@layer normalize, base, components, utilities;

@layer base {
  html { scroll-padding-block-start: 1rem; }
  body { font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; font-size: 1rem; line-height: 1.65; color: var(--color-ink); background: var(--color-background); }
  h1, h2, h3 { line-height: 1.12; font-weight: 650; text-wrap: balance; letter-spacing: -0.035em; overflow-wrap: anywhere; hyphens: auto; }
  h1 { font-size: clamp(2.7rem, 6vw, 5.6rem); margin-block: 0 1.5rem; max-inline-size: 16ch; }
  h2 { font-size: clamp(1.9rem, 3.5vw, 3.1rem); margin-block: 0 1.3rem; }
  h3 { font-size: 1.35rem; margin-block: 0 0.8rem; letter-spacing: -0.02em; }
  p { margin-block: 0 1.2rem; }
  a { color: var(--color-accent); text-underline-offset: 0.2em; text-decoration-thickness: 0.07em; }
  a:hover { color: var(--color-accent-hover); }
  :focus-visible { outline: 0.2rem solid var(--color-focus); outline-offset: 0.25rem; }
  main:focus { outline: none; }
  ::selection { background: var(--color-accent-light); color: var(--color-selection-text); }
  ul, ol { padding-inline-start: 1.3rem; }
  li { margin-block-end: 0.5rem; }
  code { font-family: ui-monospace, monospace; overflow-wrap: anywhere; }
  summary { list-style: none; }
  summary::-webkit-details-marker { display: none; }
}

@layer components {
  .container { inline-size: min(calc(100% - 2.5rem), var(--width-content)); margin-inline: auto; }
  .section { padding-block: var(--space-section); }
  .section--soft { background: var(--color-surface-soft); }
  .section__heading { max-inline-size: 42rem; margin-block-end: 2.5rem; }
  .eyebrow { display: flex; align-items: center; gap: 0.6rem; font: 600 0.75rem/1.5 ui-monospace, monospace; text-transform: uppercase; letter-spacing: 0.12em; margin-block-end: 1.25rem; color: var(--color-accent); }
  .eyebrow::before { content: ""; inline-size: 0.55rem; block-size: 0.55rem; background: currentColor; flex-shrink: 0; }
  .lead { color: var(--color-muted); font-size: clamp(1.12rem, 1.7vw, 1.35rem); line-height: 1.65; max-inline-size: 50ch; }
  .icon { inline-size: 1.35rem; block-size: 1.35rem; stroke: currentColor; fill: var(--color-transparent); stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; flex-shrink: 0; }
  .svg-sprite { position: absolute; inline-size: 0; block-size: 0; overflow: hidden; }
  .skip-link { position: absolute; z-index: 10; inset-block-start: 0.5rem; inset-inline-start: 1rem; transform: translateY(-200%); background: var(--color-surface); padding: 0.75rem 1rem; }
  .skip-link:focus { transform: translateY(0); }
  .site-header { background: var(--color-background); border-block-end: 1px solid var(--color-line); }
  .site-header__top { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding-block: 1.3rem; }
  .brand { display: inline-flex; align-items: center; gap: 0.8rem; color: var(--color-ink); text-decoration: none; }
  .brand:hover { color: var(--color-accent); }
  .brand__icon { inline-size: 2.3rem; block-size: 2.3rem; }
  .brand__name { font-size: 1.8rem; font-weight: 750; line-height: 1; letter-spacing: -0.06em; }
  .brand__suffix { display: block; font-size: 0.65rem; text-transform: uppercase; letter-spacing: 0.18em; font-weight: 550; margin-block-start: 0.35rem; }
  .site-header__note { display: none; }
  .site-header__contact { display: inline-flex; align-items: center; gap: 0.5rem; font-size: 0.85rem; font-weight: 600; min-block-size: 2.75rem; }
  .navigation--desktop { display: none; }
  .navigation--mobile > summary { display: flex; align-items: center; justify-content: space-between; font-weight: 600; padding-block: 0.8rem; }
  .navigation__list { list-style: none; padding: 0; margin: 0; }
  .navigation__list li { margin: 0; }
  .navigation__list a { display: block; padding-block: 0.8rem; text-decoration: none; color: var(--color-muted); font-size: 0.9rem; }
  .navigation__list a:hover, .navigation__list a[aria-current] { color: var(--color-accent); text-decoration: underline; }
  .navigation__list a[aria-current] { font-weight: 650; }
  .navigation__demos { position: relative; }
  .navigation__demos > summary { display: flex; align-items: center; justify-content: space-between; gap: 0.35rem; cursor: pointer; padding-block: 0.8rem; color: var(--color-muted); font-size: 0.9rem; }
  .navigation__demos > summary:hover, .navigation__demos[open] > summary { color: var(--color-accent); }
  .navigation__demos > summary .icon { inline-size: 1rem; block-size: 1rem; }
  .navigation__submenu { list-style: none; margin: 0; padding: 0 1rem; border-inline-start: 1px solid var(--color-line); background: var(--color-background); }
  @media (min-width: 60rem) {
    .navigation__demos > summary { padding-block: 1rem; font-size: 0.8rem; }
    .navigation__submenu { position: absolute; z-index: 5; inset-block-start: 100%; inset-inline-end: 0; min-inline-size: 17rem; padding: 0.5rem 1rem; border: 1px solid var(--color-line); border-radius: var(--radius); }
  }
  .hero { padding-block: clamp(3.5rem, 7vw, 7rem); }
  .hero__grid { display: grid; gap: 3rem; align-items: center; }
  .hero__accent { color: var(--color-accent); }
  .hero__actions { display: flex; flex-wrap: wrap; align-items: center; gap: 1rem 1.5rem; margin-block-start: 2rem; }
  .button { display: inline-flex; justify-content: center; align-items: center; gap: 1rem; padding: 0.9rem 1.25rem; border: 1px solid var(--color-accent); border-radius: var(--radius); background: var(--color-accent); color: var(--color-on-accent); text-decoration: none; font-weight: 600; line-height: 1.4; min-block-size: 3rem; }
  .button:hover { background: var(--color-accent-hover); border-color: var(--color-accent-hover); color: var(--color-on-accent); }
  .button--light { color: var(--color-dark); background: var(--color-accent-light); border-color: var(--color-accent-light); }
  .button--light:hover { color: var(--color-dark); background: var(--color-control-light); border-color: var(--color-control-light); }
  .text-link { display: inline-flex; align-items: center; gap: 0.7rem; font-weight: 600; padding-block: 0.7rem; }
  .hero__note { color: var(--color-muted); font-size: 0.85rem; margin-block: 1.5rem 0; }
  .blueprint { background: var(--color-dark); color: var(--color-on-dark); border-radius: var(--radius); padding: 1.5rem; position: relative; overflow: hidden; }
  .blueprint__top { display: flex; justify-content: space-between; align-items: center; border-block-end: 1px solid var(--color-line-dark); padding-block-end: 1rem; gap: 1rem; font: 0.7rem/1.5 ui-monospace, monospace; color: var(--color-muted-dark); }
  .blueprint__tag { color: var(--color-accent-light); border: 1px solid var(--color-line-dark); padding: 0.25rem 0.55rem; }
  .blueprint__window { padding: 1.4rem; margin-block: 2rem; border: 1px solid var(--color-line-dark); background: var(--color-dark); }
  .blueprint__window .icon { color: var(--color-accent-light); margin-block-end: 1.2rem; inline-size: 2rem; block-size: 2rem; }
  .blueprint__title { font-size: 1.5rem; line-height: 1.3; font-weight: 600; max-inline-size: 14ch; margin-block-end: 1.25rem; }
  .blueprint__line { block-size: 0.35rem; inline-size: 85%; background: var(--color-line-dark); margin-block-end: 0.7rem; }
  .blueprint__line--short { inline-size: 60%; }
  .blueprint__blocks { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.65rem; margin-block-start: 1.5rem; }
  .blueprint__blocks span { border: 1px solid var(--color-line-dark); block-size: 3rem; display: grid; place-items: center; }
  .blueprint__blocks .icon { margin: 0; inline-size: 1.3rem; block-size: 1.3rem; }
  .blueprint__bottom { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 1rem; font: 0.7rem/1.5 ui-monospace, monospace; color: var(--color-muted-dark); }
  .principles { border-block: 1px solid var(--color-line); padding-block: 1.4rem; }
  .principles__list { display: flex; flex-wrap: wrap; gap: 1rem 2rem; justify-content: space-between; padding: 0; list-style: none; margin-block: 0; margin-inline: auto; font-size: 0.85rem; color: var(--color-muted); }
  .principles__list li { display: flex; align-items: center; gap: 0.5rem; margin: 0; }
  .principles__list .icon { color: var(--color-accent); }
  .cards { display: grid; gap: 1rem; }
  .service-card { padding: 1.6rem; border: 1px solid var(--color-line); background: var(--color-surface); border-radius: var(--radius); display: flex; flex-direction: column; align-items: flex-start; }
  .service-card--featured { border-color: var(--color-accent); background: var(--color-surface-soft); }
  .service-card__top { display: flex; inline-size: 100%; justify-content: space-between; align-items: center; margin-block-end: 2rem; }
  .service-card__top .icon { inline-size: 1.8rem; block-size: 1.8rem; color: var(--color-accent); }
  .service-card__number { font: 0.75rem/1 ui-monospace, monospace; color: var(--color-muted); }
  .service-card p { color: var(--color-muted); }
  .service-card .text-link { margin-block-start: auto; font-size: 0.9rem; }
  .split { display: grid; gap: 2.5rem; align-items: start; }
  .check-list { list-style: none; padding: 0; margin: 1.5rem 0; }
  .check-list li { display: flex; align-items: flex-start; gap: 0.75rem; margin-block-end: 0.8rem; }
  .check-list .icon { margin-block-start: 0.2rem; color: var(--color-accent); }
  .audit { background: var(--color-surface); border: 1px solid var(--color-line); border-radius: var(--radius); padding: 1.5rem; }
  .audit__label { font: 0.75rem/1.5 ui-monospace, monospace; color: var(--color-muted); text-transform: uppercase; letter-spacing: 0.07em; }
  .audit__list { list-style: none; padding: 0; margin-block: 1.5rem 0; }
  .audit__list li { display: flex; gap: 1rem; justify-content: space-between; padding-block: 0.9rem; border-block-start: 1px solid var(--color-line); margin: 0; }
  .audit__list span { color: var(--color-muted); font-size: 0.8rem; text-align: end; }
  .steps { list-style: none; padding: 0; margin: 0; display: grid; gap: 2rem; counter-reset: step; }
  .steps li { counter-increment: step; margin: 0; }
  .steps li::before { content: "0" counter(step); display: block; color: var(--color-accent); font: 0.8rem/1.5 ui-monospace, monospace; border-block-start: 1px solid var(--color-line); padding-block: 1.1rem 1.5rem; }
  .steps p { color: var(--color-muted); font-size: 0.95rem; }
  .cta { background: var(--color-dark); color: var(--color-on-dark); }
  .cta__inner { display: flex; flex-direction: column; align-items: flex-start; gap: 2rem; }
  .cta__inner > div { max-inline-size: 42rem; }
  .cta .eyebrow { color: var(--color-accent-light); }
  .cta p:not(.eyebrow) { color: var(--color-muted-dark); margin-block-end: 0; }
  .cta :focus-visible, .site-footer :focus-visible { outline-color: var(--color-accent-light); }
  .breadcrumb { display: flex; flex-wrap: wrap; gap: 0.75rem; font-size: 0.8rem; color: var(--color-muted); padding-block-start: 1.6rem; }
  .page-hero { padding-block: clamp(2.5rem, 5vw, 5rem); }
  .page-hero h1 { max-inline-size: 20ch; font-size: clamp(2.4rem, 5vw, 4.5rem); }
  .page-hero .lead { max-inline-size: 60ch; }
  .prose { max-inline-size: 47rem; overflow-wrap: anywhere; }
  .prose h2 { margin-block-start: 2.5rem; font-size: clamp(1.6rem, 3vw, 2.3rem); }
  .prose h2:first-child { margin-block-start: 0; }
  .prose h3 { margin-block-start: 1.8rem; }
  .prose p, .prose li { color: var(--color-muted); }
  .notice { padding: 1.25rem; border-inline-start: 0.25rem solid var(--color-accent); background: var(--color-surface-soft); border-radius: var(--radius); margin-block-end: 1.5rem; }
  .notice p:last-child { margin-block-end: 0; }
  .flow { list-style: none; padding: 0; margin: 2rem 0 0; display: grid; gap: 0.75rem; counter-reset: flow; }
  .flow li { counter-increment: flow; display: flex; align-items: flex-start; gap: 1rem; border: 1px solid var(--color-line); background: var(--color-surface); border-radius: var(--radius); padding: 1.1rem; margin: 0; }
  .flow li::before { content: counter(flow); font: 600 0.8rem/1.8 ui-monospace, monospace; color: var(--color-accent); flex-shrink: 0; }
  .flow strong { display: block; }
  .flow span { color: var(--color-muted); font-size: 0.9rem; }
  .questions { border-block-start: 1px solid var(--color-line); }
  .questions details { padding-block: 1.2rem; border-block-end: 1px solid var(--color-line); }
  .questions summary { display: flex; justify-content: space-between; align-items: center; gap: 1rem; font-weight: 600; min-block-size: 2rem; }
  .questions details[open] summary { margin-block-end: 1rem; }
  .questions details[open] summary .icon { transform: rotate(45deg); }
  .questions p:last-child { margin: 0; }
  .site-footer { background: var(--color-dark); color: var(--color-on-dark); border-block-start: 1px solid var(--color-line-dark); padding-block: 3rem 1.5rem; }
  .site-footer__grid { display: grid; gap: 2rem; }
  .brand--footer { color: var(--color-on-dark); }
  .site-footer p { color: var(--color-muted-dark); font-size: 0.9rem; margin-block: 1rem 0; }
  .site-footer__heading { font-size: 0.8rem; line-height: 1.5; letter-spacing: 0; margin-block-end: 1rem; color: var(--color-on-dark); }
  .site-footer ul { list-style: none; padding: 0; margin: 0; }
  .site-footer li { margin: 0; }
  .site-footer nav a { display: inline-block; padding-block: 0.45rem; }
  .site-footer a { color: var(--color-muted-dark); font-size: 0.9rem; text-decoration: none; }
  .site-footer a:hover { color: var(--color-accent-light); text-decoration: underline; }
  .site-footer__bottom { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 1rem; border-block-start: 1px solid var(--color-line-dark); padding-block-start: 1.5rem; margin-block-start: 3rem; font-size: 0.75rem; color: var(--color-muted-dark); }
  @media (min-width: 40rem) {
    .container { inline-size: min(calc(100% - 4rem), var(--width-content)); }
    .cards { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .steps { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .site-footer__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .site-header__note { display: block; margin: 0; color: var(--color-muted); font-size: 0.8rem; }
    .blueprint { padding: 2rem; }
  }
  @media (min-width: 60rem) {
    .navigation--desktop { display: block; }
    .navigation--mobile { display: none; }
    .navigation__list { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 1rem; border-block-start: 1px solid var(--color-line); }
    .navigation__list a { padding-block: 1rem; font-size: 0.8rem; }
    .hero__grid { grid-template-columns: 1.4fr 1fr; gap: 4rem; }
    .split { grid-template-columns: 1fr 1fr; gap: 4rem; }
    .cards--four { grid-template-columns: repeat(4, minmax(0, 1fr)); }
    .steps { grid-template-columns: repeat(4, minmax(0, 1fr)); }
    .cta__inner { flex-direction: row; justify-content: space-between; align-items: center; }
    .cta .button { flex-shrink: 0; }
    .site-footer__grid { grid-template-columns: 1.3fr 1fr 1fr; }
  }
}

@layer utilities {
  .visually-hidden { position: absolute; inline-size: 0.0625rem; block-size: 0.0625rem; padding: 0; margin: -0.0625rem; overflow: hidden; clip-path: inset(50%); white-space: nowrap; border: 0; }
}