/* ==========================================================================
   thomaschatting.dev — "Departures"
   A signal/transit-flavoured theme. One webfont, system mono, no frameworks.
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Tokens
   -------------------------------------------------------------------------- */

:root {
    color-scheme: light dark;

    /* Type */
    --font-sans: "Figtree", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
    --font-mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;

    /* Fluid scale */
    --step--1: clamp(0.83rem, 0.80rem + 0.15vw, 0.92rem);
    --step-0:  clamp(1.00rem, 0.96rem + 0.20vw, 1.09rem);
    --step-1:  clamp(1.20rem, 1.12rem + 0.40vw, 1.42rem);
    --step-2:  clamp(1.44rem, 1.29rem + 0.75vw, 1.85rem);
    --step-3:  clamp(1.73rem, 1.47rem + 1.30vw, 2.40rem);
    --step-4:  clamp(2.07rem, 1.62rem + 2.25vw, 3.12rem);
    --step-5:  clamp(2.49rem, 1.70rem + 3.95vw, 4.06rem);

    /* Space */
    --space-3xs: 0.25rem;
    --space-2xs: 0.5rem;
    --space-xs:  0.75rem;
    --space-s:   1rem;
    --space-m:   1.5rem;
    --space-l:   2rem;
    --space-xl:  3rem;
    --space-2xl: 4rem;
    --space-3xl: 6rem;

    /* Measure & widths */
    --measure: 66ch;
    --width-prose: 40rem;
    --width-wide: 72rem;
    --gutter: clamp(1rem, 4vw, 2rem);

    --radius: 0.5rem;
    --radius-lg: 1rem;

    /* Light palette (warm paper + signal amber) */
    --bg: #FBFAF7;
    --bg-sunk: #F2EFE9;
    --surface: #FFFFFF;
    --ink: #12161C;
    --ink-muted: #55606D;
    --line: #E4E0D8;
    --line-strong: #948D80;
    --link: #0F4C81;
    --link-visited: #6B3FA0;
    --accent: #9A4A06;          /* accessible accent for text */
    --accent-bright: #F6C84C;   /* decorative amber */
    --on-accent: #12161C;
    --focus: #0F4C81;
    --focus-offset: #FBFAF7;
    --selection-bg: #F6C84C;
    --selection-ink: #12161C;
    --shadow: 0 1px 2px rgb(18 22 28 / 0.05), 0 8px 24px -12px rgb(18 22 28 / 0.18);
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #0C1014;
        --bg-sunk: #080B0E;
        --surface: #151B22;
        --ink: #E7ECF2;
        --ink-muted: #9BA8B6;
        --line: #212A34;
        --line-strong: #77828F;
        --link: #7FC2FF;
        --link-visited: #C9AEFF;
        --accent: #FFC247;
        --accent-bright: #FFC247;
        --on-accent: #0C1014;
        --focus: #FFC247;
        --focus-offset: #0C1014;
        --selection-bg: #FFC247;
        --selection-ink: #0C1014;
        --shadow: 0 1px 2px rgb(0 0 0 / 0.4), 0 12px 28px -14px rgb(0 0 0 / 0.7);
    }
}

@media not (prefers-reduced-motion: reduce) {
    @view-transition { navigation: auto; }
}

/* --------------------------------------------------------------------------
   2. Reset & base
   -------------------------------------------------------------------------- */

:where(*, *::before, *::after) {
    box-sizing: border-box;
    border-width: 0;
    border-style: solid;
}

html {
    font-family: var(--font-sans);
    font-size: 100%;
    line-height: 1.65;
    background-color: var(--bg);
    color: var(--ink);
    -webkit-text-size-adjust: 100%;
    text-size-adjust: 100%;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    touch-action: manipulation;
    scroll-behavior: smooth;
    scroll-padding-top: var(--space-l);
    accent-color: var(--link);
}

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after {
        animation-duration: 0.001ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.001ms !important;
    }
}

body {
    margin: 0;
    min-height: 100svh;
    font-size: var(--step-0);
    display: flex;
    flex-direction: column;
}

::selection {
    background: var(--selection-bg);
    color: var(--selection-ink);
}

:target {
    scroll-margin-block-start: var(--space-l);
}

/* --------------------------------------------------------------------------
   3. Typography
   -------------------------------------------------------------------------- */

h1, h2, h3, h4, h5, h6 {
    font-weight: 750;
    line-height: 1.15;
    letter-spacing: -0.02em;
    text-wrap: balance;
    margin: 0 0 var(--space-s);
    overflow-wrap: break-word;
}

h1 { font-size: var(--step-4); letter-spacing: -0.035em; }
h2 { font-size: var(--step-3); margin-top: var(--space-xl); }
h3 { font-size: var(--step-2); margin-top: var(--space-l); }
h4 { font-size: var(--step-1); margin-top: var(--space-m); }
h5, h6 { font-size: var(--step-0); margin-top: var(--space-m); text-transform: uppercase; letter-spacing: 0.06em; font-family: var(--font-mono); }

:is(h1, h2, h3, h4, h5, h6):first-child { margin-top: 0; }

p {
    margin: 0 0 var(--space-m);
    max-width: var(--measure);
    text-wrap: pretty;
    overflow-wrap: break-word;
    hyphens: auto;
}

strong, b { font-weight: 700; }

small { font-size: var(--step--1); }
sub, sup { font-size: 75%; line-height: 0; }

abbr[title] {
    text-decoration: underline dotted;
    text-underline-offset: 0.2em;
    cursor: help;
}

/* Links */

a {
    color: var(--link);
    text-decoration-line: underline;
    text-decoration-thickness: 0.08em;
    text-underline-offset: 0.18em;
    text-decoration-color: color-mix(in srgb, currentColor 45%, transparent);
    transition: text-decoration-color 120ms ease, color 120ms ease;
}

a:visited { color: var(--link-visited); }

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

/* Focus — one ring, everywhere, visible on both themes. */
:focus-visible {
    outline: 3px solid var(--focus);
    outline-offset: 2px;
    border-radius: 2px;
}

/* Lists */

ul, ol {
    margin: 0 0 var(--space-m);
    padding-left: 1.3em;
    max-width: var(--measure);
}

li { margin-bottom: 0.4em; }
li::marker { color: var(--ink-muted); }
li > ul, li > ol { margin-top: 0.4em; margin-bottom: 0; }

dl { margin: 0 0 var(--space-m); }

/* Blockquote */

blockquote {
    margin: var(--space-l) 0;
    padding: var(--space-2xs) 0 var(--space-2xs) var(--space-m);
    border-left: 3px solid var(--accent-bright);
    color: var(--ink-muted);
    font-size: var(--step-1);
    line-height: 1.5;
}

blockquote > :last-child { margin-bottom: 0; }

hr {
    margin: var(--space-xl) 0;
    border: 0;
    border-top: 1px solid var(--line);
    max-width: 100%;
}

/* Code */

code, kbd, samp {
    font-family: var(--font-mono);
    font-size: 0.875em;
}

:not(pre) > code {
    background: var(--bg-sunk);
    border: 1px solid var(--line);
    border-radius: 0.3em;
    padding: 0.1em 0.35em;
    white-space: break-spaces;
    word-break: break-word;
}

kbd {
    background: var(--surface);
    border: 1px solid var(--line-strong);
    border-bottom-width: 2px;
    border-radius: 0.3em;
    padding: 0.1em 0.4em;
}

pre {
    margin: 0 0 var(--space-l);
    padding: var(--space-s);
    overflow-x: auto;
    border-radius: var(--radius);
    border: 1px solid var(--line);
    background: var(--bg-sunk);
    font-size: var(--step--1);
    line-height: 1.6;
    -webkit-overflow-scrolling: touch;
}

pre > code {
    background: none;
    border: 0;
    padding: 0;
    white-space: pre;
    font-size: 1em;
}

.highlighter-rouge { margin-bottom: var(--space-l); }
.highlighter-rouge pre { margin-bottom: 0; }

/* Media */

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

img {
    border-radius: var(--radius);
    background: var(--bg-sunk);
}

iframe, .video {
    border-radius: var(--radius);
    border: 1px solid var(--line);
}

figure {
    margin: var(--space-l) 0;
    padding: 0;
}

figure img { display: block; margin-inline: auto; }

figcaption {
    margin-top: var(--space-2xs);
    font-family: var(--font-mono);
    font-size: var(--step--1);
    color: var(--ink-muted);
    text-align: center;
    text-wrap: balance;
}

/* Tables */

table {
    width: 100%;
    margin: 0 0 var(--space-l);
    border-collapse: collapse;
    font-size: var(--step--1);
    text-align: left;
}

th, td {
    padding: 0.6em 0.75em;
    border-bottom: 1px solid var(--line);
    vertical-align: top;
}

thead th {
    font-family: var(--font-mono);
    font-size: 0.85em;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--ink-muted);
    border-bottom-color: var(--line-strong);
}

/* Table wrapper for narrow screens */
.table-scroll { overflow-x: auto; }

/* --------------------------------------------------------------------------
   4. Layout
   -------------------------------------------------------------------------- */

.page-width {
    width: 100%;
    max-width: var(--width-prose);
    margin-inline: auto;
    padding-inline: var(--gutter);
}

.page-width--wide { max-width: var(--width-wide); }

.site-content {
    flex: 1 0 auto;
    padding-bottom: var(--space-xl);
}

.site-content > :last-child { margin-bottom: 0; }

main { margin-top: var(--space-m); }

.eyebrow {
    font-family: var(--font-mono);
    font-size: var(--step--1);
    text-transform: uppercase;
    letter-spacing: 0.14em;
    color: var(--ink-muted);
    margin-bottom: var(--space-2xs);
}

/* --------------------------------------------------------------------------
   5. Accessibility utilities
   -------------------------------------------------------------------------- */

.visually-hidden,
.skip-link:not(:focus) {
    position: absolute !important;
    width: 1px;
    height: 1px;
    margin: -1px;
    padding: 0;
    overflow: hidden;
    clip: rect(0 0 0 0);
    clip-path: inset(50%);
    white-space: nowrap;
    border: 0;
}

.skip-link:focus {
    position: fixed;
    top: var(--space-s);
    left: var(--space-s);
    z-index: 999;
    background: var(--accent-bright);
    color: var(--on-accent);
    border: 2px solid var(--ink);
    padding: var(--space-2xs) var(--space-s);
    border-radius: var(--radius);
    text-decoration: none;
    font-weight: 700;
    box-shadow: var(--shadow);
}

[tabindex="-1"]:focus { outline: none; }

/* --------------------------------------------------------------------------
   6. Site header
   -------------------------------------------------------------------------- */

.site-header {
    border-bottom: 1px solid var(--line);
    background: color-mix(in srgb, var(--bg) 85%, transparent);
    backdrop-filter: saturate(140%) blur(8px);
    position: sticky;
    top: 0;
    z-index: 50;
}

.site-header__inner {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-2xs) var(--space-m);
    padding-block: var(--space-xs);
}

.site-header__brand {
    font-family: var(--font-mono);
    font-weight: 700;
    font-size: var(--step-0);
    letter-spacing: -0.02em;
    color: var(--ink);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5ch;
    padding: 0.2em 0;
}

.site-header__brand::before {
    content: "";
    inline-size: 0.6em;
    block-size: 0.6em;
    border-radius: 50%;
    background: var(--accent-bright);
    flex: none;
}

.site-header__brand:hover { text-decoration: underline; text-decoration-thickness: 0.1em; }

.site-nav ul {
    display: flex;
    flex-wrap: wrap;
    gap: 0.15rem;
    list-style: none;
    margin: 0;
    padding: 0;
    max-width: none;
}

.site-nav li { margin: 0; }

.site-nav a {
    display: block;
    padding: 0.4em 0.65em;
    border-radius: var(--radius);
    font-size: var(--step--1);
    font-family: var(--font-mono);
    letter-spacing: 0.02em;
    text-decoration: none;
    color: var(--ink-muted);
}

.site-nav a:hover,
.site-nav a:focus-visible {
    color: var(--ink);
    background: var(--bg-sunk);
}

.site-nav a[aria-current="page"] {
    color: var(--ink);
    background: var(--bg-sunk);
    box-shadow: inset 0 -2px 0 var(--accent-bright);
}

/* --------------------------------------------------------------------------
   7. Breadcrumbs
   -------------------------------------------------------------------------- */

.breadcrumbs {
    padding-block: var(--space-s) 0;
    font-family: var(--font-mono);
    font-size: var(--step--1);
    color: var(--ink-muted);
}

.breadcrumbs a { color: var(--ink-muted); }
.breadcrumbs a:hover { color: var(--link); }
.breadcrumbs .current-page { color: var(--ink); }

/* --------------------------------------------------------------------------
   8. Post
   -------------------------------------------------------------------------- */

.post__header {
    margin-bottom: var(--space-xs);
    font-size: var(--step-4);
}

.post__datetime {
    display: block;
    font-family: var(--font-mono);
    font-size: var(--step--1);
    color: var(--ink-muted);
    margin-bottom: var(--space-l);
    padding-bottom: var(--space-m);
    border-bottom: 1px solid var(--line);
}

.post__datetime a { color: var(--ink-muted); }

.intro { margin-bottom: var(--space-m); }

.intro__text,
.post__description {
    display: block;
    font-size: var(--step-1);
    font-weight: 500;
    line-height: 1.45;
    color: var(--ink-muted);
    text-wrap: pretty;
    max-width: var(--measure);
}

.heading-link {
    text-decoration: none;
    color: var(--ink-muted);
    opacity: 0;
    font-weight: 400;
}

.heading-link::after { content: " #"; }

:is(h1, h2, h3, h4):hover .heading-link,
.heading-link:focus-visible { opacity: 1; }

@media (hover: none) {
    .heading-link { opacity: 0.55; }
}

.post__footer {
    border-top: 1px solid var(--line);
    padding-top: var(--space-l);
    margin-top: var(--space-2xl);
}

.post__footer h2 {
    margin-top: 0;
    font-family: var(--font-mono);
    font-size: var(--step-0);
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--ink-muted);
    font-weight: 600;
}

/* --------------------------------------------------------------------------
   9. Components
   -------------------------------------------------------------------------- */

/* Buttons */

.button,
button,
input[type="submit"],
input[type="button"] {
    display: inline-flex;
    align-items: center;
    gap: 0.5ch;
    padding: 0.6em 1.1em;
    font: inherit;
    font-size: var(--step--1);
    font-weight: 650;
    font-family: var(--font-mono);
    letter-spacing: 0.01em;
    text-align: center;
    text-decoration: none;
    border-radius: var(--radius);
    border: 1px solid var(--line-strong);
    background: var(--surface);
    color: var(--ink);
    cursor: pointer;
    transition: transform 120ms ease, background-color 120ms ease, border-color 120ms ease;
}

.button:hover,
button:hover {
    background: var(--bg-sunk);
    border-color: var(--ink-muted);
    text-decoration: none;
}

.button:active { transform: translateY(1px); }

.button--primary {
    background: var(--accent-bright);
    border-color: var(--accent-bright);
    color: var(--on-accent);
}

.button--primary:hover {
    background: color-mix(in srgb, var(--accent-bright) 85%, var(--ink));
    border-color: color-mix(in srgb, var(--accent-bright) 85%, var(--ink));
    color: var(--on-accent);
}

/* `a:visited` (0,1,1) otherwise outranks these on specificity and overrides
   the button's text colour once a link has actually been visited — most
   visible on .button--primary, where a visited-purple can land on amber. */
a.button:visited { color: var(--ink); }
a.button--primary:visited { color: var(--on-accent); }

.button[disabled] { cursor: default; opacity: 0.5; }

/* Form controls */

input, textarea, select {
    font: inherit;
    padding: 0.5em 0.7em;
    background: var(--surface);
    color: var(--ink);
    border: 1px solid var(--line-strong);
    border-radius: var(--radius);
    max-width: 100%;
}

label, legend { display: block; margin-bottom: 0.4em; font-weight: 600; }

/* Badges */

.platform-badge,
.badge {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.7em;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    border: 1px solid var(--line-strong);
    border-radius: 999px;
    padding: 0.15em 0.7em;
    color: var(--ink-muted);
    white-space: nowrap;
    vertical-align: middle;
    letter-spacing: 0.08em;
}

/* Cards */

.card-group {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 16rem), 1fr));
    gap: var(--space-s);
    list-style: none;
    padding: 0;
    margin: 0;
    max-width: none;
}

.card {
    position: relative;
    margin: 0;
    padding: var(--space-s);
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    transition: border-color 140ms ease, transform 140ms ease;
}

.card:hover { border-color: var(--line-strong); }
.card:has(a:focus-visible) { border-color: var(--focus); }

.card__title {
    font-size: var(--step-0);
    line-height: 1.35;
    margin: 0 0 var(--space-3xs);
}

.card__title a { text-decoration: none; color: var(--ink); }
.card__title a:hover { text-decoration: underline; text-decoration-thickness: 0.1em; }

.card--clickable .card__title a::after {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: inherit;
}

.card__description {
    margin: 0;
    font-family: var(--font-mono);
    font-size: var(--step--1);
    color: var(--ink-muted);
}

/* Chevron list (kept for compatibility, restyled) */

.work__list,
.chevron-list {
    list-style: none;
    padding: 0;
    margin: 0 0 var(--space-l);
    max-width: none;
}

.chevron-card {
    position: relative;
    margin: 0;
    border-top: 1px solid var(--line);
}

.chevron-card:last-child { border-bottom: 1px solid var(--line); }

.chevron-card__wrapper {
    position: relative;
    padding: var(--space-s) var(--space-l) var(--space-s) 0;
}

.chevron-card__link { text-decoration: none; color: var(--ink); }

.chevron-card__link::after {
    content: "";
    position: absolute;
    inset: 0;
}

.chevron-card__wrapper::after {
    content: "→";
    position: absolute;
    right: 0.25rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--ink-muted);
    font-family: var(--font-mono);
    transition: transform 140ms ease, color 140ms ease;
}

.chevron-card:hover .chevron-card__wrapper::after {
    color: var(--accent);
    transform: translate(3px, -50%);
}

.chevron-card:hover .chevron-card__link { text-decoration: underline; text-decoration-thickness: 0.1em; }

/* Summary list (GDS-ish, kept) */

.summary-list {
    display: grid;
    gap: 0;
    margin: 0 0 var(--space-l);
    font-size: var(--step-0);
}

.summary-list__row {
    display: grid;
    grid-template-columns: minmax(8rem, 12rem) 1fr;
    gap: var(--space-2xs) var(--space-m);
    padding-block: var(--space-xs);
    border-bottom: 1px solid var(--line);
}

.summary-list__row:last-of-type { border-bottom: 0; }

.summary-list__key,
.summary-list__value {
    margin: 0;
    padding: 0;
}

.summary-list__key {
    font-weight: 650;
}

.summary-list__key--date {
    font-family: var(--font-mono);
    font-size: var(--step--1);
    font-weight: 400;
    color: var(--ink-muted);
    padding-top: 0.25em;
}

.summary-list__value > :last-child { margin-bottom: 0; }

.post__link {
    text-decoration: none;
    color: var(--ink);
    font-weight: 550;
}

.post__link:hover {
    color: var(--link);
    text-decoration: underline;
    text-decoration-thickness: 0.1em;
}

@media (max-width: 34rem) {
    .summary-list__row { grid-template-columns: 1fr; }
    .summary-list__key--date { padding-top: 0; }
}

/* Nav list */

.nav-list {
    list-style: none;
    padding: 0;
    margin: 0;
    max-width: none;
}

.nav-list li {
    margin: 0;
    border-bottom: 1px solid var(--line);
}

.nav-list a {
    display: block;
    padding: 0.5em 0;
    text-decoration: none;
    font-size: var(--step--1);
    font-family: var(--font-mono);
    color: var(--link);
}

.nav-list a:hover,
.nav-list a:focus-visible {
    color: var(--link);
    text-decoration: underline;
    text-decoration-thickness: 0.1em;
}

/* Callouts (used in old posts) */

.callout {
    margin: var(--space-l) 0;
    padding: var(--space-s) var(--space-m);
    border: 1px solid var(--line);
    border-left: 4px solid var(--accent-bright);
    border-radius: var(--radius);
    background: var(--bg-sunk);
    font-size: var(--step--1);
    color: var(--ink-muted);
}

.callout > :last-child { margin-bottom: 0; }

/* Photo grid (used in old posts) */

.photo-grid {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-s);
    margin: var(--space-l) 0;
}

.photo-grid img { border-radius: var(--radius); }

.float-left {
    float: left;
    margin: 0 var(--space-m) var(--space-s) 0;
    max-width: 45%;
}

.center-text { text-align: center; }
.center-text img { margin-inline: auto; }

/* End plug */

.end-plug {
    margin-top: var(--space-2xl);
    padding: var(--space-m);
    background: var(--bg-sunk);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    position: relative;
}

.end-plug::before {
    content: "say hello";
    position: absolute;
    top: 0;
    left: var(--space-m);
    transform: translateY(-50%);
    background: var(--accent-bright);
    color: var(--on-accent);
    font-family: var(--font-mono);
    font-size: var(--step--1);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    padding: 0.1em 0.6em;
    border-radius: 999px;
}

.end-plug p { margin: 0; max-width: var(--measure); }

/* App sections */

.app-section { margin-block: var(--space-2xl); scroll-margin-top: var(--space-2xl); }
.app-section h2 { display: flex; align-items: center; flex-wrap: wrap; gap: 0.6ch; }

.app-screenshot { margin: var(--space-m) 0; }

.app-screenshot img {
    max-width: 260px;
    display: block;
    border-radius: var(--radius-lg);
    border: 1px solid var(--line);
    box-shadow: var(--shadow);
}

/* Flex helpers (legacy, kept working) */

.flex-container { display: flex; gap: var(--space-m); padding: 0; margin: 0; list-style: none; }
.flex-align-end { align-items: flex-end; }
.flex-item .flex-33 { flex: 0 1 33.33%; }
.flex-item .flex-66 { flex: 0 1 66.66%; }
.flex-item .flex-50 { flex: 1 1 50%; }
.flex-item .flex-100 { flex: 1 1 100%; }

@media (max-width: 40rem) {
    .flex-container { flex-direction: column; }
    .flex-item .flex-33,
    .flex-item .flex-66,
    .flex-item .flex-50 { flex-basis: auto; }
    .flex-align-end { align-items: flex-start; }
}

/* --------------------------------------------------------------------------
   10. Home — the board
   -------------------------------------------------------------------------- */

.board {
    /* Always a dark panel, regardless of theme: it is the signage. */
    --board-bg: #0A0E12;
    --board-ink: #EEF3F8;
    --board-muted: #A3B0BE;
    --board-line: #232C36;
    --board-amber: #FFC247;
    --board-cyan: #7FD4FF;

    position: relative;
    isolation: isolate;
    background-color: var(--board-bg);
    color: var(--board-ink);
    overflow: hidden;
    padding-block: clamp(2.5rem, 8vw, 5.5rem) clamp(2rem, 6vw, 4rem);
    border-bottom: 1px solid var(--line);
}

/* Dot matrix + signal glow */
.board::before {
    content: "";
    position: absolute;
    inset: 0;
    z-index: -2;
    background-image:
        radial-gradient(circle at 1px 1px, rgb(255 255 255 / 0.08) 1px, transparent 0);
    background-size: 22px 22px;
    mask-image: radial-gradient(120% 100% at 50% 0%, #000 35%, transparent 85%);
    -webkit-mask-image: radial-gradient(120% 100% at 50% 0%, #000 35%, transparent 85%);
}

.board::after {
    content: "";
    position: absolute;
    inset: -20%;
    z-index: -1;
    pointer-events: none;
    background:
        radial-gradient(38rem 26rem at 12% -5%, rgb(255 194 71 / 0.20), transparent 62%),
        radial-gradient(34rem 24rem at 92% 108%, rgb(127 212 255 / 0.16), transparent 60%);
}

@media not (prefers-reduced-motion: reduce) {
    .board::after { animation: board-drift 28s ease-in-out infinite alternate; }
}

@keyframes board-drift {
    from { transform: translate3d(-2%, -1%, 0) scale(1); }
    to   { transform: translate3d(3%, 2%, 0) scale(1.06); }
}

.board__inner {
    width: 100%;
    max-width: var(--width-wide);
    margin-inline: auto;
    padding-inline: var(--gutter);
}

.board p a { color: var(--board-cyan); }
.board :focus-visible { outline-color: var(--board-amber); }

/* Status line */

.board__status-line {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.6ch 1.2ch;
    font-family: var(--font-mono);
    font-size: var(--step--1);
    text-transform: uppercase;
    letter-spacing: 0.14em;
    color: var(--board-muted);
    margin: 0 0 var(--space-m);
    max-width: none;
}

.board__dot {
    inline-size: 0.55em;
    block-size: 0.55em;
    border-radius: 50%;
    background: #46D07E;
    box-shadow: 0 0 0 0 rgb(70 208 126 / 0.7);
    flex: none;
}

@media not (prefers-reduced-motion: reduce) {
    .board__dot { animation: ping 2.4s ease-out infinite; }
}

@keyframes ping {
    0%   { box-shadow: 0 0 0 0 rgb(70 208 126 / 0.65); }
    70%  { box-shadow: 0 0 0 0.6em rgb(70 208 126 / 0); }
    100% { box-shadow: 0 0 0 0 rgb(70 208 126 / 0); }
}

.board__sep { color: var(--board-line); }

/* Title */

.board__title {
    font-size: var(--step-5);
    font-weight: 850;
    letter-spacing: -0.045em;
    line-height: 0.95;
    margin: 0 0 var(--space-s);
    max-width: 18ch;
}

.board__title em {
    font-style: normal;
    color: var(--board-amber);
}

.board__lede {
    font-size: var(--step-1);
    line-height: 1.45;
    color: var(--board-muted);
    max-width: 46ch;
    margin: 0 0 var(--space-m);
}

.board__lede strong { color: var(--board-ink); font-weight: 650; }

/* Rotating role — CSS only, no layout shift */

/* .rotator is the fixed window: it clips and never moves. .rotator__track is
   the part that animates — keeping the two separate means the clip region
   can't drift out of place along with the content it's supposed to mask. */
.rotator {
    display: inline-flex;
    height: 1.45em;
    overflow: hidden;
    vertical-align: bottom;
    color: var(--board-amber);
    font-weight: 650;
}

.rotator__track {
    display: flex;
    flex-direction: column;
}

.rotator__track span {
    display: block;
    height: 1.45em;
    white-space: nowrap;
}

@media not (prefers-reduced-motion: reduce) {
    .rotator__track { animation: rotate-roles 12s cubic-bezier(0.76, 0, 0.24, 1) infinite; }
}

@keyframes rotate-roles {
    0%, 18%   { transform: translateY(0); }
    25%, 43%  { transform: translateY(-1.45em); }
    50%, 68%  { transform: translateY(-2.9em); }
    75%, 93%  { transform: translateY(-4.35em); }
    100%      { transform: translateY(-5.8em); }
}

.board__now {
    display: flex;
    align-items: baseline;
    flex-wrap: wrap;
    gap: 0 0.8ch;
    font-size: var(--step-1);
    margin: 0;
    max-width: none;
    color: var(--board-muted);
}

.board__now-label {
    font-family: var(--font-mono);
    font-size: var(--step--1);
    text-transform: uppercase;
    letter-spacing: 0.14em;
}

.board__clock {
    font-variant-numeric: tabular-nums;
    color: var(--board-amber);
}

@media (min-width: 40rem) {
    .board__clock { margin-left: auto; }
}

.home-main { margin-top: 0; }

/* Departure rows */

.board__heading {
    font-family: var(--font-mono);
    font-size: var(--step--1);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.16em;
    color: var(--board-muted);
    margin: var(--space-l) 0 var(--space-2xs);
    padding-bottom: var(--space-2xs);
    border-bottom: 1px solid var(--board-line);
}

.board__list {
    list-style: none;
    margin: 0;
    padding: 0;
    max-width: none;
}

.board__row {
    margin: 0;
    border-bottom: 1px solid var(--board-line);
}

.board__link {
    display: grid;
    grid-template-columns: 3ch minmax(0, 1fr) auto;
    align-items: baseline;
    gap: 0.4rem var(--space-m);
    padding-block: var(--space-s);
    text-decoration: none;
    color: var(--board-ink);
    position: relative;
    transition: background-color 140ms ease, padding-left 140ms ease;
}

.board__link:hover,
.board__link:focus-visible {
    background: rgb(255 255 255 / 0.04);
    padding-left: 0.5rem;
    color: var(--board-ink);
}

.board__num {
    font-family: var(--font-mono);
    font-size: var(--step--1);
    color: var(--board-muted);
    font-variant-numeric: tabular-nums;
}

.board__dest {
    font-size: var(--step-2);
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.1;
}

.board__link:hover .board__dest,
.board__link:focus-visible .board__dest {
    text-decoration: underline;
    text-decoration-thickness: 0.08em;
    text-underline-offset: 0.18em;
}

.board__note {
    grid-column: 2;
    font-size: var(--step--1);
    color: var(--board-muted);
    line-height: 1.45;
    text-wrap: pretty;
}

.board__flag {
    grid-column: 3;
    grid-row: 1;
    font-family: var(--font-mono);
    font-size: var(--step--1);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--board-amber);
    white-space: nowrap;
    font-variant-numeric: tabular-nums;
}

@media (max-width: 34rem) {
    .board__link {
        grid-template-columns: 3ch minmax(0, 1fr);
    }
    .board__flag {
        grid-column: 2;
        grid-row: auto;
        color: var(--board-amber);
    }
}

/* Home sections below the board */

.home-section {
    padding-block: var(--space-2xl) 0;
}

.home-section__title {
    font-family: var(--font-mono);
    font-size: var(--step--1);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.16em;
    color: var(--ink-muted);
    margin: 0 0 var(--space-m);
    padding-bottom: var(--space-2xs);
    border-bottom: 1px solid var(--line);
}

.about-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: var(--space-m);
    align-items: start;
}

@media (min-width: 46rem) {
    .about-grid { grid-template-columns: 10rem minmax(0, 1fr); gap: var(--space-xl); }
}

.about-grid img {
    width: 10rem;
    max-width: 10rem;
    height: auto;
    padding: 0.5rem;
    border-radius: var(--radius);
    border: 1px solid var(--line-strong);
    /* The sketch is ink on white: give it paper in both themes. */
    background: #FFFFFF;
    box-shadow: var(--shadow);
}

.about-grid p:last-child { margin-bottom: 0; }

.recent-list {
    list-style: none;
    margin: 0;
    padding: 0;
    max-width: none;
}

.recent-list li {
    margin: 0;
    border-bottom: 1px solid var(--line);
}

.recent-list a {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 0.2rem var(--space-m);
    align-items: baseline;
    padding-block: var(--space-xs);
    text-decoration: none;
    color: var(--ink);
    font-weight: 550;
}

.recent-list a:hover .recent-list__title,
.recent-list a:focus-visible .recent-list__title {
    color: var(--link);
    text-decoration: underline;
    text-decoration-thickness: 0.1em;
}

.recent-list__date {
    font-family: var(--font-mono);
    font-size: var(--step--1);
    font-weight: 400;
    color: var(--ink-muted);
    font-variant-numeric: tabular-nums;
}

@media (max-width: 34rem) {
    .recent-list a { grid-template-columns: 1fr; }
}

.more-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5ch;
    margin-top: var(--space-m);
    font-family: var(--font-mono);
    font-size: var(--step--1);
    text-decoration: none;
}

.more-link:hover { text-decoration: underline; text-decoration-thickness: 0.1em; }
.more-link::after { content: "→"; transition: transform 140ms ease; }
.more-link:hover::after { transform: translateX(3px); }

/* --------------------------------------------------------------------------
   11. Footer
   -------------------------------------------------------------------------- */

.site-footer {
    flex: none;
    margin-top: 0;
    border-top: 1px solid var(--line);
    background: var(--bg-sunk);
    padding-block: var(--space-xl) var(--space-l);
    font-size: var(--step--1);
}

.site-footer__grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: var(--space-l);
}

@media (min-width: 40rem) {
    .site-footer__grid { grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr); gap: var(--space-2xl); }
}

.site-footer h2,
.site-footer h3 {
    font-family: var(--font-mono);
    font-size: var(--step--1);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.14em;
    color: var(--ink-muted);
    margin: 0 0 var(--space-2xs);
}

.site-footer p { color: var(--ink-muted); }
.site-footer p:last-child { margin-bottom: 0; }

.site-footer__colophon {
    margin-top: var(--space-xl);
    padding-top: var(--space-s);
    border-top: 1px solid var(--line);
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2xs) var(--space-m);
    align-items: center;
    justify-content: space-between;
    font-family: var(--font-mono);
    color: var(--ink-muted);
}

.site-footer__colophon p { margin: 0; }

/* --------------------------------------------------------------------------
   12. 404
   -------------------------------------------------------------------------- */

.error-page {
    display: grid;
    place-content: center;
    min-height: 70svh;
    text-align: left;
}

.error-page__code {
    font-family: var(--font-mono);
    font-size: clamp(4rem, 18vw, 9rem);
    font-weight: 700;
    line-height: 1;
    letter-spacing: -0.06em;
    color: var(--accent);
    margin: 0 0 var(--space-s);
}

details {
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: var(--space-xs) var(--space-s);
    background: var(--surface);
    margin-bottom: var(--space-m);
}

summary {
    cursor: pointer;
    font-weight: 600;
    font-family: var(--font-mono);
    font-size: var(--step--1);
}

summary:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; }

details[open] summary { margin-bottom: var(--space-2xs); }

/* --------------------------------------------------------------------------
   13. High contrast / forced colours / print
   -------------------------------------------------------------------------- */

@media (prefers-contrast: more) {
    :root {
        --ink-muted: #3A4350;
        --line: #8A8478;
        --line-strong: #40464E;
    }
    @media (prefers-color-scheme: dark) {
        :root {
            --ink-muted: #C6D0DB;
            --line: #5D6874;
            --line-strong: #A9B4C0;
        }
    }
    a { text-decoration-thickness: 0.12em; }
}

@media (forced-colors: active) {
    .board {
        background: Canvas;
        color: CanvasText;
        border: 1px solid CanvasText;
    }
    .board::before, .board::after { display: none; }
    .board__dest, .board__title { color: CanvasText; }
    .board__flag, .board__num, .board__note, .board__lede, .board__status-line { color: CanvasText; }
    .board a, .board__link { color: LinkText; }
    .button, .card, .platform-badge, .badge, details { border: 1px solid CanvasText; }
    .skip-link:focus { border: 2px solid CanvasText; }
    :focus-visible { outline: 3px solid Highlight; }
}

@media print {
    .site-header, .site-footer, .skip-link, .breadcrumbs, .end-plug, .post__footer { display: none; }
    html { font-size: 11pt; background: #fff; color: #000; }
    .board { background: #fff; color: #000; padding-block: 0; }
    .board::before, .board::after { display: none; }
    a { color: #000; text-decoration: underline; }
    a[href^="http"]::after { content: " (" attr(href) ")"; font-size: 0.8em; word-break: break-all; }
    pre, blockquote, figure { break-inside: avoid; }
}