/*
 * "On this page" navigator (Brand Bible §7.11, docs/brand/PAGE_NAV.md).
 * Component: resources/views/components/brand/page-nav.blade.php; behaviour: amtecco-page-nav.js.
 * Forms (set by the script on [data-page-nav] as data-form): rail · ticks · pill (+ sheet on phones).
 * Animates opacity and transform only; reduced motion removes the transitions and the flash.
 */

.amtecco-page-nav {
    --page-nav-accent: var(--amtecco-paper);
    --page-nav-surface: rgba(22, 25, 28, 0.97);
    --page-nav-edge: var(--amtecco-line-strong);
    position: fixed;
    /* One layer below Ask your AI (1045), above the page and the fixed navigation. */
    z-index: 1044;
    color: var(--amtecco-paper);
    font-family: var(--amtecco-sans);
    transition: opacity var(--amtecco-motion-ui) var(--amtecco-ease-standard), transform var(--amtecco-motion-ui) var(--amtecco-ease-standard), visibility 0s linear var(--amtecco-motion-ui);
}

.amtecco-page-nav[data-accent="srt"] { --page-nav-accent: var(--amtecco-srt); }
.amtecco-page-nav[data-accent="cdn"] { --page-nav-accent: var(--amtecco-cdn); }
.amtecco-page-nav[data-accent="ai"] { --page-nav-accent: var(--amtecco-ai-text, #f05a5e); }
.amtecco-page-nav[data-accent="aplayout"] { --page-nav-accent: var(--amtecco-aplayout, #f4a934); }
.amtecco-page-nav[data-accent="fast"] { --page-nav-accent: var(--amtecco-fast, #9ae08f); }
/* TSPulse red is reserved for its identity and for alarms, so its navigator stays neutral. */

.amtecco-page-nav[hidden] {
    display: none !important;
}

/* Hidden state: invisible, unclickable and out of the tab order. */
.amtecco-page-nav[data-visible="false"] {
    visibility: hidden;
    opacity: 0;
    pointer-events: none;
    transform: translate3d(8px, 0, 0);
}

.amtecco-page-nav[data-visible="true"] {
    visibility: visible;
    transition-delay: 0s;
}

.amtecco-page-nav a {
    color: inherit;
    text-decoration: none;
}

.amtecco-page-nav :focus-visible {
    outline: 2px solid var(--page-nav-accent);
    outline-offset: 2px;
}

/* ---------- Shared panel (the list) ---------- */

.amtecco-page-nav__panel[hidden] {
    display: none;
}

.amtecco-page-nav__panel {
    min-width: 14rem;
    max-width: min(20rem, calc(100vw - 2rem));
    padding: 0.625rem 0.375rem;
    border: 1px solid var(--page-nav-edge);
    border-radius: 6px;
    background: var(--page-nav-surface);
    box-shadow: 0 1.25rem 3rem -1rem rgba(0, 0, 0, 0.8);
}

.amtecco-page-nav__head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
    padding: 0 0.625rem 0.375rem;
}

.sf-site .amtecco-page-nav__head p {
    margin: 0;
    color: var(--amtecco-steel);
    font-family: var(--amtecco-mono);
    font-size: 0.6875rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.amtecco-page-nav__close {
    display: none;
    min-height: 2.75rem;
    padding: 0 0.875rem;
    border: 1px solid var(--page-nav-edge);
    border-radius: 6px;
    background: transparent;
    color: var(--amtecco-paper);
    font: 500 0.875rem/1 var(--amtecco-sans);
}

.amtecco-page-nav__panel ol {
    display: grid;
    margin: 0;
    padding: 0;
    list-style: none;
}

.amtecco-page-nav__panel a {
    display: flex;
    align-items: center;
    min-height: 2.25rem;
    padding: 0.25rem 0.625rem;
    border-radius: 4px;
    color: var(--amtecco-paper-soft);
    font-size: 0.875rem;
    line-height: 1.3;
}

.amtecco-page-nav__panel a:hover {
    background: var(--amtecco-graphite-2);
    color: var(--amtecco-paper);
}

.amtecco-page-nav__panel a[aria-current="true"] {
    background: rgba(244, 241, 234, 0.05);
    box-shadow: inset 2px 0 0 var(--page-nav-accent);
    color: var(--amtecco-paper);
}

.amtecco-page-nav__panel .amtecco-page-nav__top {
    margin-top: 0.375rem;
    padding-top: 0.5rem;
    border-top: 1px solid var(--amtecco-line);
    border-radius: 0;
    color: var(--amtecco-steel);
    font-size: 0.8125rem;
}

/* ---------- Toggle parts, shown per form ---------- */

.amtecco-page-nav__toggle {
    display: none;
    align-items: center;
    gap: 0.5rem;
    border: 0;
    background: transparent;
    color: inherit;
    font: 500 0.8125rem/1 var(--amtecco-sans);
    cursor: pointer;
}

.amtecco-page-nav__ring,
.amtecco-page-nav__ticks {
    display: none;
}

.amtecco-page-nav__flash {
    position: absolute;
    top: 50%;
    right: 2.75rem;
    padding: 0.3rem 0.6rem;
    border: 1px solid var(--page-nav-edge);
    border-radius: 4px;
    background: var(--page-nav-surface);
    color: var(--amtecco-paper);
    font-size: 0.75rem;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transform: translateY(-50%);
    transition: opacity var(--amtecco-motion-ui) var(--amtecco-ease-standard);
}

/* ---------- Rail: wide screens with a mouse ---------- */

.amtecco-page-nav[data-form="rail"] {
    top: 7.5rem;
    right: max(1.5rem, calc((100vw - var(--amtecco-shell, 1240px)) / 2 - 15rem));
    width: 13rem;
}

.amtecco-page-nav[data-form="rail"] .amtecco-page-nav__panel {
    min-width: 0;
    max-height: calc(100vh - 10rem);
    padding: 0;
    overflow-y: auto;
    border: 0;
    background: transparent;
    box-shadow: none;
    overscroll-behavior: contain;
}

.amtecco-page-nav[data-form="rail"] .amtecco-page-nav__head {
    padding: 0 0 0.625rem 0.875rem;
}

.amtecco-page-nav[data-form="rail"] ol {
    border-left: 1px solid var(--amtecco-line);
}

.amtecco-page-nav[data-form="rail"] .amtecco-page-nav__panel a {
    min-height: 2rem;
    margin-left: -1px;
    padding-left: 0.875rem;
    border-left: 2px solid transparent;
    border-radius: 0;
    color: var(--amtecco-steel);
}

.amtecco-page-nav[data-form="rail"] .amtecco-page-nav__panel a:hover {
    background: transparent;
    color: var(--amtecco-paper);
}

.amtecco-page-nav[data-form="rail"] .amtecco-page-nav__panel a[aria-current="true"] {
    border-left-color: var(--page-nav-accent);
    background: transparent;
    box-shadow: none;
    color: var(--amtecco-paper);
}

.amtecco-page-nav[data-form="rail"] .amtecco-page-nav__top {
    border-top: 0;
    padding-left: 0.875rem;
}

/* ---------- Ticks: laptops with a mouse ---------- */

.amtecco-page-nav[data-form="ticks"] {
    top: 50%;
    right: max(0.5rem, env(safe-area-inset-right, 0px));
    transform: translate3d(0, -50%, 0);
}

.amtecco-page-nav[data-form="ticks"][data-visible="false"] {
    transform: translate3d(8px, -50%, 0);
}

.amtecco-page-nav[data-form="ticks"] .amtecco-page-nav__toggle {
    display: flex;
    padding: 0.5rem 0.25rem;
}

.amtecco-page-nav[data-form="ticks"] :is(.amtecco-page-nav__name, .amtecco-page-nav__current) {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
    white-space: nowrap;
}

.amtecco-page-nav[data-form="ticks"] .amtecco-page-nav__ticks {
    display: grid;
}

.amtecco-page-nav__ticks i {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    /* 24px tall hit area per tick (WCAG 2.5.8); the drawn line is 2px. */
    width: 1.75rem;
    height: 1.5rem;
}

.amtecco-page-nav__ticks i::after {
    width: 0.875rem;
    height: 2px;
    border-radius: 2px;
    background: var(--amtecco-steel-dark);
    content: "";
    transition: width var(--amtecco-motion-fast) var(--amtecco-ease-standard), background-color var(--amtecco-motion-fast) var(--amtecco-ease-standard);
}

.amtecco-page-nav__ticks i.is-active::after {
    width: 1.375rem;
    background: var(--page-nav-accent);
}

.amtecco-page-nav[data-form="ticks"] .amtecco-page-nav__toggle:hover .amtecco-page-nav__ticks i::after {
    background: var(--amtecco-steel);
}

.amtecco-page-nav[data-form="ticks"] .amtecco-page-nav__toggle:hover .amtecco-page-nav__ticks i.is-active::after {
    background: var(--page-nav-accent);
}

.amtecco-page-nav[data-form="ticks"] .amtecco-page-nav__panel {
    position: absolute;
    top: 50%;
    right: 2.75rem;
    transform: translateY(-50%);
}

.amtecco-page-nav[data-form="ticks"] .amtecco-page-nav__flash.is-on {
    opacity: 1;
}

.amtecco-page-nav[data-form="ticks"][data-open="true"] .amtecco-page-nav__flash {
    opacity: 0;
}

/* ---------- Pill: touch and smaller screens, above Ask your AI ---------- */

.amtecco-page-nav[data-form="pill"] {
    right: max(1rem, env(safe-area-inset-right, 0px));
    /* Ask your AI is 48px tall at 1rem from the bottom; the pill sits 12px above it. */
    bottom: calc(1rem + 3rem + 0.75rem + env(safe-area-inset-bottom, 0px));
    display: grid;
    justify-items: end;
}

.amtecco-page-nav[data-form="pill"][data-visible="false"] {
    transform: translate3d(0, 8px, 0);
}

.amtecco-page-nav[data-form="pill"] .amtecco-page-nav__toggle {
    display: inline-flex;
    min-height: 2.75rem;
    max-width: min(17rem, calc(100vw - 2rem));
    padding: 0 1rem 0 0.75rem;
    border: 1px solid var(--page-nav-edge);
    border-radius: 999px;
    background: var(--page-nav-surface);
    box-shadow: 0 0.75rem 2rem -1rem rgba(0, 0, 0, 0.8);
}

.amtecco-page-nav[data-form="pill"] .amtecco-page-nav__ring {
    position: relative;
    display: block;
    flex: none;
    width: 1.375rem;
    height: 1.375rem;
    border-radius: 50%;
    background: conic-gradient(var(--page-nav-accent) calc(var(--page-nav-progress, 0) * 1turn), var(--amtecco-graphite-2) 0);
}

.amtecco-page-nav[data-form="pill"] .amtecco-page-nav__ring::after {
    position: absolute;
    inset: 4px;
    border-radius: 50%;
    background: var(--amtecco-carbon);
    content: "";
}

/* A small "list" glyph in the middle of the ring, so the compact pill reads as contents. */
.amtecco-page-nav[data-form="pill"] .amtecco-page-nav__icon {
    position: absolute;
    z-index: 1;
    top: 50%;
    left: 50%;
    width: 0.5rem;
    height: 2px;
    border-radius: 1px;
    background: var(--amtecco-paper);
    box-shadow: 0 -3px 0 var(--amtecco-paper), 0 3px 0 var(--amtecco-paper);
    transform: translate(-50%, -50%);
}

/* While reading downwards the pill shrinks to its ring; the text stays readable to assistive tech. */
.amtecco-page-nav[data-form="pill"] :is(.amtecco-page-nav__name, .amtecco-page-nav__current) {
    max-width: 12rem;
    overflow: hidden;
    white-space: nowrap;
    opacity: 1;
    transition: max-width var(--amtecco-motion-ui) var(--amtecco-ease-standard), opacity var(--amtecco-motion-fast) var(--amtecco-ease-standard);
}

.amtecco-page-nav[data-form="pill"][data-compact="true"] :is(.amtecco-page-nav__name, .amtecco-page-nav__current) {
    max-width: 0;
    opacity: 0;
}

.amtecco-page-nav[data-form="pill"][data-compact="true"] .amtecco-page-nav__toggle {
    gap: 0;
    padding: 0 0.75rem;
}

.amtecco-page-nav[data-form="pill"] .amtecco-page-nav__name {
    color: var(--amtecco-steel);
    white-space: nowrap;
}

.amtecco-page-nav[data-form="pill"] .amtecco-page-nav__name::after {
    content: " ·";
}

.amtecco-page-nav[data-form="pill"] .amtecco-page-nav__current {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.amtecco-page-nav[data-form="pill"] .amtecco-page-nav__panel {
    order: -1;
    margin-bottom: 0.5rem;
}

/* Phones: the list opens as a bottom sheet with a Close button, "Back to top" first. */
.amtecco-page-nav[data-sheet="true"] .amtecco-page-nav__panel {
    position: fixed;
    right: 0;
    bottom: 0;
    left: 0;
    display: flex;
    flex-direction: column;
    max-width: none;
    max-height: 70dvh;
    margin: 0;
    padding: 0.75rem 0.75rem calc(1rem + env(safe-area-inset-bottom, 0px));
    overflow-y: auto;
    border-width: 1px 0 0;
    border-radius: 14px 14px 0 0;
    overscroll-behavior: contain;
}

.amtecco-page-nav[data-sheet="true"] .amtecco-page-nav__panel[hidden] {
    display: none;
}

.amtecco-page-nav[data-sheet="true"][data-open="true"] {
    /* An open sheet covers Ask your AI (1045) until it closes. */
    z-index: 1046;
}

.amtecco-page-nav[data-sheet="true"] .amtecco-page-nav__head {
    order: -2;
}

.amtecco-page-nav[data-sheet="true"] .amtecco-page-nav__close {
    display: inline-flex;
    align-items: center;
}

.amtecco-page-nav[data-sheet="true"] .amtecco-page-nav__panel a {
    min-height: 2.75rem;
    font-size: 1rem;
}

.amtecco-page-nav[data-sheet="true"] .amtecco-page-nav__top {
    order: -1;
    margin: 0 0 0.375rem;
    padding: 0 0.625rem;
    border-top: 0;
    border-bottom: 1px solid var(--amtecco-line);
}

.amtecco-page-nav[data-sheet="true"][data-open="true"]::before {
    position: fixed;
    inset: 0;
    z-index: -1;
    background: rgba(0, 0, 0, 0.5);
    content: "";
}

/* Short viewports (landscape phones, heavy zoom): no floating navigator. */
@media (max-height: 500px) {
    .amtecco-page-nav {
        display: none !important;
    }
}

/* ---------- Inline list under the hero (phones only) ---------- */

.amtecco-page-nav-inline {
    display: none;
}

@media (max-width: 767.98px) {
    .amtecco-page-nav-inline {
        display: block;
        padding-block: 1.5rem 0.5rem;
    }

    .amtecco-page-nav-inline .container {
        display: grid;
        gap: 0.5rem;
    }

    .sf-site .amtecco-page-nav-inline__title {
        margin: 0;
        color: var(--amtecco-steel);
        font-family: var(--amtecco-mono);
        font-size: 0.6875rem;
        letter-spacing: 0.1em;
        text-transform: uppercase;
    }

    .amtecco-page-nav-inline ol {
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 0 1rem;
        margin: 0;
        padding: 0.5rem 0;
        border-top: 1px solid var(--amtecco-line);
        border-bottom: 1px solid var(--amtecco-line);
        list-style: none;
        counter-reset: page-nav;
    }

    .amtecco-page-nav-inline li {
        counter-increment: page-nav;
    }

    .amtecco-page-nav-inline a {
        display: flex;
        align-items: center;
        gap: 0.5rem;
        min-height: 2.75rem;
        color: var(--amtecco-paper);
        font-size: 0.9375rem;
        text-decoration: none;
    }

    .amtecco-page-nav-inline a::before {
        color: var(--amtecco-steel-dark);
        font-family: var(--amtecco-mono);
        font-size: 0.6875rem;
        content: counter(page-nav, decimal-leading-zero);
    }
}

@media (prefers-reduced-motion: reduce) {
    .amtecco-page-nav,
    .amtecco-page-nav *,
    .amtecco-page-nav *::after {
        transition: none !important;
    }

    .amtecco-page-nav__flash {
        display: none;
    }
}