#site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  height: var(--header-h);
  background: var(--bg-2);
  border-bottom: 1px solid var(--border);
  transition: border-bottom-color 0.3s var(--ease), background 0.3s var(--ease);
}

/* Hero mode: transparent over dark hero */
#site-header.header-hero-mode {
  background: transparent;
  border-bottom-color: rgba(255,255,255,0.1);
}
#site-header.header-hero-mode.scrolled {
  background: var(--bg-2);
  border-bottom-color: var(--red);
}
#site-header.scrolled:not(.header-hero-mode) {
  border-bottom-color: var(--red);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  padding: 0 2rem;
  max-width: var(--max-width);
  margin: 0 auto;
}

/* Logo */
.header-logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}
.header-logo img {
  height: 44px;
  width: auto;
}

/* Nav */
.header-nav {
  display: flex;
  align-items: center;
  gap: 0.1rem;
}
.nav-link {
  padding: 0.5rem 0.85rem;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: color 0.22s, background 0.22s;
  white-space: nowrap;
}
.nav-link:hover { color: var(--text); background: var(--bg-3); }
.nav-link.active { color: var(--red); }

/* Hero mode: white nav links */
#site-header.header-hero-mode .nav-link {
  color: rgba(255,255,255,0.72);
}
#site-header.header-hero-mode .nav-link:hover {
  color: #fff;
  background: rgba(255,255,255,0.08);
}
#site-header.header-hero-mode .nav-link.active {
  color: var(--red);
}
#site-header.header-hero-mode.scrolled .nav-link {
  color: var(--text-muted);
}
#site-header.header-hero-mode.scrolled .nav-link:hover {
  color: var(--text);
  background: var(--bg-3);
}

/* CTA */
.header-cta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.header-phone {
  font-size: 0.825rem;
  font-weight: 500;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 0.4rem;
  transition: color 0.22s;
}
.header-phone:hover { color: var(--red); }

/* Hero mode: white phone */
#site-header.header-hero-mode .header-phone {
  color: rgba(255,255,255,0.72);
}
#site-header.header-hero-mode .header-phone:hover { color: #fff; }
#site-header.header-hero-mode.scrolled .header-phone { color: var(--text-muted); }

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px; height: 36px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.hamburger span {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--text);
  transform-origin: center;
  transition: transform 0.35s var(--ease), opacity 0.35s, width 0.35s;
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; width: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

#site-header.header-hero-mode .hamburger span { background: #fff; }
#site-header.header-hero-mode.scrolled .hamburger span { background: var(--text); }

/* Mobile menu */
.mobile-menu {
  display: none;
  position: fixed;
  inset: 0;
  top: var(--header-h);
  background: var(--bg-2);
  border-top: 3px solid var(--red);
  z-index: 999;
  flex-direction: column;
  padding: 1.5rem;
  gap: 0;
  overflow-y: auto;
  opacity: 0;
  transform: translateY(-8px);
  pointer-events: none;
  transition: opacity 0.3s var(--ease), transform 0.3s var(--ease);
}
.mobile-menu.open {
  display: flex;
  opacity: 1;
  transform: translateY(0);
  pointer-events: all;
}
.mobile-menu .nav-link {
  font-size: 1.05rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--border);
  color: var(--text);
  background: none;
}
.mobile-menu .nav-link:hover { color: var(--red); }
.mobile-menu-cta {
  margin-top: 2rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.mobile-menu-phone {
  text-align: center;
  color: var(--text-muted);
  font-size: 0.95rem;
  padding: 0.75rem;
}

/* Mobile menu links must stay visible regardless of hero-mode */
#site-header.header-hero-mode .mobile-menu .nav-link {
  color: var(--text);
  background: none;
}
#site-header.header-hero-mode .mobile-menu .nav-link:hover {
  color: var(--red);
}
#site-header.header-hero-mode .mobile-menu .nav-link.active {
  color: var(--red);
}

@media (max-width: 900px) {
  .header-nav, .header-phone { display: none; }
  .hamburger { display: flex; }
  .header-inner { padding: 0 1.25rem; }
}