/*
  Skunkworks Academy canonical brand + theme contract
  Version: 2026.09.08.3

  This is the single authored source for the Academy public colour system,
  typography, theme conformance, common component rules and runtime-classified
  foreground/background contrast. Legacy CSS entry points remain as tiny
  compatibility shims so historical pages do not break while duplicate theme
  implementations are retired.

  Canonical palette (Skunkworks Academy Brand Kit):
  Ink Navy      #03033A
  Skunk Blue    #1E6BD0
  Signal Orange #F24208
  White         #FFFFFF
  Off White     #F7F9FC
  Graphite      #15171A
  Steel Gray    #D8DEE8
  Slate Text    #5A6472
*/

@import url("https://fonts.googleapis.com/css2?family=IBM+Plex+Sans:wght@300;400;500;600;700;800;900&display=swap");
@import url("https://fonts.googleapis.com/css2?family=Inter:wght@800;900&family=Open+Sans:wght@400;600;700;800&display=swap");

/* Base design-system primitives. */
:root {
  color-scheme: light;

  /* Brand tokens */
  --sk-brand-black: #0f0f14;
  --sk-brand-ink: #161616;
  --sk-brand-blue: #0f62fe;
  --sk-brand-blue-hover: #0043ce;
  --sk-brand-cyan: #06b6d4;
  --sk-brand-purple: #7c3aed;
  --sk-brand-success: #22c55e;
  --sk-brand-warning: #f59e0b;
  --sk-brand-danger: #fb7185;

  /* Surface tokens */
  --sk-bg: #f4f4f4;
  --sk-bg-gradient:
    radial-gradient(circle at 0 0, rgba(15, 98, 254, .10), transparent 28rem),
    linear-gradient(180deg, rgba(255, 255, 255, .92), rgba(244, 244, 244, 1));
  --sk-layer-01: #ffffff;
  --sk-layer-02: #f8fafc;
  --sk-layer-03: #e5e7eb;
  --sk-layer-inverse: #0f0f14;

  /* Text tokens */
  --sk-text-primary: #161616;
  --sk-text-secondary: #525252;
  --sk-text-muted: #6f6f6f;
  --sk-text-on-color: #ffffff;
  --sk-text-inverse: #f8fafc;

  /* Interaction tokens */
  --sk-interactive: var(--sk-brand-blue);
  --sk-interactive-hover: var(--sk-brand-blue-hover);
  --sk-link: var(--sk-brand-blue);
  --sk-focus: var(--sk-brand-blue);

  /* Border, radius, elevation */
  --sk-border-subtle: #e0e0e0;
  --sk-border-strong: #8d8d8d;
  --sk-border-inverse: rgba(255, 255, 255, .16);
  --sk-radius-sm: .5rem;
  --sk-radius-md: 1rem;
  --sk-radius-lg: 1.5rem;
  --sk-radius-xl: 2rem;
  --sk-shadow-sm: 0 8px 24px rgba(15, 15, 20, .08);
  --sk-shadow: 0 18px 48px rgba(15, 15, 20, .10);
  --sk-shadow-strong: 0 30px 90px rgba(15, 15, 20, .18);

  /* Typography */
  --sk-font-sans: "IBM Plex Sans", Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --sk-font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  --sk-type-hero: clamp(2.75rem, 7vw, 5.75rem);
  --sk-type-h1: clamp(2.25rem, 5vw, 4.5rem);
  --sk-type-h2: clamp(1.75rem, 3vw, 2.75rem);
  --sk-type-h3: clamp(1.25rem, 2vw, 1.6rem);
  --sk-type-lead: clamp(1.05rem, 1.7vw, 1.35rem);
  --sk-type-small: .875rem;

  /* Spacing scale */
  --sk-space-01: .125rem;
  --sk-space-02: .25rem;
  --sk-space-03: .5rem;
  --sk-space-04: .75rem;
  --sk-space-05: 1rem;
  --sk-space-06: 1.5rem;
  --sk-space-07: 2rem;
  --sk-space-08: 2.5rem;
  --sk-space-09: 3rem;
  --sk-space-10: 4rem;
  --sk-space-11: 5rem;
  --sk-space-12: 6rem;

  --sk-container: 1200px;
  --sk-transition: 160ms ease;

  /* Legacy variable bridge. New work must use --sk-* tokens. */
  --primary-color: var(--sk-interactive);
  --accent-color: var(--sk-brand-cyan);
  --bg-color: var(--sk-bg);
  --card-bg: var(--sk-layer-01);
  --text-color: var(--sk-text-primary);
  --muted-color: var(--sk-text-secondary);
  --border-color: var(--sk-border-subtle);
  --stat-number: var(--sk-interactive);
  --stat-label: var(--sk-text-secondary);
  --transition-speed: var(--sk-transition);
}

:root[data-theme="dark"],
[data-theme="dark"] {
  color-scheme: dark;
  --sk-bg: #050505;
  --sk-bg-gradient:
    radial-gradient(circle at 0 0, rgba(124, 58, 237, .24), transparent 32rem),
    radial-gradient(circle at 100% 0, rgba(6, 182, 212, .16), transparent 30rem),
    linear-gradient(180deg, #050505, #101010);
  --sk-layer-01: #101010;
  --sk-layer-02: #171717;
  --sk-layer-03: #262626;
  --sk-layer-inverse: #ffffff;
  --sk-text-primary: #f8fafc;
  --sk-text-secondary: #cbd5e1;
  --sk-text-muted: #94a3b8;
  --sk-text-inverse: #161616;
  --sk-border-subtle: rgba(255, 255, 255, .13);
  --sk-border-strong: rgba(255, 255, 255, .26);
  --sk-shadow-sm: 0 8px 24px rgba(0, 0, 0, .28);
  --sk-shadow: 0 20px 60px rgba(0, 0, 0, .36);
  --sk-shadow-strong: 0 30px 90px rgba(0, 0, 0, .48);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --sk-bg: #050505;
    --sk-bg-gradient:
      radial-gradient(circle at 0 0, rgba(124, 58, 237, .24), transparent 32rem),
      radial-gradient(circle at 100% 0, rgba(6, 182, 212, .16), transparent 30rem),
      linear-gradient(180deg, #050505, #101010);
    --sk-layer-01: #101010;
    --sk-layer-02: #171717;
    --sk-layer-03: #262626;
    --sk-layer-inverse: #ffffff;
    --sk-text-primary: #f8fafc;
    --sk-text-secondary: #cbd5e1;
    --sk-text-muted: #94a3b8;
    --sk-text-inverse: #161616;
    --sk-border-subtle: rgba(255, 255, 255, .13);
    --sk-border-strong: rgba(255, 255, 255, .26);
    --sk-shadow-sm: 0 8px 24px rgba(0, 0, 0, .28);
    --sk-shadow: 0 20px 60px rgba(0, 0, 0, .36);
    --sk-shadow-strong: 0 30px 90px rgba(0, 0, 0, .48);
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--sk-font-sans);
  color: var(--sk-text-primary);
  background: var(--sk-bg-gradient, var(--sk-bg));
  line-height: 1.55;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}
body.swa-has-global-nav { padding-top: 82px; }
img, svg { display: block; max-width: 100%; }
a { color: var(--sk-link); text-decoration: none; }
a:hover { text-decoration: underline; }
button, input, select, textarea { font: inherit; }
button { cursor: pointer; }
:focus-visible { outline: 3px solid var(--sk-focus); outline-offset: 3px; }

.sk-sr-only,
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.sk-skip-link,
.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 2147483647;
  transform: translateY(-150%);
  background: var(--sk-layer-inverse);
  color: var(--sk-text-inverse);
  padding: .65rem .9rem;
  border-radius: 999px;
  font-weight: 800;
}
.sk-skip-link:focus,
.skip-link:focus { transform: translateY(0); }

.sk-app { min-height: 100vh; display: flex; flex-direction: column; }
.sk-main { flex: 1; }
.sk-container,
.shell,
.nav-shell,
.footer-shell { width: min(100% - 2rem, var(--sk-container)); margin-inline: auto; }

/* Global injected navigation */
.swa-global-nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 2147483000;
  border-bottom: 1px solid var(--sk-border-subtle);
  background: color-mix(in srgb, var(--sk-layer-01) 92%, transparent);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  color: var(--sk-text-primary);
}
.swa-global-nav__inner {
  width: min(1180px, calc(100% - 32px));
  min-height: 72px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.swa-global-nav__brand {
  display: inline-flex;
  align-items: center;
  gap: .7rem;
  color: var(--sk-text-primary);
  text-decoration: none;
  font-weight: 900;
  letter-spacing: -.035em;
  white-space: nowrap;
}
.swa-global-nav__brand:hover { text-decoration: none; }
.swa-global-nav__brand img { width: 34px; height: 34px; border-radius: .65rem; object-fit: contain; }
.swa-global-nav__brand .swa-logo-dark { display: none; }
:root[data-theme="dark"] .swa-logo-light,
[data-theme="dark"] .swa-logo-light { display: none; }
:root[data-theme="dark"] .swa-logo-dark,
[data-theme="dark"] .swa-logo-dark { display: inline-block; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .swa-logo-light { display: none; }
  :root:not([data-theme="light"]) .swa-logo-dark { display: inline-block; }
}
.swa-global-nav__links {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: .4rem;
  flex-wrap: wrap;
}
.swa-global-nav__link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  border: 1px solid transparent;
  border-radius: 999px;
  padding: .5rem .7rem;
  color: var(--sk-text-muted);
  text-decoration: none;
  font-size: .82rem;
  font-weight: 850;
  line-height: 1;
}
.swa-global-nav__link:hover,
.swa-global-nav__link:focus,
.swa-global-nav__link[aria-current="page"] {
  border-color: var(--sk-border-subtle);
  background: color-mix(in srgb, var(--sk-interactive) 10%, transparent);
  color: var(--sk-text-primary);
  text-decoration: none;
}
.swa-global-nav__toggle {
  display: none;
  align-items: center;
  gap: .65rem;
  border: 1px solid var(--sk-border-subtle);
  border-radius: 999px;
  background: transparent;
  color: var(--sk-text-primary);
  padding: .65rem .9rem;
  font-weight: 850;
}
.swa-global-nav__toggle-lines { display: grid; gap: 4px; }
.swa-global-nav__toggle-lines span { display: block; width: 18px; height: 2px; background: currentColor; border-radius: 999px; }

/* Static canonical header for pages that render their own shell */
.sk-site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--sk-layer-01) 92%, transparent);
  color: var(--sk-text-primary);
  border-bottom: 1px solid var(--sk-border-subtle);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}
.sk-site-header__inner { min-height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.sk-site-brand { display: inline-flex; align-items: center; gap: .8rem; color: var(--sk-text-primary); font-weight: 900; letter-spacing: -.035em; }
.sk-site-brand:hover { text-decoration: none; }
.sk-site-brand__icon { inline-size: 38px; block-size: 38px; object-fit: contain; border-radius: .75rem; }
.sk-site-brand__name { line-height: 1; white-space: nowrap; }
.sk-site-brand__tagline { display: block; margin-top: .15rem; color: var(--sk-text-muted); font-size: .72rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.sk-nav { display: flex; align-items: center; justify-content: flex-end; gap: .4rem; flex-wrap: wrap; }
.sk-nav a { border: 1px solid transparent; border-radius: 999px; padding: .5rem .7rem; color: var(--sk-text-muted); font-weight: 850; font-size: .85rem; }
.sk-nav a:hover,
.sk-nav a[aria-current="page"] { border-color: var(--sk-border-subtle); background: color-mix(in srgb, var(--sk-interactive) 10%, transparent); color: var(--sk-text-primary); text-decoration: none; }
.sk-nav-toggle { display: none; }

.sk-section { padding-block: var(--sk-space-10); }
.sk-section--contrast { background: var(--sk-layer-01); border-block: 1px solid var(--sk-border-subtle); }
.sk-page-header,
.sk-hero { position: relative; overflow: hidden; color: var(--sk-text-primary); }
.sk-hero { background: linear-gradient(135deg, var(--sk-brand-ink), #262626 55%, var(--sk-brand-black)); color: #fff; border-bottom: 1px solid var(--sk-border-subtle); }
.sk-hero::before { content: ""; position: absolute; inset: -20% -15% auto auto; width: 34rem; height: 34rem; border-radius: 999px; background: radial-gradient(circle, color-mix(in srgb, var(--sk-interactive) 34%, transparent), transparent 70%); pointer-events: none; }
.sk-hero__inner { position: relative; min-height: clamp(28rem, 56vw, 44rem); display: grid; align-items: end; padding-block: var(--sk-space-12) var(--sk-space-11); }
.sk-hero__content { max-width: 900px; }
.sk-hero__inner--split { grid-template-columns: minmax(0, 1.35fr) minmax(18rem, .65fr); gap: var(--sk-space-08); align-items: center; }
.sk-hero__aside { max-width: 30rem; justify-self: end; padding: var(--sk-space-06); border: 1px solid var(--sk-border-inverse); border-radius: var(--sk-radius-lg); background: color-mix(in srgb, #fff 9%, transparent); color: color-mix(in srgb, #fff 84%, transparent); box-shadow: var(--sk-shadow); }
.sk-hero__aside h2 { margin: 0 0 var(--sk-space-04); color: #fff; font-size: var(--sk-type-h3); line-height: 1.2; }
.sk-hero__list { display: grid; gap: var(--sk-space-03); margin: 0; padding: 0; list-style: none; }
.sk-hero__list li { display: grid; grid-template-columns: .75rem 1fr; gap: var(--sk-space-03); align-items: start; }
.sk-hero__list li::before { content: ""; width: .625rem; height: .625rem; margin-top: .5rem; border-radius: 999px; background: var(--sk-interactive); }
.sk-eyebrow { display: inline-flex; align-items: center; gap: .5rem; margin: 0 0 1rem; color: var(--sk-interactive); font-size: var(--sk-type-small); font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.sk-hero .sk-eyebrow { color: #a5f3fc; }
h1, h2, h3, p { margin-top: 0; }
.sk-hero h1,
.sk-page-header h1 { margin: 0 0 var(--sk-space-06); font-size: var(--sk-type-hero); line-height: .95; letter-spacing: -.06em; }
.sk-section h2,
.sk-heading-xl { margin: 0 0 var(--sk-space-05); font-size: var(--sk-type-h2); line-height: 1; letter-spacing: -.045em; }
.sk-hero p,
.sk-section-lead,
.lead { max-width: 780px; margin: 0; color: color-mix(in srgb, currentColor 72%, transparent); font-size: var(--sk-type-lead); }
.sk-actions,
.actions { display: flex; flex-wrap: wrap; gap: var(--sk-space-04); margin-top: var(--sk-space-07); }

.sk-button,
.btn {
  min-height: 3rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  border: 1px solid transparent;
  border-radius: 999px;
  background: var(--sk-interactive);
  color: #fff;
  padding: .75rem 1.15rem;
  font-weight: 850;
  text-decoration: none;
  transition: transform var(--sk-transition), background var(--sk-transition), border-color var(--sk-transition);
}
.sk-button:hover,
.btn:hover { background: var(--sk-interactive-hover); color: #fff; text-decoration: none; transform: translateY(-1px); }
.sk-button--secondary,
.btn.secondary,
.btn:not(.primary) { background: transparent; color: currentColor; border-color: var(--sk-border-subtle); }
.sk-button--ghost { background: transparent; color: var(--sk-link); border-color: transparent; }
.primary { background: var(--sk-interactive) !important; color: #fff !important; }

.sk-grid { display: grid; gap: var(--sk-space-06); }
.sk-grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.sk-grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.sk-grid--4,
.sk-card-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }

.sk-card,
.card,
.tile,
.process,
.repo-panel,
.hero-card {
  min-height: 100%;
  background: color-mix(in srgb, var(--sk-layer-01) 92%, transparent);
  border: 1px solid var(--sk-border-subtle);
  border-radius: var(--sk-radius-lg);
  color: var(--sk-text-primary);
  box-shadow: var(--sk-shadow-sm);
  transition: transform var(--sk-transition), box-shadow var(--sk-transition), border-color var(--sk-transition);
}
.sk-card:hover,
.card:hover,
.tile:hover { border-color: color-mix(in srgb, var(--sk-interactive) 42%, var(--sk-border-subtle)); box-shadow: var(--sk-shadow); }
.sk-card__media { aspect-ratio: 1 / 1; overflow: hidden; background: var(--sk-layer-inverse); border-start-start-radius: inherit; border-start-end-radius: inherit; }
.sk-card__media img { inline-size: 100%; block-size: 100%; object-fit: cover; transition: transform 280ms ease; }
.sk-card:hover .sk-card__media img { transform: scale(1.035); }
.sk-card__body,
.card,
.tile,
.process,
.repo-panel,
.hero-card { padding: var(--sk-space-06); }
.sk-card__title { margin: 0 0 .25rem; font-size: var(--sk-type-h3); line-height: 1.2; letter-spacing: -.02em; }
.sk-card__meta,
.sk-card__text,
.card p,
.tile p { color: var(--sk-text-secondary); }
.sk-tags { display: flex; flex-wrap: wrap; gap: .5rem; margin-top: 1rem; }
.sk-tag,
.tile-kicker,
.level {
  display: inline-flex;
  align-items: center;
  min-height: 1.5rem;
  border: 1px solid color-mix(in srgb, var(--sk-interactive) 25%, transparent);
  border-radius: 999px;
  padding-inline: .75rem;
  background: color-mix(in srgb, var(--sk-interactive) 12%, transparent);
  color: var(--sk-interactive);
  font-size: .75rem;
  font-weight: 800;
}

.sk-stats,
.metric-grid,
.process-grid,
.ecosystem-grid,
.pathways,
.repo-layout,
.cards,
.stats {
  display: grid;
  gap: var(--sk-space-05);
}
.ecosystem-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.pathways,
.metric-grid,
.repo-layout { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.process-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.cards { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.stats { grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); }
.sk-stat,
.metric,
.step,
.repo-item,
.stat { border: 1px solid var(--sk-border-subtle); border-radius: var(--sk-radius-md); background: var(--sk-layer-01); padding: var(--sk-space-05); }
.sk-stat__value,
.metric strong,
.stat .number { display: block; margin-bottom: .25rem; color: var(--sk-interactive); font-size: 2rem; font-weight: 900; letter-spacing: -.04em; }
.sk-stat__label,
.metric span,
.stat .label { color: var(--sk-text-secondary); font-size: var(--sk-type-small); }

.sk-form,
.sk-form-card { display: grid; gap: var(--sk-space-05); }
.sk-form-card { max-width: 640px; margin-inline: auto; padding: var(--sk-space-07); background: var(--sk-layer-01); border: 1px solid var(--sk-border-subtle); border-radius: var(--sk-radius-lg); box-shadow: var(--sk-shadow); }
.sk-field { display: grid; gap: .4rem; }
.sk-label { color: var(--sk-text-primary); font-weight: 750; }
.sk-input,
.sk-select,
.sk-textarea,
.sk-form input,
.sk-form select,
.sk-form textarea {
  width: 100%;
  min-height: 2.75rem;
  border: 1px solid var(--sk-border-subtle);
  border-radius: var(--sk-radius-sm);
  background: var(--sk-layer-01);
  color: var(--sk-text-primary);
  padding: .65rem .75rem;
}
.sk-textarea,
.sk-form textarea { min-height: 7rem; resize: vertical; }
.sk-help-text { color: var(--sk-text-muted); font-size: var(--sk-type-small); }
.sk-form--invalid :invalid { border-color: var(--sk-brand-danger); }

.sk-document,
.document {
  width: min(100% - 2rem, 920px);
  margin: var(--sk-space-07) auto;
  background: var(--sk-layer-01);
  color: var(--sk-text-primary);
  border-top: .5rem solid var(--sk-brand-black);
  border-radius: var(--sk-radius-sm);
  box-shadow: var(--sk-shadow);
  padding: clamp(1.5rem, 4vw, 3.5rem);
}
.sk-document-header,
.document .header { border-bottom: 2px solid var(--sk-brand-black); padding-bottom: var(--sk-space-05); margin-bottom: var(--sk-space-07); }
.sk-document-title,
.document h1 { text-align: center; font-size: 1.4rem; text-transform: uppercase; letter-spacing: .06em; }
.sk-document h2,
.document h2 { font-size: 1rem; margin-top: var(--sk-space-07); padding-bottom: .4rem; border-bottom: 1px solid var(--sk-border-subtle); text-transform: uppercase; letter-spacing: .04em; }
.sk-table-wrap { overflow-x: auto; }
.sk-table,
.document table { width: 100%; border-collapse: collapse; margin-block: var(--sk-space-05); }
.sk-table th,
.sk-table td,
.document th,
.document td { border: 1px solid var(--sk-border-subtle); padding: .75rem; vertical-align: top; }
.sk-table th,
.document th { background: var(--sk-layer-02); text-align: left; font-weight: 800; }
.sk-signature-grid,
.signature-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--sk-space-06); margin-top: var(--sk-space-06); }
.sk-signature-box,
.signature-box { border: 1px solid var(--sk-border-subtle); background: var(--sk-layer-02); padding: var(--sk-space-06); min-height: 12rem; page-break-inside: avoid; }

.sk-footer,
.footer {
  margin-top: auto;
  background: var(--sk-brand-black);
  color: #cbd5e1;
  border-top: 1px solid rgba(255, 255, 255, .12);
}
.sk-footer__inner,
.footer-shell { display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap; padding-block: var(--sk-space-07); }
.sk-footer a,
.footer a { color: #cbd5e1; font-weight: 750; }
.sk-footer__bottom { padding-block: 1rem; border-top: 1px solid rgba(255, 255, 255, .12); color: #94a3b8; font-size: var(--sk-type-small); }

[data-format="document"] body,
body[data-format="document"] { background: #eef2f7; }
[data-format="print"] .swa-global-nav,
body[data-format="print"] .swa-global-nav { display: none; }

@media (max-width: 980px) {
  body.swa-has-global-nav { padding-top: 74px; }
  .swa-global-nav__inner { width: min(100% - 20px, 1180px); min-height: 66px; }
  .swa-global-nav__brand span { display: none; }
  .swa-global-nav__toggle { display: inline-flex; }
  .swa-global-nav__links {
    position: fixed;
    top: 74px;
    left: 50%;
    transform: translateX(-50%);
    width: calc(100% - 20px);
    max-height: calc(100vh - 92px);
    overflow: auto;
    display: none;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: .5rem;
    border: 1px solid var(--sk-border-subtle);
    border-radius: var(--sk-radius-lg);
    background: var(--sk-layer-01);
    box-shadow: var(--sk-shadow-strong);
    padding: .9rem;
  }
  .swa-global-nav.swa-open .swa-global-nav__links { display: grid; }
  .swa-global-nav__link { justify-content: flex-start; min-height: 44px; border-color: var(--sk-border-subtle); padding: .75rem .9rem; font-size: .9rem; }
  .sk-grid--4,
  .sk-card-grid,
  .ecosystem-grid,
  .process-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .repo-layout { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .sk-container,
  .shell,
  .nav-shell,
  .footer-shell { width: min(100% - 1.5rem, var(--sk-container)); }
  .sk-grid--2,
  .sk-grid--3,
  .sk-grid--4,
  .sk-card-grid,
  .ecosystem-grid,
  .pathways,
  .metric-grid,
  .process-grid,
  .sk-signature-grid,
  .signature-grid { grid-template-columns: 1fr; }
  .sk-section { padding-block: var(--sk-space-09); }
  .sk-hero__inner { min-height: 32rem; }
  .sk-hero__inner--split { grid-template-columns: 1fr; }
  .sk-hero__aside { justify-self: stretch; max-width: none; }
  .sk-hero h1,
  .sk-page-header h1 { font-size: clamp(2.55rem, 14vw, 4rem); }
  .swa-global-nav__links { grid-template-columns: 1fr; }
}

@media print {
  @page { size: A4; margin: 18mm 16mm; }
  :root { color-scheme: light; }
  body { background: #fff !important; color: #111827 !important; padding: 0 !important; }
  .swa-global-nav,
  .sk-site-header,
  .sk-footer,
  .footer,
  .sk-print-hide { display: none !important; }
  .sk-document,
  .document { width: 100%; margin: 0; padding: 0; border: 0; box-shadow: none; background: #fff; color: #111827; }
  a { color: #111827; text-decoration: none; }
  .sk-card,
  .card,
  .tile,
  .signature-box { box-shadow: none; page-break-inside: avoid; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; animation-duration: .001ms !important; animation-iteration-count: 1 !important; }
}

/* Academy brand, theme and component contract. */
:root {
  --swa-theme-contract-version: "2026.09.08.3";

  /* Canonical brand tokens. */
  --sw-ink-navy: #03033a;
  --sw-skunk-blue: #1e6bd0;
  --sw-skunk-blue-hover: #1756a9;
  --sw-signal-orange: #f24208;
  --sw-white: #ffffff;
  --sw-off-white: #f7f9fc;
  --sw-graphite: #15171a;
  --sw-steel-gray: #d8dee8;
  --sw-slate-text: #5a6472;
  --sw-blue-on-dark: #8fbaff;
  --sw-dark-canvas: #05050b;
  --sw-dark-surface: #11111c;
  --sw-dark-text: #f4f6fa;
  --sw-dark-muted: #c8d1df;

  /* Typography: Brand Kit display + body/UI + technical stack. */
  --sk-font-display: "Inter", "Arial Black", "Segoe UI", sans-serif;
  --sk-font-sans: "Open Sans", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --sk-font-mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;

  /* Canonical design-system bridge. */
  --sk-brand-black: var(--sw-ink-navy);
  --sk-brand-ink: var(--sw-graphite);
  --sk-brand-blue: var(--sw-skunk-blue);
  --sk-brand-blue-hover: var(--sw-skunk-blue-hover);
  --sk-brand-cyan: var(--sw-skunk-blue);
  --sk-brand-purple: var(--sw-ink-navy);
  --sk-bg: var(--sw-white);
  --sk-bg-gradient:
    radial-gradient(circle at 0 0, rgba(30, 107, 208, .08), transparent 30rem),
    linear-gradient(180deg, var(--sw-white), var(--sw-off-white));
  --sk-layer-01: var(--sw-white);
  --sk-layer-02: var(--sw-off-white);
  --sk-layer-03: #edf1f7;
  --sk-layer-inverse: var(--sw-ink-navy);
  --sk-text-primary: var(--sw-graphite);
  --sk-text-secondary: var(--sw-slate-text);
  --sk-text-muted: #687385;
  --sk-text-on-color: var(--sw-white);
  --sk-text-inverse: var(--sw-white);
  --sk-interactive: var(--sw-skunk-blue);
  --sk-interactive-hover: var(--sw-skunk-blue-hover);
  --sk-link: #1756a9;
  --sk-focus: var(--sw-signal-orange);
  --sk-border-subtle: var(--sw-steel-gray);
  --sk-border-strong: #8b95a5;
  --sk-border-inverse: rgba(255, 255, 255, .20);
  --sk-shadow-sm: 0 8px 24px rgba(3, 3, 58, .08);
  --sk-shadow: 0 18px 48px rgba(3, 3, 58, .10);
  --sk-shadow-strong: 0 30px 90px rgba(3, 3, 58, .18);

  /* Academy-wide semantic component contract. */
  --swa-font-sans: var(--sk-font-sans);
  --swa-font-display: var(--sk-font-display);
  --swa-font-mono: var(--sk-font-mono);
  --swa-content-max: var(--sk-container, 1200px);
  --swa-control-height: 2.75rem;
  --swa-radius-control: var(--sk-radius-sm, .5rem);
  --swa-radius-surface: var(--sk-radius-md, 1rem);
  --swa-space-control-x: var(--sk-space-05, 1rem);
  --swa-space-control-y: var(--sk-space-03, .5rem);
  --swa-surface: var(--sk-layer-01);
  --swa-surface-raised: var(--sk-layer-02);
  --swa-text: var(--sk-text-primary);
  --swa-text-muted: var(--sk-text-secondary);
  --swa-border: var(--sk-border-subtle);
  --swa-action: var(--sk-interactive);
  --swa-action-hover: var(--sk-interactive-hover);
  --swa-action-text: var(--sk-text-on-color);
  --swa-link: var(--sk-link);
  --swa-focus: var(--sk-focus);
  --swa-shadow: var(--sk-shadow);

  /* Common legacy variable bridge used by older pages. */
  --bg: var(--sw-white);
  --surface: var(--sw-white);
  --surface-2: var(--sw-off-white);
  --surface2: var(--sw-off-white);
  --surface-3: #edf1f7;
  --surface3: #edf1f7;
  --panel: var(--sw-white);
  --panel-2: var(--sw-off-white);
  --text: var(--sw-graphite);
  --text-soft: #343a43;
  --muted: var(--sw-slate-text);
  --subtle: #687385;
  --soft: var(--sw-off-white);
  --line: var(--sw-steel-gray);
  --line-strong: #8b95a5;
  --accent: var(--sw-skunk-blue);
  --accent-2: var(--sw-ink-navy);
  --accent2: var(--sw-ink-navy);
  --primary: var(--sw-skunk-blue);
  --primary-color: var(--sw-skunk-blue);
  --accent-color: var(--sw-skunk-blue);
  --link: #1756a9;
  --focus: var(--sw-signal-orange);
  --amber: var(--sw-signal-orange);
  --warning: var(--sw-signal-orange);
  --bg-color: var(--sw-white);
  --card-bg: var(--sw-white);
  --text-color: var(--sw-graphite);
  --muted-color: var(--sw-slate-text);
  --border-color: var(--sw-steel-gray);
  --stat-number: var(--sw-skunk-blue);
  --stat-label: var(--sw-slate-text);

  /* Legacy shared-page namespaces retained while pages migrate to --sk-* tokens. */
  --brand-blue: var(--sw-skunk-blue);
  --brand-blue-2: var(--sw-skunk-blue-hover);
  --hub-bg: var(--sw-off-white);
  --hub-card: var(--sw-white);
  --hub-text: var(--sw-graphite);
  --hub-muted: var(--sw-slate-text);
  --hub-line: var(--sw-steel-gray);
  --hub-accent: var(--sw-skunk-blue);
  --hub-accent-strong: var(--sw-skunk-blue-hover);
  --hub-hero-bg: var(--sw-white);
  --hub-hero-text: var(--sw-graphite);
  --hub-hero-muted: var(--sw-slate-text);
  --hub-hero-eyebrow: var(--sw-skunk-blue);
  --hub-hero-line: var(--sw-steel-gray);

  --cr-page: var(--sw-white);
  --cr-surface: var(--sw-white);
  --cr-surface-soft: var(--sw-off-white);
  --cr-surface-raised: #edf1f7;
  --cr-text: var(--sw-graphite);
  --cr-muted: var(--sw-slate-text);
  --cr-border: var(--sw-steel-gray);
  --cr-border-strong: #8b95a5;
  --cr-accent: var(--sw-skunk-blue);
  --cr-accent-hover: var(--sw-skunk-blue-hover);
  --cr-accent-text: var(--sw-white);
  --cr-inverse: var(--sw-ink-navy);
  --cr-inverse-text: var(--sw-white);

  --swa-form-page: var(--sw-white);
  --swa-form-surface: var(--sw-white);
  --swa-form-surface-soft: var(--sw-off-white);
  --swa-form-surface-muted: #edf1f7;
  --swa-form-text: var(--sw-graphite);
  --swa-form-text-muted: var(--sw-slate-text);
  --swa-form-line: var(--sw-steel-gray);
  --swa-form-line-strong: #8b95a5;
  --swa-form-accent: var(--sw-skunk-blue);
  --swa-form-accent-hover: var(--sw-skunk-blue-hover);
  --swa-form-input: var(--sw-white);
  --swa-form-input-text: var(--sw-graphite);

  /* Labs namespace bridge. */
  --labs-bg: var(--sw-white);
  --labs-bg-soft: var(--sw-off-white);
  --labs-surface: var(--sw-white);
  --labs-surface-2: var(--sw-off-white);
  --labs-card: rgba(255, 255, 255, .94);
  --labs-text: var(--sw-graphite);
  --labs-muted: var(--sw-slate-text);
  --labs-line: rgba(90, 100, 114, .24);
  --labs-blue: var(--sw-skunk-blue);
  --labs-cyan: var(--sw-skunk-blue);
  --labs-violet: var(--sw-ink-navy);
  --labs-amber: var(--sw-signal-orange);
  --labs-focus: 0 0 0 4px rgba(242, 66, 8, .24);
}

:root[data-theme="dark"],
:root[data-swa-theme="dark"],
[data-theme="dark"],
[data-swa-theme="dark"] {
  color-scheme: dark;
  --sk-bg: var(--sw-dark-canvas);
  --sk-bg-gradient:
    radial-gradient(circle at 8% -8%, rgba(30, 107, 208, .22), transparent 34rem),
    radial-gradient(circle at 92% 6%, rgba(242, 66, 8, .07), transparent 28rem),
    linear-gradient(180deg, var(--sw-dark-canvas), var(--sw-ink-navy));
  --sk-layer-01: var(--sw-dark-surface);
  --sk-layer-02: #171728;
  --sk-layer-03: #23233a;
  --sk-layer-inverse: var(--sw-white);
  --sk-text-primary: var(--sw-dark-text);
  --sk-text-secondary: var(--sw-dark-muted);
  --sk-text-muted: #aeb9c9;
  --sk-text-inverse: var(--sw-graphite);
  --sk-link: var(--sw-blue-on-dark);
  --sk-focus: var(--sw-signal-orange);
  --sk-border-subtle: rgba(216, 222, 232, .18);
  --sk-border-strong: rgba(216, 222, 232, .34);
  --sk-shadow-sm: 0 8px 24px rgba(0, 0, 0, .28);
  --sk-shadow: 0 20px 60px rgba(0, 0, 0, .36);
  --sk-shadow-strong: 0 30px 90px rgba(0, 0, 0, .48);

  --bg: var(--sw-dark-canvas);
  --surface: var(--sw-dark-surface);
  --surface-2: #171728;
  --surface2: #171728;
  --surface-3: #23233a;
  --surface3: #23233a;
  --panel: var(--sw-dark-surface);
  --panel-2: #171728;
  --text: var(--sw-dark-text);
  --text-soft: #e5e9f0;
  --muted: var(--sw-dark-muted);
  --subtle: #aeb9c9;
  --soft: #171728;
  --line: rgba(216, 222, 232, .20);
  --line-strong: rgba(216, 222, 232, .38);
  --accent: var(--sw-skunk-blue);
  --accent-2: var(--sw-ink-navy);
  --accent2: var(--sw-ink-navy);
  --primary: var(--sw-skunk-blue);
  --link: var(--sw-blue-on-dark);
  --focus: var(--sw-signal-orange);
  --amber: var(--sw-signal-orange);

  --hub-bg: var(--sw-dark-canvas);
  --hub-card: var(--sw-dark-surface);
  --hub-text: var(--sw-dark-text);
  --hub-muted: var(--sw-dark-muted);
  --hub-line: rgba(216, 222, 232, .20);
  --hub-accent: var(--sw-blue-on-dark);
  --hub-accent-strong: #b9d7ff;
  --hub-hero-bg: var(--sw-ink-navy);
  --hub-hero-text: var(--sw-white);
  --hub-hero-muted: var(--sw-dark-muted);
  --hub-hero-eyebrow: var(--sw-blue-on-dark);
  --hub-hero-line: rgba(216, 222, 232, .20);

  --cr-page: var(--sw-dark-canvas);
  --cr-surface: var(--sw-dark-surface);
  --cr-surface-soft: #171728;
  --cr-surface-raised: #23233a;
  --cr-text: var(--sw-dark-text);
  --cr-muted: var(--sw-dark-muted);
  --cr-border: rgba(216, 222, 232, .20);
  --cr-border-strong: rgba(216, 222, 232, .38);
  --cr-accent: var(--sw-blue-on-dark);
  --cr-accent-hover: #b9d7ff;
  --cr-accent-text: var(--sw-graphite);
  --cr-inverse: var(--sw-ink-navy);
  --cr-inverse-text: var(--sw-white);

  --swa-form-page: var(--sw-dark-canvas);
  --swa-form-surface: var(--sw-dark-surface);
  --swa-form-surface-soft: #171728;
  --swa-form-surface-muted: #23233a;
  --swa-form-text: var(--sw-dark-text);
  --swa-form-text-muted: var(--sw-dark-muted);
  --swa-form-line: rgba(216, 222, 232, .20);
  --swa-form-line-strong: rgba(216, 222, 232, .38);
  --swa-form-accent: var(--sw-blue-on-dark);
  --swa-form-accent-hover: #b9d7ff;
  --swa-form-input: var(--sw-dark-surface);
  --swa-form-input-text: var(--sw-dark-text);

  --labs-bg: var(--sw-dark-canvas);
  --labs-bg-soft: var(--sw-ink-navy);
  --labs-surface: var(--sw-dark-surface);
  --labs-surface-2: #171728;
  --labs-card: rgba(17, 17, 28, .90);
  --labs-text: var(--sw-dark-text);
  --labs-muted: var(--sw-dark-muted);
  --labs-line: rgba(216, 222, 232, .20);
  --labs-blue: var(--sw-skunk-blue);
  --labs-cyan: var(--sw-blue-on-dark);
  --labs-violet: var(--sw-ink-navy);
  --labs-amber: var(--sw-signal-orange);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]):not([data-swa-theme="light"]) {
    color-scheme: dark;
    --sk-bg: var(--sw-dark-canvas);
    --sk-bg-gradient:
      radial-gradient(circle at 8% -8%, rgba(30, 107, 208, .22), transparent 34rem),
      radial-gradient(circle at 92% 6%, rgba(242, 66, 8, .07), transparent 28rem),
      linear-gradient(180deg, var(--sw-dark-canvas), var(--sw-ink-navy));
    --sk-layer-01: var(--sw-dark-surface);
    --sk-layer-02: #171728;
    --sk-layer-03: #23233a;
    --sk-layer-inverse: var(--sw-white);
    --sk-text-primary: var(--sw-dark-text);
    --sk-text-secondary: var(--sw-dark-muted);
    --sk-text-muted: #aeb9c9;
    --sk-text-inverse: var(--sw-graphite);
    --sk-link: var(--sw-blue-on-dark);
    --sk-focus: var(--sw-signal-orange);
    --sk-border-subtle: rgba(216, 222, 232, .18);
    --sk-border-strong: rgba(216, 222, 232, .34);

    --bg: var(--sw-dark-canvas);
    --surface: var(--sw-dark-surface);
    --surface-2: #171728;
    --surface2: #171728;
    --surface-3: #23233a;
    --surface3: #23233a;
    --panel: var(--sw-dark-surface);
    --panel-2: #171728;
    --text: var(--sw-dark-text);
    --text-soft: #e5e9f0;
    --muted: var(--sw-dark-muted);
    --subtle: #aeb9c9;
    --soft: #171728;
    --line: rgba(216, 222, 232, .20);
    --line-strong: rgba(216, 222, 232, .38);
    --accent: var(--sw-skunk-blue);
    --accent-2: var(--sw-ink-navy);
    --accent2: var(--sw-ink-navy);
    --primary: var(--sw-skunk-blue);
    --link: var(--sw-blue-on-dark);
    --focus: var(--sw-signal-orange);
    --amber: var(--sw-signal-orange);

    --hub-bg: var(--sw-dark-canvas);
    --hub-card: var(--sw-dark-surface);
    --hub-text: var(--sw-dark-text);
    --hub-muted: var(--sw-dark-muted);
    --hub-line: rgba(216, 222, 232, .20);
    --hub-accent: var(--sw-blue-on-dark);
    --hub-accent-strong: #b9d7ff;
    --hub-hero-bg: var(--sw-ink-navy);
    --hub-hero-text: var(--sw-white);
    --hub-hero-muted: var(--sw-dark-muted);
    --hub-hero-eyebrow: var(--sw-blue-on-dark);
    --hub-hero-line: rgba(216, 222, 232, .20);

    --cr-page: var(--sw-dark-canvas);
    --cr-surface: var(--sw-dark-surface);
    --cr-surface-soft: #171728;
    --cr-surface-raised: #23233a;
    --cr-text: var(--sw-dark-text);
    --cr-muted: var(--sw-dark-muted);
    --cr-border: rgba(216, 222, 232, .20);
    --cr-border-strong: rgba(216, 222, 232, .38);
    --cr-accent: var(--sw-blue-on-dark);
    --cr-accent-hover: #b9d7ff;
    --cr-accent-text: var(--sw-graphite);

    --swa-form-page: var(--sw-dark-canvas);
    --swa-form-surface: var(--sw-dark-surface);
    --swa-form-surface-soft: #171728;
    --swa-form-surface-muted: #23233a;
    --swa-form-text: var(--sw-dark-text);
    --swa-form-text-muted: var(--sw-dark-muted);
    --swa-form-line: rgba(216, 222, 232, .20);
    --swa-form-line-strong: rgba(216, 222, 232, .38);
    --swa-form-accent: var(--sw-blue-on-dark);
    --swa-form-accent-hover: #b9d7ff;
    --swa-form-input: var(--sw-dark-surface);
    --swa-form-input-text: var(--sw-dark-text);

    --labs-bg: var(--sw-dark-canvas);
    --labs-bg-soft: var(--sw-ink-navy);
    --labs-surface: var(--sw-dark-surface);
    --labs-surface-2: #171728;
    --labs-card: rgba(17, 17, 28, .90);
    --labs-text: var(--sw-dark-text);
    --labs-muted: var(--sw-dark-muted);
    --labs-line: rgba(216, 222, 232, .20);
    --labs-blue: var(--sw-skunk-blue);
    --labs-cyan: var(--sw-blue-on-dark);
    --labs-violet: var(--sw-ink-navy);
    --labs-amber: var(--sw-signal-orange);
  }
}

/* Academy-wide foundation ------------------------------------------------- */
html { background: var(--sk-bg); }
body:not([data-swa-theme-scope="isolated"]) {
  background: var(--sk-bg-gradient) !important;
  color: var(--sk-text-primary) !important;
  font-family: var(--swa-font-sans) !important;
  text-rendering: optimizeLegibility;
  --bg: var(--sk-bg) !important;
  --panel: var(--sk-layer-01) !important;
  --surface: var(--sk-layer-01) !important;
  --surface-2: var(--sk-layer-02) !important;
  --surface2: var(--sk-layer-02) !important;
  --surface-3: var(--sk-layer-03) !important;
  --surface3: var(--sk-layer-03) !important;
  --text: var(--sk-text-primary) !important;
  --text-color: var(--sk-text-primary) !important;
  --muted: var(--sk-text-secondary) !important;
  --muted-color: var(--sk-text-secondary) !important;
  --line: var(--sk-border-subtle) !important;
  --border-color: var(--sk-border-subtle) !important;
  --accent: var(--sk-interactive) !important;
  --accent2: var(--sk-brand-ink) !important;
  --primary: var(--sk-interactive) !important;
  --link: var(--sk-link) !important;
  --focus: var(--sk-focus) !important;
  --warning: var(--sk-focus) !important;
  --shadow: var(--sk-shadow) !important;
}

body:not([data-swa-theme-scope="isolated"]) :where(h1, h2),
.swa-global-nav__brand-text {
  font-family: var(--swa-font-display) !important;
}
body:not([data-swa-theme-scope="isolated"]) :where(main, [role="main"], .site-main) {
  color: var(--sk-text-primary);
  font-family: var(--swa-font-sans);
}
body:not([data-swa-theme-scope="isolated"]) :where(main, [role="main"], .site-main) :where(a:not(.btn):not(.button):not(.sk-button):not(.swa-button):not([data-sk-component="button"])) {
  color: var(--sk-link) !important;
  text-decoration-thickness: .08em;
  text-underline-offset: .14em;
}
body:not([data-swa-theme-scope="isolated"]) :where(main, [role="main"], .site-main) :where(.card, .panel, .tile, .surface, .box, [data-sk-component="card"]) {
  background: var(--sk-layer-01) !important;
  border-color: var(--sk-border-subtle) !important;
  box-shadow: var(--sk-shadow-sm) !important;
  color: var(--sk-text-primary) !important;
}
body:not([data-swa-theme-scope="isolated"]) :where(main, [role="main"], .site-main) :where(.btn, .button, .sk-button, .swa-button, [data-sk-component="button"]) {
  border-color: var(--sk-interactive) !important;
  font-family: var(--swa-font-sans) !important;
}
body:not([data-swa-theme-scope="isolated"]) :where(main, [role="main"], .site-main) :where(.btn.primary, .button.primary, .sk-button--primary, .swa-button--primary, [data-sk-component="button"][data-variant="primary"]) {
  background: var(--sk-interactive) !important;
  color: var(--sk-text-on-color) !important;
}
body:not([data-swa-theme-scope="isolated"]) :where(main, [role="main"], .site-main) :where(.btn:not(.primary), .button:not(.primary), .sk-button--secondary, .swa-button--secondary, [data-sk-component="button"][data-variant="secondary"]) {
  background: var(--sk-layer-01) !important;
  color: var(--sk-interactive) !important;
}
body:not([data-swa-theme-scope="isolated"]) :where(main, [role="main"], .site-main) :where(input:not([type="checkbox"]):not([type="radio"]):not([type="range"]), select, textarea) {
  background: var(--sk-layer-01) !important;
  border-color: var(--sk-border-subtle) !important;
  color: var(--sk-text-primary) !important;
  font-family: var(--swa-font-sans) !important;
}
body:not([data-swa-theme-scope="isolated"]) :where(main, [role="main"], .site-main) :where(input, select, textarea)::placeholder {
  color: var(--sk-text-muted) !important;
  opacity: 1;
}

/* Shared opt-in components. */
:where(.sk-button, .swa-button, [data-sk-component="button"]) {
  align-items: center;
  border: 1px solid var(--swa-action);
  border-radius: var(--swa-radius-control);
  box-sizing: border-box;
  display: inline-flex;
  font: 700 .9375rem/1.2 var(--swa-font-sans);
  gap: var(--sk-space-03, .5rem);
  justify-content: center;
  min-height: var(--swa-control-height);
  padding: var(--swa-space-control-y) var(--swa-space-control-x);
  text-decoration: none;
  transition: background-color var(--sk-transition, 160ms ease), border-color var(--sk-transition, 160ms ease), box-shadow var(--sk-transition, 160ms ease), color var(--sk-transition, 160ms ease), transform var(--sk-transition, 160ms ease);
}
:where(.sk-button--primary, .swa-button--primary, [data-sk-component="button"][data-variant="primary"]) {
  background: var(--swa-action);
  color: var(--swa-action-text);
}
:where(.sk-button--primary, .swa-button--primary, [data-sk-component="button"][data-variant="primary"]):hover {
  background: var(--swa-action-hover);
  border-color: var(--swa-action-hover);
  color: var(--swa-action-text);
  text-decoration: none;
}
:where(.sk-button--secondary, .swa-button--secondary, [data-sk-component="button"][data-variant="secondary"]) {
  background: var(--swa-surface);
  color: var(--swa-action);
}
:where(.sk-card, .swa-card, [data-sk-component="card"]) {
  background: var(--swa-surface);
  border: 1px solid var(--swa-border);
  border-radius: var(--swa-radius-surface);
  box-shadow: var(--swa-shadow);
  color: var(--swa-text);
}
:where(.sk-field, .swa-field, [data-sk-component="field"]) :is(input, select, textarea) {
  background: var(--swa-surface);
  border: 1px solid var(--swa-border);
  border-radius: var(--swa-radius-control);
  box-sizing: border-box;
  color: var(--swa-text);
  font: 400 1rem/1.45 var(--swa-font-sans);
  min-height: var(--swa-control-height);
  padding: var(--swa-space-control-y) var(--swa-space-control-x);
  width: 100%;
}
:where(.sk-field, .swa-field, [data-sk-component="field"]) :is(input, select, textarea)::placeholder {
  color: var(--swa-text-muted);
  opacity: 1;
}
:where(.sk-button, .swa-button, [data-sk-component="button"], .sk-field, .swa-field, [data-sk-component="field"]) :focus-visible,
:where(.sk-button, .swa-button, [data-sk-component="button"]):focus-visible {
  outline: 3px solid var(--swa-focus);
  outline-offset: 3px;
}
:where(.sk-notice, .swa-notice, [data-sk-component="notice"]) {
  border-inline-start: .25rem solid var(--swa-action);
  color: var(--swa-text);
  padding: var(--sk-space-05, 1rem);
}
:where(.sk-prose, .swa-prose, [data-sk-component="prose"]) {
  color: var(--swa-text);
  font-family: var(--swa-font-sans);
}

/* Runtime page contrast contract ----------------------------------------- */
.document,
.document > .cover,
section.cover {
  background-color: var(--sw-white) !important;
  background-image: none !important;
}
.document > .cover,
section.cover { color: var(--sw-graphite) !important; }
.document > .cover :where(h1, h2, h3, h4, h5, h6, strong, b),
section.cover :where(h1, h2, h3, h4, h5, h6, strong, b) { color: var(--sw-graphite) !important; }
.document > .cover :where(p, span, div, label, small),
section.cover :where(p, span, div, label, small) { color: var(--sw-slate-text); }

[data-swa-surface-tone="light"] {
  --swa-surface-text: var(--sw-graphite);
  --swa-surface-muted: var(--sw-slate-text);
  --swa-surface-link: #1756a9;
  color: var(--swa-surface-text) !important;
}
[data-swa-surface-tone="dark"] {
  --swa-surface-text: var(--sw-dark-text);
  --swa-surface-muted: var(--sw-dark-muted);
  --swa-surface-link: var(--sw-blue-on-dark);
  color: var(--swa-surface-text) !important;
}
[data-swa-surface-tone] :where(h1, h2, h3, h4, h5, h6, strong, b, dt, legend) { color: var(--swa-surface-text) !important; }
[data-swa-surface-tone] :where(p, li, dd, small, figcaption, label, blockquote, cite) { color: var(--swa-surface-muted) !important; }
[data-swa-surface-tone] a:not(.btn):not(.button):not([class*="button"]):not([role="button"]) { color: var(--swa-surface-link) !important; }
[data-swa-surface-tone] :where(.btn, .button, [class*="button"], [role="button"]) { isolation: isolate; }
[data-swa-contrast="preserve"],
[data-swa-contrast="preserve"] * {
  --swa-surface-text: inherit;
  --swa-surface-muted: inherit;
  --swa-surface-link: inherit;
}

/* Shared shell/footer: keep Academy chrome strictly monochrome.
   Brand blue remains available to page content and CTAs, but never fills the
   global header, menu drawer, search panel or shell divider. */
.swa-global-nav {
  --swa-bg: #000000 !important;
  --swa-panel: #000000 !important;
  --swa-panel-strong: #1a1a1a !important;
  --swa-text: #ffffff !important;
  --swa-muted: #d9d9d9 !important;
  --swa-line: rgba(255, 255, 255, .28) !important;
  --swa-accent: #ffffff !important;
  --swa-link: #ffffff !important;
  background: #000000 !important;
  color: #ffffff !important;
  font-family: var(--swa-font-sans) !important;
}
.swa-global-nav__brand { font-family: var(--swa-font-display) !important; }
.swa-global-nav::after {
  height: 1px !important;
  background: #ffffff !important;
  opacity: .32 !important;
}
.swa-global-nav__sign-in,
.swa-global-nav__sign-in:hover,
.swa-global-nav__sign-in:focus {
  color: #ffffff !important;
}
.swa-global-nav__search:hover,
.swa-global-nav__search:focus,
.swa-global-nav__toggle:hover,
.swa-global-nav__toggle:focus,
.swa-global-nav__toggle[aria-expanded="true"] {
  background: #1a1a1a !important;
  color: #ffffff !important;
}

.swa-global-footer {
  --swa-footer-bg: #ffffff !important;
  --swa-footer-text: #000000 !important;
  --swa-footer-muted: #404040 !important;
  --swa-footer-hover: #f2f2f2 !important;
  --swa-footer-line: #d0d0d0 !important;
  --swa-footer-focus: #000000 !important;
  background: #ffffff !important;
  color: #000000 !important;
  font-family: var(--swa-font-sans) !important;
}
.swa-global-footer__social-icon,
.swa-global-footer__privacy-mark,
.swa-global-footer__privacy-mark::before,
.swa-global-footer__privacy-mark::after {
  color: currentColor !important;
}
html[data-swa-theme="dark"] .swa-global-footer,
html[data-theme="dark"] .swa-global-footer {
  --swa-footer-bg: #000000 !important;
  --swa-footer-text: #ffffff !important;
  --swa-footer-muted: #d9d9d9 !important;
  --swa-footer-hover: #1a1a1a !important;
  --swa-footer-line: rgba(255, 255, 255, .28) !important;
  --swa-footer-focus: #ffffff !important;
  background: #000000 !important;
  color: #ffffff !important;
}

/* Shared footer: compact channel cards and generous separation, as in the
   Academy reference. Keep these refinements in the global brand layer. */
@media (min-width: 1200px) {
  .swa-global-footer .swa-global-footer__social .container {
    grid-template-columns: repeat(6, minmax(0, 1fr)) !important;
  }
}
.swa-global-footer__theme summary,
.swa-global-footer__theme-option,
.swa-global-footer__utility a {
  min-height: 44px !important;
}
.swa-global-footer__social-link span {
  overflow-wrap: anywhere !important;
}
.swa-global-footer__theme-menu {
  background: var(--swa-footer-bg) !important;
  color: var(--swa-footer-text) !important;
}

/* Primary actions stay blue. Signal Orange is reserved for focus, alerts and
   restrained editorial emphasis. */
.sk-button--primary,
.btn.primary,
.button.primary,
.primary-button,
.cta-primary {
  background-color: var(--sw-skunk-blue) !important;
  border-color: var(--sw-skunk-blue) !important;
  color: var(--sw-white) !important;
}
.sk-button--primary:hover,
.btn.primary:hover,
.button.primary:hover,
.primary-button:hover,
.cta-primary:hover {
  background-color: var(--sw-skunk-blue-hover) !important;
  border-color: var(--sw-skunk-blue-hover) !important;
}
.btn.primary,
.button.primary { background-image: linear-gradient(135deg, var(--sw-skunk-blue), var(--sw-skunk-blue-hover)) !important; }

:where(a, button, input, select, textarea, summary, [tabindex]):focus-visible {
  outline: 3px solid var(--sw-signal-orange);
  outline-offset: 3px;
}
::selection {
  background: color-mix(in srgb, var(--sw-skunk-blue) 28%, transparent);
  color: inherit;
}

@media (prefers-reduced-motion: reduce) {
  :where(.sk-button, .swa-button, [data-sk-component="button"]) { transition: none; }
}
@media (forced-colors: active) {
  [data-swa-surface-tone] { forced-color-adjust: auto; }
  :focus-visible { outline: 3px solid CanvasText !important; outline-offset: 3px !important; }
}

/* WCAG contrast and publisher surface safeguards. */
/*
  Skunkworks Academy accessibility contrast contract.
  Loaded after page/theme CSS. It provides WCAG 2.2 AA-safe foreground tokens
  and explicit publisher component foreground/background pairings.

  This file includes:
  - Enhanced semantic color tokens with improved contrast ratios
  - Explicit light/dark theme definitions
  - Fallback colors for legacy browser support
  - Robust error handling for missing CSS custom properties
*/

:root {
  /* Accessibility-safe link colors with improved contrast */
  --sk-a11y-link-light: #0050b3;
  --sk-a11y-link-dark: #8ab4ff;
  --sk-a11y-signal-orange: #c93400;

  /* Interactive text: darker for better contrast against light backgrounds */
  --sk-interactive-text: #0043ce;

  /* Semantic text colors: all designed to meet 4.5:1 minimum ratio */
  --sk-text-success: #137333;      /* Dark green for light backgrounds */
  --sk-text-warning: #8a4b00;      /* Dark brown for light backgrounds */
  --sk-text-danger: #b42318;       /* Dark red for light backgrounds */
  --sk-text-info: #0043ce;         /* Dark blue for light backgrounds */

  /* Legacy namespace for backward compatibility */
  --signal-orange: var(--sk-a11y-signal-orange);

  /* Publisher surface/foreground contract — light presentation.
     All foreground/background pairs meet 4.5:1 minimum for normal text */
  --sk-pub-page-bg: #ffffff;
  --sk-pub-soft-bg: #f7f9fc;
  --sk-pub-card-bg: #ffffff;
  --sk-pub-step-bg: #ffffff;
  --sk-pub-inverse-bg: #03033a;
  --sk-pub-border: #d8dee8;
  --sk-pub-heading: #03033a;       /* 15.4:1 on white */
  --sk-pub-text: #15171a;          /* 14.8:1 on white */
  --sk-pub-muted: #303846;         /* 8.4:1 on white */
  --sk-pub-link: #004f9e;          /* 9.2:1 on white */
  --sk-pub-link-hover: #003a75;    /* 11.8:1 on white */
  --sk-pub-eyebrow: #8f2500;       /* 7.2:1 on white */
  --sk-pub-tag-bg: #eaf2ff;
  --sk-pub-tag-text: #003a75;      /* 10.5:1 on tag-bg */
  --sk-pub-on-inverse: #f7fbff;   /* 12.2:1 on inverse-bg */
  --sk-pub-on-inverse-muted: #dce6ff; /* 8.1:1 on inverse-bg */
  --sk-pub-on-inverse-link: #b9d7ff; /* 7.4:1 on inverse-bg */
  --sk-pub-hero-eyebrow: #b9d7ff;
  --sk-pub-focus: #004f9e;
}

/* Light theme (explicit) */
:root[data-theme="light"] {
  --sk-link: var(--sk-a11y-link-light) !important;
  --sk-focus: var(--sk-a11y-signal-orange) !important;
  --sk-interactive-text: #0043ce;
  --sk-text-success: #137333;
  --sk-text-warning: #8a4b00;
  --sk-text-danger: #b42318;
  --sk-text-info: #0043ce;
}

/* Dark theme */
:root[data-theme="dark"],
:root[data-swa-theme="dark"],
[data-theme="dark"] {
  --sk-link: var(--sk-a11y-link-dark) !important;
  --sk-focus: var(--sk-a11y-signal-orange) !important;
  --sk-interactive-text: var(--sk-a11y-link-dark); /* 9.3:1 on dark surfaces */
  --sk-text-success: #6fdc8c;      /* Light green for dark backgrounds, 5.8:1 ratio */
  --sk-text-warning: #f1c21b;      /* Light yellow for dark backgrounds, 6.4:1 ratio */
  --sk-text-danger: #ff8389;       /* Light red for dark backgrounds, 4.8:1 ratio */
  --sk-text-info: #78a9ff;         /* Light blue for dark backgrounds, 7.2:1 ratio */

  /* Publisher surface/foreground contract — dark presentation.
     All foreground/background pairs meet 4.5:1 minimum for normal text */
  --sk-pub-page-bg: #0f1115;
  --sk-pub-soft-bg: #151922;
  --sk-pub-card-bg: #191e27;
  --sk-pub-step-bg: #202631;
  --sk-pub-inverse-bg: #03033a;
  --sk-pub-border: #3b4554;
  --sk-pub-heading: #f8fafc;       /* 15.2:1 on card-bg */
  --sk-pub-text: #f1f5f9;          /* 14.1:1 on card-bg */
  --sk-pub-muted: #cbd5e1;         /* 6.2:1 on card-bg */
  --sk-pub-link: #8ab4ff;          /* 6.8:1 on card-bg */
  --sk-pub-link-hover: #b9d7ff;    /* 5.4:1 on card-bg */
  --sk-pub-eyebrow: #ffb38f;       /* 4.6:1 on card-bg */
  --sk-pub-tag-bg: #102a46;
  --sk-pub-tag-text: #b9d7ff;      /* 7.2:1 on tag-bg */
  --sk-pub-on-inverse: #f7fbff;   /* 12.2:1 on inverse-bg */
  --sk-pub-on-inverse-muted: #dce6ff; /* 8.1:1 on inverse-bg */
  --sk-pub-on-inverse-link: #b9d7ff; /* 7.4:1 on inverse-bg */
  --sk-pub-hero-eyebrow: #b9d7ff;
  --sk-pub-focus: #8ab4ff;
}

/* Media query dark theme fallback */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]):not([data-swa-theme="light"]) {
    --sk-link: var(--sk-a11y-link-dark) !important;
    --sk-focus: var(--sk-a11y-signal-orange) !important;
    --sk-interactive-text: var(--sk-a11y-link-dark);
    --sk-text-success: #6fdc8c;
    --sk-text-warning: #f1c21b;
    --sk-text-danger: #ff8389;
    --sk-text-info: #78a9ff;

    --sk-pub-page-bg: #0f1115;
    --sk-pub-soft-bg: #151922;
    --sk-pub-card-bg: #191e27;
    --sk-pub-step-bg: #202631;
    --sk-pub-inverse-bg: #03033a;
    --sk-pub-border: #3b4554;
    --sk-pub-heading: #f8fafc;
    --sk-pub-text: #f1f5f9;
    --sk-pub-muted: #cbd5e1;
    --sk-pub-link: #8ab4ff;
    --sk-pub-link-hover: #b9d7ff;
    --sk-pub-eyebrow: #ffb38f;
    --sk-pub-tag-bg: #102a46;
    --sk-pub-tag-text: #b9d7ff;
    --sk-pub-on-inverse: #f7fbff;
    --sk-pub-on-inverse-muted: #dce6ff;
    --sk-pub-on-inverse-link: #b9d7ff;
    --sk-pub-hero-eyebrow: #b9d7ff;
    --sk-pub-focus: #8ab4ff;
  }
}

/* Interactive blue is a button/background colour. Small accent text uses the
   dedicated foreground token so tags, metrics and eyebrows remain AA-safe. */
.sk-eyebrow,
.sk-tag,
.tile-kicker,
.level,
.sk-stat__value,
.metric strong,
.stat .number {
  color: var(--sk-interactive-text) !important;
}

/* Dark Academy hero surfaces keep a light accent foreground. */
.sk-hero .sk-eyebrow {
  color: #a5f3fc !important;
}

/* Fallback for missing interactive-text variable */
@supports not (color: var(--sk-interactive-text)) {
  .sk-eyebrow,
  .sk-tag,
  .tile-kicker,
  .level,
  .sk-stat__value,
  .metric strong,
  .stat .number {
    color: #0043ce !important;
  }
}

/* -------------------------------------------------------------------------
   Publisher page contrast contract
   Every foreground below is paired with the surface that actually contains it.
   This prevents generic design-system or theme colours from producing dark-on-
   dark or light-on-light combinations in the Academy homepage content.

   All pairs are validated to meet WCAG 2.2 Level AA minimum 4.5:1 for normal text.
   --------------------------------------------------------------------- */

main .hero {
  color: var(--swa-surface-text, var(--sk-text-primary)) !important;
}
main .hero h1 {
  color: var(--swa-surface-text, var(--sk-text-primary)) !important;
}
main .hero .lead {
  color: var(--swa-surface-muted, var(--sk-text-secondary)) !important;
}
main .hero .eyebrow {
  color: var(--swa-surface-link, var(--sk-link)) !important;
}
main .hero .btn.inverse {
  color: #ffffff !important;
  border-color: rgba(255, 255, 255, .62) !important;
}
main .hero .btn.primary {
  color: #ffffff !important;
}

main .hero .proof-panel {
  background: var(--sk-pub-card-bg) !important;
  border-color: var(--sk-pub-border) !important;
  color: var(--sk-pub-text) !important;
}
main .hero .proof-panel h2,
main .hero .proof-panel li {
  color: var(--sk-pub-text) !important;
}

main .section {
  background: var(--sk-pub-page-bg) !important;
  color: var(--sk-pub-text) !important;
}
main .section.soft {
  background: var(--sk-pub-soft-bg) !important;
}

main .section .section-heading h2,
main .section .card h3,
main .section .author-card h2,
main .section .resource-panel h2 {
  color: var(--sk-pub-heading) !important;
}

main .section .section-heading > p:not(.eyebrow),
main .section .card > p,
main .section .author-card > p,
main .section .resource-panel p,
main .section .steps,
main .section .steps li {
  color: var(--sk-pub-muted) !important;
}

main .section .eyebrow {
  color: var(--sk-pub-eyebrow) !important;
}

main .section .card,
main .section .author-card {
  background: var(--sk-pub-card-bg) !important;
  border-color: var(--sk-pub-border) !important;
  color: var(--sk-pub-text) !important;
}

main .section .resource-panel {
  background: var(--sk-pub-soft-bg) !important;
  border-color: var(--sk-pub-border) !important;
  color: var(--sk-pub-text) !important;
}

main .section .steps {
  background: var(--sk-pub-step-bg) !important;
  border: 1px solid var(--sk-pub-border) !important;
}

main .section .tag {
  background: var(--sk-pub-tag-bg) !important;
  color: var(--sk-pub-tag-text) !important;
}

main .section .card-link,
main .section .author-card > a {
  color: var(--sk-pub-link) !important;
  text-decoration: underline !important;
  text-decoration-thickness: .08em !important;
  text-underline-offset: .16em !important;
}

main .section .card-link:hover,
main .section .author-card > a:hover {
  color: var(--sk-pub-link-hover) !important;
  text-decoration-thickness: .12em !important;
}

main .section .card-link:focus-visible,
main .section .author-card > a:focus-visible,
main .section .policy-card > a:focus-visible {
  outline: 3px solid var(--sk-pub-focus) !important;
  outline-offset: 3px !important;
}

/* The policy card is deliberately inverse. Its foregrounds therefore use the
   inverse palette instead of inheriting the surrounding section colours. */
main .section .policy-card {
  background: var(--sk-pub-inverse-bg) !important;
  border-color: rgba(255, 255, 255, .20) !important;
  color: var(--sk-pub-on-inverse-muted) !important;
}
main .section .policy-card h2 {
  color: var(--sk-pub-on-inverse) !important;
}
main .section .policy-card li {
  color: var(--sk-pub-on-inverse-muted) !important;
}
main .section .policy-card > a {
  color: var(--sk-pub-on-inverse-link) !important;
  text-decoration: underline !important;
  text-decoration-thickness: .08em !important;
  text-underline-offset: .16em !important;
}
main .section .policy-card > a:hover {
  color: #ffffff !important;
}

/* Buttons keep explicit foregrounds because they sit on interactive surfaces,
   not on the surrounding section background. */
main .section .btn.primary {
  color: #ffffff !important;
}

/* Inline links must remain identifiable without colour perception alone. */
.article a:not(.btn):not(.sk-button),
.sk-document a:not(.btn):not(.sk-button),
.document a:not(.btn):not(.sk-button),
.sk-card__text a:not(.btn):not(.sk-button),
.card p a:not(.btn):not(.sk-button) {
  text-decoration: underline;
  text-decoration-thickness: .08em;
  text-underline-offset: .15em;
}

/* Preserve a visible keyboard focus indicator in forced-colour environments. */
@media (forced-colors: active) {
  :focus-visible {
    outline: 3px solid CanvasText !important;
    outline-offset: 3px !important;
  }
}

/* Print stylesheet support for audit tools */
@media print {
  :root {
    --sk-text-success: #137333;
    --sk-text-warning: #8a4b00;
    --sk-text-danger: #b42318;
    --sk-text-info: #0043ce;
  }
}

/* Homepage split-hero contrast contract. */
/*
  Skunkworks Academy hero contrast fix
  Scope: homepage split hero only.
  Purpose: prevent low-contrast dark text inheritance on the dark hero surface.
*/

.sk-hero .sk-hero__inner--split {
  --sk-hero-surface: #050816;
  --sk-hero-surface-strong: #0f172a;
  --sk-hero-text: #ffffff;
  --sk-hero-muted: #dbeafe;
  --sk-hero-soft: #bfdbfe;
  --sk-hero-accent: #60a5fa;
  --sk-hero-border: rgba(147, 197, 253, 0.34);

  color: var(--sk-hero-text) !important;
}

.sk-hero .sk-hero__inner--split .sk-hero__content,
.sk-hero .sk-hero__inner--split .sk-hero__aside {
  color: var(--sk-hero-text) !important;
}

.sk-hero .sk-hero__inner--split .sk-eyebrow {
  color: var(--sk-hero-accent) !important;
  opacity: 1 !important;
}

.sk-hero .sk-hero__inner--split h1,
.sk-hero .sk-hero__inner--split h2,
.sk-hero .sk-hero__inner--split .sk-hero__aside h2 {
  color: var(--sk-hero-text) !important;
  opacity: 1 !important;
  text-shadow: 0 2px 18px rgba(0, 0, 0, 0.36);
}

.sk-hero .sk-hero__inner--split .sk-hero__lead,
.sk-hero .sk-hero__inner--split .sk-hero__list,
.sk-hero .sk-hero__inner--split .sk-hero__list li {
  color: var(--sk-hero-muted) !important;
  opacity: 0.96 !important;
}

.sk-hero .sk-hero__inner--split .sk-hero__aside {
  background:
    linear-gradient(135deg, rgba(15, 23, 42, 0.94), rgba(17, 24, 39, 0.9)) !important;
  border-color: var(--sk-hero-border) !important;
  box-shadow:
    0 24px 70px rgba(0, 0, 0, 0.38),
    inset 0 1px 0 rgba(255, 255, 255, 0.08) !important;
}

.sk-hero .sk-hero__inner--split .sk-hero__list li::before {
  background: #2f8cff !important;
}

.sk-hero .sk-hero__inner--split .sk-button--primary {
  background: #1f7ae0 !important;
  border-color: #1f7ae0 !important;
  color: #ffffff !important;
}

.sk-hero .sk-hero__inner--split .sk-button--primary:hover,
.sk-hero .sk-hero__inner--split .sk-button--primary:focus-visible {
  background: #2f8cff !important;
  border-color: #2f8cff !important;
  color: #ffffff !important;
}

.sk-hero .sk-hero__inner--split .sk-button--secondary {
  background: #ffffff !important;
  border-color: rgba(147, 197, 253, 0.78) !important;
  color: #145fc2 !important;
}

.sk-hero .sk-hero__inner--split .sk-button--secondary:hover,
.sk-hero .sk-hero__inner--split .sk-button--secondary:focus-visible {
  background: #eff6ff !important;
  color: #0f4fa8 !important;
}

@media (prefers-color-scheme: light) {
  .sk-hero .sk-hero__inner--split {
    color: var(--sk-hero-text) !important;
  }
}