/* ==========================================================================
   Language Switcher — Dropdown & Content Visibility (idempiere.dev)
   Adapted from ninniku.tw — English is primary language
   ========================================================================== */

/* ---------- 1. Dropdown component ---------- */

.lang-switcher {
  position: relative;
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
  margin-left: 8px;
}

/* Prevent language switcher from pushing header layout */
.desk-header .lang-switcher {
  margin-left: 8px;
  margin-right: 0;
}

.lang-switcher-btn {
  background: transparent !important;
  border: 1.5px solid #006699 !important;
  color: #006699 !important;
  padding: 4px 10px;
  border-radius: 5px;
  cursor: pointer;
  font-size: 13px;
  font-family: inherit;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  white-space: nowrap;
  transition: background 0.2s, color 0.2s;
  box-shadow: none !important;
}

.lang-switcher-btn:hover,
.lang-switcher-btn:focus {
  background: #006699 !important;
  color: #fff !important;
  outline: none;
}

.lang-switcher-btn .chevron {
  font-size: 10px;
  transition: transform 0.2s;
}

.lang-switcher.open .chevron {
  transform: rotate(180deg);
}

.lang-switcher-menu {
  display: none;
  position: absolute;
  top: calc(100% + 4px);
  right: 0;
  background: #fff;
  border: 1px solid #e2e8f0;
  border-radius: 6px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.12);
  list-style: none;
  padding: 4px 0;
  margin: 0;
  min-width: 140px;
  z-index: 10001;
}

.lang-switcher.open .lang-switcher-menu {
  display: block;
}

.lang-switcher-menu li {
  margin: 0;
  padding: 8px 16px;
  color: #333;
  font-size: 14px;
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.15s;
}

.lang-switcher-menu li:hover {
  background: #f0f4f8;
  color: #006699;
}

.lang-switcher-menu li.active {
  font-weight: 600;
  color: #006699;
  background: #f0f4f8;
}

/* ---------- 2. Language content visibility ---------- */

/* When language switcher is active, hide non-selected translation blocks */
body.lang-active details.lang-zh,
body.lang-active details.lang-ja {
  display: none !important;
}

body.lang-active .lang-en {
  display: block;
}

/* Chinese active: hide English, show Chinese */
body.show-zh .lang-en {
  display: none !important;
}

body.show-zh details.lang-zh {
  display: block !important;
  border: none;
  padding: 0;
  margin: 0;
  background: transparent;
}

body.show-zh details.lang-zh > summary {
  display: none;
}

/* Japanese active: hide English, show Japanese */
body.show-ja .lang-en {
  display: none !important;
}

body.show-ja details.lang-ja {
  display: block !important;
  border: none;
  padding: 0;
  margin: 0;
  background: transparent;
}

body.show-ja details.lang-ja > summary {
  display: none;
}

/* ---------- 3. Dark mode compatibility ---------- */
/* idempiere.dev uses html[data-theme='dark'] instead of body.dark-mode */

html[data-theme='dark'] .lang-switcher-btn {
  border-color: #6db3f2 !important;
  color: #6db3f2 !important;
}

html[data-theme='dark'] .lang-switcher-btn:hover,
html[data-theme='dark'] .lang-switcher-btn:focus {
  background: #6db3f2 !important;
  color: #1a1a2e !important;
}

html[data-theme='dark'] .lang-switcher-menu {
  background: #222;
  border-color: #333;
}

html[data-theme='dark'] .lang-switcher-menu li {
  color: #e0e0e0;
}

html[data-theme='dark'] .lang-switcher-menu li:hover {
  background: #333;
  color: #6db3f2;
}

html[data-theme='dark'] .lang-switcher-menu li.active {
  color: #6db3f2;
  background: #333;
}

/* ---------- 4. Mobile responsive ---------- */

@media (max-width: 768px) {
  .lang-switcher-btn {
    padding: 6px 10px;
    font-size: 13px;
  }
}

/* ---------- 5. Floating language switcher (mobile only) ---------- */

.lang-float {
  display: none;
}

@media (max-width: 768px) {
  .lang-float {
    display: block;
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 9999;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.3s, transform 0.3s;
    pointer-events: none;
  }

  .lang-float.visible {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
  }

  .lang-float-btn {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: #006699 !important;
    color: #fff !important;
    border: none !important;
    font-size: 15px;
    font-weight: 700;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
    transition: background 0.2s, transform 0.2s;
  }

  .lang-float-btn:active {
    transform: scale(0.95);
  }

  .lang-float-menu {
    display: none;
    position: absolute;
    bottom: calc(100% + 8px);
    right: 0;
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
    list-style: none;
    padding: 4px 0;
    margin: 0;
    min-width: 140px;
  }

  .lang-float.open .lang-float-menu {
    display: block;
  }

  .lang-float-menu li {
    margin: 0;
    padding: 10px 16px;
    color: #333;
    font-size: 15px;
    cursor: pointer;
    white-space: nowrap;
    transition: background 0.15s;
  }

  .lang-float-menu li:hover {
    background: #f0f4f8;
    color: #006699;
  }

  .lang-float-menu li.active {
    font-weight: 600;
    color: #006699;
    background: #f0f4f8;
  }

  /* Dark mode for floating button */
  html[data-theme='dark'] .lang-float-btn {
    background: #3388ee !important;
  }

  html[data-theme='dark'] .lang-float-menu {
    background: #222;
    border-color: #333;
  }

  html[data-theme='dark'] .lang-float-menu li {
    color: #e0e0e0;
  }

  html[data-theme='dark'] .lang-float-menu li:hover {
    background: #333;
    color: #6db3f2;
  }

  html[data-theme='dark'] .lang-float-menu li.active {
    color: #6db3f2;
    background: #333;
  }
}