/* Base styles — plain CSS, no framework. Easy to hand-edit or have Claude change. */
:root {
  --bg: #ffffff;
  --text: #1a1a1a;
  --accent: #2563eb;
  --muted: #6b7280;
  --border: #e5e7eb;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  max-width: 720px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 2rem;
}

h1 {
  font-size: 1.5rem;
  font-weight: 700;
}

nav {
  display: flex;
  gap: 1.25rem;
}

nav a {
  color: var(--text);
  text-decoration: none;
  font-size: 0.95rem;
}

nav a:hover {
  color: var(--accent);
}

section {
  margin-bottom: 2.5rem;
}

h2 {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
}

ul {
  list-style: none;
}

li {
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--border);
}

a {
  color: var(--accent);
}

footer {
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.875rem;
}

@media (max-width: 480px) {
  header {
    flex-direction: column;
    align-items: flex-start;
  }
}