/* ============================================================
   火博赛场 · 共享站点样式 /assets/site.css
   暖纸 + 深墨分区 · 品牌红锚点 · 荧光青数据流 · 琥珀提醒
   ============================================================ */

/* ---------- 1. Reset ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body { margin: 0; }

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

h1, h2, h3, h4, h5, h6, p, figure, blockquote, ul, ol, dl, dd { margin: 0; }

ul, ol { padding: 0; list-style: none; }

a { color: inherit; }

button { font: inherit; color: inherit; background: none; border: 0; }

table { width: 100%; border-collapse: collapse; }

/* ---------- 2. Tokens ---------- */
:root {
  --ink: #141414;
  --ink-2: #1A1A1A;
  --paper: #F6F1E7;
  --cool: #F1F1F1;
  --line: #D8D2C6;
  --line-ink: rgba(246, 241, 231, 0.16);
  --red: #E63946;
  --red-dark: #B82B37;
  --red-deep: #A3232F;
  --cyan: #00E5FF;
  --amber: #FFB703;
  --gray: #6B6B6B;
  --white: #FFFFFF;

  --font-display: "Noto Serif SC", "Source Han Serif SC", "Songti SC", serif;
  --font-narrow: "Oswald", "Archivo Narrow", "Arial Narrow", sans-serif;
  --font-body: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-data: "IBM Plex Mono", "JetBrains Mono", ui-monospace, monospace;

  --shell: 1440px;
  --gutter: clamp(18px, 4vw, 64px);
  --gap: clamp(20px, 2.6vw, 40px);
  --header-h: 76px;
  --ease: cubic-bezier(0.2, 0.8, 0.2, 1);
  --shadow-1: 0 1px 0 rgba(20, 20, 20, 0.06), 0 18px 40px -26px rgba(20, 20, 20, 0.42);
}

/* ---------- 3. Base typography ---------- */
body {
  padding-top: var(--header-h);
  font-family: var(--font-body);
  font-size: clamp(15px, 0.5vw + 13.6px, 17px);
  font-weight: 400;
  line-height: 1.8;
  color: var(--ink);
  background-color: var(--paper);
  background-image:
    radial-gradient(1100px 620px at 88% -10%, rgba(230, 57, 70, 0.06), transparent 62%),
    radial-gradient(880px 520px at -12% 18%, rgba(0, 229, 255, 0.05), transparent 58%),
    repeating-linear-gradient(115deg, rgba(20, 20, 20, 0.022) 0 1px, transparent 1px 96px);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.24;
  letter-spacing: 0.01em;
}

h1 { font-size: clamp(34px, 5.2vw, 76px); }
h2 { font-size: clamp(26px, 3.2vw, 44px); }
h3 { font-size: clamp(20px, 1.8vw, 28px); }
h4 { font-size: clamp(17px, 1.2vw, 21px); }

strong { font-weight: 600; }

::selection {
  background: var(--red);
  color: var(--white);
}

:where(a, button, input, select, textarea, summary, [tabindex]):focus-visible {
  outline: 3px solid var(--red);
  outline-offset: 2px;
  border-radius: 2px;
}

.site-header :where(a, button):focus-visible,
.site-footer :where(a, button):focus-visible {
  outline: 3px solid var(--cyan);
  outline-offset: 2px;
}

/* ---------- 4. Layout primitives ---------- */
.container {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.narrow { max-width: 760px; }

.prose {
  max-width: 74ch;
  font-size: clamp(15px, 0.45vw + 13.7px, 17px);
  line-height: 1.85;
}

.prose p + p { margin-top: 1em; }
.prose h2, .prose h3 { margin-top: 1.9em; }

.lede {
  max-width: 58ch;
  font-size: clamp(16px, 1vw + 13px, 20px);
  line-height: 1.75;
  color: var(--ink);
}

.section {
  position: relative;
  padding-block: clamp(52px, 7.5vw, 116px);
}

.section--ink {
  background: var(--ink);
  color: var(--paper);
}

.section--ink .eyebrow { color: rgba(246, 241, 231, 0.55); }
.section--ink .lede { color: rgba(246, 241, 231, 0.82); }
.section--ink .prose { color: rgba(246, 241, 231, 0.84); }

.section--cool {
  background: var(--cool);
}

.section--edge {
  border-top: 1px solid var(--line);
}

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

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

/* ---------- 5. Editorial labels ---------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.7em;
  font-family: var(--font-narrow);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--gray);
}

.eyebrow::before {
  content: "";
  width: 30px;
  height: 1px;
  background: var(--red);
  flex: 0 0 auto;
}

.chapter-no {
  display: inline-block;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--red);
}

/* ---------- 6. Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55em;
  padding: 11px 20px;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.04em;
  line-height: 1.4;
  text-decoration: none;
  border: 1px solid transparent;
  border-radius: 2px;
  cursor: pointer;
  transition: background-color 0.22s var(--ease), color 0.22s var(--ease),
    border-color 0.22s var(--ease), transform 0.22s var(--ease), box-shadow 0.22s var(--ease);
}

.btn--primary {
  background: var(--red-dark);
  color: var(--white);
  border-color: var(--red-dark);
}

.btn--primary:hover {
  background: var(--red-deep);
  border-color: var(--red-deep);
  transform: translateY(-1px);
  box-shadow: 0 12px 22px -14px rgba(20, 20, 20, 0.75);
}

.btn--ghost {
  background: transparent;
  color: var(--paper);
  border-color: rgba(246, 241, 231, 0.36);
}

.btn--ghost:hover {
  color: var(--cyan);
  border-color: var(--cyan);
  transform: translateY(-1px);
}

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

.btn--outline:hover {
  background: var(--ink);
  color: var(--paper);
  transform: translateY(-1px);
}

/* ---------- 7. Tags ---------- */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 0.45em;
  padding: 3px 9px;
  font-family: var(--font-narrow);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  line-height: 1.6;
  border: 1px solid currentColor;
  border-radius: 1px;
  color: var(--gray);
  white-space: nowrap;
}

.tag--red { color: var(--red-dark); }

.tag--cyan {
  color: var(--ink);
  border-color: var(--cyan);
  background: rgba(0, 229, 255, 0.16);
}

.tag--amber {
  color: #7A5A00;
  border-color: var(--amber);
  background: rgba(255, 183, 3, 0.18);
}

/* ---------- 8. Data units ---------- */
.stat { display: grid; gap: 6px; }

.stat__value {
  font-family: var(--font-data);
  font-size: clamp(26px, 4.2vw, 54px);
  font-weight: 600;
  line-height: 1.05;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.stat__label {
  font-family: var(--font-narrow);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gray);
}

.section--ink .stat__value { color: var(--paper); }
.section--ink .stat__label { color: rgba(246, 241, 231, 0.55); }

.meter {
  position: relative;
  height: 6px;
  overflow: hidden;
  border-radius: 1px;
  background: rgba(20, 20, 20, 0.1);
}

.section--ink .meter { background: rgba(246, 241, 231, 0.16); }

.meter__fill {
  display: block;
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--red), var(--amber));
  transition: width 0.9s var(--ease);
}

/* ---------- 9. Media containers ---------- */
.media {
  position: relative;
  overflow: hidden;
  background: var(--ink);
  border: 1px solid var(--line);
  border-radius: 2px;
}

.media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.media--wide { aspect-ratio: 16 / 9; }
.media--tall { aspect-ratio: 3 / 4; }
.media--square { aspect-ratio: 1 / 1; }

.media--grid::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(0, 229, 255, 0.16) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(0, 229, 255, 0.16) 1px, transparent 1px);
  background-size: 56px 56px;
  mix-blend-mode: screen;
}

.media--placeholder {
  display: grid;
  place-items: center;
  color: rgba(246, 241, 231, 0.4);
  font-family: var(--font-narrow);
  font-size: 11px;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  background-color: var(--ink);
  background-image: repeating-linear-gradient(
    135deg,
    rgba(246, 241, 231, 0.05) 0 2px,
    transparent 2px 11px
  );
}

.media__caption {
  position: absolute;
  inset: auto 0 0 0;
  padding: 14px 16px;
  font-family: var(--font-data);
  font-size: 12px;
  line-height: 1.6;
  color: var(--paper);
  background: linear-gradient(180deg, transparent, rgba(20, 20, 20, 0.88));
}

/* ---------- 10. Breadcrumbs ---------- */
.crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.55em;
  font-family: var(--font-narrow);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gray);
}

.crumbs li { display: inline-flex; align-items: center; }

.crumbs li::after {
  content: "/";
  margin-left: 0.55em;
  color: var(--line);
}

.crumbs li:last-child::after { display: none; }

.crumbs a { text-decoration: none; }
.crumbs a:hover { color: var(--red-dark); }

/* ---------- 11. Skip link ---------- */
.skip-link {
  position: fixed;
  top: 8px;
  left: 8px;
  z-index: 200;
  padding: 10px 18px;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  color: var(--ink);
  background: var(--paper);
  border: 1px solid var(--ink);
  border-radius: 2px;
  transform: translateY(-180%);
  transition: transform 0.2s var(--ease);
}

.skip-link:focus,
.skip-link:focus-visible { transform: translateY(0); }

/* ---------- 12. Header ---------- */
.site-header {
  --h: var(--header-h);
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  color: var(--paper);
  background: rgba(20, 20, 20, 0.78);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  backdrop-filter: blur(14px) saturate(140%);
  border-bottom: 1px solid var(--line-ink);
  transition: background-color 0.28s var(--ease), border-color 0.28s var(--ease),
    box-shadow 0.28s var(--ease);
}

.site-header.is-stuck {
  --h: 60px;
  background: var(--ink-2);
  border-bottom-color: rgba(246, 241, 231, 0.1);
  box-shadow: 0 22px 42px -30px rgba(0, 0, 0, 0.95);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: clamp(10px, 1.6vw, 26px);
  width: 100%;
  max-width: var(--shell);
  height: var(--h);
  margin-inline: auto;
  padding-inline: var(--gutter);
  transition: height 0.28s var(--ease);
}

/* brand */
.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  flex: 0 0 auto;
  text-decoration: none;
  color: inherit;
}

.brand__mark {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 700;
  line-height: 1;
  color: var(--white);
  background: var(--red);
  clip-path: polygon(0 0, 100% 0, 100% 74%, 74% 100%, 0 100%);
  transition: background-color 0.22s var(--ease);
}

.brand:hover .brand__mark { background: var(--cyan); color: var(--ink); }

.brand__text { display: grid; gap: 1px; }

.brand__name {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: 0.02em;
}

.brand__tagline {
  font-family: var(--font-narrow);
  font-size: 10px;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: rgba(246, 241, 231, 0.52);
}

.header-utility {
  flex: 0 0 auto;
  padding-left: clamp(10px, 1.4vw, 20px);
  border-left: 1px solid rgba(246, 241, 231, 0.18);
  font-family: var(--font-narrow);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(246, 241, 231, 0.5);
  white-space: nowrap;
}

/* nav */
.site-nav {
  flex: 1 1 auto;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: clamp(6px, 1.2vw, 20px);
}

.site-nav__list {
  display: flex;
  align-items: center;
  gap: clamp(0px, 0.7vw, 12px);
}

.site-nav__link {
  position: relative;
  display: inline-block;
  padding: 10px clamp(6px, 0.8vw, 11px);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-decoration: none;
  color: rgba(246, 241, 231, 0.74);
  transition: color 0.2s var(--ease);
}

.site-nav__link::after {
  content: "";
  position: absolute;
  left: clamp(6px, 0.8vw, 11px);
  right: clamp(6px, 0.8vw, 11px);
  bottom: 3px;
  height: 2px;
  background: var(--red);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.24s var(--ease), background-color 0.24s var(--ease);
}

.site-nav__link:hover { color: var(--white); }
.site-nav__link:hover::after { transform: scaleX(1); background: var(--cyan); }

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

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

.site-nav__cta { display: none; }

.header-cta { display: none; flex: 0 0 auto; }

/* toggle */
.nav-toggle {
  display: none;
  flex: 0 0 auto;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  width: 42px;
  height: 42px;
  color: var(--paper);
  border: 1px solid rgba(246, 241, 231, 0.32);
  border-radius: 2px;
  cursor: pointer;
  transition: border-color 0.22s var(--ease), color 0.22s var(--ease);
}

.nav-toggle:hover { border-color: var(--cyan); color: var(--cyan); }

.nav-toggle__bar {
  display: block;
  width: 18px;
  height: 2px;
  background: currentColor;
  transition: transform 0.24s var(--ease), opacity 0.18s var(--ease);
}

.site-header[data-open="true"] .nav-toggle__bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.site-header[data-open="true"] .nav-toggle__bar:nth-child(2) { opacity: 0; }

.site-header[data-open="true"] .nav-toggle__bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* progress */
.scroll-progress {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 2px;
  overflow: hidden;
  background: rgba(246, 241, 231, 0.12);
}

.scroll-progress__bar {
  display: block;
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, var(--red), var(--amber) 55%, var(--cyan));
}

/* ---------- 13. Footer ---------- */
.site-footer {
  position: relative;
  padding-top: clamp(48px, 6.5vw, 92px);
  color: rgba(246, 241, 231, 0.74);
  background: var(--ink-2);
}

.site-footer::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--red), transparent);
  opacity: 0.7;
}

.footer-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(0, 0.8fr) minmax(0, 0.8fr) minmax(0, 0.8fr) minmax(0, 1.35fr);
  gap: clamp(24px, 3vw, 48px);
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding: 0 var(--gutter) clamp(40px, 5vw, 68px);
}

.footer-brand { display: grid; gap: 14px; align-content: start; }

.brand--footer .brand__name { font-size: 18px; }

.brand--footer .brand__tagline { color: rgba(246, 241, 231, 0.48); }

.footer-brand__line {
  max-width: 34ch;
  font-size: 14px;
  line-height: 1.85;
  color: rgba(246, 241, 231, 0.7);
}

.footer-brand__meta {
  font-family: var(--font-narrow);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(246, 241, 231, 0.4);
}

.footer-col { display: grid; gap: 12px; align-content: start; }

.footer-col__title {
  font-family: var(--font-narrow);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: rgba(246, 241, 231, 0.44);
}

.footer-links { display: grid; gap: 9px; }

.footer-link {
  display: inline-block;
  padding-bottom: 1px;
  font-size: 14px;
  text-decoration: none;
  color: rgba(246, 241, 231, 0.76);
  border-bottom: 1px solid transparent;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.footer-link:hover,
.footer-link:focus-visible {
  color: var(--white);
  border-bottom-color: var(--cyan);
}

.footer-contact { gap: 10px; }

.copy-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  width: 100%;
  padding: 9px 12px;
  text-align: left;
  color: var(--paper);
  background: rgba(246, 241, 231, 0.04);
  border: 1px solid rgba(246, 241, 231, 0.22);
  border-radius: 2px;
  cursor: pointer;
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease), background-color 0.2s var(--ease);
}

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

.copy-btn.is-copied {
  border-color: var(--amber);
  color: var(--amber);
}

.copy-btn__text {
  font-family: var(--font-data);
  font-size: 12.5px;
  letter-spacing: 0.01em;
  word-break: break-all;
}

.copy-btn__hint {
  flex: 0 0 auto;
  font-family: var(--font-narrow);
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(246, 241, 231, 0.42);
}

.copy-btn:hover .copy-btn__hint,
.copy-btn.is-copied .copy-btn__hint { color: inherit; }

.footer-contact__addr {
  font-size: 13px;
  line-height: 1.7;
  color: rgba(246, 241, 231, 0.66);
}

.footer-contact__note {
  font-size: 12px;
  line-height: 1.8;
  color: rgba(246, 241, 231, 0.42);
}

.footer-base {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 28px;
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding: 20px var(--gutter) 30px;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.02em;
  color: rgba(246, 241, 231, 0.42);
  border-top: 1px solid rgba(246, 241, 231, 0.12);
}

.to-top {
  position: fixed;
  right: clamp(14px, 2.4vw, 30px);
  bottom: clamp(14px, 2.4vw, 30px);
  z-index: 70;
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  color: var(--paper);
  background: var(--ink-2);
  border: 1px solid rgba(246, 241, 231, 0.24);
  border-radius: 2px;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity 0.24s var(--ease), transform 0.24s var(--ease),
    visibility 0.24s var(--ease), border-color 0.2s var(--ease), color 0.2s var(--ease);
}

.to-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: none;
}

.to-top:hover { border-color: var(--cyan); color: var(--cyan); }

.to-top__icon {
  font-family: var(--font-data);
  font-size: 15px;
  line-height: 1;
}

/* ---------- 14. Reveal ---------- */
[data-js] [data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}

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

/* ---------- 15. Responsive ---------- */
@media (max-width: 1100px) {
  .header-utility { display: none; }
  .footer-inner {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .footer-brand { grid-column: 1 / -1; }
  .footer-contact { grid-column: 1 / -1; }
}

@media (max-width: 1024px) {
  .nav-toggle { display: inline-flex; }
  .header-cta { display: none; }
  .header-inner { gap: 10px; }

  .site-nav {
    position: fixed;
    top: var(--h);
    left: 0;
    right: 0;
    z-index: 1;
    display: none;
    flex: none;
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    gap: 0;
    max-height: calc(100vh - var(--h));
    padding: 6px var(--gutter) 26px;
    overflow-y: auto;
    background: var(--ink-2);
    border-top: 1px solid var(--line-ink);
    border-bottom: 1px solid var(--line-ink);
    box-shadow: 0 30px 50px -30px rgba(0, 0, 0, 0.9);
  }

  .site-header[data-open="true"] .site-nav { display: flex; }

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

  .site-nav__link {
    display: block;
    padding: 16px 2px;
    font-size: 17px;
    border-bottom: 1px solid rgba(246, 241, 231, 0.1);
  }

  .site-nav__link::after { display: none; }

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

  .site-nav__cta {
    display: inline-flex;
    justify-content: center;
    width: 100%;
    margin-top: 20px;
  }
}

@media (max-width: 860px) {
  .grid { grid-template-columns: repeat(6, minmax(0, 1fr)); }
  .span-4, .span-5, .span-6, .span-7, .span-8, .span-12 { grid-column: 1 / -1; }
  .prose { max-width: 100%; }
}

@media (max-width: 640px) {
  :root { --header-h: 66px; }

  .brand__mark { width: 30px; height: 30px; font-size: 17px; }
  .brand__name { font-size: 15px; }
  .brand__tagline { font-size: 9px; letter-spacing: 0.22em; }

  .footer-inner {
    grid-template-columns: minmax(0, 1fr);
    gap: 28px;
  }

  .footer-base {
    flex-direction: column;
    align-items: flex-start;
    font-size: 11px;
  }

  .to-top { width: 40px; height: 40px; }
}

/* ---------- 16. Reduced motion ---------- */
@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;
  }

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

  .scroll-progress__bar {
    transition: none !important;
  }
}