.menu-container {
    width: 100%;
    display: flex;
    justify-content: center;
    padding: 20px 0;
}

.menu-3level {
    display: flex;
    width: 100%;
    max-width: 1200px;
}

/* Cột trái */
.menu-left {
    width: 20%;
    background: #fff;
    padding: 0 15px;
    padding-top: 20px;
    border-top-left-radius: 8px;
    border-bottom-left-radius: 8px;
}

.menu-lv1-item {
    padding: 10px 20px;
    cursor: pointer;
    background: #ebedef;
    transition: background 0.2s;
    margin-top: 10px;
    color: #2F3589;
    border-radius: 4px;
}

.menu-lv1-item:hover {
    background: #f0f0f0;
}

.menu-lv1-item.active {
    background: rgb(255 202 72);
}

/* Cột phải */
.menu-right {
    position: relative;
    width: 80%;
    padding: 20px;
    background: #fff;
    border-top-right-radius: 8px;
    border-bottom-right-radius: 8px;
}

.menu-right::before {
    content: "";
    position: absolute;
    left: 0;
    top: 5%;
    height: 90%;
    width: 1px;
    background-color: #ddd;
}


.menu-lv2:last-child {
    border-bottom: none;
}

.menu-right-content {
    display: none;
}

.menu-right-content.active {
    display: block;
}

/* Menu LV2 */
.menu-lv2 {
    margin-bottom: 20px;
    border-bottom: 1px solid #ccc;
    padding-bottom: 25px;
}

.menu-lv2-title {
    font-weight: 600;
    font-size: 16px;
    margin-bottom: 10px;
    color: #2F3589;
}

/* Menu LV3 */
.menu-lv3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.menu-lv3-item {
    display: block;
    text-align: center;
    background: #fff;
    border: 1px solid #2F3589;
    padding: 10px;
    border-radius: 6px;
    transition: all 0.2s;
    text-decoration: none;
    color: rgba(18, 34, 87, 1) !important;
}

.menu-lv3-item:hover {
    background: rgb(255 194 43 / var(--tw-bg-opacity, 1));
    border-color: #2F3589;
}

/* Liên kết menu chính */
.meu-khoa-hoc {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

/* Đảm bảo sub-menu hiển thị đúng */
.sub-menu {
    height: auto !important;
}