body {font-family: system-ui, sans-serif; max-width: 760px; margin: auto; padding: 1em; line-height: 1.6;}
header { text-align: center; margin-bottom: 2em;}
.profile-pic {width: 140px; height: 140px; border-radius: 50%; object-fit: cover; margin: 1rem auto; display: block;}
nav ul { list-style: none; display: flex; gap: 1rem; justify-content: center; padding: 0;}
nav a { text-decoration: none; color: #0366d6;}
footer { text-align: center; margin-top: 2em; font-size: 0.9em; color: #666;}