/* ===========================================
   EQ Matching Ear Training Game Styles
   =========================================== */

/* Layout */
.eq-game-layout {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

/* EQ Canvas Card */
.eq-canvas-card {
    grid-column: 1;
    grid-row: 1 / 3;
    display: flex;
    flex-direction: column;
}

.eq-canvas-card .card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-sm);
}

.eq-mode-indicator {
    padding: 0.25rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-radius: var(--radius-sm);
    background: var(--color-accent-light);
    color: var(--color-accent);
}

.eq-mode-indicator.target {
    background: rgba(34, 197, 94, 0.15);
    color: #16a34a;
}

.eq-mode-indicator.bypass {
    background: rgba(156, 163, 175, 0.2);
    color: var(--color-text-muted);
}

[data-theme="dark"] .eq-mode-indicator.target {
    background: rgba(34, 197, 94, 0.25);
    color: #4ade80;
}

/* Canvas Container */
.eq-canvas-container {
    position: relative;
    flex: 1;
    min-height: 350px;
}

#eq-canvas {
    width: 100%;
    height: 100%;
    background: var(--color-card-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    cursor: crosshair;
}

/* EQ Readout (shows params on hover/drag) */
.eq-readout {
    position: absolute;
    bottom: var(--spacing-sm);
    left: var(--spacing-sm);
    padding: 0.375rem 0.625rem;
    font-size: 0.75rem;
    font-family: 'SF Mono', Monaco, monospace;
    background: rgba(0, 0, 0, 0.7);
    color: white;
    border-radius: var(--radius-sm);
    opacity: 0;
    transition: opacity var(--transition-fast);
    pointer-events: none;
}

.eq-readout.visible {
    opacity: 1;
}

/* Controls Card */
.controls-card {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.control-section {
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--color-border);
}

.control-section:last-child {
    padding-bottom: 0;
    border-bottom: none;
}

.control-section h3 {
    margin: 0 0 var(--spacing-sm) 0;
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Source and Mode Buttons */
.source-buttons,
.mode-buttons {
    display: flex;
    gap: var(--spacing-xs);
    flex-wrap: wrap;
}

.source-buttons button,
.mode-buttons button {
    flex: 1;
    min-width: 80px;
    padding: 0.5rem 0.75rem;
    font-size: 0.8125rem;
    font-weight: 500;
    background: var(--color-control-bg);
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-sm);
    color: var(--color-text);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.source-buttons button:hover,
.mode-buttons button:hover {
    border-color: var(--color-text-muted);
}

.source-buttons button.active,
.mode-buttons button.active {
    background: var(--color-accent);
    border-color: var(--color-accent);
    color: white;
}

.mode-buttons button[data-mode="target"].active {
    background: #16a34a;
    border-color: #16a34a;
}

.mode-buttons button[data-mode="bypass"].active {
    background: var(--color-text-muted);
    border-color: var(--color-text-muted);
}

/* Dark mode button overrides handled by components-audio.css, only target button needs local override */
[data-theme="dark"] .mode-buttons button[data-mode="target"].active {
    background: #22c55e;
    border-color: #22c55e;
}

/* Upload Area */
.upload-area {
    position: relative;
    margin-top: var(--spacing-sm);
    padding: var(--spacing-md);
    border: 2px dashed var(--color-border);
    border-radius: var(--radius-md);
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.upload-area:hover {
    border-color: var(--color-accent);
    background: var(--color-accent-light);
}

.upload-area.drag-over {
    border-color: var(--color-accent);
    background: var(--color-accent-light);
}

.upload-label {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    cursor: pointer;
}

.upload-label svg {
    opacity: 0.5;
}

.upload-label span {
    font-size: 0.8125rem;
    color: var(--color-text-muted);
}

.file-info {
    margin-top: var(--spacing-sm);
    padding: var(--spacing-sm);
    background: var(--color-control-bg);
    border-radius: var(--radius-sm);
    font-size: 0.8125rem;
}

.file-name {
    font-weight: 500;
    color: var(--color-text);
}

.file-duration {
    color: var(--color-text-muted);
    margin-left: var(--spacing-xs);
}

/* Gain Control */
.gain-control {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.gain-control input[type="range"] {
    flex: 1;
    height: 6px;
    -webkit-appearance: none;
    appearance: none;
    background: var(--color-border);
    border-radius: 3px;
    cursor: pointer;
}

.gain-control input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 16px;
    height: 16px;
    background: var(--color-accent);
    border: 2px solid white;
    border-radius: 50%;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
    cursor: pointer;
}

.gain-control input[type="range"]::-moz-range-thumb {
    width: 16px;
    height: 16px;
    background: var(--color-accent);
    border: 2px solid white;
    border-radius: 50%;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
    cursor: pointer;
}

#gain-display {
    min-width: 50px;
    font-size: 0.8125rem;
    font-family: 'SF Mono', Monaco, monospace;
    color: var(--color-text-muted);
    text-align: right;
}

/* Game Actions */
.game-actions {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.action-button {
    padding: 0.625rem 1rem;
    font-size: 0.875rem;
    font-weight: 600;
    background: var(--color-control-bg);
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text);
    cursor: pointer;
    transition: all var(--transition-fast);
}

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

.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);
}

.action-button.secondary {
    background: transparent;
    color: var(--color-text-muted);
}

.action-button.secondary:hover {
    color: var(--color-text);
}

.action-button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Score Card */
.score-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
}

.score-display,
.streak-display {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
}

.score-label,
.streak-label {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-muted);
}

.score-value {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-text);
    line-height: 1;
}

.score-value.excellent {
    color: #16a34a;
}

.score-value.good {
    color: var(--color-accent);
}

.score-value.fair {
    color: #f59e0b;
}

.score-value.poor {
    color: #ef4444;
}

.streak-value {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-accent);
}

.result-message {
    text-align: center;
    font-size: 0.875rem;
    color: var(--color-text-muted);
    padding: var(--spacing-sm);
    background: var(--color-control-bg);
    border-radius: var(--radius-sm);
}

/* Band Controls Card */
.band-controls-card {
    margin-bottom: var(--spacing-lg);
}

.band-controls-card .card-title {
    margin-bottom: var(--spacing-md);
}

.bands-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-md);
}

.band-control {
    padding: var(--spacing-sm);
    background: var(--color-control-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
}

.band-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-sm);
    padding-bottom: var(--spacing-xs);
    border-bottom: 1px solid var(--color-border);
}

.band-label {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text);
}

.band-label.band-1 { color: #ef4444; }
.band-label.band-2 { color: #f59e0b; }
.band-label.band-3 { color: #22c55e; }
.band-label.band-4 { color: #3b82f6; }

.filter-type {
    font-size: 0.6875rem;
    color: var(--color-text-muted);
}

.filter-type-select {
    padding: 0.125rem 0.375rem;
    font-size: 0.6875rem;
    background: var(--color-card-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    color: var(--color-text);
    cursor: pointer;
}

.band-params {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.band-params label {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

.band-params input[type="number"] {
    width: 60px;
    padding: 0.25rem 0.375rem;
    font-size: 0.75rem;
    font-family: 'SF Mono', Monaco, monospace;
    background: var(--color-card-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    color: var(--color-text);
    text-align: right;
}

.band-params input[type="number"]:focus {
    outline: none;
    border-color: var(--color-accent);
}

.band-params input[type="number"]:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

/* .hidden utility defined in base.css */

/* Responsive */
@media (max-width: 1024px) {
    .eq-game-layout {
        grid-template-columns: 1fr;
    }

    .eq-canvas-card {
        grid-column: 1;
        grid-row: auto;
    }

    .eq-canvas-container {
        min-height: 300px;
    }

    .bands-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

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

    .source-buttons,
    .mode-buttons {
        flex-direction: column;
    }

    .source-buttons button,
    .mode-buttons button {
        min-width: unset;
    }

    .score-value {
        font-size: 2rem;
    }
}

/* Dark mode adjustments */
[data-theme="dark"] .band-control {
    background: rgba(255, 255, 255, 0.03);
}

[data-theme="dark"] .upload-area:hover,
[data-theme="dark"] .upload-area.drag-over {
    background: rgba(37, 99, 235, 0.1);
}

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

/* Canvas colors for reference (used in JS) */
/*
 * Grid: rgba(0,0,0,0.1) / rgba(255,255,255,0.1)
 * User curve: #2563eb (accent)
 * Target curve: #16a34a (green)
 * Control points:
 *   Band 1 (HPF/LSF): #ef4444 (red)
 *   Band 2 (Peak): #f59e0b (amber)
 *   Band 3 (Peak): #22c55e (green)
 *   Band 4 (LPF/HSF): #3b82f6 (blue)
 * Spectrum: gradient from bottom
 */