/* UI simples do Afinador */
:root {
  --afinador-bg: #ffffff;
}

/* --- Estilos do Card do Afinador --- */
.afinador-wrapper {
  padding-top: calc(5rem + 2vw);
  display: flex;
  justify-content: center;
}

.afinador-card {
  width: 100%;
  max-width: 680px;
  background: var(--bg-card-white);
  border-radius: var(--radius-lg);
  padding: 2rem;
  margin: 0 4vw 4vw;
  text-align: center;
}

.afinador-title {
  font-size: clamp(1.8rem, 3.2vw, 2.4rem);
  font-weight: 800;
  margin-bottom: 0.5rem;
}

.afinador-subtitle {
  color: var(--accent-brown);
  opacity: 0.9;
  margin-bottom: 1.5rem;
}

/* Painel de Exibição das Notas */
.afinador-display {
  padding: 1.5rem;
  border-radius: var(--radius-md);
  margin-bottom: 1.5rem;
  background: var(--bg-page);
}

.afinador-note {
  font-size: 4rem;
  font-weight: 900;
  line-height: 1;
  color: var(--accent-brown);
}

.afinador-freq {
  margin-top: 0.5rem;
  font-size: 1.1rem;
  font-weight: 700;
  opacity: 0.85;
}

/* Painel de Ponteiro (Medidor) */
.afinador-meter {
  position: relative;
  height: 80px;
  border-radius: var(--radius-md);
  background: var(--bg-page);
  border: var(--border-width) solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  margin-bottom: 2rem;
}

.meter-line {
  width: 80%;
  height: 6px;
  background: linear-gradient(90deg, #d9534f 15%, var(--accent-brown) 50%, #5cb85c 85%);
  border-radius: 50px;
  border: 1px solid var(--border-color);
}

.meter-pointer {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 18px;
  height: 18px;
  background: var(--accent-brown);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  border: 2px solid var(--bg-card-white);
  box-shadow: 0 0 10px rgba(97, 43, 6, 0.3);
  /* Transição suave do movimento do LERP */
  transition: transform 0.05s linear; 
}

/* ==========================================================================
   NOVO: Botão Único de Microfone Redondo (Idêntico ao do mockup)
   ========================================================================== */
.tuner-action-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 2rem;
}

.mic-toggle-btn {
  width: 4rem;
  height: 4rem;
  border-radius: 50%;
  background-color: var(--bg-card-green); /* Verde sálvia padrão (Desligado) */
  color: var(--accent-brown);
  border: var(--border-width) solid var(--border-color);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color 0.3s ease, transform 0.2s ease, box-shadow 0.3s ease;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.mic-toggle-btn:hover {
  transform: scale(1.05);
}

/* Estado de Gravação / Ouvindo (Fica Vermelho) */
.mic-toggle-btn.recording {
  background-color: #d9534f; /* Vermelho Gravação */
  color: #ffffff;
  box-shadow: 0 0 15px rgba(217, 83, 79, 0.6);
  animation: pulse-recording 1.5s infinite alternate;
}

.mic-icon {
  width: 1.8rem;
  height: 1.8rem;
}

.tuner-status-text {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  opacity: 0.8;
}

@keyframes pulse-recording {
  0% { transform: scale(1); box-shadow: 0 0 10px rgba(217, 83, 79, 0.5); }
  100% { transform: scale(1.06); box-shadow: 0 0 20px rgba(217, 83, 79, 0.8); }
}

/* ==========================================================================
   NOVO: Guia de Cordas em Linha Única Horizontal
   ========================================================================== */
.guitar-guide {
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: var(--border-width) dashed var(--border-color);
  width: 100%;
}

.strings-container {
  display: flex;
  justify-content: space-between;
  gap: 0.5rem;
  width: 100%;
}

.string-btn {
  flex: 1;
  background-color: var(--bg-card-white);
  color: var(--accent-brown);
  padding: 0.8rem 0.4rem;
  border-radius: var(--radius-md);
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.2rem;
  min-width: 0; /* Previne quebras raras de texto */
  transition: transform 0.15s ease, background-color 0.2s, color 0.2s;
}

.string-btn:hover {
  transform: translateY(-3px);
  background-color: var(--accent-brown);
  color: var(--bg-card-green);
}

.string-note {
  font-size: 1.3rem;
  font-weight: 800;
  line-height: 1;
}

.string-num {
  font-size: 0.75rem;
  font-weight: 700;
  opacity: 0.8;
}

.afinador-hint {
  margin-top: 1.5rem;
  font-size: 0.85rem;
  font-weight: 600;
  opacity: 0.8;
}

@media (max-width: 480px) {
  .strings-container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.5rem;
  }
}



/* --- Responsivo comum --- */
@media (max-width: 768px) {
  
  .afinador-card{
    margin: 0;
  }


}