:root {
  color-scheme: dark;
  --bg: #07090e;
  --surface: rgba(255, 255, 255, 0.05);
  --line: rgba(0, 240, 255, 0.2);
  --text: #f0f6fc;
  --muted: #8b949e;
  --cyan: #00f0ff;
  --green: #00ff88;
  --orange: #ff9500;
  --copper: #e07a3f;
  --gold: #f59e0b;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background:
    radial-gradient(circle at 10% 0%, rgba(0, 240, 255, 0.15), transparent 35rem),
    radial-gradient(circle at 90% 20%, rgba(224, 122, 63, 0.15), transparent 30rem),
    radial-gradient(circle at 50% 80%, rgba(0, 255, 136, 0.08), transparent 35rem),
    var(--bg);
  color: var(--text);
  font: 16px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, monospace, sans-serif;
}

a { color: inherit; }
.container { width: min(1140px, calc(100% - 40px)); margin: auto; }

.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid var(--line);
  background: rgba(7, 9, 14, 0.90);
  backdrop-filter: blur(18px);
}

.nav-inner, .footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 16px 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  font-family: monospace;
  font-size: 18px;
  letter-spacing: 0.05em;
  text-decoration: none;
}

.brand-icon {
  display: grid;
  width: 40px;
  height: 40px;
  place-items: center;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--copper), var(--gold));
  color: #050b14;
  font-size: 20px;
  font-weight: bold;
}

.links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 20px;
}

.links a {
  color: var(--muted);
  font-size: 14px;
  font-family: monospace;
  text-decoration: none;
  transition: color 0.2s;
}

.links a:hover { color: var(--cyan); }

.hero {
  padding: 70px 0 45px;
  text-align: center;
}

.badge {
  display: inline-flex;
  border: 1px solid var(--copper);
  border-radius: 999px;
  background: rgba(224, 122, 63, 0.14);
  color: var(--copper);
  padding: 6px 18px;
  font-size: 12px;
  font-family: monospace;
  letter-spacing: 0.1em;
  font-weight: bold;
  text-transform: uppercase;
  margin-bottom: 20px;
}

h1 {
  margin: 0 auto 20px;
  max-width: 900px;
  font-size: clamp(28px, 5vw, 46px);
  line-height: 1.15;
  letter-spacing: -0.02em;
  font-weight: 900;
}

.lead {
  margin: 0 auto 30px;
  max-width: 780px;
  color: var(--muted);
  font-size: clamp(16px, 2vw, 19px);
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
}

.button {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--copper), var(--gold));
  color: #050b14;
  padding: 13px 26px;
  font-weight: 800;
  font-family: monospace;
  text-decoration: none;
  transition: transform 0.2s, box-shadow 0.2s;
}

.button:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(224, 122, 63, 0.35);
}

.button.outline {
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.05);
  color: var(--text);
}

.button.outline:hover {
  border-color: var(--cyan);
  background: rgba(0, 240, 255, 0.1);
  box-shadow: 0 8px 24px rgba(0, 240, 255, 0.2);
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
  padding: 30px 0;
}

.card {
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 16px;
  background: var(--surface);
  padding: 26px;
  backdrop-filter: blur(12px);
  transition: transform 0.2s, border-color 0.2s, box-shadow 0.2s;
}

.card:hover {
  transform: translateY(-4px);
  border-color: var(--copper);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.4);
}

.card.highlight {
  border-color: rgba(224, 122, 63, 0.45);
  background: linear-gradient(145deg, rgba(224, 122, 63, 0.08), rgba(0, 240, 255, 0.04));
}

.card-icon {
  font-size: 32px;
  display: inline-block;
  margin-bottom: 12px;
}

.card h2, .card h3 {
  margin: 0 0 10px;
  font-size: 20px;
  font-weight: 800;
}

.card p {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.55;
}

.section-title {
  text-align: center;
  font-size: clamp(24px, 4vw, 34px);
  font-weight: 900;
  margin: 40px 0 10px;
}

.section-sub {
  text-align: center;
  color: var(--muted);
  margin-bottom: 30px;
}

.tech-spec-box {
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  padding: 16px;
  font-family: monospace;
  font-size: 13px;
  margin-top: 14px;
  color: #c9d1d9;
}

.tech-spec-box code {
  color: var(--copper);
  font-weight: bold;
}

.footer {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  margin-top: 60px;
  font-size: 13px;
  color: var(--muted);
  font-family: monospace;
}

@media (max-width: 768px) {
  .nav-inner, .footer { flex-direction: column; text-align: center; }
  .grid { grid-template-columns: 1fr; }
}