/* Model Selector (ChatGPT Style) */
.astro-screen-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.5rem;
}

.astro-model-selector-wrapper {
  position: relative;
  z-index: 50; /* Ensure dropdown floats above chat */
}

.astro-model-trigger {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: transparent;
  border: none;
  font-size: 1.3rem;
  font-weight: 600;
  color: rgba(240, 244, 255, 0.95);
  cursor: pointer;
  padding: 0.25rem 0.5rem;
  border-radius: 8px;
  transition: background 0.2s ease;
}

.astro-model-trigger:hover {
  background: rgba(140, 160, 255, 0.1);
}

.astro-model-name {
  background: linear-gradient(to right, #ffffff, #b0c4ff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.astro-chevron {
  opacity: 0.6;
  margin-top: 2px;
}

/* Dropdown Menu */
.astro-model-dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  margin-top: 0.5rem;
  width: 260px;
  background: rgba(16, 20, 45, 0.98);
  border: 1px solid rgba(140, 160, 255, 0.15);
  border-radius: 12px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(20px);
  padding: 0.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  transform-origin: top left;
  animation: scaleIn 0.15s ease-out;
}

.astro-model-dropdown[hidden] {
  display: none;
}

.astro-model-option {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.1rem;
  padding: 0.6rem 0.8rem;
  background: transparent;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  text-align: left;
  transition: background 0.15s ease;
}

.astro-model-option:hover:not(:disabled) {
  background: rgba(140, 160, 255, 0.08);
}

.astro-model-option.active {
  background: rgba(140, 160, 255, 0.12);
}

.astro-model-option:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.astro-opt-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  font-size: 0.9rem;
  font-weight: 500;
  color: #fff;
}

.astro-opt-desc {
  font-size: 0.75rem;
  color: rgba(190, 200, 255, 0.6);
}

.astro-tag {
  font-size: 0.65rem;
  padding: 0.1rem 0.4rem;
  border-radius: 4px;
  background: rgba(140, 160, 255, 0.2);
  color: #b0c4ff;
}

.astro-lock-icon {
  color: #ff9ca6;
}

@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.95); }
  to { opacity: 1; transform: scale(1); }
}