:root {
  --bg: #06090d;
  --bg-2: #090e14;
  --surface: rgba(13, 20, 29, 0.74);
  --surface-2: rgba(17, 26, 37, 0.74);
  --line: rgba(151, 185, 224, 0.14);
  --line-strong: rgba(120, 171, 234, 0.27);
  --text: #f3f7fb;
  --muted: #98a7b8;
  --muted-2: #6e7f92;
  --accent: #4d91ff;
  --accent-2: #79b8ff;
  --green: #64d6a1;
  --max: 1320px;
  --radius: 18px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-width: 320px;
  color: var(--text);
  background:
    radial-gradient(circle at 73% 10%, rgba(49, 116, 204, 0.12), transparent 29rem),
    radial-gradient(circle at 16% 23%, rgba(33, 83, 145, 0.08), transparent 28rem),
    var(--bg);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255,255,255,.018) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.018) 1px, transparent 1px);
  background-size: 52px 52px;
  mask-image: linear-gradient(to bottom, black, transparent 72%);
  opacity: .38;
  z-index: -2;
}

a { color: inherit; text-decoration: none; }
button, a { -webkit-tap-highlight-color: transparent; }

.ambient { position: fixed; width: 38rem; height: 38rem; border-radius: 50%; filter: blur(120px); pointer-events: none; z-index: -1; opacity: .1; }
.ambient-a { background: #1c6dd9; top: 12%; right: -14rem; }
.ambient-b { background: #0d74b6; bottom: -20rem; left: -17rem; }

.site-header {
  width: min(calc(100% - 48px), var(--max));
  margin: 0 auto;
  height: 88px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(255,255,255,.07);
  position: relative;
  z-index: 20;
}
.brand { display: inline-flex; align-items: center; gap: 12px; }
.brand-mark {
  width: 34px; height: 34px; display: grid; place-items: center;
  border: 1px solid var(--line-strong);
  border-radius: 9px;
  font-size: 13px; font-weight: 700;
  color: var(--accent-2);
  background: linear-gradient(145deg, rgba(77,145,255,.14), rgba(255,255,255,.025));
  box-shadow: inset 0 0 18px rgba(77,145,255,.05);
}
.brand-word { font-size: 18px; font-weight: 650; letter-spacing: .24em; }
.nav { display: flex; align-items: center; gap: 34px; font-size: 14px; color: #aab5c2; }
.nav a { transition: color .2s ease; }
.nav a:hover { color: #fff; }
.nav .nav-cta { color: #f7fbff; padding: 11px 16px; border-radius: 11px; border: 1px solid var(--line-strong); background: rgba(60,122,206,.11); }
.nav-toggle { display:none; background:none; border:0; width:42px; height:42px; padding:0; }
.nav-toggle span { display:block; width:22px; height:1px; background:#dfe9f4; margin:6px auto; }

.section-shell { width: min(calc(100% - 48px), var(--max)); margin-inline: auto; }
.hero { min-height: 735px; display: grid; grid-template-columns: .92fr 1.08fr; gap: 56px; align-items: center; padding: 88px 0 84px; position: relative; }
.hero::after { content:""; position:absolute; left:0; right:0; bottom:0; height:1px; background:linear-gradient(90deg, transparent, rgba(135,174,219,.22), transparent); }
.hero-copy { max-width: 630px; }
.hero h1 { margin:0; font-size: clamp(54px, 5.1vw, 82px); line-height: .99; letter-spacing: -.048em; font-weight: 660; }
.hero h1 span { color: #b9d5f6; }
.hero-lede { margin: 30px 0 0; max-width: 640px; font-size: 20px; line-height: 1.68; color: var(--muted); }
.hero-actions { display:flex; gap:14px; margin-top:34px; flex-wrap:wrap; }
.button { min-height: 48px; display:inline-flex; align-items:center; justify-content:center; gap:11px; padding: 0 20px; border-radius: 12px; font-weight: 600; font-size: 14px; transition: transform .2s ease, border-color .2s ease, background .2s ease; }
.button:hover { transform: translateY(-1px); }
.button.primary { color:#fff; background: linear-gradient(135deg, #2879ff, #4a94ff); box-shadow: 0 11px 36px rgba(33,111,255,.18); }
.button.primary:hover { background: linear-gradient(135deg, #3280ff, #58a0ff); }
.button.secondary { color:#dce6f1; border: 1px solid var(--line-strong); background:rgba(255,255,255,.02); }
.button.large { min-height:58px; padding:0 24px; font-size:16px; }
.hero-note { margin-top:26px; display:flex; align-items:center; gap:9px; color: var(--muted-2); font-size: 13px; }
.status-dot { width:8px; height:8px; border-radius:50%; background:var(--green); box-shadow:0 0 0 4px rgba(100,214,161,.08); }

.hero-system { min-height: 510px; position: relative; display:flex; align-items:center; justify-content:center; }
.system-window { width: 92%; border:1px solid rgba(130,174,228,.24); border-radius:16px; overflow:hidden; background:rgba(4,8,13,.78); box-shadow: 0 40px 100px rgba(0,0,0,.46), inset 0 1px rgba(255,255,255,.04); transform: perspective(1100px) rotateY(-4deg) rotateX(1.5deg); backdrop-filter: blur(18px); }
.window-topbar { height:50px; display:grid; grid-template-columns: 1fr auto 1fr; align-items:center; padding:0 17px; border-bottom:1px solid rgba(255,255,255,.06); color:#6f8194; font-size:12px; }
.window-topbar > :last-child { justify-self:end; }
.window-dots { display:flex; gap:6px; }
.window-dots span { width:7px; height:7px; border-radius:50%; background:#4a617a; }
.system-body { display:grid; grid-template-columns: 135px 1fr; min-height:390px; }
.system-sidebar { border-right:1px solid rgba(255,255,255,.06); padding:16px 13px; }
.side-brand { width:34px; height:34px; display:grid; place-items:center; border-radius:8px; background:rgba(77,145,255,.12); color:var(--accent-2); font-size:11px; font-weight:800; margin-bottom:21px; }
.side-item { height:34px; display:flex; align-items:center; gap:8px; padding:0 9px; border-radius:7px; color:#6e8195; font-size:11px; margin-bottom:5px; }
.side-item i { width:7px; height:7px; border:1px solid currentColor; border-radius:2px; }
.side-item.active { color:#dce8f4; background:rgba(76,137,217,.1); }
.system-content { padding:25px 27px 20px; }
.content-label,.panel-tag,.section-kicker { color:#6f9fd7; font-size:11px; letter-spacing:.22em; font-weight:700; }
.task-card { margin-top:15px; border:1px solid rgba(255,255,255,.07); border-radius:11px; overflow:hidden; }
.task-row { min-height:59px; padding:11px 14px; display:flex; align-items:center; gap:12px; border-bottom:1px solid rgba(255,255,255,.055); background:rgba(255,255,255,.008); }
.task-row:last-child { border-bottom:0; }
.task-row strong { display:block; font-size:12px; font-weight:600; color:#dbe6f1; }
.task-row small { display:block; margin-top:4px; color:#6f8092; font-size:10px; }
.task-row.running { background:linear-gradient(90deg, rgba(47,119,211,.1), rgba(47,119,211,.025)); }
.task-row.muted { opacity:.68; }
.task-check { flex:0 0 24px; width:24px; height:24px; display:grid; place-items:center; border-radius:50%; border:1px solid rgba(117,174,240,.3); color:#8cc0ff; font-size:10px; }
.system-footer-row { display:flex; gap:12px; margin-top:13px; color:#5d7187; font-size:9px; flex-wrap:wrap; }
.mono { font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace; }
.mono.ok { color:#5dad89; }
.floating-card { position:absolute; width:215px; min-height:84px; padding:15px; display:flex; gap:12px; align-items:flex-start; border:1px solid rgba(122,173,231,.2); border-radius:13px; background:rgba(8,14,21,.88); box-shadow:0 20px 50px rgba(0,0,0,.35); backdrop-filter: blur(16px); }
.floating-card strong { font-size:12px; display:block; }
.floating-card small { display:block; margin-top:5px; font-size:10px; line-height:1.45; color:#728398; }
.floating-icon { flex:0 0 28px; height:28px; display:grid; place-items:center; border-radius:8px; background:rgba(72,139,230,.12); color:#83b9ff; font-size:13px; }
.floating-a { left: -8px; bottom: 12px; }
.floating-b { right: -4px; top: 9px; }

.pillars { display:grid; grid-template-columns:repeat(4,1fr); border-bottom:1px solid rgba(255,255,255,.07); padding:44px 0 55px; }
.pillar { padding:0 30px; border-right:1px solid rgba(255,255,255,.07); }
.pillar:first-child { padding-left:0; }
.pillar:last-child { border-right:0; padding-right:0; }
.pillar-icon { width:39px; height:39px; display:grid; place-items:center; border:1px solid var(--line); border-radius:9px; background:rgba(255,255,255,.018); font-size:10px; color:#86b7f1; margin-bottom:20px; font-family:monospace; }
.pillar h2 { margin:0 0 10px; font-size:17px; font-weight:620; }
.pillar p { margin:0; color:var(--muted); line-height:1.62; font-size:14px; }

.architecture { padding: 120px 0 115px; }
.section-heading { max-width:760px; margin-bottom:54px; }
.section-heading.narrow { max-width:680px; }
.section-heading h2,.about h2,.contact h2 { margin:13px 0 0; font-size:clamp(34px,4vw,56px); line-height:1.08; letter-spacing:-.035em; font-weight:620; }
.section-heading > p:last-child { margin:20px 0 0; max-width:680px; color:var(--muted); font-size:18px; line-height:1.7; }
.flow { display:grid; grid-template-columns:1fr 28px 1fr 28px 1fr 28px 1fr 28px 1fr 28px 1fr; align-items:start; margin:0 0 56px; }
.flow-step { min-width:0; }
.flow-step > span { width:34px; height:34px; display:grid; place-items:center; border:1px solid var(--line-strong); border-radius:9px; color:#8dbdff; background:rgba(50,120,210,.08); font-size:11px; font-family:monospace; margin-bottom:17px; }
.flow-step strong { display:block; font-size:14px; font-weight:620; }
.flow-step small { display:block; color:var(--muted-2); margin-top:7px; line-height:1.5; font-size:12px; }
.flow-line { margin-top:17px; height:1px; background:linear-gradient(90deg, rgba(75,137,216,.5), rgba(75,137,216,.08)); }
.architecture-grid { display:grid; grid-template-columns:1.25fr 1fr; grid-template-rows:auto auto; gap:18px; }
.arch-panel { border:1px solid rgba(138,179,226,.14); border-radius:var(--radius); background:linear-gradient(150deg, rgba(15,22,31,.72), rgba(8,13,19,.66)); padding:29px; min-height:280px; position:relative; overflow:hidden; }
.arch-panel::after { content:""; position:absolute; inset:auto -30% -55% auto; width:280px; height:280px; border-radius:50%; background:rgba(39,111,205,.08); filter:blur(35px); }
.arch-large { grid-row:1 / span 2; min-height:578px; }
.arch-panel h3 { position:relative; z-index:1; margin:13px 0 14px; font-size:24px; line-height:1.15; letter-spacing:-.02em; }
.arch-panel p { position:relative; z-index:1; color:var(--muted); line-height:1.65; font-size:14px; margin:0 0 21px; max-width:520px; }
.file-stack { position:relative; z-index:1; margin-top:32px; display:grid; gap:10px; }
.file { display:flex; justify-content:space-between; gap:18px; align-items:center; min-height:62px; padding:0 17px; border:1px solid rgba(255,255,255,.07); border-radius:11px; background:rgba(255,255,255,.015); }
.file span { font-family:monospace; color:#d3e2f1; font-size:13px; }
.file small { color:#708196; font-size:11px; }
.code-line { position:relative; z-index:1; display:flex; justify-content:space-between; gap:18px; min-height:37px; align-items:center; border-bottom:1px solid rgba(255,255,255,.05); font-family:monospace; font-size:11px; }
.code-line span { color:#71849b; }
.code-line b { color:#bcd6f4; font-weight:500; }
.validation-list { position:relative; z-index:1; display:grid; grid-template-columns:1fr 1fr; gap:9px 18px; margin-top:26px; color:#aab8c7; font-size:12px; }
.validation-list i { font-style:normal; color:var(--green); margin-right:8px; }

.principles { padding: 108px 0 96px; border-top:1px solid rgba(255,255,255,.07); }
.principle-list { border-top:1px solid rgba(255,255,255,.08); }
.principle-row { display:grid; grid-template-columns:70px 1.1fr 1.6fr; gap:24px; align-items:center; min-height:112px; border-bottom:1px solid rgba(255,255,255,.07); }
.principle-row > span { font-family:monospace; color:#6c96c5; font-size:11px; }
.principle-row h3 { margin:0; font-size:20px; font-weight:600; }
.principle-row p { margin:0; color:var(--muted); line-height:1.62; font-size:14px; }

.about { display:grid; grid-template-columns:1fr 1fr; gap:80px; align-items:end; padding:94px 0; border-top:1px solid rgba(255,255,255,.07); }
.about h2 { max-width:640px; font-size:clamp(34px,3.7vw,52px); }
.about > p { margin:0; color:var(--muted); line-height:1.75; font-size:17px; }

.contact { padding: 24px 0 105px; }
.contact-inner { min-height:310px; border:1px solid rgba(117,166,224,.18); border-radius:24px; background:
  linear-gradient(115deg, rgba(31,83,147,.16), rgba(8,13,19,.68) 54%, rgba(36,95,170,.11));
  padding:50px; display:flex; align-items:flex-end; justify-content:space-between; gap:30px; position:relative; overflow:hidden; }
.contact-inner::before { content:""; position:absolute; width:360px; height:360px; border:1px solid rgba(92,154,230,.08); border-radius:50%; top:-190px; right:120px; box-shadow:0 0 0 50px rgba(66,129,209,.025),0 0 0 100px rgba(66,129,209,.018); }
.contact h2 { font-size:clamp(34px,4.2vw,58px); }
.contact-inner > * { position:relative; z-index:1; }

.site-footer { min-height:130px; display:grid; grid-template-columns:1fr 1fr 1fr; align-items:center; border-top:1px solid rgba(255,255,255,.07); color:var(--muted-2); font-size:12px; }
.footer-brand { opacity:.88; }
.site-footer > p:nth-child(2) { text-align:center; }
.footer-meta { text-align:right; }

@media (max-width: 1080px) {
  .hero { grid-template-columns:1fr; padding-top:72px; }
  .hero-copy { max-width:760px; }
  .hero-system { min-height:470px; }
  .system-window { width:86%; }
  .pillars { grid-template-columns:1fr 1fr; }
  .pillar { border-right:0; border-bottom:1px solid rgba(255,255,255,.07); padding:26px 26px 30px 0; }
  .pillar:nth-child(even) { padding-left:26px; }
  .pillar:nth-last-child(-n+2) { border-bottom:0; }
  .flow { grid-template-columns:repeat(3,1fr); gap:28px; }
  .flow-line { display:none; }
  .architecture-grid { grid-template-columns:1fr 1fr; }
  .arch-large { grid-row:auto; grid-column:1 / span 2; min-height:auto; }
  .about { gap:40px; }
}

@media (max-width: 760px) {
  .site-header,.section-shell { width:min(calc(100% - 32px), var(--max)); }
  .site-header { height:74px; }
  .brand-word { font-size:15px; }
  .brand-mark { width:30px; height:30px; }
  .nav-toggle { display:block; position:relative; z-index:25; }
  .nav { position:absolute; top:62px; right:0; width:min(290px, calc(100vw - 32px)); padding:16px; display:none; flex-direction:column; align-items:stretch; gap:5px; border:1px solid var(--line); border-radius:14px; background:rgba(8,13,19,.96); backdrop-filter:blur(18px); box-shadow:0 20px 70px rgba(0,0,0,.4); }
  .nav.open { display:flex; }
  .nav a { padding:12px 10px; }
  .nav .nav-cta { margin-top:5px; text-align:center; }
  .hero { min-height:auto; padding:66px 0 62px; gap:46px; }
  .hero h1 { font-size:clamp(46px,13vw,66px); }
  .hero-lede { font-size:17px; line-height:1.62; }
  .hero-system { min-height:405px; }
  .system-window { width:100%; transform:none; }
  .system-body { grid-template-columns:92px 1fr; min-height:340px; }
  .system-sidebar { padding:13px 9px; }
  .side-item { font-size:9px; padding:0 6px; }
  .system-content { padding:18px 14px; }
  .task-row { min-height:52px; padding:9px 10px; }
  .task-row strong { font-size:10px; }
  .task-row small { font-size:8px; }
  .system-footer-row { display:none; }
  .floating-card { width:178px; min-height:72px; padding:11px; }
  .floating-a { left:-5px; bottom:-24px; }
  .floating-b { right:-4px; top:-27px; }
  .floating-card strong { font-size:10px; }
  .floating-card small { font-size:8px; }
  .pillars { grid-template-columns:1fr; padding-top:60px; }
  .pillar,.pillar:nth-child(even) { padding:26px 0; border-bottom:1px solid rgba(255,255,255,.07); }
  .pillar:last-child { border-bottom:0; }
  .architecture { padding:86px 0; }
  .section-heading { margin-bottom:42px; }
  .section-heading > p:last-child { font-size:16px; }
  .flow { grid-template-columns:1fr 1fr; gap:28px 18px; }
  .architecture-grid { grid-template-columns:1fr; }
  .arch-large { grid-column:auto; }
  .arch-panel { padding:23px; }
  .file { align-items:flex-start; flex-direction:column; gap:5px; padding:14px; }
  .validation-list { grid-template-columns:1fr; }
  .principles { padding:84px 0 74px; }
  .principle-row { grid-template-columns:44px 1fr; gap:10px 14px; padding:20px 0; }
  .principle-row p { grid-column:2; }
  .about { grid-template-columns:1fr; gap:28px; padding:74px 0; }
  .contact { padding-bottom:76px; }
  .contact-inner { padding:30px 24px; min-height:330px; flex-direction:column; align-items:flex-start; justify-content:flex-end; }
  .site-footer { grid-template-columns:1fr; gap:17px; padding:34px 0; }
  .site-footer > p:nth-child(2),.footer-meta { text-align:left; margin:0; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior:auto; }
  *,*::before,*::after { transition:none !important; animation:none !important; }
}