.roboto-thin {
    font-family: "Roboto", sans-serif;
    font-weight: 100;
    font-style: normal;
}

.roboto-light {
    font-family: "Roboto", sans-serif;
    font-weight: 300;
    font-style: normal;
}

.roboto-regular {
    font-family: "Roboto", sans-serif;
    font-weight: 400;
    font-style: normal;
}

.roboto-medium {
    font-family: "Roboto", sans-serif;
    font-weight: 500;
    font-style: normal;
}

.roboto-bold {
    font-family: "Roboto", sans-serif;
    font-weight: 700;
    font-style: normal;
}

.roboto-black {
    font-family: "Roboto", sans-serif;
    font-weight: 900;
    font-style: normal;
}

.roboto-thin-italic {
    font-family: "Roboto", sans-serif;
    font-weight: 100;
    font-style: italic;
}

.roboto-light-italic {
    font-family: "Roboto", sans-serif;
    font-weight: 300;
    font-style: italic;
}

.roboto-regular-italic {
    font-family: "Roboto", sans-serif;
    font-weight: 400;
    font-style: italic;
}

.roboto-medium-italic {
    font-family: "Roboto", sans-serif;
    font-weight: 500;
    font-style: italic;
}

.roboto-bold-italic {
    font-family: "Roboto", sans-serif;
    font-weight: 700;
    font-style: italic;
}

.roboto-black-italic {
    font-family: "Roboto", sans-serif;
    font-weight: 900;
    font-style: italic;
}

.table-margin {
    margin-left: 10px;
    margin-right: 10px;
    border-radius: 100px;
}

body {
    position: relative;
    margin: 0;
    padding: 0;
    font-family: "Roboto", sans-serif;
    font-style: normal;
}

body::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    min-height: 100vh; /* Đảm bảo nội dung có chiều cao tối thiểu */
    background-image: url('/image/bg.png');
    background-size: cover;
    background-position: center;
    opacity: 0.3; /* Độ mờ của ảnh nền */
    z-index: -1; /* Đặt pseudo-element dưới nội dung */
}