body { font-family: system-ui, sans-serif; max-width: 720px; margin: 2rem auto; padding: 0 1rem; }
nav { display: flex; gap: 0.5rem; margin: 1rem 0; }
nav button { padding: 0.5rem 1rem; cursor: pointer; }
#portfolio { list-style: none; padding: 0; }
#portfolio li.project { padding: 0.75rem 0; border-bottom: 1px solid #ddd; }
#portfolio .desc { display: block; color: #555; font-size: 0.9rem; }
#portfolio .lang { display: inline-block; margin-top: 0.25rem; font-size: 0.8rem; color: #888; background: #f0f0f0; padding: 0.1rem 0.4rem; border-radius: 3px; }
#portfolio .empty, #portfolio .error { color: #888; }