body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; line-height: 1.6; color: #333; max-width: 800px; margin: 0 auto; padding: 20px; background-color: #FAFAF5; }
h1 { color: #C0392B; }
h2 { color: #2C3E50; margin-top: 30px; }
a { color: #C0392B; }
.lang-switch { text-align: right; margin-bottom: 20px; }
.lang-btn { background: none; border: none; color: #7F8C8D; cursor: pointer; font-size: 16px; text-decoration: underline; }
.lang-btn.active { color: #C0392B; font-weight: bold; text-decoration: none; }
/* On cache tout par défaut pour éviter le clignotement */
#content-fr, #content-en { display: none; }