/* Expandable Fact Descriptions Styling */

/* Style for the clickable ellipsis */
.fact-ellipsis {
    color: #0066cc;
    cursor: pointer;
    font-weight: bold;
    transition: color 0.2s ease;
    user-select: none;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
}

.fact-ellipsis:hover {
    color: #0052a3;
    text-decoration: underline;
}

/* Style for the collapse button */
.fact-collapse {
    color: #0066cc;
    cursor: pointer;
    font-weight: bold;
    margin-left: 5px;
    transition: color 0.2s ease;
    user-select: none;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
}

.fact-collapse:hover {
    color: #0052a3;
    text-decoration: underline;
}

/* Smooth transitions for expand/collapse */
[id$="-preview"], [id$="-full"] {
    transition: opacity 0.3s ease;
}

/* Ensure proper spacing in fact lists */
.number-significance-section li {
    margin-bottom: 12px;
    line-height: 1.6;
}

/* Improve readability of expanded facts */
[id$="-full"] {
    display: inline;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

/* Responsive design for smaller screens */
@media (max-width: 768px) {
    .fact-ellipsis, .fact-collapse {
        font-size: 0.9em;
        padding: 2px 4px;
    }
}

/* Accessibility: Focus styles */
.fact-ellipsis:focus, .fact-collapse:focus {
    outline: 2px solid #0066cc;
    outline-offset: 2px;
    border-radius: 2px;
}

/* Dark mode support (optional) */
@media (prefers-color-scheme: dark) {
    .fact-ellipsis, .fact-collapse {
        color: #4da6ff;
    }
    
    .fact-ellipsis:hover, .fact-collapse:hover {
        color: #66b3ff;
    }

    .fact-toggle-btn {
        color: #4da6ff;
    }

    .fact-toggle-btn:hover {
        color: #66b3ff;
    }
}

/* =============================================
   Phase 2B: Semantic button controls
   ============================================= */

/* Button reset — looks like inline text link */
.fact-toggle-btn {
    background: none;
    border: none;
    padding: 0;
    margin: 0;
    font: inherit;
    color: #0066cc;
    cursor: pointer;
    font-weight: bold;
    text-decoration: none;
    transition: color 0.2s ease;
    user-select: none;
    -webkit-user-select: none;
    vertical-align: baseline;
}

.fact-toggle-btn:hover {
    color: #0052a3;
    text-decoration: underline;
}

.fact-toggle-btn:focus-visible {
    outline: 2px solid #0066cc;
    outline-offset: 2px;
    border-radius: 2px;
}

/* Class-based collapsed state for full text */
.fact-full-text.collapsed {
    display: none !important;
}

/* Mobile touch-target sizing */
@media (max-width: 768px) {
    .fact-toggle-btn {
        min-width: 44px;
        min-height: 44px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
    }
}