.overlay-menu {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100%;
    background-color: #000;
    z-index: 9999;
    display: none; /* Mặc định ẩn */
    overflow-y: auto;
    padding: 3rem 1rem;
}
.overlay-container {
    display: flex;
    justify-content: space-between;
    flex-direction: row-reverse;
    width: 100%;
    max-width: 480px;
    margin: 0 auto;
    min-height: 100dvh;
    padding: 3rem 1rem;
    box-sizing: border-box;
}
.overlay-menu.is-open {
    display: flex;
}