.filter-section {
    display: flex;
    flex-direction: column;
    gap: 20px;
    justify-content: center;
    align-items: center;
}
.filter-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 15px 25px;
    position: relative;
    margin-bottom: 20px;
}
.filter-button {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    background-color: #4a4a64;
    color: var(--primary-text-color);
    border: 1px solid #5f5f7b;
    border-radius: 6px;
    padding: 10px 18px;
    font-size: 14px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}
.filter-button:hover {
    background-color: #585873;
}
.filter-dropdown {
    position: relative;
}
.dropdown-menu {
    display: none;
    position: absolute;
    top: 100%; /* меню появляется под кнопкой */
    left: 0;
    background: radial-gradient(circle, #303048, #1e1e2b);
    color: var(--primary-text-color);
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
    padding: 10px;
    margin-top: 10px;
    min-width: 250px;
    z-index: 100;
    max-height: 270px;
    overflow-y: auto; 
    overflow-x: hidden; 
    padding-right: 10px;
}
.dropdown-menu.open {
    display: block;
}
.dropdown-title {
    font-weight: bold;
    margin-bottom: 8px;
}
.dropdown-menu label {
    display: block;
    margin-bottom: 8px;
    font-size: 14px;
}
.dropdown-menu input[type="checkbox"] {
    margin-right: 8px;
}
.filter-section__button {
    width: 240px;
    padding: 10px 40px;
    background: radial-gradient(circle, #ffbb8b, #ff7a29);
    color: var(--primary-body-color);
    border: 2px solid #5f5f7b;
    border-radius: 6px;
    font-size: 14px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}
.filter-section__button:hover {
    background-color: #585871;
}
.difficulty-levels {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 15px;
    margin-bottom: 20px;
}
.difficulty-button {
    padding: 10px 20px;
    background-color: var(--primary-text-color);
    color: #1e1e1e;
    border: 1px solid var(--primary-body-color);
    border-radius: 5px;
    font-size: 1em;
    cursor: pointer;
    transition:
        background-color 0.3s ease,
        color 0.3s ease;
}
.difficulty-button.active {
    background: radial-gradient(circle, #303048, #1e1e2b);
    color: white;
}
.filter-title {
    font-size: 1.5em;
    margin: 20px 0 10px;
    text-align: center;
}
.filter-options {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 10px;
    margin-bottom: 10px;
}
.filter-card {
    display: none;
    background: #f5f5f5;
    border: 1px solid var(--primary-border-color);
    border-radius: 10px;
    padding: 10px 16px;
}
.filter-card.active {
    display: block;
}
.card-header {
    display: flex;
    align-items: center;
    font-weight: bold;
    font-size: 1em;
    margin-top: 2px;
    margin-bottom: 2px;
}
.card-header input {
    margin-right: 10px;
}
.filter-apply-button {
    margin-top: 20px;
    padding: 16px 20px;
    background: radial-gradient(circle, #303048, #1e1e2b);
    color: var(--primary-text-color);
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 1em;
    transition: background-color 0.3s ease;
}
.filter-apply-button:hover {
    background: radial-gradient(circle, #3e3e5a, #1e1e2b);
}
.filter__main-title {
    font-size: 1.5em;
    margin: 20px 0 10px;
    text-align: center;
}
.filter__section-inner {
    display: flex;
    flex-direction: column;
}