.intro-flex{ display:flex; align-items:center; gap:24px; flex-wrap:wrap; }
.portrait{ max-width:200px; border-radius:30%; box-shadow:var(--shadow); flex-shrink:0; }
.intro-text{ flex:1; min-width:250px; }

.pdf-link{ display:block; width:fit-content; margin:12px auto; }
.pdf-thumb{
  display:block; width:100%; max-width:250px; height:auto;
  border-radius:8px; box-shadow:var(--shadow);
  transition: transform .2s ease, box-shadow .2s ease;
}
.pdf-thumb:hover{ transform: scale(1.03); }