.product-detail-page {
    --product-navy: #071126;
    --product-blue: #1478f2;
    --product-blue-dark: #075cc9;
    background: #f4f7fb;
}

.product-detail-page .site-nav {
    background: rgba(6, 8, 16, 0.94);
}

.product-hero {
    overflow: hidden;
    padding: 8.5rem 0 4rem;
    background:
        radial-gradient(circle at 84% 10%, rgba(65, 215, 247, 0.2), transparent 28rem),
        radial-gradient(circle at 14% 76%, rgba(20, 120, 242, 0.18), transparent 30rem),
        var(--product-navy);
    color: #fff;
}

.product-hero__grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(20rem, 25rem);
    align-items: center;
    gap: clamp(2rem, 5vw, 5rem);
}

.product-hero__copy {
    min-width: 0;
}

.product-breadcrumb,
.product-eyebrow,
.product-stats,
.product-price,
.product-owned,
.product-button,
.product-includes li,
.product-panel__heading p,
.product-lesson,
.product-exam-card,
.product-inline-link,
.product-review__meta,
.product-dialog__header {
    display: flex;
    align-items: center;
}

.product-breadcrumb {
    flex-wrap: wrap;
    gap: 0.55rem;
    margin-bottom: 2rem;
    color: #a9b7cc;
    font-size: 0.82rem;
    font-weight: 700;
}

.product-breadcrumb a:hover,
.product-breadcrumb a:focus-visible {
    color: #fff;
}

.product-eyebrow {
    gap: 0.55rem;
    margin-bottom: 1rem;
    color: #76def6;
    font-size: 0.78rem;
    font-weight: 800;
    letter-spacing: 0.13em;
    text-transform: uppercase;
}

.product-eyebrow svg,
.product-owned svg,
.product-button svg,
.product-includes svg,
.product-lesson > svg,
.product-inline-link svg {
    width: 1.05rem;
    height: 1.05rem;
    flex: 0 0 auto;
}

.product-hero h1 {
    max-width: 54rem;
    margin: 0;
    color: #fff;
    font-size: clamp(2.25rem, 5vw, 4.8rem);
    letter-spacing: -0.055em;
    line-height: 1.02;
}

.product-hero__summary {
    max-width: 48rem;
    margin: 1.5rem 0 0;
    color: #bdc9da;
    font-size: clamp(1rem, 1.7vw, 1.2rem);
    line-height: 1.75;
}

.product-stats {
    flex-wrap: wrap;
    gap: 0.75rem;
    margin: 2rem 0 0;
    padding: 0;
    list-style: none;
}

.product-stats li {
    min-width: 7rem;
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 0.85rem;
    background: rgba(255, 255, 255, 0.045);
    padding: 0.7rem 0.9rem;
}

.product-stats strong,
.product-stats span {
    display: block;
}

.product-stats strong {
    color: #fff;
    font-size: 1rem;
}

.product-stats span {
    margin-top: 0.1rem;
    color: #91a1b8;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
}

.product-purchase {
    overflow: hidden;
    align-self: start;
    padding: 0;
    color: var(--rnp-text);
    box-shadow: 0 28px 80px rgba(0, 0, 0, 0.28);
}

.product-media {
    position: relative;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    background: #dce5f0;
}

.product-media > img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.product-media__play {
    position: absolute;
    inset: 50% auto auto 50%;
    display: grid;
    width: 3.5rem;
    height: 3.5rem;
    transform: translate(-50%, -50%);
    place-items: center;
    border: 0;
    border-radius: 50%;
    background: #fff;
    color: var(--product-blue);
    cursor: pointer;
    box-shadow: 0 12px 30px rgba(5, 17, 38, 0.3);
}

.product-media__play svg {
    width: 1.35rem;
    height: 1.35rem;
    fill: currentColor;
}

.product-purchase__body {
    display: grid;
    gap: 0.85rem;
    padding: 1.4rem;
}

.product-price {
    gap: 0.7rem;
}

.product-price strong,
.product-free-label {
    color: var(--rnp-ink);
    font-size: 1.9rem;
    font-weight: 800;
    letter-spacing: -0.04em;
}

.product-price del {
    color: var(--rnp-muted);
    font-size: 1rem;
}

.product-coupon,
.product-cart-status {
    margin: 0;
    color: var(--rnp-muted);
    font-size: 0.8rem;
}

.product-cart-status:not(:empty) {
    border-radius: 0.6rem;
    background: #edf8f3;
    padding: 0.65rem 0.75rem;
    color: var(--rnp-success);
    font-weight: 700;
}

.product-owned {
    gap: 0.5rem;
    color: var(--rnp-success);
    font-size: 0.85rem;
    font-weight: 800;
}

.product-button {
    justify-content: center;
    gap: 0.55rem;
    width: 100%;
    min-height: 3rem;
    border: 1px solid transparent;
    border-radius: 0.75rem;
    padding: 0.75rem 1rem;
    font-weight: 800;
    line-height: 1.2;
    cursor: pointer;
}

.product-button:disabled {
    cursor: wait;
    opacity: 0.65;
}

.product-button--primary {
    background: var(--product-blue);
    color: #fff;
}

.product-button--primary:hover {
    background: var(--product-blue-dark);
}

.product-button--secondary {
    border-color: var(--rnp-border);
    background: #fff;
    color: var(--rnp-ink);
}

.product-button--secondary:hover {
    border-color: var(--product-blue);
    color: var(--product-blue-dark);
}

.product-includes {
    display: grid;
    gap: 0.55rem;
    margin: 0.35rem 0 0;
    padding: 0.9rem 0 0;
    border-top: 1px solid var(--rnp-border);
    list-style: none;
}

.product-includes li {
    gap: 0.55rem;
    color: var(--rnp-muted);
    font-size: 0.77rem;
    font-weight: 600;
}

.product-detail-shell {
    padding-top: 2rem;
    padding-bottom: 5rem;
}

.product-tabs {
    position: sticky;
    top: 5rem;
    z-index: 20;
    display: flex;
    overflow-x: auto;
    border: 1px solid var(--rnp-border);
    border-radius: 1rem;
    background: rgba(255, 255, 255, 0.96);
    padding: 0.45rem;
    box-shadow: var(--rnp-shadow-card);
    scrollbar-width: thin;
    backdrop-filter: blur(16px);
}

.product-tabs button {
    flex: 1 0 auto;
    min-width: 8rem;
    border: 0;
    border-radius: 0.7rem;
    background: transparent;
    padding: 0.78rem 1rem;
    color: var(--rnp-muted);
    font-weight: 800;
    cursor: pointer;
}

.product-tabs button[aria-selected="true"] {
    background: var(--rnp-ink);
    color: #fff;
}

.product-panels {
    margin-top: 1rem;
}

.product-panel {
    min-height: 22rem;
    border: 1px solid var(--rnp-border);
    border-radius: 1.25rem;
    background: #fff;
    padding: clamp(1.4rem, 4vw, 3rem);
    box-shadow: var(--rnp-shadow-card);
}

.product-panel[hidden] {
    display: none;
}

.product-panel__heading {
    margin-bottom: 2rem;
}

.product-panel__heading p {
    gap: 0.4rem;
    margin-bottom: 0.5rem;
    color: var(--product-blue-dark);
    font-size: 0.75rem;
    font-weight: 800;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.product-panel__heading h2 {
    margin: 0;
    color: var(--rnp-ink);
    font-size: clamp(1.75rem, 3vw, 2.6rem);
}

.product-prose,
.product-empty-copy {
    max-width: 72rem;
    color: #43516a;
    font-size: 0.98rem;
    line-height: 1.85;
    overflow-wrap: anywhere;
}

.product-prose--compact {
    font-size: 0.9rem;
    line-height: 1.75;
}

.product-callout {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    gap: 1rem;
    margin-top: 2rem;
    border: 1px solid #cfe4ff;
    border-radius: 1rem;
    background: #f4f9ff;
    padding: 1.25rem;
}

.product-callout > svg {
    width: 1.5rem;
    color: var(--product-blue);
}

.product-callout h3 {
    margin-bottom: 0.45rem;
    color: var(--rnp-ink);
}

.product-curriculum,
.product-exams,
.product-reviews,
.product-forums {
    display: grid;
    gap: 0.8rem;
}

.product-section {
    overflow: clip;
    border: 1px solid var(--rnp-border);
    border-radius: 0.85rem;
    background: #fbfcfe;
}

.product-section summary {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 1rem;
    padding: 1rem 1.1rem;
    color: var(--rnp-ink);
    font-weight: 800;
    cursor: pointer;
}

.product-section summary small {
    color: var(--rnp-muted);
    font-weight: 600;
}

.product-lessons {
    border-top: 1px solid var(--rnp-border);
    background: #fff;
}

.product-lesson {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto auto;
    gap: 0.75rem;
    min-height: 3.15rem;
    padding: 0.75rem 1.1rem;
    border-bottom: 1px solid #eef2f7;
    color: #42506a;
    font-size: 0.86rem;
}

.product-lesson:last-child {
    border-bottom: 0;
}

.product-lesson small {
    color: var(--rnp-muted);
}

.product-lesson button {
    border: 0;
    background: transparent;
    padding: 0;
    color: var(--product-blue-dark);
    font-weight: 800;
    cursor: pointer;
}

.product-exam-card {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    gap: 1rem;
    border: 1px solid var(--rnp-border);
    border-radius: 0.9rem;
    padding: 1rem;
}

.product-exam-card__number {
    display: grid;
    width: 2.6rem;
    height: 2.6rem;
    place-items: center;
    border-radius: 0.7rem;
    background: #eaf3ff;
    color: var(--product-blue-dark);
    font-size: 0.78rem;
    font-weight: 800;
}

.product-exam-card h3 {
    margin: 0;
    color: var(--rnp-ink);
    font-size: 0.98rem;
}

.product-exam-card p {
    margin: 0.3rem 0 0;
    color: var(--rnp-muted);
    font-size: 0.78rem;
}

.product-exam-card > a,
.product-locked {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    color: var(--product-blue-dark);
    font-size: 0.8rem;
    font-weight: 800;
}

.product-exam-card > a svg,
.product-locked svg {
    width: 1rem;
}

.product-locked {
    color: var(--rnp-muted);
}

.product-instructor {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    gap: 1.5rem;
    max-width: 60rem;
}

.product-instructor > img {
    width: 7rem;
    height: 7rem;
    border-radius: 1.2rem;
    object-fit: cover;
    background: #e8edf4;
}

.product-instructor h3 {
    margin: 0 0 0.7rem;
    color: var(--rnp-ink);
    font-size: 1.35rem;
}

.product-inline-link {
    width: max-content;
    gap: 0.4rem;
    margin-top: 1rem;
    color: var(--product-blue-dark);
    font-size: 0.82rem;
    font-weight: 800;
}

.product-review,
.product-forums > article {
    border: 1px solid var(--rnp-border);
    border-radius: 0.9rem;
    padding: 1rem 1.1rem;
}

.product-review__meta,
.product-forums > article > div:first-child {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.7rem;
}

.product-review__meta span {
    color: #f2a900;
    letter-spacing: 0.08em;
}

.product-review__meta small,
.product-forums small {
    color: var(--rnp-muted);
}

.product-review > p,
.product-forums article > p,
.product-reply p {
    margin: 0.75rem 0 0;
    color: #43516a;
    line-height: 1.7;
}

.product-reply {
    margin-top: 1rem;
    border-left: 3px solid var(--product-blue);
    background: #f5f9ff;
    padding: 0.8rem 1rem;
}

.product-reply p {
    margin-top: 0.35rem;
}

.product-empty,
.product-gate {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    gap: 1rem;
    max-width: 50rem;
    border: 1px solid var(--rnp-border);
    border-radius: 1rem;
    background: #fafcff;
    padding: 1.4rem;
}

.product-empty > svg,
.product-gate > svg {
    width: 1.7rem;
    color: var(--product-blue);
}

.product-empty h3,
.product-gate h3 {
    margin: 0;
    color: var(--rnp-ink);
}

.product-empty p,
.product-gate p {
    margin: 0.45rem 0 0;
    color: var(--rnp-muted);
}

.product-gate .product-button {
    width: max-content;
    margin-top: 1rem;
}

.product-forum-link {
    width: max-content;
    margin-top: 1rem;
}

.product-dialog {
    width: min(92vw, 62rem);
    max-height: 88vh;
    margin: auto;
    overflow: hidden;
    border: 0;
    border-radius: 1rem;
    padding: 0;
    background: #071126;
    color: #fff;
    box-shadow: 0 30px 100px rgba(0, 0, 0, 0.45);
}

.product-dialog::backdrop {
    background: rgba(2, 7, 18, 0.76);
    backdrop-filter: blur(5px);
}

.product-dialog__header {
    justify-content: space-between;
    gap: 1rem;
    min-height: 3.5rem;
    padding: 0.8rem 1rem;
}

.product-dialog__header button {
    display: grid;
    width: 2.4rem;
    height: 2.4rem;
    place-items: center;
    border: 1px solid rgba(255, 255, 255, 0.16);
    border-radius: 0.65rem;
    background: transparent;
    color: #fff;
    cursor: pointer;
}

.product-dialog video,
.product-dialog iframe {
    display: block;
    width: 100%;
    aspect-ratio: 16 / 9;
    border: 0;
    background: #000;
}

@media (max-width: 900px) {
    .product-hero__grid {
        grid-template-columns: 1fr;
    }

    .product-purchase {
        width: min(100%, 34rem);
    }
}

@media (max-width: 640px) {
    .product-hero {
        padding: 7rem 0 2.5rem;
    }

    .product-hero h1 {
        font-size: clamp(2rem, 11vw, 3rem);
    }

    .product-stats {
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .product-tabs {
        top: 4.5rem;
        margin-inline: -0.35rem;
    }

    .product-tabs button {
        min-width: 7.2rem;
    }

    .product-panel {
        min-height: 18rem;
    }

    .product-section summary,
    .product-lesson,
    .product-exam-card,
    .product-instructor,
    .product-empty,
    .product-gate {
        grid-template-columns: 1fr;
    }

    .product-lesson > svg,
    .product-exam-card__number {
        display: none;
    }

    .product-exam-card > a,
    .product-locked {
        justify-self: start;
    }
}

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