/* SmartQuiz Frontend Styles
   All scoped under .sq-wrap. Never hardcode font-family, base font-size, or text color.
   All colors use CSS custom properties set via inline <style> from Settings.
*/

.sq-wrap {
  box-sizing: border-box;
  font-size: inherit;
  color: inherit;
  font-family: inherit;
  line-height: inherit;
  max-width: 780px;
  margin: 0 auto;
}

.sq-wrap *,
.sq-wrap *::before,
.sq-wrap *::after {
  box-sizing: inherit;
}

/* ── Loading ── */
.sq-loading {
  text-align: center;
  padding: 40px;
  opacity: 0.6;
}

/* ── Card Shell ── */
.sq-card {
  background: var(--sq-card-bg, #fff);
  border-radius: var(--sq-radius, 8px);
  box-shadow: var(--sq-card-shadow, 0 1px 4px rgba(0,0,0,.08));
  border: 1px solid var(--sq-border, #dee2e6);
  padding: 32px;
  margin-bottom: 24px;
}

/* ── Start Screen ── */
.sq-start-title {
  margin: 0 0 12px;
  font-size: 1.6em;
  font-weight: 800;
  line-height: 1.2;
  text-align: center;
}

.sq-start-description {
  margin-bottom: 20px;
  opacity: 0.8;
}

.sq-meta-row {
  display: flex;
  gap: 0;
  flex-wrap: wrap;
  margin-bottom: 24px;
  border-radius: var(--sq-radius, 8px);
  overflow: hidden;
  border: 1.5px solid var(--sq-border, #dee2e6);
}

.sq-meta-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  flex: 1;
  padding: 16px 20px;
  background: rgba(var(--sq-accent-rgb, 91,94,244), 0.04);
  border-right: 1.5px solid var(--sq-border, #dee2e6);
  min-width: 100px;
}

.sq-meta-item:last-child {
  border-right: none;
}

.sq-meta-item strong {
  font-size: 1.4em;
  font-weight: 800;
  color: var(--sq-accent, #5b5ef4);
  line-height: 1;
}

.sq-meta-item span {
  font-size: 0.78em;
  opacity: 0.6;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 600;
}

.sq-intro-text {
  margin-bottom: 24px;
  font-style: italic;
  opacity: 0.65;
  font-size: 0.95em;
  text-align: center;
}

/* ── Buttons ── */
.sq-btn {
  display: inline-block;
  padding: 10px 24px;
  border-radius: var(--sq-radius, 8px);
  border: none;
  cursor: pointer;
  font-size: 1em;
  font-family: inherit;
  font-weight: 600;
  transition: opacity 0.15s, transform 0.1s;
  text-decoration: none;
}

.sq-btn:hover { opacity: 0.88; transform: translateY(-1px); }
.sq-btn:active { transform: translateY(0); }

.sq-btn-primary {
  background: var(--sq-accent, #5b5ef4);
  color: #fff;
}

.sq-btn-secondary {
  background: transparent;
  border: 1.5px solid var(--sq-border, #dee2e6);
  color: inherit;
}

.sq-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  transform: none;
}

/* ── Quiz Header (timer / progress) ── */
.sq-quiz-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
  gap: 16px;
  flex-wrap: wrap;
}

.sq-timer {
  font-weight: 700;
  font-size: 1.1em;
  padding: 4px 12px;
  border-radius: 999px;
  border: 2px solid var(--sq-accent, #5b5ef4);
  color: var(--sq-accent, #5b5ef4);
  min-width: 72px;
  text-align: center;
  transition: border-color 0.3s, color 0.3s;
}

.sq-timer.sq-timer-warning {
  border-color: #dc3545;
  color: #dc3545;
  animation: sq-pulse 1s ease-in-out infinite;
}

@keyframes sq-pulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.5; }
}

.sq-progress-text {
  opacity: 0.65;
  font-size: 0.9em;
}

.sq-progress-bar-wrap {
  height: 5px;
  background: var(--sq-border, #dee2e6);
  border-radius: 999px;
  overflow: hidden;
  margin-bottom: 20px;
}

.sq-progress-bar-fill {
  height: 100%;
  background: var(--sq-accent, #5b5ef4);
  border-radius: 999px;
  transition: width 0.3s ease;
}

/* ── Question ── */
.sq-question-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 6px;
  flex-wrap: wrap;
}

.sq-question-num {
  font-size: 0.85em;
  opacity: 0.6;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.sq-cat-badge {
  display: inline-block;
  font-size: 0.75em;
  font-weight: 600;
  padding: 2px 10px;
  border-radius: 999px;
  background: rgba(var(--sq-accent-rgb, 91,94,244), 0.1);
  color: var(--sq-accent, #5b5ef4);
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

/* ── Section Header ── */
.sq-section-header {
  margin-bottom: 12px;
  padding: 10px 0 8px;
  border-bottom: 2px solid var(--sq-accent, #5b5ef4);
  display: flex;
  align-items: center;
  gap: 10px;
}

.sq-section-label {
  font-size: 0.82em;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--sq-accent, #5b5ef4);
}

.sq-question-text {
  margin: 0 0 20px;
  font-size: 1.1em;
  line-height: 1.55;
}

/* ── MC / Multi choices ── */
.sq-choices-list {
  list-style: none;
  padding: 0;
  margin: 0 0 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.sq-choice {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border: 1.5px solid var(--sq-border, #dee2e6);
  border-radius: var(--sq-radius, 8px);
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
  user-select: none;
}

.sq-choice:hover:not(.sq-answered) {
  border-color: var(--sq-accent, #5b5ef4);
  background: rgba(var(--sq-accent-rgb, 91,94,244), 0.05);
}

.sq-choice input[type="radio"],
.sq-choice input[type="checkbox"] {
  accent-color: var(--sq-accent, #5b5ef4);
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.sq-choice.sq-selected:not(.sq-answered) {
  border-color: var(--sq-accent, #5b5ef4);
  background: rgba(var(--sq-accent-rgb, 91,94,244), 0.08);
}

/* Answer feedback */
.sq-choice.sq-correct {
  background: var(--sq-correct-bg);
  border-color: var(--sq-correct-border);
  color: var(--sq-correct-text);
}

.sq-choice.sq-wrong {
  background: var(--sq-wrong-bg);
  border-color: var(--sq-wrong-border);
  color: var(--sq-wrong-text);
}

.sq-choice.sq-answered { cursor: default; }

/* ── FITB ── */
.sq-fitb-wrap {
  margin-bottom: 16px;
}

.sq-fitb-input {
  border: 2px solid var(--sq-border, #dee2e6);
  border-radius: var(--sq-radius, 8px);
  padding: 8px 12px;
  font-size: 1em;
  font-family: inherit;
  color: inherit;
  background: var(--sq-card-bg, #fff);
  transition: border-color 0.2s;
  min-width: 180px;
}

.sq-fitb-input:focus {
  outline: none;
  border-color: var(--sq-accent, #5b5ef4);
}

.sq-fitb-input.sq-correct { border-color: var(--sq-correct-border); }
.sq-fitb-input.sq-wrong   { border-color: var(--sq-wrong-border); }

.sq-fitb-correct-ans {
  font-size: 0.85em;
  margin-top: 6px;
  color: var(--sq-correct-text);
}

/* ── Matching ── */
.sq-matching-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 16px;
}

.sq-matching-table th {
  text-align: left;
  padding: 8px 10px;
  opacity: 0.65;
  font-size: 0.85em;
  border-bottom: 1.5px solid var(--sq-border, #dee2e6);
}

.sq-matching-table td {
  padding: 8px 10px;
  border-bottom: 1px solid var(--sq-border, #dee2e6);
  vertical-align: middle;
}

.sq-matching-table tr.sq-correct td { background: var(--sq-correct-bg); color: var(--sq-correct-text); }
.sq-matching-table tr.sq-wrong td   { background: var(--sq-wrong-bg); color: var(--sq-wrong-text); }

.sq-matching-select {
  border: 1.5px solid var(--sq-border, #dee2e6);
  border-radius: 6px;
  padding: 6px 10px;
  font-size: 0.95em;
  font-family: inherit;
  color: inherit;
  background: var(--sq-card-bg, #fff);
  cursor: pointer;
  max-width: 240px;
  width: 100%;
}

.sq-matching-select:focus { outline: none; border-color: var(--sq-accent, #5b5ef4); }
.sq-matching-select:disabled { opacity: 0.7; cursor: default; }

/* ── Multi-select subtitle ── */
.sq-multi-subtitle {
  font-size: 0.85em;
  opacity: 0.65;
  margin-bottom: 12px;
  font-style: italic;
}

/* ── Explanation box ── */
.sq-explanation {
  background: #f8f9fa;
  border-left: 3px solid var(--sq-accent, #5b5ef4);
  border-radius: 0 var(--sq-radius, 8px) var(--sq-radius, 8px) 0;
  padding: 12px 16px;
  font-size: 0.9em;
  opacity: 0.85;
  margin-top: 12px;
}

/* ── Footer nav ── */
.sq-question-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 20px;
  flex-wrap: wrap;
}

/* ── Palette ── */
.sq-palette-wrap {
  position: relative;
}

.sq-palette-toggle {
  background: transparent;
  border: 1.5px solid var(--sq-border, #dee2e6);
  border-radius: var(--sq-radius, 8px);
  padding: 8px 14px;
  cursor: pointer;
  font-size: 0.85em;
  font-family: inherit;
  color: inherit;
}

.sq-palette {
  display: none;
  width: 100%;
  background: var(--sq-card-bg, #fff);
  border: 1.5px solid var(--sq-border, #dee2e6);
  border-radius: var(--sq-radius, 8px);
  padding: 14px 16px;
  margin-top: 10px;
  box-sizing: border-box;
}

.sq-palette.sq-open { display: block; }

.sq-palette-info {
  font-size: 0.82em;
  margin-bottom: 10px;
  opacity: 0.65;
}

.sq-palette-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  max-height: 180px;
  overflow-y: auto;
}

.sq-palette-btn {
  min-width: 36px;
  width: auto;
  height: 36px;
  padding: 0 6px;
  border-radius: 6px;
  border: 1.5px solid var(--sq-border, #dee2e6);
  background: transparent;
  cursor: pointer;
  font-size: 0.78em;
  font-family: inherit;
  color: inherit;
  transition: background 0.15s;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.sq-palette-btn.sq-answered {
  background: var(--sq-accent, #5b5ef4);
  border-color: var(--sq-accent, #5b5ef4);
  color: #fff;
}

.sq-palette-btn.sq-current {
  border-color: var(--sq-accent, #5b5ef4);
  font-weight: 700;
}

/* ── Results Screen ── */
.sq-results-wrap { text-align: center; }

.sq-score-circle {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 140px;
  height: 140px;
  border-radius: 50%;
  border: 6px solid var(--sq-accent, #5b5ef4);
  margin: 0 auto 16px;
}

.sq-score-big {
  font-size: 2.2em;
  font-weight: 800;
  line-height: 1;
}

.sq-score-label {
  font-size: 0.75em;
  opacity: 0.6;
  text-transform: uppercase;
}

.sq-badge {
  display: inline-block;
  padding: 4px 16px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.9em;
  margin-bottom: 12px;
}

.sq-badge-pass {
  background: var(--sq-correct-bg);
  color: var(--sq-correct-text);
  border: 1.5px solid var(--sq-correct-border);
}

.sq-badge-fail {
  background: var(--sq-wrong-bg);
  color: var(--sq-wrong-text);
  border: 1.5px solid var(--sq-wrong-border);
}

.sq-result-message {
  margin: 8px 0 20px;
  font-size: 1.05em;
}

.sq-result-stats {
  display: flex;
  justify-content: center;
  gap: 28px;
  flex-wrap: wrap;
  margin-bottom: 20px;
  padding: 16px;
  background: rgba(0,0,0,0.03);
  border-radius: var(--sq-radius, 8px);
}

.sq-stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
}

.sq-stat-item strong { font-size: 1.3em; }
.sq-stat-item small  { opacity: 0.6; font-size: 0.8em; }

.sq-results-score-bar {
  height: 10px;
  background: var(--sq-border, #dee2e6);
  border-radius: 999px;
  overflow: hidden;
  margin-bottom: 24px;
}

.sq-results-score-fill {
  height: 100%;
  background: var(--sq-accent, #5b5ef4);
  border-radius: 999px;
  width: 0;
  transition: width 1s cubic-bezier(0.22,1,0.36,1);
}

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

/* ── Review Mode ── */
.sq-review-sticky {
  position: sticky;
  top: 0;
  background: var(--sq-card-bg, #fff);
  z-index: 50;
  padding: 10px 0;
  border-bottom: 1px solid var(--sq-border, #dee2e6);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.sq-review-card {
  border: 1.5px solid var(--sq-border, #dee2e6);
  border-radius: var(--sq-radius, 8px);
  padding: 20px;
  margin-bottom: 16px;
}

.sq-review-card.sq-correct { border-color: var(--sq-correct-border); }
.sq-review-card.sq-wrong   { border-color: var(--sq-wrong-border); }
.sq-review-card.sq-skipped { border-color: var(--sq-border, #dee2e6); opacity: 0.65; }

.sq-review-status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8em;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 10px;
  padding: 3px 10px;
  border-radius: 999px;
}

.sq-review-status.sq-correct { background: var(--sq-correct-bg); color: var(--sq-correct-text); }
.sq-review-status.sq-wrong   { background: var(--sq-wrong-bg); color: var(--sq-wrong-text); }
.sq-review-status.sq-skipped { background: rgba(0,0,0,0.05); }

.sq-review-q-text {
  margin: 0 0 12px;
  font-size: 1em;
  line-height: 1.5;
}

.sq-review-answer-row {
  font-size: 0.9em;
  margin-bottom: 4px;
}

.sq-review-your-answer.sq-wrong-text { color: var(--sq-wrong-text); }
.sq-review-correct-answer { color: var(--sq-correct-text); }

.sq-review-explanation {
  margin-top: 10px;
  padding: 10px 14px;
  background: rgba(0,0,0,0.04);
  border-radius: 6px;
  font-size: 0.88em;
  opacity: 0.8;
}

/* ── Confirm Dialog ── */
.sq-confirm-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.45);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
}

.sq-confirm-box {
  background: var(--sq-card-bg, #fff);
  border-radius: var(--sq-radius, 8px);
  padding: 32px;
  max-width: 380px;
  width: 90%;
  box-shadow: 0 8px 32px rgba(0,0,0,0.18);
  text-align: center;
}

.sq-confirm-box h3 { margin: 0 0 8px; }
.sq-confirm-box p  { margin: 0 0 20px; opacity: 0.7; }
.sq-confirm-actions { display: flex; gap: 12px; justify-content: center; }

/* ── Responsive ── */
@media (max-width: 540px) {
  .sq-card { padding: 20px; }
  .sq-meta-row { gap: 12px; }
  .sq-question-footer { gap: 8px; }
  .sq-score-circle { width: 110px; height: 110px; }
  .sq-score-big { font-size: 1.8em; }
  .sq-palette { left: 0; transform: none; }
}

/* ── Auto-Review (shown inline below results) ── */
.sq-auto-review {
  margin-top: 32px;
  padding-top: 24px;
  border-top: 2px solid var(--sq-border, #dee2e6);
}

.sq-review-heading {
  font-size: 1.05em;
  font-weight: 700;
  margin: 0 0 16px;
  color: var(--sq-text, inherit);
}

.sq-review-card-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}

.sq-review-qnum {
  font-size: 0.78em;
  font-weight: 700;
  color: #fff;
  background: var(--sq-accent, #5b5ef4);
  border-radius: 999px;
  padding: 2px 8px;
  white-space: nowrap;
}

/* Remove sticky review bar (no longer used) */
.sq-review-sticky { display: none; }