/**
 * Filter Bar — Block CSS
 *
 * Horizontal filter chips for the cas-usage page.
 * Two filter groups (Enjeux, Leviers) with pill-shaped buttons.
 * Active state uses vert-fonce background.
 */

/* Section — less vertical padding, no bottom padding (grid follows directly) */
.block--filter-bar {
    padding: var(--space-xl) 0 0;
}

/* Filter bar layout */
.filter-bar {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

/* Each filter group */
.filter-bar__group {
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
}

/* Group label */
.filter-bar__label {
    flex-shrink: 0;
    font-weight: 700;
    font-size: var(--font-size-small);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--color-dark);
    padding-top: 0.5rem;
    min-width: 80px;
}

/* Chips container */
.filter-bar__chips {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
}

/* Individual chip */
.filter-chip {
    display: inline-flex;
    align-items: center;
    padding: 0.5rem 1rem;
    border: 1.5px solid var(--color-teal);
    border-radius: 50px;
    background: transparent;
    color: var(--color-teal);
    font-family: inherit;
    font-size: var(--font-size-small);
    font-weight: 600;
    cursor: pointer;
    white-space: nowrap;
    transition: background-color 0.2s, color 0.2s, border-color 0.2s;
}

.filter-chip:hover {
    background-color: rgba(18, 64, 20, 0.08);
}

.filter-chip:focus-visible {
    outline: 2px solid var(--color-teal);
    outline-offset: 2px;
}

/* Active chip */
.filter-chip.is-active {
    background-color: var(--color-teal);
    color: var(--color-white);
    border-color: var(--color-teal);
}

.filter-chip.is-active:hover {
    background-color: #0d2e0f;
    border-color: #0d2e0f;
}

/* =============================================================================
   Grid item visibility (applied to the filterable grid below)
   ============================================================================= */
.filterable-grid-item {
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.filterable-grid-item.is-hidden {
    display: none;
}

/* Optional fade-in animation for revealed items */
.filterable-grid-item.is-visible {
    animation: filterFadeIn 0.3s ease;
}

@keyframes filterFadeIn {
    from {
        opacity: 0;
        transform: translateY(8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* No results message */
.filter-bar__no-results {
    display: none;
    text-align: center;
    padding: var(--space-2xl) var(--space-lg);
    color: var(--color-dark);
    font-size: var(--font-size-body);
    opacity: .6;
}

/* =============================================================================
   Responsive
   ============================================================================= */
@media (max-width: 768px) {
    .filter-bar__group {
        flex-direction: column;
        gap: var(--space-sm);
    }

    .filter-bar__label {
        padding-top: 0;
        min-width: auto;
    }

    .filter-bar__chips {
        gap: var(--space-xs);
    }

    .filter-chip {
        padding: 0.375rem 0.75rem;
        font-size: 13px;
    }
}