.course-detail__section--about {
    position: relative;
    padding: clamp(56px, 7vw, 86px) 0;
    overflow: hidden;
    background:
        radial-gradient(circle at 8% 12%, rgba(105, 55, 232, .09), transparent 28%),
        #f8f7fc;
}

.course-detail__about-card {
    position: relative;
    display: grid;
    grid-template-columns: minmax(260px, .68fr) minmax(0, 1.45fr);
    gap: clamp(34px, 5vw, 72px);
    padding: clamp(30px, 4.5vw, 58px);
    overflow: hidden;
    border: 1px solid rgba(100, 55, 232, .13);
    border-radius: clamp(24px, 3vw, 38px);
    background: rgba(255, 255, 255, .96);
    box-shadow: 0 24px 70px rgba(40, 27, 75, .08);
}

.course-detail__about-card::before {
    content: "";
    position: absolute;
    top: -125px;
    left: -95px;
    width: 280px;
    height: 280px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(100, 55, 232, .15), rgba(100, 55, 232, 0) 70%);
    pointer-events: none;
}

.course-detail__about-heading {
    position: relative;
    align-self: start;
    min-width: 0;
}

.course-detail__section--about h2 {
    max-width: 420px;
    font-size: clamp(34px, 4.1vw, 54px);
    line-height: 1.04;
    overflow-wrap: anywhere;
}

.course-detail__about-content {
    position: relative;
    max-width: 850px;
    color: #40394f;
    font-size: clamp(16px, 1.25vw, 18px);
    line-height: 1.75;
}

.course-detail__about-content p {
    margin: 0 0 18px;
}

.course-detail__about-content p:has(+ ul),
.course-detail__about-content p:has(+ ol) {
    margin-top: 27px;
    margin-bottom: 11px;
    color: #211a33;
    font-weight: 800;
}

.course-detail__about-content ul,
.course-detail__about-content ol {
    display: grid;
    gap: 9px;
    margin: 12px 0 24px;
    padding: 0;
    list-style: none;
}

.course-detail__about-content li {
    position: relative;
    margin: 0;
    padding: 11px 14px 11px 42px;
    border: 1px solid rgba(100, 55, 232, .1);
    border-radius: 13px;
    background: #faf9fe;
}

.course-detail__about-content li::before {
    content: "✓";
    position: absolute;
    top: 11px;
    left: 14px;
    display: grid;
    width: 19px;
    height: 19px;
    place-items: center;
    border-radius: 50%;
    color: #fff;
    background: var(--course-accent, #6437e8);
    font-size: 11px;
    font-weight: 900;
    line-height: 1;
}

.course-detail__about-content > :last-child {
    margin-bottom: 0;
}

@media (max-width: 900px) {
    .course-detail__about-card {
        grid-template-columns: 1fr;
        gap: 25px;
    }

    .course-detail__section--about h2 {
        max-width: 620px;
    }
}

@media (max-width: 560px) {
    .course-detail__section--about {
        padding: 42px 0;
    }

    .course-detail__about-card {
        gap: 20px;
        padding: 24px 18px;
        border-radius: 22px;
    }

    .course-detail__section--about h2 {
        max-width: none;
        font-size: 34px;
    }

    .course-detail__about-content li {
        padding-right: 11px;
    }
}

html[data-theme="dark"] .course-detail__section--about,
body.is-dark-theme .course-detail__section--about {
    background: #17131f;
}

html[data-theme="dark"] .course-detail__about-card,
body.is-dark-theme .course-detail__about-card {
    border-color: rgba(190, 166, 255, .18);
    background: #211b2c;
}

html[data-theme="dark"] .course-detail__about-content,
body.is-dark-theme .course-detail__about-content {
    color: #ded7eb;
}

html[data-theme="dark"] .course-detail__about-content p:has(+ ul),
html[data-theme="dark"] .course-detail__about-content p:has(+ ol),
body.is-dark-theme .course-detail__about-content p:has(+ ul),
body.is-dark-theme .course-detail__about-content p:has(+ ol) {
    color: #fff;
}

html[data-theme="dark"] .course-detail__about-content li,
body.is-dark-theme .course-detail__about-content li {
    border-color: rgba(190, 166, 255, .16);
    background: #292134;
}

html[data-a11y-color="contrast"] .course-detail__section--about {
    color: #fff;
    background: #000;
}

html[data-a11y-color="contrast"] .course-detail__about-card {
    border: 3px solid #fff;
    background: #000;
    box-shadow: none;
}

html[data-a11y-color="contrast"] .course-detail__about-content,
html[data-a11y-color="contrast"] .course-detail__about-content p:has(+ ul),
html[data-a11y-color="contrast"] .course-detail__about-content p:has(+ ol) {
    color: #fff;
}

html[data-a11y-color="contrast"] .course-detail__about-content li {
    border: 2px solid #fff;
    background: #000;
}

/* v2.19.36: a compact, crop-safe course hero. */
.course-detail__hero {
    padding: clamp(48px, 5vw, 68px) 0 52px;
}

.course-detail__hero-grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(350px, .9fr);
    gap: clamp(36px, 5vw, 76px);
}

.course-detail__visual {
    width: 100%;
    height: auto;
    min-height: 0;
    max-height: 480px;
    aspect-ratio: 5 / 4;
    overflow: hidden;
    border-radius: 30px;
    background: var(--course-tint, #f3efff);
    box-shadow: 0 24px 70px rgba(28, 26, 45, .14);
}

.course-detail__hero-image,
.course-detail__image-placeholder {
    width: 100%;
    height: 100%;
    min-height: 0;
    border-radius: inherit;
    box-shadow: none;
}

.course-detail__hero-image {
    object-fit: cover;
    object-position: center 35%;
}

/* v2.19.36: visual benefit cards with administrator-selected icons. */
.course-detail__section--soft {
    padding: clamp(72px, 7vw, 94px) 0;
    background:
        radial-gradient(circle at 88% 8%, rgba(105, 55, 232, .08), transparent 26%),
        linear-gradient(180deg, #faf9fd 0%, #f6f4fa 100%);
}

.course-detail__section--soft .course-detail__section-heading {
    max-width: 820px;
    margin-bottom: 34px;
}

.course-detail__section--soft .course-detail__section-heading h2 {
    max-width: 780px;
    font-size: clamp(36px, 4.4vw, 54px);
}

.course-detail__cards {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
}

.course-detail__info-card {
    position: relative;
    min-width: 0;
    padding: 26px;
    overflow: hidden;
    border: 1px solid rgba(93, 61, 172, .12);
    border-radius: 22px;
    background: rgba(255, 255, 255, .94);
    box-shadow: 0 14px 36px rgba(40, 27, 75, .06);
    transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease;
}

.course-detail__info-card::after {
    content: "";
    position: absolute;
    right: -34px;
    bottom: -42px;
    width: 112px;
    height: 112px;
    border-radius: 50%;
    background: var(--course-tint, #f3efff);
    opacity: .72;
    pointer-events: none;
}

.course-detail__info-card:hover {
    transform: translateY(-3px);
    border-color: color-mix(in srgb, var(--course-accent, #6437e8) 28%, transparent);
    box-shadow: 0 20px 44px rgba(40, 27, 75, .1);
}

.course-detail__card-number {
    display: none;
}

.course-detail__card-icon {
    position: relative;
    z-index: 1;
    display: grid;
    width: 52px;
    height: 52px;
    place-items: center;
    border: 1px solid color-mix(in srgb, var(--course-accent, #6437e8) 16%, transparent);
    border-radius: 16px;
    background: var(--course-tint, #f3efff);
    font-size: 24px;
    line-height: 1;
}

.course-detail__info-card h3 {
    position: relative;
    z-index: 1;
    margin: 20px 0 9px;
    color: #201a30;
    font-size: clamp(19px, 1.6vw, 22px);
    line-height: 1.22;
    overflow-wrap: anywhere;
}

.course-detail__info-card p {
    position: relative;
    z-index: 1;
    margin: 0;
    color: #625b70;
    font-size: 15.5px;
    line-height: 1.62;
}

.course-detail__info-card:only-child {
    max-width: 760px;
}

@media (max-width: 1100px) {
    .course-detail__cards {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 1000px) {
    .course-detail__hero-grid {
        grid-template-columns: 1fr;
    }

    .course-detail__visual {
        max-height: 500px;
        aspect-ratio: 16 / 9;
    }
}

@media (max-width: 680px) {
    .course-detail__hero {
        padding: 42px 0 38px;
    }

    .course-detail__visual {
        min-height: 0;
        max-height: none;
        aspect-ratio: 4 / 3;
        border-radius: 22px;
    }

    .course-detail__hero-image,
    .course-detail__image-placeholder {
        min-height: 0;
    }

    .course-detail__section--soft {
        padding: 60px 0;
    }

    .course-detail__cards {
        grid-template-columns: 1fr;
        gap: 14px;
    }

    .course-detail__info-card {
        padding: 22px;
        border-radius: 19px;
    }

    .course-detail__card-icon {
        width: 48px;
        height: 48px;
        border-radius: 14px;
        font-size: 22px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .course-detail__info-card {
        transition: none;
    }

    .course-detail__info-card:hover {
        transform: none;
    }
}

html[data-theme="dark"] .course-detail__section--soft,
body.is-dark-theme .course-detail__section--soft {
    background: #17131f;
}

html[data-theme="dark"] .course-detail__info-card,
body.is-dark-theme .course-detail__info-card {
    border-color: rgba(190, 166, 255, .16);
    background: #211b2c;
    box-shadow: none;
}

html[data-theme="dark"] .course-detail__info-card h3,
body.is-dark-theme .course-detail__info-card h3 {
    color: #fff;
}

html[data-theme="dark"] .course-detail__info-card p,
body.is-dark-theme .course-detail__info-card p {
    color: #d5cede;
}

html[data-a11y-color="contrast"] .course-detail__section--soft {
    color: #fff;
    background: #000;
}

html[data-a11y-color="contrast"] .course-detail__info-card {
    border: 3px solid #fff;
    background: #000;
    box-shadow: none;
}

html[data-a11y-color="contrast"] .course-detail__info-card h3,
html[data-a11y-color="contrast"] .course-detail__info-card p {
    color: #fff;
}

html[data-a11y-color="contrast"] .course-detail__card-icon {
    border: 2px solid #fff;
    background: #000;
}

/* v2.19.37: the format sidebar must fit its content, not the text column. */
.course-detail__process-grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(320px, .88fr);
    align-items: start;
    gap: clamp(44px, 7vw, 100px);
}

.course-detail__schedule {
    width: min(100%, 480px);
    height: auto;
    min-height: 0;
    align-self: start;
    justify-self: end;
    padding: 28px;
}

.course-detail__schedule > div {
    padding-bottom: 18px;
    margin-bottom: 20px;
}

.course-detail__schedule .button {
    width: auto;
    min-height: 48px;
}

@media (max-width: 1000px) {
    .course-detail__process-grid {
        grid-template-columns: 1fr;
        gap: 34px;
    }

    .course-detail__schedule {
        width: 100%;
        max-width: none;
        justify-self: stretch;
    }
}