/**
 * Keyboard Shortcuts Help Modal
 */

.keyboard-help-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: var(--z-modal);
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.keyboard-help-overlay.visible {
    opacity: 1;
}

.keyboard-help-modal {
    background: var(--color-bg-white);
    border: 1px solid var(--color-border-medium);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    min-width: 320px;
    max-width: 400px;
    transform: scale(0.95);
    transition: transform var(--transition-fast);
}

.keyboard-help-overlay.visible .keyboard-help-modal {
    transform: scale(1);
}

.keyboard-help-modal h3 {
    margin: 0 0 var(--spacing-xl) 0;
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-primary);
}

.keyboard-help-section {
    margin-bottom: var(--spacing-lg);
}

.keyboard-help-section:last-child {
    margin-bottom: 0;
}

.keyboard-help-section h4 {
    margin: 0 0 var(--spacing-sm) 0;
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.keyboard-help-row {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) 0;
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.keyboard-help-row span {
    margin-left: auto;
    color: var(--color-text-muted);
}

.keyboard-help-modal kbd {
    display: inline-block;
    min-width: 24px;
    padding: 2px 6px;
    font-family: var(--font-family-base);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-medium);
    text-align: center;
    color: var(--color-text-primary);
    background: var(--color-bg-light);
    border: 1px solid var(--color-border-medium);
    border-radius: var(--radius-sm);
}