/* CHAD Language Selector Styles */
/* Stili per il selettore lingua moderno del sito CHAD */
/* Cross-browser compatibility optimized for Windows/Chromium */

/* === FLAG FALLBACK SYSTEM === */
/* Fallback per browser che non supportano emoji Unicode correttamente */
.flag-fallback {
  display: inline-block;
  width: 1.2em;
  height: 0.9em;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  border-radius: 2px;
  vertical-align: middle;
}

.flag-it { background-image: url('data:image/svg+xml;charset=utf-8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 3 2"><rect width="1" height="2" fill="%23009246"/><rect x="1" width="1" height="2" fill="%23fff"/><rect x="2" width="1" height="2" fill="%23ce2b37"/></svg>'); }
.flag-en { background-image: url('data:image/svg+xml;charset=utf-8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 60 30"><rect width="60" height="30" fill="%23012169"/><g stroke="%23fff"><path d="m0,0 60,30M60,0 0,30" stroke-width="6"/><path d="m0,0 60,30M60,0 0,30" stroke="%23C8102E" stroke-width="4"/><path d="M30,0v30M0,15h60" stroke-width="10"/><path d="M30,0v30M0,15h60" stroke="%23C8102E" stroke-width="6"/></g></svg>'); }
.flag-es { background-image: url('data:image/svg+xml;charset=utf-8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 3 2"><rect width="3" height="2" fill="%23c60b1e"/><rect y="0.5" width="3" height="1" fill="%23ffc400"/></svg>'); }
.flag-fr { background-image: url('data:image/svg+xml;charset=utf-8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 3 2"><rect width="1" height="2" fill="%23002654"/><rect x="1" width="1" height="2" fill="%23fff"/><rect x="2" width="1" height="2" fill="%23ce1126"/></svg>'); }
.flag-jp { background-image: url('data:image/svg+xml;charset=utf-8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 3 2"><rect width="3" height="2" fill="%23fff"/><circle cx="1.5" cy="1" r="0.6" fill="%23bc002d"/></svg>'); }

/* === LANGUAGE SELECTOR === */
.language-selector {
  position: relative;
  display: inline-block;
  margin-right: 15px;
  z-index: 1000;
}

.language-selector-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border: 2px solid rgba(29, 200, 205, 0.2);
  border-radius: 25px;
  /* Fallback per browser che non supportano backdrop-filter */
  background: rgba(255, 255, 255, 0.95);
  background: rgba(255, 255, 255, 0.85);
  /* Modern backdrop-filter per browser che lo supportano */
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px); /* Safari support */
  color: #1dc8cd;
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s ease;
  /* Fallback box-shadow senza blur eccessivo */
  box-shadow: 0 2px 10px rgba(29, 200, 205, 0.1);
  min-width: 80px;
  justify-content: center;
}

.language-selector-btn:hover {
  border-color: rgba(29, 200, 205, 0.4);
  background: rgba(29, 200, 205, 0.05);
  transform: translateY(-1px);
  box-shadow: 0 4px 15px rgba(29, 200, 205, 0.2);
}

.language-selector-btn:focus {
  outline: none;
  border-color: #1dc8cd;
  box-shadow: 0 0 0 3px rgba(29, 200, 205, 0.2);
}

.language-selector-btn .flag {
  font-size: 1.1em;
  line-height: 1;
}

.language-selector-btn .lang-code {
  font-weight: 600;
  letter-spacing: 0.5px;
}

.language-selector-btn .bi-chevron-down {
  font-size: 0.8em;
  transition: transform 0.3s ease;
}

.language-selector-btn[aria-expanded="true"] .bi-chevron-down {
  transform: rotate(180deg);
}

/* === LANGUAGE DROPDOWN === */
.language-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  min-width: 180px;
  /* Fallback per browser che non supportano backdrop-filter */
  background: rgba(255, 255, 255, 0.98);
  background: rgba(255, 255, 255, 0.90);
  /* Modern backdrop-filter per browser che lo supportano */
  backdrop-filter: blur(15px);
  -webkit-backdrop-filter: blur(15px); /* Safari support */
  border: 2px solid rgba(29, 200, 205, 0.1);
  border-radius: 15px;
  box-shadow: 0 10px 30px rgba(29, 200, 205, 0.15);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px) scale(0.95);
  /* Fallback transition per browser più vecchi */
  transition: all 0.3s ease;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 1001;
  overflow: hidden;
}

.language-dropdown.show {
  opacity: 1 !important;
  visibility: visible !important;
  transform: translateY(0) scale(1) !important;
  display: block !important;
}

.language-option {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  cursor: pointer;
  transition: all 0.2s ease;
  border-bottom: 1px solid rgba(29, 200, 205, 0.08);
  position: relative;
  color: #333333;
}

.language-option:last-child {
  border-bottom: none;
}

.language-option:hover {
  background: rgba(29, 200, 205, 0.08);
  color: #1dc8cd;
}

.language-option:focus {
  outline: none;
  background: rgba(29, 200, 205, 0.1);
  color: #1dc8cd;
}

.language-option.active {
  background: rgba(29, 200, 205, 0.1);
  color: #1dc8cd;
  font-weight: 600;
}

.language-option .flag {
  font-size: 1.2em;
  line-height: 1;
}

.language-option .lang-name {
  flex: 1;
  font-size: 0.9rem;
  font-weight: 500;
  color: #333333;
}

.language-option .checkmark {
  color: #1dc8cd;
  font-size: 0.9em;
  opacity: 0;
  transition: opacity 0.2s ease;
}

.language-option.active .checkmark {
  opacity: 1;
}

/* Forza la visibilità del testo */
.language-option,
.language-option .lang-name {
  color: #333333 !important;
}

.language-option:hover,
.language-option:hover .lang-name {
  color: #1dc8cd !important;
}

.language-option.active,
.language-option.active .lang-name {
  color: #1dc8cd !important;
}

/* === DARK MODE SUPPORT === */
[data-theme="dark"] .language-selector-btn {
  /* Fallback per browser che non supportano backdrop-filter */
  background: rgba(26, 26, 26, 0.95);
  background: rgba(26, 26, 26, 0.85);
  /* Modern backdrop-filter */
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-color: rgba(29, 200, 205, 0.3);
  color: #1dc8cd;
}

[data-theme="dark"] .language-selector-btn:hover {
  background: rgba(29, 200, 205, 0.1);
  border-color: rgba(29, 200, 205, 0.5);
}

[data-theme="dark"] .language-dropdown {
  /* Fallback per browser che non supportano backdrop-filter */
  background: rgba(20, 20, 20, 0.98);
  background: rgba(20, 20, 20, 0.90);
  /* Modern backdrop-filter */
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-color: rgba(29, 200, 205, 0.3);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

[data-theme="dark"] .language-option,
[data-theme="dark"] .language-option .lang-name {
  border-bottom-color: rgba(29, 200, 205, 0.2);
  color: #ffffff !important;
}

[data-theme="dark"] .language-option:hover,
[data-theme="dark"] .language-option:hover .lang-name {
  background: rgba(29, 200, 205, 0.25);
  color: #ffffff !important;
}

[data-theme="dark"] .language-option.active,
[data-theme="dark"] .language-option.active .lang-name {
  background: rgba(29, 200, 205, 0.4);
  color: #ffffff !important;
  font-weight: 600;
  text-shadow: 0 0 10px rgba(29, 200, 205, 0.3);
}

/* === RESPONSIVE DESIGN === */
@media (max-width: 991px) {
  .language-selector {
    margin-right: 10px;
  }
  
  .language-selector-btn {
    padding: 6px 10px;
    font-size: 0.85rem;
    min-width: 70px;
  }
  
  .language-dropdown {
    min-width: 160px;
    right: -10px;
  }
}

@media (max-width: 767px) {
  .language-selector {
    order: 2;
    margin-right: 8px;
  }
  
  .language-selector-btn {
    padding: 5px 8px;
    font-size: 0.8rem;
    min-width: 60px;
    gap: 6px;
  }
  
  .language-dropdown {
    min-width: 140px;
    right: -15px;
  }
  
  .language-option {
    padding: 10px 12px;
    gap: 10px;
  }
  
  .language-option .lang-name {
    font-size: 0.85rem;
  }
}

@media (max-width: 479px) {
  .language-selector-btn {
    padding: 4px 6px;
    font-size: 0.75rem;
    min-width: 50px;
    gap: 4px;
  }
  
  .language-selector-btn .flag {
    font-size: 1em;
  }
  
  .language-dropdown {
    min-width: 120px;
    right: -20px;
  }
}

/* === ANIMATION ENHANCEMENTS === */
.language-option::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  width: 3px;
  height: 100%;
  background: #1dc8cd;
  transform: scaleY(0);
  transition: transform 0.2s ease;
  transform-origin: bottom;
}

.language-option:hover::before,
.language-option.active::before {
  transform: scaleY(1);
}

/* === ACCESSIBILITY === */
/* Fallback per browser che non supportano focus-visible */
.language-selector-btn:focus {
  outline: 2px solid #1dc8cd;
  outline-offset: 2px;
}

.language-selector-btn:focus-visible {
  outline: 2px solid #1dc8cd;
  outline-offset: 2px;
}

/* Rimuovi outline per mouse click se focus-visible è supportato */
.language-selector-btn:focus:not(:focus-visible) {
  outline: none;
}

/* Fallback per browser che non supportano focus-visible */
.language-option:focus {
  outline: 2px solid #1dc8cd;
  outline-offset: -2px;
}

.language-option:focus-visible {
  outline: 2px solid #1dc8cd;
  outline-offset: -2px;
}

/* Rimuovi outline per mouse click se focus-visible è supportato */
.language-option:focus:not(:focus-visible) {
  outline: none;
}

/* === LOADING STATE === */
.language-selector.loading .language-selector-btn {
  opacity: 0.7;
  cursor: not-allowed;
}

.language-selector.loading .language-selector-btn::after {
  content: '';
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  width: 12px;
  height: 12px;
  border: 2px solid transparent;
  border-top: 2px solid #1dc8cd;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% { transform: translateY(-50%) rotate(0deg); }
  100% { transform: translateY(-50%) rotate(360deg); }
}