/* Layout Styles */

/* Header */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
  z-index: var(--z-fixed);
  transition: all var(--transition-base);
}

.site-header.scrolled {
  box-shadow: var(--shadow-md);
}

.nav-container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: var(--spacing-lg) var(--container-padding);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-brand {
  flex-shrink: 0;
}

.brand-link {
  font-family: var(--font-family-heading);
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  color: var(--color-blue-dark);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.brand-link:hover {
  color: var(--color-blue-gitane);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--spacing-2xl);
}

.nav-menu a {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
  position: relative;
}

.nav-menu a:hover {
  color: var(--color-blue-gitane);
}

.nav-menu a.nav-cta {
  background: var(--color-blue-dark);
  color: white;
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--radius-sm);
  transition: all var(--transition-base);
}

.nav-menu a.nav-cta:hover {
  background: var(--color-blue-gitane);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  padding: var(--spacing-sm);
  cursor: pointer;
}

.mobile-menu-toggle span {
  width: 24px;
  height: 2px;
  background: var(--color-blue-dark);
  transition: all var(--transition-base);
}

.mobile-menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Main Content */
main {
  padding-top: 80px; /* Account for fixed header */
}

/* Footer */
.site-footer {
  background: var(--color-charcoal);
  color: white;
  padding: var(--spacing-4xl) 0 var(--spacing-2xl);
  margin-top: var(--spacing-5xl);
}

.footer-content {
  display: grid;
  grid-template-columns: 2fr 2fr 1fr;
  gap: var(--spacing-3xl);
  margin-bottom: var(--spacing-3xl);
}

.footer-brand h4 {
  font-family: var(--font-family-heading);
  font-size: var(--font-size-2xl);
  margin-bottom: var(--spacing-md);
}

.footer-brand p {
  color: var(--color-blue-light);
  font-size: var(--font-size-base);
}

.footer-offices {
  display: flex;
  gap: var(--spacing-3xl);
}

.office h5 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-md);
  color: var(--color-yellow);
}

.office p {
  font-size: var(--font-size-sm);
  line-height: var(--line-height-relaxed);
  color: var(--color-grey-light-2);
}

.footer-links ul {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.footer-links a {
  color: var(--color-grey-light-2);
  font-size: var(--font-size-sm);
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: white;
}

.footer-bottom {
  padding-top: var(--spacing-2xl);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
}

.footer-bottom p {
  font-size: var(--font-size-sm);
  color: var(--color-blue-light);
}

/* Responsive */
@media (max-width: 768px) {
  .nav-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: white;
    border-bottom: 1px solid var(--color-border);
    flex-direction: column;
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-lg);
  }

  .nav-menu.active {
    display: flex;
  }

  .mobile-menu-toggle {
    display: flex;
  }

  .footer-content {
    grid-template-columns: 1fr;
    gap: var(--spacing-2xl);
  }

  .footer-offices {
    flex-direction: column;
    gap: var(--spacing-xl);
  }
}

@media (min-width: 769px) and (max-width: 1024px) {
  .nav-menu {
    gap: var(--spacing-lg);
  }

  .footer-content {
    grid-template-columns: 1fr 1fr;
  }
}