.quiz-hero {
  padding-bottom: 18px;
}

.quiz-page-wrap {
  padding: 8px 0 38px;
}

.quiz-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(320px, 0.8fr);
  gap: 18px;
  align-items: start;
}

.quiz-main-card,
.quiz-side-card {
  background: var(--panel);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(14px);
  border-radius: 24px;
}

.quiz-main-card {
  padding: 18px;
}

.quiz-side-stack {
  display: grid;
  gap: 16px;
}

.quiz-side-card {
  padding: 16px;
}

.quiz-topbar {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: flex-start;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

.quiz-score-chip,
.status-pill,
.question-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 700;
  border: 1px solid var(--line);
  background: color-mix(in srgb, var(--panel-solid) 90%, transparent);
  color: var(--text);
}

.quiz-score-chip {
  padding: 10px 14px;
}

.quiz-mode-form {
  margin-bottom: 16px;
}

.quiz-mode-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0,1fr));
  gap: 12px;
}

.mode-option {
  display: block;
  cursor: pointer;
}

.mode-option input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.mode-option span {
  display: block;
  padding: 14px;
  border-radius: 18px;
  border: 1px solid var(--line);
  background: color-mix(in srgb, var(--panel-solid) 92%, transparent);
  transition: .18s ease;
}

.mode-option strong {
  display: block;
  margin-bottom: 6px;
  font-size: 15px;
}

.mode-option small {
  color: var(--muted);
  line-height: 1.5;
}

.mode-option input:checked + span {
  border-color: color-mix(in srgb, var(--primary) 45%, transparent);
  background: linear-gradient(
    135deg,
    color-mix(in srgb, var(--primary) 16%, transparent),
    color-mix(in srgb, var(--primary-2) 10%, transparent)
  );
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--primary) 14%, transparent);
}

.quiz-status-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 16px;
}

.status-pill,
.question-badge {
  padding: 8px 12px;
}

.question-badge.soft {
  background: var(--surface-2);
  color: var(--muted);
}

.quiz-question-card {
  border: 1px solid var(--line);
  background: color-mix(in srgb, var(--panel-solid) 94%, transparent);
  border-radius: 22px;
  padding: 18px;
}

.question-meta {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}

.question-title {
  margin: 0 0 10px;
  font-size: 24px;
  line-height: 1.2;
}

.question-prompt {
  padding: 16px;
  border-radius: 18px;
  border: 1px dashed color-mix(in srgb, var(--primary) 28%, transparent);
  background: linear-gradient(
    135deg,
    color-mix(in srgb, var(--primary) 8%, transparent),
    color-mix(in srgb, var(--primary-2) 8%, transparent)
  );
  font-size: clamp(24px, 4vw, 36px);
  font-weight: 800;
  letter-spacing: 1px;
  line-height: 1.4;
  word-break: break-word;
  margin-bottom: 12px;
}

.question-hint {
  margin: 0 0 14px;
  color: var(--muted);
  line-height: 1.65;
}

.quiz-answer-input {
  min-height: 56px;
}

.quiz-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 14px;
}

.quiz-feedback {
  margin-top: 14px;
  padding: 14px 16px;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: var(--surface-2);
  color: var(--muted);
  line-height: 1.7;
}

.quiz-feedback.is-correct {
  border-color: color-mix(in srgb, var(--success) 30%, transparent);
  background: color-mix(in srgb, var(--success) 10%, transparent);
  color: color-mix(in srgb, var(--success) 70%, white 30%);
}

.quiz-feedback.is-wrong {
  border-color: color-mix(in srgb, var(--danger) 30%, transparent);
  background: color-mix(in srgb, var(--danger) 10%, transparent);
  color: color-mix(in srgb, var(--danger) 70%, white 30%);
}

.timing-grid,
.chart-mini-grid,
.quiz-support-grid {
  display: grid;
  gap: 12px;
}

.timing-grid {
  grid-template-columns: repeat(2, minmax(0,1fr));
}

.timing-box,
.chart-box {
  border: 1px solid var(--line);
  background: color-mix(in srgb, var(--panel-solid) 92%, transparent);
  border-radius: 18px;
  padding: 14px;
}

.timing-box strong,
.chart-box h4 {
  display: block;
  margin-bottom: 8px;
}

.timing-box span,
.chart-box li,
.study-notes li {
  color: var(--muted);
  line-height: 1.7;
  font-size: 14px;
}

.chart-mini-grid {
  grid-template-columns: 1fr;
}

.chart-box ul,
.study-notes {
  margin: 0;
  padding-left: 18px;
}

.study-notes code {
  background: var(--surface-2);
  padding: 2px 8px;
  border-radius: 999px;
}

.quiz-support-section {
  padding: 8px 0 42px;
}

@media (max-width: 1080px) {
  .quiz-layout,
  .quiz-mode-grid,
  .quiz-support-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .quiz-actions,
  .quiz-status-row {
    flex-direction: column;
    align-items: stretch;
  }

  .quiz-actions .btn {
    width: 100%;
  }

  .timing-grid {
    grid-template-columns: 1fr;
  }
}