:root {
  --color-surface: #efefef;
  --color-surface-alt: #e8e8e7;
  --color-surface-deep: #dedddc;
  --color-ink: #5e594f;
  --color-ink-soft: #716b60;
  --color-ink-muted: #888277;
  --color-line: #d5d4d2;
  --color-primary: #7d7463;
  --color-primary-ink: #ffffff;
  --color-primary-soft: #dfdedb;
  --color-accent: #a16953;
  --color-accent-ink: #ffffff;
  --color-highlight: #e1d7d3;
  --color-focus: #9c5940;
  --color-contrast-surface: #252320;
  --color-contrast-ink: #e7e6e4;
  --color-contrast-line: #504e4b;
  --color-contrast-accent: #b37f6b;
  --overlay-scrim: linear-gradient(180deg, rgba(37, 35, 32, 0.35) 0%, rgba(37, 35, 32, 0.72) 55%, rgba(37, 35, 32, 0.92) 100%);
  --font-heading: "Songti SC", STSong, "Source Han Serif SC", SimSun, serif;
  --font-body: "Songti SC", STSong, "Source Han Serif SC", SimSun, serif;
  --font-mono: ui-monospace, Menlo, Consolas, monospace;
  --text-xs: 13.8px;
  --text-sm: 15.9px;
  --text-base: 17px;
  --text-lg: 19.5px;
  --text-xl: 22.5px;
  --text-2xl: 25.9px;
  --text-3xl: 29.7px;
  --text-4xl: 34.2px;
  --text-display: clamp(34px, 6.9vw, 88px);
  --text-figure: clamp(28px, 4.9vw, 63px);
  --weight-heading: 480;
  --weight-body: 400;
  --leading-body: 1.94;
  --leading-heading: 1.2;
  --tracking-heading: 0.008em;
  --radius-sm: 0px;
  --radius-md: 0px;
  --radius-lg: 0px;
  --radius-pill: 0px;
  --border-thin: 1px;
  --border-thick: 1px;
  --shadow-1: none;
  --shadow-2: none;
  --space-1: 8px;
  --space-2: 16px;
  --space-3: 24px;
  --space-4: 32px;
  --space-6: 48px;
  --space-8: 64px;
  --container: 1020px;
  --measure: 65ch;
  --gutter: 32px;
  --section-y: 143px;
  --section-y-lg: 200px;
}

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 104px;
  background: var(--color-surface);
}

body,
h1, h2, h3, h4, h5, h6,
p, figure, blockquote, dl, dd, dt,
ul, ol, li, fieldset, legend, summary {
  margin: 0;
  padding: 0;
}

ul, ol { list-style: none; }
img, svg, video { display: block; max-width: 100%; height: auto; }
button { font: inherit; color: inherit; background: none; border: 0; }
fieldset { border: 0; min-width: 0; }
legend { padding: 0; }
summary { cursor: pointer; }
summary::-webkit-details-marker { display: none; }

/* ---------- base ---------- */
body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: var(--weight-body);
  line-height: var(--leading-body);
  color: var(--color-ink);
  background: var(--color-surface);
  min-height: 100vh;
  letter-spacing: 0.012em;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4, h5, h6,
.brand__mark,
.footer-panel__brand,
.stat__figure,
.entry__index {
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
}

h1 { font-size: var(--text-4xl); }
h2 { font-size: var(--text-3xl); }
h3 { font-size: var(--text-2xl); }
h4 { font-size: var(--text-xl); }

p { line-height: var(--leading-body); }

a { color: var(--color-accent); text-decoration: none; }
a:hover { color: var(--color-focus); }

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

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

/* ---------- layout ---------- */
.shell {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--space-3);
}

@media (min-width: 720px) {
  .shell { padding-inline: var(--space-4); }
}

.page { padding-top: var(--space-8); }

.section { margin-top: var(--section-y); }
.section--lg { margin-top: var(--section-y-lg); }
.section--ruled { border-top: var(--border-thin) solid var(--color-line); padding-top: var(--space-6); }

.grid-12 {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: var(--gutter);
}

.col-4 { grid-column: span 12; }
.col-5 { grid-column: span 12; }
.col-6 { grid-column: span 12; }
.col-7 { grid-column: span 12; }
.col-8 { grid-column: span 12; }
.col-9 { grid-column: span 12; }
.col-12 { grid-column: span 12; }

@media (min-width: 860px) {
  .col-4 { grid-column: span 4; }
  .col-5 { grid-column: span 5; }
  .col-6 { grid-column: span 6; }
  .col-7 { grid-column: span 7; }
  .col-8 { grid-column: span 8; }
  .col-9 { grid-column: span 9; }
}

.split { display: grid; gap: var(--gutter); grid-template-columns: minmax(0, 1fr); }

@media (min-width: 900px) {
  .split { grid-template-columns: repeat(12, minmax(0, 1fr)); }
  .split__main { grid-column: 1 / span 7; }
  .split__aside { grid-column: 9 / span 4; }
  .split--flip .split__main { grid-column: 6 / span 7; }
  .split--flip .split__aside { grid-column: 1 / span 4; }
}

.prose { max-width: var(--measure); }
.prose > * + * { margin-top: var(--space-3); }
.prose h2, .prose h3 { margin-top: var(--space-6); }
.prose ul, .prose ol { padding-left: 1.4em; list-style: disc; }
.prose li + li { margin-top: var(--space-1); }

/* ---------- skip link ---------- */
.skip-link {
  position: absolute;
  left: var(--space-3);
  top: -80px;
  z-index: 90;
  display: inline-block;
  padding: 10px 18px;
  background: var(--color-primary);
  color: var(--color-primary-ink);
  font-size: var(--text-sm);
  letter-spacing: 0.1em;
  transition: top 220ms ease-out;
}

.skip-link:focus { top: var(--space-2); color: var(--color-primary-ink); }

/* ---------- header ---------- */
.site-header {
  position: relative;
  z-index: 40;
  background: var(--color-surface);
}

.scroll-progress {
  position: fixed;
  inset-inline: 0;
  top: 0;
  height: 1px;
  z-index: 70;
  pointer-events: none;
  background: transparent;
}

.scroll-progress__bar {
  display: block;
  width: 100%;
  height: 100%;
  transform: scaleX(0);
  transform-origin: left center;
  background: var(--color-accent);
}

.utility {
  background: var(--color-surface-alt);
  border-bottom: var(--border-thin) solid var(--color-line);
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
  letter-spacing: 0.09em;
}

.utility__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-1) var(--space-4);
  padding-block: var(--space-2);
}

.utility__brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-ink-soft);
  line-height: 1.4;
}

.utility__mark { color: var(--color-ink); letter-spacing: 0.2em; }

.utility__dot {
  display: inline-block;
  width: 5px;
  height: 5px;
  background: var(--color-accent);
}

.utility__scope { flex: 1 1 220px; line-height: 1.6; }

.utility__note { line-height: 1.6; }

.utility__cta {
  color: var(--color-accent);
  padding-bottom: 2px;
  border-bottom: var(--border-thin) solid color-mix(in srgb, var(--color-accent) 42%, transparent);
  transition: color 240ms ease-out, border-color 240ms ease-out;
}

.utility__cta:hover { color: var(--color-focus); border-color: var(--color-focus); }

.bar {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--color-surface) 94%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: var(--border-thin) solid var(--color-line);
}

.bar__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3) var(--space-4);
  padding-block: var(--space-3);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-ink);
}

.brand::before {
  content: "";
  display: block;
  width: 8px;
  height: 8px;
  background: var(--color-primary);
  flex: none;
}

.brand__mark { font-size: var(--text-xl); letter-spacing: 0.18em; }
.brand__sub { font-size: var(--text-xs); color: var(--color-ink-muted); letter-spacing: 0.16em; }

.nav-toggle {
  display: none;
  align-items: center;
  gap: var(--space-2);
  padding: 8px 12px;
  border: var(--border-thin) solid var(--color-line);
  color: var(--color-ink-soft);
  font-size: var(--text-xs);
  letter-spacing: 0.16em;
  transition: color 240ms ease-out, border-color 240ms ease-out;
}

.nav-toggle__icon {
  display: block;
  width: 16px;
  height: 9px;
  border-top: var(--border-thin) solid currentColor;
  border-bottom: var(--border-thin) solid currentColor;
}

.nav-toggle:hover { color: var(--color-ink); border-color: var(--color-primary); }
.nav-toggle[aria-expanded="true"] { color: var(--color-ink); border-color: var(--color-primary); }

.nav {
  display: flex;
  flex: 1 1 auto;
  justify-content: flex-end;
}

.nav__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2) var(--space-4);
}

.nav__item { position: relative; }

.nav__link {
  position: relative;
  display: inline-block;
  padding-block: 6px;
  font-size: var(--text-sm);
  letter-spacing: 0.1em;
  color: var(--color-ink-soft);
  transition: color 240ms ease-out;
}

.nav__link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: var(--border-thin);
  background: var(--color-primary);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 280ms ease-out, background-color 280ms ease-out;
}

.nav__link:hover { color: var(--color-ink); }
.nav__link:hover::after { transform: scaleX(1); }

.nav__link[aria-current="page"] { color: var(--color-ink); }
.nav__link[aria-current="page"]::after {
  transform: scaleX(1);
  background: var(--color-accent);
}

/* ---------- data panel ---------- */
.panel {
  background: var(--color-surface-alt);
  border-top: var(--border-thin) solid var(--color-line);
  padding-inline: max(var(--space-3), calc((100% - var(--container)) / 2 + var(--space-3)));
}

.panel__summary {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-1) var(--space-3);
  padding-block: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
  letter-spacing: 0.12em;
}

.panel__summary-label { display: inline-flex; align-items: center; gap: var(--space-2); }

.panel__summary-label::before {
  content: "";
  display: block;
  width: 14px;
  height: var(--border-thin);
  background: var(--color-primary);
}

.panel__summary-value { color: var(--color-ink-soft); font-size: var(--text-xs); }

.panel__body {
  display: grid;
  gap: var(--space-3);
  padding-block: var(--space-2) var(--space-4);
}

.panel__group { display: grid; gap: var(--space-2); }

.panel__legend {
  font-size: var(--text-xs);
  letter-spacing: 0.2em;
  color: var(--color-ink-muted);
}

.panel__row { display: flex; flex-wrap: wrap; gap: var(--space-1); }

.panel__status {
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
  letter-spacing: 0.08em;
}

.chip {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  padding: 5px 11px;
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  color: var(--color-ink-soft);
  background: var(--color-surface);
  border: var(--border-thin) solid var(--color-line);
  transition: color 220ms ease-out, background-color 220ms ease-out, border-color 220ms ease-out;
}

.chip:hover { color: var(--color-ink); border-color: var(--color-primary); }

.chip[aria-pressed="true"] {
  color: var(--color-primary-ink);
  background: var(--color-primary);
  border-color: var(--color-primary);
}

@media (min-width: 760px) {
  .panel__body { grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr); align-items: start; }
  .panel__status { grid-column: 1 / -1; }
}

@media (min-width: 1400px) {
  .panel {
    position: fixed;
    top: 44%;
    left: max(var(--space-3), calc((100vw - var(--container)) / 2 - 176px));
    width: 152px;
    z-index: 45;
    background: transparent;
    border-top: 0;
    border-left: var(--border-thin) solid var(--color-line);
    padding: 0 0 0 var(--space-3);
  }

  .panel__summary {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    padding: 0;
    font-size: var(--text-xs);
  }

  .panel__summary-value { font-size: var(--text-xs); }

  .panel__body {
    grid-template-columns: minmax(0, 1fr);
    gap: var(--space-3);
    padding-block: var(--space-3) 0;
  }

  .panel__row { gap: 6px; }

  .chip {
    min-height: 28px;
    padding: 3px 8px;
    font-size: var(--text-xs);
  }
}

/* ---------- mobile nav ---------- */
@media (max-width: 899px) {
  .nav-toggle { display: inline-flex; }

  .js-reveal .nav { display: none; }
  .js-reveal .nav[data-open] { display: block; }

  .nav {
    flex: 1 1 100%;
    justify-content: flex-start;
    margin-top: var(--space-3);
    padding-top: var(--space-2);
    border-top: var(--border-thin) solid var(--color-line);
  }

  .nav__list { flex-direction: column; align-items: stretch; gap: 0; width: 100%; }

  .nav__item { border-bottom: var(--border-thin) solid var(--color-line); }

  .nav__link {
    display: block;
    padding-block: var(--space-3);
    font-size: var(--text-base);
  }

  .nav__link::after { display: none; }

  .nav__link[aria-current="page"] { color: var(--color-accent); }
}

/* ---------- buttons & links ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: 12px 22px;
  font-size: var(--text-sm);
  letter-spacing: 0.1em;
  color: var(--color-ink);
  background: transparent;
  border: var(--border-thin) solid var(--color-line);
  transition: color 280ms ease-out, background-color 280ms ease-out, border-color 280ms ease-out;
}

.btn:hover { color: var(--color-accent); border-color: var(--color-accent); }

.btn--solid {
  color: var(--color-primary-ink);
  background: var(--color-primary);
  border-color: var(--color-primary);
}

.btn--solid:hover {
  color: var(--color-primary-ink);
  background: var(--color-focus);
  border-color: var(--color-focus);
}

.btn--line { background: transparent; }

.btn--accent {
  color: var(--color-accent-ink);
  background: var(--color-accent);
  border-color: var(--color-accent);
}

.btn--accent:hover {
  color: var(--color-accent-ink);
  background: var(--color-focus);
  border-color: var(--color-focus);
}

.link-arrow {
  display: inline-flex;
  align-items: baseline;
  gap: var(--space-1);
  font-size: var(--text-sm);
  letter-spacing: 0.06em;
  color: var(--color-accent);
  border-bottom: var(--border-thin) solid color-mix(in srgb, var(--color-accent) 42%, transparent);
  padding-bottom: 2px;
  transition: color 240ms ease-out, border-color 240ms ease-out;
}

.link-arrow::after { content: "\2192"; }
.link-arrow:hover { color: var(--color-focus); border-color: var(--color-focus); }

/* ---------- section head / text blocks ---------- */
.section-head {
  display: grid;
  gap: var(--space-3);
  padding-top: var(--space-3);
  border-top: var(--border-thin) solid var(--color-line);
}

.section-head__kicker {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  letter-spacing: 0.22em;
  color: var(--color-ink-muted);
}

.section-head__kicker::before {
  content: "";
  display: block;
  width: 18px;
  height: var(--border-thin);
  background: var(--color-primary);
  transition: width 320ms ease-out, background-color 320ms ease-out;
}

[data-section].is-current .section-head__kicker::before { width: 44px; background: var(--color-accent); }
[data-section].is-current .section-head__title { color: var(--color-ink); }

.section-head__title { font-size: var(--text-3xl); }
.section-head__lead { font-size: var(--text-lg); line-height: 1.7; color: var(--color-ink-soft); max-width: 54ch; }

.kicker {
  display: inline-block;
  font-size: var(--text-xs);
  letter-spacing: 0.22em;
  color: var(--color-ink-muted);
}

.tag {
  display: inline-block;
  padding: 4px 10px;
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  color: var(--color-ink-soft);
  background: var(--color-primary-soft);
}

.tag--accent { color: var(--color-accent-ink); background: var(--color-accent); }

.rule {
  border: 0;
  border-top: var(--border-thin) solid var(--color-line);
  margin-block: var(--space-6);
}

.aside-note {
  padding-left: var(--space-3);
  border-left: var(--border-thin) solid var(--color-line);
  font-size: var(--text-sm);
  line-height: 1.75;
  color: var(--color-ink-muted);
}

/* ---------- contrast band ---------- */
.band {
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
}

.band__inner { padding-block: var(--space-6); }

.band h2, .band h3, .band .section-head__title { color: var(--color-contrast-ink); }
.band .section-head { border-top-color: var(--color-contrast-line); }
.band .section-head__kicker { color: color-mix(in srgb, var(--color-contrast-ink) 58%, transparent); }
.band .section-head__kicker::before { background: var(--color-contrast-accent); }
.band .section-head__lead { color: color-mix(in srgb, var(--color-contrast-ink) 78%, transparent); }
.band .rule { border-top-color: var(--color-contrast-line); }
.band .stat__figure { color: var(--color-contrast-accent); }
.band .stat__label { color: color-mix(in srgb, var(--color-contrast-ink) 60%, transparent); }
.band .data-list { border-top-color: var(--color-contrast-line); }
.band .data-row { border-bottom-color: var(--color-contrast-line); }
.band .data-row__key { color: color-mix(in srgb, var(--color-contrast-ink) 72%, transparent); }
.band .data-row__value { color: var(--color-contrast-accent); }
.band .data-row:hover { background: color-mix(in srgb, var(--color-contrast-ink) 8%, transparent); }

/* ---------- stats & data ---------- */
.stat { display: block; }

.stat__figure {
  display: block;
  font-size: var(--text-figure);
  line-height: 1;
  letter-spacing: -0.01em;
  color: var(--color-accent);
  font-variant-numeric: tabular-nums;
}

.stat__label {
  display: block;
  margin-top: var(--space-2);
  font-size: var(--text-xs);
  letter-spacing: 0.16em;
  color: var(--color-ink-muted);
}

.data-list { border-top: var(--border-thin) solid var(--color-line); }

.data-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: var(--space-3);
  align-items: baseline;
  padding-block: var(--space-2);
  border-bottom: var(--border-thin) solid var(--color-line);
  line-height: 1.15;
  transition: background-color 240ms ease-out;
}

.data-row:hover { background: var(--color-highlight); }

.data-row__key { font-size: var(--text-sm); color: var(--color-ink-soft); }

.data-row__value {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  color: var(--color-accent);
  font-variant-numeric: tabular-nums;
}

/* ---------- entries & folds ---------- */
.entry {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-2);
  padding-block: var(--space-3);
  border-bottom: var(--border-thin) solid var(--color-line);
}

@media (min-width: 640px) {
  .entry { grid-template-columns: 64px minmax(0, 1fr); gap: var(--space-3); }
}

.entry__index { font-size: var(--text-sm); letter-spacing: 0.16em; color: var(--color-primary); }
.entry__title { font-size: var(--text-xl); }
.entry__meta { margin-top: var(--space-2); font-size: var(--text-sm); color: var(--color-ink-muted); line-height: 1.7; }

.fold {
  background: var(--color-surface-deep);
  border-bottom: var(--border-thin) solid var(--color-line);
}

.fold__summary {
  padding: var(--space-3);
  font-size: var(--text-sm);
  letter-spacing: 0.1em;
  color: var(--color-ink-soft);
  transition: color 240ms ease-out;
}

.fold__summary:hover { color: var(--color-accent); }
.fold__body { padding: 0 var(--space-3) var(--space-4); font-size: var(--text-sm); line-height: 1.8; color: var(--color-ink-soft); }

/* ---------- breadcrumb ---------- */
.breadcrumb { font-size: var(--text-xs); letter-spacing: 0.1em; color: var(--color-ink-muted); }
.breadcrumb__list { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-1) var(--space-2); }
.breadcrumb__item { display: inline-flex; align-items: center; color: var(--color-ink-muted); }
.breadcrumb__item + .breadcrumb__item::before { content: "/"; margin-right: var(--space-2); color: var(--color-line); }
.breadcrumb__item a { color: var(--color-ink-soft); border-bottom: var(--border-thin) solid var(--color-line); }
.breadcrumb__item a:hover { color: var(--color-accent); border-color: var(--color-accent); }

/* ---------- image plates ---------- */
.plate {
  display: block;
  background: var(--color-surface-alt);
  border: var(--border-thin) solid var(--color-line);
  padding: var(--space-2);
}

.plate__media {
  position: relative;
  display: block;
  overflow: hidden;
  background: var(--color-surface-deep);
  aspect-ratio: 4 / 3;
}

.plate--wide .plate__media { aspect-ratio: 16 / 9; }
.plate--tall .plate__media { aspect-ratio: 3 / 4; }

.plate__img { width: 100%; height: 100%; object-fit: cover; }

.plate--overlay .plate__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--overlay-scrim);
}

.plate__label {
  position: absolute;
  left: var(--space-3);
  bottom: var(--space-3);
  z-index: 1;
  max-width: 32ch;
  font-size: var(--text-sm);
  line-height: 1.5;
  color: var(--color-contrast-ink);
}

.plate__caption {
  margin-top: var(--space-2);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  color: var(--color-ink-muted);
  line-height: 1.6;
}

/* ---------- footer ---------- */
.site-footer {
  margin-top: var(--section-y);
  background: var(--color-surface-alt);
  border-top: var(--border-thin) solid var(--color-line);
  padding-block: var(--space-8) var(--space-6);
}

.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  border-top: var(--border-thin) solid var(--color-line);
}

@media (min-width: 720px) {
  .footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); column-gap: var(--gutter); }
}

@media (min-width: 1080px) {
  .footer-grid { grid-template-columns: 1.25fr 1.1fr 0.85fr 0.85fr; }
}

.footer-panel {
  min-width: 0;
  padding: var(--space-4) 0;
  border-bottom: var(--border-thin) solid var(--color-line);
}

.footer-panel--contrast {
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  padding: var(--space-4);
  border-bottom: 0;
}

.footer-panel__title {
  margin-bottom: var(--space-3);
  font-size: var(--text-xs);
  letter-spacing: 0.24em;
  color: var(--color-ink-muted);
}

.footer-panel--contrast .footer-panel__title { color: color-mix(in srgb, var(--color-contrast-ink) 55%, transparent); }

.footer-panel__brand {
  font-size: var(--text-2xl);
  letter-spacing: 0.18em;
  color: var(--color-contrast-ink);
}

.footer-panel__lead {
  margin-top: var(--space-3);
  max-width: 30ch;
  font-size: var(--text-sm);
  line-height: 1.75;
  color: color-mix(in srgb, var(--color-contrast-ink) 80%, transparent);
}

.footer-panel__meta {
  margin-top: var(--space-4);
  padding-top: var(--space-3);
  border-top: var(--border-thin) solid var(--color-contrast-line);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  line-height: 1.7;
  color: color-mix(in srgb, var(--color-contrast-ink) 62%, transparent);
}

.footer-list { display: grid; gap: var(--space-1); font-size: var(--text-sm); }
.footer-list dt { font-size: var(--text-xs); letter-spacing: 0.16em; color: var(--color-ink-muted); }
.footer-list dd { margin-bottom: var(--space-2); color: var(--color-ink-soft); line-height: 1.75; word-break: break-word; }
.footer-list dd:last-child { margin-bottom: 0; }

.footer-links { display: grid; gap: var(--space-2); font-size: var(--text-sm); }

.footer-links a {
  color: var(--color-ink-soft);
  padding-bottom: 2px;
  border-bottom: var(--border-thin) solid transparent;
  transition: color 240ms ease-out, border-color 240ms ease-out;
}

.footer-links a:hover { color: var(--color-accent); border-color: var(--color-accent); }
.footer-links a[aria-current="page"] { color: var(--color-ink); border-color: var(--color-primary); }

.footer-base {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-2) var(--space-4);
  margin-top: var(--space-6);
  padding-top: var(--space-3);
  border-top: var(--border-thin) solid var(--color-line);
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  color: var(--color-ink-muted);
  line-height: 1.7;
}

/* ---------- motion ---------- */
.js-reveal [data-reveal] {
  opacity: 0.6;
  transform: translateY(12px);
  transition: opacity 320ms ease-out, transform 320ms ease-out;
}

.js-reveal [data-reveal].is-revealed {
  opacity: 1;
  transform: none;
}

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

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

  .js-reveal [data-reveal] { opacity: 1; transform: none; }
  .scroll-progress__bar { transition: none; }
}