html {
    font-size: 62.5%;
}

/*  */
/*  */
/* ----------------------------------------------------------section devider-------------------------------------------------------------------------------- */
/*  */
/*  */

.course-details > section {
    margin: 5rem 0;
}

.course-details h3 {
    font-size: 2.4rem;
    margin-bottom: 1.7rem;
    color: skyblue;
    text-decoration: underline;
}

/*  */
/*  */
/* hero section */
.cd-hero {
    position: relative;
}

.cd-hero img {
    width: 100%;
}

.cd-hero > div {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    display: flex;
    flex-direction: column;
}

.cd-hero h2 {
    font-size: 4.5rem;
    font-weight: bold;
    margin-bottom: 1.7rem;
}

.cd-hero button {
    font-size: 1.9rem;
    background: lightseagreen;
    border: 0.3rem solid lavender;
    border-style: inset;
    padding: 1rem 2.2rem;
    font-weight: bold;
    color: white;
    align-self: center;
    transition: all ease-in-out 0.4s;
    width: 15rem;
}

.cd-hero button:hover {
    transform: scale(0.9);
    cursor: pointer;
}

/*  */
/*  */
/* overview section */
.cd-ovw-flex {
    display: flex;
    justify-content: center;
    align-items: center;
}

.cd-ovw-child-1 {
    flex: 60%;
}

.cd-ovw-child-2 {
    flex: 40%;
    text-align: center;
}

.cd-ovw-child-1 > div:not(:last-child) {
    margin-bottom: 3rem;
}

.cd-ovw-child-2 > div:not(:last-child) {
    margin-bottom: 7rem;
}

.cd-ovw-child-1 h4 {
    font-weight: bolder;
    font-size: 2rem;
    margin-bottom: 1.3rem;
}

.cd-ovw-child-1 p {
    font-size: 1.7rem;
    line-height: 1.7;
    max-width: 50%;
}

.cd-ovw-child-2 > div {
    max-width: 50%;
    margin: auto;
    font-size: 1.7rem;
    color: gray;
}

.cd-ovw-child-2 > div:nth-child(1) > P:nth-child(1) {
    font-size: 2.5rem;
    font-weight: bolder;
    color: lightseagreen;
}

.cd-ovw-child-2 > div:nth-child(1) > P:nth-child(1):hover {
    cursor: pointer;
    font-size: 3rem;
    color: dodgerblue;
}

.cd-ovw-child-2 > div:nth-child(1) > P:nth-child(2) {
    margin: 1rem 0;
    font-size: 2.1rem;
    font-weight: bold;
}

.cd-ovw-child-2 > div:nth-child(2) > P:nth-child(2) {
    margin: 1rem 0 0 0;
    font-size: 2.1rem;
    font-weight: bold;
}

/*  */
/*  */
/* syllabus section */
.cd-slybs-flex {
    display: flex;
}

.cd-slybs-flex h4 {
    font-weight: bolder;
    font-size: 2rem;
    margin-bottom: 1.3rem;
}

.cd-slybs-flex h5 {
    font-size: 1.5rem;
    font-weight: bold;
}

.cd-slybs-child-1 {
    flex: 60%;
}

.cd-slybs-child-2 {
    flex: 40%;
}

.cd-slybs-child-1 > div:not(:last-child) {
    margin-bottom: 2rem;
}

.cd-slybs-child-1 > div > p {
    font-size: 1.4rem;
    line-height: 1.4;
    max-width: 50%;
}

.cd-slybs-child-1 > div:nth-child(1) > p {
    font-size: 1.7rem;
    line-height: 1.4;
    max-width: 50%;
}

.cd-slybs-child-2 > div {
    max-width: 50%;
    margin: 0 auto 5rem;
}

.cd-slybs-child-2 > div:nth-child(1) p {
    font-size: 1.7rem;
}

.cd-slybs-child-2 > div:nth-child(1) a {
    color: rgb(119, 201, 252);
    font-family: "Libre Baskerville", serif;
    font-size: 1.5rem;
    text-decoration: underline;
    margin: 0 0.5rem;
}

.cd-slybs-child-2 > div:nth-child(2) {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    border-radius: 0.7rem;
    min-height: 20rem;
    max-width: 25rem;
    box-shadow: 0 0 1.7rem 0.1rem grey;
}

.cd-slybs-child-2 > div:nth-child(2) > div {
    max-width: 35%;
}

.cd-slybs-child-2 > div:nth-child(2) img {
    width: 100%;
}

.cd-slybs-child-2 > div:nth-child(2) > h6 {
    font-size: 1.4rem;
    font-weight: bold;
}

.cd-slybs-child-2 > div:nth-child(2) > p {
    font-size: 1.4rem;
}

/*  */
/*  */
/* review section */
.cd-rw-card-container {
    margin-top: 3rem;
    padding: 3%;
    display: flex;
    align-items: center;
}

.cd-rw-card {
    margin: 3rem 0;
    background: rgb(197, 190, 190);
    max-width: 35rem;
    padding: 2%;
    min-height: 30rem;
    position: relative;
}

.quote {
    position: absolute;
    max-width: 5rem;
    top: -2.3rem;
    left: 2.1rem;
}

.quote img {
    width: 100%;
}

.cd-rw-card-head {
    display: flex;
    justify-content: center;
    align-items: center;
}

.cd-rw-card-head > div:nth-child(1) {
    flex: 20%;
    margin-right: 2rem;
}

.cd-rw-card-head > div:nth-child(2) {
    flex: 80%;
}

.cd-rw-card-head img {
    max-width: 100%;
}

.cd-rw-card-head h4 {
    font-size: 1.7rem;
    font-weight: bold;
}

.cd-rw-card-head h5 {
    font-size: 1.3rem;
}

.cd-rw-card-body {
    padding: 3%;
    background: gray;
    margin-top: 1.5rem;
    border-radius: 0.7rem;
}

.cd-rw-card-body p {
    font-size: 1.4rem;
    line-height: 1.7;
    color: rgb(233, 225, 225);
}

.cd-rw-card-sec {
    text-align: center;
}

/*  */
/*  */
/* review section slider */
.wrapper {
    width: 100%;
}

.wrapper .carousel {
    position: relative;
    max-width: 100rem;
    margin: auto;
    padding: 0 6rem;
}

.owl-dots {
    text-align: center;
}

.owl-dot {
    height: 1.5rem;
    width: 1.5rem;
    border-radius: 50%;
    cursor: pointer;
    outline: none;
    margin: 0 0.5rem;
    border: 0.2rem solid lightskyblue !important;
    transition: all 0.3s ease-in-out;
}

.owl-dot:hover,
.owl-dot.active {
    background-color: lightskyblue !important;
}

.owl-prev,
.owl-next {
    position: absolute;
    top: 45%;
    transform: translate(-50%, -50%);
}

.owl-prev {
    left: 4rem;
}

.owl-next {
    right: 1.5rem;
}

.owl-prev span,
.owl-next span {
    color: lightseagreen;
    font-size: 6rem;
}

.owl-prev span:hover,
.owl-next span:hover {
    color: lightskyblue;
    font-size: 7rem;
}