@import url("ANTHROPOCOASTER_VISUAL_TOKENS_v1.0.css");

@font-face {
    font-family: "Instrument Sans";
    src: url("../fonts/InstrumentSans%5Bwdth,wght%5D.woff2") format("woff2-variations");
    font-style: normal;
    font-weight: 400 700;
    font-stretch: 75% 100%;
    font-display: swap;
}

@font-face {
    font-family: "Newsreader";
    src: url("../fonts/Newsreader%5Bopsz,wght%5D.woff2") format("woff2-variations");
    font-style: normal;
    font-weight: 400 600;
    font-display: swap;
}

@font-face {
    font-family: "Newsreader";
    src: url("../fonts/Newsreader-Italic%5Bopsz,wght%5D.woff2") format("woff2-variations");
    font-style: italic;
    font-weight: 400 600;
    font-display: swap;
}

:root {
    --ac-font-ui: "Instrument Sans", Arial, sans-serif;
    --ac-font-title: "Instrument Sans", "Nimbus Sans Narrow", "Arial Narrow", Arial, sans-serif;
    --ac-font-reading: "Newsreader", "Times New Roman", "Nimbus Roman", Times, serif;
    --ac-shell: 76rem;
    /* 68 Newsreader ch at the approved desktop body size, expressed without a
       fallback-font-dependent ch unit so the grid does not shift on font swap. */
    --ac-reading: 44.625rem;
    --ac-gutter: clamp(1rem, 3vw, 2.5rem);
    --ac-space-1: 0.5rem;
    --ac-space-2: 1rem;
    --ac-space-3: 1.5rem;
    --ac-space-4: 2.5rem;
    --ac-space-5: clamp(3.5rem, 8vw, 7rem);
    --ac-radius: 0.25rem;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    /* rc.14: reserve the actual classic scrollbar gutter before first layout.
       Overlay scrollbars consume no lane space. No fixed 15px deduction. */
    scrollbar-gutter: stable;
    background: var(--ac-canvas);
    color: var(--ac-ink);
    font-size: 100%;
    scroll-behavior: smooth;
}

body {
    min-width: 20rem;
    margin: 0;
    background: var(--ac-bg);
    color: var(--ac-ink);
    font-family: var(--ac-font-reading);
    font-optical-sizing: auto;
    font-size: clamp(1.125rem, 1.08rem + 0.18vw, 1.1875rem);
    line-height: 1.55;
    text-rendering: optimizeLegibility;
}

img,
svg,
video {
    display: block;
    max-width: 100%;
    height: auto;
}

button,
input,
textarea,
select {
    font: inherit;
}

a {
    color: var(--ac-accent);
    text-decoration-thickness: 0.08em;
    text-underline-offset: 0.18em;
}

a:hover {
    text-decoration-thickness: 0.14em;
}

:focus-visible {
    outline: 0.19rem solid var(--ac-accent-secondary);
    outline-offset: 0.2rem;
}

::selection {
    background: var(--ac-accent);
    color: var(--ac-text-on-dark);
}

.ac-skip-link {
    position: fixed;
    z-index: 1000;
    top: 0.75rem;
    left: 0.75rem;
    padding: 0.65rem 0.85rem;
    transform: translateY(-200%);
    background: var(--ac-bg);
    color: var(--ac-ink);
    font-family: var(--ac-font-ui);
    font-size: 0.875rem;
    font-weight: 650;
}

.ac-skip-link:focus {
    transform: translateY(0);
}

.ac-main {
    min-height: 60vh;
}

.ac-main:focus {
    outline: none;
}

.ac-shell {
    width: min(100% - (2 * var(--ac-gutter)), var(--ac-shell));
    margin-inline: auto;
    padding-block: var(--ac-space-5);
}

.ac-reading-width {
    width: min(100% - (2 * var(--ac-gutter)), var(--ac-reading));
    margin-inline: auto;
}

.ac-site-header {
    padding: 1rem var(--ac-gutter) clamp(2rem, 5vw, 4.5rem);
    background: var(--ac-ink);
    color: var(--ac-text-on-dark);
    container-type: inline-size;
}

.ac-site-header__inner {
    display: flex;
    width: min(100%, var(--ac-shell));
    min-height: 3rem;
    margin-inline: auto;
    align-items: center;
    gap: 1.25rem;
}

.ac-brand {
    display: block;
    flex: 0 1 26rem;
    min-width: 0;
}

.ac-brand__wordmark {
    width: min(100%, 26rem);
}

.ac-brand__compact {
    display: none;
    width: 5.375rem;
}

.ac-site-header__panel {
    display: flex;
    margin-left: auto;
    align-items: center;
    gap: 1rem;
}

.ac-nav-list {
    display: flex;
    margin: 0;
    padding: 0;
    align-items: center;
    gap: 1.25rem;
    list-style: none;
}

.ac-nav-list__link,
.ac-search,
.ac-menu-toggle {
    color: var(--ac-text-on-dark);
    font-family: var(--ac-font-ui);
    font-size: 0.75rem;
    font-weight: 620;
    letter-spacing: 0.06em;
    text-decoration: none;
    text-transform: uppercase;
}

.ac-nav-list__link {
    display: inline-flex;
    min-height: 2.75rem;
    align-items: center;
}

.ac-nav-list__item--current .ac-nav-list__link {
    color: var(--ac-accent-light);
}

.ac-search,
.ac-menu-toggle {
    min-width: 2.75rem;
    min-height: 2.75rem;
    padding: 0.55rem 0.75rem;
    border: 1px solid var(--ac-accent-light);
    border-radius: var(--ac-radius);
    background: transparent;
    cursor: pointer;
}

.ac-search:hover,
.ac-menu-toggle:hover {
    background: var(--ac-accent);
}

.ac-menu-toggle {
    display: none;
    margin-left: auto;
}

.ac-site-header__descriptors {
    display: grid;
    width: min(100%, var(--ac-shell));
    margin: clamp(2.5rem, 6vw, 6rem) auto 0;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 2rem;
    border-top: 1px solid color-mix(in srgb, var(--ac-text-on-dark) 35%, transparent);
    padding-top: 1.25rem;
}

.ac-site-header__descriptors p {
    max-width: 30ch;
    margin: 0;
    color: var(--ac-text-on-dark);
    font-family: var(--ac-font-reading);
    font-size: clamp(1.35rem, 1rem + 1.2vw, 2.15rem);
    line-height: 1.1;
}

.ac-site-header__descriptors p:last-child {
    justify-self: end;
}

.ac-section-heading {
    margin-bottom: clamp(2rem, 4vw, 4rem);
    border-bottom: 1px solid var(--ac-divider);
    padding-bottom: 1rem;
}

.ac-section-heading h1,
.ac-article__title,
.ac-page__title,
.ac-utility-card h1 {
    margin: 0;
    font-family: var(--ac-font-ui);
    font-stretch: 90%;
    font-weight: 650;
    letter-spacing: -0.035em;
}

.ac-section-heading h1 {
    font-size: clamp(2.25rem, 1.8rem + 2.3vw, 3.5rem);
    line-height: 1;
}

.ac-section-heading__description {
    max-width: 55ch;
    margin: 1rem 0 0;
    color: var(--ac-text-secondary);
    font-size: 1.15rem;
}

.ac-feed__list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: clamp(2.5rem, 5vw, 5rem) clamp(1.5rem, 4vw, 4rem);
}

.ac-card {
    min-width: 0;
}

.ac-card__image-link {
    display: block;
    margin-bottom: 1.25rem;
    overflow: hidden;
    background: var(--ac-canvas);
}

.ac-card__image {
    width: 100%;
    aspect-ratio: 4 / 3;
    object-fit: cover;
}

.ac-kicker,
.ac-meta,
.ac-card__meta,
.ac-byline,
.ac-public-tags,
.ac-pagination,
figcaption {
    font-family: var(--ac-font-ui);
}

.ac-kicker {
    color: var(--ac-accent);
    font-size: 0.75rem;
    font-weight: 680;
    letter-spacing: 0.055em;
    text-transform: uppercase;
}

.ac-card__title {
    margin: 0.65rem 0 0;
    font-family: var(--ac-font-ui);
    font-size: clamp(1.6rem, 1.3rem + 1vw, 2.15rem);
    font-stretch: 92%;
    font-weight: 630;
    letter-spacing: -0.025em;
    line-height: 1.08;
    overflow-wrap: anywhere;
}

.ac-card__title a {
    color: var(--ac-ink);
    text-decoration: none;
}

.ac-card__title a:hover {
    color: var(--ac-accent);
    text-decoration: underline;
}

.ac-card__excerpt {
    margin: 1rem 0 0;
    color: var(--ac-text-secondary);
    font-size: 1rem;
    line-height: 1.5;
}

.ac-card__meta,
.ac-byline {
    display: flex;
    margin: 1rem 0 0;
    flex-wrap: wrap;
    gap: 0.5rem 1rem;
    color: var(--ac-text-secondary);
    font-size: 0.75rem;
    line-height: 1.45;
}

.ac-card__meta a,
.ac-byline a {
    color: inherit;
}

.ac-pagination {
    display: flex;
    margin-top: var(--ac-space-5);
    align-items: center;
    justify-content: center;
    gap: 1rem;
    font-size: 0.82rem;
}

.ac-pagination__link {
    display: inline-flex;
    min-height: 2.75rem;
    padding: 0.5rem 0.75rem;
    align-items: center;
}

.ac-pagination__status {
    color: var(--ac-text-secondary);
}

.ac-article,
.ac-page {
    padding-block: var(--ac-space-5);
}

.ac-article__header,
.ac-page__header {
    margin-bottom: clamp(3rem, 7vw, 6rem);
}

.ac-article__header .ac-meta {
    display: block;
    margin: 1rem 0;
    color: var(--ac-text-secondary);
    font-size: 0.75rem;
}

.ac-article__title,
.ac-page__title {
    margin-top: 0.3rem;
    font-size: clamp(2.5rem, 1.65rem + 4vw, 3.5rem);
    line-height: 0.98;
    overflow-wrap: anywhere;
}

.ac-article__title {
    font-family: var(--ac-font-title);
}

/* Focal G9: subtype of the approved first paragraph, moved into the header.
   This is progressive enhancement: without JS the paragraph stays in the body. */
.ac-article__subtitle {
    margin: 0.85rem 0 0;
    color: var(--ac-ink);
    font-family: var(--ac-font-reading);
    font-size: clamp(1.125rem, 1.04rem + 0.3vw, 1.25rem);
    font-style: italic;
    font-weight: 400;
    line-height: 1.4;
}

.ac-article__subtitle + .ac-article__excerpt {
    margin-top: 1rem;
}

.ac-article__excerpt {
    margin: 1.5rem 0 0;
    color: var(--ac-text-secondary);
    font-size: clamp(1.25rem, 1.1rem + 0.55vw, 1.375rem);
    line-height: 1.35;
}

.ac-page__feature {
    width: min(100vw - (2 * var(--ac-gutter)), 68rem);
    margin: 2.5rem 50% 0;
    transform: translateX(-50%);
}

.ac-content {
    display: grid;
    grid-template-columns:
        [full-start] minmax(var(--ac-gutter), 1fr)
        [wide-start] minmax(0, 9rem)
        [main-start] minmax(0, var(--ac-reading)) [main-end]
        minmax(0, 9rem) [wide-end]
        minmax(var(--ac-gutter), 1fr) [full-end];
    overflow-wrap: anywhere;
}

.ac-content > * {
    grid-column: main;
    min-width: 0;
}

.ac-content > .kg-width-wide {
    grid-column: wide;
}

.ac-content > .kg-width-full {
    grid-column: full;
}

.ac-content p,
.ac-content ul,
.ac-content ol,
.ac-content blockquote,
.ac-content pre,
.ac-content table,
.ac-content figure {
    margin-block: 0 1.5em;
}

.ac-content h2,
.ac-content h3,
.ac-content h4,
.ac-content h5,
.ac-content h6 {
    margin-block: 2.2em 0.7em;
    font-family: var(--ac-font-ui);
    font-stretch: 92%;
    line-height: 1.12;
    overflow-wrap: anywhere;
}

.ac-content h2 {
    font-size: clamp(1.75rem, 1.45rem + 1vw, 1.875rem);
}

.ac-content h3 {
    font-size: 1.45rem;
}

.ac-content blockquote {
    border-left: 0.25rem solid var(--ac-accent);
    padding-left: 1.25rem;
    color: var(--ac-text-secondary);
    font-size: 1.2em;
}

.ac-content hr {
    width: 100%;
    margin-block: 3rem;
    border: 0;
    border-top: 1px solid var(--ac-divider);
}

.ac-content pre,
.ac-content code {
    font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
}

.ac-content pre {
    overflow-x: auto;
    padding: 1rem;
    background: var(--ac-ink);
    color: var(--ac-text-on-dark);
    font-size: 0.86rem;
}

.ac-content :not(pre) > code {
    border: 1px solid var(--ac-divider);
    padding: 0.08em 0.25em;
    background: var(--ac-canvas);
    font-size: 0.86em;
}

.ac-content table {
    display: block;
    width: 100%;
    overflow-x: auto;
    border-collapse: collapse;
    font-family: var(--ac-font-ui);
    font-size: 0.9rem;
}

.ac-content th,
.ac-content td {
    min-width: 8rem;
    border-bottom: 1px solid var(--ac-divider);
    padding: 0.65rem;
    text-align: left;
    vertical-align: top;
}

.ac-content iframe {
    max-width: 100%;
}

/* Preserve the authored dimensions of the locally validated video embed. */
.ac-content .kg-embed-card iframe[width="560"][height="315"] {
    height: auto;
    aspect-ratio: 560 / 315;
}

.ac-content .kg-image,
.ac-content .kg-gallery-image img {
    width: 100%;
}

.ac-content .kg-gallery-container,
.ac-content .kg-gallery-row {
    display: flex;
    gap: 0.5rem;
}

.ac-content .kg-gallery-row + .kg-gallery-row {
    margin-top: 0.5rem;
}

.ac-content .kg-gallery-image {
    flex: 1 1 0;
}

.ac-content .kg-gallery-image img {
    height: 100%;
    object-fit: cover;
}

.ac-content .kg-callout-card,
.ac-content .kg-toggle-card,
.ac-content .kg-file-card-container,
.ac-content .kg-bookmark-container {
    border: 1px solid var(--ac-divider);
    border-radius: var(--ac-radius);
    background: color-mix(in srgb, var(--ac-canvas) 56%, var(--ac-bg));
}

.ac-content .kg-callout-card,
.ac-content .kg-toggle-card {
    padding: 1rem 1.25rem;
}

.ac-content .kg-callout-card {
    display: flex;
    gap: 0.75rem;
}

.ac-content > [data-ac-context-note="b2-v7-experimental"] {
    border-inline-start-width: 0.35rem;
    font-size: 0.92rem;
}

.ac-context-anchor {
    display: none;
}

.ac-content[data-ac-context-enhanced="b2-v7-experimental"] {
    position: relative;
    align-content: start;
    min-height: var(--ac-context-min-height, auto);
}

.ac-content[data-ac-context-enhanced="b2-v7-experimental"] > [data-ac-context-note="b2-v7-experimental"][data-ac-context-layout="lateral"] {
    position: absolute;
    z-index: 1;
    grid-column: full;
    grid-row: 1;
    top: var(--ac-context-top);
    left: var(--ac-context-left);
    width: var(--ac-context-width);
    margin: 0;
}

.ac-content .kg-callout-emoji {
    flex: 0 0 auto;
}

.ac-content .kg-toggle-heading {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.ac-content .kg-toggle-heading-text {
    margin: 0;
}

.ac-content .kg-toggle-content p:last-child,
.ac-content .kg-callout-text p:last-child {
    margin-bottom: 0;
}

.ac-content .kg-file-card-container,
.ac-content .kg-bookmark-container {
    display: flex;
    padding: 1rem;
    color: var(--ac-ink);
    text-decoration: none;
}

.ac-content .kg-bookmark-container {
    align-items: stretch;
    gap: 1rem;
}

.ac-content .kg-bookmark-content {
    min-width: 0;
    flex: 1 1 auto;
}

.ac-content .kg-bookmark-title,
.ac-content .kg-file-card-title {
    font-family: var(--ac-font-ui);
    font-weight: 650;
}

.ac-content .kg-bookmark-description,
.ac-content .kg-file-card-caption {
    color: var(--ac-text-secondary);
    font-family: var(--ac-font-ui);
    font-size: 0.85rem;
}

/* Ghost core dims this text with opacity; keep the approved color legible. */
.ac-content .kg-bookmark-description {
    opacity: 1;
}

.ac-content .kg-bookmark-thumbnail {
    width: min(35%, 13rem);
    flex: 0 0 auto;
}

.ac-content .kg-bookmark-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.ac-content .kg-video-container,
.ac-content .kg-audio-card,
.ac-content .kg-file-card-container,
.ac-content .kg-embed-card {
    max-width: 100%;
}

.ac-content .kg-audio-card {
    font-family: var(--ac-font-ui);
}

.ac-content .kg-audio-card .kg-audio-time {
    color: var(--ac-text-secondary);
    opacity: 1;
}

.ac-content figcaption,
.ac-content .kg-card figcaption {
    margin-top: 0.6rem;
    color: var(--ac-text-secondary);
    font-size: 0.75rem;
    line-height: 1.45;
    text-align: center;
}

.ac-article__footer {
    margin-top: var(--ac-space-5);
    border-top: 1px solid var(--ac-divider);
    padding-top: 1rem;
}

.ac-public-tags {
    color: var(--ac-text-secondary);
    font-size: 0.8rem;
}

.ac-author-profile {
    display: grid;
    grid-template-columns: auto 1fr;
    align-items: center;
    gap: 0.75rem 1.25rem;
}

.ac-author-profile__image {
    width: 4rem;
    height: 4rem;
    grid-row: 1 / span 2;
    border-radius: 50%;
    object-fit: cover;
}

.ac-site-footer {
    border-top: 1px solid var(--ac-divider);
    background: var(--ac-canvas);
}

.ac-site-footer__inner {
    display: flex;
    width: min(100% - (2 * var(--ac-gutter)), var(--ac-shell));
    min-height: 7rem;
    margin-inline: auto;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    font-family: var(--ac-font-ui);
    font-size: 0.78rem;
}

.ac-site-footer a {
    color: var(--ac-ink);
}

.ac-utility-page {
    display: grid;
    min-height: 100vh;
    padding: var(--ac-gutter);
    place-items: center;
    background: var(--ac-canvas);
}

.ac-utility-card {
    width: min(100%, 38rem);
    border-top: 0.4rem solid var(--ac-accent);
    padding: clamp(1.5rem, 5vw, 4rem);
    background: var(--ac-bg);
}

.ac-utility-code {
    margin: 0 0 0.5rem;
    color: var(--ac-text-secondary);
    font-family: var(--ac-font-ui);
    font-size: 0.8rem;
}

.ac-text-link {
    display: inline-flex;
    min-height: 2.75rem;
    margin-top: 1.5rem;
    align-items: center;
    font-family: var(--ac-font-ui);
}

.ac-private__brand {
    width: min(100%, 23rem);
    margin-bottom: 2.5rem;
}

.ac-private__form,
.ac-private__form label {
    font-family: var(--ac-font-ui);
}

.ac-private__form label {
    display: block;
    margin-bottom: 0.45rem;
    font-size: 0.85rem;
    font-weight: 650;
}

.ac-private__controls {
    display: flex;
    gap: 0.5rem;
}

.ac-private__controls input {
    min-width: 0;
    min-height: 2.75rem;
    flex: 1 1 auto;
    border: 1px solid var(--ac-text-secondary);
    border-radius: 0;
    padding: 0.5rem 0.65rem;
    background: white;
    color: var(--ac-ink);
}

.ac-private__controls button {
    min-width: 2.75rem;
    min-height: 2.75rem;
    border: 0;
    padding: 0.5rem 1rem;
    background: var(--ac-accent);
    color: var(--ac-text-on-dark);
    cursor: pointer;
    font-weight: 650;
}

.ac-private__error {
    color: var(--ac-accent);
    font-family: var(--ac-font-ui);
    font-size: 0.85rem;
}

/* 416px wordmark + 111px expanded menu button + 20px gap, with 1px guard. */
@container (max-width: 34.25rem) {
    .ac-brand {
        flex: 0 0 5.375rem;
    }

    .ac-brand__wordmark {
        display: none;
    }

    .ac-brand__compact {
        display: block;
    }
}

@media (max-width: 52rem) {
    .ac-site-header__inner {
        flex-wrap: wrap;
    }

    .ac-site-header--menu-ready .ac-menu-toggle {
        display: inline-flex;
        align-items: center;
        justify-content: center;
    }

    .ac-site-header__panel {
        width: 100%;
        margin-left: 0;
        align-items: stretch;
        flex-direction: column;
    }

    .ac-nav-list {
        align-items: stretch;
        flex-direction: column;
        gap: 0;
    }

    .ac-nav-list__link,
    .ac-search {
        width: 100%;
        justify-content: flex-start;
    }

    .ac-search {
        border-color: color-mix(in srgb, var(--ac-text-on-dark) 42%, transparent);
    }

    .ac-site-header--menu-ready .ac-site-header__panel {
        display: none;
    }

    .ac-site-header--menu-ready .ac-site-header__panel--open {
        display: flex;
    }

    .ac-site-header__descriptors,
    .ac-feed__list {
        grid-template-columns: 1fr;
    }

    .ac-site-header__descriptors p:last-child {
        justify-self: start;
    }

    .ac-content {
        grid-template-columns:
            [full-start] var(--ac-gutter)
            [wide-start main-start] minmax(0, 1fr) [main-end wide-end]
            var(--ac-gutter) [full-end];
    }

    .ac-content .kg-bookmark-thumbnail {
        display: none;
    }
}

@media (max-width: 34rem) {
    .ac-site-footer__inner,
    .ac-private__controls {
        align-items: stretch;
        flex-direction: column;
        justify-content: center;
    }

    .ac-site-footer__inner {
        padding-block: 1.5rem;
    }

    .ac-content .kg-gallery-row {
        flex-direction: column;
    }

    .ac-author-profile {
        grid-template-columns: 1fr;
    }

    .ac-author-profile__image {
        grid-row: auto;
    }
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        transition-duration: 0.01ms !important;
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
    }
}