:root {
  --ink: #0a0a0a;
  --ink-soft: #15171b;
  --slate: #6b7280;
  --slate-light: #9ba3af;
  --mist: #f2f4f7;
  --white: #ffffff;
  --blue: #2563eb;
  --blue-dark: #1749bb;
  --line: #d8dde5;
  --line-dark: #2d323b;
  --sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  --max: 1180px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--mist); color: var(--ink); font-family: var(--sans); line-height: 1.55; }
body.page-dark { background: var(--ink); color: var(--mist); }
a { color: inherit; text-decoration: none; }
a:hover { color: var(--blue); }
a:focus-visible, button:focus-visible { outline: 3px solid var(--blue); outline-offset: 3px; }
.skip-link { position: fixed; top: 12px; left: 12px; z-index: 10; padding: 8px 12px; background: var(--blue); color: var(--white); transform: translateY(-150%); transition: transform .15s ease; }
.skip-link:focus { transform: translateY(0); color: var(--white); }
code, pre { font-family: var(--mono); }
code { font-size: .88em; }
.site-header { width: min(calc(100% - 48px), var(--max)); margin: 0 auto; min-height: 84px; display: flex; align-items: center; gap: 34px; }
.brand-lockup, .footer-brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 700; letter-spacing: -.04em; }
.page-dark .brand-lockup img, .page-dark .footer-brand img { filter: invert(1); }
.brand-lockup { font-size: 1.32rem; }
.brand-lockup img, .footer-brand img { object-fit: contain; }
.site-nav { display: flex; align-items: center; gap: 24px; margin-left: auto; }
.nav-link { color: var(--slate); font-size: .9rem; }
.nav-link.is-active, .nav-link:hover { color: var(--ink); }
.page-dark .nav-link.is-active, .page-dark .nav-link:hover { color: var(--white); }
.header-cta { background: var(--blue); color: var(--white); padding: 10px 15px; border-radius: 999px; font-size: .86rem; font-weight: 650; }
.header-cta:hover { color: var(--white); background: var(--blue-dark); }
.hero { width: 100%; }
.hero-dark { background: var(--ink); color: var(--mist); display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(360px, .9fr); gap: 72px; min-height: 665px; padding: 108px max(24px, calc((100vw - var(--max)) / 2)) 92px; position: relative; overflow: hidden; }
.hero-dark::after { content: ""; position: absolute; width: 420px; height: 420px; border: 1px solid #27303b; border-radius: 50%; right: -160px; bottom: -210px; box-shadow: 0 0 0 44px #11151a, 0 0 0 45px #27303b, 0 0 0 90px #11151a, 0 0 0 91px #27303b; opacity: .7; }
.hero-copy { max-width: 700px; position: relative; z-index: 1; }
.eyebrow, .section-kicker, .card-kicker, .code-label, .node-kicker, .visual-topline, .visual-bottomline, .feature-number, .example-meta, .space-label { font-family: var(--mono); text-transform: uppercase; letter-spacing: .12em; font-size: .68rem; font-weight: 700; }
.eyebrow { color: var(--slate); margin: 0 0 22px; }
.hero-dark .eyebrow, .section-dark .eyebrow, .simulation-section .eyebrow { color: #7f8997; }
h1, h2, h3, p { margin-top: 0; }
h1 { letter-spacing: -.065em; line-height: .98; font-size: clamp(3.3rem, 7vw, 6.45rem); max-width: 760px; margin-bottom: 28px; }
h2 { letter-spacing: -.05em; line-height: 1.05; font-size: clamp(2rem, 4.2vw, 4rem); margin-bottom: 18px; }
h3 { letter-spacing: -.035em; line-height: 1.1; font-size: 1.38rem; }
.hero-lede { color: #b9c0ca; font-size: 1.2rem; max-width: 580px; margin-bottom: 34px; }
.hero-actions, .final-actions { display: flex; align-items: center; gap: 22px; flex-wrap: wrap; }
.copy-button { border: 0; border-radius: 999px; padding: 13px 17px 13px 20px; display: inline-flex; gap: 18px; align-items: center; background: var(--blue); color: var(--white); font: inherit; font-weight: 700; cursor: pointer; }
.copy-button:hover { background: #3d78f2; }
.copy-state { font-family: var(--mono); text-transform: uppercase; font-size: .63rem; letter-spacing: .1em; opacity: .74; }
.light-link { color: var(--mist); }
.light-link:hover { color: #8db0ff; }
.text-link { display: inline-flex; align-items: center; gap: 8px; font-weight: 700; font-size: .92rem; }
.hero-note { color: #7f8997; font-size: .78rem; max-width: 480px; margin-top: 54px; }
.hero-visual { align-self: center; border: 1px solid #303640; background: #101318; border-radius: 2px; padding: 24px; min-height: 310px; position: relative; z-index: 1; box-shadow: 14px 14px 0 #1a1e25; }
.visual-topline, .visual-bottomline { display: flex; justify-content: space-between; color: #6d7785; }
.status-dot { color: #72c491; }
.status-dot::before { content: ""; width: 6px; height: 6px; display: inline-block; background: #72c491; border-radius: 50%; margin: 0 8px 1px 0; }
.delivery-rail { min-height: 230px; display: flex; flex-direction: column; justify-content: center; }
.rail-node { display: grid; grid-template-columns: 36px 1fr auto; align-items: baseline; gap: 12px; padding: 11px 12px; border: 1px solid #2b323c; background: #161a20; }
.rail-node strong { font-size: 1.08rem; }
.rail-node small { color: #7f8997; font-family: var(--mono); font-size: .68rem; }
.node-kicker { color: #6d7785; }
.node-change { border-color: #385da9; background: #16223b; }
.node-evidence { border-color: #3e6c53; }
.rail-line { height: 17px; width: 1px; background: #3b4552; margin-left: 28px; }
.section { padding: 110px max(24px, calc((100vw - var(--max)) / 2)); }
.section-intro { background: var(--white); }
.section-kicker { color: var(--blue); margin-bottom: 30px; }
.intro-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 80px; align-items: start; }
.intro-grid h2 { max-width: 650px; }
.intro-grid p { color: var(--slate); font-size: 1.1rem; max-width: 500px; }
.section-dark, .simulation-section { background: var(--ink); color: var(--mist); }
.section-heading { max-width: 720px; margin-bottom: 54px; }
.section-heading h2 { margin-bottom: 0; }
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line-dark); border: 1px solid var(--line-dark); }
.feature-card { background: var(--ink); padding: 28px; min-height: 300px; display: flex; flex-direction: column; }
.feature-card .feature-number { color: #52606f; margin-bottom: auto; }
.feature-card h3 { max-width: 260px; margin: 28px 0 12px; }
.feature-card p { color: #a4acb8; font-size: .95rem; max-width: 290px; }
.feature-card a { color: #8db0ff; font-size: .82rem; font-weight: 700; margin-top: auto; }
.feature-card a:hover { color: var(--white); }
.command-section { background: var(--mist); }
.command-layout { display: grid; grid-template-columns: 1.1fr .9fr; gap: 80px; align-items: start; }
.code-block { border: 1px solid var(--line); background: #e9edf2; overflow: hidden; }
.code-label { padding: 11px 16px; color: var(--slate); border-bottom: 1px solid var(--line); }
.code-block pre { margin: 0; padding: 20px; overflow-x: auto; color: var(--ink); font-size: .85rem; line-height: 1.75; white-space: pre-wrap; }
.hero-dark .code-block { border-color: #303640; background: #11151a; }
.hero-dark .code-label { border-color: #303640; color: #7f8997; }
.hero-dark .code-block pre { color: var(--mist); }
.caption { color: var(--slate); font-size: .82rem; margin-top: 15px; max-width: 540px; }
.command-aside { padding-top: 15px; max-width: 400px; }
.command-aside p { color: var(--slate); font-size: 1.1rem; }
.mini-flow { display: flex; align-items: center; gap: 11px; color: var(--ink); font-family: var(--mono); font-size: .75rem; text-transform: uppercase; letter-spacing: .08em; margin: 32px 0; flex-wrap: wrap; }
.mini-flow b { color: var(--blue); }
.section-blue { background: var(--mist); padding-top: 0; }
.blue-panel { background: var(--blue); color: var(--white); padding: 54px; display: flex; justify-content: space-between; gap: 40px; align-items: end; }
.blue-panel .eyebrow { color: #c6d6ff; }
.blue-panel h2 { max-width: 630px; }
.blue-panel p:not(.eyebrow) { color: #d9e3ff; max-width: 560px; margin-bottom: 0; }
.button { border-radius: 999px; padding: 12px 17px; display: inline-flex; align-items: center; gap: 9px; font-weight: 700; font-size: .9rem; }
.button-light { color: var(--blue); background: var(--white); white-space: nowrap; }
.button-light:hover { color: var(--blue-dark); background: #eef3ff; }
.button-dark { color: var(--white); background: var(--blue); }
.button-dark:hover { color: var(--white); background: var(--blue-dark); }
.final-cta { background: var(--white); padding-top: 130px; padding-bottom: 140px; }
.final-cta h2 { max-width: 850px; }
.final-cta .eyebrow { color: var(--blue); }
.site-footer { width: min(calc(100% - 48px), var(--max)); margin: 0 auto; min-height: 118px; display: flex; align-items: center; gap: 26px; border-top: 1px solid var(--line); color: var(--slate); font-size: .82rem; }
.page-dark .site-footer { border-color: var(--line-dark); }
.footer-brand { color: var(--ink); font-size: 1rem; }
.page-dark .footer-brand { color: var(--mist); }
.footer-links { display: flex; gap: 20px; margin-left: auto; }
.footer-links a:hover { color: var(--blue); }
.page-hero, .article-hero { width: min(calc(100% - 48px), 900px); margin: 0 auto; padding: 90px 0 70px; }
.page-hero { text-align: center; }
.page-hero h1, .article-hero h1 { font-size: clamp(3rem, 7vw, 5.6rem); max-width: 850px; margin-left: auto; margin-right: auto; }
.page-hero p:not(.eyebrow), .article-hero p:not(.eyebrow) { color: var(--slate); font-size: 1.14rem; max-width: 660px; margin-left: auto; margin-right: auto; }
.docs-grid-section, .examples-grid-section { padding-top: 10px; }
.docs-grid, .example-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.doc-card, .example-card { background: var(--white); border: 1px solid var(--line); padding: 28px; min-height: 260px; display: flex; flex-direction: column; transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease; }
.doc-card:hover, .example-card:hover { color: var(--ink); border-color: var(--blue); transform: translateY(-4px); box-shadow: 6px 6px 0 #cbd7f5; }
.doc-card-primary { background: var(--ink); color: var(--mist); border-color: var(--ink); grid-column: span 2; }
.doc-card-primary:hover { color: var(--mist); border-color: var(--blue); }
.card-kicker { color: var(--blue); }
.doc-card-primary .card-kicker { color: #8db0ff; }
.doc-card h2, .example-card h2 { font-size: 1.55rem; margin: 22px 0 10px; }
.doc-card p, .example-card p { color: var(--slate); font-size: .92rem; max-width: 300px; }
.doc-card-primary p { color: #a4acb8; }
.card-arrow { margin-top: auto; color: var(--blue); font-size: .8rem; font-weight: 750; }
.doc-card-primary .card-arrow { color: #9eb9ff; }
.reading-section { background: var(--white); }
.reading-list { max-width: 780px; list-style: none; padding: 0; margin: 0; border-top: 1px solid var(--line); }
.reading-list li { display: grid; grid-template-columns: 70px 1fr; gap: 22px; padding: 23px 0; border-bottom: 1px solid var(--line); }
.reading-list li > span { color: var(--blue); font-family: var(--mono); font-size: .78rem; }
.reading-list strong { display: block; font-size: 1.1rem; margin-bottom: 4px; }
.reading-list p { color: var(--slate); margin: 0; }
.article { width: min(calc(100% - 48px), 820px); margin: 0 auto; padding: 15px 0 100px; }
.article-step, .principle { display: grid; grid-template-columns: 58px 1fr; gap: 25px; padding: 42px 0; border-top: 1px solid var(--line); }
.article-step > span, .principle > span { color: var(--blue); font-family: var(--mono); font-size: .8rem; font-weight: 700; }
.article h2 { font-size: 2rem; margin-bottom: 15px; }
.article p, .article li { color: #404854; font-size: 1rem; }
.article code { color: var(--blue-dark); }
.article .code-block { margin: 22px 0; }
.callout { border-left: 3px solid var(--blue); background: #e8eefc; padding: 18px 20px; margin: 26px 0; }
.callout strong { display: block; margin-bottom: 4px; }
.callout p { margin: 0; font-size: .9rem; }
.article-next { display: flex; flex-wrap: wrap; gap: 18px 28px; align-items: center; border-top: 1px solid var(--line); padding-top: 24px; margin-top: 30px; }
.article-next span { color: var(--slate); font-family: var(--mono); text-transform: uppercase; font-size: .68rem; letter-spacing: .1em; margin-right: auto; }
.article-next a { color: var(--blue); font-weight: 700; font-size: .86rem; }
.philosophy-article .principle h2 { margin-top: -5px; }
.architecture-article > section { padding: 38px 0; border-top: 1px solid var(--line); }
.architecture-article > section h2 { font-size: 1.8rem; }
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: .9rem; }
th, td { border-bottom: 1px solid var(--line); padding: 13px 10px; text-align: left; vertical-align: top; }
th { color: var(--slate); font-family: var(--mono); text-transform: uppercase; letter-spacing: .08em; font-size: .66rem; }
.example-card { min-height: 310px; }
.example-card code { display: inline-block; background: var(--mist); color: var(--ink); padding: 7px 9px; width: fit-content; margin-top: 10px; }
.example-meta { color: var(--slate); display: flex; justify-content: space-between; }
.example-worker { border-top: 4px solid var(--blue); }
.example-cli { border-top: 4px solid var(--ink); }
.example-hybrid { border-top: 4px solid #56836a; }
.fixture-section { background: var(--white); }
.fixture-section .section-heading p:not(.eyebrow) { color: var(--slate); max-width: 650px; }
.fixture-list { display: grid; grid-template-columns: repeat(2, 1fr); border-top: 1px solid var(--line); }
.fixture-list a { padding: 17px 0; border-bottom: 1px solid var(--line); color: var(--blue); font-weight: 700; font-size: .9rem; }
.simulation-section { display: grid; grid-template-columns: 1fr 1fr; gap: 70px; align-items: end; }
.simulation-section p:not(.eyebrow) { color: #a4acb8; max-width: 540px; }
.simulation-section .code-block { background: #151a20; border-color: #303640; }
.simulation-section .code-label { border-color: #303640; color: #7f8997; }
.simulation-section .code-block pre { color: var(--mist); }
.check-list { padding-left: 22px; }
.check-list li { margin-bottom: 10px; }
.space-pair { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin: 25px 0; }
.space-pair > div { border: 1px solid var(--line); padding: 18px; display: flex; flex-direction: column; gap: 10px; }
.public-label { color: var(--blue); }
.private-label { color: #56836a; }
.space-pair p { font-size: .85rem; margin: 0; }
@media (max-width: 900px) {
  .hero-dark { grid-template-columns: 1fr; gap: 44px; padding-top: 80px; }
  .hero-visual { max-width: 600px; width: 100%; }
  .intro-grid, .command-layout, .simulation-section { grid-template-columns: 1fr; gap: 35px; }
  .feature-grid, .docs-grid, .example-grid { grid-template-columns: repeat(2, 1fr); }
  .doc-card-primary { grid-column: span 2; }
  .blue-panel { align-items: start; flex-direction: column; }
}
@media (max-width: 620px) {
  .site-header { width: min(calc(100% - 32px), var(--max)); min-height: 72px; gap: 15px; flex-wrap: wrap; padding: 13px 0; }
  .site-nav { order: 3; width: 100%; justify-content: space-between; gap: 10px; }
  .header-cta { margin-left: auto; padding: 8px 12px; font-size: .78rem; }
  .hero-dark { padding: 65px 20px 70px; min-height: auto; }
  h1 { font-size: clamp(2.9rem, 15vw, 4.5rem); }
  h2 { font-size: 2.25rem; }
  .hero-lede { font-size: 1.05rem; }
  .hero-visual { padding: 16px; box-shadow: 7px 7px 0 #1a1e25; }
  .rail-node { grid-template-columns: 28px 1fr; }
  .rail-node small { grid-column: 2; }
  .section { padding: 75px 20px; }
  .feature-grid, .docs-grid, .example-grid, .fixture-list, .space-pair { grid-template-columns: 1fr; }
  .doc-card-primary { grid-column: auto; }
  .blue-panel { padding: 30px 24px; }
  .site-footer { width: min(calc(100% - 32px), var(--max)); flex-wrap: wrap; padding: 25px 0; gap: 12px 20px; }
  .site-footer p { width: 100%; order: 3; }
  .footer-links { margin-left: 0; }
  .page-hero, .article-hero, .article { width: min(calc(100% - 40px), 820px); }
  .page-hero, .article-hero { padding-top: 60px; }
  .article-step, .principle { grid-template-columns: 35px 1fr; gap: 12px; }
  .article h2 { font-size: 1.7rem; }
}