/**
 * Funky.ToggleGroup Styles
 * Segmented control / button group component
 */

/* =========================================================================
   CSS Variables
   ========================================================================= */

:root {
    --toggle-group-bg: var(--pro-bg-secondary, #f5f5f5);
    --toggle-group-border: var(--pro-border-color, #ddd);
    --toggle-group-radius: var(--pro-radius, 4px);
    --toggle-group-gap: 0;

    --toggle-btn-bg: transparent;
    --toggle-btn-bg-hover: var(--pro-bg-tertiary, #e8e8e8);
    --toggle-btn-bg-active: var(--pro-primary, #007bff);
    --toggle-btn-color: var(--pro-text-secondary, #666);
    --toggle-btn-color-hover: var(--pro-text-primary, #333);
    --toggle-btn-color-active: white;

    --toggle-btn-padding-sm: 6px 12px;
    --toggle-btn-padding-md: 8px 16px;
    --toggle-btn-padding-lg: 12px 20px;

    --toggle-btn-font-size-sm: var(--pro-font-size-xs, 0.75rem);
    --toggle-btn-font-size-md: var(--pro-font-size-sm, 0.875rem);
    --toggle-btn-font-size-lg: var(--pro-font-size-base, 1rem);
}

/* =========================================================================
   Container
   ========================================================================= */

.funky-toggle-group {
    display: inline-flex;
    background: var(--toggle-group-bg);
    border: 1px solid var(--toggle-group-border);
    border-radius: var(--toggle-group-radius);
    overflow: hidden;
}

.funky-toggle-group--vertical {
    flex-direction: column;
}

.funky-toggle-group--equal {
    display: flex;
}

.funky-toggle-group--equal .funky-toggle-group__btn {
    flex: 1;
}

/* =========================================================================
   Buttons
   ========================================================================= */

.funky-toggle-group__btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;

    background: var(--toggle-btn-bg);
    color: var(--toggle-btn-color);
    border: none;
    padding: var(--toggle-btn-padding-md);
    font-size: var(--toggle-btn-font-size-md);
    font-family: inherit;
    font-weight: 500;
    cursor: pointer;
    white-space: nowrap;

    transition: background-color 0.15s ease, color 0.15s ease;
}

/* Border between buttons */
.funky-toggle-group:not(.funky-toggle-group--vertical) .funky-toggle-group__btn + .funky-toggle-group__btn {
    border-left: 1px solid var(--toggle-group-border);
}

.funky-toggle-group--vertical .funky-toggle-group__btn + .funky-toggle-group__btn {
    border-top: 1px solid var(--toggle-group-border);
}

/* States */
.funky-toggle-group__btn:hover:not(:disabled) {
    background: var(--toggle-btn-bg-hover);
    color: var(--toggle-btn-color-hover);
}

.funky-toggle-group__btn:focus-visible {
    outline: var(--focus-ring-width) var(--focus-ring-style) var(--focus-ring-color);
    outline-offset: var(--focus-ring-offset-inset);
    box-shadow: var(--focus-ring-shadow-inset);
    z-index: 1;
}

.funky-toggle-group__btn--active {
    background: var(--toggle-btn-bg-active);
    color: var(--toggle-btn-color-active);
}

.funky-toggle-group__btn--active:hover:not(:disabled) {
    background: var(--toggle-btn-bg-active);
    color: var(--toggle-btn-color-active);
    filter: brightness(1.1);
}

.funky-toggle-group__btn--disabled,
.funky-toggle-group__btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* =========================================================================
   Size Variants
   ========================================================================= */

.funky-toggle-group--sm .funky-toggle-group__btn {
    padding: var(--toggle-btn-padding-sm);
    font-size: var(--toggle-btn-font-size-sm);
}

.funky-toggle-group--lg .funky-toggle-group__btn {
    padding: var(--toggle-btn-padding-lg);
    font-size: var(--toggle-btn-font-size-lg);
}

/* =========================================================================
   Icons
   ========================================================================= */

.funky-toggle-group__btn i {
    font-size: 1em;
}

/* Icon only - square buttons */
.funky-toggle-group--icon-only .funky-toggle-group__btn {
    padding: 8px;
    aspect-ratio: 1;
}

.funky-toggle-group--icon-only.funky-toggle-group--sm .funky-toggle-group__btn {
    padding: 6px;
}

.funky-toggle-group--icon-only.funky-toggle-group--lg .funky-toggle-group__btn {
    padding: 12px;
}

/* =========================================================================
   Variant: Outline
   ========================================================================= */

.funky-toggle-group--outline {
    background: transparent;
    border: none;
    gap: 8px;
}

.funky-toggle-group--outline .funky-toggle-group__btn {
    background: transparent;
    border: 1px solid var(--toggle-group-border);
    border-radius: var(--toggle-group-radius);
}

.funky-toggle-group--outline .funky-toggle-group__btn + .funky-toggle-group__btn {
    border-left: 1px solid var(--toggle-group-border);
}

.funky-toggle-group--outline .funky-toggle-group__btn:hover:not(:disabled) {
    border-color: var(--pro-primary, #007bff);
    color: var(--pro-primary, #007bff);
}

.funky-toggle-group--outline .funky-toggle-group__btn--active {
    background: var(--toggle-btn-bg-active);
    border-color: var(--toggle-btn-bg-active);
    color: var(--toggle-btn-color-active);
}

/* =========================================================================
   Variant: Pills
   ========================================================================= */

.funky-toggle-group--pills {
    background: transparent;
    border: none;
    gap: 4px;
}

.funky-toggle-group--pills .funky-toggle-group__btn {
    border-radius: 9999px;
    padding: 6px 16px;
    background: var(--toggle-group-bg);
}

.funky-toggle-group--pills .funky-toggle-group__btn + .funky-toggle-group__btn {
    border-left: none;
}

.funky-toggle-group--pills.funky-toggle-group--sm .funky-toggle-group__btn {
    padding: 4px 12px;
}

.funky-toggle-group--pills.funky-toggle-group--lg .funky-toggle-group__btn {
    padding: 8px 20px;
}

/* =========================================================================
   Icon-Only Mode (enhanced)
   ========================================================================= */

.funky-toggle-group--icon-only .funky-toggle-group__btn {
    min-width: 36px;
    min-height: 36px;
}

.funky-toggle-group--icon-only.funky-toggle-group--sm .funky-toggle-group__btn {
    min-width: 28px;
    min-height: 28px;
}

.funky-toggle-group--icon-only.funky-toggle-group--lg .funky-toggle-group__btn {
    min-width: 44px;
    min-height: 44px;
}

/* Hide text in icon-only mode */
.funky-toggle-group--icon-only .funky-toggle-group__btn span {
    display: none;
}

/* =========================================================================
   Vertical Orientation (enhanced)
   ========================================================================= */

.funky-toggle-group--vertical {
    width: fit-content;
}

.funky-toggle-group--vertical .funky-toggle-group__btn {
    width: 100%;
    justify-content: flex-start;
}

/* Outline variant vertical */
.funky-toggle-group--vertical.funky-toggle-group--outline .funky-toggle-group__btn + .funky-toggle-group__btn {
    border-top: 1px solid var(--toggle-group-border);
    margin-top: 8px;
}

/* Pills variant vertical */
.funky-toggle-group--vertical.funky-toggle-group--pills .funky-toggle-group__btn + .funky-toggle-group__btn {
    border-top: none;
}

/* =========================================================================
   Equal Width (enhanced)
   ========================================================================= */

.funky-toggle-group--equal {
    width: 100%;
}

.funky-toggle-group--equal .funky-toggle-group__btn {
    text-align: center;
    justify-content: center;
}

.funky-toggle-group--vertical.funky-toggle-group--equal {
    width: auto;
}

.funky-toggle-group--vertical.funky-toggle-group--equal .funky-toggle-group__btn {
    flex: none;
    width: 100%;
}

/* =========================================================================
   Responsive
   ========================================================================= */

.funky-toggle-group--responsive {
    flex-wrap: wrap;
}

@media (max-width: 640px) {
    /* Stack on mobile if responsive mode enabled */
    .funky-toggle-group--responsive {
        flex-direction: column;
        width: 100%;
    }

    .funky-toggle-group--responsive .funky-toggle-group__btn {
        width: 100%;
        justify-content: center;
    }

    .funky-toggle-group--responsive .funky-toggle-group__btn + .funky-toggle-group__btn {
        border-left: none;
        border-top: 1px solid var(--toggle-group-border);
    }
}

/* =========================================================================
   Animation & Transitions
   ========================================================================= */

.funky-toggle-group__btn {
    transition:
        background-color var(--toggle-transition-duration, 150ms) var(--toggle-transition-easing, ease),
        color var(--toggle-transition-duration, 150ms) var(--toggle-transition-easing, ease),
        border-color var(--toggle-transition-duration, 150ms) var(--toggle-transition-easing, ease),
        transform var(--toggle-transition-duration, 150ms) var(--toggle-transition-easing, ease);
}

/* Active state with subtle scale */
.funky-toggle-group__btn:active:not(:disabled) {
    transform: scale(0.98);
}

/* Respect reduced motion preference */
@media (prefers-reduced-motion: reduce) {
    .funky-toggle-group__btn {
        transition: none;
    }

    .funky-toggle-group__btn:active:not(:disabled) {
        transform: none;
    }
}

/* Loading state pulse */
@keyframes toggle-pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.6; }
}

.funky-toggle-group--loading .funky-toggle-group__btn {
    animation: toggle-pulse 1.5s ease-in-out infinite;
    pointer-events: none;
}

@media (prefers-reduced-motion: reduce) {
    .funky-toggle-group--loading .funky-toggle-group__btn {
        animation: none;
        opacity: 0.6;
    }
}

/* =========================================================================
   Phase 3: Badges
   ========================================================================= */

.funky-toggle-group__badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 18px;
    height: 18px;
    padding: 0 5px;
    margin-left: 6px;
    font-size: 11px;
    font-weight: 600;
    line-height: 1;
    color: var(--pro-text-secondary, #666);
    background: var(--pro-bg-tertiary, #e8e8e8);
    border-radius: 9px;
}

/* Badge in active button */
.funky-toggle-group__btn--active .funky-toggle-group__badge {
    color: var(--toggle-btn-color-active);
    background: rgba(255, 255, 255, 0.2);
}

/* Badge variants */
.funky-toggle-group__badge--success {
    color: white;
    background: var(--pro-success, #28a745);
}

.funky-toggle-group__badge--warning {
    color: var(--pro-text-primary, #333);
    background: var(--pro-warning, #ffc107);
}

.funky-toggle-group__badge--danger {
    color: white;
    background: var(--pro-danger, #dc3545);
}

.funky-toggle-group__badge--info {
    color: white;
    background: var(--pro-info, #17a2b8);
}

/* Icon-only with badge - position as overlay */
.funky-toggle-group--icon-only .funky-toggle-group__btn {
    position: relative;
}

.funky-toggle-group--icon-only .funky-toggle-group__badge {
    position: absolute;
    top: -4px;
    right: -4px;
    margin-left: 0;
    min-width: 16px;
    height: 16px;
    font-size: 10px;
}

/* =========================================================================
   Phase 3: Separators
   ========================================================================= */

.funky-toggle-group__separator {
    display: inline-block;
    width: 1px;
    height: 20px;
    margin: 0 4px;
    background: var(--toggle-group-border);
    vertical-align: middle;
    align-self: center;
}

/* Vertical separator */
.funky-toggle-group--vertical .funky-toggle-group__separator {
    width: 100%;
    height: 1px;
    margin: 4px 0;
}

/* Separator in outline variant */
.funky-toggle-group--outline .funky-toggle-group__separator {
    background: transparent;
    margin: 0 2px;
}

/* Separator in pills variant */
.funky-toggle-group--pills .funky-toggle-group__separator {
    background: transparent;
    margin: 0;
}

/* =========================================================================
   Phase 3: Loading Skeletons
   ========================================================================= */

.funky-toggle-group__skeleton {
    display: inline-block;
    min-width: 60px;
    height: 36px;
    background: linear-gradient(
        90deg,
        var(--toggle-btn-bg, transparent) 25%,
        var(--toggle-btn-bg-hover, #e8e8e8) 50%,
        var(--toggle-btn-bg, transparent) 75%
    );
    background-size: 200% 100%;
    animation: toggle-skeleton-pulse 1.5s ease-in-out infinite;
    border-radius: var(--toggle-group-radius);
}

.funky-toggle-group__skeleton + .funky-toggle-group__skeleton {
    margin-left: 2px;
}

@keyframes toggle-skeleton-pulse {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* Size variants for skeletons */
.funky-toggle-group--sm .funky-toggle-group__skeleton {
    min-width: 50px;
    height: 28px;
}

.funky-toggle-group--lg .funky-toggle-group__skeleton {
    min-width: 80px;
    height: 44px;
}

/* Icon-only skeletons */
.funky-toggle-group--icon-only .funky-toggle-group__skeleton {
    min-width: 36px;
    aspect-ratio: 1;
}

.funky-toggle-group--icon-only.funky-toggle-group--sm .funky-toggle-group__skeleton {
    min-width: 28px;
}

.funky-toggle-group--icon-only.funky-toggle-group--lg .funky-toggle-group__skeleton {
    min-width: 44px;
}

/* Vertical skeleton layout */
.funky-toggle-group--vertical .funky-toggle-group__skeleton + .funky-toggle-group__skeleton {
    margin-left: 0;
    margin-top: 2px;
}

/* Reduced motion for skeletons */
@media (prefers-reduced-motion: reduce) {
    .funky-toggle-group__skeleton {
        animation: none;
        background: var(--toggle-btn-bg-hover, #e8e8e8);
    }
}