.site-nav {
  position: fixed;
  inset: 0 0 auto;
  z-index: 200;
  padding: 22px 40px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: linear-gradient(to bottom, rgba(5,5,5,.85) 0%, transparent 100%);
}
.nav-logo {
  text-decoration: none;
  display: flex;
  align-items: center;
  margin-left: 20px;
}
.nav-logo img {
  height: 48px;
  width: auto;
  display: block;
}
.nav-links {
  display: flex;
  gap: 28px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-links a {
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: rgba(245,245,245,.55);
  text-decoration: none;
  transition: color .2s ease;
}
.nav-links a:hover { color: var(--white); }
.nav-links a.active { color: var(--white); }
.nav-links a:focus-visible { outline: 2px solid var(--primary); outline-offset: 4px; border-radius: 2px; }

/* hamburger button */
.nav-hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
  z-index: 300;
}
.nav-hamburger span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--white);
  transition: transform .3s ease, opacity .3s ease;
}

/* full-screen overlay */
.nav-overlay {
  position: fixed;
  inset: 0;
  z-index: 250;
  background: #050505;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
}
.nav-overlay-close {
  position: absolute;
  top: 24px;
  right: 24px;
  background: none;
  border: none;
  color: rgba(245,245,245,.5);
  font-size: 28px;
  cursor: pointer;
  line-height: 1;
  transition: color .2s ease;
}
.nav-overlay-close:hover { color: var(--white); }
.nav-overlay-links {
  list-style: none;
  margin: 0;
  padding: 0;
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 28px;
}
.nav-overlay-links a {
  font-size: 36px;
  font-weight: 900;
  letter-spacing: -.04em;
  text-transform: uppercase;
  color: rgba(245,245,245,.55);
  text-decoration: none;
  transition: color .2s ease;
}
.nav-overlay-links a:hover { color: var(--white); }

@media (max-width: 768px) {
  .nav-hamburger { display: flex; }
  .nav-links { display: none; }
  .site-nav { padding: 18px 24px; }
  .nav-logo img { height: 38px; }
}