body {
    font-family: 'Inter', sans-serif;
    background-color: #f3f4f6;
    padding: 20px;
}

.rationale {
    transition: opacity 0.3s ease-in-out;
}

/* --- Dropdown Styles --- */
.dropdown-panel {
    display: none; /* CHANGE: Use display to hide completely */
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px) scale(0.98);
    transition: all 0.2s cubic-bezier(0.25, 0.8, 0.25, 1);
    z-index: 10;
}

.dropdown-container.is-open .dropdown-panel {
    display: block; /* CHANGE: Use display to show */
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
}

.dropdown-container.is-open .dropdown-caret {
    transform: rotate(180deg);
}

.dropdown-trigger:focus-visible {
    outline: 2px solid #4f46e5;
    outline-offset: 2px;
}

.dropdown-option.is-focused {
    background-color: #f3f4f6;
}

.checkmark {
    display: none;
}

.dropdown-option[aria-selected="true"] .checkmark {
    display: block;
}

.dropdown-option[aria-selected="true"] {
    font-weight: 500;
    color: #4338ca;
}