/* ===========================
   HEADER — DELUXE 2026
=========================== */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(10, 6, 18, 0.55);
  backdrop-filter: blur(22px) saturate(1.5);
  -webkit-backdrop-filter: blur(22px) saturate(1.5);
  border-bottom: 1px solid transparent;
  transition: background var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.site-header.scrolled {
  background: rgba(10, 6, 18, 0.9);
  border-bottom-color: var(--border);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  min-height: 76px;
}

.site-logo {
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
  color: var(--text-primary);
  z-index: 1001;
}

.site-logo:hover { color: var(--text-primary); }

.site-nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 4px;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid transparent;
}

.site-header.scrolled .nav-menu {
  border-color: var(--border);
}

.nav-menu a {
  display: block;
  padding: 8px 16px;
  border-radius: var(--radius-full);
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 500;
  transition: color var(--transition), background var(--transition);
}

.nav-menu a:hover,
.nav-menu .current-menu-item > a,
.nav-menu .current_page_item > a {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.06);
}

.nav-cta {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: 16px;
}

.nav-cta .btn-primary {
  padding: 10px 20px;
  font-size: 13px;
}

.nav-cta .btn-ghost {
  padding: 10px 16px;
  font-size: 13px;
}

/* Language toggle */
.lang-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  height: 36px;
  padding: 0 12px;
  border-radius: var(--radius-full);
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-secondary);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  transition: color var(--transition), border-color var(--transition), background var(--transition), transform var(--transition);
}

.lang-toggle:hover {
  color: var(--text-primary);
  border-color: var(--border-glow);
  background: rgba(124, 58, 237, 0.1);
  transform: translateY(-1px);
}

body.lang-en .lang-toggle {
  border-color: var(--border-glow);
  color: var(--violet-light);
}

/* Hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  transition: background var(--transition);
  z-index: 1001;
}

.nav-toggle:hover { background: rgba(255, 255, 255, 0.06); }

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: currentColor;
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
  margin-inline: auto;
}

.nav-toggle.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.is-open span:nth-child(2) { opacity: 0; }
.nav-toggle.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

body:not(.error404) #main-content { padding-top: 76px; }

/* Mobile */
@media (max-width: 1024px) {
  .nav-cta .btn-ghost { display: none; }
}

@media (max-width: 768px) {
  .nav-toggle { display: flex; }

  .site-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    flex-direction: column;
    align-items: stretch;
    justify-content: center;
    gap: 32px;
    padding: 100px 28px 48px;
    background: rgba(10, 6, 18, 0.98);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: opacity 0.35s ease, visibility 0.35s ease, transform 0.35s ease;
  }

  .site-nav.is-open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }

  .nav-menu {
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    padding: 0;
    background: none;
    border: none;
  }

  .nav-menu a {
    padding: 16px 20px;
    font-size: 18px;
    font-family: var(--font-display);
    font-weight: 600;
    border-radius: var(--radius-md);
    border: 1px solid transparent;
  }

  .nav-menu a:hover {
    border-color: var(--border);
    background: rgba(255, 255, 255, 0.04);
  }

  .nav-cta {
    flex-direction: column;
    margin-left: 0;
    gap: 12px;
  }

  .nav-cta .lang-toggle {
    width: 100%;
    height: 44px;
    font-size: 13px;
  }

  .nav-cta .btn-ghost { display: inline-flex; width: 100%; justify-content: center; }
  .nav-cta .btn { width: 100%; padding: 14px 24px; font-size: 15px; }
}

@media (max-width: 480px) {
  .header-inner { min-height: 68px; }
  body:not(.error404) #main-content { padding-top: 68px; }
}