.at-tools-directory-controls {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 18px;
    margin-bottom: 28px;
}

.at-tools-search {
    position: relative;
    width: 100%;
    max-width: 520px;
}

.at-tools-search-icon {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted, var(--text-secondary, rgba(146, 150, 184, 0.8)));
    pointer-events: none;
}

.at-tools-search-input {
    width: 100%;
    box-sizing: border-box;
    padding: 13px 18px 13px 46px;
    border-radius: var(--radius-pill, 999px);
    border: 1px solid var(--border-subtle, rgba(146, 150, 184, 0.18));
    background: var(--surface-card, rgba(33, 35, 47, 0.65));
    color: var(--text-primary, #f4f5fb);
    font-size: 0.95rem;
    box-shadow: var(--at-card-shadow, 0 2px 10px rgba(0, 0, 0, 0.2));
}

.at-tools-search-input::placeholder {
    color: var(--text-muted, var(--text-secondary, rgba(146, 150, 184, 0.7)));
}

.at-tools-search-input:focus {
    outline: none;
    box-shadow: 0 0 0 2px var(--cyan-bright, #22d3ee);
}

.at-tools-filters {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px;
    max-width: 100%;
}

.at-tools-filter-btn {
    flex-shrink: 0;
    padding: 8px 18px;
    border: 1px solid var(--border-subtle, rgba(146, 150, 184, 0.2));
    border-radius: var(--radius-pill, 999px);
    background: var(--surface-card, rgba(33, 35, 47, 0.5));
    color: var(--text-secondary, #cfd0e0);
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.at-tools-filter-btn:hover {
    border-color: var(--cyan-bright, #22d3ee);
    color: var(--text-primary, #f4f5fb);
}

.at-tools-filter-btn.is-active {
    background: var(--cyan-bright, #22d3ee);
    border-color: var(--cyan-bright, #22d3ee);
    color: #0b1220;
}

.at-tools-card--hidden {
    display: none;
}

.at-tools-empty-state {
    text-align: center;
    padding: 40px 16px;
    color: var(--text-muted, var(--text-secondary, rgba(146, 150, 184, 0.8)));
    font-size: 0.95rem;
}

@media (min-width: 700px) {
    .at-tools-directory-controls {
        flex-direction: row;
        justify-content: center;
        align-items: center;
    }

    .at-tools-search {
        max-width: 340px;
    }
}