/* ============================================================
   nav.css — barre de navigation partagée (espace membre)
   Même look que la home (logo centré, fond translucide, thème,
   menu latéral). Sticky : pas besoin d'offset de contenu.
   Pensé pour fonctionner avec les variables des pages membres.
   ============================================================ */
:root {
  --nav-bg: rgba(28,31,36,0.85);
  /* Grammaire d'animation partagée (durées + courbes) — fluidité cohérente sur tout le site */
  --ease: cubic-bezier(0.22, 1, 0.36, 1);      /* sortie douce, naturelle */
  --ease-inout: cubic-bezier(0.4, 0, 0.2, 1);
  --dur-fast: 180ms; --dur-base: 280ms; --dur-slow: 420ms;
}
html[data-theme="light"] { --nav-bg: rgba(245,239,227,0.9); }

nav.topnav {
  position: sticky; top: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 1.2rem 2rem;
  background: var(--nav-bg);
  backdrop-filter: none;
  border-bottom: 1px solid transparent;
  transition: border-color .3s ease, backdrop-filter .3s ease, box-shadow .3s ease;
}
/* Au scroll (comme la home) : la nav se détache du contenu — bordure + flou + ombre douce */
nav.topnav.scrolled {
  backdrop-filter: blur(12px);
  border-bottom-color: var(--border);
  box-shadow: 0 4px 20px rgba(34,48,42,0.06);
}
nav.topnav .logo {
  position: absolute; left: 50%; transform: translateX(-50%);
  font-family: var(--font-display, 'Newsreader', serif); font-size: 2rem;
  color: var(--text); text-decoration: none; letter-spacing: -0.01em;
}
nav.topnav .logo span { color: var(--accent); }
.nav-left { display: flex; align-items: center; }
.nav-right { display: flex; align-items: center; gap: 1.4rem; margin-left: auto; }
.nav-back { font-family: var(--font-body, 'Nunito Sans', sans-serif); font-size: 0.98rem; font-weight: 700;
  color: var(--text); text-decoration: none; display: inline-flex; align-items: center; gap: 0.4rem;
  padding: 0.5rem 1rem; border: 1.5px solid var(--border); border-radius: 100px; line-height: 1;
  transition: color .2s, background .2s, border-color .2s, transform .2s; }
.nav-back:hover { color: var(--accent); border-color: var(--border-hover, var(--accent)); background: var(--bg3, rgba(255,255,255,0.05)); transform: translateY(-1px); }
@media (max-width: 740px) { .nav-back { font-size: 0.9rem; padding: 0.45rem 0.85rem; } }

.theme-toggle { background: none; border: none; cursor: pointer; color: var(--text);
  display: flex; align-items: center; padding: 0.3rem; border-radius: 6px; transition: color .2s; }
.theme-toggle:hover { color: var(--accent); }
.theme-toggle svg { width: 20px; height: 20px; }

.nav-burger { background: none; border: none; cursor: pointer; color: var(--text);
  display: flex; flex-direction: column; gap: 4px; padding: 0.4rem; }
.nav-burger span { display: block; width: 22px; height: 2px; background: currentColor; border-radius: 2px; transition: background .2s; }
.nav-burger:hover { color: var(--accent); }

.side-overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.5); opacity: 0; visibility: hidden;
  transition: opacity .3s, visibility .3s; z-index: 200; }
.side-overlay.open { opacity: 1; visibility: visible; }
.side-menu { position: fixed; top: 0; right: 0; bottom: 0; width: 320px; max-width: 86vw;
  background: var(--bg2); border-left: 1px solid var(--border); transform: translateX(100%);
  transition: transform .3s ease; z-index: 201; padding: 1.4rem 1.6rem; display: flex; flex-direction: column;
  box-shadow: -12px 0 40px rgba(0,0,0,0.25); }
.side-menu.open { transform: translateX(0); }
.side-close { align-self: flex-end; background: none; border: none; color: var(--text); font-size: 1.5rem;
  line-height: 1; cursor: pointer; padding: 0.2rem 0.4rem; }
.side-close:hover { color: var(--accent); }
.side-menu nav { display: flex; flex-direction: column; margin-top: 0.8rem; }
.side-menu nav a { display: flex; align-items: center; gap: 0.9rem; color: var(--text); text-decoration: none;
  white-space: nowrap;
  font-family: var(--font-display, 'Newsreader', serif); font-size: 1.05rem; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.04em;
  padding: 0.8rem 0.7rem; border-bottom: 1px solid var(--border); border-radius: 9px;
  opacity: 0; transform: translateX(16px);
  transition: opacity .35s ease, transform .35s ease, color .2s ease, background .2s ease, padding-left .2s ease; }
.side-menu nav a svg { width: 22px; height: 22px; flex-shrink: 0; color: var(--accent); transition: transform .2s ease; }
.side-menu nav a:hover { color: var(--accent); background: var(--bg3); padding-left: 1.1rem; }
.side-menu nav a:hover svg { transform: scale(1.18); }
.side-menu nav a.current { color: var(--accent); background: var(--bg3); }
.side-menu nav a.minor { font-family: var(--font-body, 'Nunito Sans', sans-serif); font-size: 0.82rem; font-weight: 500;
  color: var(--muted); border-bottom: none; padding: 0.55rem 0.7rem; letter-spacing: 0.05em; }
.side-menu nav a.minor svg { width: 16px; height: 16px; }
.side-menu nav .side-sep { height: 1rem; }
.side-menu.open nav a { opacity: 1; transform: translateX(0); }
.side-menu.open nav a:nth-of-type(1) { transition-delay: .04s; }
.side-menu.open nav a:nth-of-type(2) { transition-delay: .09s; }
.side-menu.open nav a:nth-of-type(3) { transition-delay: .14s; }
.side-menu.open nav a:nth-of-type(4) { transition-delay: .19s; }
.side-menu.open nav a:nth-of-type(5) { transition-delay: .24s; }
.side-menu.open nav a:nth-of-type(6) { transition-delay: .29s; }
.side-menu.open nav a:nth-of-type(7) { transition-delay: .34s; }
@media (prefers-reduced-motion: reduce) { .side-menu nav a { transition: none; opacity: 1; transform: none; } }

/* Mobile : logo à gauche (cohérent avec la home), barre resserrée */
@media (max-width: 740px) {
  nav.topnav { padding: 0.8rem 1rem; gap: 0.6rem; }
  nav.topnav .logo { position: static; left: auto; transform: none; font-size: 1.5rem; flex: 0 0 auto; }
  .nav-left, .nav-right { flex: 0 0 auto; }
  .nav-back { white-space: nowrap; }
  .nav-right { gap: 0.8rem; }
}
@media (max-width: 400px) {
  nav.topnav .logo { font-size: 1.3rem; }
  .nav-back { font-size: 0.82rem; padding: 0.4rem 0.7rem; }
}

/* ============================================================
   Refonte — Espace membre en base claire (alternance façon FLY).
   Texture à pois sur le fond crème ; particules forêt masquées
   (elles juraient sur le clair — le forêt revient en accents).
   ============================================================ */
html[data-theme="light"] body {
  background-image: radial-gradient(rgba(34,48,42,0.05) 1px, transparent 1px);
  background-size: 22px 22px;
}
html[data-theme="light"] .member-particles,
html[data-theme="light"] .np-particles { display: none; }

/* Accroches manuscrites (Caveat) façon FLY : les petites « eyebrow »
   en capitales deviennent des notes manuscrites chaleureuses. */
html[data-theme="light"] .eyebrow,
html[data-theme="light"] .module-step {
  font-family: 'Caveat', cursive;
  text-transform: none;
  letter-spacing: 0;
  font-weight: 600;
  line-height: 1.1;
  color: var(--accent2, var(--accent));
}
html[data-theme="light"] .eyebrow { font-size: 1.8rem; }
html[data-theme="light"] .module-step { font-size: 1.45rem; }