:root {
  color-scheme: light;
  font-family: "Helvetica Neue", Arial, sans-serif;
  line-height: 1.5;
}

body {
  margin: 0;
  background: #f9f9f9;
  color: #1f1f1f;
}

header,
footer {
  background: #0f172a;
  color: #f8fafc;
  padding: 1.5rem;
}

.site-header .navbar {
  padding: 0;
}

.site-header .navbar-brand img {
  max-width: 300px;
  height: auto;
}

.site-header .navbar-nav .nav-link {
  color: inherit;
  font-weight: 600;
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.05em;
}

.site-header .navbar-nav .nav-link:hover,
.site-header .navbar-nav .nav-link:focus {
  color: #e2e8f0;
}

.site-header .navbar-toggler {
  border-color: rgba(255, 255, 255, 0.4);
}

.site-header .navbar-toggler:focus {
  box-shadow: 0 0 0 0.2rem rgba(226, 232, 240, 0.3);
}

main {
  padding: 2rem 1.5rem;
  max-width: 960px;
  margin: 0 auto;
}

h1 {
  font-size: clamp(2rem, 6vw, 3rem);
  margin-bottom: 0.75rem;
}