/* =============================================
   DRUM NOTATION COMPONENT STYLES
   ============================================= */

.drum-notation {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: var(--space-4);
    margin: var(--space-4) 0;
}

/* Toolbar */
.drum-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
    padding-bottom: var(--space-4);
    border-bottom: 1px solid var(--border-color);
    margin-bottom: var(--space-4);
    flex-wrap: wrap;
}

.drum-presets {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.drum-preset-select {
    padding: var(--space-2) var(--space-3);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    background: var(--bg-body);
    font-size: var(--font-size-sm);
    cursor: pointer;
    min-width: 150px;
}

.drum-preset-select:focus {
    outline: none;
    border-color: var(--color-primary);
}

.drum-controls {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.drum-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    background: var(--bg-body);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.drum-btn:hover {
    background: var(--color-primary-light);
    color: var(--color-primary);
    border-color: var(--color-primary);
}

.drum-btn.active {
    background: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
}

.drum-btn-clear:hover {
    background: var(--color-danger-light);
    color: var(--color-danger);
    border-color: var(--color-danger);
}

.drum-tempo,
.drum-beats {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.drum-tempo input,
.drum-beats select {
    width: 70px;
    padding: var(--space-1) var(--space-2);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    background: var(--bg-body);
    font-size: var(--font-size-sm);
    text-align: center;
}

.drum-tempo input:focus,
.drum-beats select:focus {
    outline: none;
    border-color: var(--color-primary);
}

/* Grid Container */
.drum-grid-container {
    display: flex;
    gap: var(--space-2);
    overflow-x: auto;
    padding-bottom: var(--space-2);
}

/* Drum Labels */
.drum-labels {
    display: flex;
    flex-direction: column;
    gap: 2px;
    min-width: 80px;
    flex-shrink: 0;
}

.drum-label {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    height: 32px;
    padding: 0 var(--space-2);
    background: var(--bg-tertiary);
    border-radius: var(--border-radius-sm);
    font-size: var(--font-size-sm);
}

.drum-label-key {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 24px;
    height: 20px;
    padding: 0 var(--space-1);
    background: var(--drum-color);
    color: white;
    border-radius: var(--border-radius-sm);
    font-weight: 700;
    font-size: var(--font-size-xs);
}

.drum-label-name {
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Drum Grid */
.drum-grid {
    display: flex;
    flex-direction: column;
    gap: 2px;
    flex: 1;
}

.drum-row {
    display: grid;
    grid-template-columns: repeat(var(--beats), 32px);
    gap: 2px;
}

.drum-cell {
    width: 32px;
    height: 32px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    background: var(--bg-body);
    cursor: pointer;
    transition: all 0.1s ease;
    position: relative;
}

.drum-cell:hover {
    border-color: var(--drum-color);
    background: color-mix(in srgb, var(--drum-color) 10%, transparent);
}

.drum-cell.active {
    background: var(--drum-color);
    border-color: var(--drum-color);
    box-shadow: 0 2px 8px color-mix(in srgb, var(--drum-color) 40%, transparent);
}

.drum-cell.active::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 10px;
    height: 10px;
    background: white;
    border-radius: 50%;
    opacity: 0.8;
}

.drum-cell.downbeat {
    border-left-width: 2px;
    border-left-color: var(--text-muted);
}

.drum-cell.playing {
    animation: pulse 0.15s ease;
    box-shadow: 0 0 12px var(--drum-color);
}

@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(0.9); }
    100% { transform: scale(1); }
}

/* Beat Markers */
.drum-beat-markers {
    display: grid;
    grid-template-columns: repeat(var(--beats), 32px);
    gap: 2px;
    margin-top: var(--space-2);
}

.beat-marker {
    text-align: center;
    font-size: var(--font-size-xs);
    color: var(--text-muted);
    font-weight: 500;
}

.beat-marker.downbeat {
    color: var(--text-primary);
    font-weight: 700;
}

.beat-marker.playing {
    color: var(--color-primary);
    font-weight: 700;
}

/* Legend */
.drum-legend {
    display: flex;
    gap: var(--space-4);
    margin-top: var(--space-4);
    padding-top: var(--space-3);
    border-top: 1px solid var(--border-color);
    font-size: var(--font-size-xs);
    color: var(--text-muted);
}

.drum-legend-item::before {
    content: '•';
    margin-right: var(--space-1);
    color: var(--color-primary);
}

/* Read-only mode */
.drum-notation.readonly .drum-cell {
    cursor: default;
}

.drum-notation.readonly .drum-cell:hover {
    border-color: var(--border-color);
    background: var(--bg-body);
}

.drum-notation.readonly .drum-cell.active:hover {
    background: var(--drum-color);
    border-color: var(--drum-color);
}

/* Responsive */
@media (max-width: 820px) {
    .drum-toolbar {
        flex-direction: column;
        align-items: stretch;
    }

    .drum-presets,
    .drum-controls {
        justify-content: center;
    }

    .drum-grid-container {
        overflow-x: auto;
    }

    .drum-labels {
        min-width: 60px;
    }

    .drum-label-name {
        display: none;
    }

    .drum-cell {
        width: 28px;
        height: 28px;
    }

    .drum-row {
        grid-template-columns: repeat(var(--beats), 28px);
    }

    .drum-beat-markers {
        grid-template-columns: repeat(var(--beats), 28px);
    }
}

/* Dark mode adjustments */
[data-theme="dark"] .drum-cell.active::after {
    background: rgba(255, 255, 255, 0.9);
}