* {
    box-sizing: border-box;
  }
  
  body {
    margin: 0;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    line-height: 1.5;
    color: #111827;
    background-color: #f9fafb;
  }
  
  a {
    color: #1d4ed8;
    text-decoration: none;
  }
  
  a:focus,
  a:hover {
    text-decoration: underline;
  }
  
  .site-header {
    background-color: #111827;
    color: #f9fafb;
    padding: 1.5rem 0;
  }
  
  .site-header h1 {
    margin: 0 0 0.25rem 0;
  }
  
  .site-header p {
    margin: 0 0 1rem 0;
  }
  
  .nav-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    gap: 1rem;
  }
  
  .nav-list a {
    color: #e5e7eb;
  }
  
  .nav-list a:focus,
  .nav-list a:hover {
    color: #ffffff;
    text-decoration: underline;
  }
  
  .container {
    max-width: 960px;
    margin: 0 auto;
    padding: 0 1rem;
  }
  
  .section {
    padding: 2rem 0;
  }
  
  .section-alt {
    background-color: #e5e7eb;
  }
  
  .section h2 {
    margin-top: 0;
  }
  
  .site-footer {
    background-color: #111827;
    color: #e5e7eb;
    text-align: center;
    padding: 1rem 0;
    font-size: 0.875rem;
  }
  /* Header layout */
.header-layout {
    display: flex;
    align-items: center;
    gap: 1.5rem;
  }
  
  /* Profile photo */
  .profile-photo {
    width: 90px;
    height: 90px;
    border-radius: 50%;   /* makes it circular */
    object-fit: cover;    /* keeps good proportions */
    border: 2px solid #e5e7eb;
  }
  
  /* Wrap text & nav beside photo */
  .header-text {
    display: flex;
    flex-direction: column;
  }