:root {
  --ink: #0d1120;
  --panel: #141a2c;
  --panel-2: #1b2237;
  --cyan: #4de4e7;
  --violet: #8d6cff;
  --gold: #ffc766;
  --offwhite: #f3f4ee;
  --paper: #e8ebe5;
  --muted: #9198a8;
  --line: rgba(243, 244, 238, .15);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--offwhite); font-family: "Segoe UI", Arial, sans-serif; line-height: 1.55; overflow-x: hidden; }
a { color: inherit; }
button, input, select { font: inherit; }
:focus-visible { outline: 3px solid var(--cyan); outline-offset: 4px; }
.skip-link { position: fixed; z-index: 100; top: -5rem; left: 1rem; padding: .75rem 1rem; color: var(--ink); background: var(--cyan); }
.skip-link:focus { top: 1rem; }

.docs-header { min-height: 78px; padding: 0 clamp(1.25rem, 4vw, 4rem); display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; border-bottom: 1px solid var(--line); color: var(--offwhite); background: var(--ink); }
.brand { display: inline-flex; align-items: center; gap: .65rem; width: max-content; font-weight: 800; letter-spacing: -.035em; text-decoration: none; }
.brand > span { position: relative; width: 1.8rem; height: 1.8rem; display: block; border: 2px solid var(--cyan); border-radius: .4rem; transform: rotate(45deg); }
.brand > span::before { content: ""; position: absolute; inset: .3rem; border: 2px solid var(--violet); border-radius: .2rem; }
.brand > span i { position: absolute; left: 50%; top: -.35rem; bottom: -.35rem; border-left: 2px solid var(--gold); }
.docs-header nav { display: flex; gap: 2rem; }
.docs-header nav a { padding: 1.8rem 0; border-bottom: 2px solid transparent; color: var(--muted); font: .68rem Consolas, monospace; text-decoration: none; text-transform: uppercase; }
.docs-header nav a:hover, .docs-header nav a.active { border-color: var(--cyan); color: var(--offwhite); }
.header-cta { justify-self: end; font-size: .72rem; font-weight: 800; text-decoration: none; }
.header-cta span { color: var(--cyan); }
.menu-button { display: none; }

.developer-hero { min-height: 820px; display: grid; grid-template-columns: 1fr 1fr; color: var(--offwhite); background: var(--ink); }
.hero-narrative { min-width: 0; padding: 1.5rem clamp(1.25rem, 5vw, 6rem) 3rem; display: flex; flex-direction: column; border-right: 1px solid var(--line); }
.version-line { margin: 0; padding-bottom: 1rem; display: flex; justify-content: space-between; color: var(--muted); font: .6rem Consolas, monospace; text-transform: uppercase; }
.version-line strong { color: var(--cyan); }
.hero-copy { margin: auto 0; }
.eyebrow, .section-code { margin: 0 0 1.2rem; color: var(--violet); font: 700 .62rem Consolas, monospace; text-transform: uppercase; letter-spacing: .12em; }
.eyebrow span { margin-right: .6rem; color: var(--cyan); }
.hero-copy h1 { max-width: 780px; margin: 0; font-size: clamp(4rem, 7.3vw, 8rem); line-height: .88; letter-spacing: -.075em; }
.hero-copy h1 em { color: var(--cyan); font-style: normal; }
.hero-copy > p:not(.eyebrow) { max-width: 650px; color: #b4b8c2; }
.hero-actions { margin-top: 2rem; display: flex; align-items: center; gap: 1.4rem; flex-wrap: wrap; }
.hero-actions a { font-size: .75rem; font-weight: 800; text-decoration: none; }
.primary-button { padding: .85rem 1rem; color: var(--ink); background: var(--cyan); }
.trust-footer { padding-top: 1rem; display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; border-top: 1px solid var(--line); color: var(--muted); font: .6rem/1.6 Consolas, monospace; }
.trust-footer p { margin: 0; }
.trust-footer span { display: block; color: var(--gold); text-transform: uppercase; }
.hero-console { min-width: 0; padding: clamp(1.25rem, 4vw, 4rem); display: flex; flex-direction: column; justify-content: center; background: radial-gradient(circle at 80% 20%, rgba(141,108,255,.12), transparent 30%), var(--panel); }
.console-tabs { min-height: 55px; display: flex; align-items: center; border: 1px solid var(--line); border-bottom: 0; background: var(--panel-2); }
.console-tabs button { align-self: stretch; padding: 0 1rem; border: 0; border-right: 1px solid var(--line); color: var(--muted); background: transparent; font: .62rem Consolas, monospace; cursor: pointer; }
.console-tabs button[aria-selected="true"] { color: var(--cyan); background: rgba(77,228,231,.07); }
.console-tabs span { margin-left: auto; padding: 0 1rem; color: var(--gold); font: .6rem Consolas, monospace; }
.code-panel { min-height: 390px; margin: 0; padding: 2rem; overflow: auto; border: 1px solid var(--line); color: var(--offwhite); background: #0b0f1b; font: clamp(.72rem, 1.3vw, .92rem)/1.9 "SFMono-Regular", Consolas, monospace; }
.code-dim { color: #4e5567; }.code-violet { color: var(--violet); }.code-gold { color: var(--gold); }.code-cyan { color: var(--cyan); }
.console-status { min-height: 48px; padding: 0 1rem; display: flex; justify-content: space-between; align-items: center; border: 1px solid var(--line); border-top: 0; color: var(--muted); font: .6rem Consolas, monospace; }
.console-status i { display: inline-block; width: .55rem; height: .55rem; margin-right: .35rem; background: var(--cyan); border-radius: 50%; }
.console-status strong { color: var(--cyan); }
.run-button { min-height: 52px; margin-top: 1rem; padding: .8rem 1rem; display: flex; justify-content: space-between; border: 1px solid var(--cyan); color: var(--cyan); background: transparent; font-weight: 800; cursor: pointer; }
.hero-console > p:last-child { min-height: 1.4rem; margin: .7rem 0 0; color: var(--muted); font: .65rem Consolas, monospace; }

.lifecycle-section { display: grid; grid-template-columns: 190px 1fr; background: var(--offwhite); }
.endpoint-rail { padding: 7rem 1.5rem; display: flex; flex-direction: column; border-right: 1px solid rgba(13,17,32,.15); }
.endpoint-rail p { margin: 0 0 2rem; color: #737781; font: .6rem Consolas, monospace; text-transform: uppercase; }
.endpoint-rail a { padding: .8rem 0; border-bottom: 1px solid rgba(13,17,32,.12); color: #747780; font: .66rem Consolas, monospace; text-decoration: none; }
.endpoint-rail a.active { color: var(--ink); font-weight: 800; }
.lifecycle-content { min-width: 0; padding: 8rem clamp(1.25rem, 6vw, 7rem); }
.lifecycle-title { max-width: 900px; }
.lifecycle-title h2, .architecture-heading h2, .use-case-title h2, .contact-section h2 { margin: 0; font-size: clamp(3.4rem, 6.5vw, 7rem); line-height: .9; letter-spacing: -.07em; }
.lifecycle-title > p:last-child { max-width: 670px; color: #676b73; }
.state-machine { margin-top: 4rem; border: 1px solid rgba(13,17,32,.17); background: white; }
.state-summary { display: grid; grid-template-columns: repeat(4, 1fr); border-bottom: 1px solid rgba(13,17,32,.15); }
.state-summary div { padding: 1rem; border-right: 1px solid rgba(13,17,32,.15); }
.state-summary div:last-child { border-right: 0; background: var(--cyan); }
.state-summary span { display: block; color: #777a82; font: .56rem Consolas, monospace; text-transform: uppercase; }
.state-summary strong { display: block; margin-top: .25rem; font-size: .8rem; }
.state-track { padding: 4rem clamp(1rem, 5vw, 5rem); display: grid; grid-template-columns: auto 1fr auto 1fr auto; align-items: center; }
.state-track > b { height: 2px; background: #d3d5d2; }
.state-node { display: grid; justify-items: center; min-width: 100px; color: #8a8d92; text-align: center; }
.state-node i { width: 2.7rem; height: 2.7rem; margin-bottom: .5rem; display: grid; place-items: center; border: 2px solid #c0c2c0; border-radius: 50%; background: var(--offwhite); }
.state-node i::before { content: ""; width: .65rem; height: .65rem; border-radius: 50%; background: #c0c2c0; }
.state-node span { font-size: .76rem; font-weight: 800; }
.state-node small { font: .55rem Consolas, monospace; }
.state-node.active, .state-node.complete { color: var(--ink); }
.state-node.active i { border-color: var(--violet); box-shadow: 0 0 0 .5rem rgba(141,108,255,.1); }.state-node.active i::before { background: var(--violet); }
.state-node.complete i { border-color: var(--cyan); background: var(--cyan); }.state-node.complete i::before { background: var(--ink); }
.state-node.disputed i { border-color: #f16363; box-shadow: 0 0 0 .5rem rgba(241,99,99,.1); }.state-node.disputed i::before { background: #f16363; }
.state-actions { padding: 1rem; display: flex; flex-wrap: wrap; gap: .7rem; border-top: 1px solid rgba(13,17,32,.15); }
.state-actions button { min-height: 44px; padding: .65rem .8rem; border: 1px solid var(--ink); background: transparent; font-size: .68rem; font-weight: 800; cursor: pointer; }
.state-actions button:first-child { color: var(--offwhite); background: var(--ink); }
.state-actions button:nth-child(2) { border-color: #c74f4f; color: #a23737; }
.event-log { border-top: 1px solid rgba(13,17,32,.15); }
.log-head { padding: .8rem 1rem; display: flex; justify-content: space-between; color: #737781; background: var(--paper); font: .58rem Consolas, monospace; text-transform: uppercase; }
.event-log ol { margin: 0; padding: 0; list-style: none; }
.event-log li { padding: 1rem; display: grid; grid-template-columns: .7fr 1.3fr auto; gap: 1rem; border-top: 1px solid rgba(13,17,32,.1); font: .65rem Consolas, monospace; }
.event-log li span { color: var(--violet); }.event-log li strong { font-weight: 400; }.event-log li time { color: #80838a; }

.architecture-section { padding: 8rem max(1.25rem, calc((100vw - 1320px)/2)); color: var(--offwhite); background: var(--ink); }
.architecture-heading { display: grid; grid-template-columns: .6fr 1.4fr; gap: 2rem; align-items: end; }
.architecture-heading .section-code { color: var(--cyan); }
.architecture-diagram { margin-top: 5rem; padding: 3rem 0; display: grid; grid-template-columns: 1fr .5fr 1fr .5fr 1fr; align-items: center; }
.architecture-diagram article { min-height: 210px; padding: 1.5rem; display: flex; flex-direction: column; justify-content: space-between; border: 1px solid var(--line); background: var(--panel); }
.architecture-diagram article span { color: var(--muted); font: .58rem Consolas, monospace; text-transform: uppercase; }
.architecture-diagram article strong { font-size: 1.25rem; }
.arch-core { border-color: var(--cyan) !important; box-shadow: 0 0 0 .6rem rgba(77,228,231,.06); }
.arch-flow { display: grid; color: var(--muted); text-align: center; font: .52rem Consolas, monospace; text-transform: uppercase; }
.arch-flow i { margin: .6rem 0; border-top: 1px dashed var(--violet); }
.architecture-notes { display: grid; grid-template-columns: repeat(3, 1fr); }
.architecture-notes article { padding: 1.5rem; border-top: 1px solid var(--line); border-right: 1px solid var(--line); }
.architecture-notes article:last-child { border-right: 0; }
.architecture-notes span { color: var(--cyan); font: .6rem Consolas, monospace; }
.architecture-notes h3 { font-size: 1rem; }.architecture-notes p { color: var(--muted); font-size: .82rem; }

.use-cases-section { padding: 8rem max(1.25rem, calc((100vw - 1320px)/2)); background: var(--paper); }
.use-case-title { display: grid; grid-template-columns: .6fr 1.4fr; gap: 2rem; align-items: end; }
.use-case-grid { margin-top: 5rem; display: grid; grid-template-columns: repeat(3, 1fr); }
.use-case-grid article { min-height: 430px; padding: 2rem; display: flex; flex-direction: column; border: 1px solid rgba(13,17,32,.16); border-right: 0; background: var(--offwhite); }
.use-case-grid article:last-child { border-right: 1px solid rgba(13,17,32,.16); }
.use-case-grid span { color: var(--violet); font: .6rem Consolas, monospace; text-transform: uppercase; }
.use-case-grid h3 { margin: auto 0 1rem; font-size: 1.65rem; line-height: 1.15; }
.use-case-grid a { color: var(--ink); font-size: .68rem; font-weight: 800; text-decoration: none; }

.contact-section { padding: 8rem max(1.25rem, calc((100vw - 1200px)/2)); display: grid; grid-template-columns: 1fr 1fr; gap: 6vw; color: var(--offwhite); background: var(--violet); }
.contact-section .section-code { color: var(--cyan); }
.contact-section form { display: grid; gap: 1rem; align-content: center; }
.contact-section label { font-size: .62rem; font-weight: 800; text-transform: uppercase; }
.contact-section input, .contact-section select { width: 100%; min-height: 52px; margin-top: .35rem; padding: .75rem; border: 1px solid rgba(255,255,255,.4); color: var(--offwhite); background: rgba(13,17,32,.18); }
.contact-section select option { color: var(--ink); }
.contact-section button { min-height: 52px; border: 0; color: var(--ink); background: var(--cyan); font-weight: 800; cursor: pointer; }
#contact-status { min-height: 1.4rem; margin: 0; color: var(--cyan); font: .7rem Consolas, monospace; }
.site-footer { padding: 4rem max(1.25rem, calc((100vw - 1320px)/2)); display: grid; grid-template-columns: 1fr .8fr 1.2fr auto; gap: 3rem; color: var(--muted); background: var(--ink); font-size: .75rem; }
.site-footer p, .site-footer address { margin: 0; font-style: normal; }
.site-footer > div:nth-child(2) { display: grid; gap: .4rem; }
.site-footer > div:nth-child(2) strong { color: var(--cyan); }.site-footer > div:nth-child(2) a { text-decoration: none; }
.site-footer address strong { color: var(--gold); font-size: .58rem; text-transform: uppercase; }
.site-footer > a { color: var(--cyan); text-decoration: none; }

@media (max-width: 950px) {
  .docs-header { grid-template-columns: 1fr auto; }
  .menu-button { display: block; padding: .55rem; border: 1px solid var(--line); color: var(--offwhite); background: transparent; }
  .docs-header nav { position: absolute; z-index: 20; top: 75px; left: 1rem; right: 1rem; padding: 1rem; display: none; flex-direction: column; background: var(--panel); box-shadow: 0 15px 40px rgba(0,0,0,.4); }
  .docs-header nav.open { display: flex; }
  .docs-header nav a { padding: .6rem; }
  .header-cta { display: none; }
  .developer-hero { grid-template-columns: 1fr; }
  .hero-narrative { min-height: 720px; border-right: 0; }
  .hero-console { min-height: 720px; }
  .lifecycle-section { grid-template-columns: 1fr; }
  .endpoint-rail { padding: 1rem; flex-direction: row; gap: 1rem; overflow-x: auto; border-right: 0; border-bottom: 1px solid rgba(13,17,32,.15); }
  .endpoint-rail p { display: none; }.endpoint-rail a { flex: 0 0 auto; }
  .architecture-heading, .use-case-title, .contact-section { grid-template-columns: 1fr; }
  .architecture-diagram { grid-template-columns: 1fr; gap: 1rem; }
  .arch-flow { grid-template-columns: auto 1fr auto; align-items: center; }
  .arch-flow i { margin: 0 .6rem; }
  .site-footer { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 650px) {
  .hero-copy h1 { font-size: 4.15rem; }
  .trust-footer { grid-template-columns: 1fr; }
  .hero-console { padding: 1rem; min-height: 650px; }
  .console-tabs span { display: none; }
  .code-panel { padding: 1rem; font-size: .66rem; }
  .lifecycle-content, .architecture-section, .use-cases-section, .contact-section, .site-footer { padding-left: 1rem; padding-right: 1rem; }
  .state-summary { grid-template-columns: 1fr 1fr; }
  .state-summary div:nth-child(2) { border-right: 0; }
  .state-summary div:nth-child(-n+2) { border-bottom: 1px solid rgba(13,17,32,.15); }
  .state-track { padding: 3rem .5rem; }
  .state-node { min-width: 70px; }
  .state-node small { display: none; }
  .event-log li { grid-template-columns: 1fr; gap: .25rem; }
  .architecture-notes, .use-case-grid { grid-template-columns: 1fr; }
  .architecture-notes article { border-right: 0; }
  .use-case-grid article { min-height: 330px; border-right: 1px solid rgba(13,17,32,.16); border-bottom: 0; }
  .use-case-grid article:last-child { border-bottom: 1px solid rgba(13,17,32,.16); }
  .site-footer { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}