/* ===== ABSOLUTE PITCH TRAINER ===== */

.ap-stage {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2rem;
  padding: 20px;
  animation: apFadeIn 0.4s ease-out;
}

@keyframes apFadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Play Button */
.ap-play-wrap {
  perspective: 1000px;
}

.ap-play-btn {
  width: 140px;
  height: 140px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border: none;
  font-size: 3.5rem;
  color: white;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 10px 25px rgba(139, 92, 246, 0.4);
  transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  position: relative;
  z-index: 1;
}

.ap-play-btn::after {
  content: '';
  position: absolute;
  top: -5px;
  left: -5px;
  right: -5px;
  bottom: -5px;
  border-radius: 50%;
  border: 2px solid var(--primary);
  opacity: 0;
  transition: all 0.3s;
}

.ap-play-btn:hover {
  transform: scale(1.05) rotate(5deg);
  box-shadow: 0 15px 35px rgba(139, 92, 246, 0.6);
}

.ap-play-btn:active {
  transform: scale(0.92);
}

.ap-play-btn.playing {
  animation: apPulse 0.5s infinite alternate ease-in-out;
}

@keyframes apPulse {
  from { transform: scale(1); box-shadow: 0 10px 20px rgba(139, 92, 246, 0.3); }
  to { transform: scale(1.1); box-shadow: 0 15px 35px rgba(139, 92, 246, 0.6); }
}

/* Answer Buttons Grid */
.ap-answer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(80px, 1fr));
  gap: 12px;
  width: 100%;
  max-width: 500px;
}

.ap-note-btn {
  background: var(--bg-3);
  border: 1px solid var(--border-2);
  border-radius: var(--radius);
  padding: 16px 8px;
  color: var(--text);
  font-family: var(--font-main);
  font-size: 1.1rem;
  font-weight: 800;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.ap-note-btn:hover {
  background: var(--bg-4);
  border-color: var(--primary);
  transform: translateY(-2px);
}

.ap-note-btn:active {
  transform: scale(0.95);
}

.ap-note-btn .note-alpha {
  font-size: 0.7rem;
  opacity: 0.6;
  font-weight: 400;
}

/* Note Colors (Bloomwhackers style-ish) */
.ap-note-btn[data-note="C"] { border-bottom: 4px solid #ef4444; } /* Red */
.ap-note-btn[data-note="D"] { border-bottom: 4px solid #f97316; } /* Orange */
.ap-note-btn[data-note="E"] { border-bottom: 4px solid #eab308; } /* Yellow */
.ap-note-btn[data-note="F"] { border-bottom: 4px solid #84cc16; } /* Light Green */
.ap-note-btn[data-note="G"] { border-bottom: 4px solid #22c55e; } /* Green */
.ap-note-btn[data-note="A"] { border-bottom: 4px solid #8b5cf6; } /* Purple */
.ap-note-btn[data-note="B"] { border-bottom: 4px solid #ec4899; } /* Pink */
.ap-note-btn[data-note="C2"] { border-bottom: 4px solid #ef4444; border-bottom-style: double; }

/* Message / Feedback */
.ap-message {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-2);
  min-height: 1.4em;
  text-align: center;
}

.ap-message.correct { color: var(--accent); animation: apBounce 0.4s; }
.ap-message.wrong { color: var(--secondary); animation: apShake 0.4s; }

@keyframes apBounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

@keyframes apShake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-5px); }
  75% { transform: translateX(5px); }
}

/* Responsive adjustment */
@media (max-width: 360px) {
  .ap-answer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}