/* course-filter.css — shared course filter bar (dashboard + public catalog) */

.course-filter {
    position: sticky;
    top: var(--header-height, 80px);
    z-index: var(--z-dropdown, 1100);
    background: var(--white, #fff);
    padding: var(--space-md) 0;
    margin-bottom: var(--space-lg);
}

/* Search (reuses .catalog-search / .catalog-search-input) */
.course-filter-search {
    position: relative;
    width: 100%;
    max-width: 480px;
    margin: 0 auto var(--space-lg);
}
.course-filter-search > svg {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    width: 18px;
    height: 18px;
    color: var(--gray, #8c979a);
    pointer-events: none;
    z-index: 1;
}
.course-filter-search .catalog-search-input { padding-left: 44px; }
.course-filter-search-clear {
    position: absolute;
    right: var(--space-md);
    top: 50%;
    transform: translateY(-50%);
    border: none;
    background: transparent;
    color: var(--text-secondary, #64748b);
    font-size: var(--font-size-base);
    line-height: 1;
    padding: var(--space-xs);
    cursor: pointer;
}

/* Category chips: single-row horizontal scroll, no wrap */
.course-filter-chips {
    flex-wrap: nowrap;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
    gap: var(--space-sm);
    padding-bottom: var(--space-xs);
}
.course-filter-chip-count {
    display: inline-block;
    margin-left: 4px;
    font-size: var(--font-size-xs);
    font-weight: 600;
    opacity: 0.7;
}

/* Controls row: sort / access / status */
.course-filter-controls {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
    margin-top: var(--space-sm);
}
.course-filter-control {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    font-size: var(--font-size-sm);
    color: var(--text-secondary, #64748b);
}
.course-filter-control select {
    border: 1px solid var(--border, #e5e7eb);
    border-radius: var(--radius-sm, 10px);
    padding: var(--space-xs) var(--space-sm);
    font-size: var(--font-size-sm);
    font-family: inherit;
    background: var(--white, #fff);
    color: var(--text-primary, #1e293b);
    cursor: pointer;
}

/* Results bar: count + active pills + clear */
.course-filter-results {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-sm);
    margin-top: var(--space-md);
}
.course-filter-count {
    margin: 0;
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--text-secondary, #64748b);
}
.course-filter-active {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--space-sm);
}
.course-filter-pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    border: 1px solid rgba(var(--primary-rgb, 0, 170, 255), 0.3);
    background: rgba(var(--primary-rgb, 0, 170, 255), 0.08);
    color: var(--primary-dark, #0088cc);
    border-radius: var(--radius-full, 9999px);
    padding: 4px 10px;
    font-size: var(--font-size-xs);
    font-weight: 600;
    cursor: pointer;
}
.course-filter-pill:hover { background: rgba(var(--primary-rgb, 0, 170, 255), 0.15); }
.course-filter-clear {
    border: none;
    background: transparent;
    color: var(--accent, #ff6b6b);
    font-size: var(--font-size-sm);
    font-weight: 600;
    text-decoration: underline;
    cursor: pointer;
}

/* Empty state */
.course-filter-empty {
    text-align: center;
    padding: var(--space-2xl) var(--space-md);
    color: var(--text-secondary, #64748b);
}
.course-filter-empty svg {
    width: 48px;
    height: 48px;
    opacity: 0.4;
    margin-bottom: var(--space-md);
}
.course-filter-empty p { margin-bottom: var(--space-md); }

/* Mobile: drop sticky (saves viewport), stack controls full width */
@media (max-width: 640px) {
    .course-filter { position: static; }
    .course-filter-controls { gap: var(--space-sm); }
    .course-filter-control { flex: 1 1 140px; }
    .course-filter-control select { width: 100%; }
}