/* ==========================================================================
   CinderTek - Services page
   Sticky in-page service navigation. Loaded only by services.html.
   Service section layouts stay in pages.css.
   ========================================================================== */

@property --nav-compact {
    syntax: "<number>";
    inherits: true;
    initial-value: 0;
}

:root {
    --services-nav-stuck-height: 6.75rem;
}

/* --------------------------------------------------------------------------
   Services nav
   -------------------------------------------------------------------------- */

.services-nav {
    --nav-compact: 0;
    --nav-pad-block: calc(1rem - var(--nav-compact) * 0.25rem);
    --nav-name-size: calc(1.125rem - var(--nav-compact) * 0.125rem);
    --nav-gap: calc(0.5rem - var(--nav-compact) * 0.125rem);

    position: sticky;
    top: var(--header-height);
    z-index: var(--z-sticky);
    margin-bottom: var(--space-8);
    padding-block: var(--nav-pad-block);
    background-color: var(--color-bg);
    border-bottom: var(--border-hairline) solid transparent;
}

.services-nav.is-sticky {
    border-bottom-color: var(--color-border-strong);
}

.services-nav__list {
    position: relative;
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    border-top: var(--border-strong);
}

.services-nav__list::after {
    content: "";
    position: absolute;
    top: -1px;
    left: 0;
    width: 100%;
    height: var(--border-hairline);
    background-color: var(--color-accent);
    transform: scaleX(var(--nav-progress, 0.2));
    transform-origin: left center;
    pointer-events: none;
}

.service-nav-item__link {
    position: relative;
    display: grid;
    align-content: start;
    gap: var(--nav-gap);
    padding: var(--nav-pad-block) var(--space-4) var(--nav-pad-block) 0;
    font-family: var(--font-display);
    font-size: var(--nav-name-size);
    font-weight: var(--fw-semibold);
    line-height: var(--lh-snug);
    letter-spacing: var(--ls-tight);
    color: var(--color-text-muted);
    transition: color var(--duration-fast) var(--ease-standard);
}

.service-nav-item__link .index {
    color: inherit;
}

.service-nav-item__name {
    position: relative;
    display: inline-block;
    max-width: 16ch;
}

.service-nav-item__name::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: -0.3em;
    height: var(--border-hairline);
    background-color: var(--color-accent);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--duration-moderate) var(--ease-out);
}

.service-nav-item.is-active .service-nav-item__link {
    color: var(--color-text);
}

.service-nav-item.is-active .service-nav-item__link .index {
    color: var(--color-link);
}

.service-nav-item.is-active .service-nav-item__name::after {
    transform: scaleX(1);
}

@media (hover: hover) {
    .service-nav-item:not(.is-active) .service-nav-item__link:hover {
        color: var(--color-text);
    }
}

/* --------------------------------------------------------------------------
   Section reveal markers
   -------------------------------------------------------------------------- */

.js .service-section:not(.is-inview) .checklist li::before {
    transform: scale(0);
}

.service-section.is-inview .checklist li::before {
    transform: scale(1);
    transition: transform var(--duration-moderate) var(--ease-out);
}

/* --------------------------------------------------------------------------
   Responsive
   -------------------------------------------------------------------------- */

@media (max-width: 1023.98px) {
    :root {
        --services-nav-stuck-height: 6.5rem;
    }

    .service-nav-item__name {
        max-width: 14ch;
    }
}

@media (max-width: 767.98px) {
    :root {
        --services-nav-stuck-height: 6rem;
    }

    .services-nav {
        --nav-pad-block: calc(0.875rem - var(--nav-compact) * 0.25rem);
        margin-bottom: var(--space-6);
    }

    .services-nav__list {
        display: flex;
        gap: 0;
        overflow-x: auto;
        overscroll-behavior-x: contain;
        scrollbar-width: none;
        scroll-snap-type: x proximity;
        -webkit-overflow-scrolling: touch;
    }

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

    .service-nav-item {
        flex: 0 0 auto;
        min-width: 11.5rem;
        scroll-snap-align: start;
    }

    .service-nav-item__name {
        max-width: none;
    }
}

@media (prefers-reduced-motion: reduce) {
    .services-nav__list::after,
    .service-nav-item__name::after,
    .service-section .checklist li::before {
        transition: none;
    }
}