.guides-index-page,
.guide-detail-page {
    background: var(--fudi-color-page);
}

.guides-eyebrow {
    margin: 0 0 var(--fudi-space-3);
    color: var(--fudi-color-brand-hover);
    font-size: var(--fudi-text-sm);
    font-weight: 850;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.guides-library {
    overflow: hidden;
    padding: clamp(3.5rem, 8vw, 7.5rem) 0 clamp(4rem, 9vw, 8rem);
    background:
        linear-gradient(112deg, rgba(255, 255, 255, 0.96) 0 48%, rgba(239, 243, 241, 0.8) 48% 100%),
        var(--fudi-color-surface-muted);
}

.guides-library__layout {
    display: grid;
    align-items: start;
    gap: clamp(3rem, 7vw, 7rem);
}

.guides-library__intro {
    max-width: 38rem;
}

.guides-library__intro h1 {
    max-width: 13ch;
    margin: 0;
    font-size: clamp(2.7rem, 6.6vw, 5.75rem);
    font-weight: 850;
    letter-spacing: -0.055em;
    line-height: 0.98;
}

.guides-library__intro > p:not(.guides-eyebrow) {
    max-width: 36rem;
    margin: var(--fudi-space-6) 0;
    color: var(--fudi-color-text-muted);
    font-size: clamp(1.05rem, 2vw, 1.35rem);
}

.guides-library__covers {
    display: flex;
    gap: var(--fudi-space-4);
    width: calc(100% + (2 * var(--fudi-gutter)));
    margin-inline: calc(-1 * var(--fudi-gutter));
    padding: var(--fudi-space-3) var(--fudi-gutter) var(--fudi-space-6);
    overflow-x: auto;
    overscroll-behavior-inline: contain;
    scroll-padding-inline: var(--fudi-gutter);
    scroll-snap-type: inline mandatory;
    scrollbar-width: none;
}

.guides-library__covers::-webkit-scrollbar {
    display: none;
}

.guides-library__cover {
    flex: 0 0 min(78vw, 20rem);
    scroll-snap-align: start;
    scroll-snap-stop: always;
}

.guide-cover-card {
    min-width: 0;
}

.guide-cover-card__link {
    display: grid;
    gap: var(--fudi-space-4);
    color: inherit;
    text-decoration: none;
}

.guide-cover-card__visual {
    position: relative;
    display: block;
    overflow: hidden;
    aspect-ratio: 3 / 4;
    border: 1px solid rgba(255, 255, 255, 0.16);
    border-radius: var(--fudi-radius-sm);
    background: var(--fudi-color-brand-deep);
    box-shadow: var(--fudi-shadow-raised);
    isolation: isolate;
}

.guide-cover-card__visual img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 300ms ease;
}

.guide-cover-card__overlay {
    position: absolute;
    z-index: 1;
    inset: 0;
    background:
        linear-gradient(180deg, rgba(11, 11, 11, 0.08), rgba(11, 11, 11, 0.62)),
        repeating-linear-gradient(45deg, transparent 0 2.5rem, rgba(255, 255, 255, 0.08) 2.5rem 2.58rem);
}

.guide-cover-card__cover-copy {
    position: absolute;
    z-index: 2;
    inset: auto var(--fudi-space-5) var(--fudi-space-5);
    display: grid;
    gap: var(--fudi-space-2);
    color: #ffffff;
}

.guide-cover-card__category {
    font-size: var(--fudi-text-xs);
    font-weight: 800;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.guide-cover-card__cover-copy strong {
    font-size: clamp(1.25rem, 2.5vw, 2rem);
    letter-spacing: -0.035em;
    line-height: 1.08;
}

.guide-cover-card__details {
    display: grid;
    gap: var(--fudi-space-2);
    color: var(--fudi-color-text-muted);
    font-size: var(--fudi-text-sm);
    line-height: 1.5;
}

.guide-cover-card__meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--fudi-space-2);
    color: var(--fudi-color-text);
    font-size: var(--fudi-text-xs);
    font-weight: 750;
}

.guide-cover-card__link:hover .guide-cover-card__visual img {
    transform: scale(1.025);
}

.guide-cover-card__link:hover .guide-cover-card__cover-copy strong {
    text-decoration: underline;
    text-decoration-thickness: 0.08em;
    text-underline-offset: 0.12em;
}

.guides-objectives {
    padding: clamp(4rem, 8vw, 7rem) 0;
}

.guides-section-heading {
    max-width: 46rem;
    margin-bottom: var(--fudi-space-7);
}

.guides-section-heading h2,
.guides-product-cta h2,
.guide-related h2 {
    margin: 0;
    font-size: clamp(2rem, 4vw, 3.5rem);
    letter-spacing: -0.04em;
    line-height: 1.05;
}

.guides-objectives__list {
    margin: 0;
    padding: 0;
    border-top: 1px solid var(--fudi-color-border);
    list-style: none;
}

.guides-objectives__list li {
    border-bottom: 1px solid var(--fudi-color-border);
}

.guides-objectives__list a {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    align-items: center;
    gap: var(--fudi-space-5);
    padding: var(--fudi-space-6) 0;
    color: inherit;
    text-decoration: none;
}

.guides-objectives__number {
    color: var(--fudi-color-brand-hover);
    font-family: var(--fudi-font-mono);
    font-size: var(--fudi-text-sm);
}

.guides-objectives__list a > span:nth-child(2) {
    display: grid;
    gap: var(--fudi-space-2);
}

.guides-objectives__list strong {
    font-size: clamp(1.25rem, 2.5vw, 1.8rem);
    line-height: 1.2;
}

.guides-objectives__list a > span:nth-child(2) > span {
    max-width: 52rem;
    color: var(--fudi-color-text-muted);
}

.guides-objectives__arrow {
    color: var(--fudi-color-brand-hover);
    font-size: 1.75rem;
    transition: transform var(--fudi-transition-fast);
}

.guides-objectives__list a:hover .guides-objectives__arrow {
    transform: translateX(0.3rem);
}

.guides-product-cta {
    padding: clamp(4rem, 8vw, 7rem) 0;
    background: var(--fudi-color-ink);
    color: var(--fudi-color-on-ink);
}

.guides-product-cta__inner {
    display: grid;
    align-items: end;
    gap: var(--fudi-space-7);
}

.guides-product-cta .guides-eyebrow {
    color: var(--fudi-color-accent);
}

.guides-product-cta p:not(.guides-eyebrow) {
    max-width: 42rem;
    margin: var(--fudi-space-4) 0 0;
    color: var(--fudi-color-on-ink-muted);
    font-size: var(--fudi-text-lg);
}

.guides-product-cta .site-button {
    justify-self: start;
}

.guide-article__header {
    display: grid;
    align-items: center;
    gap: clamp(2rem, 6vw, 6rem);
    padding-top: clamp(2rem, 5vw, 5rem);
    padding-bottom: clamp(3rem, 7vw, 6rem);
}

.guide-article__heading h1 {
    max-width: 12ch;
    margin: 0;
    font-size: clamp(2.7rem, 7vw, 6.5rem);
    letter-spacing: -0.06em;
    line-height: 0.95;
}

.guide-article__summary {
    max-width: 42rem;
    margin: var(--fudi-space-6) 0 var(--fudi-space-4);
    color: var(--fudi-color-text-muted);
    font-size: clamp(1.1rem, 2vw, 1.4rem);
}

.guide-article__meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--fudi-space-2);
    margin: 0;
    font-size: var(--fudi-text-sm);
    font-weight: 700;
}

.guide-article__cover {
    overflow: hidden;
    max-width: 31rem;
    margin: 0 auto;
    aspect-ratio: 3 / 4;
    border-radius: var(--fudi-radius-md);
    box-shadow: var(--fudi-shadow-raised);
}

.guide-article__cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.guide-article__layout {
    display: grid;
    align-items: start;
    gap: clamp(2rem, 5vw, 5rem);
    padding-bottom: clamp(4rem, 8vw, 8rem);
}

.guide-toc {
    --guide-toc-marker-width: 2px;
}

.guide-toc--desktop {
    display: none;
}

.guide-toc--mobile {
    margin-bottom: var(--fudi-space-6);
    border: 1px solid var(--fudi-color-border);
    border-radius: var(--fudi-radius-md);
    background: var(--fudi-color-surface);
}

.guide-toc > p,
.guide-toc summary {
    margin: 0;
    font-weight: 850;
}

.guide-toc summary {
    padding: var(--fudi-space-4);
    cursor: pointer;
}

.guide-toc ol {
    display: grid;
    gap: var(--fudi-space-1);
    margin: 0;
    padding: 0 var(--fudi-space-4) var(--fudi-space-4);
    list-style: none;
}

.guide-toc li {
    position: relative;
}

.guide-toc a {
    display: block;
    padding: var(--fudi-space-2) 0;
    color: var(--fudi-color-text-muted);
    font-size: var(--fudi-text-sm);
    line-height: 1.35;
    text-decoration: none;
    transition:
        color 160ms ease,
        transform 160ms ease;
}

.guide-toc a:hover {
    color: var(--fudi-color-brand-hover);
}

.guide-toc a[aria-current="location"] {
    color: var(--fudi-color-brand);
    font-weight: 800;
}

.guide-toc__level-3 {
    padding-left: var(--fudi-space-4);
}

.guide-article__main {
    min-width: 0;
    max-width: var(--fudi-copy-max);
}

.guide-prose {
    font-size: clamp(1rem, 1.3vw, 1.1rem);
}

.guide-prose h2,
.guide-prose h3 {
    scroll-margin-top: 7rem;
    letter-spacing: -0.03em;
    line-height: 1.15;
}

.guide-prose h2 {
    margin: 3.25rem 0 var(--fudi-space-4);
    font-size: clamp(1.8rem, 3vw, 2.6rem);
}

.guide-prose h2:first-child {
    margin-top: 0;
}

.guide-prose h3 {
    margin: 2.25rem 0 var(--fudi-space-3);
    font-size: clamp(1.35rem, 2vw, 1.75rem);
}

.guide-prose p,
.guide-prose ul,
.guide-prose ol,
.guide-prose blockquote,
.guide-prose pre,
.guide-prose table {
    margin: 0 0 var(--fudi-space-5);
}

.guide-prose li + li {
    margin-top: var(--fudi-space-2);
}

.guide-prose a {
    color: var(--fudi-color-brand-hover);
    font-weight: 700;
    text-underline-offset: 0.15em;
}

.guide-prose blockquote {
    padding: var(--fudi-space-4) var(--fudi-space-5);
    border-left: 0.25rem solid var(--fudi-color-brand);
    background: var(--fudi-color-surface-muted);
}

.guide-prose pre,
.guide-prose code {
    font-family: var(--fudi-font-mono);
}

.guide-prose pre {
    overflow-x: auto;
    padding: var(--fudi-space-4);
    border-radius: var(--fudi-radius-md);
    background: var(--fudi-color-ink-raised);
    color: var(--fudi-color-on-ink);
}

.guide-prose :not(pre) > code {
    padding: 0.1em 0.35em;
    border-radius: 0.3em;
    background: var(--fudi-color-surface-muted);
}

.guide-prose table {
    display: block;
    width: 100%;
    overflow-x: auto;
    border-collapse: collapse;
}

.guide-prose th,
.guide-prose td {
    min-width: 10rem;
    padding: var(--fudi-space-3);
    border: 1px solid var(--fudi-color-border);
    text-align: left;
    vertical-align: top;
}

.guide-prose th {
    background: var(--fudi-color-surface-muted);
}

.guide-prose img {
    width: 100%;
    height: auto;
    margin: var(--fudi-space-7) 0;
    border-radius: var(--fudi-radius-md);
}

.guide-related {
    margin-top: var(--fudi-space-8);
    padding: var(--fudi-space-7) 0 var(--fudi-space-4);
    border-top: 1px solid var(--fudi-color-border);
}

.guide-related h2 {
    max-width: 13ch;
    font-size: clamp(2rem, 4vw, 3.25rem);
}

.guide-related__links {
    display: grid;
    gap: var(--fudi-space-4);
    margin-top: var(--fudi-space-6);
}

.guide-related__links a {
    position: relative;
    isolation: isolate;
    overflow: hidden;
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    align-items: start;
    gap: var(--fudi-space-4);
    min-height: 10rem;
    padding: var(--fudi-space-5);
    border: 1px solid var(--fudi-color-border);
    border-radius: var(--fudi-radius-lg);
    background: var(--fudi-color-surface);
    color: inherit;
    text-decoration: none;
    box-shadow: 0 0.35rem 1.5rem rgba(11, 11, 11, 0.04);
    transition:
        border-color var(--fudi-transition-fast),
        box-shadow var(--fudi-transition-fast),
        transform var(--fudi-transition-fast);
}

.guide-related__links a::before {
    position: absolute;
    right: -3rem;
    bottom: -5rem;
    z-index: -1;
    width: 11rem;
    height: 11rem;
    border: 2rem solid rgba(0, 137, 123, 0.08);
    border-radius: 50%;
    content: "";
    transition:
        border-color var(--fudi-transition-fast),
        transform var(--fudi-transition-fast);
}

.guide-related__links a:hover {
    border-color: var(--fudi-color-brand);
    box-shadow: 0 1rem 2.5rem rgba(0, 77, 64, 0.12);
    transform: translateY(-0.25rem);
}

.guide-related__links a:hover::before {
    border-color: rgba(0, 137, 123, 0.16);
    transform: scale(1.08);
}

.guide-related__number {
    color: var(--fudi-color-brand);
    font-family: var(--fudi-font-mono);
    font-size: var(--fudi-text-xs);
    font-weight: 700;
    letter-spacing: 0.08em;
}

.guide-related__copy {
    align-self: center;
    display: grid;
    gap: var(--fudi-space-2);
}

.guide-related__copy strong {
    font-size: clamp(1.2rem, 2vw, 1.55rem);
    letter-spacing: -0.025em;
    line-height: 1.15;
}

.guide-related__copy > span {
    max-width: 25rem;
    color: var(--fudi-color-text-muted);
    font-size: var(--fudi-text-sm);
    line-height: 1.5;
}

.guide-related__arrow {
    display: grid;
    width: 2.25rem;
    height: 2.25rem;
    place-items: center;
    border: 1px solid var(--fudi-color-border);
    border-radius: 50%;
    background: var(--fudi-color-surface);
    color: var(--fudi-color-brand);
    font-size: 1.15rem;
    transition:
        background-color var(--fudi-transition-fast),
        color var(--fudi-transition-fast),
        transform var(--fudi-transition-fast);
}

.guide-related__links a:hover .guide-related__arrow {
    background: var(--fudi-color-brand);
    color: var(--fudi-color-on-ink);
    transform: translateX(0.2rem);
}

@media (min-width: 48rem) {
    .guides-product-cta__inner {
        grid-template-columns: minmax(0, 1fr) auto;
    }

    .guide-article__header {
        grid-template-columns: minmax(0, 1.15fr) minmax(18rem, 0.65fr);
    }

    .guide-related__links {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .guide-related__links a:last-child:nth-child(odd) {
        grid-column: 1 / -1;
    }
}

@media (min-width: 64rem) {
    .guides-library__layout {
        grid-template-columns: minmax(0, 0.85fr) minmax(30rem, 1.15fr);
        align-items: center;
    }

    .guides-library__covers {
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        align-items: start;
        gap: var(--fudi-space-4);
        width: auto;
        margin: 0;
        padding: var(--fudi-space-3) 0 clamp(4rem, 7vw, 6rem);
        overflow: visible;
    }

    .guides-library__cover {
        min-width: 0;
    }

    .guides-library__cover:nth-child(2) {
        transform: translateY(clamp(4rem, 7vw, 6rem));
    }

    .guides-library__cover:nth-child(3) {
        grid-column: 1;
    }

    .guide-article__layout {
        grid-template-columns: 17rem minmax(0, 1fr);
        justify-content: center;
    }

    .guide-toc--desktop {
        position: sticky;
        top: 6.5rem;
        display: block;
        max-height: calc(100vh - 8rem);
        padding-right: var(--fudi-space-3);
        overflow-y: auto;
        scrollbar-width: thin;
    }

    .guide-toc--desktop > p {
        margin-bottom: var(--fudi-space-4);
        padding-left: var(--fudi-space-5);
        font-size: var(--fudi-text-sm);
        letter-spacing: 0.01em;
    }

    .guide-toc--desktop ol {
        position: relative;
        gap: var(--fudi-space-2);
        padding: 0 0 0 var(--fudi-space-5);
    }

    .guide-toc--desktop ol::before {
        position: absolute;
        inset: 0 auto 0 0;
        width: var(--guide-toc-marker-width);
        border-radius: 999px;
        background: var(--fudi-color-border);
        content: "";
    }

    .guide-toc--desktop a {
        padding: var(--fudi-space-2) 0;
        color: var(--fudi-color-text);
        font-size: clamp(0.95rem, 1.15vw, 1.08rem);
        font-weight: 700;
        line-height: 1.28;
    }

    .guide-toc--desktop li::before {
        position: absolute;
        top: 0;
        bottom: 0;
        left: calc(var(--fudi-space-5) * -1);
        z-index: 1;
        width: var(--guide-toc-marker-width);
        border-radius: 999px;
        background: transparent;
        content: "";
        transition: background-color 160ms ease;
    }

    .guide-toc--desktop li:has(a[aria-current="location"])::before {
        background: var(--fudi-color-brand);
    }

    .guide-toc--desktop a:hover {
        color: var(--fudi-color-brand-hover);
        transform: translateX(2px);
    }

    .guide-toc--desktop a[aria-current="location"] {
        color: var(--fudi-color-brand);
    }

    .guide-toc--mobile {
        display: none;
    }
}

@media (prefers-reduced-motion: reduce) {
    .guide-toc a,
    .guide-toc--desktop li::before,
    .guide-related__links a,
    .guide-related__links a::before,
    .guide-related__arrow {
        transition: none;
    }
}

@media (max-width: 47.99rem) {
    .guides-library__intro h1,
    .guide-article__heading h1 {
        max-width: none;
    }

    .guide-cover-card__cover-copy {
        inset: auto var(--fudi-space-4) var(--fudi-space-4);
    }

    .guide-cover-card__cover-copy strong {
        font-size: 1.1rem;
    }

    .guide-cover-card__details {
        font-size: var(--fudi-text-xs);
    }

    .guides-objectives__list a {
        grid-template-columns: auto minmax(0, 1fr);
        align-items: start;
        gap: var(--fudi-space-3);
    }

    .guides-objectives__arrow {
        display: none;
    }
}