/* ═══════════════════════════════════════════════════════════════
   NAV.CSS — Announcement bar + Navigation principale
   ═══════════════════════════════════════════════════════════════ */

/* ── ANNOUNCEMENT BAR ──────────────────────────────────────── */
@keyframes gradient-shift {
  0%   { background-position: 0% 50%; }
  50%  { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}
.announcement-bar {
  position: relative; z-index: 1000;
  background: linear-gradient(90deg, #003B7C 0%, #006DE5 50%, #2988F1 100%);
  background-size: 200% 100%;
  animation: gradient-shift 6s ease infinite;
  padding: 0.55rem 1rem; text-align: center;
}
.announcement-bar__inner {
  display: flex; align-items: center; justify-content: center; gap: 0.75rem;
  max-width: 1280px; margin: 0 auto;
}
.announcement-bar__badge {
  display: inline-flex; align-items: center; gap: 0.3rem;
  background: rgba(255,255,255,0.2); border: 1px solid rgba(255,255,255,0.3);
  border-radius: 999px; padding: 0.15rem 0.6rem;
  font-size: 0.7rem; font-weight: 700; letter-spacing: 0.07em;
  color: #fff; text-transform: uppercase;
}
.announcement-bar__text { color: rgba(255,255,255,0.95); font-size: var(--text-sm); font-weight: 500; }
.announcement-bar__text strong { color: #fff; font-weight: 700; }
.announcement-bar__link {
  display: inline-flex; align-items: center; gap: 0.4rem;
  padding: 0.3rem 0.875rem 0.3rem 0.75rem;
  background: rgba(255,255,255,0.15); border: 1px solid rgba(255,255,255,0.3);
  border-radius: 9999px; color: #fff; font-size: var(--text-sm); font-weight: 600;
  text-decoration: none; white-space: nowrap;
  transition: background 0.2s, border-color 0.2s, transform 0.15s;
}
.announcement-bar__link:hover { background: rgba(255,255,255,0.25); border-color: rgba(255,255,255,0.55); transform: translateX(2px); }
.announcement-bar__link svg { transition: transform 0.15s; }
.announcement-bar__link:hover svg { transform: translateX(2px); }
.announcement-bar__close {
  position: absolute; right: 1rem; top: 50%; transform: translateY(-50%);
  background: none; border: none; color: rgba(255,255,255,0.7);
  cursor: pointer; padding: 0.25rem; font-size: 1rem; line-height: 1; transition: color 0.15s;
}
.announcement-bar__close:hover { color: #fff; }
.announcement-bar.hidden { display: none; }

/* ── NAVIGATION ────────────────────────────────────────────── */
@keyframes fadeIn {
  from { opacity: 0; transform: translateX(-50%) translateY(-4px); }
  to   { opacity: 1; transform: translateX(-50%) translateY(0); }
}
@keyframes slideInDown {
  from { opacity: 0; transform: translateY(-8px); }
  to   { opacity: 1; transform: translateY(0); }
}

.nav {
  position: sticky; top: 0; z-index: 999;
  height: var(--nav-height);
  background: #ffffff;
  backdrop-filter: blur(0px); -webkit-backdrop-filter: blur(0px);
  border-bottom: 1px solid transparent;
  transition: background 0.3s ease, backdrop-filter 0.3s ease, -webkit-backdrop-filter 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}
.nav.scrolled {
  background: rgba(255,255,255,0.05);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.nav > .container { height: 100%; }
.nav__inner {
  height: 100%; display: flex; align-items: center;
  justify-content: space-between; gap: var(--space-xl);
}

/* Logo */
.nav__logo { flex-shrink: 0; display: flex; align-items: center; position: relative; }
.nav__logo img { height: 32px; width: auto; }
.nav__logo .logo-color { opacity: 1; transition: opacity 0.3s ease; }
.nav__logo .logo-white {
  position: absolute; top: 50%; left: 0; transform: translateY(-50%);
  opacity: 0; transition: opacity 0.3s ease; pointer-events: none;
}
.nav.dark-zone .logo-color { opacity: 0; }
.nav.dark-zone .logo-white { opacity: 1; }

/* Nav links */
.nav__links { display: flex; align-items: center; gap: 0.25rem; }
.nav__link {
  display: flex; align-items: center; gap: 0.3rem;
  padding: 0.45rem 0.85rem; border-radius: var(--radius-md);
  font-family: var(--font-display); font-size: var(--text-sm); font-weight: 500;
  color: var(--color-tertiary); transition: all var(--transition-fast);
  position: relative;
}
.nav__link:hover { color: var(--color-dark); background: var(--color-light); }
.nav__link.active { color: var(--color-primary); background: var(--color-primary-pale); }
.nav__link svg { width: 14px; height: 14px; transition: transform var(--transition-fast); }
.nav__link:hover svg { transform: rotate(180deg); }

/* Dropdown */
.nav__dropdown { position: relative; }
.nav__dropdown-menu {
  display: none; position: absolute; top: 100%; left: 50%;
  transform: translateX(-50%); padding-top: 8px;
  min-width: 200px; animation: fadeIn 0.15s ease;
}
.nav__dropdown-menu::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 8px; }
.nav__dropdown-menu-inner {
  background: var(--color-white); border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg); box-shadow: var(--shadow-xl); padding: 0.5rem;
}
.nav__dropdown:hover .nav__dropdown-menu { display: block; }
.nav__dropdown-item {
  display: block; padding: 0.55rem 0.85rem; border-radius: var(--radius-md);
  font-size: var(--text-sm); color: var(--color-tertiary); transition: all var(--transition-fast);
}
.nav__dropdown-item:hover { background: var(--color-light); color: var(--color-dark); }
.nav__dropdown-item strong {
  display: block; font-weight: 600; color: var(--color-dark);
  font-size: var(--text-sm); margin-bottom: 0.1rem;
}
.nav__dropdown-item span { font-size: var(--text-xs); color: var(--color-medium); }

/* Nav actions */
.nav__actions { display: flex; align-items: center; gap: var(--space-sm); }
.nav__login {
  font-family: var(--font-display); font-size: var(--text-sm); font-weight: 500;
  color: var(--color-tertiary); padding: 0.45rem 0.85rem;
  border-radius: var(--radius-md); transition: all var(--transition-fast); white-space: nowrap;
}
.nav__login:hover { color: var(--color-dark); background: var(--color-light); }

/* Language selector */
.nav__lang {
  display: flex; align-items: center; gap: 0.3rem;
  font-family: var(--font-display); font-size: var(--text-xs); font-weight: 600;
  color: var(--color-tertiary); padding: 0.35rem 0.55rem;
  border-radius: var(--radius-md); border: 1px solid var(--color-border);
  transition: all var(--transition-fast); white-space: nowrap;
  letter-spacing: 0.03em; margin-left: 0.25rem;
}
.nav__lang:hover { color: var(--color-dark); border-color: var(--color-medium); background: var(--color-light); }

/* Mobile hamburger */
.nav__hamburger {
  display: none; flex-direction: column; justify-content: center; align-items: center;
  gap: 5px; width: 40px; height: 40px; background: none; border: none; cursor: pointer; padding: 4px;
}
.nav__hamburger span {
  display: block; width: 22px; height: 2px;
  background: var(--color-dark); border-radius: 2px; transition: all var(--transition-base);
}
.nav__hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav__hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav__hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* Mobile menu */
.nav__mobile {
  display: none; position: fixed; top: var(--nav-height); left: 0; right: 0;
  background: var(--color-white); border-bottom: 1px solid var(--color-border-light);
  padding: 1rem; box-shadow: var(--shadow-lg); z-index: 998;
  animation: slideInDown 0.25s ease;
}
.nav__mobile.open { display: block; }
.nav__mobile-links { display: flex; flex-direction: column; gap: 0.25rem; margin-bottom: 1rem; }
.nav__mobile-link {
  display: block; padding: 0.75rem 1rem; border-radius: var(--radius-md);
  font-family: var(--font-display); font-size: var(--text-base); font-weight: 500;
  color: var(--color-dark); transition: background var(--transition-fast);
}
.nav__mobile-link:hover { background: var(--color-light); }
.nav__mobile-actions {
  display: flex; flex-direction: column; gap: 0.5rem;
  padding-top: 1rem; border-top: 1px solid var(--color-border-light);
}
.nav__mobile-actions .btn { width: 100%; justify-content: center; }

/* ── RESPONSIVE ────────────────────────────────────────────── */
@media (max-width: 900px) {
  .nav__links, .nav__login, .nav__actions .btn { display: none; }
  .nav__hamburger { display: flex; }
}
@media (max-width: 600px) {
  .announcement-bar__text { font-size: 0.75rem; }
  .announcement-bar__link { display: none; }
}