% { transform: translateX(6px); }
}
@keyframes rewardBounce {
  0% { transform: scale(0) rotate(-180deg); opacity: 0; }
  60% { transform: scale(1.2) rotate(15deg); }
  80% { transform: scale(0.95) rotate(-5deg); }
  100% { transform: scale(1) rotate(0); opacity: 1; }
}
@keyframes starsAppear {
  0% { opacity: 0; transform: scale(0.5); }
  100% { opacity: 1; transform: scale(1); }
}
@keyframes unlockSlide {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes msgSlide {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ============ VIDEOS ============ */
.video-tabs {
  display: flex; gap: 8px; margin-bottom: 16px; flex-wrap: wrap;
}
.video-tab {
  padding: 10px 16px; background: #F8F8F5; border: none;
  border-radius: 12px; font-weight: 600; font-size: 13px;
  transition: all 0.2s;
}
.video-tab.active {
  background: linear-gradient(135deg, #378ADD, #5DCAA5);
  color: white;
}
.video-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 14px;
}
.video-card {
  background: white; border-radius: 16px; overflow: hidden;
  box-shadow: 0 4px 12px rgba(0,0,0,0.06); cursor: pointer;
  transition: transform 0.2s; border: 2px solid transparent;
  position: relative;
}
.video-card:hover {
  transform: translateY(-4px); border-color: #378ADD;
  box-shadow: 0 8px 24px rgba(55,138,221,0.15);
}
.video-card.completed { border-color: #97C459; }
.video-hide-btn {
  position: absolute; top: 6px; right: 6px;
  background: rgba(0,0,0,0.6); color: white;
  border: none; border-radius: 50%;
  width: 28px; height: 28px; font-size: 14px;
  cursor: pointer; z-index: 2;
  display: flex; align-items: center; justify-content: center;
  transition: background 0.15s;
}
.video-hide-btn:hover {
  background: rgba(226,75,74,0.9);
}
.video-thumb {
  width: 100%; aspect-ratio: 16/9; object-fit: cover; display: block;
  background: #F8F8F5;
}
.video-card-body { padding: 12px; }
.video-card-title { font-weight: 700; font-size: 14px; margin-bottom: 4px; }
.video-card-cn { font-size: 12px; color: #5F5E5A; margin-bottom: 8px; }
.video-card-meta {
  display: flex; gap: 8px; font-size: 11px; color: #5F5E5A;
  align-items: center; flex-wrap: wrap;
}
.video-tag {
  padding: 2px 8px; background: #FEF3E2; border-radius: 8px;
  font-weight: 600; color: #854F0B;
}
.video-tag.done { background: #EAF3DE; color: #3B6D11; }

.video-player-screen { padding: 0; }
.video-iframe-wrap {
  position: relative; width: 100%; aspect-ratio: 16/9;
  border-radius: 16px; overflow: hidden;
  background: #000;
}
.video-iframe-wrap iframe {
  width: 100%; height: 100%; border: 0;
}
.video-controls-bar {
  display: flex; gap: 8px; flex-wrap: wrap;
  margin-top: 12px; padding: 12px; background: #FEF3E2;
  border-radius: 12px; align-items: center;
}
.video-speed-label { font-size: 13px; font-weight: 600; }
.speed-btn {
  padding: 6px 12px; background: white; border: 1px solid #D3D1C7;
  border-radius: 8px; font-size: 13px; font-weight: 600;
  transition: all 0.15s;
}
.speed-btn.active {
  background: #378ADD; color: white; border-color: #378ADD;
}
.video-info {
  background: white; padding: 16px; border-radius: 16px;
  margin-top: 12px;
}
.video-info-title { font-size: 18px; font-weight: 700; margin-bottom: 4px; }
.video-vocab-list {
  display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px;
}
.video-vocab-chip {
  padding: 6px 12px; background: #F8F8F5; border-radius: 20px;
  font-size: 13px; cursor: pointer; transition: all 0.15s;
  border: 1px solid transparent;
}
.video-vocab-chip:hover {
  background: #FEF3E2; border-color: #FAC775;
}
.video-vocab-chip.saved {
  background: #EAF3DE; border-color: #97C459; color: #3B6D11;
}

/* ============ VOCAB BOOK ============ */
.vocab-book-screen { padding: 0; }
.vocab-empty {
  text-align: center; padding: 60px 20px; color: #5F5E5A;
}
.vocab-empty-icon { font-size: 64px; margin-bottom: 16px; opacity: 0.5; }
.vocab-list-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 10px;
}
.vocab-item {
  padding: 12px; background: white; border: 1.5px solid #EFEFEC;
  border-radius: 12px; transition: all 0.15s; position: relative;
}
.vocab-item:hover {
  border-color: #378ADD; box-shadow: 0 2px 8px rgba(55,138,221,0.08);
}
.vocab-item-en {
  font-size: 17px; font-weight: 700; margin-bottom: 2px;
  display: flex; align-items: center; gap: 6px;
}
.vocab-item-cn { font-size: 13px; color: #5F5E5A; }
.vocab-item-source { font-size: 10px; color: #B5B3AB; margin-top: 4px; }
.vocab-item-actions {
  display: flex; gap: 4px; margin-top: 8px;
}
.vocab-mini-btn {
  flex: 1; padding: 4px 8px; font-size: 11px; border-radius: 6px;
  border: 1px solid #D3D1C7; background: white; cursor: pointer;
}
.vocab-mini-btn:hover { background: #FEF3E2; }
.vocab-mini-btn.danger { color: #A32D2D; }

.vocab-toolbar {
  display: flex; gap: 8px; margin-bottom: 12px; flex-wrap: wrap;
  align-items: center;
}

/* ============ AI SETTINGS ============ */
.ai-provider-tabs {
  display: flex; gap: 8px; margin-bottom: 12px;
}
.ai-provider-tab {
  flex: 1; padding: 10px 6px; background: white; border: 2px solid #EFEFEC;
  border-radius: 10px; font-weight: 600; font-size: 13px;
  transition: all 0.15s;
}
.ai-provider-tab.active {
  border-color: #378ADD; background: linear-gradient(135deg, #FEF3E2, #FFE5D9);
}

/* ============ DAILY REVIEW ============ */
.review-screen { padding: 20px; }
.review-card {
  background: linear-gradient(135deg, #FEF3E2, #FFE5D9);
  padding: 20px; border-radius: 16px; margin-bottom: 16px;
}
.review-story {
  font-size: 17px; line-height: 1.9; padding: 16px;
  background: white; border-radius: 12px; margin: 12px 0;
}
.highlight-vocab {
  background: #FAC775; padding: 1px 4px; border-radius: 4px;
  font-weight: 600; cursor: pointer;
}

/* ============ MOBILE ============ */
@media (max-width: 600px) {
  .video-grid { grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); }
  .nav-tabs { gap: 4px; }
  .nav-tab { padding: 10px 6px; font-size: 12px; min-width: 70px; }
}

/* ============ SPEAK BUTTONS ROW ============ */
.speak-buttons-row {
  display: flex; gap: 6px; justify-content: center; align-items: center;
  margin: 20px 0;
}
.speak-listen-btn {
  width: 96px; height: 96px; border-radius: 50%;
  background: linear-gradient(135deg, #FAC775, #F5A623);
  color: white; border: none;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  font-family: inherit; font-weight: 600;
  box-shadow: 0 4px 16px rgba(245,166,35,0.3);
  transition: all 0.2s;
}
.speak-listen-btn:hover { transform: scale(1.05); }
.speak-listen-btn:active { transform: scale(0.95); }

/* Make mic-btn match new styling with label */
.mic-btn {
  width: 96px; height: 96px; flex-direction: column;
  margin: 0;
}

/* ============ CHAT VISUALIZATIONS ============ */
.chat-character-display {
  text-align: center;
  padding: 24px 0 20px;
  position: relative;
  min-height: 200px;
}
.chat-character-avatar {
  font-size: 140px;
  display: inline-block;
  position: relative;
  transition: transform 0.3s;
  line-height: 1;
  filter: drop-shadow(0 4px 12px rgba(0,0,0,0.1));
}
.chat-character-avatar.thinking {
  animation: thinking-bounce 1s infinite;
}
.chat-character-avatar.talking {
  animation: talking-shake 0.4s infinite;
}
.chat-character-avatar.happy {
  animation: happy-bounce 0.6s ease-out;
}
@keyframes thinking-bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}
@keyframes talking-shake {
  0%, 100% { transform: rotate(0); }
  25% { transform: rotate(-2deg) scale(1.02); }
  75% { transform: rotate(2deg) scale(1.02); }
}
@keyframes happy-bounce {
  0% { transform: scale(1) rotate(0); }
  30% { transform: scale(1.25) rotate(-10deg); }
  60% { transform: scale(1.15) rotate(10deg); }
  100% { transform: scale(1) rotate(0); }
}
.chat-thought-bubble {
  position: absolute; top: 0; right: 22%;
  background: white; padding: 10px 16px; border-radius: 20px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.12);
  font-size: 28px;
  animation: bubble-pop 0.3s ease-out;
  z-index: 2;
}
.chat-thought-bubble::after {
  content: ''; position: absolute; bottom: -8px; left: 20px;
  width: 0; height: 0;
  border-left: 8px solid transparent;
  border-right: 8px solid transparent;
  border-top: 10px solid white;
}
@keyframes bubble-pop {
  0% { transform: scale(0); opacity: 0; }
  60% { transform: scale(1.2); }
  100% { transform: scale(1); opacity: 1; }
}
.chat-character-name { font-weight: 700; font-size: 19px; margin-top: 12px; }
.chat-character-status { font-size: 13px; color: #5F5E5A; margin-top: 4px; min-height: 18px; }

/* Detected emoji popup in messages */
.msg-emojis {
  display: flex; gap: 6px; margin-top: 8px; flex-wrap: wrap;
}
.msg-emoji {
  font-size: 24px; padding: 4px 8px;
  background: white; border-radius: 12px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.08);
  animation: emoji-pop 0.4s ease-out;
}
@keyframes emoji-pop {
  0% { transform: scale(0); opacity: 0; }
  60% { transform: scale(1.3); }
  100% { transform: scale(1); opacity: 1; }
}

/* Mood indicator on AI messages */
.msg-mood {
  display: inline-block; font-size: 18px; margin-right: 4px;
  vertical-align: middle;
}

/* Scene/topic illustration above chat */
.chat-scene {
  text-align: center; padding: 14px;
  background: linear-gradient(135deg, #FEF3E2, #FFE5D9);
  border-radius: 14px; margin-bottom: 12px;
}
.chat-scene-icons { font-size: 32px; letter-spacing: 4px; }
.chat-scene-label { font-size: 12px; color: #5F5E5A; margin-top: 4px; }

/* ============ AI GENERATE LEVEL ============ */
.ai-gen-screen { padding: 20px; }
.topic-suggestions {
  display: flex; gap: 8px; flex-wrap: wrap; margin: 12px 0;
}
.topic-chip {
  padding: 8px 14px; background: white;
  border: 1.5px solid #D3D1C7; border-radius: 20px;
  font-size: 14px; cursor: pointer;
  transition: all 0.15s;
}
.topic-chip:hover {
  background: #FEF3E2; border-color: #FAC775;
  transform: translateY(-2px);
}
.topic-input {
  width: 100%; padding: 14px; font-size: 16px;
  border: 2px solid #D3D1C7; border-radius: 12px;
  font-family: inherit;
}
.topic-input:focus {
  outline: none; border-color: #378ADD;
  box-shadow: 0 0 0 3px rgba(55,138,221,0.1);
}
.gen-result-card {
  background: white; border-radius: 16px; padding: 20px;
  margin-top: 16px; box-shadow: 0 4px 12px rgba(0,0,0,0.06);
  animation: slideUp 0.4s;
}