body[data-page="playground"] {
  /* Reading */
  --pg-body-size: 1.0625rem;     /* 17px — the article's measure is tuned to it */
  --pg-body-lh: 1.8;
  --pg-measure: 68ch;

  /* Metadata: small mono needs more contrast than the site's muted ink
     gives, so mix toward the main ink; every palette clears AA. */
  --pg-meta-ink: color-mix(in srgb, var(--ink-muted) 55%, var(--ink));
  --pg-meta-size: 0.8125rem;     /* 13px Courier Prime */
  --pg-meta-ls: 0.02em;

  /* Rhythm */
  --pg-post-pad: clamp(1.75rem, 1rem + 2.5vw, 2.5rem);
  --pg-rail: 14rem;
  --pg-rail-gap: 3.5rem;

  /* Trim — a 2px bevel (shadow edge over a lit edge) with one cool sheen */
  --pg-chrome-edge: color-mix(in srgb, var(--ink-muted) 45%, transparent);
  --pg-chrome:
    linear-gradient(90deg, transparent 6%, color-mix(in srgb, var(--accent-soft) 75%, #fff) 22%, transparent 40%),
    linear-gradient(180deg, var(--pg-chrome-edge) 0 1px, rgba(255, 255, 255, 0.85) 1px 2px);
}

/* ─── Column ───────────────────────────────────────────────── */

.pg {
  max-width: var(--max-w);
}

/* The shell swaps <main> and routes focus to its h1; keep the programmatic
   focus ring off the room's headings as the site does elsewhere. */
.pg h1[tabindex="-1"]:focus,
.pg .pg-state-heading[tabindex="-1"]:focus {
  outline: none;
}

/* One focus language for the room: a square outline in the link ink. */
.pg a:focus-visible,
.pg button:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 3px;
  border-radius: 0;
}

/* ─── Metadata (dates, labels, tags, status) ───────────────── */

.pg-item-date,
.pg-date,
.pg-kicker,
.pg-signal,
.pg-status,
.pg-item-foot,
.pg-tags,
.pg-updated,
.pg-neighbour-label,
.pg-neighbour-date,
.pg-all,
.pg-end,
.pg-button,
.pg-photo-missing,
.pg-room .hero-eyebrow {
  font-family: var(--font-mono);
  font-size: var(--pg-meta-size);
  font-weight: 400;
  font-style: normal;
  line-height: 1.5;
  letter-spacing: var(--pg-meta-ls);
  text-transform: lowercase;
  color: var(--pg-meta-ink);
}

.pg-tag::before {
  content: '#' / '';
}

/* ─── Masthead (index) ─────────────────────────────────────── */

.pg-room {
  padding-top: var(--sp-md);
  padding-bottom: var(--sp-sm);
}

.pg-room .hero-eyebrow {
  margin-bottom: var(--sp-sm);
}

.pg-room h1 {
  font-size: clamp(2.5rem, 1.6rem + 3.6vw, 3.25rem);
  font-style: italic;
  font-weight: 600;
  line-height: 1.05;
  letter-spacing: -0.015em;
  margin-bottom: var(--sp-md);
}

.pg-lede {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--ink-mid);
  max-width: 40ch;
}

/* Signal: the archive's state in words, with an LED beside it. */
.pg-signal {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  margin-top: var(--sp-lg);
}

.pg-signal-led {
  flex: none;
  margin-top: 0.5em;
  width: 0.45rem;
  height: 0.45rem;
  border-radius: 50%;
  background: var(--pg-chrome-edge);
  transition: background-color var(--ease), box-shadow var(--ease);
}

.pg-signal[data-signal="connecting"] .pg-signal-led {
  animation: pg-pulse 1.6s var(--ease-breathe) infinite;
}

.pg-signal[data-signal="online"] .pg-signal-led {
  background: radial-gradient(circle at 35% 35%, #fff 0 12%, var(--accent) 60%);
  box-shadow:
    0 0 0 0.18rem color-mix(in srgb, var(--accent-soft) 32%, transparent),
    0 0 0.7rem color-mix(in srgb, var(--accent) 55%, transparent);
}

.pg-signal[data-signal="offline"] .pg-signal-led {
  background: var(--accent-warm);
  box-shadow: 0 0 0 0.18rem color-mix(in srgb, var(--accent-warm) 24%, transparent);
}

/* ─── Index ─────────────────────────────────────────────────── */

.pg-index {
  position: relative;
}

.pg-status {
  min-height: 1.5em;
  margin: var(--sp-lg) 0 0;
}

.pg-status:empty {
  margin: 0;
  min-height: 0;
}

/* A terminal caret while the archive is being read. */
.pg-status--busy:not(:empty)::after,
.pg-button[disabled]::after {
  content: '';
  display: inline-block;
  width: 0.55em;
  height: 1.05em;
  margin-left: 0.35em;
  vertical-align: -0.18em;
  background: var(--accent);
  animation: pg-blink 1.1s steps(1, end) infinite;
}

/* Year dividers: "2026 ───────── ◇" — the label, a chrome rule, a node. */
.pg-year {
  margin-top: var(--sp-2xl);
}

.pg-years > .pg-year:first-child {
  margin-top: var(--sp-xl);
}

.pg-year-label,
.pg-end {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin: 0;
}

.pg-year-label {
  font-family: var(--font-mono);
  font-size: var(--pg-meta-size);
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: 0.06em;
  text-transform: none;
  color: var(--ink);
}

.pg-year-label::after,
.pg-end::after {
  content: '';
  flex: 1 1 auto;
  height: 2px;
  background: var(--pg-chrome);
}

.pg-year-label::before,
.pg-end::before {
  content: '';
  order: 2;
  flex: none;
  width: 0.4rem;
  height: 0.4rem;
  border: 1px solid var(--pg-chrome-edge);
  transform: rotate(45deg);
}

.pg-end {
  margin-top: var(--sp-xl);
}

.pg-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.pg-item + .pg-item {
  border-top: 1px solid var(--border-lt);
}

/* A post. The whole post is the link; it never lifts or boxes itself. */
.pg-item-link {
  position: relative;
  display: block;
  padding: var(--pg-post-pad) 0;
  color: inherit;
  border-bottom: none;
}

/* Hover tick: a 2px accent rule in the post's left gutter. */
.pg-item-link::before {
  content: '';
  position: absolute;
  left: -0.9rem;
  top: calc(var(--pg-post-pad) + 0.2rem);
  bottom: var(--pg-post-pad);
  width: 2px;
  background: var(--accent);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform var(--ease);
}

.pg-item-link:hover {
  border-bottom: none;
}

.pg-item-link:hover::before {
  transform: scaleY(1);
}

.pg-item-link:focus-visible {
  outline-offset: 2px;
}

.pg-item-date {
  display: block;
  margin-bottom: 0.6rem;
}

.pg-item-title {
  font-size: clamp(1.4rem, 1.05rem + 1.2vw, 1.75rem);
  font-weight: 600;
  line-height: 1.22;
  letter-spacing: -0.01em;
  color: var(--ink);
  text-wrap: pretty;
  overflow-wrap: anywhere;
  text-decoration: underline;
  text-decoration-color: transparent;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.16em;
  transition: color var(--ease), text-decoration-color var(--ease);
}

.pg-item-title--untitled {
  font-weight: 600;
  font-style: italic;
  color: var(--pg-meta-ink);
}

.pg-item-excerpt {
  max-width: var(--pg-measure);
  margin-top: 0.7rem;
  font-size: var(--pg-body-size);
  line-height: 1.7;
  color: var(--ink-mid);
  overflow-wrap: anywhere;
}

.pg-item-foot {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.25rem 1.25rem;
  margin-top: 0.9rem;
}

.pg-item-more {
  order: -1;
  color: var(--amber);
  white-space: nowrap;
}

.pg-item-more::after {
  content: '\00a0→';
  display: inline-block;
  transition: transform var(--ease);
}

.pg-item-link:hover .pg-item-title,
.pg-item-link:focus-visible .pg-item-title {
  color: var(--amber);
  text-decoration-color: var(--amber-lt);
}

.pg-item-link:hover .pg-item-more::after {
  transform: translateX(0.2em);
}

.pg-item-link:active .pg-item-title {
  color: var(--ink-mid);
  text-decoration-color: var(--amber);
}

.pg-more {
  padding-top: var(--sp-xl);
  border-top: 1px solid var(--border-lt);
}

.pg-more .pg-button {
  width: 100%;
  justify-content: space-between;
}

.pg-more .pg-button:not([disabled])::after {
  content: '→' / '';
}

/* ─── Buttons: sharp, bevelled, pressed in ink ─────────────── */

.pg-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  min-height: 48px;
  padding: 0.7rem 1.1rem;
  font-size: 0.875rem;
  color: var(--ink);
  text-decoration: none;
  background: color-mix(in srgb, var(--surface-solid) 70%, transparent);
  border: 1px solid var(--border);
  border-radius: 0;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.75);
  cursor: pointer;
  transition: color var(--ease), border-color var(--ease), background-color var(--ease);
}

.pg-button:hover {
  color: var(--amber);
  border-color: var(--amber);
  background-color: color-mix(in srgb, var(--accent-soft) 16%, var(--surface-solid));
}

.pg-button:active {
  color: var(--page-bg);
  border-color: var(--ink);
  background-color: var(--ink);
  box-shadow: none;
}

.pg-button[disabled] {
  cursor: progress;
  color: var(--pg-meta-ink);
  border-color: var(--border-lt);
  background-color: transparent;
}

/* ─── States: empty · missing · unavailable ────────────────── */

.pg-state {
  padding: var(--sp-2xl) 0 var(--sp-xl);
  max-width: 46ch;
}

/* A terminal line above the heading, decorative (the heading says it). */
.pg-state::before {
  display: block;
  margin-bottom: var(--sp-md);
  font-family: var(--font-mono);
  font-size: var(--pg-meta-size);
  letter-spacing: var(--pg-meta-ls);
  color: var(--amber);
}

.pg-state[data-state="empty"]::before       { content: '> 0 entries' / ''; }
.pg-state[data-state="missing"]::before     { content: '> 404 · not found' / ''; }
.pg-state[data-state="unavailable"]::before { content: '> no signal' / ''; }

.pg-state-heading {
  font-family: var(--font-serif);
  font-size: 1.6rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  text-transform: none;
  line-height: 1.25;
  color: var(--ink);
  margin-bottom: var(--sp-sm);
}

.pg-state-heading + .pg-button {
  margin-top: var(--sp-md);
}

.pg-state-text {
  font-size: var(--pg-body-size);
  line-height: 1.7;
  color: var(--ink-mid);
  margin-bottom: var(--sp-lg);
}

.pg-noscript {
  padding: var(--sp-xl) 0;
  font-size: 1rem;
  color: var(--pg-meta-ink);
}

/* ─── Article ───────────────────────────────────────────────── */

.pg-article {
  max-width: var(--pg-measure);
}

.pg-article-head {
  position: relative;
  margin-bottom: var(--sp-xl);
  padding-bottom: var(--sp-xl);
}

/* The one metallic rule on this screen. */
.pg-article-head::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 4.5rem;
  height: 2px;
  background: var(--pg-chrome);
}

.pg-kicker {
  margin-bottom: var(--sp-lg);
}

.pg-kicker a,
.pg-all {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  color: var(--amber);
  border-bottom: none;
  text-decoration: underline;
  text-decoration-color: transparent;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.3em;
  transition: color var(--ease), text-decoration-color var(--ease);
}

.pg-kicker a::before {
  content: '←\00a0' / '';
}

.pg-all::before {
  content: '↑\00a0' / '';
}

.pg-kicker a:hover,
.pg-all:hover {
  color: var(--ink);
  border-bottom: none;
  text-decoration-color: var(--amber-lt);
}

.pg-kicker a:active,
.pg-all:active {
  color: var(--ink-mid);
}

.pg-date {
  display: block;
  margin-bottom: var(--sp-sm);
}

.pg-article h1 {
  font-size: clamp(2rem, 1.2rem + 3.2vw, 2.85rem);
  font-weight: 600;
  line-height: 1.12;
  letter-spacing: -0.015em;
  text-wrap: balance;
  overflow-wrap: anywhere;
  margin-bottom: var(--sp-md);
}

.pg-article h1.pg-title--long {
  font-size: clamp(1.6rem, 1.15rem + 1.8vw, 2.1rem);
  line-height: 1.2;
}

.pg-article h1 time {
  font: inherit;
  color: inherit;
  letter-spacing: inherit;
}

.pg-byline {
  font-size: 1rem;
  font-style: italic;
  line-height: 1.6;
  color: var(--pg-meta-ink);
}

.pg-prose p {
  font-size: var(--pg-body-size);
  line-height: var(--pg-body-lh);
  color: var(--ink-mid);
  margin-bottom: 1.3em;
  overflow-wrap: anywhere;
  hyphens: auto;
}

/* The first paragraph reads as a standfirst. */
.pg-prose p:first-child {
  font-size: 1.1875rem;
  line-height: 1.7;
  color: var(--ink);
}

.pg-prose p:last-child {
  margin-bottom: 0;
}

.pg-wordless {
  font-style: italic;
  color: var(--pg-meta-ink);
}

/* ─── Photographs: image-forward, bleeding past the measure ── */

.pg-photos {
  display: grid;
  gap: var(--sp-2xl);
  margin-top: var(--sp-2xl);
  counter-reset: pg-fig;
}

.pg-figure {
  --pg-bleed: var(--side);
  margin: 0 calc(var(--pg-bleed) * -1);
  counter-increment: pg-fig;
}

.pg-figure-frame {
  display: block;
  width: 100%;
  background: var(--surface-3);
  overflow: hidden;
  transition: background-color var(--ease);
}

.pg-figure[data-photo="ready"] .pg-figure-frame {
  background: transparent;
}

/* Portraits are height-capped so a tall frame never fills the viewport. */
.pg-figure--tall .pg-figure-frame {
  width: min(100%, calc(78vh * var(--pg-ratio, 0.75)));
  margin: 0 auto;
}

.pg-photo {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  color: var(--pg-meta-ink);         /* alt text while loading */
  font-size: 0.9rem;
}

/* Withdrawn: a hatched archival placeholder at the photo's own ratio. */
.pg-photo-missing {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  min-height: 6rem;
  padding: var(--sp-md);
  text-align: center;
  border: 1px dashed var(--border);
  background:
    repeating-linear-gradient(135deg, transparent 0 9px, var(--border-lt) 9px 10px),
    var(--surface-3);
}

.pg-caption {
  display: flex;
  gap: 0.75rem;
  align-items: baseline;
  margin-top: 0.7rem;
  padding: 0 var(--pg-bleed);
  font-size: 0.9375rem;
  font-style: italic;
  line-height: 1.6;
  color: var(--pg-meta-ink);
}

.pg-caption::before {
  content: 'fig. ' counter(pg-fig, decimal-leading-zero) / '';
  flex: none;
  font-family: var(--font-mono);
  font-size: var(--pg-meta-size);
  font-style: normal;
  letter-spacing: var(--pg-meta-ls);
}

/* ─── Article footer ────────────────────────────────────────── */

.pg-article-foot {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--sp-xs) var(--sp-lg);
  margin-top: var(--sp-2xl);
  padding-top: var(--sp-md);
  border-top: 1px solid var(--border-lt);
}

.pg-tags,
.pg-updated {
  margin: 0;
}

.pg-updated {
  margin-left: auto;
}

/* ─── Continuity: newer ← → older ──────────────────────────── */

.pg-continue {
  margin-top: var(--sp-3xl);
  max-width: var(--pg-measure);
}

.pg-neighbours {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border-lt);
}

.pg-neighbour {
  display: block;
  grid-column: 1;
  padding: var(--sp-lg) var(--sp-lg) var(--sp-lg) 0;
  color: inherit;
  border-bottom: none;
}

.pg-neighbour--earlier {
  grid-column: 2;
  padding: var(--sp-lg) 0 var(--sp-lg) var(--sp-lg);
  text-align: right;
}

.pg-neighbour--later + .pg-neighbour--earlier {
  border-left: 1px solid var(--border-lt);
}

.pg-neighbour:hover {
  border-bottom: none;
}

.pg-neighbour-label {
  display: block;
  margin-bottom: 0.4rem;
}

.pg-neighbour--later .pg-neighbour-label::before {
  content: '←\00a0' / '';
}

.pg-neighbour--earlier .pg-neighbour-label::after {
  content: '\00a0→' / '';
}

.pg-neighbour-title {
  display: block;
  font-size: 1.125rem;
  font-weight: 600;
  line-height: 1.35;
  color: var(--ink);
  overflow-wrap: anywhere;
  text-decoration: underline;
  text-decoration-color: transparent;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.16em;
  transition: color var(--ease), text-decoration-color var(--ease);
}

.pg-neighbour-date {
  display: block;
  margin-top: 0.35rem;
}

.pg-neighbour:hover .pg-neighbour-title,
.pg-neighbour:focus-visible .pg-neighbour-title {
  color: var(--amber);
  text-decoration-color: var(--amber-lt);
}

.pg-neighbour:active .pg-neighbour-title {
  color: var(--ink-mid);
}

.pg-all {
  margin-top: var(--sp-md);
}

/* ─── Motion: one quiet fade, a caret, an LED — all optional ── */

@keyframes pg-fade {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes pg-blink {
  50% { opacity: 0; }
}

@keyframes pg-pulse {
  50% { opacity: 0.3; }
}

.pg-enter {
  animation: pg-fade var(--t-calm) var(--ease-out) both;
}

html[data-motion="reduced"] .pg-status--busy::after,
html[data-motion="reduced"] .pg-button[disabled]::after,
html[data-motion="reduced"] .pg-signal-led {
  animation: none;
}

@media (prefers-reduced-motion: reduce) {
  html:not([data-motion="full"]) .pg-status--busy::after,
  html:not([data-motion="full"]) .pg-button[disabled]::after,
  html:not([data-motion="full"]) .pg-signal-led {
    animation: none;
  }
}

/* ─── Narrow viewports ──────────────────────────────────────── */

@media (max-width: 600px) {
  .pg-neighbours {
    grid-template-columns: 1fr;
  }

  .pg-neighbour,
  .pg-neighbour--earlier,
  .pg-neighbour--later + .pg-neighbour--earlier {
    grid-column: 1;
    padding: var(--sp-lg) 0;
    text-align: left;
    border-left: none;
  }

  .pg-neighbour + .pg-neighbour {
    border-top: 1px solid var(--border-lt);
  }

  .pg-continue {
    margin-top: var(--sp-2xl);
  }
}

/* ─── Wide: the masthead becomes a sidebar in the left margin ─
   The post column stays on the nav's axis; the rail hangs beside it. */

@media (min-width: 1100px) {
  .pg-figure {
    --pg-bleed: 5rem;
  }
}

@media (min-width: 1240px) {
  main[data-view="index"] .pg {
    display: grid;
    grid-template-columns: minmax(0, 1fr) min(var(--max-w), 100%) minmax(0, 1fr);
    align-items: start;
    max-width: none;
    padding: 0;
  }

  main[data-view="index"] .pg-index {
    grid-column: 2;
    grid-row: 1;
    padding: 0 var(--side);
  }

  main[data-view="index"] .pg-room {
    grid-column: 1;
    grid-row: 1;
    justify-self: end;
    position: sticky;
    top: 7.5rem;
    width: var(--pg-rail);
    margin-right: calc(var(--pg-rail-gap) - var(--side));
    padding: var(--sp-xl) 0 0;
    border-bottom: 0;
  }

  main[data-view="index"] .pg-room h1 {
    font-size: 2.5rem;
  }

  main[data-view="index"] .pg-years > .pg-year:first-child {
    margin-top: var(--sp-xl);
  }

  /* Article: the way back and the date hang in the same margin. */
  .pg-article-head .pg-kicker,
  .pg-article-head .pg-date {
    position: absolute;
    right: calc(100% + var(--pg-rail-gap));
    width: var(--pg-rail);
    margin: 0;
    text-align: right;
  }

  .pg-article-head .pg-kicker {
    top: -0.5rem;
  }

  .pg-article-head .pg-date {
    top: 3rem;
  }
}

/* ─── Print ─────────────────────────────────────────────────── */

@media print {
  .pg-kicker,
  .pg-continue,
  .pg-more,
  .pg-status,
  .pg-signal,
  .pg-end,
  .pg-item-more {
    display: none;
  }

  .pg-prose p {
    color: #000;
  }
}