/* ==========================================================================
   Language Toggle Styles

   Works with lang.js to show/hide content based on the current language.
   Default language is English. When html[lang="es"] is set, Spanish
   content is shown and English content is hidden.

   Usage: Add lang="en" or lang="es" to any element that has a
   language-specific counterpart.
   ========================================================================== */

/* By default (English), hide all Spanish elements inside body */
body [lang="es"] {
  display: none;
}

/* When the page is set to Spanish, show Spanish and hide English */
html[lang="es"] body [lang="es"] {
  display: revert;
}

html[lang="es"] body [lang="en"] {
  display: none;
}

/* Language toggle button — base styles that work across all three concepts */
.lang-toggle {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  padding: 0.2em 0.5em;
  border: 1px solid currentColor;
  border-radius: 3px;
  background: transparent;
  color: inherit;
  cursor: pointer;
  transition: opacity 0.15s ease;
  font-family: inherit;
  line-height: 1;
}

.lang-toggle:hover {
  opacity: 0.7;
}

/* Theme switcher */
.theme-switcher {
  display: flex;
  gap: 0.25em;
  align-items: center;
}

.theme-btn {
  font-size: 0.7rem;
  font-weight: 600;
  width: 1.6em;
  height: 1.6em;
  padding: 0;
  border: 1px solid currentColor;
  border-radius: 3px;
  background: transparent;
  color: inherit;
  cursor: pointer;
  transition: opacity 0.15s ease, background 0.15s ease, color 0.15s ease;
  font-family: inherit;
  line-height: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.theme-btn:hover {
  opacity: 0.7;
}

.theme-btn.active {
  background: currentColor;
}

/* Invert the text color when active — works across light and dark themes */
.theme-btn.active span {
  filter: invert(1);
}

/* Dark / Light mode toggle */
.mode-toggle {
  font-size: 1rem;
  padding: 0;
  border: none;
  background: transparent;
  color: inherit;
  cursor: pointer;
  transition: opacity 0.15s ease;
  line-height: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.mode-toggle:hover {
  opacity: 0.6;
}