:root {
  --text: #334155;
  --heading: #1e293b;
  --accent: #046bd2;
  --border: #e2e8f0;
  --bg: #ffffff;
  --bg-alt: #f0f5fa;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
  font-size: 16px;
  line-height: 1.65;
  color: var(--text);
  background: var(--bg);
}

a { color: var(--accent); }
a:hover { color: #045cb4; }

h1, h2, h3, h4 { color: var(--heading); line-height: 1.3; }
h1 { font-size: 2.25rem; margin-top: 0; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

.site-header { border-bottom: 1px solid var(--border); }
.site-header .container { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 80px; }
.site-header nav { display: flex; flex-wrap: wrap; gap: 20px; }
.site-header nav a { color: var(--heading); text-decoration: none; font-weight: 500; }
.site-header nav a:hover { color: var(--accent); }
.logo img { display: block; height: 60px; width: auto; }

main { padding: 64px 0; }
main.alt { background: var(--bg-alt); }
.content { max-width: 800px; margin: 0 auto; }

.button {
  display: inline-block;
  padding: 12px 24px;
  margin: 0 8px 8px 0;
  background: var(--accent);
  color: #fff;
  border-radius: 4px;
  text-decoration: none;
  font-weight: 500;
}
.button:hover { background: #045cb4; color: #fff; }

hr { border: 0; border-top: 1px solid var(--border); margin: 32px 0; }

.site-footer { border-top: 1px solid var(--border); padding: 24px 0; font-size: 14px; }
.site-footer .container { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; }
.site-footer nav { display: flex; flex-wrap: wrap; gap: 16px; }

@media (max-width: 600px) {
  h1 { font-size: 1.75rem; }
  main { padding: 40px 0; }
}