nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--section-pad-x);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  background: rgba(6, 6, 6, 0.7);
  border-bottom: var(--border-subtle);
  transition: background var(--t-normal);
}

nav.scrolled {
  background: rgba(6, 6, 6, 0.95);
}

/* ── Logo ── */
.logo {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.4rem;
  letter-spacing: -0.02em;
  color: var(--white);
  cursor: none;
  display: flex;
  align-items: center;
  gap: 0;
}

.logo-img {
  height: 120px;
  width: auto;
  object-fit: cover;
}

.logo span {
  color: #00CFE8;
}
/* ── Nav links ── */
.nav-links {
  display: flex;
  align-items: center;
  gap: 2.5rem;
}

.nav-links a {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  transition: color var(--t-fast);
  cursor: none;
}

.nav-links a:hover {
  color: var(--white);
}

.nav-cta {
  background: var(--blue) !important;
  color: var(--white) !important;
  padding: 0.55rem 1.4rem;
  font-size: 0.78rem !important;
  transition: background var(--t-fast) !important;
}

.nav-cta:hover {
  background: #2d5fff !important;
}

/* ── Hamburger toggle ── */
.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px;
  height: 32px;
  cursor: none;
}

.menu-toggle span {
  display: block;
  width: 100%;
  height: 1.5px;
  background: var(--white);
  transition: transform var(--t-normal), opacity var(--t-normal);
  transform-origin: center;
}

.menu-toggle.open span:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}
.menu-toggle.open span:nth-child(2) {
  opacity: 0;
}
.menu-toggle.open span:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

/* ── Mobile menu overlay ── */
.nav-links.mobile-open {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  position: fixed;
  top: 65px;
  left: 0;
  right: 0;
  background: rgba(6, 6, 6, 0.98);
  padding: 2rem var(--section-pad-x);
  gap: 1.5rem;
  border-bottom: var(--border-subtle);
  z-index: 99;
  animation: slideDown 0.25s ease forwards;
}

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-10px); }
  to   { opacity: 1; transform: translateY(0); }
}