/* ==========================================================
   Fundamentals of Liberty: site styles
   Colors and fonts are set once, in the :root block below.
   The gold (#AA9B55) is the background color the author chose for
   the original site in January 2011.
   ========================================================== */

@font-face {
  font-family: "Libre Caslon Text";
  src: url("../fonts/libre-caslon-text-latin-400-normal.woff2") format("woff2");
  font-weight: 400; font-style: normal; font-display: swap;
}
@font-face {
  font-family: "Libre Caslon Text";
  src: url("../fonts/libre-caslon-text-latin-400-italic.woff2") format("woff2");
  font-weight: 400; font-style: italic; font-display: swap;
}
@font-face {
  font-family: "Libre Caslon Text";
  src: url("../fonts/libre-caslon-text-latin-700-normal.woff2") format("woff2");
  font-weight: 700; font-style: normal; font-display: swap;
}
@font-face {
  font-family: "Libre Caslon Display";
  src: url("../fonts/libre-caslon-display-latin-400-normal.woff2") format("woff2");
  font-weight: 400; font-style: normal; font-display: swap;
}

:root {
  --gold: #AA9B55;        /* the author's color */
  --gold-deep: #6F6431;   /* rules and numbers on paper */
  --gold-wash: #F1EDDC;   /* family note background */
  --paper: #FFFDF7;
  --ink: #231F17;
  --ink-soft: #564F40;
  --link: #8C1C13;        /* the red of the original links, darkened for reading */

  --text: "Libre Caslon Text", "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  --display: "Libre Caslon Display", "Libre Caslon Text", "Palatino Linotype", Palatino, Georgia, serif;

  --measure: 37rem;
}

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--text);
  font-size: 1.125rem;
  line-height: 1.7;
  font-kerning: normal;
  text-rendering: optimizeLegibility;
}

@media (min-width: 40rem) {
  body { font-size: 1.1875rem; }
}

/* ---------- Links and focus ---------- */

a {
  color: var(--link);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.16em;
}
a:hover { text-decoration-thickness: 2px; }
:focus-visible {
  outline: 3px solid var(--ink);
  outline-offset: 3px;
  border-radius: 2px;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -4rem;
  padding: 0.5rem 1rem;
  background: var(--ink);
  color: var(--paper);
  z-index: 10;
}
.skip-link:focus { top: 1rem; }

.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

/* ---------- Masthead ---------- */

.masthead {
  background: var(--gold);
  color: var(--ink);
}
.masthead-inner {
  max-width: var(--measure);
  margin: 0 auto;
  padding: 2.75rem 1.25rem 0;
}
.site-title {
  display: block;
  font-family: var(--display);
  font-weight: 400;
  font-size: clamp(2.5rem, 9vw, 4.25rem);
  line-height: 0.98;
  letter-spacing: -0.015em;
  color: var(--ink);
  text-decoration: none;
  max-width: 11ch;
}
.site-title:hover { text-decoration: none; }
.is-inner .masthead-inner { padding-top: 1.75rem; }
.is-inner .site-title { font-size: clamp(2rem, 6vw, 2.75rem); max-width: none; }
.is-inner .site-nav ul { margin-top: 1.25rem; }

.site-nav ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1.75rem;
  margin: 2rem 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid rgba(35, 31, 23, 0.35);
}
.site-nav a {
  display: inline-block;
  padding: 0.7rem 0 0.8rem;
  color: var(--ink);
  text-decoration: none;
  font-size: 1.0625rem;
  border-bottom: 3px solid transparent;
}
.site-nav a:hover { border-bottom-color: rgba(35, 31, 23, 0.45); }
.site-nav a[aria-current="page"] { border-bottom-color: var(--ink); }

/* ---------- Page body ---------- */

.page-body {
  max-width: var(--measure);
  margin: 0 auto;
  padding: 3rem 1.25rem 4.5rem;
}

.page-title {
  font-family: var(--display);
  font-weight: 400;
  font-size: clamp(2.1rem, 6vw, 2.9rem);
  line-height: 1.08;
  letter-spacing: -0.01em;
  margin: 0 0 2rem;
  text-wrap: balance;
}

.sequence-position {
  margin: 0 0 0.6rem;
  font-style: italic;
  color: var(--ink-soft);
  font-size: 1rem;
}
.sequence-position a { color: var(--ink-soft); text-decoration-color: rgba(86, 79, 64, 0.4); }

/* the author's text */
.prose > * { margin-top: 0; margin-bottom: 1.15em; }
.prose h2 {
  font-family: var(--display);
  font-weight: 400;
  font-size: 1.75rem;
  line-height: 1.2;
  margin-top: 2.5rem;
}
.prose strong { font-weight: 700; }
.prose img {
  display: block;
  max-width: 100%;
  height: auto;
  margin: 2rem auto;
}
.prose p:has(> img:only-child),
.prose p:has(> a:only-child > img) { margin: 0; }
.prose hr {
  border: 0;
  height: 1px;
  width: 5rem;
  margin: 2.5rem 0;
  background: var(--gold);
}
.prose ul, .prose ol { padding-left: 1.5em; }
.prose li { margin-bottom: 0.5em; padding-left: 0.2em; }
.prose ol > li::marker { color: var(--gold-deep); font-weight: 700; }

/* ---------- Home ---------- */

.home .prose img:first-child { margin-top: 0; }

.contents {
  margin-top: 3.5rem;
  padding-top: 2.5rem;
  border-top: 1px solid var(--gold);
}
.contents h2 {
  font-family: var(--display);
  font-weight: 400;
  font-size: clamp(1.9rem, 5vw, 2.4rem);
  line-height: 1.1;
  margin: 0 0 1.5rem;
}
.contents h3 {
  font-size: 1.1875rem;
  font-weight: 700;
  margin: 2rem 0 0.5rem;
}
.contents h3 a { color: var(--ink); text-decoration: none; }
.contents h3 a:hover { text-decoration: underline; }

/* Numbered lists of essays and reading list items */
.contents-list {
  margin: 0;
  padding-left: 2em;
}
.contents-list li {
  margin: 0 0 0.55rem;
  padding-left: 0.35em;
}
.contents-list li::marker {
  font-family: var(--display);
  color: var(--gold-deep);
}

/* ---------- Family notes ---------- */

.family-note {
  margin: 2.75rem 0 0;
  padding: 1.25rem 1.5rem 0.25rem;
  background: var(--gold-wash);
  border-left: 4px solid var(--gold);
  font-size: 1rem;
  line-height: 1.6;
}
.family-note-label {
  margin: 0 0 0.4rem;
  font-style: italic;
  color: var(--ink-soft);
}
.family-note p { margin: 0 0 1rem; }

/* ---------- Previous and next ---------- */

.sequence-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-top: 3.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--gold);
}
.sequence-nav a { text-decoration: none; display: block; }
.sequence-next { text-align: right; }
.sequence-label {
  display: block;
  font-size: 0.95rem;
  font-style: italic;
  color: var(--ink-soft);
}
.sequence-title {
  display: block;
  font-size: 1.125rem;
  line-height: 1.35;
  color: var(--link);
}
.sequence-nav a:hover .sequence-title { text-decoration: underline; }

@media (max-width: 34rem) {
  .sequence-nav { grid-template-columns: 1fr; }
  .sequence-nav > span:empty { display: none; }
  .sequence-next { text-align: left; }
}

/* ---------- Footer ---------- */

.site-footer {
  background: var(--gold);
  color: var(--ink);
}
.footer-inner {
  max-width: var(--measure);
  margin: 0 auto;
  padding: 1.75rem 1.25rem 2rem;
  font-size: 0.95rem;
}
.footer-inner p { margin: 0; }

/* ---------- Printing (the author wanted to hand out printed essays) ---------- */

@media print {
  body { background: #fff; color: #000; font-size: 11.5pt; line-height: 1.55; }
  .skip-link, .site-nav, .sequence-nav, .site-footer { display: none; }
  .masthead { background: none; }
  .masthead-inner { padding: 0; }
  .site-title { font-size: 14pt; max-width: none; }
  .page-body { max-width: none; padding: 0; }
  .page-title { font-size: 24pt; margin-top: 12pt; }
  a { color: #000; text-decoration: none; }
  .prose img { max-height: 3.5in; width: auto; page-break-inside: avoid; }
  .family-note { background: none; border-left: 2pt solid #999; }
}