:root {
  --ink: #1a1a1a;
  --muted: #5a5a5a;
  --accent: #2563eb;
  --bg: #ffffff;
  --border: #e5e5e5;
}

* { box-sizing: border-box; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  color: var(--ink);
  background: var(--bg);
  max-width: 720px;
  margin: 0 auto;
  padding: 48px 24px;
  line-height: 1.6;
}

header h1 {
  margin-bottom: 4px;
  font-size: 2rem;
}

.tagline {
  color: var(--muted);
  margin-top: 0;
}

nav a {
  color: var(--accent);
  text-decoration: none;
  margin-right: 16px;
  font-weight: 600;
}

nav a:hover { text-decoration: underline; }

section {
  margin-top: 40px;
}

h2 {
  border-bottom: 2px solid var(--border);
  padding-bottom: 6px;
  font-size: 1.25rem;
}

.project-list li, #experience .job {
  margin-bottom: 16px;
}

.project-list h3, #experience h3 {
  margin-bottom: 2px;
  font-size: 1.05rem;
}

footer {
  margin-top: 48px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.9rem;
}