/* Header & Navigation */
.header {
  position: fixed;
  top: 0;
  right: 0;
  left: 0;
  height: var(--header-height);
  background: rgba(247, 243, 234, 0.96);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(2, 29, 76, 0.08);
  z-index: var(--z-sticky);
  transition: height var(--transition-base),
              background var(--transition-base),
              box-shadow var(--transition-base),
              border-color var(--transition-base);
}

.header.scrolled {
  height: var(--header-height-scrolled);
  background: rgba(247, 243, 234, 0.99);
  box-shadow: var(--shadow-md);
  border-color: rgba(2, 29, 76, 0.12);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--container-xl);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

@media (max-width: 640px) {
  .header-inner {
    padding: 0 var(--space-4);
  }
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
  text-decoration: none;
}

.logo-mark {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gold-500);
  border-radius: var(--radius-lg);
  color: var(--navy-900);
  font-size: var(--text-xl);
  font-weight: 700;
  font-family: var(--font-display);
  transition: transform var(--transition-base);
}

.logo:hover .logo-mark {
  transform: rotate(6deg) scale(1.05);
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.logo-name {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 800;
  color: var(--navy-900);
  letter-spacing: -0.02em;
}

.logo-tagline {
  font-size: var(--text-xs);
  color: var(--text-tertiary);
  font-weight: 400;
}

@media (max-width: 480px) {
  .logo-tagline {
    display: none;
  }
}

/* Desktop Navigation */
.nav-desktop {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.nav-item {
  position: relative;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  font-size: 15px;
  font-weight: 600;
  font-family: var(--font-display);
  color: rgba(2, 29, 76, 0.82);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.nav-link {
  position: relative;
  border-radius: 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 2px;
  right: var(--space-4);
  left: var(--space-4);
  height: 1px;
  background: var(--gold-500);
  transform: scaleX(0);
  transform-origin: right center;
  transition: transform 200ms cubic-bezier(0.16, 1, 0.3, 1);
}

.nav-link:hover,
.nav-link.active {
  color: var(--navy-900);
  background: transparent;
}

.nav-link:hover::after,
.nav-link.active::after {
  transform: scaleX(1);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 2px;
  right: var(--space-4);
  left: var(--space-4);
  height: 1px;
  background: var(--gold-500);
  border-radius: 0;
}

/* Services dropdown (desktop) */
.nav-item.has-dropdown { position: relative; }
.nav-dropdown-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-secondary);
  background: transparent;
  border: none;
  cursor: pointer;
  font-family: inherit;
  position: relative;
  transition: color 200ms cubic-bezier(0.16, 1, 0.3, 1);
}
.nav-dropdown-btn::after {
  content: '';
  position: absolute;
  bottom: 2px;
  right: var(--space-4);
  left: var(--space-4);
  height: 1px;
  background: var(--gold-500);
  transform: scaleX(0);
  transform-origin: right center;
  transition: transform 200ms cubic-bezier(0.16, 1, 0.3, 1);
}
.nav-dropdown-btn:hover,
.nav-dropdown-btn[aria-expanded="true"] { color: var(--navy-900); }
.nav-dropdown-btn:hover::after,
.nav-dropdown-btn[aria-expanded="true"]::after { transform: scaleX(1); }
.nav-dropdown-btn .caret { width: 14px; height: 14px; transition: transform 200ms; }
.nav-dropdown-btn[aria-expanded="true"] .caret { transform: rotate(180deg); }
.dropdown-panel {
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  width: 320px;
  background: var(--white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-xl);
  padding: var(--space-2);
  z-index: var(--z-dropdown);
}
.dropdown-panel[hidden] { display: none; }
.dropdown-panel .service-row { padding: var(--space-3); border-bottom: 1px solid var(--gray-100); }
.dropdown-panel .service-row:last-child { border-bottom: none; }

/* Mobile services accordion */
.mobile-accordion-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: var(--space-4) var(--space-2);
  font-size: var(--text-base);
  font-weight: 500;
  color: var(--text-primary);
  background: transparent;
  border: none;
  cursor: pointer;
  font-family: inherit;
}
.mobile-accordion-btn .caret { width: 18px; height: 18px; color: var(--text-tertiary); transition: transform 200ms; }
.mobile-accordion-btn[aria-expanded="true"] .caret { transform: rotate(180deg); }
.mobile-accordion-panel { overflow: hidden; max-height: 0; transition: max-height 300ms cubic-bezier(0.16, 1, 0.3, 1); }
.mobile-accordion-panel.open { max-height: 300px; }
.mobile-accordion-panel .mobile-nav-link { padding-right: var(--space-6); font-size: var(--text-sm); color: var(--text-secondary); }

.nav-link .icon {
  width: 18px;
  height: 18px;
  opacity: 0.6;
  transition: opacity var(--transition-fast);
}

.nav-link:hover .icon {
  opacity: 1;
}

/* CTA Button in Header */
.header-cta {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin-right: var(--space-4);
}

@media (max-width: 768px) {
  .header-cta {
    display: none;
  }
}

/* Prevent EN nav overflow on medium screens */
@media (max-width: 1280px) {
  .nav-link { padding: var(--space-2) var(--space-2); font-size: 14px; }
  .header-cta .btn-pill-navy,
  .header-cta .btn-pill-outline { padding: 10px 16px; }
  .header-inner { padding: 0 var(--space-4); }
  .header-cta { gap: var(--space-2); }
}

/* Mobile Menu Button */
.mobile-menu-btn {
  display: none;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: transparent;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  color: var(--navy-900);
  transition: background var(--transition-fast);
}
.mobile-menu-btn span {
  display: block;
  width: 22px;
  height: 2px;
  background: currentColor;
  border-radius: 2px;
}

/* Brand logo image (gold on header navy, text fallback until file exists) */
.logo-img {
  height: 60px;
  width: auto;
  max-width: 230px;
  object-fit: contain;
  display: block;
  flex-shrink: 0;
}
.logo-fallback {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--navy-900);
  border-radius: var(--radius-lg);
  color: var(--gold-500);
  font-size: var(--text-xl);
  font-weight: 700;
  font-family: var(--font-display);
  flex-shrink: 0;
}

/* Real brand logo: black artwork blends into cream via multiply */
.logo-img {
  height: 46px;
}
.logo-img.logo-cream { mix-blend-mode: multiply; }

.mobile-menu-btn:hover {
  background: var(--navy-50);
}

.mobile-menu-btn .icon {
  width: 24px;
  height: 24px;
}

@media (max-width: 768px) {
  .mobile-menu-btn {
    display: flex;
  }
}

/* Mobile Menu Overlay */
.mobile-menu-overlay {
  position: fixed;
  inset: 0;
  background: rgba(2, 29, 76, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  z-index: var(--z-modal);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-slow), visibility var(--transition-slow);
}

.mobile-menu-overlay.open {
  opacity: 1;
  visibility: visible;
}

.mobile-menu {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: 100%;
  max-width: 320px;
  background: var(--white);
  padding: var(--space-8) var(--space-6);
  overflow-y: auto;
  transform: translateX(100%);
  transition: transform var(--motion-duration-slower) var(--motion-easing-spring);
}

.mobile-menu-overlay.open .mobile-menu {
  transform: translateX(0);
}

.mobile-menu-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-8);
  padding-bottom: var(--space-6);
  border-bottom: 1px solid var(--border-light);
}

.mobile-menu-close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: transparent;
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.mobile-menu-close:hover {
  background: var(--navy-50);
  border-color: var(--navy-900);
  color: var(--navy-900);
}

.mobile-nav-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.mobile-nav-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--space-2);
  font-size: var(--text-base);
  font-weight: 500;
  color: var(--text-primary);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.mobile-nav-link:hover,
.mobile-nav-link.active {
  background: var(--navy-50);
  color: var(--navy-900);
}

.mobile-nav-link .icon {
  width: 20px;
  height: 20px;
  color: var(--text-tertiary);
}

.mobile-cta {
  margin-top: var(--space-8);
  padding-top: var(--space-6);
  border-top: 1px solid var(--border-light);
}

.mobile-cta .btn {
  width: 100%;
}

/* Language Switcher */
.lang-switcher {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  background: var(--gray-100);
  border-radius: var(--radius-full);
  padding: var(--space-1);
}

.lang-btn {
  padding: var(--space-1) var(--space-3);
  font-size: var(--text-xs);
  font-weight: 600;
  border-radius: var(--radius-full);
  background: transparent;
  border: none;
  color: var(--text-tertiary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.lang-btn.active {
  background: var(--white);
  color: var(--navy-900);
  box-shadow: var(--shadow-sm);
}

.lang-btn:hover:not(.active) {
  color: var(--text-secondary);
}

/* Header Divider Line Animation */
.header::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--navy-900), var(--gold-500));
  transform: translateX(-50%);
  transition: width var(--transition-slower);
}

.header.scrolled::after {
  width: 100%;
}