.menu {
    position: relative;
    width: max-content;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
}

.btn-dropdown {
    background-color: #6b6;
    color: #fff;
    font-size: 1.4rem;
    padding: 12px;
    border-radius: 10px;
    cursor: pointer;
    border: 1px solid #595;
    outline: none;
    transition: 0.08s background-color ease-in-out;
}

.btn-dropdown:hover {
    background-color: #7c7;
}

.btn-dropdown:active {
    background-color: #7b7;
}

.menu-dropdown {
    position: absolute;
    border: 1px solid #ccc;
    color: #666;
    left: 0;
    font-size: 1.2rem;
    min-width: 90%;
    text-align: left;
    top: 100%;
    box-sizing: border-box;
    padding: 4px;
    border-radius: 10px;
    transition: opacity 0.2s ease-in-out;
    z-index: 10;
    background-color: #fff;
}

.menu-dropdown ul {
    display: flex;
    flex-direction: column;
    gap: 2px;
    list-style: none;
    margin: 0;
    padding: 0;
}

.menu-dropdown li {
    cursor: pointer;
    transition: 0.1s color ease-in-out;
}

.menu-dropdown li:hover {
    color: #444;
}

.hidden {
    transition: all 0.2s ease-in-out;
    opacity: 0;
    z-index: -10;
}