/**
 * Fijate Tools - Calculadora de retardo, reverb y frecuencias armónicas
 * Hoja de estilos moderna y responsiva (css/style.css)
 */

:root {
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-heading: 'Outfit', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Tema oscuro */
  --bg-app: #080c14;
  --bg-card: rgba(15, 23, 42, 0.75);
  --bg-card-solid: #0f172a;
  --bg-card-hover: rgba(30, 41, 59, 0.9);
  --border-card: rgba(255, 255, 255, 0.08);
  --border-focus: #38bdf8;

  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;

  --accent-cyan: #38bdf8;
  --accent-gold: #f59e0b;
  --accent-green: #10b981;
  --accent-purple: #a855f7;

  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --radius-pill: 9999px;

  --shadow-card: 0 10px 25px -5px rgba(0, 0, 0, 0.4), 0 8px 10px -6px rgba(0, 0, 0, 0.25);
  --transition-fast: 0.18s ease;
  --transition-normal: 0.25s ease;
}

[data-theme="light"] {
  --bg-app: #f1f5f9;
  --bg-card: rgba(255, 255, 255, 0.9);
  --bg-card-solid: #ffffff;
  --bg-card-hover: #f8fafc;
  --border-card: rgba(0, 0, 0, 0.09);
  --border-focus: #0284c7;

  --text-main: #0f172a;
  --text-muted: #475569;
  --text-dim: #94a3b8;

  --shadow-card: 0 10px 25px -5px rgba(0, 0, 0, 0.08), 0 4px 6px -2px rgba(0, 0, 0, 0.04);
}

/* ==========================================================================
   2. REINICIO Y ESTRUCTURA BASE
   ========================================================================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-app);
  color: var(--text-main);
  line-height: 1.5;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: clip;
}

.tool-layout {
  max-width: 1240px;
  margin: 1.5rem auto 3rem;
  padding: 0 1rem;
  width: 100%;
}

.tool-with-sidebar {
  display: flex;
  gap: 2rem;
  align-items: flex-start;
  width: 100%;
}

.tool-main-content {
  flex: 1 1 0%;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.card-main {
  background: var(--bg-card);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  box-shadow: var(--shadow-card);
}

.section-h2 {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 0.35rem;
}

.section-lead {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin-bottom: 1.25rem;
}

/* ==========================================================================
   3. HERO DE CONFIGURACIÓN DE TEMPO (BPM)
   ========================================================================== */
.tempo-hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: center;
}

@media (max-width: 840px) {
  .tempo-hero-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
}

.tempo-input-box {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.tempo-display-row {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.bpm-input-giant {
  font-family: var(--font-mono);
  font-size: 3.4rem;
  font-weight: 800;
  color: var(--text-main);
  background: transparent;
  border: none;
  border-bottom: 2px solid var(--border-card);
  width: 190px;
  text-align: left;
  line-height: 1;
}

.bpm-input-giant:focus {
  outline: none;
  border-color: var(--accent-cyan);
}

.bpm-label-giant {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--accent-cyan);
}

.bpm-slider {
  width: 100%;
  accent-color: var(--accent-cyan);
  height: 40px;
  cursor: pointer;
}

.quick-presets-row {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-top: 0.35rem;
}

.btn-quick-tempo {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  background: var(--bg-card-solid);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  padding: 6px 10px;
  min-height: 38px;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-quick-tempo:hover {
  border-color: var(--accent-cyan);
  color: var(--text-main);
}

/* Lado derecho del hero: Tap tempo y compás */
.tempo-extra-controls {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.btn-tap-large {
  min-height: 52px;
  background: var(--accent-cyan);
  color: #032736;
  border: none;
  border-radius: var(--radius-md);
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 800;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  cursor: pointer;
  transition: all var(--transition-fast);
  box-shadow: 0 4px 14px rgba(56, 189, 248, 0.35);
  user-select: none;
}

.btn-tap-large:active {
  transform: scale(0.97);
}

.tap-indicator {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
  background: rgba(0, 0, 0, 0.18);
  padding: 2px 8px;
  border-radius: var(--radius-pill);
}

.time-signature-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

.app-select {
  width: 100%;
  max-width: 180px;
  min-width: 0;
  text-overflow: ellipsis;
  white-space: nowrap;
  overflow: hidden;
  height: 44px;
  padding: 0 35px 0 1rem;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 600;
  background-color: var(--bg-card-solid);
  color: var(--text-main);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  cursor: pointer;
}

/* ==========================================================================
   4. TABLA PRINCIPAL DE TIEMPOS DE DELAY (MS Y HZ)
   ========================================================================== */
.table-responsive-wrapper {
  width: 100%;
  overflow-x: auto;
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
}

.delay-data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
  min-width: 680px;
}

.delay-data-table th,
.delay-data-table td {
  padding: 0.95rem 1rem;
  border-bottom: 1px solid var(--border-card);
  text-align: left;
}

.delay-data-table th {
  background: rgba(0, 0, 0, 0.25);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
}

.delay-data-table tbody tr:hover {
  background: rgba(255, 255, 255, 0.02);
}

.col-figure {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.symbol-badge {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  background: rgba(255, 255, 255, 0.08);
  padding: 2px 6px;
  border-radius: 4px;
}

.val-cell-wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.val-cell-wrapper:hover {
  background: rgba(56, 189, 248, 0.12);
}

.val-cell-wrapper:hover .btn-copy-tiny {
  opacity: 1;
  color: var(--accent-cyan);
}

.ms-num {
  font-family: var(--font-mono);
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--text-main);
}

.hz-num {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-dim);
}

.col-dotted .ms-num { color: var(--accent-gold); }
.col-triplet .ms-num { color: var(--accent-purple); }

.btn-copy-tiny {
  background: transparent;
  border: none;
  color: var(--text-dim);
  cursor: pointer;
  opacity: 0.35;
  transition: opacity var(--transition-fast);
  display: flex;
  align-items: center;
}

/* ==========================================================================
   5. MÓDULOS DE REVERBERACIÓN Y COMPRESIÓN
   ========================================================================== */
.two-col-cards-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

@media (max-width: 840px) {
  .two-col-cards-grid {
    grid-template-columns: 1fr;
  }
}

.mini-cards-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.card-mini-row {
  background: var(--bg-card-solid);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  padding: 0.85rem 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.card-mini-row:hover {
  border-color: var(--accent-cyan);
  transform: translateY(-1px);
}

.card-mini-row p {
  font-size: 0.82rem;
  color: var(--text-muted);
}

.val-pill-action {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-dim);
}

.val-pill {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--accent-cyan);
}

/* ==========================================================================
   6. MÓDULO DE PRUEBA AUDITIVA CON WEB AUDIO API
   ========================================================================== */
.audition-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1.25rem;
  background: linear-gradient(135deg, rgba(15, 23, 42, 0.9), rgba(30, 41, 59, 0.8));
  border: 1px solid rgba(56, 189, 248, 0.3);
}

.audition-left {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.audition-icon-box {
  width: 48px;
  height: 48px;
  background: rgba(56, 189, 248, 0.15);
  border-radius: var(--radius-sm);
  color: var(--accent-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
}

.audition-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.btn-audition-play {
  min-height: 44px;
  padding: 0 1.5rem;
  background: var(--accent-green);
  color: #062b1e;
  border: none;
  border-radius: var(--radius-md);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-audition-play:hover {
  filter: brightness(1.1);
}

.btn-audition-play.playing {
  background: #f59e0b;
  color: #2b1702;
}

/* ==========================================================================
   7. TABLA INTERACTIVA DE NOTAS A FRECUENCIAS (HZ)
   ========================================================================== */
.freq-filter-bar {
  display: flex;
  gap: 1rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.search-input-field {
  flex: 1 1 200px;
  height: 44px;
  background: var(--bg-card-solid);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  padding: 0 1rem;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  color: var(--text-main);
}

.hz-tag {
  font-family: var(--font-mono);
  color: var(--accent-cyan);
}

.freq-zone-badge {
  font-size: 0.75rem;
  font-weight: 600;
  background: rgba(255, 255, 255, 0.06);
  padding: 3px 8px;
  border-radius: 4px;
  color: var(--text-muted);
}

.btn-tone-play {
  background: transparent;
  border: 1px solid var(--border-card);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  padding: 4px 10px;
  font-size: 0.8rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  cursor: pointer;
}

.btn-tone-play:hover {
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
}

/* ==========================================================================
   8. TOAST NOTIFICATION
   ========================================================================== */
.toast-box {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: #0f172a;
  color: #38bdf8;
  border: 1px solid #38bdf8;
  padding: 10px 20px;
  border-radius: var(--radius-pill);
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 700;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
  pointer-events: none;
  opacity: 0;
  transition: all 0.25s ease;
  z-index: 9999;
}

.toast-box.visible {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

/* ==========================================================================
   9. VISTA A4 OFICIAL EXCLUSIVA PARA IMPRESIÓN (@media print)
   ========================================================================== */
#print-sheet {
  display: none;
}

@media print {
  body {
    background: #ffffff !important;
    color: #000000 !important;
  }

  .app-header,
  .tools-ad-banner-section,
  .tool-ad-sidebar,
  .card-main,
  .fijate-footer,
  .toast-box {
    display: none !important;
  }

  #print-sheet {
    display: block !important;
    width: 100% !important;
    max-width: 210mm !important;
    margin: 0 auto !important;
    padding: 10mm !important;
    font-family: var(--font-sans) !important;
    color: #111827 !important;
  }

  .print-header {
    border-bottom: 2px solid #000;
    padding-bottom: 8px;
    margin-bottom: 16px;
  }

  .print-header h1 {
    font-family: var(--font-heading);
    font-size: 20pt;
    font-weight: 800;
    margin: 0;
  }

  .print-subtitle {
    font-size: 10pt;
    color: #4b5563;
    margin-top: 4px;
  }

  .print-section-title {
    font-family: var(--font-heading);
    font-size: 13pt;
    font-weight: 700;
    margin: 14px 0 6px;
    border-bottom: 1px solid #e2e8f0;
    padding-bottom: 4px;
  }

  .print-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 14px;
    font-size: 9.5pt;
  }

  .print-table th,
  .print-table td {
    border: 1px solid #94a3b8;
    padding: 6px 8px;
    text-align: left;
  }

  .print-table th {
    background: #f1f5f9;
    font-weight: 700;
  }

  .print-two-col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }

  .print-footer-legal {
    margin-top: 24px;
    border-top: 1px solid #cbd5e1;
    padding-top: 8px;
    font-size: 8pt;
    color: #64748b;
    text-align: center;
  }
}