/* Filtrační parametry — collapse/expand, scrollable, checkbox styling */

/* Hlavička filtru: klikací, se šipkou */
#filters .filter-section.filter-section-parametric > h4 {
    display: flex; align-items: center; justify-content: space-between;
    cursor: pointer; user-select: none;
    margin: 0 0 6px 0; padding: 4px 0;
    font-weight: 600;
    background: transparent; border: none;
}
#filters .filter-section.filter-section-parametric > h4::after {
    content: "▾";
    font-size: 20px;
    color: #666;
    margin-left: 6px;
    display: inline-block;
    transition: transform .2s ease;
}
#filters .filter-section.filter-section-parametric > h4[aria-expanded="false"]::after {
    content: "▸";
}
#filters .filter-section.filter-section-parametric > h4[aria-expanded="false"] + form {
    max-height: 0 !important;
    overflow: hidden;
}

/* Scrollable forma filtru */
#filters .filter-section.filter-section-parametric > form {
    max-height: 168px;
    overflow-y: auto; overflow-x: hidden;
    transition: max-height .25s ease;
    scrollbar-width: thin;
}
#filters .filter-section.filter-section-parametric > form::-webkit-scrollbar { width: 8px; }
#filters .filter-section.filter-section-parametric > form::-webkit-scrollbar-track { background: #f6f6f6; border: 1px solid #e4e4e4; }
#filters .filter-section.filter-section-parametric > form::-webkit-scrollbar-thumb { background: #e4e4e4; border-radius: 4px; }
#filters .filter-section.filter-section-parametric > form > fieldset > div {
    margin: 2px 0;
}

/* Checkbox labels */
#filters .filter-section.filter-section-parametric input[type="checkbox"] + label.filter-label {
    display: flex; align-items: center; justify-content: space-between;
    gap: 8px;
    background: #fff;
    border: 1px solid #e9e9e9;
    border-radius: 3px;
    min-height: 28px;
    line-height: 1.2;
}
#filters .filter-section.filter-section-parametric input[type="checkbox"] + label.filter-label:hover {
    background: #f7f7fb;
}
#filters .filter-section.filter-section-parametric input[type="checkbox"]:checked + label.filter-label {
    border-color: #2d4b8e;
}
#filters .filter-section.filter-section-parametric .filter-label .filter-count {
    min-width: 18px; height: 18px; padding: 0 4px;
    font-size: 11px; border-radius: 10px;
    background: #f0f0f0; color: #666;
}
#filters .filter-section input[type=checkbox] + label {
    margin-bottom: 1px;
}