.banner-section {
    margin-top: 10vh;
    position: relative;
    z-index: 20;
}

.banner-image {
    height: 100vh;
    width: 100%;
    background-size: cover !important;
    background-position: center !important;
    background-repeat: no-repeat !important;
    color: white;
    display: flex;
    align-items: center;
    position: relative;
    z-index: -10;
}

.banner-section .overlay {
    content: "";
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    background-color: #00000099;
    z-index: -2;
}

/* .banner-section h1 {
    font-size: 64px;
    font-weight: 800;
    text-transform: uppercase;
    line-height: 120%;
}

.banner-section h2 {
    font-size: 48px;
    font-weight: 700;
    text-transform: uppercase;
    line-height: 120%;
} */

.banner-image .container {
    position: relative;
    z-index: 1;
}

.banner-section .desc {
    font-size: 20px;
    text-align: justify;
}

.btn-solid-primary {
    font-weight: 700;
}

.hero-section {
    padding: 50px 0;
    background-color: var(--primary-color);
    color: #fff;
}

.hero-section h2 {
    font-size: 36px;
    font-weight: 700;
    text-transform: uppercase;
}

.hero-section p {
    font-size: 28px;
    margin-top: 20px;
}

.stage-wrapper {
    display: flex;
    justify-content: end;
    align-items: end;
    line-height: 100%;
    color: var(--primary-color);
    position: relative;
}

.stage-subtitle {
    font-size: 24px;
    font-weight: bold;
}

.stage-title {
    font-size: 36px;
    font-weight: bold;
    margin-bottom: 20px;
    margin: 0;
}

.stage-number {
    font-size: 96px;
    line-height: 90%;
    font-weight: 700;
    letter-spacing: 0.5px;
}

.esclip {
    position: absolute;
    top: 50%;
    right: -50%;
    width: 300px;
    height: 300px;
    overflow: hidden;
    background: rgba(90, 166, 193, 0.4);
    filter: blur(93.95px);
    border-radius: 50%;
    z-index: -1;
    transform: translate(-50%, -50%);
}

.path-section {
    overflow-x: clip;
}

.path-section p,
desc {
    font-size: 18px;
    line-height: 120%;
    text-align: justify;
}

.path-section .desc-wrapper {
    max-width: 650px;
}

.path-section .container {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
}

.path-section .line {
    width: 0;
    height: 65px;
    padding: 2px;
    background: var(--primary-color);
    border-radius: 8px;
    position: relative;
}

.path-section .line::after {
    content: "";
    width: 14px;
    height: 14px;
    background-color: var(--primary-color);
    /* màu chấm tròn */
    border-radius: 50%;
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1;
}

.path-section h2 {
    font-weight: 700;
    text-transform: uppercase;
}

.third-section,
.fourth-section h2 {
    color: var(--primary-color);
    text-align: center;
}

.third-section .card-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: 20px;
    border: 2px solid var(--primary-color);
    border-radius: 999px;
    height: 75px;
    overflow: hidden;
}

.third-section .card-wrapper .card-left {
    flex: 1;
    text-align: center;
    font-size: 20px;
    font-weight: bold;
    background: var(--primary-color);
    color: #fff;
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
}

.third-section .card-wrapper .card-right {
    flex: 3;
    text-align: center;
    font-size: 20px;
    font-weight: bold;
    color: var(--primary-color);
}

h1.title {
    font-weight: 700;
    text-transform: uppercase;
    margin-bottom: 20px;
    text-align: center;
    color: var(--primary-color);
}

.fifth-section .course-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 20px;
    overflow: hidden;
}

.fifth-section .course-img:hover {
    box-shadow: 0px 4px 8.1px 0px #00455E66;
}

.book-card-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 50px 40px;
}

.book-card {
    overflow: hidden;
    transition: all 0.3s ease;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 30vh;
    border-radius: 20px;
}

.book-carousel .owl-item.center .book-card {
    transform: scale(1.2);
    transition: all 0.4s ease;
}

@media (max-width: 768px) {
    .banner-section h1 {
        font-size: 32px;
    }

    .banner-section h2 {
        font-size: 20px;
    }

    .banner-section .desc {
        font-size: 16px;
    }

    .hero-section h2 {
        font-size: 24px;
    }

    .hero-section p {
        font-size: 20px;
    }

    .stage-wrapper {
        display: block;
    }

    .book-card-wrapper {
        margin: 30px 20px;
    }

    .book-carousel .owl-item.center .book-card {
        transform: scale(1);
    }
    
}