/* ============== QUIZ STYLES ============== */
.quiz-wrapper {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  margin-top: 40px;
  box-shadow: var(--shadow);
}

.quiz-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
  padding-bottom: 18px;
  border-bottom: 2px dashed var(--border);
}
.quiz-header h2 { font-size: 24px; font-weight: 700; }
.quiz-meta {
  display: flex;
  gap: 16px;
  font-size: 13px;
  color: var(--text-muted);
}
.quiz-meta span strong { color: var(--text); }

.quiz-progress {
  height: 6px;
  background: var(--border);
  border-radius: 100px;
  margin-bottom: 24px;
  overflow: hidden;
}
.quiz-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--aws-orange), var(--aws-yellow));
  transition: width .4s ease;
  border-radius: 100px;
}

.question-card {
  margin-bottom: 24px;
  padding: 22px;
  background: var(--bg);
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  transition: var(--transition);
}
.question-card.answered { border-color: var(--aws-blue); }

.question-header {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  margin-bottom: 14px;
}
.question-num {
  background: var(--aws-orange);
  color: white;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 14px;
  flex-shrink: 0;
}
.question-text {
  font-size: 15.5px;
  font-weight: 500;
  line-height: 1.6;
  color: var(--text);
}
.question-text strong { color: var(--aws-orange-dark); }

.options-list { display: flex; flex-direction: column; gap: 10px; }
.option {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px 16px;
  background: var(--bg-card);
  border: 1.5px solid var(--border);
  border-radius: 8px;
  cursor: pointer;
  transition: var(--transition);
  font-size: 14.5px;
}
.option:hover:not(.disabled) {
  border-color: var(--aws-orange);
  background: rgba(255,153,0,.05);
}
.option.selected {
  border-color: var(--aws-blue);
  background: rgba(20,110,180,.06);
}
.option.correct {
  border-color: var(--aws-green);
  background: rgba(29,129,2,.08);
}
.option.incorrect {
  border-color: var(--aws-red);
  background: rgba(209,50,18,.08);
}
.option.disabled { cursor: default; }
.option-letter {
  width: 26px;
  height: 26px;
  border-radius: 6px;
  background: var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 12px;
  color: var(--text-muted);
  flex-shrink: 0;
}
.option.selected .option-letter { background: var(--aws-blue); color: white; }
.option.correct .option-letter { background: var(--aws-green); color: white; }
.option.incorrect .option-letter { background: var(--aws-red); color: white; }

.explanation {
  margin-top: 14px;
  padding: 14px 16px;
  background: rgba(20,110,180,.06);
  border-left: 3px solid var(--aws-blue);
  border-radius: 6px;
  font-size: 13.5px;
  line-height: 1.6;
  display: none;
}
.explanation.show { display: block; animation: fadeIn .3s ease; }
.explanation .label { font-weight: 700; color: var(--aws-blue); margin-bottom: 6px; display: block; }

.quiz-controls {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 28px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
}

/* Result card */
.result-card {
  text-align: center;
  padding: 30px 20px;
}
.result-score-ring {
  width: 140px; height: 140px;
  margin: 0 auto 22px;
  position: relative;
}
.result-score-ring svg { transform: rotate(-90deg); }
.result-score-ring circle.bg { fill: none; stroke: var(--border); stroke-width: 10; }
.result-score-ring circle.fg {
  fill: none;
  stroke: var(--aws-orange);
  stroke-width: 10;
  stroke-linecap: round;
  transition: stroke-dashoffset 1.2s ease;
}
.result-score-ring.passed circle.fg { stroke: var(--aws-green); }
.result-score-text {
  position: absolute;
  inset: 0;
  display: flex; align-items: center; justify-content: center;
  font-size: 32px;
  font-weight: 800;
}

.result-emoji { font-size: 56px; margin-bottom: 8px; }
.result-title { font-size: 26px; font-weight: 700; margin-bottom: 8px; }
.result-msg { color: var(--text-muted); font-size: 15px; margin-bottom: 20px; }

.result-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin: 22px 0;
}
.result-stat {
  background: var(--bg);
  padding: 14px;
  border-radius: 8px;
  text-align: center;
}
.result-stat .num { font-size: 22px; font-weight: 700; color: var(--aws-orange); }
.result-stat .num.green { color: var(--aws-green); }
.result-stat .num.red { color: var(--aws-red); }
.result-stat .label { font-size: 11px; text-transform: uppercase; color: var(--text-muted); }

/* ============== QUIZ LAUNCH CARD (shown in module body) ============== */
.quiz-launch-card {
  text-align: center;
  background: linear-gradient(135deg, rgba(255,153,0,.10), rgba(20,110,180,.06));
  border: 2px solid var(--aws-orange);
  padding: 44px 28px;
}
.quiz-launch-icon {
  font-size: 60px;
  margin-bottom: 10px;
  filter: drop-shadow(0 4px 12px rgba(255,153,0,.3));
}
.quiz-launch-card h2 {
  font-size: 28px;
  font-weight: 800;
  margin-bottom: 12px;
  letter-spacing: -0.5px;
}
.quiz-launch-sub {
  font-size: 14.5px;
  color: var(--text-muted);
  max-width: 560px;
  margin: 0 auto 24px;
  line-height: 1.65;
}
.quiz-launch-stats {
  display: flex;
  justify-content: center;
  gap: 18px;
  flex-wrap: wrap;
  margin-bottom: 26px;
}
.quiz-launch-stat {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 20px;
  min-width: 110px;
}
.quiz-launch-stat .ls-num {
  font-size: 26px;
  font-weight: 800;
  color: var(--aws-orange);
}
.quiz-launch-stat .ls-lbl {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--text-muted);
}
.quiz-launch-hint {
  font-size: 12px;
  color: var(--text-light);
  margin-top: 18px;
  font-style: italic;
}

/* ============== FULL-SCREEN QUIZ OVERLAY ============== */
body.quiz-overlay-open {
  overflow: hidden; /* lock scroll on the underlying page */
}

.quiz-overlay {
  position: fixed;
  inset: 0;
  z-index: 2000; /* above topbar and content */
  background: rgba(14, 20, 27, 0.85);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: none;
  align-items: flex-start;
  justify-content: center;
  padding: 30px 20px;
  overflow-y: auto;
  animation: overlayFadeIn 0.25s ease;
}
.quiz-overlay.active { display: flex; }

@keyframes overlayFadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.quiz-overlay-inner {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 920px;
  display: flex;
  flex-direction: column;
  box-shadow: 0 30px 80px rgba(0,0,0,0.5);
  animation: overlayScaleIn 0.3s ease;
  margin: auto 0;
  max-height: calc(100vh - 60px);
  overflow: hidden;
}
@keyframes overlayScaleIn {
  from { opacity: 0; transform: scale(0.96) translateY(20px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}

.quiz-overlay-header {
  padding: 22px 30px 18px;
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 14px;
  background: var(--bg-card);
  position: sticky;
  top: 0;
  z-index: 2;
}
.quiz-overlay-tag {
  font-size: 11px;
  font-weight: 700;
  color: var(--aws-orange);
  text-transform: uppercase;
  letter-spacing: 1.2px;
}
.quiz-overlay-header h2 {
  font-size: 20px;
  font-weight: 700;
  margin-top: 4px;
  letter-spacing: -0.3px;
}
.quiz-overlay-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}
.quiz-overlay-counter {
  font-size: 14px;
  font-weight: 600;
  background: rgba(255,153,0,.12);
  color: var(--aws-orange);
  padding: 6px 14px;
  border-radius: 100px;
}

/* Live countdown timer pill */
.quiz-timer {
  font-family: 'JetBrains Mono', monospace;
  font-size: 15px;
  font-weight: 700;
  background: rgba(20, 110, 180, 0.10);
  color: var(--aws-blue);
  padding: 6px 14px;
  border-radius: 100px;
  border: 1px solid rgba(20, 110, 180, 0.25);
  min-width: 92px;
  text-align: center;
  letter-spacing: 0.5px;
  transition: background 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}
.quiz-timer.quiz-timer-warn {
  background: rgba(209, 50, 18, 0.12);
  color: var(--aws-red);
  border-color: rgba(209, 50, 18, 0.5);
  animation: quizTimerPulse 1s ease-in-out infinite;
}
@keyframes quizTimerPulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.08); }
}
.btn-icon-close {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: rgba(209,50,18,.10);
  color: var(--aws-red);
  border: 1px solid rgba(209,50,18,.30);
  font-size: 16px;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
}
.btn-icon-close:hover {
  background: var(--aws-red);
  color: white;
  transform: rotate(90deg);
}

.quiz-overlay-body {
  flex: 1;
  overflow-y: auto;
  padding: 24px 30px;
  background: var(--bg);
}

.quiz-overlay-footer {
  padding: 16px 30px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--bg-card);
  position: sticky;
  bottom: 0;
}
.quiz-overlay-footer #quizStatus {
  font-size: 14px;
  color: var(--text-muted);
}

/* Ensure modal (result popup) appears ABOVE the quiz overlay */
.modal-overlay { z-index: 3000; }

/* Responsive */
@media (max-width: 700px) {
  .quiz-overlay { padding: 0; }
  .quiz-overlay-inner { border-radius: 0; max-height: 100vh; }
  .quiz-overlay-header { padding: 16px 18px; }
  .quiz-overlay-header h2 { font-size: 16px; }
  .quiz-overlay-body { padding: 16px 18px; }
  .quiz-overlay-footer { padding: 12px 18px; }
}