/* Knowledge quiz + quiz index — mobile-first */

.yhg-kq,
.yhg-quiz-index {
  --kq-gold: var(--gold, #c9a227);
  --kq-paper: var(--paper, #f6f4ef);
  --kq-muted: var(--muted, #8a8f98);
  max-width: 720px;
  margin: 1rem auto 2.5rem;
  color: var(--kq-paper);
  font-family: var(--font-body, "Source Sans 3", system-ui, sans-serif);
  width: 100%;
  overflow-x: clip;
  box-sizing: border-box;
}

.yhg-kq *,
.yhg-quiz-index * {
  box-sizing: border-box;
}

.yhg-kq-eyebrow {
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-size: 0.75rem;
  color: var(--kq-gold);
  margin: 0 0 0.4rem;
}

.yhg-kq-title {
  font-family: var(--font-display, "Cormorant Garamond", Georgia, serif);
  font-size: clamp(1.5rem, 5vw, 2.2rem);
  margin: 0 0 0.5rem;
  font-weight: 600;
}

.yhg-kq-lead {
  color: var(--kq-muted);
  margin: 0 0 1.25rem;
  line-height: 1.5;
}

.yhg-kq-index-link {
  display: inline-block;
  color: var(--kq-gold);
  text-decoration: none;
  margin: 0.25rem 0 1rem;
  min-height: 44px;
  line-height: 44px;
}

.yhg-kq-index-link:hover {
  text-decoration: underline;
}

.yhg-kq-progress {
  height: 8px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 999px;
  margin-bottom: 1rem;
  overflow: hidden;
}

.yhg-kq-progress-fill {
  height: 100%;
  width: 0;
  background: var(--kq-gold);
  transition: width 0.25s ease;
}

.yhg-kq-count,
.yhg-kq-hint {
  color: var(--kq-muted);
  font-size: 0.9rem;
  margin: 0 0 0.75rem;
}

.yhg-kq-q {
  font-family: var(--font-display, Georgia, serif);
  font-size: 1.25rem;
  margin: 0 0 1rem;
  line-height: 1.35;
}

.yhg-kq-choices {
  display: grid;
  gap: 0.55rem;
}

.yhg-kq-choice,
.yhg-kq-btn,
.yhg-kq-order-label {
  font: inherit;
  cursor: pointer;
  border-radius: 8px;
  border: 1px solid var(--border, rgba(201, 162, 39, 0.28));
  background: rgba(24, 27, 33, 0.8);
  color: var(--kq-paper);
  padding: 0.9rem 1rem;
  min-height: 48px;
  text-align: left;
  width: 100%;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}

.yhg-kq-btn {
  display: inline-block;
  width: auto;
  margin-top: 0.85rem;
  margin-right: 0.5rem;
  text-align: center;
}

.yhg-kq-btn-primary {
  background: var(--kq-gold);
  color: #141414;
  border-color: var(--kq-gold);
  font-weight: 600;
}

.yhg-kq-choice.is-correct,
.yhg-kq-order-item.is-correct .yhg-kq-order-label {
  border-color: #3d9a5f;
  background: rgba(61, 154, 95, 0.18);
}

.yhg-kq-choice.is-wrong,
.yhg-kq-order-item.is-wrong .yhg-kq-order-label {
  border-color: #c45c5c;
  background: rgba(196, 92, 92, 0.14);
}

.yhg-kq-feedback {
  margin: 0.85rem 0;
  padding: 0.75rem;
  border-radius: 8px;
  min-height: 1.2em;
}

.yhg-kq-feedback.is-ok {
  background: rgba(61, 154, 95, 0.15);
}

.yhg-kq-feedback.is-bad {
  background: rgba(196, 92, 92, 0.12);
}

.yhg-kq-info-body {
  line-height: 1.55;
  margin-bottom: 0.75rem;
}

.yhg-kq-order {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.45rem;
}

.yhg-kq-order-item.is-selected .yhg-kq-order-label {
  border-color: var(--kq-gold);
  box-shadow: 0 0 0 2px rgba(201, 162, 39, 0.35);
}

.yhg-kq-index-grid {
  display: grid;
  gap: 0.85rem;
}

.yhg-kq-index-card {
  display: grid;
  gap: 0.3rem;
  padding: 1.15rem 1.2rem;
  border: 1px solid var(--border, rgba(201, 162, 39, 0.28));
  border-radius: 10px;
  background: rgba(24, 27, 33, 0.85);
  color: inherit;
  text-decoration: none;
  min-height: 44px;
}

.yhg-kq-index-card:hover,
.yhg-kq-index-card:focus-visible {
  border-color: var(--kq-gold);
  outline: none;
}

.yhg-kq-index-name {
  font-family: var(--font-display, Georgia, serif);
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--kq-gold);
}

.yhg-kq-index-desc {
  color: var(--kq-muted);
  font-size: 0.95rem;
  line-height: 1.45;
}

.yhg-kq-levels {
  display: grid;
  gap: 0.85rem;
  margin: 0.5rem 0 1rem;
}

.yhg-kq-level-card {
  display: grid;
  gap: 0.25rem;
  text-align: left;
  padding: 1.1rem 1.25rem;
  border: 1px solid var(--border, rgba(201, 162, 39, 0.28));
  border-radius: 10px;
  background: rgba(24, 27, 33, 0.85);
  color: inherit;
  cursor: pointer;
  font: inherit;
  width: 100%;
  transition: border-color 0.2s, transform 0.15s;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}

.yhg-kq-level-card:hover,
.yhg-kq-level-card:focus-visible {
  border-color: var(--kq-gold);
  transform: translateY(-1px);
  outline: none;
}

.yhg-kq-level-card.is-disabled,
.yhg-kq-level-card:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  transform: none;
}

.yhg-kq-level-num {
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--kq-gold);
}

.yhg-kq-level-name {
  font-family: var(--font-display, Georgia, serif);
  font-size: 1.35rem;
  font-weight: 600;
}

.yhg-kq-level-desc {
  color: var(--kq-muted);
  font-size: 0.95rem;
  line-height: 1.4;
}

.yhg-kq-note {
  color: var(--kq-muted);
  font-size: 0.9rem;
  line-height: 1.45;
  margin: 0 0 1rem;
}

.yhg-kq-toolbar {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.yhg-kq-toolbar .yhg-kq-btn {
  margin-top: 0;
}

.yhg-kq-toolbar-label {
  color: var(--kq-gold);
  font-size: 0.9rem;
  letter-spacing: 0.04em;
}

.yhg-kq-card {
  position: relative;
  display: block;
  width: 100%;
  min-height: 220px;
  padding: 0;
  border: 1px solid var(--border, rgba(201, 162, 39, 0.28));
  border-radius: 12px;
  background: transparent;
  color: inherit;
  cursor: pointer;
  perspective: 900px;
  font: inherit;
  -webkit-tap-highlight-color: transparent;
}

.yhg-kq-card-face {
  padding: 1.25rem 1.35rem;
  border-radius: 12px;
  background: rgba(24, 27, 33, 0.92);
  min-height: 220px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 0.5rem;
}

.yhg-kq-card-back {
  display: none;
}

.yhg-kq-card.is-flipped .yhg-kq-card-front {
  display: none;
}

.yhg-kq-card.is-flipped .yhg-kq-card-back {
  display: flex;
}

.yhg-kq-card-sec {
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--kq-gold);
}

.yhg-kq-card-q {
  font-family: var(--font-display, Georgia, serif);
  font-size: 1.25rem;
  margin: 0;
  line-height: 1.35;
}

.yhg-kq-card-a {
  margin: 0;
  line-height: 1.55;
  font-size: 1.02rem;
  white-space: pre-wrap;
}

.yhg-kq-card-hint {
  font-size: 0.85rem;
  color: var(--kq-muted);
}

.yhg-kq-tts {
  align-self: flex-start;
  margin-top: 0.5rem;
  border: 1px solid rgba(201, 162, 39, 0.45);
  background: rgba(201, 162, 39, 0.12);
  color: var(--kq-paper);
  border-radius: 8px;
  padding: 0.55rem 0.85rem;
  min-height: 44px;
  cursor: pointer;
  font: inherit;
}

.yhg-kq-flash-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-top: 1rem;
}

.yhg-kq-done {
  text-align: center;
  padding: 1rem 0;
}

.yhg-kq-done h3 {
  color: var(--kq-gold);
  font-family: var(--font-display, Georgia, serif);
}

.yhg-kq-loading,
.yhg-kq-error {
  color: var(--kq-muted);
}

@media (max-width: 640px) {
  .yhg-kq-title {
    font-size: 1.45rem;
  }

  .yhg-kq-q {
    font-size: 1.1rem;
  }

  .yhg-kq-choice,
  .yhg-kq-order-label,
  .yhg-kq-btn {
    font-size: 1rem;
  }

  .yhg-kq-btn {
    width: 100%;
    margin-right: 0;
  }
}