/* ==========================================================================
   MINIGAMES SYSTEM - STYLESHEET (src/components/Minigames/MinigameUI.css)
   Gamified, modern UI/UX for Ngân hàng Giọng nói Số Bắc Trung Bộ
   ========================================================================== */

:root {
  --mg-sky-50: #f0f9ff;
  --mg-sky-100: #e0f2fe;
  --mg-sky-500: #0ea5e9;
  --mg-sky-600: #0284c7;
  --mg-sky-700: #0369a1;

  --mg-emerald-50: #ecfdf5;
  --mg-emerald-100: #d1fae5;
  --mg-emerald-500: #10b981;
  --mg-emerald-600: #059669;

  --mg-amber-50: #fffbeb;
  --mg-amber-100: #fef3c7;
  --mg-amber-500: #f59e0b;
  --mg-amber-600: #d97706;

  --mg-rose-50: #fff1f2;
  --mg-rose-100: #ffe4e6;
  --mg-rose-500: #f43f5e;
  --mg-rose-600: #e11d48;

  --mg-purple-500: #8b5cf6;
  --mg-purple-600: #7c3aed;

  --mg-slate-800: #1e293b;
  --mg-slate-900: #0f172a;
}

/* Base Wrapper Container */
.minigame-wrapper {
  font-family: 'Plus Jakarta Sans', 'Segoe UI', system-ui, -apple-system, sans-serif;
  color: #1e293b;
  max-width: 1050px;
  margin: 0 auto;
  padding: 16px 20px;
}

/* ==========================================
   1. GAME HUB & CARDS
   ========================================== */
.mg-hub-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
  background: linear-gradient(135deg, #0284c7 0%, #0369a1 100%);
  padding: 24px 30px;
  border-radius: 20px;
  color: #ffffff;
  box-shadow: 0 10px 25px -5px rgba(2, 132, 199, 0.3);
}

.mg-hub-header h2 {
  margin: 0 0 6px 0;
  font-size: 24px;
  font-weight: 800;
  display: flex;
  align-items: center;
  gap: 10px;
}

.mg-hub-header p {
  margin: 0;
  opacity: 0.9;
  font-size: 14px;
}

.btn-mg-leaderboard {
  background: #ffffff;
  color: #0284c7;
  border: none;
  font-weight: 700;
  font-size: 14px;
  padding: 10px 20px;
  border-radius: 50px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.12);
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn-mg-leaderboard:hover {
  transform: translateY(-2px);
  background: #f8fafc;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.18);
  color: #0369a1;
}

/* 3 Cards Grid */
.mg-cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}

.mg-card {
  background: #ffffff;
  border: 2px solid #e2e8f0;
  border-radius: 20px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.mg-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 6px;
}

.mg-card.card-g1::before { background: linear-gradient(90deg, #0ea5e9, #0284c7); }
.mg-card.card-g2::before { background: linear-gradient(90deg, #10b981, #059669); }
.mg-card.card-g3::before { background: linear-gradient(90deg, #f59e0b, #d97706); }

.mg-card:hover {
  transform: translateY(-6px);
  border-color: transparent;
  box-shadow: 0 16px 32px -8px rgba(15, 23, 42, 0.12);
}

.mg-card-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: 30px;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  margin-bottom: 14px;
  width: fit-content;
}

.card-g1 .mg-card-badge { background: #e0f2fe; color: #0284c7; }
.card-g2 .mg-card-badge { background: #d1fae5; color: #059669; }
.card-g3 .mg-card-badge { background: #fef3c7; color: #d97706; }

.mg-card-icon {
  font-size: 38px;
  margin-bottom: 16px;
}

.card-g1 .mg-card-icon { color: #0284c7; }
.card-g2 .mg-card-icon { color: #059669; }
.card-g3 .mg-card-icon { color: #d97706; }

.mg-card-title {
  font-size: 20px;
  font-weight: 800;
  margin: 0 0 10px 0;
  color: #0f172a;
}

.mg-card-desc {
  font-size: 14px;
  color: #64748b;
  line-height: 1.5;
  margin: 0 0 20px 0;
}

.mg-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
  padding-top: 16px;
  border-top: 1px solid #f1f5f9;
}

.mg-high-score {
  font-size: 13px;
  font-weight: 700;
  color: #475569;
}

.mg-high-score span {
  font-size: 15px;
  color: #0f172a;
  font-weight: 800;
}

.btn-mg-play {
  background: #0ea5e9;
  color: #ffffff;
  border: none;
  font-weight: 700;
  font-size: 14px;
  padding: 10px 22px;
  border-radius: 12px;
  cursor: pointer;
  transition: all 0.2s ease;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.card-g1 .btn-mg-play { background: #0284c7; }
.card-g2 .btn-mg-play { background: #10b981; }
.card-g3 .btn-mg-play { background: #f59e0b; }

.btn-mg-play:hover {
  filter: brightness(1.08);
  transform: scale(1.04);
}

/* ==========================================
   2. GAME ARENA (ACTIVE GAME PLAY AREA)
   ========================================== */
.mg-arena {
  background: #ffffff;
  border-radius: 24px;
  border: 1px solid #e2e8f0;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
  padding: 28px;
  display: none;
  animation: popIn 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.mg-arena.active {
  display: block;
}

.mg-arena-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 2px solid #f1f5f9;
}

.btn-mg-back {
  background: #f1f5f9;
  color: #475569;
  border: none;
  font-weight: 700;
  font-size: 13px;
  padding: 8px 16px;
  border-radius: 30px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all 0.2s ease;
}

.btn-mg-back:hover {
  background: #e2e8f0;
  color: #0f172a;
}

.mg-arena-title {
  font-size: 18px;
  font-weight: 800;
  color: #0f172a;
  margin: 0;
}

.mg-arena-stats {
  display: flex;
  gap: 12px;
}

.mg-stat-pill {
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.mg-stat-pill.score { background: #e0f2fe; color: #0284c7; }
.mg-stat-pill.wrong { background: #ffe4e6; color: #e11d48; }

/* ==========================================
   GAME 1: TRẮC NGHIỆM + TIMER + STREAK
   ========================================== */
.mg-g1-container {
  max-width: 720px;
  margin: 0 auto;
}

/* Timer progress bar */
.mg-timer-track {
  width: 100%;
  height: 8px;
  background: #e2e8f0;
  border-radius: 10px;
  overflow: hidden;
  margin-bottom: 20px;
}

.mg-timer-fill {
  height: 100%;
  width: 100%;
  background: linear-gradient(90deg, #10b981, #0ea5e9);
  border-radius: 10px;
  transition: width 0.1s linear, background-color 0.3s ease;
}

.mg-timer-fill.warning {
  background: linear-gradient(90deg, #f59e0b, #ef4444) !important;
}

/* Streak Banner */
.mg-streak-banner {
  display: none;
  background: linear-gradient(135deg, #f59e0b, #d97706);
  color: #ffffff;
  padding: 10px 18px;
  border-radius: 12px;
  font-weight: 800;
  font-size: 14px;
  text-align: center;
  margin-bottom: 20px;
  box-shadow: 0 4px 15px rgba(245, 158, 11, 0.4);
  animation: pulseGlow 1.2s infinite alternate;
}

.mg-streak-banner.active {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.mg-question-card {
  background: #f8fafc;
  border: 2px solid #e2e8f0;
  border-radius: 18px;
  padding: 28px;
  text-align: center;
  margin-bottom: 24px;
}

.mg-word-tag {
  display: inline-block;
  background: #e0f2fe;
  color: #0369a1;
  font-weight: 700;
  font-size: 12px;
  padding: 4px 12px;
  border-radius: 20px;
  margin-bottom: 12px;
  text-transform: uppercase;
}

.mg-target-word {
  font-size: 32px;
  font-weight: 900;
  color: #0284c7;
  margin: 4px 0 8px 0;
  letter-spacing: -0.5px;
}

.mg-options-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-bottom: 20px;
}

@media (max-width: 640px) {
  .mg-options-grid {
    grid-template-columns: 1fr;
  }
}

.btn-mg-choice {
  background: #ffffff;
  border: 2px solid #cbd5e1;
  color: #1e293b;
  font-weight: 700;
  font-size: 15px;
  padding: 16px 20px;
  border-radius: 14px;
  cursor: pointer;
  text-align: left;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  gap: 12px;
}

.btn-mg-choice:hover:not(:disabled) {
  border-color: #0284c7;
  background: #f0f9ff;
  color: #0284c7;
  transform: translateY(-2px);
}

.btn-mg-choice.correct {
  background: #d1fae5 !important;
  border-color: #10b981 !important;
  color: #047857 !important;
}

.btn-mg-choice.wrong {
  background: #ffe4e6 !important;
  border-color: #f43f5e !important;
  color: #be123c !important;
}

.btn-mg-choice:disabled {
  cursor: default;
}

/* Context Explanation Popup */
.mg-explanation-box {
  display: none;
  background: #f0f9ff;
  border: 2px solid #bae6fd;
  border-radius: 16px;
  padding: 20px;
  margin-top: 20px;
  animation: popIn 0.25s ease-out;
}

.mg-explanation-box.active {
  display: block;
}

.mg-explanation-header {
  font-weight: 800;
  font-size: 15px;
  color: #0369a1;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.mg-explanation-body {
  font-size: 14px;
  color: #334155;
  line-height: 1.6;
}

.mg-explanation-example {
  background: #ffffff;
  padding: 10px 14px;
  border-radius: 10px;
  border-left: 4px solid #0284c7;
  font-style: italic;
  margin-top: 10px;
  color: #0f172a;
}

.btn-mg-next {
  background: #0284c7;
  color: #ffffff;
  border: none;
  font-weight: 800;
  font-size: 15px;
  padding: 12px 28px;
  border-radius: 12px;
  cursor: pointer;
  margin-top: 16px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all 0.2s ease;
}

.btn-mg-next:hover {
  background: #0369a1;
  transform: translateY(-2px);
}

/* ==========================================
   GAME 2: GHÉP CẶP TỪ VỰNG
   ========================================== */
.mg-matching-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  max-width: 800px;
  margin: 0 auto;
}

.mg-matching-col {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.mg-col-header {
  font-weight: 800;
  font-size: 14px;
  text-transform: uppercase;
  color: #64748b;
  text-align: center;
  margin-bottom: 6px;
  letter-spacing: 0.5px;
}

.mg-match-card {
  background: #ffffff;
  border: 2px solid #e2e8f0;
  border-radius: 16px;
  padding: 16px 20px;
  font-weight: 700;
  font-size: 16px;
  color: #1e293b;
  cursor: pointer;
  text-align: center;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  user-select: none;
  min-height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.03);
}

.mg-match-card:hover:not(.matched) {
  border-color: #10b981;
  transform: translateY(-2px);
  box-shadow: 0 6px 15px rgba(16, 185, 129, 0.15);
}

.mg-match-card.selected {
  border-color: #0284c7 !important;
  background: #e0f2fe !important;
  color: #0369a1 !important;
  box-shadow: 0 0 0 3px rgba(2, 132, 199, 0.25) !important;
  transform: scale(1.02);
}

.mg-match-card.matched {
  background: #d1fae5 !important;
  border-color: #10b981 !important;
  color: #047857 !important;
  opacity: 0.35;
  pointer-events: none;
  transform: scale(0.96);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.mg-match-card.wrong {
  background: #ffe4e6 !important;
  border-color: #f43f5e !important;
  color: #be123c !important;
  animation: shake 0.5s cubic-bezier(0.36, 0.07, 0.19, 0.97) both;
}

/* ==========================================
   GAME 3: Ô CHỮ PHƯƠNG NGỮ
   ========================================== */
.mg-g3-container {
  max-width: 680px;
  margin: 0 auto;
  text-align: center;
}

.mg-clue-box {
  background: #fffbeb;
  border: 2px dashed #f59e0b;
  border-radius: 18px;
  padding: 20px 24px;
  margin-bottom: 24px;
}

.mg-clue-label {
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
  color: #d97706;
  margin-bottom: 6px;
  display: block;
}

.mg-clue-text {
  font-size: 17px;
  font-weight: 700;
  color: #78350f;
  line-height: 1.5;
}

.mg-word-slots {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 30px;
  min-height: 64px;
}

.mg-letter-box {
  width: 52px;
  height: 58px;
  border: 2px solid #cbd5e1;
  border-radius: 12px;
  background: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  font-weight: 900;
  color: #0f172a;
  text-transform: uppercase;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
  transition: all 0.2s ease;
}

.mg-letter-box.filled {
  border-color: #f59e0b;
  background: #fef3c7;
  color: #b45309;
}

.mg-letter-box.active {
  border-color: #0284c7;
  box-shadow: 0 0 0 3px rgba(2, 132, 199, 0.25);
  transform: translateY(-3px);
}

.mg-letter-box.space {
  border: none;
  background: transparent;
  width: 24px;
  box-shadow: none;
}

.mg-letter-box.solved {
  border-color: #10b981;
  background: #d1fae5;
  color: #047857;
}

.mg-letter-box.revealed {
  border-color: #f43f5e;
  background: #ffe4e6;
  color: #be123c;
}

/* Player Badge in Hub Header */
.mg-player-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(4px);
  border: 1px solid rgba(255, 255, 255, 0.35);
  padding: 6px 14px;
  border-radius: 30px;
  font-size: 13px;
  color: #ffffff;
}

.btn-mg-edit-name {
  background: #ffffff;
  color: #0284c7;
  border: none;
  font-weight: 700;
  font-size: 12px;
  padding: 4px 10px;
  border-radius: 20px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: all 0.2s ease;
}

.btn-mg-edit-name:hover {
  background: #f0f9ff;
  color: #0369a1;
  transform: translateY(-1px);
}

.btn-mg-edit-name.highlight {
  background: #f59e0b;
  color: #ffffff;
  font-size: 13px;
  padding: 6px 14px;
}

.btn-mg-edit-name.highlight:hover {
  background: #d97706;
}

/* Virtual On-Screen Keypad */
.mg-virtual-keypad {
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-width: 600px;
  margin: 0 auto;
}

.mg-key-row {
  display: flex;
  justify-content: center;
  gap: 6px;
}

.btn-mg-key {
  background: #f1f5f9;
  border: 1px solid #cbd5e1;
  border-radius: 8px;
  padding: 10px 12px;
  font-weight: 700;
  font-size: 15px;
  color: #1e293b;
  cursor: pointer;
  min-width: 38px;
  transition: all 0.15s ease;
  user-select: none;
}

.btn-mg-key:hover:not(:disabled) {
  background: #e2e8f0;
  color: #0f172a;
  transform: translateY(-1px);
}

.btn-mg-key:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-mg-key.wide {
  padding: 10px 18px;
  background: #e2e8f0;
  font-size: 13px;
}

.btn-mg-key.btn-reveal-cw {
  background: #ef4444;
  color: #ffffff;
  border-color: #dc2626;
}

.btn-mg-key.btn-reveal-cw:hover:not(:disabled) {
  background: #dc2626;
  color: #ffffff;
}

.btn-mg-key.btn-submit-cw {
  background: #f59e0b;
  color: #ffffff;
  border-color: #d97706;
}

.btn-mg-key.btn-submit-cw:hover:not(:disabled) {
  background: #d97706;
  color: #ffffff;
}

/* ==========================================
   3. MODAL DIALOGS (NON-BLOCKING SAFETY)
   ========================================== */
.mg-modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  width: 100vw;
  height: 100vh;
  z-index: 99999;
  background: rgba(15, 23, 42, 0.7);
  backdrop-filter: blur(5px);
  /* CRITICAL SAFETY RULES TO PREVENT PAGE FREEZE */
  display: none !important;
  pointer-events: none !important;
  opacity: 0;
  transition: opacity 0.25s ease;
}

.mg-modal-backdrop.active {
  display: flex !important;
  pointer-events: auto !important;
  opacity: 1;
  align-items: center;
  justify-content: center;
}

.mg-modal-card {
  background: #ffffff;
  border-radius: 24px;
  width: 90%;
  max-width: 520px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.35);
  padding: 30px;
  position: relative;
  animation: popIn 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.mg-modal-header {
  text-align: center;
  margin-bottom: 20px;
}

.mg-modal-header h3 {
  margin: 0 0 6px 0;
  font-size: 22px;
  font-weight: 800;
  color: #0f172a;
}

.mg-modal-header p {
  margin: 0;
  color: #64748b;
  font-size: 14px;
}

.mg-modal-close {
  position: absolute;
  top: 18px;
  right: 20px;
  background: #f1f5f9;
  border: none;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  font-size: 16px;
  color: #64748b;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
}

.mg-modal-close:hover {
  background: #ffe4e6;
  color: #e11d48;
}

/* Start Modal Form */
.mg-nickname-input {
  width: 100%;
  padding: 14px 18px;
  border: 2px solid #cbd5e1;
  border-radius: 14px;
  font-size: 16px;
  font-weight: 700;
  color: #0f172a;
  margin-bottom: 16px;
  outline: none;
  box-sizing: border-box;
  transition: border-color 0.2s ease;
}

.mg-nickname-input:focus {
  border-color: #0284c7;
  box-shadow: 0 0 0 3px rgba(2, 132, 199, 0.2);
}

.mg-welcome-banner {
  background: #e0f2fe;
  color: #0369a1;
  padding: 12px 16px;
  border-radius: 12px;
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 16px;
  text-align: center;
}

.btn-mg-submit-start {
  width: 100%;
  background: linear-gradient(135deg, #0284c7, #0369a1);
  color: #ffffff;
  border: none;
  padding: 14px;
  border-radius: 14px;
  font-size: 16px;
  font-weight: 800;
  cursor: pointer;
  transition: all 0.2s ease;
  box-shadow: 0 4px 12px rgba(2, 132, 199, 0.3);
}

.btn-mg-submit-start:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(2, 132, 199, 0.4);
}

/* Results Dialog */
.mg-result-badge {
  font-size: 48px;
  margin-bottom: 10px;
  text-align: center;
}

.mg-result-scores {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 12px;
  margin: 20px 0;
  background: #f8fafc;
  padding: 16px;
  border-radius: 16px;
  border: 1px solid #e2e8f0;
}

.mg-score-box {
  text-align: center;
}

.mg-score-val {
  font-size: 22px;
  font-weight: 900;
  color: #0284c7;
  display: block;
}

.mg-score-lbl {
  font-size: 11px;
  font-weight: 700;
  color: #64748b;
  text-transform: uppercase;
}

/* Leaderboard Modal */
.mg-leaderboard-tabs {
  display: flex;
  background: #f1f5f9;
  padding: 4px;
  border-radius: 12px;
  margin-bottom: 18px;
}

.btn-mg-tab {
  flex: 1;
  padding: 10px;
  border: none;
  background: transparent;
  font-weight: 700;
  font-size: 14px;
  color: #64748b;
  border-radius: 10px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-mg-tab.active {
  background: #ffffff;
  color: #0284c7;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.08);
}

.mg-lb-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.mg-lb-row {
  display: flex;
  align-items: center;
  padding: 12px 16px;
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 14px;
  transition: all 0.15s ease;
}

.mg-lb-row.top-1 { background: #fefce8; border-color: #fde047; }
.mg-lb-row.top-2 { background: #f8fafc; border-color: #cbd5e1; }
.mg-lb-row.top-3 { background: #fff7ed; border-color: #fdba74; }

.mg-lb-rank {
  font-size: 18px;
  font-weight: 900;
  width: 36px;
  text-align: center;
}

.mg-lb-info {
  flex: 1;
  margin-left: 12px;
}

.mg-lb-name {
  font-weight: 800;
  font-size: 15px;
  color: #0f172a;
}

.mg-lb-sub {
  font-size: 12px;
  color: #64748b;
}

.mg-lb-score {
  font-weight: 900;
  font-size: 16px;
  color: #0284c7;
  text-align: right;
}

/* Confetti Canvas overlay */
#mg-confetti-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 100000;
}

/* KEYFRAMES ANIMATIONS */
@keyframes shake {
  10%, 90% { transform: translate3d(-2px, 0, 0); }
  20%, 80% { transform: translate3d(4px, 0, 0); }
  30%, 50%, 70% { transform: translate3d(-6px, 0, 0); }
  40%, 60% { transform: translate3d(6px, 0, 0); }
}

@keyframes pulseGlow {
  0% { transform: scale(1); box-shadow: 0 4px 15px rgba(245, 158, 11, 0.4); }
  100% { transform: scale(1.02); box-shadow: 0 6px 22px rgba(245, 158, 11, 0.7); }
}

@keyframes popIn {
  0% { transform: scale(0.92); opacity: 0; }
  100% { transform: scale(1); opacity: 1; }
}

/* Mobile Responsive Optimizations for Minigames (<= 768px) */
@media screen and (max-width: 768px) {
  .minigame-wrapper {
    padding: 10px 8px !important;
  }

  .mg-hub-header {
    flex-direction: column !important;
    align-items: flex-start !important;
    gap: 14px !important;
    padding: 18px 16px !important;
  }

  .mg-hub-header h2 {
    font-size: 20px !important;
  }

  .btn-mg-leaderboard {
    width: 100% !important;
    justify-content: center !important;
    min-height: 44px !important;
  }

  .mg-cards-grid {
    grid-template-columns: 1fr !important;
    gap: 16px !important;
  }

  .mg-card {
    padding: 18px !important;
  }

  .mg-arena {
    padding: 16px 12px !important;
    border-radius: 16px !important;
  }

  .mg-arena-topbar {
    flex-direction: column !important;
    align-items: flex-start !important;
    gap: 10px !important;
  }

  .mg-arena-stats {
    width: 100% !important;
    justify-content: space-between !important;
  }

  .mg-options-grid {
    grid-template-columns: 1fr !important;
    gap: 10px !important;
  }

  .btn-mg-choice {
    padding: 14px 16px !important;
    min-height: 50px !important;
    font-size: 14px !important;
  }

  .mg-matching-grid {
    grid-template-columns: 1fr !important;
    gap: 16px !important;
  }

  .mg-match-card {
    min-height: 50px !important;
    font-size: 14px !important;
    padding: 12px 14px !important;
  }

  .mg-word-slots {
    gap: 6px !important;
  }

  .mg-letter-box {
    width: 40px !important;
    height: 46px !important;
    font-size: 18px !important;
  }

  .btn-mg-key {
    min-width: 32px !important;
    padding: 8px 6px !important;
    font-size: 13px !important;
    min-height: 40px !important;
  }

  .mg-modal-card {
    width: 92% !important;
    max-width: 92% !important;
    max-height: 85vh !important;
    overflow-y: auto !important;
    padding: 20px 16px !important;
    margin: 12px auto !important;
  }

  .mg-result-scores {
    grid-template-columns: 1fr !important;
    gap: 8px !important;
  }

  .btn-mg-submit-start {
    min-height: 48px !important;
  }
}