.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--space-md);
  height: var(--navbar-height);
  background: transparent;
  transition: background-color var(--transition), border-color var(--transition);
  border-bottom: 1px solid transparent;
}

.navbar--scrolled {
  background: var(--bg);
  border-bottom-color: var(--border);
}

.navbar__logo {
  font-size: var(--fs-lg);
  font-weight: 700;
  color: var(--text-bright);
  letter-spacing: 0.05em;
}

.navbar__links {
  display: flex;
  gap: var(--space-md);
}

.navbar__links a {
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--text-muted);
  transition: color var(--transition);
  font-weight: 400;
}

.navbar__links a:hover {
  color: var(--text-bright);
}

/* Theme Toggle */
.theme-toggle {
  position: relative;
  width: 50px;
  height: 26px;
  border: 1px solid var(--border);
  border-radius: 13px;
  cursor: pointer;
  transition: border-color var(--transition);
  flex-shrink: 0;
}

.theme-toggle__icon {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  font-size: 14px;
  transition: opacity var(--transition);
}

.theme-toggle__icon--moon {
  left: 6px;
  color: var(--accent);
}

.theme-toggle__icon--sun {
  right: 6px;
  color: var(--accent);
}

[data-theme="dark"] .theme-toggle__icon--moon {
  opacity: 1;
}
[data-theme="dark"] .theme-toggle__icon--sun {
  opacity: 0.3;
}
[data-theme="light"] .theme-toggle__icon--moon {
  opacity: 0.3;
}
[data-theme="light"] .theme-toggle__icon--sun {
  opacity: 1;
}

/* Hamburger */
.navbar__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
}

.navbar__hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  transition: transform var(--transition), opacity var(--transition);
}

.navbar__hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}
.navbar__hamburger.active span:nth-child(2) {
  opacity: 0;
}
.navbar__hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile Menu */
.mobile-menu {
  display: none;
  position: fixed;
  top: var(--navbar-height);
  left: 0;
  right: 0;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  flex-direction: column;
  padding: var(--space-md);
  gap: var(--space-sm);
  z-index: 999;
}

.mobile-menu[hidden] {
  display: none !important;
}

.mobile-menu.active {
  display: flex;
}

.mobile-menu a {
  font-size: var(--fs-sm);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--text-muted);
  padding: var(--space-xs) 0;
  transition: color var(--transition);
}

.mobile-menu a:hover {
  color: var(--text-bright);
}

@media (max-width: 768px) {
  .navbar__links {
    display: none;
  }

  .navbar__hamburger {
    display: flex;
  }
}