.services-section {

    padding: calc(var(--header-height) + var(--space-3xl)) 0 var(--space-5xl);
    background-color: var(--white);
    background-image: var(--surface-halo);
}

.section-header.services-page-intro h1 {
    font-size: var(--text-hero);
    letter-spacing: var(--tracking-tight);
    color: var(--color-forest);
    margin-bottom: var(--space-md);
}

.section-header.services-page-intro h1.animate-on-scroll {
    transition-delay: 0.1s;
}

.services-layout {
    display: grid;
    grid-template-columns: 240px 1fr;
    gap: var(--space-3xl);
    align-items: start;
}

.services-sidebar {
    position: sticky;
    top: calc(var(--header-height) + var(--space-xl));
    max-height: calc(100vh - var(--header-height) - var(--space-3xl));
    overflow-y: auto;

    overscroll-behavior: contain;

    scroll-behavior: auto;
    scrollbar-width: none;
}

.services-sidebar::-webkit-scrollbar {
    display: none;
}

.sticky-nav {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.nav-group {
    padding-bottom: var(--space-md);
}

.nav-group + .nav-group {
    border-top: 1px solid var(--border-subtle);
    padding-top: var(--space-md);
}

.nav-group-inner {
    position: relative;
}

.nav-group-inner::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(
        to bottom,
        var(--green-400) 0%,
        var(--green-400) 30%,
        color-mix(in srgb, var(--green-400) 28%, transparent) 100%
    );
    border-radius: 0 1.5px 1.5px 0;
    transform: scaleY(0);
    transform-origin: top center;
    transition: transform var(--duration-medium) var(--ease-scroll);
}

.nav-group-inner:has(.nav-link.is-active)::before {
    transform: scaleY(1);
}

.nav-link {
    display: block;
    font-size: var(--text-sm);
    font-weight: var(--weight-semibold);
    color: var(--fg2);
    text-decoration: none;
    padding: var(--space-xs) var(--space-md);
    border-left: 3px solid transparent;
    letter-spacing: var(--tracking-link);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    transition:
        color var(--duration-base),
        border-color var(--duration-base),
        background var(--duration-base);
}

.nav-link:hover {
    color: var(--color-forest);
    background: var(--forest-03);
}

.nav-link.is-active {
    color: var(--color-forest);
    border-left-color: transparent;
    background: var(--forest-05);
    font-weight: var(--weight-bold);
}

.sub-nav {
    list-style: none;
    padding: var(--space-xs) 0 0 var(--space-md);
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: var(--space-2xs);
}

.sub-nav li a {
    display: block;
    font-size: var(--text-xs);
    color: var(--fg3);
    text-decoration: none;
    padding: var(--space-2xs) var(--space-sm);
    border-radius: var(--radius-md);
    transition: color var(--duration-fast), transform var(--duration-fast);
}

.sub-nav li a:hover {
    color: var(--fg1);
}

.nav-group:has(.nav-link.is-active) .sub-nav li a {
    color: var(--fg2);
}

.service-block {
    border-top: 1px solid var(--border-subtle);
    padding: var(--space-4xl) 0;
    scroll-margin-top: var(--sticky-top, calc(var(--header-height) + var(--space-xl)));
}

.service-block-header {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: var(--space-xl);
    align-items: start;
    margin-bottom: var(--space-2xl);
}

.service-block-icon {
    font-size: var(--text-display);
    line-height: var(--leading-tight);
    color: var(--green-400);
    opacity: 0.8;
    font-variation-settings: 'FILL' 0, 'wght' 400;
    user-select: none;
}

.service-block-header h2 {
    font-size: var(--text-h2-sm);
    font-weight: var(--weight-extrabold);
    color: var(--color-forest-light);
    line-height: var(--leading-snug);
    letter-spacing: var(--tracking-tight);
    margin-bottom: var(--space-sm);
}

.service-intro {
    font-size: var(--text-body);
    color: var(--fg2);
    line-height: var(--leading-relaxed);
    max-width: 540px;
}

.service-sub-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
    margin-bottom: var(--space-2xl);
}

.service-sub-item {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
    background: var(--surface-card);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    scroll-margin-top: var(--sticky-top, calc(var(--header-height) + var(--space-xl)));

    transition:
        opacity var(--duration-base) var(--ease-scroll),
        transform var(--duration-base) var(--ease-card);
}

.service-sub-item h3 {
    font-size: var(--text-body);
    font-weight: var(--weight-bold);
    color: var(--color-forest);
    margin-bottom: 0;
    line-height: var(--leading-snug);
    letter-spacing: var(--tracking-tight);
}

.service-sub-item p {
    font-size: var(--text-body);
    color: var(--fg2);
    line-height: var(--leading-relaxed);
    margin: 0;
}

.service-sub-item.has-img {
    padding: 0;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.service-card-img {
    width: 100%;
    height: 160px;
    object-fit: cover;
    display: block;
    flex-shrink: 0;
}

@media (hover: hover) and (pointer: fine) {
    .sub-nav li a:hover {
        transform: translateX(3px);
    }
}

.service-sub-item.has-img .service-sub-body {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
    padding: var(--space-xl);
    flex: 1;
}

@keyframes anchor-flash {
    0%   { border-color: var(--green-400);      box-shadow: var(--shadow-glow-hover); }
    15%  { border-color: var(--green-400);      box-shadow: var(--shadow-glow); }
    100% { border-color: var(--border-default); box-shadow: none; }
}

.service-sub-item.is-highlighted {
    animation: anchor-flash var(--duration-flash) var(--ease-scroll) forwards;
}

@media (max-width: 840px) {
    .services-layout {
        grid-template-columns: 1fr;
        gap: 0;
    }

    .services-sidebar {
        position: sticky;
        top: var(--header-height);

        z-index: 99;
        max-height: none;
        overflow-x: auto;
        overflow-y: hidden;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
        background: var(--white);
        border-bottom: 1px solid var(--border-subtle);
        padding: var(--space-sm) 0;
        margin-inline: calc(var(--container-px) * -1);

        transition: top var(--duration-medium) var(--ease-header);
    }

    body.header-hidden .services-sidebar {
        top: 0;
    }

    .services-sidebar::-webkit-scrollbar {
        display: none;
    }

    .sticky-nav {
        flex-direction: row;
        gap: var(--space-xs);
        white-space: nowrap;
        padding-inline-start: var(--container-px);
    }

    .sticky-nav::after {
        content: '';
        min-width: var(--container-px);
        flex-shrink: 0;
    }

    .nav-group {
        padding: 0;
        display: inline-block;
    }

    .nav-group + .nav-group {
        border-top: none;
        padding-top: 0;
    }

    .nav-link {
        display: inline-flex;
        align-items: center;
        border-left: none;
        border: 1px solid var(--border-default);
        border-radius: var(--radius-pill);
        padding: var(--space-xs) var(--space-md);
        font-size: var(--text-xs);
        white-space: nowrap;
        background: transparent;
    }

    .nav-link.is-active {
        background: var(--color-forest);
        color: var(--fg-on-dark);
        border-color: var(--color-forest);
    }

    .sub-nav {
        display: none;
    }

    .service-block {
        padding: var(--space-2xl) 0;
        scroll-margin-top: var(--sticky-top, calc(var(--header-height) + var(--space-3xl)));
    }

    .service-sub-item {
        scroll-margin-top: var(--sticky-top, calc(var(--header-height) + var(--space-3xl)));
    }

    .service-block-header {
        gap: var(--space-md);
    }

    .service-block-icon {
        font-size: calc(var(--text-display) * 0.6);
    }

    .service-block-header h2 {
        font-size: calc(var(--text-h2-sm) * 0.75);
    }

    .service-sub-grid {
        grid-template-columns: 1fr;
    }

    .services-section {
        padding-top: calc(var(--header-height) + var(--space-lg));
    }

    .section-header.services-page-intro {
        margin-bottom: var(--space-sm);
    }

    .nav-group-inner::before {
        display: none;
    }

    .has-pill-nav .site-header {
        background-color: transparent;
        backdrop-filter: none;
        -webkit-backdrop-filter: none;
        border-bottom-color: transparent;
        box-shadow: none;
    }

    .has-pill-nav .site-header::before {
        content: '';
        position: absolute;
        inset: 0 0 calc(var(--pill-glass-overhang, 0px) * -1) 0;
        z-index: -1;
        background-color: var(--surface-glass);
        backdrop-filter: var(--blur-glass) var(--saturate-glass);
        -webkit-backdrop-filter: var(--blur-glass) var(--saturate-glass);
    }

    .has-pill-nav .services-sidebar {
        background: transparent;

        backdrop-filter: blur(0px);
        -webkit-backdrop-filter: blur(0px);
        z-index: 101;
        clip-path: inset(var(--pill-bar-clip, 0px) 0 0 0);
    }

    body.has-pill-nav.menu-open .services-sidebar {
        background-color: var(--surface-glass);
        backdrop-filter: var(--blur-glass) var(--saturate-glass);
        -webkit-backdrop-filter: var(--blur-glass) var(--saturate-glass);
    }

    body.has-pill-nav.menu-open .site-header::before {
        inset: 0;
        background-color: var(--surface-glass);
    }

    body.has-pill-nav.menu-open .site-header {
        background-color: var(--white);
    }

}

@media (max-width: 480px) {
    .service-block-header {
        grid-template-columns: 1fr;
        gap: var(--space-sm);
    }

    .service-block-icon {
        font-size: var(--text-h2-sm);
    }
}

@media (max-width: 380px) {
    .services-sidebar {
        margin-inline: -1.25rem;
    }

    .sticky-nav {
        padding-inline-start: 1.25rem;
    }

    .sticky-nav::after {
        min-width: 1.25rem;
    }
}