body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: #1f2933;
  background-color: #f5f7fa;
}

.section {
  padding: 4rem 0;
}

.section-light {
  background-color: #ffffff;
}

.section-muted {
  background-color: #eef2f7;
}

.section-dark {
  background: #111827;
  color: #e5e7eb;
}

.section-dark h2 {
  color: #f9fafb;
}

h1.hero-title {
  font-weight: 700;
  letter-spacing: 0.03em;
}

.hero-subtitle {
  font-size: 1.1rem;
  max-width: 640px;
  margin: 0.75rem auto 1.5rem;
}

.btn-primary {
  background: #2563eb;
  border-color: #2563eb;
}

.btn-primary:hover {
  background: #1d4ed8;
  border-color: #1d4ed8;
}

.btn-outline-primary {
  color: #2563eb;
  border-color: #2563eb;
  background: transparent;
}

.btn-outline-primary:hover {
  background: #2563eb;
  color: #ffffff;
}

#hero.hero-area {
  position: relative;
  min-height: 60vh;
  display: flex;
  align-items: center;
}

#hero .hero-overlay {
  position: absolute;
  inset: 0;
}

#hero .hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  color: #f9fafb;
}