/* Keyboard Navigation Styles */

/* Keyboard shortcuts help modal */
.keyboard-help-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: var(--z-modal, 500);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-base, 200ms ease), visibility var(--transition-base, 200ms ease);
}

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

.keyboard-help-modal {
    background: var(--color-white, #ffffff);
    border-radius: var(--radius-xl, 16px);
    padding: 24px 32px;
    max-width: 400px;
    width: 90%;
    max-height: 80vh;
    overflow-y: auto;
    box-shadow: var(--shadow-xl, 0 8px 32px rgba(0, 0, 0, 0.12));
    transform: scale(0.95);
    transition: transform var(--transition-base, 200ms ease);
}

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

.keyboard-help-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--color-border, #e9ecef);
}

.keyboard-help-title {
    font-size: var(--font-size-lg, 1.25rem);
    font-weight: var(--font-weight-bold, 700);
    color: var(--color-text-primary, #333);
    margin: 0;
    display: flex;
    align-items: center;
    gap: 8px;
}

.keyboard-help-title svg {
    width: 20px;
    height: 20px;
    color: var(--color-primary, #0073ea);
}

.keyboard-help-close {
    width: 32px;
    height: 32px;
    padding: 0;
    background: transparent;
    border: none;
    cursor: pointer;
    color: var(--color-text-muted, #999);
    border-radius: var(--radius-md, 8px);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background var(--transition-fast, 150ms ease), color var(--transition-fast, 150ms ease);
}

.keyboard-help-close:hover {
    background: var(--color-gray-100, #f8f9fa);
    color: var(--color-text-primary, #333);
}

.keyboard-help-close svg {
    width: 20px;
    height: 20px;
}

/* Shortcut list */
.keyboard-shortcuts-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.keyboard-shortcut {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 0;
}

.keyboard-shortcut-keys {
    display: flex;
    gap: 6px;
    align-items: center;
}

.keyboard-key {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 28px;
    height: 28px;
    padding: 0 8px;
    background: var(--color-gray-100, #f8f9fa);
    border: 1px solid var(--color-border, #e9ecef);
    border-radius: var(--radius-sm, 4px);
    font-family: var(--font-mono, monospace);
    font-size: var(--font-size-sm, 0.9rem);
    font-weight: var(--font-weight-medium, 500);
    color: var(--color-text-primary, #333);
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

.keyboard-shortcut-or {
    font-size: var(--font-size-xs, 0.8rem);
    color: var(--color-text-muted, #999);
}

.keyboard-shortcut-action {
    font-size: var(--font-size-sm, 0.9rem);
    color: var(--color-text-secondary, #666);
}

/* Section divider */
.keyboard-shortcuts-section {
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--color-border, #e9ecef);
}

.keyboard-shortcuts-section-title {
    font-size: var(--font-size-xs, 0.8rem);
    font-weight: var(--font-weight-semibold, 600);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--color-text-muted, #999);
    margin: 0 0 12px 0;
}

/* Footer hint */
.keyboard-help-footer {
    margin-top: 20px;
    padding-top: 16px;
    border-top: 1px solid var(--color-border, #e9ecef);
    text-align: center;
    font-size: var(--font-size-xs, 0.8rem);
    color: var(--color-text-muted, #999);
}

/* Keyboard hint badge in UI */
.keyboard-hint {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 2px 6px;
    background: var(--color-gray-100, #f8f9fa);
    border: 1px solid var(--color-border, #e9ecef);
    border-radius: var(--radius-sm, 4px);
    font-family: var(--font-mono, monospace);
    font-size: var(--font-size-xs, 0.75rem);
    color: var(--color-text-muted, #999);
    margin-left: 8px;
}

/* Action feedback toast */
.keyboard-action-toast {
    position: fixed;
    bottom: 80px;
    left: 50%;
    transform: translateX(-50%) translateY(20px);
    background: var(--color-text-primary, #333);
    color: var(--color-white, #ffffff);
    padding: 12px 20px;
    border-radius: var(--radius-full, 9999px);
    font-size: var(--font-size-sm, 0.9rem);
    font-weight: var(--font-weight-medium, 500);
    z-index: var(--z-toast, 700);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base, 200ms ease);
    display: flex;
    align-items: center;
    gap: 8px;
    box-shadow: var(--shadow-lg, 0 4px 16px rgba(0, 0, 0, 0.2));
}

.keyboard-action-toast.visible {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.keyboard-action-toast svg {
    width: 16px;
    height: 16px;
}

/* Hide keyboard hints on touch devices */
@media (hover: none) {
    .keyboard-hint {
        display: none;
    }
}

/* Responsive adjustments */
@media (max-width: 480px) {
    .keyboard-help-modal {
        padding: 20px;
    }

    .keyboard-shortcut {
        flex-direction: column;
        align-items: flex-start;
        gap: 4px;
    }

    .keyboard-shortcut-action {
        font-size: var(--font-size-xs, 0.8rem);
    }
}