/* --- Global Styles --- */
body {
  font-family: "Courier New", Courier, monospace;
  background: white;
  color: black;
  line-height: 1.6;
  max-width: 900px;
  margin: 40px auto;
  padding: 0 20px;
}

img { max-width: 100%; }
a { color: black; }

hr { border: 0; border-top: 1px solid black; margin: 20px 0; }

header {
  border-bottom: 2px solid black; /* Made it thicker (2px) and pure black */
  margin-bottom: 2rem;
  padding-bottom: 10px;
}

footer {
  border-top: 2px solid black; /* Consistent with the header */
  margin-top: 3rem;
  padding-top: 20px;
}

nav a { 
    margin-right: 15px; 
    text-decoration: none; 
    color: black; 
    font-weight: bold; 
}

nav a:hover { text-decoration: underline; }


/* --- Publications/Books Grid --- */
.grid { 
    display: grid; 
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); 
    gap: 20px; 
    margin-top: 20px;
}

.book-item img { 
    width: 100%; 
    height: auto; 
    border: 1px solid black; 
    display: block;
    transition: transform 0.1s; 
}

.book-item img:hover {
    transform: translate(-4px, -4px); 
    box-shadow: 4px 4px 0px black; 
}

main ul { 
    list-style-type: "\2192  "; /* This is the hex code for the arrow */
    padding-left: 20px; 
}
main ul li { margin-bottom: 12px; }
main a { color: black; text-decoration: none; border-bottom: 1px solid black; }
main a:hover { background-color: black; color: white; }