/* ── Note Quest — Mobile-first responsive + dark mode ── */

.note-quest-wrapper {
  --nq-bg: #f0e6ff;
  --nq-card: #ffffff;
  --nq-primary: #7c3aed;
  --nq-primary-light: #a78bfa;
  --nq-correct: #22c55e;
  --nq-wrong: #ef4444;
  --nq-text: #1e1b4b;
  --nq-text-light: #6b7280;
  --nq-shadow: 0 4px 20px rgba(124, 58, 237, 0.15);
  --nq-hover-bg: #f5f0ff;

  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  color: var(--nq-text);
  display: flex;
  flex-direction: column;
  align-items: center;
  overflow-x: hidden;
  padding: 16px 0;
}

/* ── Dark mode (system preference via site's colorscheme-auto) ── */
body.colorscheme-auto .note-quest-wrapper {
  @media (prefers-color-scheme: dark) {
    --nq-bg: #1a1625;
    --nq-card: #2d2640;
    --nq-text: #e8e0f0;
    --nq-text-light: #9b8fb8;
    --nq-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    --nq-hover-bg: #3a3055;
  }
}

body.colorscheme-dark .note-quest-wrapper {
  --nq-bg: #1a1625;
  --nq-card: #2d2640;
  --nq-text: #e8e0f0;
  --nq-text-light: #9b8fb8;
  --nq-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
  --nq-hover-bg: #3a3055;
}

/* Invert VexFlow SVG for dark mode (staff lines, noteheads) */
body.colorscheme-auto .note-quest-wrapper .staff-card svg {
  @media (prefers-color-scheme: dark) {
    filter: invert(1) hue-rotate(180deg);
  }
}

body.colorscheme-dark .note-quest-wrapper .staff-card svg {
  filter: invert(1) hue-rotate(180deg);
}

/* ── Header ── */
.note-quest-wrapper .nq-header {
  width: 100%;
  max-width: 600px;
  padding: 12px 16px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.note-quest-wrapper .nq-logo {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--nq-primary);
}

.note-quest-wrapper .nq-progress {
  font-size: 1rem;
  font-weight: 600;
  color: var(--nq-text-light);
}

/* ── Container ── */
.note-quest-wrapper .nq-container {
  width: 100%;
  max-width: 600px;
  padding: 0 12px 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  flex: 1;
}

/* ── Staff card ── */
.note-quest-wrapper .staff-card {
  background: var(--nq-card);
  border-radius: 16px;
  box-shadow: var(--nq-shadow);
  width: 100%;
  padding: 8px 8px 0 8px;
  margin-bottom: 16px;
  display: flex;
  justify-content: center;
  overflow: hidden;
  scroll-margin-top: 12px;
}

.note-quest-wrapper .staff-card svg {
  display: block;
  max-width: 100%;
  height: auto;
}

/* ── Choice buttons ── */
.note-quest-wrapper .choices {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  width: 100%;
  margin-bottom: 12px;
}

.note-quest-wrapper .choice-btn {
  font-size: 1.3rem;
  font-weight: 700;
  padding: 16px;
  border: 3px solid var(--nq-primary-light);
  border-radius: 14px;
  background: var(--nq-card);
  color: var(--nq-primary);
  cursor: pointer;
  transition: all 0.15s;
  -webkit-tap-highlight-color: transparent;
  user-select: none;
}

.note-quest-wrapper .choice-btn:active:not(.disabled) {
  transform: scale(0.96);
}

.note-quest-wrapper .choice-btn:hover:not(.disabled) {
  border-color: var(--nq-primary);
  background: var(--nq-hover-bg);
  box-shadow: 0 4px 16px rgba(124, 58, 237, 0.15);
}

.note-quest-wrapper .choice-btn.correct {
  background: var(--nq-correct);
  border-color: var(--nq-correct);
  color: white;
  animation: nqPopCorrect 0.4s ease;
}

.note-quest-wrapper .choice-btn.wrong {
  background: var(--nq-wrong);
  border-color: var(--nq-wrong);
  color: white;
  animation: nqShake 0.4s ease;
}

.note-quest-wrapper .choice-btn.reveal {
  background: var(--nq-correct);
  border-color: var(--nq-correct);
  color: white;
}

.note-quest-wrapper .choice-btn.disabled {
  cursor: default;
  opacity: 0.7;
}

@keyframes nqPopCorrect {
  0% { transform: scale(1); }
  40% { transform: scale(1.1); }
  100% { transform: scale(1); }
}

@keyframes nqShake {
  0%, 100% { transform: translateX(0); }
  20% { transform: translateX(-8px); }
  40% { transform: translateX(8px); }
  60% { transform: translateX(-6px); }
  80% { transform: translateX(4px); }
}

/* ── Stats bar ── */
.note-quest-wrapper .stats-bar {
  width: 100%;
  display: flex;
  justify-content: space-around;
  padding: 12px 12px;
  background: var(--nq-card);
  border-radius: 12px;
  box-shadow: var(--nq-shadow);
  font-weight: 600;
  font-size: 1rem;
  color: var(--nq-text-light);
}

.note-quest-wrapper .stats-bar span {
  display: flex;
  align-items: center;
  gap: 6px;
}

/* ── Screens ── */
.note-quest-wrapper .nq-screen {
  display: none;
  width: 100%;
  max-width: 600px;
  flex-direction: column;
  align-items: center;
  padding: 0 12px;
  flex: 1;
}

.note-quest-wrapper .nq-screen.active {
  display: flex;
}

/* ── Start screen ── */
.note-quest-wrapper .start-screen {
  justify-content: center;
  gap: 20px;
  text-align: center;
  padding-bottom: 40px;
}

.note-quest-wrapper .start-screen p {
  font-size: 1rem;
  color: var(--nq-text-light);
  max-width: 360px;
}

.note-quest-wrapper .difficulty-btns {
  display: flex;
  flex-direction: column;
  gap: 12px;
  width: 100%;
  max-width: 460px;
}

.note-quest-wrapper .diff-btn {
  font-size: 1.4rem;
  font-weight: 700;
  padding: 18px 20px;
  border: none;
  border-radius: 14px;
  color: white;
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.15s;
  -webkit-tap-highlight-color: transparent;
}

.note-quest-wrapper .diff-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
}

.note-quest-wrapper .diff-btn:active {
  transform: scale(0.97);
}

.note-quest-wrapper .diff-btn.easy {
  background: linear-gradient(135deg, #22c55e, #16a34a);
}

.note-quest-wrapper .diff-btn.medium {
  background: linear-gradient(135deg, #f59e0b, #d97706);
}

.note-quest-wrapper .diff-btn.hard {
  background: linear-gradient(135deg, #ef4444, #dc2626);
}

.note-quest-wrapper .diff-btn small {
  font-weight: 400;
  opacity: 0.85;
  display: block;
  font-size: 1rem;
  margin-top: 2px;
}

/* ── Results screen ── */
.note-quest-wrapper .results-screen {
  justify-content: center;
  gap: 16px;
  text-align: center;
  padding-bottom: 40px;
}

.note-quest-wrapper .results-screen h2 {
  font-size: 2rem;
  color: var(--nq-primary);
}

.note-quest-wrapper .stars {
  font-size: 2.2rem;
  letter-spacing: 6px;
}

.note-quest-wrapper .results-stats {
  background: var(--nq-card);
  border-radius: 14px;
  padding: 20px 24px;
  box-shadow: var(--nq-shadow);
  display: flex;
  flex-direction: column;
  gap: 14px;
  width: 100%;
}

.note-quest-wrapper .results-stats .stat-row {
  display: flex;
  justify-content: space-between;
  font-size: 1.2rem;
}

.note-quest-wrapper .stat-row .label {
  color: var(--nq-text-light);
}

.note-quest-wrapper .stat-row .value {
  font-weight: 700;
}

.note-quest-wrapper .play-again-btn {
  font-size: 1.3rem;
  font-weight: 700;
  padding: 18px 44px;
  border: none;
  border-radius: 14px;
  background: var(--nq-primary);
  color: white;
  cursor: pointer;
  transition: transform 0.15s;
  -webkit-tap-highlight-color: transparent;
}

.note-quest-wrapper .play-again-btn:active {
  transform: scale(0.97);
}

/* ── Confetti ── */
.note-quest-wrapper #nqConfetti {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 100;
}

/* ── Desktop / tablet breakpoint ── */
@media (min-width: 480px) {
  .note-quest-wrapper {
    padding: 24px 0;
  }

  .note-quest-wrapper .nq-header {
    padding: 16px 20px;
  }

  .note-quest-wrapper .nq-logo {
    font-size: 1.4rem;
  }

  .note-quest-wrapper .nq-progress {
    font-size: 1.1rem;
  }

  .note-quest-wrapper .nq-container {
    padding: 0 16px 24px;
  }

  .note-quest-wrapper .staff-card {
    border-radius: 20px;
    padding: 10px 10px 0 10px;
    margin-bottom: 20px;
  }

  .note-quest-wrapper .choices {
    gap: 14px;
    margin-bottom: 16px;
  }

  .note-quest-wrapper .choice-btn {
    font-size: 1.75rem;
    padding: 24px;
    border-radius: 16px;
  }

  .note-quest-wrapper .stats-bar {
    padding: 14px 16px;
    border-radius: 14px;
    font-size: 1.4rem;
  }

  .note-quest-wrapper .stats-bar span {
    gap: 8px;
  }

  .note-quest-wrapper .nq-screen {
    padding: 0 16px;
  }

  .note-quest-wrapper .start-screen {
    gap: 24px;
    padding-bottom: 60px;
  }

  .note-quest-wrapper .start-screen p {
    font-size: 1.1rem;
  }

  .note-quest-wrapper .difficulty-btns {
    gap: 16px;
  }

  .note-quest-wrapper .diff-btn {
    font-size: 1.8rem;
    padding: 26px 28px;
    border-radius: 16px;
  }

  .note-quest-wrapper .diff-btn small {
    font-size: 1.15rem;
    margin-top: 4px;
  }

  .note-quest-wrapper .results-screen {
    gap: 20px;
    padding-bottom: 60px;
  }

  .note-quest-wrapper .results-screen h2 {
    font-size: 2.6rem;
  }

  .note-quest-wrapper .stars {
    font-size: 3rem;
    letter-spacing: 8px;
  }

  .note-quest-wrapper .results-stats {
    padding: 32px 44px;
    border-radius: 16px;
    gap: 18px;
    min-width: 300px;
    width: auto;
  }

  .note-quest-wrapper .results-stats .stat-row {
    font-size: 1.5rem;
  }

  .note-quest-wrapper .play-again-btn {
    font-size: 1.6rem;
    padding: 22px 56px;
    border-radius: 16px;
  }
}