:root {
  --bg: #f7f3ea;
  --bg-elev: #fdfaf3;
  --ink: #1c1410;
  --ink-soft: #4a3a2e;
  --accent: #6e1c1c;
  --accent-soft: #a04444;
  --rule: #d8cdb3;
  --shadow: 0 2px 30px rgba(40, 20, 10, 0.06);
  --serif: "EB Garamond", "Garamond", "Times New Roman", serif;
  --display: "Cormorant Garamond", "Garamond", serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--serif);
  background: var(--bg);
  color: var(--ink);
  font-size: 18px;
  line-height: 1.65;
  font-feature-settings: "liga", "kern";
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* --- Masthead --- */
.masthead {
  text-align: center;
  padding: 5rem 0 3rem;
  background: linear-gradient(180deg, #f1e9d5 0%, var(--bg) 100%);
  border-bottom: 1px double var(--rule);
}
.masthead .eyebrow {
  font-family: var(--display);
  letter-spacing: 0.25em;
  text-transform: uppercase;
  font-size: 0.78rem;
  color: var(--accent);
  margin: 0 0 1rem;
}
.masthead h1 {
  font-family: var(--display);
  font-weight: 600;
  font-size: clamp(2.8rem, 6vw, 5rem);
  margin: 0;
  letter-spacing: 0.01em;
}
.masthead .subtitle {
  font-family: var(--display);
  font-size: clamp(1.1rem, 2vw, 1.5rem);
  color: var(--ink-soft);
  margin: 0.6rem 0 0.2rem;
}
.masthead .subtitle-fr {
  font-style: italic;
  font-size: 1rem;
  color: var(--ink-soft);
  margin: 0;
}
.masthead .date {
  font-family: var(--display);
  font-size: 0.95rem;
  color: var(--accent-soft);
  margin-top: 2rem;
  letter-spacing: 0.05em;
}

/* --- Controls --- */
.controls {
  padding: 2rem 1.5rem 0;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 2rem;
  flex-wrap: wrap;
}
.lang-picker {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--display);
}
.lang-picker label {
  letter-spacing: 0.2em;
  text-transform: uppercase;
  font-size: 0.78rem;
  color: var(--accent);
}
.lang-picker select {
  font-family: var(--serif);
  font-size: 1rem;
  padding: 0.45rem 2.2rem 0.45rem 0.9rem;
  border: 1px solid var(--rule);
  background: var(--bg-elev) url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'><path d='M0 0l6 8 6-8z' fill='%236e1c1c'/></svg>") no-repeat right 0.7rem center / 10px;
  appearance: none;
  -webkit-appearance: none;
  color: var(--ink);
  border-radius: 4px;
  cursor: pointer;
  box-shadow: var(--shadow);
}
.lang-picker select:hover { border-color: var(--accent-soft); }

.lang-toggle {
  display: inline-flex;
  background: var(--bg-elev);
  border: 1px solid var(--rule);
  border-radius: 999px;
  padding: 4px;
  box-shadow: var(--shadow);
}
.lang-toggle button {
  background: none;
  border: 0;
  padding: 0.5rem 1.1rem;
  font-family: var(--display);
  font-size: 0.88rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-soft);
  cursor: pointer;
  border-radius: 999px;
  transition: background 0.2s, color 0.2s;
}
.lang-toggle button.active {
  background: var(--accent);
  color: #fbf6e8;
}

/* --- TOC --- */
.toc {
  padding: 2.5rem 1.5rem 0;
}
.toc h2 {
  font-family: var(--display);
  text-align: center;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  font-size: 0.9rem;
  color: var(--accent);
  font-weight: 600;
  margin: 0 0 1.5rem;
}
.toc-list {
  counter-reset: chap;
  list-style: none;
  padding: 0;
  margin: 0 auto;
  max-width: 600px;
}
.toc-list li {
  counter-increment: chap;
  padding: 0.45rem 0;
  border-bottom: 1px dotted var(--rule);
  display: flex;
  align-items: baseline;
  gap: 1rem;
}
.toc-list li::before {
  content: counter(chap, upper-roman) ".";
  font-family: var(--display);
  color: var(--accent);
  font-weight: 600;
  min-width: 2.5rem;
}
.toc-list a {
  color: var(--ink);
  text-decoration: none;
  font-variant: small-caps;
  letter-spacing: 0.05em;
}
.toc-list a:hover { color: var(--accent); }

/* --- Main / chapters --- */
main { padding: 3rem 0 4rem; }

.chapter {
  padding: 3rem 0;
  border-bottom: 1px solid var(--rule);
}
.chapter:last-child { border-bottom: none; }

.chap-titles {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  margin-bottom: 2rem;
}
.chap-titles h2 {
  font-family: var(--display);
  font-weight: 600;
  font-size: clamp(1.5rem, 2.6vw, 2.2rem);
  text-align: center;
  color: var(--accent);
  margin: 0;
  letter-spacing: 0.03em;
  line-height: 1.2;
}
.chap-titles h2::after {
  content: "";
  display: block;
  width: 60px;
  height: 1px;
  background: var(--accent-soft);
  margin: 0.8rem auto 0;
}
.chap-titles h2.la { font-style: italic; }

.row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  margin-bottom: 1.3rem;
  padding-bottom: 1.3rem;
  border-bottom: 1px dotted #e8dfc6;
}
.row:last-child { border-bottom: none; }

.row p {
  margin: 0;
  text-align: justify;
  hyphens: auto;
}
.row .vern { font-style: normal; }
.row .la {
  color: var(--ink-soft);
  font-family: var(--display);
  font-size: 1.05em;
  font-style: italic;
}

/* mode-vern : seul le vernaculaire */
body.mode-vern .row .la,
body.mode-vern .chap-titles h2.la { display: none; }
body.mode-vern .row,
body.mode-vern .chap-titles { grid-template-columns: 1fr; }

/* mode-la : seul le latin */
body.mode-la .row .vern,
body.mode-la .chap-titles h2.vern { display: none; }
body.mode-la .row,
body.mode-la .chap-titles { grid-template-columns: 1fr; }
body.mode-la .row .la {
  font-style: normal;
  color: var(--ink);
  font-size: 1.1em;
}
body.mode-la .chap-titles h2.la { font-style: normal; }

.ref a {
  color: var(--accent);
  text-decoration: none;
  font-size: 0.7em;
}
.ref a:hover { text-decoration: underline; }

/* --- Notes --- */
.notes-list {
  font-size: 0.92rem;
  color: var(--ink-soft);
  padding-left: 1.5rem;
}
.notes-list li {
  padding: 0.3rem 0;
  list-style: none;
  border-bottom: 1px dotted var(--rule);
}
.notes-list li .num {
  color: var(--accent);
  font-weight: 600;
  margin-right: 0.4rem;
}

/* --- Footer --- */
footer {
  background: var(--bg-elev);
  border-top: 1px double var(--rule);
  padding: 3rem 0;
  font-size: 0.88rem;
  color: var(--ink-soft);
  text-align: center;
}
footer a { color: var(--accent); }
footer .small { font-size: 0.78rem; margin-top: 1rem; }

/* --- Responsive --- */
@media (max-width: 800px) {
  body { font-size: 17px; }
  .row, .chap-titles {
    grid-template-columns: 1fr;
    gap: 0.6rem;
  }
  .row .la {
    padding-top: 0.4rem;
    border-top: 1px dotted var(--rule);
  }
  .chap-titles h2.la {
    font-size: 1.1rem;
    padding-top: 0.4rem;
  }
}