/*
 * nav.css — Barre de navigation principale
 * ══════════════════════════════════════════
 * Navigation sticky en haut de page.
 * Logo à gauche, liens à droite, bouton Contact mis en avant.
 *
 * Pour modifier la hauteur de la nav, changer --nav-height
 * et mettre à jour les calc(100vh - ...) dans les autres fichiers CSS.
 */

nav {
  position: sticky;
  top: 0;
  z-index: 100;
  height: 120px;                        /* Hauteur de la barre */
  background: var(--white);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 1px 8px rgba(0,0,0,0.05);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 40px 0 0;
}

/* Logo cliquable (pointe vers Accueil) */
.nav-logo {
  display: flex;
  align-items: center;
  height: 100%;
  padding: 0 28px;
  cursor: pointer;
  text-decoration: none;
  flex-shrink: 0;
}

.nav-logo img {
  height: 86px;    /* Taille du logo — ajuster si nécessaire */
  width: auto;
  display: block;
}

/* Liste des liens de navigation */
.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
  list-style: none;
}

.nav-links li a {
  font-size: 13px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--muted);
  text-decoration: none;
  padding: 10px 18px;
  border-radius: 3px;
  cursor: pointer;
  transition: color 0.2s;
}

.nav-links li a:hover        { color: var(--dark); }
.nav-links li a.active       { color: var(--blue); font-weight: 600; background: var(--blue-light); }

/* Bouton "Contact" (CTA) — style différencié */
.nav-links li.nav-cta a             { background: var(--blue); color: var(--white); font-weight: 600; padding: 11px 22px; }
.nav-links li.nav-cta a:hover       { background: var(--blue-mid); color: var(--white); }
.nav-links li.nav-cta a.active      { background: var(--blue); color: var(--white); }

/* ── Hamburger (masqué sur desktop) ────────────────────────────────────── */
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  margin-right: 16px;
}

.nav-hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--dark);
  transition: all 0.2s;
}

/* ── Responsive ≤ 768px ─────────────────────────────────────────────────── */
@media (max-width: 768px) {
  nav {
    height: 72px;
    padding: 0;
    flex-wrap: wrap;
  }

  .nav-logo {
    padding: 0 20px;
  }

  .nav-logo img {
    height: 54px;
  }

  .nav-hamburger {
    display: flex;
  }

  .nav-links {
    display: none;
    flex-direction: column;
    width: 100%;
    background: var(--white);
    border-top: 1px solid var(--border);
    padding: 12px 0;
    position: absolute;
    top: 72px;
    left: 0;
    z-index: 200;
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links li a {
    display: block;
    padding: 14px 24px;
    border-radius: 0;
  }

  .nav-links li.nav-cta {
    padding: 12px 16px;
  }

  .nav-links li.nav-cta a {
    display: block;
    text-align: center;
  }
}