/* ---------- Global layout ---------- */

html {
  font-size: 20px;
}

body {
  margin: 0;
  padding: 0;
  font-family: 'EB Garamond', "Times New Roman", serif;
  line-height: 1.65;
  color: #222;
  background: #fff;
}

/* ---------- Page container ---------- */

header,
main,
footer {
  max-width: 780px;
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}

header {
  padding-top: 48px;
  padding-bottom: 24px;
}

main {
  padding-bottom: 48px;
}

footer {
  padding-top: 24px;
  padding-bottom: 48px;
  font-size: 0.9rem;
  color: #666;
  border-top: 1px solid #ddd;
}

/* ---------- Typography ---------- */

h1,
h2,
h3,
h4 {
  line-height: 1.25;
  font-weight: normal;
  color: #111;
}

h1 {
  font-size: 2.2rem;
  margin: 0 0 16px 0;
}

h2 {
  font-size: 1.6rem;
  margin-top: 36px;
  margin-bottom: 16px;
}

h3 {
  font-size: 1.25rem;
  margin-top: 28px;
  margin-bottom: 12px;
}

h4 {
  font-size: 1.05rem;
  margin-top: 24px;
  margin-bottom: 8px;
  font-style: italic;
}

p {
  margin-top: 0;
  margin-bottom: 18px;
}

ul,
ol {
  margin-top: 0;
  margin-bottom: 18px;
  padding-left: 28px;
}

li {
  margin-bottom: 8px;
}

/* ---------- Links ---------- */

a {
  color: #9b0000;
  text-decoration: none;
}

a:hover,
a:focus {
  text-decoration: underline;
}

/* ---------- Navigation ---------- */

nav {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid #ddd;
}

nav a {
  display: inline-block;
  margin-right: 18px;
  margin-bottom: 8px;
  color: #333;
}

nav a:hover,
nav a:focus {
  color: #9b0000;
}

/* ---------- Sections and articles ---------- */

section {
  margin-bottom: 32px;
}

article {
  margin-bottom: 28px;
}

/* ---------- MathJax display math ---------- */

mjx-container[jax="CHTML"][display="true"] {
  margin: 1.2em 0;
  overflow-x: auto;
  overflow-y: hidden;
}

/* Keeps long equations usable on phones */
.MathJax,
mjx-container {
  max-width: 100%;
}

/* ---------- Code blocks, if needed later ---------- */

pre,
code {
  font-family: Menlo, Consolas, Monaco, monospace;
  font-size: 0.9rem;
}

pre {
  overflow-x: auto;
  padding: 16px;
  background: #f7f7f7;
  border: 1px solid #ddd;
}

/* ---------- Images ---------- */

img {
  max-width: 100%;
  height: auto;
}

/* Optional profile image style */
.profile-photo {
  max-width: 180px;
  border-radius: 4px;
}

/* ---------- Tables, if needed later ---------- */

table {
  border-collapse: collapse;
  width: 100%;
  margin-bottom: 24px;
}

th,
td {
  border-bottom: 1px solid #ddd;
  padding: 8px;
  text-align: left;
}

th {
  font-weight: bold;
}

/* ---------- Small screens ---------- */

@media (max-width: 600px) {
  html {
    font-size: 16px;
  }

  header {
    padding-top: 32px;
  }

  nav a {
    display: block;
    margin-right: 0;
  }
}