/* Base */
* {
  box-sizing: border-box;
  scroll-behavior: smooth;
}
body {
  margin: 0;
  padding: 2.5rem 1.25rem 10vh;
  font-family: "Georgia", "Times New Roman", serif;
  font-size: 1.05rem;
  line-height: 1.75;
  background-color: #fff;
  color: #222;
  max-width: 750px;
  margin-left: auto;
  margin-right: auto;
  transition: background 0.3s, color 0.3s;
}
main {
  padding-top: 4rem;
}

/* Top Nav */
#topbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: #eee;
  border-bottom: 1px solid #ccc;
  padding: 0.5rem 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: sans-serif;
  z-index: 1000;
}
#topbar a {
  text-decoration: none;
  color: #0d47a1;
  font-weight: 600;
}
#topbar button {
  background: none;
  border: none;
  font-size: 1.2rem;
  cursor: pointer;
  margin-left: 0.5rem;
}

/* Header Block */
h1 {
  font-family: "Palatino Linotype", "Book Antiqua", Palatino, serif;
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
  color: #00274d;
  border-bottom: 2px solid #ccc;
  padding-bottom: 0.25rem;
}
h2.subtitle {
  font-size: 1.2rem;
  font-weight: 400;
  color: #444;
  margin-top: 0;
}
.byline, .dateline {
  font-style: italic;
  color: #666;
  font-size: 0.9rem;
  margin: 0.25rem 0;
}

/* Headings */
h2, h3, h4 {
  font-family: sans-serif;
  color: #0d47a1;
  margin-top: 2rem;
  margin-bottom: 0.5rem;
}
h2 { font-size: 1.4rem; }
h3 { font-size: 1.2rem; }
h4 { font-size: 1.1rem; }

/* Content */
p {
  margin-top: 1rem;
  margin-bottom: 1rem;
}
ul, ol {
  margin-top: 1rem;
  padding-left: 1.5rem;
}
li {
  margin-bottom: 0.5rem;
}
blockquote {
  margin-left: 0;
  padding-left: 1rem;
  border-left: 3px solid #ccc;
  color: #555;
}
code {
  font-family: "Courier New", Courier, monospace;
  background-color: #f4f4f4;
  padding: 0.1em 0.3em;
  border-radius: 3px;
}

/* Dark Mode */
body.dark {
  background-color: #121212;
  color: #e0e0e0;
}
body.dark h1, body.dark h2, body.dark h3 {
  color: #80cbc4;
}
body.dark #topbar {
  background-color: #1e1e1e;
  border-bottom: 1px solid #333;
}
body.dark a {
  color: #64b5f6;
}
body.dark blockquote {
  border-left-color: #555;
  color: #bbb;
}
body.dark code {
  background-color: #333;
}

/* Print Mode */
@media print {
  #topbar, #toggle-dark, button[onclick*="print"] {
    display: none !important;
  }
  body {
    background: white !important;
    color: black !important;
    font-size: 11pt;
    padding: 0;
    max-width: 100%;
  }
  h1, h2, h3 {
    color: black !important;
  }
}