/* madaniharouach.github.io — minimal serif */

@import url('https://fonts.googleapis.com/css2?family=PT+Serif:ital,wght@0,400;0,700;1,400;1,700&display=swap');

:root {
  --paper: #fffaf0;
  --ink:   #222;
  --muted: #777;
  --rule:  #e6e0d2;
}

* { box-sizing: border-box; }

html { font-size: 18px; -webkit-font-smoothing: antialiased; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: 'PT Serif', Georgia, 'Times New Roman', serif;
  line-height: 1.7;
}

.wrap {
  max-width: 38rem;
  margin: 0 auto;
  padding: 3rem 1.25rem 4rem;
}

@media (min-width: 720px) {
  .wrap { padding: 4rem 1.5rem 5rem; }
}

/* nav */
.site-nav {
  margin-bottom: 3rem;
  font-size: 0.95rem;
}

.site-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1.4rem;
}

.site-nav a {
  color: var(--ink);
  text-decoration: none;
}

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

/* type */
h1, h2, h3 {
  font-weight: 700;
  line-height: 1.2;
  margin: 0 0 1rem;
}

h1 { font-size: 2rem; margin-top: 0.5rem; }
h2 { font-size: 1.4rem; margin-top: 2.5rem; }
h3 { font-size: 1.1rem; margin-top: 1.75rem; }

p { margin: 0 0 1.1rem; }

a {
  color: var(--ink);
  text-decoration: underline;
  text-underline-offset: 2px;
}

a:hover { color: var(--muted); }

ul, ol { padding-left: 1.25rem; }
li { margin-bottom: 0.4rem; }

/* sub-nav under a page title (math page) */
.subnav {
  list-style: none;
  padding: 0;
  margin: 0 0 1.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1.4rem;
  font-size: 0.95rem;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  padding: 0.6rem 0;
}

.subnav li { margin: 0; }

.subnav a {
  color: var(--ink);
  text-decoration: none;
}

.subnav a:hover { text-decoration: underline; }

/* breadcrumb back-link on sub-pages */
.crumb {
  font-size: 0.85rem;
  color: var(--muted);
  margin: 0 0 1.5rem;
}

.crumb a {
  color: var(--muted);
  text-decoration: none;
}

.crumb a:hover {
  color: var(--ink);
  text-decoration: underline;
}

blockquote {
  margin: 1.5rem 0;
  padding-left: 1rem;
  border-left: 2px solid var(--rule);
  color: var(--muted);
  font-style: italic;
}

hr {
  border: 0;
  border-top: 1px solid var(--rule);
  margin: 2.5rem 0;
}

/* footer */
.site-foot {
  margin-top: 4rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--rule);
  font-size: 0.85rem;
  color: var(--muted);
}

.site-foot a { color: var(--muted); }