/* ==========================================================================
   Afinador Cromático Profesional & Clavijero Visual (Estilo Ultimate Guitar)
   ========================================================================== */

.tuner-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  padding: 16px;
  box-sizing: border-box;
}

.tuner-modal-card {
  background: var(--bg-surface-solid);
  border: 1px solid var(--border-strong);
  border-radius: 18px;
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.95);
  width: 100%;
  max-width: 400px;
  max-height: calc(100vh - 100px);
  overflow-y: auto;
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  box-sizing: border-box;
  animation: tunerFadeIn 0.2s ease-out;
}

@keyframes tunerFadeIn {
  from { opacity: 0; transform: scale(0.94); }
  to { opacity: 1; transform: scale(1); }
}

.tuner-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 10px;
}

.tuner-title-group {
  display: flex;
  align-items: center;
  gap: 8px;
}

.tuner-title-group h2 {
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--text-primary);
  margin: 0;
}

.btn-close-tuner {
  background: var(--bg-surface-hover);
  border: none;
  color: var(--text-primary);
  font-size: 1rem;
  font-weight: 800;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.btn-close-tuner:hover {
  background: #ff5252;
}

/* Selector de Instrumento y Clavijero */
.tuner-instrument-select-bar {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-secondary);
}

.sel-tuner-preset {
  background: var(--bg-surface);
  border: 1px solid var(--border-strong);
  color: var(--text-primary);
  padding: 8px 12px;
  border-radius: 8px;
  font-size: 0.86rem;
  font-weight: 700;
  cursor: pointer;
  outline: none;
}

.sel-tuner-preset:focus {
  border-color: var(--accent-primary);
}

/* Selector de Modo Automático vs Manual */
.tuner-mode-pill-bar {
  display: flex;
  background: var(--bg-base);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  overflow: hidden;
  padding: 2px;
}

.btn-tuner-mode-tab {
  flex: 1;
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 0.78rem;
  font-weight: 700;
  padding: 6px 8px;
  border-radius: 6px;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-tuner-mode-tab.active {
  background: var(--accent-primary);
  color: var(--text-primary);
  box-shadow: 0 2px 8px rgba(255, 87, 34, 0.4);
}

/* Dial del Afinador */
.tuner-gauge-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  background: var(--bg-base);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  padding: 14px;
}

.tuner-note-display {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 4px;
}

.tuner-note-letter {
  font-family: var(--font-mono);
  font-size: 2.8rem;
  font-weight: 900;
  color: var(--text-primary);
  transition: color 0.1s ease;
}

.tuner-note-letter.note-in-tune {
  color: #00e676;
  text-shadow: 0 0 20px rgba(0, 230, 118, 0.7);
}

.tuner-octave-number {
  font-family: var(--font-mono);
  font-size: 1.3rem;
  color: var(--text-muted);
}

/* Aguja de Afinación */
.tuner-needle-track {
  width: 100%;
  height: 14px;
  background: var(--bg-surface-hover);
  border-radius: 7px;
  position: relative;
  overflow: hidden;
  border: 1px solid var(--border-subtle);
}

.needle-center-mark {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 3px;
  background: #00e676;
  transform: translateX(-50%);
  box-shadow: 0 0 6px #00e676;
}

.needle-indicator {
  position: absolute;
  top: 2px;
  bottom: 2px;
  width: 10px;
  background: #ff5722;
  border-radius: 5px;
  transform: translateX(-50%);
  transition: left 0.08s ease-out;
  box-shadow: 0 0 10px rgba(255, 87, 34, 0.8);
}

.needle-indicator.needle-in-tune {
  background: #00e676;
  box-shadow: 0 0 14px #00e676;
}

.tuner-cents-readout {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--text-muted);
}

.tuner-status-badge {
  font-weight: 800;
  font-size: 0.8rem;
  color: var(--text-secondary);
}

/* Clavijero Visual Interactivo (Headstock) */
.tuner-headstock-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--bg-base);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  padding: 12px 14px;
  min-height: 120px;
  position: relative;
}

.headstock-pegs-col {
  display: flex;
  flex-direction: column;
  gap: 8px;
  z-index: 2;
}

.headstock-inline .headstock-pegs-col {
  width: 100%;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.tuner-peg-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-surface-raised);
  border: 1px solid var(--border-strong);
  border-radius: 8px;
  padding: 6px 10px;
  color: var(--text-primary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.tuner-peg-btn:hover {
  background: #ff5722;
  border-color: var(--accent-primary);
}

.tuner-peg-btn.peg-active {
  border-color: #00e5ff;
  box-shadow: 0 0 10px rgba(0, 229, 255, 0.4);
}

.tuner-peg-btn.peg-in-tune {
  background: #00e676 !important;
  color: var(--bg-base) !important;
  border-color: #00e676 !important;
  font-weight: 900;
}

.peg-num {
  font-size: 0.72rem;
  color: var(--text-muted);
  font-weight: 700;
}

.peg-note {
  font-size: 0.95rem;
  font-weight: 900;
  color: var(--accent-primary);
}

.tuner-peg-btn.peg-in-tune .peg-note,
.tuner-peg-btn.peg-in-tune .peg-num,
.tuner-peg-btn.peg-in-tune .peg-hz {
  color: var(--text-inverse);
}

.peg-hz {
  font-size: 0.7rem;
  color: var(--text-secondary);
  font-family: var(--font-mono);
  margin-left: auto;
}

.headstock-neck-visual {
  width: 40px;
  height: 90px;
  background: linear-gradient(180deg, #2b1f14 0%, #1a120c 100%);
  border-radius: 6px;
  position: relative;
  margin: 0 auto;
}

.headstock-nut {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 6px;
  background: #eae2d6;
  border-radius: 3px 3px 0 0;
}

.tuner-actions {
  display: flex;
  margin-top: 4px;
}