.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: var(--nav-bg);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
  transition: border-color var(--transition-slow), background var(--transition-slow);
}

.nav.scrolled {
  border-bottom-color: var(--border-strong);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  flex-shrink: 0;
}

.nav-logo img {
  height: 32px;
  width: auto;
}

.nav-logo-text {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.1rem;
  color: var(--text);
  letter-spacing: -0.01em;
}

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

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-link {
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-muted);
  padding: 6px 14px;
  border-radius: var(--radius-md);
  transition: color var(--transition), background var(--transition);
  text-decoration: none;
}

.nav-link:hover,
.nav-link.active {
  color: var(--text);
  background: var(--surface-2);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.theme-toggle {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-muted);
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition);
}

.theme-toggle:hover {
  border-color: var(--border-strong);
  color: var(--text);
  background: var(--surface-2);
}

.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: transparent;
  cursor: pointer;
  padding: 8px;
  transition: all var(--transition);
}

.hamburger span {
  display: block;
  height: 1.5px;
  background: var(--text-muted);
  border-radius: 2px;
  transition: all var(--transition);
}

.hamburger.open span:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}

.hamburger.open span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.hamburger.open span:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

.mobile-menu {
  display: none;
  position: fixed;
  top: 64px;
  left: 0;
  right: 0;
  background: var(--nav-bg);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
  padding: 16px 24px 24px;
  z-index: 999;
}

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

.mobile-nav-links {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 16px;
}

.mobile-nav-link {
  font-size: 0.925rem;
  font-weight: 500;
  color: var(--text-muted);
  padding: 10px 14px;
  border-radius: var(--radius-md);
  transition: all var(--transition);
  display: block;
}

.mobile-nav-link:hover {
  color: var(--text);
  background: var(--surface-2);
}