/* ---- nav ---- */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 40;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  border-bottom: 1px solid var(--border);
}
.site-nav .container-wide {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}
.site-nav .brand {
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: -0.02em;
  text-decoration: none;
  white-space: nowrap;
  position: relative;
}
/* brand carries the identity: a beam splitting under the wordmark on hover */
.site-nav .brand::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -4px;
  height: 1px;
  background: var(--beam);
  opacity: 0;
  transform: scaleX(0.4);
  transform-origin: left;
  transition: opacity var(--duration) var(--ease), transform var(--duration) var(--ease);
}
.site-nav .brand:hover::after { opacity: 1; transform: scaleX(1); }
.nav-links {
  display: flex;
  gap: 1.9rem;
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-links a {
  position: relative;
  text-decoration: none;
  color: var(--fg-muted);
  font-size: 0.9375rem;
  font-weight: 460;
  padding-block: 0.3rem;
  transition: color var(--duration-fast) var(--ease);
}
.nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 100%;
  bottom: 0;
  height: 1.5px;
  background: var(--beam);
  transition: right var(--duration) var(--ease);
}
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--fg); }
.nav-links a[aria-current="page"]::after { right: 0; }
.nav-cta { white-space: nowrap; }

/* square icon buttons in the nav (theme toggle, GitHub) share one chrome */
.theme-toggle, .nav-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.1rem;
  height: 2.1rem;
  padding: 0;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--fg-muted);
  cursor: pointer;
  text-decoration: none;
  transition: border-color var(--duration) var(--ease), color var(--duration) var(--ease), background var(--duration) var(--ease);
}
.theme-toggle:hover, .nav-icon:hover { border-color: var(--fg-muted); color: var(--fg); background: var(--bg-raised); }
.theme-toggle svg, .nav-icon svg { width: 1.05rem; height: 1.05rem; }
.theme-toggle .icon-sun { display: none; }
.theme-toggle .icon-moon { display: block; }
:root[data-theme="light"] .theme-toggle .icon-sun { display: block; }
:root[data-theme="light"] .theme-toggle .icon-moon { display: none; }

.nav-toggle { display: none; }
/* Install + GitHub links that only appear inside the expanded mobile menu */
.nav-only-mobile { display: none; }

@media (max-width: 820px) {
  .nav-links { display: none; }
  /* on mobile the bar keeps only theme toggle + hamburger; GitHub and Install
     move into the expanded menu (below) so the bar never overflows */
  .site-nav .nav-icon, .site-nav .nav-cta { display: none; }
  .nav-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.1rem;
    height: 2.1rem;
    padding: 0;
    background: none;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--fg-muted);
    cursor: pointer;
    transition: border-color var(--duration) var(--ease), color var(--duration) var(--ease), background var(--duration) var(--ease);
  }
  .nav-toggle:hover { border-color: var(--fg-muted); color: var(--fg); background: var(--bg-raised); }
  .nav-toggle svg { width: 1.15rem; height: 1.15rem; }
  .nav-links.is-open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: var(--bg-raised);
    border-bottom: 1px solid var(--border);
    padding: 1.1rem 1.5rem;
    gap: 1rem;
  }
  .nav-links.is-open .nav-only-mobile { display: block; }
  .nav-links.is-open .nav-only-mobile a { color: var(--accent-verify-ink); }
}

/* ---- buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  font-weight: 560;
  padding: 0.72rem 1.25rem;
  border-radius: var(--radius);
  border: 1px solid transparent;
  text-decoration: none;
  cursor: pointer;
  transition: transform var(--duration) var(--ease), background var(--duration) var(--ease), border-color var(--duration) var(--ease), box-shadow var(--duration) var(--ease);
  white-space: nowrap;
}
.btn:active { transform: scale(0.98); }
.btn-primary {
  background: var(--accent-create);
  color: #17130a;
}
.btn-primary:hover {
  background: color-mix(in srgb, var(--accent-create) 86%, white);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px color-mix(in srgb, var(--accent-create) 32%, transparent);
}
.btn-secondary {
  background: transparent;
  color: var(--fg);
  border-color: var(--border-strong);
}
.btn-secondary:hover {
  border-color: var(--fg-muted);
  background: var(--bg-raised);
  transform: translateY(-1px);
}

/* ---- shared depth for raised surfaces ---- */
.cite-block, .stat-row, .compat-tile {
  box-shadow:
    inset 0 1px 0 var(--depth-highlight),
    0 1px 2px var(--depth-shadow);
}

/* ---- citation / terminal block (primary motif) ---- */
.cite-block {
  position: relative;
  isolation: isolate;
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
/* Signature interaction: a soft verify-blue spotlight tracks the cursor across
   the block's output area (JS sets --mx/--my). Sits above the surface but
   below the text; the opaque header masks it, so it lives in the "output".
   Enabled only on hover-capable devices with motion allowed (see site.js). */
.cite-block::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  border-radius: inherit;
  pointer-events: none;
  opacity: 0;
  background: radial-gradient(320px circle at var(--mx, 50%) var(--my, -30%),
    color-mix(in srgb, var(--accent-verify) 15%, transparent), transparent 55%);
  transition: opacity var(--duration-slow) var(--ease);
}
.cite-block > * { position: relative; z-index: 1; }
@media (hover: hover) and (prefers-reduced-motion: no-preference) {
  .cite-block:hover::before { opacity: 1; }
}
.cite-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.65rem 1.05rem;
  font-family: var(--font-mono);
  font-size: var(--text-mono-sm);
  font-weight: 600;
  letter-spacing: 0.04em;
  border-bottom: 1px solid var(--border);
  background: var(--bg-raised-2);
}
.cite-header.outcome-fail { color: var(--fg); }
.cite-header.outcome-pass {
  color: var(--accent-verify-ink);
  border-bottom-color: color-mix(in srgb, var(--accent-verify) 40%, var(--border));
}
/* pass blocks carry a verify-blue light edge — the wavelength that checked out */
.cite-block:has(.cite-header.outcome-pass) {
  border-left: 2px solid color-mix(in srgb, var(--accent-verify) 55%, transparent);
}
.cite-body {
  padding: 1.05rem 1.2rem;
  font-family: var(--font-mono);
  font-size: var(--text-mono-sm);
  line-height: 1.75;
  white-space: pre-wrap;
  color: var(--fg-muted);
  overflow-x: auto;
}
.cite-body .hl { color: var(--fg); font-weight: 500; }
.cite-body .accent-verify { color: var(--accent-verify-ink); }
.cite-body .accent-create { color: var(--accent-create-ink); }

.copy-btn {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  background: transparent;
  border: 1px solid var(--border-strong);
  color: var(--fg-muted);
  padding: 0.22rem 0.6rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: color var(--duration) var(--ease), border-color var(--duration) var(--ease), background var(--duration) var(--ease);
}
.copy-btn:hover { color: var(--fg); border-color: var(--fg-muted); }
.copy-btn.is-copied {
  color: var(--accent-verify-ink);
  border-color: color-mix(in srgb, var(--accent-verify) 50%, var(--border-strong));
  background: var(--accent-verify-soft);
}

/* ---- hero ---- */
.hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--border);
}
.hero-field {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}
.hero-field canvas { width: 100%; height: 100%; display: block; }
/* directional scrim: copy sits on calm ground at the left, the dispersed
   beam stays vivid toward the right */
.hero-field::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(97deg,
    var(--bg) 8%,
    color-mix(in srgb, var(--bg) 72%, transparent) 44%,
    transparent 64%);
}
.hero-inner {
  position: relative;
  z-index: 1;
  padding-block: 6rem 5rem;
}
/* premium load-in: the hero elements cascade rather than arriving at once.
   Delays live only on .reveal (added by site.js), so reduced-motion and
   ?static=1 both skip them cleanly. */
.hero-inner > .reveal:nth-child(1) { transition-delay: 40ms; }
.hero-inner > .reveal:nth-child(2) { transition-delay: 120ms; }
.hero-inner > .reveal:nth-child(3) { transition-delay: 200ms; }
.hero-inner > .reveal:nth-child(4) { transition-delay: 280ms; }
:root[data-theme="light"] .hero-field { opacity: 0.45; }
@media (max-width: 768px) {
  .hero-inner { padding-block: 4rem 3rem; }
}

/* two-up comparison grid that collapses cleanly on mobile */
.split-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}
@media (max-width: 768px) {
  .split-2 { grid-template-columns: 1fr; }
}

/* ---- compatibility marquee ---- */
.marquee {
  overflow: hidden;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 7%, #000 93%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 7%, #000 93%, transparent);
}
.marquee-track {
  display: flex;
  gap: 0.9rem;
  width: max-content;
  padding-block: 0.25rem;
  animation: marquee-scroll 44s linear infinite;
}
.marquee:hover .marquee-track { animation-play-state: paused; }
@keyframes marquee-scroll {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}
@media (prefers-reduced-motion: reduce) {
  .marquee { mask-image: none; -webkit-mask-image: none; }
  .marquee-track { animation: none; width: auto; flex-wrap: wrap; }
  .marquee-track [data-marquee-dup] { display: none; }
}

.compat-tile {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.68rem 1rem;
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 0.875rem;
  font-weight: 460;
  color: var(--fg-muted);
  white-space: nowrap;
  transition: border-color var(--duration) var(--ease), background var(--duration) var(--ease), transform var(--duration) var(--ease), color var(--duration) var(--ease);
}
.compat-tile:hover {
  border-color: var(--border-strong);
  background: var(--bg-raised-2);
  color: var(--fg);
  transform: translateY(-1px);
}
.compat-tile img { height: 22px; width: auto; }
.compat-tile img.logo-chip {
  height: 26px;
  background: #fff;
  border-radius: var(--radius-sm);
  padding: 3px 5px;
}
.compat-caption {
  margin-top: var(--space-3);
  font-size: var(--text-small);
  color: var(--fg-faint);
  max-width: 60ch;
}

/* ---- stat row: hairline columns, oversized mono numerals ---- */
.stat-row {
  display: grid;
  /* 6 stats: only even splits, never a ragged last row */
  grid-template-columns: repeat(6, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
@media (max-width: 980px) {
  .stat-row { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 520px) {
  .stat-row { grid-template-columns: repeat(2, 1fr); }
}
.stat-tile {
  background: var(--bg-raised);
  padding: 1.6rem 1.25rem 1.35rem;
}
.stat-num {
  font-family: var(--font-mono);
  font-size: clamp(1.9rem, 1.4rem + 1.6vw, 2.7rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--fg);
  font-variant-numeric: tabular-nums;
}
.stat-label {
  font-size: var(--text-small);
  color: var(--fg-faint);
  margin-top: 0.3rem;
}

/* ---- tabs ---- */
.tabs { display: flex; gap: 0.4rem; margin-bottom: 1.1rem; }
.tab-btn {
  font-family: var(--font-mono);
  font-size: var(--text-mono-sm);
  background: transparent;
  border: 1px solid var(--border);
  color: var(--fg-muted);
  padding: 0.5rem 0.95rem;
  border-radius: var(--radius);
  cursor: pointer;
  transition: border-color var(--duration) var(--ease), color var(--duration) var(--ease), background var(--duration) var(--ease);
}
.tab-btn:hover { border-color: var(--fg-muted); color: var(--fg); }
.tab-btn[aria-selected="true"] {
  color: var(--fg);
  border-color: var(--fg-muted);
  background: var(--bg-raised-2);
}
.tab-panel[hidden] { display: none; }

/* ---- semantic tags ---- */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  padding: 0.22rem 0.6rem;
  border-radius: var(--radius-sm);
}
.tag-create { background: var(--accent-create-soft); color: var(--accent-create-ink); }
.tag-verify { background: var(--accent-verify-soft); color: var(--accent-verify-ink); }

/* ---- skill rows ---- */
.skill-row {
  display: grid;
  grid-template-columns: minmax(190px, 280px) 1fr;
  gap: 2rem;
  padding-block: 2.4rem;
}
.skill-row + .skill-row { border-top: 1px solid var(--border); }
.skill-row .skill-name {
  font-family: var(--font-mono);
  font-size: 1.08rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}
@media (max-width: 768px) {
  .skill-row { grid-template-columns: 1fr; gap: 0.85rem; padding-block: 1.8rem; }
}

/* ---- install steps ---- */
.steps { display: grid; gap: 0.8rem; counter-reset: step; }
.step {
  display: grid;
  grid-template-columns: 1.8rem 1fr;
  gap: 0.8rem;
  align-items: center;
}
.step::before {
  counter-increment: step;
  content: counter(step);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--fg-faint);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  width: 1.8rem;
  height: 1.8rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ---- footer ---- */
.site-footer {
  position: relative;
  padding-block: var(--space-5) 2.25rem;
  margin-top: var(--space-6);
}
.site-footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--beam);
  opacity: 0.6;
}
.footer-top {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
  gap: 3rem;
  align-items: start;
}
.footer-wordmark {
  display: inline-block;
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  text-decoration: none;
  color: var(--fg);
}
.footer-tagline {
  margin-top: 0.85rem;
  max-width: 46ch;
  color: var(--fg-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}
.footer-gh {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 1.35rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--fg-muted);
  text-decoration: none;
  padding: 0.5rem 0.85rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color var(--duration) var(--ease), color var(--duration) var(--ease), background var(--duration) var(--ease);
}
.footer-gh svg { width: 1.05rem; height: 1.05rem; }
.footer-gh:hover { color: var(--fg); border-color: var(--fg-muted); background: var(--bg-raised); }

.footer-cols {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}
.footer-col-head {
  font-family: var(--font-mono);
  font-size: var(--text-eyebrow);
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--fg-faint);
  margin-bottom: 0.9rem;
}
.footer-col ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.65rem; }
.footer-col a {
  text-decoration: none;
  color: var(--fg-muted);
  font-size: 0.9375rem;
  transition: color var(--duration) var(--ease);
}
.footer-col a:hover { color: var(--fg); }

.footer-bar {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.75rem;
  margin-top: var(--space-5);
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
}
.footer-credit { color: var(--fg-faint); font-size: var(--text-small); margin: 0; }

@media (max-width: 768px) {
  .footer-top { grid-template-columns: 1fr; gap: 2.25rem; }
}
@media (max-width: 420px) {
  .footer-cols { grid-template-columns: 1fr; gap: 1.75rem; }
}

/* ---- rigor cards ---- */
.rigor-card { padding: 1.7rem 0; }
.rigor-card + .rigor-card { border-top: 1px solid var(--border); }
.rigor-num {
  font-family: var(--font-mono);
  color: var(--accent-verify-ink);
  font-size: 0.9375rem;
  font-weight: 600;
}

/* ---- accordion ---- */
.accordion-item { border-bottom: 1px solid var(--border); }
.accordion-item summary {
  cursor: pointer;
  padding: 1.15rem 0;
  font-weight: 540;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  transition: color var(--duration) var(--ease);
}
.accordion-item summary:hover { color: var(--accent-verify-ink); }
.accordion-item summary::-webkit-details-marker { display: none; }
.accordion-item summary::after {
  content: "+";
  font-family: var(--font-mono);
  color: var(--fg-faint);
  transition: color var(--duration) var(--ease), transform var(--duration) var(--ease);
}
.accordion-item summary:hover::after { color: var(--accent-verify-ink); }
.accordion-item[open] summary::after { content: "\2212"; }
.accordion-item .accordion-body {
  padding-bottom: 1.2rem;
  color: var(--fg-muted);
  max-width: 65ch;
}

/* ---- inline text links inside body copy ---- */
.link {
  color: var(--accent-verify-ink);
  text-decoration: underline;
  text-decoration-color: color-mix(in srgb, var(--accent-verify) 40%, transparent);
  text-underline-offset: 3px;
  transition: text-decoration-color var(--duration) var(--ease);
}
.link:hover { text-decoration-color: var(--accent-verify-ink); }

/* ---- section-heading beam accent ----
   A short beam tick above every content-section headline, so the refraction
   motif recurs consistently across all pages (the hero uses .display, not
   .headline, so it stays unaffected). */
main .headline { position: relative; }
main .headline::before {
  content: "";
  display: block;
  width: 2.25rem;
  height: 2px;
  border-radius: 2px;
  background: var(--beam);
  margin-bottom: 0.95rem;
  opacity: 0.9;
}

/* ---- manifesto / statement beat ----
   One bold thesis line as a full-width breather (the content pattern both
   impeccable.style and tasteskill.dev lead on). Real copy, no fabrication. */
.statement { padding-block: var(--space-6); }
.statement-line {
  font-size: clamp(1.85rem, 1.15rem + 2.7vw, 3.05rem);
  font-weight: 560;
  line-height: 1.14;
  letter-spacing: -0.022em;
  max-width: 24ch;
  margin-top: var(--space-2);
  text-wrap: balance;
}
.statement-mark {
  position: relative;
  white-space: nowrap;
}
.statement-mark::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0.06em;
  height: 3px;
  border-radius: 2px;
  background: var(--beam);
}

/* ---- numbered skill index (tasteskill's 01–05 catalog rhythm) ---- */
.skill-idx {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--text-mono-sm);
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--fg-faint);
  margin-bottom: 0.35rem;
}

/* ---- selling-point row ----
   The "why this" block every successful plugin site carries. Hairline-divided
   columns rather than 3 equal cards (taste-skill 9.C bans the card variant;
   4.4 prefers grouping by rule + negative space). Mono lowercase labels dodge
   the uppercase-tracking eyebrow signature. */
.value-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border-top: 1px solid var(--border);
}
.value-item {
  padding: 1.9rem 1.75rem 0.35rem 0;
  border-right: 1px solid var(--border);
}
.value-item:last-child { border-right: 0; padding-right: 0; }
.value-item:not(:first-child) { padding-left: 1.75rem; }
.value-label {
  font-family: var(--font-mono);
  font-size: 0.9375rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--fg);
  margin-bottom: 0.6rem;
}
.value-item .body-copy { font-size: 0.9375rem; max-width: 38ch; }

@media (max-width: 860px) {
  .value-row { grid-template-columns: 1fr; }
  .value-item {
    border-right: 0;
    border-bottom: 1px solid var(--border);
    padding: 1.5rem 0 1.5rem 0;
  }
  .value-item:not(:first-child) { padding-left: 0; }
  .value-item:last-child { border-bottom: 0; }
  .value-item .body-copy { max-width: 60ch; }
}

/* ---- kinetic hero typography ----
   Each headline word rises out of its own clip box with a blur settle (spans
   injected by site.js; reduced motion and ?static=1 never run the split).
   The clip wrappers reserve descender room so g/y/p never crop. */
.kword {
  display: inline-block;
  overflow: hidden;
  vertical-align: bottom;
  padding-bottom: 0.12em;
  margin-bottom: -0.12em;
}
.kword-in {
  display: inline-block;
  opacity: 0;
  transform: translateY(118%);
  filter: blur(10px);
  animation: kword-rise 640ms var(--ease) forwards;
  animation-delay: calc(var(--ki) * 70ms + 80ms);
}
@keyframes kword-rise {
  to { opacity: 1; transform: none; filter: blur(0); }
}

/* ---- scroll-progress beam ----
   The identity motif doubles as the scroll position: the beam grows across
   the top of the viewport as the page is read. CSS scroll-driven animation,
   zero JS; browsers without animation-timeline simply never show it. */
.scroll-beam {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  z-index: 60;
  background: var(--beam);
  transform-origin: 0 50%;
  transform: scaleX(0);
  pointer-events: none;
}
@supports (animation-timeline: scroll()) {
  .scroll-beam {
    animation: beam-grow linear both;
    animation-timeline: scroll(root);
  }
  @keyframes beam-grow {
    from { transform: scaleX(0); }
    to { transform: scaleX(1); }
  }
}

/* ---- cross-page view transitions ----
   Same-origin MPA navigation crossfades (Chrome 126+ / Safari 18.2+;
   elsewhere navigation is instant, nothing breaks). */
@view-transition { navigation: auto; }
::view-transition-old(root), ::view-transition-new(root) { animation-duration: 180ms; }
@media (prefers-reduced-motion: reduce) {
  @view-transition { navigation: none; }
}