:root {
  --color-bg-primary: #07111F;
  --color-bg-secondary: #0B1728;
  --color-surface: #101E30;
  --color-surface-elevated: #142438;
  --color-text-primary: #F4F7FA;
  --color-text-secondary: #9AAABC;
  --color-text-muted: #7F90A5;
  --color-accent: #27A8E0;
  --color-accent-hover: #45B9EA;
  --color-accent-subtle: rgba(39, 168, 224, .14);
  --color-success: #38C793;
  --color-warning: #E8B84A;
  --color-error: #E46B72;
  --color-border: #203149;
  --color-border-hover: #2C496B;
  --bg: var(--color-bg-primary);
  --panel: var(--color-surface);
  --panel-2: var(--color-surface-elevated);
  --text: var(--color-text-primary);
  --muted: var(--color-text-secondary);
  --line: var(--color-border);
  --brand: var(--color-accent);
  --brand-2: var(--color-accent-hover);
  --ink: var(--color-text-primary);
  --accent: var(--color-accent);
  --warning: var(--color-warning);
  --danger: var(--color-error);
  --shadow: 0 18px 48px rgba(1, 8, 18, .28);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
}

a { color: inherit; }
button, input, textarea { font: inherit; }
.container { width: min(1160px, calc(100% - 40px)); margin: 0 auto; }
.section-pad { padding: 96px 0; }
.muted-band { background: var(--color-bg-secondary); border-block: 1px solid var(--color-border); }
.skip-link { position: absolute; left: -999px; top: 10px; background: var(--brand); color: #06111F; padding: 10px 14px; z-index: 100; }
.skip-link:focus { left: 10px; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); }

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  background: rgba(7, 17, 31, .92);
  border-bottom: 1px solid var(--color-border);
  backdrop-filter: blur(18px);
}
.nav-shell { min-height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; }
.brand-mark { display: grid; place-items: center; width: 38px; height: 38px; border-radius: 10px; background: var(--brand); color: #06111F; font-weight: 900; }
.brand strong, .brand small { display: block; }
.brand small { color: var(--muted); font-size: 12px; margin-top: -2px; }
.site-nav { display: flex; align-items: center; gap: 22px; color: #c4d6d2; font-size: 14px; }
.site-nav a { text-decoration: none; }
.site-nav a:hover { color: var(--brand-2); }
.nav-cta { border: 1px solid rgba(39, 168, 224, .42); border-radius: 999px; padding: 9px 14px; color: var(--brand-2); }
.nav-toggle { display: none; width: 42px; height: 42px; border: 1px solid var(--line); border-radius: 10px; background: transparent; color: var(--text); }
.nav-toggle span:not(.sr-only) { display: block; width: 18px; height: 2px; background: currentColor; margin: 4px auto; }

.hero { min-height: calc(100vh - 72px); display: grid; align-items: center; overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(360px, .95fr); gap: 70px; align-items: center; }
.eyebrow { margin: 0 0 14px; color: var(--brand-2); text-transform: uppercase; letter-spacing: .12em; font-size: 12px; font-weight: 800; }
h1, h2, h3, p { overflow-wrap: anywhere; }
h1 {
  margin: 0;
  font-size: clamp(40px, 5.2vw, 64px);
  line-height: 1.04;
  letter-spacing: 0;
  max-width: 820px;
  overflow-wrap: normal;
}
h2 { margin: 0; font-size: clamp(30px, 4vw, 48px); line-height: 1.05; letter-spacing: 0; }
h3 { margin: 0; font-size: 19px; line-height: 1.2; }
.hero-lead { margin: 26px 0 0; color: #D4DDE7; font-size: clamp(18px, 2vw, 22px); max-width: 760px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 34px; }
.text-link { display: inline-flex; align-items: center; gap: 7px; color: var(--ink); font-size: .9rem; font-weight: 800; text-decoration: none; }
.text-link span { color: var(--accent); transition: transform .2s ease; }
.text-link:hover span { transform: translateX(3px); }
.card-link { display: inline-flex; gap: 7px; margin-top: 18px; color: var(--brand-2); font-size: 14px; font-weight: 800; text-decoration: none; }
.principle-band { background: #142438; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.principle-grid, .final-cta-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.principle-lead { margin: 0 0 12px; color: var(--brand-2); font-size: 24px; font-weight: 800; }
.principle-examples { color: #D4DDE7; font-size: 15px; line-height: 1.7; }
.final-cta { background: var(--brand); color: #06111F; }
.final-cta .eyebrow { color: #0d4736; }
.final-cta h2 { max-width: 650px; }
.final-cta p:not(.eyebrow) { max-width: 620px; }
.final-cta .btn-primary { background: #06111F; color: #d5fff0; }
select { width: 100%; min-height: 48px; padding: 0 14px; border: 1px solid var(--line); border-radius: 10px; background: #101E30; color: var(--ink); font: inherit; }
.service-page { padding-top: 100px; }
.breadcrumbs { display: flex; flex-wrap: wrap; gap: 9px; margin-bottom: 34px; color: var(--color-text-muted); font-size: 13px; }
.breadcrumbs a { color: var(--color-text-secondary); text-decoration: none; }
.breadcrumbs a:hover { color: var(--color-accent-hover); }
.service-hero { max-width: 850px; }
.service-hero h1 { margin-bottom: 22px; }
.service-layout { display: grid; grid-template-columns: 1.25fr .75fr; gap: 56px; }
.service-panel { padding: 28px; border: 1px solid var(--line); border-radius: 14px; background: var(--panel); }
.service-panel h2 { font-size: 28px; margin-bottom: 16px; }
.service-panel ul { margin: 0; padding-left: 20px; color: #D4DDE7; line-height: 1.9; }
.service-panel p { color: #D4DDE7; }
.faq-list { display: grid; gap: 12px; }
.faq-list details { padding: 18px 20px; border: 1px solid var(--line); border-radius: 10px; background: rgba(255,255,255,.025); }
.faq-list summary { cursor: pointer; font-weight: 800; }
.faq-list p { margin: 12px 0 0; }
.service-footer { margin-top: 54px; padding-top: 28px; border-top: 1px solid var(--line); }
.btn { display: inline-flex; justify-content: center; align-items: center; min-height: 48px; padding: 0 20px; border-radius: 10px; border: 1px solid transparent; text-decoration: none; font-weight: 800; cursor: pointer; }
.btn-primary { background: var(--brand); color: #06111F; }
.btn-primary:hover { background: #62e8b2; }
.btn-secondary { border-color: var(--line); color: #d7e5e1; background: rgba(255,255,255,.03); }
.btn-secondary:hover { border-color: var(--brand-2); color: var(--brand-2); }
.trust-strip { margin-top: 30px; display: flex; flex-wrap: wrap; gap: 10px; color: #b6cbc6; font-size: 13px; }
.trust-strip span { border: 1px solid rgba(255,255,255,.1); padding: 7px 10px; border-radius: 999px; background: rgba(255,255,255,.035); }

.architecture-card {
  position: relative;
  padding: 28px;
  border: 1px solid rgba(69, 185, 234,.2);
  border-radius: 18px;
  background:
    linear-gradient(135deg, rgba(39, 168, 224,.11), transparent 38%),
    radial-gradient(circle at 80% 12%, rgba(69, 185, 234,.16), transparent 35%),
    var(--panel);
  box-shadow: var(--shadow);
}
.architecture-card::before {
  content: "";
  position: absolute;
  inset: 18px;
  border-radius: 14px;
  background-image: linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px);
  background-size: 36px 36px;
  mask-image: linear-gradient(to bottom, black, transparent);
  pointer-events: none;
}
.node-row { position: relative; display: grid; grid-template-columns: 1fr 58px 1fr; align-items: center; gap: 12px; margin-bottom: 18px; }
.node { position: relative; z-index: 1; min-height: 58px; display: grid; place-items: center; border: 1px solid var(--color-border); border-radius: 12px; background: var(--color-bg-primary); color: var(--color-text-primary); font-weight: 800; font-size: 14px; }
.node.active { border-color: rgba(39, 168, 224,.65); color: var(--brand-2); box-shadow: 0 0 0 4px rgba(39, 168, 224,.08); }
.line { height: 2px; background: linear-gradient(90deg, transparent, var(--brand-2), transparent); opacity: .7; }
.terminal-panel { position: relative; z-index: 1; margin-top: 24px; padding: 18px; border: 1px solid rgba(255,255,255,.11); border-radius: 14px; background: rgba(3,9,11,.86); color: #D4DDE7; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 13px; }
.terminal-panel p { margin: 8px 0 0; }
.terminal-panel span { color: var(--color-success); }
.terminal-dots { display: flex; gap: 6px; margin-bottom: 12px; }
.terminal-dots i { width: 9px; height: 9px; border-radius: 50%; background: #355158; }

.section-heading { max-width: 780px; margin-bottom: 38px; }
.section-heading p:not(.eyebrow) { color: var(--muted); font-size: 18px; margin: 16px 0 0; }
.compact { margin-bottom: 0; }
.problem-grid, .services-grid, .starter-grid, .case-grid, .model-grid { display: grid; gap: 16px; }
.problem-grid { grid-template-columns: repeat(4, 1fr); }
.problem, .service-card, .starter, .case-card, .model, .why, .about-card {
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  border-radius: 14px;
}
.problem { padding: 18px; color: #d2e1dd; min-height: 126px; display: flex; align-items: flex-end; font-weight: 700; }
.services-grid { grid-template-columns: repeat(4, 1fr); }
.service-card { padding: 22px; min-height: 248px; }
.service-card span { color: var(--brand-2); font-size: 13px; font-weight: 900; }
.service-card h3 { margin-top: 34px; }
.service-card p, .starter p, .case-card p, .model p, .why p, .about-card p { color: var(--muted); margin: 12px 0 0; }
.service-card.featured { grid-column: span 2; background: linear-gradient(135deg, rgba(39, 168, 224,.14), rgba(255,255,255,.035)); }

.range-grid, .tech-grid, .why-grid, .contact-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 54px; align-items: start; }
.capability-path { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; counter-reset: step; }
.capability-path li { counter-increment: step; position: relative; padding: 16px 16px 16px 48px; border-radius: 12px; border: 1px solid var(--color-border); background: var(--color-surface); font-weight: 800; }
.capability-path li::before { content: counter(step); position: absolute; left: 14px; top: 14px; width: 24px; height: 24px; display: grid; place-items: center; border-radius: 50%; background: rgba(39, 168, 224,.14); color: var(--brand-2); font-size: 12px; }
.starter-grid { grid-template-columns: repeat(3, 1fr); }
.starter, .model, .why { padding: 20px; }
.case-grid { grid-template-columns: repeat(2, 1fr); }
.case-card { padding: 24px; }
.case-card strong { color: #e8f5f1; }
.tech-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.tech-list span { display: block; border: 1px solid var(--color-border); background: var(--color-surface); border-radius: 12px; padding: 14px; color: var(--color-text-secondary); font-weight: 750; }
.model-grid { grid-template-columns: repeat(4, 1fr); }
.why-list { display: grid; gap: 12px; }

.contact-band { background: linear-gradient(135deg, #102127, #07111F); border-block: 1px solid rgba(69, 185, 234,.15); }
.contact-copy p:not(.eyebrow) { color: #c5d8d3; font-size: 20px; }
.mail-link { display: inline-block; margin-top: 20px; color: var(--brand-2); font-weight: 900; }
.contact-form { padding: 24px; border: 1px solid rgba(69, 185, 234,.22); border-radius: 16px; background: rgba(5,13,15,.74); box-shadow: var(--shadow); }
.form-row { margin-bottom: 14px; }
.form-row label { display: block; color: #dbe8e4; font-size: 13px; font-weight: 800; margin-bottom: 7px; }
.form-row em { color: var(--muted); font-style: normal; font-weight: 500; }
.form-row input, .form-row textarea { width: 100%; border: 1px solid rgba(255,255,255,.13); border-radius: 10px; background: #07111F; color: var(--text); padding: 12px; outline: none; }
.form-row input:focus, .form-row textarea:focus, select:focus, .legal-check input:focus-visible, .btn:focus-visible, .site-nav a:focus-visible, .nav-toggle:focus-visible { outline: 3px solid rgba(69, 185, 234,.6); outline-offset: 2px; }
.two-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.legal-check { display: flex; gap: 10px; align-items: flex-start; color: var(--muted); font-size: 13px; margin: 8px 0 18px; }
.legal-check a { color: var(--brand-2); }
.form-submit { width: 100%; }
.form-status { min-height: 22px; margin: 12px 0 0; color: var(--muted); font-size: 13px; }
.form-status.ok { color: var(--color-success); }
.form-status.error { color: var(--danger); }
.honeypot { position: absolute; left: -9999px; opacity: 0; }
.about-section { padding-top: 64px; }
.about-card { padding: 34px; max-width: 940px; }
.site-footer { border-top: 1px solid rgba(255,255,255,.08); padding: 24px 0; color: var(--muted); }
.footer-grid { display: flex; justify-content: space-between; gap: 18px; align-items: center; font-size: 13px; }
.footer-grid p { margin: 0; }
.footer-grid nav { display: flex; gap: 18px; }
.footer-grid a { color: #c9dbd7; text-decoration: none; }

.reveal { opacity: 0; transform: translateY(18px); transition: opacity .55s ease, transform .55s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

@media (max-width: 1024px) {
  .hero-grid, .range-grid, .tech-grid, .why-grid, .contact-grid { grid-template-columns: 1fr; }
  .problem-grid, .services-grid { grid-template-columns: repeat(2, 1fr); }
  .model-grid { grid-template-columns: repeat(2, 1fr); }
  .principle-grid, .final-cta-inner, .service-layout { grid-template-columns: 1fr; }
}

@media (max-width: 760px) {
  .container { width: min(100% - 28px, 1160px); }
  .section-pad { padding: 70px 0; }
  .nav-toggle { display: block; }
  .site-nav { position: absolute; left: 14px; right: 14px; top: 72px; display: none; flex-direction: column; align-items: stretch; gap: 0; padding: 10px; border: 1px solid var(--line); border-radius: 14px; background: #0B1728; box-shadow: var(--shadow); }
  .site-nav.open { display: flex; }
  .site-nav a { padding: 13px 12px; border-radius: 9px; }
  .site-nav a:hover { background: rgba(255,255,255,.04); }
  .hero { min-height: auto; }
  h1 { font-size: clamp(36px, 11vw, 46px); }
  .architecture-card { padding: 18px; }
  .node-row { grid-template-columns: 1fr; }
  .line { width: 2px; height: 24px; justify-self: center; }
  .problem-grid, .services-grid, .starter-grid, .case-grid, .model-grid, .tech-list, .capability-path, .two-cols { grid-template-columns: 1fr; }
  .service-card.featured { grid-column: auto; }
  .service-card { min-height: auto; }
  .text-link { justify-content: center; padding: 5px; }
  .footer-grid { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 360px) {
  .container { width: min(100% - 22px, 1160px); }
  .brand small { display: none; }
  .btn { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
}