/* ═══════════════════════════════════════════════════════════════════════
   Connect'Academia — Navbar site unifiée (.ca-nav)
   Pilule flottante translucide — même style que le hub Orientation.
   Autonome : aucune dépendance à style.css, tokens design système inline.
   ═══════════════════════════════════════════════════════════════════════ */

.ca-nav {
  --ca-purple:       #8B52FA;
  --ca-purple-hover: #9D6EFB;
  --ca-purple-deep:  #7440D9;
  --ca-ink:          #1A1A1A;
  --ca-ink-2:        #4A4A4A;
  --ca-ease:         cubic-bezier(0.2, 0.8, 0.2, 1);

  position: absolute;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  width: calc(100% - 40px);
  max-width: 1100px;
  z-index: 90;
  box-sizing: border-box;
  padding: 8px 16px;
  border: 1px solid rgba(140, 82, 255, 0.25);
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 4px 20px rgba(139, 82, 250, 0.08),
              0 8px 32px rgba(139, 82, 250, 0.05);
  font-family: 'Montserrat', system-ui, sans-serif;
  transition: background 300ms var(--ca-ease), box-shadow 300ms var(--ca-ease);
}
.ca-nav *, .ca-nav *::before, .ca-nav *::after { box-sizing: border-box; }

/* État scrollé : pilule fixée, verre plus opaque pour rester lisible */
.ca-nav.is-fixed {
  position: fixed;
  background: rgba(255, 255, 255, 0.78);
  backdrop-filter: blur(20px) saturate(1.4);
  -webkit-backdrop-filter: blur(20px) saturate(1.4);
  box-shadow: 0 8px 28px rgba(139, 82, 250, 0.12),
              0 2px 8px rgba(26, 26, 26, 0.06);
  animation: ca-nav-slide-in 400ms var(--ca-ease);
}
@keyframes ca-nav-slide-in {
  from { transform: translateX(-50%) translateY(-110%); opacity: 0; }
  to   { transform: translateX(-50%) translateY(0);     opacity: 1; }
}

.ca-nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

/* ── Logo officiel (rotation continue, pause au survol — comme le hub) ── */
.ca-nav__logo { display: flex; align-items: center; flex: none; }
.ca-nav__logo img {
  width: 56px;
  height: auto;
  display: block;
  animation: ca-nav-spin 3s linear infinite;
}
.ca-nav__logo img:hover { animation-play-state: paused; }
@keyframes ca-nav-spin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }

/* ── Liens (desktop) ──────────────────────────────────────────────────── */
.ca-nav__list {
  display: flex;
  align-items: center;
  gap: 44px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.ca-nav__link {
  position: relative;
  display: block;
  padding: 18px 0;
  font-size: 15px;
  font-weight: 500;
  color: var(--ca-ink);
  text-decoration: none;
  transition: color 200ms var(--ca-ease);
}
.ca-nav__link:hover,
.ca-nav__link:focus-visible { color: var(--ca-purple); }
.ca-nav__link::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 8px;
  width: 5px;
  height: 5px;
  border-radius: 999px;
  background: var(--ca-purple);
  transform: translateX(-50%) scale(0);
  transition: transform 200ms var(--ca-ease);
}
.ca-nav__link:hover::after,
.ca-nav__link.is-active::after { transform: translateX(-50%) scale(1); }
.ca-nav__link.is-active { color: var(--ca-purple); font-weight: 600; }

/* ── Actions (CTA Connexion + burger) ─────────────────────────────────── */
.ca-nav__actions { display: flex; align-items: center; gap: 15px; flex: none; }

.ca-nav__cta {
  display: none;
  align-items: center;
  gap: 7px;
  padding: 10px 24px;
  border-radius: 8px;
  background: var(--ca-purple);
  color: #fff;
  font-family: inherit;
  font-size: 15px;
  font-weight: 500;
  text-decoration: none;
  transition: background 200ms var(--ca-ease), transform 120ms ease-out, box-shadow 200ms var(--ca-ease);
}
.ca-nav__cta svg { width: 17px; height: 17px; flex: none; }
.ca-nav__cta:hover,
.ca-nav__cta:focus-visible {
  background: var(--ca-purple-hover);
  box-shadow: 0 0 24px rgba(139, 82, 250, 0.35);
}
.ca-nav__cta:active { background: var(--ca-purple-deep); transform: scale(0.98); }

.ca-nav__burger,
.ca-nav__close {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  padding: 0;
  border: none;
  background: none;
  color: var(--ca-ink);
  cursor: pointer;
  transition: color 200ms var(--ca-ease);
}
.ca-nav__burger svg, .ca-nav__close svg { width: 26px; height: 26px; }
.ca-nav__burger:hover, .ca-nav__close:hover { color: var(--ca-purple); }

/* ── Menu mobile off-canvas (fond blanc plein, comme le hub) ──────────── */
.ca-nav__menu-head {
  display: none;
  align-items: center;
  justify-content: space-between;
  gap: 15px;
  padding: 20px;
  border-bottom: 2px solid #E5E5E5;
  background: #fff;
}
.ca-nav__menu-head .ca-nav__logo img { width: 64px; animation: none; }
.ca-nav__close {
  background: #fff;
  border-radius: 50%;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.06);
}

.ca-nav__overlay {
  position: fixed;
  inset: 0;
  z-index: -1;
  background: rgba(0, 0, 0, 0.8);
  opacity: 0;
  pointer-events: none;
  transition: opacity 250ms ease;
}

@media (max-width: 1199px) {
  .ca-nav__menu {
    position: fixed;
    top: 0;
    left: -320px;
    width: 100%;
    max-width: 320px;
    height: 100vh;
    height: 100dvh;
    background: #fff;
    visibility: hidden;
    transition: transform 250ms cubic-bezier(0.6, -0.28, 0.735, 0.045), visibility 0s 250ms;
    z-index: 95;
  }
  .ca-nav__menu.is-open {
    transform: translateX(320px);
    visibility: visible;
    transition: transform 500ms cubic-bezier(0.175, 0.885, 0.32, 1.275), visibility 0s;
    box-shadow: 4px 0 20px rgba(0, 0, 0, 0.15), 0 0 40px rgba(0, 0, 0, 0.1);
    border-right: 1px solid #E5E5E5;
  }
  .ca-nav__menu-head { display: flex; }
  .ca-nav__list { display: block; padding: 20px; }
  .ca-nav__link {
    padding: 12px 0;
    font-size: 15px;
    color: var(--ca-ink);
    border-bottom: 1px solid #F0F0F0;
  }
  .ca-nav__link::after { display: none; }
  .ca-nav__overlay.is-open {
    opacity: 1;
    pointer-events: all;
    z-index: 94;
  }
}

@media (min-width: 768px) {
  .ca-nav { padding: 10px 24px; }
  .ca-nav__cta { display: inline-flex; }
}

@media (min-width: 1200px) {
  .ca-nav__burger, .ca-nav__overlay, .ca-nav__menu-head { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  .ca-nav__logo img { animation: none; }
  .ca-nav.is-fixed { animation: none; }
}