:root {
  --bg: #07101d;
  --bg-soft: #0c1828;
  --surface: #111f33;
  --surface-strong: #152740;
  --border: #2a3d59;
  --text: #f7f9fc;
  --muted: #afbdd0;
  --accent: #ff4b38;
  --accent-dark: #c83427;
  --accent-soft: #ff8c80;
  --button-primary: #a92f25;
  --button-primary-hover: #84221b;
  --warning: #f2bb67;
  --max: 1180px;
  --shadow: 0 24px 64px rgba(0, 0, 0, .28);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
}
img, svg { display: block; max-width: 100%; }
a { color: var(--accent-soft); }
a:hover { color: #fff; }
.container { width: min(calc(100% - 2rem), var(--max)); margin-inline: auto; }
.skip-link { position: absolute; left: -9999px; top: 0; z-index: 1000; padding: .75rem 1rem; background: #fff; color: #000; }
.skip-link:focus { left: 1rem; top: 1rem; }
#main { scroll-margin-top: 8.5rem; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(7, 16, 29, .97);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(14px);
}
.header-inner { min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 2rem; }
.brand { display: inline-flex; align-items: center; gap: .62rem; flex: 0 0 auto; color: #fff; text-decoration: none; font-size: 1.24rem; font-weight: 850; letter-spacing: -.025em; }
.brand img {
  width: 48px;
  height: auto;
  max-height: 48px;
  object-fit: contain;
  object-position: center;
}
.corporate-nav { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: .25rem; }
.corporate-nav a, .product-nav a {
  padding: .54rem .68rem;
  border-radius: 8px;
  color: var(--muted);
  text-decoration: none;
  font-size: .88rem;
  font-weight: 700;
  white-space: nowrap;
}
.corporate-nav a:hover, .product-nav a:hover {
  color: #fff;
  background: rgba(255, 255, 255, .07);
}
.corporate-nav a[aria-current="page"], .product-nav a[aria-current="page"] {
  color: #fff;
  background: transparent;
  box-shadow: inset 0 -2px 0 var(--accent);
}
.product-nav-wrap { border-top: 1px solid rgba(42, 61, 89, .72); background: #091523; }
.product-nav { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: .35rem; padding-block: .55rem; }
.product-nav a { text-align: center; }

.hero, .page-hero {
  border-bottom: 1px solid var(--border);
  background: radial-gradient(circle at 80% 22%, rgba(255, 75, 56, .15), transparent 31%), linear-gradient(135deg, #07101d 0%, #0b1727 60%, #07101d 100%);
}
.hero-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(320px, 470px); align-items: center; gap: 3.25rem; padding-block: 3.4rem; }
.product-overview-hero { grid-template-columns: minmax(0, 1fr); }
.home-page .hero { display: block; }
.home-page .hero > .container { width: min(calc(100% - 2rem), var(--max)); }
.home-hero-content { padding-block: 4.2rem; }
.home-hero-intro { display: grid; grid-template-columns: minmax(0, 1fr) minmax(300px, 360px); align-items: center; gap: clamp(2rem, 4vw, 4rem); }
.home-hero-intro > * { min-width: 0; }
.home-page .hero-copy { max-width: 760px; }
.home-hero-artwork { width: min(100%, 360px); margin: 0; justify-self: end; }
.home-hero-artwork img { width: 100%; height: auto; aspect-ratio: 1; object-fit: contain; }
.hero-copy { max-width: 690px; }
.hero-brand-art {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 18px;
  background: #0b1119;
  box-shadow: var(--shadow);
}
.hero-brand-art img {
  width: 100%;
  height: auto;
  object-fit: contain;
  object-position: center;
}
.eyebrow, .section-label { margin: 0 0 .75rem; color: var(--accent-soft); font-size: .76rem; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; }
h1 { margin: 0; font-size: clamp(2.65rem, 5.4vw, 5rem); line-height: .98; letter-spacing: -.05em; }
h2 { margin: 0; font-size: clamp(1.9rem, 3.6vw, 3.1rem); line-height: 1.08; letter-spacing: -.035em; }
h3 { margin: 0 0 .5rem; font-size: 1.14rem; line-height: 1.28; }
.lead { max-width: 760px; margin: 1.15rem 0 0; color: var(--muted); font-size: clamp(1.02rem, 2vw, 1.22rem); }
.actions { display: flex; flex-wrap: wrap; gap: .8rem; margin-top: 1.35rem; }
.hero-chips { display: flex; flex-wrap: wrap; gap: .55rem; margin: 1.3rem 0 0; padding: 0; list-style: none; }
.hero-chips li { padding: .38rem .72rem; border: 1px solid var(--border); border-radius: 999px; background: rgba(17, 31, 51, .78); color: #dce4ef; font-size: .82rem; font-weight: 700; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 44px; padding: .68rem 1rem; border-radius: 10px; text-decoration: none; font-weight: 800; }
.button-primary { background: var(--button-primary); color: #fff; }
.button-primary:hover { background: var(--button-primary-hover); color: #fff; }
.button-secondary { border: 1px solid var(--border); background: rgba(17, 31, 51, .78); color: #fff; }

.proof-strip { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: .7rem; margin-top: 2rem; }
.proof-item { min-height: 98px; padding: .85rem; border: 1px solid var(--border); border-radius: 12px; background: rgba(10, 24, 41, .83); }
.proof-item strong { display: block; color: #fff; font-size: .88rem; }
.proof-item span { display: block; margin-top: .22rem; color: var(--muted); font-size: .82rem; line-height: 1.42; }

.section { padding: 3.8rem 0; border-bottom: 1px solid rgba(42, 61, 89, .72); }
.section-alt { background: var(--bg-soft); }
.section-accent { background: linear-gradient(135deg, rgba(255, 75, 56, .08), rgba(12, 24, 40, .96) 44%, rgba(7, 16, 29, .99)); }
.section-heading { max-width: 880px; margin-bottom: 1.9rem; }
.section-heading > p:last-child { color: var(--muted); font-size: 1.03rem; }
.split { display: grid; grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr); gap: 4rem; align-items: start; }
.prose { color: var(--muted); font-size: 1.04rem; }
.prose p:first-child { margin-top: 0; }
.prose strong { color: var(--text); }

.card-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; }
.card-grid-five { grid-template-columns: repeat(6, minmax(0, 1fr)); }
.card-grid-five .card { grid-column: span 2; }
.card-grid-five .card:nth-last-child(-n + 2) { grid-column: span 3; }
.card { min-width: 0; height: 100%; padding: 1.3rem; border: 1px solid var(--border); border-radius: 14px; background: linear-gradient(180deg, rgba(22, 39, 64, .98), rgba(14, 27, 46, .98)); box-shadow: 0 12px 30px rgba(0,0,0,.1); }
.card h3 { text-wrap: balance; }
.card p { margin: 0; color: var(--muted); }
.card-link { display: inline-flex; margin-top: 1rem; font-weight: 800; text-decoration: none; overflow-wrap: anywhere; }
.label-chip { display: inline-flex; margin-bottom: .75rem; padding: .32rem .55rem; border-radius: 999px; background: rgba(255, 75, 56, .16); color: var(--accent-soft); font-size: .72rem; font-weight: 800; }

.evidence-panel { padding: 1.1rem; border: 1px solid rgba(255,255,255,.09); border-radius: 18px; background: linear-gradient(180deg, rgba(19,34,55,.99), rgba(8,18,32,.99)); box-shadow: var(--shadow); }
.evidence-panel > p { margin: 0 0 .8rem; color: #c8d1de; font-size: .75rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.product-boundaries-panel { margin-top: 1.5rem; }
.illustrative-evidence { margin-top: 2rem; overflow: hidden; border: 1px solid var(--border); border-radius: 16px; background: linear-gradient(180deg, rgba(19,34,55,.99), rgba(8,18,32,.99)); box-shadow: var(--shadow); }
.illustrative-evidence .evidence-label { margin: 0; padding: .85rem 1rem; border-bottom: 1px solid var(--border); color: var(--accent-soft); font-size: .76rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.illustrative-evidence dl { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); margin: 0; }
.illustrative-evidence dl div { min-width: 0; padding: 1rem; }
.illustrative-evidence dl div + div { border-left: 1px solid var(--border); }
.illustrative-evidence dt { color: #fff; font-size: .85rem; font-weight: 800; }
.illustrative-evidence dd { margin: .25rem 0 0; color: var(--muted); font-size: .9rem; overflow-wrap: anywhere; }
.illustrative-evidence footer { padding: .7rem 1rem; border-top: 1px solid var(--border); color: #93a0b2; font-size: .78rem; }
.differentiators .section-heading { margin-inline: auto; text-align: center; }
.sbs-attribution { max-width: 900px; margin: 1.5rem auto 0; color: var(--muted); text-align: center; }
.fact-list { display: grid; gap: .6rem; margin: 0; padding: 0; list-style: none; }
.fact-list li { padding: .75rem .85rem; border: 1px solid var(--border); border-radius: 10px; background: #0b1728; }
.fact-list strong { display: block; color: #fff; font-size: .86rem; }
.fact-list span { display: block; margin-top: .1rem; color: var(--muted); font-size: .84rem; }

.actual-shot { margin: 1.2rem 0 0; padding: .9rem; border: 1px solid var(--border); border-radius: 14px; background: #fff; box-shadow: var(--shadow); }
.actual-shot img { width: 100%; }
.actual-shot figcaption { margin-top: .6rem; color: #526176; font-size: .8rem; }

.term-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; }
.term-grid-four { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.term-card { padding: 1.2rem; border: 1px solid var(--border); border-radius: 13px; background: rgba(11, 23, 40, .82); }
.term-card h3 { color: #fff; }
.term-card ul { margin: .6rem 0 0; padding-left: 1.1rem; color: var(--muted); }
.term-card li + li { margin-top: .25rem; }

.stat-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; }
.stat-card { padding: 1.2rem; border: 1px solid var(--border); border-radius: 13px; background: rgba(11, 23, 40, .82); text-align: center; }
.stat-card strong { display: block; font-size: 2.1rem; font-weight: 850; color: #fff; letter-spacing: -.02em; }
.stat-card span { display: block; margin-top: .35rem; color: var(--muted); font-size: .84rem; }

.contact-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; align-items: stretch; }
.contact-card { min-width: 0; padding: 1.5rem; border: 1px solid var(--border); border-radius: 16px; background: linear-gradient(180deg, rgba(23,38,60,.98), rgba(15,27,45,.98)); }
.contact-card h2 { margin: 0 0 1.2rem; font-size: 1.45rem; }
.contact-card dl { display: grid; grid-template-columns: 185px 1fr; gap: .75rem 1.2rem; margin: 0; }
.contact-card dt { color: #fff; font-weight: 800; }
.contact-card dd { margin: 0; color: var(--muted); }
.contact-card .contact-email { font-size: 1.25rem; font-weight: 800; }
.resource-list { display: grid; gap: .85rem; margin: 0; padding: 0; list-style: none; }
.resource-list li { display: grid; gap: .12rem; padding: .8rem .9rem; border: 1px solid var(--border); border-radius: 10px; background: #0b1728; }
.resource-list strong { color: #fff; }

.legal { max-width: 860px; }
.legal h2 { margin-top: 2.2rem; font-size: 1.6rem; }
.legal p, .legal li { color: var(--muted); }
.legal a { word-break: break-word; }
.last-updated { margin: 0 0 1.5rem; }

.diagram-block { display: grid; gap: 1rem; }
.diagram-card { padding: 1.2rem; border: 1px solid var(--border); border-radius: 18px; background: linear-gradient(180deg, #0d1c30, #081421); box-shadow: var(--shadow); }
.diagram-subtitle { margin: 0 0 .8rem; color: var(--accent-soft); font-size: .8rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.arch-svg { width: 100%; height: auto; }
.arch-svg text { font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; }
.diagram-legend { margin: 0; padding: .75rem .9rem; border: 1px solid var(--border); border-radius: 10px; color: var(--muted); font-size: .84rem; }
.diagram-legend strong { color: var(--text); }
.diagram-callouts { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: .75rem; }
.diagram-callout { padding: .85rem; border: 1px solid var(--border); border-radius: 11px; background: rgba(7,16,29,.78); }
.diagram-callout strong { display: block; color: #fff; font-size: .83rem; }
.diagram-callout span { display: block; margin-top: .2rem; color: var(--muted); font-size: .82rem; }
.technical-resource { padding: clamp(1.5rem, 4vw, 2.4rem); }
.technical-resource .section-label { margin-bottom: .75rem; color: var(--accent-soft); }
.technical-resource h2 { max-width: 880px; margin-bottom: 1rem; }

.site-footer { padding: 2.2rem 0; background: #050b14; color: #93a0b2; font-size: .85rem; }
.footer-grid { display: grid; grid-template-columns: 1.3fr .7fr; gap: 3rem; }
.site-footer p { margin: .3rem 0; }
.site-footer strong { color: #fff; }
.footer-links { display: flex; flex-wrap: wrap; gap: .75rem; }
.footer-links a { color: #aebbd0; }

:focus-visible { outline: 3px solid var(--accent-soft); outline-offset: 3px; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

@media (max-width: 1100px) {
  .home-hero-intro { grid-template-columns: minmax(0, 1fr) minmax(280px, 330px); gap: 2rem; }
  .proof-strip { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .card-grid-five { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .card-grid-five .card, .card-grid-five .card:nth-last-child(-n + 2) { grid-column: auto; }
  .differentiators .card-grid-five .card:last-child { grid-column: 1 / -1; }
  .term-grid-four { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 900px) {
  .site-header { position: static; }
  .header-inner { align-items: flex-start; flex-direction: column; gap: .5rem; padding-block: .75rem; }
  .corporate-nav { justify-content: flex-start; }
  .product-nav { display: flex; overflow-x: auto; padding-bottom: .65rem; }
  .product-nav a { flex: 0 0 auto; }
  .hero-grid { grid-template-columns: 1fr; gap: 2.2rem; padding-block: 3rem; }
  .home-page .hero { min-height: auto; }
  .home-hero-content { padding-block: 3.4rem; }
  .home-hero-intro { grid-template-columns: 1fr; gap: 1.75rem; }
  .home-hero-artwork { width: min(34vw, 280px); justify-self: center; }
  .hero-brand-art { max-width: 560px; }
  .split, .footer-grid, .contact-grid { grid-template-columns: 1fr; gap: 1.4rem; }
  .card-grid, .term-grid, .stat-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .diagram-callouts { grid-template-columns: 1fr; }
  .illustrative-evidence dl { grid-template-columns: 1fr; }
  .illustrative-evidence dl div + div { border-top: 1px solid var(--border); border-left: 0; }
}
@media (max-width: 620px) {
  .brand img {
    width: 42px;
    height: auto;
    max-height: 42px;
  }
  .corporate-nav { display: grid; grid-template-columns: 1fr 1fr; width: 100%; }
  .corporate-nav a { min-width: 0; text-align: center; white-space: normal; }
  h1 { font-size: clamp(2.35rem, 12vw, 3.4rem); }
  .proof-strip, .card-grid, .card-grid-five, .term-grid, .stat-grid { grid-template-columns: 1fr; }
  .differentiators .card-grid-five .card:last-child { grid-column: auto; }
  .home-page .hero .actions { flex-direction: column; }
  .home-page .hero .button { width: 100%; }
  .home-hero-artwork { width: min(68vw, 220px); }
  .diagram-card { overflow-x: auto; }
  .arch-svg { min-width: 860px; }
  .section { padding: 3.3rem 0; }
  .contact-card dl { grid-template-columns: 1fr; gap: .2rem; }
  .contact-card dd + dt { margin-top: .8rem; }
}