.filter-group--advanced {
    position: relative;
    z-index: 1;
    flex: 0 0 190px;
    min-width: 170px;
}

.filter-group--advanced[open] {
    z-index: 30;
}

.filter-group--advanced:not([open]) > .advanced-filters__panel {
    display: none;
}

.advanced-filters__summary {
    min-height: 42px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    padding: 10px 13px;
    border: 1px solid var(--border-color, #dbe5ec);
    border-radius: 12px;
    background: #fff;
    color: var(--text-primary, #1e293b);
    font-size: 0.88rem;
    font-weight: 700;
    cursor: pointer;
    list-style: none;
    transition: border-color 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
}

.advanced-filters__summary::-webkit-details-marker {
    display: none;
}

.advanced-filters__summary:hover,
.filter-group--advanced[open] > .advanced-filters__summary {
    border-color: rgba(47, 140, 153, 0.42);
    background: #f7fcfc;
    box-shadow: 0 0 0 3px rgba(47, 140, 153, 0.08);
}

.advanced-filters__summary-main {
    min-width: 0;
    display: inline-flex;
    align-items: center;
    gap: 9px;
}

.advanced-filters__summary-main > i {
    color: #438d98;
}

.advanced-filters__count {
    min-width: 22px;
    height: 22px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0 6px;
    border-radius: 999px;
    background: #e6f4f5;
    color: #286f79;
    font-size: 0.72rem;
    font-weight: 800;
}

.advanced-filters__chevron {
    color: #718096;
    font-size: 0.72rem;
    transition: transform 0.18s ease;
}

.filter-group--advanced[open] .advanced-filters__chevron {
    transform: rotate(180deg);
}

.advanced-filters__panel {
    position: absolute;
    top: calc(100% + 10px);
    right: 0;
    z-index: 31;
    width: min(820px, calc(100vw - 48px));
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    align-items: end;
    gap: 16px;
    padding: 20px;
    border: 1px solid rgba(198, 215, 225, 0.9);
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 20px 55px rgba(25, 48, 61, 0.2);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
}

.advanced-filters__panel > .filter-group,
.advanced-filters__panel > .filter-group--rooms,
.advanced-filters__panel > .filter-group--sqm,
.advanced-filters__panel > .filter-group--sort {
    width: 100%;
    min-width: 0;
    flex: 1 1 auto;
}

.advanced-filters__panel .rooms-dropdown .portal-dropdown__menu,
.advanced-filters__panel .sqm-dropdown .portal-dropdown__menu {
    right: 0;
    left: auto;
}

.advanced-filters__summary:focus-visible {
    outline: 3px solid rgba(47, 140, 153, 0.28);
    outline-offset: 2px;
}

@media (max-width: 768px) {
    .filter-group--advanced {
        width: 100%;
        min-width: 0;
        flex: 1 1 100%;
    }

    .advanced-filters__panel {
        position: static;
        width: 100%;
        max-height: min(62vh, 520px);
        overflow-y: auto;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 14px 12px;
        margin-top: 9px;
        padding: 16px;
        box-shadow: 0 10px 28px rgba(25, 48, 61, 0.1);
    }
}

@media (max-width: 430px) {
    .advanced-filters__panel {
        grid-template-columns: minmax(0, 1fr);
    }
}