*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0;
  background: #020617;
  color: #e5e7eb;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text", sans-serif;
}

a {
  color: #38bdf8;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.container {
  width: min(1120px, 100% - 2rem);
  margin: 0 auto;
}

.site-header {
  border-bottom: 1px solid rgba(148, 163, 184, 0.25);
  background: radial-gradient(circle at top, #0f172a 0, #020617 45%);
  padding: 1.5rem 0 1.25rem;
}

.logo {
  margin: 0;
  font-size: 1.5rem;
  font-weight: 700;
}

.tagline {
  margin: 0.25rem 0 0;
  color: #94a3b8;
  font-size: 0.95rem;
}

.site-main {
  padding: 2.5rem 0 3rem;
}

.hero {
  padding: 1.5rem 0 2.5rem;
}

.hero h2 {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  margin: 0 0 0.75rem;
}

.hero p {
  margin: 0 0 1.5rem;
  color: #cbd5f5;
  max-width: 40rem;
}

.btn-primary {
  display: inline-block;
  padding: 0.7rem 1.4rem;
  border-radius: 999px;
  background: linear-gradient(135deg, #2563eb, #22c55e);
  color: #f9fafb;
  font-weight: 600;
  font-size: 0.95rem;
}

.btn-primary:hover {
  opacity: 0.9;
}

.systems {
  padding: 1.5rem 0 2.5rem;
}

.systems h2,
.contact h2 {
  margin: 0 0 1.5rem;
  font-size: 1.4rem;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.25rem;
}

.card {
  padding: 1.2rem 1.1rem 1.1rem;
  border-radius: 0.9rem;
  background: radial-gradient(circle at top left, #1e293b, #020617);
  border: 1px solid rgba(148, 163, 184, 0.3);
}

.card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.05rem;
}

.card ul {
  margin: 0.3rem 0 0;
  padding-left: 1.1rem;
  color: #cbd5e1;
  font-size: 0.9rem;
}

.contact {
  padding: 1.5rem 0 0;
}

.contact p {
  margin: 0 0 0.5rem;
  color: #cbd5f5;
}

.site-footer {
  border-top: 1px solid rgba(148, 163, 184, 0.3);
  padding: 1rem 0 1.4rem;
  font-size: 0.8rem;
  color: #9ca3af;
}