.custom-dropdown-container {
    position: relative;
    width: 100%;
    max-width: calc(var(--tx) * 300);
    margin-bottom: calc(var(--tx) * 15);
    font-size: calc(var(--tx) * 14);
    user-select: none;
}

.custom-dropdown-selected {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: #fff;
    border: calc(var(--tx) * 1) solid #ddd;
    border-radius: calc(var(--tx) * 4);
    padding: calc(var(--tx) * 10) calc(var(--tx) * 15);
    cursor: pointer;
    transition: border-color 0.3s;
}

.custom-dropdown-selected:hover {
    border-color: #999;
}

.custom-dropdown-selected .dropdown-icon {
    font-size: calc(var(--tx) * 10);
    margin-left: calc(var(--tx) * 10);
    transition: transform 0.3s;
}

.custom-dropdown-container.active .dropdown-icon {
    transform: rotate(180deg);
}

.custom-dropdown-options {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: #fff;
    border: calc(var(--tx) * 1) solid #ddd;
    border-top: none;
    border-radius: 0 0 calc(var(--tx) * 4) calc(var(--tx) * 4);
    z-index: 100;
    display: none;
    max-height: calc(var(--tx) * 200);
    overflow-y: auto;
    box-shadow: 0 calc(var(--tx) * 4) calc(var(--tx) * 6) rgba(0, 0, 0, 0.1);
}

.custom-dropdown-container.active .custom-dropdown-options {
    display: block;
}

.dropdown-item {
    padding: calc(var(--tx) * 10) calc(var(--tx) * 15);
    cursor: pointer;
    transition: background-color 0.2s;
}

.dropdown-item:hover {
    background-color: #f5f5f5;
}

.dropdown-item.selected {
    background-color: #f0f0f0;
    font-weight: bold;
}

.dropdown-item.swatch-disabled {
    opacity: 0.5;
    cursor: not-allowed;
    background-color: #fafafa;
    color: #ccc;
    pointer-events: none;
}