/* The public course detail page. Scoped to avoid affecting catalog and lessons. */
.course-detail {
    --course-ink: var(--site-ink, #12243a);
    --course-blue: var(--site-blue, #244a80);
    --course-gold: var(--site-gold, #b58a3b);
    --course-muted: var(--site-muted, #536276);
    --course-line: var(--site-line, #dce2e8);
    --course-paper: #fff;
    color: var(--course-ink);
}

.course-detail a {
    text-decoration: none;
}

/* Legacy layout-fixes.css applies !important padding to every section. */
.course-detail section.course-detail__hero {
    padding-block: clamp(20px, 3vw, 36px) clamp(28px, 3.5vw, 44px) !important;
    border-block-end: 1px solid var(--course-line);
    background: #eff2f4;
}

.course-detail__breadcrumb {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    margin-block-end: clamp(18px, 2.5vw, 30px);
    color: var(--course-muted);
    font-size: 13px;
    line-height: 1.5;
}

.course-detail__breadcrumb a {
    color: var(--course-muted);
}

.course-detail__breadcrumb a:hover {
    color: var(--course-blue);
}

.course-detail__breadcrumb span {
    opacity: 0.5;
}

.course-detail__hero-content {
    max-width: 930px;
}

.course-detail__eyebrow {
    display: inline-block;
    margin-block-end: 10px;
    color: var(--course-blue);
    font-size: 13px;
    font-weight: 800;
}

.course-detail__hero h1 {
    max-width: 900px;
    margin: 0;
    color: var(--course-ink);
    font-size: clamp(32px, 4vw, 54px);
    font-weight: 800;
    line-height: 1.2;
    letter-spacing: -0.025em;
}

.course-detail__summary {
    display: -webkit-box;
    max-width: 760px;
    margin: 14px 0 0;
    overflow: hidden;
    color: #435368;
    font-size: clamp(16px, 1.6vw, 19px);
    line-height: 1.7;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 3;
}

.course-detail__meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 12px 28px;
    margin-block-start: 18px;
    color: #3b4d60;
    font-size: 14px;
    font-weight: 600;
}

.course-detail__meta > span,
.course-detail__teacher-inline {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    min-height: 32px;
}

.course-detail__meta i {
    color: var(--course-blue);
}

.course-detail__meta .fa-star {
    color: var(--course-gold);
}

.course-detail__meta small {
    color: var(--course-muted);
    font-size: 12px;
}

.course-detail__teacher-inline {
    color: var(--course-ink);
}

.course-detail__teacher-inline:hover {
    color: var(--course-blue);
}

.course-detail__teacher-inline img,
.course-detail__teacher-inline > span {
    display: grid;
    flex: 0 0 32px;
    place-items: center;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: #dfe7ef;
    object-fit: cover;
    color: var(--course-blue);
}

.course-detail__layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(300px, 360px);
    gap: clamp(24px, 3vw, 48px);
    align-items: start;
    padding-block: clamp(24px, 3vw, 40px) 56px;
}

.course-detail__sidebar {
    grid-column: 2;
    grid-row: 1;
    min-width: 0;
}

.course-detail__main {
    grid-column: 1;
    grid-row: 1;
    min-width: 0;
}

.course-detail__purchase-card {
    position: sticky;
    top: 24px;
    overflow: hidden;
    border: 1px solid var(--course-line);
    border-radius: 12px;
    background: var(--course-paper);
    box-shadow: 0 12px 34px rgb(18 36 58 / 8%);
}

.course-detail__visual {
    position: relative;
    display: grid;
    aspect-ratio: 16 / 10;
    overflow: hidden;
    background: #dfe7ef;
}

.course-detail__visual > img,
.course-detail__visual-placeholder {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.course-detail__visual-placeholder {
    display: grid;
    place-items: center;
    color: var(--course-blue);
    font-size: 44px;
}

.course-detail__preview-link {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 11px;
    background: rgb(10 26 44 / 42%);
    color: #fff !important;
    font-size: 14px;
    font-weight: 800;
    transition: background-color 180ms ease;
}

.course-detail__preview-link:hover,
.course-detail__preview-link:focus-visible {
    background: rgb(10 26 44 / 58%);
}

.course-detail__play-icon {
    display: grid;
    place-items: center;
    width: 58px;
    height: 58px;
    border: 1px solid rgb(255 255 255 / 80%);
    border-radius: 50%;
    background: #fff;
    color: var(--course-blue);
    font-size: 18px;
    transition: transform 180ms ease;
}

.course-detail__preview-link:hover .course-detail__play-icon {
    transform: scale(1.06);
}

.course-detail__purchase-body {
    padding: clamp(22px, 3vw, 30px);
}

.course-detail__price {
    display: grid;
    gap: 4px;
    margin-block-end: 20px;
}

.course-detail__price > span {
    color: var(--course-muted);
    font-size: 13px;
}

.course-detail__price strong {
    color: var(--course-ink);
    font-size: 32px;
    font-weight: 800;
    line-height: 1.1;
}

.course-detail__price small,
.course-detail__plan strong small {
    font-size: 13px;
    font-weight: 700;
}

.course-detail__primary-action,
.course-detail__secondary-action {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    min-height: 48px;
    padding: 10px 16px;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 800;
    text-align: center;
}

.course-detail__primary-action {
    background: var(--course-blue);
    color: #fff !important;
}

.course-detail__primary-action:hover {
    background: #1c3d6b;
}

.course-detail__secondary-action {
    margin-block-start: 8px;
    border: 1px solid var(--course-line);
    color: var(--course-blue) !important;
}

.course-detail__secondary-action:hover {
    border-color: var(--course-blue);
    background: #f5f8fb;
}

.course-detail__access-label {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-block-end: 16px;
    color: #22604a;
    font-size: 14px;
    font-weight: 700;
}

.course-detail__unavailable {
    margin: 0 0 16px;
    color: var(--course-muted);
    font-size: 14px;
    line-height: 1.6;
}

.course-detail__facts {
    margin-block-start: 28px;
    padding-block-start: 24px;
    border-block-start: 1px solid var(--course-line);
}

.course-detail__facts h2 {
    margin: 0 0 12px;
    color: var(--course-ink);
    font-size: 17px;
    font-weight: 800;
}

.course-detail__facts dl {
    margin: 0;
}

.course-detail__facts dl > div {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    padding-block: 10px;
    color: var(--course-muted);
    font-size: 14px;
}

.course-detail__facts dl > div + div {
    border-block-start: 1px solid #eef1f4;
}

.course-detail__facts dt {
    font-weight: 500;
}

.course-detail__facts dd {
    margin: 0;
    color: var(--course-ink);
    font-weight: 700;
    text-align: end;
}

.course-detail__share {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    min-height: 42px;
    margin-block-start: 16px;
    padding: 0;
    border: 0;
    background: none;
    color: var(--course-blue);
    font-size: 14px;
    font-weight: 700;
    cursor: pointer;
}

.course-detail__share-status {
    display: block;
    color: #22604a;
    font-size: 12px;
}

.course-detail__section-nav {
    display: flex;
    align-items: center;
    gap: clamp(16px, 2.5vw, 34px);
    overflow-x: auto;
    margin-block-end: 24px;
    border-block-end: 1px solid var(--course-line);
    scrollbar-width: thin;
    white-space: nowrap;
}

.course-detail__section-nav a {
    flex: 0 0 auto;
    padding-block: 0 12px;
    border-block-end: 2px solid transparent;
    color: var(--course-muted);
    font-size: 15px;
    font-weight: 700;
}

.course-detail__section-nav a:hover,
.course-detail__section-nav a:focus-visible {
    border-color: var(--course-gold);
    color: var(--course-blue);
}

.course-detail section.course-detail__section {
    padding-block: 0 !important;
    scroll-margin-top: 24px;
}

.course-detail section.course-detail__section + section.course-detail__section {
    margin-block-start: 30px;
    padding-block-start: 28px !important;
    border-block-start: 1px solid var(--course-line);
}

.course-detail__section h2 {
    margin: 0 0 16px;
    color: var(--course-ink);
    font-size: clamp(22px, 2.5vw, 30px);
    font-weight: 800;
    line-height: 1.35;
}

.course-detail__section-heading {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    justify-content: space-between;
    gap: 8px 20px;
    margin-block-end: 16px;
}

.course-detail__section-heading h2 {
    margin: 0;
}

.course-detail__section-heading > span {
    color: var(--course-muted);
    font-size: 14px;
    font-weight: 600;
}

.course-detail__prose {
    max-width: 76ch;
    overflow-wrap: anywhere;
    color: #34465a;
    font-size: 17px;
    line-height: 1.75;
}

.course-detail__prose :is(p, ul, ol, blockquote) {
    margin-block: 0 14px;
}

.course-detail__prose :is(h2, h3, h4) {
    margin-block: 22px 10px;
    color: var(--course-ink);
}

.course-detail__prose :is(img, iframe, video) {
    max-width: 100%;
    height: auto;
}

.course-detail__prose table {
    display: block;
    max-width: 100%;
    overflow-x: auto;
}

.course-detail__plans {
    display: grid;
    gap: 10px;
}

.course-detail__sample-note {
    margin: -4px 0 16px;
    color: var(--course-muted);
    font-size: 14px;
    line-height: 1.7;
}

.course-detail__plan {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto auto;
    align-items: center;
    gap: 14px 24px;
    padding: 18px 20px;
    border: 1px solid var(--course-line);
    border-radius: 9px;
    background: var(--course-paper);
}

.course-detail__plan h3 {
    margin: 0;
    color: var(--course-ink);
    font-size: 17px;
    font-weight: 800;
}

.course-detail__plan p {
    margin: 5px 0 0;
    color: var(--course-muted);
    font-size: 13px;
}

.course-detail__plan strong {
    color: var(--course-ink);
    font-size: 20px;
    font-weight: 800;
    white-space: nowrap;
}

.course-detail__plan--sample-locked {
    background: #f7f8f9;
}

.course-detail__plan--sample-locked strong {
    color: var(--course-muted);
    font-size: 13px;
    white-space: normal;
}

.course-detail__plan-state {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    color: var(--course-muted);
    font-size: 12px;
    font-weight: 700;
}

.course-detail__plan form {
    margin: 0;
}

.course-detail__plan button,
.course-detail__plan > a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 42px;
    padding: 8px 16px;
    border: 1px solid var(--course-blue);
    border-radius: 7px;
    background: var(--course-blue);
    color: #fff !important;
    font-size: 13px;
    font-weight: 800;
    white-space: nowrap;
    cursor: pointer;
}

.course-detail__plan button:hover,
.course-detail__plan > a:hover {
    background: #1c3d6b;
}

.course-detail__unit {
    border: 1px solid var(--course-line);
    border-radius: 9px;
    background: var(--course-paper);
}

.course-detail__unit + .course-detail__unit {
    margin-block-start: 10px;
}

.course-detail__unit summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    min-height: 64px;
    padding: 14px 20px;
    color: var(--course-ink);
    font-size: 16px;
    font-weight: 800;
    list-style: none;
    cursor: pointer;
}

.course-detail__unit summary::-webkit-details-marker {
    display: none;
}

.course-detail__unit summary::after {
    content: "+";
    order: 3;
    color: var(--course-blue);
    font-size: 24px;
    font-weight: 400;
    line-height: 1;
}

.course-detail__unit[open] summary::after {
    content: "−";
}

.course-detail__unit summary small {
    margin-inline-start: auto;
    color: var(--course-muted);
    font-size: 13px;
    font-weight: 500;
    white-space: nowrap;
}

.course-detail__lessons {
    margin: 0;
    padding: 4px 20px 12px;
    border-block-start: 1px solid var(--course-line);
    list-style: none;
}

.course-detail__lessons li {
    display: flex;
    align-items: center;
    gap: 10px;
    min-height: 50px;
    padding-block: 10px;
    color: #42546a;
    font-size: 14px;
}

.course-detail__lessons li + li {
    border-block-start: 1px solid #eef1f4;
}

.course-detail__lesson-icon {
    color: var(--course-blue);
}

.course-detail__lessons a {
    flex: 1 1 auto;
    color: var(--course-ink);
    font-weight: 700;
}

.course-detail__lessons a:hover {
    color: var(--course-blue);
}

.course-detail__lessons
    li
    > span:not(.course-detail__lesson-icon):not(.course-detail__free-label):not(
        .visually-hidden
    ):not(
        .course-detail__locked-label
    ) {
    flex: 1 1 auto;
}

.course-detail__lessons small {
    margin-inline-start: auto;
    color: var(--course-muted);
    font-size: 12px;
    white-space: nowrap;
}

.course-detail__free-label {
    padding: 3px 7px;
    border-radius: 4px;
    background: #eef4f0;
    color: #22604a;
    font-size: 11px;
    font-weight: 800;
    white-space: nowrap;
}

.course-detail__locked-label {
    padding: 3px 7px;
    border-radius: 4px;
    background: #eef0f3;
    color: var(--course-muted);
    font-size: 11px;
    font-weight: 700;
    white-space: nowrap;
}

.course-detail__empty {
    margin: 0;
    padding: 24px;
    border: 1px dashed var(--course-line);
    border-radius: 8px;
    color: var(--course-muted);
    font-size: 15px;
}

.course-detail__instructor {
    display: flex;
    align-items: flex-start;
    gap: 18px;
    padding: 24px;
    border: 1px solid var(--course-line);
    border-radius: 9px;
    background: var(--course-paper);
}

.course-detail__instructor > img,
.course-detail__instructor-initial {
    display: grid;
    flex: 0 0 72px;
    place-items: center;
    width: 72px;
    height: 72px;
    border-radius: 50%;
    background: #dfe7ef;
    object-fit: cover;
    color: var(--course-blue);
    font-size: 26px;
    font-weight: 800;
}

.course-detail__instructor h3 {
    margin: 0 0 5px;
    color: var(--course-ink);
    font-size: 19px;
    font-weight: 800;
}

.course-detail__instructor p {
    margin: 0 0 12px;
    color: var(--course-muted);
    font-size: 14px;
    line-height: 1.7;
}

.course-detail__instructor a {
    color: var(--course-blue);
    font-size: 14px;
    font-weight: 800;
}

.course-detail__review {
    display: flex;
    gap: 14px;
    padding-block: 22px;
    border-block-end: 1px solid var(--course-line);
}

.course-detail__review-avatar {
    display: grid;
    flex: 0 0 40px;
    place-items: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: #dfe7ef;
    color: var(--course-blue);
    font-weight: 800;
}

.course-detail__review-body {
    flex: 1;
    min-width: 0;
}

.course-detail__review-head {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    justify-content: space-between;
    gap: 4px 12px;
}

.course-detail__review-head h3 {
    margin: 0;
    color: var(--course-ink);
    font-size: 15px;
    font-weight: 800;
}

.course-detail__review-head time {
    color: var(--course-muted);
    font-size: 12px;
}

.course-detail__review-rating {
    display: inline-flex;
    gap: 3px;
    margin-block: 5px 8px;
    color: #d1d7df;
    font-size: 12px;
}

.course-detail__review-rating .is-filled {
    color: var(--course-gold);
}

.course-detail__review p {
    margin: 0;
    color: #435368;
    font-size: 14px;
    line-height: 1.8;
    overflow-wrap: anywhere;
}

.course-detail__review-form {
    display: grid;
    gap: 12px;
    margin-block-start: 24px;
    padding: 24px;
    border: 1px solid var(--course-line);
    border-radius: 9px;
    background: var(--course-paper);
}

.course-detail__review-form h3 {
    margin: 0 0 4px;
    color: var(--course-ink);
    font-size: 20px;
    font-weight: 800;
}

.course-detail__review-form fieldset {
    margin: 0 0 6px;
    padding: 0;
    border: 0;
}

.course-detail__review-form legend,
.course-detail__review-form > label {
    margin-block-end: 8px;
    color: var(--course-ink);
    font-size: 14px;
    font-weight: 700;
}

.course-detail__rating-options {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.course-detail__rating-options label {
    position: relative;
    cursor: pointer;
}

.course-detail__rating-options input {
    position: absolute;
    opacity: 0;
}

.course-detail__rating-options span {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    min-width: 52px;
    min-height: 40px;
    justify-content: center;
    border: 1px solid var(--course-line);
    border-radius: 7px;
    background: #fff;
    color: var(--course-muted);
    font-size: 14px;
    font-weight: 700;
}

.course-detail__rating-options input:checked + span {
    border-color: var(--course-gold);
    background: #faf5e9;
    color: var(--course-ink);
}

.course-detail__rating-options input:focus-visible + span {
    outline: 2px solid var(--course-blue);
    outline-offset: 2px;
}

.course-detail__review-form textarea {
    width: 100%;
    min-height: 110px;
    padding: 12px;
    border: 1px solid var(--course-line);
    border-radius: 7px;
    background: #fff;
    color: var(--course-ink);
    resize: vertical;
}

.course-detail__review-form textarea:focus {
    border-color: var(--course-blue);
    outline: 2px solid transparent;
}

.course-detail__review-form > button,
.course-detail__review-login {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: fit-content;
    min-height: 44px;
    padding: 9px 20px;
    border: 0;
    border-radius: 7px;
    background: var(--course-blue);
    color: #fff !important;
    font-size: 14px;
    font-weight: 800;
    cursor: pointer;
}

.course-detail__review-login {
    margin-block-start: 24px;
}

.course-detail__error {
    color: #a63139;
    font-size: 12px;
}

@media (max-width: 900px) {
    .course-detail__layout {
        display: flex;
        flex-direction: column;
        gap: 26px;
        padding-block: 24px 48px;
    }

    .course-detail__sidebar,
    .course-detail__main {
        width: 100%;
    }

    .course-detail__purchase-card {
        position: static;
        display: grid;
        grid-template-columns: minmax(220px, 42%) minmax(0, 1fr);
    }

    .course-detail__visual {
        height: 100%;
        min-height: 270px;
        aspect-ratio: auto;
    }

    .course-detail__section-nav {
        margin-block-end: 22px;
    }
}

@media (max-width: 640px) {
    .course-detail section.course-detail__hero {
        padding-block: 20px 28px !important;
    }

    .course-detail__breadcrumb {
        margin-block-end: 18px;
    }

    .course-detail__hero h1 {
        font-size: clamp(28px, 8vw, 40px);
    }

    .course-detail__meta {
        gap: 8px 18px;
        font-size: 13px;
    }

    .course-detail__purchase-card {
        display: block;
    }

    .course-detail__visual {
        height: auto;
        min-height: 0;
        aspect-ratio: 16 / 10;
    }

    .course-detail section.course-detail__section + section.course-detail__section {
        margin-block-start: 24px;
        padding-block-start: 22px !important;
    }

    .course-detail__plan {
        grid-template-columns: minmax(0, 1fr) auto;
    }

    .course-detail__plan form,
    .course-detail__plan > a,
    .course-detail__plan-state {
        grid-column: 1 / -1;
    }

    .course-detail__plan button,
    .course-detail__plan > a {
        width: 100%;
    }

    .course-detail__lessons li {
        flex-wrap: wrap;
    }

    .course-detail__lessons small {
        margin-inline-start: 0;
    }

    .course-detail__instructor {
        padding: 18px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .course-detail *,
    .course-detail *::before,
    .course-detail *::after {
        scroll-behavior: auto !important;
        transition-duration: 0.01ms !important;
    }
}