:root {
  --background-color: hsl(210, 20%, 98%);
  --foreground-color: hsl(210, 10%, 23%);
  --primary-color: hsl(215, 25%, 55%);
  --primary-color-text: hsl(0, 0%, 100%);
  --border-color: hsl(210, 14%, 89%);
  --shadow-color: hsl(215, 20%, 50%, 0.15);
  --dropdown-bg: hsl(0, 0%, 100%);
  --font-size-base: clamp(1rem, 1.5vw, 1.125rem);
  --border-radius: 0.75rem;
  --transition-speed: 0.25s;
}


.language-selector {
  position: relative;
  z-index: 10;
}

#language-selector-button {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4em 1.2em;
  min-width: 150px;
  justify-content: space-between;
  background-color: var(--dropdown-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  cursor: pointer;
  font-size: inherit;
  font-weight: 500;
  transition: box-shadow var(--transition-speed) ease, border-color var(--transition-speed) ease, transform var(--transition-speed) ease-in-out;
  box-shadow: 0 4px 6px -1px var(--shadow-color), 0 2px 4px -2px var(--shadow-color);
}

#language-selector-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 7px 10px -2px var(--shadow-color), 0 4px 5px -3px var(--shadow-color);
}

#language-selector-button .icon {
  width: 1.25em;
  height: 1.25em;
  stroke: currentColor;
  stroke-width: 2;
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
  transition: transform var(--transition-speed) ease-in-out;
}

#language-selector-button[aria-expanded=true] .icon {
  transform: rotate(180deg);
}

#language-selector-button:focus-visible {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
  border-color: var(--primary-color);
}

#language-selector-list {
  position: absolute;
  top: calc(100% + 0.5rem);
  right: 0;
  width: max-content;
  min-width: 100%;
  background-color: var(--dropdown-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  box-shadow: 0 10px 15px -3px var(--shadow-color), 0 4px 6px -4px var(--shadow-color);
  list-style: none;
  padding: 0.5rem;
  margin: 0;
  opacity: 0;
  transform: translateY(-10px);
  visibility: hidden;
  transition: opacity var(--transition-speed) ease, transform var(--transition-speed) ease, visibility var(--transition-speed) ease;
}

#language-selector-list.open {
  opacity: 1;
  transform: translateY(0);
  visibility: visible;
}

#language-selector-list li {
  margin: 0;
  padding: 0;
}

.language-selector-option {
  width: 100%;
  text-align: left;
  padding: 0.75em 1.25em;
  background: none;
  border: none;
  cursor: pointer;
  font-size: inherit;
  border-radius: calc(var(--border-radius) - 0.25rem);
  transition: background-color var(--transition-speed) ease, color var(--transition-speed) ease, transform var(--transition-speed) ease;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  white-space: nowrap;
}

.language-selector-option .flag {
  font-size: 1rem;
}

.language-selector-option:hover,
.language-selector-option:focus {
  background-color: #fdd001;
  color: var(--primary-color-text);
  outline: none;
  transform: translateX(4px);
}

.language-selector-option[aria-current=true] {
  font-weight: 600;
  background-color: #fdd001;
}

.language-selector-option[aria-current=true]:hover,
.language-selector-option[aria-current=true]:focus {
  background-color: var(--primary-color);
  color: var(--primary-color-text);
}