.single-page {
    padding-block-start: 0;
}

.single-post-hero {
    position: relative;
    padding-top: calc(var(--header-height) + 3rem);
    padding-bottom: 4rem;
    background:
        radial-gradient(circle at top right, rgba(207, 160, 102, .18), transparent 22%),
        linear-gradient(135deg, #081b2f 0%, #113454 100%);
    color: var(--color-white);
}

.single-post-hero--has-image::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(4, 17, 31, .54) 0%, rgba(4, 17, 31, .84) 100%);
}

.single-post-hero .container {
    position: relative;
    z-index: 1;
}

.single-post-hero__back-link {
    display: inline-flex;
    align-items: center;
    gap: .45rem;
    margin-bottom: 1.2rem;
    color: rgba(255, 255, 255, .72);
    font-size: .76rem;
    font-weight: 800;
    letter-spacing: .16em;
    text-transform: uppercase;
    text-decoration: none;
}

.single-post-hero__back-link:hover {
    color: var(--color-accent);
}

.single-post-hero__category {
    display: inline-flex;
    align-items: center;
    min-height: 34px;
    padding: .4rem .8rem;
    border-radius: 999px;
    background: rgba(255, 255, 255, .12);
    border: 1px solid rgba(255, 255, 255, .16);
    color: rgba(255, 255, 255, .84);
    font-size: .74rem;
    font-weight: 700;
    letter-spacing: .14em;
    text-transform: uppercase;
    margin-bottom: 1rem;
}

.single-post-hero__title,
.single-post-hero__meta {
    color: var(--color-white);
}

.single-post-hero__title {
    max-width: 52rem;
    margin-bottom: 1rem;
}

.single-post-hero__meta {
    opacity: .74;
    gap: .5rem;
    display: flex;
    flex-wrap: wrap;
}

.single-post-body {
    max-width: 58rem;
    margin: 0 auto;
    padding-block: 3rem 4rem;
}

.single-post__content {
    width: 100%;
}

.entry-content {
    font-size: 1.04rem;
    line-height: 1.85;
    color: var(--color-anthracite);
}

.entry-content h2,
.entry-content h3,
.entry-content h4 {
    margin-block: 1.8em .7em;
}

.entry-content blockquote {
    padding: 1rem 1.2rem;
    border-left: 4px solid var(--color-accent);
    border-radius: 0 20px 20px 0;
    background: rgba(15, 94, 143, .05);
    color: var(--color-grey);
    font-style: italic;
}

.single-post-navigation-wrap {
    padding-bottom: 4.5rem;
}

.single-post-navigation {
    display: grid;
    gap: 1rem;
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.single-post-navigation__card {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    min-height: 12rem;
    padding: 1.6rem 1.7rem;
    border-radius: calc(var(--radius-lg) - 2px);
    text-decoration: none;
    color: var(--color-anthracite);
    background:
        linear-gradient(180deg, rgba(255, 255, 255, .96), rgba(241, 246, 250, .98)),
        radial-gradient(circle at top right, rgba(207, 160, 102, .16), transparent 40%);
    border: 1px solid rgba(12, 42, 68, .08);
    box-shadow: var(--shadow-sm);
    transition: transform .28s ease, box-shadow .28s ease, border-color .28s ease;
}

.single-post-navigation__card:hover {
    transform: translateY(-4px);
    border-color: rgba(15, 94, 143, .16);
    box-shadow: 0 26px 60px rgba(8, 27, 47, .12);
}

.single-post-navigation__card:only-child {
    grid-column: 1 / -1;
}

.single-post-navigation__card--next {
    text-align: right;
}

.single-post-navigation__eyebrow {
    display: inline-flex;
    align-items: center;
    gap: .45rem;
    margin-bottom: 1.15rem;
    color: var(--color-ocean);
    font-size: .72rem;
    font-weight: 800;
    letter-spacing: .16em;
    text-transform: uppercase;
}

.single-post-navigation__card--next .single-post-navigation__eyebrow {
    justify-content: flex-end;
}

.single-post-navigation__title {
    font-family: var(--font-heading);
    font-size: clamp(1.55rem, 3vw, 2.15rem);
    line-height: 1.08;
    letter-spacing: -.03em;
    color: var(--color-navy);
}

@media (max-width: 768px) {
    .single-post-hero {
        padding-top: calc(var(--header-height) + 2.4rem);
        padding-bottom: 3rem;
    }

    .single-post-hero__back-link {
        margin-bottom: 1rem;
        font-size: .7rem;
        letter-spacing: .12em;
    }

    .single-post-hero__category {
        margin-bottom: .8rem;
    }

    .single-post-hero__title {
        font-size: clamp(2.5rem, 11vw, 4rem);
        line-height: .98;
    }

    .single-post-body {
        padding-block: 2.2rem 3rem;
    }

    .single-post-navigation-wrap {
        padding-bottom: 3rem;
    }

    .single-post-navigation {
        grid-template-columns: 1fr;
    }

    .single-post-navigation__card,
    .single-post-navigation__card--next {
        min-height: auto;
        text-align: left;
    }

    .single-post-navigation__card--next .single-post-navigation__eyebrow {
        justify-content: flex-start;
    }
}