/* Base */
:root {
  --bg: #faf9f5;
  --fg: #1a1a1a;
  --accent: #8b5cf6;
  --border: #e2e0d8;
  --muted: #6b6b6b;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
}

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

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--fg);
  line-height: 1.6;
  max-width: 48rem;
  margin: 0 auto;
  padding: 2rem 1.5rem;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Header */
.site-header { margin-bottom: 3rem; }
.site-header nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}
.site-header .logo {
  font-weight: 700;
  font-size: 1.2rem;
  text-decoration: none;
  color: var(--fg);
  letter-spacing: -0.02em;
}
.nav-links { display: flex; gap: 1.5rem; }
.nav-links a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.15s;
}
.nav-links a:hover { color: var(--fg); }

/* Main content */
main { flex: 1; }

/* Footer */
.site-footer {
  margin-top: 4rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  font-size: 0.85rem;
  color: var(--muted);
}

/* Typography */
h1 { font-size: 2.5rem; font-weight: 700; line-height: 1.2; margin-bottom: 0.5rem; letter-spacing: -0.03em; }
h2 { font-size: 1.5rem; font-weight: 600; margin-top: 2.5rem; margin-bottom: 0.75rem; }
h3 { font-size: 1.15rem; font-weight: 600; margin-top: 1.5rem; margin-bottom: 0.5rem; }
p { margin-bottom: 1rem; }
a { color: var(--accent); }

/* Project list */
.project-list { list-style: none; }
.project-list li {
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--border);
}
.project-list li:last-child { border-bottom: none; }
.project-list a {
  text-decoration: none;
  color: var(--fg);
  display: block;
}
.project-list h2 { margin-top: 0; }
.project-list time {
  display: block;
  font-size: 0.85rem;
  color: var(--muted);
  margin-bottom: 0.25rem;
}
.project-list p { color: var(--muted); font-size: 0.95rem; }

/* Hero */
.hero h1 { margin-bottom: 1rem; }
.hero .subtitle {
  font-size: 1.1rem;
  color: var(--muted);
  line-height: 1.5;
  max-width: 36rem;
}

/* Responsive */
@media (max-width: 640px) {
  body { padding: 1.5rem 1rem; }
  h1 { font-size: 1.8rem; }
  .site-header nav { flex-direction: column; gap: 1rem; }
}