:root {
  --bg: #0b0d10;
  --surface: #12151a;
  --surface-raised: #181c22;
  --surface-soft: #20252d;
  --text: #f4f5f7;
  --text-secondary: #b7bec8;
  --text-muted: #89929e;
  --accent: #8eb8c7;
  --accent-strong: #b5d9e5;
  --green: #77b89f;
  --orange: #d49a75;
  --line: #2b313a;
  --line-strong: #3a424e;
  --sans: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--text); background: var(--bg); font-family: var(--sans); font-size: 1rem; line-height: 1.65; -webkit-font-smoothing: antialiased; }
a { color: inherit; }
img, svg { display: block; max-inline-size: 100%; }

.skip-link { position: fixed; inset-block-start: .75rem; inset-inline-start: .75rem; z-index: 100; padding: .75rem 1rem; color: var(--bg); background: var(--text); border-radius: .3rem; transform: translateY(-180%); transition: transform 160ms ease; }
.skip-link:focus { transform: translateY(0); }
:focus-visible { outline: 3px solid var(--accent-strong); outline-offset: 4px; }
.shell { inline-size: min(100% - 2rem, 72rem); margin-inline: auto; }

.site-header { position: relative; z-index: 10; border-block-end: 1px solid var(--line); background: rgba(11,13,16,.96); }
.header-layout { display: flex; align-items: center; justify-content: space-between; gap: 1.5rem 2rem; min-block-size: 4.75rem; padding-block: 1rem; }
.brand { display: inline-flex; align-items: center; gap: .7rem; color: var(--text); font-weight: 690; letter-spacing: -.02em; text-decoration: none; }
.brand-mark { display: grid; grid-template-columns: repeat(3,.28rem); align-items: end; gap: .15rem; inline-size: 1.14rem; block-size: 1.14rem; }
.brand-mark span { display: block; border-radius: 2px; background: var(--accent); }
.brand-mark span:nth-child(1) { block-size: 45%; }
.brand-mark span:nth-child(2) { block-size: 100%; }
.brand-mark span:nth-child(3) { block-size: 70%; }
.site-nav { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: .25rem .4rem; }
.site-nav a { padding: .6rem .75rem; border-radius: .3rem; color: var(--text-secondary); font-size: .88rem; font-weight: 620; text-decoration: none; }
.site-nav a:hover, .site-nav a[aria-current="page"] { color: var(--text); background: var(--surface-raised); }

.hero { display: grid; gap: 4rem; align-items: center; padding-block: clamp(4.5rem,10vw,8rem); }
.hero-copy { max-inline-size: 42rem; }
.eyebrow { margin: 0 0 1rem; color: var(--accent); font-size: .72rem; font-weight: 760; letter-spacing: .15em; line-height: 1.3; text-transform: uppercase; }
h1, h2, h3, p { overflow-wrap: break-word; }
h1, h2, h3 { margin-block: 0; font-family: var(--sans); font-weight: 660; letter-spacing: -.035em; line-height: 1.08; }
h1 { max-inline-size: 15ch; font-size: clamp(2.9rem,7vw,5.8rem); }
h2 { font-size: clamp(2rem,4.5vw,3.5rem); }
h3 { font-size: 1.25rem; }
.lede { max-inline-size: 36rem; margin: 1.7rem 0 0; color: var(--text-secondary); font-size: clamp(1.2rem,2.3vw,1.5rem); line-height: 1.5; }
.hero-detail { max-inline-size: 37rem; margin: 1.25rem 0 0; color: var(--text-muted); font-size: 1rem; }
.actions { display: flex; flex-wrap: wrap; gap: .75rem; margin-block-start: 2rem; }
.button { display: inline-flex; min-block-size: 3rem; align-items: center; justify-content: center; gap: .55rem; padding: .78rem 1.1rem; border: 1px solid transparent; border-radius: .35rem; font-size: .9rem; font-weight: 690; line-height: 1.25; text-align: center; text-decoration: none; transition: background 160ms ease,border-color 160ms ease,color 160ms ease; }
.button-primary { color: #091014; background: var(--accent-strong); }
.button-primary:hover { background: #d0e9f1; }
.button-secondary { color: var(--text); border-color: var(--line-strong); background: transparent; }
.button-secondary:hover { border-color: var(--text-muted); background: var(--surface); }

.product-visual { margin: 0; padding: 1rem; border: 1px solid var(--line); border-radius: .55rem; background: var(--surface); }
.visual-header { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: .2rem .2rem 1rem; color: var(--text-muted); font-size: .7rem; font-weight: 680; }
.visual-product { color: var(--text); font-size: .95rem; }
.visual-status { display: flex; align-items: center; gap: .4rem; }
.visual-status span { inline-size: .42rem; block-size: .42rem; border-radius: 50%; background: var(--green); }
.visual-grid { display: grid; gap: .75rem; }
.map-panel, .reader-panel { min-inline-size: 0; padding: 1.2rem; border: 1px solid var(--line); border-radius: .35rem; background: var(--surface-raised); }
.visual-label { margin: 0 0 1rem; color: var(--text-muted); font-size: .62rem; font-weight: 760; letter-spacing: .12em; text-transform: uppercase; }
.map-path { display: flex; align-items: center; margin-block: 1.75rem; }
.map-node { display: grid; flex: 0 0 2rem; inline-size: 2rem; block-size: 2rem; place-items: center; border: 1px solid var(--line-strong); border-radius: 50%; color: var(--text-secondary); background: var(--surface); font-size: .7rem; font-weight: 760; }
.node-complete { color: #07120e; border-color: var(--green); background: var(--green); }
.node-active { color: var(--bg); border: 4px solid #527381; background: var(--accent-strong); }
.map-line { flex: 1; block-size: 1px; background: var(--line-strong); }
.line-complete { background: var(--green); }
.topic-lines, .reader-lines { display: grid; gap: .55rem; }
.topic-lines span, .reader-lines span { display: block; block-size: .35rem; border-radius: 99px; background: var(--line-strong); }
.topic-lines span:nth-child(2), .reader-lines span:nth-child(3) { inline-size: 78%; }
.topic-lines span:nth-child(3), .reader-lines span:nth-child(5) { inline-size: 56%; }
.reader-panel h2 { margin-block-end: 1.25rem; font-size: clamp(1.25rem,3.5vw,1.7rem); letter-spacing: -.025em; }
.reader-note { margin-block-start: 1.35rem; padding: .75rem; border-inline-start: 2px solid var(--orange); color: var(--text-secondary); background: var(--surface); font-size: .7rem; }

.fact-band { border-block: 1px solid var(--line); background: var(--surface); }
.fact-grid { display: grid; gap: 1rem 2rem; padding-block: 1.6rem; }
.fact-grid > div { display: grid; gap: .15rem; }
.fact-label { color: var(--text-muted); font-size: .66rem; font-weight: 740; letter-spacing: .1em; text-transform: uppercase; }
.fact-grid strong, .fact-grid a { color: var(--text); font-size: .98rem; font-weight: 620; text-decoration: none; }
.fact-grid a:hover { color: var(--accent-strong); text-decoration: underline; text-underline-offset: .25em; }

.section { padding-block: clamp(4.5rem,9vw,7.5rem); }
.product-intro { display: grid; gap: 2rem 5rem; }
.section-heading { max-inline-size: 38rem; }
.section-body { max-inline-size: 38rem; }
.large-copy { margin: 0; color: var(--text-secondary); font-size: clamp(1.15rem,2.2vw,1.45rem); line-height: 1.55; }
.text-link { display: inline-flex; align-items: center; gap: .45rem; margin-block-start: 1.5rem; color: var(--accent-strong); font-weight: 680; text-decoration: none; }
.text-link:hover { text-decoration: underline; text-underline-offset: .28em; }
.steps-section { padding-block-start: 1rem; }
.compact-heading { max-inline-size: 47rem; }
.steps-grid { display: grid; gap: 2.5rem; margin: 3.5rem 0 0; padding: 0; list-style: none; }
.steps-grid li { padding-block-start: 1.25rem; border-block-start: 1px solid var(--line-strong); }
.step-number { display: block; margin-block-end: 2rem; color: var(--accent); font-size: .7rem; font-weight: 760; letter-spacing: .1em; }
.steps-grid h3 { margin-block-end: .7rem; }
.steps-grid p { margin: 0; color: var(--text-muted); }
.company-card { display: grid; gap: 3rem 5rem; padding: clamp(2rem,5vw,4rem); border: 1px solid var(--line); border-radius: .55rem; background: var(--surface-raised); }
.company-card h2 { max-inline-size: 14ch; }
.eyebrow-light { color: var(--accent); }
.company-copy { max-inline-size: 35rem; }
.company-copy p { margin: 0 0 1.15rem; color: var(--text-secondary); }
.text-link-light { color: var(--accent-strong); }
.contact-cta { display: grid; gap: 2rem 5rem; align-items: end; }
.contact-cta h2 { max-inline-size: 14ch; }
.cta-copy { max-inline-size: 30rem; }
.cta-copy p { margin: 0 0 1.5rem; color: var(--text-secondary); }

.site-footer { border-block-start: 1px solid var(--line); color: var(--text); background: #080a0d; }
.footer-layout { display: grid; gap: 3rem 5rem; padding-block: 4.25rem; }
.footer-brand { color: var(--text); }
.brand-mark-light span { background: var(--accent); }
.footer-layout > div:first-child > p { max-inline-size: 25rem; margin: 1rem 0 0; color: var(--text-muted); }
.footer-links { display: grid; gap: 2.5rem; }
.footer-links > div { display: grid; align-content: start; gap: .6rem; }
.footer-links span { margin-block-end: .25rem; color: var(--text-muted); font-size: .68rem; font-weight: 740; letter-spacing: .1em; text-transform: uppercase; }
.footer-links a { display: inline-flex; min-block-size: 1.5rem; align-items: center; color: var(--text-secondary); font-size: .86rem; text-decoration: none; }
.footer-links a:hover, .footer-bottom a:hover { color: var(--text); text-decoration: underline; text-underline-offset: .25em; }
.footer-bottom { display: flex; flex-wrap: wrap; justify-content: space-between; gap: .75rem 2rem; padding-block: 1.5rem; border-block-start: 1px solid var(--line); color: var(--text-muted); font-size: .76rem; }
.footer-bottom p { margin: 0; }
.footer-bottom a { color: inherit; text-decoration: none; }

.page-hero { padding-block: clamp(4rem,9vw,7rem); }
.page-hero .eyebrow { margin-block-end: 1.2rem; }
.page-hero h1 { max-inline-size: 18ch; font-size: clamp(2.8rem,6.5vw,5.2rem); }
.page-hero .lede { max-inline-size: 43rem; }
.content-band { border-block: 1px solid var(--line); background: var(--surface); }
.content-grid { display: grid; gap: 3rem 5rem; padding-block: clamp(4rem,8vw,7rem); }
.content-grid h2 { font-size: clamp(1.9rem,4vw,3.1rem); }
.prose { max-inline-size: 43rem; color: var(--text-secondary); }
.prose > :first-child { margin-block-start: 0; }
.prose > :last-child { margin-block-end: 0; }
.prose h2, .prose h3 { color: var(--text); }
.prose h2 { margin-block: 3.5rem 1.25rem; font-size: 1.8rem; }
.prose h3 { margin-block: 2.5rem .75rem; font-size: 1.05rem; letter-spacing: -.01em; }
.prose p, .prose li { font-size: 1rem; }
.prose a { color: var(--accent-strong); font-weight: 660; text-underline-offset: .22em; }
.prose .button-primary { color: #091014; text-decoration: none; }
.prose .button-secondary { color: var(--text); text-decoration: none; }
.prose ul { padding-inline-start: 1.25rem; }
.prose li + li { margin-block-start: .65rem; }
.details-list { display: grid; gap: 0; margin: 0; }
.details-list > div { padding-block: 1.25rem; border-block-start: 1px solid var(--line); }
.details-list dt { color: var(--text-muted); font-size: .68rem; font-weight: 740; letter-spacing: .1em; text-transform: uppercase; }
.details-list dd { margin: .3rem 0 0; color: var(--text); font-size: 1.05rem; font-weight: 620; overflow-wrap: anywhere; }
.details-list a { text-underline-offset: .22em; }
.cards-grid { display: grid; gap: 1rem; margin-block-start: 2.5rem; }
.info-card { padding: 1.5rem; border: 1px solid var(--line); border-radius: .35rem; background: var(--surface-raised); }
.info-card h3 { margin-block-end: .65rem; }
.info-card p { margin: 0; color: var(--text-muted); }
.contact-list { display: grid; gap: 1rem; }
.contact-card { display: grid; gap: .35rem; padding: 1.5rem; border: 1px solid var(--line); border-radius: .35rem; color: var(--text); background: var(--surface-raised); text-decoration: none; }
.contact-card:hover { border-color: var(--line-strong); background: var(--surface-soft); }
.contact-card span { color: var(--text-muted); font-size: .7rem; font-weight: 740; letter-spacing: .1em; text-transform: uppercase; }
.contact-card strong { color: var(--accent-strong); font-size: 1.05rem; font-weight: 650; overflow-wrap: anywhere; }
.contact-card p { margin: .3rem 0 0; color: var(--text-muted); font-size: .9rem; }
.legal-meta { margin-block-start: 1.25rem; color: var(--text-muted); font-size: .9rem; }
.notice { margin-block: 2rem; padding: 1.25rem; border-inline-start: 3px solid var(--orange); background: var(--surface-raised); }
.notice p { margin: 0; }
.error-page { display: grid; min-block-size: calc(100svh - 4.75rem); place-items: center; padding-block: 4rem; text-align: center; }
.error-page h1 { max-inline-size: none; }
.error-page p { max-inline-size: 34rem; margin: 1.25rem auto 0; color: var(--text-secondary); }
.error-page .actions { justify-content: center; }

@media (min-width: 42rem) {
  .shell { inline-size: min(100% - 3rem,72rem); }
  .fact-grid { grid-template-columns: repeat(3,1fr); }
  .visual-grid { grid-template-columns: .8fr 1.2fr; }
  .footer-links { grid-template-columns: repeat(3,minmax(7rem,1fr)); }
  .cards-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
}
@media (min-width: 56rem) {
  .hero { grid-template-columns: minmax(0,1.06fr) minmax(0,.94fr); }
  .product-intro, .contact-cta { grid-template-columns: minmax(0,1fr) minmax(0,.82fr); }
  .steps-grid { grid-template-columns: repeat(3,minmax(0,1fr)); }
  .company-card { grid-template-columns: minmax(0,1fr) minmax(0,.85fr); }
  .footer-layout { grid-template-columns: minmax(0,.85fr) minmax(0,1.15fr); }
  .content-grid { grid-template-columns: minmax(0,.55fr) minmax(0,1fr); }
}
@media (max-width: 36rem) {
  .header-layout { align-items: flex-start; flex-direction: column; }
  .site-nav { inline-size: 100%; justify-content: flex-start; }
  .site-nav a { padding-inline: 0; margin-inline-end: 1.15rem; }
  .actions .button { inline-size: 100%; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; }
}