/* st-layout.css — Main container, language bar, dropdowns, swap/overflow */
/* ===== Reset for iframe context ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  scrollbar-width: thin;
  scrollbar-color: rgba(0, 0, 0, 0.08) transparent;
}

*::-webkit-scrollbar { width: 4px; height: 4px; }
*::-webkit-scrollbar-track { background: transparent; }
*::-webkit-scrollbar-thumb { background: rgba(0, 0, 0, 0.08); border-radius: 4px; }
*::-webkit-scrollbar-thumb:hover { background: rgba(0, 0, 0, 0.15); }

html, body {
  height: 100%;
  overflow: hidden;
  font-family: var(--font-family);
  color: var(--color-text-primary);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

button {
  font-family: inherit;
  border: none;
  background: transparent;
  cursor: pointer;
  color: inherit;
  font-size: inherit;
  line-height: 1;
}

button:disabled {
  cursor: not-allowed;
}

/* ===== Main Container ===== */
.split-translator {
  display: flex;
  flex-direction: column;
  height: 100vh;
  height: 100dvh;
  background: var(--color-bg);
  padding: var(--space-4) var(--space-5);
  gap: var(--space-3);
}

/* ===== Language Bar — Sneat card style ===== */
.st-language-bar {
  display: flex;
  flex-direction: row;
  align-items: center;
  height: 56px;
  min-height: 56px;
  padding: 0 var(--space-5);
  background: var(--color-card);
  border: none;
  border-radius: 8px;
  box-shadow: rgba(0,0,0,0.035) 0px 4px 20px 0px,
              rgba(31,31,30,0.12) 0px 0px 0px 0.5px;
  gap: var(--space-3);
  position: relative;
  z-index: 20;
  flex-shrink: 0;
}

.st-lang-group {
  position: relative;
}

.st-lang-selector {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-text-primary);
  transition: background var(--transition), border-color var(--transition);
  white-space: nowrap;
}

.st-lang-selector:hover {
  background: rgba(0, 0, 0, 0.05);
  border-color: rgba(0, 0, 0, 0.12);
}

.st-lang-selector.open {
  background: rgba(0, 0, 0, 0.06);
  border-color: rgba(0, 0, 0, 0.15);
}

.st-flag {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.st-lang-name {
  white-space: nowrap;
}

.st-chevron {
  flex-shrink: 0;
  transition: transform var(--transition);
}

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

.st-lang-selector:disabled {
  opacity: 0.5;
  pointer-events: none;
}

/* Language dropdown */
.st-lang-dropdown {
  display: none;
  position: absolute;
  top: calc(100% + var(--space-1));
  left: 0;
  min-width: 200px;
  max-height: 70vh;
  overflow-y: auto;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-modal);
  z-index: 100;
  padding: var(--space-1);
  display: none;
  flex-direction: column;
}

.st-lang-dropdown.open {
  display: flex;
}

/* Search field inside language dropdown */
.st-lang-search-wrap {
  padding: var(--space-1) var(--space-2) var(--space-2);
  border-bottom: 1px solid var(--color-border);
  flex-shrink: 0;
}

.st-lang-search {
  width: 100%;
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg);
  color: var(--color-text-primary);
  font-family: var(--font-family);
  font-size: var(--font-size-sm);
  outline: none;
  transition: border-color var(--transition);
}

.st-lang-search::placeholder {
  color: var(--color-text-secondary);
}

.st-lang-search:focus {
  border-color: rgba(0, 0, 0, 0.3);
}

/* Scrollable language list below search */
.st-lang-list {
  overflow-y: auto;
  flex: 1;
  min-height: 44px;
}

.st-lang-option {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  width: 100%;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-sm);
  color: var(--color-text-primary);
  transition: background var(--transition);
}

.st-lang-option:hover {
  background: rgba(0, 0, 0, 0.05);
}

.st-lang-option.selected {
  background: rgba(0, 0, 0, 0.06);
  color: var(--color-text-primary);
  font-weight: 600;
}

/* Custom language option — visual separator from presets */
.st-lang-custom {
  border-top: 1px solid var(--color-border);
  margin-top: var(--space-1);
  padding-top: var(--space-2);
  color: var(--color-text-primary);
  font-weight: 500;
}

/* "More languages" expand button — icon only */
.st-lang-expand-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  padding: 4px 0;
  margin: 0;
  border: none;
  background: none;
  color: var(--color-text-secondary, #888);
  cursor: pointer;
  transition: color 180ms ease, background 180ms ease;
  border-radius: 4px;
}
.st-lang-expand-btn:hover {
  color: var(--color-text-primary);
  background: rgba(0, 0, 0, 0.05);
}
.st-lang-expand-icon {
  transition: transform 180ms ease;
}
.st-lang-expand-btn--open .st-lang-expand-icon {
  transform: rotate(180deg);
}

/* Extended languages section — collapsed by default */
.st-lang-extended {
  display: none;
  flex-direction: column;
}
.st-lang-extended.st-lang-extended--open,
.st-lang-extended.st-lang-extended--search {
  display: flex;
}

/* Swap button */
.st-swap-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
  color: var(--color-text-secondary);
  background: var(--color-bg);
  transition: all var(--transition);
  flex-shrink: 0;
}

.st-swap-btn:hover:not(:disabled) {
  background: rgba(0, 0, 0, 0.05);
  color: var(--color-text-primary);
  border-color: rgba(0, 0, 0, 0.2);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
}

.st-swap-btn:disabled {
  opacity: 0.4;
}

/* Overflow menu */
.st-overflow-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  color: var(--color-text-secondary);
  background: var(--color-bg);
  margin-left: auto;
  transition: all var(--transition);
}

.st-overflow-btn:hover {
  background: rgba(0, 0, 0, 0.05);
  color: var(--color-text-primary);
  border-color: rgba(0, 0, 0, 0.2);
}

.st-overflow-dropdown {
  display: none;
  position: absolute;
  top: calc(100% - var(--space-1));
  right: var(--space-4);
  min-width: 180px;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-modal);
  z-index: 100;
  padding: var(--space-1);
}

.st-overflow-dropdown.open {
  display: block;
}

/* Dropdown items (shared) */
.st-dropdown-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  width: 100%;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-sm);
  color: var(--color-text-primary);
  transition: background var(--transition);
}

.st-dropdown-item:hover {
  background: var(--color-bg);
}