/* ============================================================
   Audio Fingerprint Tool — Styles
   FrequencyDetector.com
   ============================================================ */

/* Recording Controls */
.recording-controls {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
}

@media (max-width: 640px) {
  .recording-controls {
    grid-template-columns: 1fr;
  }
}

.recording-slot {
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  background: rgba(0, 255, 65, 0.02);
  transition: border-color 0.2s;
}

.recording-slot.recording {
  border-color: #ff4444;
  box-shadow: 0 0 20px rgba(255, 68, 68, 0.2);
  animation: recording-pulse 1s ease-in-out infinite;
}

.recording-slot.has-data {
  border-color: var(--color-primary);
}

@keyframes recording-pulse {
  0%, 100% { box-shadow: 0 0 10px rgba(255, 68, 68, 0.15); }
  50% { box-shadow: 0 0 25px rgba(255, 68, 68, 0.3); }
}

.recording-slot__title {
  font-family: var(--font-display);
  font-size: var(--fs-md);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-sm);
}

.recording-slot__optional {
  font-family: var(--font-body);
  font-size: var(--fs-xs);
  font-weight: 400;
  color: var(--color-text-muted);
}

.recording-slot__actions {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  flex-wrap: wrap;
}

.recording-slot__or {
  font-size: var(--fs-xs);
  color: var(--color-text-muted);
}

.recording-status {
  font-family: var(--font-mono);
  font-size: var(--fs-sm);
  color: var(--color-text-muted);
  margin-top: var(--space-xs);
}

.recording-status.ready {
  color: var(--color-primary);
}

.recording-status.active {
  color: #ff4444;
}

.recording-timer {
  font-family: var(--font-mono);
  font-size: var(--fs-lg);
  font-weight: 700;
  color: #ff4444;
  margin-top: var(--space-xs);
}

/* Control Hint */
.control-hint {
  font-size: var(--fs-xs);
  color: var(--color-text-muted);
  margin-top: var(--space-xs);
}

/* Hash Display */
.hash-display {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  line-height: 1.6;
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  max-height: 200px;
  overflow-y: auto;
  word-break: break-all;
  color: var(--color-primary);
}

.hash-display__placeholder {
  color: var(--color-text-muted);
  font-style: italic;
}

.hash-display .hash-line {
  display: block;
  padding: 2px 0;
  border-bottom: 1px solid rgba(0, 255, 65, 0.06);
}

.hash-display .hash-line:last-child {
  border-bottom: none;
}

.hash-display .hash-index {
  color: var(--color-text-muted);
  margin-right: var(--space-xs);
  user-select: none;
}

/* Similarity Display */
.similarity-display {
  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);
  transition: border-color 0.3s, box-shadow 0.3s;
}

.similarity-display.has-score {
  border-color: var(--color-primary);
  box-shadow: 0 0 20px rgba(0, 255, 65, 0.15);
}

.similarity-display__value {
  font-family: var(--font-display);
  font-size: clamp(3rem, 8vw, 5rem);
  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);
}

.similarity-display__label {
  font-family: var(--font-mono);
  font-size: var(--fs-sm);
  color: var(--color-text-muted);
  margin-top: var(--space-xs);
}

.similarity-bar {
  height: 8px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 4px;
  margin-top: var(--space-sm);
  overflow: hidden;
}

.similarity-bar__fill {
  height: 100%;
  background: linear-gradient(90deg, #ff4444 0%, #ffaa00 40%, var(--color-primary) 80%);
  border-radius: 4px;
  transition: width 0.6s ease-out;
}

/* Algorithm Steps */
.algo-steps {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.algo-step {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: rgba(0, 0, 0, 0.2);
  transition: border-color 0.3s, background 0.3s, box-shadow 0.3s;
}

.algo-step.active {
  border-color: var(--color-warning, #ffaa00);
  background: rgba(255, 170, 0, 0.06);
  box-shadow: 0 0 10px rgba(255, 170, 0, 0.1);
}

.algo-step.complete {
  border-color: var(--color-primary);
  background: rgba(0, 255, 65, 0.04);
  box-shadow: 0 0 10px rgba(0, 255, 65, 0.08);
}

.algo-step__number {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  border: 2px solid var(--color-border);
  font-family: var(--font-display);
  font-size: var(--fs-sm);
  font-weight: 700;
  color: var(--color-text-muted);
  transition: border-color 0.3s, color 0.3s, background 0.3s;
}

.algo-step.active .algo-step__number {
  border-color: var(--color-warning, #ffaa00);
  color: var(--color-warning, #ffaa00);
}

.algo-step.complete .algo-step__number {
  border-color: var(--color-primary);
  color: var(--color-bg);
  background: var(--color-primary);
}

.algo-step__content {
  flex: 1;
  min-width: 0;
}

.algo-step__title {
  font-family: var(--font-display);
  font-size: var(--fs-sm);
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.2;
}

.algo-step__desc {
  font-size: var(--fs-xs);
  color: var(--color-text-muted);
  line-height: 1.4;
  margin-top: 2px;
}

.algo-step__status {
  flex-shrink: 0;
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  transition: color 0.3s;
}

.algo-step.active .algo-step__status {
  color: var(--color-warning, #ffaa00);
}

.algo-step.complete .algo-step__status {
  color: var(--color-primary);
}

/* Spectrogram + Constellation Canvases */
.viz-canvas-wrap canvas {
  width: 100%;
  height: 220px;
  border-radius: var(--radius-sm);
  background: #000;
}

.constellation-wrap canvas {
  height: 260px;
  background: #050510;
}

.viz-label {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  color: var(--color-text-muted);
  font-weight: 400;
}

/* Spectrogram Peak Dots — rendered via canvas, these are fallback overlay styles */
.peak-dot-overlay {
  position: absolute;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--color-primary);
  box-shadow: 0 0 4px var(--color-primary);
  pointer-events: none;
}

/* Export Actions */
.export-actions {
  display: flex;
  gap: var(--space-xs);
  flex-wrap: wrap;
}

/* ── Freeze Badge ── */
.freeze-badge {
    display: inline-block;
    padding: 2px 10px;
    font-family: var(--font-mono);
    font-size: var(--fs-xs);
    font-weight: 700;
    color: #00e5ff;
    background: rgba(0, 229, 255, 0.12);
    border: 1px solid #00e5ff;
    border-radius: var(--radius-full);
    letter-spacing: 0.08em;
    vertical-align: middle;
    animation: freeze-pulse 1.5s ease-in-out infinite;
}

@keyframes freeze-pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* Responsive tweaks */
@media (max-width: 768px) {
  .algo-step__desc {
    display: none;
  }

  .algo-step {
    padding: var(--space-xs) var(--space-sm);
  }

  .hash-display {
    max-height: 140px;
    font-size: 0.65rem;
  }

  .similarity-display__value {
    font-size: 3rem;
  }

  .viz-canvas-wrap canvas {
    height: 160px;
  }

  .constellation-wrap canvas {
    height: 180px;
  }
}

/* Algorithm Walkthrough */
.algo-walkthrough {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  overflow: hidden;
}

.algo-walkthrough__summary {
  padding: var(--space-md) var(--space-lg);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: var(--space-md);
  list-style: none;
}

.algo-walkthrough__summary::-webkit-details-marker {
  display: none;
}

.algo-walkthrough__hint {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  color: var(--color-text-muted);
  margin-left: auto;
}

details[open] .algo-walkthrough__hint {
  display: none;
}

.algo-walkthrough__content {
  padding: 0 var(--space-lg) var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  border-top: 1px solid var(--color-border);
  padding-top: var(--space-md);
}

.algo-walkthrough__step {
  display: flex;
  gap: var(--space-md);
  align-items: flex-start;
  padding: var(--space-sm) var(--space-md);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: rgba(0, 255, 65, 0.02);
}

.algo-walkthrough__step-number {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  border: 2px solid var(--color-primary);
  color: var(--color-primary);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--fs-sm);
}

.algo-walkthrough__step-title {
  font-family: var(--font-display);
  font-size: var(--fs-sm);
  font-weight: 700;
  color: var(--color-primary);
  margin: 0 0 4px;
}

.algo-walkthrough__step p {
  font-size: var(--fs-sm);
  color: var(--color-text-muted);
  line-height: 1.5;
  margin: 0;
}

/* Scrollbar for hash display */
.hash-display::-webkit-scrollbar {
  width: 6px;
}

.hash-display::-webkit-scrollbar-track {
  background: transparent;
}

.hash-display::-webkit-scrollbar-thumb {
  background: rgba(0, 255, 65, 0.2);
  border-radius: 3px;
}

.hash-display::-webkit-scrollbar-thumb:hover {
  background: rgba(0, 255, 65, 0.4);
}