:root {
  --black: #050507;
  --panel: #101014;
  --panel-light: #17171e;
  --white: #f8f8fb;
  --muted: #b7b7c3;
  --red: #e33a3a;
  --red-deep: #8f161d;
  --blue: #768bff;
  --blue-deep: #3348b7;
  --line: rgba(255,255,255,.13);
  --max: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--black);
  color: var(--white);
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.55;
}

a { color: inherit; }
.shell { width: min(calc(100% - 40px), var(--max)); margin: 0 auto; }
.skip-link { position: absolute; left: 16px; top: -80px; z-index: 100; padding: 12px 16px; background: #fff; color: #000; }
.skip-link:focus { top: 16px; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(5,5,7,.92);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(14px);
}
.header-inner { min-height: 118px; display: flex; align-items: center; justify-content: space-between; gap: 28px; }
.brand { display: inline-flex; align-items: center; text-decoration: none; }
.brand img { display: block; width: 210px; height: auto; }
nav { display: flex; gap: 30px; }
nav a { color: #dddde7; text-decoration: none; font-size: .94rem; font-weight: 700; }
nav a:hover, nav a:focus-visible { color: #fff; text-decoration: underline; text-underline-offset: 5px; }

.hero { min-height: 650px; display: grid; align-items: center; overflow: hidden; border-bottom: 1px solid var(--line); background: radial-gradient(circle at 78% 45%, rgba(69,87,205,.19), transparent 27%), radial-gradient(circle at 69% 57%, rgba(197,38,43,.17), transparent 32%), #050507; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.16fr) minmax(340px, .84fr); align-items: center; gap: 72px; padding: 90px 0; }
.eyebrow { margin: 0 0 16px; color: #b9c2ff; font-size: .78rem; font-weight: 800; letter-spacing: .19em; text-transform: uppercase; }
h1, h2, h3, p { overflow-wrap: break-word; }
h1 { max-width: 760px; margin: 0; font-size: clamp(3.35rem, 7vw, 6.8rem); line-height: .94; letter-spacing: -.065em; }
.hero-lead { max-width: 680px; margin: 28px 0 34px; color: #d2d2dc; font-size: clamp(1.1rem, 1.8vw, 1.4rem); }
.button { display: inline-block; padding: 14px 21px; border: 1px solid #ff5959; background: linear-gradient(135deg, var(--red), var(--red-deep)); color: #fff; font-weight: 800; text-decoration: none; box-shadow: 0 12px 32px rgba(205,38,43,.2); }
.button:hover, .button:focus-visible { background: #fff; border-color: #fff; color: #111; }

.signal { position: relative; min-height: 420px; }
.signal-ring, .signal-core { position: absolute; left: 50%; top: 50%; border-radius: 50%; transform: translate(-50%,-50%); }
.signal-ring { border: 1px solid rgba(152,164,255,.3); box-shadow: inset 0 0 50px rgba(80,94,210,.07); }
.ring-one { width: 390px; height: 390px; }
.ring-two { width: 270px; height: 270px; border-color: rgba(230,57,57,.38); }
.ring-three { width: 150px; height: 150px; border-color: rgba(170,181,255,.5); }
.signal-core { width: 38px; height: 38px; background: #fff; box-shadow: 0 0 16px #fff, 0 0 42px #788cff, 0 0 95px #c52b32; }
.signal::before, .signal::after { content: ""; position: absolute; left: 50%; top: 50%; transform: translate(-50%,-50%) rotate(-22deg); width: 500px; height: 1px; background: linear-gradient(90deg, transparent, rgba(255,255,255,.48), transparent); }
.signal::after { transform: translate(-50%,-50%) rotate(68deg); }

.section { padding: 110px 0; }
.section-heading { max-width: 750px; margin-bottom: 52px; }
.section-heading.compact { margin-bottom: 42px; }
h2 { margin: 0 0 18px; font-size: clamp(2.25rem, 4.7vw, 4.6rem); line-height: 1; letter-spacing: -.05em; }
.section-heading > p:last-child, .history-copy p { color: #c8c8d1; font-size: 1.08rem; }

.products { background: #0a0a0d; }
.product-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.product-card { display: flex; flex-direction: column; min-height: 355px; padding: 30px; background: var(--panel); border: 1px solid var(--line); }
.product-card.featured { background: linear-gradient(145deg, rgba(49,65,165,.28), rgba(16,16,20,.96) 55%, rgba(148,24,30,.17)); border-color: rgba(119,139,255,.43); }
.card-topline { display: flex; justify-content: space-between; align-items: center; gap: 14px; margin-bottom: 42px; }
.status { display: inline-block; padding: 5px 8px; border: 1px solid rgba(135,151,255,.48); color: #c8d0ff; font-size: .7rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.status.planned { border-color: rgba(255,255,255,.22); color: #c4c4cd; }
.product-number { color: #686875; font-weight: 800; }
.product-card h3 { margin: 0 0 16px; font-size: 1.65rem; }
.product-card p { color: #c3c3cd; }
.product-card .muted { color: #8f8f9c; font-size: .9rem; }
.text-link { margin-top: auto; color: #d4d9ff; font-weight: 800; text-decoration: none; }
.text-link:hover, .text-link:focus-visible { color: #fff; text-decoration: underline; text-underline-offset: 5px; }

.company { background: linear-gradient(90deg, rgba(155,27,33,.15), transparent 42%), #111116; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.company-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 90px; }
.history-copy p:first-child { margin-top: 0; }

.principle-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.principle-grid article { min-height: 235px; padding: 28px; background: var(--black); }
.principle-grid span { color: #858daa; font-size: .82rem; font-weight: 800; }
.principle-grid h3 { margin: 46px 0 12px; font-size: 1.22rem; }
.principle-grid p { margin: 0; color: #bdbdc7; }

.site-footer { padding: 38px 0; border-top: 1px solid var(--line); background: #030304; }
.footer-inner { display: flex; justify-content: space-between; align-items: flex-end; gap: 32px; color: #9d9da8; font-size: .88rem; }
.footer-inner strong { color: #fff; font-size: 1rem; }
.footer-inner p { margin: 5px 0 0; }

@media (max-width: 920px) {
  .hero-grid { grid-template-columns: 1fr; gap: 20px; }
  .signal { min-height: 230px; }
  .ring-one { width: 230px; height: 230px; }
  .ring-two { width: 160px; height: 160px; }
  .ring-three { width: 90px; height: 90px; }
  .signal::before, .signal::after { width: 310px; }
  .product-grid { grid-template-columns: 1fr; }
  .product-card { min-height: 290px; }
  .company-grid { grid-template-columns: 1fr; gap: 26px; }
  .principle-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 650px) {
  .shell { width: min(calc(100% - 28px), var(--max)); }
  .header-inner { min-height: 96px; }
  .brand img { width: 158px; height: auto; }
  nav { gap: 14px; }
  nav a { font-size: .78rem; }
  nav a:nth-child(3) { display: none; }
  .hero { min-height: auto; }
  .hero-grid { padding: 76px 0 54px; }
  h1 { font-size: clamp(3rem, 15vw, 4.5rem); }
  .section { padding: 78px 0; }
  .product-card { padding: 25px; }
  .principle-grid { grid-template-columns: 1fr; }
  .principle-grid article { min-height: 200px; }
  .principle-grid h3 { margin-top: 32px; }
  .footer-inner { display: block; }
  .footer-inner > p { margin-top: 24px; }
}

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