/* ============================================================
   Multi-Tone Frequency Detector — Styles
   FrequencyDetector.com
   ============================================================ */

/* Tone Count Display */
.tone-count-wrap {
  text-align: center;
  padding: var(--space-lg) var(--space-md);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: rgba(0, 255, 65, 0.02);
}

.tone-count__label {
  font-family: var(--font-display);
  font-size: var(--fs-sm);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.3em;
}

.tone-count__value {
  font-family: var(--font-display);
  font-size: clamp(4rem, 12vw, 8rem);
  font-weight: 900;
  color: var(--color-primary);
  line-height: 1;
  letter-spacing: -0.02em;
  text-shadow: 0 0 20px rgba(0, 255, 65, 0.4);
}

/* Detected Tones List */
.detected-tones-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-sm);
  background: var(--color-surface);
  max-height: 300px;
  overflow-y: auto;
}

.tones-placeholder,
.intervals-placeholder {
  text-align: center;
  color: var(--color-text-muted);
  font-size: var(--fs-sm);
  padding: var(--space-md);
}

.tone-item {
  display: grid;
  grid-template-columns: 90px 60px 1fr 50px;
  align-items: center;
  gap: var(--space-xs);
  padding: 6px var(--space-xs);
  border-radius: var(--radius-sm);
  background: rgba(0, 255, 65, 0.03);
  border: 1px solid rgba(0, 255, 65, 0.08);
}

.tone-item:first-child {
  border-color: var(--color-primary);
  background: rgba(0, 255, 65, 0.06);
}

.tone-item__freq {
  font-family: var(--font-mono);
  font-size: var(--fs-sm);
  color: var(--color-primary);
  font-weight: 700;
}

.tone-item__note {
  font-family: var(--font-mono);
  font-size: var(--fs-sm);
  color: var(--color-secondary);
}

.tone-item__bar-wrap {
  position: relative;
  height: 14px;
  background: rgba(0, 255, 65, 0.08);
  border-radius: 2px;
  overflow: hidden;
}

.tone-item__bar {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  background: var(--color-primary);
  border-radius: 2px;
  opacity: 0.6;
  transition: width 0.1s;
}

.tone-item__db {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--color-text-muted);
  text-align: right;
}

/* DTMF Output Card */
.dtmf-output-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-sm);
  background: var(--color-surface);
}

/* DTMF Keypad Visualization */
.dtmf-keypad {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 4px;
  margin-bottom: var(--space-sm);
}

.dtmf-key {
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: var(--fs-sm);
  font-weight: 700;
  color: var(--color-text-muted);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 8px 0;
  transition: background 0.15s, color 0.15s, border-color 0.15s, box-shadow 0.15s;
}

.dtmf-key--active {
  color: var(--color-bg);
  background: var(--color-primary);
  border-color: var(--color-primary);
  box-shadow: 0 0 12px rgba(0, 255, 65, 0.5);
}

.dtmf-decoded-string {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  padding-top: var(--space-xs);
  border-top: 1px solid var(--color-border);
}

.dtmf-decoded__label {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  color: var(--color-text-muted);
  flex-shrink: 0;
}

.dtmf-decoded__value {
  font-family: var(--font-mono);
  font-size: var(--fs-md);
  color: var(--color-primary);
  font-weight: 700;
  letter-spacing: 0.15em;
  flex: 1;
  overflow-x: auto;
  white-space: nowrap;
}

/* Chord Display Card */
.chord-display-card {
  text-align: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  background: var(--color-surface);
  min-height: 90px;
}

.chord-display-card--match {
  border-color: var(--color-primary);
  background: rgba(0, 255, 65, 0.05);
}

.chord-display__name {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 5vw, 3rem);
  font-weight: 900;
  color: var(--color-primary);
  line-height: 1.1;
  text-shadow: 0 0 12px rgba(0, 255, 65, 0.3);
}

.chord-display__notes {
  font-family: var(--font-mono);
  font-size: var(--fs-sm);
  color: var(--color-text-muted);
  margin-top: 4px;
}

.chord-display__quality {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  color: var(--color-secondary);
  margin-top: 4px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

/* Musical Intervals List */
.intervals-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-sm);
  background: var(--color-surface);
  max-height: 200px;
  overflow-y: auto;
}

.interval-item {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto;
  align-items: center;
  gap: var(--space-xs);
  padding: 4px var(--space-xs);
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  border-radius: var(--radius-sm);
  background: rgba(0, 255, 65, 0.03);
}

.interval-item__note {
  color: var(--color-secondary);
  font-weight: 600;
}

.interval-item__arrow {
  color: var(--color-text-muted);
}

.interval-item__name {
  color: var(--color-primary);
  font-weight: 700;
  text-align: right;
}

/* Toggle Switch (mode) */
.toggle-switch {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  cursor: pointer;
}

.toggle-switch__slider {
  position: relative;
  width: 44px;
  height: 24px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  transition: background 0.2s;
}

.toggle-switch__slider::after {
  content: '';
  position: absolute;
  top: 2px;
  left: 2px;
  width: 18px;
  height: 18px;
  background: var(--color-text-muted);
  border-radius: 50%;
  transition: transform 0.2s, background 0.2s;
}

.toggle-switch input:checked + .toggle-switch__slider {
  background: rgba(0, 255, 65, 0.2);
  border-color: var(--color-primary);
}

.toggle-switch input:checked + .toggle-switch__slider::after {
  transform: translateX(20px);
  background: var(--color-primary);
}

.toggle-switch input { display: none; }

.toggle-switch__label {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  color: var(--color-text-muted);
}

/* File upload button */
.file-upload-btn {
  cursor: pointer;
}

/* Canvas wraps */
.viz-canvas-wrap {
  position: relative;
  width: 100%;
  height: 140px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--color-bg);
}

.viz-canvas-wrap--tall {
  height: 200px;
}

.viz-canvas-wrap canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

/* Controls Grid */
.controls-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-sm);
}

.control-group {
  display: flex;
  flex-direction: column;
}

.control-group__label {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 4px;
}

.control-group__value {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  color: var(--color-primary);
}

.control-row {
  display: flex;
  align-items: center;
}

/* History Table */
.history-wrap {
  max-height: 200px;
  overflow-y: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.history-table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
}

.history-table thead {
  position: sticky;
  top: 0;
  background: var(--color-surface);
  z-index: 1;
}

.history-table th {
  text-align: left;
  padding: var(--space-xs) var(--space-sm);
  color: var(--color-text-muted);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-bottom: 1px solid var(--color-border);
}

.history-table td {
  padding: var(--space-xs) var(--space-sm);
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  color: var(--color-text);
}

.history-table tr:hover td {
  background: rgba(0, 255, 65, 0.04);
}

/* Export Actions */
.export-actions {
  display: flex;
  gap: var(--space-sm);
  margin-top: var(--space-sm);
}

/* Small button variant */
.btn--sm {
  padding: 6px 12px;
  font-size: var(--fs-xs);
}

/* Badge-log (LOG indicator) */
.badge-log {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.6rem;
  color: var(--color-secondary);
  border: 1px solid rgba(0, 229, 255, 0.3);
  border-radius: var(--radius-sm);
  padding: 1px 6px;
  margin-left: var(--space-xs);
  vertical-align: middle;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Badge Freeze */
.badge-freeze {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  color: var(--color-secondary);
  background: rgba(0, 229, 255, 0.1);
  border: 1px solid rgba(0, 229, 255, 0.4);
  border-radius: var(--radius-sm);
  padding: 4px 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
  animation: freezePulse 1.5s ease-in-out infinite;
}

@keyframes freezePulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

/* Clickable tone items */
.tone-item--clickable {
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
}

.tone-item--clickable:hover {
  background: rgba(0, 255, 65, 0.1);
  border-color: var(--color-primary);
}

/* Responsive */
@media (max-width: 768px) {
  .tone-count__value {
    font-size: 4rem;
  }

  .tone-item {
    grid-template-columns: 75px 50px 1fr 40px;
  }

  .dtmf-keypad {
    gap: 3px;
  }

  .dtmf-key {
    padding: 6px 0;
    font-size: var(--fs-xs);
  }

  .chord-display__name {
    font-size: 1.8rem;
  }

  .interval-item {
    grid-template-columns: 1fr auto 1fr auto;
    font-size: 10px;
  }

  .controls-grid {
    grid-template-columns: 1fr;
  }
}