* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.6;
  color: #1f2937;
  background: #f8fafc;
}

.container {
  width: min(1100px, 92%);
  margin: 0 auto;
}

.site-header {
  background: #0f172a;
  color: white;
  padding: 16px 0;
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
}

.logo {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.5px;
}

nav {
  display: flex;
  gap: 16px;
  align-items: center;
  flex-wrap: wrap;
}

nav a {
  color: white;
  text-decoration: none;
  font-weight: 600;
}

.hero {
  padding: 80px 0;
  background: white;
}

.hero h1 {
  font-size: 2.5rem;
  margin-bottom: 16px;
  line-height: 1.2;
}

.hero p {
  max-width: 760px;
  font-size: 1.1rem;
  margin-bottom: 24px;
}

.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.section {
  padding: 60px 0;
}

.section-alt {
  background: #e5e7eb;
}

.cta-section {
  text-align: center;
  background: white;
}

.grid-2,
.grid-3 {
  display: grid;
  gap: 20px;
}

.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.stack {
  display: grid;
  gap: 20px;
}

.card {
  background: white;
  padding: 24px;
  border-radius: 10px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

.btn {
  display: inline-block;
  background: #1d4ed8;
  color: white;
  text-decoration: none;
  padding: 12px 18px;
  border-radius: 8px;
  font-weight: 700;
}

.btn-secondary {
  background: #334155;
}

.btn-small {
  padding: 10px 14px;
}

.site-footer {
  background: #0f172a;
  color: white;
  text-align: center;
  padding: 20px 0;
  margin-top: 20px;
}

ul {
  padding-left: 20px;
}

@media (max-width: 700px) {
  .nav {
    flex-direction: column;
    align-items: flex-start;
  }

  .hero h1 {
    font-size: 2rem;
  }
}