#filter-menu {
    position: absolute;
    bottom: -100%;
    left: 0;
    width: 100%;
    height: 60%;
    background: rgba(15, 15, 15, 0.9);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    transition: bottom 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    z-index: 100;
    border-radius: 30px 30px 0 0;
    display: flex;
    flex-direction: column;
    overflow: hidden; /* Zorgt dat de header niet wegscrolt */
}

#filter-menu.open {
    bottom: 0;
}

#filter-menu-content {
    display: flex;
    flex-direction: column;
    height: 100%;
}

.menu-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 25px 25px 15px 25px;
    background: transparent;
    z-index: 101;
}

.menu-scroll-container {
    flex: 1;
    overflow-y: auto;
    padding: 0 25px 25px 25px;
    -webkit-overflow-scrolling: touch;
}

.menu-category h3 {
    color: #888;
    font-size: 10px;
    letter-spacing: 2px;
    margin: 20px 0 10px 0;
    text-transform: uppercase;
}

.menu-items {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}

.menu-items button {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: #fff;
    padding: 15px 5px;
    font-size: 11px;
    border-radius: 12px;
    transition: background 0.2s;
}

.menu-items button:active {
    background: #007AFF;
    border-color: #007AFF;
}