/* ===========================================
   Cancelled Harmonics Styles
   Project-specific styles for Cancelled Harmonics demo
   =========================================== */

/* App container */
.harmonics-app {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    width: 100%;
}

/* Controls row - side by side layout */
.controls-row {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-lg);
    align-items: stretch;
}

.playback-section,
.fundamental-section {
    flex: 1 1 200px;
    min-width: 200px;
    display: flex;
    flex-direction: column;
}

/* Reduce header spacing in controls row */
.playback-section .card-header,
.fundamental-section .card-header {
    margin-bottom: var(--spacing-xs);
}

/* Ensure both sections have consistent spacing from header to slider row */
.playback-section .playback-controls,
.fundamental-section .freq-control {
    margin-top: auto;
}

.playback-controls {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

/* Play button - extends components-audio.css .play-button */
.play-button {
    width: 48px;
    height: 48px;
}

.play-button:hover {
    transform: scale(1.05);
}

.play-button svg {
    width: 24px;
    height: 24px;
}

/* Gain control - extends components-audio.css */
.gain-control {
    flex: 1;
    justify-content: flex-end;
}

.gain-row {
    height: 28px; /* Match freq-input-group height */
}

/* Frequency control */
.freq-control {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.freq-row {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    height: 28px; /* Match gain-row height */
}

.freq-slider {
    flex: 1;
    height: 6px;
    -webkit-appearance: none;
    appearance: none;
    background: var(--color-control-bg);
    border-radius: 3px;
}

.freq-slider:focus {
    outline: none;
}

.freq-slider:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

.freq-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--color-accent);
    cursor: pointer;
    transition: transform var(--transition-fast);
}

.freq-slider::-webkit-slider-thumb:hover {
    transform: scale(1.2);
}

.freq-slider::-moz-range-thumb {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--color-accent);
    cursor: pointer;
    border: none;
}

/* Frequency input group */
.freq-input-group {
    display: flex;
    align-items: center;
    gap: 4px;
}

.freq-input {
    width: 60px;
    padding: 0.25rem 0.5rem;
    font-size: 0.75rem;
    font-family: 'SF Mono', 'Monaco', 'Inconsolata', monospace;
    background: var(--color-control-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    color: var(--color-text);
    text-align: right;
}

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

.freq-input:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

/* Hide number input spinners */
.freq-input::-webkit-outer-spin-button,
.freq-input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.freq-input[type=number] {
    -moz-appearance: textfield;
}

.freq-unit {
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

/* .card-header-inline defined in components.css */

/* Harmonics grid - 10x2 grid for 20 harmonics */
.harmonics-grid {
    display: grid;
    grid-template-columns: repeat(10, 1fr);
    gap: 4px;
}

@media (max-width: 1200px) {
    .harmonics-grid {
        grid-template-columns: repeat(10, 1fr);
    }
}

@media (max-width: 900px) {
    .harmonics-grid {
        grid-template-columns: repeat(5, 1fr);
    }
}

@media (max-width: 500px) {
    .harmonics-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* Individual harmonic button */
.harmonic-button {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1px;
    padding: 4px 2px;
    background: var(--color-control-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
    min-height: 40px;
    min-width: 0; /* Allow shrinking below content size in grid */
    overflow: hidden;
}

.harmonic-button:hover {
    border-color: var(--color-text-muted);
    background: var(--color-card-bg);
}

/* Active state - harmonic is sounding */
.harmonic-button.active {
    background: var(--color-accent-light);
    border-color: var(--color-accent);
}

.harmonic-button.active:hover {
    background: rgba(37, 99, 235, 0.2);
    border-color: var(--color-accent-hover);
}

/* Dark mode: better contrast for active harmonic buttons */
[data-theme="dark"] .harmonic-button.active {
    background: rgba(37, 99, 235, 0.35);
    border-color: #60a5fa;
}

[data-theme="dark"] .harmonic-button.active:hover {
    background: rgba(37, 99, 235, 0.45);
    border-color: #93c5fd;
}

[data-theme="dark"] .harmonic-button.active .harmonic-number {
    color: #93c5fd;
}

[data-theme="dark"] .harmonic-button.active .harmonic-freq,
[data-theme="dark"] .harmonic-button.active .harmonic-amp {
    color: #e5e7eb;
}

/* Inactive/muted state (toggled off but still available) */
.harmonic-button:not(.active):not(.unavailable) {
    opacity: 0.6;
}

.harmonic-button:not(.active):not(.unavailable):hover {
    opacity: 0.8;
}

/* Unavailable state (harmonic not present in current waveform) */
.harmonic-button.unavailable {
    opacity: 0.35;
    cursor: not-allowed;
    background: var(--color-control-bg);
    border-color: var(--color-border);
}

.harmonic-button.unavailable:hover {
    border-color: var(--color-border);
    background: var(--color-control-bg);
    transform: none;
}

.harmonic-button.unavailable .harmonic-number,
.harmonic-button.unavailable .harmonic-freq,
.harmonic-button.unavailable .harmonic-amp {
    color: var(--color-text-muted);
}

/* Harmonic button content */
.harmonic-number {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-text);
    line-height: 1;
}

.harmonic-button.active .harmonic-number {
    color: var(--color-accent);
}

.harmonic-freq {
    font-size: 0.6rem;
    color: var(--color-text-muted);
    font-family: 'SF Mono', 'Monaco', 'Inconsolata', monospace;
    line-height: 1;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 100%;
}

/* Auto Demo row below harmonics grid */
.auto-demo-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: var(--spacing-sm);
    padding-top: var(--spacing-sm);
    border-top: 1px solid var(--color-border);
}

.demo-button-group {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.demo-description {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    margin-left: var(--spacing-xs);
}

.auto-demo-description {
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

.harmonic-amp {
    font-size: 0.55rem;
    color: var(--color-text-muted);
    line-height: 1;
    white-space: nowrap;
}

/* Harmonics header actions */
.harmonics-actions {
    display: flex;
    gap: var(--spacing-xs);
    align-items: center;
}

/* Waveform section with label */
.waveform-section {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.waveform-label {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    font-weight: 500;
    display: flex;
    align-items: center;
}

/* Waveform selection buttons */
.waveform-buttons {
    display: flex;
    gap: 2px;
}

/* Small vertical divider between waveform and action buttons */
.actions-divider {
    width: 1px;
    height: 20px;
    background: var(--color-border);
    margin: 0 var(--spacing-xs);
}

.wave-button {
    padding: 0.375rem 0.5rem;
    font-size: 0.7rem;
}

.wave-button.active {
    background: var(--color-accent);
    border-color: var(--color-accent);
    color: white;
}

.wave-button.active:hover {
    background: var(--color-accent-hover);
    border-color: var(--color-accent-hover);
}

.action-button {
    padding: 0.375rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 500;
    background: var(--color-control-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    color: var(--color-text-muted);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.action-button:hover {
    background: var(--color-card-bg);
    border-color: var(--color-text-muted);
    color: var(--color-text);
}

/* Primary action button (Auto Demo) */
.action-button-primary {
    background: var(--color-accent);
    border-color: var(--color-accent);
    color: white;
}

.action-button-primary:hover {
    background: var(--color-accent-hover);
    border-color: var(--color-accent-hover);
    color: white;
}

/* Running state for Auto Demo */
.action-button-primary.running {
    background: var(--color-error);
    border-color: var(--color-error);
    color: white;
}

.action-button-primary.running:hover {
    background: #dc2626;
    border-color: #dc2626;
}

/* Secondary action button (Random Build) */
.action-button-secondary {
    background: var(--color-success);
    border-color: var(--color-success);
    color: white;
}

.action-button-secondary:hover {
    background: var(--color-success-hover);
    border-color: var(--color-success-hover);
    color: white;
}

/* Running state for Random Build */
.action-button-secondary.running {
    background: var(--color-error);
    border-color: var(--color-error);
    color: white;
}

.action-button-secondary.running:hover {
    background: #dc2626;
    border-color: #dc2626;
}

/* Disabled state for waveform buttons (during auto demo) */
.wave-button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.wave-button:disabled:hover {
    background: var(--color-control-bg);
    border-color: var(--color-border);
}

.wave-button.active:disabled:hover {
    background: var(--color-accent);
    border-color: var(--color-accent);
}

/* Dark mode: better contrast for accent-colored buttons */
[data-theme="dark"] .wave-button.active {
    background: #2563eb;
    border-color: #3b82f6;
}

[data-theme="dark"] .wave-button.active:hover {
    background: var(--color-accent-hover);
    border-color: #2563eb;
}

[data-theme="dark"] .action-button-primary {
    background: #2563eb;
    border-color: #3b82f6;
}

[data-theme="dark"] .action-button-primary:hover {
    background: var(--color-accent-hover);
    border-color: #2563eb;
}

/* Spectrogram container */
.spectrogram-container {
    position: relative;
    background: #0a0a0a;
    border-radius: var(--radius-md);
    overflow: hidden;
}

#spectrogram {
    display: block;
    width: 100%;
    height: 220px;
    background: #0a0a0a;
}

/* Frequency axis labels */
.frequency-axis {
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 50px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: var(--spacing-xs) 0;
    background: linear-gradient(90deg, rgba(0,0,0,0.8) 0%, transparent 100%);
    pointer-events: none;
}

.freq-label {
    font-size: 0.625rem;
    color: rgba(255, 255, 255, 0.7);
    font-family: 'SF Mono', 'Monaco', 'Inconsolata', monospace;
    padding-left: var(--spacing-xs);
}

/* Spectrogram controls */
.spectrogram-controls {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
}

.control-group.inline {
    flex-direction: row;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 0;
    background: transparent;
    border: none;
    min-width: auto;
}

.control-group.inline .control-label {
    margin-bottom: 0;
    font-size: 0.75rem;
}

.eq-select {
    padding: 0.25rem 0.5rem;
    font-size: 0.75rem;
    background: var(--color-control-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    color: var(--color-text);
}

.eq-select:focus {
    outline: none;
    border-color: var(--color-accent);
}

.eq-select:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

/* .section-divider defined in components-audio.css */

@media (max-width: 640px) {
    .controls-row {
        flex-direction: column;
    }
}

/* Dark mode adjustments for spectrogram */
[data-theme="dark"] .spectrogram-container {
    background: #000;
}

[data-theme="dark"] #spectrogram {
    background: #000;
}

/* Info tooltip styles now in components-audio.css */

/* Control group and label styles now in components-audio.css */

/* Background content for educational sections */
.background-content {
    line-height: 1.7;
}

.background-content p {
    margin-bottom: var(--spacing-sm);
}

.background-content p:last-child {
    margin-bottom: 0;
}

.background-content ul,
.background-content ol {
    margin-left: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
}

.background-content li {
    margin-bottom: var(--spacing-xs);
}

/* References section */
.references {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    border-top: 1px solid var(--color-border);
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-md);
}

.references h3 {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-xs);
    color: var(--color-text-muted);
}

.references ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.references li {
    margin-bottom: var(--spacing-xs);
}

/* ===========================================
   Mobile Responsive Fixes
   =========================================== */

@media (max-width: 640px) {
    /* Fix harmonics card header */
    .card-header-inline {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-sm);
    }

    /* Fix harmonics actions row */
    .harmonics-actions {
        flex-wrap: wrap;
        width: 100%;
        gap: var(--spacing-xs);
    }

    /* Stack waveform label above buttons */
    .waveform-section {
        flex-wrap: wrap;
        width: 100%;
    }

    .waveform-buttons {
        width: 100%;
        display: flex;
        flex-wrap: wrap;
    }

    /* Hide divider on mobile */
    .actions-divider {
        display: none;
    }

    /* Stack auto demo row vertically */
    .auto-demo-row {
        flex-direction: column;
        align-items: stretch;
        gap: var(--spacing-sm);
    }

    .demo-button-group {
        flex-wrap: wrap;
    }

    /* Hide demo descriptions on mobile to save space */
    .demo-description {
        display: none;
    }
}