/* ===== HEADER / NAV ===== */
header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 1rem 2rem;
  background: rgba(13, 9, 7, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: padding 0.3s;
}

.logo {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--accent);
  text-decoration: none;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.logo span { color: var(--text-primary); }

nav { display: flex; gap: 2rem; align-items: center; }

nav a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 500;
  transition: color 0.3s;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

nav a:hover { color: var(--accent); }

.nav-phone {
  display: none;
  color: var(--accent) !important;
  font-weight: 600;
  text-transform: none !important;
}
nav.open .nav-phone { display: block; }

.burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
}

.burger span {
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: 0.3s;
}

/* ===== RESPONSIVE ===== */
@media (min-width: 769px) {
  nav { display: flex !important; }
  .burger { display: none !important; }
}

@media (max-width: 768px) {
  header { padding: 0.75rem 1.25rem; }

  nav { display: none; }
  nav.open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(13, 9, 7, 0.97);
    justify-content: center;
    align-items: center;
    gap: 2rem;
    z-index: 200;
  }
  nav.open a { font-size: 1.3rem; }
  .burger { display: flex; z-index: 300; }
}