.quiz-led-progress { display: flex; gap: 4px; height: 6px; width: 100%; align-items: center; }
.led-segment { flex: 1; height: 100%; border-radius: 999px; background: rgba(37, 99, 235, 0.12); transition: all 0.3s var(--quiz-ease); box-shadow: inset 0 1px 2px rgba(0,0,0,0.05); }
.led-segment.active { background: #22c55e; box-shadow: 0 0 8px rgba(34, 197, 94, 0.6), inset 0 1px 2px rgba(255,255,255,0.4); transform: scaleY(1.3); }
.quiz-react-root {
  padding: 18px 16px 88px;
}

:root {
  --quiz-primary: #0f9d58;
  --quiz-primary-soft: #ebf9f1;
  --quiz-slate: #0f172a;
  --quiz-muted: #5b6b82;
  --quiz-border: rgba(15, 23, 42, 0.11);
  --quiz-ease: cubic-bezier(0.4, 0, 0.2, 1);
  --quiz-surface: #eef3fb;
  --quiz-surface-alt: #e8eefb;
  --quiz-accent: #0f4cbd;
  --quiz-accent-soft: rgba(15, 76, 189, 0.16);
  --quiz-glow: rgba(15, 157, 88, 0.22);
}

@keyframes fluid-bg {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

.page-quiz .main-content {
  background: linear-gradient(135deg, #e0f2fe, #fce7f3, #dbeafe, #dcfce7);
  background-size: 400% 400%;
  animation: fluid-bg 15s ease infinite;
  min-height: 100vh;
  transition: padding 0.5s var(--quiz-ease);
}

.page-quiz,
.page-quiz * {
  box-sizing: border-box;
}

.page-quiz {
  overflow-x: hidden;
}

.quiz-page {
  max-width: 100%;
  overflow-x: hidden;
  padding: 14px 0 30px;
}

.quiz-focus .quiz-instructions {
  display: none;
}

.quiz-focus .quiz-react-root {
  padding-top: 8px;
}

.quiz-focus .mobile-header,
.quiz-focus .mobile-nav {
  opacity: 0 !important;
  pointer-events: none !important;
  transform: translateY(-200%);
  transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.quiz-focus .mobile-nav {
  transform: translateY(200%);
}

.quiz-modal {
  position: fixed;
  inset: 0;
  z-index: 1200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
}

.quiz-modal-overlay {
  display: none;
}

.quiz-modal-card {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100%;
  max-height: none;
  overflow: auto;
  border-radius: 0;
  background: linear-gradient(180deg, #ffffff 0%, #eef2ff 100%);
  border: none;
  box-shadow: none;
  padding: 12px 14px 20px;
}

.quiz-modal-close {
  position: sticky;
  top: 8px;
  margin-left: auto;
  margin-bottom: 8px;
  width: 40px;
  height: 40px;
  border-radius: 999px;
  border: 1px solid rgba(37, 99, 235, 0.2);
  background: rgba(255, 255, 255, 0.9);
  color: #1f2937;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: transform 0.18s var(--quiz-ease), box-shadow 0.18s var(--quiz-ease);
}

.quiz-modal-close:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 18px rgba(37, 99, 235, 0.2);
}

.quiz-modal .quiz-card {
  box-shadow: none;
  border: none;
  padding: 10px 6px;
  background: transparent;
}

.quiz-modal .quiz-question {
  border: 1px solid rgba(15, 76, 189, 0.18);
  box-shadow: 0 18px 32px rgba(15, 23, 42, 0.14);
  background: linear-gradient(155deg, rgba(255, 255, 255, 0.98), rgba(234, 244, 255, 0.98));
  padding: 14px 12px 16px;
  border-left: none;
}

.quiz-page-inner {
  max-width: 1020px;
  margin: 0 auto;
  padding: 0 12px;
  display: grid;
  gap: 14px;
}

.quiz-banner {
  display: grid;
  gap: 8px;
}

.quiz-content {
  display: grid;
  gap: 10px;
}

.quiz-fallback {
  padding: 16px;
  border-radius: 14px;
  background: linear-gradient(135deg, #e0f2fe, #eef2ff 60%, #ffffff 100%);
  border: 1px solid rgba(37, 99, 235, 0.2);
  color: #1e3a8a;
  font-weight: 600;
  text-align: center;
}

.quiz-instructions {
  max-width: 980px;
  margin: 0 auto 8px;
  background: linear-gradient(135deg, #e8f0ff, #f0fdf4 65%);
  border: 1px solid var(--quiz-border);
  border-radius: 16px;
  padding: 10px 12px;
  box-shadow: 0 8px 18px rgba(15, 23, 42, 0.06);
}

.quiz-instructions-toggle {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
  pointer-events: auto;
}

.quiz-instructions-toggle i {
  transition: transform 0.2s var(--quiz-ease);
}

.quiz-instructions-toggle.collapsed i {
  transform: rotate(-90deg);
}

.quiz-instructions-title {
  font-weight: 700;
  margin-bottom: 8px;
  color: #0f172a;
}

.quiz-instructions-body.collapsed {
  display: none;
}

.quiz-instructions-list {
  margin: 0;
  padding-left: 18px;
  color: #475569;
  font-size: 0.9rem;
  line-height: 1.6;
}

.quiz-instructions-tips {
  margin-top: 10px;
  display: grid;
  gap: 6px;
  font-size: 0.88rem;
  color: #475569;
}

.quiz-tip {
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(37, 99, 235, 0.12);
  border-radius: 12px;
  padding: 8px 10px;
}

.quiz-faq {
  margin-top: 12px;
  display: grid;
  gap: 6px;
  font-size: 0.85rem;
  color: #64748b;
}

.quiz-faq-title {
  font-weight: 700;
  color: #0f172a;
}

.quiz-shell {
  max-width: 980px;
  margin: 0 auto;
  display: grid;
  gap: 16px;
}

.quiz-shell-top {
  display: grid;
  gap: 14px;
  scroll-margin-top: 80px;
}

.quiz-countdown-bar {
  border-radius: 18px;
  padding: 14px 15px;
  border: 1px solid rgba(15, 23, 42, 0.08);
  background: linear-gradient(140deg, #0f172a 0%, #1d4ed8 48%, #0f766e 100%);
  box-shadow: 0 16px 28px rgba(15, 23, 42, 0.24);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  position: relative;
  overflow: hidden;
}

.quiz-countdown-bar::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at top right, rgba(255, 255, 255, 0.24), transparent 60%);
  pointer-events: none;
}

.quiz-countdown-meta {
  display: grid;
  gap: 6px;
}

.quiz-countdown-label {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #64748b;
  font-weight: 700;
}

.quiz-countdown-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.18);
  color: #e2e8f0;
  font-size: 0.66rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.quiz-countdown-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 1.05rem;
  font-weight: 700;
  color: #f8fafc;
}

.quiz-countdown-title strong {
  font-size: 1.08rem;
  letter-spacing: 0.2px;
  min-width: 0;
}

.quiz-timer-pill {
  padding: 4px 10px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.2);
  color: #e2e8f0;
  font-weight: 700;
  font-size: 0.82rem;
  line-height: 1.35;
  white-space: normal;
  text-align: right;
}

.quiz-countdown-headline {
  font-size: 0.92rem;
  font-weight: 600;
  color: #e2e8f0;
  line-height: 1.5;
  max-width: 34ch;
}

.quiz-countdown-note {
  font-size: 0.88rem;
  color: rgba(226, 232, 240, 0.88);
  line-height: 1.55;
  max-width: 36ch;
}

.quiz-countdown-timer {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(59, 130, 246, 0.16);
  color: #1e3a8a;
  font-size: 0.85rem;
  font-weight: 700;
  animation: subtlePulse 2s ease-in-out infinite alternate;
}

.quiz-share-card {
  display: flex;
  justify-content: flex-start;
  align-items: center;
  padding: 8px 0 2px;
}

.quiz-share-btn {
  margin: 0;
  padding: 8px 14px;
  border-radius: 999px;
  border: 1px solid rgba(30, 64, 175, 0.22);
  background: #ffffff;
  color: #1e3a8a;
  width: fit-content;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 0.82rem;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.2s var(--quiz-ease), box-shadow 0.2s var(--quiz-ease), border-color 0.2s var(--quiz-ease);
}

.quiz-share-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 18px rgba(37, 99, 235, 0.14);
  border-color: rgba(37, 99, 235, 0.28);
}

.quiz-side-by-side {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 12px;
  justify-items: center;
}

.quiz-side-by-side .quiz-card {
  padding: 14px 13px;
  min-height: 150px;
  width: 100%;
}

.quiz-side-by-side .xp-card,
.quiz-side-by-side .quest-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.quiz-side-by-side .xp-card .xp-bar {
  height: 7px;
}

.quiz-card {
  background: linear-gradient(180deg, #ffffff 0%, #f3f6fb 100%);
  border-radius: 18px;
  padding: 14px;
  border: 1px solid rgba(15, 23, 42, 0.1);
  box-shadow: 0 10px 24px rgba(15, 23, 42, 0.1);
  transition: all 0.3s var(--quiz-ease);
  will-change: transform, opacity, box-shadow;
  position: relative;
  overflow: hidden;
}

.quiz-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, rgba(37, 99, 235, 0.45), rgba(34, 197, 94, 0.45));
  opacity: 0.7;
}

.quiz-side-card {
  background: linear-gradient(160deg, #eff4ff 0%, #eaf8f0 100%);
  border: 1px solid rgba(15, 76, 189, 0.14);
}

.quiz-main {
  display: grid;
  gap: 14px;
}

.quiz-card h3 {
  margin: 0 0 10px;
  font-size: 1.09rem;
  letter-spacing: 0.01em;
}

.xp-card {
  display: grid;
  gap: 10px;
}

.xp-bar {
  height: 10px;
  background: rgba(15, 76, 189, 0.12);
  border-radius: 999px;
  overflow: hidden;
}

.xp-bar span {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, #0f9d58, #22c55e, #2563eb);
  box-shadow: 0 0 14px var(--quiz-glow);
}

.streak-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  color: #0f172a;
}

.quiz-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 8px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--quiz-primary);
  text-decoration: none;
  transition: color 0.2s var(--quiz-ease), transform 0.2s var(--quiz-ease);
}

.quiz-link:hover {
  color: #15803d;
  transform: translateY(-1px);
}

.quest-item {
  display: grid;
  gap: 8px;
  font-size: 0.9rem;
  padding: 10px 12px;
  border: 1px solid rgba(37, 99, 235, 0.12);
  border-radius: 12px;
  transition: all 0.25s var(--quiz-ease);
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.9), rgba(239, 246, 255, 0.7));
  margin: 0;
  width: 100%;
}

.quest-card {
  text-align: left;
}

.quest-card h3 {
  text-align: left;
}

.quest-hint {
  text-align: left;
}

.quest-item:hover {
  background: #e0f2fe;
  transform: translateY(-1px);
}

.quest-item.is-single {
  animation: quest-swap 0.35s var(--quiz-ease);
}

.quest-item.quest-done .quest-meta {
  color: #166534;
  font-weight: 600;
}

.quest-meta {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 8px;
  position: relative;
  padding-left: 18px;
}

.quest-meta span:first-child {
  color: #0f172a;
  font-weight: 600;
  line-height: 1.3;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.quest-meta span:last-child {
  white-space: nowrap;
  font-weight: 600;
  color: #1e293b;
}

.quest-item.quest-done .quest-meta::before {
  content: '✔';
  position: absolute;
  left: 0;
  top: 2px;
  font-size: 0.8rem;
  color: #16a34a;
  animation: check-pop 0.3s var(--quiz-ease);
}

.quest-bar {
  height: 7px;
  border-radius: 999px;
  background: rgba(37, 99, 235, 0.12);
  overflow: hidden;
}

.quest-bar span {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, #16a34a, #22c55e);
  transition: width 0.35s var(--quiz-ease);
}

.quest-hint {
  margin-top: 8px;
  font-size: 0.82rem;
  color: #475569;
}

.quest-card.is-celebrating {
  animation: quest-glow 0.6s var(--quiz-ease);
}

.quiz-feedback {
  font-size: 0.9rem;
  padding: 10px 12px;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.95), rgba(239, 246, 255, 0.7));
  color: #334155;
  border: 1px solid rgba(15, 23, 42, 0.08);
}

.quiz-feedback.positive {
  background: linear-gradient(135deg, #ecfdf5, #f0fdf4);
  color: #166534;
  border-color: rgba(34, 197, 94, 0.3);
}

.quiz-feedback.negative {
  background: linear-gradient(135deg, #fef2f2, #fff1f2);
  color: #b91c1c;
  border-color: rgba(239, 68, 68, 0.3);
}

.quiz-dashboard.pulse-xp .xp-bar span,
.quiz-dashboard.pulse-xp .xp-card h3 {
  animation: pulse-green 0.45s ease;
}

.quiz-dashboard.pulse-streak .streak-badge {
  animation: pulse-amber 0.45s ease;
}

.quiz-dashboard.pulse-quest .quest-item {
  animation: pulse-soft 0.5s ease;
}

.quiz-dashboard.pulse-badge .badge-chip {
  animation: pulse-soft 0.5s ease;
}

@keyframes pulse-green {
  0% { transform: scale(1); }
  50% { transform: scale(1.03); }
  100% { transform: scale(1); }
}

@keyframes pulse-amber {
  0% { transform: scale(1); }
  50% { transform: scale(1.05); }
  100% { transform: scale(1); }
}

@keyframes pulse-soft {
  0% { box-shadow: 0 0 0 rgba(34, 197, 94, 0.0); }
  50% { box-shadow: 0 0 0 6px rgba(34, 197, 94, 0.12); }
  100% { box-shadow: 0 0 0 rgba(34, 197, 94, 0.0); }
}
.quiz-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.quiz-tile {
  appearance: none;
  width: 100%;
  text-align: left;
  font: inherit;
  padding: 16px;
  min-height: 106px;
  border-radius: 16px;
  border: 1px solid rgba(15, 76, 189, 0.18);
  background: linear-gradient(138deg, #ffffff 0%, #f2f6ff 68%, #ebf6ef 100%);
  cursor: pointer;
  transition: transform 0.3s var(--quiz-ease), box-shadow 0.3s var(--quiz-ease);
  display: grid;
  gap: 6px;
  position: relative;
}

.quiz-tile:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 24px rgba(15, 76, 189, 0.16);
}

.quiz-tile.is-locked {
  cursor: not-allowed;
  opacity: 0.7;
  box-shadow: none;
  transform: none;
}

.quiz-tile:disabled {
  cursor: not-allowed;
}

.quiz-tile.is-locked:hover {
  transform: none;
  box-shadow: none;
}

.quiz-tile-badge {
  position: absolute;
  top: 10px;
  right: 12px;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 4px 8px;
  border-radius: 999px;
  background: rgba(22, 163, 74, 0.14);
  color: #166534;
}

.quiz-tile-badge.reset {
  background: rgba(59, 130, 246, 0.14);
  color: #1d4ed8;
}

.quiz-info-note {
  margin-top: 10px;
  font-size: 0.85rem;
  color: #475569;
  background: rgba(15, 118, 110, 0.08);
  border: 1px solid rgba(15, 118, 110, 0.2);
  padding: 8px 10px;
  border-radius: 10px;
}

.quiz-info-note.reset {
  background: rgba(59, 130, 246, 0.08);
  border-color: rgba(59, 130, 246, 0.25);
  color: #1e3a8a;
}

.quiz-list-card {
  border-color: rgba(15, 76, 189, 0.14);
}

.quiz-reload-btn {
  width: 100%;
  margin-top: 12px;
  min-height: 50px;
  border-radius: 12px;
  border: 1px solid rgba(15, 23, 42, 0.16);
  background: #fff;
  color: #0f172a;
  font-size: 0.9rem;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.2s var(--quiz-ease), box-shadow 0.2s var(--quiz-ease), border-color 0.2s var(--quiz-ease);
}

.quiz-reload-btn:hover {
  transform: translateY(-1px);
  border-color: rgba(15, 76, 189, 0.32);
  box-shadow: 0 8px 14px rgba(15, 76, 189, 0.14);
}

.quiz-question {
  display: grid;
  gap: 16px;
  position: relative;
  overflow: hidden;
  transition: transform 0.28s var(--quiz-ease), box-shadow 0.28s var(--quiz-ease), border-color 0.28s var(--quiz-ease), background 0.28s var(--quiz-ease);
  border: 1px solid rgba(255, 255, 255, 0.5);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.35);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  box-shadow: 0 20px 40px rgba(15, 23, 42, 0.12), inset 0 2px 4px rgba(255, 255, 255, 0.5);
  will-change: transform, opacity;
}

.quiz-question::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(115deg, rgba(255, 255, 255, 0.72), rgba(255, 255, 255, 0));
  pointer-events: none;
  opacity: 0.7;
}

.quiz-question::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at top right, rgba(56, 189, 248, 0.16), transparent 54%);
  pointer-events: none;
}

.quiz-question-meta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.quiz-header-actions {
  display: inline-flex;
  align-items: flex-start;
  gap: 8px;
}

.quiz-sound-toggle {
  width: 30px;
  height: 30px;
  border-radius: 999px;
  border: 1px solid rgba(37, 99, 235, 0.16);
  background: rgba(255, 255, 255, 0.9);
  color: #0f172a;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s var(--quiz-ease);
}

.quiz-sound-toggle:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 16px rgba(15, 23, 42, 0.12);
}

.quiz-sound-toggle.muted {
  opacity: 0.6;
}

.streak-avatar {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 8px;
  border-radius: 999px;
  border: 1px solid rgba(37, 99, 235, 0.16);
  background: rgba(255, 255, 255, 0.85);
  color: #0f172a;
  font-size: 0.75rem;
  font-weight: 700;
}

.streak-avatar i {
  color: #f97316;
}

.streak-avatar.pulse {
  animation: avatar-pop 0.4s var(--quiz-ease);
}

.quiz-progress-wrap {
  position: relative;
  z-index: 3;
  background: rgba(255, 255, 255, 0.78);
  backdrop-filter: blur(8px);
  padding: 7px 10px;
  border-radius: 14px;
  border: 1px solid rgba(148, 163, 184, 0.18);
  margin-bottom: 2px;
}

.quiz-led-progress {
  display: flex;
  gap: 4px;
  height: 6px;
  width: 100%;
  align-items: center;
}

.quiz-progress span {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, #22c55e, #3b82f6);
  transition: width 0.35s var(--quiz-ease);
}

.quiz-progress-dot {
  position: absolute;
  top: 50%;
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: #22c55e;
  box-shadow: 0 0 0 4px rgba(34, 197, 94, 0.2);
  transform: translate(-50%, -50%);
  transition: left 0.35s var(--quiz-ease);
}

.quiz-question-body {
  display: grid;
  gap: 8px;
  margin-top: 2px;
}

.quiz-question-kicker {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.quiz-kicker-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 9px;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 700;
  color: #0c4a6e;
  border: 1px solid rgba(14, 116, 144, 0.2);
  background: linear-gradient(135deg, #e0f2fe, #f0f9ff);
}

.quiz-question-count {
  font-size: 0.76rem;
  font-weight: 600;
  color: #475569;
}

.quiz-question-content {
  margin: 0;
  font-size: 1.14rem;
  line-height: 1.55;
  letter-spacing: 0.1px;
  color: #0b1324;
}

.xp-burst {
  position: absolute;
  top: 12px;
  right: 12px;
  padding: 6px 10px;
  border-radius: 999px;
  background: #ecfdf5;
  color: #166534;
  font-size: 0.78rem;
  font-weight: 700;
  box-shadow: 0 10px 18px rgba(22, 163, 74, 0.2);
  animation: xp-burst 0.9s var(--quiz-ease);
  pointer-events: none;
}

.confetti-layer {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}

.confetti-piece {
  position: absolute;
  top: 0;
  left: var(--x);
  width: 6px;
  height: 10px;
  border-radius: 2px;
  opacity: 0;
  animation: confetti-fall var(--dur) ease-out var(--delay) forwards;
}

.quiz-question-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  border-bottom: 1px solid rgba(148, 163, 184, 0.18);
  padding-bottom: 10px;
}

.quiz-question-title {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.quiz-floating-icon {
  width: 30px;
  height: 30px;
  border-radius: 11px;
  background: linear-gradient(140deg, #f8fafc, #dbeafe);
  border: 1px solid rgba(59, 130, 246, 0.28);
  color: #1e3a8a;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  animation: float-icon 6s ease-in-out infinite;
  box-shadow: 0 8px 16px rgba(59, 130, 246, 0.12);
}

.quiz-floating-icon i {
  font-size: 0.95rem;
}

.quiz-question.animate-in {
  animation: quiz-cinematic-in 0.42s cubic-bezier(0.22, 0.8, 0.25, 1) both;
}

.quiz-question.animate-out {
  pointer-events: none;
  animation: quiz-cinematic-out 0.28s cubic-bezier(0.4, 0, 0.2, 1) both;
}

.quiz-question.animate-out .quiz-question-body,
.quiz-question.animate-out .quiz-options,
.quiz-question.animate-out .quiz-feedback {
  transition: opacity 0.18s var(--quiz-ease), transform 0.18s var(--quiz-ease);
  opacity: 0.55;
  transform: translateY(3px);
}

.quiz-question.is-urgent {
  border-color: rgba(239, 68, 68, 0.28);
  box-shadow: 0 18px 34px rgba(239, 68, 68, 0.14);
  animation: subtlePulse 1.2s infinite alternate;
}

.quiz-question.is-urgent.animate-in {
  animation: quiz-cinematic-in 0.42s cubic-bezier(0.22, 0.8, 0.25, 1) both;
}

.quiz-question.is-urgent.animate-out {
  animation: quiz-cinematic-out 0.28s cubic-bezier(0.4, 0, 0.2, 1) both;
}

.quiz-question.is-urgent::after {
  background: radial-gradient(circle at top right, rgba(239, 68, 68, 0.16), transparent 54%);
}

.quiz-timer {
  --timer-progress: 100;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  min-width: 74px;
  gap: 6px;
  padding: 8px 10px;
  border-radius: 16px;
  border: 1px solid rgba(37, 99, 235, 0.2);
  background: linear-gradient(145deg, rgba(239, 246, 255, 0.9), rgba(224, 242, 254, 0.92));
  color: var(--quiz-slate);
  font-weight: 700;
  font-size: 0.88rem;
  line-height: 1;
  transition: all 0.3s var(--quiz-ease);
  will-change: transform, box-shadow;
  position: relative;
  overflow: hidden;
  isolation: isolate;
}

.quiz-timer strong,
.quiz-timer small,
.quiz-timer i {
  position: relative;
  z-index: 1;
}

.quiz-timer small {
  font-size: 0.61rem;
  font-weight: 700;
  letter-spacing: 0.28px;
  text-transform: uppercase;
  color: #475569;
}

.quiz-timer::before {
  content: '';
  position: absolute;
  inset: -6px;
  border-radius: inherit;
  background: conic-gradient(from -90deg, #22c55e calc(var(--timer-progress) * 1%), rgba(148, 163, 184, 0.18) 0);
  -webkit-mask: radial-gradient(farthest-side, transparent calc(100% - 4px), #000 calc(100% - 3px));
  mask: radial-gradient(farthest-side, transparent calc(100% - 4px), #000 calc(100% - 3px));
  opacity: 0.66;
}

.quiz-timer.is-urgent {
  background: linear-gradient(145deg, #fff1f2, #ffe4e6);
  color: #b91c1c;
  box-shadow: 0 0 0 2px rgba(239, 68, 68, 0.2);
  border-color: rgba(239, 68, 68, 0.32);
  animation: timerPulse 0.9s infinite alternate, timerShake 0.25s infinite;
}

.quiz-timer.is-urgent::before {
  background: conic-gradient(from -90deg, #ef4444 calc(var(--timer-progress) * 1%), rgba(248, 113, 113, 0.2) 0);
}

.quiz-timer.is-critical {
  transform: translateY(-1px);
}

.quiz-options {
  display: grid;
  gap: 10px;
}

.quiz-options.is-locked .quiz-option:not(.correct):not(.wrong) {
  opacity: 0.72;
}

.quiz-option {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  column-gap: 10px;
  padding: 13px 14px;
  border-radius: 14px;
  border: 2px solid rgba(255, 255, 255, 0.9);
  border-bottom: 5px solid rgba(148, 163, 184, 0.4);
  background: linear-gradient(180deg, #ffffff 0%, #f1f5f9 100%);
  box-shadow: 0 6px 12px rgba(15, 76, 189, 0.08);
  text-align: left;
  font-weight: 600;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: transform 0.2s var(--quiz-ease), box-shadow 0.2s var(--quiz-ease), border-color 0.2s var(--quiz-ease), background 0.2s var(--quiz-ease);
  will-change: transform, box-shadow;
  min-height: 56px;
  touch-action: manipulation;
  animation: option-rise 0.38s var(--quiz-ease) both;
  animation-delay: var(--option-delay, 0ms);
}

.quiz-option:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 24px rgba(37, 99, 235, 0.16);
  border-color: rgba(37, 99, 235, 0.38);
}

.quiz-option-key {
  width: 28px;
  height: 28px;
  border-radius: 9px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(37, 99, 235, 0.24);
  background: #f8fafc;
  color: #1e3a8a;
  font-size: 0.82rem;
  font-weight: 800;
}

.quiz-option-label {
  font-size: 0.97rem;
  line-height: 1.45;
  color: #0f172a;
}

.quiz-option-state {
  width: 24px;
  height: 24px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #94a3b8;
  font-size: 0.78rem;
  transition: transform 0.18s var(--quiz-ease), color 0.18s var(--quiz-ease), background 0.18s var(--quiz-ease);
}

.quiz-option.correct .quiz-option-state i,
.quiz-option.wrong .quiz-option-state i {
  animation: check-pop 0.25s var(--quiz-ease);
}

.quiz-option.is-selected {
  border-color: rgba(37, 99, 235, 0.45);
  background: linear-gradient(140deg, rgba(219, 234, 254, 0.85), rgba(238, 242, 255, 0.92));
  box-shadow: 0 12px 22px rgba(37, 99, 235, 0.14);
}

.quiz-option.is-selected .quiz-option-state {
  color: #1d4ed8;
  background: rgba(219, 234, 254, 0.88);
  transform: scale(1.05);
}

.quiz-option:active {
  transform: translateY(3px);
  border-bottom-width: 2px;
  margin-bottom: 3px;
  background: #f1f5f9;
  box-shadow: inset 0 2px 4px rgba(0,0,0,0.08);
}

.quiz-option:disabled {
  cursor: default;
}

.quiz-option:focus-visible {
  outline: 2px solid rgba(37, 99, 235, 0.4);
  outline-offset: 2px;
}

.quiz-option::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at center, rgba(22, 163, 74, 0.18) 0%, transparent 70%);
  transform: scale(0);
  opacity: 0;
  transition: transform 0.4s var(--quiz-ease), opacity 0.4s var(--quiz-ease);
  pointer-events: none;
}

.quiz-option:active::after {
  transform: scale(1);
  opacity: 1;
}

.quiz-option.correct {
  border-color: #22c55e;
  background: linear-gradient(140deg, #ecfdf5, #dcfce7);
  box-shadow: 0 12px 20px rgba(34, 197, 94, 0.2);
}

.quiz-option.wrong {
  border-color: #ef4444;
  background: linear-gradient(140deg, #fef2f2, #ffe4e6);
  box-shadow: 0 12px 20px rgba(239, 68, 68, 0.18);
}

.quiz-option.correct .quiz-option-state {
  color: #166534;
  background: rgba(187, 247, 208, 0.8);
  transform: scale(1.08);
}

.quiz-option.wrong .quiz-option-state {
  color: #b91c1c;
  background: rgba(254, 202, 202, 0.75);
  transform: scale(1.08);
}

.leaderboard-item {
  display: flex;
  justify-content: space-between;
  padding: 8px 10px;
  border-bottom: 1px solid #eef2f7;
  font-size: 0.85rem;
}

.leaderboard-item.active {
  font-weight: 700;
  color: #0f172a;
  background: #f1f5f9;
  border-radius: 10px;
}

.badge-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: #eef2ff;
  color: #3730a3;
  padding: 4px 8px;
  border-radius: 999px;
  font-size: 0.75rem;
}

.quiz-result-card {
  border-radius: 16px;
  padding: 14px;
  border: 1px solid rgba(59, 130, 246, 0.2);
  background: linear-gradient(135deg, #e0f2fe, #eef2ff 60%, #ffffff 100%);
  box-shadow: 0 10px 24px rgba(59, 130, 246, 0.08);
  display: grid;
  gap: 12px;
}

.quiz-result-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.quiz-result-stat {
  padding: 10px 12px;
  border-radius: 12px;
  background: #ffffff;
  border: 1px solid rgba(15, 23, 42, 0.08);
  display: grid;
  gap: 4px;
  font-size: 0.85rem;
}

.quiz-result-stat strong {
  font-size: 1rem;
}

.quiz-result-stat.positive {
  border-color: rgba(34, 197, 94, 0.3);
  background: #ecfdf5;
  color: #166534;
}

.quiz-result-stat.negative {
  border-color: rgba(239, 68, 68, 0.3);
  background: #fef2f2;
  color: #b91c1c;
}

.quiz-result-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.quiz-result-button {
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid rgba(15, 23, 42, 0.12);
  background: #fff;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s var(--quiz-ease);
}

.quiz-result-button.primary {
  background: #16a34a;
  color: #fff;
  border-color: #16a34a;
}

.quiz-result-button.share {
  background: #eff6ff;
  color: #1e3a8a;
  border-color: rgba(30, 64, 175, 0.18);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

body.page-quiz .premium-fab-container {
  display: none !important;
}

.confetti-layer {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 10;
  overflow: hidden;
}

.confetti-piece {
  position: absolute;
  width: 8px;
  height: 8px;
  top: -10px;
  left: var(--x, 50%);
  opacity: 0;
  animation: confetti-fall var(--dur, 800ms) ease-in var(--delay, 0ms) forwards;
}

.quiz-card.shake {
  animation: ui-shake 0.4s cubic-bezier(.36,.07,.19,.97) both;
  border-color: rgba(239, 68, 68, 0.4);
  box-shadow: 0 10px 25px rgba(239, 68, 68, 0.15);
}

@keyframes ui-shake {
  10%, 90% { transform: translate3d(-1px, 0, 0); }
  20%, 80% { transform: translate3d(2px, 0, 0); }
  30%, 50%, 70% { transform: translate3d(-4px, 0, 0); }
  40%, 60% { transform: translate3d(4px, 0, 0); }
}

@keyframes quiz-slide-fade {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes option-rise {
  from {
    opacity: 0;
    transform: translateY(8px) scale(0.985);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes quiz-cinematic-in {
  0% {
    opacity: 0;
    transform: translateX(28px) scale(0.987);
  }
  62% {
    opacity: 1;
    transform: translateX(-2px) scale(1.004);
  }
  100% {
    opacity: 1;
    transform: translateX(0) scale(1);
  }
}

@keyframes quiz-cinematic-out {
  0% {
    opacity: 1;
    transform: translateX(0) scale(1);
  }
  100% {
    opacity: 0.55;
    transform: translateX(-22px) scale(0.992);
  }
}

@keyframes subtlePulse {
  from {
    box-shadow: 0 12px 24px rgba(239, 68, 68, 0.08);
  }
  to {
    box-shadow: 0 18px 32px rgba(239, 68, 68, 0.18);
  }
}

@keyframes timerPulse {
  from {
    transform: scale(1);
  }
  to {
    transform: scale(1.04);
  }
}

@keyframes timerShake {
  0%, 100% {
    transform: translateX(0);
  }
  50% {
    transform: translateX(-1px);
  }
}

@keyframes quest-swap {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes quest-glow {
  0% {
    box-shadow: 0 0 0 rgba(34, 197, 94, 0.0);
  }
  50% {
    box-shadow: 0 0 0 6px rgba(34, 197, 94, 0.15);
  }
  100% {
    box-shadow: 0 0 0 rgba(34, 197, 94, 0.0);
  }
}

@keyframes confetti-fall {
  0% {
    transform: translateY(0) rotate(0deg);
    opacity: 1;
  }
  100% {
    transform: translateY(120px) rotate(120deg);
    opacity: 0;
  }
}

@keyframes xp-burst {
  0% {
    opacity: 0;
    transform: translateY(6px) scale(0.95);
  }
  30% {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
  100% {
    opacity: 0;
    transform: translateY(-8px) scale(0.98);
  }
}

@keyframes avatar-pop {
  0% {
    transform: scale(0.9);
  }
  50% {
    transform: scale(1.05);
  }
  100% {
    transform: scale(1);
  }
}

@keyframes pop-toast {
  0% {
    opacity: 0;
    transform: translateY(-6px);
  }
  20% {
    opacity: 1;
    transform: translateY(0);
  }
  80% {
    opacity: 1;
  }
  100% {
    opacity: 0;
    transform: translateY(-6px);
  }
}

.quest-card {
  position: relative;
}

.quest-pop {
  position: absolute;
  top: 12px;
  right: 12px;
  padding: 6px 10px;
  border-radius: 999px;
  background: #e0f2fe;
  color: #0c4a6e;
  font-size: 0.75rem;
  box-shadow: 0 10px 18px rgba(14, 116, 144, 0.18);
  animation: pop-toast 1.8s var(--quiz-ease) forwards;
}
@keyframes float-icon {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-4px);
  }
}

@keyframes check-pop {
  from {
    transform: scale(0.6);
    opacity: 0;
  }
  to {
    transform: scale(1);
    opacity: 1;
  }
}

@media (prefers-reduced-motion: reduce) {
  .quiz-react-root * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

@media (max-width: 900px) {
  .quiz-countdown-bar {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 640px) {
  .quiz-react-root {
    padding: 16px 13px 96px;
  }

  .quiz-modal {
    padding: 0;
  }

  .quiz-modal-card {
    max-height: none;
    padding: 12px 14px 22px;
    border-radius: 0;
  }

  .quiz-countdown-bar {
    padding: 14px;
    border-radius: 16px;
  }

  .quiz-share-card {
    padding: 6px 0 0;
  }

  .quiz-countdown-title {
    font-size: 1rem;
  }

  .quiz-card {
    padding: 15px;
    border-radius: 18px;
  }

  .quiz-countdown-title strong {
    font-size: 0.95rem;
  }

  .quiz-timer-pill {
    font-size: 0.78rem;
  }

  .quiz-card h3 {
    font-size: 1.02rem;
  }

  .quiz-question-title strong {
    font-size: 0.95rem;
  }

  .quiz-question {
    gap: 14px;
  }

  .quiz-question-header {
    align-items: flex-start;
  }

  .quiz-question-meta {
    flex-wrap: wrap;
    gap: 8px;
  }

  .quiz-question-content {
    font-size: 1.08rem;
    line-height: 1.52;
  }

  .quiz-timer {
    min-width: 68px;
    padding: 7px 8px;
  }

  .quiz-option {
    padding: 12px 12px;
    min-height: 58px;
    border-radius: 13px;
    column-gap: 9px;
  }

  .quiz-option-label {
    font-size: 0.94rem;
    line-height: 1.42;
  }

  .quest-item {
    padding: 10px 12px;
    font-size: 0.86rem;
  }

  .quiz-list {
    grid-template-columns: 1fr;
  }

  .quiz-side-by-side {
    gap: 10px;
    grid-template-columns: 1fr;
  }

  .quiz-side-by-side .quiz-card {
    padding: 14px;
    min-height: 0;
  }

  .quiz-side-by-side .quiz-card h3 {
    font-size: 1rem;
  }

  .quiz-result-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 420px) {
  .quiz-card {
    padding: 13px;
  }

  .quiz-question-title strong {
    font-size: 0.9rem;
  }

  .quiz-question-content {
    font-size: 1rem;
  }

  .quiz-kicker-chip {
    font-size: 0.68rem;
  }

  .quiz-option {
    min-height: 56px;
  }

  .quiz-feedback {
    font-size: 0.85rem;
  }
}