.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(252, 252, 253, 0.8);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(229, 231, 235, 0.5);
}
.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0;
  height: 80px;
}
.logo { font-size: 1.5rem; font-weight: 600; letter-spacing: -0.03em; color: var(--text-dark); }
.nav-links { 
  display: flex; 
  align-items: center; 
  gap: 2.5rem; 
  font-size: 0.95rem; 
  font-weight: 500; 
  color: var(--text-gray);
  height: 100%;
}
.nav-links a { 
  cursor: pointer; 
  transition: all 0.2s; 
  height: 100%;
  display: flex;
  align-items: center;
  padding: 0 4px;
  position: relative;
  text-decoration: none;
  color: inherit;
}
.nav-links a:hover { color: var(--text-dark); }
.nav-links a.active { 
  color: var(--text-dark); 
  font-weight: 700;
  box-shadow: inset 0 -2px 0 0 var(--blue);
}
.rebuilding-pill { 
  display: flex; 
  align-items: center; 
  gap: 8px; 
  background: white; 
  border: 1px solid var(--border); 
  padding: 12px 24px; 
  font-size: 0.95rem; 
  font-weight: 600; 
  color: var(--text-dark);
  border-radius: 4px;
}
.dot { width: 8px; height: 8px; background: var(--blue); border-radius: 50%; }

/* Mobile hamburger toggle (desktop hidden) */
.nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 4px;
  width: 44px;
  height: 44px;
  padding: 0;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
}
.nav-toggle-bar {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--text-dark);
  border-radius: 2px;
  transition: transform 0.2s, opacity 0.2s;
}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) {
  opacity: 0;
}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.mobile-menu {
  display: none;
  flex-direction: column;
  background: rgba(252, 252, 253, 0.98);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-top: 1px solid rgba(229, 231, 235, 0.6);
  padding: 1rem 1.25rem 1.5rem;
  gap: 0.25rem;
}
.mobile-menu.open {
  display: flex;
}
.mobile-menu a {
  text-decoration: none;
  color: var(--text-gray);
  font-weight: 500;
  font-size: 1rem;
  padding: 0.9rem 0.5rem;
  border-bottom: 1px solid var(--border-light);
}
.mobile-menu a.active {
  color: var(--text-dark);
  font-weight: 700;
}
.mobile-menu-pill {
  display: flex;
  align-items: center;
  gap: 8px;
  background: white;
  border: 1px solid var(--border);
  padding: 10px 16px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-dark);
  border-radius: 4px;
  margin: 1rem 0 0.75rem;
  align-self: flex-start;
}
.mobile-menu-cta {
  width: 100%;
  padding: 14px 24px;
  font-size: 1rem;
}

@media (max-width: 900px) {
  .header-inner { height: 64px; padding: 0 1.25rem; }
  .nav-links { display: none; }
  .nav-toggle { display: inline-flex; }
  .logo img { height: 32px !important; }
}

@media (max-width: 640px) {
  .nav-links a { display: none; }
}