:root {
  --color-surface: #f9f9f9;
  --color-surface-alt: #f0f0f0;
  --color-surface-deep: #e3e4e4;
  --color-ink: #414b4e;
  --color-ink-soft: #637173;
  --color-ink-muted: #778588;
  --color-line: #d8dada;
  --color-primary: #1f8094;
  --color-primary-ink: #ffffff;
  --color-primary-soft: #dae8eb;
  --color-accent: #da3b25;
  --color-accent-ink: #ffffff;
  --color-highlight: #f3d7d3;
  --color-focus: #d42e17;
  --color-contrast-surface: #17272a;
  --color-contrast-ink: #e4e6e7;
  --color-contrast-line: #445154;
  --color-contrast-accent: #e26655;
  --overlay-scrim: linear-gradient(180deg, rgba(23, 39, 42, 0.35) 0%, rgba(23, 39, 42, 0.72) 55%, rgba(23, 39, 42, 0.92) 100%);
  --font-heading: ui-monospace, SFMono-Regular, Menlo, Consolas, "PingFang SC", monospace;
  --font-body: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --text-xs: 9.7px;
  --text-sm: 13.0px;
  --text-base: 15px;
  --text-lg: 20.0px;
  --text-xl: 26.7px;
  --text-2xl: 35.5px;
  --text-3xl: 47.4px;
  --text-4xl: 63.1px;
  --text-display: clamp(48px, 9.8vw, 126px);
  --text-figure: clamp(40px, 7.1vw, 91px);
  --weight-heading: 736;
  --weight-body: 400;
  --leading-body: 1.66;
  --leading-heading: 1.29;
  --tracking-heading: 0.031em;
  --radius-sm: 213px;
  --radius-md: 404px;
  --radius-lg: 595px;
  --radius-pill: 999px;
  --border-thin: 1px;
  --border-thick: 2px;
  --shadow-1: 0 0 0 1px rgba(218, 59, 37, 0.35);
  --shadow-2: 0 0 28px rgba(218, 59, 37, 0.35);
  --space-1: 6px;
  --space-2: 12px;
  --space-3: 18px;
  --space-4: 24px;
  --space-6: 36px;
  --space-8: 48px;
  --container: 1180px;
  --measure: 73ch;
  --gutter: 12px;
  --section-y: 69px;
  --section-y-lg: 97px;
}

/* ---------- reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--color-surface);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  font-weight: var(--weight-body);
  text-rendering: optimizeLegibility;
}
img, svg, video { display: block; max-width: 100%; }
p { margin: 0; }
h1, h2, h3, h4, h5 {
  margin: 0;
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
}
a { color: var(--color-primary); text-underline-offset: 3px; text-decoration-thickness: 1px; }
button { font: inherit; color: inherit; }
ul, ol { margin: 0; padding: 0; }
::selection { background: var(--color-highlight); color: var(--color-ink); }
:focus-visible { outline: 2px solid var(--color-focus); outline-offset: 2px; }
.on-dark :focus-visible, .site-footer :focus-visible { outline-color: var(--color-contrast-accent); }

/* ---------- layout ---------- */
.wrap {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--space-3);
}
.section { padding-block: var(--section-y); }
.section--lg { padding-block: var(--section-y-lg); }
.grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: var(--space-3);
}
.rule-dotted { border: 0; border-top: 1px dotted var(--color-line); margin: 0; }
.visually-hidden {
  position: absolute; width: 1px; height: 1px; overflow: hidden;
  clip-path: inset(50%); white-space: nowrap;
}

/* ---------- type helpers ---------- */
.mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.08em;
}
.idx {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.12em;
  color: var(--color-ink-muted);
}
.eyebrow {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-ink-muted);
}
.display {
  font-family: var(--font-heading);
  font-size: var(--text-display);
  font-weight: var(--weight-heading);
  line-height: 0.92;
  letter-spacing: -0.01em;
}
.figure {
  font-family: var(--font-mono);
  font-size: var(--text-figure);
  font-weight: var(--weight-heading);
  line-height: 1;
  letter-spacing: 0.01em;
  color: var(--color-primary);
}
.prose { max-width: var(--measure); }
.prose > * + * { margin-top: var(--space-3); }
.prose h2 { font-size: var(--text-xl); }
.prose h3 { font-size: var(--text-lg); }
.prose ul, .prose ol { padding-left: var(--space-4); }
.prose li + li { margin-top: var(--space-1); }
.prose blockquote {
  margin: 0;
  padding: var(--space-3);
  background: var(--color-primary-soft);
  border-left: var(--border-thick) solid var(--color-primary);
}

/* ---------- on-dark shell ---------- */
.on-dark {
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
}
.on-dark h1, .on-dark h2, .on-dark h3 { color: var(--color-contrast-ink); }
.on-dark a { color: var(--color-contrast-accent); }
.on-dark .idx, .on-dark .eyebrow { color: var(--color-contrast-line); }

/* ---------- skip link ---------- */
.skip-link {
  position: absolute;
  left: var(--space-3);
  top: -120px;
  z-index: 90;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-pill);
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.08em;
  text-decoration: none;
  transition: top 140ms ease-out;
}
.skip-link:focus { top: var(--space-2); }

/* ---------- header ---------- */
.site-header {
  position: relative;
  background: var(--color-surface);
  border-bottom: var(--border-thin) solid var(--color-line);
}
.site-header__bar {
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
}
.site-header__bar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  min-height: 36px;
  padding-block: var(--space-1);
}
.site-header__utility {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.09em;
  color: var(--color-contrast-ink);
}
.site-header__season {
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  color: var(--color-contrast-accent);
  white-space: nowrap;
}
.site-header__masthead { padding-block: var(--space-4) var(--space-3); }
.site-header__masthead-inner {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  color: var(--color-ink);
}
.brand__mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  flex: none;
  border: var(--border-thin) solid var(--color-primary);
  border-radius: var(--radius-pill);
  background: var(--color-primary-soft);
  color: var(--color-primary);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.1em;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.8);
}
.brand__text { display: grid; gap: 3px; }
.brand__name {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  line-height: 1.08;
  letter-spacing: 0.04em;
  color: var(--color-ink);
  transition: color 140ms ease-out;
}
.brand__tag {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.16em;
  color: var(--color-ink-muted);
  text-transform: uppercase;
}
.brand:hover .brand__name { color: var(--color-primary); }
.nav-toggle {
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  display: none;
  align-items: center;
  gap: var(--space-2);
  padding: 7px 16px;
  border: var(--border-thin) solid var(--color-primary);
  border-radius: var(--radius-pill);
  background: var(--color-surface);
  color: var(--color-primary);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.12em;
  cursor: pointer;
  transition: background-color 140ms ease-out, color 140ms ease-out, box-shadow 140ms ease-out;
}
.nav-toggle:hover { background: var(--color-primary-soft); box-shadow: var(--shadow-1); }
.nav-toggle__icon {
  display: inline-flex;
  flex-direction: column;
  justify-content: space-between;
  width: 16px;
  height: 12px;
}
.nav-toggle__icon span {
  display: block;
  height: 2px;
  border-radius: 1px;
  background: currentColor;
  transition: transform 140ms ease-out, opacity 140ms ease-out;
}
.nav-toggle[aria-expanded="true"] .nav-toggle__icon span:nth-child(1) { transform: translateY(5px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__icon span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle__icon span:nth-child(3) { transform: translateY(-5px) rotate(-45deg); }
.site-nav {
  background: var(--color-surface-alt);
  border-top: 1px dotted var(--color-line);
  border-bottom: var(--border-thin) solid var(--color-line);
}
.site-nav__list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: var(--space-2);
  list-style: none;
  max-width: var(--container);
  margin-inline: auto;
  padding: var(--space-3);
}
.site-nav__link {
  display: inline-flex;
  align-items: center;
  padding: 7px 18px;
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-pill);
  background: var(--color-surface);
  color: var(--color-ink-soft);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.09em;
  text-decoration: none;
  transition: background-color 150ms ease-out, color 150ms ease-out, border-color 150ms ease-out, box-shadow 150ms ease-out;
}
.site-nav__link:hover {
  background: var(--color-primary-soft);
  border-color: var(--color-primary);
  color: var(--color-primary);
  box-shadow: var(--shadow-1);
}
.site-nav__link[aria-current="page"] {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-primary-ink);
}
.site-nav__link[aria-current="page"]:hover { box-shadow: var(--shadow-2); }
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  z-index: 70;
  transform: scaleX(0);
  transform-origin: 0 50%;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  pointer-events: none;
}

/* ---------- panels ---------- */
.panel {
  border: var(--border-thin) solid var(--color-line);
  background: var(--color-surface);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.85);
  transition: border-color 180ms ease-out, box-shadow 180ms ease-out;
}
.panel--deep { background: var(--color-surface-alt); }
.panel__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding: var(--space-2) var(--space-3);
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.16em;
  text-transform: uppercase;
}
.panel__num { color: var(--color-contrast-accent); }
.panel__body { padding: var(--space-4) var(--space-3); }
a.panel:hover, .panel--link:hover {
  border-color: var(--color-primary);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.85), var(--shadow-2);
}

/* ---------- capsules ---------- */
.capsule {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: 6px 15px;
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-pill);
  background: var(--color-surface-alt);
  color: var(--color-ink-soft);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 140ms ease-out, color 140ms ease-out, border-color 140ms ease-out;
}
.capsule:hover {
  background: var(--color-primary-soft);
  border-color: var(--color-primary);
  color: var(--color-primary);
}
.capsule.is-on,
.capsule[aria-pressed="true"] {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-primary-ink);
}
.capsule--accent[aria-pressed="true"],
.capsule--accent.is-on {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-accent-ink);
}

/* ---------- lamps ---------- */
.lamp {
  display: inline-block;
  width: 8px;
  height: 8px;
  flex: none;
  border-radius: 50%;
  background: var(--color-ink-muted);
  vertical-align: middle;
}
.lamp--on { background: var(--color-contrast-accent); box-shadow: 0 0 10px rgba(226, 102, 85, 0.8); }
.lamp--primary { background: var(--color-primary); box-shadow: 0 0 10px rgba(31, 128, 148, 0.55); }
.lamp--accent { background: var(--color-accent); box-shadow: 0 0 10px rgba(218, 59, 37, 0.55); }

/* ---------- status strips ---------- */
.status-strip {
  position: relative;
  height: 8px;
  overflow: hidden;
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-pill);
  background: var(--color-surface-deep);
}
.status-strip__fill {
  display: block;
  height: 100%;
  width: var(--fill, 50%);
  border-radius: var(--radius-pill);
  transform-origin: left center;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  animation: strip-grow 520ms ease-out both;
}
.status-strip--accent .status-strip__fill { background: var(--color-accent); }
.status-strip--primary .status-strip__fill { background: var(--color-primary); }
@keyframes strip-grow {
  from { transform: scaleX(0); }
  to { transform: scaleX(1); }
}

/* ---------- buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 10px 24px;
  border: var(--border-thin) solid var(--color-primary);
  border-radius: var(--radius-pill);
  background: transparent;
  color: var(--color-primary);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.09em;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 160ms ease-out, color 160ms ease-out, box-shadow 160ms ease-out, border-color 160ms ease-out;
}
.btn:hover { background: var(--color-primary); color: var(--color-primary-ink); box-shadow: var(--shadow-1); }
.btn--solid { background: var(--color-primary); color: var(--color-primary-ink); }
.btn--solid:hover { box-shadow: var(--shadow-2); }
.btn--accent { border-color: var(--color-accent); color: var(--color-accent); }
.btn--accent:hover { background: var(--color-accent); color: var(--color-accent-ink); box-shadow: var(--shadow-2); }
.btn--on-dark { border-color: var(--color-contrast-accent); color: var(--color-contrast-accent); }
.btn--on-dark:hover { background: var(--color-contrast-accent); color: var(--color-contrast-surface); box-shadow: none; }
.btn--sm { padding: 6px 16px; font-size: var(--text-xs); }

/* ---------- breadcrumb ---------- */
.crumb {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-ink-muted);
}
.crumb ol { display: flex; flex-wrap: wrap; gap: var(--space-2); list-style: none; }
.crumb li { display: inline-flex; align-items: center; gap: var(--space-2); }
.crumb li + li::before { content: "/"; color: var(--color-line); }
.crumb a {
  color: var(--color-ink-soft);
  text-decoration: none;
  border-bottom: 1px dotted var(--color-line);
  transition: color 140ms ease-out, border-color 140ms ease-out;
}
.crumb a:hover { color: var(--color-primary); border-bottom-color: var(--color-primary); }

/* ---------- media frames ---------- */
.media-frame {
  position: relative;
  display: block;
  overflow: hidden;
  border: var(--border-thin) solid var(--color-line);
  background:
    repeating-linear-gradient(135deg, var(--color-surface-deep) 0 10px, var(--color-surface-alt) 10px 20px);
}
.media-frame > img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.media-frame--21x9 { aspect-ratio: 21 / 9; }
.media-frame--16x9 { aspect-ratio: 16 / 9; }
.media-frame--4x3 { aspect-ratio: 4 / 3; }
.media-frame--1x1 { aspect-ratio: 1 / 1; }
.media-frame__scrim {
  position: absolute;
  inset: 0;
  background: var(--overlay-scrim);
  pointer-events: none;
}
.media-frame__cap {
  position: absolute;
  left: var(--space-3);
  right: var(--space-3);
  bottom: var(--space-3);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  color: var(--color-contrast-ink);
}

/* ---------- timeline ---------- */
.timeline {
  list-style: none;
  padding-left: var(--space-4);
  border-left: 1px dotted var(--color-line);
}
.timeline__item {
  position: relative;
  padding-block: var(--space-3);
}
.timeline__item + .timeline__item { border-top: 1px dotted var(--color-line); }
.timeline__node {
  position: absolute;
  left: calc(-1 * var(--space-4) - 6px);
  top: calc(var(--space-3) + 7px);
  width: 12px;
  height: 12px;
  border: var(--border-thin) solid var(--color-primary);
  border-radius: 0;
  background: var(--color-surface);
  transition: background-color 160ms ease-out, box-shadow 160ms ease-out;
}
.timeline__item:hover .timeline__node {
  background: var(--color-primary);
  box-shadow: 0 0 12px rgba(31, 128, 148, 0.6);
}
.timeline__item:hover .timeline__node.lamp--accent {
  background: var(--color-accent);
  box-shadow: 0 0 12px rgba(218, 59, 37, 0.6);
}

/* ---------- index rail ---------- */
.index-rail {
  position: sticky;
  top: var(--space-4);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  list-style: none;
  border-left: 1px dotted var(--color-line);
  padding-left: var(--space-3);
}
.index-rail a { color: var(--color-ink-muted); text-decoration: none; }
.index-rail a:hover { color: var(--color-primary); }

/* ---------- reveal ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 200ms ease-out, transform 200ms ease-out;
}
[data-reveal].is-in { opacity: 1; transform: none; }

/* ---------- footer ---------- */
.site-footer {
  margin-top: var(--section-y-lg);
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  border-top: var(--border-thick) solid var(--color-primary);
}
.site-footer__inner {
  display: grid;
  grid-template-columns: minmax(230px, 1fr) minmax(0, 2fr) auto;
  gap: var(--space-6);
  align-items: start;
  padding-block: var(--section-y);
}
.site-footer__name {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  letter-spacing: 0.05em;
  color: var(--color-contrast-ink);
}
.site-footer__tag {
  margin-top: var(--space-1);
  font-size: var(--text-xs);
  letter-spacing: 0.16em;
  color: var(--color-contrast-accent);
}
.site-footer__desc {
  margin-top: var(--space-2);
  max-width: 34ch;
  font-size: var(--text-sm);
  color: color-mix(in srgb, var(--color-contrast-ink) 72%, transparent);
}
.site-footer__brand .btn { margin-top: var(--space-3); }
.site-footer__cols {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-4);
  border-left: 1px dotted var(--color-contrast-line);
  padding-left: var(--space-4);
}
.site-footer__title {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-contrast-accent);
  padding-bottom: var(--space-1);
  margin-bottom: var(--space-2);
  border-bottom: 1px dotted var(--color-contrast-line);
}
.site-footer__list { list-style: none; display: grid; gap: var(--space-1); }
.site-footer__list a {
  font-size: var(--text-sm);
  color: var(--color-contrast-ink);
  text-decoration: none;
  border-bottom: 1px dotted transparent;
  transition: color 140ms ease-out, border-color 140ms ease-out;
}
.site-footer__list a:hover { color: var(--color-contrast-accent); border-bottom-color: var(--color-contrast-accent); }
.site-footer__base {
  display: grid;
  gap: var(--space-1);
  padding-block: var(--space-4);
  border-top: 1px dotted var(--color-contrast-line);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  color: color-mix(in srgb, var(--color-contrast-ink) 70%, transparent);
}
.site-footer__contact { color: color-mix(in srgb, var(--color-contrast-ink) 88%, transparent); }

/* ---------- fog lamp graphic ---------- */
.fog-lamp {
  position: relative;
  width: 200px;
  aspect-ratio: 1 / 1;
  flex: none;
  justify-self: end;
  overflow: hidden;
  border: var(--border-thin) solid var(--color-contrast-line);
  border-radius: var(--radius-pill);
  background:
    radial-gradient(circle at 64% 30%, rgba(226, 102, 85, 0.42), transparent 58%),
    linear-gradient(160deg, #1d3336, #0f1c1e);
  box-shadow: inset 0 0 0 1px rgba(228, 230, 231, 0.08);
}
.fog-lamp__moon {
  position: absolute;
  top: 17%;
  right: 21%;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--color-contrast-ink);
  box-shadow: 0 0 30px rgba(226, 102, 85, 0.6);
}
.fog-lamp__ridge {
  position: absolute;
  inset: auto 0 0 0;
  height: 64%;
  background: linear-gradient(180deg, rgba(31, 128, 148, 0.55), rgba(23, 39, 42, 0.96));
  clip-path: polygon(0 62%, 17% 40%, 34% 58%, 52% 24%, 70% 52%, 86% 34%, 100% 58%, 100% 100%, 0 100%);
}
.fog-lamp__haze {
  position: absolute;
  inset: auto 0 0 0;
  height: 42%;
  background: repeating-linear-gradient(180deg, rgba(228, 230, 231, 0.14) 0 1px, transparent 1px 9px);
}

/* ---------- responsive ---------- */
@media (max-width: 1080px) {
  .site-footer__inner { grid-template-columns: minmax(200px, 1fr) minmax(0, 2fr); }
  .fog-lamp { display: none; }
}
@media (max-width: 980px) {
  .grid { grid-template-columns: repeat(6, minmax(0, 1fr)); }
}
@media (max-width: 860px) {
  .nav-toggle { display: inline-flex; position: static; transform: none; margin-left: auto; }
  .site-nav { display: none; }
  .site-nav[data-open] { display: block; }
  .site-nav__list { flex-direction: column; align-items: stretch; }
  .site-nav__link { justify-content: center; width: 100%; }
  .site-header__masthead-inner { justify-content: flex-start; gap: var(--space-2); }
  .brand__name { font-size: var(--text-lg); }
  .brand__mark { width: 34px; height: 34px; }
  .site-header__utility { font-size: var(--text-xs); line-height: 1.4; }
}
@media (max-width: 700px) {
  .site-header__bar-inner { flex-direction: column; align-items: flex-start; gap: 2px; }
  .site-footer__inner { grid-template-columns: 1fr; gap: var(--space-6); }
  .site-footer__cols { grid-template-columns: 1fr 1fr; border-left: 0; padding-left: 0; }
  .section { padding-block: var(--space-6); }
  .section--lg { padding-block: var(--space-8); }
}
@media (max-width: 640px) {
  .grid { grid-template-columns: 1fr; }
}

/* ---------- motion preference ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
  .status-strip__fill { animation: none; transform: none; }
  [data-reveal] { opacity: 1; transform: none; }
  .scroll-progress { display: none; }
}