/* ==========================================================================
   Herramientas Pro - Layout Panorámico (Claude Design / Natural)
   ========================================================================== */

/* Overlay y Contenedor Principal */
.tool-modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 10000;
  display: none;
  justify-content: center;
  align-items: center;
  padding: 20px;
}
.tool-modal-overlay.active {
  display: flex;
}

.tool-modal-dialog {
  background: var(--bg-surface);
  width: 100%;
  max-width: 1100px;
  max-height: 90vh;
  border-radius: 20px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15), 0 1px 3px rgba(0, 0, 0, 0.05);
  border: 1px solid var(--border-subtle);
  animation: slideUpModal 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes slideUpModal {
  from { opacity: 0; transform: translateY(20px) scale(0.98); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

/* Cabecera del Modal */
.tool-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  border-bottom: 1px solid var(--border-subtle);
  background: var(--bg-surface-solid);
}

.tool-modal-title {
  display: flex;
  align-items: center;
  gap: 14px;
}

.tool-modal-icon {
  font-size: 2rem;
}

.tool-badge-studio {
  display: block;
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  color: var(--accent-primary);
  margin-bottom: 2px;
}

.tool-modal-title h2 {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0;
  letter-spacing: -0.02em;
}

.btn-close-tool-modal {
  background: transparent;
  border: none;
  font-size: 1.4rem;
  color: var(--text-muted);
  cursor: pointer;
  padding: 8px;
  border-radius: 50%;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
}
.btn-close-tool-modal:hover {
  background: var(--bg-surface-hover);
  color: var(--text-primary);
}

/* Layout Panorámico (Columnas) */
.tool-panoramic-layout {
  display: grid;
  grid-template-columns: 1fr;
  flex: 1;
  overflow-y: auto;
}

@media (min-width: 800px) {
  .tool-panoramic-layout {
    grid-template-columns: 2fr 1fr;
  }
}

.tool-panoramic-main {
  padding: 30px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.tool-panoramic-side {
  padding: 30px;
  background: var(--bg-surface-raised);
  border-left: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  gap: 24px;
}

/* ==========================================================================
   Comunes: Píldoras y Controles
   ========================================================================== */
.metro-param-group, .dict-group {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.metronome-side-controls {
  display: flex;
  flex-direction: column;
  gap: 28px;
  padding: 10px 0;
}

.metro-param-label {
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--text-secondary);
  margin-bottom: 10px;
  display: block;
}

.metro-pill-grid, .dict-pill-grid, .capo-input-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.metro-pill-btn, .dict-pill-btn, .dict-inst-btn {
  padding: 10px 18px;
  border-radius: 20px;
  border: 1px solid var(--border-subtle);
  background: var(--bg-surface-raised);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-primary);
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.2, 0.8, 0.2, 1);
  box-shadow: 0 2px 6px rgba(0,0,0,0.04);
}

.metro-pill-btn:hover, .dict-pill-btn:hover, .dict-inst-btn:hover {
  background: var(--bg-surface-hover);
  border-color: var(--border-strong);
  transform: translateY(-2px);
  box-shadow: 0 6px 14px rgba(0,0,0,0.08);
}

.metro-pill-btn.active, .dict-pill-btn.active, .dict-inst-btn.active {
  background: var(--text-primary);
  color: var(--bg-base);
  border-color: var(--text-primary);
  box-shadow: 0 6px 16px rgba(0,0,0,0.15);
  transform: translateY(-1px);
}

/* ==========================================================================
   Metrónomo
   ========================================================================== */
.metronome-visual-bpm-box {
  text-align: center;
  padding: 20px 0;
}
.metronome-tempo-name {
  display: block;
  font-size: 1rem;
  font-weight: 600;
  color: var(--accent-primary);
  margin-bottom: 4px;
}
.metronome-bpm-big {
  font-size: 6rem;
  font-weight: 800;
  line-height: 1;
  color: var(--text-primary);
  font-feature-settings: "tnum";
}
.metronome-bpm-label {
  display: block;
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-top: 4px;
}

.metronome-led-strip {
  display: flex;
  justify-content: center;
  gap: 12px;
}
.metronome-beat-dot {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--border-strong);
  transition: all 0.1s;
}
.metronome-beat-dot.active { background: var(--text-primary); transform: scale(1.2); }
.metronome-beat-dot.accent.active { background: var(--accent-primary); box-shadow: 0 0 10px var(--accent-primary); transform: scale(1.3); }

.metronome-stepper-row {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--bg-surface-raised);
  padding: 12px 16px;
  border-radius: 12px;
}
.btn-bpm-step {
  width: 40px;
  height: 40px;
  border-radius: 8px;
  border: 1px solid var(--border-subtle);
  background: var(--bg-surface-solid);
  font-weight: 700;
  color: var(--text-primary);
  cursor: pointer;
}
.bpm-slider-full { flex: 1; accent-color: var(--accent-primary); }

.metronome-action-cluster {
  display: flex;
  gap: 16px;
}
.btn-metronome-main, .btn-tap-tempo {
  flex: 1;
  padding: 18px;
  border-radius: 12px;
  font-size: 1.1rem;
  font-weight: 700;
  cursor: pointer;
  border: none;
}
.btn-metronome-main { background: var(--accent-secondary); color: white; }
.btn-metronome-main.active { background: #d32f2f; }
.btn-tap-tempo { background: var(--bg-surface-raised); border: 1px solid var(--border-strong); color: var(--text-primary); }

/* ==========================================================================
   Afinador Pro (Switcher de Modos, Automático con Micrófono y Diapasón Manual)
   ========================================================================== */
.tuner-mode-switcher {
  display: flex;
  background: var(--bg-surface-raised);
  border-bottom: 1px solid var(--border-subtle);
  padding: 6px 16px;
  gap: 8px;
}

.tuner-mode-tab-btn {
  flex: 1;
  padding: 10px 16px;
  border-radius: 10px;
  border: 1px solid transparent;
  background: transparent;
  color: var(--text-secondary);
  font-weight: 700;
  font-size: 0.88rem;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.tuner-mode-tab-btn:hover {
  background: var(--bg-surface-hover);
  color: var(--text-primary);
}

.tuner-mode-tab-btn.active {
  background: var(--bg-surface-solid);
  color: var(--accent-primary);
  border-color: var(--border-subtle);
  box-shadow: var(--shadow-xs);
}

.auto-tuner-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  padding: 20px;
  background: var(--bg-surface-solid);
  border: 1px solid var(--border-subtle);
  border-radius: 16px;
  text-align: center;
}

.tuner-status-pill {
  font-size: 0.85rem;
  font-weight: 800;
  padding: 6px 16px;
  border-radius: 20px;
  background: var(--bg-surface-raised);
  color: var(--text-secondary);
  border: 1px solid var(--border-subtle);
  transition: all var(--transition-fast);
}

.tuner-status-pill.in-tune {
  background: rgba(0, 230, 118, 0.15);
  color: #00e676;
  border-color: rgba(0, 230, 118, 0.4);
}

.tuner-status-pill.flat {
  background: rgba(33, 150, 243, 0.15);
  color: #2196f3;
  border-color: rgba(33, 150, 243, 0.4);
}

.tuner-status-pill.sharp {
  background: rgba(255, 82, 82, 0.15);
  color: #ff5252;
  border-color: rgba(255, 82, 82, 0.4);
}

.tuner-detected-note-box {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.tuner-note-huge {
  font-size: 4.5rem;
  font-weight: 900;
  color: var(--text-primary);
  line-height: 1;
}

.tuner-freq-badge {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-secondary);
}

.tuner-cents-badge {
  font-size: 0.88rem;
  font-weight: 800;
  color: var(--accent-secondary);
}

.tuner-meter-track {
  width: 100%;
  max-width: 320px;
  height: 12px;
  background: var(--bg-surface-raised);
  border: 1px solid var(--border-strong);
  border-radius: 10px;
  position: relative;
  overflow: visible;
  margin: 10px 0 4px 0;
}

.meter-center-mark {
  position: absolute;
  top: -4px;
  bottom: -4px;
  left: 50%;
  width: 3px;
  background: #00e676;
  transform: translateX(-50%);
  border-radius: 2px;
}

.tuner-meter-needle {
  position: absolute;
  top: -6px;
  bottom: -6px;
  left: 50%;
  width: 14px;
  height: 24px;
  background: var(--accent-primary);
  border-radius: 4px;
  transform: translateX(-50%);
  transition: transform 0.1s ease-out;
  box-shadow: 0 0 10px rgba(0,0,0,0.3);
}

.meter-scale-labels {
  display: flex;
  justify-content: space-between;
  width: 100%;
  max-width: 320px;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-muted);
}

.in-tune-mark {
  color: #00e676;
}

.btn-toggle-mic-main {
  padding: 14px 28px;
  border-radius: 28px;
  border: none;
  background: var(--accent-primary);
  color: #ffffff;
  font-size: 0.95rem;
  font-weight: 800;
  cursor: pointer;
  transition: all var(--transition-fast);
  box-shadow: var(--shadow-sm);
  margin-top: 10px;
}

.btn-toggle-mic-main:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-toggle-mic-main.active {
  background: #ff5252;
}

.tuner-select-full {
  width: 100%;
  padding: 12px;
  border-radius: 8px;
  border: 1px solid var(--border-subtle);
  background: var(--bg-surface-solid);
  font-size: 1rem;
  color: var(--text-primary);
  font-weight: 600;
}
.tuner-strings-vertical-rack {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.tuner-string-card {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  border-radius: 12px;
  border: 1px solid var(--border-subtle);
  background: var(--bg-surface-solid);
  cursor: pointer;
  transition: all 0.2s;
}
.tuner-string-card:hover { border-color: var(--accent-primary); transform: translateX(4px); }
.string-card-left { display: flex; flex-direction: column; align-items: flex-start; }
.string-badge-num { font-size: 0.8rem; color: var(--text-secondary); font-weight: 600; text-transform: uppercase; }
.string-note-big { font-size: 1.8rem; font-weight: 800; color: var(--text-primary); line-height: 1.2; }
.string-card-right { display: flex; flex-direction: column; align-items: flex-end; }
.string-freq-label { font-size: 1.1rem; color: var(--text-primary); font-weight: 600; font-feature-settings: "tnum"; }
.string-action-btn { font-size: 0.85rem; color: var(--accent-primary); font-weight: 700; margin-top: 4px; }

.tuner-side-header h3 { font-size: 1.1rem; margin: 4px 0 10px 0; }
.tuner-instruction-text { font-size: 0.9rem; color: var(--text-secondary); line-height: 1.6; }
.tuner-ref-freq-pill { margin-top: 20px; padding: 10px; background: rgba(0,0,0,0.04); border-radius: 8px; text-align: center; font-size: 0.85rem; font-weight: 600; }

.tuner-guide-summary {
  font-size: 0.88rem;
  font-weight: 800;
  color: var(--accent-primary);
  cursor: pointer;
}

@media (max-width: 600px) {
  .tool-modal-overlay {
    padding: 8px;
  }
  .tool-panoramic-main, .tool-panoramic-side {
    padding: 16px;
    gap: 16px;
  }
  .metronome-bpm-big {
    font-size: 4rem;
  }
  .tuner-note-huge {
    font-size: 3.2rem;
  }
}

/* ==========================================================================
   Diccionario de Acordes
   ========================================================================== */
.dict-preview-card { text-align: center; }
.dict-chord-title-big { font-size: 3rem; font-weight: 800; display: block; margin-bottom: 10px; }
.btn-dict-audition { padding: 10px 20px; border-radius: 20px; border: none; background: var(--accent-primary); color: white; font-weight: 600; cursor: pointer; }
.dict-svg-viewport { margin-top: 20px; width: 100%; max-width: 250px; margin-left: auto; margin-right: auto; }
.dict-svg-viewport svg { width: 100%; height: auto; }

/* ==========================================================================
   Entrenador de Oído
   ========================================================================== */
.ear-challenge-card { text-align: center; padding: 40px 0; }
.ear-question-text { font-size: 1.5rem; font-weight: 700; color: var(--text-primary); margin-bottom: 20px; }
.ear-answer-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.btn-ear-answer { padding: 16px; border-radius: 12px; border: 1px solid var(--border-subtle); background: var(--bg-surface-solid); font-size: 1.1rem; font-weight: 600; cursor: pointer; }
.btn-ear-answer:hover { border-color: var(--accent-primary); }

/* ==========================================================================
   Cejilla (Capo)
   ========================================================================== */
.capo-selector-box select { width: 100%; padding: 12px; border-radius: 8px; border: 1px solid var(--border-subtle); font-size: 1rem; font-weight: 600; }
.capo-result-card { background: var(--accent-primary); color: white; padding: 24px; border-radius: 16px; text-align: center; margin-top: 20px; }
.capo-result-badge { font-size: 0.8rem; font-weight: 800; letter-spacing: 0.05em; opacity: 0.9; display: block; margin-bottom: 10px; }
.capo-result-fret-big { font-size: 2.5rem; font-weight: 900; line-height: 1; display: block; }
.capo-result-desc { font-size: 0.95rem; opacity: 0.9; margin-top: 10px; }
.capo-table-wrapper { margin-top: 20px; background: var(--bg-surface-solid); border: 1px solid var(--border-subtle); border-radius: 12px; overflow: hidden; }
.capo-transposition-table { width: 100%; border-collapse: collapse; text-align: center; }
.capo-transposition-table th { background: var(--bg-surface-raised); padding: 12px; font-size: 0.85rem; color: var(--text-secondary); font-weight: 600; }
.capo-transposition-table td { padding: 12px; border-top: 1px solid var(--border-subtle); font-weight: 600; }

/* ==========================================================================
   Círculo de Quintas
   ========================================================================== */
.circle-canvas-container { display: flex; justify-content: center; align-items: center; padding: 20px; }
.circle-key-info-card { background: var(--bg-surface-solid); border: 1px solid var(--border-subtle); border-radius: 12px; padding: 20px; }
.circle-key-info-card h3 { font-size: 1.2rem; margin: 0 0 10px 0; }