* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 15px;
  line-height: 1.7;
  color: #1a1a1a;
  background: #fff;
}

/* ── LANG BAR ── */
.lang-bar {
  position: sticky;
  top: 0;
  z-index: 10;
  background: #fff;
  border-bottom: 1px solid #e5e5e5;
  padding: 10px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.lang-bar span {
  font-size: 14px;
  font-weight: 600;
  color: #111;
}

.lang-btns {
  display: flex;
  gap: 6px;
}

.lang-btn {
  padding: 5px 16px;
  font-size: 13px;
  font-family: inherit;
  border: 1px solid #d0d0d0;
  border-radius: 6px;
  background: #fff;
  color: #555;
  cursor: pointer;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}

.lang-btn.active {
  background: #111;
  color: #fff;
  border-color: #111;
}

/* ── MAIN ── */
main {
  max-width: 720px;
  margin: 0 auto;
  padding: 48px 24px 80px;
}

.page-title {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 4px;
}

.page-date {
  font-size: 13px;
  color: #888;
  margin-bottom: 36px;
}

.intro {
  font-size: 15px;
  color: #444;
  margin-bottom: 40px;
  padding-bottom: 32px;
  border-bottom: 1px solid #e5e5e5;
}

/* ── SECTIONS ── */
section {
  margin-bottom: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid #f0f0f0;
}

section:last-child {
  border-bottom: none;
}

h2 {
  font-size: 17px;
  font-weight: 600;
  color: #111;
  margin-bottom: 12px;
}

h3 {
  font-size: 14px;
  font-weight: 600;
  color: #333;
  margin: 16px 0 8px;
}

p {
  color: #444;
  font-size: 14.5px;
  margin-bottom: 10px;
}

p:last-child {
  margin-bottom: 0;
}

ul {
  list-style: none;
  padding: 0;
  margin: 8px 0;
}

ul li {
  position: relative;
  padding: 5px 0 5px 16px;
  font-size: 14.5px;
  color: #444;
}

ul li::before {
  content: '–';
  position: absolute;
  left: 0;
  color: #aaa;
}

strong {
  color: #222;
}

a {
  color: #1a1a1a;
}

.note {
  background: #f7f7f7;
  border-left: 3px solid #ccc;
  padding: 12px 16px;
  border-radius: 0 6px 6px 0;
  font-size: 14px;
  color: #555;
  margin: 12px 0;
}

/* ── LANG VISIBILITY ── */
[data-lang="en"] {
  display: none;
}

body.en [data-lang="fr"] {
  display: none;
}

body.en [data-lang="en"] {
  display: revert;
}

/* ── RESPONSIVE ── */
@media (max-width: 480px) {
  main {
    padding: 32px 16px 60px;
  }

  .page-title {
    font-size: 22px;
  }
}