/* ============ Nav ============ */
header.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  transition:
    background 0.3s,
    border-color 0.3s,
    backdrop-filter 0.3s;
  border-bottom: 1px solid transparent;
}
header.nav.scrolled {
  background: rgba(15, 13, 26, 0.72);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--line);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  height: 72px;
  min-width: 0;
}
.brand {
  display: flex;
  align-items: center;
  gap: 0;
  flex: none;
  font-weight: 900;
  font-size: 22px;
  letter-spacing: -0.03em;
  color: #fff;
}
.brand .dot {
  color: var(--accent);
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 34px;
}
.nav-links a {
  font-size: 15px;
  font-weight: 600;
  color: var(--muted);
  transition: color 0.18s;
}
.nav-links a:hover {
  color: #fff;
}
.nav-cta {
  display: flex;
  align-items: center;
  flex: none;
  gap: 14px;
}
.nav-toggle {
  display: none;
  background: none;
  border: 0;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: #fff;
  margin: 5px 0;
  border-radius: 2px;
  transition: 0.25s;
}