/**
 * Case study lede: the above-the-fold block, modelled on Medium's article header.
 *
 * Kept from that model: context badge, topic tags, kicker, title, deck, byline with
 * read time and date, share, hero figure. Left out: claps, responses, listen, follow,
 * overflow menu, membership prompts. None of them have anything to answer to here.
 */

.cs-lede {
    max-width: 44rem;
    margin: 0 auto clamp(2.5rem, 6vh, 4.5rem);
    padding-inline: clamp(0rem, 2vw, 1.5rem);
}

/* Context badge. Medium puts the member-star here; this says who the work was for. */
.cs-lede-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    margin: 0 0 1.5rem;
    padding: 0.3rem 0.8rem;
    border: 1px solid var(--color-border);
    border-radius: 9999px;
    background: var(--color-surface-muted);
    font-family: var(--font-sans);
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.04em;
    color: var(--color-text-light);
}

.cs-lede-badge::before {
    content: '';
    width: 0.4rem;
    height: 0.4rem;
    border-radius: 50%;
    background: var(--color-accent);
}

.cs-lede-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin: 0 0 1.75rem;
    padding: 0;
    list-style: none;
}

.cs-lede-tag {
    padding: 0.32rem 0.75rem;
    border: 1px solid var(--color-border);
    border-radius: 9999px;
    font-family: var(--font-sans);
    font-size: 0.75rem;
    color: var(--color-text-light);
    white-space: nowrap;
}

.cs-lede-kicker {
    margin: 0 0 0.75rem;
    font-family: var(--font-sans);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--color-text-light);
}

.cs-lede-title {
    margin: 0 0 0.9rem;
    font-family: var(--font-serif);
    font-size: clamp(2rem, 4.4vw, 3.3rem);
    font-weight: 700;
    line-height: 1.08;
    letter-spacing: -0.015em;
    color: var(--color-text);
    text-wrap: balance;
}

.cs-lede-deck {
    margin: 0 0 2rem;
    font-family: var(--font-sans);
    font-size: clamp(1.05rem, 1.7vw, 1.3rem);
    font-weight: 300;
    line-height: 1.5;
    color: var(--color-text-light);
    text-wrap: pretty;
}

/* Byline. Avatar, name, then the read time and date Medium separates with a dot. */
.cs-lede-byline {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    padding-bottom: 1.1rem;
}

.cs-lede-avatar {
    flex-shrink: 0;
    width: 2.75rem;
    height: 2.75rem;
    border-radius: 50%;
    object-fit: cover;
    object-position: center 20%;
    border: 1px solid var(--color-border);
}

.cs-lede-byline-copy {
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
    min-width: 0;
}

.cs-lede-author {
    font-family: var(--font-sans);
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--color-text);
}

.cs-lede-author-link {
    color: inherit;
    text-decoration: none;
    border-bottom: 1px solid transparent;
}

.cs-lede-author-link:hover,
.cs-lede-author-link:focus-visible {
    border-bottom-color: var(--color-accent);
}

.cs-lede-facts {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.45rem;
    font-family: var(--font-sans);
    font-size: 0.85rem;
    color: var(--color-text-light);
}

.cs-lede-facts span + span::before {
    content: '·';
    margin-right: 0.45rem;
}

.cs-lede-source-link {
    color: inherit;
    text-decoration-color: color-mix(in srgb, currentColor 55%, transparent);
    text-underline-offset: 0.18em;
}

.cs-lede-source-link:hover,
.cs-lede-source-link:focus-visible {
    color: var(--color-accent);
    text-decoration-color: currentColor;
}

.cs-lede-actions {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.cs-lede-share {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.45rem;
    min-height: 2.25rem;
    padding: 0 0.7rem;
    border: 1px solid transparent;
    border-radius: 9999px;
    background: none;
    color: var(--color-text-light);
    font-family: var(--font-sans);
    font-size: 0.85rem;
    cursor: pointer;
    transition: color 0.2s ease, border-color 0.2s ease, background-color 0.2s ease;
}

.cs-lede-share:hover,
.cs-lede-share:focus-visible {
    color: var(--color-text);
    border-color: var(--color-border);
    background: var(--color-surface-muted);
}

.cs-lede-share svg {
    width: 1.05rem;
    height: 1.05rem;
    flex-shrink: 0;
}

.cs-lede-share-label {
    display: none;
}

.cs-lede-share.is-copied .cs-lede-share-label {
    display: inline;
    color: var(--color-accent);
}

.cs-lede-rule {
    height: 1px;
    margin: 0 0 clamp(1.75rem, 4vh, 2.75rem);
    border: 0;
    background: var(--color-border);
}

/* Hero figure sits full-bleed of the reading column, as Medium's lead image does. */
.cs-lede-figure {
    margin: 0;
    width: 100%;
}

/* No forced ratio: the cover keeps its own shape, capped so it cannot eat the fold. */
.cs-lede-figure img {
    display: block;
    width: 100%;
    height: auto;
    max-height: 72vh;
    object-fit: contain;
    border-radius: 2px;
}

.cs-lede-caption {
    margin: 0.7rem 0 0;
    font-family: var(--font-sans);
    font-size: 0.8rem;
    line-height: 1.45;
    text-align: center;
    color: var(--color-text-light);
}

@media (max-width: 600px) {
    .cs-lede-byline {
        flex-wrap: wrap;
        row-gap: 0.75rem;
    }

    .cs-lede-actions {
        margin-left: 0;
        width: 100%;
    }

    .cs-lede-share {
        padding-left: 0;
    }

    .cs-lede-share-label {
        display: inline;
    }
}

@media (prefers-reduced-motion: reduce) {
    .cs-lede-share {
        transition: none;
    }
}