:root {
  --learner-nav-border: #d5d2c9;
  --learner-nav-link: #315743;
  --learner-nav-focus: rgba(49, 87, 67, 0.23);
}

:root[data-theme="dark"] {
  --learner-nav-border: #2a3b67;
  --learner-nav-link: #8db1ff;
  --learner-nav-focus: rgba(141, 177, 255, 0.35);
}

.learner-nav {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  padding: 0.8rem 0;
  border-bottom: 1px solid var(--learner-nav-border);
}

.learner-nav a {
  color: var(--learner-nav-link);
  font-size: 0.88rem;
  font-weight: 700;
  text-decoration: none;
}

.learner-nav a:hover,
.learner-nav a[aria-current="page"] {
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 0.3rem;
}

.learner-nav a:focus-visible {
  outline: 3px solid var(--learner-nav-focus);
  outline-offset: 3px;
}

.home-topbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-start;
  gap: 0.8rem;
  margin-bottom: clamp(1.25rem, 2.8vw, 2rem);
}

.home-topbar .learner-nav {
  padding: 0;
  border-bottom: 0;
}

.home-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  color: var(--learner-nav-link);
  font-weight: 800;
  letter-spacing: 0.02em;
}

.home-controls {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 0.5rem;
  margin-left: auto;
}

.home-theme-toggle {
  position: static;
  width: 2.4rem;
  height: 2.4rem;
  border-radius: 999px;
  padding: 0;
  font-size: 0;
  line-height: 0;
}

.home-theme-toggle::before {
  content: "☀";
  display: inline-grid;
  place-items: center;
  width: 100%;
  height: 100%;
  font-size: 1rem;
  color: var(--learner-nav-link);
}

:root[data-theme="dark"] .home-theme-toggle::before {
  content: "☾";
}

.home-language-switcher {
  position: static;
  top: auto;
  right: auto;
}

@media (max-width: 420px) {
  .learner-nav {
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 0.6rem;
  }

  .home-topbar .learner-nav {
    width: 100%;
  }
}