.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 200;
  background: var(--color-primary-dark);
  transition: background var(--ease), box-shadow var(--ease);
}

.site-header.scrolled {
  background: rgba(13,35,56,0.97);
  backdrop-filter: blur(10px);
  box-shadow: 0 2px 24px rgba(0,0,0,0.25);
}

.header-inner {
  height: var(--nav-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.site-logo { display: flex; align-items: center; text-decoration: none; }
.logo-svg { height: 38px; width: auto; color: var(--color-white); }

.main-nav-list {
  display: flex;
  gap: 2.5rem;
  list-style: none;
}

.main-nav-list a {
  color: rgba(255,255,255,0.8);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color var(--ease);
}

.main-nav-list a:hover { color: var(--color-secondary-light); }

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.btn-nav-login {
  background: transparent;
  color: rgba(255,255,255,0.8);
  border: 1px solid rgba(255,255,255,0.3);
  padding: 0.45rem 1.1rem;
  border-radius: 6px;
  font-size: 0.88rem;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  transition: border-color var(--ease), color var(--ease);
}

.btn-nav-login:hover { border-color: rgba(255,255,255,0.7); color: var(--color-white); }

.btn-nav-logout { opacity: 0.65; }
.btn-nav-logout:hover { opacity: 1; }

.btn-nav-cta {
  background: var(--color-secondary);
  color: var(--color-white);
  border: none;
  padding: 0.5rem 1.25rem;
  border-radius: 6px;
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  transition: background var(--ease);
}

.btn-nav-cta:hover { background: var(--color-secondary-light); }

/* Hamburger + mobile menu */
.hamburger {
  display: none;
  background: none;
  border: none;
  color: var(--color-white);
  font-size: 1.4rem;
  cursor: pointer;
  padding: 0.25rem;
}

.mobile-menu {
  display: none;
  position: fixed;
  top: var(--nav-height);
  left: 0;
  right: 0;
  z-index: 190;
  background: rgba(13,35,56,0.98);
  backdrop-filter: blur(10px);
  padding: 1.5rem 1.5rem;
  flex-direction: column;
  gap: 1.25rem;
  border-top: 1px solid rgba(255,255,255,0.1);
}

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

.mobile-nav-list { list-style: none; display: flex; flex-direction: column; gap: 1.25rem; }
.mobile-nav-list a { color: rgba(255,255,255,0.85); text-decoration: none; font-size: 1rem; font-weight: 500; }

.mobile-menu-divider { height: 1px; background: rgba(255,255,255,0.1); }

.mobile-menu .btn-nav-login,
.mobile-menu .btn-nav-cta {
  justify-content: center;
  padding: 0.65rem;
}

@media (max-width: 900px) {
  .main-nav-list,
  .header-actions { display: none; }
  .hamburger { display: block; }
}

/* Footer */
.site-footer {
  background: #070f18;
  padding: 4rem var(--container-padding) 0;
  color: rgba(255,255,255,0.55);
}

.footer-inner {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 3rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer-col h3 {
  color: rgba(255,255,255,0.85);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 1.1rem;
}

.footer-brand-col .logo-svg { height: 30px; opacity: 0.85; margin-bottom: 1rem; }
.footer-tagline { font-size: 0.85rem; line-height: 1.6; max-width: 280px; margin-bottom: 1.25rem; }

.footer-social-links { display: flex; gap: 0.75rem; }
.footer-social-links a {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.7);
  text-decoration: none;
  transition: background var(--ease), color var(--ease);
}
.footer-social-links a:hover { background: var(--color-secondary); color: #FFFFFF; }

.footer-nav-list { list-style: none; display: flex; flex-direction: column; gap: 0.75rem; }
.footer-nav-list a { color: rgba(255,255,255,0.55); text-decoration: none; font-size: 0.88rem; transition: color var(--ease); }
.footer-nav-list a:hover { color: var(--color-secondary-light); }

.footer-address {
  font-style: normal;
  font-size: 0.88rem;
  line-height: 1.7;
  margin-bottom: 1rem;
}

.footer-phone a {
  color: rgba(255,255,255,0.7);
  text-decoration: none;
  font-size: 0.88rem;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: color var(--ease);
}
.footer-phone a:hover { color: var(--color-secondary-light); }

.footer-legal { padding: 1.5rem 0; }
.footer-legal-inner { font-size: 0.78rem; color: rgba(255,255,255,0.35); }

@media (max-width: 900px) {
  .footer-inner { grid-template-columns: 1fr; gap: 2rem; }
}