.f12-series {
    --series-ink: var(--f12-color-text-heading);
    --series-muted: #696965;
    --series-surface: #fff;
    --series-line: rgb(34 34 33 / 13%);
    --series-accent: var(--f12-color-brand-editorial);
    overflow: hidden;
    background: var(--series-surface);
    color: var(--series-ink);
}

.f12-series :where(a) {
    text-decoration: none;
}

.series-page__hero {
    position: relative;
    overflow: hidden;
    background: #111;
}

.series-page__hero img {
    animation: series-page-hero-settle 900ms var(--f12-ease-standard) both;
}

.series-page__hero::after {
    position: absolute;
    inset: auto 0 0;
    height: 24%;
    background: linear-gradient(to top, rgb(0 0 0 / 28%), transparent);
    content: "";
    pointer-events: none;
}

.series-page__overview {
    position: relative;
    padding: clamp(44px, 5vw, 72px) 24px 24px;
    background:
        radial-gradient(circle at 86% 0%, rgb(166 32 26 / 4.5%), transparent 27rem),
        var(--series-surface);
}

.series-page__overview-grid {
    width: min(100%, 1120px);
    margin-inline: auto;
    display: grid;
    grid-template-columns: minmax(0, 1.3fr) minmax(320px, 0.7fr);
    gap: clamp(56px, 7vw, 96px);
    align-items: start;
}

.series-page__copy {
    max-width: 690px;
}

.series-page__overview-grid--single {
    grid-template-columns: minmax(0, 1fr);
}

.series-page__overview-grid--single .series-page__copy {
    max-width: 800px;
}

.series-page__index {
    position: relative;
    min-width: 0;
    padding: var(--f12-space-5);
    border: 1px solid var(--series-line);
    border-radius: var(--f12-radius-3);
    background: var(--series-surface);
    box-shadow: var(--f12-shadow-1);
    color: #555550;
}

.series-page__index h2 { color: var(--series-ink); }

.series-page__index-scroll {
    --f12-scroll-fade-height: 40px;
    --f12-scroll-fade-top-height: var(--f12-space-3);
    --f12-scroll-fade-color: var(--series-surface);
    margin-top: var(--f12-space-2);
}

.series-page__index-scroll::before,
.series-page__index-scroll::after {
    inset-inline-end: 8px;
}

.series-page__index-scroll::after {
    -webkit-mask-image: linear-gradient(180deg, transparent, #000);
    mask-image: linear-gradient(180deg, transparent, #000);
}

.series-page__index ol {
    max-block-size: 310px;
    margin: 0;
    padding: 2px 8px 2px 2px;
    overflow-x: hidden;
    overflow-y: auto;
    overscroll-behavior-y: contain;
    list-style: none;
    scrollbar-width: thin;
    scrollbar-color: #b8b8b4 transparent;
    scrollbar-gutter: stable;
}

/* Explicit native scrollbar sizing keeps the scroll cue visible in WebKit. */
@supports selector(::-webkit-scrollbar) {
    .series-page__index ol {
        scrollbar-width: auto;
        scrollbar-color: auto;
    }

    .series-page__index ol::-webkit-scrollbar {
        width: 8px;
    }

    .series-page__index ol::-webkit-scrollbar-track {
        background: transparent;
    }

    .series-page__index ol::-webkit-scrollbar-thumb {
        border: 2px solid var(--series-surface);
        border-radius: 8px;
        background: #b8b8b4;
    }

    .series-page__index ol::-webkit-scrollbar-thumb:hover {
        background: var(--series-muted);
    }
}

.series-page__index li + li {
    border-top: 0;
}

.series-page__index a {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 4px;
    padding-block: var(--f12-space-1);
    color: #555550;
    font-size: .95rem;
    font-weight: var(--f12-font-weight-medium);
    line-height: 1.5;
    overflow-wrap: anywhere;
    transition: color var(--f12-duration-fast) ease;
}

.series-page__index a:focus-visible {
    outline-offset: -2px;
}

.series-page__index-ending { white-space: nowrap; }

.series-page__index [data-f12-scroll-title] { min-width: 0; }

.f12-series .series-page__index a:is(:hover, :focus-visible) { color: var(--series-accent); }

.f12-series .series-page__sessions-toggle { display: none; }

.series-page__downloads {
    display: flex;
    align-items: center;
    gap: var(--f12-space-6);
    margin-top: var(--f12-space-8);
}

.series-page__downloads > img {
    display: block;
    width: 88px;
    max-height: 120px;
    flex: 0 0 88px;
    object-fit: contain;
}

.series-page__downloads .series-page__ctas { margin-top: 0; }

.series-page__index-unavailable {
    display: block;
    padding-block: var(--f12-space-2);
    color: var(--series-muted);
    font-size: var(--f12-font-size-sm);
}

.series-page__index-unavailable small { display: block; }

.series-page__breadcrumbs {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--series-accent);
    font-size: var(--f12-font-size-2xs);
    line-height: 1.4;
    font-weight: var(--f12-font-weight-bold);
    letter-spacing: var(--f12-letter-spacing-editorial);
    text-transform: uppercase;
}

.series-page__title {
    margin-top: 0;
    color: var(--series-ink);
}

.series-page__breadcrumbs + .series-page__title { margin-top: var(--f12-space-3); }

.series-page__description {
    margin-top: var(--f12-space-4);
    display: grid;
    gap: var(--f12-space-4);
    color: var(--f12-text-style-body-muted-color);
    font-size: var(--f12-text-style-body-md-size);
    font-weight: var(--f12-text-style-body-md-font-weight);
    line-height: var(--f12-text-style-body-md-line-height);
    text-wrap: pretty;
}

.f12-series .series-page__description h3 {
    color: var(--series-ink);
    font-size: var(--f12-text-style-heading-sm-size);
    font-weight: var(--f12-text-style-heading-sm-font-weight);
    line-height: var(--f12-text-style-heading-sm-line-height);
    letter-spacing: var(--f12-text-style-heading-sm-letter-spacing);
}

.series-page__description > :first-child {
    margin-top: 0;
}

.series-page__description > :last-child {
    margin-bottom: 0;
}

.series-page__ctas {
    margin-top: var(--f12-space-8);
}

.series-page__ctas,
.series-page__actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 12px;
}

.series-page__actions {
    margin-top: var(--f12-space-6);
}

.series-page__actions > .series-page__ctas { display: contents; }

.series-page__actions-label {
    margin-right: 2px;
    color: var(--series-ink);
    font-size: var(--f12-font-size-md);
    font-weight: var(--f12-font-weight-semibold);
    white-space: nowrap;
}

.series-page__actions .f12-btn,
.series-page__ctas .f12-btn {
    min-height: 46px;
}

.series-page__platform {
    width: 46px;
    height: 46px;
    display: inline-grid;
    flex: 0 0 46px;
    place-items: center;
    border-radius: 50%;
}

.series-page__platform img {
    width: 21px;
    height: 21px;
    display: block;
}

.series-page__share-icon {
    width: 17px;
    height: 17px;
    flex: 0 0 auto;
}

.series-page__sessions-section {
    padding: var(--f12-space-6) 24px clamp(72px, 7vw, 104px);
    background: var(--series-surface);
}

.series-page__sessions-inner {
    width: min(100%, 1120px);
    margin-inline: auto;
}

.series-page__region-header {
    padding-bottom: var(--f12-space-6);
}

.f12-series .series-page__region-header h2 {
    scroll-margin-top: clamp(24px, 4vw, 64px);
    color: var(--series-ink);
}

.series-page__region + .series-page__region {
    margin-top: clamp(48px, 5vw, 68px);
}

.series-page__sessions {
    margin: 0;
    padding: 0;
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    list-style: none;
}

.series-page__session {
    padding-block: 20px;
    display: grid;
    grid-template-columns: minmax(190px, 220px) minmax(0, 1fr) auto;
    gap: 24px;
    align-items: center;
    animation: series-page-rise-in 620ms var(--f12-ease-standard) both;
    scroll-margin-top: var(--f12-space-8);
}

.series-page__sessions > .series-page__session:first-child {
    padding-top: 0;
}

.series-page__session--audio {
    grid-template-columns: minmax(190px, 220px) minmax(0, 1fr);
}

.series-page__audio {
    grid-column: 2;
    width: min(100%, 420px);
    height: 42px;
}

.series-page__session--audio .series-page__session-media {
    grid-row: span 2;
}

.series-page__scheduled {
    margin-top: var(--f12-space-3);
    color: var(--series-muted);
    font-size: var(--f12-font-size-sm);
}

.series-page__session:not(:last-child) {
    border-bottom: 1px solid var(--series-line);
}

.series-page__session-media {
    position: relative;
    display: block;
    overflow: hidden;
    aspect-ratio: 16 / 9;
    border-radius: var(--f12-radius-2);
    background: #ddd;
}

.series-page__session-media::after {
    position: absolute;
    inset: 0;
    border: 1px solid rgb(255 255 255 / 20%);
    border-radius: inherit;
    content: "";
    pointer-events: none;
}

.series-page__session-media > img:first-child {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: cover;
    transition:
        filter 550ms var(--f12-ease-standard),
        transform 550ms var(--f12-ease-standard);
}

.series-page__session:hover .series-page__session-media > img:first-child,
.series-page__session:focus-within .series-page__session-media > img:first-child {
    filter: saturate(1.08);
    transform: scale(1.035);
}

.series-page__session-content {
    min-width: 0;
}

.f12-series .series-page__session-content h3 {
    color: var(--series-ink);
}

.series-page__session-speaker,
.series-page__session-description {
    color: var(--f12-text-style-body-muted-color);
    font-size: var(--f12-text-style-body-sm-size);
    line-height: var(--f12-text-style-body-sm-line-height);
}

.series-page__session-speaker {
    margin-top: 7px;
    font-weight: var(--f12-font-weight-semibold);
}

.series-page__session-description {
    margin-top: var(--f12-space-3);
    font-weight: var(--f12-text-style-body-sm-font-weight);
}

.series-page__watch svg {
    width: 20px;
    height: 16px;
    flex: 0 0 auto;
}

@keyframes series-page-hero-settle {
    from {
        opacity: 0.45;
    }

    to {
        opacity: 1;
    }
}

@keyframes series-page-rise-in {
    from {
        opacity: 0;
        transform: translateY(18px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (prefers-reduced-motion: no-preference) {
    .series-page__index ol { scroll-behavior: smooth; }
    html {
        scroll-behavior: smooth;
    }
}

@media (prefers-reduced-motion: reduce) {
    .f12-series,
    .f12-series::before,
    .f12-series::after,
    .f12-series *,
    .f12-series *::before,
    .f12-series *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

@media (max-width: 900px) {
    .series-page__overview-grid {
        grid-template-columns: minmax(0, 1fr);
        gap: 62px;
    }

    .series-page__copy {
        max-width: none;
    }

    .series-page__session {
        grid-template-columns: minmax(170px, 220px) minmax(0, 1fr) auto;
        gap: 22px;
    }

    .series-page__session--audio {
        grid-template-columns: minmax(170px, 220px) minmax(0, 1fr);
    }
}

/* The final row fades softly into the continuation control. */
.series-page__region.has-more .series-page__sessions {
    -webkit-mask-image: linear-gradient(#000 calc(100% - 48px), transparent);
    mask-image: linear-gradient(#000 calc(100% - 48px), transparent);
}

.f12-series .series-page__session[hidden] { display: none; }

.f12-series .series-page__region.has-more .series-page__sessions-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    margin: var(--f12-space-3) auto 0;
    padding: 0;
    border: 1px solid var(--series-line);
    border-radius: 50%;
    background: var(--series-surface);
    color: var(--series-ink);
    cursor: pointer;
    transition: background var(--f12-duration-fast) ease;
}

.series-page__sessions-toggle:hover { background: var(--f12-color-surface-subtle); }
.series-page__sessions-toggle:focus-visible { outline: 2px solid var(--series-accent); outline-offset: 4px; }

.series-page__sessions-toggle-icon {
    width: .5rem;
    height: .5rem;
    border-right: 1.5px solid currentColor;
    border-bottom: 1.5px solid currentColor;
    transform: translateY(-.12rem) rotate(45deg);
}

@media (max-width: 650px) {
    .series-page__overview,
    .series-page__sessions-section {
        padding-inline: 20px;
    }

    .series-page__breadcrumbs {
        letter-spacing: 0.18em;
    }

    .series-page__actions {
        gap: 10px;
    }

    .series-page__session {
        grid-template-columns: clamp(120px, 27vw, 152px) minmax(0, 1fr);
        gap: 14px;
        align-items: start;
        padding-block: 14px;
    }

    .series-page__session-media {
        grid-column: 1;
        margin-top: 2px;
    }

    .series-page__session-media .f12-media-play--icon-only {
        --f12-media-play-icon-size: 0.68rem;
        width: 2.35rem;
        height: 2.35rem;
    }

    .series-page__session-content {
        grid-column: 2;
    }

    .series-page__session-description {
        margin-top: 7px;
    }

    .series-page__watch {
        display: none;
    }

    .series-page__audio {
        grid-column: 1 / -1;
        width: 100%;
    }

    .series-page__session--audio .series-page__session-media {
        grid-row: auto;
    }

    .series-page__session--audio .series-page__session-speaker {
        display: block;
    }

    .series-page__actions-label {
        flex-basis: 100%;
    }
}

@media (max-width: 420px) {
    .series-page__session {
        grid-template-columns: 112px minmax(0, 1fr);
        gap: 12px;
    }
}