:root {
  --color-bg: #ffffff;
  --color-text: #1a1a1a;
  --color-muted: #6b7280;
  --color-accent: #2563eb;
  --color-border: #e5e7eb;
  --color-card-bg: #f9fafb;
  --max-width: 800px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-bg: #0f1115;
    --color-text: #e5e7eb;
    --color-muted: #9ca3af;
    --color-accent: #60a5fa;
    --color-border: #262b33;
    --color-card-bg: #171a21;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.site-header {
  border-bottom: 1px solid var(--color-border);
  padding: 1.5rem 0;
}

.site-header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.site-title {
  margin: 0;
  font-size: 1.25rem;
}

.site-nav a {
  margin-left: 1.25rem;
  color: var(--color-text);
  text-decoration: none;
  font-size: 0.95rem;
}

.site-nav a:first-child {
  margin-left: 0;
}

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

main {
  padding: 3rem 1.5rem;
}

section {
  margin-bottom: 3.5rem;
}

section h2 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.25rem;
}

.project-card {
  background: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 1.25rem;
}

.project-card h3 {
  margin-top: 0;
}

.project-card a {
  color: var(--color-accent);
  text-decoration: none;
  font-size: 0.9rem;
}

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

.site-footer {
  border-top: 1px solid var(--color-border);
  padding: 1.5rem 0;
  color: var(--color-muted);
  font-size: 0.875rem;
}