.topbar-actions {
    gap: 24px;
}

.changelog-navigation {
    overflow: hidden;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: rgba(5, 25, 46, 0.52);
}

.changelog-nav-heading {
    display: flex;
    align-items: center;
    gap: 11px;
    min-height: 54px;
    padding: 0 16px;
    border-bottom: 1px solid var(--border);
    color: var(--text);
    font-size: 14px;
    font-weight: 700;
}

.changelog-nav-heading svg {
    width: 18px;
    fill: none;
    stroke: var(--text-soft);
    stroke-width: 1.7;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.changelog-link {
    position: relative;
    width: 100%;
    min-height: 52px;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 9px 15px 9px 26px;
    border: 0;
    border-bottom: 1px solid rgba(174, 205, 231, 0.08);
    background: transparent;
    color: var(--text-soft);
    cursor: pointer;
    text-align: left;
    transition: color 160ms ease, background 160ms ease;
}

.changelog-link:last-child {
    border-bottom: 0;
}

.changelog-link::before {
    width: 5px;
    height: 5px;
    flex: 0 0 auto;
    border-radius: 50%;
    background: var(--text-muted);
    content: "";
    transition: background 160ms ease, box-shadow 160ms ease;
}

.changelog-link span {
    display: flex;
    flex-direction: column;
    gap: 3px;
}

.changelog-link strong {
    color: inherit;
    font-size: 13px;
    font-weight: 600;
}

.changelog-link small {
    color: var(--text-muted);
    font-size: 10px;
}

.changelog-link:hover,
.changelog-link.is-active {
    background: var(--cyan-soft);
    color: var(--text);
}

.changelog-link.is-active::before {
    background: var(--cyan);
    box-shadow: 0 0 0 4px rgba(48, 185, 245, 0.12);
}

.changelog-nav-empty {
    margin: 0;
    padding: 20px 18px;
    color: var(--text-muted);
    font-size: 12px;
    line-height: 1.6;
}

.changelog-hero {
    max-width: 900px;
    margin-bottom: 52px;
}

.changelog-hero h1 {
    max-width: 780px;
    margin: 0 0 16px;
    color: var(--text);
    font-size: clamp(38px, 5vw, 58px);
    font-weight: 800;
    letter-spacing: -0.05em;
    line-height: 1.03;
}

.changelog-hero > p {
    max-width: 720px;
    margin: 0;
    color: var(--text-soft);
    font-size: 16px;
    line-height: 1.75;
}

.changelog-summary {
    display: flex;
    align-items: center;
    gap: 11px;
    margin-top: 22px;
    color: var(--text-muted);
    font-size: 12px;
}

.changelog-summary span {
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: var(--cyan);
}

.release-timeline {
    position: relative;
}

.release-timeline::before {
    position: absolute;
    top: 9px;
    bottom: 36px;
    left: 96px;
    width: 1px;
    background: linear-gradient(to bottom, var(--cyan), var(--border-strong) 20%, var(--border) 82%, transparent);
    content: "";
}

.release-block {
    position: relative;
    display: grid;
    grid-template-columns: 128px minmax(0, 1fr);
    gap: 34px;
    padding-bottom: 64px;
    scroll-margin-top: calc(var(--header-height) + 28px);
}

.release-marker {
    position: relative;
    z-index: 1;
    padding-top: 3px;
    text-align: right;
}

.release-marker::after {
    position: absolute;
    top: 7px;
    right: 25px;
    width: 11px;
    height: 11px;
    border: 3px solid var(--bg);
    border-radius: 50%;
    background: var(--cyan);
    box-shadow: 0 0 0 1px rgba(48, 185, 245, 0.45), 0 0 20px rgba(48, 185, 245, 0.32);
    content: "";
}

.release-marker strong,
.release-marker small {
    display: block;
    padding-right: 51px;
    white-space: nowrap;
}

.release-marker strong {
    color: var(--cyan);
    font: 700 12px "JetBrains Mono", monospace;
    letter-spacing: 0.02em;
}

.release-marker small {
    margin-top: 6px;
    color: var(--text-muted);
    font-size: 10px;
}

.release-content {
    min-width: 0;
    padding-bottom: 18px;
    border-top: 1px solid var(--border-strong);
}

.release-header {
    padding: 26px 0 24px;
}

.release-header h2 {
    margin: 0;
    color: var(--text);
    font-size: clamp(25px, 3vw, 34px);
    font-weight: 800;
    letter-spacing: -0.035em;
}

.release-header p {
    margin: 10px 0 0;
    color: var(--text-muted);
    font-size: 13px;
}

.release-list {
    border-bottom: 1px solid var(--border);
}

.change-section {
    padding: 24px 0 10px;
    border-top: 1px solid var(--border);
}

.change-section:first-child {
    padding-top: 0;
    border-top: 0;
}

.change-section h3 {
    margin: 0;
    color: var(--cyan);
    font: 700 12px "JetBrains Mono", monospace;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.change-row {
    display: grid;
    grid-template-columns: 84px minmax(0, 1fr);
    gap: 18px;
    align-items: start;
    padding: 17px 0;
    border-top: 1px solid var(--border);
}

.change-type {
    width: fit-content;
    min-width: 54px;
    padding: 5px 8px;
    border: 1px solid rgba(123, 222, 155, 0.28);
    border-radius: 5px;
    background: rgba(123, 222, 155, 0.08);
    color: var(--green);
    font: 700 10px "JetBrains Mono", monospace;
    text-align: center;
    letter-spacing: 0.06em;
}

.change-type.is-fix {
    border-color: rgba(255, 177, 111, 0.3);
    background: rgba(255, 177, 111, 0.08);
    color: var(--orange);
}

.change-type.is-info {
    border-color: rgba(48, 185, 245, 0.3);
    background: rgba(48, 185, 245, 0.08);
    color: var(--cyan);
}

.change-type.is-change {
    border-color: rgba(229, 144, 255, 0.3);
    background: rgba(229, 144, 255, 0.08);
    color: var(--purple);
}

.change-row p {
    margin: 0;
    color: var(--text-soft);
    font-size: 14px;
    line-height: 1.75;
}

.change-row code {
    padding: 2px 5px;
    border: 1px solid rgba(48, 185, 245, 0.16);
    border-radius: 4px;
    background: rgba(48, 185, 245, 0.08);
    color: #8bdcff;
    font: 12px "JetBrains Mono", monospace;
}

.empty-changelog {
    max-width: 760px;
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 22px;
    align-items: start;
    padding: 30px 0;
    border-top: 1px solid var(--border-strong);
    border-bottom: 1px solid var(--border);
}

.empty-changelog svg {
    width: 44px;
    height: 44px;
    padding: 10px;
    border: 1px solid var(--border-strong);
    border-radius: var(--radius-sm);
    background: var(--cyan-soft);
    fill: none;
    stroke: var(--cyan);
    stroke-width: 1.7;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.empty-changelog h2 {
    margin: 0 0 8px;
    color: var(--text);
    font-size: 22px;
}

.empty-changelog p,
.noscript-message {
    margin: 0;
    color: var(--text-soft);
    font-size: 14px;
    line-height: 1.7;
}

@media (max-width: 1100px) {
    .topbar-actions {
        gap: 17px;
    }

    .release-timeline::before {
        left: 80px;
    }

    .release-block {
        grid-template-columns: 112px minmax(0, 1fr);
        gap: 26px;
    }
}

@media (max-width: 860px) {
    .topbar-actions {
        gap: 0;
    }
}

@media (max-width: 680px) {
    .changelog-hero {
        margin-bottom: 42px;
    }

    .changelog-hero h1 {
        font-size: 38px;
    }

    .release-timeline::before {
        left: 5px;
    }

    .release-block {
        grid-template-columns: 1fr;
        gap: 12px;
        padding: 0 0 52px 30px;
    }

    .release-marker {
        text-align: left;
    }

    .release-marker::after {
        top: 5px;
        right: auto;
        left: -30px;
    }

    .release-marker strong,
    .release-marker small {
        display: inline;
        padding: 0;
    }

    .release-marker small {
        margin-left: 8px;
    }

    .release-header {
        padding-top: 21px;
    }

    .change-row {
        grid-template-columns: 1fr;
        gap: 10px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .changelog-link {
        transition: none;
    }
}