/* ============================================================
   Rust — Design System
   Shared foundation for every page. Link this file once, then
   use the tokens and component classes below.
   Mobile-first: base styles target small screens; min-width
   media queries layer on larger layouts.
   ============================================================ */

/* ---------- Design tokens ---------- */
:root {
  /* Brand / rust family */
  --color-rust-900: #4a1605;
  --color-rust-800: #6e2508;
  --color-rust-700: #8f3209;
  --color-rust-600: #b7410e;
  --color-rust-500: #ce422b;
  --color-rust-400: #e05a3f;

  /* Warm accent family */
  --color-amber-500: #f5ab35;
  --color-amber-300: #ffc861;
  --color-gold: #ffd700;
  --color-salmon: #ffa07a;
  --color-green: #abe338;
  --color-cyan: #0f9d9d;
  --color-lavender: #dcc6e0;
  --color-olive: #d4d0ab;

  /* Neutral ramp */
  --color-black: #000000;
  --color-ink: #1c1c1c;
  --color-night: #2b2b2b;
  --color-charcoal: #3a3a3a;
  --color-slate: #555555;
  --color-steel: #777777;
  --color-silver: #999999;
  --color-mist: #aaaaaa;
  --color-fog: #e7e3d8;
  --color-line: #d9d5c9;
  --color-paper: #f8f8f2;
  --color-white: #ffffff;

  /* Semantic surfaces + text */
  --bg: var(--color-paper);
  --bg-elevated: var(--color-white);
  --bg-sunken: var(--color-fog);
  --bg-code: var(--color-night);
  --text: var(--color-ink);
  --text-muted: var(--color-slate);
  --text-subtle: var(--color-steel);
  --text-inverse: var(--color-paper);
  --border: var(--color-line);
  --border-strong: var(--color-mist);

  /* Interactive */
  --primary: var(--color-rust-600);
  --primary-hover: var(--color-rust-700);
  --primary-active: var(--color-rust-800);
  --on-primary: var(--color-white);
  --accent: var(--color-amber-500);
  --accent-ink: var(--color-rust-900);
  --link: var(--color-rust-600);
  --link-hover: var(--color-rust-800);
  --focus-ring: var(--color-rust-500);
  --focus-offset: 2px;

  /* Typography */
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-serif: Georgia, "Times New Roman", Times, serif;
  --font-mono: ui-monospace, "SFMono-Regular", Menlo, Consolas, "Courier Next", "Liberation Mono", monospace;

  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.375rem;
  --text-2xl: 1.75rem;
  --text-3xl: 2.25rem;
  --text-4xl: clamp(2.5rem, 1.4rem + 5vw, 3.75rem);
  --text-5xl: clamp(3rem, 1.6rem + 6vw, 4.5rem);

  --leading-tight: 1.12;
  --leading-snug: 1.3;
  --leading-normal: 1.6;
  --leading-relaxed: 1.75;

  --tracking-tight: -0.02em;
  --tracking-normal: 0;
  --tracking-wide: 0.06em;
  --tracking-caps: 0.12em;

  --weight-regular: 400;
  --weight-medium: 500;
  --weight-semibold: 600;
  --weight-bold: 700;
  --weight-black: 800;

  /* Spacing scale */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 2.5rem;
  --space-8: 3rem;
  --space-9: 4rem;
  --space-10: 5rem;
  --space-11: 6rem;
  --space-12: 8rem;

  /* Radius */
  --radius-xs: 3px;
  --radius-sm: 5px;
  --radius-md: 8px;
  --radius-lg: 14px;
  --radius-xl: 22px;
  --radius-pill: 999px;
  --radius-circle: 50%;

  /* Shadows */
  --shadow-xs: 0 1px 2px rgba(28, 28, 28, 0.06);
  --shadow-sm: 0 1px 3px rgba(28, 28, 28, 0.09), 0 1px 2px rgba(28, 28, 28, 0.06);
  --shadow-md: 0 4px 10px rgba(28, 28, 28, 0.10), 0 2px 4px rgba(28, 28, 28, 0.06);
  --shadow-lg: 0 14px 30px rgba(28, 28, 28, 0.14), 0 6px 12px rgba(28, 28, 28, 0.08);
  --shadow-focus: 0 0 0 3px rgba(206, 66, 43, 0.35);

  /* Layout */
  --container-max: 72rem;
  --container-narrow: 48rem;
  --container-wide: 84rem;
  --gutter: var(--space-4);
  --header-height: 4rem;

  /* Motion */
  --ease-out: cubic-bezier(0.22, 0.61, 0.36, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --duration-fast: 140ms;
  --duration: 240ms;
  --duration-slow: 600ms;
  --duration-reveal: 700ms;

  /* Elevation / stacking */
  --z-header: 100;
  --z-overlay: 200;
  --z-toast: 300;
}

/* ---------- Dark theme ---------- */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #1e1e1e;
    --bg-elevated: var(--color-night);
    --bg-sunken: #161616;
    --bg-code: #141414;
    --text: var(--color-paper);
    --text-muted: #c9c6bb;
    --text-subtle: var(--color-mist);
    --text-inverse: var(--color-ink);
    --border: #3d3d3d;
    --border-strong: #555555;
    --primary: var(--color-amber-500);
    --primary-hover: var(--color-amber-300);
    --primary-active: var(--color-gold);
    --on-primary: var(--color-rust-900);
    --accent: var(--color-rust-400);
    --accent-ink: var(--color-paper);
    --link: var(--color-amber-300);
    --link-hover: var(--color-gold);
    --focus-ring: var(--color-amber-500);
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.4);
    --shadow-md: 0 4px 10px rgba(0, 0, 0, 0.45);
    --shadow-lg: 0 16px 34px rgba(0, 0, 0, 0.5);
  }
}

[data-theme="dark"] {
  --bg: #1e1e1e;
  --bg-elevated: var(--color-night);
  --bg-sunken: #161616;
  --bg-code: #141414;
  --text: var(--color-paper);
  --text-muted: #c9c6bb;
  --text-subtle: var(--color-mist);
  --text-inverse: var(--color-ink);
  --border: #3d3d3d;
  --border-strong: #555555;
  --primary: var(--color-amber-500);
  --primary-hover: var(--color-amber-300);
  --primary-active: var(--color-gold);
  --on-primary: var(--color-rust-900);
  --accent: var(--color-rust-400);
  --accent-ink: var(--color-paper);
  --link: var(--color-amber-300);
  --link-hover: var(--color-gold);
  --focus-ring: var(--color-amber-500);
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 4px 10px rgba(0, 0, 0, 0.45);
  --shadow-lg: 0 16px 34px rgba(0, 0, 0, 0.5);
}

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + var(--space-4));
}

body {
  margin: 0;
  background-color: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

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

h1,
h2,
h3,
h4 {
  margin: 0 0 var(--space-3);
  font-weight: var(--weight-bold);
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-tight);
  color: var(--text);
  text-wrap: balance;
}

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 {
  margin: 0 0 var(--space-4);
  max-width: 68ch;
}

p:last-child {
  margin-bottom: 0;
}

a {
  color: var(--link);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.16em;
  transition: color var(--duration-fast) var(--ease-out);
}

a:hover {
  color: var(--link-hover);
}

code,
pre,
kbd,
samp {
  font-family: var(--font-mono);
  font-size: 0.92em;
}

ul,
ol {
  margin: 0 0 var(--space-4);
  padding-left: var(--space-5);
}

li + li {
  margin-top: var(--space-1);
}

hr {
  border: 0;
  border-top: 1px solid var(--border);
  margin: var(--space-8) 0;
}

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

:focus-visible {
  outline: 2px solid var(--focus-ring);
  outline-offset: var(--focus-offset);
  border-radius: var(--radius-xs);
}

.skip-link {
  position: absolute;
  left: var(--space-4);
  top: -100%;
  z-index: var(--z-toast);
  padding: var(--space-3) var(--space-4);
  background: var(--primary);
  color: var(--on-primary);
  font-weight: var(--weight-semibold);
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: top var(--duration) var(--ease-out);
}

.skip-link:focus {
  top: var(--space-4);
  color: var(--on-primary);
}

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

.container--narrow { max-width: var(--container-narrow); }
.container--wide { max-width: var(--container-wide); }

.section {
  padding-block: var(--space-9);
}

.section--tight { padding-block: var(--space-7); }
.section--roomy { padding-block: var(--space-11); }

.section--sunken {
  background: var(--bg-sunken);
}

.section__header {
  max-width: var(--container-narrow);
  margin: 0 auto var(--space-8);
  text-align: center;
}

.section__header p {
  margin-inline: auto;
  color: var(--text-muted);
  font-size: var(--text-lg);
}

.eyebrow {
  display: inline-block;
  margin-bottom: var(--space-3);
  font-size: var(--text-xs);
  font-weight: var(--weight-bold);
  letter-spacing: var(--tracking-caps);
  text-transform: uppercase;
  color: var(--primary);
}

.lead {
  font-size: var(--text-lg);
  line-height: var(--leading-relaxed);
  color: var(--text-muted);
}

.text-muted { color: var(--text-muted); }
.text-center { text-align: center; }

.stat { min-width: 0; }

.stack > * + * { margin-top: var(--space-4); }
.stack-lg > * + * { margin-top: var(--space-6); }

.cluster {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-3);
}

.cluster--center {
  justify-content: center;
}

.grid {
  display: grid;
  gap: var(--space-5);
}

.split {
  display: grid;
  gap: var(--space-6);
  align-items: center;
}

@media (min-width: 40rem) {
  .grid--2,
  .grid--3,
  .grid--4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .split { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (min-width: 64rem) {
  .grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  min-height: 2.75rem;
  padding: var(--space-3) var(--space-5);
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  background: transparent;
  color: var(--text);
  font-family: inherit;
  font-size: var(--text-base);
  font-weight: var(--weight-semibold);
  line-height: 1;
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  transition: background-color var(--duration-fast) var(--ease-out),
    border-color var(--duration-fast) var(--ease-out),
    color var(--duration-fast) var(--ease-out),
    transform var(--duration-fast) var(--ease-out),
    box-shadow var(--duration-fast) var(--ease-out);
}

.btn:hover {
  transform: translateY(-1px);
}

.btn:active {
  transform: translateY(0);
}

.btn:disabled,
.btn[aria-disabled="true"] {
  opacity: 0.55;
  cursor: not-allowed;
  transform: none;
}

.btn-primary {
  background: var(--primary);
  color: var(--on-primary);
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  background: var(--primary-hover);
  color: var(--on-primary);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background: transparent;
  color: var(--text);
  border-color: var(--border-strong);
}

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

.btn-ghost {
  background: transparent;
  color: var(--text-muted);
}

.btn-ghost:hover {
  background: var(--bg-sunken);
  color: var(--text);
}

.btn-sm {
  min-height: 2.25rem;
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
}

.btn-lg {
  min-height: 3.25rem;
  padding: var(--space-4) var(--space-6);
  font-size: var(--text-lg);
}

.btn-block {
  width: 100%;
}

/* ---------- Cards ---------- */
.card {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  padding: var(--space-5);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xs);
  transition: transform var(--duration) var(--ease-out),
    box-shadow var(--duration) var(--ease-out),
    border-color var(--duration) var(--ease-out);
}

.card--interactive:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--border-strong);
}

.card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 3rem;
  height: 3rem;
  border-radius: var(--radius-md);
  background: var(--bg-sunken);
  color: var(--primary);
}

.card__icon svg { width: 1.75rem; height: 1.75rem; }

.card__title {
  margin: 0;
  font-size: var(--text-xl);
  font-weight: var(--weight-bold);
}

.card__text {
  margin: 0;
  color: var(--text-muted);
  font-size: var(--text-base);
}

.card__footer {
  margin-top: auto;
  padding-top: var(--space-2);
}

/* ---------- Badges / pills ---------- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-pill);
  background: var(--bg-sunken);
  border: 1px solid var(--border);
  color: var(--text-muted);
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-wide);
  text-decoration: none;
  white-space: nowrap;
}

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

/* ---------- Code ---------- */
.code-block {
  position: relative;
  margin: 0;
  padding: var(--space-5);
  background: var(--bg-code);
  color: var(--color-paper);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-lg);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
  overflow-x: auto;
  tab-size: 2;
}

.code-block code {
  font-size: inherit;
  background: none;
  padding: 0;
}

.code-inline {
  padding: 0.12em 0.4em;
  border-radius: var(--radius-sm);
  background: rgba(43, 43, 43, 0.09);
  border: 1px solid var(--border);
  font-size: 0.88em;
  white-space: nowrap;
}

[data-theme="dark"] .code-inline {
  background: rgba(248, 248, 242, 0.1);
}

.install-snippet {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  background: var(--bg-code);
  color: var(--color-paper);
  border-radius: var(--radius-lg);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  overflow-x: auto;
}

.install-snippet code { white-space: nowrap; }

.install-snippet__prompt { color: var(--color-green); user-select: none; }

/* Syntax theme (Gruvbox-warm, matching the Rust palette) */
.tok-com { color: var(--color-steel); font-style: italic; }
.tok-kw { color: var(--color-cyan); }
.tok-type { color: var(--color-lavender); }
.tok-fn { color: var(--color-amber-500); }
.tok-str { color: var(--color-green); }
.tok-num { color: var(--color-salmon); }
.tok-macro { color: var(--color-gold); }
.tok-var { color: var(--color-paper); }
.tok-err { color: var(--color-salmon); font-weight: var(--weight-bold); }
.tok-ok { color: var(--color-green); }

/* ---------- Hero ---------- */
.hero {
  padding-block: var(--space-10) var(--space-9);
  text-align: center;
}

.hero__media {
  display: flex;
  justify-content: center;
  margin-bottom: var(--space-5);
  color: var(--primary);
}

.hero__title {
  max-width: 20ch;
  margin-inline: auto;
  font-size: var(--text-5xl);
}

.hero__lead {
  max-width: 52ch;
  margin: 0 auto var(--space-6);
  font-size: var(--text-lg);
  color: var(--text-muted);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-3);
}

@media (min-width: 64rem) {
  .hero { padding-block: var(--space-12) var(--space-10); }
}

/* ---------- Site header / nav (chrome) ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-header);
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  backdrop-filter: saturate(140%) blur(8px);
}

.site-header__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-3);
  min-height: var(--header-height);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--text);
  font-weight: var(--weight-bold);
  text-decoration: none;
}

.brand:hover { color: var(--text); }

.brand__mark {
  width: 2rem;
  height: 2rem;
  flex: none;
  color: var(--primary);
}

.brand__name {
  font-size: var(--text-lg);
  letter-spacing: var(--tracking-tight);
}

.site-nav {
  display: none;
  flex-basis: 100%;
  order: 3;
}

.site-nav.is-open { display: block; }

.site-nav__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  margin: 0;
  padding: var(--space-3) 0;
  list-style: none;
}

.site-nav__item { margin: 0; }

.site-nav__link {
  display: block;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  color: var(--text-muted);
  font-weight: var(--weight-medium);
  text-decoration: none;
  transition: background-color var(--duration-fast) var(--ease-out),
    color var(--duration-fast) var(--ease-out);
}

.site-nav__link:hover {
  background: var(--bg-sunken);
  color: var(--text);
}

.site-nav__link[aria-current="page"] {
  color: var(--primary);
  font-weight: var(--weight-semibold);
}

.site-actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-left: auto;
}

.site-nav-toggle {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 2.75rem;
  height: 2.75rem;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: transparent;
  color: var(--text);
  cursor: pointer;
}

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

.site-nav-toggle__bar {
  display: block;
  width: 1.25rem;
  height: 2px;
  margin-inline: auto;
  background: currentColor;
  border-radius: 2px;
  transition: transform var(--duration) var(--ease-out),
    opacity var(--duration) var(--ease-out);
}

.site-nav-toggle[aria-expanded="true"] .site-nav-toggle__bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.site-nav-toggle[aria-expanded="true"] .site-nav-toggle__bar:nth-child(2) {
  opacity: 0;
}
.site-nav-toggle[aria-expanded="true"] .site-nav-toggle__bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

@media (min-width: 60rem) {
  .site-nav {
    display: block;
    flex-basis: auto;
    order: 0;
    margin-left: var(--space-6);
  }
  .site-nav__list {
    flex-direction: row;
    align-items: center;
    padding: 0;
    gap: var(--space-1);
  }
  .site-nav-toggle { display: none; }
  .site-actions { margin-left: auto; }
}

/* ---------- Site footer (chrome) ---------- */
.site-footer {
  margin-top: var(--space-11);
  background: var(--color-night);
  color: var(--color-paper);
  border-top: 3px solid var(--primary);
}

.site-footer a {
  color: var(--color-mist);
  text-decoration: none;
}

.site-footer a:hover {
  color: var(--color-amber-300);
  text-decoration: underline;
}

.site-footer__inner {
  padding-block: var(--space-9) var(--space-6);
}

.site-footer__grid {
  display: grid;
  gap: var(--space-7) var(--space-6);
}

@media (min-width: 40rem) {
  .site-footer__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 64rem) {
  .site-footer__grid {
    grid-template-columns: 1.6fr repeat(3, minmax(0, 1fr));
  }
}

.site-footer__brand {
  max-width: 34ch;
}

.site-footer__brand .brand {
  color: var(--color-paper);
}

.site-footer__brand .brand__mark {
  color: var(--color-amber-500);
}

.site-footer__tagline {
  margin: var(--space-3) 0 0;
  color: var(--color-mist);
  font-size: var(--text-sm);
}

.site-footer__heading {
  margin: 0 0 var(--space-3);
  font-size: var(--text-xs);
  font-weight: var(--weight-bold);
  letter-spacing: var(--tracking-caps);
  text-transform: uppercase;
  color: var(--color-amber-500);
}

.site-footer__links {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: var(--space-2);
  font-size: var(--text-sm);
}

.site-footer__bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  margin-top: var(--space-8);
  padding-top: var(--space-5);
  border-top: 1px solid rgba(248, 248, 242, 0.14);
  font-size: var(--text-sm);
  color: var(--color-mist);
}

.site-footer__legal {
  margin: 0;
  color: var(--color-mist);
}

.site-footer__social {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin: 0;
  padding: 0;
  list-style: none;
}

/* ---------- Motion / animation utilities ---------- */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity var(--duration-reveal) var(--ease-out),
    transform var(--duration-reveal) var(--ease-out);
  will-change: opacity, transform;
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

.reveal-delay-1 { transition-delay: 80ms; }
.reveal-delay-2 { transition-delay: 160ms; }
.reveal-delay-3 { transition-delay: 240ms; }

.fade-up {
  animation: fade-up var(--duration-reveal) var(--ease-out) both;
}

@keyframes fade-up {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.fade-in {
  animation: fade-in var(--duration-slow) var(--ease-out) both;
}

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

.marquee {
  position: relative;
  overflow: hidden;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}

.marquee__track {
  display: inline-flex;
  align-items: center;
  gap: var(--space-8);
  width: max-content;
  padding-block: var(--space-2);
  animation: marquee 32s linear infinite;
}

.marquee:hover .marquee__track {
  animation-play-state: paused;
}

@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

.pulse {
  animation: pulse 2.4s var(--ease-in-out) infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.55; }
}

@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;
    scroll-behavior: auto !important;
  }
  .reveal {
    opacity: 1;
    transform: none;
  }
  .reveal-delay-1,
  .reveal-delay-2,
  .reveal-delay-3 { transition-delay: 0ms; }
  .marquee__track { animation: none; }
}

/* ---------- Utilities ---------- */
.visually-hidden {
  position: absolute !important;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.prose {
  max-width: 72ch;
  line-height: var(--leading-relaxed);
}

.prose h2 { margin-top: var(--space-8); }
.prose h3 { margin-top: var(--space-6); }
.prose p,
.prose ul,
.prose ol { margin-bottom: var(--space-4); }

.divider {
  height: 1px;
  background: var(--border);
  border: 0;
  margin-block: var(--space-8);
}

@media print {
  .site-header,
  .site-footer,
  .site-nav-toggle { display: none !important; }
  body { background: #fff; color: #000; }
}