.changelog-hero {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
    gap: 32px;
    padding: clamp(28px, 5vw, 54px);
    color: #fff;
    background: #080808;
    box-shadow: var(--shadow);
}

.changelog-hero .page-title { max-width: 820px; color: #fff; }
.changelog-hero .lead { max-width: 760px; color: #d8cdbb; }

.version-lockup {
    min-width: 190px;
    padding: 22px;
    color: #080808;
    background: var(--green);
}

.version-lockup span,
.version-lockup strong { display: block; }

.version-lockup span {
    font-size: .63rem;
    font-weight: 950;
    letter-spacing: .13em;
    text-transform: uppercase;
}

.version-lockup strong {
    margin-top: 4px;
    font-size: clamp(2.1rem, 5vw, 3.4rem);
    line-height: 1;
    letter-spacing: -.06em;
}

.release-jump-nav {
    display: flex;
    gap: 8px;
    overflow-x: auto;
    padding: 0 0 5px;
    scrollbar-width: thin;
}

.release-jump-nav a {
    flex: 0 0 auto;
    padding: 9px 13px;
    border: 1px solid var(--line);
    color: var(--ink);
    background: #fff;
    font-size: .72rem;
    font-weight: 950;
    text-decoration: none;
}

.release-jump-nav a:first-child {
    color: #080808;
    background: var(--green);
    border-color: var(--green-dark);
}

.release-list { display: grid; gap: 14px; }

.release-card {
    scroll-margin-top: 20px;
    overflow: hidden;
    border: 1px solid var(--line);
    background: #fff;
    box-shadow: var(--shadow);
}

.release-card > summary {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) 22px;
    align-items: center;
    gap: 18px;
    min-height: 92px;
    padding: 18px 22px;
    cursor: pointer;
    list-style: none;
}

.release-card > summary::-webkit-details-marker { display: none; }
.release-card > summary:hover { background: #f4f0e9; }
.release-card > summary:focus-visible { outline: 3px solid var(--green-dark); outline-offset: -3px; }

.release-version {
    min-width: 88px;
    padding: 10px;
    color: #080808;
    background: #d8cdbb;
    font-size: 1.2rem;
    font-weight: 1000;
    text-align: center;
}

.release-card[open] .release-version { background: var(--green); }

.release-heading strong,
.release-heading small { display: block; }

.release-heading strong { font-size: 1rem; }
.release-heading small { margin-top: 5px; color: var(--muted); font-size: .7rem; }

.release-toggle {
    width: 11px;
    height: 11px;
    border-right: 3px solid var(--ink);
    border-bottom: 3px solid var(--ink);
    transform: translateY(-3px) rotate(45deg);
    transition: transform .16s ease;
}

.release-card[open] .release-toggle { transform: translateY(3px) rotate(225deg); }

.change-list {
    display: grid;
    gap: 1px;
    margin: 0;
    padding: 1px 0 0;
    border-top: 1px solid var(--line);
    background: var(--line);
    list-style: none;
}

.change-card {
    display: grid;
    grid-template-columns: 54px minmax(0, 1fr);
    gap: 16px;
    padding: 19px 22px;
    background: #fff;
}

.change-number {
    padding-top: 2px;
    color: var(--muted);
    font-size: .68rem;
    font-weight: 950;
}

.change-card h2 { margin: 0; font-size: .94rem; }
.change-card h2 a { color: var(--ink); text-underline-offset: 3px; }
.change-card p { max-width: 850px; margin: 7px 0 0; color: var(--muted); font-size: .78rem; line-height: 1.55; }

.changelog-note {
    padding: 27px;
    border-left: 6px solid var(--green);
    background: #f0ece5;
}

.changelog-note h2 { margin: 6px 0 8px; font-size: 1.25rem; }
.changelog-note p { max-width: 850px; margin: 0; }

@media (max-width: 680px) {
    .changelog-hero { grid-template-columns: 1fr; align-items: start; padding: 28px 22px; }
    .version-lockup { min-width: 0; }
    .release-card > summary { grid-template-columns: 74px minmax(0, 1fr) 16px; gap: 10px; padding: 14px 13px; }
    .release-version { min-width: 0; padding: 9px 5px; font-size: .92rem; }
    .release-heading strong { font-size: .82rem; }
    .change-card { grid-template-columns: 42px minmax(0, 1fr); gap: 8px; padding: 16px 13px; }
}