/* ================================================================
   Buddy-Guitar fret quizzes
   ================================================================ */

.nqz-wrap {
  --nqz-bg: #fbf8ef;
  --nqz-panel: #fffdf7;
  --nqz-blue: #d9ebf4;
  --nqz-blue-soft: #edf7fb;
  --nqz-blue-deep: #3f7897;
  --nqz-yellow: #ffe12b;
  --nqz-ink: #26323a;
  --nqz-muted: #6f7a80;
  --nqz-line: #e7dfd2;
  --nqz-correct: #3f7897;
  --nqz-wrong: #d96b5f;
  font-family: sans-serif;
  color: var(--nqz-ink);
  background: var(--nqz-bg);
  box-sizing: border-box;
  max-width: 980px;
  margin: 0 auto;
  border: 1px solid var(--nqz-line);
  border-radius: 28px;
  overflow: hidden;
}

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

.nqz-header {
  background: var(--nqz-blue);
  color: var(--nqz-ink);
  padding: 18px 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  border-bottom: 1px solid var(--nqz-line);
}

.nqz-title {
  font-size: 24px;
  flex: 1 1 260px;
  margin: 0;
  padding: 0;
  border: none;
  color: var(--nqz-ink);
  font-weight: 800;
  line-height: 1.2;
}

.nqz-score-badge,
.nqz-timer {
  background: var(--nqz-yellow);
  color: var(--nqz-ink);
  padding: 7px 14px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 800;
  min-width: 84px;
  text-align: center;
  font-variant-numeric: tabular-nums;
}

.nqz-board-wrap {
  background: var(--nqz-panel);
  padding: 18px 16px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.nqz-board-wrap svg {
  display: block;
  width: 100%;
  max-width: 740px;
  margin: 0 auto;
  height: auto;
}

.nqz-board-wrap svg.nqz-fretboard-v {
  max-width: 340px;
}

.nqz-question {
  padding: 16px 18px 10px;
  text-align: center;
  background: var(--nqz-panel);
}

.nqz-question-text {
  font-size: 14px;
  color: var(--nqz-blue-deep);
  margin-bottom: 8px;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.nqz-position {
  font-size: 24px;
  font-weight: 800;
  color: var(--nqz-ink);
}

.nqz-fret-hit:hover {
  fill: rgba(255, 225, 43, 0.28);
}

.nqz-position--note {
  font-size: 48px;
  color: var(--nqz-blue-deep);
  letter-spacing: 0.05em;
}

.nqz-feedback {
  min-height: 34px;
  text-align: center;
  font-size: 16px;
  font-weight: 800;
  padding: 6px 16px;
  background: var(--nqz-panel);
}

.nqz-feedback.correct { color: var(--nqz-correct); }
.nqz-feedback.wrong { color: var(--nqz-wrong); }
.nqz-feedback.nqz-hint,
.nqz-feedback.nqz-hint-count { color: #9b7a00; }
.nqz-feedback.nqz-hint-count { font-size: 13px; font-weight: 600; }

.nqz-answers {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  padding: 8px 16px 18px;
  justify-content: center;
  background: var(--nqz-panel);
}

.nqz-ans-btn {
  padding: 11px 0;
  width: 70px;
  border: 1px solid var(--nqz-line);
  border-radius: 999px;
  background: #fff;
  color: var(--nqz-ink);
  font-size: 15px;
  font-weight: 800;
  cursor: pointer;
  transition: background 0.12s, border-color 0.12s, transform 0.12s;
}

.nqz-ans-btn:hover:not(:disabled) {
  background: var(--nqz-blue-soft);
  border-color: var(--nqz-blue-deep);
  transform: translateY(-1px);
}

.nqz-ans-btn.correct,
.nqz-ans-btn.reveal {
  background: var(--nqz-blue-deep);
  border-color: var(--nqz-blue-deep);
  color: #fff;
}

.nqz-ans-btn.wrong {
  background: var(--nqz-wrong);
  border-color: var(--nqz-wrong);
  color: #fff;
}

.nqz-ans-btn.reveal { opacity: 0.8; }
.nqz-ans-btn:disabled { cursor: default; }

.nqz-notation-wrap {
  display: flex;
  background: #fff;
  border: 1px solid var(--nqz-line);
  border-radius: 999px;
  overflow: hidden;
  margin-left: auto;
}

.nqz-notation-btn {
  padding: 7px 12px;
  border: none;
  background: transparent;
  color: var(--nqz-muted);
  font-size: 15px;
  font-weight: 800;
  cursor: pointer;
  transition: background 0.12s, color 0.12s;
  line-height: 1;
}

.nqz-notation-btn.active {
  background: var(--nqz-yellow);
  color: var(--nqz-ink);
}

.nqz-notation-btn:hover:not(.active) {
  color: var(--nqz-blue-deep);
}

.nqz-start-screen,
.nqz-result-screen {
  padding: 30px 16px 34px;
  text-align: center;
  background: var(--nqz-panel);
}

.nqz-mode-select,
.nqz-difficulty-select,
.nqz-share-btns,
.nqz-controls {
  display: flex;
  gap: 10px;
  justify-content: center;
  flex-wrap: wrap;
}

.nqz-mode-select { margin-bottom: 22px; }
.nqz-difficulty-select { margin-bottom: 22px; }
.nqz-share-btns { margin-bottom: 16px; }

.nqz-btn-mode,
.nqz-btn-diff {
  border: 1px solid var(--nqz-line);
  border-radius: 16px;
  background: #fff;
  color: var(--nqz-ink);
  font-weight: 800;
  cursor: pointer;
  text-align: center;
  transition: border-color 0.12s, background 0.12s, transform 0.12s;
}

.nqz-btn-mode {
  padding: 15px 20px;
  min-width: 160px;
  font-size: 14px;
}

.nqz-btn-diff {
  padding: 11px 16px;
  min-width: 104px;
  font-size: 13px;
}

.nqz-btn-mode span,
.nqz-btn-diff span {
  display: block;
  font-size: 11px;
  font-weight: 500;
  color: var(--nqz-muted);
  margin-top: 5px;
}

.nqz-btn-mode.active,
.nqz-btn-diff.active {
  border-color: var(--nqz-blue-deep);
  background: var(--nqz-blue-soft);
  color: var(--nqz-blue-deep);
}

.nqz-btn-mode:hover:not(.active),
.nqz-btn-diff:hover:not(.active) {
  background: #fffbe1;
  border-color: var(--nqz-yellow);
  transform: translateY(-1px);
}

.nqz-result-emoji { font-size: 52px; margin-bottom: 8px; }
.nqz-result-title { font-size: 24px; font-weight: 800; margin-bottom: 6px; color: var(--nqz-ink); }
.nqz-result-time { font-size: 40px; font-weight: 800; color: var(--nqz-blue-deep); margin-bottom: 16px; }

.nqz-result-stats {
  display: flex;
  gap: 24px;
  justify-content: center;
  margin-bottom: 24px;
}

.nqz-result-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.nqz-stat-label { font-size: 12px; color: var(--nqz-muted); }
.nqz-stat-value { font-size: 22px; font-weight: 800; color: var(--nqz-ink); }

.nqz-controls {
  padding: 0 16px 18px;
  background: var(--nqz-panel);
}

.nqz-btn {
  padding: 11px 22px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 800;
  cursor: pointer;
  transition: background 0.12s, border-color 0.12s, transform 0.12s;
}

.nqz-btn:hover {
  transform: translateY(-1px);
}

.nqz-btn-start,
.nqz-btn-next {
  background: var(--nqz-yellow);
  color: var(--nqz-ink);
  font-size: 16px;
  padding: 12px 32px;
}

.nqz-btn-start:hover,
.nqz-btn-next:hover {
  background: #f4d200;
}

.nqz-btn-play,
.nqz-btn-retry,
.nqz-btn-quit,
.nqz-btn-share-copy {
  background: #fff;
  color: var(--nqz-ink);
  border-color: var(--nqz-line);
}

.nqz-btn-play:hover,
.nqz-btn-retry:hover,
.nqz-btn-quit:hover,
.nqz-btn-share-copy:hover {
  background: var(--nqz-blue-soft);
  border-color: var(--nqz-blue-deep);
}

.nqz-btn-share-x { background: var(--nqz-ink); color: #fff; }
.nqz-btn-share-x:hover { background: #111820; }
.nqz-btn-share-line { background: #06c755; color: #fff; }
.nqz-btn-share-line:hover { background: #05a847; }

@media (max-width: 560px) {
  .nqz-wrap {
    border-radius: 24px;
  }

  .nqz-header {
    padding: 16px 14px;
  }

  .nqz-title {
    flex-basis: 100%;
    font-size: 21px;
  }

  .nqz-board-wrap {
    padding: 14px 8px;
  }

  .nqz-position {
    font-size: 22px;
  }

  .nqz-position--note {
    font-size: 42px;
  }

  .nqz-btn-mode {
    width: 100%;
  }

  .nqz-btn-diff {
    min-width: calc(50% - 6px);
  }
}

/* ================================================================
   SEO静的コンテンツセクション
   ================================================================ */

.nqz-seo-outer {
  --nqz-bg: #fbf8ef;
  --nqz-panel: #fffdf7;
  --nqz-blue: #d9ebf4;
  --nqz-blue-soft: #edf7fb;
  --nqz-blue-deep: #3f7897;
  --nqz-yellow: #ffe12b;
  --nqz-ink: #26323a;
  --nqz-muted: #6f7a80;
  --nqz-line: #e7dfd2;
  background: var(--nqz-bg);
  padding: 20px 14px 48px;
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans",
               "Hiragino Kaku Gothic ProN", "Noto Sans JP", sans-serif;
  color: var(--nqz-ink);
  box-sizing: border-box;
}

.nqz-seo-outer *,
.nqz-seo-outer *::before,
.nqz-seo-outer *::after {
  box-sizing: inherit;
}

.nqz-seo-wrap {
  display: grid;
  gap: 18px;
  width: min(100%, 980px);
  margin: 24px auto 0;
}

/* カード共通 */
.nqz-seo-card {
  padding: 28px 32px;
  border: 1px solid var(--nqz-line);
  border-radius: 24px;
  background: var(--nqz-panel);
  color: var(--nqz-ink);
  font-size: 15px;
  line-height: 1.85;
}

.nqz-seo-card-title {
  margin: 0 0 18px;
  font-size: 18px;
  font-weight: 900;
  line-height: 1.3;
  letter-spacing: 0;
  color: var(--nqz-ink);
  border: none;
  padding: 0;
}

.nqz-seo-card-lead {
  margin: 0 0 16px;
  color: var(--nqz-muted);
  font-size: 14px;
  line-height: 1.75;
}

.nqz-seo-card h3 {
  margin: 1.8em 0 0.5em;
  font-size: 15px;
  font-weight: 900;
  line-height: 1.4;
  color: var(--nqz-ink);
}

.nqz-seo-card p {
  margin: 0.85em 0;
}

.nqz-seo-card > p:first-of-type,
.nqz-seo-card > h3:first-child + p {
  margin-top: 0;
}

/* 指板マップノート */
.nqz-seo-map-note {
  margin: 10px 0 0;
  font-size: 13px;
  color: var(--nqz-muted);
  line-height: 1.6;
}

/* 指板音名テーブル */
.nqz-seo-table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin: 0 -4px;
}

.nqz-seo-fretboard {
  border-collapse: collapse;
  font-size: 13px;
  font-weight: 700;
  white-space: nowrap;
  min-width: 600px;
  width: 100%;
}

.nqz-seo-fretboard th,
.nqz-seo-fretboard td {
  padding: 7px 6px;
  text-align: center;
  border: 1px solid var(--nqz-line);
  line-height: 1.2;
}

.nqz-seo-fretboard thead th {
  background: var(--nqz-blue);
  color: var(--nqz-ink);
  font-weight: 900;
  font-size: 12px;
}

.nqz-seo-th-string {
  background: var(--nqz-blue-soft);
  color: var(--nqz-blue-deep);
  font-weight: 900;
  font-size: 12px;
  text-align: left !important;
  padding-left: 10px !important;
  min-width: 72px;
}

.nqz-seo-fretboard tbody td {
  background: var(--nqz-panel);
  color: var(--nqz-ink);
}

.nqz-seo-td-edge {
  background: var(--nqz-blue-soft) !important;
  font-weight: 900;
  color: var(--nqz-blue-deep) !important;
}

.nqz-seo-td-sharp {
  color: var(--nqz-muted) !important;
  font-size: 12px;
}

.nqz-seo-td-edge.nqz-seo-td-sharp {
  color: var(--nqz-blue-deep) !important;
  opacity: 0.75;
}

/* 内部リンクカード */
.nqz-seo-link-card {
  display: grid;
  grid-template-columns: 1fr auto;
  grid-template-rows: auto auto auto;
  align-items: center;
  gap: 2px 14px;
  padding: 22px 28px;
  border: 1px solid var(--nqz-line);
  border-radius: 18px;
  background: var(--nqz-blue-soft);
  color: var(--nqz-ink);
  text-decoration: none;
  transition: background 0.15s ease, border-color 0.15s ease;
}

.nqz-seo-link-card:hover {
  background: var(--nqz-blue);
  border-color: rgba(63, 120, 151, 0.3);
}

.nqz-seo-link-label {
  grid-column: 1;
  grid-row: 1;
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.1em;
  color: var(--nqz-blue-deep);
  text-transform: uppercase;
}

.nqz-seo-link-title {
  grid-column: 1;
  grid-row: 2;
  font-size: 16px;
  font-weight: 900;
  line-height: 1.3;
}

.nqz-seo-link-desc {
  grid-column: 1;
  grid-row: 3;
  margin-top: 6px;
  font-size: 13px;
  color: var(--nqz-muted);
  line-height: 1.6;
}

.nqz-seo-link-arrow {
  grid-column: 2;
  grid-row: 1 / 3;
  justify-self: end;
  font-size: 22px;
  color: var(--nqz-blue-deep);
  line-height: 1;
}

/* FAQ */
.nqz-seo-faq-item {
  padding: 18px 0;
  border-bottom: 1px solid var(--nqz-line);
}

.nqz-seo-faq-item:first-child {
  padding-top: 0;
}

.nqz-seo-faq-item:last-child {
  padding-bottom: 0;
  border-bottom: none;
}

.nqz-seo-faq-item h3 {
  margin: 0 0 8px;
  font-size: 15px;
  font-weight: 900;
  line-height: 1.45;
  color: var(--nqz-ink);
}

.nqz-seo-faq-item p {
  margin: 0;
  font-size: 14px;
  color: var(--nqz-muted);
  line-height: 1.85;
}

/* モバイル */
@media (max-width: 560px) {
  .nqz-seo-outer {
    padding: 14px 10px 34px;
  }

  .nqz-seo-card {
    padding: 20px 18px;
  }

  .nqz-seo-link-card {
    padding: 18px 20px;
  }

  .nqz-seo-link-arrow {
    display: none;
  }
}