:root {
  color-scheme: light;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.6;
  color: #1f2937;
  background: #f8fafc;
}

.container {
  width: min(960px, 92%);
  margin: 0 auto;
}

.site-header {
  background: #111827;
  color: #f9fafb;
  padding: 0.9rem 0;
}

.logo {
  margin: 0;
  font-size: 1.1rem;
}

.logo a,
.nav a {
  color: inherit;
  text-decoration: none;
}

.nav {
  display: flex;
  gap: 1rem;
  margin-top: 0.5rem;
}

.card {
  margin-top: 1.25rem;
  background: #ffffff;
  border: 1px solid #e5e7eb;
  border-radius: 10px;
  padding: 1rem 1.1rem;
}