:root {
  color-scheme: dark;
  --bg: #0b1420;
  --panel: #111e2d;
  --text: #edf5f6;
  --muted: #98abb6;
  --accent: #59d5c5;
  --blue: #a9c7ff;
  --line: rgba(237, 245, 246, .12);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-width: 320px;
  background: radial-gradient(circle at 82% 12%, rgba(89, 213, 197, .08), transparent 29rem), var(--bg);
  color: var(--text);
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
a:focus-visible { outline: 2px solid var(--accent); outline-offset: 5px; }
.wrap { width: min(1160px, calc(100% - 64px)); margin-inline: auto; }
.header { min-height: 105px; display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid var(--line); }
.brand { display: inline-flex; align-items: center; gap: 13px; }
.brand-icon { width: 44px; height: 44px; display: grid; place-items: center; background: var(--accent); color: #09221f; font-size: 15px; font-weight: 800; letter-spacing: -.04em; }
.brand strong { display: block; font-size: 14px; letter-spacing: .12em; }
.brand small { display: block; margin-top: 5px; color: var(--muted); font-size: 8px; letter-spacing: .23em; }
.nav { display: flex; gap: 32px; color: var(--muted); font-size: 12px; }
.nav a:hover { color: var(--accent); }
.hero { min-height: 625px; display: grid; grid-template-columns: 1.15fr .85fr; align-items: center; gap: 80px; padding-block: 75px; }
.eyebrow { display: flex; align-items: center; gap: 11px; margin: 0 0 23px; color: var(--accent); font-size: 10px; font-weight: 650; letter-spacing: .14em; }
.eyebrow > span:empty { width: 28px; height: 1px; background: var(--accent); }
h1 { margin: 0; font-size: clamp(46px, 5.4vw, 73px); font-weight: 480; line-height: 1.06; letter-spacing: -.05em; }
h1 em { color: var(--blue); font-style: normal; font-weight: 350; }
.lead { max-width: 560px; margin: 29px 0 0; color: var(--muted); font-size: 16px; line-height: 1.75; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 35px; }
.button { min-height: 50px; display: inline-flex; align-items: center; justify-content: center; gap: 20px; padding: 0 21px; border: 1px solid var(--line); font-size: 12px; font-weight: 650; transition: border-color .2s ease, background .2s ease; }
.button.primary { border-color: var(--accent); background: var(--accent); color: #09221f; }
.button.primary:hover { background: #83e5d9; }
.button.secondary { color: var(--muted); }
.button.secondary:hover { border-color: var(--accent); color: var(--text); }
.system-card { position: relative; min-height: 415px; padding: 27px; overflow: hidden; border: 1px solid rgba(89, 213, 197, .28); background: linear-gradient(155deg, rgba(169, 199, 255, .05), transparent 55%), var(--panel); }
.system-card::after { content: ""; position: absolute; right: -90px; top: 65px; width: 290px; height: 290px; border: 1px solid rgba(89, 213, 197, .12); border-radius: 50%; box-shadow: 0 0 0 45px rgba(89, 213, 197, .025), 0 0 0 90px rgba(89, 213, 197, .018); }
.system-top { position: relative; z-index: 1; display: flex; justify-content: space-between; color: var(--muted); font-size: 8px; letter-spacing: .17em; }
.online { color: var(--accent); }
.online i { display: inline-block; width: 5px; height: 5px; margin-right: 6px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 10px var(--accent); }
.system-code { position: relative; z-index: 1; margin-top: 53px; font-size: clamp(65px, 7.5vw, 94px); font-weight: 750; line-height: 1; letter-spacing: -.08em; }
.system-code span { color: var(--accent); }
.system-name { position: relative; z-index: 1; margin: 13px 0 0; color: var(--blue); font-size: 9px; line-height: 1.7; letter-spacing: .16em; }
.system-grid { position: absolute; z-index: 1; left: 27px; bottom: 77px; display: grid; gap: 7px; color: var(--muted); font-size: 8px; letter-spacing: .14em; }
.secure-label { position: absolute; z-index: 1; right: 27px; bottom: 25px; color: var(--accent); font-size: 31px; font-weight: 750; letter-spacing: -.05em; text-align: right; }
.secure-label span { display: block; margin-top: 4px; color: var(--muted); font-size: 7px; font-weight: 500; letter-spacing: .16em; }
.features { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); }
.features article { padding: 36px 34px 40px 0; }
.features article + article { padding-left: 34px; border-left: 1px solid var(--line); }
.feature-number { color: var(--accent); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 11px; }
.features h2 { margin: 15px 0 11px; font-size: 19px; font-weight: 550; }
.features p { max-width: 285px; margin: 0; color: var(--muted); font-size: 13px; line-height: 1.75; }
.infra { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 37px; margin-bottom: 55px; padding: 37px; border: 1px solid var(--line); background: rgba(17, 30, 45, .58); }
.infra-badge { width: 85px; height: 85px; display: grid; place-content: center; border: 1px solid var(--accent); color: var(--accent); font-size: 30px; font-weight: 750; text-align: center; }
.infra-badge span { display: block; color: var(--muted); font-size: 11px; font-weight: 500; }
.infra .eyebrow { margin-bottom: 10px; }
.infra h2 { margin: 0; font-size: 25px; font-weight: 500; line-height: 1.25; letter-spacing: -.025em; }
.infra p:last-child { max-width: 540px; margin: 12px 0 0; color: var(--muted); font-size: 12px; line-height: 1.7; }
.infra-tags { display: grid; gap: 9px; }
.infra-tags span { padding: 8px 10px; border: 1px solid var(--line); color: var(--muted); font-size: 7px; letter-spacing: .12em; }
.footer { display: flex; justify-content: space-between; padding-block: 24px; border-top: 1px solid var(--line); color: var(--muted); font-size: 10px; }
.footer a:hover { color: var(--accent); }
.error-page { min-height: 100vh; display: grid; place-items: center; text-align: center; }
.error-page main { padding: 40px 20px; }
.error-page h1 { margin-top: 55px; color: var(--accent); font-size: clamp(70px, 14vw, 130px); }
.error-page p { margin: 25px 0 35px; color: var(--muted); }
@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; gap: 50px; }
  .system-card { width: min(100%, 490px); }
  .infra { grid-template-columns: auto 1fr; }
  .infra-tags { grid-column: 1 / -1; display: flex; flex-wrap: wrap; }
}
@media (max-width: 600px) {
  .wrap { width: calc(100% - 38px); }
  .header { min-height: 88px; }
  .nav { gap: 0; font-size: 10px; }
  .nav a:first-child { display: none; }
  .brand strong { font-size: 12px; }
  .hero { min-height: 0; padding-block: 52px 58px; }
  h1 { font-size: clamp(43px, 12.8vw, 60px); }
  .lead { font-size: 15px; }
  .actions { flex-direction: column; align-items: stretch; }
  .system-card { min-height: 380px; padding: 23px; }
  .system-code { margin-top: 48px; font-size: 76px; }
  .system-grid { left: 23px; }
  .secure-label { right: 23px; }
  .features { grid-template-columns: 1fr; }
  .features article { padding: 27px 0; }
  .features article + article { padding-left: 0; border-top: 1px solid var(--line); border-left: 0; }
  .features p { max-width: none; }
  .infra { grid-template-columns: 1fr; gap: 25px; padding: 26px; }
  .infra-badge { width: 65px; height: 65px; font-size: 24px; }
  .infra-tags { grid-column: auto; }
  .footer { flex-direction: column; gap: 13px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}