#navbar {
  width: 100%;
  height: var(--nav-height);
  top: 0;
  z-index: 1000;
  position: fixed;
  box-shadow: 0.125rem 0.125rem 0.125rem 0.0625rem rgba(0, 0, 0, 0.2);
  border-bottom: 1px solid rgba(0, 0, 0, 0.6);
  background: var(--bg-primary);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1rem;
}

.logo {
  height: 3rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.nav-links a {
  text-decoration: none;
  color: var(--color-text-primary);
}

.nav-links-desktop {
  display: none;
}

.nav-links .login,
.nav-links .registration {
  padding: 0.375rem 1rem;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  line-height: 1.2;
  border: 1px solid var(--color-text-primary);
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.nav-links .login {
  background: var(--bg-secondary);
  color: var(--color-text-primary);
}

.nav-links .login:hover {
  background: var(--color-text-primary);
  color: var(--bg-secondary);
}

.nav-links .registration {
  background: var(--color-primary);
  color: var(--color-text-primary);
  border-color: var(--color-primary);
}

.nav-links .registration:hover {
  background: var(--color-text-primary);
  color: var(--bg-secondary);
  border-color: var(--color-text-primary);
}

.nav-profile {
  display: inline-flex;
  align-items: center;
  padding: 0;
  background: transparent;
  border: none;
  cursor: pointer;
}

.nav-profile-picture {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: var(--radius-circle);
  object-fit: cover;
  border: 1px solid var(--color-border);
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.nav-profile:hover .nav-profile-picture {
  border-color: var(--color-primary);
  transform: scale(1.05);
}

.menu-toggle {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 0.375rem;
  width: 2.75rem;
  height: 2.75rem;
  padding: 0.625rem;
  background: var(--color-primary);
  border: none;
  border-radius: 0.75rem;
  cursor: pointer;
  transition: background-color 0.2s ease;
}

.menu-toggle:hover {
  background: var(--color-text-primary);
}

.menu-toggle:hover span {
  background: var(--bg-secondary);
}

.menu-toggle span {
  display: block;
  width: 100%;
  height: 3px;
  background: var(--color-text-primary);
  border-radius: 2px;
}

.nav-dropdown {
  position: absolute;
  top: var(--nav-height);
  right: 1rem;
  min-width: 10rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: 1rem;
  background: var(--bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: 0 0.25rem 0.5rem rgba(0, 0, 0, 0.15);
}

.nav-dropdown a {
  text-decoration: none;
  color: var(--color-text-primary);
  padding: 0.375rem 0.5rem;
  border-radius: var(--radius-sm);
  transition: background-color 0.2s ease, color 0.2s ease;
}

.nav-dropdown a:hover {
  background: var(--color-primary);
  color: var(--color-text-primary);
}

.nav-dropdown.hidden {
  display: none;
}

@media (min-width: 768px) {
  #navbar {
    padding: 0 4.375rem;
  }

  .nav-links-desktop {
    display: flex;
  }

  .menu-toggle {
    display: none;
  }
}

@media (min-width: 1024px) {
  .logo {
    height: 4.0625rem;
    width: 9.0625rem;
  }
}