:root {
  --bg: #071018;
  --bg-soft: #0d1724;
  --panel: rgba(12, 20, 33, 0.9);
  --panel-2: #111b2b;
  --line: rgba(255,255,255,0.09);
  --text: #eef4ff;
  --muted: #98aac7;
  --blue: #1e90ff;
  --blue-2: #68b4ff;
  --green: #21c55d;
  --amber: #ffc043;
  --shadow: 0 24px 50px rgba(0,0,0,0.35);
  --radius: 22px;
  --container: 1180px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, Segoe UI, Arial, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top right, rgba(30,144,255,0.18), transparent 24%),
    radial-gradient(circle at left center, rgba(33,197,93,0.10), transparent 18%),
    linear-gradient(180deg, #06111b 0%, #09131f 100%);
  line-height: 1.6;
}
a { color: inherit; text-decoration: none; }
.container { width: min(var(--container), calc(100% - 40px)); margin: 0 auto; }
.narrow { width: min(900px, calc(100% - 40px)); margin: 0 auto; }
.site-header {
  position: sticky; top: 0; z-index: 40;
  backdrop-filter: blur(14px);
  background: rgba(6, 17, 27, 0.78);
  border-bottom: 1px solid var(--line);
}
.nav-wrap { display: flex; justify-content: space-between; align-items: center; min-height: 78px; gap: 24px; }
.brand { display: flex; align-items: center; gap: 14px; }
.brand strong { display: block; letter-spacing: 0.08em; }
.brand small { display: block; color: var(--muted); font-size: 0.78rem; }
.brand-mark {
  width: 46px; height: 46px; border-radius: 14px;
  display: grid; place-items: center; font-weight: 800;
  background: linear-gradient(135deg, var(--blue), var(--green));
  box-shadow: 0 10px 24px rgba(30,144,255,0.28);
}
.nav { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }
.nav a { color: var(--muted); }
.nav a.active, .nav a:hover { color: var(--text); }
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 12px 18px; border-radius: 999px; font-weight: 700;
  border: 1px solid transparent; transition: 0.2s ease;
}
.btn-primary { background: linear-gradient(135deg, var(--blue), #56b4ff); color: white; box-shadow: 0 12px 28px rgba(30,144,255,0.28); }
.btn-primary:hover, .btn-secondary:hover, .btn-outline:hover { transform: translateY(-1px); }
.btn-secondary { background: rgba(255,255,255,0.04); border-color: var(--line); }
.btn-outline { border-color: var(--line); }
.hero, .page-hero { padding: 88px 0 64px; }
.hero-grid { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 36px; align-items: center; }
.eyebrow { color: var(--blue-2); font-size: 0.82rem; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; margin-bottom: 10px; }
h1, h2, h3 { line-height: 1.12; margin: 0 0 14px; }
h1 { font-size: clamp(2.6rem, 5vw, 4.8rem); }
h2 { font-size: clamp(1.8rem, 3vw, 3rem); }
h3 { font-size: 1.15rem; }
.lead { font-size: 1.08rem; color: var(--muted); max-width: 68ch; }
.cta-row { display: flex; gap: 14px; margin: 28px 0 26px; flex-wrap: wrap; }
.stat-row { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 14px; }
.stat-row li, .spec-card {
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 16px;
}
.stat-row strong, .spec-card strong { display: block; font-size: 1.2rem; }
.stat-row span, .spec-card span { color: var(--muted); font-size: 0.92rem; }
.glass, .card, .architecture-panel, .code-panel, .stack-panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.hero-card { padding: 28px; }
.diagram-block { text-align: center; }
.diagram-box {
  padding: 14px 16px; margin: 10px auto; border-radius: 14px;
  background: rgba(255,255,255,0.05); border: 1px solid var(--line);
  width: min(100%, 270px); font-weight: 700;
}
.diagram-box.accent { background: rgba(255,192,67,0.08); }
.diagram-box.core { background: rgba(30,144,255,0.16); }
.diagram-box.green { background: rgba(33,197,93,0.10); }
.diagram-line { width: 2px; height: 28px; margin: 0 auto; background: linear-gradient(var(--blue), transparent); }
.diagram-fan { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; margin-top: 12px; }
.section { padding: 72px 0; }
.section-dark { background: rgba(255,255,255,0.02); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.section-head { margin-bottom: 26px; }
.cards { display: grid; gap: 18px; }
.cards.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.cards.three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.cards.four { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.card { padding: 24px; }
.card.compact { padding: 20px; }
.split-grid { display: grid; grid-template-columns: 0.8fr 1.2fr; gap: 28px; align-items: start; }
.feature-list { display: grid; gap: 16px; }
.feature-list div { padding: 18px 0; border-bottom: 1px solid var(--line); }
.feature-list strong { display: block; margin-bottom: 6px; }
.feature-list span { color: var(--muted); }
.cta-band { padding-top: 40px; }
.cta-banner {
  display: flex; justify-content: space-between; align-items: center; gap: 24px;
  background: linear-gradient(135deg, rgba(30,144,255,0.16), rgba(33,197,93,0.08));
  border: 1px solid var(--line); border-radius: 24px; padding: 28px;
}
.page-main { min-height: 70vh; }
.spec-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; }
.architecture-panel, .code-panel, .stack-panel { padding: 24px; overflow: auto; }
pre { margin: 0; color: #dce7f7; font-family: Consolas, Monaco, monospace; font-size: 0.96rem; white-space: pre-wrap; }
.clean-list { margin: 0; padding-left: 18px; color: var(--muted); }
.contact-grid { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 18px; }
.contact-form { display: grid; gap: 14px; }
.contact-form label { display: grid; gap: 7px; font-weight: 600; }
.contact-form input, .contact-form textarea, .contact-form select {
  width: 100%; padding: 13px 14px; border-radius: 14px;
  border: 1px solid var(--line); background: rgba(255,255,255,0.04); color: var(--text);
}
.contact-form select option { background: #0f172a; color: var(--text); }
.note { color: var(--muted); font-size: 0.95rem; }
.site-footer { border-top: 1px solid var(--line); padding: 28px 0; margin-top: 30px; }
.footer-grid { display: flex; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.footer-grid div:last-child { display: flex; gap: 18px; flex-wrap: wrap; color: var(--muted); }
.kicker-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 18px; }
.muted { color: var(--muted); }
@media (max-width: 980px) {
  .hero-grid, .split-grid, .contact-grid, .cards.three, .cards.four, .spec-grid, .kicker-grid { grid-template-columns: 1fr; }
  .cards.two { grid-template-columns: 1fr; }
  .cta-banner, .nav-wrap { flex-direction: column; align-items: flex-start; }
  .stat-row { grid-template-columns: repeat(2, minmax(0,1fr)); }
}
@media (max-width: 640px) {
  .container, .narrow { width: min(100% - 24px, 1180px); }
  .hero, .page-hero { padding-top: 54px; }
  h1 { font-size: 2.4rem; }
  .stat-row { grid-template-columns: 1fr; }
  .diagram-fan { grid-template-columns: 1fr; }
}

.hardware-overview-grid {
  grid-template-columns: 0.9fr 1.1fr;
}
.product-stack {
  display: grid;
  gap: 20px;
}
.product-card {
  padding: 26px;
}
.product-card-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 18px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}
.product-kicker {
  margin: 0 0 6px;
  color: var(--blue-2);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.product-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-top: 18px;
}
.pill {
  display: inline-flex;
  align-items: center;
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.04);
  color: var(--muted);
  font-size: 0.85rem;
  font-weight: 700;
}
@media (max-width: 980px) {
  .hardware-overview-grid,
  .product-grid {
    grid-template-columns: 1fr;
  }
}