/*
Course Filters - Filter buttons for courses section
Allows filtering by learner level and marketing area
*/

/* ========== FILTER CONTAINER ========== */
.course-filters {
    margin-bottom: var(--space-3xl);
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
    position: relative;
    z-index: 10; /* Ensure filters stay above floating images */
}

/* Filter group (one row of filters) */
.filter-group {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    flex-wrap: wrap;
}

/* Filter label */
.filter-label {
    font-family: var(--font-body);
    font-weight: var(--font-bold);
    font-size: var(--text-sm);
    text-transform: uppercase;
    color: var(--foreground);
    margin-right: var(--space-sm);
    white-space: nowrap;
}

/* ========== FILTER BUTTONS ========== */
.filter-btn {
    font-family: var(--font-body);
    font-size: var(--text-sm);
    font-weight: var(--font-bold);
    padding: var(--space-sm) var(--space-lg);
    border-radius: var(--radius-full);
    border: none;
    background-color: var(--card);
    color: var(--foreground);
    cursor: pointer;
    transition: all var(--transition-base);
    white-space: nowrap;
}

/* Hover state */
.filter-btn:hover {
    background-color: var(--muted);
    transform: translateY(-2px);
}

/* Active/selected state */
.filter-btn.active {
    background-color: var(--primary);
    color: var(--primary-foreground);
}

/* Focus state for keyboard navigation */
.filter-btn:focus-visible {
    outline: 3px solid var(--primary);
    outline-offset: 2px;
}

/* ========== RESPONSIVE DESIGN ========== */

/* Tablet and below */
@media (max-width: 768px) {
    .filter-group {
        gap: var(--space-xs);
    }
    
    .filter-btn {
        font-size: var(--text-xs);
        padding: var(--space-xs) var(--space-md);
    }
    
    .filter-label {
        font-size: var(--text-xs);
        width: 100%;
        margin-bottom: var(--space-xs);
    }
}

/* Mobile only */
@media (max-width: 640px) {
    .course-filters {
        gap: var(--space-md);
    }
}